A short history about
and prepared by
F J Ferris for the Heritage Group of the
CIBSE October 2002 - 2009
This is a short article about the Perkins family. Four generations of the family, all engineers, inventors, patentees and authors which spanned over 170 years. Each family member was directly involved with heating and ventilating of buildings. They also all carried out pioneering research into the production of artificial cold.
acob Perkins (1766 - 1849) was born in Massachusetts USA on 9th July 1766. His direct descendant line can be traced back to have been born in Newent Gloucestershire in 1590, who emigrated with his family to New England in 1631. Jacob was a prolific inventor, and before he was 21 years of age he had invented and constructed machinery for producing several articles of utility and luxury. Under the old confederation, the State of Massachusetts established a mint for the striking of copper coins, and he was employed by the Government to assist in doing this. The old Massachusetts cents, stamped with the Indian and the Eagle, were produced by him and can now only to be seen in collections. One of his most important inventions was the stereotype plate for impressing (engraving & printing) bank-notes upon steel plates.
At the age of 18 he had invented a machine
patented in the USA in December 1794, which cut and
headed nails in one operation, the title to which
invention was only sustained by a lawsuit
of 7 years duration. The nail
machine was first erected at Newburyport his native
town and afterwards at Amesbury on the river
Merimac. He also erected a mill and water wheel
there which at that time were considered wonderful
examples of engineering.
After a disasterous damaging fire in
Newburyport which destroyed many buildings he took
the design of a pump he had previously invented and
built it into construction of a fire engine. He was
awarded a USA patent in March 1813 for the invention
of the pump. A firm was formed which produced the
fire engines and hose pumps. The pump was later used
for pumping out the bilges of ships.
credited with the design of a warm air central
heating system erected in a Massachussets
Medical College in Boston in 1815. The 2 storey
building was warmed by a single stove sited in
the cellar. The warm air stove was surrounded by
a brickwork chamber, from which large diameter
pipes were fed into each room through which the
warmed air was supplied.
Whilst working in Philadelphia he met and
became friendly with Oliver Evans (1755 – 1819) who
was experimenting with the use of steam at high
pressure and also whose ideas maybe led him to
conceive his refrigerating machine. One of his
patents BP 6662 1834 was described as Improvement
in the Apparatus and Means for Producing Ice,
and in Cooling Fluids. The machine involved
was constructed by John Hague in London and used
ethyl ether, to produce a small quantity of ice. It
was notable for the use of a weighted expansion
Jacob sailed for England in May 1819, (leaving his family to join him later) with the prime purpose of interesting the Bank of England in his bank note machinery which he brought with him. he explained the system to the directors of the Bank of England but could never get the authorities of the Bank to adopt it while the Patent was still in force. The private banks however sustained him and he was able with the help of capitalists who purchased an interest in the invention, to create a manufactory for the making and printing of bank-notes.
He secured 11 patents between the years 1819 and 1836 some relating to boilers and steam engines.
In 1820 he presented to
the Society of Arts several valuable and
well-matured inventions, which were published in
the Transaction of that Society and for which
medals were awarded to him¹. His method of
generating high pressure steam at a time when it
was considered to be dangerous to exceed 5 lbs per
sq inch (psi) was the wonder of the day. In 1824
he discharged bullets under a pressure of 1500 lbs
per sq inch from a steam gun which was exhibited at
the Adelaide Gallery in the Strand. The Duke of
Wellington reported that the effect of steam at
1500 psi was equal to that of gunpowder, in
discharging bullets of one ounce weight. The
committee however, did not recommend any
experiments to be made at the expense of the
In 1843 he designed the
hot-water heating for the royal Saloon built by
the London & Birmingham Railway. It consusted
of a boiler fired by four oil burners with a ring
of pipes within the double floor of the voach. the
pipes were covered by a brass grating. the boiler
and water tank were mounted beneath the coach. te
coach itself was provided with quilted furniture
for sound and heat insulation.
Successive disappointments at length led
him to retire in 1834 from active pursuits, and the
last 15 years of his life were passed in retirement.
He was elected as the 36th Member of the Institution of Civil Engineers on the 27th February 1821 having been proposed by Thomas Telford, Joshua Field and Thomas Mawslay. He contributed a paper entitled “On Locomotive Engines and the means of supplying them with Steam” presented on the 7th February 1837.
He died in London at 84 years of age on
30th July 1849, and is buried in Kensal Green
¹ The large silver medal for his “Method for Warming and Ventilating Rooms”
“ Ventilating the Holds of Ships”
“Method of fastening the Scams of Hose for Fire-Engines, and of connecting two or more lengths of Hose together”
The Large Gold Medal for his “ Improved Ships Pump”
The Vulcan Gold Medal for his “ Method of drawing off Waste Water from Water Wheels”
Portrait of Hannah Perkins with her
grandaughter Maria Louisa Bacon
painted by the artist Chester Harding
Portrait of Jacob aged about 58 painted
by the artist Chester Harding c.1824
The list of his Patents is impressive in their engineering diversity.
Number 4400 11th October 1819 Machinery and implements applicable to ornamental turning and engraving.
Number 4470 3rd June 1820 Construction of fixed and portable pumps
Number 3732 10th December 1822 Steam engines
Number 4792 17th May 1823 Heating, boiling or evaporating by the steam of fluids in pans, boilers or other vessels
Number 4800 5th June 1823 Steam engines
Number 4870 20th November 1823 Construction of the furnace of steam boilers
Number 4952 15th May 1824 Throwing shells and other projectiles
Number 4998 9th August 1824 Propelling vessels
Number 5237 11th August 1825 Construction of bedsteads, sofas and other similar articles
Number 5477 22nd March 1827 Construction of steam engines
Number 5806 2nd July 1829 Machinery for propelling steam engines
Number 6128 2nd July 1831 Generating steam
Number 6154 27th August 1831 Generating steam; applicable to evaporating and boiling fluids for certain purposes
Number 6275 9th June 1832 Blowing and exhausting air; applicable to various purposes
Number 6336 20th November 1832 Preserving copper in certain cases from the oxidation caused by heat
Number 6662 14th August 1834 Apparatus and means for producing ice, cooling fluids
Number 7059 12th April 1836 Steam engines; generating steam; evaporating and boiling fluids for certain purposes
Number 7114 13th June 1836 Apparatus for cooking
Number 7242 3rd December 1836 Steam engines; furnaces; and boilers, partly applicable to other purposes
(1799 - 1881)
engineer, inventor, author and patentee, was named after
his uncle Angier March and the second surviving son of
Jacob and Hannah Greenleaf. Born in Newburyport,
Massachusetts USA on the 21st
August 1799. He sailed for England and arrived in
December 1821, and thereafter for some time was
associated with his father in perfecting his method of
engraving bank-notes, and also of using steam under very
high pressure. Following the subject of high pressure
steam he developed and patented a method of warming
buildings by means of circulating hot water through
small diameter pipes in a sealed system. The first
building to be heated by this type of system was in the
horticultural hot-houses at the house of John Horsley
Palmer (the then governor of the Bank of England) in
Fulham London in 1832. This method of heating came into
extensive use and was the foundation of a large business
carried out first in Harpur Street, which then moved
into Francis Street and finally into Seaford Street,
Grays End Road.
He inherited much of his father’s
talents for inventions and like his father before
him he took out many patents between the years 1831
and 1864. BP 6146, 8311 and 8804 all relate to the
high pressure hot water method of heating and
His patent in 1843 for the manufacture of and
melting of iron by the use of superheated steam was
remarkable insomuch as it evidently contained in it
the ideas of the subsequent discoveries relating
to the conversion of iron into steel, and the
elimination of phosphorus and sulphur from the iron.
His attention to detail combined with his inventive powers rendered a great service to the mechanical world. Few of his inventions were the subject of patents, but the left and right hand thread screwed joint which was patented by him, has to be admitted to have been essential in its use for hydraulic work. As a method of joining two pipes together and forming a sealed joint capable of bearing the same pressure as the pipe itself shows it to be both simple and effective.
In later years the system of circulating water in a sealed system, heated up to 2000 psi pressure was applied to the heating of baker’s ovens. This method was extensively adopted, as it possessed the advantage of being easily regulated. It was patented in 1851 BP 13509 and was later much improved.
elected the 587th
member as an Associate of
the Institution of Civil Engineers on the 5th
He married Julia Georgiana Brown in 1831 and they had four children, Angier Greenleaf, Loftus, an unknown daughter and Louisa Jane. In the census of 1881 he is recorded as living in Hampstead London with his son Loftus and his wife Emily, and their two children Loftus Patton jnr. and Ludlow Patton.
Angier March died on the 22nd April 1881 in Hampstead London at the age of 81 and is buried in Kensal Green Cemetery London.
The list of his Patents
Number 6146 30th July 1831 Apparatus for heating air in buildings
Number 8311 16th December 1839 Apparatus for transmitting heat by circulating water
Number 8804 21st January 1841 Apparatus for heating by the circulation of hot water; construction of pipes for such and other purposes
Number 9664 16th March 1843 Manufacture and melting of iron; applicable for evaporating fluids, and heating metals
21st July 1845
Apparatus for heating air in buildings
Number 13492 5th
February 1851 Railway axles and
and heating ovens.
Number 2755 6th December 1855 Apparatus for Generating Steam
2757 6th December
1855 Warming buildings and
apartments by hot
954 29th April
High Pressure Steam Engines
2124 21st September 1858
2017 21st August
1860 Apparatus for distilling
342 9th February
1862 Warming Rooms and Buildings
15th September 1864 Constructing ovens
tubular apparatus for circulating
hot water to heat the same
Perkins (1834 - 1891)
engineer, author, inventor and patentee was born
on the 8th May
1834 in Great Corham Street, Russell
Square, London. At a very early age he entered his
fathers manufactory and during 1853 – 1854 he practised
on his own account as an engineer in New York. Returning to England he
remained with his father for 8 years until 1862 working
on the steam gun and other inventions. From 1862 until
1866 he was in business on his own in Hamburg and Berlin
designing and installing many systems for warming
buildings in various parts of the continent. Returning
to England in 1866 he entered into partnership with his
father and worked on the design and construction of
steam engines, boilers and especially in developing the
use of high pressure steam as applied to steam engines.
The partnership continued until his father’s death in
He inherited much of the inventive capacity of his father and grandfather, and from 1859 onwards took out a very large number of patents. The main subjects to which he directed his activities were the use of high pressure steam as a motive power, and the production of artificial cold.
description of Loftus written by his assistant Charles J
Hayward who worked with him on many of his experiments
"He was a man with brown eyes, well proportioned in build and a great chemist and engineer. He had a large moustache and Dundreary whiskers, who always wore a double-breasted blue suit, and in the Works, a peaked cap with silk oak leaves around. In the winter he used to wear a Canadian fur cap. He came into the Works one Sunday morning dressed in white flannels with a white peaked yachting cap. He smoked 13 ounces of tobacco a week - he always carried a pouch with 4 ounces of tobacco in it. His type of tobacco was "Branksome's Light Virginia".
In conjunction with his friend Dr Williamson he took out three patents in 1859 and 1860 for surface condensers, steam engines and boilers. In one of which he says “Our chief object is to employ steam of very high pressure; as for example of 500 psi. or more or less and to expand this steam several times, and then condense it so as to obtain a great amount of power from a small quantity of steam”. He devoted many years of his life to this subject. His labours in this subject are shown in two papers read before the Institution of Mechanical Engineers in 1861 and 1877 and published in the “Proceedings” for those years. Among his many inventions is his patent in 1867 for water meters, and one in 1868 for wrought iron metal wheels, the spokes of which consisted of hollow bars or tubes screwed into the nave or tyre. A large number of gun carriage wheels were constructed using this principle for the Government, and though they stood the most severest of tests nothing more was heard of this invention.
of his inventions described in 1891 in Fletcher's book
"Steam Engines on Common Roads" says,
His yacht Anthracite, constructed in 1880 was fitted with engines working with steam at a pressure of 500 psi. and it is probably the smallest ship of that time ever to have crossed the Atlantic steaming the entire distance. The Perkins engine company published a number of reports upon her performance, drawn up respectively by Sir Frederick Bramwell, by a committee of officers of the U.S. Navy and by Sir Frederick Bramwell and Mr William Rich conjointly.
He continued with the experiments which had occupied the attentions of his father and grandfather which was the production of artificial cold which resulted in the “Arktos” a cold chamber suitable for preserving meat and other items of food. It was based on the separation of ammonia gas from the water in which it is dissolved, the liquefaction of the gas, and the subsequent revapourisation of the ammonia, with the reabsorption of the gas by the water. This was his last great work, and his unremitting attention to it inevitably caused a breakdown in his health.
became a Member of the Institution of Mechanical
Engineers in 1861 followed by Membership of the
Institution of Civil Engineers in 1881.
died on 27th April 1891 at his home in 148
Abbey Road Kilburn London at the relatively young age of
57. Compared with both his father (82) and grandfather
(83), maybe, just maybe, his addiction to tobacco and
his heavy pipe smoking compounded by the stress of his
great work load contributed to his early death. His Will
was proved on the 28th May 1891 in the sum of £1829. A
very modest sum when considered against the inventions,
Patents and other business interests he achieved during
his working lifetime. He was survived by his wife Emily
and their two sons Loftus
Patton and Ludlow Patton.
his sons worked in their fathers business which by then
had been made a limited company.
It would appear that after the death of their father and a lapse of several years, some form of discord occured between the company and the two brothers, as they both left the firm to establish their own careers.
He was a prolific inventor and made
30 Patent applications between
the years 1859 and 1879
The List of his Patents
Number 1940 25th August 1859 Mills
Number 2208 29th September 1859 Steam Boilers
Number 2686 28th November 1859 Machinery for Propelling Vessels
Number 2285 20th September 1860 Surface Condensors
Number 2392 3rd October 1860 Steam engines
Number 636 7th March 1865 Apparatus for heating and cooling atmospheric air other aeriform bodies and for heating ovens and for heating buildings
Number 3050 29th October 1866 Improvements for actuating the valves of water meters and other meters, and of engines for obtaining motive power
Number 1379 27th April 1868 Manufacture of wrought metal wheels
Number 1381 27th April 1868 Tubular Steam boilers
Number 2436 8th September 1870 Locking gear of the fore carriage of Wheeled vehicles
Number 1508 24th May 1870 Connections for fire engine hoses and other pipes
Number 1379 23rd May 1871 Wheels for traction engines
Number 1822 12th July 1871 Steam Engines
Number 2818 21st October 1871 Locomotive and traction engines
Number 2819 21st October 1871 Marine and stationary engines
Number 3845 18th December 1872 Locomotive engines
Number 2616 3rd September 1872 Packing rings for pistons
Number 224 20th January 1874 Steam-engines etc.
Number 507 6th February 1877 Steam-engines and valves
Number 2301 8th June 1878 Propellors for ships
Number 5243 23rd December 1879 Wearing surfaces of steam and other engines
oftus Patton Perkins (1868 - 1940) the eldest son of Loftus was born in Kilburn London in 1868 and in his younger years followed the engineering path of his father working in his business. In the 1901 census Loftus then aged 33 years is recorded living with his wife Henrietta in Willesden London, and giving his occupation as Mechanical Engineer. By the time of the 1911 census their only child had died and he still gave his occupation as Mechanical Engineer.
Loftus soon showed that he possessed another talent. In 1883 he prepared an advertisement extoling his ability as an artist who would undertake commissions for clients. Watercolour paintings have recently come to light which span the years 1907 to 1933. He became an accomplished artist as the watercolours shown below beautifully illustrate. The watercolours titled Thames Barges painted in 1926 and London Bridge painted in 1933, opens up a new line of research for the Group to determine how well he was known as an artist in that time period, and to establish also just how many other paintings by him still exist. Also to determine whether he no longer traded as a Mechanical Engineer.
A selection of 9 postcards painted by Loftus between 1907 and 1934 has been acquired by the Group which shows his continuing dedication to watercolours. The theme for all these postcard paintings are maritime settings, which must have been his greatest interest. Four of these paintings are shown below.
Loftus Patton died in 1940 in London, aged 72 years.
Copy of the watercolour painting kindly provided by James Buttram.
Copy of the watercolour painting kindly provided by Mike Alderson.
Patton Perkins (1873 - 1928)
the second and youngest son of Loftus was born in
Kilburn London in 1873 and followed the engineering path
of his father working in his business, which by the time
of the death of his father had become a limited company.
In the 1901 census Ludlow then aged 28 years is recorded as living at 21 Herbert Street, Moss Side, Manchester, giving his occupation as Mechanical Engineer. Coincidentally, residing at the same address is George F Buck. who was probably related to the William Edward Buck with whom Ludlow made the Patent application.
He moved to Lancaster in the year 1902 having previously lived in Manchester where he was for a number of years associated with Hy Wallmark and Co Ltd and also with Joseph Adamson and Son, of Hyde in Cheshire, with whom he was interested in the high pressure stopped-end tube boiler. His speciality was steam at very high pressures and on this subject he was very authoritative. He was a director of the Lune Valley Engineering Company Ltd of Lancaster and later practised as a Consulting Engineer, devoting his time and energies to the development of refrigerating apparatus.
In conjunction with William Edward Buck, Engineers of Carisbrooke, Battershall, Worcestershire they applied for and were granted British Patent No. 22272 dated 1892 titled "Improvements in devices for the diffusion of transference of heat” This Patent gave improvements to the basic Perkins tube which had previously been the subject of earlier patents taken out by his grandfather Angier M Perkins and great-grandfather Jacob Perkins dealing with hermetic single phase and two phase heating tubes.
In 1907 he married and from the 1911 census can be found still living in Lancaster giving his occupation as Civil Engineer. They had no children.
on 18th October 1928 at Lansdowne House, Regent Street,
Lancaster at the early age of 56 years.
first three generations of the family are all
buried in Kensal Green Cemetery London together
with their wives and other relatives, in an
imposing 3metre high grave marker monument,
surmounted by a draped urn. The people buried
there all died during the Victorian period.
The Perkins HPHW Heating System
In the early 1800’s in pre-Victorian Britain central heating systems were slowly coming into fashion with steam or warm air always being used as the heating medium. The use of hot water as an alternative form of heating medium had not yet been considered.
In 1827 an American family named Perkins arrived in this country from Massachusetts USA. Jacob Perkins (1766 – 1849) and his son Angier March Perkins (1799 – 1881) both with their families. Jacob and Angier were Engineers and inventors who had already experimented with using hot water in sealed pipework systems to create heating systems capable of operating at high temperatures and pressures.
Angier Perkins continued this research with his experiments in England and by 1831 was ready to apply for a patent for his invention. His first British Patent 6146 dated 30th July 1831 was listed as “Apparatus for heating air in Buildings” which was to be the first of many. This new method of central heating was to circulate hot water through small diameter pipes at high temperatures and pressures. The Perkins Patent for their heating system was considered an ingenious and useful invention by the Privy Council who on the 10th March 1845 granted a five year extension of the Patent, from the termination of the present Patent.
This new development in the heating of buildings quickly found favour with businesses and the aristocracy. During the 1830’s many of these systems, which had then become known as “The Perkins System”, had been installed in buildings throughout the country. The Lists of Contracts ranged from Public Buildings, Private Mansions, Churches, and Manufactories to Hothouses, Greenhouses and Conservatories, in towns and cities as far apart as the Isle of Wight to Edinburgh and Ireland.
The system is simple in its design and is formed as an endless loop of pipe, part of which is coiled around inside a brickwork furnace. The pipework is hydraulic quality tubing with the system closed and sealed. Sealing the system allowed it to operate at working pressures of up to 300 pounds per square inch and temperatures as high as 300°F.
Isometric layout of 2- circuit pipework distribution system
The system used gravity as the means of circulating the hot water around the pipework. The length of each circuit was therefore limited by the small diameter pipe size and needed to be kept to a maximum of 500 feet. Up to 15 per cent of this circuit was coiled inside the brickwork furnace. Should this length of pipework not be sufficient for the heating of the building then the endless loop was made longer in multiples of 500 feet with each circuit length returning to the brickwork furnace.
Each sealed circuit needed to be fitted with an expansion tube which had to be fitted at the top (the highest point) of the system. These closed expansion vessels allowed the heated water to expand into the vessel from the bottom and compress the air inside the vessel, thus exerting an artificial pressure on the water. Most systems were initially filled from the bottom of the pipework circuit until the top-up fill point was reached.
The tubing used is of small size approx. 1" outside diameter with the lengths of tubing joined together with right and left hand threaded pipe sockets. The sockets were of unusual design in that no jointing material was needed. The sockets used a metal to metal joint with one end of the threaded tube being chamfered. This was then pulled tight up to the flat faced end of the other length of tube.
In 1839 A M Perkins wrote to various people, companies etc who had had the Perkins system installed during the 1830's inviting a testimonial. Many people responded and these two are a sample of their replies.
Letter from Mr T Bevington of King William Street London. 6th August 1839.
"The warm water apparatus you put up for me in January 1835 which warms my countryhouse and seven warehouses has completed the object to my entire satisfaction, being both economical in fuel and cleanly in the use"
Letter from Messrs Smee & Son Wholesale Cabinet Makers & Upholsterers.
23rd September 1839
"The Patent hot water apparatus for warming our workshops and ware rooms and for heating our feather store, have been quite successful during the period we have used it, namely five years. We think it more than probable had we the same business to do again, that we should still adopt the same method; and we shall with pleasure show anyone the apparatus if it will be of service to you. Our apparatus is a quarter of a mile on extent"
THE TIMES NEWSPAPER ARTICLE
The Perkins high pressure high temperature (HPHW) hot water heating system did however have some problems early in its life. These are quite forcibly described in a letter written to the editor of THE TIMES newspaper which appeared on Saturday 20th November 1841. The letterwriter supplies a list of buildings which details a number of them that had experienced fires supposedly caused by direct contact with the very high surface temperatures of the pipes.
Wilson.Casey and Phillips, Spitalfields - Warehouse set on fire by pipes becoming red hot
Sir Hussey Vivian. Glynn House -ditto-
Mr Barbour Manchester -ditto-
Craft and Steel, Manchester Manufactory destroyed by fire in consequence of bursting of the apparatus and the fire being scattered; the damage estimated at £20,000
Museum of Natural History Manchester. Set on fire in several places by the pipes becoming overheated.
Birch chapel Manchester matting and cushions burnt by pipes becoming too hot
Unitarian Chapel Manchester -ditto-
Williams, Deacon & Co pipes set fire to joist of building; speedily extinguished without damage.
Lothbury Church Expansion pipe burst and scolded the charity children.
Lady Cockerill Seinscote apparatus burst twice during the night and caused great alarm and some damage.
Sir T Cullum Bury apparatus burst twice and destroyed much glass in the house.
Mr Ingliss Dulwich burst in furnace with damage.
Camberell Workhouse burst with much damage.
Timothy Smith & Co Birmingham -ditto-
Horticultural Gardens Chiswick -ditto-
Mr Hemming Dulwich -ditto-
Sir J Lubbock Mitcham Grove -ditto-
Guardian Fire Office -ditto-
Mr Debouverie Englefield -ditto-
Lord Beresford Bedgebury -ditto-
Inner Temple Hall -ditto
Duke of Wellington Strathfieldsays -ditto-
Marlborough House -ditto-
Why these systems went out of fashion most likely is to have been the increasing popularity of low pressure hot water heating systems which had greater flexibility to suit the more complex buildings of the 20th century. The discovery of the reason for the likely cause of its fall from grace still remains a matter of interest to the author. Another possible reason could be, that insurance companies were increasing their premiums for insuring this type of system due to the incidence of fires caused, or maybe they were even refusing to provide cover.
It states in the letter to The Times “It is a subject which alike concerns the fire insurance companies as well as individuals; and it is a well known fact, that since the commencement of the present year, in consequence of the fires which occurred in Manchester, as already stated, many insurance companies both in London and in the country have refused to insure at any premium whatever buildings heated by some of the plans which have been here described”Looking at the list of buildings damaged, one of the buildings mentioned was the Guardian Fire Office, and this could not have been good news for the Perkins company. However, these problems must have been overcome as Perkins’s systems were still being installed into the 1890’s and beyond.
However, Angier March Perkins responds to the letter writer's allegations giving a robust defence of his invention of the High Pressure heating system.
To read the letters and responding replies visit webpage The Times Newspaper
|The following article is taken from the Gardener Magazine written only months after Angier March Perkins in 1831 had received the Patent for his new mode of heating. It is therefore an indication of how this new method of heating was attracting wide interest in the horticultural world.|
This is one of the most extraordinary improvements that have yet been made in heating by this fluid. The advantages which are expected to result from it are, great economy in the first erection as there is no boiler, and the pipes in which the water is circulated are not thicker than a man’s thumb, a power of conveying heat to a greater distance than by any mode hitherto in use; of producing a much higher temperature than has hitherto been done by either water or steam even to the extent of 400º or 500º; lastly a more universal applicability of hot water as a medium for conveying heat.
The words of Mr Perkins patent are “……The object of my improvements is to obtain considerably higher degrees of temperatures to the water circulated, and thus I am enabled to apply my apparatus to a variety of purposes which require the heating medium to be at a degree of temperature higher than that of boiling water. And my improvements consist in circulating water in tubes or pipes which are closed in all parts, allowing a sufficient space for the expansion of the water contained within the apparatus, by which means the water will at all times be kept in contact with the metal, however high the degree of heat such apparatus may be submitted to, and yet at the same time, there will be no danger of bursting the apparatus in consequence of the water having sufficient space to expand …..”
Mr Perkins has employed his mode of heating in the Bank Of England, in his own manufactory in Fleet street, in some other houses and manufactories in London, in the Elephant House at the Zoological Gardens in the Regents Park, a range of Hothouses at Mr Palmers, Parsons Green Fulham.
We have seen the apparatus at work both in the Zoological Gardens and at Mr Palmer’s and we are so highly satisfied with the plan that we shall have our hothouses and Greenhouses heated by it before this magazine sees the light.
It was our intention to employ Witty’s Smoke Consuming Furnace to heat water which we intended to circulate by the syphon mode; but Perkins method will not cost above a third of the expense which this would have led us into and what is an object in all small green-houses it occupies very little room.
Perkins fireplace is also calculated to consume the greater part of the smoke; not perhaps so completely as Witty’s but still much more so than by any other mode, hitherto brought into notice which can be applied upon a small scale. To Gentlemen residing in the country, Perkins mode of heating presents an additional advantage in point of economy; and this is, that the pipes being small and consequently light (in comparison with the cast-iron pipes 4 ins or 6 ins diameter usually employed), can be sent to any distance by coach; while the mode of joining them being entirely mechanical, they may be put together by any person who can use a screw-wrench.
KEW ARCHITECTURAL CONSERVATORY
The Heritage Group have been very fortunate to be given an old Perkins system maintenance instructions information card which was originally displayed in the furnace room of a building. These instructions have been prepared by the firm Alger's of Newport who were responsible for the installation and refurbishment of many Perkins HPHW heating systems. The transcription of the maintenance instructions is as follows.
FOR THE MANAGEMENT OF R. ALGER & SONS’
IMPROVED HOT WATER HEATING APPARATUS
BEFORE LIGHTING THE FIRE DAILY.
1, Thoroughly clean out the fire box and flues of furnace and the ash pit.
NOTE. – It is impossible to obtain the heat with a dirty fire-box; a dirty ash pit may cause the fire bare and plates to burn out in a few hours.
2. Fill apparatus thus:- remove cap from air pipe on expansion tube first, then cap from filling tube ( NB – Caps must not be changed); add water as required, replace cap on filling pipe then on air pipe. It will suffice if this is done weekly : Note - the apparatus must be thoroughly cold when this is done. If there is more than one expansion, all caps all caps must be taken off before filling in water and the water must always be allowed to settle.
3. If apparatus is fitted with tank and valve, valve must always be covered with water. A line is painted on tank below which level the water must not fall when apparatus is cold. It would be well for attendants to examine valve every 2 or 3 weeks to make quite sure that both top and bottom valves are working freely and to lubricate valves with Vaseline. Note - the apparatus must be cold when this is done.
TO MAINTAIN TEMPERATURE
1. Add fuel as required
2. Keep the bars free from clinker. Keep the ash-pit thoroughly clean.
3. Keep a window, door or ventilator leading to the furnace room always open, so that the air can freely get to the fire.
1. Never touch the caps on air pipe and filling pipe while the apparatus is at work.
2. If the fire is to be maintained during the night, nearly close the damper and the ash pit door and charge the furnace with small broken coke.
3. If there is a tendency to down draught when lighting the fire, warm the flue by burning paper or shavings close to the nearest cleaning door.
4. During FROSTY weather the fire must be kept in DAY and NIGHT. If FROST has occurred since the fire was last lighted it must not be lit again until you have made quite sure that neither the boiler nor pipes are frozen otherwise it might cause an explosion.
5. A knocking noise in the pipes while heating or cooling indicates the presence of air, and the necessity of the apparatus being re-charged, in such case apply at once to the manufacturers. Noise in the pipes is sometimes caused by having a very small bright fire in furnace and then filling up with new fuel. To stop this only add a little new fuel at a time until it burns brightly, afterwards fill up. It is also caused by having a very fierce draught when the fire is burning strongly. To prevent this reduce draught by partly closing damper and ash pit door. Any defect in the furnace should be repaired immediately.
6. Any leak must be immediately stopped.
7. In the event of any repairs or alterations being required, no one unaccustomed to this form of apparatus should be called and if tampered with by inexperienced men damage can be easily done, and useless expense thereby incurred.
8. These systems should receive attention and circulations re-charged hydraulically every two or three seasons.
Apply direct to the Manufacturers
R ALGER & SONS, LTD
160 Dock Street NEWPORT
A second Operating & Maintenance Instruction Leaflet was given to the Heritage Group which interestingly covers what Perkins called their Medium Pressure Heating System. This uses a cold water storage cistern as the fill and expansion device. Two expansion relief valves are fitted within the cistern.
DIRECTIONS FOR THE MANAGEMENTJacob Angier Loftus Loftus Patton Ludlow Patton
PERKIN’S PATENT HOT-WATER HEATING APPARATUS ERECTED BY
CHARLES RITCHIE, CE. 16 Young Street Edinburgh
and Aldine Works Fountainbridge
SOLE AGENT IN SCOTLAND
SUPPLY OF WATER
1. It is most important to attend to the supply of water, as the working of the apparatus depends on it. The expansion cistern (A) should be kept two-thirds full of clean soft water; the water when heated, will rise or expand one or two inches, and will fall to the first level when it cools. The cistern should be occasionally examined by the person in charge of it (say once a fortnight), to see if the water is alright and that the valves are in proper working order. The weight on valve (B) in the cistern and the under valve (C) must not be touched when the fire is on. They should be kept clean, so as to rest on their seats, and touched occasionally to prevent them getting gagged. This must only be done when the fire is not lighted.
2. Should the water rise high, or overflow in the cistern (A), it shows that the furnace is over-heated, or the valves out of order – when it should be immediately cooled, and the cistern examined.
3. The cistern and water should be kept clean, the dirty water being drawn off by the cock at the bottom, two or three times a year.
HOW TO REGULATE THE FURNACE
4. In lighting the fire at first, the furnace should not be loaded with fuel before the circulation of the water has commenced, which is known when the flow pipe (F) feels hot to the hand.
5. When the fire is well lighted, fuel should be gradually put into the furnace, taking care never to fill it up so as to choke the openings in front of the coils; and by feeding it as required, a regular heat will be maintained. To ensure a good draught the furnace bars must be kept clear. The draught must be carefully regulated by damper (D) and the ash-pit door (P), to prevent overheating of the pipes. Should the draught become bad, it shows that the furnace flues, or the vent, are obstructed by soot, which should be removed.
6. The flow pipes (F), when rubbed with a file, should always continue a white colour when in working order – if they get yellow or blue, it indicates overheating, or want of water, and the fire must be immediately drawn off. The flow-pipes (F) are those which come out of from the upper part of the furnace.
7. The full effect of the apparatus is not attained until the return-pipes ( R ) are hot; but they should never be so hot that they cannot be held in the hand. They must always be kept hot during the continuance of heating. The return-pipes ( R ) are those which enter the lower part of the furnace.
8. The clinkers ashes and soot should be removed by the doors (H) and (P) before the fire is lighted; the bars are easily cleared of clinkers while the furnace is hot; the soot should be removed from the outside of the coils by the cleaning-doors (G).
9. The cleaning doors (G) must always be kept shut while the fire is on; also the door (H), which is only for clearing the furnace-bars.
CARE DURING FROST
10. Care must be taken that the pipes or cistern do not freeze in frosty weather – to prevent which a slow fire must be kept on all night during the continuance of the frost. Filling the furnace with fuel, but with only sufficient draught to ensure combustion. This may be done, especially on Sundays in warehouses, and in churches during the week.
11. The best fuel is gas-cinders or coke, but any fuel will do, not being bituminous or liable to clog the furnace bars.
To keep the apparatus in good working order, it should be pumped out every season.
In heating Churches, the fire must not be allowed to go out from the time it is first lighted till no longer required. Before service the temperature of the church should be raised to about 50°F; the fire may then be lowered but not neglected during service.
P.S. No one but the individual appointed should be allowed to interfere with the furnace at any time.
ELEVATION OF FURNACE
The above apparatus consists of an endless tube of wrought iron, filled with water and closed in all parts, hung exposed on the skirting of the rooms to be heated, or behind gratings, or placed in cells, enclosed in ornamental cast-iron covers. A portion of the pipe is formed into a coil and placed in a furnace of wrought iron or brickwork.
The pipes being of small diameter a very small quantity of water is required to fill the apparatus.
An expansion cistern is placed above the highest level of the circulating pipes, and is kept partially filled with water. The object of this cistern is to allow for the expansion of the water as it becomes heated, and being self-acting, to supply the pipes as they cool.
Note how the f&r have been offset to avoid having to disturb the pipe sockets
Note how the flow connection is cut too short and has pulled the top pipe
out of the bracket. No return valve.
Note the use of GF compression tee fittings. No return valve.
The GF tee fitting in close-up