454 SEC. 12. APPLIED MECHANICS. 



' 2211. Steam Engine. Tangye's (Willan's Patent) four-inch 

 three cylinder steam engine with horizontal multitubular boiler, 

 feed pump for same, and all fittings complete. 



Tangye Brothers and Holman. 



This engine is of the simplest construction possible ; it is self-contained, 

 has neither eccentrics, separate slide valves, nor piston rod guides, and can be 

 driven at a very high rate of speed without the slightest noise. 



2212. Steam Engine. 6-horse power expansion portable 

 steam engine, fitted with Head and Schemioth's patent straw burn- 

 ing apparatus and patent automatic governor expansion gear. 



Ransomes, Sims, and Head. 



By means of this patent invention all kinds of vegetable substances can 

 now be used as fuel in a portable steam engine, such as straw, reeds, dry 

 grass, cotton and maize stalks, brushwood, &c., and by removing the patent 

 apparatus the engine can also be fired with wood or coal in the ordinary 

 rnanner. 



This engine is also fitted with a separate expansion slide valve, and Brown's 

 patent automatic governor expansion gear, which consists of a link motion 

 attached direct to the expansion valve, and under the control of the governor, 

 by means of which the amount of steam admitted into the cylinder is varied 

 instantaneously in exact proportion to the work to be performed by the engine ; 

 an arrangement of the utmost importance in all cases where the load on the 

 engine is suddenly increased or diminished, or where exact regularity of 

 motion in the machine which is being driven is essential to success. The 

 engine has also a simple and efficient arrangement for heating the feed water 

 by means of the exhaust steam, and is provided with two safety valves, steam 

 pressure guage, and all the most modern and complete fittings and accessories. 



1954. Bra wing, on a scale of J-inch to 1 foot, of a patent 

 horizontal high-pressure condensing steam engine ; designed and 

 made by the Beading Iron Works Co., Limited, Reading. 



South Kensington Museum. 



This drawing shows a side elevation of the engine and a through plan. 



It represents an engine of 25 horse-power nominal ; having variable expan- 

 sion gear, fly wheel, governor, feed pump, and condenser. 



A similar engine was employed to drive a part of the British machinery in 

 motion at the Vienna Universal Exhibition for 1873. 



1955. Photographs, two, of a compound horizontal-cylinder 

 condensing steam engine. Constructed by the donors in 1873. 

 120 indicated horse-power. W. and J. Galloway and Sons, 

 Engineers, Knott Mill Iron Works, Manchester. 



South Kensington Museum. 



One photographic view is of the cylinder end of the engine ; the other shows 

 the fly-wheel, crank shaft, and governor motion, &c. 



The high-pressure cylinder is 14 inches in diameter. The low pressure 

 cylinder is 24 inches in diameter. The stroke of the piston is 2 feet .6 inches. 



This engine was employed in driving a portion of the British machinery in 

 motion at the Vienna Universal Exhibition of 1873. 



1956. Photograph of Brotherhood's patent three-cylinder 

 high-pressure steam engine, arranged as a stationary engine. 



