V. FUSE-ENGINES AND PUMPS. 463 



2020a. Complete Working Model of the most Improved 

 Form of London Brigade Steam Fire Engine, as now in 



daily use in the metropolis, constructed entirely by H. Nagy 

 Effendi, Egyptian Government Pupil in the establishment of 

 Shand, Mason, & Co. Shand, Mason, fy Co. 



2020b. Complete Working Model of the most Im- 

 proved Form of London Brigade Manual Fire Engine, 



as in daily use in the metropolis. Shand, Mason, fy Co. 



1943a. Fulsometer (HalPs patent). 



Hodgkin, Neuhaus, fy Co., London. 



Self-acting steam pump, a novel application of the general principle in- 

 volved in Savery's engine, A.D. 1702. The result is produced by the pres- 

 sure of the steam from the boiler upon the surface of the water in each 

 chamber of the pump alternately, without the intervention of any steam piston 

 or plunger, and the water is lifted into the chambers by a vacuum produced 

 without injection or surface condensation. The action of the steam ball 

 which governs the pulsations is purely automatic, and the moving parts, in- 

 cluding four valves, are only five in number. 



196 7 a. Fumping Machinery (being largely used for raising 

 fluids, and the engine used as a prime mover.) 



Hayward Tyler $ Co. 



The pumping machinery, Nos. 1967a and 1963, is distinguished for great 

 simplicit}- of construction and durability of parts, Nos. 196-1 .and 1965, com- 

 bined with the above, for obtaining a longer stroke, means of starting from 

 the outside by a lever, and the obtaining of a " rest " at each end of the 

 stroke to allow time for the pump valves to close easily. 



1963. Model of a patent direct acting " Universal " steam 

 pump, as used for pumping water from mines, or for other pur- 

 poses where simplicity of construction and economy of space 

 are matters of importance. Hay ward Tyler fy Co. 



1964. Drawing showing a longitudinal and a cross section 

 through the steam cylinder of " Universal" steam pump, showing 

 steam piston with slide valve therein, and the arrangement of 

 ports. Hay ward Tyler fy Co. 



1965. Wood Model to show the action of a recent im- 

 provement in the mechanism of the " Universal " steam pump 

 for high " lifts ; " the slide valve being contained in a valve chest 

 outside the cylinder, and allowing of the use of an ordinary 

 steam piston, thus allowing a longer stroke without lengthening 

 the cylinder. Hayward Tyler fy Co. 



1966. Drawing illustrative of the arrangement of slide valve, 

 &c. for the " long stroke " " Universal " steam pump for high 

 lifts. Hat/ward Tyler $ Co. 





