FITTINGS AND DETAILS. 



95 



and 2-inch suction and delivery pipes. The tank is situated 

 20 feet above the level of the yard, giving a pressure at the 

 valve / in the yard (allowing for friction) of about 15 lb. per 

 square inch. 



A hand nozzle, marked a on Fig. 71, with copper-riveted Washing 

 hose b and gun-metal union for joint r, is provided, for the ^PP^ratus 

 purpose of washing the carriages by aid of the above pres- 

 sure, at any part of the yard. Indiarubber hose of small 

 dimensions may be used, but they are not equal in durability 

 to those of leather made by Messrs. Merryweather and others. 



Fig. 71. 



Fig. 72. 



The valve wells shown by Fig. 72 are built' in brick, in 

 cement, lined with a rendering f -inch thick of Portland cement, 

 and for the purpose of protection have a strong hinged cover 

 of cast iron. 



The valves consist of a loose screw-down hydrant with hand- Valves, 

 wheel and screwed outlet to receive the hose pipe ; they are 

 also fitted with a gun-metal cap and chain. The most con- 

 venient place for these valves, which can be used wherever a 

 pressure is to be obtained sufficient fo^ the purpose of washing 

 carriages, depends upon the plan of the stabling, and the posi- 

 tion of the carriage to be washed will be limited only by the 

 length of the hose, the latter being also used for washing out 

 the stable and boxes and flushing the drains. 



Gas is now most generally used for lighting where it is within Gas supply, 

 easy reach, and in large stables is laid on upon the principle 

 shown on Plate 39. It will be seen that where a gas engine is 



