. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . between the shop line and the reser-voirs can be opened or closed by means of the long han-dled cocks A, to which chains reaching to the floor areattached. By opening the connection, when the pumpsare at work, they are made to compress against the shopsystem pressure and the air delivered is available forutilization elsewhere. When closed, the pump deliversdirect to the drums and an orifice test is possible. 324 October. 1923 RAILWAY AND LOCOMOTIVE ENGINEERING 325 There is a panel board near
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . between the shop line and the reser-voirs can be opened or closed by means of the long han-dled cocks A, to which chains reaching to the floor areattached. By opening the connection, when the pumpsare at work, they are made to compress against the shopsystem pressure and the air delivered is available forutilization elsewhere. When closed, the pump deliversdirect to the drums and an orifice test is possible. 324 October. 1923 RAILWAY AND LOCOMOTIVE ENGINEERING 325 There is a panel board near the center of the rack carry-ing four air pressure gauges that are connected, one toeach drum, and a steam gauge connected to the mainsteam supply line. It will be seen that there is a drumfor each pump. Beneath the parnel there is a four-feed the portion of the rod entering this counter-bore is scaledotf to 53 in., 53ys in., 53^ in. and 533^8 in., and can beheld in place by a lock screw. This scale makes it possible to caliper the distance be-tween the inside faces of the wheels very Test Rack for Compound Air Pump hydrostatic lubricator B, with pipes leading to the rightand left to the pumps. The steam and exhaust pipes run along the back of theTack at the bottom and top respectively, and are markedC and D on the end elevation. The racks for holding the pumps are made of 6 2 in. flat steel bent to an L shape and braced with}i in. diagonals of the same width. The pumps are carried by the brackets E, on whichthey are hung by means of their brackets. Very littleadjustment of the pumps to place is needed as the pipingfor both the air and steam connections is fitted with flex-ible joints so that the couplings can be brought into con-tact and fastened without trouble. The lock screw is loosened and the end C screwed outuntil the two ends of the gauge are in contact with theinside faces of the wheels. Then the lock screw is tight-
Size: 2126px × 1175px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
