US1829450A - Air pressure water system for passenger cars - Google Patents

Description

Oct. 27, 1931. A. B. LAWSON 1,829,450

AIR PRESSURE WATER SYSTEM FOR PASSENGER CARS Filed Jan. 17, 1930 2 Sheets-Sheet l k LZ T I] t N 3nventor N w ,e W

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Oct. 27, 1931. A. B. LAWSON AIR PRESSURE WATER SYSTEM FOR PASSENGER CARS Filed Jan. 17, 1930 2 Sheets-Sheet 2 44a K? {m flal/wm Gttomeg Patented Oct. 27, 1931 ALDEN B. LAWSON, F BALTIMORE, MARYLAND AIR PRESSURE WATER SYSTEM FOR PASSENGER CAR-S .Application filed January 17, 1930. Serial No. 421,551.

J The present air pressure water system now in use on passenger railroad cars conslsts of a water tank secured to the under side of one sideof a car, and equipped with a five Way valve, strainers, governors, etc., for controlling air'pressure that is taken away from the train line for supplying water to the car from this tank. 7

To fill the water tank in the system in vogue 10 prior to my invention, it is necessary for trainmen to insert the water hose in the filling hole or inlet X, and then push down on handle Y which opens the five way valve Z permitting the water to flow through the '15 pipe V and the strainer U into the tankl/V, and simultaneously with this action the five way valve automatically shuts off the air pressure from the water tank. This system permits the tank to be filled only from one side of '20 the car. Therefore, if the car is in a train with its water tank on opposite side of car from the station hydrant, it introduces a hazard from a safety standpoint, in that it necessitates; the terminal crew underneath the car, dragging the water hose over the rails, ballast, etc., to permit the filling of water tank. This is not only dangerous and unsanitary account of dragging the filling hose nozzle over rail and ballast, but also consumes considerable time, as the majority of stops at stations are limited to approximately 5 to 10 minutes, which makes it almost impossible for all tanks in an eight to ten car train to be filled before leaving time.

The object of my invention is to provide means in air pressure water systems for cars whereby the five way valve may be operated from either side of the car, and likewise to provide means whereby the water tank may 40 be filled from either side of the car; and with these and other ob ects in view my invention consists of the parts and combination of parts as will be hereinafter pointed out.

- In the drawings: 5 Figure 1 is a top plan view of part of an air pressure water system embodying my invention.

Figure 2 is a front elevation of Figure l with an outline of car structure added.

Figure 3 is an enlarged detail view on the line 33, Figure l.

Figure 4 is an enlarged detail end view of Figure l.

Figure 5 is an enlarged detail view showing the connection between the rod and the 5 operating handle. a

The water tank, five way valve, filling or inlet, and supply pipe have been designated by reference letters as such parts thus described are in common use in water systems for cars.

In adapting the present water system for cars to embody my invention, I attach a water supply pipe 1 at one end to the water strainer U and extend said pipe to that side of the car opposite to the side on which the tank is mounted, the outer end of this pipe 1 being secured in the casting 2 constituting the filling or inlet on that side of the car. Thus it will be seen that the five way valve Z is connected with water supply pipes leading from both sides of the car, thus obviating the necessity of a member of the crew crawling under the car and dragging the hose with him, which fact by itself is of considerable moment both to the railroad company and the station crews because it entirely eliminates this hazard to life, saves time, and increases sanitation.

The five way valve Z is first operated to cut off air pressure to the water tank, and this is accomplished in my invention by operating the levers Y and l on either side of the car, said levers being mounted with a slip fit and clutch connection to the horizontally disposed shaft 5. This slip fit and clutch connection between the shaft 5 and the operating levers Y and 4 permits the shaft to be rotated from either side of the car, so that when operating the shaft from one side of the car itdoes not 00 move the lever on the opposite side of'the car and hence liability of injury to persons by movement of the latter-named lever is avoided. 1 It is, of course, understood that a system embodying my invention does not change I the usual functioning of the five way valve and air attachments now used,

Theslip fit and clutch connection referred to adapts each operating'lever to be shifted from an operative position, in which it is clutched to the shaft, to an inoperative position in which it is free from connection with the shaft and may be' engaged with" afastener or retainer Y on the adjacent side of the car,

whereby it may be held from movement in its inoperative position 'Thefsl'i'p 'j'oint'. conneo-' tion between eoperatingi'leve si ds and the shaft 5 is made by forming a rectangular clutch portion 7 f-on therishaftf5l-nearl each end, which is designed to be interlocked in airectangularclutchfsocket or opening 8 in the operating handle, each handle also being provided with a cylindrical opening 9 to receive *that part of the" shaft "similarly formed,- so that the handle maybe jlc'lutched i to and unclutched from the'shaftby shiftin g it longitudinallyofthe latter, and so that when the handle is freefrom connection with theshaft itmay be swung up to engage its fastener or retainer Y; vTo operate the shaft 5 7 either of the operating levers Y or' l'is release'dfrom its fastener or retainer and swung fromits-inoperative position into its operative position and'then pulled outwardly on the shaft/until theriect'angular opening 8 of the handle interlocks V withithe rectangular "part'of the shaft, whereupon arotary motion of the operating lever rotates theshaft, which through the usual connections operates the live way valve cutting off the air and opening the tank for asupply, of water. .In addition to elimination of the hazard above mentioned the use of m invention reduces the-ti e required for lling tanks to a'minimum. Q The shaft" 5 is connected with the five way valve by *link'connections 10, the ends of i which are pivota'lly connected to the arms 11 rigidly securedtothe shaft5 and thevalve Z, as clearly shown inrFig ure' l. vA link'connection 12 extends" between the stem of the valve Z an'dthe'valve13 on the drain pipe of strainerUwhichfcloses drain when levers Y and 4 are pushed down when filling tank andopens drain-when levers are up to release isuialjus water from pipes and 1 p at I claimisi; -v r 1 1. In combi'natiominan air pressure water system {for passenger-icarsfa water tank, an inlet connection to said tank,'a valve controlling the supply of water through-said inlet lconnection to said tank, a water'con'duit extending from eachiside of the can tofsaid gvalve 'devlce, a valve operating element, a a etamer at each: side of the -car,and a device .the; car, said shaft being operable for controlling the flow ofwater to the inlet connection from either pipe, a'retainer at each side of the car, an operating device at each side ofthecar slidablyi'mounted on'the adjacent end of theshaft for movements between inoperative and operative positions, each operating device'being engageablefwhen in 1n'- operative position with the retainer at its a side of the carx-for holding it in such position, eachshaft end and coacting operating devicehaving clutch 5 surfaces for connecting the same when the operating devioeyis released from its retainer and moved to its" operative position. V 1

'3. In combin'atiomin an air pressure water supply system for passenger cars, a water tank having an inlet connection, a water pipe extending to 'sa-id conne'ction supply 7 from each side of the ca-r,"a valve controlling thesupply of-waterfrom either pipe to the tank through the'inlet connection, a valve actuating rock shaft extending from side to side ofthe car and j ournaled in fixed bea'r ings thereonfa retainer at each "side of the car, an operating device at each side'of. the car slidably mounted on the adjacent end of the shaft for adjustment to operative and inoperative positions, each operating device being engageable when "in inoperative position with'the retainer at its side of'the car for holding it in such position, each shaft end and coacting operating device having clutch surfaces engageable to "connect the same when the'operating device is released "from its retainerand moved to its operative position, and crank arm and link connections between the rock shaft. and the Valve,

4:. In combination, in an air pressurewater supply system for passenger cars, a-water tank having an inlet connection, a water supply pipe extending to said connection from each side of the car, a valve controlling the-supply ofwater from either pipe to the tank through' the inlet connection, a valve actuating rock shaftextending from side to side of the car and journaled inf-fixed bearings thereon, a retainer at each side "of the car, an operatingdevice 'ate'a'c'hside of the car slidably mounted on the adjacent end of the shaft. for adjustment to operative "and foo its

inoperative positions, each operating device being engageable when in inoperative position with the retainer at its side of the car for holding it in such position, each shaft end and coacting operative device having clutch surfaces engageable to connect the same when the operating device is released from its retainer and moved to its operative position, crank arm and link connections between the rock shaft and the valve, and means operative on each cut off motion of the valve for draining excess water from the pipe through which Water has been supplied.

In testimony whereof I aflix my signature.

ALDEN B. LAWSON.

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