US2639888A

US2639888A - Railroad car moving jack

Info

Publication number: US2639888A
Application number: US147453A
Authority: US
Inventors: Kilness Jarvis
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-03-03
Filing date: 1950-03-03
Publication date: 1953-05-26
Anticipated expiration: 1970-05-26

Description

y 26, 1953 J. KILNESS 2,639,888

RAILROAD CAR MOVING JACK.

Filed March 5, 1950 2 Sheets-Sheet l INVENTOR. JARVIS NLN ss May 26, 1953 J. KIILNESS RAILROAD CAR MOVING JACK Filed March 3,' 1950 Z' Sheets-Sheet 2 33 INVENTOR. JARVlS KILNESS Patented May 26, 1953 UNITED STATES PATENT OFFICE 4 Claims.

My invention relates to jacks and particularly is adapted for moving railroad cars on sidings and the like.

This application is an improvement over my now pending application Serial Number 30,239, filed June 1, 1948.

The primary object of my invention is to provide a car moving jack whose frame can be automatically locked to the rail by an air operated brake after which a pivoted bar action may be applied to the wheel of the car by a pivotally mounted bar operated by an air operated cylinder.

A further object of my invention is the building into the jack mechanism a control valve forming an integral part of the said jack, that will apply air to the said brake and air cylinder, and that will rapidly exhaust the air therefrom, at the same time the said valve mechanism will be protected from damage.

Another object of my invention is the provision of means for guiding the jack while the operator is moving the said jack along the rail after each pushing operation of the jack against the wheel.

A still further object of my invention is the provision of wheeled means for supporting the jack while moving the same from place to place.

And a further object of the invention is the provision of a valve control for supplying air to the air brake system of the car being moved by the operator while he is operating my new and improved car moving jack.

These and other incidental objects will be apparent in the drawings, specification and claims.

Referring to the drawings:

Figure 1 is a side view of my new and improved car moving jack as it would appear being moved from place to place.

Figure 2 illustrates the jack mounted to the rail and being applied against the wheel of the car, parts broken away for convenience of illustration. v

Figure 3 is an enlarged fragmentary sectional view taken on line 3--3 of Figure 2 illustrating the rail in broken lines.

Figure 4 is a perspective view of the upper end of the handle for moving the jack about and to which the air lines are connected.

I Figure 5 illustrates the jack mounted to the rail adjacent the wheel of the car in inactive position, parts broken away for convenience of illustration.

Figure 6 is a side view of the jack from the op posite side of that shown in Figures 1, 2 and 5, the same being removed from the rails.

Figure '7 is a sectional view, taken on line .F-I'

of Figure 6, illustrating the arrangement of the brake for holding the jack to the rails, parts being omitted for convenience of illustration.

Figure 8 is a fragmentary side sectional view.

Figure 9 is a plan sectional view taken on line 99 of Figure 8, showing the complete valve mechanism. v

Referring more specifically to the drawings:

My new and improved car moving jack consists of a base frame I, which is adapted to set on the rail 2. The frame I is supported on its front end by the roller 3 (Fig. 3) and has a pad I fixedly secured under its opposite end, said pad adapted to engage the rail and is preferably made from a material to prevent slipping of the frame on the rail.

Extending downwardly and centrally of the frame I is a clamp jaw 5 adapted to engage the side of the rail 2, referring to Figure '7. A movable clamp jaw 6 is pivotally mounted to the lever I at 8. The said lever I is pivotally mounted to the bracket 9 at III, the bracket being part of the base frame I. The jaw 6 is prevented from dropping down beyond the position shown in Figure 7 by the action of the stop I I but is permitted a limited pivotal movement to accommodate variation in the side of the rail 2.

The lever I is operated by the brake applicator unit I2, which is fixedly secured to the upwardly extending bracket I3 forming part of the base frame by any suitable means, as for instance the cap screws I4. The brake applicator rod I5 extends from the unit I2 and is pivotally connected to the lever 1 at I 3. Air is applied to the unit I2, as will be later described, and the lever I is forced in the direction of the arrow (Fig. 7), forcing the jaw 6 against the side of the rail and against the jaw 5, locking the base I to the said rail.

A bar or lever I1 is pivotally mounted to the base frame at I8 at its lower end, and has its upper end pivotally connected to the piston rod I9 of the air cylinder 20. The air cylinder 20 is also pivotally connected at 2I to the base frame I. The lever bar I1 is adapted to be raised by the piston rod I9, as indicated in Figure 2 against the wheel 22 of the car, by way of the roller 23 which is journalled Within the said lever bar.

Located at the bottom of the cylinder 20 is an air control valve 25, referring to Figures 8 and 9 particularly. Referring to Figure 4, an air line 26 supplies air to the jack from a source not here shown. The air enters the handle bar 2'I.of the handle 28 travelling down through the handle into the hose connection 29, referring to Figures 6 and 9.

Air enters the valve 25 by way of the passage 30, thence into the valve chamber 3I. When the operating rod 32 is pulled by the operator it will pivot the lever 33 about its pivot point 34 in the direction of the arrow (Fig. 9), forcing the plunger 35 against the ball 36 raising it from its seat 31, which will permit air to flow from the chamber 3I through the port 38, and up through the port 39 into the'cylinder 20.

n time this happens air passes through the passage- At the same The piston 42 (Fig. 8) will raise the piston'v rod I9 forcing the lever bar [1 towards the wheel of the car, referring to Figure 2, moving-'the wheel forward along the rail. When thepiston reaches the end of its travel the control rod 32 is released,

ting oh the air supply, at the same time the air contained within the cylinder 20-:-,and unit: "I 2 wille-force theplunger '35 away :from the =balli36 bringing the reduced stem 43 of theplungeri-in line with the exhaust port 44- asshownin-Figure 9, allowing the air to escape from the cylinder lfl and the bra-ke dmi-m l2, releasing the brake holding the jack to the rail.

The-operator thengpushes against the handle bar -21,-.forcing it up behind the wheel again. Then :he again :operates'the control lever '32 lockingthe-jack to the rail and causing the .cylinder 20 to force the lever I! and its roller 23 against thewheel, giving the cara further boost forward. -In the event it:is desired to 'stopthe cans-movement for-warda hose 'linethis connected-to theair line of .thecar, not here shown, then :by simply vopening the valve =45 the brakes on the ear may be applied in the usual manner.

In order to exhaustthe air out of the cylinder 20, ,a spring 41 --is fixedly secured to the base frameatdt and to thelevenll atds. This spring pulls the piston t2 down within the. cylinder 26,:forcingthegairc'ontained therein out through the port "M- of the:vahre: mechanism r as above- -described.

in order to move my new and improved car movingv jack from place toplace, I have mounted a:set of wheels-59 to thepivotally mounted arms cbyway ofthe cross shaftite. The (arms-5| are fixedly secured to the cross shaft 52-, which allows the said wheels 58 to be raised to-the position shown in Figures :2 and -5 when the; jack is being used on the rail.

When the jack is being transported from place to place on the wheels, they take the position shown in. Figures l'andwG. The voross shaft :53 reaches from one wheel to the other, there-bein one; wheel on each side of the frame. This shaft contacts the handle in theposition shown in Figure ,2. and. is held thereagainst bya-clip-j i associated withthehandle supporting the :wheels in..the; position, illustrated.

lwhemthe-jackis being :moved about :as iilustrated. in Figures ,1 and :6, i the: cross shaft :53 engages;v the. underside of the -;base frame I, supwhich will allow the ball 36 to reseat itself-snub of a rail, a cooperatingrail clamping member pivoted-ate" the base to engagethe opposite side of the rail, a fluid pressure nnit mounted on the base and operatively connected to the pivoted member, a lever pivoted to the base, fluid Dres- -sure- -;means;:-including a cylinder pivoted at one end to the base, a piston operating in the cylinder-arid pivoted to the lever, spring means conneetedwithsaid base and biasing said p ton and lever 'to retracted position, and means ineludingl a control valve mounted in the pivoted end of the cylinder and connected to the cylinder'iand unit to supply flu-id pressure simulpipe comprising. a flexible :conduitzmetweenasaid:

portingthe weight:of :thejack 'uponthelcross,

shaft 53. .By locating ,iny valve mechanism withinthe base of the. cylinder. 2%, the isaids'valve is proteotedand the portscanzbe made insuch proportions as toquicklyiexhaustthe airIfrom the cylinder 20 and the brake, cylinder 'l'2-,-which instantly responds to the operating rod 32.

Although certain specific-embodiments,of-the invention havejbeen shown and described-it is obvious that many modifications thereof are possible. The invention; therefore, .is not to i be restricted except inso far'as-is necessitated by the prior .art and by thezspiritbf the appended afiXed-srailclamping member to engageione side taneously: to, the cylinder QJHdWHHi-hxfifl'id' control valve including exhaust means opening through the endnfi-thecylinder.

12. A: deyice as defined-:in- -claim--1,-whereinthe base is provided with a roller and a handie' for advancing the base towarda -acarwheel on the raihrmeans :on the handle for operating the valve, transporting wheels and-a-support -for-said wheels andwpivotedxon. said base-for swinging said-wheels to inoperative, position :When' the base is mounted one rail-end'lto :operat-ive su-pportingand transporting position when moving the device from placeto place. 4

-3. =-A railroad car imov ing device, comprising abase,,alever1 pivoted t-o the base, a clamp. jaw pivotedtothe leverz-to-reng-age one side of a rail, a xsecjond -;:'c1amp jaw :fiXEd to "the base, pneumatically opera-ted:means-supported on the base, a connection between thepneuma-t-ically operated meanswand'the lever,:-a-bar pivoted to the one I1d';0f1the'fb&S6,2'-a roller "carriedbysaid bar to engage :the wheel ofva 110831, a cylinder pivoted to ;..the basewa piston operating :inthe cylinder andpivotallyconnected toth'e upper end of the bar, spring-V-means :connectedbetween. said base and said.- bar. iterretracting said bar, aninlet and an ."exhaust port in i the bottom of the cylinder, an air *supplyypipe' leading to' the inlet port, a lay-passportcommunicating-withthe inlet port, anwair-supply :conduituleadingirom thelay-pass port to the pneumaticallyioperated-means, and valve means-norsimultaneously --C0ntrolling :ad-

mission ,orsreleasecofzairathrough .theports to operate the clamp jawsahdzthesbar.

A trailroad scar :moving device as defined in; clainrficomprising:alhollowv handle extending from the base, means for connecting;said:handle to a sourcefofiair iunrlerpressnregsaid rairtsupnly handle and said; valve inlet portaaccontrolzmem- 'ber slidably carried by said handle for actuatingt said -v'alveumeams, a railisengagnig; r-eilerszon said base facilitating movement. bf said base: by a said handle along the rai1,-.:a shart on saidba'se,

arms extena-ingzrrom the-shaft, shaft "at: the outerends of the arm'sfinna-wheels-mounted on the second-mentioned sh'ait;wherebysaid-Wheels' can be turnednnder thebaseland-engage. under samexto support said baseiabove the'ground.

"JARWSKILNESS.

' "References Citeddn the file of this patent UNITED STATESPATENTS Number .:Name Date 52,2045000 Bierce FJune .1,l1,; 1940 27173109 :Schneider .l June 1,4; 1949 PATENTS Number Country Date 4 10,2539 ioerma ylnlunh TJan.j28, I927 642,585 Germany pl IMar, 19,11937