US2268722A

US2268722A - Railway car jack

Info

Publication number: US2268722A
Application number: US391422A
Authority: US
Inventors: Bernard R Picard
Original assignee: Individual
Current assignee: Individual
Priority date: 1941-05-01
Filing date: 1941-05-01
Publication date: 1942-01-06
Anticipated expiration: 1959-01-06

Description

Jan. 6, 1942. B P; ARD 2,268,722

RAILWAY CAR JACK File'd May 1, 1941 2 Sheets-Sheet l ATTORNEYS INVENTOR Jan. 6, 1942.

B. R. PICARD RAILWAY CAR JACK Filed May. 1, 1941 V 2 Sheets-Sheet 2 Patented Jan. 6, 1942 UNlTED STATES PATENT oFF-IcE-Qf' 2,268,722 7 RAILWAY cAnJAcK Bernard R. Picard, Fort bodgalowa Application May 1, 1941, Serial No.- 391,422

3. Claims.

This invention relates to a railway car jack and has for an object to provide a device of this character which will raise the truck side of a railway car to permit removal of wedges and brass for inspection and for other purposes, the device being so constructed as to increase the speed of inspecting wedges and brass over similar devices now in use.

A further object is to provide a device of this character which will be formed of a few strong, simple and durable parts, which will be inexpensive to manufacture, and which will not easily get out of order.

With the above and other objects in view, the invention consists of certain novel details of construction and combinations of parts hereinafter fully described and claimed, it being understood that various modifications may be resorted to within the scope ofthe appended claims without departing from the spirit or sacrificing any of the advantages of the invention.

In the accompanying drawings forming a part of this specification:

Figure l is a side elevation of a railway car jack constructed in'accordance with the invention showing the pneumatic cylinder tilted back, in dotted lines, to counterbalance the beam for easy transportation.

Figure 2 is aplan view of the railway car jack shownin Figure 1, with parts removed.

Figure 3 is a rear elevation of the railway car jack with parts in section.

Figure 4 is a front elevation of the railway car jack.

Figure 5 is a detail plan view of the lifting beam of the jack.

Figure 6 is a detail vertical sectional view taken on the line GB of Figure 1.

Referring now to the drawings in which like characters of reference designate similar parts in the various views, 10 designates a beam of Y- shape, see Figure 5, preferably formed of channel iron and adapted to pass underneath the center of the truck side on top of the rail and act as a lever, with the rail as a fulcrum to raise the truck side, indicated at H in dotted lines in Figure 1. The branches of the beam are turned with their open sides toward each other and the open sides are closed by a V-shaped plate I2. The channel irons forming the shank of the beam are disposed with their open sides contacting each other, see Figure 5, and a plate I3 is disposed on top'of the channel irons adjacent to the branches of the beam to support a post l4, see Figures 1 and 6.

The post 14 comprises a base plate 15, see Figurefi, which is-slidably mounted onthe plate l3, and is'provided' at theends with downwardly extending wings [6 which are disposed on opposite sides of thebeam toprevent the post from slippinglaterally on the beam. A short length of pipe H is welded or otherwise secured to the base plate 15 in which isdisposed a longer pipe [8 which is also welded or otherwise secured to the base plate. The two pipes form a support to interchangably receive pipes [9 of relatively different heights which are closed at the top by a plate- 20- adapted to engage underneath the side frame of the car truck. The front end of the beam isprovided with a handle 2|.

A- pneumatic cylinder 22 of relatively large ca- A pacity is mounted at the rear ends of l the branchesof the beam and is closed at the topbya cover"23-,' see Figure 3. videdwith an inverted 'frustum shaped bottom 24 having a guide boss-2 5 and having a vent opening 26. A piston 21- is disposed within the cylinder and is provided with a downwardly extending piston rod 28 which projects through the boss and below the'bossis equipped with a foot 29 which is-normally' held raised above the ground by a helical spring 30 which is sleevedon the piston rod 28 between the upper surface ofthe boss 25 and the underneath side of the piston 21;

When motive fluid islet into the cylinder above the piston, the piston is'forced downward to force, the foot 29 against the ground and elevate thev cylinder and the beam at the rear end so that the beam fulcrum's on. the rail3l, see Figure: 1, and raises the. post M to' lift the side of the truck and'permit inspection. of the wedges and brass.

The cylinder is secured to the branches of the beam through the medium of pins 32, which are engaged through the branches and V-shaped receive the pins 32 so that the cylinder may be welded or otherwise secured to the cover 23 of v the cylinder and projects at both ends beyond The cylinder is pro-' 42 enter the cover of the cylinder above the piston and are provided with respective hose 43. The hose connections are controlled by valves 44. To hold the front end of the beam against displacement from the rail, a pair'of stopmem-' bers 45 and 46, in the nature of transverselyextending cleats, are disposed on the bottom face of the front end of the beam. The cleats are adapted to lie along the inner and outer sides of the head of the rail, see Figure 1, and prevent displacement of the beam from the rail.

Since the operation of the parts has been described as the description of the parts progressed, it is thought the invention will be fully understood without further explanation.

What is claimed is:

l 1., A railway car jack comprising a beam, a

post slidably mounted on one: end of the beam, a pneumatic cylinder pivotally mounted on the other end ofthe beam for movement to an upright position and to a rearwardly inclined position, handle means extending from the rear end of the beam, a stop member connected to the cylinder engageable with the handle means for holding the cylinder in rearwardly inclined position, a stop member connected to the cylinder engageable with the beam for holding the cylinder in upright position, ground wheels connected to the beam for transporting the device, a piston rod extending through the bottom of the cylinder, a shoe on the bottom of the piston rod adapted to contact the ground, a spring sleeved on the piston rod within the cylinder normally holding the shoe raised above the ground, and

Y-shape adapted to rest at its front end upon a rail of a track underneath the center of the truck side of a railway car and form a lever fulcruming on the rail, an upright cylinder on the rear end of the Y-shaped beam, a piston within the cylinder, a shoe connected to the piston and disposed exteriorly of the cylinder adapted to rest upon the ground, a connection between the cylinder and the branches of the beam, bars secured to and extending upwardly from the branches of the beam, handles extending upwardly and rearwardly from the bars, ground wheels carried by the bars forming means by which the jack may be conveniently moved from place to place,

I the piston raised for holding the shoe off the ground, means for admitting a fluid pressure medium to the cylinder above the piston to raise means for admitting a fluid pressure medium to the cylinder above the piston to raise the cylinder ofi the piston when the shoe rests upon the ground and carry the rear end of the beam upwardly to, cause the forward end of thebeam to fulcrum on a rail and move the post upwardly to raise the truck side of a railway car.

2. A railway car jack comprising a beam of the cylinder off the piston when the shoe rests upon the ground and carry the rear end of the beam upwardly to cause the forward end of the beam to fulcrum on a rail and move the post upwardly to raise the truck side of a railway car, stop means on the front end of the beam adapted to contact with a rail head and hold the beam against displacement from the rail, and a post extending upwardly from the front end of the beam adapted to contact with the truck side of a railway car and raise said truck side when fluid pressure medium is let into the cylinder.

3. A railway car jack comprising a beam adapted to rest at its front end upon a rail of a track underneath the center of the truck side of a railway car and form a lever fulcruming on the rail, an upright-cylinder on the rear end of the beam, a piston within the cylinder, a shoe connected to the piston and disposed exteriorly of the cylinder adapted to rest upon the ground, ground wheels carried by the beam, means for admitting fluid pressure medium to the cylinder above the piston to raise the cylinder, the rear end of the beam and the ground wheels off the ground when the shoe is disposedon the ground to rock the beam upwardly at the rear end, means on the front end of the beam for preventing displacement of the beam from the rail during rocking of the beam on the rail as a fulcrum, and a post slidably mounted on the front end of the beam adapted to contact with the truck side of a railway car and raise said truck side when fluid pressure medium is let into the cylinder.

BERNARD R. PICARD;