US2578267A - Machine for moving boxcars - Google Patents

Description

A. SELINGER EIAL 2,578,267 MACHINE FOR MOVING BOXCARS Dec. 11, 1951 Filed March 23, 1948 Fig./.

24 I6) 58 36 I4 69 f 5 g; 42 F TILE-2; 2;; as /2 52 Inventors An fan Salinger Olaf Bakke Patented Dec. 11, 1951 MACHINE FOR MOVING BOXCARS Anton Selinger, New England, and Olaf Bakke, De Sart, N. Dak.

Application March 23, 1948, Serial No. 16,458

Claims. (Cl. 105-141) This invention relates to new and useful improvements in devices for moving railroad cars and the like and the primary object of the present invention is to provide a frame slidable on a rail and embodying novel and improved means for driving or sliding the frame on the rail to pull a box car.

Another important object of the present invention is to provide a machine for moving box cars including a rail engaging roller and novel and improved means for driving the roller and for forcing the roller into frictional engagement with a rail.

A further object of the present invention is to provide a machine for moving box cars and the like that is quickly and readily applied to or removed from a box car in a convenient manner.

A still further aim of the present invention is to provide a machine of the aforementioned character that is small and compact in structure, strong and reliable in use, simple and practical in construction, relatively inexpensive to manufacture, and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a side elevational view showing the present invention in use for moving a box car;

Figure 2 is a top plan view of the present invention applied to a track; and,

Figure 3 is an enlarged transverse sectional view taken substantially on the plane of broken section line 3-3 of Figure 1.

Referring now to the drawings in detail, wherein for the purpose of illustration, there is disclosed a preferred embodiment of the present invention, the numeral l0 represents an elongated channel shaped frame that frictionally engages a rail 12 with the web portion l4 of the said frame frictionally engaging the upper surface [6 of the rail.

Preferabl integrally formed with the sides of the frame I!) is a pair of spaced parallel, arcuate ears I8 that rotatably support a removable driven shaft 20 one end 22 of which projects outwardly from a sleeve 24 that is rigidly secured to one of the ears Hi. This end 22 of the shaft 20 is suitably keyed to a sprocket wheel 26 which is connected to the drive shaft engaging wheel 28 of a suitable motor 30 that is fixed on the frame by an endless link chain 32.

Pivotally secured to the sides of the frame in are the ends 34 of a pair of support arms 36 the free ends 38 of which are connected by a bolt and nut 40 that rotatably supports an idler roller or wedge 42 for a purpose which will later be more fully apparent.

Removably keyed on the driven shaft 20 is a rail engaging roller 44 having an annular groove 46 that frictionally engages the upper surface I6 of the rail l2. The sides 48 of the groove 45 are inclined outwardly relative to each other and are provided with a plurality of circumferentially spaced gripping teeth 50 that frictionally engage the inclined side edges 52 of the rail l2.

Fixed on the frame In by a support bracket or the like 54, is an inclined lever 56 having a handle 58 at one end. This lever 56 is connected by a flexible towing chain 60 to a portion of a box car or the like 62.

In practical use of the present invention, the roller 44 frictionally engages the upper surface It of the rail [2, and the teeth 50 frictionally engage the inclined side edges 52 of the rail l2 as shown best in Figure 3 of the drawings. The lower surface of the idler roller 42 frictionally engages the roller 44 and the upper surface of the idler roller 42 frictionally engages one wheel 64 of the box car 62. As the motor 30 is actuated, the roller 44 will be driven to drive or slide the frame In on the rail l2. As the box car 62 is pulled by the frame [0 the wheel 64 will rotate to force the idler roller 42 against the rail engaging member or roller 44 to effect the necessary frictional engagement of the roller 44 with the rail l2 to move the frame [0, it being understood, that the roller 44 and wheel 64 will rotate in the same direction whereas the idler roller 42 will rotate in an opposite direction from the wheel 64 and roller 44.

In view of the foregoing description taken in conjunction with the accompanying drawings it is believed that a clear understanding of the device will be quite apparent to those skilled in this art. A more detailed description is accordingly deemed unnecessary.

It is to be understood, however, that even though there is herein shown and described a preferred embodiment of the invention the same is susceptible to certain changes fully comprehended by the spirit of the invention as herein described and the scope of the appended claims.

Having described the invention, what is claimed as new is:

1. A machine for moving box cars comprising a channel member slidably received on a rail, a pair of spaced ears projecting outwardly from one end of said channel member, a driving spool journaled for rotation on said ears and including outwardly flanged portions, circumferentially spaced teeth provided on the outer periphery of said flanged portions, means mounted on said channel member for driving said spool, an idler roller bearing against said spool and adapted for wedging positioning between said spool and a car wheel for forcing the spool against a rail, and links pivotally securing said roller to said channel member.

2. A machine for towing box cars comprising a frame slidably received on a rail, a rail engaging roller journaled for rotation on said frame and having an annular, central groove, said groove having inclined sides conforming to the inclined side edges of a rail, teeth provided on the inclined sides of said groove adapted to grip the inclined side edges of a rail, a roller bearing against the rail engaging roller and wedged between said rail engaging roller and a box car wheel to force the rail engaging roller against a rail, means pivotally securing said roller to said frame, and means for driving said rail engaging roller.

3. A machine for moving box cars comprising a frame slidable on a rail, means for attaching the frame to a boxcar, a roller carried by the frame frictionally engaging a rail, means for rotating the roller, and an idler roller bearing against the first named roller and contacting a wheel of a car for 1" orcing the first named roller into frictional engagement with a rail.

4. The combination of claim 3 and means pivotally securing said idler roller to said frame.

5. A machine for moving box cars comprising a channel member slidably received on a rail, a pair of spaced ears projecting outwardly from one end of said channel member, a driving spool journaled for rotation on said ears and including outwardly flanged portions, circumferentially spaced teeth provided on the outer periphery of said flanged portions, means mounted on said channel member for driving said spool, an idler roller bearing against said spool and adapted for Wedging positioning between said spool and a car wheel for forcing the spool against a rail, links pivotally securing said roller to said channel member, and means attached to said channel member for anchoring the channel member to a box car.

ANTON SELINGER. OLAF BAKKE.

aEFERnNcEs CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date l,712,33{1 Durban at 8,1 May 7, 1929 1,850,065 sawisville Mar. 15, 1932 FOREIGN PATENTS Number Country Date 486,482 France Jan. 15, 1918

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