US736824A - Draw-gear for railway-cars. - Google Patents

Description

PATENTED AUG. 18, 1903.

I J. 1?. GOUR SON.

DRAW GEAR FOR RAILWAY CARS APPLIOATION FILED MAY 6, 1903.

2 SHEETSS HEET 1.

H0 MODEL.

TnLNOINS PETERS ca. Pnorouma, WASHINGTON, n. c.

No. 736,824. PATENTED AUG. 18, 1903. J. F. GOURSON.

DRAW GEAR FOR RAILWAY CARS.

APPLIOATION FILED MAY 6, 1903. N0 MODEL. I 2 SHEBTS-SHBBT 2.

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UNITED STATES Patented August 18, 1.903.;

PATENT OFFICE.

DRAW-G EAR FOR RAILWAY-ems.

SPECIFICATION forming part of Letters Patent No. 736,824, dated August 18, 1903. Application filed May 6, 19ll3. Serial No. 155,870. (No model.)

T0 at whom it may concern.-

Be itknown that I, JOHN F. OoURsoN, a citizen of the United States, residing at Pitcairn, Pennsylvania, have invented certain new and useful Improvements in Draw-Gear for Railway-Oars, of which the following is a specification.

My invention relates to draw-gear for railway-cars; and it consists in the features and combination and arrangement of parts hereinafter described, and particularly pointed out in the claims.

In the accompanying drawings, Figure l is a plan view. Fig. 2 is a cross-sectional view, and Fig. 3 a longitudinal sectional view of one form of my invention. Fig. 3 is a detail View. Fig. 4 is a plan view of another form of myinvention, Fig. 5 being across-sectional View of Fig. 4, and Fig. 6 a longitudinal sectional View of Fig. 4. I

In the drawings, 1 indicates the longitudinal sills of the car, formed, preferably, of rolled channel iron, and these are connected to the body of the car in any desired manner, and they are connected together by cross pieces 2, riveted to the flanges of the channel-irons. On the inner sides of the channel-irons bars 3 are secured, a pair of said bars being located on the inner side of each channel-iron and the members of each pair being separated from each other to receive the draft-bar 4. and to receive also friction plates or bars 5, one of which is located on the upper-sideof the draft-bar and the other upon the lower side thereof. The longitudinally-extending bars 3 are provided near their front ends with recesses 7, in which are. located ends of stop -plates 8, one of said plates being located above the upper frictionbar and the other being located below the lower friction bar or plate. The fiz'zed stopplates, together with the draft-bar and friction-plates, are provided with a rectangular opening in which is located a double spring 9, composed of outer and innermembers with end plates or followers 10, having centering draft-gear, and the follower-plates bear upon the edges of the said stop, friction, and draft plates. The friction and draft plates at or near their rear ends are provided,further,with openings 12,inwhich is locatedaspringsimilar to that before mentioned. The friction-plates are provided with cross bars or pieces 13, provided with inclined front and rear surfaces adapted to engage corresponding inclined surfaces formed on the longitudinally-extend ing bars 3. The inclined surfaces on the bars 3 I have marked 14, and there may be any desired number of these, corresponding to the inclined faces on the cross-pieces of the friction-plates. When the draft-bar is moved in either direction, the forward spring will be at once compressed and afford a yielding resistance to the movement of the bar. This immediate compression of the forward spring is a slight movement of the draft-bar, together with the friction-bars, has taken place the inclined surfaces of the friction-bar will come into contact with inclined stops or surfaces 14 on the longitudinally-extending .guide and stop-bars 3 and the movement of these friction-plates will be gradually arrested, and upon the continued movement of the draftbar the rear spring will be compressed, and in addition to this the friction-plates will be forced toward each other and will thus subject the draft plate or bar to a frictional resistance.

It will be seen from the above that this improved form of draft-gear is arranged totake up the power of the springs in succession, and, further, it is adapted to apply to the draft-bar the resistance due to the compression from the friction-plates, and this compression takes place after the forward spring is compressed.

In order to hold the springs within the openings in the several plates,I provide the lower bars 3 with longitudinally-exte-nding grooves, into which is inserted a plate 15, the upper surface of which is adapted to afiord a rest for the lower sides of the springs.

One feature of the construction above described is the facility with which the different parts may be disconnected and removed from the car and with which also they may be assembled on the car. In taking the parts from a car for purposes of repair, adjustment, or renewal it is simply necessary to remove the springs from the openings in the several plates, and this may be done by taking out the plate 15 and forcing the springs downwardly, and then the draft-bar can be drawn out, allowing the upper friction plate or bar to fall upon the lower friction plate or bar, and this will allow the upper stopplate to drop down out of the recesses in the lower sides of the bars 3, and thus this stopplate, together with the upper and lower friction-plates, can be removed, and after this is done the lower stop-plate can be raised from the recesses in the lower bars 3 to permit its removal. In assembling the parts an operation the reverse of the above takes place.

In Figs. 4, 5, and 6 I show a modification of the invention in which the rigid stopplates 16 and 17, located at the front of the draw-gear, are formed of angle-iron suitably secured by rivets or otherwise to the angleiron sills. The friction-plates 18 in this form are provided with transversely-extending shoulders having inclines 13 adapted to cooperate with stops 14', composed of channel or angle iron havinginclined or sloping walls to correspond with the inclines of the friction-plates. Substantially the same action takes place in this form of my invention as in the form before described, in that the power of the springs is taken up in succession, and the friction-plates are forced into strong frictional contact with the draft-bar by the inclined shoulders or surfaces on thedraftbar and stop bars, respectively. I provide means for fixing the draft-bar against movement in either direction, so that in cases Where long lumber or iron is loaded on two carsand extends from one car to the other the two cars may be coupled together so that neither one will have movement toward or from the other, which movement would tend to displace or disarrange the load. For this purpose I use pins 19, extending vertically through the openings in the draft-bar and in the fixed portions of the draft-geart'. 6., the

' fixed stop-platesand these pins are placed in position from beneath the draft-gear, and

7 these connecting-pins in this modified form of draft-gear; but it will be understood that they areintended to be used in connection with the form first described.

Any suitable form of coupling-head may be used in connection with the draft-bar, and I prefer the ordinary Master Oar-Builders coupling-head.

The spring at the rear end of the draftgear on relaxing will not subject the frame of the car to shock or strain, as this will be taken up entirely by the draft-bar itself.

I claim- 1. In combination in a draw-gear, a draft bar or plate, a spring carried thereby and stop means, said spring being normally unrestrained in its movement with the drawbar by the said stop means, and being restrained by the said stop means after the draw-bar is moved to a certain extent, substantially as described.

2. In combination in a draft-gear, a draftbar having an opening therein, a spring confined in the said opening and moving freely with the said draft-bar, and stop means for restraining the spring after the draft-bar has moved to a certain extent, substantially as described.

3. In combination in a draft-gear, a draftbar, a spring carried by the said draft-bar and moving freely therewith and stop means for restraining the said spring only after it has moved with the draft-bar to a certain ex tent forward or backward, substantially as described.

4. A draft-gear comprising a draft-bar, a spring carried thereby and stop means for the two ends of the spring normally out of action thereon to permit the spring to have a certain amount of free movement before being restrained by the said stop means, substantially as described.

5. A draft-gear comprising a draft-bar, a spring carried thereby, stop means normally inactive as against the said spring and arranged to restrain the same only after the spring has moved with the draft-bar to a certain extent and a second spring to be acted on by the draft-bar and stop means for the said second spring normally acting thereagainst to restrain and cause compression of the said spring upon the movement of the draw-bar, substantially as described.

6. In combination in a draft-gear, adraftbar, a spring carried thereby, stop means normally inactive upon the said spring to allow a certain free movement of the same with the draft-bar and a friction-plate acting upon the draft-bar, substantially as described.

7. In combination in a draft-gear, a draftbar, a spring carried thereby to have a certain amount of movement unrestrained, stop means for restraining the said spring and a friction-plate arranged to be pressed upon the draw-bar by the action of the said stop means, substantially as described.

8. In combination, a, draw-bar, a spring carried thereby to have a certain amount of free movement therewith, a friction-plate and stop means, the said stop means acting upon the spring through the said friction plate, substantially as described.

9. In combination in a draft-gear, a drawbar, a spring carried thereby, a friction-plate having inclines thereon and engaging the said spring and fixed inclines on the car-frame bar, a friction-plate having inclines'thereon -and fixed inclines on the frame of the car for comprising portions extending transversely between the sills of the car and having inclines thereon, substantially as described.

13. In' combination ina draft-gear, a draftbar, a plurality of springs acting upon said bar, a stop-plate having an opening for one of the springs and held rigidly in relation to the movement of the draft-bar and stop means for the. other spring, substantially as described.

14'. In combination in a draft-gear, a draftbar, a spring,a stop-plate extending between the sills of the car and'having an opening for the spring,a friction-plate, a spring connec tion between the said friction-plate and draftbar and stop means for the said friction-plate, substantially as described.

15. In combination in a draft-gear, a draft bar, a friction-plate bearing thereon, a stopplate'for a spring arranged outside of thesaid friction-plate and having an opening, and a spring located in said opening, the said draftbar also having anopeningfor the spring, substantially as described. g

16. In combinationin a draft-gear, a draftbar, a spring for restraining the movement of the draft-bar, stop means for the spring removably'held in interlocked'position with a part of the frame by the draw-bar, the said draw-bar and stop means being removable upon the removal of the spring, substantially as described.

17. In combination a draft-bar, stop means comprising a plate interlocking removably with a part of the frame when the draft-bar is in position, and a spring located in an opening in thesaid plate and holding the draftbar under restraint and in connection with the said stop-plate,substantially as described.

18. In combination, a draft-bar, a frictionplate, holding means for aspring removably interlocked with the frame and held in interlocked position by the draft-bar and frictionplate and a spring I held by the said I means removable and acting upon the draft-bar to restrain the same, substantially as described.

19. Incombination in a draft-gear, a draftbar, holding means for a spring arranged. to

be detached from theframe of the car by a movement vertically thereof, said holding means being held in interlocked position by the draw-barand asprin g connection between the said holding means and draw-bar, substantially as described.

20. In combination-in a draft-gear, a draftbar, a friction-plate on'the upper and lower side of the same, a holding-plate above and below the friction-plates removably interlocking with the frame and detachable therefrom holding means acting upon the draft-bar, said spring being removable, substanti'ally'as "described.

' .21. A draft-bar, a spring acting thereon, a plate having an opening for the spring and engaging recesses on the frame of the car, said plate beingremovable from said recesses by a vertical movement and being held in the said recesses by the draw-bar, substantially as described.

22. In combination in a draft gear, a draftbar, upper and lower friction-plates, upper and lower holding-plates having openings, a spring located in' the openings and engaging the draw-barand recesses in the frame of the car in which the said holding-plates are removably located and from which they may be removed by a vertical movement, substantially as described.

23. In combination in a draft-gear, a draftbar, friction-plates, a spring acting on the draft-bar, a holding-plate for the said spring and longitudinally-extending bars on the frame having recesses for the spring-holding plates and having inclined stops coacting'with inclines on the friction-plates,substantially as described.

24.. In combination, a draft-bar, aspring" acting thereon, means for restraining the locking the drawbar against longitudinal movement, substantially as "described. i

26. In combination in a draft-gear, a drawbar movably supported,a spring for resisting the movement of the draw-bar and means for locking the drawbar against longitudinal movement, said means consisting of a pinin sorted in the draw barfrom below and held by a part of the framework of the car, 'substantially as described.

2'7. In combination in a draft-gear, a dra wbar movably supported, a spring for resisting In testimony whereof I affix my signature the movement of the draw-bar and means for in presence of two witnesses.

locking the draw-bar against longitudinal movement, said means consisting of a pin in- JOHN F. COURSON. serted in the draw-bar from below and held by a part of the framework on the car, and Witnesses:

means for holding the said pin in place, sub- HUGH OOSGROVE,

stantially as described. GEORGE P. MERTZ.

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