US717686A - Car-coupling. - Google Patents

Description

No. 717,686. PATENTED JAN. 6, 1903.

' E. H. JANNEY.

GAR GOUPLING.

APPLICATION FILED MAY 2, 1901.

N0 MODEL.

u m WV/ZW "TIME Nrrnn ST 'rEs FATENT QFFICE.

ELI H. JANNEY, OF FAIRFAX COUNTY, VIRGINIA.

CAR-I-JCOUPLING.

SPECIFICATION forming part of Letters Patent No. 717,686, dated January 6, 1903. Application filed May 2,1901. Serial lilo. 58AM. (No model.)

To all whom it may concern.-

Be it known that I, ELI H. JANNEY, a citizen of the United States,residing in the cou nty of Fairfax, State of Virginia, have invented new and useful Improvements in'Car-Coup lings, of which thefollowing is a specification.

My invention relates to car-couplings, and more particularly to that class known as the Janney type, wherein the tail of the coup- :o linghook is provided with an inclined plane that contacts with a similar inclined plane on the locking-pin, and has for its objects, first, to provide novel means for automatically retaining the locking-pin in its raised position I 5 until the tail of the coupling-hook has passed the same onits way to the open or unlocked position, said movement of the tail automatically releasing said locking-pin to permit it to drop again to the coupling position; secondly, to'provide novel means for automatically retaining said locking-pin against upward movement while the coupling-hook is closed and the draft strain is exerted thereon, and, thirdly, to provide a novel spring mech- 2 5 anism for throwingsaid coupling-hook open when released by the locking-pin. These objects I accomplish in the manner and by the means hereinafter described and claimed, reference being had'to the accompanying draw- 0 ings, in which Figure 1 is a horizontal sectional view of my improved coupling, showing the same in its locked position. Fig. 2 is a vertical longitudinal sectional view, the coupling-hook and locking pin being shown in full lines.

Fig. 3 is a similar view, the locking-pin being shown raised and retained in the unlocked position. Fig. 1 is a detail view of two coupling-hooks, showing the tail of one of them in 0 the act of moving to the open position and automatically releasing the locking-pin to permit it to drop to its lowermost position. Fig. 5 is a detail perspective view of the coup ling-hook. Fig. 6 is a detail vertical transverse sectional view of the draw-head, showhead 2 of the well-known Janney type, in

which is'pivoted, bymeans of pin 3, the usual coupling-hooks Passingverticallythrough upper and lower apertures 5 and 6 in the drawhead 2 is the locking-pin 7, the same being cut away on its front lower side and formed with an inclined or cam surface 8, as shown.

The tail of the coupling-hook 4 is provided on its outer side with a similarly-inclined cam-surface 9, adapted to'move in the path of p the cam-surface 8, as shown. The under side of the drawhead 2 around the aperture 6 therein is formed into an inclined or cam surface 10, while the lower end of the locking-pin 7 has the usual cotter 11 therein, on which loosely rests a small spring-plate 12. The locking-pin 7 is also recessed on its front side from its lower end upward, said recess terminating in a shoulder 13, while on its side opposite to the tail of the coupling-hook 4 is a recess 14:, slightly longer than the width of the draw-head 2 at that point, as shown in Fig. 6. Said locking-pin also has its edge or corner nearest the tail of the coupling-hook 4 beveled at 15.

Mounted on a vertical pin 16 and lying in a recess in the draw-head l is a spring of the type known as the rat-trap 'spring, said pin passing through the coil 17 of the same, its free ends 18 bearing against the wall of the draw-head, while a looped free end 19 bears against the tail of the coupling-hook 4 when in its closed position. It will be observed by referring to Fig. 1 of the drawings that one face of the recess containing said spring acts as a stop for the looped free end of said spring when not compressed by the coupling-hook tail,thus maintaining the same in position to properly engage said couplinghook tail, as well as preventing its projecting in the path of downward movement of the locking-pin 7.

From the above description the operation of my improved construction will be understood to be as follows: When the parts are in their locked position,as shown in Figs. 1 and 2, the tail of the coupling-hook 2 will engage against the front half of the locking-pin 7- that is to say, against that portion of said pin opposite to the cam-surface 8 thereof-and said hook will be firmly retained in its locked position. Now when it is desired to release said hook the engine of the train is backed slightly to force the tail of the coupling-hook 4away from its locking-pin 7, when the latter may be freely drawn upward until the lower edge of cam-surface 8 thereon passes the upper edge of the tail of the coupling-hook 4, when the latter will be free to move to its open position as the cars are drawn apart,'

said movement being automatically accomplished, moreover, through the tension of the looped end 19 against the rear of the'tail-ofthe coupling-hook when the car is not coupled to another car. It will be observed, however, that as said locking-pin 7 is raised tov its unlocking position the spring-plate 1 2 thereon will contact with the cam-surface 10 on the under side of the draw-head 2, thus automatically throwing the lower end of the locking-pin 7 forward, so that the shoulder 13 thereon will engage over the edge of the draw-head 2, as shown in Fig. 3, thus retaining said locking-pin 7 inits raised or unlock-f This forward movement of the ing position. locking-pin 7, however, brings it into the path of movement of the tail of the couplinghook 4:, as shown in Fig. 4, and the latter in its movement to the open position will contact with the beveled edge 15 thereof and automatically force said locking-pin 7 backward again, so that the shoulder 13 will be released from its engagement with the draw head and the locking-pin will again drop to its locking position.

ment of said locking-pin 7. It will be observed that the recess 14 is so located as to engage the lower part of the draw head, which permits an accurate fit of the wider portion of "th'e'locking-pin 7 in the upperpart'of the draw-head, on which 'is exerted the main draft strain, saidstrai'n being'atorsional one,

due to the engagement of the coupling-hook tail against a portion only of said lockingpin, as shown in Fig. '1.

While I preferto employ the spring-plate, 12 on top ofthe cotter ll'to contactwith the cam-surface 10 on the under side of the d'rawhead 2 toforce'the lower end of -th'e'locking-- pin 7 forward, the use of the same is not essential,as the cotter 1'1 alone by contacting with said cam-surface will vperform thesame function.

Having thus described my invention, what I claim as new, and desire to secure by'Lett'ers Patent, is p p 1. In a car-coupling, the combination with the draw-headhaving a cam-surface on its under side, and the coupling-hook pivoted in said draw-head, of a vertically-movable lockin g-pin for said coupling-hook adapted in its movement to the unlocking position to contact with said cam-surface and be forced forward to engage the draw-head and be retained in its unlocking position.

2. In a car-coupling, the combination with the draw-head having a cam --surface on its under side, and the coupling-hook pivoted in said draw-head, of a vertically-movable locking-pin for said coupling-hook having a shoulder on its front side and adapted in its movement to the unlocking position to contact with said cam-surface and be forced forward to engage said shoulder thereon with the draw-head and retain it in its unlocking position.

3. In a car-coup'lin'g,"thecombination with the draw-head having'a cam-surface onits under side, and the coupling-'hookpivotedin said draw-head, of'averticall-y movable locking-pin for said coupling-hook having a shoulder on its front side, and asp'ring-iplateca'rried by said 'lockin'g-pin'and adapted to contact with said cam-surface'duringthe upward movement of said locking-pinto force the latter forward to engagesaid shou'lder'tfhe'reon with'the draw-head and retain said "lock ing-pin in its unlockinggposition.

4:. In a car-coupling, the combination "with the draw-head havinga'cam-surface on its under side, and the coupling-hook pivoted in sai draw-head, of a vertically-movable locking-pin for said'coupling-hook, adapted in'its movement to the unlocking position to contact with said camfsu'rfaceand'be forcedforward to 'en'gage'th'e draw-head and be retained inits unlocking position, said locking -pin, when in its unlocking position, lying 'in'the path of movement'of'th'e tail of the couplinghook and adapted tobe trippeditherebyto resume itslockin'g'position as said tail moves to the open position.

5. In a car-coupling, the combination with the draw-head, and the coupling-hookpivo'ted therein, of a vertically-movable locking-pin having a recess in its side opposite the tail of the coupling-hookadapted-tobe engagedwith the lowerpart of the draw-head by the pressure of said coupling hook tail'to'prevent vertical movement of said locking-pin.

6. ha car-coupling,the combination with the draw-head, the coupling-hook pivoted therein, and the locking-pin, of a spring mounted in a recess 'in'said draw-head and adapted to contact with and'be placed under tension by the tail of the coupling-hook when initslock'edpo'sition, one face of said recess limiting the movement of said spring'when not incontact with saidcoupling-hook tail.

7. In a car-coupling,the combinationwith the'draw-head, the coupling-hook pivoted therein, and the locking-pin, of a pinin'the said recess limiting the movement of said looped free portion when not in contact with said coupling-hook tail.

' Intestimony whereof I have hereunto set I 5 my hand in the presence of two subscribing when not in contact with said coupling-hook tail.

8. In a car-coupling, the combination with the draw-head, the coupling-hook pivoted therein, and the locking-pin, of a pin in the draw-head, and a spring mounted on said pin, 1 Witnesses. said spring lying in a recess in the draw-head and having its free ends contacting with the draw-head and a looped free portion contacting with the rear of the tail of the couplinghook when in its locked position, one face of 1 ELI H. JANNEY.

Witnesses:

M. J.-IIAMILroN, E. W. HAMILTON.

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