US1226085A - Car-coupling. - Google Patents

Description

J. A. LARMORE.

CAR COUPLING.

APPLICATION FILED JUNE 9.191s.

Patented May 15, 1917.

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CAR-COUPLING.

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Specification of Letters Patent.

Patented May is, ieiv.

Application filed June 9,1916. Serial No. 102,607.

To all whom itmag concern:

Be it knownthat 1, James A. LARMORE, a citizen of the United States, residing at Westgrovc, county of Chester, and Stateof clennsylvania, have invented a new and useful Improvement in Car- Couplings, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which form a part of this specification.

My invention relatesto the class of car couplers generally known as of the Janney type, whereby cars provided'with them may be coupled together by the impact of coming together and without the aid of an operator. In this coupler, in general, a knuckle jaw is held in coupled position by a latch which may be sprung to accomplish the uncoupling.

The priiilcipal object of my invention is to provide a coupler combiningthese features in a novel and advantageous manner.

To this end I provide in the drawhead a knuckle jaw and a latch lever, and spring connection between the two which is always active, no matter in what position the knuckle may be.

My coupler will act to engage with an other mating coupler when the knuckle jaws ofboth are open or when one is open and the other closed- I am aware that this is not a new accomplishment, per sc, but 1 ac complish it by a very simple construction, necessitating only the parts above named, and therefore insuring a maximum of dependability and length of life at a minimum cost.

My invention has certain other features of novelty and advantage, which will be brought out in the description. j j

I will now proceed to describe in detail a preferred embodiment of my invention in connection with the accompanying drawings, in which- Figure 1 is a horizontal view, partly broken away, of two of my improved couplers in engaged relation.

Fig. 2 is a similar view showing the couplers inthe act of disengaging, one of the knuckles having been sprung open.

Fig. 3 is a similar view showing the couplers about to engage each other, both knuckles being inopen position.

a, a represent the drawheads of the opposing cars provided with my improved couplers.

The drawheads are of the usual circular shape, and each contains the knuckle jaw I). pivoted at o. Pivoted directly to the rear of pivot cis the latch lever d having the rearwardly extending arm 6. As shown,

this arm may be connected with a rod 7 extending to the side of the car for conven ience of operating.

The other arm of lever cl carries a block pivoted at 9 through which slides rod '71, pivoted to the knuckle jaw Z). This rod car ries a coiled s aringi always in compression between the lever and the knuckle jaw.

Lever d is provided with a notch j which engages the tail of the knuckle jaw when the latter is in its closed position, as shown in Fig. l and'in the right hand coupler in Fig. 2.

in order to engage thejawsand. couple the cars when the couplers are brought together bothjaws may be opened by operat ing their rods 7, each jaw being held by spring Z in a fixed open position by its nose contacting with astop is as shown in Fig. 8.

The nose of each jaw presses against the tail of the opposing jaw, and as the cars are brought together, the jaws are turned on their pivot 0 against springs '5 until their tails automatically latch themselves in notches j in the latch levers as shown in Fig. 1 and the cars are coupled together. The same result may be accomplished by opening only one of the knuckle jaws, the other remaining closed. This case is illustrated in Fig. 2 wherein it is seen'that when the couplers are brought together the nose of the closed jaw (on the right) will contact with the tail of the open jaw (on the left) and forceth'e latter. to turn into a position to engage its latch lever.

Rod 7b is pivoted to the knuckle jaw at such a point that when the jaw is in its closed position spring a tends to; hold it closed, yet when the latch lever is opened a slight pull by the opposing coupler will throw the spring across the line connecting pivots 0 and g and spring a will act to press the jaw into its open position against stop k.

When the knuckle jaw is latched in its closed position any amount of pull by theopposing coupler cannot free its tail from notch j, as the pull thereon is in a direction directly away from the pivot of lever (Z.

be members Spring 2' also insures that there shall be no shaking, or olting apart of the engaged Having now fully described my invention,

what I wish toclaim and protect by Letters Patent is:

1. Ina car coupling, in combination, a pivoted knuckle jaw provided with a tail, a pivoted latching lever adapted to engage said tail and means comprising a compressionspring interposed between said jaw and lever tending to hold the jaw closed when it is in latched position and o 'Jerating in connection with a pull on the jaw when the latching lever is moved-to release the jaw, to turn and maintain saidjjaw fully open. 1

2. In a car coupling, in combination, a

pivoted knuckle jaw provided with tail,

a pivoted latching lever adapted to engage said tail and means comprising a compression spring interposed between. said jaw and lever tending to hold the jaw fully open, and operating when said jaw is turned toward its closed position to reverse its action and hold the jaw in looking relation with the latch lever, said spring being constantly under tension.

In a car coupling, incombination, a lever pivotedbetweenits ends andhaving a rearwardly extending arm on one sideol its pivot and an arm on the other side of its pivot, said lever being notched near its pivot, a plvoted aw havmg a tall engaging,

"Ge lies of this patentmay beiobtained for said notch when in closed position and there by held from opening, and a tension device one end of Whlch is carried by and movable with the second arm of the latch lever and the other end of which carried by the aw 1 between its pivot and the engagingend of the tail.

t. In a car coupling, in combination, a

pivot, a pivoted jaw having a tail engaging said notch when in closed position and thereby held from opening, and a. tension device one end of which is carried by and movable with the second arm of the last lever and the other end of which is carried by the'jaw between its pivot and the engaging end of the tail, and the point of connection of the tension device to the jaw, when closed, being at one side of, but relatively close to a. line connecting the jaws pivot and the point of connection of the tension device with the lever, whereby, when the jaw is moved away from its closed position by the manual turning of the latch lever, said point of connection of the tension device to the jaw moves on the other slde of the line, causing the ten v JAMES A. LABMORE.

fivecents each, by addressing the Commissioner of Patents, Washington, D. 0.

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