US92499A - Improved car-starter - Google Patents

Description

G. A. WILBUR.

Car Starter.

No. 92,499.v Patented' Jupy13,'1869'.

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Letters Patent No. 92,499, dated July 13, 1869; cmltedated December 4, 1868.

IMPROVED CAR-STARTER.

The Schedule referred to in these `Letters Patent and making part of the same.

To all whom it may concern:

Be it known that I, GREENLEAF A. WILBUR, of Skowhegan, in the county of Somerset, and State of Maine, have invented a new and and useful Improvement in Devices for Starting Railroad-Cars; and I do hereby declare that the following is a full and exact description of the construction and operation of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, in whichp Figure 1 is a perspective view of the running-work and lower part of the fraine of a railway-car with'my improvement attached. p

Figure 2 is a representation of the section of cogwheel, with its attachments.

Figure represents the pinion and friction-roller. Figure 4, a section of pulley and cross-chains. In'iig; 1, T'indicates the truck of the car, and f its frame O indicates the section of cog-wheel; a, the car-axle; b,the double ratchet; c,.the double pawl; d, the keper;.e e, the draughti`rame;S, the stop; h, the sliding block; and, g, the windlass.A

In g. 2, c indicates the pawl-lever; I, the point of the pawl; and x, the notched process on .the keeper. The other letters referto the same parts, as in iig. l. l.In fig. 3, W indicates the pinion; R, the frictionroller; and c', a. piece of the draught-rod geared with W. In iig. 4, m m and c fc indicate the cross-chains, and

O, the section of pulley. The other letters refer to the `same parts as in iig. 2.

AIii-constructing and applying my device, the ratchet b, iig. 1, is made with two rows of teeth, facing opposite directions, and fixed irmly to the axle.

The pawl c is made as if of two separate pawls welded to each other, the claw nearer to cog-wheel O termi nating upward in point I, while the one further from O extends upward to form pawl-lever c', tig. 2, a part of which is here carried away to expose the keeper d,

. This keeper is made with a notched process, x, which is pressed, by a spring, upon point I, and by its obvious construction retains pawl c in whatever position it may be placed,vnamcly, with either claw upon its ratchet, or when point I vfalls-into notch x, with both claws disengaged, the pawl'and keeper are attached by pivot to the cog-wheel 0, which plays loosely on the axle beside the ratch b. A. device thus described is placed on each axle' near their alternate ends.

The draught-frame e e is made by placing one rod v parallel with the car above. each cog-wheel O, and un der the car-seat, the ends of these'rods are bcnt downward below the bottomvof the car, where each one approaches the corresponding end of the opposite rod luntil meeting,.they unite with the draught-rod e. hese parallelrods are toothed, to gear with the cogs 1n O,

the purpose set forth.

and are kept in gear' during the action of the car springs, by having the teeth and cogs made long, or by placing springs above the parallel rods.

The draught-rods e pass out from under the car tween friction-rollers It, iig. 3, and pinionsVV, which .gear with draught-rods e', and are operated-by means of the windlasses g, iig. 1.

Attached to the draught-rods are stops S, which on reaching ff, communicate the full motion ofthe draught-rod to the car.

Attached to f are the sliding blocksh h', operated by means of pins passing from them up through the -iioor of the car.

Reversing-pins P I" project from the car-frame in# ward overthe cog-wheel .0. The resistance whichthese pins make to the pawl-lever c', iig. 2, adjust the pawl c.

The pulley and cross-chains, iig. 4, are made by attaching the chain m m by one -end to the section of p ulley O, at m', and by the other end to the parallel rod e, at m'..

The chain lv c' is attached by one end tothe sect-lon of pulley 0, at c', and by the other end to the parallel rod e, at r.

The pulley and cross-chains may be substituted for the cog-wheel O, tig. 1, where the use of cogs may be objectionable. section of cog-wheel O, to protect them from mud and sleet.

In using my improvement, suppose the horses attached at ef on starting in that direction, lever c', iig.V

2, will reach' P-bet'ore S will alrive at f', land pawl cwill be reversed, and the trucks T cannot revolve. Ilo obviate this slide block h to the left, and f will arrest S at the moment when I falls into the notch x, and the trucks may continue to revolve.

If the car be stopped, and it be wished to start again,

throw the draught-trame back until S meets witl1 rc sistance, and pawl c is rcadjusted for action, hence the rule: slide the blocks h and h to the left, throw the draught-frame back, and start.

'Ihe use of windlass g is to enable the driver and Vconductor to assist in starting, and, having started, to haul the car up to the horses.

I claim the sectional cog-wheels, oarryin g double pawls of described construction and operation, and which' gear into double ratchet-wheels on the axles, the whole being moved bythe sliding frame, with its ratchet-bars and attachments, substantially as described, and forY GREENLEAF A. WILBUR. Witnesses:

F. A. WILLIAMS, (l. W. PULLEN.

I encase the double pawl, ratchet, and'

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