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Publication numberUS12976 A
Publication typeGrant
Publication dateMay 29, 1855
Publication numberUS 12976 A, US 12976A, US-A-12976, US12976 A, US12976A
InventorsHarvey Webster
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Harvey webster and alonzo webster
US 12976 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)




Specification of Letters Patent No. 12,976, dated May 29, 1855.

To all whom it may concern:

Be it known that we, HARVEY WEBSTER and ALONZO WEBSTER, of Montpelier, in the county of Washington and State of Vermont, have invented an improvement in mechanism by which a horse may be suddenly disengaged from a carriage while running away with the same or whenever required to be detached from it quickly; and we do hereby declare that our invention is fully described and represented inthe following specification and the accompanying drawings, letters, figures, and references thereof.

Of the said drawings, Figure 1, exhibits a top view of a whililetree having our improvement applied to it. Fig. 2, is a hori- Zontal section of the same, such also exhibiting the traces as applied to said whiflietree. Fig. 3, is a top view of the whiifletree as it appears when its spring clamps are thrown outward, and the traces are discharged from their stationary pins or holders.

In these drawings A, denotes the Whitfietree from each end of which there projects a stationary pin, o. In rear of this pin there is arranged on the whiftletree, a sliding clamp b, which is formed as seen in the drawings and forced outward by means of a spring, c. Projecting from the shank of said clamp and toward the pin or holder, a, is a stud, d, which may be termed the cast off its purpose being to discharge a trace B, from the pin or holder, a, when the clamp b, is unlatched and is being sprung outward.

The rear end of each trace is formed with a hole through it fo-r the reception of the pin, a, and there is projecting upward from the shank of the clamp, b, and through the whiftletree, a'stud, e, which operates in connection with a spring lever latch, f', formed and arranged on the whiiiietree as seen in the drawings. When the clamp, b, is forced into the whitfletree to its greatest extent it, will be maintained in such position by the spring latch taking upon the stud, e. Under these circumstances, should the lever latch be moved so as to be thrown out of engagement with the stud, e, the clamp, b, will be set free and thrown forward by the spring, its cast off being carried against the trace so las to throw the latter olf its pin and thus disengage it from the whiflietree. A cord, g, is attached to the outerA arms of the spring lever latches and extends upward within reach of a person in the carriage. By pulling on the cord, both traces simultaneously may be set free from the whiflletree.

Our invention, in comparison with others of a like character, has many advantages. It enables the traces to be hitched to the whiffletree with great facility and ease, and to be securely confined thereto without danger of being detached by the ordinary movements of the carriage or horse. It also enables them to be readily unhitched from the whiflietreed whenever an accident occurs or is likely to occur, either while the carriage is in motion or at rest. In case the whiiiletree should become disconnected from the carriage that it may fall downward, the cords being supposed to be fastened to the carriage, its weight acting on the cord will disengage it from the tugs or traces. So in case a horse runs away with a carriage and it is overthrown or the body of the carriage thrown from the fore wheels, the horse will be disengaged from the whiffletree.

We do not claim combining with a whifletree a means of suddenly disengaging the traces therefrom, while a horse connected to it is running; nor do we claim combining with the whiflietree, a means of disconnecting it from t-he carriage under like circumstances, but

What we do claim is-- The arrangement and combination of the movable spring clamp, b, its cast ofi, d, its spring latch, f, and the stationary pin, a, or holder, the whole being applied to each end of the whifHetree and made to operate substantially in manner and for the purpose as specified.

In testimony whereof, we, have hereunto set our signatures this 5th day of May A. D. 1855.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6477452 *Aug 24, 2001Nov 5, 2002U-Haul International, Inc.Vehicle service status tracking system and method
Cooperative ClassificationB62C11/00