US152672A - Improvement in hay-fork pulleys - Google Patents

Improvement in hay-fork pulleys Download PDF

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US152672A
US152672A US152672DA US152672A US 152672 A US152672 A US 152672A US 152672D A US152672D A US 152672DA US 152672 A US152672 A US 152672A
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fork
hay
pulleys
pulley
improvement
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45225—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
    • Y10T24/45969—Hook-shaped projection member passing through cavity

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  • My invention relates to the fork-pulleys used with stackers and hoister-ropes in handling hay by means of horse hay-forks and it consists in combining with the pulley a device for attaching the fork to the pulley, said device being in the form of a coil or spiral, or an equivalent shape, which shall admit readily ofthe attaching and detaching of the device, and at the same time prevent accidental separation of the fork from the pulley.
  • the common method of attaching the fork to its pulley has been by simply tying the two together by ropes or cords. The disadvantages of such a connection are obvious.
  • a represents the wheel of the pulley, and b the casing; c, my improved device for attaching the fork to the pulley.
  • the wheel may be of either wood or metal, as is desirable.
  • the casing is made from wrought-iron. From the center of the casing projects said device c, which, in the drawing, is represented as coiled or spiral; but it is evident another form may be adopted, provided the end to be attained lis kept in view,'namely, such a construction of this attaching device that the fork, when once passed within the device, shall not be liable, either 'when weighted or slack, to escape from the coil.
  • the ring of the upper portion of a hayfork is shown at el.
  • the ring ⁇ of the fork is passed within the coil in the saine manner and by the same motions that a key would be placed upon the usual split rin g-namely, by passin g it around the spiral.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)

Description

UNITED STATES PATENT EFICE.
AARON J. NELLIS, OF PITTSBURG, PENNSYLVANIA.
,IMPROVEMENT IN HAV-FORK PULLEVS.
Specification forming part of Letters Patent No. 152,672, dated June 30, 1874; application filed` May 16, 1874.
To all 'whom it may concern:
Beit known that I, AARON J. NELLIs, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Hay-ForkPulleys; and I do hereby declare the following to be a full, clear, and exact description thereof, ref` erence being had to the accompanying drawing forming a part of this specitication, and illustrating my invention.
My invention relates to the fork-pulleys used with stackers and hoister-ropes in handling hay by means of horse hay-forks and it consists in combining with the pulley a device for attaching the fork to the pulley, said device being in the form of a coil or spiral, or an equivalent shape, which shall admit readily ofthe attaching and detaching of the device, and at the same time prevent accidental separation of the fork from the pulley. Heretofore the common method of attaching the fork to its pulley has been by simply tying the two together by ropes or cords. The disadvantages of such a connection are obvious.
In the drawing, a represents the wheel of the pulley, and b the casing; c, my improved device for attaching the fork to the pulley. The wheel may be of either wood or metal, as is desirable. Preferably the casing is made from wrought-iron. From the center of the casing projects said device c, which, in the drawing, is represented as coiled or spiral; but it is evident another form may be adopted, provided the end to be attained lis kept in view,'namely, such a construction of this attaching device that the fork, when once passed within the device, shall not be liable, either 'when weighted or slack, to escape from the coil. The ring of the upper portion of a hayfork is shown at el.
When it is desired to attach the fork to the pulley, the ring` of the fork is passed within the coil in the saine manner and by the same motions that a key would be placed upon the usual split rin g-namely, by passin g it around the spiral.
It is evident, from the coiled shape of the attaching device, that the ring of the fork is not liable to escape from within the circle, no matter what position the fork may occupy.
The advantages of my invention-namely, the providing an attaching device connected to the pulleyare that, first, the use of cords and other separate devices for tying the fork is avoided; the liability of the fork and pulley to work loose is also avoided; the two are readily connected and disconnected when it is desired to use them, and it is impossible for the fork to become disconnected whatever position it may occupy, in addition to which the connection between the pulley and fork is a loose connection, which enables the fork to be moved readily in any direction, and to take any position in relation to its ropes and pulleys that is required by its location.
Having thus described my invention, I claim- A horse-hay-fork pulley having the housin gaand connecting device c, for attaching the fork, substantially as specified.
In testimony whereof I, the said AARON J. NELLls, have hereunto set my hand. v
AARON J. NELLIS. llfitnesses Louis HAGER, JAMEs I. KAY.
US152672D Improvement in hay-fork pulleys Expired - Lifetime US152672A (en)

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