US976348A - Pitchfork attachment. - Google Patents

Description

0. A. DUPREY.

} PITGHFORK ATTACHMENT.

PatentedNov. 22, 1910.

' APPLICATION FILED DEC. 8, 1909.

CHARLES A. DUPREY, OF MOUNT CLEMENS, MICHIGAN.

PITCHFORK ATTACHMENT.

Specification of Letters Patent.

Patented Nov. 22, ieio.

Application filed December a, 1909. Serial No. 531,979.

To all whom itmay concern:

Be it known that I, CHARLES A. DUPREY, a citizen of the United States of America, residing at Mount Clemens, in the county of Macomb and State of Michigan, have invented certain new and useful Improvements in Pitchfork Attachments, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to an attachment for an ordinary field or stable fork adapted to serve as a fulcrum frame.

The invention consists in the matters hereinafter set forth and more particularly pointed out in the appended claims.

In the drawings, Figure 1 is a view in perspective of a fork equipped with an attachment that embodies the invention; Fig. 2 is a View in side elevation of the fork and adjustment in operative position; and Fig. 3 is a view showing a modification of a fastelling arin.

Referring to the drawings, a fulcrum plate 1 bent throughout its length to form an angle is secured behind the heel of a fork 2 of standard construction by a pair of oppositely disposed, substantially triangular frames, each preferably made of a single spring metal rod. An off-set 3 in each frame is held in the angle of the fulcrum plate by clips 4 of suitable design embracing portions of the frame adjacent the extension. An arm 5 from the outer end of the extension has a hook 6 at its outer end adapted to embrace a tine of the fork. A brace 7 having an arm 8 extending at right angles from the off-set 3 is folded into a flat eyelet 9 which is turned back on the brace 7 in the plane thereof and is so disposed as to bear against the side of the handle 10 of the fork, the loops of each frame being held in place by a transverse bolt 11 passing therethrough which forms a fulcrum for the handle 10, and the bends 12 of the loops being inturned to partially embrace the handle 10 when the nut of the bolt 11 is tightened. Beyond the bend 12 each brace is extended as a strut 13 or a side of the triangle frame to the member 5, around which it is hooked. By this form of construction, a very light and efficient fulcrum is obtained for the fork which may be readily detached by loosening the nut of the single bolt and unhooking the frames from the fork tines.

If preferred the ends of each of the members 5 may be bent into a spiral coil 14: whose axis is transverse to the arms and is adapted to slip over the outer tine of the fork as indicated in Fig. 3, the end coil 15 being spread to embrace an inner tine 16 and thereby prevent the arm from sliding out of place.

Obviously, changes in details of construction may be made without departing from the spirit of the invention and I do not care to limit myself to any particular form or arrangement of parts.

hat I claim as my invention is 1. The combination with a fork of a fulcrum plate bent at an angle throughout its length, a pair of oppositely disposed, substantially triangular frames each provided with a lateral offset at one apex secured in the angle of the plate and formed at a second apex to interlock with the fork tines, and at the third apex to partly embrace the handle of the fork, and a fastening member adapted to hold the frai'nes in engagement with the fork handle.

2. The combination with a fork of a fulcrum plate bent at an angle throughout its length, a pair of oppositely disposed, sub stantially triangular frames each provided with a lateral offset at one apex resting in the angle of the plate and formed at a second apex to interlock with the fork tines and at the third apex to partly embrace the handle of the fork, clips engaging the frames adjacent the oflsets and securing them to the fulcrum plate, and a fastening member adapted to hold the frames in engagement with the fork handle.

3. The combination with a fork of a fulcrum plate bent at an angle throughout its length, a pair of oppositely disposed frames, each consisting of a spring rod closed on itself in the form of a triangle, with a lateral offset at one apex resting in the angle of the plate, a hook at a second apex adapted to interlock with a fork tine and an eyelet at the third apex bent laterally to conform to the handle, clips securing each frame adjacent the ofi'set to the fulcrum plate, and a bolt engaging the eyelets and securing them against the handle.

4. The combination with a fork of a fulcrum plate bent at an angle throughout its length, a pair of oppositely disposed frames, each consisting of a spring rod closed on itself in the form of a triangle, with a lateral offset at one a'p'eX resting in the angle I handle and securing the eyelets against the 16 of the plate, a hook at a second apex adaptsides of the handle.

ed to interlock with a fork tine and an eye- In testimony whereof I affix my signature i let at the third apex, said eyelet being foldin presence of two Witnesses. ed back on the frame in the plane thereof T and bent laterally to conform to the fork CHARLES DUPREX' handle, means securing the frames adjacent WVltnessesz the offset to the fulcrum plate, and a bolt OTTO F. BARTHEL,

passing through the eyelets behind the fork C. R. STIOKNEY.

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