US947088A - Hay-rack and box lifting device. - Google Patents

Description

APPLICATION P ILED MAB. 22, 1909.

Patented Jan. 18,1910.

2 SHEETS-SHEET 1.

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A. W. SORENSON. 4 HAY RACK AND BOX LIFTING DEVICE.

APPLIGATION IIL`ED 11111.22, 1909.

Patented Jan 18,1910.

' 2 SHEETS-SHEET 2.

pNrTED sTATEs PATENT oEEic ANDREW W. SORENSON, HUTCHISON, MINNESOTA.

' HAY-RACK AND BOX LIETING DEVICE.

To all whom it may concern:

Be it known that I, ANDREW W. SoREN- soN, citizen of the United States, residing at Hutchinson, in the county of McLeod and State of Minnesota, have invented certain new and useful Improvements in Hay-Rack and Box Lifting Devices; and I do hereby declare the following` to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to provide a simple and efficient device for lifting hay racks and wagon boxes from their `ruiming gears, and to this end, it consists of the novel devices and combination of devices hereinafter described and defined vin the claims.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings, Figure 1 is a plan view of the improved lifting device; Fig. 2 is a side elevation of the same, with some parts broken away and with a hay rack shown in position on the lifting parts thereof; Fig. 3 is a longitudinal section taken on the line oog m3 of Fig. 2; Fig. l is a detail view in side elevation showing kone of the detachable sheave hangers applied in working position. Fig. 5 is a front elevation showing a chain connection between a corner post and a lifting bar; and Fig. 6 is a side elevation of the upper end of the post shown in Fig. 5.

The frame work of the device involves four vertical posts 1 preferably constructed of angle iron and tied together at their sides by suitable cross braces 2. rlfhe transversely opposite posts, at their extreme lower ends, are tied together by tie bars 3, over which the wheels of the vehicle may be readily driven. The end portions of these tie bars 3 are preferably further connected to the lower end portions of the posts 1 by short oblique brace bars 4.

The rack 5, or a wagon box, is adapted to be lifted from its running gear by a pair'of transversely extended so-called fioating lifting bars 6 that extend from the one transverse post to the other but are free there-y from. In the end portions of the lifting bars 6, cable guide sheaves 7 are loosely journaled. Sheave supporting brackets 8 are permanently secured to the posts 1 thatr Specification of Letters Patent. y Patented Jau, 1S5 1910. Application filed March 22, 1909.v

Serial No. 484,862.

nently applied, outwardly extending shaft.' ybearings v12 are rigidly secured. In these bearings 12 is rotatively mounted a windlass shaft 13 provided at one end with an operating crank 14. The shaft 13 also carries a ratchet wheel 15, with which a lock dog 16, on one ofthe bearings 12, engages to hold said shaft against movement in one direction, when desired. A pair of lifting cables 17 are attached at one end to the shaft 13.

'Ihese cables, at their extended ends, are

anchored to angular lugs secured to the swinging ends of the lifting bars 6, and the said cables are passed over the guide sheaves 11 and under the guide sheaves 7.

"When a wagon is to be driven into the frame to thereby position its rack or box to be lifted by the device, the detachable brackets 9 are removed from the coperating posts and the adjacent ends of the lifting bars 6 are swung laterally out of the path of travel of the said wagon. Then, when the wagon is properly positioned, the lifting bars are swung back into position under the rack or box and the brackets 9 are again applied to their coperating posts. This being done, the rack or box may be easily lifted by rotation of the windlass shaft 13. Vhen the rack or box is raised to the proper elevation, it may be held by engagement of the lock dog 16 with the ratchet wheel 15 by l the said windlass shaft.

The detachable wheel supportingbrackets 9, instead of having hooked ends engageable with the upper ends of the posts 1, might be. otherwise detachably secured thereto, as for 19 formed in the upper ends of the posts 1.

Such connections, while they serve to variably limit the downward movements of the bars 6 and to support the same in lowered positions even when the cables 17 are given slack, will nevertheless permit free upward movements of the said bars as required in lifting the rack or wagon box.

In actual practice, the device described has been found highly efficient for the purposes had in view, and it has been found that a small boy can in a very few moments, remove a wagon box or rack from its running gear or replace the same thereon.

lVhat I claim is:

l. In a device of the kind described, the combination with a framework having corner posts, of a windlass shaft supported by the corner posts at one side of the frame, sheave supporting brackets applied to said posts, those on one side thereof being detachable, transversely extended lifting bars provided with cable guiding sheaves, and suitably anchored cables passed over said guide sheaves and attached to said windlass shaft, substantially as described.

2. In a device of the kind described, the combination with a suitable framework having corner posts, of a windlass shaft rotatively mounted on one side of said framework, means for locking said windlass shaft against rotation in one direction, sheavc supporting brackets permanently secured to the posts on the same side of said frame, cable supportingbrackets detachably applied to the posts on the other side of said frame, loose transversely extended lifting bars provided with guide sheaves, and suitably anchored cables passed over said guide sheaves and attached to said windlass shaft, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

ANDRElV IV. SORENSON. Witnesses JOHN IvERsEN, JONAS PETERSEN.

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