US2420594A - Cable anchor for winches - Google Patents

Description

May 13, 1947. M. M. HALL 2,420,594

CABLE ANCHOR FOR WINCHES Filed Nov. 15, 1945 INVENTOR. BY t' 1. Eva/a4 MW, $15K 71% Patented May 13, 1947 CABLE ANCHOR FOR WINCHES Mark Manley Hall, Prescott, Aria, assignor of one-third to Delmar F. Reeves, Phoenix,

Aria.

Application November 1945, semi! No. 628,852

The present invention relates broadly to winches and more particularly to improved means for anchoring one end of a cable to'the winch.

It has heretofore been the practice when fastening one end of a cable to the winch to provide a series of holes in the flange of the winch through which thescable is woven or threaded back and forth. This threading or weaving causes kinks in the cable resulting in frequent breakage under strain or overload.

It is an important object of the invention, therefore, to provide means for anchoring one end of the cable to the winch in a manner to obviate kinking thereof with the resultant breakage when the cable is placed under strain.

Another object of the invention is to provide cable clamping means in the form of a pin receivable in one flange of the winch, said pin being formed with an elongated opening adjacent one end thereof for receiving the end of the cable, and a nut on the other end of the pin whereby when the pin is drawn up by the nut the cable will be securely clamped between the inner end of the opening and the inner face ofthe flange.

It further object of the invention is to provide a cable anchoring member for winches wherein the elongated slot or opening is serrated or burred to aid in providing a firmer grip on the cable as the cable is drawn tightly against the inner face of the winch flange.

A still further object of the invention is to provide a cable anchoring member of the above character wherein the nut which is threadedly secured on the outer end of the pin is counterbored so that the end of said pin will notprotrude beyond the outer face of the nut when tightened thereby.

The above and other objects of the invention will in part be obvious and will be hereinafter more fully pointed out.

In the drawings:

Figure l is an elevational view, partly in section, of a standard type winch with the cable anchoring member attached to the flange thereof.

Figure 2 is an enlarged sectional view of the cable anchoring member, with the parts in the position assumed when anchoring the cable to thewinch.

Figure 3 is an elevational view in modified form of pin.

Figure 4 is a partial sectional view of a modifled form of the invention in which a knurled weidge is used in conjunction with the pin and nu Referring to the drawing for a more detailed 2 Claims. (Cl. 242117) description thereof, a winch of standard construction is generally designated by the reference numeral 5 and is shown to include a cylindrical shaped drum 6 on which the cable I is wound. The winch 5 further includes flanges} and 9 suitably secured to each end of the drum 6, said flanges being of greater diameter than the drum 6. Each flange is counterbored as indicated at In, and as is to be understood, the counterbored flanges 8 and 9 and drum 6 are of standard which the cable end is threaded or woven. This threading or weaving of the cable end served to lock the cable and but has not proven satisfactory in that kinks were formed in the cable resulting in frequent breakage when placed under strain or overload. In accordance with the present invention the end H of the cable is securely anchored to the winch without liability of the cable kinking and breaking. This improved cable anchoring means includes a cylindrical pin It of substantially uniform diameter which slidably fits an opening 13 formed in the flange t adjacent the outer periphery thereof. The pin projects from the inner and outer faces of the flange, The outer end of the pin is threaded as indicated at M while the inner end is formed with an elongated opening IS. The pin is of considerable greater diameter than the cable to be clamped and the opening has a width which permits the free insertion oi the end of the cable therein. The threaded end l4 carries a nut it, which nut is counterbored as indicated at IT. The pin it and nut l6 are designed so that the end of the pin l2 will not protrude beyond the outer face I! of the nut l6. This is accomplished by limiting the number of threads I on the pin and forming the counterbore I! in the nut IS. The

counterbore at the inner end of the nut l6 provides an annular abutment face l6" which abuts against the outer face of the flange 8. Thi permits of the threaded P rtion of the pin being disposed on the outside of the flange and provides for a firm but slidable mounting of the pin in the opening in the flange.

In the use of the device for anchoring the cable, the pin minus the nut IE will be inserted through the flange opening I I in such position that the elongated, opening I! will be Projected beyond the inner face I! of the flange 8. The end ll of the cable I is then inserted upwardly through the opening II to substantially the position shown in Figure 1. The nut I! is then tightened on the threads H, which action will draw the pin l2 outwardly of the flange 8 until the cable becomes iirmly gripped between the inner face 19 of the flange and the wall 20 of the elongated opening l5. As more particularly shown in Figure 2, when the cable is firmly anchored the nut I will bear against the outer face of the flange 8 and be completely confined within the counterbore 10 thereof. The nut I6 is confined within the flange 8 to prevent injury to the operator of the winch or the catching of his clothes thereon. Thus, it will be seen that by the new and improved anchoring means, one'end of the cable II will be firmly clamped so that said cable can be wound on the drum 8 in the normal manner. Through the use of the improved cable anchoring means, kinking or breakage is obviated.

In Figure 3 of the drawing there is shown a modified form of pin in .which the elongated opening l has one wall thereof formedv with serrations 2]. These serrations will bite into the cable when the nut is threaded thereon in the manne previously described. In some instances, where the cableis subjected to severe strain and overload, it may be desired to form the opening of the pin with the serrations'in order that a firmer bite of the cable can be obtained.

In the modified form of the invention shown in Figure 4, of the drawing, there is employed a tapered wedge 22, one face of which is knurled or serrated as indicated at 23. In this form of the invention the wedge 22 is inserted in the elongated opening 15 simultaneously with the insention of cable end I I, and upon tightening the nut IS, the smooth face of the wedge will engage the inner face of the flange 8, causing the serrated area 23 to bite into and g ip cable end II;

In all forms of the invention, a cotter key 24 is provided for locking the nut is on the pin l2 after the cable has been securely anchored. Of

course, use of the cotter key is optional;

It is to be clearly understood that various changes in the details and construction and arrangement of parts may be made without departing from the scope of the invention as set forth in the appended claims.

Iclaim:

1. A cable end anchoring means for winches having a drum on which the cable is wound and a flange at each end thereof comprising, a cylindrical 'cable clamping pin of substantially uniform diameter slidably fitting an opening in ,one of said flanges and projecting from the inner and outer faces of said flange, said pin being of diameter considerably greater than the cable to be clamped and having an opening diametrically therethrough adjacent the inner end adapt-' ed to receive the end of the cable, said opening being elongated axially of said pin, the outer projecting end of said pin being threaded and a nut engaging said threaded end and adapted to engage the outer face of the flange for drawing said pin outwardly of the flange whereby to clamp the cable end between the inner face of the flange and the inner end of the opening through said pm.

2. A cable end anchoring means for winches having a drum on which the cable is wound and a flange at each end thereof comprising, a cylindrical cable clamping pin of substantially uniform diameter slidably fitting an opening in one of said flanges and projecting from the inner and outer faces of said flange, said pin being of diameter considerably greater than the cable to be clamped, and having an opening diametrically therethroughadjacent the inner end adapted to receive the end of the cable, said opening being elongated axially of said pin, the outer projecting end of said pin being threaded and a nut engaging said threaded end, said nut having a counterbore in its inner end forming an annular abutment face adapted to engage the outer face of the flange for drawing said pin outwardly of the flange whereby to clamp the cable end between the inner face of the flange and the inner end of the opening through said pin.

MARK MANLEY HALL.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,894,432 Watson Jan. 17, 1933 2,196,320 Milne Apr. 9, 1940 1,273,922 Prattinger July 30, 1918 2,062,882 Heinrich Dec. 1, 1936 930,162 Dulinsky Aug. 3, 1909 1,796,409 Schuler Mar. 17, 1931

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