US661592A - Hoisting apparatus. - Google Patents

Description

No. 661,592.y Patented Nov. la, |900.

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{Application led Apr. 13, 1900.!

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No. 665592 f Patented Nov. ls, |900.

- D. SVENSN.

HOISTING APPARATUS.

(Applition ledAApr. 13, 1900.) (No Model.) A 2 Sheets-Sheet 2.

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l UNITED STATES PATENT OFFICE.

DANIEL SVENSON, OF TWIN VALLEY, MINNESOTA.

HOISTING APPARATUS.

SPEQIFIGATION forming part of Letters Patent No. 661,592, dated November 13, 1900.

Application liled April 13, 1900. Serial No. 12.679. (No model.)

To all whom, t may concern:

Be itknown ihatI, DANIEL SVENSON, a citi' Zen of the United States, residing at Twin Valley, i'n the county of Norman and State of Minnesota, have invented certain new and useful Improvements in Hoisting Apparatus; and I do hereby declare the following to bea full, clear, and exact description of the in vention, such as will enable others skilled in the art to which it appertains to make and use the same.

My present invention has for its object to provide an improved oist-ing device especially adapted for use stringing up the carcasses of animals.

To this end the invention consists ofthe novel devices and combinations of devices hereinafter described and defined in the claim.

The invention is illustrated in the accompanying drawings, wherein like characters indicate like part-s throughout the several views.

Figure 1 shows a complete hoisting device in side elevation. Fig. 2 is a View in front elevation showing the upper portion of the hoisting device, the lower portion thereof being broken away; and Fig. 3 is a vertical section approximately on the line 003003 of Fig. 2.

The framework is in the form of a tripod formed by legs 1, the sections of which are united by keeper-bracket 2 and the upper ends of which fit in sockets 3 of a crown or cap 4. These legs are adapted to be ref moved from the crown 4 and the sections thereof to be pulled apart so that the device may be packed in small compass.

A windlass the drum of which is in the form of a shaft 5 is employed to hoist the animal by means of a rope or connection and a suitable gambrel. As shown, this windlass drum or shaft 5 is mounted in suitable bea-1'- ings 6, that are suspended byastrong bracket 7, the upperend of which is secured by a shoe 8 to the crown or cap 4. Each bracket 6 also has a leg 9, which is detachably secured, as shown at 10 in Fig. 3, to the adjacent keeper 2 of the supporting-legs 1. A rope or eXible connection 11, secured at one end to the windlass shaft or drum 5, runs over a guidesheave 12, suitably mounted within the crown or cap 4. At its lower end the rope connection 1l is provided with a gambrel made up of a head 13 and a pair of hooked arms 14. The rope 11 is directly secured to the head 13, and the arms 14 are provided at their inner ends with several perfor-ations 15, through which and the head 13 short nutted bolt 1G is passed to adjustably secure the said arms to the said head. The downward movements of the arms 14 are limited by stops 17 on the head 13.

At one end the windlass shaft ordruin 5 is provided with a large ratchet-wheel 18 and with a hand-crank lil, by the latter of which the windlass may be turned when the load is not very heavy. A retaining-pawl 20, pivoted on one of the bearings 6, cooperates with the ratchet-wheel 18 to prevent unwinding Ymovement of the windlass.

1n order that very heavy loads, such as large animals, may be lifted, I provide alifting-lever of novel construction. This lifting-,lever is indicated by the numeral 21, and at its lower end it is provided with a metal head or extension 22, which is pivoted to a portion 23`of one of the bearings 6 at a point indicated by the short nutted bolt 24. Preferably the lever extension 22 is provided with several perforations 25, with any one of which the bolt 24 may be engaged to vary the leverage of the lever. The lever 21 is also provided with a pawl 26, pivoted to the eX- tension 22 by short nutted bolt 27 and subject to a spring 28, which normally holds the free end of the pawl in engagement with the teeth of the ratchet-wheel 18. The pawl 26 is also preferably provided with several perforations 29, with which the bolt 27 may be engaged to adjustably secu re said pawl to its operatinglever.

It will be noted that the pivot-bolt 24 is located considerably outward from the center of the windlass-shaft 5. This gives the 1ever 21 increased leverage, and, as already indicated, this leverage may be varied in vieT of the perforations 25 in the lever extension 22. Attention is also here called to the fact that when the pawl 26 is raised until the end 30 of the spring 28 is passed outward of a straight line drawn from the other end 31 of the spring 28 and the pivot-bolt 27 the said spring 28 will hold the said pawl in an inoperative position, as would be desired when the windlass is to be operated by the crank 19.

IOO

It will of course be understood that the hooked ends of the gambrel-arms l4'will be hooked into the hocks of the animal which is -to be strung up. This device has been used in practice and is found to be convenient and efficient for Stringing up heavy cattle, as Well as for stx-inging up lighter animals, such as hogs and sheep. The device is, however, adapted for general hoisting purposes.

What I claim, and desire to secure bv Letters Patent of the United States, is as follows: The combination with the crown 4 having the sockets 3, of the legs l fitting said sockets 3, the brackets 7 suspended from said crown 4, the bearings 6, connected to said bracket DANIEL svENsoN.

Witnesses:

E. H.v GUNDERSON, J. L. WoLD.

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