US2370921A

US2370921A - Snubbing device

Info

Publication number: US2370921A
Application number: US508591A
Authority: US
Inventors: Sharpe Clyde Lemuel
Original assignee: Individual
Current assignee: Individual
Priority date: 1942-11-02
Filing date: 1943-11-01
Publication date: 1945-03-06
Anticipated expiration: 1962-03-06

Description

March 6, 1945. c; L, SHARPE SNUBBING' DEVICE Filed Nov. 1, 1943 7 1M E El m INVENTDQ Clyde Lemuel Sharpe ATTORNEY Patented Mar. 6, 1945 SNUBBING DEVICE Clyde Lemuel Sharpe, Shouldice, Alberta, Canada Application November 1, 1943, Serial No. 508,591

' In Canada November 2, 1942 10 Claims.

This invention relates to a device for snubbing I animals, and particularly cows, while they. are

being milked. 7

An object of the present invention is the provision of a device for preventing cows from kicking the pail or the milker when they are being milked.

Another object is the provision of a device for accomplishing this result without interfering with the ordinary movements of the cow while it is being milked.

A further object is the provision of a device adapted t be secured to the hind leg of a cow which will permit ordinary movement of the leg and yet will prevent the cow from kicking with that leg.

A still further object is the provision of a portable device of the nature described which may be moved from stall to stall.

Yet another object is the provision of a snubbing device of simple and inexpensive construction.

With these and other objects in View, the present invention consists essentially of a snubbing device comprising a rotatably mounted drum, a rope secured to and adapted to be wound around the drum, resilient means for normally holding the drum in a position with the rope therearound, said drum rotating as the rope is evenly pulled out and being returned to its normal position by the resilient means when the pull on the rope ceases, and means associated with the drum for preventing the latter from rotating when the rope is subjected to a sharp pull, as more fully described and illustrated by way of example in the following specification and the accompanying drawing, in which Figure 1 is a plan view of the snubbing device,

Figure 2 is a side elevation thereof, and

Figure 3 is an elevation of the opposite side of the device.

Referring more particularly to the drawing, I0 is a drum rotatably mounted on a shaft I I which is supported in any suitable manner. This shaft is displaceable in its supporting means. In th s example, the supporting means consists of spaced arms 12 and I3 projecting outwardly from a bracket M which may be removably or permanently mounted on any suitable support, such as a wall or stand.

The shaft H is pivotally mounted at one end on the arm l2 by means of a pivot l5, and its opposite end extends freely through an elongated slot l8 formed in the arm I3. Means is provided for normally holding the shaft against. the inner end of the slot l6, that is, the end of the slot nearest the bracket H. A spring I! is provided for this purpose, and one end of said spring isanchored to the bracket while the other end thereof is connected to the free end of the shaft. The outer end of the spring may be connected to an eye-bolt l8 extending freely through the shaft and having a nut 20 threaded on the end thereof. The tension of the spring maybe regulated by turning the nut 20.

A spring 2| may be mounted onthe shaft H between the end of thedrum l0 and the arm l2,

although this is not absolutely necessary.

A compartment 22 is formed within one endof the drum, and a clock spring 23 is mounted in said compartment and surrounds the shaft l l. The inner end of this spring is secured t the shaft at 24 and the other end thereof is fixed to the drum at 25. The spring 23 is normally so loose that it cannot rotate'the drum about the shaft. 1

One or more shoulders 26 radiate from the drum II! at one side thereof in line with but spaced from an obstruction 21 formed on the outer end of the arm l3, which extends outwardly beyond the drum. This obstruction maybe formed by bending the end of the arm at substantially right angles thereto, as'shown.

A rope 28 secured atone end tothe drum Ill, is adapted to be wound around said drum. The

spring 23 forms resilient means forholding the drum in position with the rope therearound. When the drum is in this position, the spring is not under tension.

A hook 30 is slidably mounted on the outer or free end of the rope 28 by means of loops 3|. A loop 32, see Figure 3, is formed on the outer end of the rope.

In use, the spring 23ynormally holds the drum m in a position with the rope 28 wound therearound. When the rope is gently pulled outwardly, the drum rotates on the shaft H against the tension of the spring. The outer end of the rope is placed around the leg of an animal and placed over the hook 3d. The animal may now move its leg back and forth as long as it does it in a gentle manner. When the leg is moved in one direction, it pulls the rope off the drum, rotating the latter against the tension of the spring 23 and when it is moved in the oppositedirection, the spring turns the drum to windthe rope back thereon.

If the animal starts to kick, thereby'pulling the rope sharply, the drum does not rotate fast enough so that the free end of the shaft I l moves outwardly in the slot IB-against the tension of the spring II. This movement causes one of the shoulders 26 to strike the obstruction 21, thus preventing the drum from rotating. This stops the kick before it really gets started. The spring I! then returns the shaft to its normal position so that the drum is free to rotate again unless another kick is attempted. I

While the shaft l I is shown with a pivot at one end, it is to be understood that an arrangement similar to that at its-opposite end may be substituted therefor. In other words, the pivot end of the shaft might extend through an elongated slot in the arm l2 and a spring I! employed for holding said end against the inner end of the slot. In this case, the entire shaftw'ould move outwardly when the animal attempted to kick,

This invention is designed chiefly for use when a cow is being milked. The rope 28 is secured to the hind leg of the cow next to the milker so that the cow cannot kick either the milk pail or the milker. This device is small and light and it may be moved to positions behind different cows so that only one device would be required for an entire herd.

Various modifications may bemade in this in-,

vention without departing from the spirit thereof or the. scope of the claims, and therefore, the exact forms shown are to be taken as illustrative only and not in a limiting sense, audit is desired that only such limitations shall be placed thereon as are disclosed in the prior art or are set forth in the accompanying claims.

What I claim as my invention is:

1. A snubbing device comprising a shaft, a drum rotatably mounted on the shaft, means for,

supporting the shaft, said shaft being displaceable in its supporting means, a rope secured to and adapted to be wound around the drum, resillent-means for normally holding the drum in a position with the rope therearound, said drum rotating as the rope is evenly pulled out and being returned to-its normal position by the resilient means when the pull on the rope ceases, meansi normally holding the shaft in one position, and

means for preventing the drum from rotating when the shaft is displaced by a sharp pull on the rope.

2. A snubbing device .comprising a shaft, a

drum rotatably mounted on the shaft, means for supporting the shaft, said shaft being displaceable in its supporting means, a. rope secured to and adapted to be wound around the drum, resilient means for normally holding the drum in a position with the'rope therearound, said drum rotating as the rope is evenly pulled out and being returned to its normal position by the resilient.

means when the pull on the rope ceases, means normally holding the shaft in one position, an obstruction located adjacentlthe drum and at least one shoulder radiating from the drum in line with the obstruction, whereby a shoulder strikes the obstruction to prevent the drum from rotating f when the shaft is displaced by a sharp pull on the rope.

3. A snubbing device comprising a shaft, a

j drum rotatably mounted on the shaft, means for supporting the shaft, said shaft being displaceable in its supporting means, a rope secured to and adapted to be wound around the drum, resilient means for normally holding the drum in a position with the rope therearound, said drum rotating as the rope is evenly pulled out and being returned to its normal position by the resilient ient means for normally holding the drum in a position with the rope therearound, said drum rotating as the rope is evenly pulled out and being returned toits normal position by the resilient means whenthe pull on the rope ceases, spring means normally holding the shaft in one position,

means for regulating the tension of the spring means, an obstruction located adjacent the drum,

and at least one shoulder radiating from the drum in line with the obstruction, whereby a shoulder strikes the obstruction to prevent the drum from rotating when the shaft is displaced by a sharp pull on the rope.

5. A snubbing device comprising a shaft pivotally supported at one end and movably sup-ported at its opposite end, a drum rotatably mounted on the shaft, a rope secured to and adapted to be Wound around the drum, resilient means for normally holding the drum in a position with the rope therearound, said drumrotating as the rope is evenly pulled out and being returned to its normal positionby'the resilient means when the pull on the rope ceases, means normally holding the shaft in one position, and means for preventing the drum from rotating when the shaft is pivoted by a sharp pull on the rope.

6. A snubbing device comprising a shaft pivot ally supported at one end and movably supported at its opposite end, a drum rotatably mounted on the shaft, a rope secured to and adapted to be wound around the drum, resilient means for normally holding the drum in a position with the rope therearound, said drum rotating as the rope is evenly pulled out and being returned to its normal position by the resilient means when the pull on the rope ceases, means normally holding the shaft in one position, an obstruction located adjacent the drum and at least one. shoulder radiating from the drum in line with the obstruction, whereby a shoulder strikes the obstruction to prevent the drum from rotating when the shaft is pivoted by a sharp pull on the rope.

7. A snubbing device comprising a shaft pivotally supported at one end and movably supported at its opposite end, a drum rotatably mounted on the shaft, a rope secured to and adapted to bewounol around the drum, resilient means for normally holding the drum in a position with the rope therearound, said drum rotating as the rope is evenly pulled out and being returned to its normal position bythe resilient means when the pull on the rope ceases, a spring connected to the free end of the shaft for holding it in one position, and means for preventing the drum from rotating when the, shaft is pivoted against the tension of its spring by a sharp pull on the rope.

'8. A snubbing device comprising a shaft piv.ot

. ing as the rope is evenly pulled and being remeans when the pull on the rope ceases, spring ymeans normally holding the shaft in one positurned to its normal position by the resilient means when the pull on the rope ceases, a spring connected to the free end of the shaft for holding it in one position, means for regulating the tension of said spring, an obstruction located adjacent the drum and at least one shoulder radiating from the drum in line with the obstruction, whereby a shoulder strikes the obstruction to prevent the drum from rotating when the shaft is pivoted against the tension of its spring by a sharp pull on the rope.

9. A snubbing device comprising a rotatably mounted drum, a rope secured to and adapted to be wound around the drum, a clamping arrangement at the outer end of the rope by means of which said rope may be removably secured to the leg of an animal, resilient means for normally holding the drum in a position with the rope therearound, said drum rotating as the rope is evenly pulled out and being returned to its normal position by the resilient means when the pull on the rope ceases, and means associated with the drum for preventing the latter from rotating when the rope is subjected to a sharp pull.

10. A snubbing device comprising a shaft, a drum rotatably mounted on the shaft, a rope secured to and adapted to be wound around the drum, a hook slidably mounted on the rope adjacent its outer end, a loop formed on the outer end of the rope, said loop being adapted to be placed over the hook after the rope end is placed around the leg of an animal, resilient means for normally holding the drum in a position with the rope therearound, said drum rotating as the rope is evenly pulled out and being returned to'its normal position by the resilient means when the pull on the rope ceases, and means associated with the shaft of the drum for preventing the latter fromrotating when the rope is subject to a sharp pull.

' CLYDE LEMUEL SHARPE.