US 1380705 A
Description (OCR text may contain errors)
E. A. CONNER.
ANTISLIPPING SHOE FOR HORSES.
APPLICATION FILED NOV-21 I919. 1,38U,705 PatentedJune 7, 1921.
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INC., A CORPORATION OF NEW YORK.
ANTISLIPPING SHOE FOR HORSES.
Specification of Letters Patent.
Patented June '7, 1921.
Application filed November 21, 1919.' Serial No. 339,580.
To all whom it may concern:
Be it known that I, EDWARD A. CoNNER, a citizen of the United States, residing at Bridgeport, in the State of Connecticut, have invented certain new and useful Imrovements in Antislipping Shoes for orses, of which the following, taken in connection with the accompanying drawing, 1s a specification.
The object of my invention is to provide a strong and simple strap buckle of such construction that the locking operation will be characterized by a take-up action which will serve to tighten the strap. A further object is to provide such a buckle that will not cut or bruise the strap to be tightened and that can be used if desired with a plain strap having no perforations or peculiarities of construction. A still further object is to rovide a buckle which, in addition to the oregoing characteristics, may be readily manipulated although clogged with snow, ice, mud or similar matter.
Referring to the drawings: Figure l is a view in perspective of my buckle in conjunction with a well known type of antislipping over-shoe for horses; Fig. 2 is a longitudinal section in elevation showing the buckle in unlocked position in conjunc-' tion with attached straps; Fig. 3 is a longitudinal section in elevation showing the buckle in locked position in conjunction with attached straps; Fig. 4 is a,detached top view of the base plate of the buckle; Fig. 5 is a detached top view of the locking member thereof, and Fig. 6 is a longitudinal section in elevation of a modified form of my buckle. 1
Referring to Figs. 1 to 5 inclusive, on a base plate 1 are located, approximately midway between ends thereo suitable means for mounting a cam which may consist, for
example, of two .up-standing brackets 2-2,.
one on each lateral edge of thebase plate.
One end of the base p ate is adapted to be attached to an anchorage by means of the slot 3 and the other end is adapted to be connected with an end of a looped strap, preferably by means of another slot 4.
The locking member, which is in effect a bell crank or angle lever, consists of a cam 5 and a cam lever 6. The cam is provided with suitable means whereby it is adapted to be pivotally mounted between the brackets, the said means as I provide them consisting of the trunnions 7-7. The
trunnions turn in the bearing 8 8 and their axis of rotation constitutes an axis on which the cam may oscillate. The radiusof the cam, that is the distance from the axis to the face 9 of the cam is less than the perpendicular distance from the axis to the base plate, clearance between the base plate and the cam face being necessary as hereinafter further described.
The angle which the lever 6 makes with the radial plane of the cam is such that the cam may be oscillated in an arc intersecting the perpendicular plane from the axis to the base plate and is preferably slightly in excess of 90 degrees. A further requirement that should be met in determining the degree of the angle is that when the cam is thrown into the position shown in Figs. 1 and 3, which is the locked position, the plane of the cam will be in a plane slightly oblique to the perpendicular plane hereinbefore referred to, and the cam lever will have reached its maximum de ression. In a buckle compris ing parts having the relative shapes and proportions of those shown in the drawing, the angle should slightly exceed a right angle. It-should be noted, however, that the essential feature is that the angle should be merely such as to permit the parts of the locking member to be so disposed as to fulfilthe requirements above described, and that provided these requirements are fulfilled, it is immaterial whether the angle be acute or obtuse. r
The cam lever is preferably provided at itsfree end with a trans verse proper dimensions-to" ermit a strap to be passed therethrough. prefer that the cam lever should also be bent transversely of it self at some point intermediate its ends, whereby the free end will be slightly ele- 'vated as shown in Fig. 3 where the locked member is-shown in locked position, the elevated end of the lever thus being easil grasped by the fingers.
To illustrate the manner in which my buckle is applied, I have shown it in Fig. 1 in conjunction with an anti-slipping overshoe for horses, anti-slipping over-shoes for horses being appliances of such characteristics that very small differences in tautness;
make relatively great diiferences in correct ness or incorrectness of adjustment,
Referring then to Flg. 1, a tension memslot 9 of ber 10 is connected to the base plate, preferably by means of a flexible member 11 consisting of stra another strap 12, one end of which is anc iored to the slot 4: in the base plate being looped through the tension member 13 and is then carried back to the buckle. The locking member being in open position as shown in Fig. 2, that is, the cam lever 6 having been swung so that the plane of the cam is on the side of the perpendicular plane referred to, opposite to the side of that plane which the cam occupies in closed position, the strap is passed between the cam and the base plate and drawn as tightly as is practicable by a direct pull.
The cam lever is then swung to the locked position as shown in Fig. 3. if preferred, the strap may after having been passed b tween the cam and the base plate, be passed through the slot in the end of the lever and after bein drawn tight both strap and lever may %e swung together with the lever to locked position. The thickness of the strap should be greater than the clearance between the cam face and the base plate, so it will be. seen that whether or not the strap is passed through the slot 1n the lever before locking, the strap will, as the lever is thrown over to locked position, be advanced along the base )late a distance determined by that are in t e angular movement of the cam during which the cam com resses'the strap against the base plate. e len h of the are mentioned may be considera ly increased if the base plate be bent upwardly as at 14. The compression of the strap wil, it is seen, be at its maximum when the cam is in the perpendicular plane hereinbefore mentioned, becomin somewhat less as the cam reaches its 100 ting position. Tension on the strap when the cam is in its latter position therefore tends to increase the compression with a consequent increased resistance to the withdrawal of the strap as the cam moves toward a position in the said perpendicular i lane.
-In the modi ed form of buckle shown in i Fig. 6, I employ a base plate 15 similar to the. base plate 1, except that in the modified form I dispense with the slot 4, as the buckle may be used without a looped strap if desired. lln this form, for the looped strap 12, is substituted the strap 16 adapted for a direct pull.
It will be apparent from a consideration of the principle of the invention that the same may be embodied in a variety of forms, all of which are intended to be included in the following claims:
1. In an antisslip-p-ing shoe tread portion rovided with two free ends adapted to be awn toward each other over the front of the hoof, one of said ends being provided with an eye, a strap buckle comprising a base plate provided at each end for horses, a
a asses/es with a strap anchorage, flexible connection. between one of said anchorages and one of said free ends, a cam mounted on supports extending from said base plate, said cam being adapted to rotate on an axis parallel with said base plate and transversely thereof, a cam lever provided at its free ends with a stra aperture, the radius of the cam being less t an the perpendicular from said axis to said base plate, and the angle formed by the lever of the cam being such as to permit said cam to be oscillated in an arc intersecting the said perpendicular, a strap anchored to the other of said anchorages and rove through an eye inthe other of said free ends, adapted to pass freely beneath said cam when the said lever is in elevated position and to be compressed between said cam and said base plate when the lever is in depressed position.
2. In an anti-slipping shoe for horses having a tread portion provided with two terminals adapted to be drawn toward each other over the front of the hoof, a buckle connected end to end with one of said terminals, a flexible member connected to the opposite end of said buckle adapted to be rove through an eye in the other of said terminals, said buckle comprising a base plate and a bell crank lever havin a short arm and a long arm disposed it respect to each other at an obtuse angle, said lever being pivotall mounted over said plate and transversely t ereof and at such an eleva= tion therefrom as to leave clearance between the free end of said short arm and said plate, the amount of said clearance being such as to cause said flexible member to be compressed-between said short arm and said plate when the long arm is depressed and the said flexible member is passed between the said short arm and the said plate.
3. In an anti-slipping shoe for horses having a tread portion provided with two termmals adapted to be drawn toward eachv other over the front of the hoof, a buckle connected end to end with one of said terminals, said buckle com rising a base plate and a bell crank lever aving a short arm and a long arm dis osed at an obtuse angle with respect to eac other, said lever bein pivotally mounted over said plate an transversely thereof and at such an elevation from said plate as to leave clearance between the free end of said short arm and said plate, said lon arm being provided with an eye at its ree end and a flexible member connected to the oppositeend of said buckle and adapted to be rove through an eye in the other of said terminals, thence between sald short arm and said base plate and thence through said eye in said long terminals adapted to be drawn toward each other over the front of the hoof, a buckle comprising a base plate and a bell crank lever having a short arm and a long arm disposed at an obtuse angle with respect to each other, said bell crank lever being pivotally mounted over said plate and transversely thereof and at such an elevation from said plate as to leave clearance be- 10 tween the free end of said short arm and.
the said plate, said long arm being provided at its free end with an eye whereby a strap having connection with the other of said i terminals may be rove through the clearance space beneath said. short arm and thence 15 through said eye.
In testimony whereof, l have signed this specification.
EDWARD A. comma