US1064090A - Antislipping attachment for horseshoes. - Google Patents

Description

W. G. ROBERTSON, J11. ANTISLIPPING ATTACHMENT FOR HORSESHOES.

APPLICATION FILED JUNE 11, 1912.

1,064,090, Patented June 10, 1913.

cnLUMBlA PLANOORAPH c0.. WASHINGTON, 0. c.

WILLIAM G. ROBERTSON, JR., OF WASHINGTON, DISTRICT OF COLUMBIA.

ANTISLIPPING ATTACHMENT FOR IIORSESHOES.

Specification of Letters Patent.

Application filed June 11, 1912.

Patented J une 10, 191 3.

Serial No. 702,981.

T 0 all LO/1.07M it may concern Be it known that I, TVVILLTAMI G. Ronnn'rson, Jr, a citizen of the United States, residing at Washington, in the District ol. Cohunbia, have invented certain new and useful Improvements in Antislipping Attachments for Horseshoes, of which the following is a specification.

The object of my invention is to provide an anti-slipping attachment for horscshoes of simple, cheap and practical construction, designed especially for icy road beds and which may be carried by the drivers of the teams and be quickly applied when needed, without the services of a blacksmith.

It relates to that form of anti-slipping attachment in which two bars carrying calks on their outer faces are crossed upon each other and pivotally connected together and are provided with means for connecting them with the horseshoe, and my invent-ion consists in the special construction and arrangement for locking the bars in attached position and for holding them to the upper inner edge of the horseshoe as hereinafter more fully described with reference to the drawing.

Figure 1 is a top plan view of the upper side of a horseshoe next to the horses hoof, showing my anti-slipping attachment applied one of the bolts and its reinforcing backing 7 being in section; Fig. 2 is a bottom plan View of the same parts, showing the face next to the ground; Fig. 3 is a, transverse section, taken on line 3--3 of Fig. 1; Fig. 4; is an inside View of one of the cross bars; Fig. 5 shows details of one of the holding bolts and the key by which it is turned; Fig. 6 is a detail of a modified form of the locking means for the middle of the cross bars; and Fig. 7 is a detail of a modified form of the holding bolt.

In the drawing, A represents a horseshoe and B, B are two crossed bars pivotally connected to each other at or near the middle by a bolt E. The crossed bars B, B have each near each of its ends two holes, the outer one of which is countersunk and receives a headed calk D whose head lies un derneath the horseshoe, as seen in Fig. The other adjacent hole is screw threaded and is adapted to receive a screw bolt C whose concentric head lies normally above the plane of the shoe and engages its inner and upper edge. The head of the bolt is convex on the upper side so as to give a sharp tapering edge all around that readily enters the space between the horses hoof and the shoe on the inner edge 01 the same in all rotary positions of the bolt. Integrally upon each cross bar adjacent its bolt hole there is formed a reinforced backing 1" to hold the head of the bolt safely and firmly over on top oil. the inner edges of the shoe in the slight space between the shoe and the horses boot. The middle portion of the bolt C is screw threaded and is turned into the screw threads ot' the cross bar, but where the bolt protrudes below, it is squared, as seen in Fig. 5, to receive a square socket key K by which the bolt may be turned up or down from its lower end. There is also formed on each cross bar around each of its bolt holes a downwardly projecting guard 7) of circular form. These are cast or forged integrally on the bars and are set away from the holes far enough to receive the end of the key K the wall of whose socket lies between the guard 11 and the squared end of the bolt. This guard protects the lower end of the bolt from wear and prevents the hammering action on stones in the road bed from riveting the lower end of the bolt fast which would prevent it from being turned and would deform it so that it would not enter the socket ot' the turning key. By means of the bolt U as thus described it will be seen that the head of said boll: may be drawn down to any thickness of shoe, whether it be a new one, or worn thin, and thus be made to pinch and hold any attachment on regardless of the condition of wear on the shoe. It will be understood that the reinforcing backing r for the bolt will be of less elevation than the minimum thickness of the shoe.

For adjusting the attachment to the shoe, and adapting it also to shoes of different size, the middle portion of each cross bar is formed with a disk shaped enlargement of considerably greater diameter than the cross section of the bar and these enlargements are formed with a concentric circle of raised teeth or corrugations Z, which corrugations are all a definite and uniform dis tance from the center oil the clamping bolt 1* and which are designed to give a. different angular position to the cross bars in relation to each other and to lock them together to any adjustment. Thus, when the bars it, B" are turned about the center clamping bolt ll) to bring the holding bolts C up against the inner edges of the shoe with their heads overlapping the top side of the shoe as in Fig. 3, then the nut F is tightened on the bolt E which brings the corrugations Z of one bar into mesh and locking engagement with the similar corrugations on the other bar. This, it will be seen, rigidly locks together the two bars in this fixed angular relation to hold my attachment to the shoe. To look the clamping nut F against turning on the bolt and the acci dental loosening of the bars, any suitable lock nut may be employed, as for example, a simple pin 6 may be driven through any one of a series of radial holes in the nut and through a registering transverse hole in the bolt, said pin having its end clenched as shown.

To apply the attachement to a shoe, the bars B, B being loose at their pivot bolt, are collapsed sufficiently to let the bolt heads 0 go inside of the shoe. The bars are then expanded to bring the shanks of bolts 0 against the inner edges of the shoe, as seen in Fig. 3. The bars B, B are then locked in this position through the agency of the cen ter clamping bolt and the corrugations, and then the key K is applied to the lower outer ends a of the holding bolts C and the latter being turned are by their screw threads drawn down individually to a tight bearing of each head upon the upper inside edge of the shoe to make a very secure attachment which is not liable to loosen and come off. As a further safeguard, however, the cross bars B, B may be extended out beyond the edges of the shoe and formed with an upturned flange 7 as seen in dotted lines in Fig. 3, to which flanges may be applied straps s to pass over the horses hoof. I make no claim to such flanges and straps, as I am aware that they are old and well known.

It will be understood that in applying my attachment, it is self-adjusting to its position inside of the shoe, finding its own place, and this also adapts it to shoes of different width and sizes. While this is true within certain limits, I propose to make my attachments in different sizes to provide for the great difference in sizes and shape from a mules shoe to that of a Percheron horse.

In order to give a fine adjustment for the bars B, B in bringing their holding bolts C against the inner edges of the horseshoe, the corrugations Z are set a considerable distance from the center and consequently the middle of each cross bar is considerably enlarged with the corrugations at the outer periphery of the enlargements and concentric to the bolt hole, but I do not confinemyself to corrugations alone as any concentric interlocking means may be employed. Thus, for instance, the enlarged middle portions of the bars may have a concentric series of circular holes as seen at 71, in Fig. 6 adapted to receive a pin or screw. Instead of the holding bolt C, I may also employ an unthreaded bolt C as in Fig. 7, having longitudinal slots in different positions along its length, each adapted to receive a tapering key 0 which will draw down the head of the bolt to suit the thickness of the shoe, such flat key to have its small end bent to prevent withdrawal.

In calling attention to the concentrically headed bolt 0 and its mode of adjustment, I would state that no matter what position of rotary adjustment the bolt is in, the head always has an over-lap above the shoe in all thicknesses of shoe, even if half worn out, and the head gets its bearing against the shoe for any infinitesimal turn of the bolt, as the head projects on all sides of the shank of the bolt and the rotary turning of the bolt does not lose its grip on the upper edge of the shoe, and, furthermore, the lower end of the bolt, to which the key is applied, is of smaller cross section than the hole in the bar so that the bolt is insertible into the bar from the upper side.

I claim:

1. An attachment for horseshoes comprising two pivoted bars with means for look ing them in different angular positions, said bars having holes through their outer ends, bolts arranged in said holes and formed with heads on their upper ends projecting in all directions around their shanks and insertible into the bar from the upper side and adapted to have the heads overlap and engage the shoe in all rotary adjustments, each of said bolts having adjusting means for adjusting its head down to shoes of varying thickness and the head being formed with a sharp tapering edge all around to enter the space between the horseshoe and hoot.

2. An attachment for horseshoes comprising two pivoted bars with means for locking them in diii'erent angular positions, said bars having interiorly screw threaded holes, bolts in said holes, each having a head on its upper end projecting in all directions around the shank and having a screw threaded middle portion and a smaller lower end of angular cross section to receive the socket of a turning tool and the head of the bolt being formed with a sharp tapering edge all around to enter the space between the horseshoe and hoof.

3. An attachment for horseshoes comprising a supporting frame bearing calks and made in two connected bars adjustable in relation to each other, means for locking them to their adjustment and holding means for connecting the bars to the shoe comprising bolts with concentric heads at their upper ends arranged in the outer ends of the bars and formed with tapering edges, said bolts having adjusting means at their lower ends for drawing down their heads to varying thicknesses of shoes.

4. An anti-slipping attachment for horseshoes comprising bars bearing calks With holes beside them, concentrically headed holding bolts insertilole through the holes in the bars from the upper side and screw threaded into the bars and provided with means for turning them from their lower ends, said bars being formed with d0wn- Wardly projecting guards around the lower ends of the bolts and also a reinforced backing for the bolts on the upper side of the bars made of less height than the minimum thickness of shoe.

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

WILLIAM G. ROBERTSON, JR. \Vitnesses:

11:. J. NEALE,

DAVID VOL'F.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

Images