Farriery – Shoes
Patent
1988-03-30
1989-11-07
Swiatek, Robert P.
Farriery
Shoes
168 14, 168 28, A01L 500
Patent
active
048785415
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a horseshoe, especially for trotting horses, notably for the hooves on their forelegs. Horseshoes for this purpose should provide the hooves with the necessary wear protection and should, moreover, have as low a weight as possible, and they should also be extensively pleasant in use for the horses. It is to be noted that the shoes previously developed for the purpose have not been appropriate in all these respects, especially not as far as low weight and accounting for the physiology of the hoof are concerned. The hooves on the forelegs of trotting horses are subject to considerably larger impact than when in the natural condition, and it is well known that top-trained trooting horses are only operative during a very few years, as they develop a decreased mobility of the hoof joints during this period of time.
It has been customary to shoe horse hooves with iron shoes, which extend curved along the rim of the hoof, where the natural wear is at its greatest ,and hereby also the central and rear soft parts are taken into account, as these parts are generally elevated from the ground by positioning the shoe along the rim of the hoof. The concerned soft parts are primarily constituted by a central, longitudinal, backwardly projecting pad named the "frog" which is of increasing width towards the rear, and a pair of cartilage areas on both sides of this, named the "collateral cartilage", which is thus situated at the rear half of the hoof between the rearwardly open rim portion of the hoof and the sides of the "frog".
In connection with specially developed shoes for trotting horses it has been natural still to protect both the hoof rim and the pad or "frog", while the collateral cartilage areas have needed no special protection since they will already be situated above the ground when the hoof rim and the frog are covered with a shoe of appreciable thickness. Therefore, such a special shoe extends arched along the front half of the hoof rim, unto which it is fastened by studs, and therefrom inwards to a central area from which a plate shaped area extends rearwards for covering said pad or "frog". The collateral cartilage areas on both sides of the front end of the frog are hereby left uncovered in an immediately seemingly acceptable manner, whereby the iron shoe need not extend over these areas, which entails a desiredly reduced weight of the shoe.
The said rearwardly projecting plate area which covers the frog cannot be fastened to the hoof, as only the front half of the hoof may be made use of without risk for receiving studs, and therefore a sturdy, transverse middle portion is used to stabilize the backwardly projecting portion. The contour of such a shoe is like a mushroom, through with a central hole in the foremost, almost semi-circular part.
In a known, appropriate method of mounting such shoes a slightly resilient intermediate layer is interposed between the shoe and the hoof, e.g. a leather plate, which is embodied fully covering the entire underside of the hoof. Hereby the collateral cartilage areas are covered, such that they are protected in a gentle manner against tearing from particles on the trotting track, and it is furthermore obtained that the frog area is supported on a softer surface that the hard iron surface of the rearwardly projecting part of the shoe.
A shoe is also known which is adapted to the purpose in shape of a quite thick plate of resilient plastic being shaped nearly in full relative the underside of the hoof, with the plate being embodied with lateral, strongly downwardly projecting ribs for achieving a good set-off against the ground. These shoes are provided with a relatively small central opening, which reduces the weight of the shoe slightly, while they end at the rear along a straight transverse line situated in front of the rear end of the frog of the hoof. In spite of their being used extensively, shoes of such a design may be called a temporary curiosity, inasfar as they do give the hoof an excellent groud gr
REFERENCES:
patent: 503848 (1893-08-01), Hallanan
patent: 684935 (1901-10-01), Hirsch
patent: 710999 (1902-10-01), Powers
patent: 903043 (1908-11-01), Barber
patent: 2191834 (1940-02-01), Slack
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