" G. A; STEVENS. V.
No. 375,214. Patented Dec. 20, 1887.
WITNESSES INVBNTOR $62.65;;
l UNITED STATES PATENT OFFICE.
GEORGE A. STEVENS, OF HARTSVILLE, MASSACHUSETTS.
SPECIFICATION forming part of Letters Patent No. 375,214, dated December 20, 188'].
Application filed ()ctober 21, 1887. Serial No. 252,972. (No model.)
To alZ whom it may concern.-
Be it known that I, GEORGE A. STEvENs, of Hartsville, in the county of Berkshire and I State of Massachusetts, have invented a new and Improved Shoe for Sleigh-Runners, ofwhich the following is a full, clear, and exact description.
This invention relates to that class of shoes for sleigh-runners in which a dovetailed groove is provided in its inner face for receiving and retaining the bolt for securing the shoe to the runner, the object whereof being to secure easy entrance of said bolt in such groove and a smooth and even surface thereof for movementof the bolt-head therein; and it consists of a formation of the groove and the combination therewith of abushing of suitable relative shape, all substantially as will hereinafter more fully appear, and be set forth in the claims.
Reference is to be had to the accompanying drawings, forming a part of this specification, in which similarletters of reference indicate corresponding parts in all the figures.
Figure 1 is a perspective view of a portion of a sleigh-runner, partially in section, and of the shoe applied thereto, embracing the securing features of the present invention.
' Fig. 2 is a crcss'section of same on line 00 x,
Fig. 1; and Fig. 3 is a perspective view of the dovetailed bushing or socket detached.
In constructing the sleigh-shoe under the present invention I first form a supplemental socket or bushing-casing, A, of tin, sheet-iron, brass,or other suitable metal or material, with a base or bottom,a, from the edges of which side leaves,b, are provided extending upwardly and inwardly for the greater portion of the length of the base, having an opening, d, between their edges (1 of less width than at a plane nearer the base a, and having at one portion, as at the end f of its length, the side Walls or leaves extending perpendicular to the base, or with as great a distance between the upper edges of said side walls at said portion as between them at their place of joining the base, as plainly seen in Figs. 1 and 3; and this bushing may be of one piece of sheet metal bent into substantially the form described, or it may be otherwise formed. The sleigh-shoe D is then cast of the form desired about and upon the bushing A in a manner to leave the space within same open and unobstructed, and preferably with the upper edges of the side walls, 12 b, flush with inner face of the shoe, a suitable flask and core being used as obvi ous in the art of molding.
The shoe provided with the bushed groove, as described, is secured to the runner B by first placing the head h of the securing-bolt 0 within the enlarged portion f of the groove, then sliding it along in the dovetailed portion thereof until it reaches the proper position on the shoe relative to the bolt-hole in runner, where, when passed through such hole, it is held by the nut Z.
The molding of a sleigh-shoe with the previously-formed socket, as described, is a most economical, simple, practical, and effective method of securing a shoe with socket of the form described, having smooth and even walls, and such as will be continuously maintained, the advantages of which are apparent without further mention.
Having thus fully described my invention, I claim as new and desire to secure by Letters Patent 1. As a new article of manufacture, a bushing or-casing comprising a base, a, and inner side walls, b b, which for a portion of their length incline inwardly with a diminished space between their outer edges, and for another portion of their length are so extended that the space between their outer edges is as great as the space between them at the plane of the base, substantially as and for the purpose described.
2. As a new article of manufacture. a bush ing or casing comprising a base, a, and inner side walls, b I), which for a portion of their length incline inwardly with a diminished space between their outer edges, and for an other portion of their length are so extended that the space between their outer edges is as great as the space between them at the plane of the base, all integrally formed of a single sheet of metal, substantially as and for the purpose described.
3. As a new article of manufacture, a sleighshoe cast upon and about a bushing or casing comprising a base, a, and inner side walls, I) b, which for a portion of their length incline inwardly with a diminished space between their outer edges, and for another portion of their length are so extended that the space between their outer edges is as great as the space be tween them at the plane of the base, substantially as and for the purpose described.
4. As a new article of manufacture, a sleighshoe having a dovetail groove extending from astraight walled socket,and having a wroughtmetal bushing secured in said groove and socket in the process of casting, substantially as set forth.
5. The combination, with a sleigh-shoehaving adovetail groove extending from a straight walled socket, of a wrought-metal bushing secured in said shoe in the process of casting, substantially as set forth.
6. The combination, with a sleigh-runner, of a cast shoe provided with a longitudinallydovetailed grooved bushing having its contracted opening at the inner face of said shoe, said shoe having an enlarged opening leading from its face to communicate with said grooveopening, and a bolt passing through said runner provided with a head lying in said dovetailed groove, substantially as described.
GEORGE A. STEVENS.
O. H. BOOTH, CHARLES R. BREWER,