US469937A - Snow-plow - Google Patents

Description

(No Model.) 3 SheetsSheet 1. W. Y. FISHER.

- SNOW PLOW.

No. 469,937 Patented Mar. 1, 1892.

INVENTOR 44 ATTORNEYS.

(No Model.) 3 Sheets-Sheet 2.

W. Y. FISHER.

SNOW PLOW.

No. 469,937. Patented Mar. 1, 1892.

W|TNES$ES INVENTOR: mifmm. 4%,

% ATTORNEYS.

WWQ woawm (No Model.) 3 Shets-Sheef 3. W, Y. FISHER.

SNOW PLOW Patented Mar. 1,' 1892.

INVENTOR:

WITNESSES: 2,350

ATTORNEYS.

' UNITED- STATES PATENT OFFICE.

\VILLIAM Y. FISHER, OF BIG TIMBER, MONTANA.

SNOW-PLOW.

SPECIFICATION forming part of Letters Patent No. 469,937, dated March 1, 1892.

' pplication fil November 2, 1891. Serial No. 410,609. (No model.)

To all whom it may concern: I,

Be it known that I, WILLIAM Y. FISHER, of

Big Timber, in the county of Park, in the exact description.

This invention relates to a snow-plow designed to. operate in advance of the horses which propel the same, the horses beingthus relieved of the impediment presented by deep snow and also of the danger of beinginjured by the crust of ice which is frequently formed on top of snow, and at the same time the horses obtain a firmer foothold on the ground; and the invention consists, essentially, of a push frame or pole, the plow attached to the front end of said frame or pole, and horsehitching devices on the rear end of the frame or pole to accommodate at the rear of the plow the horses for propelling the same, all as hereinafter more fully described, and specifically set forth in the claims.

In the annexed drawings, Figure 1 is a side elevation of a snow-plow embodying my invention, part of one side of the plow being broken away to show its connection with the push frame or pole. Fig. 2 is a plan view of the same, and Fig. 3 is a rear end view of the plow detached from the push frame or pole.

Similar letters of reference indicate corresponding parts.

P represents the snow-plow, which is rigidly mounted on a frame A, preferably of the shape of two stout sleigh-runners united at the rear end by a cross-bar A. This frame is hung on an axle 6, formed with downwardlyextending crank-arms e 'e', to the free end of which are connected either wheels f f, as shown by full lines, or runners, as indicated by dotted lines in Fig. 1 of the drawings. Said wheels from the plow and is connected thereto by means of stout arms I) b, rigidly attached to the front end of the frame or pole and pivotally connected to the frame A. The pole D lies across the top of the rear end of the frame A, and to the under side of the pole isaffixed a shoulder c, by which it bears against the rear end of said frame. To brace the frame A laterally in its connection with the pole D, I attach to the top of the former two rigid guides d (1, bearing on opposite sides of the pole.

To the rear end of the push frame or pole D is pivoted the steering-post which is pro vided on its upper end with a hand-wheel r, by which to govern it in its position. To the foot of this post is connected either a steerin gwheel '5 or a sled-runner, as may be deemed best adapted for the surface upon which it is to run.

T represents a doubletree, which is connected to the rear end portion of the push frame or pole D for hitching thereto the horses which are to propel the snow-plow. I do not, however, limitmyself to the use of the doubletree, inasmuch as the push-frame D may be made of such a form as to permit'of the use of other horse-hitching devices. The essential feature is the accom modation of the horses at the rear of the plow P and in the path prepared by the plow.

a represents a lever pivoted to the rear portion of the frame or pole D and connected to the upper end of the colter O bya rod a. By operating this lever the snow-plow is caused to rock endwise on its connection with the frame or pole D, and in this manner the point or front end of the plow canbe raised or lowered, as may be desired. A notched quadrant Z, attached to the pole D and engaging the lever, holds the lever in its requisite position. Another lever n is fulcrumed on the rear portion of the pole D and connected to the crank-arm e of the axle e by a rod 1 By means of said lever the axle can be turned to carry the downwardly-extending crankarms 6' 6 thereof into different angles of inclination, and thereby raise or lower theframe A, on which the snow-plow is mounted. The lever engaging a toothed quadrant 0 on the pole D retains the lever n in its desired position.

downward from the plow, wheels or runners on said crank-arms, a crank-arm extending upward from said axle, a push-frame extending rearward from the plow, and a lever fulcrumed on said frame and connected to the aforesaid upwardly-extending crank-arm, as and for the purpose set forth.

3. The combination, with the snow-plow P, mounted on the axle, of carrying wheels or runners, and the push-frame D, extending rearward from said plow, the colterO, rigidly secured to the plow, the lever a, pivoted to the push-frame, and the rod a, connecting said lever to the upper end of the colter, snbstantially as described and shown, for the purpose set forth.

4. The combination, with the frame A, hung near its rear end on the axle of carrying wheels or runners, and the snow plow P, mounted on said frame, of the pole D, having rigid arms I) 1) extending therefrom and pivotally connected to the frame A, the shoulder c, fixed to the poleand abutting against the rear end of said fram e,and guides dd, seou red to the frame at opposite sides of the pole, substantially as described and shown.

In testimony whereofIhave hereunto signed my name this 24th day of October, 1891.

WILLIAM Y. FISHER. L. s.]

Witnesses:

NORMAN ARMSTRONG, ALLAN R. JOY.

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