US438008A - leslie - Google Patents

Description

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E. LESLIE. ROTARY SNOW PLOW.

No. 488,008. I Pat entefi Oct. 7, 1890.

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EDWARD LESLIE, OF ORANGEVILLE, CANADA.

ROTARY SNOW-PLOW.

SPECIFICATION forming part of Letters Patent No. 438,008, dated October 7, 1890.

Application filed June 19, 1890.

To all whom it may concern:

Be it known that I, EDWARD LESLIE, of Orangeville, in the Province of Ontario, Dominion of Canada, have invented a new and Improved Rotary Snow-Plow, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved rotary snow-plow which is simple and durable in construction, very effective in operation, and specially designed to quickly remove the snow from railroad tracks and throw the same a suitable distance on either side of the track.

The invention consists of a wheel provided with pockets having rigid walls and open in front to admit the snow and open at the top for the exit of the snow.

Theinvention also consists in certain parts and details and combinations of the same, as will be described hereinafter, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a front view of the improvement. Fig.2 is a sectional side elevation of the same with parts in elevation. Fig. 3 is an enlarged sectional plan view of part of the wheel on the line a w of Fig. 1, and Fig. 4 is a similar view of part of the wheel on the line y 1 of Fig. 1.

The improved rotary snow-plow is provided with a wheel A, secured on the end of a shaft B, mounted to turn in suitable bearings in a car 0, which also contains a motor for imparting a rotary motion to the said shaft 13 in either direction. The wheel Ais mounted to turn in a casing D, open at the front and provided in its top with an outlet E, in which is preferably arranged a deflector, so as to guide the snow to either side of the railroad-track.

The wheel A is provided with a hub F, near the front end of which are secured radiallyarranged pockets G, acting as shovels, and provided in the front with openings G for the admission of the snow, and also open on the top for the exit of the snow. As shown in the drawings, the pockets are made in the form of a hollow cone; but it is evident that other forms may be substituted. The front of each pocket G stands about at right angles to the shaft B, while its rear slopes from the Serial No. 356,010. (No model.)

hub inward. and upward to the circumference of the wheel, thus forming a natural circular chute for the snow to pass out through the top opening by centrifugal force without clogging when the wheel is rotated.

In each of the openings G'are arranged two knives H and H, connected by suitable hinges I with the front edges of the pockets G, the said knives being so arranged that when one is open the other is closed. (See Fig. 3.) In order to alternately open and close the two knives in each of the openings G, the two adjacent knives of two successive pockets are pivotally connected with each other by one or more rods J, as is plainly shown in Figs. 1 and 4, so that when one knifeof one pocket is in closed position the adjacent knife of the next following pocket is in an open position, and vice versa.

In order to limit the opening and closing of the connected knives of two adjacent pockets, the knives are provided with lugs K and K, respectively, riveted or otherwise fastened to the said knives at the front and extending over the fixed eye of the hinge I, so as to act as a brake to prevent a too rapid opening or closing of the said knives. The free ends of the lugs K and K are adapted to alternately abut against the ends of a bar L, secured by suitable means to a suitable bracket N, secured to the outsides of two adjacent pockets, as is plainly illustrated in Figs. 1 and 3. As will be seen in the latter figure, when the knife H is open, its lugs K abut against the left-hand end of the bar L, while the other knife H of the adjacent pocket is in a closed position, and its lug K is disconnected and a suitable distance away from the right-hand end of the bar L. When the knife is in an open position and is cutting, the strain on the hinge of the knife is taken up by the respective lugs and the bars L, so that the hinge connecting the respective open knife to the pocket is not materially affected, and consequently remains serviceable for a long time.

WVhen the wheel A is rotated in the direction of the arrow at, as indicated in Figs. 1 and 3, then the knives H swing automatically into an open position without any special mechanism, while the other. knives H close. The action of the knives is caused by air, snow, or other substance entering the openings and pressing against the knives H, the fulcrum ends of which stand in the direction of the movement of the wheel, while the other knives H are pressed against on their inner sides by the said substance entering the openings G, thus causing an automatic opening and closing of the knives whenever the wheel is turned. When the motion of the wheel is reversed, the knives H close, while the knives H open for the same reason as above mentioned.

It is understood that the cutting-edges of the knives H and H extend to about the middle of the openings G, and also extend radially throughout the length of the said openings.

It is understood that when the wheel is rotated and the car 0 is moved forward, so that the wheel passes into the snow, then the open knives, standing at angles to the front face of the wheel, cut into the snow, so that the latter passes through the openings G into the pockets, from which the snow passes out at the rimof the wheel by centrifugal force into the outlet E, to be guided by the deflector in the latter to either side of the track.

The front end of the hub F is preferably cone-shaped, projecting a suitable distance from the face of the wheel, as is plainly illustrated in Fig. 2. In this cone-shaped end of the hub F are inserted at angles outwardly and forwardly extending cutter-bars O, which serve to loosen the snow before the latter comes in contact with the cutting-knives and enters the pockets G.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a rotary snow-plow, a wheel provided with pockets having rigid walls and open in front to admit the snow, and open at the top for the exit of the snow, substantially as shown and described.

2. In a rotary snow-plow, a wheel provided With pockets rigidly fastened to the hub of the Wheel, and each provided in front with an opening to admit the snow, and open at the rim of the wheel for the exit of the snow, substantially as shown and described.

3. In a rotary snow-plow, a wheel provided with radially-arranged pockets, each having a front and a top opening, and automatically-reversing knives arranged in the said front openings, substantially as shown and described.

4. In a rotary snow-plow, a wheel provided with radiallyarranged pockets having rigid walls and located one alongside the other, and made in the form of hollow cones, substantially as shown and described.

5. In a rotary snow-plow, a wheel provided with radially-arranged pockets having rigid walls and located one alongside the other, made in the form of hollow cones, and each havingafrontopening,substantiallyas shown and described.

6. In a rotary snow-plow, a wheel provided with radially-arranged pockets having rigid walls and having front openings standing at right angles to the axis of the wheel, substantially as shown and described.

7. In a rotary snow-plow, a Wheel provided with radial pockets formed of hollow cones, open in front to admit the snow, and two knives hinged in each opening at the sides and adapted to alternately open and close, substantially as shown and described.

8. In a rotary snow-plow, two pivoted knives arranged opposite each other, and a link for connecting the same so as to alternately open and close the knives, substantially as shown and described.

9. In a rotary snow-plow, the combination, with two hinged knives and a link for pivotally connecting the said knives with each other, of lugs secured on the said knives, and fixed bars adapted to be engaged by the said lugs to limit the movement of the said knives, substantially as shown and described.

10. In a rotarysnow-plow, the combination, with hinged knives, of fixed bars forlimiting the swinging movement of the said knives, substantially as shown and described.

-1l. In a rotary snow-plow, the combination, with a wheel provided with radial pockets, each formed of a hollow cone having an opening in the front to admit the snow, of two' knives hinged on each pocket in the said opening, and links for pivotally connecting two adjacent knives of two successive pockets, substantially as shown and described.

12. In a rotary snow-plow, the combination, with a wheel provided with radial pockets, each formed of a hollow cone having an opening in the front to admit the snow, of two knives hinged on each cone in the said opening, links for pivot-ally connecting two adjacent knives of two successive cones, and means, substantially as described, for limiting the swinging motion of the said knives, as set forth.

13. In a rotary snow-plow, a wheel provided with a hub having a cone-shaped end and angular cutter-bars secured thereon, substantially as shown and described.

14. In arotary snow-plow, the combination, with a wheel provided with a hub, and radial pockets secured on the said hub and having openings in the front for the admission of the snow, of two independently-hinged knives arranged in the said openings and adapted to' alternately open and close, substantially as shown and described.

EDWARD LESLIE.

Witnesses:

THEO. G. HOSTER, C. SEDGWICK.

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