US2075581A - Apparatus for snow removal - Google Patents

Description

March 30, 1937. M JESWlNE 2,075,581

APPARATUS FOR SNOW REMOVAL 2 Sheets-Sheet 1 Filed Dec. 11, 1934 vlIlIllIlIIIIIIII/I III/I/ March 30, 1937. A. M. JESWlNE APPARATUS FOR SNOW REMOVAL Filed Dec. 11, 1934 2 Sheets-Sheet 2 Patented Mar. 30, 1937 PATENT OFFICE APPARATUS FOR SNOW REMOVAL Adolph M. J eswine, Helena, Mont.

Application December 11, 1934, Serial No. 757,047

3 Claims.

My invention consists in a new and useful improvement in apparatus for snow removal and is designed particularly to provide an improved form of rotor to be used in the apparatus disclosed in my co-pending application for United States Letters Patent, Serial Number 749,856, although it is to be understood that its use is by no means limited to use with said apparatus. The particularly novel and useful features of my improved rotor are the design and relation of its parts and the fact that it comprises a single casting. My rotor consists of a hub, back plate and blades cast integral. I have produced a rotor which while being sufficiently light has very considerable strength due to its novel design. The blades are of sinuous configuration from the hub to their outer ends, thus affording strength, and they are braced laterally by their supporting back plate. Securing greater strength by this means, I have eliminated the usual bracing struts between the hub and the blades and have thus obviated any obstruction to the flow of the snow.

While I have illustrated in the drawings filed herewith and have hereinafter fully described one specific embodiment of my invention, it is to be distinctly understood that I do not consider my invention limited to said specific embodiment but refer for its scope to the claims appended hereto.

In the drawings:

Fig. l is a side elevation, partly in section.

Fig. 2 is a front elevation.

Fig. 3 is a vertical section on the line 3-3 of Fig. 4.

Fig. 4 is a vertical section on the line 4-4 of Fig. 3.

Fig. 5 is a horizontal section on the line 5-5 of Fig. 4.

As illustrated in the drawings, the device is mounted upon the front of an automobile truck T by any suitable means attached to the housing I in which is mounted the motor M for operating the device. Mounted upon the front of the housing I is the circular rotor housing 2 provided with the tangential discharge throat 3. Disposed over the upper half of the front of the housing 2 is the shield 4 and disposed about the lower open half of the front of the housing 2 is the concave scoop 5.

Suitably mounted in the throat 3 is the rotatable discharge spout 6 provided with a circumferential rack "I and co-acting pinion 8 with hand-wheel 9 for adjusting the spout 6, and a latch III for locking same in adjusted position.

Keyed upon the shaft I I of the motor M. which extends into the housing 2, is the rotor R having the hub I2, the rear face plate I3 and a plurality of radial blades I4 tapering outwardly from the hub I2 and extending forwardly at right angles from the plate I3.'

Relative to the direction of rotation of the rotor R, these blades I4 are convexly curved as at I4-a toward their inner ends and concavely curved as at I4-Z2' near their outer ends I4-c which project beyond the periphery of the plate I3 and are provided with extensions I3a from the plate I3.

It is to be particularly noted that the forward edges I4--d of the blades l4 are projected considerably forwardly of the front end of the hub I2.

The housing 2 has an orifice 2a of slightly less diameter than the diameter of the rear face plate I3, the periphery of the housing 2 about this orifice 2-0. being attached to the housing I.

From the foregoing description of the details of construction of my device, its use and operation will be obvious. The apparatus is driven against the snow to be removed by the truck T. Power from the motor M is applied through I the shaft II to the rotor R and the snow is supplied to the rotor R by the scoop 5, passing under the lower edge of the shield 4 so that the blades I4 of the rotor R receive the snow on their lower half of each revolution. The rotor throws the snow violently upwardly through the discharge throat 3 and the spout 6 which may be adjusted to deliver the stream of snow as desired.

It is to be particularly noted that the blades I4 of the rotor R (Fig. 1) are projected forwardly from the hub I2 of the rotor R toward the scoop 5, so as to facilitate their loading.

It is also to be particularly noted (Fig. 3) that as the plate I3 of the rotor R, integral with the blades I4, rotates therewith, any tendency for the snow to clog between the rotor R and the housing 2 about the hub I2 is obviated.

Having described my invention, what I claim 1. In a. snow removal apparatus, the combination of a housing; a prime mover mounted in said housing and provided with a shaft extending from said housing; a casing having a circular orifice concentric with said shaft, and a supply opening and a discharge opening, said casing being attached to said housing on the periphery of said orifice; and a rotor mounted on said shaft and disposed in said casing between said openings.

2. In a snow removal apparatus, the combination of a casing having a circular orifice, and a supply opening and a discharge opening; and a rotor mounted in said casing between said openings, and having a radial circular plate adjacent to and of a diameter slightly greater than the said circular orifice.

3. In a snow removal apparatus, the combination of means for supporting a rotatable shaft;

a shaft journaled in said means; a casing having supply and discharge openings and a circular orifice concentric with said shaft, and mounted on said supporting means; and a rotor mounted on said shaft in said casing between said openings, and having a radial plate covering said orifice.

ADOLPI-I M. JESWINE.

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