US924902A

US924902A - Railway snow-clearing machine.

Info

Publication number: US924902A
Application number: US45984408A
Authority: US
Inventors: Frederick Clinton Harris
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-10-28
Filing date: 1908-10-28
Publication date: 1909-06-15
Anticipated expiration: 1926-06-15

Description

r. 0. HARRIS. v RAILWAY SNOW CLEARING MAGHINE. APPLICATION FILED OUT. 28, 1908.

924,902. Patented June 15, 1909.

2 SHEETS-SHEET l.

F1l3.l.

7 *6 9 lNvEN'ruH FREDERICK E.HA1=LHI F. G. HARRIS. RAILWAY SNOW CLEARING MACHINE. APPLICATION FILED 001222. 1908.

Paltented'June 15, 1909.

2 SHEETS-SHEET '2.

Fla-QC.

WITNESSES I INVENTDH W 7/ v Q FREDERICK B.HAR'HI wmgm THE NORRIS rsrsns co., WASNINOTOALD L FREDERICK CLINTON HARRIS, OF SAGKVILLE, NEW BRUNSWICK, CANADA.

RAILWAY SNOW-GLEARIN G MACHINE.

Specification of Letters Patent.

Application filed October 28, 1908.

Patented June 15, 1909.

Serial No. 459,844.

To all whom it may concern:

Be it known that I, FREDERICK CLINTON HARRIS, of the town of Sackville, in the Province of New Brunswick and Dominion of Canada, have invented certain new and useful Improvements in Railway Snow-Clearing Machines, of which the following is a full, clear, and exact description.

My invention relates to improvements in railway snow clearing machines and the object is to provide a device that can be used in the ordinary manner for breaking out the track after a snow storm, and then immediately adjusted for widening the cut thus formed and throwing the snow removed to both sides of the track.

A further object is to provide a widening means which can be readily adjusted and drawn in when passing trains or objects close to the track.

To accomplish these objects, I provide a plow of ordinary form for breaking out the track in the usual manner. On either side of the plow and to the rear thereof, are secondary plows having the same inclination as the first. These secondary plows are hinged at the rear of the machine so that the points thereof may be swung out or in by a suitable mechanism. Inclined planes or chutes are provided at their lower or front ends near the point of the secondary plows. Mold boards are fixed to the upper or rear extremities of the chutes to throw the snow outwardly toward the fences on either side of the track. Suitable mechanism is provided for moving the chutes in or out independently of the secondary plows. A suitable lookout compartment is provided at the top of the machine from where the adjustment of the various parts of the apparatus can be readily and easily effected.

In the drawings which illustrate my inventionz Figure 1 is a side elevation of the de vice. Fig. 2 is a plan view showing one of the secondary plows and chutes moved out in operative position. Fig. 3 is a front elevation similar to Fig. 2. Fig. 4 is a rear elevation corresponding to Figs. 2 and 3.

In the above defined figures, 5 designates a push plow of the ordinary railway type mounted on trucks 6. Triangular wings or secondary plows 7 are hinged on each side of the apparatus at 8 near the rear thereof, so that the points 9, which are each provided with a strong metal nose 10, may swing outwardly, as seen in Figs. 2, 3 and 4. Each wing is provided with a triangular top plate 11 extending inwardly therefrom, and forming part of an inclined chute parallel with the front of the plow. The other portion of each chute is formed by a plate 12 which is pivoted at 13 to the nose of the wing and extends rearwardly and upwardly in the same plane as the top plate 11. A curved mold board 14 is fixed to the upper extremity of the plate 12, as seen in the drawings. The upper edges of the mold boards and the outer edges of the plates 12 are stiffened by

angles

15 and 16, respectively, riveted thereto.

To prevent the outer top corners of the plates 12 from sagging, I provide bars 17 pivoted at their upper extremities 18 to the rear of the machine. Further bars 19 are pivoted at their upper extremities 20 to the brackets 21 fixed to the under sides of the plates 12. The lower extremities of these bars are united by pivots 22. Chains 23 are fixed to the machine body and the chains passed around pulleys 24 carried by the bars 17 and fixed to the bars 19, as seen in Fig. 4. These chains prevent sagging of the bars, and further keep the pivots 22 perpendicularly under the centers of the arcs formed between the bars, thereby forcing the upper extremity 20 of the bar 19, when movlng outwardly, to move in a horizontal line. Scrub irons 25 are provided to keep the

bars

17 and 19 clear of the body of the machine. A suitable lookout compartment 26 is provided at the top of the apparatus having front and side windows 27 and 28, respectively, and a door 29 at the rear reached by a ladder 30, or other suitable means. The mechanism for adjusting the Wings and chutes is shown to consist of toothed racks 31 pivoted to the moving members and engaged by pinions 32 rotated by means of shafts 33 and hand wheels 34 located in the lookout compartment. This rack and pinion mechanism may be replaced by any other suitable mechanism which will quickly and easily move the parts in or out.

The operation of the device is very simple and can be readily understood from the drawings which show the wing and chutes extended in operative position on one side of the machine and folded or drawn in on the other side.

When breaking out a track after a heavy storm, the wings and chutes are drawn in and the Vplow operated as an ordinary push plow. hen the track is thus opened and the greater weight of snow removed, the machine is transformed into a Widener by moving the wings and chutes out so that as theapparatus is shoved or hauled along the track, the secondary plows or wings 7 cut away the snow on either side of the cut previously made. The snow thus loosened passes up the chute plates 12 and is thrown to each side by the mold boards 14, thus preventing it from falling back into the cutting.

The crew in the outlook 26 can, by means of the hand wheels 34 located therein, adjust the apparatus to suit varying conditions. For example, when passing water tanks, the upper or rear end of the plate 12 is drawn in. As this plate is pivoted at its lower end 13, it will be seen that the up er end may be moved independently of the lower end, or of the wing 7 When passing a station platform, the wing may be drawn in until its point 9 clears the platform, while the upper end of the plate 12 remains out full width. When assing a train, the wing 7 and chute 12 may both be drawn in on the passing side without in any way affecting the corresponding parts on the other side. Thus it will be seen that each of these movable parts is entirely independent of all the others and performs its own function regardless of whether the other parts are in operation or not. The outer top corners of the chute plates 12 are prevented from sagging by the

bars

17 and 19 which are connected, as shown in the drawings, by the chains 23. The arrangement of this chain causes each of the levers to move through an equal arc and maintain the pivots 22 perpendicularly under the centers of the arcs formed between the levers, whereby the upper extremity of levers 19 move in a horizontal line, the drop due to the radial motion be ing compensated for by the rise of the pivots 22 at the lower extremity of the levers 17.

The advantages of the device will be obvious from the foregoing description and drawings.

Having thus described my invention, what I claim is 1. A snow clearing machine comprising a plow, secondary plows on each side thereof, chutes pivoted to said secondary plows, and mold boards fixed to said chutes.

2. A snow clearing machine comprising a plow, adjustable secondary plows on each side thereof, chutes coo erating with said secondary plows, and mo d boards at the dis charge ends of said chutes.

3. A snow clearing machine comprising a plow, secondary plows on each side and to the rear thereof, means for adjusting said secondary plows, chutes pivoted to said second- 5. A snow clearing machine comprising a plow, a secondary plow on each side of and to the, rear thereof, hinged wings carrying said secondary plows, inwardly extending top plates fixed to the u per edges of said wings, chutes pivoted to the secondary plows and lying in the same plane as said top plates,

means for adjusting each of said secondary plates separately and independently of the secondary plows, a curved mold board at the discharge end of each of said chutes, and means for maintaining said chutes transversel horizontal.

6. A snow clearing machine comprising a plow, a secondarvplow on each side of and to the rear thereof, hinged wings carrying said secondary plows, inwardly extending top plates fixed to the u per edges of said wings, chutes pivoted to the secondary plows and lying in the same plane as the top plates, means for adjusting each of said secondary plates, separately and independently of the secondary plows, a curved mold board at'the discharge end of each of said chutes, pivoted bars and chains coo erating to maintain said chutes transversely horizontal, and a lookout compartment located at the top of the machine and containing said adjusting means.

7. A snow clearing machine com rising a body having a plow at the front t ereof, a secondary plow at each side thereof, to the rear of said plow, wings hinged to the rear of said body and carrying said secondary plows, inwardly extending top plates fixed to the upper edges of said wings, chutes pivoted to the secondary plows and lying in the same plane as said top plates, gearing for adjusting each of said. secondary lows and wings separately and independent y of the chutes, gearing for adjusting each of said chutes separately and independently of said secondary plows and wings, a lookout com artment located above the body of the mac ine, operating mechanism for said gearing located Within said lookout compartment, a curved mold board at the discharge end of each of said chutes, body bars pivotally depending from the rear of said body, chute bars pivotally depending from the upper ends of the chutes, pivots connecting the lower extremities of said bars, pulleys carried by said body bars,

and chains fixed to the body passing around of said chutes, and means for adjusting said 10 said pulleys and fixed. to the chute bars chutes separately and independently of the whereby the radial motion of said bars is secondary plows. maintained equal. In witness whereofI have hereunto set my 8. In a snow clearing machine, the combihand in the presence of two witnesses.

nation with a plow, a secondary plow on each FREDERICK CLINTON HARRIS.

side thereof, chutes adjacent said secondary Witnesses: plows, means for adjusting each of said sec- F. W. EMMERsoN, ondary plows separately and independently H. H. COLEMAN.