US767725A - Snow-scraper. - Google Patents

Description

No. 767,725. PATENTED AUG. 16, 1904.

I. WONNAGOTT.

SNOW SURAPER.

APPLICATION FILED APR. 22, 1904.

N0 MODEL. 4 SHEETS-SHBET l.

WITNESSES: [NVENTOR M 'WTZZZf No. 767,725. PATENTED AUG. 16, 1904.

I. WONNAGOTT.

SNOW SGRAPER.

APPLICATION EILED APR. 22, 1904.

N0 MODEL. 4 SHEETS-SHEET 2 W1 TNESSES: [NI/ENTOR No. 767,725. PATENTED AUG. 16, 1904.. I. WONNAGOTT.

SNOW SORAPER.

APPLIGATION FILED APR. 22, 1904.

NO MODEL. 4 SHEETS-*SHEET 8.

WITNESSES: gaaw/ow, 4 W

PATENTED AUG. 16, 1904.

V I. WONNAOOTT. snow SGRAPER.

APPLICATION FILED APR. 22, 1904.

4 SHEETS-BHEET 4.

H0 KODEL.

Attorney/4 INVENTOR WITNESSES.-

being the steering-wheels.

UNITED STATES Patented August 16, 1904.

PATENT OFFICE.

SNQW-SCRAPER.

SPECIFICATION forming part of Letters Patent No. 767,? 25, dated August 16, 1904.

Application filed April 22, 1904. Serial No. 204,416- (No model.)

To all whom it may concern:

Be it known that I, ISRAEL VVoNNAoo'rtr, a citizen of the United States, residing at W aymart, in the county of Wayne and State of Pennsylvania, have invented new and useful Improvements in Snow-Scrapers, of which the following is a specification.

My invention relates to a machine for removing snow from frozen rivers and lakes previous to cutting the ice thereon; and it consists in certain novel features of construction hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of the machine. Fig. 2 is a top plan view thereof. Fig. 3 is a bottom plan view. Fig. 4 is avertical section on the line 4 1 of Fig. 3, showing in detail the hanger which supports the axle of the traction-wheels. Fig. 5 is an elevation of the front part of the machine, showing the scraper in operative completion. Fig. 6 is a like view showing the position of the scraper when it is dumped. Fig. 7 is an enlarged detail view of one of the wheel-calks.

Referring specifically to the drawings, 10 denotes the frame of the machine, which is mounted'on wheels, the rear ones, 11, being the traction-wheels and those in front at 12 Both pairs of wheels have on their tires calks or studs 13 to increase the traction. The calks have a threaded stem 13 to screw into the tires, and they are arranged in staggering rows, as shown. A squared shoulder 13 is also provided to afford a hold for a wrench, whereby the calks can be readily removed to be replaced when worn.

The frame of the machine supports the engine 14c, boiler 15, and the running-gear, to be described. The axle 16 of the tractionwheels is in two parts,'16 and 16 respectively, both being supported at their outer ends in hangers 17 under the frame 10. Their inner ends are supported in a hanger 18 on the frame. The hangers 17 have a verticallymovable box 17. A strong spiral spring 17 between the box and top of the hanger-frame 'takes up all jar and vibration at the rear end of the machine, on which the boiler is supported.

The driving-shaft is indicated at 19, and on each side thereof are counter-shafts 20 and 21, respectively, said shafts being supported in suitable bearings 22 on the frame 10. Each counter-shaft has a friction-clutch 23 of any suitable construction, the loose member of which is formed with a pinion 23 in mesh with a spur-wheel 23 on the driving-shaft. The counter-shaft 20 has sprockets 20 and 20 connected to sprockets 16 and 16 respectively, on the axle 16, a sprocket being provided for each member of said axle. The sprocket-2O on the counter-shaft 20 has a clutch 20, whereby that side of the axle 16 can be thrown out of gear to prevent binding of the wheels when turning. The counter-shaft 21 has sprockets 21, connected with the hoisting apparatus,'to be hereinafter described, and the driving-shaft is also provided with a fly-wheel 19 The steering-wheels 12 run loosely on short axles 12*, which are pivoted at 12 in a supporting-beam 12 under the frame 10, the outer ends of the beam being forked to receive the axles.

At 12 at the middle of the beam 12, a horizontally-extending lever 25 is pivoted, which is connected by rods 25 to stems 25", extending forwardly from the axles. When the lever is vibrated, the steering-wheels will be shifted and by reason of the connections just described they will move in parallelism. The lever 25 is vibrated by a vertical shaft 26, having at its lower end an offset extension or stem 26, which enters a slot 26 in the front end of the lever 25. Rotation of the shaft 26 will cause the lever to vibrate in a horizontal plane, whereby the wheels are swung in either direction and the machine is steered. The shaft 26 is supported in a suitable bearing 27 in front of the machine and has at its top end a pinion 27, which is in mesh with a pinion 27 b on a short shaft also supported in the bearing 27 and whichcarries a handle 27 To the front end of the machine a frame 28 is attached, which carries a scraper 29. This I frame has runners 28 and will be pushed the ice by the machine.

along over the ice'by the machine. It has at its rear end on each side an arm 28, which extends upwardly under a strap or bracket 28 on the frame 10, to which it is pivoted at 28. This connection enables it to readily clear obstacles when it is being pushed over the runner-frame and is held against lateral displacement by standards 30, which extend upwardly from the frame on each side thereof.

At 31 are indicated arms, which are pivoted in front to the sides of the scraper. arms extend along both sides of the scraper and have their rear ends connected by a rod 32, which extends loosely through said arms. The frame 10 in front thereon carries a rockshaft 33, which is cranked at 33. A connecting-rod 34 extends from each crank to the rod 32. This connection is for the purpose of shoving the scraper over the front end of its supporting-frame into operative position and pulling it back when full. The rock-shaft has a hand-lever 35 for operating it, said hand-lever being provided with the usual spring-latch engaging a rack 35. When the hand-lever is thrown rearwardly, the rock-shaft connecting rods and arms 31 will push the scraper over the front end of its supporting-frame, while a reverse movement will pull it back thereon.

Each corner of the frame 10 has standards 36, which are connected at the top by crossbeams 36 and side beams 36 A shaft 37 extends across the side beams, being journaled in bearings 37 thereon. On this shaft, near each end thereof, are winding-drums 38. The shaft also has sprockets 39, connected by chains 39 with the sprockets 21 on the counter-shaft 21. The shaft 37 also has a band-brake 10 of any suitable or preferred construction. Cables 41 are wound on the drum and extend to the front end of the machine over rollers 42 on the cross-beam 36 and downwardly to the scraper, to which they are secured at the rear end thereof.

The operation of the machine is as follows:

When it is proceeding to its place of operation, the scraper will be carried on its supporting-frame, as shown in Fig. 1. To operate the scraper, the lever 35 is swung rearwardly, which rocks the shaft 33, and by reason of the connections already described the scraper will be shoved forwardly over the The scraper sits on These be swung forwardly to pull the scraper back on its supporting-frame, the cable in the meantime being slacked sufliciently to permit this movement. The hand-lever is then locked to the rack 35*, which will securely hold the scraper on its supporting-frame, after which the machine will be propelled to the dumpingplace. To dump the scraper, the brake 4:0 is thrown off and the clutch 23 is thrown into operative position. The counter-shaft will then receive motion from the driving-shaft through the gearing already described, which will be transmitted to the drum-shaft through the sprockets 21, chains 39*, and sprockets 39, which will wind the cables on the drums and elevate the scraper, as shown in Fig. 6. After it is emptied it is lowered and replaced on its supporting frame by throwing the clutch out, its descent being controlled by the brake 41, after which the machine is again ready for operation.

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

1. A machine of the character described, comprising a traction-engine, a frame on runners coupled to the front end thereof, a scraper on the frame, and means for elevating and dumping the scraper.

2. A machine of the character described, comprising a traction-engine, a frame hinged to the front end thereof and mounted on runners, a scraper carried by the frame, means for tilting the scraper over the front end of the frame into operative position, and means for elevating and dumping it.

3. A machine of the character described, comprising a traction-engine, a frame hinged to the front end thereof and mounted on runners, a scraper carried by the frame, a rockshaft and a connection between the same and the scraper for tilting it over the front end of the frame into operative position, and means for elevating and dumping it.

4. A machine of the character described, comprising a traction-engine carrying a hoisting apparatus, a frame hinged in front of the traction-engine and mounted on runners, a scraper on the frame, a connection between the scraper and hoisting apparatus for elevating and dumping the former, a rock-shaft, and a connection between the rock-shaft and the scraper for tilting it over the front end of the frame into operative position.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ISRAEL WONNAOOTT.

Witnesses:

OSCAR F. CARR, RAYMOND COREY

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