US1463120A - Road plane - Google Patents

Description

IN'VEJV'TOR.'

ATTORNEY July 24, 1923-.

w.' H. JENNINGS ROAD PLANE Filed Dc.

Patented July 24, 1923.

ice. a

WILLIAM E. JENNINGS, OF ST. PAUL, MINNESOTA, ASSIGNOR OF ONE-HALF TO LEO LEVY, OF' ST. PAUL, MINNESOTA.

ROAD PLANE.

Application filed December 12, 1921. Serial No. 521,914.

To all whom t may concern:

Be it known that l. VILLIAM H. JEN- NINGs, citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented a new and useful Road Plane, of which the followin@ is a specification.

My invention relates to road planes or machines for leveling the top of roads, and the object is to provide an eXtra efficient 1mproved machine of said kind.

In the accompanying drawing:

Fig. 1 is a top view of my improved machine.

Fig. 2 is a side elevation of Fig. 1.

Fig. 3 is a rear end elevation of Fig. 2.

Fig. 4 is a section on line 1- 4L in Fig. 1.

Fig. 5 is a section on line 5-5 in Fig. 1.

Referring to the drawing by reference numerals, the main frame of the machine is a flat skeleton structure made of angle iron and composed of parallel spaced side bars 6 and cross bars 7. The side bars have each an upward flange 6a upon the outer edge, and

.the cross bars have each a downward flange 7 at the forward edge. Secured to each of the flanges 7a by bolts S is a steel blade 9 which in a full sized machine inclines with its lower edge about half an inch forward of the upper edge so as to better engage the ground and also retain a sharper front edge than if the blade stood in vertical position..

The right hand end of each blade 9 is curved forward as at 10 so as to prevent escape to that side of dirt heaped up in front of each blade.

The front end of the frame is provided with a chain 11 or other suitable means for hitching thereto either draft animals or a tractor, and upon the frame is mounted 'a seat 12, while the rear end of the frame is rovided with a diagonally arranged end board 13 lined with sheet metal 14: at the front side. Said board is pivoted at 15 to swing up and down with its rearmost end; the latter end is pivoted at 16 to the rear arm of a hand lever 17, which is fulcrumed at 18 and carries a nger lever 19 operating a dog 2O engaging a toothed sector 21.

To enable the machine to be held above the ground during transportation it is provided with two transverse angle bars 22, each of which has its ends trunnioned at 23 and has a pair of casters 24 swiveling at 25, or if so desired the rear ones may not swivel but be secured by rivets 26.

Each bar 22 is provided with a hand lever 27 and near it is pivoted at 28 to the main frame a dog 29 having a notch 30 adapted to engage alternately either one of the two flanges of bar 22 so as to hold the casters either clear above the ground, as shown in full lines, or downward as shown in dotted lines when the machine is drawn idle.

In the operation of the machine thelevers 27 are used for turning the` bars 22 with the casters to the desired position. When starting operation on a road the machine is lowered with the blades 9 down to the lowest position and the vcasters locked by the dogs 29. The machine, which for ordinary requirement may be about six to seven feet wide and about sixteen feet long, is then drawn forward with the guards 10 near one edge of the road. rIhe blades 9 will now scrape the dirt from the higher into the lower parts of the ground and whatever surplus of dirt will not sink into cavities in the ground is engaged by the board 18-14:

4which finishes the surface of the road by spreading as much as possible of said surplus dirt into cavities not already filled, and if there is a remainder of surplus dirt the same is forced out through the clearance 31 in Fig. 1 and left along the middle of the road where it'may be worked down or removed in the next drive of the machine in the opposite direction upon the other half of the road. If the road is a wide one themachine may be hauled back and forth several times until the road is fully smoothed and may be further treated by a roller. One of the main features of my machine is that it is long enough to never tilt or tip into the cavities it is to fill in planing the road.

What I claim is: y

A road planer comprising an elongated skeleton frame adapted to be drawn endwise,

a series of transverse scraper blades fixed to the under side of the :traine and a diagonally arranged, vertically disposed scraper blade hingedly attached to one of the rear corners of the frame, and means carried by the other rear corner of the frame and 0peratvely attached t0 the adjacent end of the diagonal board for raising and holding it raised to various positions, said frame llaving` transverse angle bars and bolts passed 10 through said angle bars and the scraper blades to make the blades detachable for grinding or repariing.

In testimony whereof I afx my signature.

WILLAM H. JENNINGS.

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