US1000301A - Cutting-machine. - Google Patents

Description

i G. SHAW.

CUTTING MACHINE.

- Arrmoulon FILED 0017,1910.

1,000,301. PatentedAug. 8, 1911.

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BY I 4 4% M- ATTORNEYS WLIJMIIA PLANOGIAPH O0 WASHINGTON, P. C.

G. SHAW.

CUTTING MACHINE.

APPLICATION mum on. '1, 1910.

1 ,000,301. Patented Aug. 8, 1911.

2 SHEETS-SHEET 2.

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CLARENCE SHAW, F SUSANVILLE, CALIFORNIA.

CUTTING-MACHINE.

Specification of Letters Patent.

Patented Aug. 8, 1911.

Application filed. October 7, 1910. Serial No. 585,782.

To all whom it may concern:

Be it known that I, CLARENCE SHAW, a citizen of the United States, and a resident of the city of Susanville, in the county of Lassen and State of California, have invented a new and Improved CuttingMachine, of which the following is a full, clear, and exact description.

The invention relates to cutting machines, more particularly to cutters and swathers for cutting grain and the like, and has for an object to provide a device of the character mentioned, for cutting down grain and the like when it is desired to harvest the same.

For the purpose mentioned, use is made of a vehicle chassis provided with a cutter frame having a plurality of cutter bars thereon and connected with eccentric means,

secured to suitable driving means in engagement with the wheels of the vehicle, to operate the cutter bars, and a swather secured to one end of the cutter frame for dividing the cut and uncut grain and for substantially preventing any grain from passing through the cutter bars after the same has been cut down.

Reference is to be had to the accompanying drawings, constituting a part of this specification, in which similar characters of reference denote corresponding parts in all the views and in which Figure l is a plan view of my machine; Fig. 2 is a sectional view taken on the lines 22 in Fig. 1; Fig. 3 is a sectional elevation taken on the lines 33 in Fig. 1; and Fig. 4 is a side elevation of the swather.

In most cutting machines provided with a plurality of cutter bars arranged to operate in a cutter frame, the particular form of driving means for operating the cutter bars are found to be intricate, undurable and impractical. In machines of the character mentioned, the cutter bars should be operated relatively, that, is, the movement of one cutter bar should be governed relatively to the movement of the other bar so that a clean and decisive cut is obtained and in this manner all clogging of the cutter bars and cutting frame is avoided.

In my device, I connect my cutter bars to separate eccentrics secured to a main driving shaft and with the eccentric members in different positions relative to the shaft, so that when the cutter bars are operated, the knife edges of the upper bar will pass over the knife edges of the lower bar at just the proper moment to secure a clean out. With the addition of a double swather, the cut grain and the grain to be cut are divided as the machine operates over the field thus preventing any out grain from passing through the cutter bars when the machine is operated over an uncut portion of the field and directly adjacent to a cut portion of the field.

Referring more particularly to the various drawings, I provide a suitable vehicle chassis mounted on traction wheels 11 adapted to turn an axle 12 when the wheels are revolved. Secured to the axle 12 is a bevel gear 13 in mesh with a second gear 14 keyed to a shaft 15. A main driving shaft 16 is mounted on the chassis and connected to the shaft by a chain 17 operating over toothed wheels 18 and 19. A cutter frame 20 is mounted to swing from one side of the chassis 10 and consists of upper and lower toothed members 21 and 22 spaced a distance apart to constitute suitable guideways. A shoe 23 is secured to the inner end of the cutter frame 20 and is adapted to prevent the cutter members of the frame from hitting and dragging into the ground. At the other end of the frame 20 a second shoe 24 is secured and secured to this shoe and extending rearwardly therefrom is a swather 24, consisting of diverging plates 25 and 25*, the said swather being provided with a curved portion 25 to suitably fend off the grain. The plate 25 of the swather is inclined toward the machine so that any out grain is kept well within the path of the machine and substantially preserved in a continuous row. The plate 25, being curved outwardly fends olf the uncut grain so that the same will not lie flat and can be easily cut by the machine. Thus it will be seen that the out grain is at all times spaced from the uncut grain by means of the rearwardly extending double swather 24 Mounted to slide intermediate the toothed members 21 and 22 are a plurality of cutter bars 26 and 27, the cutter bar 26 being mounted to rest on the bar 27 provided with a flanged guide 28. Secured to one end of each of the cutter bars 26 and 27 are rods 29 and 30 connected with eccentrics 31 and 32 mounted on the main shaft 16. As shown in Fig. 3 the relative positions of the eccentrics 31, 32 are not alike thus making it possible to have the cutter bars operate toward each other so that a clean out can be obtained.

Now by moving the machine over the field to be mowed, the cutter bars 26, 27 indirectly connected With the traction Wheels 11, will operate to cut the grain or grass over which the machine travels and the plate 25 tends to guide the cut grain toward the path over which the machine has traveled so that when the machine isoperated over the next adjacent portion'to be cut, it will be readily seen where the grain has not been cut down and previously cut grain will not lie in the path of the machine and thus be re-cut.

Having thus described my invention, I

Copies of this patent may be obtained for-five cents each, by'addressingithe Commissioner of l 'alte'nts,

end of the cutting bar of a cutting machine, comprising a shoe adapted to rest on the ground, two plates carried by the shoe and extending rearwardly thereof and adjacent the ground, one end of each of the said plates being connected to the said shoe, the

said plates being divergent as their other Washington, D. G.

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