US368885A - Mower - Google Patents

Description

2 Sheets-Sh@t 1' Modell.)

MOWBR Patented Aug; 2s,A 1887;

(No M0881.) 2 sheets-snm 2.

J. GILHREST.

MOWER.

No. 888,885. Patented Aug-z8, 1887.l

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y UNITED STATES PATENT Griffen.

JAMESl GILCHREST, OF RAVENSWOOD, ILLINOIS.

iS/lowes.

SPECIFICATION forming part of Letters Patent No. 368,885. dated August 23, 1887.

Application led October 11, 1886. Serial No. 215,930. (No model.)

To @ZZ whom it may concern:

Beit known that I, JAMEs GiLcHRnsr, a citizen of the United States, residing at Itavenswood, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Mowers, of which the following is a description.

This invention is an improvement upon my invention for raising the cutter-bar described in my Patent No. 347,481, dated August 17, 1886, andv it relates particularly to the means for engaging the lifting mechanism with the `driving-power and for locking the lifting mechanism to hold the bar elevated and disengaging it to allow it to fall.

In the drawings, Figure l is a plan. Fig. 2 is a sectional elevation from the stubble side of the inner wheel.` Fig.`3 is a sectional elevation showing a modication of the mechanism for forcing the engagement of the lifting mechanism with the driving-power. Fig. 4 is an elevationin which is shown the modilication contained in Fig. 3, and Fig. 5 a plan thereof.

Ais the inner drive-wheel; A', the clutchdisk thereon, which has a notched periphery, A1, forthe purpose of engaging the lifting mechanism. B is the axle, with which V'said disk is rigid.

The mower main frame comprises the tubular arm C', mounted on the axle, the forwardlyextended arm C, to which the cutter-mechanism frame is pivoted, the gearing-case G4, and

lthe bracket C5, which has the upper channel,

c5, in which the pole is secured. Rigid with the bracket C5 is the horizontal stem C50,which extends inward toward the vertical plane of the wheel A, and on the inner sideof said stem is pivoted the bell-crank lever D. .To the arm D may be secured the lifting-lever D1", and to the arm D2 is vsecured the rod D2, which at the lower end is connected to the cnt ter-mechanism frame E. Said frame is hinged ate to the forward end of the arm G2 of the main frame.

F is a lever pivoted concentrically with the axle B, connected at yone end by the link F' to the'arm D' of the bell-crank lever D, and having pivoted on the other end the dog F2, which overhangs the notched rim A10 of the disk A', and is provided with the spring f2,

tending to hold it 'out of engagement with said notched rim.

G is a sliding bar which is connected at the forward end to the arm DL of the bell-crank lever D below the connection of said arm to the link Dz". From said connection the bar G extends rearward parallel with the tongue above the arm C' of the frame, passing through the loop or staple G', which is formed upon a bracket, 01, which is rigid with the main frame, and which is conveniently, also, as illustrated, made in the form of a notched segment, provided for locking the tilting-lever H at any convenient point rearward from the loop G'. A spring, G2, is provided, reacting between the main frame and the bar G to sustain the rear end of said bar. Upon the upper edge of saidbar it has the notch or mere shoulder g, which, when the bar is caused to slide rearward a sufficient distance, may become engaged wit-h the loop G', and the spring G2, by

forcing the bar upward, tends to effect such engagement. From the rear portion of the bar G the horizontal stud G3 projects inward and across the Vertical plane of the disk A', so that it may overhang the dog F2 when the latter is at its rearmost position. Said loar may 'also be provided with a foot-rest, Gt

The action of this mechanism is as follows:

stud G3 to encounter the dog F2 and force it IOO into engagement with the notched rim A10, f

which is revolving with the axle, and which,

when such engagement is effected, draws forward the upper end of the lever, to which the dog is attachedrocking the lever over the axle-carrying the lower end rearward, and by means of the link F', attached to said lower end and to the arm D' of the bell-crank lever, rocking said lever over its pivot and causing the arin D2 to rise and lift the euttermechan ism frame. The same movement of the bellcrank lever causes the bar G to slide rearward through the loop G' and bring the notchgbchind the said loop by the time the dog F has encountered the cam K and been thereby disengaged from the notched rim A10. The driver will have lifted his foot from the bar G as soon as engagement of the dog F2 with the rim A1 was effected, and the bar having been caused to slide rearward, as described, the spring G2 forces it upward as soon as the not'ch g reaches the loop G', and by the engagement of the loop in said notch the bar is locked against returning forward when the disengagement of the dog F2 from the rim A10 occurs, and renders such return otherwise possible. When it is desired to lower the cutter-mechanism frame, an instantaneous stroke of the foot upon the bar G will disengage the notch from the loop, and the weight of the frame will cause it to fall and restore the connected mechanism to the initial position. Carelessness upon the part of the driver in the use of this mechanism may cause him to continue the pressure of his foot upon the bar G after the engagement of the dog and notched disk has been effected until the same have been disengaged by the cam K, thus preventing the loop G from becoming engaged in the notch g. This will cause the cutter-mechanism frame to fall again immediately upon the re-engagement of the dog and notched disk, and if the pressure of the foot is further continued it will be immediately raised again, because the bar G, sliding forward as the cutter-mechanism frame falls, will bring the stud G3 into position to engage the dog F2, as it also returns to its starting-point, and will force it again immediately into engagement with the disk and cause a repetition of the former movements. If it is desired to prevent this possibility, it may be done by employing a lever, as L, pivoted on the frame above the axle, or at any convenient point where the drivers foot may rest upon it over the pivot, and said lever may have the forward end, L', extended so that it overhangs the bar G and may be depressed upon it, and its rear end, L', extended so that it overhangs the dog F2 in the position of the stud G3, which in that case is omitted from the bar G.

When it is desired to lift the cutter-mech anism frame, the driver will depress the rear end of the lever L, thereby causing the rear end, L', to effect engagement of the dog F2 with the notched rim A10 and cause all the movements before described accompanying the lifting of the cutter-mechanism frame by the revolution of said disk.

The depressing of the rear end of the lever L lifts the forward end, L', so that it will not prevent the bar G from being forced up by the spring G2 and being locked under the loop G'. rIhe driver may therefore continue the pressure on the rear end of the lever L without causing the disengagement or preventing the engagement of the bar G, and without therefore causing the cutter-mechanism frame to drop. When he desires to drop said frame, he will shift the pressure of the foot to the forward end of the lever L. This will disengage the bar from the loop and the frame will fall. Such movement of the lever lifting its rear end carries it so high that it will not engage the dog F2, when the latter returns to its initial position when the frame falls. rIhe driver may therefore continue the pressure on the forward end of the lever without damage.

l. In combination with the main frame, the axle journaled therein, the cutter-mechanism frame hinged thereto, a lever pivoted on the main frame and connected to the cutter-mechA anism frame to lift the same, a lever pivoted about the axle and connected to the liftinglever, means, substantially as described, for locking the second-named lever to and disengaging it automatically from the axle, and a notched bar, as G, connected to and reciprocated horizontally by the lifting-lever, a stop, as the loop G', on the main frame to engage its notch, and a spring reacting between the main frame and the notched bar to lforce the latter into engagement with the stop, substantially as set forth.

2. In combination with the main frame, the axle journaled therein, the cutter-mechanism frame hinged thereto, a lever pivoted on the main frame and connected to the cutter-mech` anism frame to lift the same, a lever pivoted about the axle and ,connected to the liftinglever, means, substantially as described, for locking the second-named lever to and disengaging it automatically from the axle, and a notched bar, as G, connected to and reciprocated horizontally by the lifting-lever, a stop, as the loop G', on the main frame to engage its notch, and a spring reacting between the main frame and the notched bar to force the latter into engagement with the stop, and a lever, as L, pivoted on the frame and engaging the bar G when rocked in one direction, and when rocked in the other direction actuating the mechanism which locks to the axle the lever pivoted thereon, substantially as set forth.

3. In combination with the main frame, the axle journaled therein, the cutter-mechanism frame hinged thereto, a lever pivoted on the main frame and connected to the cutter-mechanism frame to lift the same, a notched disk revolved by the axle, a lever pivoted about the axle, a dog pivoted thereon in a position to engage the notches of the disk and provided with a spring to hold it out of such en- IOO IIO

IIS

In testimony whereof I have hereunto set 1o my hand, this 27th day of August, A. D. 1886, in the presence of two Witnesses.

JAMES GILoHRnsT.

Witnesses:

CHAs. S. BURTON, G. G. JACKSON.

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