US1206491A - Plow-lift. - Google Patents

Description

J. WOLF.

- PLOW LIFT.

APPLICATION FILED MAR. 26. 1915.

Patented Nov. 28, 1916.

ing lever and the plow beam, and he makes such adjustment that under ordinary circumstances the proper position of the lever will be the central position, though sometimes the plow must be 'aised or lifted during the operation to combat the local variations. Under ordinary circumstances with the plow lever at the central position as indicated the plows will take the proper depth, if he wishes them to throw them down deeper he pushes forward on the lever 'and this operating through the rocker arm thrusts the beam down 'and causes the plow to bite deep. If he wishes to decrease the depth he pushes the other way.

. The A-frame arrangement stiffens and positions the 1)l()\' and the built-up traction beam. This traction beam moves up and down and it is through its movement that the height of the plow beams is varied. It has sufficient play so when the engine backs up with the plows in the ground the A-frames take the load and the long flexible links B B will not be bent by compression.

I claim:

1. The combination with a traction engine of a draw bar, means for transmitting the pull from the engine to the bar, separate means for raising and lowering the bar with respect to the engine frame and means for guiding the ,draw bar comprising an A frame mounted; on and downwardly de pending from the engine frame and-located immediately in, front of and in loose engagement with the draw bar.

2. The combination with a traction e'ngine of a dr w bar, means for transmitting the pull frointhe engine to the bar, separate means for raising and lowering the bar with respect to the engine frame and means for guiding the draw bar comprising an A frame mounted on and downwardly depending from the engine frame and located immediately in front of and in loose engagement with the draw bar, the side of the A frame in engagement with the draw bar being substantially perpendicular to the link.

3. A draw bar for traction engines and the like comprising an angle bar and a flat plate sepa ated one from the other, traction pins held between the bar and the plate and projecting beyond the ends thereof, the bar and one flange of the plate being perforated in register one with the other, traction' links pivoted at one end of the engine frame and at the other on the traction pins, and means for supporting the draw bar from the engine frame.

a. The combination with a traction engine frame of a draw bar, a pivoted tr'action connection between the bar and the frame, means for adjustably supporting the bar on the frame and for raising and lowering it with respect to the frame, said means comprising a bell crank, a controlling lever and a link connection between the bell crank and the d aw bar, meansfor varying the effective length of the connecting link to vary the response of the draw bar to th manipulation of the end lever.

55. The combination with a traction engine frame of a draw-bar. a pivoted traction connection between the bar and frame, op-

ator controlled means for raising and lowering the bag with respect to' the frame during operation, together with means adjustable onl when the machine is not in operation for varying the responsc'ofthe draw-bar to the operator controlled means.

0. The combination with a wheeled plow frame of a draw bar, a pivot tension connection between the f ame and the bar, a manual control, means and a connection between such manual control means and the bar whereby the operator may raise and lower the bar, releasable means for locking such bar in. position, and lneans independent of such manual control for varying the relation between the manual control and the draw bar.

In testimony whereof, I aliix my'signature in the presence of two witnesses this 22nd day of March 1915.

JOHN WOLF.

itnesses Minnie M. Llnnnnim, Bnssin S. RICE.

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