US1425298A - Wood-splitting machine - Google Patents

Description

Patented Au". 8, 1922.v

2 SHEETS-SHEET luws/vrm? Ali. Treat,

WITNESSES ATTORNEYS A. R. TREAT.

WOOD SPLITTING MACHINE.

APPLICATION FILED JULY 13, 1921.

1 ,42 5298. I Patented Aug. 8, 1922.

2 SHEETS-SHEET 2.

A TTOR/VEYS 'UNITED STATES ARTHUR BALIH TREAT, or GYPSUM, KANSAS.

Team-F woons'rmr'rmo itaon nn- T aZZ whom it may concern) Be it known that LARTHUR it. TREAT, a

citizen of the UnitedStates, and alresident of Gypsum, in the county of Saline and Machines, of which the following is s ect fication. y u

This invention relates to wood splitting machines and has for its object to provide novel means whereby the ax or splitting member maybe elevated and subsequently released so as to'drop force of'gravity on.

- ment of the axis limited. However, by reato t'he'wood and thereby'split the same;

Further, the invention aims to provide novel means whereby the blow-struckby the ax is cushioned so that the machine will not be unnecessarily strained. I

A further object is to provide a machine of the class described which is efficient in use,

durable and cheap to manufacture. e Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawing:

Figure 1 is a side elevatio-nof the im-' proved wood splitting machine, 4

Figure 2 is a plan view of the same.

Figure 3 is a detail sectional view through a power transmitting wheel. I

In the drawings the numeral 5 designates a base upon which a source of power 6 in the nature of an internal combustion engine is mounted, the said engine having connection with a belt 7 trained about a power transmitting wheel 8. As illustrated inFigure 2 the power transmitting wheel 8 is mounted upon a cross shaft 9 rotatably carried by bearings10 supported by brackets 11.

A power wheel 12 is carried by a shaft 13 mounted in bearings 14 supported by the brackets or standards 11 and the said wheel 12 is provided with a laterally projecting crank pin 15 to which a flexible element 16 is connected. The flexible element 16 is trained about a pulley 17 rotatably connect ed to the upper end of a U-shaped' guide Specification of Letters Patent. 7 Pfitgnfgd Aug; 8, 1922; Application filedJ'ul y 13,1921. Serial No. 484,463. I

ence to Figure 1 it willbe observed that: the I the inner sides of the upstandingportions 19 of the guide frame 18.. H

' The action of the an is cushioned by means ends of the head 20 are provided with, I grooved bear ngmembers 25 which receive of a pair of stout coil springs 27 arranged at the lower portions of the sides 19 immediatelybelow inwardly extending stop elements 28 arrangedin thepath of travelof the head 20. When the head 20 moves downwardly it-engages the inwardly extending son of the coil springs27 the ax 20. moves downwardly to a slight extentv aft-er the .ens

- gagement of the head with the stop elements and thereby splits the wood.

The power transmitting wheel 12 is provided with a semi-circular series of laterally projecting roller pins 30 with which the teeth of a sprocket wheel 31 are adapted to be engaged whereby the sprocket wheel is operatively connected to the power wheel 12.

In operation, the sprocket wheel 31 is ro- 'tated in one direction and by reason of its engagement with the roller pins 30 causes the wheel 12 to be rotated for elevating the are When one end of the series of laterally 'proj ectingpins passes the sprocket wheel the driving connection between the wheel 31 and the wheel 12 is broken whereupon the ax 21 dropsand splits the wood. When the ax reaches the limit of its downward movement "the series of pins are again engagedwith the sprocket Wheel so that the driving conneotion between the sprocket wheel 31 and the wheel 12 is renewed.

The laterally projecting pins 30 at one end of the series of pins are yieldably held in position by means of a coil spring 36 attached to the rim of the wheel 12 by means of a fastening device 37. As illustrated in Figure 3 the yieldably mounted pins are provided 'with shanks 38 slidable through slots 39 in the rim of the wheel. This construction permits the first-pins 30 to be moved outwardly 1 to a limited degree so that the sprocket wheel will be engaged with the pins without unthe'wood placed upon the block 24 is split to the desired size by the action of the ax 21.

The operation of the ax may be stopped at any time by bringing a releasing lever to into engagement with one of the pins 30. The releasing lever 40 is operated by means of a link 41 having connection with one branch of a bell crank foot pedal a2 ar' ranged adjacent the block 24; so that the same may be readily operated.

As clearly illustrated in Figurelthe lever 410 is engaged with one of the pins after the ins 30 have moved out of engagement with the teeth of the sprocket wheel. The operator can conveniently engage the lever with the pins at the proper moment by waiting until the pins 30 have passed out of en gagement with the sprocket wheel.

A simple and. equally effective method of engaging the lever i0 with one of the pins 30 is by manually rotating the wheel 12 until the desired point is reached and then depressing the pedal a2 so that the lever l0 will be elevated and engaged with one of the pins.

hen it is desired to stop the operation of the machine without stopping the motor the foot pedal 42- is operated for bringing the lever into locking engagement with the pins '30.

I claim I l. A machine comprising a power gear, a mutilated gear having an arcuate series of teeth adapted" for engagement with said power gear, a toolhaving a flexible element connected to said mutilated gear and forming a means whereby to elevate the tool, the line of pull on said flexible element being mova-ble across the axis of said mutilated gear whereby the initial downward movement of said tool moves the arcuate series of teeth into engagement with said power gear,

member.

ARTHUR RALPH TREAT.

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