US1520955A

US1520955A - Sawing attachment for tractors

Info

Publication number: US1520955A
Application number: US706481A
Authority: US
Inventors: Koeber Walter
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-04-14
Filing date: 1924-04-14
Publication date: 1924-12-30
Anticipated expiration: 1941-12-30

Description

W. KOEBER SAWING ATTACHMENT FOR TRACTORS Dec. 30, 1 924. 5 1,520,955

File-:1 April 14, 1924 2 Sheets-Sheet l W. KOEBER NG ATTACHMENT FOR TRACTORS SAWI Filed April 14, 1924 2 Sheets-Sheet 2 WIO t? 3mm- Patented Dec. 30, 1924.

UNITED s ATEs PATENT "oFF 1c E.,....]

WALTER gamma, or ALEXANDRIA, 'msso nL;

sawme arracnmmwrron mmc'rons.

Application filed April 14, 1924. Serial 110. 706,481. 1

' which the following is a' specification.

This invention relates to a sawing attachment for-tractors and is designed primarily for use in connection with the well known Fordson tractor althoughit is to be understood that by making certain modifications in structure, it may be applied to tractors of other types.

The object of the invention is to provide a simple and efiicient inexpensive structure that can be applied readily and is designed more especially for use in cutting cord wood, kindling, etc.

Another object is to provide eflicient means whereby the wood can be fed to the saw. a

A further object is to utilize bolts already in position on the tractor for attaching the device to the machine.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the com-' bination and arrangement of parts and in the details of construction hereinafter described and claimed, it beingunderstood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention. I

In the accompanying drawings the preferred form of the invention has been shown.

In said drawings- Figure 1 is a side elevation of the attachment, a portion of the tractor to which it is applied being indicated by broken lines. Fig. 2 is a plan view of the attachment. Fig. 3 is an elevation of the side of the attachment opposite to that shown in Fig. 1. v

Fig. 4 is an end elevation. Referring to the figures by characters of reference 1 designates side members which are provided at one end with an attaching strip 2 the upper and lower ends of which are adapted to be bolted to the tractor T as shown at 3. The forward portions of the side members are supported by braces 4 bolted thereto and to the top portion of the tractor as shown, these braces being preferably inclined downwardly and for wardly. A cross strip 5 is secured to the forward end'pcrtions of theside members .1 and has bearings 6 in which is journalled a shaft 7. One end of'this shaft carries a pulley 8 while theother end is engaged by,

a circular saw 9. This saw can be removed when not 1n use and mounted on a stud 1O projecting laterallyfrom-the rear end por-.

'tion of one of the side members 1 as shown in Figs. 2 and-3.

Secured to the braces 4 at the pulley side of the attachment is an arm 11 carrying an arcuate shield 12 supported concentric with the pulleys 8 and another arm 13-is pivotallyto be extended under the idler 14 and engage the pulley, idler 14 serving as a tightener,

' it resting by gravity on the belt.

The side member 1 at the saw side of the attachment has a bracket 15 to which is connected an arcuate shield 16 lapping the back ortion of the periphery of the saw as shown in Fig. 3. This shield is also preferably connected to one of the braces 4 by means of a'bracket 17.

Secured to the side members 1 below the braces 4 are hangers 18 substantially L-shaped, the lower arms 19 being extended forwardly and being connected by braces 20 extending, upwardly and attached to the side members 1. When the attachment is ber as attached a bracket 22 constituting a bearing for the shank 23 of a crank arm 24 used in starting the engine of the tractor.

Pivotally connected to the front end portion of the arms 19 is a frame made up of angle strips 25, 26 and 27, The angle strip 25 is located adjacent one of the arms 19 .while angle strips 26 and 27 extend to opposite sides of the other arm 19 and are fixedly connectedin any suitable manner soas to swing in unison although spaced apart. The angle strips 25 and 26 are connected b cross strips 28 so that all of the strips wil I swing together about their pivotal connections with the arms 19. The upper ends of the

strips

25, 26 and 27 are bent forwardly at obtuse angles as shown at 29 and secured to the

strips

26 and 27 atthe angles formed therein is a yoke 30 diverging upwardly from the said strips. The up er or lntermediate portion of the yoke is offset forwa'rdly and downwardly as shown at 31 and is adapted to receive the upper end of the leaf spring 32, the lowerportion of which is attached to the

strips

26 and 27. This-spring constitutes a shield so that the hand of a person gripping the intermediate portion 31, which constitutes a handle, Wlll be prevented from coming against the saw.

An arm 33 is attached to the upper portlon of the strip at the angle thereof-and as shown particularly in Fig. 1, this arm as well as the yoke 31 cooperating with the obtuse portions 29 to provide a wood receiving' cradle, whereby the wood to be cut will be supported transversely of the plane of thesaw. 9.

A chain 34 or the like can be used for limiting the forward swingin of the frame made up of

strips

25, 26 an 27 and their connections.

In usin this structure the saw 9 is set 1n motion a er which the wood to be cut is placed in the cradle formed by the angle 'portions 29, the yoke and the arm 33.

he operator asping the handle 31, then swings the era le toward the saw, so that the saw will be received between the upper portions of the strips'26 and 27 and cut into the wood. 7* The saw will also be received beward movement of the cradle will continue until the upper ends of the

strips

25, 26 and 27 come against the bearings of the shaft 7 and thus brought to a stop. Itwill be obvious that after the cradle is moved past the center of gravity the weight thereof and of the load thereon will be sufiicient to continue'to feed the wood against the saw so that the handle 31 can be released. However, there is no danger of injury to the hand because the spring 32 will act as a guard as will be apparent by referring to Figs. 2 and 4.

It will be noted that this attachment will not interfere with the movements of the tractor to which it is applied and importance is attached to the fact that the axle of the tractor is utilized as an abutment to assist the braces in supporting the attachment in proper position.

-What is .claimed is: 1. An attachment of the class described including connected side members and hangers, a shaft journaled on the side members, a saw carried thereby, connected members pivotally mounted on the ban ers and hav- I bers and cooperating with the angle portions of the members to form a work holding cradle, a portion of the yoke constituting the handle, said yoke being adapted to receive a portion of the saw during the sawing operation, and ashield carriedby the cradle and projecting through the yoke between the handle portion thereof and the saw.

2. An attachment for tractors including connected side members and hangers, a saw mounted for rotation, a cradle pivotally connected to the hangers and including spaced strips and a yoke connecting the strips, said yoke being adapted to receive the saw therein during the sawing operation, a portion of the yoke constituting the handle, a shield connected to the cradle and extending through the yoke between the saw and the handle portion, and flexible means for limiting the movement of the cradle away from the saw, said cradle being movable by gravity toward the saw during the completion of each sawing opjration.

3. attachment for tractors including a shaft, a saw thereon, means for supporting the shaft transversely of the tractor, hangers fixed relative to the supporting means and having forwardly extending portions, a frame pivotally connected to said portions and including spaced strips for receiving the saw therebetween, an upstanding yoke connecting the strips for receiving the saw therebetween, a portion of the yoke constituting the handle, and a guard connected to said strips and extending through the yoke between the saw and the handle portion.

4. An attachment for tractors including a shaft, a saw thereon, means for supporting the shaft transversely of the tractor, hangers fixed relative to the supporting means and having forwardly extending portions, a frame pivotally connected to said portions and including spaced strips for receiving the saw therebetween, an upstandingyokeconnecting the strips for receiving the saw therebetween, a portion of the yoke constituting the handle, a guard connected to said strips, and extending through the yoke between the saw and the handle portion, means for limiting the movement of the frame away from the saw and means cooperating with the free ends of the strip for limiting the movement of the frame toward the saw.

In testimony that I claim the foregoing as my own, I have hereto afl'ixed my signature in the presence of two witnesses.

WALTER KUEBER.

Witnesses:

' I. L. WIss,

SAM S. HILLER.