US1744201A

US1744201A - Sawing device

Info

Publication number: US1744201A
Application number: US167845A
Authority: US
Inventors: Balke Burt
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-02-12
Filing date: 1927-02-12
Publication date: 1930-01-21
Anticipated expiration: 1947-01-21

Description

Jan. 2l, 1930. B. BALKE 41,744,201

SWING' DEVICE Filed Feb. 12, 1927 2 sheets-sheet 1 Jan. 2l, 1930. B. BALKE 1,744,201

sAwING DEVICE Filed Feb; 12, 1927 -2A Sheets-Sheet 2 j? wf 50ML Patented Jan. 21, 1930 BURT BALKE, OF PHELPS, WISCONSIN SAWING DEVICE Application led February 12, 1927.

This invention relates to sawing devices and, more particularly, to an improved wood sawing device for attachment to a motor vehicle to be carried and driven thereby.

An object of the invention is to provide a wood sawing device which may be readily attached to and detached from a Ford or other type of motor vehicle.

A further object of the invention is the provision of a device of this character which employs no support other than the chassis of the motor vehicle, whereby the latter may be driven from place to place-even for long distances-with the sawing device mounted in operative position thereon.

A still further object of the invention is the provision of a vehicle carried and driven wood sawing device so arranged that power is transmitted from the vehicle motor to the saw without the use of gears.

My inventive-concept also contemplates the provision of speed control means operative directly upon the throttle valve of the carbureter, or other charge forming device for the motor, so arranged with respect to the wood sawing device that, in the normal movement of the operator in feeding wood to the saw, his body will engage against the speed control means and cause a speeding up of the motor, and as the operator moves back or away from the saw, the control means automatically moves to normal position, which permits the motor to idle, at much less than working speed, when the saw is idle.

With these and other objects in view, as will become apparent as the description proceeds, the invention may be said to consist of the novel features of construction, combinations of elements and arrangements of parts hereinafter to be fully described and pointed out in the claims.

A full and complete understanding of the invention may be obtained from a consideration of the following detailed description, taken in connection with the accompanying drawings forming a part of the disclosure, it being understood that while the drawing shows a practical form of the invention which has proven satisfactory in prac- @il tice, the latter 1a not to be eonned to the Serial No. 167,845.

showing thereof but may be changed or modified so long as such changes and modifications mark no material departure from the salient features of the invention as hereinafter fully described and claimed.

In these drawings:

Figure 1 is a view in top plan of a wood sawiin'g` device embodying the features of my invention as operatively mounted on a Ford automobile, only such portions of the automobile being shown as are necessary to illustrate the manner of association of the wood sawing device therewith;

Figure 2 is a view in side elevation of a portion of the apparatus shown in Fig. l;

Figure 3 is a view in front elevation there- Figure 4 is a sectional view taken substantiallly on the line 1-11 of Fig. 1; and

Figure 5 is a fragmentary detail view,

somewhat enlarged and partially in section, illustrating a portion of the power transmitting means.

In the accompanying drawings, I have shown only such parts of the motor vehicle Ford in this instance) as are necessary to illustrate the manner in which my novel wood sawing device is associated therewith, these parts being the motor 1, the side frame members 2, the front cross-frame member 3, the intermediate cross-frame member 4: made up of the dash brackets and dash, the crank shaft 5, and the carbureter 6.

Preferably and as shown, a frame 7 is provided for attachment to the side members 2 lar j he member 10, with theexception that in length 'to the 'Width of the vehicle chassis and is fastened at its ends to the respective members 8 and 9. The cross-frame member 12 comprises a straight bar fast at its ends to the respective frame members 8 and 9. The cross-frame member 13 is equal in length to the member 10 but is straight throu h out its length and secured at one of its en s to frame member 9 and at an intermediate point 16 to the frame member 8. As best shown in Fig. 1 of the drawing, the side frame member 8 is bent at right angles as at 17 and extends to the side member 9, its end 18 being bent backward in parallelism with the side member 9 and made fast thereto. The side member 9, forwardly of its point of connection to the side member 8, is bent at right angles inwardly across the frame and then reversely bent as at 19 so that the pair of spaced transverse arms thus formed provide a supporting platform 19 for material being cut by the saw, as will be hereinafter ex lained.

rackets 20 are secured to opposite sides of the cross-frame member 4 for maintaining theY side members 8 and 9 down against the respective side members 2 of the automobile chassis. As shown, these brackets include a securing portion 21 and a

U-shaped portion

2,2 extending obliquely from the securing portion in order that the lower end of an elongated thumb screw passing through and having threaded connection in the spaced arms of the U-shaped portion of the bracket may engage the top of the frame member 8 or 9, as the case may be.

It is desirable that a fiexible driving con. nection between the crank shaft of the motor andthe saw be provided which may be readily made and disconnected. As shown, this resuit is accomplished by the employment of a so-called universal joint 24, one flexible plate 25 of which is bolted to a fan-pulle 26 fast to the crank shaft 5. The fan pul ey 2G is preferably made of solid steel and is substituted for the usual fan pulley when the sawi device is first associated with the vehicle an thereafter remains on the crank shaft 5 to serve as a combination fan pulley and connecting element between the motor and the saw. A second flexible disk 27 of the universal joint 24, which carries a shank 28 provided centrally with a square driving aperture 29, is bolted in the usual manner to the plate 25. A bearing 3() is mounted centrally on the cross-frame member 3 of the motor vehicle chassis and supports a short shaft 31 which is formed with a squared end 32 for engagement within the driving aperture 29 and has its other end made fast to flexible disk 33 of universal joint 34. The fan pulley and universal joint 24 need not be removed from the shaft 5 and are preferably not disturbed when mounting the apparatus on or renglovinY it from the automobile. It is to be observed, in this connection, that the squared end 32 of shaft 31 is of such size that it will readily pass through bearing 30. Preferably and as shown, the bearing includes a ball-bearing element 35, as best shown in Fig. 5.

A second short shaft 36 is journaled in alinement with the shaft 31 by bearings 37 and 38 mounted on the offset portions of the respective cross-frame members 10 and 11 and carries on its inner end a flexible disk 39 of the universal joint 34 which is connected in the usual manner to disk 33. A driving pulley 40 is carried by the shaft 36 intermediate the cross-frame men'ibers 10 and 11 and the forward end of the shaft 36 is provided with oppositely extending pins 41 for engagement with a crank 42 for rotation thereby to start the motor 1. A shaft 43 is journaled in bearings 44 and 45 mounted, rsepectively, on the laterally extendingportion 15 of cross member 14 and on the laterally extending portion 46 of cross member 13. On this shaft in alinement with thc guide pulley 4() is mounted a second pulley 47 which is designed to be driven by a belt 48 passing around the two pulleys,

A circular saw 49 is made fast to the shaft 43 adjacent the end thereof, to rotate therewith by means, in this instance, of a fixed shoulder or collar 50 integral with or fast to shaft 43 and engaging the inner side of the saw, and a washer 51 engaging the outer side of the saw and maintained in position by means of a machine-screw 52 passing through the washer and saw and threaded into the shaft 43. It will be observed that the saw 49 is carried' by the shaft 43 in such a position that it will rotate in a plane substantially midway between the adjacent transverse portions of the respective side members 8 and 9. The starting crank 42, as shown, has suitably bearing as at 52 on a depending bracket 53 fast at its upper ends to the material supporting platform 19.

In order that the speed of the saw may be readily controllable by the operator, an elongated lever 54 is pivoted intermediate its ends, as at 55, to the frame member 9 and is connected at its forward endv by a rod or wire 56 to the throttle lever 57 of the carburetor (i. A spring 58 is provided on the throttle lever 57 which normally tends to maintain the throttle almost closed. The other end of the lever 54 is. disposed in such a position with respect to the normal operators position that it may be pressed inwardly by the body of the operator and thus speedthe motor up as the operator moves the work forward into engagement with the saw. As shown, a second pulley 59 is carried centrally by the shaft 3 in order that other apparatus may be driven therefrom, if desired.

From the foregoing, it will be observed that the entire wood sawing apparatus, as a unit, may be quickly associated in operative position with the motor vehicle by merely alining the side members 8 and 9 with the respective side members 2 of the motor vehicle chassis, at Which time the shaft 31 Will be in alinement With the crank shaft 5 of the motor, and then moving the apparatus invvardly until the inner ends of the side members S and 9 engage under the respective thumb screws 23 Which may be tightened down to secure the frame in position, it being understood that the square shouldered end 32 of the shaft 3l must be turned into alinement with the square aperture 29 as the apparatus is moved inwardly onto the vehicle chassis and that the connection 56 must be made between the lever 54; and throttle lever 57 in order that the operator may control the speed of the saw from his position in front thereof.

What I claim is:

l. A sawing attachment for motor vehicles comprising a pair of elongated frame members for attachment to the respective side frame members of a motor vehicle, a plurality of cross-frame members fast adjacent one end to one of the elongated frame members and extending to and secured to the other elongated frame member, certain of the crossframe members being olfset to constitute depending bearing supports, bearing mounted on the bearing supports, a drive shaft journaled in the bearings, means carried by the shaft for operatively connecting it to the Crank shaft of the motor vehicle, a pulley carried by the drive shaft, certain of said crossframe members extending past one of the elongated frame members to constitute shaft supports, bearings on the shaft supports, a second shaft journaled in the last-mentioned bearings, a pulley carried by said second shaft in alinement with the aforementioned pulley, a belt operatively connecting said pulleys, and a circular saw mounted adjacent the forward end of said second shaft.

2. A sawing attachment fbr motor vehicles comprising a pair of elongated frame members for attachment to the respective side frame members of a motor vehicle, a plurality of cross-frame members fast adjacent one end to one of the elongated frame members and extending to and secured to the other elongated frame members, certain of the cross-frame members being offset to constitute depending bearing supports, bearings mounted on the bearing supports, a drive shaft ournaled in the bearings, means carried by the shaft for operatively connecting it to the crank shaft of the motor vehicle, a pulley carried by the shaft, certain of said crossframe members extending past one of the elongated frame members to constitute shaft supports, bearings on the shaft supports, a second shaft journaled in the last-mentioned bearings, a pulley carried by said second shaft in alinement with the aforementioned pulley, a belt operatively connecting said pulleys,

and a circular saw mounted adjacent the forward end of said second shaft, one of said elongated frame members being formed to constitute a material support adjacent the saw.

3. A sawing attachment for motor vehicles comprising a frame for mounting on the chassis of a motor vehicle, said frame including side-members and cross-frame members, a driving shaft mounted on the frame in position to aline with the crank shaft of the motor vehicle when the attachment is operatively mounted thereon, means associated with the shaft for connecting the latter to the crank shaft of the motor vehicle, a second shaft journaled on the frame, pulleys mounted on said shafts in alinement, a belt passing about the pulleys to operatively connect the shafts, and a circular saw carried by said second shaft, one of the side members of said frame being so formed as to provide a material supporting platform adjacent the saw.

In testimony whereof I my signature.

BURT BALKE.