US1263025A - Drag wood-sawing machine. - Google Patents

Description

c. M. BLACKBURN. I

DRAG WOOD SAWING MACHINE.

APPLICATION FILED APR. 9. 1912.

1,263,025, Patented Ap'r.16,1918.

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CEARNEL MITCH BLACKBURN, OF CAVENDISH, IDAHO,ASSIGNQR OF- L. G. PETERSON", QF KENDRICK, IDAHO.

earn-THI D" ro DRAG WOOD-SAWING MACHINE.

To all whom it may concern:

Be it known that I, CEARNEL MITCH BLACKBURN, a citizen of, the United States, residing at Cavendish, in the county of Clearwater and State of Idaho, have invented certain new and useful Improvements in Drag Wood-Sawing Machines, of which the following is a specification.

My invention relates to drag wood-sawing machines.

An important object of the invention is to provide a machine of the above mentioned character, having means to secure the same to the log to be cut, for holding the log against movement, in a secure manner.

A further object of the invention is to provide means of the above mentioned 'char acter, which is simple'in construction, and

may be operated in a highly'convenient and expeditious manner.

A further object of the invention is to provide means, whereby the machine may be conveniently shifted or moved longitudinally of the log, from one cut to the other.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a side elevation of a machine embodying my invention,

Fig. 2 is an end elevation of the same, and,

Fig. 3 is a detail section taken on line 33 of Fig. 1.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 5 designates a supporting frame, comprising spaced longitudinal beams 6, provided at their forward ends with depending spikes or holding elements 7, adapted to penetrate the upper side of the log 8, to be cut.

Extending transversely. of the beams 6 is a rock-shaft 9, journaled in bearings 10, rigidly attached to the forward end of the beams 6. Rigidly connected with the rockshaft 9, near one end thereof, is a leverll, operating in proximity to a stationary quadrant 12, and equipped with latch means 13, to coact therewith, whereby the lever may be locked in the desired angular position.

Rigidly connected with the rock-shaft 9 at a point preferably equidistantly spaced from the ends thereof, i'sa crank 14, pro- Specification of Letters Patent. Patented Apr. 16, 1918.. Application filed April 9, 1917. Serial N o. 160,870. 7

extends longitudinally of the arm 16. The I arm 16is provided at its lower end with a holding dog 18, coacting with the prongs 7, yl lhiph constitute holding means to engage 'Rigidly secured to the upper end of, the crank 1 L are arms 18, having horizontal eX-' tensions 19, which carry a pin or pivot ele: ment 20, upon which is pivoted a rolleror wheel 21. This roller or wheel is adapted'to be swung downwardly for contact with the log 8, for a purpose to be, described.

Arranged upon the rear portion of the frame 5 is a prime mover, such as an internal combustion engine 22, driving a pulley 23, engaged by a belt 24, which drives a pulley 25. The pulley 25 serves to rotate a crank 26, having connection with apitman 27 suitably connected vwith a saw 28, such as a cross-cut saw. This saw engages with the log and cuts the same, as is obvious. 1 The operation of the apparatus is as folows:

The forward end of the frame 5 is placed upon the log 8, and the teeth or prongs 7 engage with the upper side of the log. The dog 18 engages upon the opposite side of the log, and by swinging the lever 11 rearwardly, the dog may be elevated with respect to the log, and the coacting dog and prongs 7 formed into the log for a desired distance, to effect a proper holding action betweenthe frame and log. The engine is now started and the saw placed upon the upper side of the log. The saw 28 is reciprocated as is obvious, and the log is cut transversely.

After this action, the saw may be removed forward end of the frame may now be by themoved, longitudinally of the log, roller 21 contacting therewith.

It is to be understood that the form of my invention herewith shown anddescribed is to be taken as a preferred example of the same, and: that various changes in thershape,

size, and arrangement .ofparts maybe resorted to without departing from the spirit ofthe invention or the scope of the subjoined claims. Having thus claim: 7

1; In a machine of the character-described, a, frame having one end thereof adapted'to be arranged near a 10g andfprovided with log engaglng means; holsting mechan sm to V elevate the said end of the frame to move the log engaging means out of engagement 'with the log, said mechanism including a rolling and extendingtransversely thereof," a crank rigidly secured to the rock-shaft and adapted for movement toward and awayfr'om the log; to be cut, a roller pivoted to the crank Copies of this patent may be obtained for described my invention, I

tolcontact with the log, means to turn the rock-shaft, log engaging meanssecured to the frame,a.prime mover arranged upon the frame, a saw to cut the log transversely, and Vdr ving-connect1ng means between the saw and prime mover.

Salinas machine of the character-describ ed,

a frame provided near one end withIlog engaging means, a'rock-shaft secured to the frame and extendingtransversely thereof, means, to turn the rock'-shaft andlockthe same in adjustment'at difierent'positions, a

crank rigi dly securedjto. the roek shaftand extending above, the same, an arm ,p voted to the crankjanddependingth'erefrom and provided'nearits lower endwith' a dog, a

roll pivotally connected with the. crank andadapted to be moved downwardly for contact with the log, a saw to cut the log transversely, a prime mover arranged upon th'eframe, and driving .connecting means between the saw and'prnne mover.

Signed at Kendrick, in the county of Lamb, and State of Idaho, this 22nd day of March, 1917."

GEARN'EL MITCH BLACK-BURN Witnesses:

FRANK W. CONDEE, RALPHVB. KUEBPER.

five cents each. by addressing-the Commissioner-ofBatenta;

Washington, 13:6?

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