US697497A - Sawing-machine. - Google Patents

Description

No. 697,497. Patentad Apr.-|5, I902.

G. C. KNAPP.

SAWING MACHINE.

(Application filed June 29, 1901.)

(No Model.) 3 Sheets-Sheet I.

. 6: C. Imp a. l/vi/inmssazs I No. 697,497. Patented Apr. I5, I902.

G. C. KNAPP SAWING MACHINE.

(Application filed Jugs 29, 1901.)

3 Sheets-Sheet 2.

(No Model.)

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a. c. KNAPP. SAWING MAGHINE.

(Application filed June 29, 1901.)

Patented Apr. l5, I902.

(No Model.)

3 Shea ts--Sh.eet 3.

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UNITED STATES PATENT O FICE.

GILMAN CLIFFORD KNAPP, EUREKA, CALIFORNIA.

SAWING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 697,497, dated .April 15, 1902.

Application filed June 29, 1901- Serial No. 66,590. (No model.)

To all whom, it may concern.-

Be it known that I, GILMAN CLIFFORD KNAPP, a citizen of the United States, residing at Eureka, in the county of Humboldt and State of California, have invented a new and useful Sawing-Machine, of which the fol- This invention relates generally to sawingmachines, and more particularly to one for sawing shakes or thin strips of wood.

The object of the present invention is to provide an appliance for sawing-machines by means of which the blocks from which the shakes are to be sawed can be quickly and easily fed to the saw, and a still further object is to provide improved mechanism for dropping the remnant at the proper time and also feeding a new block to the machine.

With these various objects in view the in.- vention consists in the peculiar construction of the various parts and their novel combination or arrangement, all of which will be fully described hereinafter and pointed out in the claims.

In the drawings forming part of this specification, Figure 1 is a side view of a machine providedwith myimproved appliance. Fig. 2 is a top plan view of the same. Fig. 3 is a detail perspective view of the appliance. Fig. 4 is a detail elevation illustrating the means for operating the feed-roll from the carriage feed-works. Figs. 5 and 6 illustrate details of construction, and Fig. 7 is a detail plan view of the guard for the grooving-saws.

In carrying out my invention I employ any desired operating mechanism A for moving the carriage B back and forth upon the track 0 for the purpose of bringing the block of wood into contact with the saw D, which is also operated in any suitable manner. The purpose of my invention is to laterally feed the block of wood to be sawed, so that at each reciprocation of the carriage the block will be moved a slight distance laterally, so that when next presented to the saw the requisite amount or strip of wood willbe taken off.

B indicates skids or rolls upon which the block to be sawed is placed.

E indicates the feed-rolls, which are mounted upon the shafts F, journaled in suitable brackets F and F respectively, the bracket F being connected to an arm G, which extends across one end of the carriage and is fixed, While the bracket F is attached to an arm H, which extends also across the opposite end of the carriage, but is pivoted at H and has a spring H connected therewith, the purpose of said spring being to normally throw the bracket F and roller E inwardly. Each shaft F has a ratchet-wheel I and 1 upon its upper end, and levers K and L are also mounted,respectively, above the said ratchet-wheels, the lever K carrying a pawl K, which ongages the ratchet I, while the lever L carries a pawl L, which engages the ratchet I.

The levers K and-L are connected by means of a connecting-rod M, so that the said levers move in unison, and consequently the pawls, ratchet-s, and feed-rolls. The lever K has a pitman N connected thereto, the opposite end of said pitman being pivotally connected to a lever 0, said lever being pivoted at O to a bracket 0 and has its lower end 0 depend ing into the carriage and into the path of a roller P, mounted upon the end of a rocking lever P, pivoted or journaled upon the shaft P arranged at the end of the carriage, the said rocking lever being so arranged that it is moved up and down at each reciprocation of the carriage, and the roller P coming in contact with the beveled end 0 of the lever 0 causes the same to rock or vibrate, and consequently operate the feed-rolls, a coilspring Q being connected to the upper end of the lever O for the purpose of returning it when the roller P descends. It will thus be understood that the block to be sawed is cut the exact distance to fit snugly between the feed-rolls and is placed upon the skids or rolls against the face of the saw. Upon the reciprocation of the carriage the feed-rollers will act to feed the block laterally the requisite amount, and these operations will continue until the block has been nearly consumed. When the block has been sawed to this extent, it becomes necessary to drop the remnant and place a new block upon the carriage.

I will now describe the mechanism for dropping the remnant. R represents a rod arranged adjacent to the forward end of the machine and carrying a roller R at its upper end, the lower end of said rod being connected to the foot-treadle R By pressing combination with the vertically-arranged upon the treadle R the rod R is projected vertically, moving the roller R into such position that it will contact with the free end H of the arm H. As soon as the end H contacts with the roller R the arm is turned upon its pivot H and throwing the feed-roller out of contact with the block, releasing it at that end. Simultaneous with the withdrawal of the feed-roller at that end I operate a disengaging-plate S, which moves the opposite end of the block away from the opposite feed-roll, said plate being rigidly attached to a rod S, which is connected to the lower end of a rocking lever S which in turn is connected to the arm H by means of a link S so that when the arm H is operated by means of the roller R and rod R the plate S will be operated in unison therewith. The operation of these parts immediately drops the block, and another block can then be inserted between the feed-rolls and placed against the face of the saw, the spring H serving to return the feedrolls and the various parts to their normal positions the moment the block is released.

Having thus fully described myinvention, what I claim as new, and desire to secure by Letters Patent, is

1. In a sawing-machine attachment, the

feed-rolls, of the means arranged upon the carriage for operating the said feed-rolls upon the reciprocation of said carriage, together with means for moving one of the rolls out of engagement with the remnant of the block and simultaneously operating a disengagingplate for disengaging the block from the other feed-roll, substantially as described.

2. In a sawingmachine attachment, the combination with the feed-rolls, of the brackets and arms carrying the said feed-rolls, one of said arms being pivoted and normally held in position by means of a. spring, the ratchets, pawls, levers and connecting-rods, the pitman and rocking lever, the disengaging-plate, the rod to which said disengaging-plate is attached, the rocker-arm connected to the pivoted feed-roll arm by means of a link, and the vertically-movable rod adapted to be projected into the path of the free end of the pivoted arm for the purpose of simultaneously disengaging the said feed-roll and operating the disengaging-plate, substantially as and for the purpose described.

GILMAN CLIFFORD KNAPP.

Witnesses:

JOSEPH P. TRACY, HAROLD I'I. BARNARD.

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