US182188A - Improvement in circular wood-splitting machines - Google Patents

Description

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j CIRCULAR WOOD-SPLIT'IING MACHINE. No.18Z,188 Patented Sept. 12, 1876.

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CIRCULAR WOO-D-SPLITTING MACHINE. No.182,,188. Patented Sent.1Z,1876.

WITN ESSFS ATTORNEYS UNITED STATES PATENT Orrrcn.

CHRISTIAN O. HALL, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF HIS RIGHT TO ARCHIB ALD RIDELL, OFSAME PLACE.

IMPROVEMENT IN CIRCULAR WOOD- SPLITTING MACHINES.

Specification forming part of Letters Patent No. 182188, dated September 12, 1876; application filed January 8, 1876.

To all whom it may concern: 7

Be it known that I, CHRISTIAN O. HALL, of Chicago, in the county of Cook and State of Illinois, have invented a new and valuable Improvement in Circular Wood-Splitting Machines; and 1 do hereby declare that the following is a full, clear, and exact description of the construction aud'operation of the same, reference being had to the annexed drawings making a part of this specification, and to the letters and figures of reference marked thereon.

Figure l of the drawings is a representation of a plan view of my machine for splitting wood, and Fig. 2 is a side view of the same. Fig. 3 is an end view of the machine, and Fig. 4 a central sectional view of the out ting-knife. v

This invention relates to machines for splitting wood to form hoops, veneers, &c.; and the iuven tionconsists in the arrangement and novel construction in connection with feeding-rollers of a circular splitting-knife, and an elastic roller on the 'ar'oor of the said knife, as hereinafter more fully set forth.

In the annexed drawings, the letter A represents a preferably rectangular frame in connection with which I propose to illustrate my invention. This frame affords bearings upon its upper rails for spaced shafts B B, having pulley-wheels a a. It also affords bearings for a vertically-vibrating frame, O,in the outer end. of which is mounted a tension-roller, D. Immediately below shafts B B, and intermediately thereto, is mounted a shaft, D, having a central pulley, b, in the same vertical plane with pulleys a. a, and upon one end an actuating-pulley, c, by means of which motion is communicated to the said shaft D.

As shown in Fig. 1, shafts B B are each provided upon their contiguous ends with feedrollers d d, and their position is slightly oblique to the length of the frame, the object of which will hereinafter appear. E represents an endless belt, which passes around pulleys am on shafts B B, and pulley b on shaft D. This belt is sufficiently loose to allow a degree of slack, which will be taken up by tension-roller D, so that when motion is communicated to shaft D, the said belt will cause motion to be given to the feed-roller bearing shafts B B, and the timber placed upon a vertically adjustable table, F, will be fed to a splitting or cutting wheel, G, the construction of which will be hereinafter explained.

Shafts B B being at an angle to the frame the action of feed-rollers d 01 will be to saw the stuff to be cut into lengths against the top rail 6 of the frame, the effect of which will be to prevent the timber from being forced outward therefrom, and will cause the timber operatedupon by the circular cutting-knife, to be out into lengths of equal thickness.

The table being vertically adjustable, stuif of any thickness may be split up into lengths. The circular cutting-knife G, before alluded to, is keyed or otherwise suitably secured upon a shaft, H, having its bearings in a strong metallic plate, J, which is pivoted at fto an upright, g,- of the frame, so that the shaft H is allowed to have a degree of vertical vibration which is regulated by means of bolts h, which pass through curved slots 8 in the said plate, and clamp it immovably against the end of the frame, when the desired adjustment has been obtained, and the said clamp-bolts are set up. By this means, the cutting-knife being set at an angle to the horizontal plane, will cut one edge of the strip beveled, but when the shaft is arranged horizontally the edge out will be straight. The circular cutting-knife G, as shown in Fig. 3, is beveled outwardly, and a rubber pressurewheel, J, is jammed against its outer surface by means of a clamp-plate, K, actuated by a nut, n, applied upon the screw-threaded end of the said shaft, as shown in Fig. 3. Pressure-wheel J, during the passage of the knife through the wood, will bear down upon the wood being cut, and will hold it in position, and the said knife being adjustable in the usual manner to or from rail 6, strips of vari ous thicknesses may be obtained from a single machine. a

In case I so elect, I may use a chain in stead of a belt for driving the feed-rolls, or I may employ gears for the same purpose.

What I claim as new, and desire to secure by Letters Patent, is-

1 In a machine for splitting wood, the combination of the circular knife G, and the elas- In testimony that I claim the above I have tic pressure-roller J on the same shaft, subhereunto subscribed my name in thepresence stantially as specified. of two witnesses.

2. The shaft H, provided with the circular knife G, and elastic pressure-roller J, attached OHRIUTIAN HALL t0 the pivoted plate J, in combination with Witnesses:

the feed-rollers dd, operated by suitable mech- A. T. HEMINGWAY,

anism, as described. D. G. DUELL.

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