US539919A - leonard - Google Patents

Description

' S SSSSSSSSSSSS 1. s. J.. LBONARD.

v CHIP BEAKER. i i No. 539,919. PatentedMay 28, 1895.

UNITED STATES PATENT FricE.

SUMNER J. LEONARD, OF MONTGOMERY, PENNSYLVANIA, ASSIGNOR TO CELIA HOUSTON ARMSTRONG, OF SAME PLAOE.

CHIP-BREKER.

SPECIFICATION forming' part of Letters atent NO. 539,919, dated May 28, 1895.` Application filed February 15, 1895. Serial No. 538,531. (No model.)

To all whom it may concern:

Be it known that I, SUMNER J. LEONARD, a citizen of the United States, residing at Montgomery, in the county of Lycoming and State of Pennsylvania, have invented certain newV and useful Improvements in Chip-Breakers, of which the following is a specification.

My invention relates to molding and planing machinery, and consists in a novel construction of theV chip-breaker and the devices for supporting the' same. Uneven or rough boards in passing beneath the chip-breaker raise the latter suddenly from the board, and leave the board free from downward pressure whereV acted upon by the cutter. This results in the production of uneven work, and chattering, and the object of the present invention is to overcome both of these annoyances.

In the drawings, Figure l is a side elevation of my improved attachment; Fig. 2, a plan view of the same, and Fig. 3 views of the detachable bearing-foot.

A indicates the bed or frame of the machine, and O the rotary cutter, all of which may be of the usual construction. Pivoted at one end to a bracket D Secured to the main frame, is a lever E, or pivoted frame, which' carries at its outer or free end a weight F, said lever being advisably made in two parts and b, adjustable lengthwise one upon the other, and rigidly-secured together by bolt G, as shown in Figs. 1 and 2.

The lever or pivoted frame E is attached to the bracket or support D, inside the cutter, and its end portion a is preferably forked as at c to give a broad bearing to counteract any tendency of the other part of the frame or lever E to tip laterally. Part b of the frame or lever extends behind the inner end of the chip breaker, and laterally in line with the axis of the cutter, and is there broadened or fiattened as at d, and provided with perforated ears or lugs e, as shown in Fig. 1. In

i rear of the cntter, and to the rear edge of this flattened portion d is hinged or pivoted the chip-breaker H, said chipreaker being provided with a rearwardly-extending plate or flattened portion I having perforated ears J p to receive the pintle or hinge-rod K carried by the lever. The ears J are slotted vertior rock lateraliy with reference to the lever or frame which carries said chip-breaker.

In the plate I (or in the lever or frame) is seated one or more,-preferab1y three,- blocks of rubber, or springs,'L, upon which rest thelever E,--the point at which said springs or blocks bear against the lever being located in advance of the pivot of the chipbreaker.

From the foregoing it will be seen that by reason of the flexible connection between the .chip-breaker and the weighted lever, the chipof the chip-breaker, relatively to the pivoted frame or lever, I provide the latter with a pin g, Figs. 1 and 2, to engage the chip-breaker. The foot of the chip-breaker wears'rapidly and unevenly, and requires comparatively frequent renewal, and to avoid this, I make the foot vh thereof detachable, so that when worn, it may be removed and replaced by another. Ihave found that knives which are no longer serviceable upon the cutter head, may advantageously be employed as the foot, such knife or foot being shown in Fig. 3.

\ Having thus described my invention, what I claim is- 4 1. In combination with the main frame and cuttelr; the weighted lever pivoted to the main frame; a rig'id continuous chp-breaker`V pivoted to the under side of the lever by a slotted connection; and the cushion. interposed between the chip-breaker and the le- In witness whereof I hereunto set my hand in the presence of two witnesses.

' SUMNERJ. LEONARD.

Witnesses:

ROBERT F. ALLEN, J oHN B. EMBIcK.

TOO

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