US499290A - Buzz-planer - Google Patents

Description

(No Mmm E F GORDON BUZZ PLANER.

N. 499,290. Patented June 1s, 189s.

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UNITED STATES `PATENT OFFICE.

EDVARD F. GORDON, OF CONCORD, ASSIGNOR TO THE SOMERVSWORTH MACHINE CO., OF DOVER, NEW HAMPSHIRE.

BUZZ-PLANER.

SPECIFICATION forming part of Letters Patent No. 499,290, dated June 13, 1893.

I Application iiled April 23, 1891. Serial No. 390.088. (No model.)

Toul? whom it may concern:

Be it known that I, EDWARD F. GORDON, a

ycitizen of the United States, residing at Concord, in the county of Merrimac and State of New Hampshire, have invented certain Improvements in BuzZ-Planers, of which the following is a specification.

My invention relates to improvements in buzz planers, and the object of my invention is to provide simple and eiective means for rapidly moving the table, whereby the depth of cut may be altered or regulated together with means for locking said table fast when properly adjusted, all as will be more particularly described hereinafter.

The novel features of my invention willbe carefully defined in the claims.

In order that my invention may be the better understood, I have illustrated in the accompanying drawingsa machine of this character provided with my improvements, in which drawings- Figure l is a side view of the machine, drawn to a small scale. Fig. 2 is an enlarged detached detail view to be hereinafter referred to; and Fig. 3 is a side view, partly in section, of the parts seen in Fig. 2.

In the views A represents the ordinar7 or any suitable frame, on which are mounted in the ordinary manner, the two tables B, B and the cutter C. The forward table B is capable of a certain extent of movement lengthwise of the machine, toward and from the cutter C, and is provided on itsy under side with inclined surfaces, c, c, which engage and play over, as the table is moved, correspondingly inclined surfaces c', c', fixed on the machine frame.

In order to impart endwise movement to the table B, whereby it is raisedV and advanced toward the cutter or depressed Vand drawn back therefrom, I have provided the device I will now describe.

Projecting from the overhanging front portion A', of frame A, is a series of brackets g, three in number as herein shown, which are provided with bolt or screw holes to receive screws g.

D is a segmental spiderprovided as shown with three bolt or screw holes d', adapted to receive the screws or bolts g passing through brackets g, whereby said spider is secured td the frame A. The'spider D has a central boss d, adapted to receive a short'shaftE,

having at its upper end a collar E and an eccentric e, which engages a socket ax in a plate a, secured to the under side of the movable table'B. In order to take' up the lateral movement of the eccentric andto prevent such movement from being imparted to the 6o table B, the plate a is pivoted as shown at one end by the screw a', and has a slot a2 at its other end adapted to receive a screw a3 on the under side of the table whereby a limiting stop is provided to prevent the table from being thrown too far by the eccentric.

To the lower end of the shaft E is secured a crank or operating arm F, having an enlarged boss f, to take over said shaft and vprovided at its forward end with an upturned 7o bracket or ear f', through which passes a'set screw b. When the parts are assembled,this bracket f and its screw b, co-incide with the outer surface or periphery of the vspider D,

and as they turn about the same central point,

it is vevident that the arm F' may be turned around and set-fast by means of screw b, at any desired point. By placing the armF be. low the spider and having the bracket f projecting up over its periphery, the arm can be 8o swung entirely around the spider without its engaging with the brackets g.

The operation of the device is as follows: When it is desired to reduce the. depth of cut it is only necessary to turn the operating arm F, so that the eccentric e shall stand at its central position, as seen in Fig. 2, aligned with the shaft e, and pivot a. This reduces the cut to the minimum. To increase the cut,

the eccentric may be moved in either direc- 9o tion. The operation of this is to slide or draw the table B back from the cutter C, and by reason of the bevel of the surfaces c, c', said table will be depressed, increasing the depth of cut. The proper cut having been obtained,

the set screw b, is tightened and the parts locked rigidly together.

I do not wish to be understood as limiting myself to the particular construction and arrangement herein shown, as itis obvious that roo many variations may be made therein without materially departing from my invention.

Having thus described my invention, I claim- 1. In a planer, the combination with the frame and a cutter mounted thereon, of a table mounted on said frame in front of said cutter and having a socket formed in its under side, and a shaft vertically mounted in bearings on the frame, the upper end of which shaft has an eccentric pin which engages with the socket in the under side of the table, substantially as set forth.

2. In a planer, the combination with the frame and a cutter mounted thereon, ota table in front of the cutter movable longitudinally and vertically relatively to the cutter, a shaft jonrnaled in the frame, one end of which` is provided with an eccentric and a socket piece pivotally secured to the table at one end and provided with a transverse slot at the other end, and connected with the eccentric intermediate its ends, and a retaining device through the slot, substantially as set forth.

3. In a planer, the combination with a frame and a cutter mounted thereon, of a table in i front of the cutter, a segmental spider secured to the frame below the table, a shaft vertically journaled in the frame and extending `at right angles to the table, one end of which engages with the table and the other end is provided with an arm below the spider and which has an upturned bracket or ear extending over the periphery of the spider and a screw in said bracket bearing against the periphery of the spider, whereby the arm may be locked thereto, substantially as set forth.

EDVARD F. GORDON.

Witnesses;

ABE S. CUSHMAN, GEORGE I-I. MILLS.

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