US448388A - Walton - Google Patents

Description

(Modem G W WALTON WOOD WORKING MACHINE.

No. 448,388. Patented Mar. 17, 1891.

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GEORGE lVASHINGTON lVALTON, OF SPARTA, TEXAS.

WOOD-WORKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 448,388, dated March I7, 1891.

Application filed June 28, 1890. Serial No. 357,113. (No model.)

To aZZ whom it may concern:

Be it known that I, GEORGE WASHINGTON XVALTON, a citizen of the United States, residing at Sparta, in the county of Bell and State of Texas, have invented a new and useful \Vood-lVorkin g Machine, of which the following is a specification.

This invention relates to wood-workin g machines; and the object of the invention is to eifect improvements in devices of the same general character heretofore existing.

To this end the invention consists in the construction hereinafter more fully described and as illustrated in the drawings, in which Figure 1 is a plan view of this machine. Fig. 2 is a section on the line 2 2 of Fig. 1. Fig. 3 is a perspective detail of the feeding mechanism, and Fig. 4c is a section on the line a 4 of Fig. 1.

Referring to the said drawings, the letter F designates a suitable frame work, within which the hereinafter-described mechanism is supported and j ournaled in any suitable manner, and D is the main driving-wheel, preferably operated by a crank, as shown. This drive-wheel is keyed on a shaft S, which is cranked near the said wheel, and on said crank is mounted a feed-rod R, which extends through the frame-work and serves a purpose to be more fully set forth presently.

B is a belt, which passes over the drivewheel D, over guide-rollers G, and along the frame-work, out the front end thereof, and over the cutter. On the upper side of the frame there is but a single guide-roller; but on the lower side thereof there are two, and between these there is loosely mounted 011 the said belt 13 a frame f, which carries a weight XV, adapted to impart a sufficient tension to the belt to keep the same tight at all times.

K is a bar slotted longitudinally and provided with teeth in its slot, and P is a pawl connected to the frame and normally engaging said teeth to keep the bar distended. The front end of the feed-rod R has a lateral tongue 0', which projects through the slot under the pawl P, and also engages the teeth therein, and as the crank reciprocates this rod the bar K is fed forward step by step, one notch at each revolution of the shaft, and the pawl 1? holds it against a retrograde movement. The rod R has a loose bearing on the crank of the main shaft, so that it can move laterally, whereby its tongue 0" may be disengaged from the teeth, and in the frame F, where this rod passes therethrough, is a pin N, which when in position bears against the side of the tongue and holds it in engagement with the teeth, but when withdrawn permits the tongue to be moved laterally and disengaged. When the tongue '2" is in position beneath the tip of the pawl P and said tongue is raised, it will also lift the pawl, because it stands beneath it, as above described.

The slotted bar K carries side wings 7c,wh ich guide it in its movement where it passes through the'outer end of the frame F, and in the latter is formed a hole of the proper shape and size to permit the free passage of the bar and its wings. The wings 7c terminate just short of the outer end of the bar K, and said end is provided with a transverse hole. Through this hole is j ournaled a pin or bolt 72, upon the opposite ends of which are mounted the heads H, their inner ends next the two sides of the bar K being preferably reduced, as at b, to permit the band B to move there in. Vithin the two heads H and against the ends thereof are secured the knives or cutters proper C in any preferred manner.

The operation of this device is as follows: The head being brought against the material or article it is desired to cut or rout and the slotted bar K being retracted, a weight is attached to the framefand the wheel D is revolved. By the belt B and relative sizes of the drive-wheel and cutter one revolution of theformer causes the latter to revolve a number of times or very rapidly when the drivewheel D is turned slowly. At each single revolution of the drive-wheel-that is to say, once in about every ten to twenty revolutions of the cutter-the bar K is fed forward by the rod R the distance of one tooth, and thus the cutter is gradually embedded in the material or article being operated upon at the same time that it is rotated at a high rate of speed. To withdraw the cutter from the hole thus formed, the Whole frame can be retracted, or the tongue r of the rod R can be raised and the bar K moved to the rear.

Considerable departure can be made from the details of construction above described without altering the principle of my invention.

What I claim is 1. In a wood-routing tool, the combination, with the toothed bar, the cutter journaled in the front end thereof, a pawl engaging the teeth thereof, and a feed-rod also engaging said teeth, of a main crank-shaft, upon the crank of which the other end of said feed-rod is mounted, a drive-wheel 011 said shaft, a belt passing over said d rive-wheel and cutter, and a belt-tightener thereon, substantially as described.

2. In a wood-routing-tool, the combination, with the toothed bar, the cutter jonrnaled in the front end thereof, a pawl engaging the teeth thereof, and a feed-rod also engaging said teeth, of means, substantially as described, for imparting rotary motion to the cutter and reciprocatory motion to the feed rod, as and for the purpose set forth.

3. In a wood-routing tool, the combination, with the frame-work having a single guideroller at the top and two guide-rollers at the bottom thereof, a longitudinally-moving cutter-bar, a cutter journaled in the outer end thereof, and means, substantially as described,for feeding said bar intermittently forward, of a main shaft journaled in said frame, a drive-wheel thereon, a belt passing over said drive-wheel and cutter, the sides of the belt passing intermediately beneath the upper guide-wheel and above the two lower guide-wheels, a weight-frame having a roller supported on said belt between said lower guide-wheels, and a weight attached to said Weight-frame, the whole operating substantially as and for the purpose set forth.

4. In a wood-routing tool, the combination, with the frame-work F, the slotted cutter-bar K, sliding therein and having teeth within its slot, the cutter journaled in the outer end thereof, and means, substantially as described, for rotating said cutter, of the pawl P, connected to the frame and engaging said teeth, the reciprocating feed-rod R, sliding through said frame, and the tongue 0" on the forward end of said rod, engaging said teeth beneath the tip of the pawl P, as and for the purpose set forth.

5. In a Wood-routing'tool, the combination, with the frame-Work F, the toothed cutterbar K, the cutter j ournaled in the outer end thereof, and means, substantially as described, for rotating said cutter, of the pawl P, connected to the frame and engaging said teeth, the feed-rod R, reciprocating longitudinally through a slot in said frame, the tongue 0' on the forward end of said rod, normally engaging said teeth beneath the tip of the pawl P, and the pin N, removably inserted through said slot in the frame and holding the tongue of the feed-rod normally in engagement with the teeth, as and for the purpose set forth.

6. In a Wood-routing tool, the combination, with the cutter-bar K, having lateral guidingwings 70 extending nearly to its outer end, a bolt h, journaled through said outer end, and a frame-work F, supporting said cutter-bar, of the heads H, mounted upon the opposite ends of said bolt and having reduced inner ends I), said heads projecting beyond said wings, the belt B, leading from a suitable source of power through said frame-work F over said reduced inner ends of the heads, and the cutters 0, carried by said heads, the whole constructed and arranged substantially as and for the purpose hereinbefore set forth.

In testimony that I claim the foregoing as myown I have hereto affixed my signature in presence of two witnesses.

GEORGE WASHINGTON WALTON.

\Vitnesses:

J. Z. MILLER, T. J. HERRON.

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