US439373A - Tenoning-machine - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

, B. F. BARNES.

IENONING ISIIAGHINE.

No. 439,373. Patented Oct. 28, 1890.

(No Model) 7 E. F BARNES 2 Sheds- Sheet 2. TENONING MACHINE. No 439,373. Patented Oct. 28, 1890.

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UNITED STATES PATENT OFFICE.

ELBRIDGE F. BARNES, OF NEW HAVEN, CONNECTICUT;

TENONlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 439,373, dated October 28, 1890.

Application filed June 2&, 1889- To all whom it may concern.-

Be it known that I, ELBRIDGE F. BARNES, residing at New Haven, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Tenoning-Machines; and I do declare the following to be a full, clear, and exact description of the same, reference being had to the. accompanying drawings, which form a part of this specification.

My invention relates to an improvement in tenoning-machines, the object being to produce a compact and convenient machine YI-S adapted for tenoning, rabbetin g, and kindred operations.

With these ends in view my invention consists in certain details of construction and combinations of parts, as will be hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a plan view of a machine embodying my invention. Fig. 2 is a broken view thereof in side elevation. Fig. 3 is a similar view thereof in rear elevation, and Fig.4 is a view in vertical transverse section on the line a b of Fig. 1.

As herein shown, the machine is provided with a main shaft A, carrying upon its outer end a hand-wheel B and extendinginwardly under the machine-bed O to a long narrow longitudinal opening D formed therein and receiving a vertical circular saw E, mounted upon the inner end of the said shaft, which is itself mounted in bearings F F, secured to the said machine-bed. A gear-wheel G, mounted on the said shaft, meshes into a gear-wheel H, located below the machine-bed and turning loosely on a horizontal stud I, projecting from a vertical frame J, set into an opening in the machine-bed. The said wheel H has both spur and bevel teeth, the latter meshing into a horizontal bevel gearwheel K, having a collar L, carrying a setscrew M, and movably secured to the lower end of a vertical shaft N, mounted in the said frame J, and provided at its upper end with I a horizontal circular saw 0, whereof the teeth extend into close proximity with those of the vertical saw E, before mentioned. The said vertical shaft is suspended in the said frame Serial No. 315.441. (No model.)

by a collar P, secured to it by a screwQ, so that when the screw is turned and disengaged from the shaft the same may be vertically adjusted through the collar, the adj ustment of the bevel gear-wheel K being con formed to that of the collar. By the means described the horizontal saw may be vertically adjusted in its relation to the vertical saw and let down to preserve its right relation thereto as the same wears awayin use. The said frame J is provided with a horizontal arm R, resting upon the machine-bed and having two elon gated slots S, receiving screws T T, by means of which it is secured to the bed with a capacity for transverse adjustment over the same, so that it may be moved toward the vertical saw, whereby the wearing of the horizontal saw may be compensated for. Under the described construction the two saws rotate in opposite directions, and hence toward each, and so co-operate in making very smooth clean vertical and horizontal cuts, respectively. The other end of the main shaft A is provided with a bevel gear-wheel U, meshing into a similar gear-wheel V, secured to the adjacent end of an intermediate shaft W, mounted in ahorizontal frame 0 hung at one end upon a pivot X,.entering the edge of the machine-bed, and having an elongated slot Y, formed in its opposite end, to receive-a stud Z, eccentrically connected with a manual lever A, pivoted to the machine-bed just within the edge thereof by a pivot B. The said shaft W is provided at its rear end with a worm-gear O,which is engaged with and disengaged from a gear-wheel D, mounted upon the adjacent end of a feed-shaft E, mounted in bearings F F, extending rearwardly from the end of the machine-bed. By throwing the manual lever A forward the shaft W is lifted, and its worm-gear O engaged with the wheel D, whereby the feed-shaft is rotated. On the other hand, by throwing the manual lever back, as shown by Fig. 2 of the drawings, the gears O and D are disengaged and the feedshaft cut out, so to speak, from rotation. The said feed-shaft has feathered upon it a spurwheel G, which is engaged by a straight feedrack H, secured at its forward end to a carriage I, dovetailed to a guideway J, mounted upon the machine-bed, extending with the length thereof and transversely adjusted thereupon by means of an adj ust-ing-bar K, secured to it at a right angle by screws L L, the said arm being let into a transverse recess M, formed in the machine-bed and carrying an adjusting-screw N, having a handknob O and threaded into the machine-bed, so that when it is turned it moves the guideway and the carriage transversely over the same. A guide P, secured to the rear end of the guideway, assists in holding the rack in place, especially when the same is carried well forward, the rack playing back and forth through it. An upright lumber-holder Q, having a foot R, is secured by means of the latter to the inner edge of the carriage, by means of which it is moved longitudinally toward and away from the saws. It is provided with a facing S of wood, and at its rear end with a projecting strip T of wood, forming a straight-edge for the stock to be trued against. It is also provided with a rearwardly-projecting arm U, having a horizontal slot V, receiving the bow of a yokeshaped horizontal two-armed clamp WV, one arm whereof stands in front of the lumberholder and is provided with a pivotal clam ping-arm X, its other arm being provided with a screw .Y, having a hand-knob Z, and located in line with the pivotal clamping-arm, which is drawn by it up against the lumber in the holder, which is embraced by the clamp. The said clamp is transversely adjustable in the slot V to accommodate stock of varying thickness. A vertically-adjustable gage A secured to the rear edge of the table by a clamp B assists in rightly placing the lumber in the holder and determines the vertical position of the lumber with reference to the saws. A guard D screwed upon the machinebed, covers and protects the gear-wheel H.

WVhile my improved machine is particularly designed for tenoning, it is also well adapted for halving, rabbeting, and various other sawing operations.

If desired, the particular form of feeding mechanism herein shown may be replaced by any other suitable means for the purpose, and I would have it understood that I do not limit myself to the exact construction and combination of parts herein shown and described, but hold myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of my invention.

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

1. In a sawing-machine, the combination, with a main shaft, of a circular saw secured thereto to run in a vertical plane, a vertical shaft geared to the said main shaft, a circular saw secured to the vertical shaft to run in a horizontal plane and cooperate with the vertical saw, and a lumber-holder adapted to be moved in line with the vertical saw and to be connecting the two shafts, a lumber-holder 1 I adapted to be adjusted laterally in respect of the vertical saw, and means for moving the said holder in line therewith, substantially as described.

3. In a sawing-machine, the combination, with a machine-bed, of a main shaft, a circular saw secured thereto to run in a vertical plane, a laterally-adj ustable frame located in an opening formed for it in the machine-bed. and extending above and below the same, a vertically-adjustable shaft mounted in the said frame, a saw mounted on the shaft last mentioned to run in a horizontal plane, gearing connecting the two shafts and consisting of a gear-wheel mounted on the main shaft, a gear-wheel mounted to turn loosely on a horizontal stud carried by the lower end of the said frame and having both spur and bevel teeth, a bevel gear-wheel adjustably mounted upon the lower end of the vertically-adjustable shaft, a lumber-holder, and means for driving the same, substantially as described.

4. In a sawing-machine, the combination,

with a main shaft, of a circular saw secured thereto, a vertical shaft and a saw secured horizontally thereto, a feed-shaft, a horizontal vertically-movable frame, an intermediate shaft carried by such frame and extending between the main and feed shafts, and means for operating the said frame to cut in and cut out the intermediate shaft, substantially as set forth.

5. In a sawing-machine, the combination, with a main shaft, of a circular saw secured thereto to run in a vertical plane, a vertical shaft geared to the main shaft, a saw secured to the vertical shaft to run in a horizontal plane to co-operate with the vertical saw, a feed-shaft provided at one end with a gearwheel, a lumber-carrier connected therewith to move in line with the vertical saw, a horizontal frame pivoted to the machine-bed, an intermediate shaft journaled in the said frame and geared at one end to the main shaft and provided at one end with a wormgear, and a manual lever eccentrically connected with the said frame for lifting its worm-gear into mesh with the said gear on the feed-shaft and for depressing it to discon nect the said gears, substantially as described.

6. In a sawing-machine, the combination, with a vertical saw, of a horizontal saw to cooperate therewith, a lumber-carrier adapted to be laterally adjusted to the vertical saw, a feed-shaft, and means for actuating the said carrier in line with the vertical saw from the said shaft and including a spur-wheel movably mounted thereupon to accommodate the lateral adjustment of the carrier, substantially as set forth.

7. In a sawing-machine, the combination, with a vertical saw of a horizontal saw to co operate therewith, an upright lumber-holder,

means for moving the same in line with the vertical saw, and a yoke-shaped horizontal clamp mounted in the said holder and embracing the same, substantially as set forth.

8. In a sawing-machine, the combination, with a vertical saw, of a horizontal saw to cooperate therewith, an upright lumber-holder provided with a horizontal slot at its rear end, means for moving the same in line with the vertical saw, and a yoke-shaped clamp located in the slot of the said holder, which it embraces, and provided at one end with a pivotal finger and at the other end with an adj Listing-screw, substantially as set forth.

9. In a sawing-machine, the combination, with a vertical saw, of a horizontal saw to cooperate therewith, a carriage extending in line with the vertical saw, a guideway for the carriage extending in the same direction and laterally adjustable, a lumber-holder secured to the carriage, a horizontal bow-shaped clamp to co-operate with the lumber-holder, and means for driving the carriage with the saws, substantially as described.

10. In a sawing-machine, the combination, with a vertical saw, of a horizontal saw to cooperate therewith, a carriage, a laterally-adjustable guideway therefor extending in line with the vertical saw, a rack secured to the rear end of the carriage, a feed-shaft, and a spur-wheel movably mounted thereupon and engaged with the rack, substantially as set forth.

11. In a sawing-machine, the combination,

with a main shaft carrying a vertical saw, of a vertical shaft carrying a horizontal saw and driven from the main shaft, a feed-shaft, means for coupling the same with the main shaft and uncoupling it therefrom at pleasure, a carriage, a laterally-adjustable guideway therefor extending in line with the vertical saw, a rack secured to the carriage, a spur-wheel movably mounted upon the feedshaft and engaged with the rack, a lumberholder secured to the carriage, and a yokeshaped clamp mounted in the said holder, substantially as set forth.

12. In a sawing-machine, the combination, with the machine-bed, of a vertical and a horizontal saw, a lumber-holder, a carriage therefor, a movable guideway for the carriage mounted upon the machine-bed, an adj ustingarm secured to the under face of the guideway and setting into a slot formed in the machine-bed and projecting at its outer end beyond the adjacent edge of the same, and an adj Listing-screw mounted in the projecting end of the said arm and entering the machine-bed, which forms a purchase for it in laterally moving the guideway, and hence the carriage and lumber-holder, substantially as described.

In testimony whereof I hereby sign this specification in the presence of two subscribing witnesses.

ELBRID GE F. BARNES.

Witnesses:

CHAS. B. SHUM'WAY, HARRY A. HALL.

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