US696537A - Tenoning-machine. - Google Patents

Description

2 U m h p A d e t n e t a P S E N on A B A 7 3 6 9 6 0 N TENONING MACHINE.

{Application filed Dec. 23, 1901.)

(No Model.)

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JAMES A. BARNES, OF OSHKOSII, XVISGONSIN.

TENONING ii/IACHINE.

SPECIFICATIQN forming part of Letters Patent No. 696,537, dated April 1, 1902.

Application filed December 23, 1901. Serial No. 86,872. (No model.)

To all whom it may concern:

Be it known that I,JAMES A. BARNES, a cilizen of the United States, residing at Oshkosh, in the county of Winnebago and State of Wisconsin, have invented certain new and useful Improvements in Tenoning-Machines, of which the following is a specification.

My invention has relation to tenoning-machines, and especially to the double-end tenoningmachines; and itconsists of novel and simple means of driving the several cutterheads and a simple means of adjusting the cutter-heads with the work.

The object is to provide a machine with a minimum number of working parts and so placing them that the noise and vibration will be reduced to a minimum and to produce a complete machine in which a single belt will serve to drive the cope-cutter heads, the tenoning-cutters, and the saws and avoiding the troublesome quarterturn belts commonly used on these machines, as hereinafter described and claimed. I

In the accompanying drawings, Figure 1 is an end elevation of the machine; Fig. 2, a rear view; Fig. 3, a section taken through the standard at 00 3 Figs. iand 5, details of the cope-cutter head.

The numeral 1 is the bed of the machine, which consists of a box-like casting having slides or ways 2 planed its entire length and has the driving-shaft 23 j ournaled therein. A driving-pulley 24 is secured to the shaft. A base 3 is mounted on the ways on the bed. In Fig. 1 the section through the base and bed is taken at a b, Fig. 2. Mounted on the base is a vertical standard 4, which is releasably secured thereto, as it is necessary at times to remove the tenoning cutter-heads 13' for sharpening the knives or substituting different ones with new set-knives 1%. Heretofore it has been necessary to remove the presser-frames 39 in order to leave room to remove the top tenoning cutter-heads; but I obviate this by using the separate standard for the presser-frames and by making the standard 4-, which carries the mounted tenoning cutter-heads, movable on the base 3. There are several ways of holding the standard 1 to the base and having it capable of longitudinal movement on the base. I prefer to use a dovetail slide; but any form may be used. The said standard 4 has parallel slides or ways 6 on its front side. A carriage 5, with slides to fit those on the standard and made, preferably, of the form shown, has the horizontal bearings 12 cast with it. A tenoning cutter-arbor 13, carrying the knives 14, is journaled in the said bearings and has the driving-pulley 16' secured thereto. A lug 9 is secured to the inner side of the main cutterhead carriage or forms a part of it and has the hole 11 tapped through near the end. A long screw 10, journaled in the top of the standard 4, extends down through the tapped hole 11 for the purpose of raising and lowerin g the main cutter-head carriage. A removable crank 25 is fitted to the top of the screw for the purpose of turning it by hand. It will be seen that there are two main cutter-head carriages mounted on the standard, one above the other, and the description of one will sufiice for both, as they are both substantially alike. A screw 10 is provided for each one, so they may be moved independent of each other. The main cutter-head carriages have the sides 7 and have the vertical ways 8, as shown, on the rear side of the said main cutter-head carriages. Ooper-carriage 15 is mounted on the said ways 8 and capable of vertical movement thereon and is held in position and moved by a screw extending down through the main cutter-head carriage 5 and through a lug (not shown) in the coper-carriage 15. A bevel-gear 22 is secured to the top of the said screw, and another bevel-gear 22, meshing with it and supported on a shaft 21, and has a hand-wheel on its outer end for convenience in making the vertical adjustments. Small lugs 26 are provided to support the shaft 21. s The main cutter-head carriage 5 has slides 28 planed horizontally or at right angles to the slides 8, and a frame 27, fitted to the'said horizontal slides 28, and is cast, preferably in the form shown, with the journals or bearings 18 and the vertical bearings 19. A shaft is journaled in the bearings 18 and has the pulley 16 secured thereon between the boxes 18 and a bevel-gear 29 secured to the extending end of said shaft. A cope-cutter arbor 30 is journaled in the vertical bearings 19 and has a bevel-gear 29 secured thereon between the said bearings 19 and adapted to mesh with the other one, 29. The cope-arbor extends through the journals 19 a short distance. On one is secured a cope-cutter head 17 of the form shown, Figs. 4 and 5. On the other extending end is secured a balance-wheel 31,

which is for the purpose of steadying the motion of the cope-cutter heads and by utilizing the momentum stored in the balancewheel thereby lessening the wear and noise of the gears, and thus, owing to a less jerky motion of the knives,the cut will be smoother. A screw extending through the carriage and through a lug in the rear (not shown) has the hand-wheel 32 secured to the outer end for the purpose of adjusting the frame 27 horizontally. 'It will therefore be seen that the cope-cutter carriages can be finely adjusted vertically or horizontally, if necessary, after the main cutter-head carriage 5 has been set and the main tenoning cutter-heads adjusted.

I have invented further improvements in the supporting of the coper-carriages by mounting them on the main cutter-head carriages, whereby when the main cutter-head carriages are moved vertically the coper-carriages move positively with them. The cope-cutter head, Figs. 4 and 5, has the body 17 bored to fit the arbor and held thereon by a set-screw 33. The knives 34 are of the form shown in Figs. 4 and '5. Fig. 4 is a section through 0 cl, which clearly shows the form of the body 17. A pro jecting rib 35 is formed near one side and a channel to fit the knife 34 near the other side. A hole is tapped at 38 to receive a cap-screw 37. The knife is set in place, and a clampingpiece 36 is made to fit the curvature of the knife and rib 35 and has a hole through the middle to receive a cap-screw. The piece 36 is placed to rest on the knife and rib 35 and is clamped there by means of the cap-screw 37. When it is desired to adjust the knives 34, the screw 37 is loosened and the knives moved as desired and the screw tightened, which securely holds them in place. This is an advantage over former methods of slotting the knives, as it is only necessary to use a flat piece of steel for the purpose, bent to fit over the body 17 It is necessary in a machine of this class to provide a means to firmly hold the work down on the chain while the cutters are in action. For this purpose I have shown a presserframe 39, which maybe of ordinary construction; but I have shown an improved method of supporting same. support 40 is secured to the base 3 in front of the other standard4 andis of the form shown and has the extending or overreaching part 41, which has vertical slides 42 planed therein. The presser-frame is mounted and supported in these slides 42 and is adjusted vertically by the hand-wheel 43, which operates a screw similar to the other adjusting-screws.

A standard or presser- Another purpose of my invention is to provide a means for supporting the presser 39 whereby it will not in any way come in contact with the vertical standard 4, and thus avoiding anyliabilities of springing or throwing the several cutter-heads out of their fine adjustment, as the presser is subjected to a considerable strain when the machine is in operation, and I therefore have designed the separate standard for the presser frame, which has a form to better support the strains subjected to it and at the same time will not interfere with any of the delicate parts. The standard 40 has ways or slides 44 planed vertically on the side shown. A carriage 45 is mounted thereon and has the adjusting-screw 47 connected to it and to a stationary lug on the standard, the function of which is to raise and lowerthe carriage. The said carriage has slides planed horizontally in it, as shown, and a bracket 46 fitted thereto. The bracket has the carriages or boxes 48 of the form shown. A saw-arbor is journaled in the said bearings and has a driving-pulley secured thereto and a saw attached to the extending end for cutting off the material to an exact length. The

said bracket can be adjusted horizontally by the hand-wheel 49, which is attached to a screw similar to the other adjusting-screw, which will be evident to others skilled in the line in which it pertains.

The difierent cutter-heads may be driven by independent belts; but I have shown an improved method of driving the main tenoning cutter-heads and copers and saw with a single belt. The belt is wrapped on the pulleys, as shown, which runs all the cutters in the right directions. It is necessary to have a means for taking up the slack in a belt of this kind, and I have therefore utilized the saw-arbor for the combined purpose of driving the saw and for tightening the belt, as it is not required to have the saw in any exact vertical position. This method of driving is very effective and causes less trouble than machines having several belts to accomplish the same purpose. The feed-chain here shown is the subject of a patent assigned to me, No. 329,007, October 27, 1885; and I do not claim a machine broadly; but

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

1. In a tenoning-machine the combination with a standard having vertical slides or ways on one side a vertically-movable carriage for the tenoning cutter-heads mounted on said slides or ways and extending around the standard having vertical slides or ways opposite those on the standard, a second vertical movable carriage mounted on the slides of the said first carriage and having horizontal slides or ways thereon, a coper-arbor support fitted to the said horizontal slides and means for moving the respective carriages and arbor.- upport in their paths for the purpose set orth.

The combination in a tenoning-machine of a standard having vertical ways or slides on one side, of a carriage mounted thereon hav ing a tenoning cutter-arbor j on rnaled thereon and having its sides extending around the standard, vertical slides or Ways on the rear extending sides of said carriage, another carriage mounted on said slides orways and having horizontal slides therein, a frame havingvertical and horizontal journals fitted to the horizontal slides, a horizontal shaft j on rnaled in the said frame having a pulley mounted thereon and a bevel-gear secured to one end thereof, a vertical shaft mounted in the vertical journals having a bevel-gear secured thereto adapted to mesh with the other said bevel-gear and means for rotating the horizontal shaft for the purpose set forth.

3. In a tenoning-machine the combination with standards, vertically-movable carriages mounted thereon and means for sliding said carriages in their paths, vertically-movable frames mounted on the said carriages having horizontal slides therein, brackets or j ournalsupports mounted in said horizontal slideshafts, journaled horizontally in the said brackets and having pulleys mounted thereon each shaft having a bevel-gear secured to one of the ends thereof, cope-arborsjournaledvertically in the brackets and having a bevelgear secured to each arbor adapted to mesh with the other orhorizontally-mounted bevelgears and means for rotating the horizontal shaft for the purpose set forth.

4. In a tenoning-machine the combination,

with a standard, a verticallymovable carriage mounted thereon, having a screw for moving same, a second carriage mounted on the first carriage and adjustable vertically thereon, by means of a screw, a horizontallymovable frame mounted on the second car riage and a screw for adjusting the same, horizontal and vertical shafts journaled in said frame at right angles to each other, bevelgears adapted to connect the two said shafts, a cope-cutter head secured to one end of the vertical shaft and means for rotating the horizontal shaft, for the purpose set forth.

5. In a tenoning-machine the combination with the bed or main support having a driving-shaft journaled therein, a driving-pulley mounted on said shaft, the base 3 mounted on said bed, a vertical standard secured to said base, a vertical movable carriage mounted on the standard, a horizontal tenoning cutter-head arbor mounted thereon, a pulley on said arbor,'a horizontal shaft mounted adjustably on the said carriage, a vertical copearbor mounted adjustably on said carriage but movable With the said horizontal shaft, bevel-gears for connecting the said horizontal shaft and vertical arbor, another standard secured to the base,a vertical adjustable presserframe mounted on said independent standard and means for adjusting same, a horizontal saw-arbor mounted thereon and adjustable vertically, and having a pulley, secured thereto and means for adjusting the same, a single belt passing over and around the several mentioned pulleys and around the pulley on said driving-shaft and means for tightening said belt and rotating the driving-shaft substantially as shown and described.

6. In a tenoning-machine a standard 4 a vertically-movable carriage 5 for the main tenoning cutter-heads, a second carriage 15 Vertically movable thereon, a frame 27- mounted on the second carriage and movable horizontally, a horizontalshaft and vertical arbor 3O bevel-gears 29 to connect the said shafts a presser-frame 39 separate standard 40 for same mounted on the base 3 aJsaW-arbor mounted on thesaid standard 40 and adjustable vertically thereon.

7. In a tenoning-machine the combination With a base, a vertical standard mounted thereon, a carriage mounted on saidsstandard and adjustable vertically, another carriage mounted on the above-said carriage andcapabl'e of being adjustedvertically, aframe 27 mounted on the latter carriage andcapable of horizontal movement, a shaft j o'urnaled in said frame and having a pulley secured to the middle thereof and a bevel-gear secured to the end thereof, a vertical cope-arbor journaledin the said frame and having a bevelgear secured thereto, said. gear adapted to mesh with the other said gear, a cope-cutter head secured to one end of said arbor, and a balance-wheel secured to the other end and means for rotating'said pulley for the purpose specified.

8. In a machine of the class described the combination with a base 3, of a standard'4, a carriage mounted thereon and capable of vertical movement thereon and having tenoning cutter-arbors journaled therein, vertical cope-arbors mounted on said carriage and capable of independent horizontal and vertical adjustment thereon, another standard secured tothe base in advance of the said standard 4, and having the extending por tion 41, a presser-frame'attached tothe said extension and capable of verticaladjustment thereon, slides or ways on: the front sideof the standard 40, a carriage mounted on said slides, and capable-of Vertical adjustment thereon, a bracket 46 mounted on the lastsaid carriage and capable of horizontal adjustment, a saw-arbor journaledinthe said' bracket and having a sawattached to the end thereof, and means for universally adj usting the several cutter-head arbors an saw. forthe purpose specified 9. In a tenoning-machine the combination :tenoning-arbors 13 carrying the cutter-heads,

13 j ournaled in said carriage and adjustable vertically thereon, cope-arbors30 journaled in the said carriage l5 and having the on ttercutter-heads may be removed for the purpose heads 17 secured thereto, the resser-frame specified. 10 support 40, the Presser-frame 39, means for In testimony whereof I affix my signature moving the standard 4 axially with the main in the presence of two Witnesses.

5 cutter-head arbors 13, and means for securing JAMES A. BARNES.

the said standard to the base in one position, Witnesses:

whereby when the said standard is moved BER. J. DALY, away from the presser-frame 39 the tenoning GEORGE E. WILLIAMs.

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