US146668A - Improvement in boring and tenoning machines - Google Patents

Description

3 Sheets-Sheet 2 A.. H. GETTEL. Borinugand Tanning-Machines.

NO. 146,668. Patentedln. 20,1874.

A. H. GETT'EL. Boring and Tenonng-Machines@i L NOQ146` 668, PatentedJanQZO,

"Mine/5.3365;

UNITED STATES AMos H. GETTEL, on LEBANON, PENNSYLVANIA.

IMPRovEMEN-r IN BORING AND TENONING MAjHllNs. y

, Specification forming part of Letters Patent No. 146,668, dated January 20, 1874; application filed March 8,1873. i

To all whom it may concern.' Be it known that I, AMos H. GETTEL, of Lebanon, in the county of Lebanon and State of Pennsylvania, have invented a new and valuable Improvement in Boring and Tenoning Machines 5 and I do hereby declare that the following is a full,l clear, and exact descrip tion of the construction and 'operation of the same, reference being had to the annexed drawings, making apart of this speciiication, and to the letters and figures of reference marked thereon.

Figure l of the drawings is a representation of a side elevation of my improved boring and tenoning machine. Fig. 2 is another side elevation. Fig. 3 is a top view. Fig. 4 is a view of the side opposite to that shown in Fig. 2.

My invention relates to certain improvements in boring and tenoning machines; and it consists in 'a pair of saws attached to plates capable of lateral adjustment, working in connection with an adjustable cutter or plane bit, for makingthe tenon; a combination of devices for raising and lowering the frame which carries the tenoning devices.

In the drawing, A represents the stand or platform which supports the machine, consist in of a horizontal base with a vertical standard, to which the working parts are attached. B is a vertical guide-frame, attached to the standard, in which works a plate, C, having four bars, o, projecting horizontallyfroln the outer sidetwo near the upper and two near the lower edge. These bars have horizontal grooves formed transversely near their outer ends, on the lower sides of the upper bars and the upper sides of the lower bars, which grooved bars serve as supports and guides for a rectangular frame, D, which slides therein. About midway between the bars o are two similar bars, o2, in the outer ends of which are bearings for a shaft, E. On the outer end of the frame D is a circular plate, F, attached rigidly to the frame at right angles thereto. Resting against the face of the circular plate F is a cruciforln plate, G, the arm z of which extends upward a distance about equal to three `times the length of one of the other three arms, and has a slot, g, running nearly its entire length, in which slot slides a block, h, in which .is journaled the upper endof the auger-shaft H, which works Vin .bearings` 11.1 h2 attached to the plate Gr.` A pulley, e, is keyed to the shaft E between the bars o2,s`o that the shaft may slide longitudinally with the frame i D without changing the location ofthe pulley.

The outer end of the shaft E is journaled in the end of the frame D, passing through the plate F to the outer face of the plate G, where it carries a miter-wheel, e2, which meshes into a miter-wheel, h3, keyed to the augenshaft H. Suspended from the shaft E, between thebars c2,is a band-tightener, J, carrying two pulleys at its free end. lever, I, which engages with notches in the lower rail of the frame D, for the purpose of shifting said frame longitudinally. The cru-` i ciform-plate Gr engages with the circular plate `F by means of clamps .02,7 on the ends of two of its arms, provided with set-screws g3. J our-` naled in an extension of the upper bearingblock h1 of the auger-shaft, and the upperarm of the plate G, is a shaft, K,`provided with a handle, k, for turning it. `On this shaft is a pulley, k1, and just above itis a second pulley, k2, journaled in the plate Gnear the lower end of the slot g, and near the upper end of the slot g is a third pulley, lo?. A band or cord,

7a4, has one end attached to the block h, and

passes up over theV pulley k3, down under the pulley k2, around the pulley 761, and thenceto the block h, where the other end is secured. On the inner side of the plate C isa rack, c3, which engages with a pinion, c4, on a shaft, c5, journaled in the sides ofthe guide-frame B,

and having a hand-wheel, c6, on the outer end.

The circular frame F has degrees andfractions thereof marked on itsface, and the plate G, turning on its center,'can be adjusted to any desired angle by means of the clamps g2 and set-screws g3. The kauger-shaftH being `attached to the plate Gr, the` auger is made to bore in any direction, corresponding with the f angle of inclination of the plate G on its center.

Pivoted to the plate C is a` By means `of the pinion o4 engaging" with `the rack 03,the plate C may be raised and lowered in the guide-frame to correspond with the thickness of the material to be bored, being held at the desired points by any suit-able devices.

By means of the band or cord 7a4 attached to the block h, and passing around the pulleys kl c2 7c3, the auger-shaft H is raised and lowered by turning the crank-handle lo on the shaft K, feeding the auger to the work and raising it therefrom, as" desired,independently of the operation of the rack c3 and pinion c4, connected with the plate C, and without .affecting the angular inclination of the augershaft.

By means of the lever I engaging with the notches in the lower rail of the frame D, said frame is shifted longitudinally in the grooved bars o, so as to adjust the auger to the desired points in the material to be bored.

The table L, which supports the material to be worked is placed at one side of the standard A, so as to accommodate both the boring and tenoning mechanisms. The table rests upon a platform, L2, attached to the outer ends of two bars, Z, the inner ends of which slide horizontally in flanged or dovetailed grooves m, on opposite sides of the standard A, so that the table may be moved nearer to or farther from the standard, as may be desired. This movement of the table is accomplished by'means of a screw-shaft, N, engaging with a nut, O, seated in a cavity in the standard A, and provided with a hand-wheel, a, for turning it. The longitudinal movement of the table is accomplished by means of a pinion, p, engaging with a rack, q, on the under side of the table, and operated by a handwheel on the pinion-shaft, said shaft being journaled in bearings attached to the platform L2, so that the table may be shifted back and forward toaccommodate the work to bot-h the boring and the tenonin g mechanisms. On the side of the standard A opposite to the guideframe B is a guide-plate, R, from. the upper end of which extends a horizontal arm, 0", in.

the outer end of which is journaled vertically a miter-wheel, r1, which meshes into a miterwheel, r2, on a shaft, r3, carrying a pulley, r4, and journaled in the end of a curved bar,r15, which also extends from the upper end of thc plate B. Sliding vertically in this guideplate is a smaller plate, S, from which eX- tends an arm, s1, to which is attached in a horizontal position a circular plate, S2, with degrees and fractions of degrees marked thereon. U1Tder\the circular plate S2, and connected therewith `by`screwclamps s, is a guide-frame, S4, which extends outward for a distance somewhat greater than the width of the table L. Keyed to the miter-wheel r1 so as to revolve therewith, but be capable of sliding vertically therein, is a shaft, S5, which passes down through the circular plate S2 and guide-frame S4, and 'has a radial arm` or crank, s6, rigidly attached t0 its lower end,

which arm, s, is connected4 by a pitman, ST, to a reciprocating frame, T, Figs. l and 2, arranged to run in guides in the frame S4. On the under side of the frame T are two transverse bars, t, to the ends of which two bars, carrying saws t2, are attached by means of set-screws working in slots in the bars t, so as to admit of lateral adjustment. Between the saws is arranged an adjustablevcutter or plane-bit, u, attached to a block on the under side of the frame T by means of a set-screw, working in a slot in said cutter or bit, by which means it may be adjusted to regulate the depth of cut, or may be removed and replaced by others of different widths.

By means of the set-screws working in the slotted bars t, the saws t2 maybe adjusted as to their distance apart, and to correspond with the width of the cutter u, so as to regulate the width of the notch or tenon cut by the saws and cutter.

Motion is communicated from the pulley r4 through the gears r1 r2 to the shaft S5, and by said shaft through the bar s6 and pitman s7 to the frame T, carrying the saws and cutter constituting the tenoning devices.

.Extending downward from the arm r is a bar, r6, to which is pivoted one end of a lever, V, which engages, about midway of its length, with a bar, fu, the lower end of which is pivoted between lugs w, projecting from the arm s1. The bar c has a number of holes formed in it for the reception of a pin passing through a hole in the lever V, so as to connect it at different points, as desired. The bar passes through a slot in the lever, and the pin passes through both the lever and the bar, and thus connects them tcgether. Y

By means of the lever V and its connections, arranged as above described, the frame which carries the tenoning devices can be readily raised and lowered to adjust it to the height or thickness of the material to be worked. As the guide-frame S4 is connected to the circular plate S2 by screw-clamps, and moves in an arc of which the shaft S5 forms the center, it can be readily adjusted at any desired angle. i Y Y I claim as new and desire to secure by Let ters Patent 1. The' combina-tion of theguideframe S4, connected with the circular plate S2 by screwclamps, and carrying the reciprocating frame T, with saws t2 and cutter u attached, substantially as shown and described.

2. The combination of the saws t2 and cut ter a, adjustable in the frame T, forming the tenoning mechanism, substantially as shown and described.

Y3. In a boring and tenoning machine, the combination and arrangement of the lever V, pivoted to the bar r6 of the arm o", and perforated bar o: attached to the arm s1 of the vertically-adjustable plate S for raising and lowering tliel tenoning mechanism, as shown shaft E, between the bars c2, as shown and deand described. scribed. i

4. In combination with the guide-frame s4, In testimony thatI claim the above I have carrying a tenoning mechanism, the tableL, hereunto subscribed my name in the presenceI adjustable longitudinally and' laterally, "as of tWo witnesses.

` c speciied. AMOS H. GETTEL.

5.l In combination With the longitudinallyl Witnesses: t sliding` frame D, carrying the boring mechan- BAssLER BOYER, ism, the band-tightener J, suspended from the ANTHONY S. ELY.

Images