US378168A - Machine foe cutting scrolls on ends of baes - Google Patents

Description

(Nb Model.) 2 Sheets-Sheet 1.

J. KOEN. MACHINE FOR'GUTTING SGROLLS 0N ENDS OF BARS.

Patented Feb. 21, 1888.

' INVENTUR WITNESSES I M Z-AA/j MM ATTORNEYS.

(N0 Mode1.) 2 sheets Sheet 2. J. KOEN.

MACHINE FOR CUTTING SORULLS ON ENDS'OF BARS. 1% 378,168. PatentdAPeb. 21, 1888.

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INVENTDB ATTDBNEYS N PETERS PhuloUtMgn-phar. Washington. ac.

UNITED STATES PATENT EticE.

J OSEPII KOEN, OF ONEIDA, NEW YORK, ASSIGNOR OF ONE-HALF TO J HERBERT KENNEDY, OF SAME PLACE.

MACHINE FOR CUTTING SCROLLS ON ENDS OF BARS.

SPECIFICATION forming part of Letters Patent No. 378,168, dated February 21, 1888.

Application filed August 19, 1887. Serial No. 247,345. (No model.)

To all whom, it may concern:

Bcit known that I, JOSEPH KOEN,of Oneida, in the county of Madison, in the State of New York, have invented new and useful Improvements in Machines l'or Outting Scrolls on Ends of Bars, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates more particularly to the forming of the usual ornamental tips on the ends of side bars, head blocks, springbars, and cross-bars of spring-vehicles, said ornamentation usually consisting of scrolls cut in the sides of the end portions of the bars, which scrolls have hitherto been cut by hand tools and required skilled and expensive labor and considerable time in performing said work.

My invention consists in a novel construction of a machine by means of which the aforesaid scrolls can be cut on the ends of bars very expeditiously, accurately, and uniformly,and without the employment of skilled labor, all as hereinafter fully described,and specifically set forth in the claims.

In the (lrawi1igs,Figure 1 is atop plan View of a machine embodying my invention. Fig. 2 is an end view of the same. Fig. 3 is afront elevation with one end of the carrying-arms and clamps removed. Fig. 4 is an enlarged top plan view of one set of cutters with the bar-carrying arm and bar-clamps. Fig. 5 is a vertical transverse section on the line :0 a, Fig. 4-; and Figs. 6 and 7 are respectively side and plan views of a tip formed by my machine.

Similar letters'of reference indicate corresponding parts.

A represents the main supporting-frame, which may be of any suitable form to receive and properly carry the mechanism of the ma chine, which is as follows:

In suitable boxes or bearingsfl I, rigidly attached to the top of the frame A, is journaled an arbor, F, to each end of which I secure a set of cutters, c c, the two sets being disposed reverse from each other. The shape of the cutters nccessaril y varies according to the crosssectional shape of the tips to be formed on the bars. For forming the tips of the shape at present in vogue, I make the cutter cot cylindrical form and the cutter c of V shape. A pulley, 1?, is secured to the arbor F,to be connected with a driving-pulley by a belt which transmits rotary motion to the arbor. Under each end of the arbor is a bracket, H, which is connected to a rigid vertical plate, L,on the frame A by means of bolts 1' 'r, projecting from the plate L, and through vertical slots 1* r in the vertical wall of the bracket, and provided with nuts on their ends. By loosening the nuts the bracket H can be raised or lowered to carry the superincumbent bar-carrier G a greater or less distance from the cutters c c. A screw, N, passes vertically through a screwthrcaded eye in a horizontal projection, L,on the foot of the plate L, and the upper end of said screw engages the base of the bracket H. By turning this screw the bracket can be raised or lowered, as aforesaid, and by tightening the nuts of the bolts r r the bracket is held against the plate L. The bracket is provided with vertical flanges, by which it embraces the vertical edges of the plate L,and is thus guided and sustained laterally in its position. On the bracket H is firmly secured the table T, which is provided on its top with a hub, O, arranged in front of the end of the arbor Rand having an eye extending through it vertically, or at right angles to the arbor. On the top of the hub O rides one end of the arm 0, designed to carry the bar to be operated on. Said arm is pivoted on the upper end of a pin, a, which is axially at right an gles to the arbor F, and passes vertically through a longitudinal slot, 1), in the arin,and through the eye of the hub O,and projects some distance below the tableT, and is provided on its upper end with a head, by which it bears on top of the arm 0, and has its lower end screw-threaded and provided with a nut, between which and the under side of the table is aspiral spring, a, surrounding the pin and serving to draw the pin down, so as to hold the arm G upon the hub O, the nut on the pin a permitting of adjusting the tension of the spring by running the not up or down on the pin, as may be desired. Thearm Gbeing pivoted on the pin a, passing through the slot b, allows said arm to swing laterally toward and from a line parallel with the axis of the cutters c c, and also to reciprocate longitudinally toward and from the cutters.

To control the arm 0 in its reciprocating movement, I provide the table T with a sta tionary guide, B, curved eccentrically in relation to the pivot-pin a, and to the arm 0, I pivot a co-operating guide, B, which slides on the stationary guide and engages the longitudinal edges thereof, so as to compel the pivoted guide to follow the contour of the stationary guide during the swinging movement of the arm 0, and thus said arm receives a reciprocating movement toward and from the peripheries of the cutters 0 c. The swinging movement of the arms is limited by stops k k, adj ustably secured to the stationary guide B. The end of the arm 0 adjacent to the hub O is formed with a cam, p, on its under side, said cam being caused to slide on and off from the top of the hub 0 during the movement of the arm 0, and thereby raises and lowers said arm so as to cause the cutters c c to cut a uniform depth in the tapering end portion of the bar carried on the arm 0, as represented in Figs. 1 and t of the drawings. On the aforesaid end of the arm 0 is secured an abutment, h, against which rests the ends of the bar operated on. Said abutment I make adjustable in its position by mounting it movably on the arm and providing it with a tongue, which passes through theslot b and is held adj ustabl y therein by aset-screw, s, passing through one side of the arm and abutting against the side of said tongue. The abutment is further sustained in its adjusted position by a set-screw, m, extending through a screw-threaded eye in a shoulder, m, on the end of the arm 0. The aforesaid abutment h, I form of wood, for the purpose of obviating injury to the cutters c o by contact of the abutment with said cutters, and in order to afford a proper bearing for the end of the setscrew m, I insert in the abutment a metallic bolt, Z, provided with ahead, Z.

To the top of the carrier-arm O is secured a breast, D, against which to hold sidewise the bar to be operated on. In order to permit of the varying location of the scrolls to be cut on the ends of the bar, I make the breast D adjustable laterally toward and from parallelism with the longitudinal center of the carrier-arm O, by providing said arm with segmental slots e e, and fastening the breast on the arm 0 by bolts passing throughsaid slots. The bar to be operated on I hold against the breast D by means of a clamp consisting of a grip, f, sliding transversely in said breast and connected to a manipulating-lever, g, pivoted in a suitar ble manner on the breast D.

In operating the described machine arm 0 is first swung toward the end of the guide B which is most remote from the pivot-pin a. Then the bar to be operated on is placed on the said arm in a position to present upward the side of the bar in which the scrolls are tobe cut, the bar being made to abut with its end against the abutment h and clamped against the side ofthe breast D by the grip f, and

then swinging the arm Ov around toward the end of the guide B nearest the pivot-pin a,the cutters c c arecaused to cut first a sharplycurved scroll with a gradually-reduced curvature extending the bar to the desired distance from the end thereof, the curvature being reduced, as aforesaid, by the sharper curved end of the guide B crowding the arm 0 endwlse toward the cutters c o. By mounting a set of cutters c c on each end of the arbor F and connecting to the frame A two tables, T T, equipped with two carrier-arms O 0, arranged movably toward and from the respective sets of cutters, in the manner before described, the work of cutting the scrolls on the ends of the bars is greatly expedited, inasmuch as a man attending one end of the machine can cut the scrolls on one side of each end of the bar and then pass it to a man attending the opposite end of the machine, where the scrolls are cut on the unfinished sides of the bar.

Having described myinvention, what I claim is- 1. In a machine for cutting scrolls on the ends of bars, the combination of a rotary arbor mounted in fixed bearings, cutters secured to said arbor, a bar-carrier mounted on a pivot axially at right angles to the arbor and arranged movably longitudinally toward and from the cutters,and a curved stationary guide arranged eccentric in relation to the aforesaid pivot to control the bar-carrier in its reciprocating movement, substantially as set forth.

2. In combination with the rotary cutters o 0, the pivot-pin a, at right angles to the axis of the cutters, the eccentric guide B, the carrier-arm 0, provided with the slot 1), and connected thereby to the pivot-pin a,and the guide B, pivoted on the arm 0 and sliding on the guide B, substantially as described and shown.

3. In combination with the table T and rotary cutters c c, the pivot-pin a,at right angles to the axis of thecutters, the carrier-arm 0;. swinging on said pivot-pin, the breast D on said arm, and the clamp for holding the bar to be operated on against said breast, substantially as set forth.

4. In combination with the rotary cutters c c, the pivot-pin a, at right angles to the axis IIO of the cutters, the carrier-arm 0, provided with the slot 1) and connected thereby to the aforesaid pivot-pin, the stationary eccentric guide B, the guide B on the arm 0, sliding on the stationary guide, and a clamp on said arm for holding the bar to be operated on, substantially as described and shown. a

5. In combination with the rotary cutters c c, the pivot-pin a,at right angles to the axis of the cutters,the carrier-arm O, swinging on said pivot-pin, and the bar supporting breast D, secured adj ustably in its lineal position on the arm 0 to and from parallelism with the longitudinal center thereof, substantially as and for the purpose set forth.

6. In combination with the rotary cutters c c, the pivotpin a, at rightangles to the axis of the cutters, the carrier-arm O, swinging on said pivot-pin and provided with the segmental slots e e, and the breast D, connected to the arm C by bolts passing through the aforesaid slots, substantially as described and shown.

7. In combination with the rotary cutters 0 c, the table T,supported adj ustably vertically, the pivot-pin (1, arranged on said table at a point in front of the cutters, the arm 0, swinging on said pivotpin, the breast D, connected to said arm, and a clamp for holding on the breast the bar to be operated on, substantially as set forth and shown.

8. In combination with the rotary cutters c c, the pivoted arm G, the breast D, the grip f, sliding transversely in said breast, and the levery, connected with the grip, substantially as and for the purpose shown and set forth.

9. In combination with the cutters c c, the pivoted arm 0, the abutment h, secured to the arm at one end,and a clamp connected to the opposite end of the arm for holding thereon the bar to be operated on, substantially as set forth.

10. In combination with the cutters c c, the pivoted arm 0, abutment 71, connected to one end of said arm adj ustably toward and from the pivot of the arm, and the breast D, connected to the opposite end of the arm' adjustable to and from parallelism with the longitudinal center of said arm, substantially as described and shown.

11. In combination with the cuttersc c, the

table '1, supported adjustably vertically, the arm 0, pivoted on said table and provided with the slot 1), the abutment h, composed of wood and sliding in said slot, the metal bolt 1, secured to the abutment and provided with the head Z, and the set-screw m, bearing on said head, substantially as described and shown.

12. In combination with the cutters c 0', the table T, provided with the hub O, the pivotpin a, arranged movabl y longitudinally in said hub, the spring a, arranged to resist the movement of said pin, and the arm 0, connected to the pivot-pin and provided with the earn 1), substantially as described and shown.

13. In a machine for cutting scrolls on the ends of bars, the combination of a rotary arbor, the cylindrical cutter c, with the \I-shaped cutter c in front thereof mounted on said arbor, the carrier-arm O, swinging on a pivot arranged axially at right angles to the arbor, and a clamp on said arm for holding thereon the bar to be operated on, substantially as described and shown.

In testimony whereof I have hereunto signed my name and afiixed my seal, in the presence of two attesting witnesses, at Syracuse, in the county of ()nondaga,in the State ofNew York, this 20th day of June, 1887.

JOSEPH KOEN. [n s] W'itnesses:

H. P. DENISON, G. BENDIXON.

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