US748722A - Metal-beating machine - Google Patents

Description

i No. 748,722; PATENTED JAN. 5, 1904. F. W. GREMPLER.

METAL BEATING MACHINE.

APPLICATION PILED'APK. 11, 1903.

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No. 748,722.. PATBNIFEB JAN. 5, 1904. r

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METAL BEATING MACHINE.

APPLICATION nun APR. 11.1902,

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PATENTED JAN. 5, 1904;

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METAL BEATING: MACHINE. APPLICATION FILED APR. 11, 1903.

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UNITED STATES Fatented anuary 5, 1904.

PATENT OFFICE.

FRANCIS W. GREMPLER, OF HOBOKEN, NEW JERSEY.

METAL-HEATING MACHINE.

SPECIFICATION forming part of Letters Patent No. 748,722, dated January 5, 1904.

Application filed April 11, 1903.

To all whom it may concern:

Be it known that I, FRANCIS W. GREMPLER, a citizen of the United States, residing at Hoboken, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Metal-Beating Machines, of which the following is a full, clear, and exact description.

This invention relates to metal-beating machines, and has special reference to the means forshiftingthe package of metal undergoing treatment, so that the blow of the hammer will be delivered successively at varying distances from the center of the package and on successively-different radial lines.

The invention consists of specific means for moving the anvil or bed'upon which the packet rests, as well as other features of construction.

In the accompanying drawings, Figure l is a front elevation of my improved machine. Fig. 2 is a side elevation thereof. Fig. 3 is a plan on line :1; a; of Fig. 2. Fig. 4 is a section through the bed-plate, and Figs. 5 and 6 are details of the bed-plate mechanism.

A indicates the main frame of the machine, in the upper end of which the driving-shaft a, is located. This carries a loose pulley a,coutinuously rotating and having a.clutch member in one face with which-an opposing member a is adapted .to engage, the latter being keyed to the shaft and arranged to be thrown into and out of engagement by means of a bell-crank lever a pivoted on a shaft or, on which there is a crank aimoved by the handlever a. and link a".

b is a rod mounted in a suitable part of the frameand carryinga brake-shoeb,adapted to engageapulleyb on the mainshafttobringthe latter to a stop when the clutch is thrown'ont. In order that the brake may be simultaneously operated with the clutch, the lover a engages with the brake-rod, as shown, while a spring b determines the. pressure of the brake against the pulley. At the forward end of the driving-shaft is a crank-disk or, connected through pitman and slide a with a vertically-reciprocating hammer a through the springs a ,the latter furnishing the usual springy stroke required in metal beating. Below the hammer is an anvil consisting of a frame 0, provided on its upper surface with Serial No. 152,109. (No model.)

a reciprocating carriage o, mounted in ways 0, along which it is adapted to slide in a direction transverse to the hammer. This carriage supports a ring 0 confined between segmental flanges 0 which are movable in a rotary direction in retaining-flanges 0 The packet of metal and skins is to be placed'upon the stationary anvil inside of the ring, with its corners fitting into notches in the ring, so that it will be moved bodily with the ring. Each of the segments c has a slotted arm 0 into which projects a pin 0 carried by a sliding block 0 Thus when the block reciprocates the corresponding segment oscillates in a rotary direction. Each segment is provided with one or more inclined cavities 0 each containing a spring-pressed ball resting against the rim of the ring to act as a pawl. These pawls are so arranged that those of one segment only will grip the ring at the same time, and while the blocks 0 are moved simultaneously in the same direction the ring will be acted upon by only one segment. This provides for a practically-coutinuous rotary motion of the ring in one di-v rection. The sliding blocks 0 have suitable dovetail connections with guides 0 and they are moved by crank-arms on an oscillating shaft 71, mounted in the base of the anvil and having a crank i at its middle point.

In a suitable bracket D offset from the base of the machine is mounted a shaft 6, on which isloosely hung a double-armed leverf, having slots in each arm, in which are secured the ends of two rods h and j, respectively. The former connects with the crank 73 and the latter connects, by means of a yoke j,with the'carriage c. Radiating from the hub of the double arm is a projection is, carrying a roller which bears against the irregular rim of a cam-disk Z, mounted upon a second shaft Zin the bracket D. The action of this cam upon the projection is to oscillate the double arm, and thus move the carriage c in one direction,while moving the blocks 0 in the opposite direction. Both shafts e and Z extend through elongated bearings toward the rear of the machine, and the former is there provided with a ratchet-wheel e, adapted to be engaged by a pawl 2 carried by a double arm a centered upon shaft 6. On shaft Z is a gear-wheel P, which carries a pin or roller Z adjustable toward and away from the center and adapted to engage the arm a at each rotation to force the ratchet-wheel 6 forward step by step. The gear-wheel is driven by a pinion e (shown in dotted lines in Fig. 2,) centered upon shaft e and attached to a pulley 6 which also turns upon the same shaft. This pulley is driven by belt 6 from another pulley on the main shaft, as shown. One face of the ratchet-wheel carries a flange e containing a notch adapted to be engaged by a roller 6 on a crank-arm e to which the hand control-lever a is fixed. At each rotation of the ratchet-wheel the roller drops into the notch, permitting the clutch to open and the brake to be applied to stop the machine, the movement being effected by the spring I) or a spring suitably located at any other point in the system of levers.

The operation is as follows: The package, made up of alternate pieces of metal and skins, is placed upon the anvil within the ring 0 The adjustment of the rods h and j in the slots of the double arm is made suitable for the first beatings to which the pack is to be subjected. The machine is then started by lifting the handle of lever a. This throws in the clutch, releases the brake, and releases the ratchet-wheel. The hammer at once begins to beat the pack and the carriage slowly reciprocates, its motion being impartedthrough pulley e pinion a, gear Z cam Z, projection is, and the double armf, the spring 0 acting upon the double arm in conjunction with the cam. The pack is thus pushed or dragged back and forth beneath the hammer and is struck each time adiiferent distance from the center. Coincidently with the reciprocating motion of the carriage the pack partakes of a rotary motion, due to the alternate engagement of the segments 0 with the ring and the motion imparted to the segments through the arms t', shaft 2', crank 1?, rod h, and the double arm. This rotary movement being always in the same direction and being simultaneous with the rectilinear reciprocating motion of the carriage causes the blows of the hammer to be struck upon-the pack at uniformly-changing distances apart and along curved lines extending from the center toward the edge of the pack. It will be seen that the shape of each projection of the cam-disk l is that of a gradual incline on one side and an abrupt incline-on the otherside. This provides for a quick return of the center of the pack beneath the hammer after the successive blows have been delivered from the center to the edge. The machine continues to run automatically until the notch in the flange of the ratchet-wheel is again presented to the roller on the controlling-lever. When this takes place, the lever is allowed to move to stop the machine. This permits an'examination of the pack and of a difierent adjustment of the rods h and j in the slots of the double arm. It will be seen that by adjusting the position of rod 71. in the slot of arm f the rapidity of the rotary motion of the pack with respect to the number of its reciprocations in a given time can be controlled. This adjustment, together with that of the rod j, is desirable, since it enables the operator to direct the blows of the hammer at the proper points to produce the best results. Scales can be engraved along the slots in the double arm to indicate the amount of each adjustment. When the machine stops, the hammer always comes to rest in an elevated position by reason of one side of the pulley 19 being weighted and seeking the lowest side of the wheel.

Having described my invention, I claim- 1. In a metal-beating machine, the combination of a carriage, means for reciprocating the same, a pack holder carried thereby, means for rotating the same and means for varying the speed of rotation of the packholder independent of the movements of the carriage.

2. In a metal-beating machine, the combination of a rotary pack holder, reversed pawls acting upon the opposite sides of said holder, a reciprocating rod simultaneously actuating said pawls and an oscillating arm with which said rod is adj ustably connected, for the purpose set forth.

3. In a metal-beating machine, the combination of a rotary cam, a reciprocating carriage, a rotary pack-holder mounted on the carriage and mechanism whereby the cam actuates both the carriage and pack-holder.

4:. In a metal-beating machine, the combination of a reciprocating carriage, a packholder carried thereby and having a rotary movement independent of the movement of the carriage, an oscillating double arm and connections between the members of said arm and the carriage and pack-holder respectively whereby the carriage is reciprocated and the pack-holder simultaneously rotated.

5. In a metal-beating machine, the combination of a reciprocating carriage, a packholder having a rotary movement thereon, a double-armed oscillating lever, connections between the members of said arm and the carriage and pack-holder respectively forimparting said movements to said parts and a rotating cam adapted to oscillate said doublearmed lever.

In witness whereof I subscribe my signature in presence of two witnesses.

FRANCIS W. GREMPLER.

Witnesses:

FRANK S. OBER, WALDO M. CHAPIN.

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