US290231A - Method of and mechanism for straightening metal bands - Google Patents

Description

E. H. .HILL` 8 METHOD-0F AND MBGHANISM F08 STRAIGHTENING METAL-BANDS.

(No Model.)

No. 290,281. Patented D68. 18,1888.

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PATENT OFFICE.

EDVIN H. HILL, OSF VORCESTER, MASSACHUSETTS.

METHOD F AND ME-C-HANISM FOR STAIGHTENING METAL BANDS.

SPECIFICATION forming part of Letters Patent No. 290,231, dated December 18, 1883. Application filed May 28, 1883. (No model.)

To all whom, it may concern,.-

Be it known that I, EDWIN I-I. HILL, a citizen of the United States, residing at Worcester, in the county of Vorcester and State of Massachusetts, have invented certain new and useful Improvements in the Method of and Mechanism for Straightening Flat Metal Bands,

Vires, and Rods; and I do hereby declare the following to be adescription of my said invention, sufficientlyfull, clear, and exact to enable others skilled in the art to which it appertains to make and use the, same, reference being had to the accompanying drawings, which form a part of this specification.

In the manufacture of iiat metal bands,wire, and rods,-the 1n etal becomes curved andcrooked edgewise in the rolling or ilattening operation, and much time, labor, and expense is required in bringing it into astraight condition suitable for market and'use, and much care has to be exercised to avoid twisting or warping the band or wi're while straightening it laterally.

The object of my present invention is to provide means whereby iiat metal bands, wires, or metal rods can be straightened in an expeditious, convenient, and economic manneralso, to provide a practical and efficient mechanism for straightening iiat metal bands, wires, and rods by continuous operation. These objects I attain by mechanism the nature of which is more fully explained in the following description, the particular subject matter claimed being hereinafter denitely specified.

In the drawings, Figure 1 is a side view of mechanism for straightening ilat metal bands, wires, and rods, illustrating the nature of my invention. Fig. 2 is a top plan view of the same. Fig. 3 is a vertical transverse sectional view, and Fig. 4. is a bottom view'of one of the guide-plates.

In my improved apparatus for straightening, the lat metal bands, wires, or rods are passed forward through suitable guides or supports which bear against the metal at intervals along its edges, and whichy also confine it flatwise sufficiently close to prevent any twisting action. Then, while it is thus confined and supported,it is subjected to a series of sharp,quick blows, dealt upon its edges by a simultaneouslyoperating series of hammers operating in rapid succession from opposite directions, and regulated intheir force'of impact according to the degree of power required or best adapted for the particular size of wire or class of material under treatment. Y

The best method now known to me for practically applying my invention to use n the operation of straightening ilat bands or wire is bya mechanism consisting of a series of being arranged substantially as hereinafter illustrated and explained.

In the references, A denotes the table or bedplate, provided with lateral slots, in which operate the hammers or straighteners B,v and having arranged on its upper surface in longitudinal direction the guides or supporters C, which together form a course or runway for the wire D as, it passes from one end of the table to the other. The lower edge of the guide-blocks G are provided with recesses or grooves 0, of proper form to fit over and confine thewire iatwise and to sustain it at intervals edgewise, the grooves'of the guideblock being made, as indicated in Fig. 4, with parallel ends at c c', while the central part of the groove c, opposite the striker B, is hollowed or rounded out, as at d, to permit the wire to give way or bend with the blows ofthe straighteners or hammersB. Thehammers B are in Vthe present instance mounted on reciprocating rods E, that work through guides on the under side of the bed-plate A, and are provided with suitable springs, F, for forcing them forward against the edges of the wire. The strikers and their rods are moved outward in opposition to the springs by the cams or wipers G on the shafts H, mounted in suitable bearings beneath the bed A, and which shafts may be geared together, as at I, and be operated by a crank or bya belt on the pulley J, or by any other suitable means, as convenient. The cams G press outward the hammers B, and the springs F send them inward against the wire with a sharp, quick blow7 when the IOO end b of the striker falls from the cam. The outer ends of the rods E are provided with nuts K, which strike upon elastic washers L, arranged at the sides of the bed, and which serve to stop or cushion the blows of the strikers against the wire D. By turning the nuts K on the rods E, the force of the blows can be varied and regulated to give the effect required. The wire D can be drawn through the guides by feed-rolls M, arranged at the position shown, or by any suitable feeding meehanism, as desired.

In the present instance four hammers, B, and a similar number of guideblocks, C, are shown; but any number desired may be employed without departure from the nature of my invention. The guides C serve as anvils for the hammers B, which latter are preferably arranged alternating with and opposite to t-he guides, as shown, and the guide-blocks are firmly secured to the bed-plate by bolts.

The several hammers may be arranged to operate one at a time and to follow their strokes in rapid succession, so as to equalize the power required for driving the shafts H; and the number of strokes in relation to the speed at which the wire is fed forward can be so varied or proportioned that the entire length of the rod will be subjected to the hammer action along its edges, so that it comes out from the machine straight and uniform.

If desired, the guides C may be made adjustable to receive bands or wires of different widths.

Vhat I claim as of my invention, and desire to secure by Letters Iatent, is-

l. In a machine for straightening flat metal bands or wire, a series of automatically-operated hammers or strikers adapted to deliver simultaneous blows upon the opposite edges of the band or wire at intervals ot' its length as it is fed forward through the machine.

2. rIhe combination of a series of hammers adapted to deliver blows upon the opposite edges of the band or wire simultaneously at intervals of its length, and mechanism for operating the same, and a series of guides adapted to sustain the wire laterally at either side of the hammers, while permitting its bending action in front of said hammers.

3. The combination of a series of hammers adapted to deliver blows upon the wire or band, and simultaneously acting at intervals of its length, the mechanism for operating the same, and a series of guides adapted to support the wire laterally at either side of said hammers, and to confine the wire flatwise and against twisting action. A

4. The combination of a series of hammers or strikers alternately located at opposite sides of the feed-face, and adapted to deliver blows upon the edge of the band or wire at intervals of its length, and mechanism for operating the same, a series of guides to sustain and confine the wire or band, and adjusting devices for regulating the force of the hammerstrokes.

5. The combination, with the wire-confining guides, of a series of hammers or strikers operated by springs and cams, for delivering blows upon the wire or band, substantially as set forth.

6. The combination of thehammers or strikers mounted on reciprocating rods guided and supported on the bed-plate, the actuatingsprings arranged on said rods for forcing said hammers inward against the wire, and the revolving shafts provided with cams for moving said hammers outward and compressing said springs, as set forth.

7. The elastic stop-cushions L and the adjusting-nuts K, in combination with the rods A, in the manner shown, for arresting and regulating the force of the hammer-strokes- 8. In a machine for straightening flat metal bands or wires, the combination, with the supporting-bed A and mechanism for continuously feeding forward the band or wire, of guides C, that confine the wire ilatwise upon said bed and support it laterally at intervals of its length, and a. striker mechanism for imparting laterally-straightening force at positions intermediate to the bearing-points of the edgesupporting guides, said parts being arranged and operating as set forth.

9. rl`he .guide-plate C, provided with the guiding groove or recess c, having parallel bearing ends c c, and hollowed at the center, as at d, in combination with the bed A and hammers B, for the purpose set forth.

Vitness my hand this 25th day of May, A. D. 1883.

EDVIN II. HILL.

"itnessesz GHns. I-I. BURLEIGH, AUSTIN XV. n'rnizws.

E, the hammers B, the springs F, and table- IOO

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