US537652A - smith - Google Patents

Description

(No Model.)

WITNESSES:

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WIRE 'STRAIGHTENING MACHINE.

Patented Apr. 16; 1895.

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O. F. SMITH.

WIRE STRAIGHTENING MACHINE. No. 537,652. Patented Apr. 16, 1895.

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C. P. SMITH. WIRE STRAIGHTENING MACHINE.

No. 537,652. Patented Apr. 16, 1895.

WITNESSES INVENTOR UNITED STATES PATENT OFFI E,

CHARLES F. SMITII, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE SMITH do EGGE MANUFACTURING COMPANY, OF SAME PLACE.

WIRE-STRAIGHTENING MACHINE.

SPECIFICATION forming part of Letters Patent No. 537,652, dated April 16, 1 895.

Application filed February 13. 1895. Serial No. 3 N m l-l To call whom it may concern.-

Be it known that I, CHARLES F. SMITH, a citizen of the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Wire-Straighteners; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates tocertain new and useful improvements in wire straighteners and has for its object to provide an efficient device of this description which shall be readily adjustable for use and positive in its action.

In the accompanying drawings, which form a part of this application, Figure l is a plan view of my improvement; Fig. 2, a section at the line w 00 of Fig. 1; Fig. 3, a section at the line y y of Fig. 1; Fig. 4, a detail perspective of one of the pivoted adjustable jaws, and. Fig. 5 a detail perspective of the cam-bar.

Similar numbers of reference denote like parts in the several figures of the drawings.

My improved Wire straightener comprises two duplicate sets of straightening rolls, the rolls of one set being arranged at right angles to the corresponding rolls of the other set. All of the parts of these two sets are precisely alike and are operated. in the same manner, and I will therefore describe only one of these sets. It will of course be understood that these two sets are necessary in order that the wire may be straightened in two planes at right angles to each other, as is the case with any of the modern straightening devices. Of course three or even four of these sets might be employed if desired, and my invention has reference not to the employment of two, three or four separate sets of straightening rolls, but it only relates to the manner of constructing and adjusting a single set of these rolls, the use of more than one set being a matter of mere duplication.

1 is any suitable base and 2 an upright rising therefrom. 3 is a table extending from said upright, and l are idle rolls journaled'in a horizontal position upon said table.

5 are jaws which have lateral extensions 6 whose outer surfaces are circular, the opposite sides of the extensions having semi circular grooves 7 therein. The curved surfaces of these extensions are complementary portions of a circle, and said extensions are inserted downwardly through a circular opening in the table 3, and are secured in this position by means of a bolt 8 passed between said extensions and snugly fitting within the grooves '7, the rear extremity of the bolt passing through a washer 9 and having on its extremity a nut 10 whereby the head ll of the bolt is drawn against the jaws so as to prevent any displacement of the latter. It will thus be clearly seen that these jaws are in effect pivoted upon the table, the particular style of pivoting shown and described being merely a preferred arrangement in order to insure free movement of the jaws as well as considerable strength.

12 are rolls journaled in a horizontal plane upon the jaws, the position of these rolls being such that they are directly opposite to the spaces between the rolls a as is usual in devices of this description.

The outer ends of the jaws have formed thereon interiorly threaded nuts 13 through which are passed threaded bolts 14: provided at their inner ends with heads 15, said bolts being held in any desired adjustment by means of lock nuts 16.

Plvoted within the table 3 is a bar 17 upon whose upper end is formed a double cam 18 which latter in normal position extends between the bolt heads 15. 19 is a handle lever secured to the other end of the bar 17 whereby the latter may be rocked back and forth. When the parts are in the position as shown at Fig. l'the rolls 12 will be withdrawn from the rolls at in order to permit of the introduction of the wire, and the heads 15 will therefore be opposite the sides of the cam 18 at its narrowest diameter, but when the handle 19 is operated to turn the cam, the latter will act against the heads 15'and will thereby throw the jaws 5 inward so as to carry the rolls 12 against the wire and into operative position for straightening the latter in conjunction with the opposite rolls 4.

In case that it becomes desirable to throw the rolls 12 in operative position nearer to or farther away from the rolls 4, this is etfected by adjusting the bolts 14 so that the throw of the jaws by the cam 18 is changed. For instance if it is desired to carry the rolls 12 closer to the rolls 4 the bolts let are driven farther within the nuts 13, so that when the cam is operated the jaws will be thrown closer to the rolls 4, and the reverse follows if the bolts 14 are turned in the other direction. This adjustment of the rolls 12 is of great advantage, for even when the device is in operation and it is desired to shift their position,

this may be accomplished, without stopping the feed of the wire, by simply manipulating the bolts 14, and the workman thus is enabled to inspect the wire and to carefully note the changes produced in its appearance. In other words, it is a great advantage to be able to correct the operation of the straightener during the act of straightening, for then the adjustments may be made gradually and until a good result is obtained. As before stated I have shown these jaws pivoted in a peculiar manner, and while I prefer this construction, I do not wish to limit myself to any particular way of pivoting these jaws, since it will be obvious to any skilled mechanic that, as far asthe operation of thesejaws is concerned, it is only necessary that they shall be pivoted so as to be capable of swinging and thereby carrying the rolls 12 into or out of operative position.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a wire straightener, the combination of a series of idle rolls stationary except as to rotary movement, with a pair of pivoted jaws,

rolls carried by said jaws and opposite to the spaces between the first mentioned rolls, a rotatory cam bar between said jaws, and adj ustable abutments carried by said jaws on opposite sides of said cam bar, substantially as set forth.

2. In a wire straightener, the combination of a series of idle rolls stationary except as to rotary movement, the pivoted jaws carrying rolls opposite to the spaces between the first mentioned rolls and having at their free ends nuts, the rotatory cam carrying bar, and the threaded bolts passed through said nuts and provided with heads which extend on opposite sides of said cam, substantially as set forth.

3. In a wire straightener, the combination of the table, a series of idle rolls journaled on said table, the jaws having at their outer ends nuts and at their inner ends extensions whose outer surfaces are circular and whose inner faces are provided with circular grooves said extensions inserted through a circular opening in the table, rolls carried by said jaws, the headed bolt within said grooves, means as a washer and nut for securing said bolt in position, the rotatory bar journaled within the table and carrying a cam, the threaded bolts passed through the nuts on the jaws and provided with heads at their inner ends which extend on opposite sides of said cam, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES F. SMITH.

Witnesses:

F. W. SMITH, Jr., M. T. LONGDEN.

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