US497733A - Wire-tightener - Google Patents

Description

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(No Model.)

UNITED STATES PATENT OFFICE.

SIMON I'I. STUPAKOFROF PITTSBURG, ASSIGNOR TO THE UNION SWITCH AND SIGNAL COMPANY, OF SWISSVALE, PENNSYLVANIA. i

WIRE-TIGHTENER.

SPECIFICATION forming part of Letters Patent No. 497,733, dated May 16, 1893.

Application filed September 5, 1892. Serial No. 445,085. (No model.)

T0 a/ZZ whom t may concern,.-

Be it known that I, SIMON H. STUPAKOFE, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented or discovered certain new and useful Improvements in Wire-Tighteners, of which improvements the following is a specification.

The invention described herein relates to certain improvements in means for tightening wires, and has for its object a device incorporatein or forming a part of a line of wire, whereby the tension of such line of wire may bc easily and quickly adjusted as required.

In general terms the invention consists in the construction and combination substantially as hereinafter more fully described and particularly claimed.

In the accompanying drawings forming a part of this specification, Figure l is a view in side elevation of my improved tightener in operative position in a line of wire. Fig. 2 is a plan View of the same on an enlarged scale. Figs. 3 and i are side and plan views respectively, of a modified form of the tightener. Fig. 5 is a side elevation of a further modification of the tightener. Figs. 6 and 7 are detail views of the movable blocks or links. Figs. 8 and 9 are transverse sections, the planes of section being indicated by the lines 5c, oc, and y, y, Figs. 3 and 5 respectively.

In the practice of my invention, the adja- Vcent ends l, la, of a line of wire are attached to one end or side of the blocks or links 2, 2a, arranged on the bar 3. The bar 3 may consist of two plates arranged parallel with each other, as shown in Figs. l to et, inclusive, or of a solid bar as shown in Figs. 5 and 9. The opposite edges of the bar are provided with a series of teeth or notches 4, the teeth or notches on the edges being oppositely pitched,

`so as to hold one of the blocks or links as against movement in one dirction and the otherlink as against movement in the opposite direction. The parts 2, 2a, may be madein the form of blocks adapted to tit between the side plates, as shown in Figs. 1, 2 and 6, and provided with lateral wings or lugs 5 and 6, projecting over the edges of the side plates. The

inner edges of the lugs 5 are suitably shaped to engage the teeth or notches 4,whi1e the inner edges of the lugs 6 are constructed to bear upon and slide along the smooth portions of the edges of the bar.

As shown in Figs. 3, 4, and 7, the parts 2, 2, may be made in the form of split links so as to [it around the bar 3. In this form the lugs 5 project inwardly over the edge of the bar so as to engage the teeth or notches 4, while the closed ends ot thelinks correspond to the lugs 6, and bear upon the plain portions ot the edges of the bar, said lugs being connected by pins 7, formed integral therewith.

In the construction shown in Figs. 5 and 9, the parts 2, 2, are made in the form of closed links, the inner edge of one end of the links being constructed to engage the teeth or notches in the bar. That end of each bar or link opposite the one constructed to engage the teeth or notches, is provided with suitable means for connecting such as the hole S or the pin 7, for attaching the ends of the wires.

After the ends of the wires have been attached in the manner described and the blocks or links slipped onto the bar 3, the latter is turned to a position at an angle to the normal direction of the line of wire, and the links slid along the same toward each other if it is dcsired to tighten the wire. The bar is turned in such direction to a position parallel with the line of wire, that the ends of the wire will overlap as shown in Fig, l.

In order to hold the device in a position parallel with the wire, hooks 9 are formed on the ends of the bar 3, for engaging the wire, as shown in Figs; l, 2 and 5. Any othersuitable means may be employed for locking the ends of the bars to the wire, as, for example, split rings l0 lnay be arranged on the ends of the bar as shown in Figs. 3, 4 and 8. When the bar is turned to parallelism with the wire the latter passes through the gaps in the rings which are then turned to the position shown in Fig. 8, thereby locking the end of the bar to the wire. The rings are held in position on the bars by pins passing through slots in the rings to permit of their adjustment.

I-claim herein as my invention l. In a Wiretightener, the combination of a bar having oppositely pitched teeth along its edges, the teeth on one edge extending from a point near the center of the bar toward one IOO end, and the teeth on the other edge from a l the bar and adapted to engage the teeth or point near the center toward the opposite end, notches and provided with means for connecblocks or links both movable along the bar l tion `With the ends of the wire to be tightened l5 and provided With oppositelyprojeoting lugs and split rings rotatable around the bar for at one end adapted to engage the teeth on the l looking the latter parallel or approximately bar and at the opposite ends with means for l so With the wire,substantially as set forth. attaching the wires thereto, and means for In testimony whereof I have hereunto set locking the nar parallel approximately so with my hand. the wire, substantially as set forth. SIMON H. STUPAKOFF.

2. In a wire tightener, the combination of a Witnesses:

bar having oppositely pitched teeth or notches along its edges, blocks or links movable along DARWIN S. WoLooTT, R. H. WHITTLESEY.

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