US2494832A - Tie wire twisting and tightening tool - Google Patents

Description

R. W. PIPER TIE WIRE TWISTING AND TIGH'I'ENING TOOL 2 Sheets-Sheet 1 I u ZCI] for Ray W. Piper Jan. 17, 1950 Filed May 7, 1947 m 5 W. m M u .m. 7 7

Jan. 17, 1950 R. w. PIPER 2,494,832

TIE WIRE wwxsmic; AND TIGHTENING TOOL Filed May 7, 1947 2 Sheets-Sheet 2 Inventor Ray W. Piper Patented Jan. 17, 1950 ()FFl-CE TIE W'IRETWISTING AND TIGHTENINGSTOOL Ray; Piper, Portland, Greg:

Application May 7, 1947', Serial No..746,i73

a tie wiretool-including" arotatable shaft on which the" ends of i the wireare woundfor 'tensioning o-fthewvireand a rotatable mounting for the shaft .bmmeans ofi wh'ichthe shaft may be bodily rotated on an axis transversely thereof for twisting and tieingthawire togetherrwith a brake or theshaft forhoiding' the shaft against rotation during the twisting action and providing a simple and practical means whereby the shaft may be rotated in a reverse direction for unwinding the ends of the twisted wire therefrom.

A further object of the invention is to provide a device of this character of simple and practical construction, which is strong and durable, efficient and reliable in operation, relatively inexpensive to manufacture and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure l is a side elevational View with parts broken away and shown in section;

Figure 2 is a rear elevational view;

Figure 3 is a side elevational view showing the brake for the shaft;

Figure 4 is a side elevational view showing the invention in use with parts broken away and shown in section; and

Figure 5 is an enlarged side elevational View of the brake removed from the tool.

Referring now to the drawings in detail wherein for the purpose of illustration I have disclosed a preferred embodiment of the invention the numeral 5 designates an anchoring base generally and which includes a substantially ovalshaped'plate 6 fromtl'ieend portions of which and-at one'side thereof project a pair of semicircular members lea'ch having a pair-of spaced parallel lugs 8" projectingoutwardl-y atthe ends of said-members:

The"plateii isformed" with a central opening 9 in which a sleeve i0 -is rotatablymounted; the inner end of "the'sleeve havinga flange l l hearing against one'side o-f the plate fi and a pin or bolt liprojects transversely ofthesleeve" Iiiat a relative opposite side of the plate fi to thus retain the sleeve-imposition in the" opening of said plate.

Apair of arcuate'shaped bearings l3 project from the flange l l at the side thereof opposite from-the sleeve I ll, and in which'ashaft It is journaled. A semi-cylindrical bearing [5 projects laterally from one of tlfebearings l3 and in which-"the shaft isseated. The shaft W is provided witha pair of transversely extending openings 16-" therein positioned between the bearings IBE A handle IT is formed with a bifurcated inner end [8 in which an eye I?! projecting longitudinally at one end of the shaft it is received for pivotally mounting the bifurcated end [8 of the handle to the shaft by means of a transverse pin or rivet 20. A sleeve 2i is slidably mounted on the inner end of the handle into an outer position over the adjacent end of the shaft M to lock the handle in longitudinally extending position and in a longitudinally aligned position with respect to the shaft. The sleeve 2! is secured in a slidably adjusted position by means of a leaf spring 22 which is recessed in a groove 23 in the handle and secured at one end to the handle by a screw 24 while the free end of the spring bears against the inside of the sleeve to secure the same against idle sliding movement.

The shaft M is secured against separation in the bearings 13 by means of a transverse pin or cotter key 25 at the end of the shaft opposite from the handle IT. The shaft id is held against rotation by means of a brake designated generally at 26 and which comprises a split clamp 2'! having a plate 28 at one end secured to one of the bearings [3 by a rivet, pin or the like 29, the ends of the clamp having parallel apertured ears $6 in which a bolt and wing nut Si is threaded for closing the clamp in binding engagement with the shaft. A brake lining or band 32 is secured in position in the clamp 21, the band 32 being constructed of copper or other suitable material to provide an effective frictional engagement with the shaft M,

In operation of the tool a tie-wire 33 for a concrete form 34 has its ends 35 inserted through the openings I6 of the shaft I l and with the lugs 8 of the base member 6 in position at opposite sides of one of the uprights 36 of the form to hold the base anchored to the form against rotary movement.

The sleeve 21 is then moved outwardly on the handle I! as shown in Figure 2 whereby the handle is then used as a crank for rotating the shaft l4 and winding the ends of the Wire on the shaft to tighten or place the tire-wire under tens1on.

After a desired tension has been placed on the wire the brake 25 is tightened on the shaft by the nut 31 to prevent reverse rotation of the shaft. The sleeve 2! is then moved inwardly on the handle I! to connect the handle in longitudinal alignment with the shaft 54 to facilitate bodily rotation of the shaft and to rotate the sleeve in the base and with the bolt or pin 12 positioned between the ends 35 of the wire the rotary movement of the sleeve will twist the wire as shown at 31 to thus tie the ends of the wire together. Tension of the Wires may be adjusted by the brake during the tieing operation to prevent breaking of the Wire.

By releasing the brake 28 the shaft 14 may then be rotated in a reverse direction to free the ends 35 of the wire therefrom and the tool may then be removed and moved to a new location for tightening additional tiewires.

In view of the foregoing description taken in conjunction with the accompanying drawings it is believed that a clear understanding of the device will be quite apparent to those skilled in this art. A more detailed description is accordingly deemed unnecessary.

It is to be understood, however, that even though there is herein shown and described a preferred embodiment of the invention the same is susceptible to certain changes fully comprehended by the spirit of the invention as herein described and the scope of the appended claim.

I claim:

A tie-wire tightening and twisting tool comprising a stationary member, a rotary member journaled thereon, a second rotary member journaled on the first rotary member and having its axis at right angles to the axis of the first rotary member, a pivoted handle carried by the second rotary member, locking means securing the handle at right angles to the second rotary member for use as a crank for rotating the same to initially wind the ends of a tie-wire thereon, or for securing the handle in longitudinally aligned position with the second rotary member to rotate the first rotary member, a transverse pin carried by the first rotary member engaging the wire to twist the wire during rotation of the first rotary member, and locking means for the second rotary member during the twisting operation.

RAY W. PIPER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 57,656 Alden Sept. 4, 1866 313,272 Archer Mar. 3, 1885 849,256 Moore Apr. 2, 1907 919,893 Larson Apr. 27, 1909 1,169,496 Knauff Jan. 25, 1916 1,254,813 Lake Jan. 29, 1918 1,391,820 Boenning Sept. 27, 1921 1,736,585 Fehlhaber Nov. 19, 1929 2,280,500 Reyburn Apr. 21, 1942 FOREIGN PATENTS Number Country Date 18,341 Great Britain 1 Aug. 9, 1909

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