US1598345A - Tool for applying wire clamps - Google Patents

Description

Aug. 31,1926. 1,598,345 F. w. GUNN TOOL FOR APPLY'ING WIRE CLAMPS Filed April 15, 1925 INVENTOR v III V 611 707 ATTORNEYS Patented Aug. 31, 1926.

uni-rte nnnn w. Genie, e1 BOSTON, MASSACHUSETTS.

TOOL FOR A'EPLYING': WIRE CLAMPS.

Application filed April 15, 1925. Serial No. 23,217.

M y invention relates to improvements in tools for a) )1 in wire clalnos to hose con plings or like ObJGCtS, and it consists inthe" combinations, constructions and arrangements herein described and claimed.

An object of the invention is the provision of a simple; reliable and elli'cient tool which can be convenientlymanipulated to firmly secure a wire clamp in place on a hose or liheobject;

A further object of the invention is the provision of a tool of the'character described which atfordsfacilities fortwisting the ends of the tightened wire clamp to prevent loosening of the clamp and for causing'the surplus material atthe ends ofthe clamp to be broken off when the clamp is secured .in place.

Other objects and advantages of the invention will be apparent from thefollowing description,considered 1n 'con unct1onw1th the accompanying drawings in which z Figure 1 is a plan view of the improved tool inposition for use in securing "a wire clamp on a hose.

Figure 2 is a longitudinal vertical section through the toolyshowing also in section the hose to which the clamp is being applied,

and

Figure 3 is a transverse sectionthrough the tool, the view being taken substantially along the line 33 of Figure 1.

The improved. tool comprises-an elongated body 1 made of wood, metal, or any other "suitable material. The body has an end portion thereof enlarged vertically as'indicated at 2 to provide a: clamping head. This clamping head preferably is circular in cross-sectional contour andtapers toward its" outer end. The clampinghead 2 is hollowed out to provide a twisting. chamber 3 which is open at its outer end at the front end of the head and tapers rearwardly to a reduced opening t-at the rearward end of the head.

2. The bottom wall ofthe opening' t issub-' stantially fiushwith the upper face 1f" of the.

1 adjacent to thehead 2 is substantially flat for a short distance and then is formed with a downwardly inclined shallow groove 7 which is merged at its rearward end into an aperture 8 which extends longitudinally of the body 1 nearly to the rearward or outer end of the latta'. The ody 1 is preferably enlarged laterally from the rearward end of the groove 7 to the rearward end of the body, this laterally enlarged rearward end the handle and opens through the upper :face of the rearward'end portionof the handle.

A wire tightening rod 10 has the forward 1 end portion thereof flattened as indicated at 11, this flattened end portion being bent downwardly at its extremity substantially at right angles to'the longitudinal axis of the rod 10 to provide a supporting end portion 12 which is adapted. to bear on the substantially fiat upper face of the forward end portion of the body and to then support the flattened portion 11 of the wire tightening rod'in spaced relation to the body 1. The wiretightening rod 10 is of sufficient length to extend rearwardly through the slot 9 beyondthe rearward end of the handle portion of the body. The rearward end portion of the rod 10 is provided with screw threads 13. A concavo-convex bearing washer 14 is loose on the threaded. end. portion of the rod and is adapted to fit closely against the rearward end of the body 1. A tightening washer l lwhich is in contact with the rearward end of. the handle portion of the body at the outer end of the slot 9 and it will be understood that further turning of the nut 15 on thethreaded portion of the rod 10 will cause axial movement of the rod 10 in the'direction opposite the clamping head 2.

The flattened forward end portion 11 of the wire tightening rod is provided directly at the rear of the supporting end portion 12 with a wire engaging vertical aperture 16.

- the wire clamp on the hose as desired.

From the foregoing description of the various parts of the device, the operation thereof may be readily understood. A hose is shown at 17 in the drawings. A wire clamp 18 may be secured'on the hose 'or on the like object for any desirable purpose, as for example to bind the hose to a pipe fitting, not shown. In applying the clamp, the latter is wrapped about the hose and the A end portions 19 of the wire clamp-are passed through the bend portions 20 of the clamp and are extended through the-twisting chamber 3 to protrude from the latter through the reduced opening l. The clamping head 2 may be formed with anaperture 21 at the bottom wall thereof for the insertion of :a tool or the finger so that the ends of the wire clamp can be conveniently extended through the twisted chamber 3 and through the opening 4. The tightening rod is swung from the position shown to substantially vertical position so that the end portions 19 f the clamp can be extended conveniently through the aperture 16. The rod then is returned to the position shown in Fig. l

and the extremities of the wire clamp .may extend into the aperture 8. The clamping head 2 at this time bears against the bend portions of the hose clamp.

The nut 15 now is manipulated to cause axial movement of the rod 10 on the body of the tool away from the clamping head 2 so that a pull will be exerted on the end portions of the wire clamp sufficient to tighten The body 1 and the wire tightening rod 10 then are turned as a unit to cause twisting of the end portions of the wireclamp in the chamber 23. The area of the opening 4 at the rearward end of the chamber 3 is sufficient to permit the end portions 19 of the wire clamp to be extended therethrough in side by side relation but is notsnfiicient to permit the wire end portions to be twisted in the opening 4:, whereby the twisting of the end portions of the clamp will take ,place in the twisting chamber only. When this twisting of the end portions of the wire clamp has been accomplished, it will be manifest that the wire clamp will. not become loose on the hose but will be firmly secured in place thereon. The twisting together of the end portions of the wire clamp within the chamber 3 against the pin 5 will cause such end .portions to be creased and broken at their points of contact with the pin .5. The tool then can be instantly displaced from engagement with the-clamp since the twisted portions of the clamp can be withdrawn form the chamber 3 through the opening at the outer end of the clamping tool. If desired, these twisted together portions can be bent downward close to the hose.

From the foregoing description, it will be understood that the tool is conveniently and easily operable to firmly secure a wire clamp in place on the object to which it is to be =tions of the wire clamp to be extended therethrough, said body having a substantially flat upper face at the rearward end of said clamping head, a wiretightening rod having :the forward end portion thereof flattened and bent downwardly at its extremity to provide a supporting end portion adapted to slide on the .upper face of said body, said -.flattened portion of the rod having a vertical aperture directly .at the rear of said depending supporting portion to accommodate the end portions of the wire clamp, and adjustable means arranged between said rod and the rearward end portion of said body for causing axial movement of said rod on said body in the direction opposite to said head.

2. A tool of the character described comprising an elongated body having a clamping head at one end thereof, said clamping head having a chamber therein open at the forward end of the clamping head and vhaving a reduced opening at its rearward end, the bottom wall of said reduced opening be ing substantially flush with the .upper face of the adjacent portion of said body,.and-said body having a longitudinally extending aperture .rearwardly of said clamping head, a \R'il-i! tightening rod having the forward end portion thereof bent downwardly 'and adapted at its extremity to slide on the body between :said clam-ping .head and said aperture in the body. said wire tightening rod having a verticalaperture formed therein at the rear of said downwardly turned forward end portion, whereby the ends of a wire clam-p may be projected through the aperture in said rod into the aperture in said body, a wire creasing pin extending transversely across the upper rearward part of said chamber adjacent to said reduced opening.

FRED W. GUNN.

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