US2600394A - Wire-hose-clamp applying device - Google Patents

Description

June 17, 1952 G. E. CONKLlN WiRE-HOSE-CLAMP APPLYING DEVICE Filed Dec. 4, 1947 IN V EN TOR. GEOPGE E. CONK L N FIG. 4

A TTOD/VEY Patented June 17, 1952 WIRE-HOSE-CLAMP APPLYING DEVICE George E. Conklin, Bushland, Pa.

Application December 4, 1947, Serial No. 789,643

(Granted under the act of March 3, 1883, as

amended April 30,1928; 370 O. G. 757) Claims.

of the hose to be secured is a significant factor.

Another object is to provide a Wire-clamping device that is compact, simple, and facile in use.

Still another object is to provide a wire-clamping device that can be manipulated with one hand.

A further object is to provide a wire-clamping device comprising a pistol-shaped clamp and a spring-loaded trigger feed thereon for the wire to be secured on a coupling.

Further objects and advantages of this invention, as well as its construction, arrangement and operation, will be apparent from the following description and claims in connection with the accompanying drawings, in which Fig. 1 is an end elevation of a wire-clamping device showing a preferred embodiment of the invention;

Fig. 2. is a side elevation thereof, partly in section;

Fig. 3 is an end elevation of the nose portion thereof;

Fig. 4-. is a plan view of said nose portion;

Fig. 5 is an isometric view of a hose coupling showing a clamping wire positioned thereon;

Fig. 6 is an isometric view of said hose coupling, showing another step in the operation of the wire-clamping device, and showing a portion of said device in phantom; and

Fig. 7 is an isometric view of said hose coupling showing a wire clamped thereon.

Similar numerals refer to similar parts throughout the several views.

The frame of the wire-clamping device comprises a hollow handle I l, which forms the stock or buttvof the pistol shape defined, and a hollow barrel l3 integral with said handle and extending therefrom. Said barrel is preferably rectangular in cross-section, with the face distal said handle open, and terminates in a tapered nose I5 having a plurality of locating holes I? positioned on opposed faces of said nose and communicating with the interior of said barrel, and having a transverse groove l9 in the tip of said nose, for the purposes hereinafter described.

Fork 2! is carried slidably and non-rotatably in the portion of barrel I3 that is of uniform cross-section, said fork having a transversely serrated or notched interior base 23 and opposed upstanding tines or ears 25. Hollow screw 21, which is integral with fork 2|, extends beyond the open end of said barrel distal said nose, said screw 21 being slidable freely in said barrel. 0

Cam 29 is provided with a transversely toothed portion 31, said cam being carried rotatably between ears 25 by means of pin 33. Said cam is carried at such eccentricity that rotation of said cam by means of integral lever arm 35 in a clockwise direction, as shown in Fig. 2, decreases the distance between the toothed portion 3! of said cam and the notched base 23 progressively, for the purposes hereinafter described.

Disc 3'! is threaded on screw 21; retaining plate 39 is secured removably to handle I l, with screw 2'! being slidable in a bore in said plate, so that disc 31 is carried at a notch in said handle in such manner that displacement of said disc relative to the barrel it is prevented. Said disc is provided with a plurality of ratchet teeth 4| disposed radially on a face of said disc, and the rim of said disc is knurled to facilitate manual rotation.

A trigger is is mounted rotatably on pin 45, which is carried in boxes in opposite faces of handle II. A lug l! integral with said trigger extends through an arcuate slot 49 in one face of handle H,said slot being concentric the path of rotation of said trigger so that lug 41 is slidable therein. Pawl 5| is carried rotatably on lug 4! by means of washer 53, and compression spring 55 is secured between lug 41 and pawl 5| to maintain clockwise tension on said pawl, as shown in Fig. 2.

Compression spring 51 is secured between trigger 43'and the base 59 of handle II to maintain clockwise tension on said trigger, as shown in Fig. 2.

In operation, when it is desired to clamp a wire in such a manner as to couple a hose 6| to a conduit 63 on which said hose is positioned, a clamping wire 65 is doubled upon itself and then bent around the hose 6! (passing preferably twice around said hose). The free ends of said wire 65 are then passed through the loop formed by doubling said wire, as shown in Fig. 5.

The free ends of said wire 55 are then passed through a pair of holes I? (accessibility determining whether the pair of holes I! above or the pair below groove H3 is employed), then passed between the toothed portion 3| of cam 29 and the notched base 23 of fork 2|, and then passed into the bore of screw 27, until suitable slack has been taken up to position groove l9 upon the crest of the loop of wire 55. Lever arm 35 is then rotated to clamp said wire securely between the toothed portion Si and the notched base 23.

When trigger 43 is squeezed, pawl 5| engages one of the ratchet teeth 4| and thereby rotates I disc 3'! through an angle of several degrees, the distance of rotation being determined by the length of travel permitted lug E7 in slot 49. Upon release of the pressure exerted by the operator on trigger 43, said trigger is restored to its orig- 1,

inal position by compression spring 57, while pawl 5| is moved into engagement in the root of the next tooth of the ratchet wheel 4| by the travel of its axis, lug M, in the slot 4 9 and by the rotative force of spring 65.

It is thus seen that upon each stroke of pawl 5| and resultant rotation of disc 37, screw 27 and its integral fork 2| and cam 29 are fed rectilinearly away from the nose of barrel |3, thereby drawing the free ends of wire 55 into barrel l3 while the groove l9 retains the looped end of said wire in selected position. It is thus apparent that repetition of this stroke a sufficient number of times is effective to tighten wire 55 on hose 6|.

To cinch or clamp the wire 55, the wire-clamping device is rotated on the axis of groove l9 back over the looped portion or standing part of the wire, preferably for an angular distance of more than 90. The disc 37 can then be backed off a number of turns to relieve tension, pawl 5| being disengaged from ratchet teeth 4| by rotation counterclockwise, as shown in Fig. 2. Then lever arm 35 is rotated to release the gripping engagement of the wire 63 effected by the cam and fork, and the wire-clamping device removed from the wire. Excess wire can then be cut off and the free ends of the wire 65 clinched upon the looped portion of said wire, as shown in Fig. 7, by means of a rawhide mallet.

It is apparent that, in lieu of the trigger-actuated feed hereinabove described, rapid take-41p of the wire can be effected by manual rotation of disc 3'1, thereby permitting speedy operation in applications where accessibility of the hose to be clamped is not a significant factor.

Various modifications and changes can be made in the subject device without departing from the scope of the invention.

The invention described herein may be manufactured and used by or for the Government of the United States of America for governmental purposes without the payment of any royalties thereon or therefor.

I claim:

1. A wire-clamping device comprising a hollow frame element forming a handle, a hollow barrel fixed to and extending from said frame and terminating in a tapered nose portion having a plurality of openings communicating with the interior of said barrel, a clamp carried slidably in said barrel, and trigger-actuated means on said 4 handle to slide said clamp relative to said barrel. 2. A wire-clamping device comprising a hollow frame element forming a handle, a hollow barrel fixed to and extending from said frame and terminating in a tapered nose portion having a transversely grooved tip and a plurality of openings communicating with the interior of said barrel, an integral fork and screw carried slidably in said barrel, said fork having a transverse- 1: 1y serrated inner base, a cam having a toothed portion mounted rotatably on said fork, whereby a wire can be gripped between said base and said toothed portion, and trigger-actuated means on said handle to slide said fork and screw rectilinearly relative said barrel.

3. A wire-clamping device comprising a hollow frame element forming a handle, a hollow barrel fixed to and extending from said frame and terminating in a tapered nose portion having a transversely grooved tip and a plurality of openings communicating with the interior of said barrel, an'integral fork and screw carried slidably in said barrel, said fork having a transversely serrated inner base, a cam having a toothed ,9 portion mounted rotatably on said fork, whereby a wire can be gripped between said base and said toothed portion, a disc having radially disposed ratchet teeth on a face thereof threaded on said screw, means to prevent rectilinear movement of said disc, a trigger mounted rotatably on said handle, said trigger carrying a pawl that engages said ratchet teeth and rotates said disc, means to urge said trigger towards rotation in one direction, and means to urge said pawl towards rotation in said direction.

4. A wire-clamping device comprising a frame element forming a handle, a hollow barrel fixed to and extending from said frame element and terminating in a tapered nose portion having a plurality of openings communicating with the interior of said barrel, a clamp carried slidably in said barrel, and trigger-actuated means on said handle to slide said clamp relative said barrel.

5. A wire-clamping device comprising a frame element forming a handle, a hollow barrel fixed to and extending from said frame element and terminating in a nose portion having a plurality of openings communicating with the interior of said barrel, a clamp carried slidably in said barrel, and trigger-actuated means on said handle to slide said clamp relative to said barrel.

GEORGE E. CONKLIN.

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

UNITED STATES PATENTS Number Name Date 638,823 Vander Stel Dec. 12, 1899 784,114 Moock Mar. 7, 1905 848,375 Johnson Mar. 26, 1907 942,017 Smith, Nov. 30, 1909 1,320,137 Gunn Oct. 28, 1919 1,380,323 McVay May 31, 1921 2,175,478 McKee Oct. 10, 1939 2,277,343 Medved Mar. 24, 1942 2,329,535 Hensen Sept. 14, 1943 FOREIGN PATENTS Number Country Date 544,278 Great Britain Apr. 7, 1942

Images