US2494963A - Hand grip tool for making and applying wire hose clamps - Google Patents

Description

JME. 11?, 111 c, RAY

HAND GRIP TOOL FOR MAKING AND APPLYING WIRE HOSE CLAMPS Filed June 28, 1946 CHARLES W- RAY Patented Jan. 17, 1950 UNITED HAND GRIP TOOL FOR MAKING AND APPLYING WIRE HOSE CLAMPS Charles W. Ray, Paducah, Ky.

Application June 28, 1946, Serial No. 680,179

3 Claimsr (Cl. 81--9.3)

This invention relates to wire clamp tools, and I more particularly to a tool for fabricating. and applying wire clamps for hose connections and the like.

A main object of the invention is to provide a novel and improved wire clamp tool of relatively simple construction which is easy to operate and which is very efiicient in performance.

A further object of the invention is to provide an improved tool for fabricating and applying wire clamps to various types of hose connections and for binding together various objects, said tool including means for forming the wire clamp to its preliminary shape, coiling the clamp for engagement with the object to be secured, tightening the clamp to secured position, locking the clamp in its tightened condition, and depressing the free end portions thereof into flush relationship with the adjacent surfaces of the secured object.

Further objects and advantages of the invention will become apparent from the following description and claims, and from the accompanying drawings, wherein:

Figure 1 is a side elevational view of a clamping tool constructed in accordance with the present invention.

Figure 2 is a longitudinal cross-sectional view of the tool of Figure 1.

Figure 3 is a top plan view of the tool of Fi we 1.

Figure 4 is a vertical cross-sectional detail view of the coil winding structure employed in the tool of Figure 1, taken on line 4-4 of Figure 8.

Figure 5 is a detail view of the end portion of the tool taken on line 5-5 of Figure 1.

Figure 6 is a cross-sectional detail view taken on line 6-6 of Figure 3.

Figure '7 is an enlarged detail view showing a coil forming member employed with the coil winding drum of the tool of *Figure 1.

Figure 8 is a side elevational detail view, partly in cross-section of the coil forming structure employed in the tool of Figure 1, Figure 8 being taken on line 8-8 of Figure 4.

Figure 9 is a transverse cross-sectional view taken on line 9-9 of Figure 1.

Referring to the drawings, ll designates an elongated body member comprising parallel side walls l3, l3 extending from one end to the other end of the body member. Secured between the side walls [3 adjacent one end of the body memher II is a filler block 14- of suitable rigid material such as plastic, wood, or the like.

J ournalled in the intermediate portion of body member H is a transverse shaft 15, which extends through the walls l3, l3 and extends outwardly a substantial distance at one side of the body member. Keyed on shaft I5 between the walls l3, I3 is a gear [6. Pivotally mounted on said shaft outwardly adjacent the walls l3, I3 is a lever member ll having a downwardly concave channel-shaped handle portion 18 which overlies the rear portion of body member I I and is formed to fit thereover. A leaf spring 19 is secured at one end to the lever member I1 and bears on the top surface of block I4, thereby biasing lever member H to a raised position. The pivotal mounting of lever I1 is obtained by a pair of side lugs l2, I2 carried by said lever which rotatively engage shaft l5. Said side lugs [3 on each side ofthe body of the tool, the outwardly projecting ends of said shaft being each formed with a notch 24.

Pivotally secured to lever I1 is a pawl 25 which is biased into ratchet engagement with the gear teeth of gear is by a leaf spring 26 secured to the end of block member [4. When lever I! is 7 moved downwardly, pawl 25 rotates gear 16 and thereby causes gear 23 and shaft 24 to be rotated counterclockwise, as viewed in Figure 2.

Secured between the forward end portions of walls l3, i3 is a nose member 23 formed with a transverse V-notch 21 at its forward end. Secured to the rearward portion of nose member 26 is a rearwardly extending leaf spring member 29 which engages gear 23 with ratchet cooperation therewith, allowing said gear 23 to be rotated counterclockwise but preventing clockwise rotation thereof.

Rotatively journalled in nose member 26 is a transverse pin 30. Welded to the externally projecting ends of pin 30 are a pair of lugs 3|, 3| carried by a channel-shaped lever member 32 which is adapted to underlie and receive the bottom edges of walls l3, l3. Provided on each side of nose member 26 above and below pin 30 are a pair of shearing lugs 33, 33. Formed in pin 30 adjacent each pair of shearing lugs is a bore 34 adapted to receive a wire therethrough. When the wire is positioned in the bore it may be sheared off by rotating lever member 32 downwardly, thereby causing shearing cooperation to occur between bore 34 and a shearing lug 33.

Rotatably mounted on shaft is a drum 35. Pivotally secured to the end of drum 35 at 36 is a handle 31. Handle:3-'l5isiiformed with-an aperture 38 encircling shaft [5. Said apertureis provided with a shoulder 39 and adjacent shoulder 39 said shaft is formed with a cooperating shouldered recess 40 shaped to engage with shoulder T39 when handle member 31 is rotated counterclockwiseras While a specific embodiment of a wire clamp tool has been disclosed in the foregoing description, it will be understood that various modifications within the spirit of the invention may occur to those skilled in the art. Therefore, it is intended that no limitations be placed on the invention other than as defined by the scope of the appended claims.

What Iaclaimlis: 1

1. A tool for fabricating and applying a wire clamp to a hose comprising an elongated body member, a shaft disposed transversely in said 'body member and carried by the latter, a drum v.:rotatablymounted on said shaft adjacent an end viewed in Figure 8. In this direction .of rotation J5 ,thereof, said drum being provided with a pair of the handle 3! shaft l5 may be rotated thereby. In the opposite directionzofrotation .of-handle 31 drum 35 is rotated independently of shaft "a' tail memberwl formedwith an end spur A'J-and a pair of notched side spurs- 46, 46.

In forming the clamp, :a length 'of wirexis 'cut off and isbent-intoU-shape. Forthis purpose the lower edges of lever member H are notched,:as :shown at 4l,and the adjacent top surface of :body

member H is formed with a transverse groove 18. The mid portion of ,the length of 'wireris placed -'in groove 4'8 andrhandle I8 is depressed,

J causing notches *41'to engage thewire 'and bend 'said wireto the requiredu s'hape. "The free ends o'f the U -shaped*wire are then insertedtin recesses 4 I of 'drum 35-an'd thehandle 3'lis rotated clockwise as viewed in Figure '8, causing the wire'ito'be coiled 'on the drum to its desired clamping 0011- 'figuration. "The coil=wire isthen removedfrom the drum-and is :engaged aroundthe object :to "be clamped, the free ends of the coil1beingrpositioned under the transverse straight :center por- 'tion thereof. Said-free ends are then threaded through bores-3'4, 3'4 ofthe nose pin1member'30 and 'are respectively inserted in the notches I24, '24 of shaft-Z2. With the u-shape'dtnotch .-21cof the nose member in engagement with the trans- "verse straight center portionof the wire Lloop,

handle 3Tis rotated counterclockwise as viewed in Figure 8, causing the free-:endspf'fthe wire'to -be coiled on the laterally projecting. ends :of shaft 22. When the clamp has been;drawn approximately to the desired degree of tightness on :the

I object engaged thereby additional tension is applied thereto by moving :handle :l-B downwardly several times until the :"final :desired tightness 'of the clamp is obtained. The entire tool is :then rotated forwardly over the "fulcrum provided by the transverse straight center :portion of the wire loop, thus bending the wire adjacent said straight portioninto reversed position. Lever 32 is then rotated, wherebythe superfluous wire =is sheared off. The free ends of the wire clamp are then depressed "into substantiallyflush position into'the surface of the object by'hooking spur 45'of the tail member 44=under the straight transverse portion of "the clamp, engagingthe respective wire ends in the notched sidespurs-A'B, 46 and rotating .the tool 'downwardly,'thus em- .bedding said wire ends .inthesurfaceof'the object.

of recesses arranged in spaced parallel relation and *EXtGIldiI'lE inwardly from the periphery thereof for the reception therein of the ends of "a 'U-shaped wire, a handle having an aperture encircling said shaft and pivoted to the outer end :of ='said drum operable :upon rotation in :a clockw ise tdirectionito'rthereby convert the :U-shaped wire-intoawire loop,: aigear carried by saidshaft,

a second shaft disposed transversely in said-body rmember; an'dxarranged'in spaced relation withrer-spect' to saidfirst-named shaft, 'aisecond gear car- :riedby saidsecond shaft andinmeshing engagement with 'said first-named geanax-nose member ron the end of said :body member adjacent .said :second' shaft for supportingithe:intermediate portion 'of the wire loop, a transverse pin .on said nose member, said pin having .a pair of .transversely extending :bores :arranged in spaced parallel *relationfor the passage of "the ends of said -wire"loop therethroughgsaid second-named shaft havin'g each of its ends projecting beyond said ibody member, each of thezprojectingends 'of said second-named shaftlbeing provided with. anotch,

' the'notches of' sai'd second shaft being in alignclamp to '-a hose comprising an elongated body member, a shaft disposed transversely in said body member and carried by thelatter, a drum rotatably mounted on said shaft adjacent an "end thereof, said drum being provided witha pair of recesses arranged in spaced parallel relation and-extending inwardly from the periphery thereof for the reception thereinzoftthe ends .of a U- s'haped wire, 'ahandle having an aperture encircling said shaft and pivoted to ithe .outer end of 'FGWSaid drum operable upon :rotation in xaclockwise :direction :to thereby convert the U-shaped wire into a wire loop, :asgearcarried bysaid shaft, "a 'second shaft*disposedtransversely of -'said body memberand arranged in spacedrelationwithvrespect to said first-named shaft, :a second gear carried by said second shaft and in meshing en- -'ga'gement with said first-named gear, a nose member on the end of 'said bodymemberadjacent said second shaft for supporting the intermediate IO portion of the'wireloop, atransverse pin 'on said nose memben-said'pin having a pair of transversel-y-extending bores arranged 'in spaced parallel relation for the passage of "the ends of said wire 'looptherethrough said second-named shaft having each 'o'f its en'ds projecting beyon'd said :b'ody member, each of the projecting ends of said second-named shaft being provided with a notch, the notches of said second-named shaft being in alignment with the bores in said pin and receiving the ends of said wire 100p, co-actin means embodying a shoulder on a wall of the aperture of said handle and a shouldered recess on said first-named shaft operable upon rotation of said handle in a counter-clockwise direction for connecting said drum to said first-named shaft to thereby cause the coiling of the ends of the loop in the notches of said second-named shaft about the latter, a shearing lug on said nose member arranged in alignment with each of the bores in said transverse pin, and a lever member carried by said transverse pin operable upon rotation downwardly to shear the wire ends.

3. A tool for fabricating and applying a wire clamp to a hose comprising an elongated body member, a shaft disposed transversely in said a body member and carried by the latter, a drum rotatably mounted on said shaft adjacent an end thereof, said drum being provided with a pair of recesses arranged in spaced parallel relation and extending inwardly from the periphery thereof for the reception therein or the ends of a U- shaped wire, a handle having an aperture encircling said shaft and pivoted to the outer end of said drum operable upon rotation in a clockwise direction to thereby convert the U-shaped Wire into a wire loop, a gear carried by said shaft, a second shaft disposed transversely in said body member and arranged in spaced relation with respect to said first-named shaft, a second gear carried by said second shaft and in meshing engagement with said first-named gear, a nose member on the end of said body member adjacent said sec-- ond shaft for supporting the intermediate portion of the Wire loop, a transverse pin on said nose member, said pin having a pair of transversely-extending bores arranged in spaced parallel relation for the passage of the ends of said Wire loop therethrough, said second-named shaft having each of its ends projecting beyond said body member, each of the projecting ends of said second-named shaft being provided with a notch, the notches of said second-named shaft being in alignment with the bores in said pin and receiving the ends of said wire loop, co-acting means on a Wall of the aperture of said handle and on said first-named shaft operable upon rotation of said handle in a counter-clockwise direction for connecting said drum to said first-named shaft to thereby cause the coiling of the ends of the loop in the notches of said second-named shaft about the latter, a lever pivotally mounted on said firstnamed shaft and operatively connected to said first gear operable upon downward movement to thereby tension the coiled ends of the loop, and resilient means operatively connected to said lever for biasing the latter to its normal position.

CHARLES W. RAY.

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

UNITED STATES PATENTS Number Name Date 919,260 Smith Apr. 20, 1909 1,380,323 McVay May 31, 1921 1,442,403 Gunn Jan. 16, 1923 1,543,338 Neal et a1 June 23, 1925 2,075,720 Hofimann Mar. 30, 1937 2,175,478 McKee Oct. 10, 1939 FOREIGN PATENTS Number Country Date 175,757 Great Britain Feb. 23. 1922

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