US2443564A

US2443564A - Machine for twisting wire for use in brick cutting

Info

Publication number: US2443564A
Application number: US709960A
Authority: US
Inventors: Earl H Kunkle; Lonnie B Brown
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-11-15
Filing date: 1946-11-15
Publication date: 1948-06-15
Anticipated expiration: 1965-06-15

Description

June 15, 1948. KUNKLE r AL 2,443,564

MACHINE FOR TWISTING WIRE FOR USE IN BRICK CUTTING Filed Nov. 15, 1946 2 Sheets-Sheet l Earl lilfunhle June 1943- E. H. KUNKLE ,ETAL

MACHINE FOR TWIS'IING WIRE FOR USE IN BRICK CUTTING 2 Sheets-Sheet 2 Filed Nov. 15, 1946 Earl ILKunhle LonnieB.Br0u/n Patented Jvine 15, 1948 MACHINE FOR TWISTING-WIRE non USE IN -BRICK CUTTING Earl H; Kunkle and Lonnie B. Brown,

" Statesville, N.

Application November 15, 1946, Serial 799,969

Our invention relates to a simple, hand. operated machine for twisting short wire lengths in general and more particularly to making such wire lengths intended for use for cutting bricks in brick making plants.

Such a wire length has a large loop at each end, and next thereto a tight twist followed by a small eye or straight portion 'andfollowed by a loose twist and then the rest of the wire straight and single.

Any length of wire can be formed and twisted by this machine by allowing 5%; inches to take care of the twist and loop at eachend, so that, if the finished or over all length is to be 16 inches, the wire from which it is to be made should be 21 /2 inches or 16 plus 5 /2.

Objects and advantages of this machine will be found in the subjoined description with the aid or" the attached drawing, wherein one embodiment of the invention is illustrated.

Figure 1 is a top plan view of the machine;

Figure 2 is a front elevation of Figure 1;

Figure 3 is a left hand end view of Figure 2;

Figure 4 is a fractional section taken along line 4+4 of Figure l;

Figure5 is a top plan view of Figure4 with the twisting arm removed and one type of. loop at the end of the wire;

Figure 6 a top plan view of another type of 100p;

Figure 7 a side view of a split or slip over needle; and

Figure 8 an axial section, a vertical plane along line 8-8 of Fi ure 1.

In the drawings, where like numerals denote the same details in the different views, numeral l represents a rectangular base or stand for the portable machine at one end of which a supporting bracket I I is secured for a lower wire clamping jaw I2, held down as'by screws I3.'"The bracket, as here shown, consists of a short piece of angle iron to the outer side of which is bolted an upwardly. directed arm M for the clamping lever 'l 'pivoted'thereon by a'pin' It. To the end of said clampin lever i5the clamping handle I! is hinged as at I8 and said handle has aforward extension or nose i9 adapted, during operation, to contact with the underside of the edge at Zil'of'the bracketl I.

On the underside of the clamping lever I5 is bolted the upper jaw 2| which, as well as'the lower jaw I2, is suitably case'hardened. "The underside of the upper jaw 2| provided with a small, recess 22 which is adapted toreceive the point of the tapered 'drop pin '23',"which' is urged 9-Claixns. (01. 149 -149 2 upwardly by a 0011 spring 24 housed in the recess 25 of the bottom jaw I2 which is in alignment with recess22 in the upper jaw.

At the farther end of the base ill, is shown, integral therewith, an upstanding wall 21 on which is bolted a cylindrical bearing member 28, for carrying slidably therein, a shaft 29 of about 1% inch diameter and secured in adjusted axial position b'y' a pair of set screws at. This adjustment is. rovided for "obtaining different lengths or the twisted portion of the wire.

The other end oithis shaft 29. is tapered down on'one side as at 3| near thefixed jaw I2, to form a seat for the loop, forming stud 32, threaded therein and "provided with a loose-fitting collar 33 to facilitate detachment from the formed loop on the wire. D uringoperation this shaft 29'and stud 32 remain stationary after having been adjusted and clamped. Around thei'shaft 29 is provided a sleeve 35' running/loose thereon between'two collars 3G'," 31 secured tothe shaft by set screws 38. This sleeve has a pairof radially directed bearing lugs 39 carryin'g'a hinge pin 40 upon which 'a'Wire twisting arm 4] is mounted to rock. 'This arm 4| has attached thereto by a bolt 44 at its free' end, a wire holding needle '42 or 42a; see Figures 4 and '7, with an eye 43eng'age'd by said bolt 44 for an gular Iadjustmenft in the plane of the twisting rm There are two, types of needles'shown' in Figures 4 and 7respectively.

One straight'needle 42 with an eye 43' adapted to be'inse'rtedwith its point between two parallel Wir'es'45' which ar toTbet-Wisted. The eye 43 engaged by bolt44fisf'secured on the end of the twisting arm 41 as in Figure 4, wherein it is shown that the point of the needle can be placed slightly out of the perpendicular. The reason for this is, that the twisting arm 4|, when liftedfor disengagement of the Wire 45 follows a curved path, and fer this reason the needle point is set pointing to the/rear. "In Figure '7 is illustrated a modified needle 42a similarly secured by the bolt 44 engaging in its eye" 43 as before, but instead of being pointed this needle is bifurcated or provided "with 'two' parallel prongs" 46 which are slipped overthe twowires45, instead of engaging between them toholdthem firmly during operation. i

Upon, revolvable sleeve 35., on the stationary shaft 29,- i' s'" carried a gear wheel 4-1, which' is pinned fast behmd" the lugs 39',-'and in front -o'f the fixed collar "3'6.""' It"-Will thus seen that when the gear wheern; is l'n'll l'i'd -the''sleve 35 Wi-th the twisting arm 41, together with needle 42, will rotate around the axis of the stationary shaft 29. In mesh with the gear wheel 41 is a driving gear wheel '48 which is rotatably supported upon a standard 50 forming a part of a laterally extending bracket 49 secured in any suitable manner on the base ID, as seen in Figures 1, 2 and 3. The upper end of the standard 50 has a bearing pin 5! upon which the hub 52 of the gear wheel 48 is mounted to rotate. A crank handle 53 is provided for turning the gear wheel 48 which is secured on one side thereof by studs 54. In the drawings the

gear wheels

41 and 48 are shown as toothed wheels, but it is evident that they could be connected in other manners such as by a cross V-belt.

In the operation of the machine, the wire 45 is first placed across the jaw or anvil 12 on one side of the pin 23, with a portion of the Wire extending a substantial distance beyond the jaw and on one side of the stud 32. This extended portion is then bent back around the stud 32 and the end is brought back across the jaw upon the other side of the pin 23. The long and short portions of the wire are then held together with the fingers of the operator while the lever I5, which had previously been swung over to the left to remove the uper jaw 2! from over the lower jaw I2, is swung back and down to put the upper jaw on the wire portions. ihe nose of the handle is then engaged under the flange 2B and pressure applied to the handle 11 to force the jaws l2 and 2| together so as to firmly grip the two wire portions located between the jaws and separated by the pin 23.

The needle arm, which at the start of the operation had been swung upwardly and to the right to rest against the gear 41, is then swung back and down to the position in which it is shown in Figures 2 and 4 and the needle 42 is passed between the two portions of the wire, between the drop pin 23 and the stud 32. While the looped portion of the wire is thus engaged around the stud 32 and the two portions lying on opposite sides of the drop pin '23 are gripped between the jaws, rotation is then imparted to the gear 41 which will result in turning the arm 4! around the shaft 29. Accordingly it will be readily seen that the two portions of the wire between the stud 32 and the pin 23 will be twisted together in the manner shown in Figures 4 and 5. After the desired number of twists the pin can be removed by giving a slight reverse rotation to the gear 4'! and then swinging the arm upwardly and over to the right to its former or starting position. By then lifting the loose fitting collar 33 the loop or eye of the twisted wire will be slipped off of the stud 32. There is thus obtained a double twisted non-slipping wire.

The formation of the type of a loop of wire as indicated in Figure 6, where the intermediate portion 55 remains straight, instead of having a small opening as in Figure 5, this is accomplished by the use of a needle 42a of the character shown in Figure '7, which is bifurcated and holds the straight wire portion 55.

It is to be understood that the invention as herein disclosed may be varied from the details described and shown without departure from the spirit of the subl'oined claims.

We claim:

1. A wire twisting machine, comprising a base member, a non-revolvable, means supporting said shaft on said base member, spaced elements for holding a piece of wire doubled to form two portions, one of said elements being carried uponan end of the shaft, and means for engaging said wire portions between said holding elements and for twisting said wire portions together while said holding elements remain stationary.

2. A wire twisting machine as described in claim 1, wherein said twisting means consists of an arm, a needle on said arm for engaging said wire portions, and means for revolving said arm with the needle around the axis of said shaft.

3. A wire twisting machine as described in claim 1, wherein said twisting means consists of an arm, a needle :on said arm for engaging said wire portions, means for revolving said arm with the needle around the axis of said shaft, and a sleeve on said shaft provided with a pivot bearing for supporting said arm to permit oscillation thereof in the plane of the axis of said shaft.

4. A wire twisting machine as described in claim 1, wherein said twisting means consists of an arm, a needle on said arm for engaging said wire portions, means for revolving said arm with the needle around the axis of said shaft, a sleeve on said shaft provided with a pivot bearing for supporting said arm to permit oscillation of the arm in the plane of the axis of said shaft, and means for revolving said sleeve and arm around the axis of the shaft, while said needle engages the wire portions between the holding elements.

5. A wire twisting machine as described in claim 1, wherein said twisting means consists of an arm, a needle on said arm for engaging said wire portions, means for revolving said arm with the needle around the axis of said shaft, a sleeve on said shaft provided with a pivot bearing for supporting said arm to permit oscillation of the arm in the plane of the axis of said shaft, the axis of said shaft, and said needle being pointed for entrance between said portion of the doubled wire.

6. A Wire twisting machine as described in claim 1, wherein said twisting means consists of an arm, a needle on said arm for engaging said wire portions, means for revolving said arm with the needle around the axis of said shaft, a sleeve on said shaft provided with a pivot bearing for supporting said arm to permit oscillation of the arm in the plane of the axis of said shaft, and said needle being bifurcated for straddling the two portions of the doubled wire.

7. A wire twisting machine as described in claim 1, wherein said holding elements comprise a stud on the said end of said shaft around which stud the wire is looped, and clamping jaws for gripping the two portions of the doubled wire.

8. A wire twisting machine as described in claim 1, wherein said holding elements comprise a stud on the said end of said shaft around which stud the wire is looped and a pair of clamping jaws for gripping the two portions of the doubled wire, said. twisting means consisting of an arm, a needle on said arm for engaging said wire portions, a sleeve on said shaft provided with a .pivot bearing for supporting said arm for os- =cillation in the plane of the axis of said shaft, and means for revolving said sleeve and arm around the axis of the shaft whereby said needle engaging wire portions between the holding elements is revolved around said axis to twist the wire portions together, said needle being pointed for entering between the portions of the doubled WlI'e;

9. A wire twisting machine as described in claim 1, wherein said holding elements comprise EARL H. KUNKLE. LONNI-E B. BROWN.

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

UNITED STATES PATENTS Number Name Date Dederick May 9, 1876 Alvey June 9, 1896 Hartman July 10, 1900 Fodor Oct. 27, 1908 Rodgers Nov. 3, 1908 Boenning Sept. 27, 1921 Brannaka Apr. 1, 1930