US2236503A

US2236503A - Wire loop forming device

Info

Publication number: US2236503A
Application number: US344751A
Authority: US
Inventors: Heidrich John
Original assignee: Individual
Current assignee: Individual
Priority date: 1940-07-10
Filing date: 1940-07-10
Publication date: 1941-04-01
Anticipated expiration: 1958-04-01

Description

Filed July l0, 1940 /w/E /KE/o/e /c/V.

Patented Apr. 1, 1941 UNITED STATES PATENT OFFICE 2,236,503 v WIRE L'ooP FORMING DEVICE John Heidrich, Los Angeles, Calif. Application July 1o, 1940, serial No. 344,751

(C1. 14o-123) i l 7 Claims.

My invention relates to la wire loop forming dev-ice and the invention herein disclosed is an improvement on the wire loop forming device forming the subject matter of my copending application for U. S. Letters Patent filed March 27, 1940, Serial No. 326,253.

The principal lobjects of my present invention are, to generally improve upon and simplify the construction of the device disclosed in my aforesaid copendlng patent application, further, to provide a wire loop forming device particularly designed for use in twisting Wire to form loops that receive and fasten fishhooks, swivels, or the like, and further, :to provide simple and eicient means that will impart the necessary degree of tension .to that portion of the wire that being twisted to form a loop.

A further .object of my invention is, :to provide a device of the character referred to having tension producing means that may be easily and quickly adjusted for producing the desired degree of ltension for wires of Idifferent sizes that are .acted upon and twisted .to provide loops.

With the foregoing and other objects in view, my invention consists in certain novel features of construction and arrangement of parts that will be hereinafter more 4fully described and .claimed and illustrated in the accompanying drawing in which:

Fig. 1 is a. side elevational view of a wire loop forming device constructed in accordance with Y my invention.

Fig. 2` is .a detail horizontal section taken on the -line 2-2 of Fig. 1.

Fig. 3 is a horizontal section taken lon the line 3-3 of Fig. l.

Fig. 3A is an enlarged cross section taken on the line 3A-3A of Eig. 3.

Eig. 4 is a horizontal section taken on the'.

Fig. 5 is an elevational view of a modied form of the adjustable tension arm forming a part of 'the wire twisting device.

Fig. 6 is a plan view of the modied i'orm of the adjustable tension producing arm.

Fig. 7 is a vertical cross section taken on the line '|-1 'of Fig. 6.

Referring by numerals to the accompanying drawing which illustrates a preferred embodiment of my invention, I0 designates a flat bar that provides a support for the operating parts of the device and formed in saidbar near vone end is a pair of reversely arranged keyholeshaped apertures for' the reception of screws |2` that are seated in a supportingl member |=3,

thus firmly holding the bar in horizontal Iposition. Obviously, other means m-ay be utilized for supporting the bar in horizontal position.

Formed on the end of bar l0 opposite from the openings II is a vertically dispo-sed bearing M flor -a shaft I5, theup'per end of which is formed intoI a crank handle 1B and the lower end of said shaft terminating in an upturne-d hook for the reception of a shhook or the member that is connected to the loop formed in a section of wire by the device.

Formed in the intermediate portion of bar I0 is a pair of vertically disposed `channels t8 that receive the parallel legs of an elongated U-shaped member |9, preferably formed from a single piece of heavy wire, and this member is adjustably mounted on bark l0 by means of a bolt 29 that passes through bar l0 and thro-ugh Ia washer 2| and the latter being clamped against the legs of member I9 by a winged nut 22 @that is seated on the threadedend of bolt 20.

Mounted for vertical adjustment on the member I9 is a metalplate 23, yone vertical edge of which is bent at Aright angles to form a flange 24, and formed in the vertical edge of said an-ge is a series of notches 25. A bolt 26 passes through plate 23 between theV legs vof member |'9 and screw seated on the threaded portion of said bolt and positioned between the legs :of member I9 is a nut 2l. I

A clamping plate 23 is provided with ari aperture for the reception lof bolt 26 and the ends of this `plate above and below the nut 21 Iare bent slightly toward plate 23 so as to engage the legsof member I9. A Winged nut 2x9 is screw seated on the threaded end of bolt 26 and when this winged nut is tightened, the plates 2'3 and 28 are clamped upon the leg-s of member I9 in properly adj-usted position One end of a tension arm 3|! is pivotally mounted. on bolt 216 adjacent plate 23 and mounted on said bolt between the head ,thereof and said arm is .a .torsional coil spring 3|. From the end of this spring adjacent the head of bolt 28 an arm 32 projects outwardly past the notched edge of iiange 24 and the louter end of said arm ter- Initiating in a loop 33. This arm 32 may be moved vertically along the notched `edge .of liange 24 and engaged in any one of the notches thereof, Ithereby varying the ydegree of torsional strains of spring 3| and consequently providing means erations. The end of the section of wire forming spring 3l and arm 32 opposite the end that extended to provide said arm is extended alongside the arm 30 and the :terminal portion of this extension is bent at right langles as designated by 34 and such bent portion extends through an aperture 35 that is formed in arm 30. This portion 34 is adapted to engage against the vertical edge of plate 23 opposite the edge provided with the iiange 24, thereby formi-ng a stop to limit the downward swinging movement of the tension arm.

Projecting outwardly from .the upper edge of arm 30 .and disposed at right angles thereto is a flange 35 and from the outer edge of this flange .the material forming ythe tension arm, and which is preferably sheet metal, is rebent and extended over the ange 35 to form a tra-nsversely inclined ange 36. The space 31 between the anges 35 and 3B gradually decreases in width to the point where said flanges unite, thus provid-ing space for different sizes of wire that are mounted upon the tension arm and which are twisted to form loops.

At the outer end of arm 3D, the end of the overlying flange 35 is separated along its side edge from the vcorrespond-ing edge of the underrlying flange 35 and the material in the end of flange 35 along this line of separation is bent upwardly to form an inclined lip 38.

Formed in `the edge of this lip adjacent `the point where the same unites with the flange 35 is a notch 39 for the reception of that portion of the wire that is formed into a coil.

Formed in the intermediate portion of flange 35 on the opposite side from the notch 39 is a pair oi spaced wire receiving notches 40.

Where my improved device is utilized for forminga loop from wire that passes through the eye of a shhook, a portion of the wire adjacent the end of the section utilized passes through one or both of the notches 4D, thence lengthwise through the .tapered space between the lian-ges 35 and 36, thence upwardly through notch 39, through the eye of the shhook, and from the latter the wire extends downward alongside the free enld of the tension arm 30.

The arm 32 that projects from .the end of spring 3l is now adjusted on the notched edge of flange 24 so as to impart torsional strains to spring 3| and lconsequently establishing the proper degree of tension or resistance to upward swinging movement of the arm 30 ,to correspond with the size of the wire that is being twisted to form a loop that engages the eye of the hook.

Crank handle IB is now engaged and rotated, thereby rotating the shhook that is engaged by and suspended from hook I1, and such a-ction coils that ponti-on of the Wire between the eye of the fishhlook and the notch 39 around the adjacent parallel portion of the Wire and this coiling action is yieldingly resisted by the tension imparted to arm 39 by the spring 3| `and also by the fnictional contact of that portion of the wire that is positioned between the

notches

39 and 49 and the underlying and overlying flanges 35 and 35 respectively.

Due to the fact that the tension arm 35 is inclined downwardly from its pivot point and the wire passes from the space 31 upwardly through notch 39, said wire as it is drawn from the space 31 will form a tight coil about that portion of the wire that depends from the eye of the fishhook downwardly past4 the free end of the tension arm and as such coil progresses, the end portion of the wire will be drawn through the notches 39 and 40 and through space 31 until the coil has reached the eye of the iishhook.

The coiling operation is terminated a short distance from the eye of the hook and thus a loop is provided that passes through and secures the eye of the hook to the wire and which latter provides a leader between the hook and line. Obviously, the device may be used in forming loops at the ends of wires that engage rings, swivels, and the like.

To increase the torsional strains in spring 3l and consequently increase the tension or resistance to upward movement of the arm 3D, it is only necessary to move the outer end of arm 32 upward and engage it in one oi the upper notches 25 in flange 24 and which procedure is carried out when the device is utilized for forming loops in the larger sizes of wire.

In the modified construction illustrated in Figs. 5, 6, and 7, a tension arm 43 is pivoted at one end to a plate 44 that corresponds with plate 23 and which is adjustably mounted on member I9 and the outer portion of said arm 43 is provided with a ange 45 that is disposed substantially at right angles to said arm.

Arranged beneath the flange 45 and projecting through an opening 46 that is formed in the upper portion of arm 43 is a transversely disposed plate 41. That portion of the plate that projects through opening 46 is rebent so as to provide an inclined lip 48 that underlies the plate 41 and thus, a wedge-shaped space 49 is formed between said lip and the adjacent portion of the plate for the accommodation of wires of different slzes.

Passing downwardly through flange 45 and through a short longitudinally disposed slot 50 that is formed in plate 41 is a bolt 5I on the threaded end of which is located a nut 52. An expansive coil spring 53 is arranged on bolt 5| between the nut 52 and the under side of plate 41.

Lips 54 are pressed downwardly from ilange 45 to the sides of plate 41, thereby providing guides for said plate in its transverse sliding movement beneath said flange and the spring 53 bearing against the under side of the sliding plate produces a certain degree of yielding pressure that resists such sliding movement.

Where this form of tension arm is utilized, the wire that is to be twisted to form a loop has its end portion extended through the wedge-shaped space 49 and from the edge of the plate the Wire extends upwardly, thence through the eye of the lishhook or swivel, thence downwardly past the free end of the tension arm.

Thus it will be seen thatl I have provided a wire loop forming device that is relatively simple in construction, inexpensive of manufacture and very effective in performing the functions for which it is intended.

It will be understood that minor changes in the size, form and construction of the various parts of my improved wire loop forming device, may be made and substituted for those herein shown and described, without departing from the spirit of my invention, the scope of which is set forth in the appended claims.

I claim as my invention:

l. In a wire loop forming device, a support, a shaft journalled on said support, a hook on the lower end of said shaft, a member mounted for vertical adjustment on said support, a plate mounted for vertical adjustment on said member, anr arm pivoted on said plate, means on said arm for receiving and holding a wire that is to be twisted to form a loop and adjustable means for yieldingly resisting upward swinging movement of said arm.

2. In a wire loop forming device, a support, a shaft journalled on said support, a hookon the lower end of said shaft, a member mounted for vertical adjustment on said support, a plate mounted for vertical adjustment on said member, an arm pivoted on said plate, the free end of which arm terminates at a point below the hook on said shaft, the upper portion of said arm being provided with a slot that is wedgeshaped in cross section for the accommodation of wires of diierent sizes and adjustable means for yieldingly resisting upward swinging movement of said arm.

3. A wire loop forming device as set forth in claim 2 and there being wire receiving notches formed in the upper portion of said arm above the wedge-shaped space therein.

4. In awire loop forming device, a support, a vertically disposedshaft journalled on one end of said support, a hook on the lower end of said forr receiving and holding a wire, a torsional spring on said bolt, one end of which spring is seated in said pivoted arm, an arm projecting from the other end of said spring, a flange on said plate and the free edge o` which flange is notched for the reception of the arm that projects from said spring.

5. In a wire loop forming device, a substantially T-shaped support, means on the horizontal portion of said support for rotating a member to which a loop of wire is to be attached, a plate adjustably mounted on the vertical portion of said support, an inclined arm pivotally mounted at one end on said plate, the free lower end of which arm occupies a position below said rotating means and means associated with the pivoted end of said arm and said support for yieldingly. resisting the upward swinging movement of said arm.

6. A wire loop forming device as set forth in claim 5 and with means on said arm for receiving and holding the wire that is to be twisted to form a loop that engages the member carried by said rotating means.

7. A wire loop forming device as set forth in claim 5 and with means for limiting the downward swinging movement of said arm.

JOHN HEIDRICH.