US718961A

US718961A - Forming-tool.

Info

Publication number: US718961A
Application number: US10292002A
Authority: US
Inventors: Walter C Yeatman; Charles Fredric Messinger
Original assignee: CHICAGO NUT Co
Current assignee: CHICAGO NUT Co
Priority date: 1902-04-14
Filing date: 1902-04-14
Publication date: 1903-01-20
Anticipated expiration: 1920-01-20

Description

No. 718,961. PATENTED JAN. 20,1903.

W. G. YEATMAN & C. F. MESSINGER. FORMING TOOL.

APPLICATION FILED APR. 14, 1902 N0 MODEL.

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Zl Lfiieases s z, a flidrfg W i V MM WALTER C. YEATMAN AND CHARLES FREDRIC MESSINGER, OF CHICAGO, ILLINOIS, ASSIGNORS TO TIIE CHICAGO NUT COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

l 'ORlvllNG TOOL.

SPECIFICATION forming part of Letters Patent No. 718,961, dated January 20, 1 903.

Application filed April 14, 1902. Serial No. 102,920. (No model.)

To whom it may concern.-

Be it known that we, WALTER O. YEATMAN and CHARLES FREDRIC .MESSINGER, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Forming-Tools, (Case No. 3,) of which the following is a full, clear, concise, and eX- act description, reference being had to the accompanying drawings, forming a part of this specification.

Our invention relates to tools for forming or bending metal wire or the like.

Prominent objects of the invention are to permit and arrange for the bending or forming of wire or other material in a generally similar form into desired shapes or forms, especially such as involve hook or loop portions and closed eyes, and to accomplish this result in a simple, practical, inexpensive, and eifective manner.

In the accompanying drawings we have shown and in the specification we will describe a tool for forming wire into hook-shaped objects commonly known as cable-hangers. It will be understood, however, that we do not wish to limit our invention to a tool for forming this specific form of device, as the principles of construction and operation of the tool are capable of application for other purposes.

In the accompanying drawings, Figure 1 is a vertical section taken through a tool embodying our present invention. Fig. 2 is an elevation of one part of the tool. Fig. 3 is an elevation of the other part. Fig. 4 is a view of a cable-hanger such as the present tool is adapted to construct.

The tool shown in the drawings consists of two parts A and B, of which the part A is intended to be fixed upon the bed of a machine having a reciprocating member and the part B is intended to be carried by the reciprocating member and given a reciprocation toward and away from the part A, which for convenience will be called the stationary member.

The stationary member A is provided with a flat plate-like base 1,-adapted for attachment to the bed of the machine. On the base 1 is arranged a vertically-disposed plate 2,

and this is held and secured firmly in position on the base 1 by lugs or elevated portions 3 3 and 4 1, conveniently formed integrally with the base 1 and arranged on opposite sides of the plate 2. The plate 2 is provided with a flat abutment 5, having its top 6 rounded and having one side 7 curved concavely, as indicated in Fig. 2. This flat abutment is secured firmly, as by screws 8 8, to the inner side of the plate 2. At the right-hand side of the plate 2 is arranged a swinging cam 9, mounted on a pivot.10, fitted into opposite abutmeuts or

lugs

3 and 4. This cam 9 has its inner face 11 made concave. It is subject to a sliding rod 12, which has one of its ends resting upon a rear abutment 13 on the cam and has its other end extended out to the left-hand end of the plate 2. A flat spring 14 rests and presses against this outer end of the sliding rod 12 and tends to normally force the same inwardly, so as to push or swing the cam 9 in an outward direction. The spring 14: is secured to a bracket 15, mounted on one of the lugs 3, and extends across the base from such lug to the rod 12. A bracket 16 is scoured to the plate 2 at one side thereof. This bracket 16 has a transversely-extending portion or flange 17, having an aperture for the wire or other material to be fed to the tool. On the opposite side of the plate 2 is secured a fiat plate 19, which serves as a stop for the wire, as shown in Fig. 2. The base 1 is also provided on the side opposite to the plate 1 with a standard 20, securely held in place, as by a bolt 21. The standard 20 has its upper end bent inwardly, as at 22.

The reciprocating member B is constructed with a cylindric end 24, adapted to fit into the reciprocating member of the machine, and also with a head below the cylindric end 24 and desirably formed integrally therewith. The head 25 is constructed with a downwardly-extending flange portion 26, and to this flange 26 is secured a support in the form of a flat plate 27. On the inner side of the support 27 is secured, as by screws 28 28, a bending or forming plate 29, having a concave face 30 and rounded ends 31 and 32, whereof the end 31 is lower than the end 32. The support 27 is also provided with a pin 33 arranged below the rounded end 32 of the forming-plate 29. The head 25 of the member B is also provided with a block 34, secured to the flange 26 by a screw 35, and this block 34 carries a cutter 36, secured thereto by screws 27 27. The cutter 36 has a cutting edge at its lower end. The head 25 is also provided with a guide strip or block 38, se-

cured to the support 27, as by rivets 39 39'.

The cutter 36 and guide-block 38 are so situated as to fit between the flange 17 on the bracket 16 and the stop 19 at the other end of the plate 2 on the base A, and the cutter is adapted to have its cutting edge come opposite the aperture in the flange 17, through which the wire passes. The reciprocating member B is also provided with a rear block 40, secured to the flange 26, as by a bolt 41, and this block 40 has in its lower portion a slide-rod 42, arranged to slide back and forth. The inner end of this slide 42 is secured to a plate 43, from which project three pins 44 44 44, Figs. 1 and 3. These pins 44 44 44 are adapted to slide in the support 27 and are of such length that when the plate 43 is in its backward position-that is, against the block 40the forward ends of the pins are flush with the forward face of the support 27. Springs 45 45 are interposed between the plate 43 and support 27, tending to hold the latter in its backward position. Screws 46 46 are fitted into the support 27, so as to serve as guides for the sliding plate 43. The pins 44 44 are located as indicated in Fig. 3, two of them being on the inner side of the concave portion of the forming-plate 29 and the other being below the pin 33. The outer end of the slide 42 is adapted to strike against the bent end 22 of the standard 20 when the reciprocating member 13, is raised to its upper position.

The tool thus constructed operates as follows: The wire X, from which the hangers are to be made, is fed through the aperture in the flange 17 until it strikes against the stop 19, it being understood that the machine is provided with any suitable form of feeding mechanism for thus feeding the wire. At this point the reciprocating member B descends and the cutter 36 cuts the wire off just inside of the flange 17. Afurther descent of the member B causes the pin 33 to strike against one side of the wire and bend it down along the straight face of the abutment 5, the wire during such descent naturally bending V about the pin 33, as indicated in dotted lines in Fig. 3. The descent of the memberB also causes the end 31 to strike against the other side of the wire, thereby bending it about the abutment 5, so that it lies in position between the end portion 31 and concave face 30 of the forming-plate 29 and the concave face 7 and round end 6 of the abutment 5. When the member B has reached about the bottom of its descent, the inclined end of the guideblock 38 strikes against the cam 9, thereby swinging said cam inwardly against the slide 12,and this inward swinging movement causes the concave face 11 of this cam to strike against the end portion of the wire, which is bent up around the pin 33, (indicated in dotted lines, Fig. 3,) and swing such end portion inwardly toward the adjacent part of the wire, thereby forming the eye of the hanger. The hanger thus being completed rises with the member B when the latter rises, being held thereby, as indicated in Fig. 3. At the top of the ascent the end of the slide 42 slides against the bent end 22 of the standard 20, whereupon the slide 42 is forced inwardly, thereby moving the sliding plate 43 and pins 44 inwardly and causing the pins to project from the front face of the support 27 and strike against the hanger at different points, thereby ejecting it. The hanger, after its ejectment, slides down an incline 48 on the top of the plate 2. Each subsequent reciprocation of the member B causes the formation of another hanger in the same manner.

It will be understood that while we speak of the member B as the reciprocating member, this need not necessarily be so, as the other member can be reciprocated and the member 13 held stationary.

Other modifications and changes may be made in the particular device herein shown and described without departing from the spirit of our invention, and the principles of construction and operation herein employed for making hangers of this kind can be employed for making other devices embodying more or less the same features of construction.

What we claim as our invention is-- 1. The combination with a pair of relatively reciprocable members, of means thereon for bending the material into a double U, and means for bending a side of one of such Us to form an eye.

2. The combination of a pairof relatively reciprocable members, means thereon for bending the materialinto U shape, and means for bending one side of such U toward the other to form an eye.

3. The combination with a pair of relatively reciprocable members, of means on one of such members for engaging the material and bending the same into U form, a pivoted device, and means for actuating said pivoted device so as to act upon one side of such U and thereby form an eye,substantially asset forth.

4. The combination with a pair of relatively reciprocable members, of a pin carried by one of such members and adapted to engage the material and bend the same into U form, a pivoted device on the other member adapted when swung to strike one side of such U and bend the same to form an eye, means for holding said pivoted device normally out of bending position, and means for swinging the same to cause the bending operation, substantially as set forth.

5. The combination with a pair of rela- TIO tively reciprooable members, of a pin carried by one of such members and adapted to engage material to bend the same into U form, a swinging cam carried by the other member and adapted to bend one side of the U to form an eye, a spring-controlled device for holding the cam out of bending position, and an abutment adapted to strike the pivoted cam and swing the same to bend the material, substantially as set forth.

6. The combination of a stationary member having a cam 9 pivoted at 10, and a reciproeating member having a pin 33 adapted to engage and bend the material into U form, and also having an abutment 38 adapted to strike the pivoted cam 9 and swing the same so as to bend one side of the U into an eye, substantially as described.

7. The combination with a pair of relatively reciprocable members, of an abutment 5 carried by one of said members, a forming plate 29 having a concave face 30 carried by the other member, a pin 33 carried by the lastmentioned member, and means for bending the outer side of the U formed by the pin 33 to form an eye, substantially as set forth.

8. The combination with a pair of relatively reciprocable members, of an abutment 5 carried by one of said members, a formingplate 29 having a concave face 30 carried by the other member, a pin 33 carried by the lastrnentioned member, a pivoted device carried by the first-mentioned member, and an abutment on the last-mentioned one for actuating said pivoted device.

9. The combination with a reciprocable member, of a slide 42 carried by said member, a plate 43 secured thereto, pins 44, 44, attached to the slide 42, springs 45, 45, to hold the plate in retracted position, and a standard having an inclined end 22 adapted and arranged to strike against the slide 42.

10. The combination of a stationary member provided with an abutment 5 and also with a swinging cam 9, a slide 12 adapted to act upon said cam 9, a fiat spring 14 controlling the slide 12, a flange 17 provided with a feed-aperture for the material, a stop 19 opposite the flange 17, a standard 20 mounted upon the stationary member A and havinga bent or inclined upper end 22, a reciprocable memberB having a forming-plate 29 provided with a recess or concave face 30 and also having a pin 33, a cutter 36 and an abutment 38 adapted to strike the cam 9, and an ejecting device carried by the member B and comprising a slide 42, a plate 43 secured thereto, pins 44, 44, on the plate 43, and springs 45,45 controlling the plate 43, substantially as described.

11. The combination with a pair of relatively reciprocable members, of means thereon for bending the material into a double U, whereof the Us are of unequal size, and means for bending the side of the smaller U toward the common side to form an eye, substantially as described.

12. The combination with a pair of relatively reciprocable members, of means thereon for bending the material into a double U, whereof the Us are of unequal size, said means comprising dies for the larger U, and a projection having an open space in its rear for the smaller U, and means for bending the outer side of such smaller U around such projection to form an eye, substantially as described.

In witness whereof we hereunto subscribe our names this 10th day of April, A. D. 1902.

WALTER O. YEATMAN. O. FREDRIO MESSINGER.

Witnesses:

A. MILLER BELFIELD, J. 0. LEE.