US802253A - Wire-perforating machine. - Google Patents

Description

PATENTED OCT. 1'7, 1905 G. ANDRESEN.

WIRE PERFORATING MACHINE.

om 5 2 2 nu O0 /NVEA/mf? ATTORNEY APPLIUAT'ION FILED FEB. 25, 1904.

y TNTTFU STATES PATENT OFFTCTI.

CHRISTIAN ANDRESEN, OF ST. LOUIS, MISSOURI, ASSIGNOR TO LOCK SAFETY PIN COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MSSOURI.

Specification of Letters Patent.

Patented Oct. 17, 1905.

Application filed February 25, 19011. Serial No. 195,170.

To url/Z whom, t may concern/.-

Be it known that I, CHRISTIAN ANDRnsEN, a citizen ofthe United States, residing' at St. Louis, State of Missouri, have invented certain new and useful Improvements in Wire- Perforating Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention has relation to improvements in wire-perforating machines; and it consists in the novel construction and combination of parts more fully set forth in the specilication and pointed out in the claims.

In the drawings, Figure l is a side elevation of the device. Fig. Z is a front end view of the lower portion of the device. Fig. Sis a top plan of the wire-gripping jaws and plate to which they are directly secured. Fig. 4. is a rear end view of Fig. 3. Fig. 5 is a transverse vertical section on line 5 5 of Fig. 3. Fig. 6 is a longitudinalvertical section on line 6 6 of Fig. 2. Fig. 7 is a detail showing atop plan of the stationary jaw with the spring which releases the movable jaw resting on said stationary jaw. Fig. 8 is an enlarged section similar to Fig. 6, showing the cuttingblade of the punch passed through the wire with the severed piece of wire in advance of the blade. Fig. `9 is a transverse vertical section on line 9 9of Fig. 8; and Fig. lOisa detail of a wire length, showing the perforation or eye formed therein.

Primarily the present invention is intended to perforate wire to be used in the construction of a certain class of safety-pins in which an eye of the piercing member is engaged by a tongue carried by either the sheath or stationary member of the pin, though of course the device here shown may be used to perforate wire for any purpose whatsoever.

The object of the invention is to construct A a machine which will insure a uniform product, forming an eye in the wire which will always be symmetrically disposed about the longitudinal axis of the wire and without distending the side walls of the perforation thus effected, whereby the cross-sectional contour of the wire length will remain substantially uniform throughout even in the region of the eye or perforation aforesaid.

In detail the invention (which need not be limited to the perforating of wire) may be described as follows:

Referring to the drawings, l represents a suitable standard having an expanded base 2, the former having mounted in bearing-brackets 3 thereof the holderll of a reciprocating punch, the upper end of said tool-holder being connected, through thc medium of a link 5, to an operating-lever 6, pivoted at the upper end of the standard. Formed adjacent to the pivotal axis of thc lever is an eccentric heel or cam 7, which bears against the head 8 of a vertically-operating plunger 9, the lower end of which is provided with a presser foot or plate lO, which is connected to the standard by the contracting springs ll, the opposite ends of the latter being secured to pins l2 l2, carried by the standard and presser-foot, respectively. The forward end of the presser-foot is provided with an opening 13 for the free passage therethrough of the socket 4 of the tool-holder, by which the shank of the cutting-blade or punch 14 is carried. The presser-foot is, moreover, provided with an adjusting screw or bolt l5, having a lower tapering end for a purpose presently apparent.

Secured to the base 2 by bolts 16, passed through elongated openings 17, (to accurately adjust the position thereof alongl said base,) is a plate 18, having a central longitudinal slot 19 of suitable depth to allow thc cuttings to drop freely therethrough, said plate 1S having secured thereto a block 20, provided with a depression for the reception of the longitudinally-grooved stationary jaw 21, the groove 22 of the latter coml'nunicating with a vertically-disposed die-opening 23, located immediately over a circular opening 24 in the block 20, which is superposed over the slot 19. Secured to the top of the block 2O is a L11-shaped plate or platform 25, there being pivoted at the base of and between the arms or lateral members thereof the hinged or movable jaw 21, capable of oscillation about the pin 26 as an axis, the longitudinal groove 22' of said hinged jaw alining with the corresponding groove 9.2 of thel stationary jaw, said movable jaw having a corresponding die-opening 2B leading from the groove 22' and in communication with a circular opening 2a', which allows for the free passage of the stem of the IOO blade during the cutting' operation, Fig. 9. Adjacent to the base of the hinged jaw is a socket which receives the coiled expanding spring 27, resting on the fixed jaw 21, said spring' releasing the hinged jaw from the fixed jaw sufliciently to allow for a free and easy insertion of the wire w into the tubular opening' formed by the grooves 22 22 during the feeding' and immediately preceding the punching operations. Secured to the hinged jaw immediately below the screw '15, mounted in the presser-foot, is a plate 28, provided with a g'roove or depression 29 for the reception of the tapering end of the screw l5 as the plunger 9 forces the presser-foot downward to force the hinged jaw toward the stationary jaw in the gripping of the wire during the punching operation.

The operation of the device may be described as follows: By depressing the long arm of the lever 6 the cam-li/eel 7 forces the plunger 9 slightly ahead of the holder 4 of the punch that is to say, it forces it enough ahead to cause the tip of the screw 15, carried by the presser-foot, to bear against the plate 28 and force the hinged jaw against the stationary jaw, and thus securely grip the wire, as in a vise, between the two jaws. All this time of course the punch is descending, and with the further depression of the lever 6 the blade 14 is forced through the wire, and the cutting' or section fw thus removed, Figs. 8 9, drops through the opening 24 and slot 19 to the floor or into a receptacle (not shown) placed in position to receive the cuttings. As the lever is swung upwardly of course the presser-foot returns to its normal position under the action of the spring's 11 11, and the hinged jaw releases the punched wire under the expanding action of the spring' 27, permitting the withdrawal of the perforated wire, as obvious. By referring to Figs. 8 and 9 it will be seen that for the gripped position of the wire the walls of the grooves 22 22 do not completely envelop it, this arrangement being' desirable to insure a maximum grip on the wire, a result which would be impossible were the cornbined depths of the grooves 22 22 sufficient to entirely envelop it, for under those circumstances the faces of the jaws would then come in actual contact, and it would be impossible to force them any closer together.

The jaws 21 21l in the presentinstance constitute the die for the punch by which the perforating is effected-that is to say, the die is composed of a fixed and movable section or jaw--and while one of the jaws or sections is here shown as pivoted or hinged it is apparent that any other equivalentconstruction by which the sections were forced together to effect the gripping of the wire would fall within the spirit and contemplation of my present invention. I may, too, depart from the other details of construction without in any wise affecting the nature or spirit of my invention.

Having described my invention, what I claim is-4 1. In a wire-perforating machine. suitable jaws disposed in yielding' relation to one another between which the wire is inserted, means for forcing' thejaws together and gripping the wire between them, and a punch for perforating said wire while held in its gripped position, substantially as set forth.

2. In a wire-perforating machine, suitable jaws for gripping the wire disposed in yielding relation to one another, means for forcing the jaws together, the latter being provided with alining die-openings, means for holding the wire in the path of said die-openings, and a punch having a cutting-blade adapted to pass through said die-opening's and perforate the wire held in the path thereof, substantially as set forth.

3. In a wire-perforating machine, suitable jaws disposed in yielding relation to one another and having oppositely-disposed grooves on their adjacent faces for the reception of the wire, means for forcing the jaws toward one another thereby gripping the wire, the jaws having alining openings leading' from the respective g'rooves, and a punch having a cutting-blade adapted to pass through said openings and perforate the wire held in the grooves, substantially as set forth.

4. In a wire-perforating machine, suitable jaws disposed in yielding relation to one another and having' oppositely-disposed grooves on their adjacent faces for the reception of the wire, means for forcing the jaws toward one another thereby gripping' the wire, the jaws having' alining' openings leading from the respective grooves, and a reciprocating punch having a cutting-blade adapted to pass through said opening's and perforate the wire held in the grooves, substantially as set forth.

5. In a wire-perforating machine, suitable jaws disposed in yielding relation to one another and having oppositely-disposed grooves on their adjacent faces for the reception of the wire, means for forcing' the jaws toward one another thereby gripping the wire, the jaws having' alining' opening's leading from the respective grooves, a reciprocating' punch having a cutting-blade adapted to pass through said openings and perforate the wire held in the g'rooves, and means for forcing the jaws apart and releasing' the wire at the conclusion of the punching' operation, substantially as set forth.

6. In a wire-perforating machine, a die comprising two sections having alining openings, and oppositely-disposed grooves on their adjacent faces communicating' with said openings, a reciprocating' punch having a cuttingblade adapted to be received by said openings and sever the wire held in its path within the IOO IOS

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grooves, a reciprocating presser-foot forcing the jaws together whereby the wire between them is securely gripped, means Jfor actuating the punch during the gripped position of the wire, and means for forcing the jaws apart upon conclusion of the punching operation, substantially as set forth.

7. In a punching-machine, a die composed of two sections or members in hinged relation to one another, and means for forcing the sections toward one another during the operation of punching, substantially as set forth.

8. In a punching-machine, a die composed of a tixed and hinged member, means for forcing the members together and gripping the article to be punched, and a punch for operating on the article while held in its gripped position, substantially as set forth.

In testimony wliereolIaIiX my signature in presence of two witnesses.

CHRISTIAN ANDRESEN.

Witnesses:

EMIL STAREK, Gr. L. BELFRY

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