US344997A

US344997A - Eyeleting-machine

Info

Publication number: US344997A
Authority: US
Publication date: 1886-07-06
Anticipated expiration: 1903-07-06

Description

(No Mdel. J. S. SHANNON. BYELETING MACHINE.

No. 344,997. Patented July 6, 1886.

' and claimed, and illustrated in the annexed NITED- STATES PATENT OFFICE.

JAMES s. sHANNoN, or CHICAGO, ILLINOIS.

EYELETlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 344,997, dated July 6, 1886. Application filed October 12, 1885. Serial No. 179,628. (No model.)

To all whom it may concern.-

Be it known that I, JAMES S. SHANNON, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Eyeleting-Punches; and

I do hereby declare that the following is a,

thereon, which form a part of this specifica.

tion.

This invention'relates to improvements in punching mechanisms in which two or more dies or punches are employed in connection wit-l1 a matrix consisting of a perforated bed,

upon which the sheets of paper or other mate rial to be perforated are supported,and through which portions of the material are forced by the dies or punches, so as to form the required perforations. The double or multiple punch, which is herein illustrated, and. which is included in said class of punching mechanisms, is more especially designed for forming several eyeletholes simultaneously through a number of sheets of paper; and my-improvenienttherein consists of certain novel features of construction and combination, hereinafter described drawings, in which Figure 1 is a top plan viewof my improved mechanism with a portion of the operating? lever broken away at one edge in order to more clearly illustrate a spring-plate below the same. Fig. 2 is a transverse section on line 00 x of Fig. 1. Fig. 3 is a section taken through the same on line 3 y of Fig. 1.

On the drawings, A denotes a suitable tablet or base, to which is secured the bed A of the punching mechanism. The bed consists of a metal plate, which is preferably formed so as to bearupon the tablet or base A at three points--namely, the middle and the front and rear end edges of the plate constituting the said bed. This configuration of the bed-plate provides certain raised portions-in the bed, and also a space below the same, for purposes which will be hereinafter set forth.

The dies or punches B pass through and are rigidly secured to a bent or curved springplate, 0, which is supported at one end on the bed A, and at its remaining upper free end adapted to overhang the said bed. The punches are set in a line parallel with and adjacent to the end edgeofthe plate at its upper free end,

which said plate at its rear end curves downwardly, and is provided with a pair of arms, 0, which are secured upon a raised portion, a, of the bed.

The short rods, which constitute the dies or punches, extend both above and below the spring-plate O, and to provide an increased bearing for the punch or die rods, and more effectively hold them in rigid connection with upon the die or punch rods by a hand-lever,

D, has been removed. This hand-leveris pivoted at one end between a pair of standards or upturned cars, a, which rise from the bedplate, and which are conveniently formed in one piece with the latter. The hand-lever is hung or pivoted back of the set of dies or punches, and is at such end made of a width sufficient to cause it to bear upon the top ends of all of the punch or die rods when it is swung forward and over the dies or punches, as in dotted lines in Figs. 1 and 2. From its said wide pivoted end the lever is preferably tapered to its remaining free end, so as to adthebed-plate is provided with apertures a through which portions of the paper are forced by the dies or punches, and in which the dies or punches are received'when they are brought to the termination of their downstroke. This perforated portion of the bed-plate constitutes astationary matrix for the movable dies or punches, and also serves as a bed or seat for the paper or other material to be punched.

The stripper E consists of a plate, which is perforated for the passage of the dies or punches and supported at one end by the spring-die or punch-carrying plate 0. The spring-plate constituting the stripper is, by preference, provided at its rear end with a pair of arms, 0, which are secured to the under'side of the arms of the spring-plate O. The stripper-plate is bent or curled up and back along its front edge, as at 0, so as to extend over the front edge of the spring-plate which carries the dies or punches.

\Vhenthe frceend oft-hespring-dieorpunchcarrying plate is in its normal raised position, its front edge will bear againstthe under side of the bent lip e of the stripper-plate, which latter will assume its normal position below the spring-plate to an extent sufficient to leave an open space between the two plates and above the matrix to an extent which will leave a clear space sufiicient for the papers to be punched. When the free end of the springplate carrying the dies or punches is depressed, the stripper-plate will move simultaneously therewith until the st ripper- -ilate is arrested by the resistance of the papers or inaterialto be punched. The papers or other material will then be held upon the bed or matrix by the stripper-plate, while the de scending dies or punches will pass through the stripper-plate and the material under the same and force portions of the paper or other material through the holes in the matrix. During such time as the stripper remains stationary and the spring-plate O and its dies or punches descend the spring-plate will be forced down against the resistance of a spring, F, which is arranged between the said spring-plate and the stripper. This spring consists of a flat bent spring, which is perforated so as to permit the dies or punches to work freely through it. After the paper or other material has been punched. and the dies or punches have been relieved from the down pressure, the spring F, which during the downstrokc of the dies has been compressed or forced against its inherent elasticity will, during the upward movement of the free end of the spring-plate C, serve to maintain the stripper down upon the paper or other material, so as to hold the same,

. and in effect strip it from the ascendimg dies This action of the spring F con-.

or punches. tinues until the spring is permitted to regain its normal condition, at which moment the dies or punches will have cleared the paper or other material and their lower ends have been retracted within the openings through the stripper.

G indicates a gage, which is arranged to slide on the base or tablet A in position for determining the proper position of the paper or other material relatively to the punches, and also forassisting in bringing the edges of a number of sheets flush with one another. This gage consists simply of an angular plate having a flat base portion, connected with the base A by a sliding c0nnectionsuch as a couple of studs, 9, passing through a slot, 9, in the plate and secured in the base or tablet A. The remaining portion of the gage consists of an upturned end, 9, rising from one end of the base portion, 9, and adapted to stand against the edge or edges of the material which is to be punched.

What I claim as my invention is- 1. In an eyeleting-punch, the combination, with a stationary matrix, of a series of dies or punches, a spring-plate sustaining said dies or punches in position for engagement with the matrix and normally free from the latter, and a pivoted lever located in position to bear upon the upper ends of all of the dies or punches, whereby the latter may be simultaneously operated, substantially as described.

2. The combination, with a stationary ma trix, oftwo or more dies orpunches, B, aspri'ng plate sustaining the said dies or punches over the matrix, and normally free from the latter, and a pivoted lever located in position to bear upon the upper ends of all ot'the dies 9 or punches, said dies or punches being socured to the said spring-plate, so as to extend both above and below the latter, substantially as described.

3. Thecombination,with thedies orpnnches B, and a spring-plate, O, sustaining said dies or punches, ot' a perforated stripper, E, secured to the said spring-plate, a spring interposed between the spring-plate and the stripper, and a lever. D, pivoted in position to engage the top ends of the said dies or punches, substantially as described.

4. The combination, with a bed-plate, A,

perforated to form a matrix, of a spring-plate secured at one end to said had plate, a series of dies or punches attached to the free edge of the spring-plate in position to engage the perforations of the matrix, a perforated strip. per, E, secured to the spring-plate at a point between the free and secured ends of said spring-plate, a perforated leaf-spring inter posed between the spring-plate and stripper, and a pivoted lever bearing upon the upper ends of all of the said dies or punches, substantially as described.

5. The combination, with the spring-plate 0, provided at its free edge with a set of dies or punches, of a bed-plate provided with ele vated portions a a, the former providing a seat for the secured end of the spring-plate, and the latter being perforated to form a ma trix for engagement with the said dies or punches, substantially as described.

In testimony that I claim the foregoing as my invention I affix my signature in presence of two witnesses.

Vitnesses: JAMESS. SHANNON.

M. E. DAYTON, H. N. HIBBARD.