US1469757A

US1469757A - Blanking-out eyelets

Info

Publication number: US1469757A
Application number: US504298A
Authority: US
Inventors: Edward L Sibley
Original assignee: EDWARD L SIBLEY Manufacturing Co IN
Current assignee: EDWARD L SIBLEY Manufacturing Co IN; EDWARD L SIBLEY MANUFACTURING COMPANY Inc
Priority date: 1921-09-30
Filing date: 1921-09-30
Publication date: 1923-10-02
Anticipated expiration: 1940-10-02

Description

Oct. 2, 1923. 1,469,757

E. L. SIBLEY. 2D

BLANKING OUT BYELETS Filed Sept. 30 1921 Patented Oct. 2, 1923.

UNITED STATES 1,459,751 PATENT oF icE.

EDWARD L. SIBLEY, 2D, or snnnme'ron, VERMQNT, AS'SIGNORTO EDWARD L. sIBLnY MANUFACTURING COMPANY, INCORPORATED, or nnnmnoron, VERMONT, A con PORATION OF VERMONT.

. i- BL'ANKING-OUT EYELETS.

Application filed September 30,1921. Serial No. 604,298

To all whom it may concern:

Be it known that I, Eo'wano L. S nner, II, a citizen of the United States, residing at ilennington, in the county of Bennington and Stateof Vermont, have invented a cer; tain new and useful Improvement in Blanking-Out Eyelets, of which the foll'ou'ingis a full, clear, and exact description.

The Well known Challenge eyelet of the Sibley Patent No. 358,225,.dated February 22, 1887, has been manufacturedcomn ercially in a somewhat different form from that described in the patent. Ordinarily,

instead of having four sections or fingers, as in the patent, it has five section or fingers, and the blanks have been cutfrom brass ribbon by means of suitable 'punchgpresses. In this process of n'ianufacture there been an undue proportion of Waste or scrap, in some cases the proportions being. three pounds of waste or scrap to two pounds of eyelets out of a five pound ribbon of brass, thus unduly increasing the ,cost of manufacture Owing to the star-like or radiate form of the blank, it has been diflieult to avoid such waste or scrap, butinaccordance with the present invention such Waste or scrap has been reduced to a minimum and the output of eyelets proportionately increased.

In one form of the present invention, three rows of blanks are cut from a single strip of brass of considerably less width than three times the width of the ordinary ribbon from which a single row has been cut in accordance With'the former practice. In other Words, the output of eyelets may be tripled in using a ribbon considerably less than three times the Width heretofore used in cutting out a single row.

The principle of the present invention is embodied in cutting a plurality of rows of star-shaped or radiate blanks of the character referred to from a ribbon of metal either by alternately running the ribbon through the cutting or punching machine in one direction for one row and then re- In the accompanying drawings illustrating the invention in the several figures of which like parts are similarlydesignated, Figure 1 is anv elevation of a. common form offChallenge eyelet, and Fig-i2 is a top plan View thereof, the eyelet in both views ,beingshown greatly enlarged. Fig. 3,. is a plan view of the blank used in .the-wnstruction of such an eyelet as that shown in Figs. 1 and 2, and Fig. El is a vertical section of the eyelet taken in the plane of lineA-4 Fig. 2. Fig. 5 is a plan view of a piece of stock, also greatly enlarged, showing the invention applied to cutting or punching out-three rows of blanks, such as shown in l1ig. -3, either one row at a time or. all of the rowssimultaneously. v

The blank comprises the-solid central portion 1, formingthehead or leading end 2 of the eyelet, which is forced through the material to be eyeleted, in the well known way of using Challenge eyelets; the radial sections ,or fingers3 whichform the barrel 4, and. the lateral arcuate extensions 5 which form the. foot or fiange;6 ofthe eyelet. j

Thereblanksare cut from suitable stock, such as soft drawn brass, in ribbon form. In .the presentinstance, the cutting or punching machine has one cutting element arranged parallel with the length of the ribbon, so that one of the sections or fingers will extend parallelwith such length,'same being indicated .by the cuts 7'in Fig. 5. The stock is run through the press so as to cut a row of blanks from one edge, and as near such edge as possible, as indicated at A; then the ribbon is run through in the opposite direction so as to cut out a row of blanks from the center of the stock, the parallelism of section or finger indicated by cut 7 being preserved but said out being reversed, as indicated at B; and then the ribbon is run through in the same direction as in making the first row so as to cut a row of blanks from near the opposite edge of the ribbon, as indicated at C. In each instance the material for the sections or fingers is cut from the stock between adjacent sections or fingers. In all of the rows the parallel cuts 7 for one blank extend between adjacent cuts of the next blank. and in row B the cuts for the other sections or fingers extend in between the adjacent cuts of the rows on both sides ill plying the number of rows of cuts the proportion of scrap to blanks is greatly reduced.

5 This is true in a twq row rih ho n and -:ilsojn u n e o f threeor more rows.

One of the important advantages of the present invention is that :1 maximum numh her of star-shaped blanks can be cut from a given square of stock with 'a =niinimuhiof waste, a nd that the greater the sqnare oi' stock the greateris the predu'ct and theless the scrap. These results are due to the fact that not only do the fingers-0f the blanks in' o'ne' ro w enter the steck hehteen the fingers ofadj-acent blanltsboth' in finnt and behi'ncL-but other 'fiiigers' enter the stoelt between the fingers of blanks in'thfe 'Tows on ppposite s iclesy- I \Vhile'I have" sc'ribed .myfim ention as being-carried 01'1't"b'y cutting 6nef-r6W of blanks at a time"and-=revrsiag fl g steak "fer each'eacceedin g row; it is Within iiiy 'in Vehtibn to cut all 0ftlte nHWst-iininllfane misty; as by using a gang pi'sqgwitn the punches arrangedso that the cluts will be 3 inade' between parts asprv'ion'sly eicplainetl.

The arrangement *fl' exits shown isof le mdnstra'ted practicability, bu'twiarigitibns ther'eo'ff mfisidemd; tube within the principle of the invention and the claims following. 1

' What I'claifm'is:f A

-1. The method of blanking gintfeyelets havi'riq' radiate or starhaped b1anl' s,"prnvitled wi'th 'a pliirsility of sections 0r fingers, same consisting in punching a plurality of substantially parallel rows f suehhlim'ks with the sections or fingersextendin'g in between the cutsof the sections or fingers of atljacent blanks of the samerow a'nd' also the parallel row or rqws on'eithei' 'sirle."

'2. The m' eth0d or blanking mit'eyelet's having ra'diate or star-shaped blhnks,-pr0'- substantially parallel rows of such blanks with 2% eflte eetieeeeizt egez :ee efi a: lengthwise, (if the sitggelr QIQJQYWIBQQ the space between acljaceii tl ii nger entsgl-a q l thelbther sections or lingers extending into the spaces betweenrfinger cuts in an adjacent row.

3. The method of blanking out eyelets havin'g'r'adia'te or star-shaped blanks, provided with a. plurality of sections or fingers, same consisting in punching a row of blanks lengthwise (if the stoeln ailcljthen running theflstbck thrdfi irh the punching nlachine in thbllginsit ditbt'i0n= anrl' pundhing out a second row of bltlnks so that said "second rowel? lila'nks w ill b'e liezlftled in tlie'dpfid'site direction to the first and-repeating these pperations for any "flesiied number *of rows, the teetie s 'onfillgqe of 'eaeh' roht' bi e-in}; c ut frbifi 'tll'e sw it beux en 'adjafii t section or fiiiger eats wheievr the seetionfsfor fingets alttna'te f Y