US72790A - Island - Google Patents

Island Download PDF

Info

Publication number
US72790A
US72790A US72790DA US72790A US 72790 A US72790 A US 72790A US 72790D A US72790D A US 72790DA US 72790 A US72790 A US 72790A
Authority
US
United States
Prior art keywords
eyelet
metal
tube
thickness
form
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Publication date
Application granted granted Critical
Publication of US72790A publication Critical patent/US72790A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00

Description

'y @with tate getrapt fitte;

GEORGE B. BRAYTON, OF` BOSTON, MASSACHUSETTS, AASSIGNOR TO vHIM- SELF AND J. BOARD, OF BRISTOL, RHODE ISLAND.-4

Letters .Patent No. 72,790, dated December 31, 1867. l

IMPROVBD METHOD or MAKING BYBLBTS.

TO ALL WHOM IT MAY CONOERN:

Be it known that I, GEORGE BL BRnYrON, of Boston, in the county of Suffolk, and State of Massachusetts, have invented a new and improved Method of Making Eyelets; and I do hereby declare that the following, taken in connection with the drawings which accompany and form part of this specification, is a description of my invention, -s'uihcient toen'able those skilled in the art to practise it.l I i In the manufacture of metal eyelets, thepraetiee is, so far as'I know, to strike them up from sheet metal, the effect-of which process is to leave the lange forming the base of the eyelet of about uniform thickness with the plate, while fromthe base to the top the metal is so drawn or attenuated as to be very thin at the upper end of the eyelet. When the eyelet so made isl applied, the turning over of the upper end to clinch the eyelet,v in the work is apt to rend the eyelet. The two surfaces of the clinched eyeletgare not` uniform in appearance, and the weakness of the `flange, formed by the thin.end, causes the eyelet to tear from the leather or fabric to which it is applied, the flange not having strength-or rigidity enough to resist strain brought to hear upon it by a lacing cord.

The ob'oct of this invention is the reduction of an e elet free from these defects and this is attained b v .l P y s y making the eyelet from a metal tube, in contradistinction to striking it up froma plate or sheet of'metal, the eyelet so made being of uniform, or practically uniform, thickness of metal throughout, and having the metal form-ing the upper end so disposed that vwhen clinched the two flanges shall correspond in condition and appearance. Itis, therefore, a new method of making eyeletsgand of uniform, or practicallyuniform, thickness of metal throughout, that constitutes this invention.

A, in the drawing, represents a section of an eyelet (enlarged) of this construction; B shows a similar viewof the common form of eyelet.

i In striking up the eyelet B from a plate or sheet of metal, it will be obvious that the metal'must be drawn from the condition or thickness shownat the base, which isiabout the normal thickness ofthe plate, to the thinness shown at the top of the same, and'that when the top part is still further drawn out'by upsetting it outwards to .clinch it upon the goods to which it is applied, the'metal'willeither rend, or 'will have such weakness as to be incapable' of resisting any considerable strain uponit, tending to detach'itfrom the goods. B ut by A'cutting the eyelet A from amctal tube, both the base-and the top retain very'nearlythe uniform thickness of metal exist- 'ing in thc tube, and when applied both must correspond inform and appearance, each part having been only Subj in making thc eyelet, and the other by the action of the setting tools.

The respective conditions of the two eyelets, when applied, will be understood by referenceito D and 'E in the drawing. The eyelet A. may be formed automatically by mechanism, which shallcut the length necessary to form each eyelet fromthe end of the tube, and then feed it upon a die, which shall ,impart a slightlyconical form to its body and a are to its base; or the operation of cutting and 'forming may 'be ci'ectcd by separate eeterl to the strain vnecessary to form it into a clinching iiange, one of whichis formedfor partially' formed,`

machines. The tube having been previously, by any suitable means, drawn 'down to. the proper size, it is thencut transversely into pieces or sections of the length adapted to the length ofthe eyelet to he formed. A desirable-mode of accomplishing this I find to be by .the-usc f a series of disk-cutters and intervening rings, the whole set firmly on a revolving shaft, so that many sections may be cnt from a tube simultaneously, or

nearly so. 4

It is evident, however, that lother modes of severing the tube will answer in practising mypinvention'. 'Each of these sect-ions of the tube is .then made into the form of an eyelet by means of ya punchvan'd die. Itis evident that by interposing between the disk-cutters rings of greater or less thickness,l the cutters 'may be'adjusted nearer to or farther apart from each other, to admit of cutting from the tube sections of whatever length may be required. A i j t l Constructing eyelets from a tube has the further advantage over their formation from a plate, in that they can be made of any length from a tube, while the attenuation of the, metal consequent upon strikingthem from a plate, limits the length to which they can be so formed, as will be readily understood.

I claim, as a new method of manufacturing eyelets, the ycuttingof sec-tions from a. metal tube, and then forming theseinto shape, substantially as' described.

' eno. B. BRAYTON.

D Witnesses:

F. GoULjD, J. B. Cnosnr.

US72790D Island Expired - Lifetime US72790A (en)

Publications (1)

Publication Number Publication Date
US72790A true US72790A (en) 1867-12-31

Family

ID=2142300

Family Applications (1)

Application Number Title Priority Date Filing Date
US72790D Expired - Lifetime US72790A (en) Island

Country Status (1)

Country Link
US (1) US72790A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507638A (en) * 1947-04-03 1950-05-16 United Shoe Machinery Corp Method of forming plastic fastenings
US20040006381A1 (en) * 2000-05-30 2004-01-08 Jacques Sequin Noncylindrical drug eluting stent for treating vascular bifurcations

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507638A (en) * 1947-04-03 1950-05-16 United Shoe Machinery Corp Method of forming plastic fastenings
US20040006381A1 (en) * 2000-05-30 2004-01-08 Jacques Sequin Noncylindrical drug eluting stent for treating vascular bifurcations

Similar Documents

Publication Publication Date Title
US1122280A (en) Method of forming and inserting eyelets and the like.
US1625131A (en) Die
US874448A (en) Method of making gear-wheels.
US1832167A (en) Method for making nuts, bolt, rivet and screw blanks, and other articles
US440331A (en) Island
US2162902A (en) Method of connecting driving elements and the article produced thereby
US2603987A (en) Apparatus for making cartridge casing blanks or the like
EP2195129B1 (en) A method and a device for the manufacturing of washers for locking
US72181A (en) Improvement in machine-belting
US2613429A (en) Method of forming rings for bearings
US1200593A (en) Die for making caps.
US2062640A (en) Process for forming nuts and the like
US2196497A (en) Method of forming tubular members having thick walled end portions
US440693A (en) Island
US770238A (en) Punch.
US2761209A (en) Method for assembling molding fasteners
US1408917A (en) Method for forming nuts
US325692A (en) Hub-band
US271035A (en) Plastic eyelet
US385905A (en) Cushioned die for swaging sheet-metal articles
US14887A (en) Improvement in making brass kettles
US216729A (en) Improvement in tools for manufacturing spinning and twister rings
US2064918A (en) Bolt and the like and process of making
US222176A (en) Improvement in metallic stock for bracelets
US1373725A (en) Carl g