US1444511A - Machine for making projectile bands and the like - Google Patents

Description

Feb. 6, 1923. 1,444,511

A. W. LIMONT.

MACHINE FOR MAKING PROJECTILE BANDS AND THE LIKE. ORIGINAL FILED NOV. 5. 19:5.

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MIAEHEN E033. 9.151?

Original application. filed IToveinber t Divided. and this application flied Serial No. 586,801.

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lie it known that l, Jinnxnnunn q z: citizen of the United Stet-es, residiidg'eport, county o'lt' Feirlield, and l Conn-e iicut, ha e i1" certain it useful IUlPIO'VBDIQIlLS chines melting;- Project-me Bands 2111C which the following is a 1 full, clear end ct description. I

or the nianufnct of ritlinc hands lectiles 2r similar T application is oivision of n i erizt No. 59, 8ll islet liove letcnt lic. 1 26896 3 of Mow pertains especially to a n ing' out the specific process o application Serial No. 212,110, no i lair; 1R 1918 Patent No. 1,275,057 oi August- 3 1918.

()ne of the primary objects of the present invention is to provide simple con" 15% i and economical form of press or 1 making shell bands oi copper 1: metal.

Another object of the invention is to furnish. a machine or press in which a fist washer oi comparatively soft d. ct le metal, such as copper, may he quickly and accurately drawn into cylindrical shape and then rapidlyejected or discharged.

To these and other-ends, the inventionconsists in the novel features and combinations oi": parts to he hereinafter described -z1nd claimed.

In the accompanying); drawing:

Fig. l is a fragmentary elevation partly in section of a press embodying my improvements, showing the connmuucincnt oi? the operation; and

1,2 Q s a similar new ELQWNTD a later s ege o nefe 21W: se i. .L' 10 which 7 the forin of a, eeder o1 :suitehle size cut out ot a flat strip or shee oii' copper or like ductile nmteriel oi? suitnhle gauge. The blank i0 is placed in a press, such as shown. in Figs. 1 and 2, in which it drawn to Form a cylindrical hand. In the example shown, the press has a bed plate ll with a drawing die 12 mounted therein, said TU BLUIDGEPOET HQRPOEAKEGN ()1? CQNNECTI- 1388 35 3, dated 21., 1918. Renewed Ecptember 7, 1922.

an opening 13 extending through 1311- in line w th the opening: 1 1T ot the die the cpenino l3 heing: slightlv larger ah' r tile oper a 1 The draii'in die provioed with e- 0 portion the l;- J 1 l center and heloii the c vil t *lindricel will of the th e the portions 1+2 and 153 ii an is curve or fillet.

die 7. is a cy Lil'lClll 16 mourned o i of the prcr *er part :unch 16 is e.- *llllilFlVEIl portion 18, :ippronunetelv in diameter to 1 meter oi the finished hendr e '1 portion 18 is e. cylindrical pordizuf r. there beingan the ow r end 0' the in the washer-like hhinl: is the (lie and the punch descends, the

c N11 at its er pert by the peri he punch and takes up a? inst the i on the punch, inehns of which l entire through the die, hein i: 1 i .e 'h'oiu the dish-like shape uto a, cylindrical hand with sucstentiztlh irpper end lower edges. In this operation the blank is drewn continuously from a flat Washer shape through a conical shape to :1. cylindrical one by the application of drawingpressure, act-inn always from the sali e side of the blank, and Without the necessity of changing the position of the blank in the die. On the upstroke ot the punch, the roughly "formed hand is stripped from the letter by the lower edge 21 of the die opening, the stripping ot the hand by the die heing due to the tact that when the pressure upon the outer surface of the hand is rethe hand expands sl' "htly thus pr it from pass rough the die i the punch moves WTBWRFCL The '7 k is th rc o a srpped off and falls out of the die th or the bottom thereof.

:uhscrguent to the 0f :?1fl.il()njUSt described, 2 hlanh may he placed in another press for purpose oil pci TQQlTlIiQ' its shape, finishing; its surfaces more smoothly and bringing); the dimensions more accurately to size. This,

'const through the die.

is closely adjacent the lower end of the punch and in the particular form shown the distance between said shoulder and the lower end of t. punch approximates onohalt the minimum diameter of the die.

Various changes Ina y be made in the press uction herein described. without departing from the scope of my invention as defined in th claims.

It will be understood that the die and die bed, in the term shown, constitute a die menober h. Sing an opening therethrough, with an intermediate stripping shoulder, said shoulder being formed by the lower surface of the die proper.

i l hat I claim is:

1. A machine for iii-airingprojectile bands or the like by drawing a washer-like blanl: through a die, comprising a die provided with a mouth portion to receive and center the blank, and means, cooperating with the die, to engage the upper edge of said blank and, by pressure the *eupon, draw the blank through the die, said nice E comprising a punch having acylindrical lower portion with a rigid lateral shoulder closely adjacent thereto, said shoulder exerting pressure upon the upper edge of the blank to force the 'SLUIIQ 2. In a machine such as described, the conbination of a die harir an opening through the same, there being a washer receiving recess. at the mouth of said opening, the inner surface oi thedie having a fillet below said recess joined with the lower edge of the die by a substantially cylindrical portion, a diebed operatively supporting said die, andonieans, includinga punch having a rigid shoulder thereon, for engaging the upper edge of a washer blank and forcing the same through the die.

3. lin a. machine such as described, the combination of a'die having an opening throughthe same with a washer-receiving and centering recess at the mouth of said opening, a die bed having an opening through the same, in the upper part of which said die is received, the opening at the lower part of said die bed being of somewhat greater diameter than the lower partot the die opening to cause the lower surface ot the die to act as a stripper,anda punch provided with a cylindrical lower portion and a rigid lateral shoulder closely "adjacent thereto to draw the Washer down into the die and then push it out of the die past said stripper.

a. In a machine such as described, the

combination of a die having an opening through the same withawasher-r ceiving recess at the mouth of said opening, the inner surface of the die having fillet below said recess joined with the lower edge of ti e die opening by a cylindrical portion, a die bed having an opening throughthe same, in the upper part of which opening said die is received, the opening at the lower part of said die bed beneath said die being 01 somewhat greater diameter than the lower part of the die opening so as to permit the lower surfa e ol the die to act as a stripper, and a punch having a rounded lower end portion to draw the washer down into the die, a cylindrical portion on the punch above such rounded lower end portion, closely fitting the cylindrical part of the die, and a shoulder on the punch immediately above said cylindrical portion thereof presenting a flat surface for engagement with the upper edge of the blank whereby the blank may be forced through the die into stripping position.

In witness whereof, I have hereunto set my hand on the 8rd day of July, 1918.

ALEXANDER lV. LIMONT.

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