US286283A

US286283A - Seam ing-press

Info

Publication number: US286283A
Authority: US
Publication date: 1883-10-09
Anticipated expiration: 1900-10-09

Description

(No Model.) 2 sheets-sheet 1.

B. J. DOLAN.

, SBAMING PRESS.

Patented ont. 9, 188s. I

(No Mariel.) l sheets-Sheet 2.

E. J. DOLAN.

SBAMING PRESS.V

No.l 286,283. l Patented'Oot. 9, 1883.

A' 'f/ \Q%f AFS :ja-5f f J* 'BL A A M jay 4- and shown in the accompanying drawings,

first creasing the lapped edges and bending UNITED STATES N PATENT Qrricnl EDWARD J. DOLAQN, lor PHILADELPHIA,irnnnsvnvnnm.

sEAMlNG-PREs-s.

PECIFICATION forming part of Letters Patent No. 286,283, dated October 9, 1883.

' Application filed 511116211883. (no modem To @ZZ whom t may' concern:

Be it known that I, EDWARD J. DOLAN, of the city of Philadelphia, county of Bhiladelphia, and State of Pennsylvania, have invented an Improvement in Seaming-Presses, of which the following is a specification.

My invention has reference to machines for making tinean bodies or seaming-presses; andl it consists in certain improvements in mechf anism for forming 4the seam, 'all of which is fully set forth in the following specificationwhich form part thereof.

The object of my invention is to form a seam on tin-can bodies or sheet metal generally by the bent portion` of seam obliquely over, so that when crushed down by the hammer aperfect seam is the result.

In the drawings, Figure l is a side elevation of a seaming-press embodying my improvements. Fig. 2 is a vertical section of same on line .r x. Fig. 3 is a cross-section on same line of the dies, showing the first step in forming the seam. Fig. i is a similar view, showing the dies closed and the second step and Fig. 5 shows the seam crushed down by the hammer.

A is the frame of the machine.

B is the forming orreceiving die. y

C vis the seeming-die plunger, and works in guide A', being allowed lateral play, but kept against one face of the guide A', and leaving the space A2 on the other by a block, F, and spring G, whose tension may be regulated by a plate, H, and screw I. This plunger G is reeiprocated by a lever, E,which is connected therewith by links e and pin e', the said plun ger having lateral play upon said pin e. The free end of lever E is held down by a spring, E, and may be oscillat'ed to actuate the plunger by rod E' and treadle E2. The plunger C carries the seamingdie D, which is formed in the usual manner, exceptv that the A-shaped slot or groove D2, formed between the body and knife-edge D', isA made oblique, and is made to tbupon the oblique prong R, formed on the receiving-die B. I

.I is allooseguide-bar, which slides freely in the hole J' in the plunger G, the said guidebar always remaining stationary while the plunger and die reciprocate.

B is a tension or take-up bar, and. is held-to the die B by screws b', and works in a' slot, B2, and is pressed outward bysprings b2.

K isa discharging-ring, and encireles the die B, being provided with fingers k, which enter grooves b, to insure the tin being pushed from under die D. This ringKis reciprocated by rods K' and springs K2, which rods are actuated by bell-crank lever L, which has one arm resting against the end of said rods K', or Aa cross-bar secured thereto. This lever L is -reeiprocated by a pivoted pawl, L', secured to the rod E' orlactuated thereby. The upward movement of rod E' simply actuates the pawl L to no effect, but the downward movement thereto vreciprocates the ring K".

M is aA guide under which the sheet metal is pushed, and tends to keep it in shape during the act of forming the seam, and may be adjusted to and from the die B by rod m and nuts m'. The die B is prolonged to support the crimped can-body to be hammered, and may be provided with a groove, T, to insure the proper bending of the crimp to form a com pact and perfect seam.

N is the hammer, and is secured to the bottom of a vertically-reciprocating rod, N', gui ded in bearings n, and provided on the top with a head, N, This hammer is pressed downward by springs N3. It is lifted by a lever, 0, provided on itsfree end with a pawl, O', kept in working position by a spring, O2, which pawl catches under the head N2 of rod N'. The other end of lever O is oscillated by a rod, P, and treadle P'.

In machines for making small cans the die -B is so reduced in diameter lthat it is desirable to support it against the force of the hammer N by suitable auxiliary means, which support said die B only when the hammer strikes it, the said support being entirely clear of the die B when crimping the seam and insertingthe tin or removingnthe nished can-body. To do this I pivot an arm, S, to a shaft, S', supported in bearing S2, the said shaft being rocked by a crank, S3, which is pulled up by a spring, S", and down by a rod, S5, hinged to the treadle B',for operating the hammerN, the said rod S5 being adapted to slide loosely in the crank Si,

and provided with a head, S". When the treadle B' is pressedl down, the hammer is slightly raised. Then the head S6 of rod S5 catches on the crank i3 and pulls it down, throwing'in the arm S under the die B just as IOL;

the hammer is freed and falls. The parts then l with a vertically and laterally reciprocating assumel their original positions, when the pressure is removed from the treadle. This support mechanism may-,be made in various ways, and I therefore do not limit myself to the details of, construction.

The operation is as followsb' The sheet-metal strip to form the can-body is bent around the die B, the ends lapped and passed under guides M and J, and the outer free end brought against the guide J, as shown in Fig. 3. The treadle E2 is then pressed down. rlhis lowers the die D, crimping the lapped sheet metal, and to- M.ward the completion of the downward movement the oblique grooves in thedies cause the die D and its plunger C to move laterally, closing the space A2 and opening the space G, compressing spring G, and thereby crimping the sheet metal with an oblique bent part, as shown in Fig. 4. rFhe spring E then comes into play, raising die D, and the rod E is pulled down, which action pushes forward ring K, causing the crimped can-body Q to be pushed forward under the hammer N, which has been raised, the tension-bar B keeping the' crimped ends clamped firmly. The treadle I is then pushed down as far as possible, or until the pawl of lever O slips from under head N 2, when the springs N 3 force the hammer down upon the oblique crimp, causing it to bend down in the right direction and insuring perfect seams. The main novelty in this invention lies i-n the oblique formation of the seaming-crimp, so that it must bend in the right direction when struck by the hammer.

Flat sheet metal may also be joined by this machine; but in place of a round die, B, a fiat table would be required.

I do not limit myself to the exact construction shown, as it may be modified in various ways Without departing from myinvention.

I am aware of the patent to Gordon, No.

222,691, lof 1879, and do not claim anything therein set forth or shown.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-

I. A sheet-inctal-scaming press provided with two dies having oblique crimping-faces, said dies being adapted to form a crimp to the lapped edges of the sheet metal, both faces of which crimp are oblique, to the end that when the said crimp is struck with a hammer it is caused to bend in thel right direction, and mechanism to operate said dies, substantially as and for vthe purpose specified.

2. In a sheet-metal-seaming press, the coinbination of a stationary or fixed-die with a vertically and laterally reciprocating crimping-die, and means to operate said die, substantially as and for the purpose specified.

3. A sheet-metal-seaining press provided with a vertically and laterally reciprocating crimping-die, a receiving-die, and seaminghammer, substantially as and for the purpose specified.

4f. A sheet-metal-seaming press provided crimping-die, a receiving-die and seaminghammer, and suitable guides to control the feed and delivery of the sheet metal, substantially as and for the purpose specified.

5. A sheet-metal-seaming press provided with a vertically and laterally reciprocating crimping-die, a receiving-die and seaminghammer, and a discharging device by which kthe crimped sheet metal is automatically fed under the hammer, substantially as and for the purpose specified. i

6. The combination of die B, having oblique knife-edge B, with die D, having oblique groove D2 and knife-edge D, substantially vas and for the purpose specified. l

7. The combination of die B, having oblique knife-edge B, with die D,having oblique groove D2, knife-edge D', and means to reciprocate saiddie D vertically and laterally, substantially as and for the purpose specified.

8. The combination of guide A', plunger C, die D, block F, and spring G, substantially as and for the purpose specified.

9. The combination of guide'A, plunger C, die D, block F, spring G, plate H, and bolt I, substantially as and for the purpose specified.

l0. The combination of guide A', plunger C, die D, dieiB,rloose guide J, and rigid guide M,

substantially as and for the purpose specified. f

11. The combination of guide A, plunger G, die D, block F, spring G, die B, and take-up bar B, substantially as and for the purpose specified.

12. The combination of die B, die D, means to reciprocate said die D vertically, and also give it lateral motion, hammer N, rod N', spring N3, head N, lever O, having springpawl O', rod' I), and treadle Pf, substantially as and for the purpose specified.

13. The combination of die B, dischargingring K, means to reciprocate said ring, die D, means to reciprocate said die D vertically, and also give it lateral motion, hammer N, rod N, spring N, head N2, lever O, having pawl O', rod P, and treadle P', substantially as and for the purpose specified.

14. The combination of a tin-can-body-receiving die, B, a hammer to strike said die, a movable support for said die, mechanism to actuate said hammer and support, and so timed that the support is automatically placed under said die just as the hammer falls, substantially as and for the purpose specified.

,15. rlhe combination of hammer N, die B, and pivoted support S, substantially as and for the purpose specified.

16. 'Ihe combination of hammer- N, die B, pivoted support S, shaft S', crank S, rod S5,

,having head S,spring S, and treadle S/, substantially as and for the purpose specified.

In testimony of which invention I hereunto set my hand.

EDWARD ..I.` DOLAN.

Vitnesses:

R. M. HUNTER, WILLIAM McWAnn.

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