USRE9837E - towne - Google Patents

Description

1 4 Sheets-Sheet 1. L. TOWNE,

Assignor, by mesne assignments, to AMERICAN Hoox AND Bu'mou COMPANY. MACHINE FOR MAKING BUTTON HOOKS.

No. 9,837. Reissued Aug. 9,1881.

Fig. 1.

, lTNESStSI I I |NVENTQR1 7Z% 4 sheets-sheet 2 L. TOWNE,

Asslgnor, by mesne assignments, to-Anmcu Hoox nu) Bud-r6! UOIPAIY. MACHINE FOR MAKING BUTTON HOUKS.

No. 9,837. Reissued Alig. 9,1881.

' 4 Sheets- -Sheet 3Q L. TOWNB, V

Asalgnor, by means assignments, to AuEmcAn Econ Ann Bun'on COMPANY. MACHINE FOR MAKING BUTTON HOOKS.

No. 9,837. Reissu ed Aug. 9,1881

V -|NVENTOF2I 4 Sheets-Sheet 4.

L. TOWNE,

Aaaignor, by meane assignments, t AIERJOAN Hoox Aim Burro! Donut. MACHINE FOR MAKING BUTTON HOOKS;

No. 9,837. Reissued Aug. 9,1881.

NT'ORI IN'VE particular shape.

' is intended to operate in order to produce the UNITED STATES- PATENT OFFICE.

LAURISTON TOWN OF PROVIDENCE, RHODE ISLAND, ASSIGNOR, BY MESNE ASSIGNMENTS, TO AMERICAN HOOK AND BUTTON COMPANY.

MACHINE FOR MAKING BUTTON-HO KS.

SPECIFICATION forming part of Reissued Letters PatentNo. 9,837, dated August 9, '1881. Original No. 86,473, dated February 1869. Application for reissue flied August 2, 1880.

To on whom it may concern:

Be it known that I, LAURISTONITOWNE, of the city and county of Providence, in theState of Rhode Island, have invented a new audio]- proved Machine for Making Button-Hooks; and I do hereby declare that'the following specification, taken in connectioh with the drawings making a part ofthe same, is a full, clear, and exact description thereof.

Figure 1 is a side view. Fig. 2 is a plan. Figs. 3 to 11, inclusive, are detailed parts to be referred to. Nos. 1 to 4', inclusive, exhibit articles made progressively'by the machine from the blank to the button-hook.

Thesame lettersindicate eorrespoudin g parts in all the figures.

The'machine herein described is especially designed to make the article used in place of eyelets for holding the lacings of shoes and gaiters', known as a combined hook and button, and for which article of manufacture Letters Patent of the United States were granted to William H. Shurtlefi, hearing date June 5, A. D. 1866.

The principles of construction which the machine exhibits can also, with suitable modification of the forms of the cutters and dies, be. made available for, the production of various articles made from sheet metal, which require to be swaged by successive operations into a The blank upon which the present machine special article of manufacture named is shown at sketch No. 1. Before being brought to the finished shape shown at No. 4 it is necessary that it should pass successively through the forms shown at Nos. 2 and 3.

The moving parts of the machine are all operated from a continnously-rotatin g main shaft, 0, carrying a fly-wheel, M, and a fast pulley, N, for driving it by means of a belt, a loose pulley being also arranged on the shaft alongside the fast pulley, as usual.

The machine cuts its own blanks from tune-- tallic ribbon, which may be fed to it by any convenient means. I prefer towind the ribbon intoa coil, inclose it in a. box, Z,'Fig. 2, like a barrel for the maiuspring of a watch,

with the exception that a transverse slit is cut through the side of such box for the passage of the strip of metal. Apair'ot' feeding-rollers,

"R, Fig. 2,'operated by an intermittent pawland-ratchet feed, 1 L, nips the ribbon of metal andv feeds it along at the rate required to present a fresh surface of such ribbon to the face of the stamping-punch,which cuts out a bank each time that it descends. The pawl Z is pivoted on a loose arm on the shaft of ratchetwheel L, the arm being connected by a link, h, to a. vertical rod, H, which is reciprocated intermittingly by a lever,-I, operated by cam P on the main shaft 0. In, this respect the arrangement is like that employed by me in feedin g a similar ribbon to the machine for making sheet-metal chain heretofore patented to me.

The llISiJ operation of the machine is to cut from the metallic ribbon a blank, No. 1. This is performed by the stamping-punch 1), (whose face is of the same size and outline as that of 'theblank,) cooperating with a die, u,in which an opening, 3, is formed corresponding with the cross-sectional contour of the stampingpunch. The stamping-punch is fixed to the lower end of a stock, 1), fitted in vertical guides on the head D of the main frame. The stock D and stamping-punch i) are reciprocatcd by means of a lever, t, fnlcrumed on the head, one arm being linked to the stock 1) and the other arm being linked to a vertically-moving slide operated by com .5 on the main shaft 0,

inawell-understoodway. The die uis clamped in the block U, (fixed on the main frame,) be. low the plate z,bet\vecn which plate and the die the metallic ribbon passes through the feeding rollers, the plate 2 having a suitable opening cut through it for the play of the stampingpunch I). (See Fig. 8.) The cross-sectional View, Fig. 8, is taken at difl'ercnt planes through the block U and die n, so as to show one of the split ends of the block in section at a plane beyond the plane of section of die n, the' opening through the block U under the die u being consequentlynot visible in said cross-section. In descending the first action of the stam pingpnnch D is to stamp a dome, '4, No. 1, on the metallic ribbon. Thisis effected by a domeshaped protuberance (not shown in thedrawings) on the face of. the stamping-punch coacting with the circular end of the opening 3 of die 10, into which the said dome-shaped protuberance presses the metal before it severs it. Continuing its descent, the stamping-punch A severs the blank No.1 in conjunction with the I being similar to that for operating the stamping-puuch. The plunger 5 moves upward as the stamping-punch moves downward, their movements being so timed that by the time the end of the stamping-punch touches the upper side of the metallic ribbon the springpresser d of said plunger will touch its under side and press it firmly, though yieldingly, up against the stamping-punch. The continuing descent of the stamping punch forces the spring-presser down, and by the time the blank is cut plunger!) also begins its descent.

The stamped blank No.1 is carried down by the descending stamping-punch and springpresser d and deposited upon a way, 6, with its lateral prongs between a pair of pivoted spriug-gripers, w at. These gripers have beveled overhanginglips, which are pressed upon by the descending blank, so as to open the gripers and permit the prongs of the blank to reach alevel just below these overhanging lips as the stamping-punch completes its downstroke. On the upstroke .of the stampingpunch the blank is stripped therefrom by the gripers and left on the way 6, held by said gripers directly in front of the follower J, fitted to slide on the way 6, between guides 7 7 thereof. The front end of the follower is shaped, as best shown in Fig. 7, so as to embrace the blank with its ends touching the lateral prongs thereof. Upon the instant that the stamping-punchcommences to rise the follower J is caused to push the blank forward by the action of the cam P on the main shaft 0 through the intervention of the lever K,

whose forward end is connected by a link with the rear end of the follower.

The stamped blank No. 1 is to be shaped by successive operations on an intermittingly-rotating table, A, fixed to a vertical spindle mounted in the fixed standard 0 of the main frame. The mechanism for intermittingly rotating the table is so contrived that during each complete rotation the table shall have four intervals of rest. On the lower end of the spindle of the table a ratchet-wheel, 8, with four teeth,is keyed, provided with a hub having four notches, 18. The ratchet-wheel S is operated by a pawl, X, pivotedtoan arnnX, which turns loosely on the spindle of table A,

t and is connected by a link', X to the long arm of the lever X, which is oscillated by cam Q on the main shaft 0, so as to turn the ratchetwheel quarter of a revolution at each oscillation of lever X. A dog,'X', pivoted to the link X locks the ratchet-wheel by engaging one or the other of the notches 18 in its hub, and thus holds the table A steady during each intervalof rest. The dog is actuated by a spring, 17, to engage the hub of the-ratchetwheel, and is disengaged just as the pawl X is about to engage the next tooth of ratchetwheel 8, preparatory to moving it a quarterturn, by lever X through the intervention of a link, X, and a lever-arm, X pivoted by a rulejoint to the outer end of the dog X.

Four radial recessesare formed in the table A, which are broughtsuccessively into line with way 6. ln each of these recesses is seated a plate, 0, the several plates being rigidly held inplace by the heads of the screws i entering recesses in the edges of said plates. face of the plates 0 occupies the same level as way 6, so that the blank No. 1 can be pushed from way 6 onto the plate c at the time iu'line therewith. The outer end of each plate 0 is forked in such manner that when blank No. 1 is pushed onto it its prongs alone shall reston solid portions of the said plate. The forked outer end of plate cforms a female die,th'rough which a plunger, presently to be described, can press the body of the blank, while the prongs thereof are at the sametime drawn up by the solid portions of said female die. A plate terminating at its outer end in spring-jawss s is secured by screw j upon the top (if each plate 0. As blank No. 1 is pushed onto plate 0 its front prong enters between the spring-jaws s s and is grasped thereby. r

In each radial recess of table A, and below the plate 0, is also fitted a radially-slidingplate, g, the outer end of which is formed as best shown in Figs. 4, 9, and 11. A stud, m 7., projects downward from this plate. through a radial slot in table A, entering with its end k a camway, 16, in the top of a collar, B, secured to the standard 0. During the greaterportion of each rotation of table A the plates are held projected by the camway to the extent shown in Figs. 3, 9, 10, 11, and cross-sectional Fig. 4, so that their outer ends project some distance under the openingof the fork of plate a. The sliding plates 9 occupy this position when they are opposite way 6, and from that time on up to the end of the second interval of rest thereafter.

Let it'be supposed, now, that a blank No. 1 has been pushed onto a plate a of table A by The the follower J, and left there with its front 9, on main shaft 0, through 'the'iutervention of levers q and r and suitable. connections. The plungers move together, so as to press I the body of the blank reaches and is pressed upon the plate g the plunger f ceases its de-' scent, and remains stationary, so as to firmly press the pronged end of the blank upon the plate g; but the plunger 6 continues its de- 1o scent, bending theshank ofthe blank at aright angle down past the end of the plate g, and in so bending it the dome-shaped end of the blank strikes a lip on table A and is bent at a right angle to the shank, all as shown by broken :5 lines in Fig. 9, the result being the blank No.

2. By the operation of plunger f the front prong of the blank is drawn from between the spring-jaws s sand forced between another pair of spring-jaws, 10, fixed to the bottom of plate c. Theblankhaving beenthusbentand griped,

the plungers f and e are caused to ascendto clear the-top of table A, which is immediately.

moved around a quarter-turn in the direction of the arrowin Fig.2, so as to carry the blank 2 5 No. 2 to a point opposite the horizontally-reciprocatin g plunger V, carrying a presser, v, another platec being at the same time carried into line with way 6, ready to receive a fresh blank No. 1 from the follower J.

During the intervalof rest of thetable A the presser v is caused to advance by the cam 11 on the main shaft through the intervention of lever 11, linked to the rear end of the planger V. The forward end of presser v is forked,

as shown best in Figs. 3 and 10, so that the upper prong thereof can slide over the flat portion of the blank on the top of plate g, while the lower prong bends the shank of the blank around the end of plate 9 and the connecting- 0 web of the prongs presses the shank into the concavity in the end of the plate g, so as to transversely curve or corrugate the shank, in the manner shown in the Shurtlefl' patent hereinbefore referred to. In thus bendingthe blank '45 around the plate 9 (which, so far as its passive 5oto be slightly bent back, as shown in Figs. 10

and 11. Thus by the operation of presser e the blank is shaped to the form of No. 3. The presser '0 now recedes, and the table A is moved another quarter-turn, so as to carry blank No.

5 5 3 to a oint between the presser-bar b and the domending plunger a. The presser-bar b is caused to descend from above the table to i press the fiat and pronged end of the blank down upon the former g, and the plunger a is caused to ascend from below the table to press the dome-shaped and back upon the shank, so

as to finish 'the complete button-hook N0. 4. The presser-bar b, fixed to the stock 14, and plunger a, fixed to the stock 15, are respect- 6; ively reciprocsted at the proper times by the pain 8 through the intervention of lovers 12 and 13 and suitable connections, the cam S being keyed on a counter-shaft, '1, driven from the main shaft through bevel-gearing. On the completion of the button-hook and the retraction of the presser-bar b and the plunger 7 a, the table A is again moved aquarter-tnrn..

During this movement the former g, carrying the completed button-hook, is projected ontwardly by the cam way 16, so as to carry said button-hook beyond the exterior side of a fixed curved forked bar, W. The plate or former'g enters the fork of bar W, and is retracted to its normal position during the next quarterturn of the table A, causing the button-hook to be stripped from it by the said forked bar W.

Other blanks No.1 have been in the mean while successively fed onto the other plates 0 of table A and are in process of conversion into button-hooks. As the first plate 0 again arrives opposite wav G a new blank No. 1 is pushed onto it, to be converted by the successive operations above described into a button-hook, and

to be discharged.

It will thus be seen that the machinery above described is adapted to make button-hooks from a ribbon of metal by progressive steps, v

as follows: first, stamping a dome in the ribbon of metal; secondly, nearly contemporaneously therewith cutting a blank of the required form from said 7 ribbon; thirdly, drawing up the prongs of the blank to form the fastening device; fourthly, bending the shank and dome into the shape represented by form No. 2; fifthly, transversely curving or corrugating the shank and bending it and the dome into the shape represented by form No. 3; sixthly, bending the dome back on the shank to complete the button-hook No. 4; seventbly, discharging the completed bnttonhook.

Having thus described my invention, what I claim is- 1. In a machine for making button-hooks, the combination, substantially as before set forth, of the former, the plunger holding the blank against one side thereof, and the plum ger and fixed lip for bending the blank at a right angle past the'end of said former, and also bending the dome back. 1

2. In a machine for making button-hooks, the combination, substantially as before set forth, of the*former and the presser for bending the shank of the blank aroundthe end of said former, and at the same time transversely curving the shank.

rod

3. In a machine for making button-hooks,

the combination,substantially as before set forth, of the rotating table, the reciprocating former, and the fixed forked stripper, whereby the finished button-hook is stripped from-the said former. g I

5. In a machinefor making button-hooks, vex'sely curving its shank, and the presser-bar the combination, substantially as before set" and plunger for bending the dome back upon 10 forth, of an intennittingly-rotating table, the the shank. female die and plan er for drawin up the 5 prongs of the blank, t he former, the plnnger. LAURISION TOWNE' for bending the blank atarightangle past the Witnesses:

end of the former, the presser for bending the \VILLIAM HAIQKGIARD, blank around the end of theformer and trans- JOSEPH A. MILLER, J1.

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