US494780A - Chain-linking machine - Google Patents

Description

(No Model.) l 4 Sheets-Sheen 1. M HEIM. GHAIN LINKING MAGHINE.

Patented Apr. 4, 1893.

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M. HEIM. CHAIN LINKING MACHINE.

No. 494,780. Patented Apr. 4, 1893.

INVENTOR:

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n M HEIM y CHAIN LINKING MACHINE.

No. 494,780. Patented Apr. 4, 1893.

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M. HEIM. GHAIN LINKING MACHINE.

No. 494,780. v- Patented Apr. 4,1893.

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ATTORNEYS.

ATENT MARTIN HEIM, OF SYRACUSE, NEV YORK.

CHAlN-LINKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 494,780, dated April 4, 1893.

Application filed October 1G, 1892. Serial No. 448,287. (No model.)

To all whom z5 may concern.-

Be it known that I, MARTIN HEIM, of Syracuse, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in Chain-Linking Machines, of which the following, taken in connection With the accompanying drawings, is a full, clear, and exact description.

This invention relates to the manufacture of that class of chains which are composed of links formed of flat plates, each of which is perforated at both ends and bent across its center into the form of a loop and receives through the perforations in its ends the loop of the adjacent link formed in the same manner; and the invention consists in an improved organization of a machine which bends the link-blanks into the requisite loop shape and couples them together in an expeditions and efficient manner, all as hereinafter more fully described and specifically set forth in the claims.

In the annexed drawings, Figure l is a side elevation of a machine embodying my invention. Fig. 2 is a horizontal longitudinal section on line o5, 93, in Fig. 1. Fig. 3 is a vertical transverse section on line e, e', in Fig. 1. Fig. el is a vertical transverse section of the hopper containing the link-blanks. Figs. 5 and G are respectively side and plan views of the jaws which complete the bending of the blank into link shape. Fig. 7 is an end elevation of the devices for turning the blank from an edgewise to a horizontal position and for operating the pin which draws the blanks down into position to be operated on by the aforesaid jaws. Fig. S is a vertical transverse section on line y, y, in Fig. 2. Fig. 9 is alongitudinal section of the bar which turns the linleblank from a vertical into a horizontal position. Fig. 10 is an enlarged face view of the cam which imparts lateral motion to the lever which draws down the link-blank. Fig. 11 is a side elevation of the chain Winding, measuring and registering mechanism. Fig. 12 is an end elevation of the same with part of the case broken away, and Figs. 13 and 14 are views of opposite sides of one of the registering Wheels. 4

Similar letters of reference indicate corresponding parts.

A represents the base plate 'of the frame of the machine, and -A' astandard which rises from said base-plate. Said base-plate is provided with avertical'transverse slot aat one side of which is the chute -O- erected on the base-plate. This chute is to contain the blanks from which the links are to be formed, and is therefore of rectangular form in cross section to carry the blanks horizontally and piled up in a tier as indicated by' dotted lines in Fig. 1 of the drawings. The chute is disposed with the long sides of the rectangle parallel with the base plate or at right angles to the slot -cL--, and the base of the chute is curved laterally as shown in Fig. 4 of the drawings, to turn the blanks thereat into a vertically edgewise position. A vertical slot -C- in the base of the chute at the edge facing the slot -apermits the bottom blank to be pushed out endwise from the chute. Another similar slot is provided in the opposite edge of the chute for the entrance of the push-bar -b-f which pushes the blank from the chute a proper distance to bring the center of the length of the blank across the slot La At the opposite side ot the slot -aand in range with the delivery of the chute (3- is'a tubular bar -cmounted revolubly in suitable bearings -c'csecured to the base-plate -A-. The lend of said bar adjacent to the slot -ais provided with a transverse groove -cfor the purpose hereinafter explained. Wfithin the bar -cis a cylindrical rod -clwhich normally extends from the groove -'cthrough the opposite end of the bar and through a collar -d'- fastened to the base-plate. Said rod is secured stationary in its position by nuts -CZ-d applied to the screwthreaded end portion of the rod at opposite sides of the collar -CZ Between the collar OV- and adjacent bearing -cis a crank-e* which is rigidly attached to the end of the tubular bar -c-f and the hub of said crank is formed with a cam-shaped face -e'- at the side adjacent to the bearing -c' and the latter has lirmly allixed tfo it or formed integral with it a similar cam e against which the hub of the crank is pressed by a spiral spring cinterposed between said hub and adjacent nuts--c-. lBy turning the crank e, the bar -c receives a quarter turn IDO -c"-- the end of the link-blank pushedfrom the hopper and across the slot ct in the bed plate, and the turning of the said bar i as aforesaid turns the link-blank into a horizontal position, and in this position it is left by the longitudinal movement of the bar --c-` which by aid of the rod CZ-'- liberates the blank from the groove we".

link I employ a horizontally disposed pin -fwhich has a vertical movement terminating in lateral movements. In beginning to form the links and coupling the same I bend the first blank into U-sha-pe and insert Ushaped blanlncauses the central portion` of the inserted blank to be drawn down into the .slot en -.by the U-shaped blank. The

pressure of the sides of the slot on the blank j drawn into said slot bends it'into `U-shape.

For carrying the pin fin the directions before described I preferably employ a vertically and laterally oscillatory lever which is pivoted intermediate its length to aA suitable support on `the base plate Afand has a pin projecting later. ally from the end adjacent to the slot -aas shown in Fig. 2 of the drawings.

` For completing the bending of the blanks into the requisite link-shape I employ twoI jaws -g--gwhich are movable toward and from each other and disposed at opposite sides of the U-shaped blank which isiminediately` below the slot -a-.

Said -jaws are affixed to bars -g-gsliding longitudinally in a guide -g --secured to the base .plate -A-,

and in the approach of said jaws the end portions of the interposed blank are pressed to-l gether as illustrated in Fig. l of the drawings. For operating the described link-forming l and coupling devices in their requisite order l I preferably employ the following mechanism. j In the upper end of the standard -A- I mount the shaft of the driving pulley -P-, and to said shaftI attach the eccentrics -B- a and -B- and crank-wheel -B. wrist-pin of this crank-wheel I connect the pitman -D- whichin turn is connected to the upper end of a lever-D- pivoted to an j arm -E- on the standard and connected at` its lower end to the push -bar -ZJ to which it imparts a reciprocating motion and which pushes the link-blanks from the chute C- and into position for being bent into linkshape as hereinbefore described. The crank -ereceives the necessary rocking motion to impart to the tubular bar a quarter turn by means of the eccentric rod -F- connected to the eccentric l5- and to one end of a lever -L-which is pivoted to the standard -A-, and has connected to its opposite rend the pitman -H-, which in turn is connected with the crank -eby a rod -I. The lever which carries the pin -f-,

receives its vertical oscillatorymotion 'from For bending the blank into the shape of athe pitman I-I- which is connected at its lower extremity to the outer end of the said lever, by a wrist-pin attached-to the leverand passing through a vertical slot -i-in the pitlnan, said slot permitting a ylimited lost motion which causes the lever to remain at rest while the straight blank is introduced into the U-shaped blank, `and` .turned into a horizontal position as hereifnbefore described. The lateral oscillation of the lever is produced by a pin nprojecting longitudinally from the outer end of theleverand moving in a cam-groove -o-formed ina bracket .-oattached to .the bed-plate.- A spring actuated guard -tis .pivoted to the bracket and lies normally across the groove -oat .the `upper and lower portions thereof .to guide the pin -it.so as to cause it tomake a vcomplete circuit of .the cam-groove.

rocating motion from the eccentric -B-,

to one end of a lever \-L- pivoted -to .the standard -A-. 'lo the opposite endof said lever is connected the 'plunger I-, the lower-end of which is beveled V-shaped. Said plunger thus reci procated passes with its bev- -eled end .between beveled cams ZZ-which .are attached `to the bars -g-gand are :automatically drawn `toward each other .by a spring -s-, as shown in Figs. 5 and 6 of the drawings. The/downward strokeof the plunger forces the two cams apart and thereby press the two jaws -g-gagainst opposite sides of the blank to complete the link, as :hereinbefore described.

In connection with fthe described chain linking machine I prefer to employ an appa- .ratus for automatically winding the chain 4upon adrum -N-. To impart the requisite imotion to the drum I mount on the shaft of lthe driving pulley -P, a crank-wheel P- andon the upper ends of standards -O-d or other suitable supports I journal a horizontal shaft kto which is fastened a ratchetwheel -O- and pulley O. On said shaft is also mounted alever J- one endof which is slotted longitudinally and receives through it the wrist-pin of the crank-wheel -P-'- .which imparts an oscillatory motion to the lever. A `pawl -J- connected to the :lever and engaging the ratchet wheel -0- transmits intermittent rotary motion to the latter The' jaws -eg-egreceive their requisite recip- IIO and to the pulley 0' To the lower portion of the standard O is journaled the shaft to which are fastened a pulley Q and drum N. A belt connecting the two pulleys O and Q transmits an intermittent motion to the drum N which winds upon it the chain formed by my chain linking machine hereinbefore described.

If desired a suitable apparatus maybe employed for automatically registering the nurnber of feet of chain wound upon the drum. For exemplitication I have shown a registering apparatus R of the form of a plurality of wheels R R mounted loosely on one and the same shaft and each having the numerals from O to 9 plainly marked and uniformly distributed upon the periphery thereof. Said wheels are surrounded by a case having in front of each wheel an aperture of a size to expose one of the numerals on the Wheel.

To the outer side4 of the first wheel (which represents units), is attached a ratchet-wheel r and to the opposite side of said wheel is connected a pawl. which is adapted to engage a ratchet-wheel on the adjacent yside of the second Wheel. A spring t' holds the said pawl normally out of engagement with the ratchet-wheel. A cam o on the inner side of the case which incloses the Wheel throws the pawl in engagement with the ratchet-wheel of the second wheel at the end of each revolution of the first wheel and' thus motion is imparted to-the second wheel. The cam is of such a length as to hold the pawl in its engagement only during a sudicient period to turn the second Wheel a distance equal to that from center to center of two adjacent numerals, and in a like manner each succeeding wheel receives such periodical motion at the end of each complete revolution of the preceding wheel. The first or unit registering wheel R receivesvintermittent rotary motion by means of a rockarrn u mounted on the shaft of the registering wheels and connected at one end to the end of the lever J and provided at the opposite end with a pawl u which engages the ratchet-Wheel r on the aforesaid registering wheel.

The described mechanisms for transmitting motion to the first or unit registering wheel are so proportioned and arranged that said registering wheel is turned the distance from center to center of two adjacent numerals thereon during the time required to manufacture one foot of chain by the hereinbefore described chain-linking machine, and thus the length of the chain produced by said machine is automatically measured and registered.

It is obvious that an eccentric may be used in lieu of the crank-wheel P and sprocket-wheels and a chain may be substituted for the pulleys O and Q and their driving belt, and I therefore do not limit myself in that respect.

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

l. In combination with the base-plate A provided with the slot a the chute O push-bar b and the lever f provided with the pin f and pivoted to move vertically and laterally as set forth.

2. In combination with the base-plate A provided with the slot o the chute O push-bar b and the revoluble bar c provided with the transverse groove c substantially as and for the purpose setforth.

3. In combination with the base-plate A provided with the slot o. the revoluble bar c provided with the transverse groove c and the lever f provided with the pin f substantially as set forth.

4. In combination with the base-plate A provided with the slot a the chute O push-bar Z2 revoluble bar c provided with the transverse groove c" and the lever provided with the pin f substantially as described and shown.

5. In combination with the base-plate A provided With the slot lt the chute O push-bar b revoluble bar cprovided with the groove c the lever provided with pin j" and the reciprocating jaws g g all combined to operate as set forth.

6. In combination with the base-plate A in contact with the cam e substantially as set forth.

7. The combination of the bars g g' moving in a guide g the jaws g g attached to one end of said bars, the cams Z Z attached to the opposite end of the bars, the spring s drawing the cams toward each other, and the plunger I entering between said cams as set forth.

8. The chute O disposed erect and of rectangular form in cross section and terminating with a laterally curved base provided with vertical slots at opposite edges, in coinbination with the puslrbar b entering one of said slots to push the bottom blank from the chute as set forth.

9. In combination with the base-plate A provided with the slot ctthe lever f provided at one end with the laterally pro jecting pin f and at the opposite end with the longitudinally projecting pin vithe pitman II imparting a vertical oscillatory motion to said lever, the bracket o provided with the cam-groove O entered by the pin n and the guard t guiding the IOC IIO

pin and in' connection with said cam-groove ratchet transmitting motion from the lever to Io imparting a' lateral movement to the lever, one ofthe pulleys asset forth.A substantially as set forth. In testimony whereof I have hereunto signed 10. In combination With the driving shaft my name this 27th day of September, 1892. 5 of the chain linking maohine,and a. drum for winding up' the chain issuing therefrom, t MARTIN HEIM. [In s] crank mounted on said shaft, a lever aotu- Witnesses:

ated by said crank,` pulleys and a, belt trans- H. M. SEAMANS",

mitting motion to the drum, and a. paw] and C. L.- BENDIXOM

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