US1137103A - Stamping-machine. - Google Patents

Description

w. WINTER. STAMPING MACHINE. APPHCATION FILED JUNE 8| 1909.

H. W. WINTER.

STAMPING MACHINE. APPLlCATiON-FILED JUNEZ8.'1Q09.

Patented. Apr. 27, 1915.

2 SHEETSSHEET 2- 'of the type shovercferreci to, which shin t Tim miss it) Q liii iimtiij nnw l HENRY W. Witness, on ntnwnnsn, nmssncm ss'rrs, essmnon T0) UNITED SHOE mscmnnm' con/men's, s2 sn rnnson, NEW JERSEY, A comonnwron on NEW JERSEY.

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Letters. 'ZFstent sTewPme-"nscnmn Patented Am'. 27, 1l9il5.

To aZZ when r, it may concern J Be it known that i, H a citizen of UllltjQCi u es, residii'zg" at Mcthuen, the county cf Essex and State oi Msssacl'msetts, have invente certain in prcvenisnts in i'jtsmplng Machines, of

Wllii he followingdescription, in connection with the acccinp nying drawings, is specificstisn the drawings 'iafniicnting like parts inthe seveinl figures. I

Thisqinvention relates to machines for stamping sheet material and particularly relates/to machines used in the msnufactu're of hoots'snd shoes'i'or stamping size Width, color mans, etc, 011- sole ieather, upper leather or linings.

It is an object of the present inyention to provide a power operated. stumping machine be simple in constrnction silent, speedy and accuratein operation and cepshle of preducin clear and permanent impressions on various kinds of stock.

it is essential that-ninachine fer stamping scles and uppers shorlziheve a large n EYIiEGT' O'f rent his 11 accession: z ne movable with fosition. for

minty into stamping the this end in visw it iezttnre'of "the resent invention consists in orovichne' n U L) stamping machine with. a plurality of die carrying); disks or turrets, each disk, having mountea thereonn number of differentclies for impressing the, 'vzuiisus characters npcn the stock and. being provided? with means I ment.

An iniportant fentnre'of the invention lies in the construction of the die carrying disks and the arrangement for mounting the 111(11- "v'idual (lies therein. Preferably the disks may he cut away onone side leaving a peripheral annular, flange which army be drilled for the reception of-the shanks of the marking-(lies. This construction its-psi.

reference characters on- --unexpected variations in tiethickness of ticuierlysdvsntsgcous since it permits am: y cess to the ends of the shanks which may} be drawn in radially and held by suitable screws or nntsg'thus forming'a permanent the die carrying disks.

To prevent the turning of-the marking connection hetweenthe marking dies. and:

- tiies relatively to the die carrying disks theperipheral face of the latter may be formed with sockets for each die, the sockets being 4 formed preferably hetween rihs extending parallel tc theaggis of the disks. ,The ribs 65.

may he further utilized by placing upon them index characters for indicating-- the character of that marking die which is in stamping position.

For the purpose of utilizing-a, machine forcperating on stocks of various thicknesses it is important that the point of nearest approach of the stamping head" to the work table should bB'ELdjllStflblQg in order that the marking dies may approach 7:" the work table more closely when thin materizil is to be stamped than when relatively think material, such as sole leather, is to be stamped.

between the stain in head. and its actulmtb ing inc-ans thereby'allowin for slight and the work mes stamped I With this end View the present in-' vention contemplates the provision of a yielding connection preferably located between the carrier and the articulated mem her shove mentioned, which member is c0n- -10( nected with thecarrlcr nctuatlng means.

The invention further contemplates the) provision of means, operating independ ently of the means. for adjusting the point of nearest approach of stamping heads-11d Work table," for regulating the degree of l stamping stamped in order that. the impressions may 313i be located at the desired points.

Another feature of the present invention consists in 'providin a movably mounted gage arranged to project considerably above the work table, when the stamping head of the machine is in its elevated position in order to prevent work, presented carelessly to the machine, from being pushed in over I the gage.

" Fig. 5 is a sectional view of the die carry- For insuring the safety .of the operator the invention contemplates" as another feature the provision of a guard surrounding the work table so constructed and arranged that the operator in presenting the work to the machine can not accidentally get his fingers caught between the stamping head and work table. Such a guard may preferably take the form of a continuous strip located a suflicient distance above the work table to allow free insertion of the work and atthe same timp prevent accident to the operator. l

The advantages above set forth and others incident to the invention will be best under stood and appreciated from the following description of a preferred embodiment to- 'gether with the accompanying drawings in which;

Figure 1 is a view in perspective of a stamping machine constructed in accord ance with my invention; Fig. 2 is a trans verse sectional view on the line 2-2'of Fig. 3; Fig. 3 is a side elevation of the machine illustrated in Fig. 1, p'art'of the frame of the machine being broken away; Fig. 4; is a view in perspective of the gage member;

ing disks or turrets; Fig. 6 illustrates a blank having stamped thereon a size, width and case number.

The frame of the machine comprises a box .shaped casting 3 having formed therein bearings for the main driving shaft 4 which is actuated by the pulley 5 from any suitable source of power. Fast on the main shaft 4: isthe pinion 6 meshing with a larger pinion 7 loosely mounted in the counter shaft 8. Between the pinion 7 and an eccentric 18, also loosely mounted on the shaft 8, is interposed any suitable clutch mechanism, whereby the operator may clutch the pinion and eccentric together for actuating the stamping head when it is desired to make an impression.

In the illustrated embodiment of the invention a roller clutch, commonly known as the Horton clutch, is employed. This clutch includes a loose member,-which in the present case comprises the gear or pinion 7, a driven member 18 and a roller carrying member 10 loosely mounted on the driven member. A spring tends to move the roller carrying member 10 relative to the driven member for engaging the clutch by carrying the rollers into the narrower part of wedge shaped recesses formed in the driven memb'er 18in which position the rollers become wedged between the inner surface of the gear 7 and the member 18, thus forming a driving connection. A projection 11 is formed upon the periphery of the roller carryin member 10 and an abutment 12 is mounte for movement into the path of the projection 11 for enga ing the latter and stopping the rotation o the roller carrying member 10. When this takes place the driven member, owing to its inertia will rotate slightly with respect to the roller carrying member, thus carrying the rollers into the deeper end of the" pockets and so in terrupting the driving connection. 5' The roller carrying member 10 and the drivenmcmber 18 will then remain "at rest until tli abutment 12 is 'moved' out of engagement with the projection 11 when thespring above mentioned will cause the roller carrying member 10 to rotate with respect to the driven member and the clutch to engage again.

The abutment 12 is yieldingly mounted in an arm 13 which is pivoted on a pin 14 in close proximity to the vertical arm of a bell crank lever 15, also pivoted on the pin 14 and connected with a treadle red, as shown in Fig. 3. A laterally extending pin 16 projects from the shank of the abutment 12 and a cooperating spring actuated latch 17 is mounted in the vertical arm of the bell crank lever and so located as to engage the pin 16 when the abutment 12 is forced downwardly by the projection 11 on the roller carrying member 10.

The mechanism above described serves to insure that the clutch shall be engaged for a single revolution only, regardless of whether the operator keeps the trcadle rod depressed or not. When the machine is at rest the abutment 12 is depressed'and the pin 16 stands in the path of the latch 17. Under these conditions, depressing the treadle rod moves the abutment out of engagement with the projection 12-and allows the clutch to engage. The abutment, however, on being released from the pr cssurc of the roller carrying member moves upwardly in the arm 12-5 and carries the pin 16 above the latch 17. The arm 13 and abutment 12 are then returned toward the clutch by a spiral spring (not shown) which encircles the pin 14 and the abutment 12 is again in position to engage the projection 11 and cause disengagement of the clutch. When the treadleposition, the latch 17 yielding downwardly as :it passes'underthe-pin16. With this construction it willpbe apparent that a' nonrepeating operation of the machine is insuredandthat but one impression will occur for each depression of the treadle rod.

found desirableto provide a brakerhember 203 which frictionally retards the eccentric 18. and insures a satisfactory operation of thecl-utch. I a p The eccentric .18 mounted on the counter shaft Sactuates an eccentric strap 19 which,

in :turn, serves to imp.art .a1i oscillation to thestampmg head "of the machine. I The disks 21, 22 and 23 carrying the marking F'dies24 "and being rotatably mounted on a spindle 25 comprise the stamping head of 'themachine and are carried by the forward end'of the lever 26Tjournaled ,on the pivot 27 in theframe. The eccentric strap 19 is *connected-with the lever 26 through the ,1 wardcnd of the and consequently medium of the bell crank .lever28 which is pivoted at 29 on the lever 26 .and allowed} toy'ield slightlyrwith respect to. the latter y when the marking dies encounter the work in order to allow for variations in the thickness ofthe stock. To this end a pin 30,

havingthe hand wheel 31 keyed oirits upper end, is threadedinto the lever 26 and-passes through a slot in'theupper arm of'the bell crank lever 28.

A; stifficompression spring 32- encircles the pi'n'30 and normally holds the upperarm of the bell crank lever 28 against a boss on the hub of.the hand wheel 31. The spring 32 "atitslowerend bears upon a collar 33 formed integral with or otherwise made' fast onthe threaded pin 30. Above the hand wheel 31 is a nut 34 and turning this nut on the pin 30 thewheel 31 is moved longitudinally wherb-y the length of the sp'ring32-will be reduced or increased andthe stiif'nessof the yielding connection between" the lever 26 and its actuating means correspondingly adjusted;

The yielding connection above described will allow for the proper impression of materials' varying in thickness by relatively,

inconsiderable amounts but in order to permitadjustment of the point "of nearest ap-.

proach of stamping head and Worktable to adapt the machine for stamping materials differing considerably'in thickness, such as upper leather and sole leather, the relative position of the bell crank lever 28 and'the l v .of the die-carrying d1sks'21, 22 and-23. As v lever or c'arrier-26 may' be adjusted. I Such adjustment is effected-by screwing the pin work table. As will be' apparent thelength the point of nearest approach of dies and ofthe springi32 and consequently the stifi mess of the yielding connections is unaffected by this adjust t; A

onesubstantially plane surface and are res cess'edon the other side to form an annular r peripheral flange. 'The marking dies 2%are Onaccount of the light-load upon the driven'member oi the clutchit has been provide'd'with cylindrical shanks which are inserted in holes drilled'through the fianges of the die-carryingdisk s and-the dies are 7 shanks of thedies, asshownin Fig. 5.

of the disks, extending parallel with their common-axis, the spindle 25, and these ribs form sockets for the marking dies and main-= Itain them inproper alinement. The ribs 45. also serve as a convenient location: for. 111-.

dex characters, which', in connection with an ndex bar indicate which nfarking fretained in place and drawn against the-" disks by screws extending into the e e Ribs are provided on he peripheries dies are inoperative position; Theribs' le have still another function which consists tents 4z6 to insure the stopping. of the die carrying disks with e or another mark-- have outwardlyfextending hubs each provided with two clutch teeth whichengage with a correspondingly toothedhuo on the hand wheels 42 and 4-3, respectively. The vdisk 21Iis provided witha hub of greater diameter than the others and is journaled upon the hub' ot the disk '22- and connects with its hand "Wl'lfll 4'1 by a two tooth ing head on their assembled relation. v Shdably mounted in a boss formed in coiiperating with the spring actuated dc clutchf-as in tliecase of the other disks. A

washer and screw on either end of the spindle 25 serve to keep the parts of the stamp.-

in the front side ot tl1e'frame 3 is a rod 55 carrymg a socket 56in which is slidably mounted the shank 57 oifthe gage block 58'wliich pro-" jects upwardly'at the back of the work table the stamped markin s with respect tothe edge of the ,work, by oosening the set screw 59 andsliding the rod in orout'as the whereby it isiniaint'ained 'out of the path .115 34: and serves to determine thelocation ot. the. work presented "in stainping position. The gage may be ustedh'nvard and from I the work table, forfvarying'the position-of the stamping head is raised the forwardly extending arms "62 ofthe' lever 26' engage imity with, but not touching the marking dies. As the 1 stamping head is moved toward the work table to make an impres-.

sion the gage block recedes till the arms 62 come into contact with the stops 63 which prevent further movement of the lever 26 and are so adjusted that the marking dies can not be forced against the work table and so damaged. By limiting the downward movement of the arms 62 the stops 63 also determine the lowest point in the path of movement of the gage block -58. V -For the purpose of preventing the operator from getting his fingers caught between the dies and the work table when presenting work to the machine, there is provided a guard comprising a ductile rod or heavy wire attached at either side of the frame in the rear of the stamping head and extending across the front of the work table a short distance above the table, allowing sheet material to be inserted between the guard and the table but preventing the in-- sertion of the operators fingers.

In operation the die-carrying disks are set with the desired dies in the stamping position. The work A is then placed on the table 3t bearingagainstthe gage block 58 and the abutment'lQ disengaged from the projection 11 which allows the clutch to engage and the eccentric 18 to be rotated. The eccentric stra 19 thereupon actuates the lever 26 whici presses the dies firmly on the work with the degrees of pressure determined by the compression of the spring 32. Continued rotation of the shaft elevates the stamping head and after one revolution the projection 11 isagain engaged by the abutment 12 andthe machine brought to a stop.

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

1. A machine of. the class described, having, in combination, a work table and a movably mounted stamping head cooperating with said table for stamping sheet material, said stamping head comprising a plurality of flanged die-carrying disks, marking dies having shanks extending through the flanges of said disks and means for drawing said shanks inwardly to hold said dies rigidly against the flange in stamping position.

2. A ma-chineof the class described, having, in combination, a work table and a movably mounted stamping head coiiperating withsaid table for stamping sheet material, said stamping head comprising diecarrying disks having peripheral annular flanges and axially extending ribs forming sockets, together-with marking dies, having shanks extending through said flanges, said dies being prevented from turning by said ribs.

3. A machine of the class described, hav

ing, in combination, a work table, a stamping head movable to and from said work table, a carrier for said stamping head, and actuating means therefor, a lever pivoted on said carrier. and adjustable with respect thereto, whereby adjustment of the point of nearest approach of the stamping head and work table may be effected.

4. A machine of the class described,-having, in combination, a work table,a stamping head movable to and from said work table, a carrier for said stamping head and actuating means therefor, a lever pivoted on said carrier and connected with said actuating means, said lever being adjustable with respect to said carrier, whereby adjustment of the point of nearest approach of ithe stamping head and work table may be effected.

5. A machine of the class described, having in combination, a work table, a stamping head carrier mounted for oscillation about an axis at one side of the table and having an arm idisposed below the plane of ing head movable to and from said work table, a carrier for said stamping head, a. pin adjustably connected with said carrier and a springcarried by said pin, actuating means for said arrier, and a connecting member normally maintained in a definite relation .with said carrier by said spring and adjustable relatively to said carrier by means of said pin and independently of said spring.

7. A machine of the class described, having, in combination, a work table, a stamping head movable to and from said work table, a carrier for said stamping head, actuating means therefor yieldingly connected with said carrier, means for varying the stiffness of said connection, and means for adjusting the point of nearest approach of the stamping head and work table.

8. A machine of the class described, having, in combination,awork table, a stampin head movable to and from said work table, a carrier for said stamping head, a bell crank lever pivoted thereto, actuating means for said carrier connected to said bell crank lever, and means for adjusting the relative position of said carrier and said bell crank lever. j

9. A machine of t heelass described, having, in combination,awork table, a stampinghead movable to and from said table, a carrier therefor, and actuating meansfor said carrier, an articulated member interposed between said actuating means and the posed between said carrier'and its carrier, a spring maintaining said" articulated member in a predeterminedrelation with said carrier, and means for adjusting said relation without affecting the action of said spring, i

10. A machine of the class described, having, in combination, a Work table, a stamp ing head movable to and from said table, a carrier therefor, and actuating means for said-"carrier, an articulated member interg posed between said carrier and its actuating means, a spring maintaii'iing said articulated member in a predetermined relation with said carrier,-means for moving said spring bodily with respect to said carrier for ad 'justing the point of nearest approach of said stamping head and table, and means for adjusting stress. developedby said spring 11. .iimachine of the classdescribed, hav-- ing, in combination, a Work table, a staring ing head movable to and from said table, a carrier thereiorand actuating means for said carrier, an articulated member inten actuating means, a spring maintaining said articulated member 111 a predetermined relation with said carrier, means for moving said bodily with articulated member and relatively to said carrier, and means for adjusting the stress developed by said spring.v

12, A machine of the class described ha-ving, in combination, a Work table having a plane supporting face, a stamping head movable toward and from the table, mounted to reciprocate in a path right angles to the surface of the Work tabl a spring tending to retract the gage below the surface of the Work table, and an oscillating actuating lever; for elevating t; e gage above the surface of the Work table after each stamping movement of the heed.v

13. A machine of the class des ribed has mg, in combination, a work table, a coopersting stamping head, a gage movable'in a path at right angles to the Work table, a-

power driven actuator and means, including a yielding motion from the actuator to the gage.

- 14:; A machine of the class described hav ing, in combination, a

tively to a the work table, a power drivenactuator, transmission means, including a yielding connection, 1nterposed'between the connection, for transmitting Work table, a coiipcrating stamping head, a gage Inovable'relaactuator and the gage, and adjustable means for determining the path of the gage.

15. A machine of the class described, having, in combination, a Work table and a movably mounted stamping head cooperating with said table, together with a laterally adjustable gage mounted to reciprocate vertically and means for causing'reciprocation of 1n COHJllllOljlOIl said gage in both directions with themovement of said stamping head.

16. A. machine of the class described, having, in cornbinaion, a Work table anda novabljv mounted staniping head'coiiper ing Withsaid table, together With a gage,

means for normally retracting said gage,

and means for moving said game in a path l l 1 *l l th t 'l t 1 substantial; pale ie. to 0.. sale m v able stamping head 17., A machine .of the class described 1m:

ing, in combination, a Work stamping head movable toward and from said a socket piece mounted for adjustment in direction parallel witi the face of said Work support, and a gage support, a

mounted in socket i ce for movement Pl to the face .u'ectien a ic i support, a edfor reciprocation in a path bstantially at right an i s to the ear said support, or neinber znoval' race oi lie about the axis of oscill, .i movement to said head 1o imparting said gage. 19. it mach'ne oi" the class described, havaf ion, a Work: table and a {will 'n head cooperating egg ether with a stationary colnprji a c intinuoas strip of due-- tile material, said if being attached to the frame ol the machine at a point in the rear said stamping head and extending forwardly and across the front of said Work table a predetermined height above it.

in testimony whereof l have signed my name to this specification in the presence of two subscribing Witnesses.

l ll li ltl" W. lVlNl-llilll,

Witnesses: I

Hnnanirr W. KENWAY, ARTHUR Rosanne.

-Correction in Letters Patent No. 1,137,103.

It is hereby certified that in Letters Patent No. 1,137,103, granted April 27,

1915, upon the application of Henry W. Winter, of Methuen, Massachusetts, for

an improvement in Stamping-Machines,- an error appears in the printed specification requiring correction as follows: Page 3, line 105, for the word connects" read connected; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent O fiice.

Signed and sealed this 25th day of January, A. D., 1916.

R. F. WHITEHEAD, Acting GommiseionetofPatents.

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