US2428879A - Attachment for metallic leaf applying presses - Google Patents

Description

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Filed May l1, 1944 ATTACHMENT FOR METALLIC'LEAF APPLYING PR Oct. 14, 1947.` J, KAHN 21,428,879

I .ATTACHMENT FOR METALLIC LEAF APPLYNG PRESSES Filed may l11, 1944. 4 sheets-sheet 2 Oct. 14, 1947. J. KAHN 2,428,879

ATTACHMENT FOR METALLIC VI .EAE APPLYING PRESSES 'Filed May 11, 1944 4 sheets-sheet 5 I L -J V el 74d. Pri! l 2,428,879 NG PRESSES' v 4 shams-sheen 4 Oct. 14, 1947. YJ. K AHN ATTACHMENT FOR METALLIC LEAF' APPLYI Filed May 11, 1944 E Patented ct. 14, 1947 UNITED ATTACHMENT APPLYIN Eon METALLIC LEAF,

G PRESSES Joseph Kahn, Chicago, Ill.

Application May Claims.

feeding attachments for gold stamping and embossing presses, and more particularly to such attachments for hand operated presses although capable of attachment also to power operated ones.

stamping and embossing gold borders upon book covers, picture frames, labels and in all such other instances where such gold stamping and embossing may be desired, but it is also highly efflcient for doing all kinds of gold stamping and embossing on cardboard, paper, leather, and velvet cloth, and for doing fancy gold and aluminum leaf embossing on cigar boxes, cigar labels or any other kind of material.

11, 1e44,seria1No. 535,096

relates to improvements in This attachment is most essential in gold One of the objects of my invention is to provide means whereby in stamping and embossing gold borders and the like a great saving in gold is effected, thus greatly reducing the cost of this class of work, broadening its field of operation so that its use may be extendedin a manner herey tofore considered impractical due to its cost. The gold stock for this type of work comes in rolls containing approximately 250 feet of metallic leaf of widths to suit the type of work in hand.

In border work, such as book covers, etc., the f gold orV other material inside the borders was wasted or its future use greatly limited, whereas in the instant mechanism all of the material, with but an infinitesimal loss, often less than one per cent, is utilized.

Another object of the present invention is to provide a novel feeding means or attachment composed of few parts that are readily accessible for adjustment, repair or replacement, that are durable and not likely to get out are inexpensive to manufacture, readily applied to or removed from the press and that are highly eiiicient in operation.

With the foregoing the invention consists in rangement of parts to be hereinafter fully described, pointed out in the claims and illustrated in the accompanying drawings that form a part of this patent, and in which Figure l is a front view of gold stamping and embossing the application of the feeding attachment;

Fig. 2 is a side View of Fig. 1, taken on the line 2-2 thereof;

and other objects in view of order, that z the combination and ar- 1 Y a hand-operated press illustrating Fig. 3 is a view of the press and attachment,

of the press and of the feeding mechanism in elevation4 andA partly in section, taken on the line 6--6 of Fig. 2;

Fig. 'I is a vdetail elevational view of one spool shaft employed;

Fig. 8 is an elevational view of a wing lock or key employed for securing a spool to its shaft;

Fig. 9 is a top plan view showing the relation of the ribbons to each other and to the die;

Fig. 10 is a plan view lof a'portion of the narrow strip indicating its relation to the die Fig. 11 is a view oi a wide metal-coated ribbon illustrating the manner in which the metallic coating is completely yutilized by the instant attachment; and

Fig. 12. is a face view of a die.

The construction shown in the drawings comprises the sides ,I of the stamping and embossing press, a reciprocable ram or head Ia, the die block 2 to which thedie 3 is secured in any suitable rnanner and the bed 4 on which the book or other object 4a to be embossed is placed. The head plate 5 that extends across the face of the machine is formed near its ends with the vertical slots 6, 6 in which are disposed the shanks of the pins 1 to slidably secure thereto the plate 8. The said plate 8 oi narrow construction ex- .tends longitudinally of said plate 5 and has secured thereto the horizontally disposed U-shaped bracket 9, the sides oi which extend forwardly and carry the shorter inverted U-shaped frame I0 and, in advance thereof, the larger inverted U-shaped frame II, said frames and bracket being moved vertically together as the plate 8 is adjusted` with respect to the head plate 5.

VRemovably mounted in the sides of the frame Ill is the shaft I2 of the large core I3 upon which the ribbon having a removable layer of gold or other material I4 is wound by rotation of the handle I5 at the end of said shaft. When said ribbon of material'ld is received from the factory, it usually .carries a short strip of paper at one end which is secured to said spool by mucilage, brads, or otherwise, to serve as a lead for the ribbon to start it upon the core. From the core I3 the ribbon extends downwardly and about a pin shaft I6 carried by frame Ill and between iianged guide collars I1, I1 adjustable upon said shaft, rearwardly. of the press between the die 3 and bed and beyond the press proper beneath I8 and between same an a wire rod I9 carried Aby said bar to the ribbon spool or core 20 operatively vand removably disposed upon collar inserts'2l, 2l upon a shaft 22 supported in brackets 23, 23 arranged upon a span bar 24 connecting the bifurcated rear end of the tail apron 25 'of the press, which apron also supports the said guide bar.

The core 20 is hollow and at its ends receives the collar inserts 2| which are adjustably secured to shaft 22 by setscrews 31 which also secure in position the discs 38 arranged upon said inserts therein. Additional tension by spring 63 mountcontiguous to the ribbon to conne same thereedon the frame 34 and bearing on the core 36 between and preventlateral weaving orribbon is also provided. shift. The shaft 22 is removably supported in Referring again to the narrow plate 8 that said brackets 23, one bracket having a round carries the bracket 9, said plate is connected by perforation to receive one end of said shaft, the link 58 and pin 59, movable in a slot 60 in the opposite bracket being formed .with an oblique head plate 5, to a hand lever 6I connected by pin slot 3e to receive said shaft, the hub ori-the `62 to' said plate 5 so that by means of said lever bracket 23 -being provided with a likeslot to the plate 8 with bracket 9, frames l0 and Il and receive the shaft, a wing screw 42 serving to hold 10 connections may be raised from the position the shaft 22 in position. While this form of shaft shown in Fig. 1 to that shown in Figs. 2 and 6, and spool assembly is shown, any other means in which latter position the die block 2 may be desired may be substituted therefor. removed by its handles2a to remove or insert a Referring now to the frame Il, removably and die. 4As shown in Fig. 6, the die block I is doveoperatively supported in the sides thereof are the tailed to the re'ciprocable ram or head la. To

onthe core 29 for the two narrow ribbon spool bracket 4 secure'dvre'movably to one side 'of the cores Sil, 30, one upon each side of the frame, frame vIl has adjustably connected thereto by set each spool `corehavingwound thereupon by ro- 20 screw 55 a shaft 6'6 that carries an indicator 6l tation of said handle the narrow strips of metaldirectedv to the ribbon 3 I to denote the proper lic ribbon 3l that extend downwardly and about spacing between impressions. the pinshaft 3,2 supported by the 4endswof 4the The shaft 66 with indicator '61 is reversible;

frame Il and then rearwardly between the bed that is, the shaft may be removed from the sup- 4 ;and die 3 andover the rearedge 33 of the Vbed 4 25 porting bracketand inserted with the indicator tokeep the ribbon lc learof saidb'ed, said ribbon beneath or about as far below the bracket as it then passing between'the ends of the bifurcated is'above same in uppermost position and in both apron and beneath the base of an U-shaped positions it is `readable 'upon the ribbon and thenaboutfthemetallicribbon spools 3b narrow ribbons pass lbeneath vthe wide ribbon frame 34. For the gold stamping or embossing operation `In the assemblyshownin connection with core the design is placed in the die block in Vthe 3 5. nd core v 29, guide discs 44 adjustable longiusual manner with `thel ribbons 'passing betudinallyofsaid c oresfserve to'guide'the metallic tween :the bed '4 and die 3. The objects 4a, ri-bbon and are retained in'adjsted positions by to portions of which a lm of metal such as gold the sectional brackets and screws 45, the leaf isto be applied, are put in position succesbraoket sections being secured to said discs and 40 sivkely'underneath the leaf Carrier ribbons I4 and to the cores. The core 29 is formedwith diamet- 2l, and the'die 3 is'broughtdown on each'object rically opposed longitudinal'keywayrecesses'41, when p'laced in a press to cause the metallic 41, in whihone end of the ribbon is secured,` and coating on the ribbons underneath the embossed said narrow spool corsv3`p3`'have keyways regportions of the die to be removed `from the ribisteijing with the keywaysll'and la ke'y 48 is in- 45 bons and transferred to the object to be coated. serted in thekeyways. narrowspool cores 3D Formrlyif a borderfor a bookora picture being retained in adjusted position upon said frame or theflike w core 29 thereby, each l :`ey 48V having van arm or 'afterthe lines -were imprinted upon the object, flange which abuts'a narrow spool core 30 which Y. the ribbon 'wasadv'anced completely beyond the is thus positioned `lc'rtweon two of said larms 49 50 ldie br design'an'd'inmost cases a portion' of meand a disc 4 4. tallicribbon' equal tothe space between theb'or- As the metall-ic ribbon passes from the rear der'li'nes was'l'o'st orwasted Iand seldom could be sD,0Ol s 2 0, 35, 35 throughV the press to vthe forward utilized for any purpose. With the instant' strucdead ribb n core lIliana narrow spool cores r30, ture, if the stamping or embossing is inthe form 30, it is kept undertensinto prevent sagging, ofhorizontalan'd vertical linesY forming -a square, the narrowribbons passing beneath'the frame oblong, rectangle or similar ligure, little or none 34, ov r the' 'edge'ea 'and' abo'dtpio Shar-to2 while 'of the coated ribbon between the border linee is the wide ribbon Mlpafsses from'the spool 20 bewasted or'lost. Referring now to the design tween wirerod'Hlfandgiiide bar about pin shown in the die, Fig..ll2,' a'nfoblongor rectanshaft to the core i3. The stub shafts 26, 21 60 gular ligure is shown. To make the rst impressha'fterigag'ing'notchfor"slot"5l, the Yupper'edge 65 die. upon the object andthe wide ribbon'is so l0 or Il, said clamp being kept in resilient pres- 70 amount of ribbon n'owused` from the narrow spools sure engagement with said lip 52'bylthe clamping is 'equal to the' length "of the borders 7G, H ,fand screw 56 connectingit to the frame. In this way the wide ribbon used is equal to the width of the any tension desired oponlthe'shaft maybe exhorizontal borders es, e9,

erted. The shaft 21'or'shaft l2`is` received in the 'In use, the "length of a" design is considered las frame Il or l0 through an oblique slot 51 formed 75 the distance it covers longitudinally of the ribas otherwise the narrow spools which provide the ribbon for impressions longitudinally would be too quickly used up. Therefore, the lines 19, ll, Fig. 12, are the vertical lines of the impression, and lines 98, E9 are the horizontal or cross-ribbon ones.

In using the indicator $1,- design is the length of a line 19 or 1l. known or determined thereof. The wide ribbon is in first impression when it extends through the press to the core I3. lThe narrow ribbons 3l are in position when they extend through the press to the core 29. An impression is now made. The ob ject 4a which has just been embossed is removed bon,

the length of the This is and another object to be embossed is put in its place. Thereafter the wide ribbon is advanced the width of one horizontal line 68 or iis and the narrow ribbons are advanced the length of one line 'I9 or 1|, plus the width of one horizontal line. The distance which the wide ribbon is to be advanced can be determined by observation and experience. The distance which the narrow ribbons should be advanced is determined by the use of the indicator 5l. The frontend l2 (Fig. of the narrow ribbon is brought into registration with the indicator 91. impression can now be made. This operation is repeated for each obiect to be embossed.

When the sho-rt pull movements of the wide ribbon have used up the ribbon between the lines 58, 69 a long pull of the wide ribbon is made equal to the distance between the lines 58, 59 .pius two horizontal line widths. line width vances of the wide ribbon are known as short pulls while the longer ribbon movements are known as long pulls. In this manner all of the ribbon -material in the wide ribbon is used as denoted in Fig. 11 and all of the ribbon on the short spools is utilized except that in excess of the width of the corresponding border of the die design.

Further modifications will be apparent to those skilled in the art and it is desired, therefore, that the invention be limited only by the scope of the appended claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1, In feeding mechanism for metallic leaf applying presses, the combination with aframe, and impress mechanism carried thereby, of a wide metallic leaf spool for live leaf operatively carried by, said frame rearwardly of said impress mechanism, narrow metallic leaf spools for live leaf operatively carried by said frame rearwardly of said impress mechanism and laterally of said wide leaf spool, all of said ribbon passing through said impress mechanism, the leaf of said narrow overlapping the leaf disposed forand supported thereby, frames, one after same has passed from said impress mechanism, a handle for rotating said core, cores receiving the narrow leaf after same has passed through said impress mechanism, a handle for said cores, and an indicator carried by one spaced frame readable in connection with said leaf.

2. In feeding mechanism for lineal embossing and stamping presses, the combination with a frame and die impress mechanism carried by said frame, of metallic leaf spools mounted on said frame, spaced frames adjustably connected to`said first named frame, metallic leaf receiving cores operatively carried by said spaced frames, the leaf of certain of said cores passing beneath and overlapping the leaf of another core, guide means for all leaf for directing same through said impress mechanism, d indicating means carried by one of said spaced frames for indicating the extent of advance of at least one of said leaves.

3. In feeding mechanism for border embossing and stamping presses and the like, the combination with a frame and die impress mechanism carried thereby, ed on said frame, spaced frames adjustably connected to said first named frame, metallic leaf receiving cores operatively carried by said spaced frames, the leaf of the cores of one frame being disposed beneath and overlapping the leaf of the core of the other frame, the leaf running from said spools through said impress mechanism to said cores, handles for operating said cores, and indicating means carried by one of said spaced frames readable upon the used leaf for determining the extent of successive handle movements necessary to effect contiguous consecutive live leaf impresses.

4. As an article of manufacture, an inverted U-shaped frame, a shaft in said frame, a sleeve slidable upon one frame side notched to engage said shaft, a lip at one end of said sleeve, a resilient clamp rockably secured to the inverted base of said frame having one downturned end frictionally engaging said lip in one position of said clamp, and a set screw releasably connecting said frame and clamp.

5. In a metallic coat applying press for applying a metal coating to a quadrilateral band surface surrounding a quadrilateral surface of an object to be coated, relatively reciprocable die and platen members, said die member having an impression portion comprising a quadrilateral band surface, said surface comprising two spaced relatively narrow longitudinally extending zones and two spaced relatively narrow transverse zones, means enabling feeding two narrow metal carrying sheets spaced apart to correspond to the spacing apa-rt of the narrow zones step by step underneath the press between operations, means enabling feeding a wide metal carrying strip lying between the two narrow strips step by step underneath operations, the step feed of the wide sheet for each operation being at least equal to and not materially greater than the width of a transversely extending zone feed of a narrow sheet being at least equal to the length of a longitudinally extending zone, the width of the wide sheet being substantially equal to the length of a transversely extending zone and the width of the narrow sheet being substantially equal to and not materially greater than the width of a longitudinally extending zone.

JOSEPH KAHN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS

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