Патент USA US2130188код для вставки
Sept. 13, 1938. s. KAUFFMANI ET AL ‘ 2,130,188 MARKING APPARATUS Filed’ May '7, 1936 a Sheets-Sheet 1 l ____ _.; ._ ___...__T_____ __._______._ I 24 H F; } grwcm/tow P) R GGQDoss Sept. 13, 1938; 2,130,188 s. KAUFFMAN ET'AL MARKING APPARATUS Filed May 7, 1956 5 Sheets-Sheet 5‘ ‘ I'Il|lI/lL- n‘l,. - 1-5! awe/whom G. G. Doss S. Kauffman r Cum/“ms 2,130,188?“ Patented Sept. 13, 1938 UN l 'i'E D STA? S‘ 2,130,188 MARKING APPARATUS Saul .Kauf’frnan and George G. Doss, Syracuse, N. Y. Applicaticn May 7, 1936, Serial No. 78,499 8 Claims. This'invention appertains to apparatus forem bossing, impressing, stamping, or otherwise mark ing workpieces, and more particularly, to an im provedldevice commonly known as a press, which is'primarily adapted for use in embossing and marking leather, such as shoe parts, glove parts, purses, hatbands, and the like. Other and vari~ ous applications of the invention will become readily‘apparent as the description proceeds, and lO‘it-is to be understood that there is no‘intention that the illustrative examples vhereinafter referred to be taken as restrictive of the general utility of the invention. For ‘the sake of brevity, ref erence will’ primarily be made to the applica l5 tion'of our new and improved apparatus to the shoe manufacturing industry, which is one of the largest ?elds of'practical’ use thereof, but there are numerous other ?elds in which the apparatus can be used to great advantage, notably, in the 20 printing-or marking of guide lines and designs, - upon rubber, cloth and other fabrics, and even metals and various compositions of a metallic, ?brous or other nature. Now in the shoe manufacturing industry, it iff; is vvery desirable and frequently necessary to pro vide guide marks‘or lines on the various leather parts so that the assembly thereof can be speedily effected- without sacri?cing neatness and uni formity‘of- the ?nished product. Heretofore, the 30 producing of guide lines and the like upon the leather has been accomplished principally by either piercing the leather with'a series of prick punches, or by making impressions in the leather, or'by'stamping the leather with an ink stamp. 3:5 The ?rst of these practices presents the disad vantage that the leather is more or less mutilated, due to the fact that the holes produced by the prick punches permanently remain in the leather. The second of the above mentioned practices, that 4.4): is, marking by making impressions in the leather, is frequently ineffective for the reason that the impressions are not always readily discernible, especially when the leather in which the impres sion‘is made has a rough surface. The third i -.method requires ‘a more or less complicated ap (Cl. 101—297) can'be effectively marked in a more discernible manner, and whichv is readily adaptable to‘: the performance of an impression or embossing op eration, such as in producing imitation’ stitch ing, perforations, etc., the markings being pro- 5 duced in colors or not, as desired. A still further object of the invention is to provide in an apparatusof this character, a suit able control whereby the permanency and/or discernibility of the markings may be varied as 10 desired, whether they be in the form' of impres sions or merely ink or other coloring matter, or combinations of both, such. control being prefer ably afforded with the aid of heat. Another object of the invention is toprovide T3 an apparatus wherein provision is made for a quick changing from one type of marking to-an other type, as for example, in changing from an embossing or impressing type of marking to‘a . purely printing type of marlnng, or vice versa; 20 or to combinations of the two types. A still further object of the ‘invention is to provide a simple and efficient means for ad justably locating the workpieces in the press‘ so that the embossing or marking‘ of suchv work- :1.) pieces willbe performed thereon at the proper points and with greater precision than has been heretofore practiced, such adjustability being particularly advantageous in working on shoe‘ parts and the like of various sizes and different 30 types. Still another object of the invention is to pro vide an improved mechanism for producing em bossing or plain markings in colors, such mech anism preferably embodying a color-carrying 35 medium such as a strip of carbon or other copy ing paper, ribbon, or the like, which is arranged to coact with the embossing or marking dies'so' as to produce a transfer of the color from the strip to the'workpiece with whatever degree of 40‘ prominence of the color is desired. Other and further objects and advantages ofv the invention will be hereinafter described, and! the novel features thereof de?ned in‘ the append ed claims. paratus when adapted for factory production work, the complications arising in the applica In the drawings:Figure 1 is a top plan view of our improved tion of the ink to the marking pattern or die. Allfofr the aforementioned old practices are par~ "ticularly ineifective when Working on‘ the raw or un?nished side of a piece of leather, marking device or press, the same being illus— One of the-primary objects of the present in~ vention is to- provide a simple, rugged, efficient and relatively inexpensive apparatus, by means Li’ U1 of which various shoe parts or other workpieces 4'1‘ trated in its closed position; Figure 2 is a transverse sectional View, taken 50‘ approximately midway between the ends or" the apparatus of Figure 1; Figure 3 is a longitudinal sectional view through‘ the apparatus of Figure 1, taken approximately midway between the front and back sides; H 551"» 2,130,188 2 . Figure 4 is a perspective view of the apparatus of Figures 1. to 3 inclusive, but showing the same in the open position and a shoe part or other workpiece positioned therein, a portion of the carbon orcopying strip being broken away to ex pose the marking die which is carried by the mov able head of the machine, and which served to produce the markings shown on the workpiece which is supported on the bed or base of the ma chine; Figure 5 is an enlarged top plan view of the work-piece, in this instance a shoe part, showing a typical design marked thereon; - Figure 6 is a view in top plan of still another form of workpiece, in this instance a shoe insole, and illustrating another typical form of marking or embossing which the apparatus of Figures 1 to 4 is adapted to perform; Figure 7 is an enlarged fragmentary view in front elevation, of the adjustable control for ad justing the position of the workpieces according to their particular size and type; Figure 8 is an enlarged fragmentary detail view in front elevation of the forward lefthand corner of the machine, having an arrangement as dis upon the size of the machine and the particular type of work which is being performed thereby. It is to be understood that the size of the press may be varied within comparatively wide limits. Where the workpieces are small, as in the case of shoe parts and the like, the press may be made large enough to emboss or otherwise mark several parts at one time, and this even without unduly increasing the Weight of the apparatus or the space occupied thereby. The compactness and especially light weight of the press are further marked advantages over those machines which have previously been used for such work. The head ‘I comprises a substantially rectangu lar hollow shell, which is provided on its top face with a multiplicity of ribs or ?ns I3, which have the dual function of strengthening the shell and radiating heat. The latter function will become more apparent as the description proceeds. Mounted within the head, is a block or slab M 20 which is preferably composed of a material hav ing both thermal as well as electrical insulating properties. An example of such material is the well known “Transite”, and we have found that the same is eminently suited for our purposes. closed in Figure l, and more particularly illustrat ing the embossing or marking die lock control, by which the die may be locked in position on the The lower face of the block I4 is preferably re cessed to receive an electrical heating unit, gen movable head, or released so as to be removed form of a core of generally rectangular form, and therefrom; and which may be also composed of “Transite”, and 30 Figure 9 is a fragmentary detail view in side elevation of the forward righthand corner of the apparatus, having an arrangement as illustrated in Figure 1, said view further illustrating the de tails of the die locking instrumentalities shown in Figure 8. Like reference characters designate correspond ing parts in the several figures of the drawings, According to the preferred embodiment of our invention, I designates the base or bed of the press, and there is provided on the rear side of the base a pair of laterally spaced bearing lugs 2, 2, which are preferably mounted so as to be vertically adjustable, as by means of the fasten Lil ing bolts 3, 3 which pass through a vertically elongated slot 4 in each bearing lug, the bolts be ing threadedly received in suitable openings 5 erally designated l5, said unit being shown in the about which is wound some suitable resistance material such as nichrome ribbon, only a few turns of which have been illustrated, as at IS. The heating unit I 5 is preferably covered by a sheet or cover I‘I, which may also be composed of - “Transite”, said cover being of substantially less thickness than the block I4, and primarily serv ing to protect the heating unit I5 against injury or damage. The heating unit I5 is provided with suitable electrical conductors or leads I8, which extend to the outside of the head ‘I so that the same may be conveniently connected with a suitable electrical power source or outlet (not shown), as which the respective spring ends are inserted. will be obvious. For the purpose of regulating ., the temperature of the heating unit, and conse quently of the head ‘I, we preferably provide a thermostat unit which may be of any desired type, and which is more or less diagrammatically illustrated at I9. The thermostat is preferably of an adjustable type, and 20 designates a control shaft which extends through the top of the head ‘i and is provided at its outer end with a control knob or handle 2| and pointer 22, the pointer coacting with suitable indicia 23 on the top face of the head, which indicia serves to indicate the range of temperature settings. The temperature range may be varied as desired but for practical purposes, we preferably provide an adjustment from 75 to 600 degrees Fahrenheit, which we have 60 found to be satisfactory for virtually all conditions which would be commonly encountered in The springs are so tensioned as to normally urge marking leather or the like. formed in the rear wall of the base. Extending through the bearing lugs 2, 2, is a shaft or hinge pin 6, and upon this shaft is mounted the movable head of the press, which is generally designated ‘I. The head ‘I is provided on its rear edge with a pair of laterally spaced ears or lugs 8, 8, which are suitably apertured to receive the shaft 6 and to which the same are ?xedly secured, as by means of the pins or dowels 9, 9. Encircling the shaft 6 adjacent the members 8, are a pair of coil springs l0, I0, each having one end anchored to the base I, as at II, II, and the other end an chored to the head ‘I, as at I2, l2, the anchors being shown in the form of apertured lugs through the head ‘I towards the open position illustrated 65 in Figure 4, wherein the head is shown swung upwardly to a substantially vertical position. If desired, a suitable stop may be provided to limit the opening movement of the head so that it cannot inadvertently be moved beyond the ‘open 70 position shown in Figure 4. For practical pur poses, the springs are of such strength that when the head ‘I is in its open position, it can be closed by a relatively light pull forwardly and down wardly, say on the order of one pound pull. Of 76 course, this may be varied, as desired, depending , The head ‘I is provided at its forward edge with a handle 24, which is preferably of such 65 length as to enable the same to be grasped by one or both hands when it is desired to manip ulate the head in opening and closing the same, and the handle also is preferably of such a con struction as will not become unduly heated and 70 burn the operator’s hands. For this purpose, the handle may be provided with a rubber or com position grip, although other types of insulated or heat-resisting handles may be employed if pre ferred, ' 75 4 2,130,188, However, when the head approaches the end of its ' will be similar parts for ladies’, young men’s, closing movement, the tail 56 of the pawl strikes misses’ and children’s shoes, of correspondingly the abutment 60 which is adjustably mounted, by ‘ smaller dimensions. Moreover, each class of shoe means of the bolt BI and vertically elongated slot part, whether they be parts for men’s, ladies’, 62, on the'base l. Upon engagement of the tail of young men’s, misses’ or children’s shoes, will have the pawl with this abutment 60, a slight continued different sizes, according to the particular foot movement ofthe head towards its closed position size. We have therefore provided an adjustment will cause the pawl to be shifted longitudinally on of the guide pattern 64 which may be effected in the pivot 54, thereby causingthe ratchet wheel 5| a very simple manner, to accommodate the shoe ' to be rotated for a partial revolution, as will be ob vious. Before the head reaches its fully closed position, the toothed end 55 of, the pawl 52 moves upwardly far enough so as to become disengaged from the teeth of the ratchet wheel 5|-. Conse parts in the various classi?cations, and the various 10 sizes over the normal range for each classifica tion. This adjustment is in the nature of a shift able mounting for the guide pattern 64, by means of which the guide pattern may be bodily moved quently, during the last part of the movement of ‘the head towards its closed position, there is no rotative motion applied to the spool ‘44, and this is very important because if the rotation of the spool were continued until the very end of the closing movement of the head, the strip “would very rearwardly or forwardly on the bed of the press or marking machine. 61 designates a screw shaft likely be torn in two or otherwise damaged so as to be rendered un?t forfurther use. As seen best wall 10 of the base. Secured to the upper ex tremities of each arm 69, as by screws ‘H, is a plate or block 12, which is recessed in an elon gated recess 13 in the upper face of the wall 10. Each plate or block 12 is provided with one or in Figures 3 and 4,'the strip extends from spool 35 which extends through the base I from front to back, and mounted on said screw shaft is 'a yoke 68, the opposite arms 69, 69 of which extend verti cally upwardly through elongated slots in the top 2 under and across the lower side of the head 1, and hence across the relief face of the die 25, to the spool 44, upon which latter spool the strip is ' more vertically disposed studs or pins 14, which wound, the feeding of the strip being produced by the'intermittent rotation imparted to the spool 44 project upwardly slightly above the wall 10, and near the end of each closing stroke of the head. 30 When the head is opened, the pawl 52 moves away from the abutment 60, and the spring 5'! causes the pawl to automatically shift on the pivot to its are adapted to be received in suitable openings provided therefor adjacent the opposite ends of the guide pattern 64. The screw shaft 61 is extended forwardly through the front wall 15 of the base I, and position previously mentioned as the normal posi tion, preparatory to the producing of the next ro-. tative step of the spool 44 when the head is again mounted on the outer end of the shaft is a knob 15, by means of which the screw shaft may be closed. ' It will be noted, particularly in Figure 3,'that the opposite ends of the head are recessed slightly, as at 63, where the strip 34 extends thereacross, and by reason of this arrangement,v there is no danger of the strip being pinched between the head and base of the press when the head is closed. Moreover, the braking action imparted to the spools 35 and 44 serves to always maintain the r strip 34 taut, and hence perfectly ?at against the operative face of the die 25. The purpose of the vertical adjustment of the abutment 60 is to af ford an adjustment of the ratchet wheel actuating stroke of the pawl 52 so that the intermittent feed C.-- C; , of the strip across the underside of the head can be varied to a more or less degree, asdesired. Passing now to the details of construction of the base I, and referring particularly to Figures 2, 3 and 4, there is provided a guide pattern 64, 5543 which may be made of hard ?ber or other suit able material, and upon which are arranged a series of studs 65, or the like, which de?ne the proper position in which the work pieces should be placed so that the marks to be produced there CO on will fall at their proper locations upon closing the head 1 vdown upon the work-pieces. In Figure 4, we have shown a typical shoe part, designated 66, placed upon the base or bed of the machine ac cording to the position de?ned by the studs or posts 65 of the guide pattern 64. Of course, it should be understood that the arrangement of the posts or studs 65 will vary according to the type and shape of the‘ workpieces which are to be marked. The guide pattern 64 is preferably ad justable on the base I, inasmuch as it frequently is desired to produce the same markings or designs upon the same type of workpieces, but which are of different sizes. For instance, the particular shoe part designated 66 in Figure 4 may be con sidered as a typical part for menfs shoes, and there rotatably manipulated. The shaft is provided 1 adjacent its outer end with an elongated slot 371, and a pin 18 extends transversely through the knob and slot 11. The front face of the knob 16 is recessed, as at 19, and a screw 80 is mounted in said recess, and is threadedly con 40 nccted with the outer end of the shaft 61. Within the recess 19 andencircling the screw 80 is a coil spring 8i, having one end bearing against the base of the recess 19, and its opposite end bearing against the inner face of the head of the screw 8, thereby normally urging the knob to wards the front wall 15 of the base, or in other words, urging the pin towards the inner end of the elongated slot 11. The knob 16 carries a pointer 82, and the pointer is provided with a ,, rearwardly projecting pin 83, which is adapted to be received in any of the various apertures 84 arranged in an arc adjacent to the knob, in the front face of the wall 15. There is preferably one aperture 84 for each setting of the guide pattern 64, and the pin 83 constitutes, with the knob 16, a releasable detent which serves to lock the guide pattern 64 in its adjusted position. Suitable indicia, generally designated 85, is pro vided on the front wall 15 of the base I, and said ‘ indicia is preferably arranged in graduated scales corresponding to the different classes of shoes, that is, men’s, ladies’, young men’s, misses’ and children’s shoes, the graduations denoting the foot size in each class. The shifting of the guide pattern 64, responsive to rotation of the screw shaft 61, is preferably such that the movement of the guide pattern is in a forward direction as the sizes of the shoe parts progressively de crease. In other words, the extreme rearward " position of the guide pattern 64 is preferably the position for the largest shoe size, that is, the largest foot size of the men's type shoes. As viewed in Figure 7, rotation of the pointer 82 in a counter-clockwise direction will produce a for 2,130,188 ward shifting movement of the guide pattern 64, and ‘this holds true for each of the various classi ?cations represented on the different scales. It will be noted that the foot sizes, designated numerically on the scales progressively decrease in a counter-clockwise direction on each scale. When the desired adjustment of the position of the guide pattern 64 has been eifected through the ‘manipulation of the knob 16, the adjust ,ment ~will not inadvertently or accidentally change by reason of the interlocking action of the detent pin 83'. Operation In the‘ manufacture of shoes, gloves, and the like, it is customary to ?rst cut out the pieces of leather, or Whatever the material may be, to the desired size and shape, according to the re quirements of the article, after which these 20 pieces, which for convenience we have vtermed workpieces, are marked to indicate the extent of overlap which is to be made with a con tiguous component part. Also, the outlines for ornamental stitching' and the like are similarly marked. By our improved construction, we are likewise able to emboss, impress, or otherwise suitably mark the workpieces with various de signs, which may be in the form of ornamental designs; and/or merely the name or trade-mark 530 »of the'manufacturer, the shoe size, pattern num ber, etc. In Figures 4 and 5, we have illustrated a typi cal ‘shoe part, designated 66, which has been marked as a typical example of ornamentation, :5. and it will be readily understood that such marks maybe varied as desired, not only for ornamental purposes, but for the purposes of producing guide lines to facilitate the assemblage of the shoe parts, and to serve as guides for the stitching by which the shoe parts are joined together, or 40 other stitching which is frequently employed for ornamental purposes. In producing the particu lar design illustrated, the marking die 25, having thedesign 2'! formed thereon in relief, is mounted ‘on the head by inserting the rear edge of the die in the groove or channel 28, and then rotat ing the shaft 29, by means of the knob 3|, to bring the shoulder 30 underneath the forward edge of the die, whereby to ?rmly support the same against the lower side of the head. Upon rotation of the shaft 29 to the die supporting ‘position, the shaft is locked against inadvertent or accidental release of the die by tightening the set screw 32 through means of the knob 33. Having selected the workpiece locating die or guide pattern 64, corresponding to the particular workpiece 66, which is to be marked, the same is ‘placed upon the base I with the pins 14 re ceived in the openings provided therefor in the locator or guide pattern '64. The position of this CO locator or guide pattern may be adjusted from front to back, according to the type and foot size of- the shoe part which is to be'marked, such adjustment being effected by rotating the knob 16 to bring the pointer 82 into register with the corresponding calibration of the indicia 85. In performing this adjustment, the knob 16 is initially pulled forwardly against the action of the spring 8|, thereby withdrawing the detent 83» so- that the knob and screw shaft 61 are free to‘ be“ rotated, and when the desired setting is attained, the knob is released and the detent 83 is ‘urged, into the aperture 84 which corresponds 7:' 5 . vertently or accidentally displaced. It will be understood that the rotation of the screw shaft vt‘I-"ei’fect‘s a-movement of the yoke 88 forwardly @or rearwardly, according to the direction in which’ the shaft 61 is rotated, thereby corre spondingly's'hifting the pins 14 which are inter engaged' with the locator ‘64. Now there ‘may ‘be occasions when it is desired ‘to mark the ‘workpieces simply by forming de pressions therein, in which event the carbon 10 paper 341, or equivalent color medium carrying strip, maybe omitted, as by removing the rolls or spools-'35 and 44. When so omitted, the work pieces 661 are successively placed upon the locator die or guide pattern 64 so as to lie in the posi 15 ~tion de?ned ‘by the studs'65 or other workpiecev locating instrumentalities, and the head ‘i pulled rdownlto its closed position, bringing the relief pattern 21' of the die‘25 directly into engagement with the workpiece. The downward pressure ex erte'dilupon the ‘head in closing the same causes ‘the relief " pattern 21- to-be impressed in the work ipiece 66, and thus produces markings on the workpiece in the nature of impressions or inden tations, corresponding to the con?guration of the 25 a'eliet pattern of the die '25. This type of mark iing is suitable for certain kinds of workpieces, and even though the press is unheated. How ever, we have found that by heating the die 25, ‘the marking of vithe workpieces is greatly facili tated, particularly in that the markings will be come more ‘pronounced and more discernible. Therefore, where it is desired that the mark ings be‘ pronounced and readily discernible, the heating unit I5 is energized, and the die 25 lbrought'to the temperature which is most suit able for ‘the performance of the marking opera tions, according ‘to the particular nature of the material being- mar-ked. In the case of leathers, some vleather-s are of a tougher texture than others, ~and hence the temperature, should be ad 'J'u‘st'ed, by- means of the thermostat control 2!, to a relatively high degree. The various tempera tures required under various conditions of op eration may be readily determined with a little experience in the use of the-apparatus. Where 45 the‘ markings are to- be produced with the aid of heat‘, the heating unit I5 is preferably ener gized ‘before'ithe apparatus is to be put into use, so as to give su?icient time for the die 25 to attain the proper- temperature. The arrange 50 ment and construction of the head 1, as dis—. closedh'erein, has been found to be very e?icient, and ‘the ‘heat is- conserved and utilized to great advantage, making the cost of operation prac tically negligible. Moreover, the temperature may- be very quicklyv brought up to the desired degree, and the ribbed construction of the top face of~1the head‘ 1 keeps-the exposed surface reasonably cool, thereby materially contributing to the convenience and comfort of the operator. (a) It will, of course, be understood that instead of mar-king only one workpiece at a time, several ‘workpieces of the same ‘or different shapes and types, or a complete set of parts of a shoe, glove, or other type of unit, may be marked at the 65 same time, the die 25 and the locator or guide pattern 64 being modi?ed accordingly. Quite frequently, it is preferable to mark the workpieces in colors, and where this is desired, 1 we employ the ?exible strip or sheet 34 of carbon 70 paper, inked ribbon, or some other suitable type to-this particularsetting, thereby preventing the of ‘color carrying member. We might mention right here that the term “carbon paper” is used locator or guide pattern 64 from being inad in‘ a broad sense, and is intended to embrace any 75 : 2,130,188 strip or sheet of material which carries some coloring medium. Moreover, the color may be any color, and is not limited to merely black or blue, which are the more widely known colors of carbon paper. White, pink, orange, gold, and many other colors, may be employed as desired, and the particular color or colorsyselected are followed in‘stitching the workpiece. The small circles of the design 21' represent imitation per forations, and their prominence is greatly en hanced by the combination of the coloring and embossing of the design, as with the aid of the carbon or copying strip 34. Figure 6 shows still another form of workpiece 66', such workpiece having the form of an insole or the like, and the design 21" thereon is typical preferably varied according to the color of the material of the workpieces, and according to the desired degree of prominence of the markings. In the use of the strip 34, the rolls 35 and 44 of the application of a manufacturer's name to 10 such'part. Inasmuch as such a design should be are mounted on their supporting axles or pins at applied in as permanent a manner as is practical, the respectively opposite ends of the head ‘I, the combination embossing and coloring opera tion, as may be performed with our improved marking apparatus, can be employed to great 15. advantage. The impression of the design 21", and the ?xing of the color is greatly facilitated contact serves to maintain a uniform tension on through the effect of the heat in the manner pre the strip 34 as it is intermittently fed, step by viously described. It will be readily understood 20 step, from the roller 35 to‘ the roller 44, the . from reference to Figure 6 that our improved portion of the strip intermediate the rollers ex marking apparatus is also equally adapted to the and the tension of the springs 39 and 41 is so adjusted, by means of the set screws 4| and 49, as to produce a substantial frictional contact be tween the spools and the axles. This frictional tending across the lower face or relief side of the marking of bat bands, glove parts, and other die 25, and closely adjacent thereto. workpieces of a similar character, which are more When the strip 34 is so mounted on the head, the closing of the head results in the transfer of color from the strip 34 to the workpiece 68, according to the relief design of the die 25, it being understood that the strip 34 is interposed between the die 25 and the workpiece 66. In other words, the transfer of color to the workpiece occurs only at those points where the strip 34 is pressed against the workpiece by the relief pattern 21 of the die 25. The resulting marks on the workpiece will accordingly be clean-cut and uniform, and 35 blurring or smudging is eliminated, or at least, reduced to a negligible amount. If only a light pressure is applied to the head upon closing the same, the transfer of color from the strip 34 to the workpiece can be effected in the nature of a ~10 purely printing operation, and without the pro duction of any material impressions in the work pieces. Such use is best suited where the mark ings on the workpieces are to be subsequently removed, and by the proper selection of the color~ ing medium, virtually all traces of the mark ings can be removed if such is desired. However, the permanency of the markings can be greatly increased by the impressing or embossing action of the die 25 on the workpieces, simultaneously with the transfer of the coloring medium from the strip 34 to the workpieces. Moreover, We have found that the colors may be more or less permanently ?xed by the variation in the degree of heat applied to the die 25; that is to say, the higher the temperature of the die, the more per manent the colored markings are ?xed in the work pieces, and the lower the temperature of the die, the less permanent the colored markings are ?xed. (10 Acccordingly, if the markings produced on the workpieces are to be in the nature of permanent ornamental designs, or devices or characters designating the source and character of the workpieces, such markings are preferably produced with the aid of a comparatively high degree of heat. In Figure 5, the lines of the design 21’ on the workpiece 66 may be considered as guide mark ings for ornamental stitching, and these lines .70 75, may be produced either in the form of colored marks, with or without the formation of corre sponding depressions or grooves in the work piece, as desired. However, when the lines are depressed as Well as colored, they stand out prominently and can be more readily discerned. Moreover, a depressed line may be more easily nearly of the con?guration of the particular workpiece illustrated in this view. 25 Where the workpieces are of considerable length, we have found that the same may be readily accommodated in our marking appara tus or press by inclining the forward portion of the bed or base, downwardly, as at 86, so as to 30 leave a space between the same and the lower front edge 8'! of the head 1, as best seen in Fig ure 2. With such an arrangement, space is af forded for the ends 66” of an elongated work piece, and without interfering with the marking 35 operations upon the portion of the workpiece which is disposed between the die 25 and the bed of the press. It will be understood that after each closing operation of the head, resulting in the marking 40 of the workpiece or workpieces, the head is swung ‘ open to the position illustrated in Figure 4, to enable the marked workpiece or workpieces to be removed and be replaced by a new workpiece or set of workpieces, the marking of which will be performed by the next closing operation of the head. The springs l0 normally urge the head towards its open position, and the tension of the springs is preferably such that only a com paratively little effort is required to close the 50 head. It will be readily apparent that the press is simple in construction, may be quickly and easily operated, and requires very little atten tion on the part of the operator. As. previously mentioned, the hinge brackets 55 2, 2 which are mounted on the base I by means of the bolts 3, 3, are vertically adjustable by reason of. the elongated slots 4, 4. Such adjust ment permits the use of dies 25 of various thick ness, and similarly, variation in the thickness of different workpieces can be accommodated. It is important that the die 25 be approximately parallel to the surface of the workpiece which is to be marked when the head ‘I is closed and the die is brought into its marking position. 65 By intermittently or progressively feeding the strip 34 over the operative face of the die 25, a substantially fresh surface of the strip is main tained over the relief at all times, so that the color medium which is transferred from the strip to the workpiece will always be substantially uni form and distinct. As the strip is wound from one roll onto the other, the rolls may be inter changed and the same strip. consequently used several times, as will be obvious. w The term “marking die” is used herein in its 55. A device‘of thei classdescribed, comprising broad sense,v and is intended. to cover adie for a base member and’a head member hingedly con nected‘ together ‘at one edge, a marking die marking by producing impressions in the work pieces, or by printing upon the workpieces with out producing any substantial depressionsfor-by mounted'acrossthe lower side of said'head mem-' ber, a flexible‘ strip carrying a coloring medium combinations of both. While the speci?c details of construction have ling die, means for intermittently feeding said beenherein shown and described; the inventionris not con?ned thereto, as changes and alterations 10 may be made without departing from the spirit thereof as de?ned by the appended claims. Having thus described our invention, what we claim is new and desire to procure by Letters Patent is-— l. A device of the class described, comprising a 15 base member, a head member movable towards and away from said base member, a marking die carried by one of said members, a workpiece extended across the voperative-face of saidimark strip across said marking die incident to relative closing movement-of said- head ‘member respect ing said base'm-ember, said? lastlnamed-meanslin said head member at opposite sides thereof, and about which said strip is wound, a ratchet wheel coacting with one of said roller members so as to rotate the same incident to rotation of the 15 ratchet wheel, a pawl pivotally mounted on said locating die adjustably mounted on the other head and coacting with said ratchet wheel, said pawl being longitudinally shiftable on its. pivotal mounting, spring means interconnecting said 20 member, and means for adjusting said workpiece locating die, said last named means including a screw shaft, and a yoke member threadedly en mally rock the pawl on its pivot towards engage ment with the ratchet wheel, and also serving to gaged with said screw shaft and having oppo sitely extending arms, each arm being provided 25 with means interengaging the work piece locating die adjacent one end thereof. 2. A device of the class described, comprising a base member, a head member movable towards and away from said base member, a marking die carried by one of said members, a workpiece locating die adjustably mounted on the other member, means for adjusting said workpiece locating die, said last named means including a screw shaft, a yoke member threadedly engaged 35 with said screw shaft and having oppositely ex tending arms, each arm being provided with means interengaging the workpiece locating die adjacent one end thereof, detent means for re leasably locking said screw shaft, said detent 40 means including a knob mounted on said screw shaft so as to permit shifting of the same axially while being prevented from rotating relatively to said shaft, a pin mounted upon said knob and adapted to be received in various recesses ar ranged adjacent to said knob, there being one recess for each position of adjustment of the workpiece locating die, and means for yieldably urging said knob in one direction on said screw shaft whereby to normally urge the pin into a cooperating recess. 3. A device of the class described, comprising a base member and a head member hingedly con nected together at one edge, a marking die, said marking die having the form of a plate provided with a relief on one face thereof, means for releasably mounting said marking die on said head member, said last named means including a shaft rotatably mounted in said head member and having an abutment shoulder for engaging the die plate along one marginal edge, and said head having a recess therein for receiving the opposite edge of said die plate. 4. A device of the class described, comprising a base member and a head member hingedly con nected together at one edge, a marking die, said marking die having the form of a plate provided with a relief on one face thereof, means for re leasably mounting said marking die on said head member, said last named means including a shaft rotatably mounted in said head member and having an abutment shoulder for engaging the die plate along one marginal edge, said head having a recess therein for receiving the opposite edge of said die plate, and means forlocking said shaft 75 against rotation. 10 cluding a pair of rollers rotatably mounted on pawl and said head in such manner as to nor 20 normally shift the pawl longitudinally in one direction, and abutment means mounted upon said base member and engageable by said pawl 25 near the end of the closing movement of the head, whereby to shift the pawl longitudinally in the opposite direction and impart a rotation to the ratchet wheel for a fractional part of one turn. 30 6. A device of the class described, comp-rising a base member and a head member hingedly con nected together at one edge, a marking die mount-ed across the lower side of said head mem ber, a ?exible strip carrying a coloring medium extended across the operative face of said mark ing die, means for intermittently feeding said strip across said marking die incident to relative closing movement of said head member respect ing said base member, means for maintaining a substantially uniform tension in said strip dur~ ing the strip» feeding movement, said means in cluding a pair of rollers mounted upon said head at opposite sides thereof, and upon which said strip is wound, a plurality of stub axles, one for 45 each end of each roller, one of said axles for each roller being axially shiftable, and each axle hav ing a tapered end adapted to be received in an aperture in the end of the roller, and means for yieldably urging each of the axially shifta'ble axles 50 towards its roller whereby to produce a ?rm fric tional engagement between the tapered end of the axle and the roller. '7. A device of the class described, comprising a base member and a head member hingedly con nected together at one edge, a marking die mounted across the lower side of said head mem ber, a ?exible strip carrying a coloring medium extended across the operative face of said mark ing die, means for intermittently feeding said (7-5) strip across said marking die incident to rela— tive closing movement of said head member re specting said base member, means for maintain ing a substantially uniform tension in said strip during the strip feeding movement, said means including a pair of rollers mounted upon said head at opposite sides thereof, and upon which said strip is wound, a plurality of stub axles, one for each end of each roller, one of said axles for each roller being axially shiftable, and each axle‘ ' having a tapered end adapted to be received in an aperture in the end of the roller, means for yieldably urging each of the axially shiftable axles towards its roller whereby to produce a ?rm fric tional engagement between the tapered end of '8 1,130,188 the axle and the roller, and means for adjusting said 'last named yieldable means. 8. A device of the class described, comprising a base membert a pair of spaced bearing lugs having vertically elongated slots therein, fasten ing means extending through said slots for se curing said bearing lugs to one side of said base member, a head member associated with said base member and provided with a pair of spaced in bearing lugs at one side thereof, a hinge pin pass ing through each of the bearing lugs aforesaid for hingedly connecting said head member and base member together along one edge, and a marking die carried by one of said members, the vertically elongated slots in the ?rst mentioned bearing lugs permitting vertical adjustment of the head member respecting the base member to accom modate marking dies of various thicknesses. SAUL KAUFFMAN. GEORGE G. DOSS.