US1922135A - Stitch marking device - Google Patents

Description

1933- J. E. LARSSON STITCH MARKING DEVICE Filed Jan. 22, 1931 Patented Augs15, i933 1 7 p a g V.

UNITED ASTATES PATENT OFFICE i s'rrrcn MARKING nnvlon Johan E. Larsson, Copenhagen, Denmark, as-

signor to United Shoe Machinery Corporation, Paterson, N. J., a Corporation of New Jersey f H j f Application January 22,1931, Serial No. 510,582,

r and in Denmark Februaryl, 1930- 9 claims. (01. 101-1523 This invention relates to stitch marking deduce a dotted line upon the work, and the sides ,vices and is herein illustrated as embodied in a of which are roughened orcorrugated to help in device for mark g a guide line on ashoe upper holding thestrip in the device. These and other blank; features of the invention are more fully discussed 5 For the purpose of ornamentation, many kinds in the following specification taken in connec- 5 be either inconspicuous orv invisible in the comstrip; and:

of leather work and especially womens shoes are tion with the accompanying drawing in whichcommonly decorated by fancy stitching or by Fig. 1 is a planviewof a marking device conrows of 'small perforations applied along lines structed inaccordance with my inventiony having a predetermined configuration so as to Fig." 2 is a fragmentary section on a larger producea fancy design. It has long been 'recogscale through said device and one of the marking 65 nized that such ornamental designs can o'nlybe Str p i i satisfactorily produced upon pieces of work by Fig." 3 is a side elevation of the marking strip providing the work blanks with guideflineswhich emp y v a. can be followed by thekoperative but which will Fi 4 is an n ar d p p v vi w f the i i l t i i i i Q pleted work. For the production of a good grade Fi 5 1s a vlew of a plece of'work Which has of work it is important thatthe guide linesfshall been m d y my device. l i be accurately located upon the pieces of work My ar i d v pr s a p e 10 f p and in the case of shoe upper blanks this ea sheet material which is provided with a plurality that they must be difierently located for every ofslots 12 which are substantially filled by means 5 size of blank and reversed in position for rights Qf eta trips 14 held frictionally therein and X- and left's. Variousmachines and devices have D'Osed'at touand bOttOm- Conveniently the P st been provided for this work which however, are 0 may be made of d fi of p n oa d frequently expensive and the dies ormarkers for and p d like the p w v ployed in which can not readily be produced in c a, hoe cutting out a shoe upper blank. This material is .factory. v relatively inexpensive and at the same time is Accordingly, an'important object of the pressuflicientlydurableto' withstand a considerable ent invention is to provide a simple and inexa ou f a e W t u a e It also is pensive stitch marking device which will prosoft enough to e a y worked.

Q duce a good grade of work with aminimum of Patterns of this material are quicklyand in- 5 skill on the part of the operative and which, if V expensiv ely constructed bylineans' of a'machine desired, may readily be manufactured by the (not showniknown as the pattern grading mashoemaker, a chine which duplicates pieces by means of a pan- 7 Theillustrated device utilizes a slotted sheet 0graph ce0n tr c i0n and cuts the outline defor supporting in position one or more metal s ed 'by a Small reciprocating 0 moved Di 9O strips with serrated edges and which are set oh s s v y a o the wo k a d min a series edge in the slots of the sheet to project both above of. overlappin perforations- S1108 factories f and below the sheet so'that pressure applied to substantial size are usuallyequipped with these the edges of the strips on one side of the sheet machines and the same machine can be employed 4D will cause the other edges to be impressed in the for both cutting out the pattern-shaped piece ac- 95 work. This arrangement makes thedevice inexcording to the desired outline and also for propensive, as will later be pointed out, and also viding slots 12 in the piece to receive the marking facilitates the pressing of the various strips unistrips 14. These slots are formed with the same formly into the work. This novel arrangement facility that the outline of the piece is out and v also makes the device reversible so that it is only require that the operator of the grading i00 suitable for use on either a right or aleft shoe. machine shall follow the design provided upon a Preferably, and as shown, the device is shaped master pattern- By m an f j tmen proto conform to the outline of the part upon which vided on the grading machine the location of it is to be used, thus facilitating the accurate these slots may be automatically varied with pat- Q location of the device on the work. tern pieces of different sizes thus requiring a Other features of the invention relate to a minimum of skill and expense.

novel form of marking'strip which can be pro- It will: be understoodythat in the use of the duced cheaply to provide a strip which, as illusdevice the pattern-shaped piece 10 is laid upon trated, has wedge-shaped edges which are a piece of work 20 having the same outline with 65 notched at regular intervals so as thereby to prothe edge of the piece 10 in register with the edge T of the work. Pressure is then applied by means of any suitable press which will be transmitted height-wise of the metal strips to force their lower edges into the work thereby to produce in dotted lines 22, 24 the design along which-the shoe upper blank 2O is to be ornamented; This. mode of op eration, providedthat the metal strips 14 are of uniform width, or height as they are located in the completed device, insures a uniformity-of pressure upon the work to the end that the design will be perfectly reproduced thereon and so readily visible that the operator of a sewing machine or a perforating machine; can follow.

the outline of the marks 22- and 24 withgreatease. Quite obviously no strain is imparted to the sheet 10 and said sheet serves merely to' support the strips 14 in upright position along the lines. of the desired design. a It also serves to locate. the stitch marking device upon the work. Being light and easily handled, the marking operation can be carried out. accurately with considerable speed and the same device employed for both rights and lefts. V Whi1e theexact form'of the marking strip 14 may be varied within wide limits without depart- I ing from the invention, I have found that astrip of a construction to be described, produces particularly'good results-and is easily manufactured. This strip, as shown in side elevation ,in Fig. 3 and enlarged perspective in Fig. 4, is a substantially flat brass strip themargins 26 of which are wedge shaped and slightly rounded at the edges so asv not tocut the leather. The wedge-shaped edges of the strip are serrated by reason of a succession of notches 28 so asv thereby to reduce the necessary pressure with which the device is applied to the work and toavoid damagingthe leather by reason of a continuous crease. Preferably and as shown,,t he side faces of the strip are provided with a series of corrugations or slight depressions 30, thereby improving the frictional grip between the strip and the sheet 10.

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

pression made on the piece of work.

2. An unmounted reversible stitch marking device comprising a sheet of material supporting a marking strip which is curved to follow the configuration of the design to be marked and is exposed on opposite sides of the sheet of material, thereby providing reversed marking edges enabling the device to be placed either side up on a piece of work.

3. An unmounted reversible stitch marking device comprising a sheet of material provided with an "integral marking Zimember extending through ,saidsheet of material and exposed on opposite sides thereof along a line forming the configuration of the design to be marked whereby one edge of the marking member may be ap plied tothe work and pressure applied to the other edge to. impress the design in the work.

4. A reversible stitch marking device comprisinga' sheet of material provided with a slot following the configuration of the design to be marked, and a marking bla'de held frictionally in said slot, the width of said blade being greater than the thickness of the slotted material.

5.. A reversible stitch marking device comprising a pattern-shaped piece of material the outline of which corresponds to either a'rightor lefthand shoe part depending upon its position upon the work, said pattern-shaped piece being provided with a slot following the configura tion of the design to be marked, and a thin edged mark- '105 ing blade held frictionally in said slot, the width of said blade beingxgreater than the'thickness of the pattern-shaped piece.

' 6. A reversible stitch marking device compris- W ing a piece of pattern board shaped like pieces of work to be marked and reversible for either right or left shoes, said pattern board being provided with anarrow slot following the configuration of a design to be marked" on the shoe part, and a marking blade frictionally held in saidslot following theconfigurationthereof, said blade being wider than the pattern board is thick and projecting above and belowsaid' board and being provided with exposedserrated'edges, to the'end that said marking device may be used either side up to impress a dotted line upon a piece of Work.

'7. A strip of metal fora marking device having its opposite edges wedge-shaped and provided with a series of notches.

8. A strip of metal fora marking device having a corrugated side and a notched edge.

9. A strip of metal for a marking device having a roughened side and a wedge-shaped edge provided with a series of notches.

- JOHAN E. LARSSON.

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