US1035333A - Snipping-machine for shoe-tops. - Google Patents

Description

R: L. FELIX. SHIPPING MAGHINEYFOB. SHOE TOPS. APPLIGATION FILED NOV. 21, 1910.

1,035,333, Patented Aug. 13,1912.

5 SHEETSSHEET 1.

R, L FELIX SHIPPING momma FOR SHOE TOPS.

APPLICATION FILED, NOV. 21, 1910. 1,Q35,333, Patented Aug. 13, 1912.

5 SHEETS-SHEET 2.

R. L. FELIX. SNIPPING MACHINE FOR SHOE TOPS. APPLIUATION FILED NOV. 21, 1910.

5 SHEETSS -ET 54 E- ED 3 Ag as;

awn OM21,

Patented Aug. 13, 1912.

R. L. FELIX. SHIPPING MACHINE FOR SHOE TOPS. APPLICATION FILED NOV,21,191O1 5 SHEETSSHEET 4.

attowm,

Patented Aug. 13, 1912.

R. L. FELIX. SHIPPING MACHINE POE SHOE TOPS. APPLICATION FILED NOV. 21, 1910.

Patented Aug. 13, 1912.

5 SHEETS-SHEET 5.

' Jlig j screens L. FELIX, or MARLBORO, ivrnssscn'usnrrs.

SNIPPING-MACHINE FOR SHOE TOPS.

Specification of Letters fatent.

Application filed November 21, 1910. Serial No. 593,487.

To all whom 2'25 may concern Be it known that LROBE'RT L. FELIX, a

citizen, of the. United States, residing at Marlborqin the county of Middlesex and State of Massachusetts, have invented new and useful Improvements in Snipping-Machines-for Shoe-Tops, of which the following is a specification.

This invention relates to shoe making machinery, and has to do more particularly with a machine for snipping the front edges v of shoe tops so that such edges can he turned back in an even fold, irrespective of the contour of such edges.

The invention has for one of its obje:

to improve and simplify the construction and operation of shoe machinery of this character so as to be comparatively simple and inexpensive to manufacture, reliable and efficient in use, and so designed that shoe tdps 'can be cut or snipped and trimmed with absolute precision, so that loss of stock may be reduced to a minimum and less hands will be required for preparing shoe tops for the va-mper, who applies and stitches the i cops to the vamps.

j Another object of the invention is the pro vision of novel snipping or cutting knives whichcan be readily adjusted for edges of difierent curvat ures.

A further object is the employment of a no'vei worksupporting table and means for "operating the cutter.

With these objects in View and others, as will-appear as the description proceeds, the invention comprises the various novel features of construction and arrangement of parts which will be more fully described.

Figs. Fig. 5 is a sectional view the work table "taken on the line 5-5, Fig. 2.

Fig. 6 is .a perspective view of the yielding work sup'port of the work table. Fig. 7 is a bottom plan view of one form of cutter or blade holder. Figs. 8, 9 and 10 are perspective views of different forms of cutters. Fig. 11 is a bottom plan view of the shipping cutter. I Fig. 12 is a side viewthereof. Fig. 13 is a transverse section-online 1313, Fig. 12. 14 is a plan view of the. work table used in connection with the "cutter shown in Fig 11. Figs. 1-5 to 20 are different views illustrating-the successive steps in the preparation of the top for the vamp ofashoe.

Similar reference characters are employed to designate corresponding parts throughout the views. T

Before entering into a description of the machine, the work done thereby will first be explained, reference being had to Figs. 15 to 20, inclusive. a designatesa shoe top in "its first stage, as when it leaves the cut-' ting machine. The edge, at b, is next skived along the inner surface; as shown in Fig.

16, and then follows the 'snipping of the skived edge at the concave portion a and "'at the corner or convex portion d. At the portion" '0', a plurality 'ofslits are made'by parallel knives, whereas the snipping at the corner d.

is in the form of scallops." The skived and snipped edge 6 is next turned baokwardly and glueddown as shown in Fig. 17, the snipped portions of the edge permitting the leather to be turned back in an even -smooth fold. The lining e and facing strip f are now applied to the top and stitched as shown in Fig. 18. The next step consists trim? ming the bottom edge of the upper and "facing strip, at g, by means of'a'T-shapedcutter which produces the horizontalstraight edge It and the ertical slot 2'. The'trimnied: top is now read to receive tliec'yelet's and Patented Ailg. 13,1912

lacing studs y' and k, as shown in Fig.

chine, where the vamp 1, Fig. 20, is applied,

The top is now takenl to the vamping mathe top, while the portion of the top between the slit '5 and front-edge lies on the outside of the vamp. The two parts are stitched together while held iiithis posi{ tion.' The present machine is designed fori snippingthe edge of the top" at the' slits '0 and scallops d and for makin -sh'aped cuts and trimming the bottom; frontcorner of the top at 9', different knives being, of

course, necessary to perform th'esc several operations; o; my

- The machine comprises a franie A having upper and lower laterally-"extending arms 1 and 2 that support, respectively, the cutter bar 3 and work table 1. The cutter bar v reciprocates vertically in a guide in front of the arm 1. Onthc upper end of this bar 3 is pivoted a yoke 5 into which extends" the forward end of an operating lever 6 that is fulcrumed at 7 on the top of the frame A. The yoke has a set screw 8 which impinges on the top of the lever 6 and holds the lever and yoke in proper relation. The lever 6 is rocked by means of an eccentric 9 on a rotating shaft that is journaled in bearings 11 on the rear portionof the frame. Surrounding this eccentric is a st-rap12 thatis adjustably connected with the lever 6.

-The connection between the strap and lever consists of a right and left hand screw 13 that has its lowerend threaded in a boss 14 in the eccentric strap and its upper end threaded in a connector 15 that is pivotally' attached to the near end of the lever by the pivot pin 16. On this screw is a knurled flange 17 whereby the screw can be conven iently turned by hand. Un the threaded portions of the screw are jam nuts 18 which are tightened after the screw is adjusted. By adjusting the connection between the eccentric and operating lever 6, the proper cutting relation between the cutter on "the lower end of the bar 3 and the work on the table 4: can be effected.

The driving shaft 10 is rotated by means of a pulley orwheel 18 which can be driven by a belt orother suitable means. This pulley is normally loose on the reduced end 19 of the shaft 10 and is adapted tobe connected with the latter by means of a clutch 20 which is controlled'by a treadle 21, Fig. 1. The clutch element 20 slides on the shaft 10 between the pulley 18 and the adjacent bearing 11, and on this element- 20 is a teeth 21 that is adapted to engage in any one of a number of recesses 22 of a disk 23 secured in the chamber of the hub 24. The clutch 20 is urged toward the wheel 18 by ineansof a spring 25 surrounding the shaft 10 and interposed between. the clutch 20 and a collar 26 on the shaft. The clutch 20 has a peripheral groove 27 in which is positioned a stud 28 with which is adapted to engage a cam lever 29 for holding the clutch open. This lever 29 is fulcrumed at- 30 on the frame of the machine and has one end connected with an adjustable rod or link 31 that extends downwardly through the bench 32 on which the machine is mounted and corn nccts with the treadle 21. This rod consists of two parts that overlap and are adjustably connected by a clamp 33. On the rod 31, and interposed betweenthe bench 32 and a collar 34 on the rod, is a spring 35 that normally holds the cam end of the lever in the groove 27-of the clutch element 20 and normally holds the rear end of the treadle raised- -When the operator presses downwardly on the rear end of the treadle, the spring 35 is compressed so' as to return the parts to normal position when the pressure of the foot is removed from the treadle. In pressing on the treadle, the rear end of the throw-out lever 29 is raised out of the groove 27 of the clutch element so as to permit the said element tr. move toward the driving wheel 18 by the expansion of the spring 25 and thereby clutch said driving wheel to the shaft 10. When the wheel is clutched to the shaft, the latter causes the eccentric to tilt the lever 6 and move the cutter into engage ment with the work on the table 4:.

The arm 2 is provided with a flat plate portion 36 to which is fastened the table 4, the same having a rectangular opening 37 directly under the cutter bar 3. Under this opening 3'? and set into a chamber 38 in the arm 2 is a yielding support 39 which has a stem 40 extending into a vertical passage 41 in the arm. passageis a spring 4C2 that yieldingly supports the support 39. The spring 42 rests on the lower end of an, adjusting screw 4-3 that is threaded in the lower end of the passage 41. The top sur face of the support 39 is provided with up standing marginal flanges 44 between which is set a die plate 45 that is fastened in place by screws 46 that have their. lower ends threaded in openings 47, Figs. 5 and 6. Differentdie plates 45 are used interchangeably, according to the shape-of the knife or cutter being employed. When a T-shaped knife, .es shown in FigsJl and 8, is being used, the die is obviously provided with a T-shaped slot or groove. and when the knives shown in Figs. 9 and 10 are used, a die having a groove corresponding to the cutting edge of each knife is applied to the yielding support TV hen the cutter shown in Fig. 11 is employed, the die -l5 and table plate 4 are removed and a plate 48, Fig. 14, is substituted for the plate 4:. the said plate 48 having a plurality of parallel slots 49, arranged on an arc of'a circle so as to receive the cutting edges 50 of the blades 51 forming the slit snipping cutter 52, Figs. 11 to 13. Fastened to the table 4 are work gages 53 and 54., Figs.

1 and 2, of any desired form so as to properly position the shoe tops on the work tabled- 1'15 4 with respect to the cutter being used.

The lower end of the cutter bar 3 formed with a socket 55, Fig. P. for receivfl ing the stem 56 of the cutters. This stem may be formed integral with the cutting blades, as shown in Figs. 9 and 8, or it can'be formed on a block 57, Figs. 1, 1 and 7. which carries removable blades 58, the said iiades being set into. slots or grooves 59 and clamped in place by set screws 60. When a curved blade 61, such as that shown in Fig.

10 is employed the groove 59 of the blade holding block 57 will be correspondingly shaped. When separate blades 58 are employed, they'cau be adjusted for producing cutsofdiiferent shapes and sizes. The cutte'r shown in Fig. 9. has a serrated cutting edge '62 and is used for the purposeof making the scallops (Z inthe shoe top, as shown in Fig. 16. The slit snipperor cutter 52, Figs. 11 and l3, produces the slits, at. 0, in

1 the shoe top, Fig. 16. As thefolded edge of the shoe top may vary in curvature, the knives 51 of this cutter 52 are adapted to be adjusted to the curvature of the shoe-top. The blades 51 are mounted ina block 63 that isiprovided with a plurality of transverselyextendlng slots 6 for receiving the inner end of the blades 51. The inner ends of the blades are wider than the lower, ends so as 'to provide shoulders 65, and engaging under these shoulders is a removable bottom plate 66 held in place by screws 67 and in ,this bottom plate are slots 68 through which blade is adjustable laterally by means of set the narrow ends of the blades depend. Each screws fi -engaging, respectively, the front and rear edges, so that by turning one screw outwardly and the other inwardly,- the blade between such screws will be shifted laterally to the front or rear. This means that the blades can be adjusted so that they will 'lie in a line of any desired curvature to suit 1 the curvature of the shoe tops to be snipped.

The screws engaging .the front edges of the blades are preferably arranged in a plate 70 that is secured in place by screws 71-, so

that by removing these screws, the plate 7 0 can be taken 6H to permit all the blades to be removed without changing the set of the screws 69, it being, of course, necessary, in removing all'the blades together,-to take. off the bottom plate 66 at the same time.

From the foregoing descrlptlon, taken in connection with the accompanying drawings, the advantages of the construction and,

of the method of operation will be readily apparent to those skilled in the art'to which the invention appertains, and while 'lhave described the principle of operationfof'the" invention, together with the apparatus which I now consider to be the best embodiment thereof, I desire to have it understood. that the apparatus shown is merely mus, j trative, and that such changesmay be made when desired as are within the scope of the claims appended hereto.

vidual blades, maintaining the blade. in the slots of the Having thus described the invention, what l I claim asnew, is

shoe snippin g and trimming ma hi comprising a supporting frame,=a work table mounted thereon, a tubular guide on the frame above the worktable, a reciprocatory element slidable vertically in the guide and having a socket at its lower end, a cutter provided with a stem fitted in the socket, a

yoke pivotally connected with the upper end of sand element, an operating lever fulcrumed on the top of the frame and having its forward end slidably engaging the upper end of the said element,,a set screw on the yoke for. engaging the upper side of the lever with the upper end of-the said element, a

driving shaft mounted on theframe, and anv adjustable driving connection between -th shaft and rear end of the lever.

2. A snipping cutter comprising a plurality of knives. disposed side by side, a holder for the knives, andmeansfor independently adjusting the knives on the holder, said means including apair of adjustable merlbers engaging oppositeedges of each kni e. i

. 3. YA snipping cutter comprising a plu-'- rality of knives disposed side by side,- a

holder forthe knives, means for independently "adjusting the knives on the holder,

justable members engaging opposite edges of the knives, and a common support removably fastened on the holder for the adjust 'ing members at one side of the blades.

-to hold the bottom side thereof in contact :said means including axially alining ad- I 4. A snipping cutter comprising a pluide for receiving the indiposed side by ,plate on the holder for rality of bladega holder having slots dis-

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