US1805478A

US1805478A - Process of making plaited leather

Info

Publication number: US1805478A
Application number: US342961A
Authority: US
Inventors: Barber Frank
Original assignee: Individual
Current assignee: Individual
Priority date: 1929-02-27
Filing date: 1929-02-27
Publication date: 1931-05-19
Anticipated expiration: 1948-05-19

Description

May 19, 1931, FQBARBER 1,805,478

SS OF MAKING PLAITED LEA e 27, 1929 ZSheets-Sheeb i May 19, 1931. F. BARBER 1,395,473

PROCESS OF MAKING PLAITED LEATHER Filed Feb. 27, 1929 2 Sheets-Sheet 2 5g INVENTOR TT'ORNEY Patented May l 9, 1931 rmx nnannn, ocmm 'somimw Yonx rsoonss or vituirzrive iLAITE-Ii LEATHER Application filed February 27, 1923. Serial No. $2,931. 7

My intention relatesparticularly to a processof plaiting leather so as to produce, plaited leather sheets suitable'for use for any desired purpose, but particularly in connection with the manufacture of shoes and'product' thereof. a 1 The object of my invention is to provide a process whereby sheets of plaited' leather frame 1 havii'ig a base 2 for supporting a 7 may be readily producedand 'at a cost within 10 ufacture of leather products, particularlyshoes. A'further object is to provide-such a process which may be carried outfexpedi: f

tiously and at comparatively littlecost,

' 1 while at the same time. producing a product which is of great uniformity and of such 1 slot 6 to receive oneend of an operating rod i 7 connected'to said treadle by means of a bolt compactness and with its 'edges finished-- in such a manner as to securely'holdthe differ ent portions of the sheet of plaited leather in a fixed position until it is finally utilized for the manufacture of the finished product, as, for example, shoes, etc. Further objects will appear from the detail description of my invention hereinafter; v 1

\Vhile my invention is capable of 'einbOdi: ment in many diflerent forms, by way: of illustration I shall describe only certain forms of my invention hereinafter, and while -itis capable of being carried out in connection with many dififerenttypesof apparatus, I have shown only one type pfapparatusrm use in connection therewith in the;-,aecom,-

panying drawings, in which I Fig. 1 is a front elevation of a machine used in accordance with' my nventionshow-i ing diagrammatically the number of strip, supporting levers therein P I 2 is a side elevation of the same;

Fig. 3 is an enlarged rear elevation of a portion of the operating mechanism;

n i Fig, 4 isuan enlarged 'detail ofj the leather shown in the process ofbeingjplaited i Fig. 5isan, elevation of the transverse sup p w V of wh chis provided Wltll a lowerhooked end 32 for receiving the free ends are correspondporting bar for the strip s oof leather;

5 r Fig. 6 is an 'enlargedfront elevation show ing one of the arms holdingthe slotted ends of the leather strips; i

7 is a plan view of-the lniifeused in the process;

Fig. 8 is a plan View of oneof leather therange suitable for utilization in the man "Fig."3,so as topass through openings 19a1 1 d '20 formedby through the arms, is-pivotally supported n lbands used for making the vertical strips .2

of leather;

mechanism' whichmay be 'used' in carrying eo outmy process. lThis comprises a foot treadle 3 .carriedby a pivot rod 4 which passes throughthe frame lin such a manner that the treadle 3 will bejsupported in an opening 5 in the middle 'of'the "frame 1 near the bottom thereof. The rear end of said treadle 3 hasa- 'andllwhich are in'turn'fconnectedby a trans verse bolt 12 to thetwo lower ends of links13 and 14;, which are normally retained in an upwardfposition byspfri'ngs 15 and 16 connected at theirlower-ends to the rod 12 and fat their'up'per ends to the rear of the frame lby means of eyelets-17 and 18. These links 13 and "1e ar'e 'flaj'red outwardly, as shown in uide bars 21 and 22'which are attached by bolts 23' to'the frame 1, spacing "blocks 24 being interposed'between saidframe andothe ends ofthe guide bars 21' and 22. In

frontofthe frame lsaid links 13 andl also ts 5 pass'through 'u rshaped'guide brackets 25 and V 26, which are supportedupon a transverse plate 27bolted'to the front face of the frame 1." At theirextreme upper ends the links 13 and V14= are pivotallyconnected by two rear links '28and 29,by means of pivot rods 29a and o' 291),", to; a transverse supporting bar 50 carrying thereon thirty-seven arms 31, each pose, These hooked arms 31 are pivotally supported-upon a rod 35 which, after passing the two U-shaped brackets where they are held .in place by means of nuts 36. Also, at the upper ends of the

links

13 and 14 there extend downwardly two

front links

37 and 38 which are connected at their lower ends to a transverse pivoted rod 39 carrying thirtyseven right-angularly shaped arms 40 which alternate in position between the, series of arms 31 and are likewise pivotally supported upon the rod 35. These right-angle arms 40 are also provided with hooks 41 at their lower ends to receive the other free ends of the leather strap 33, which are also provided with slits 34 for this purpose.

These leather strips 33 are introduced into the machine by passing them over a lower supporting bar 42, said bar 42 having hooked

portions

44 and 45 at the two ends thereof to receive a branched cord 46, the lower end of which is connected to a pin 47 just above the opening 5.

The vertical strips 33 are made from a composite band of leather 48 made up of two

short bands

49 and 50 sewn together at their ends by three transverse rows of stitching 51. is cut into strips longitudinally by any suitable mechanism so as to obtain therefrom the vertical strips 33 of the required length and width, the widths of the strips being entirely uniform throughout.

The vertical stripsof leather 33 are insert ed in this manner into the apparatus in such a way that the adjacent ends of each strand will present the same finished face of leather to the front towards the operator, this being accomplished by, giving the rear end of the :vertical strip 33, which passes over the rear side of the bar 42, a 180, turn, as shown in Fig.4, for this purpose. After the longitudinal strips have thus been placed in the apparatus the treadle 3 is operated to reverse the position of the ends of the longitudinal strips so as todraw the upper end of the

links

13 and 14 downwardly into the dotted line position, as shown in Fig. 2. This has.

the effect of moving the upper ends of the right-angle'arms 40 forwardly and the upper ends'of the arms 31 rearwardly so that the positions of the lower hooked ends of said

arms

40 and 31 are reversed, thus throwing the ends of the longitudinal strips. which were formerly to the front, now to the rear,

while the rear ends thereof now occupy the position previously taken by the other ends thereof. A knife 52, having tapered slits-53 and 54, is then inserted in a space 55 between the twolayers of longitudinal strips and lowered until it'cannot be moved any farther in view of the tautness of the longitudinal strips 33, which are tightly held down by the bar 42 and the cord 46. When the knife 52 has been moved into this position the longitudinal strips 33 will be preliminarily adjusted so as to see that all of them present The composite band of leather48 towards the front the finished face of the leather. Meantime, a number of transverse strips 56 are formed from a short band of leather 57 so as to produce simultaneously therefrom a number of such strips of uniform width and which are equal in width and thickness to the longitudinal strips 33, but of considerably shorterlengths. One end of a transverse strip 56 is then caught in one of the slits 53, 54, in the knife 52, and said knife moved transversely from between the two layers of vertical strips 33 so that said transverse strip 56 occupies the place formerly taken by the knife 52 with one end thereof protruding only a small distance from the side of the outermost vertical strip 33 and the other long end extending beyond the other side of the series of vertical strips. Thereupon, the treadle 3 is released to a ain reverse the position of the longitudinal ayers of strips. The knife 52 is again inserted strips, thus bringing the free end of the transverse stri out to the same side as the other end of said strip. The treadle 3 is again operated to shift the upper ends of the longitudinal I strips into the reverse position, whereupon the knife 52 is again inserted between the same and a second transverse strip attached so as to bring its finished side face outwardly to the front, when the knife is withdrawn, but in the opposite direction from the withdrawal of the knife in the first insertion operation of the transverse strip, so that the front end of the second strip protrudes from the opposite side from that where the freeend of the first strip inserted was located. After again shifting the upper ends of the longitudinal strip 33 with the treadle 3, the knife is again inserted and engaged with the free end of the second transverse strip,

after the same 180 turn therein, and said free end drawn through to the side occupied by the other end of said strip. In this way .plaite sheet of leather is obtained in which the position of the parts is retained due to the alternating location of the free ends of the transverse strips. Thereupon the cord 46 is disengaged, the bar 42removed and the upper ends of the sheet of plaited leather removed from the machine by lifting the slitted ends off from the

hooks

32 and 41. These slitted ends are then clipped ofi and abrush with rubber cement brushed over these free ends so that the rubbergwhich quickly dries thereornholds securely the free edge inplace. If desired, the other looped ends which'have formerly been retained by the bar 42, maybegiven a similar treatment with the {rubber cement, although this is not essential because of the loops which are in'this end of the fabric. Before applying the: rubber cement to this end of the fabric the looped ends may be cut off, if desired.v Finally, before'the fabric is used in the manufacture of shoes transverse strips respectively, and that, also,

the longitudinal, aslwell as the transverse strips, may be alternated in various colors, thus obtaining'very desirable color effects in the resulting leathersheet.

lVhile I have described myinvention above in detail I wish it to be understood that many changes may be made therein without depart-- ing from the spirit of the same. i 'Iclaimlk" 1. The process. which comprises producing a plaited sheet of leather by doubling a see ries of longitudinal stripsof leathe;r, snpporting the doubledends inqa series andthe other ends of said strips in two widely separated series with the free-end portion of the strip, which is adjacentto the nee-end porvion of the next strip,- locatednin a difierent series therefrom, andth'en introducing transverse strips of leather so that successive transverse strips'are locatedwith'the'loops against alternating edges of the series of longitudinal strips between said longitudinal strips by inserting one free-end of a' transverse strip, re ,vers-ingthe relative positions ofthe two series of ends of the longitudinal strips, and

then inserting the remaining end of said transverse strip betweensaid series; A 2. The processwhich comprises producing a plaited sheet of leather by doubling a series of longitudinal strips of leather, supporting the doubled ends :in' a series and the other ends of said stripsin two widely separated series with the freesend portion of the strip Wl1lCl11lS' adjacent to the free-end 7 portion of the next strip located in a dif ferent series therefrom and th-en'introducing transverse strips of leather so that successive transverse strips are located. withthe p againstalternating edges of the; series of longitudinal stripsbetween said longitudinal strips by insertingone free-end of a transverse strip, reversing the relative posi-' v; 4. The process which'cornprl 'tions of the two series of ends ofthe longitudinal strips, and then inserting the remaining endiof said transverse strip between said-series, this being accomplished by engaging and drawingthe free ends "of said transversestripsthrough the series of free-ends of the .longitudinalstrips as; they are shifted from one position to the other.

3. The process which comprises producing a plaited sheet ofleather by doubling-a series of longitudinal strips of leather, supporting the doubled ends in a series andthe other ends of said strips two widely separatediseries with the freer-end portion of the strip which is adjacent to the freeend portion of the next strip located ina different series therefrom, said two series offree-ends being located so Y as to present to the front the same face of l each leather strip and then introducing transverse strips of 1 leather so that successive transversestrips are located with the loops against alternating edges of the series of longitudinal strips between said longitudinal, stripsby inserting one free-end'of a transverse strip,reversing the relative positions of r the two series of ends of the longitudinal strips, and then inserting the remaining end of said transverse strip between-said. series with the same face onboth ends of the transversestrippresented to the front. o 'ses producing a plaited sheet *of'leathe'r by doubling a seother ends of saidstrips in twowidely separated series with the free-end portion of the strip, which is adjacent to the free-end portroducing transverse strips of leather so that a successive transverse strips'are located wlth the loops against alternatingedges of the se-' ries of longitudinalstrips between said longitudinal strips by inserting one free-end of a transverse strip, reversing the relative positions of the two series of ends of the longitudinal strips,and then inserting the remaining end'of said transverse strip between said serieswiththe same face on both ends of the ries ofllongitudinal strips of leather, supporting,thes-doubled ends in aseries and the LCD 'ition of the nextstrip located in a different se-. ries therefrom, said two series of free-ends being located so as to present to the front the same face of each leather'strip, and-then intransverseistrip presented tot-he front,- this f being accomplished byengagin and drawing the free-ends of saidtransversestrips through Y Y the series offree-ends of the longitudinal strips as theyfare shifted, from one position to the other. r

fil The process which comprises producing a plaited sheet of leather by doublinga seriesof longitudinalgstrips' of leather, supporting the doubled ends in a series'and the other ends of said strips in twowidely separated series I with the freeeend portionzof the strip, which is adjacent tothe free-end portion of thenext strip,'located in a different. series therefrom,

and then introducing transverse strips of leather so that successive transverse strips are located with the loops against alternating edges of the series of longitudinal strips between saic longitudinal strips by inserting one free-end of a transverse strip, reversing the relative positions of the two series of ends of the longitudinal strips, and then inserting the remaining end of said transverse strip between said series, and then securing together the ends of the longitudinal strips.

6. The process which comprises producing a plaited sheet of leather by doubling a series of longitudinal strips of leather, supporting the doubled ends in a series and the other ends of said strips in two widely separated series with the free-end portion of the strip which is adjacent to the free-end portion of the next strip located in a different series therefrom and then introducing transverse strips of leather so that successive transverse strips are located with the loops against alternating edges of the series of longitudinal strips between said longitudinal strips by inserting one free-end of a transverse strip, reversing the relative positions of the two series of ends of the longitudinal strips and then inserting the remaining end of said transverse strip between said series, this being accomplished by engaging and drawing the free ends of said transverse strips through the series of freeends of the longitudinal strips as they are shifted from one position to the other, and then securing together the ends of the longitudinal strips.

7. The processwhich comprises producing a plaited sheet of leather by doubling a series of longitudinal strips of leather, supporting the doubled ends in a series and the other eudsof said'strips in two widely separated series with the free-end portion of the strip which adjacent tothe free-end portion of the next strip located in a different series therefrom, said two series of free-ends being located so as to present to the front the same face of each leather strip and then introducing transverse strips of leather so that successive transverse strips are located with the loops against alternating edges of the series of longitudinal strips between said longitudinal strips by inserting one free-en d of a transverse strip, reversing the relative positions of the two series of ends of the longitudinal strips, and then inserting the remaining end of said transverse strip between said series with the same face on both ends of the transverse strip presented to the front and then securing together the ends of the longitudinal strips.

8. The process which comprises producing a plaited sheet of leather by doubling a series of longitudinal strips of ieather, supporting the doubled ends in a series and the other ends of said strips in two widely separated series with the free-end portion of the 5 mp winch is adjacent to the free-end portion of the next strip located in a different series therefrom, said two series of free-ends being located so as to present to the front the same face of each leather strip, and then introducing transverse strips of leather so that successive transverse strips are located with the loops against alternating edges of the series of longitudinal strips between said longitudinal strips by inserting one free-end of a transverse strip, reversing the relative positions of the two series of ends of the longitudinal strips, and then inserting the remaining end of said transverse strip between said series with the same face on both ends of the transverse strip presented to the front, this being accomplished by engaging and drawing the freeends of said transverse strips through the series of free-ends of the longitudinal strips as they are shifted from one position to the other, and then securing together the ends of the longitudinal strips.

9. The process which comprises producing a plaited sheet of leather by doubling a series of longitudinal strips ofleather, supporting the doubled ends in a series and the other ends of said strips in two widely separated series with the free-end portion of the strip, which is adjacent to the free-end portion of the next strip, located in a different series therefrom, and then introducing transverse strips of leather so that successive transverse strips are located with the loops against alternatingedges of the series of longitudinal strips between said longitudinal strips by inserting one free-end of a transverse strip, reversing the relative positions of the two series of ends of the longitudinal strips, and then inserting the remaining end of said transverse strip between said series, and then securing together the ends of the longitudinal strips with rubber cement.

10. The process which comprises producing a plaited sheet of leather by doubling a series of longitudinal strips of leather, sup porting the doubled. ends in a series and the other endsof said strips in two widely separated series with the free-end portion of the strip which is adjacent to the free-end portion of the next strip located in a different series therefrom and then introducing transverse strips of leather so that successive transverse strips are located with the loops against alternating edges of the series of longitudinal strips between said longitudinal strips by inserting one free-end of a transverse strip, reversing the relative positions of the two series of ends of the longitudinal strips and then inserting the remaining end of said transverse strip between said series, this being accomplished by engaging and drawing the free ends of said transverse strips through the series of free-ends of the longitudinal strips as they are shifted from one position to the other, and then securing together the ends of the longitudinal strips with rubber cement.

11. The process, which comprises produc-,

ing a plaited sheet of leather by doubling a series. of longitudinal strips of leather, sup porting the doubled ends in a series-and the 7 other ends of said strips in twowidely sepa-,

rated series with the free-end portion of the strip which-is adjacent to the free-endportion of the next strip located ina different series therefrom, said two series o'ffree-ends being located so as to present to the front 7 the same face of each leatherstrip and then introducing transverse strips of leather so that successive transverse strips are located with the loops against alternating edges of the series of longitudinal strips between said longitudinal strips by inserting one free-end of a transverse strip, reversing the relative positions ofthe two series of ends of the longitudinal strips, and then inserting" the remaining end of said transverse strip between said series with the same faceon bothends of the.transversestrip presented to the front and then securing together the ends of'the longitudinal strips with rubber cement.

12. The process which comprises producing a plaited sheet of leather by doubling a series of longitudinal strips or leather, sup-f porting the doubled ends in a'series and the other ends of said strips in two 'widelysepm rated series with the free-end'portion of the strip which is adjacent to the free-end1p0re tion of the next strip located in a difierent series therefrom, said two serieso'f free-ends being located so as to present to the front the same face of each leather strip, andthen} introducing transverse strips of leatheriso" that successive transverse strips are 1 located with the loops against alternating ledges of the series of longitudinal strips between'jsaid longitudinal strips by inserting one free-end of a transverse strip, reversing the relative positions of the two series of ends of the longitudinal strips, and then inserting the re:

inaining end of said transverse strip between said series with the same face on both ends of the transverse strip presented to the front, this being accomplished "by" engaging and drawing the free-ends of said transverse strips through the series of free-ends of the longitudinal strips as they are shifted from one position to the other, and then securing together the ends of the ,longitudinalrstrips' with rubber cement.

13. A sheet of plaited' leather comprising A i a series of parallel strips runningin one di- I rection and a series of interwoven flat leather str ps running cross-wlse of the first-mentionedstrips, the last-mentioned strips be ing located with a doubled end atone side,

so doubled as to locate the same face of the flat strip throughoutoat the, same side'of the and thetwo: ends of the doubled strip adjacent, to each other.

14. A sheet of plaltedleather comprising being direction .mr a series of interwoven flat leather strips running cross-Wise of the first mentioned strips, thellast-mentioned strips" being located so that the two halves thereof are interwoven, adjacent to each other in the sheet of leather with a doubled endat oneside, so doubled as to locate the same face of the flat strip throughout at the same side of the sheet of leather, and free endsat the other side of, said sheet of leather,'with the adjacent strips having their doubled ends against opposite sides of said sheet of leather. V

15. A sheet of'plaited leather comprising a series of parallel strips running in one direction, a series'of interwoven fiat leather strips runningv cross-wise of the first-mom tionedj strips, the last-mentioned stripsbeing located-with a doubled end at one side,

so doubled as to locate the same face of the flat strip throughout at the same side of the opposite sides of said sheet of leather and the two ends of the doubled strip being adjacent to each other, and an adhesive layer applied'to' the free ends of a series of strips;

16. A sheetof plaited leather comprising a series ofparallel strips running in one direction, ,a series "of interwoven fiat leather sheet of leather, and free ends at the other side of said sheet of leather, with the adjacent strips having their doubled ends against strips running crosswise of the first-mentioned strips, the last-mentioned strips beinglocated so that the two halves thereof are interwoven adjacently to, each other in the sheet of leather with a doubled end at one side, so doubled 'as'to locate the same face of'the fiat strip throughout at the same side ofthe' sheet of leather, and free ends at the-otherside of said sheet of leather, with the adjacent strips. having their doubled ends against opposite sides of said sheet of leather, andanadhesive layer appliedto the free ends of a series ofstrips. I

In testimony that I claim the foregoing, I have hereunto set rny hand this 6th day of FRANK BARBER;

sheet of leather, and freeends at the other side of said sheet of leather, with the ad-'