US1181758A

US1181758A - Method of finishing the edges of leather.

Info

Publication number: US1181758A
Application number: US77622713A
Authority: US
Inventors: Perley R Glass; Henry G Halloran
Original assignee: P R GLASS Co
Current assignee: P R GLASS Co
Priority date: 1913-06-28
Filing date: 1913-06-28
Publication date: 1916-05-02
Anticipated expiration: 1933-05-02

Description

messes,

- P. R. GLASS & H. G. HAL LORAN. METHOD OF FINISHING THE EDGES'OF LEATHER;

APPLICATION FILED 1UNE28, 1913.

J a fa /3,1916; 1,181,758. I lltented 1V 3 Flgl. l4 '8 n 1 l 7 12 Q i 13 a 9 fi- Fi s.

- Fig.6.

r V Inventor? I Parley R.Glass y- HenryvG. Hallorun,

M KW Atty's.

having been obtai to one gallon each '15 copal'or Eastlndia' gu "produced jty treating niftratcd or acetelated cellulose with fuse oil or amyl acetate and thereafter dissolving the same in a volatile hydrocarbon such-as ether, acetone, alcohol 5 or amyl al'cohol'orpreferably in a iri'ixture of acetone and the solution, if desired,

, giving body to the plastic composition and of increasing its flexibility when, dried. A suitable dye'may also be added to :the solution whenthe same is to be used upon tan, black or other colored leather in order that the leather may not show the efiecto'f treat:

ent. While the plastic compositions abovedo scribed *have' been found to be practical and efficient for the purpose set forth, it is to be understood, however, that our invention is; not limited to these products, but includes any plastic material having the properties of being leather adherent and contr -active. upon drying, the particular compositions to which reference has been :made being illustrative but not restrictive.

; In finishing the edge by our processit is not necessary that the edge be wholly curled under ,as'illustrated in the drawing, In many casesit will be found suflioient if the edge is slightly curled inasmuch as the plastic composition is of a water repellent 40 character and adapted perinanently to retain-theedge ofjthe leather in its rounded form.' I

While the treatment of the skived edge ofzthe leatl r with a contractive plastic composition asf aboyevdescribed isordi'narily su'llicie'nt to produoea perfect finished edge, it is found that some classes of leather 'are- 'less'susceptible to, the fcontractive action or the plastic composition, and that in others so there isa lack of uniformity in the character or ',a variation-,inporosity of different portions of the same piece'.- In such cases the" alinement'and the uniform curvature of the finished edge may be insured by applying 5 pressureto the'same' by means of adie or preferably by the, progressive application 'of"'pressure by an edge forming machine. such as that above described, (or by passing the. edge of the leatherythrough an edge r rounding machine). So far as the securing of the proper ahnement and curvature of the edge is-concerned it is not necessary that the tool or wheel 9 of the machine described shall mo a faster than the fried of the leather 55 edge. But it is frequently desirable to his coiirp'letely 'which consists in slightly skiving the edge the grain side of the 'leatheris use finish the {edge by hur-nishirigand by the machine described this burnishing' operation is thus performed simultaneously, and bythe same machine which 'r'assurcs the gre- (p-tired edge alinementandicurvature.

The treated edge-.mayl'ae subjected-to such pressure either before. the plastic material dried (ii-thereafter, since the plastic composition above described is of such character as permanently to adapt itself tothe form gii en it by the pressure applying device.

Having fully described our invention, i

What we claim as new and desire to secure by Letters Patent is:

1. The process of producing arounded,

smooth and "finished edge upon leather,

which consists in slightly skivingthe edg and coating the slr ived portion with Mott;

tion'of contractive plastic.mater-ial,.fwhereby th skived portionof the "leather islcaused to contract andcurlQ Y 2.,The processofiproducing a rounded, smooth and finished --edge upon leather,

fromth'e flesh side, and-coating the skived portion with a solution of contractive plastic material, whereby the marginal-portion of caused to curl toward thefleshside. u v

3,. The process ofproducing" a rounded, smooth and finished edge upon leather, which consists in slightly skivin g the edge, and coating the ski ved portionwith-a prep-- aration of water repellent contractive plas i tic material, whereby the marginal portion. of one" side of the leather'is'ca'useitl to curl toward the other side. l. The process of producing a rounded, smooth and finished 'edge uponyleather, 1'95 Whichfconsists in s'lightly skiving the edge,

coating the shived'portionrwith a solution of contractive plasticmaterial, whereby the marginal portion of'one, side of the leather is caused to curl toward the other'side, and finally applying suitable pressurejto the" edge to insure its alin'emcnt and uniform-dd gree of curvature. y v

55," The process of producing a rounded,- smooth v and finished edge "upon leather, which consists in slightly skiving the edge from; the flesh stemmin the skived portion with a solution of contractiv'e plastic material, whereby themarginal' portion of the graiuside of the'leather is caused to'curl toward the flesh side, applying suitable pressure to the edge'to insure its alinement and uniform curvature, and simultaneously burnishingthe curled portion to complete the finished edge. I A12 6. The process of producing a rounded,

smooth and finished edge upon leather, which consists in slightly striving the edge," and coatingthe'skived portion with a cellulose solution which has the property of can 1 which consists in slightly skiving the edge j from the-flesh: side and coating the skived portion with a preparation of cellulose dissolved in a mixture of volatile hydro-carons whereby the treated portion is caused to contract upon drying, and the grain side he leather to curl toward the flesh side, 9.1Th'e process of producing a rounded, smooth and finished edge upon leather, which consistsfiin slightly skiving the edge from the flesh side and coatingthe 'sk ived portion with a preparation of cellulose dissolved in volatile hydro-carbon, whereby the eated portion is caused tocontract upon di-ying,and the grain side'of the leather to curl toward the flesh side, and applying alinement and uniform curvature. 7 10. The process of producing a rounded, smooth, and finished edge upon leather, which consists in slightly skiving the edge, 353: coating the skived portion with a preparationl of cellulose dissolved in volatile hydroi carbon, whereby the treated portion; is

caused' to contract upon drying, and the it grain side of the leather to curl toward the ,t fiesh side, applying suitable pressure to the edge to insure its alinement and uniform curvature and simultaneously burnishing thecurledportion to complete the finished edge. I

acting when drying, whereby the marginal portion of the grainside of the leather is smooth and finished edge upon leather,

suitable pressure to the edge to insure its The process of producing a rounded,

smooth and finished edge upon leather, which consists in slightly skiving the edge from the flesh side, coating the skived portion with a preparation of cellulose dissolved in a mixture of volatile hydro-carbons of the alcohol. group, whereby the treated portion is caused to contract upon drying, and the grain side of the leather to curltoward the flesh side, applying suitable pressure to the edge to insure its alinement and uniform curvature and simultaneously burnishing the curled portion to complete the finished edge. i l

12. The process of producing a rounded, smooth and finished edge upon leather, which consists in slightly skiving the edge, and coating the skived portion with a solutionof cellulose and a resinous gum, where by the treated portion is caused to contractupon drying and leather to curl. 13. The process of producing a rounded, smooth and finished edge upon leather, which consists in slightly skiving the edge, and coating the skived portion with a. preparation of celluloid dissolved in acetone and alcohol, whereby the treated portion is caused to contract upon drying, and the display'side of the leather to curl. V

14. The process of producing a rounded,

the display side of the smooth and finished edge upon leather,

which consists in slightly skiving the edge, and coating the skived portion with a dyed preparation of celluloid dissolved in acetone and alcohol, whereby the treated Portion is caused to contract upon drying, and the display side of the leather to curl.

In testimony whereof, wehave signed our names to this specification, in the presence of two subscribing witnesses.

PERLEY R. GLASS.

HENRY G. HALLORAN.

; Witne'sses:

FREDERICK A. TENNANT,

TuoMAs J. DRUMMoND.