US2470111A - Method for bettering pelts and hides - Google Patents

Description

Z,470,1 l l May 17, 1949. G. A. RUBlssow METHOD FOR BETTERING PELTS AND HIDES Filed March 24, 1945 Evi/niv? Patented May 17, 1949 METHOD FOR BETTERING PELTS AND HIDES George A. Rubissow, New York, N. Y.

Application March 24, 1945, Serial No. 584,565

3 Claims. (Cl. 117-119) The present invention relates to the method and means for the treatment of pelts, hairy hides of animals and skins of reptiles having scales, and serves to prevent the shedding of hairs or peeling of scales.

It is known that hairy hides do not retain for long the necessary tightness of the hide in which the roots of the hairs are lodged, due to drying and/or chemical decomposition of the hide.

This invention provides means for considerably bettering the condition of the hairy hides so that, the hide will not dry out and therefore will not shed.

This invention provides a special impregnating means and method of application.

In the accompanying drawings:

Fig. 1 shows one of the simplified embodiments of the apparatus in a cross-sectional side view with parts broken out.

Fig. 2 is a sectional view of a coating means.

Fig. 3 is a plane view of Fig. 1.

In the drawings, the skin is shown out of proportion (enlarged) to make reading easier.

This invention comprises a method of impregnating hairy hides with natural or articial rubber (latex) or rubber-containing materials and, when desired, curing or prevulcanizing same imvpregnations either before, during, or after such impregnation has been applied.

One example, for the purpose of illustrating this method and means, is described in this specication, but this, however, does not limit the invention thereto.

In Fig. 1, a supporting or bottom casing Ill is shown, on which the top plate II' is mounted or forms a part thereof. The top casing I2 with it's bottom flanges I3 are so designed that they occupy at least a part of the top plate, forming a closed contour either on top or sideways.

One of the aspects comprises having the bottom casing I in the form of a hermetically sealed container, achieved by providing a safety cushion III made from soft rubber or a soft gelatine mixture or other suitable, highly elastic material which is interposed between the top plate II and the flanges I3; the hides I5 being placed, for instance, with the smooth side I6 upwards and the fur, hair or scales I1 downwards. If desired, another highly elastic medium means I8, of the same character as previously described (cushion I 4) may be interposed between the bottom flanges I3 and the hides I6. Pressure means such as clamps or screws I9 may be provided to press the bottom casing Ill towards the top plate I'I, thus compressing the parts 20, 2| of the hides in between the cushions I4 and I8. Such compression may, if desired, lead to hermetioally sealing the hairs or scales at that portion due to the abovementioned pressure. Should this sealing pressure still be insucient, to produce a desired substantially hermetical sealing then the hairs or scales may be wetted with a neutral liquid prior to compression; such neutral liquid being water, parain grease, etc. which is easily removable.

Support screen 22, with additional reinforcements such as bars, etc. 23, 24 may be provided and rested on a resting means 25, 26, 2'I, preferably in a closed contour in the body of said casing, permitting the skins to rest on same. A groove 8 may also be provided when it is desirable to bend the screen as shown by the example in Fig. 1, for tighter insertion. The screen is not shown in Fig. 2 to simplify the drawing.

A vacuum 28, of a desired intensity, is provided in the bottom casing Ill and is maintained, if desired, by continuous pumping means 29, 30 (the pump is not shown in the drawings since it is self-explanatory). Thus, the air 3| from the bottom casing tends to slowly flow in the direction of the vacuum. At this time or prior to creating the vacuum, the outer layer 9 of the hide IB is to be covered With a suitable rubber-containing impregnating means in a uid or substantially uid state, with or without applying heat and/or pressure in the upper casing I2.

Such rubber-containing impregnating means may be, by way of example, latex or natural rubber applied in its crude form as a layer. Immediately after such an impregnation is made up to predetermined desired depths into the skin from its smooth or from the hairy or scaly side and in a predetermined desired quantity, the process of impregnation may be stopped by substituting the vacuum with the ysame pressure which is in the top chamber.

There after such latex layer may be pulverized with rubber-hardening means or rubber curing means well-known in the industry, and thereafter the hide may be vulcanized or prevulcanized to a desired degree of rubber hardness either by applying direct heat or by infra-red or other heating rays. If desired, the whole hide may rst be impregnated with the latex or other rubbercontaining layer, or this may be achieved by continuously removing one part of the skin which has been impregnated and there after impregnating the neighboring part and so on until the Whole skin has been impregnated.

Instead of natural latex, articial `substitutes of rubber, well-known in the art, may be used.

This invention is not limited to the above ex- 1 amples of the rubber containing impregnating means and other mixture of varnishes and/or lacquers With rubber (natural or artificial) may be used.

Instead of using vacuum 28 in the bottom casing Hl, this casing "may be at the atmospheric Ypressure 'while the top casng'is under any desirable pressure, higherthan atmospheric. For

instance, l atmosphereimay'be in the bottom casing and 5 lbs., 10 lbs., or '50 lbs. or more in the upper'casing; or 2'at'mospheres maybe in the bottom casing and 3' or '4 in the upper,etc. This is for example only.

To introduce the impre'gnating means, coating means of lvariois types'ma'y be applied such as "a ybrush 32, vprovided 'with entrances 33 and `311 through Which the impregnating medium is penetrating into the bristles 35 or" the brush and'there- 4`after the brush is rubber "along the hide leaving as much impregnating means as desired. `An ordinary painters brush can also be used (not shown in the drawing as it is` selfexplanatory) or a pulverizing injector'pr a pluralityof them '35, Si, and' the impregnating means is spread on the hide.

Although this invention pertains mostly to irn- -pregnating the hairy hide'fr'om thesmoothside,

the impregnation may also be made from the hairy side if so desired. In this event the folvlicle of the hair and the a'djacent'skin should befirst covered with im'pregnating fluid 'of the character herein described:` and thereafter a difference of gas pressure be applied in the opposite direction than that previously described;

i. e., the lower pressure onthe smooth sideofi the hide "and the higher pressure on `the hairy side.

Although thisinventi'on pertains mostly to the impregnation of pelts, i; e. hairy hides itis not limited thereto since the same processes may', also be applied to reptilianskins having scales and in this case it is obvious that this process will keep such skin from drying outyvlill increase its impregnability and will reduce the peeling of scales.

Still another method vcomprises first drying and/or dehydrating the hide and thereafter yapply the method of impregnation. This vparticular method will open the pores by drying and will consequently make such hides more receptive for impregnation.

Any type of hide may be so treated including reptilian skins having scales, long and sh0rthaired furs, etc. The hide and hides having scales so treated with this means will have much better characteristics, particularly, it will not dry "out'and/or shed or peel, this being fof primaryi` limportance to the trade.

Having now ascertained and particularly de- "scribed the nature of my invention and the manner in'which it is to be performed, I declare that what I claim is:

1. A method of preventing the shedding of "hairsfr'om pores of furs and of hairy hides of 'animals comprising: rst applying a layer of rubber containing solution on the smooth side 'ofsaid furs and said hairy hides, second providing a lower gas pressure on the hairy side of furs'and said hairy hids"`thah' thepressure "o'nfsa'id smooth isidegtleiebyforeibly introduc- *ing said solution intoy said pores, third Touring *said fursv and said hairy hides tliereloy'vul'can'iz'ig said solution.

2 A methodof 'preventing :the shedding of hairs from pores of fu'rs of animals1-compri'sirg:

' frst applying a' layer' lof rubber containing soluviding a lower gas pressure "'o'n 'thef's'rnooth Iside Aof said fursy than the-pressure "on said hairy'si'de, thereby forcibly introducing said 'solution into said pores, third vulcanizing said layer whereby saidc urs is prevented fior'i'ishddng. I

3. A methodof ipl'vehtirlg the V'shedding' "of hairs from pores 'of'furs 'of fanimals comprising:

irst dehydrating said fur'by means of drying,

second "applying a, layer of'a rubber containing solution on one side of saidfursf tl'iirdvprovidiig falov'ver gas pressure 'on the other side of lsaid'rfurs than the pressure "on "fsaid rst 4mentioned side thereby forcibly introducing said `solution into said'por'es, fourth curing said furs there'b'y'v'ulcanizing said layer. A y y 4 GEORGE A.`RUBISSOW.

REFERENCES CITED yThe following referencesare of record in :the

ile of this patent:

Um'r-ED s'rA'rEs PATENTS Number Name y Date ,I y,

1,667,408 ,enen 'A'pr. v24, "1'928 v1,860J'a`51 Bradley et'al. May 31, 112932 1,926,943 Hauoran sept. 12, 193B 2,032,027 Rees Feb `25,1 l'2,065,892 Hanley Dec. 29,1936 A2,069,753 Einhardt Feb. 9,-'1937 FOREIGN PATENTS `Nurnber Country `Date 209,811 Great *Britain Y 1J an. I6, 1924

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