Патент USA US2121925код для вставки
June 28, 1938. ' > M. K. IO'CZKO ‘ 2,121,925 2 UNHAIRIN G F0 . LL Filed Jan. 24, 1938 ~ J } _ JZIKTOczko - 1N VEN TOR. By ATTORNEYS. Patented June 28, 1938 2,121,925 ' , UNITED STATES PATENT OFFICE’ 2,121,925 ' UNHAIRING ROLL _ Marion Keith Oczko, Johnstown, N. Y. Application January 24, 1938, Serial No. 186,685 3 Claims. This invention relatesto an unhairing roll for use in connection with unhairing machines such as employed for removing hair from hides used in the tanning industry. ' ‘ An object of the invention is to provide a du rable roll having ?exiblespirally arranged blades joined to'the roll ina new and novel manner, the said blades being so pitched as to discard the re moved hair past the two ends of the roll.v A further object is 'to provide an ‘unhairing I 10 roll which is'of increased 'e?iciency and has no tendency to injure the hide under treatment. .With the foregoing and other objects in view which will appear as the description proceeds, the “ ‘15 invention consists of certain novel details of con struction and combinations of parts hereinafter more fully described and pointed out in the claims, it being- understood that changes may be made in the construction and arrangement of '20 parts without departing from the spirit of the invention as claimed. ‘ In the accompanying drawing‘ the preferred form of the invention has been shown. 5' 25 ' face of the cylinder. 15 I It is to be understood that the ribs of each se ries are equally spaced apart and it has been found in practice that the angle of the advancing surface of each rib'should be pitched approxi mately thirty degrees to produce the most de 20 sirable results. While it is preferred to use ?exible rubberin the construction of the ribs, it is to be under erence l ‘designates the shaft of an unhairing machine onvwhich is mounted a roll or cylinder in the outer or peripheral portion of which are provided spiral grooves 3 formed in opposed se ries extending inwardly from the respective ends of vthe rolls, the grooves of the .two series merg ing adjacent to the center of the roll and the grooves of each series being pitched oppositely 40 to those of the opposed series. 25. I What is claimed is: 1. An unhairing roll including a cylinder hav ing grooves in the periphery thereof, blades an - chored in the grooves and projecting from the ' Referring to the ?gures by characters of ref ‘ 2 formed of cast iron or other‘ suitable material ' ‘Seated in each groove is a blade 4 preferably of steel which is extended throughout the length of the groove and follows the contour thereof, » each blade being fastened securely in'the groove by a caulking strip 5 preferably of steel. That portion of each blade 4 which is located outside of the groove 3 is seated within and vul canized or otherwise joined to a rib 6 formed of rubber and as these ribs are of the same length, 50 as the blades and grooves, they will abut adjacent to the center of the ‘roll as shown, for example, at 1 in Figure 1. The advancing faces of the ribs are inclined as indicated at 8 so as thus to con ‘ verge outwardly toward the opposite or follow ‘ 55 toward the ends of the cylinder or roll so that it will thus be quickly disposedof and not remain 10 where it will clog or otherwise interfere with the proper functioning of the device. Not only are the rubber ribs vulcanized to the blades 4 but they are also vulcanized to the sur stood that hard rubber may be used under some through the roll. “45 of the ‘hide. As’ the opposed series of ribs are oppositely positioned,‘ said ribs can, during the rotation of the cylinder, direct the loosened hair conditions. Figure 2 is an enlarged transverse section a rotates. As these ribs are formed of rubber they will frictionally engage the hair and beat it off » In said drawing ‘ being broken away. ‘ side of the hide to be treated’ being positioned Where the surface thereof will be touched by the outer edge portions of the ribs as the cylinder Figure 1 is an elevation of a roll embodying the present improvements, portions of the shaft '30 (01. 149-16) cylinder, and rubber ribs vulcanized on the 30 ‘ 2. An unhairing roll including a cylinder hav ing opposed series of grooves in the periphery thereof, the grooves of each series being pitched oppositely to the grooves of the opposed series 35 ‘ blades and cylinder. and the grooves of the said series merging ad jacent to the center of the cylinder, blades seated within the respective grooves and extending throughout the length thereof, means for an choring the blades in the grooves, and resilient 40 ribs vulcanized on the blades and on the face of the cylinder, said ribs following the contours of the grooves and abutting adjacent to the cen ter of the roll. , 3. An unhairing roll including a cylinder hav 45 ing opposed series of grooves in the periphery thereof and extending from the respective ends of the cylinder to points adjacent the center thereof, the grooves of each series being pitched oppositely to the grooves‘ of the opposed series 50 and merging at points adjacent to the center of the cylinder, blades seated within the respective grooves and projecting from the cylinder, means for anchoring the blades in the cylinder, each of ing faces of the ribs which, as indicated at 9, said blades being extended throughout the length 55 cylinder. Each ‘rib bears ?rmly upon the surface rib vulcanized on each blade and upon the cylin j are‘disposed substantially radially relative to the . of the groove in which it is seated, and a rubber of the cylinder. ‘ so In practice the cylinder is rotated in the direc tion indicated by the arrow in Figure 2, the hair der, said ribs following the contours of the‘ grooves and having inclined advancing faces. MARIO-N KEITH OCZKQ.