US618869A - Machine for treating hides - Google Patents

Description

I rmunten Feb. 7, |899.

J. H ALL. HAGHIN FOR TBEATING HIDES, SKINS, 0B LEATHER.

(Application led Oct. 4, 189B.)

2 Sheets-Sheet l.

(No Model.)

Patented Feb. 7, |899.

No. slass. l

J. HALL..

MACHINE FO'R-TBEATING HIDES, SKINS, 0R LEATHER.

(Appucasion 'mea omu 4, 189s.)

2 Sheets-Sheet 2.

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JosEPH HALL, or LEEDS, ENGLAND.

MACHINE FOR TREATING HIDES, SKINS, OR LEATHER.

SPECIFICATION forming part of Letters Patent N o. 618,869, dated February 7, 1899.

Application filed October 4, 1898. Serial No. 692,611. (No model.)

To all whom t may concern:

Beit known that I, JOSEPH HALL, a subject of the Queen of Great Britain, residing at Leeds, in the county of York, England, have invented certain new and useful Improvements in Machines for Treating Hides, Skins, or Leather, of which the following is a specification.

My invention has relation to a machine especially adapted for those operations upon hides, skins, and leather technically known as softeningf setting out, or putting out, although it may also be adapted for other and analogous operations, and in such connection it relates particularly to the construction and arrangement of such a machine.

Heretofore in machines of the class or type known as softening, setting out, or putting-out machines, as illustrated in Letters Patent No. 599,331, granted to me under date of February 22, 1898, the work was supported upon a vertically-arranged frame or table, and during the upward movement of said frame or table the work was presented to two working rolls or cylinders, one on either side of the table.

In the machine of the present specification the parts have been reorganized, rearranged, and simplified, so that but one working roll or cylinder is required and the Work is supported on a horizontally-arranged apron or flexible bed which is vertically movable to present the work to the roll and is adapted to be reciprocated longitudinally to cause the roll to act upon the work from end to en d.

My invention, stated in general terms, consists of a machine for treating hides, skins, or leather constructed and arranged in substantially the manner hereinafter described and claimed.

The nature and scope of my invention will be more fully understood from the following description when taken in connection with the accompanying drawings, forming part hereof, in which- Figure lis an end elevational view of a machine embodying main features of my invention. Fig. 2 is a top or plan view of the machine. Fig. 8 is a side elevational view of the machine. Fig. 4 is a longitudinal sectional view on the line a: a; of Fig. 2, and Fig.

5 is a similar view of a modified form of ma chine wherein the flexible bed is supported upon two rollers in fixed bearings and above one or more perforated pipes from which air under pressure escapes to sustain the bed in operative position.

Referring to the drawings, b h represent the side frames of the machine, the top portions of which form bearings for a shaft a, carrying the working roll or cylinder a. shaft a, which'forms the power-shaft of the machine, are located the fast and loose pulleys a and a2, by means of which the machine may be brought into and out of operation. On the shaft a is also located a drum or pulley b4, which is connected bya straight belt h5 and a crossed belt h6 With two loose pulleys 197 and bs on a shaft e, having bearings in the lower portion of the side frames h. Between the two loose pulleys 57 and t8 on the shaft e is located a fast pulley b9, on which is adapted to be shifted, as hereinafter described, eitherthe straight belt b5 or crossed belt h6, whereby the shaft e will be rotated in one direction or the other, according to which belt is on the fast pulley. v

The side frames b are grooved, as at Z210-, to receive and guide a horizontally-arranged frame or table b', carrying at its ends the uprights or standards b2 and b3, over which is drawn an apron or flexible bed lo. One end of the apron k is by preference secured to hooks 7o' on the table h', while the other end is attached directly to the upright or standard b3. The table or frame b and the apron la are given a reciprocating movement below the work-roll c by means of the following preferred mechanism: On the shaft e is secured a pinion e', which gears with a rack m, secured to the base of the table b', and thereby moves the table'in a horizontal plane according to the direction in which the shaft e rotates. As previously explained, the shaft @rotates first in one direction and then in the opposite direction, according to Whether the straight or crossed belt is on the fixed pulley b9 of shaft e. Hence the movement of shaft e through pinion e and rack m imparts a reciprocating movement to the table h and its apron k.

The automatic shifting of the straight and crossed belts is accomplished, preferably, by

On the l the movement of the table or frame b in the A following manner: The belts b5 and b are moved by belt-forksf11 and fm, carried by a rod or bar f 2. Pivoted, as at f, to the base of the machine is a weighted lever f', in the slot f13 'of which extends a pin or projection f14 of the rod or bar f2. The bar or rod f2 has a projection or pin f3 intermediate of its ends, which projection is adapted normally to come into contact with either of the oppositely-inclined tappets j"4 or f5, carried by the table b and to be shifted with the bar f2 in one direction or the other by said table, according as either tappet]L14 or f5 engages said pin f3. The bar f2 extends beyond the projection f 3, and is provided with a collar f6, which is adapted to be engaged by the forked end of a rod f 7, pivoted to a hand-lever cZ and guided in a lug]v8 of the vframe b, so that when the lever (Z is moved in one direction the forked rod f7 will engage the collar]c6 to prevent movement of the belt-shifting bar f2.

Above the table b and below the apron or fiexible bed k is located a vertically-movable frame or support c, in which are carried the rollers c', the shafts of which have springbearings c2, arranged in boxes o3, which are guided vertically in the side frames l) of the machine. The frame or support c is adapted to be elevated and depressed in the following preferred manner: The hand-lever (Z is xed to a shaft CZ, adapted to rock in suitable bearings in the side frames Z2. This rock-shaft CZ is also provided with-the two arms (Z2, each of which is connected by a suitable link d3 with two similar arms CZ* and (Z5, carried by the shafts ZG and dT, having bearings in the side frames Z) directly below the support or frame c. The upper ends of the arms d4 and (Z5 are toggled to the support or frame c by means of the links (ZS and (Z9, as clearly illustrated in Fig. It. NVhen now the hand-lever d' is operated to draw the forked rod f7 out of engagement with the beltshifting bar f2, the arm d2 and link Z3 will throw the support c and its rollers c' upward to the position shown in Fig. 4, in which position the apron and the work are brought by the rollers c into such relationship with the workroll a that approximately one-third of the periphery of said work-roll can act upon the work. Vhen the hand-lever CZ is shifted in the opposite direction to bring the forked rod f7 into engagement with the belt-shif tin g bar fi, the support c and rollers c' are lowered and the apron or iiexible bed 7c falls away from the working roll c. In this latter position of the apron the work may be removed or replaced. To place the work upon the apron, one end of it is brought over the projection Z13 and held there by a nipping-bar g, which is supported by vertical rods g', the lower ends of which carry the rolls g2, which ride upon the links (Z3. lVhen the links Z3 are lowered to lower the support c and the rollers o', the rods g' and rolls g2 drop to bring the nipping-bar g away from the under side of the projection b3. In this position of the nipping-bar g the end of the work is inserted between the nipping-bar g and projection b3, and when the machine is again put into operation by the release of the shifting-bar]v2 and the elevation of the support c and rollers c the link d3 is elevated and raises the nipping-bar g to pinch or clamp the end of the work to the projection b3.

In Fig. 5 amodified form of the machine is shown wherein the rollers c' are not supported in spring-bearings, but are fixed against vertical movement. In this form the flexible bed 7o passes over the two rollers o and. over one or more air-pipes m, located intermediate of the rollers and perforated at the upper edge or edges, as at m. Air under pressure is forced into these pipes 'm an d escapes through the perforations m, thus supporting the ilexible bed in operative position and yet permitting it to yield in a vertical direction. If desired, the apron Zt' may be entirely dispensed with in this form and the hide or skin may be sustained upon the rollers c in operative position with respect to the cylinder c by means of the air-blast from the pipes m.

Having thus described the nature and objects of my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a machine of the characterdescribed, a single working roll, a table, a flexible bed supported by said table, means for reciprocating said table below the roll, and means for elevating the flexible bed into operative position with respect to said roll, substantially as and for the purposes described.

2. In a machine of the character described, a single working roll, a horizontally-arman ged table, a iiexible bed supported by said table and located below the working roll, means for reciprocating said table, mechanism for elevating said flexible bed during the reciprocation of the table so as to presentthe bed to the periphery of the working roll, and mechanism for securing the work to the bed during the reciprocation of the table, substantially as and for the purposes described.

3. In a machine of the character described, a working roll, a table, means for reciprocating the table beneath the working roll, an apron supported by said table, two rollers located below the apron and on either side of the working roll, and means for elevating said rolls to present the apron in operative position to the working roll during the recip- IOO IIO

rocation of said table, substantially as and for the purposes described.

In testimony whereof I have hereunto set my signature in the presence of two subscribing witnesses.

Vitnesses:

ANNA I-InRNs, ETHEL HALL.

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