US367257A - Hide-working machine - Google Patents

Description

(NO' Model.)

B- WHITNEY.

V HIDE WORKING MACHINE. Iva-367,257. Y Patented July 26, 1887.

UNITED STATES PATENT OF ICE.

ARTHUR E. WHITNEY, OF WINOHESTER, MASSACHUSETTS.

HIDE-WORKING MACHINE.

SPECIFICATION forming part of Letters Patent No, 367,257, dated July- 26, 1887.

Application filed May 19, 1837. Serial No. 238,746. (No model.) i

.To all whom it may concern.- Be it known that I," ARTHUR E. WHITNEY, of Winchester, in the county of Middlesex and State of Massachusetts, haveinvented a new and useful Improvement in Hide-VVorking Machines, of which the following, taken in connection with the accompanying drawings, is a specification.

My invention relates to machines for unhairing, working out, and securing hides; and it consists in a novel construction of the feedroll and a novel arrangement of the bed and feed rolls relative to the working-cylinder, which will be readily understood by reference to the description of the drawings and to the claims to be hereinafter given.

Figure 1 of the drawings is a transverse secfional elevation of a machine embodying my invention. Fig. 2 is a partial elevation of one of the end frames and the boxes for carrying the bed and feed rolls, with the shafts of the rolls and working-cylinder and the spring-casings cut in section. Fig. 3 is a vertical section through the upper portion of one of the end frames and the roll-carrying boxes, and showing the levers and screws for adjusting said rolls in elevation; and Fig. 4 is a transverse'section of the feed-roll drawn to an enlarged scale. g

This invention is an improvement upon the invention described in Letters Patent No. 330,655, granted to me November 17, 1885, to which reference may be had for a plan of the machine, no more drawings being made in this case than is necessary to illustrate the improvements.

In the drawings, A is one of the end frames of the machine, which is connected with a similar frame at the other end of the machine by the tie-g'irts B and B and the feed-table O.

D is the bed-roll mounted in hearings in the horizontally-movable box a, fitted to suitable housings in the frame A and pressed toward the working or knife cylinder by the springs b, substantially. as in said prior patent.

E is thepressure feed-roll mounted in hearings in the vertically-movable boxes (1, only one of which is show'n,which boxes are pressed downward by the springs 6, (only one shown,) the regulation and operation of which are the same as described in said prior patent. The core of the feed-roll E is made of metal,and has formed in its periphery ascries of longitudinal grooves,

- in which are fitted strips of wood 0 0, the outer surfaces of which are turned or otherwise worked to the circle of the cor-e, and then thewhole is covered with an. envelope, 0, of felt or other suitable flexible and elastic material, which may be done by wrapping a ribbon or band of said flexible and elastic material spirally around the cylinder, orwrappinga sheet of said material around the same, butting its edges and securing it by nailing it to the strips 0 c, as shown in Fig. 4.

F is the working eylinder, constructed, arranged, and operating substantially as described in said prior patent.

In my prior patent above cited the pressure feed-roll E was placed directly above the bedroll, or with its axis in the same vertical longitudinal plane as the axis of the bed-roll, and mechanism wasprovided for raising the press ure feed-roll at the same time that the bed-roll was moved horizontally away from the working-cylinder whenever, for any reason, it was desirable to change the position of the hide. This was found to be objectionable on account of the extra labor required of the operator in moving both rolls at the same time, andalso for the reason that the feed-roll was moved away from the bed-roll as fast as the bed-roll was moved away from the working or knife cylinder, while there are times when it is very desirable to be able to move the bed-roll away from the working or knife cylinder to a. limited extent by a slight movement of the treadle without materially affecting the'pressure between the feed and bed rolls, or by depressing the treadle to a greater distance to relieve thepressure between the bed-roll and the feed'roll, as well as between the bed-roll and the working or knife cylinder. To obviate these objections and produce the'results above named", I mount the pressure feed-roll' in a position with its axis in a longitudinal vertical plane about one inch nearer to the working-cylinder than the axis of the bedroll, and rest its boxes upon the inner ends of the levers g, pivoted to the end frames, A, at h,

ICO

with the free end of one arm in contact with the side of the box a opposite to the spring I) and the free end of the other arm pivoted to the upper end of the link H, the lower end of which is stepped on the rear end of the treadle-lever I, as shown. By this construction I am enabled to sulficiently separate the bed-roll from the working-cylinder and from the pressure-roll by simply moving the bedroll horizonta1l-y,without raising the pressureroll, whenever it is necessary to change the position of the hide during its passage through the machine, the pressureroll being pre vented from falling below a given level,as the roll D is moved toward the front, by the lever g,- or, by moving the treadle-lever downward from its normal position a limited distance, the bed-roll may be moved away from the working or knife cylinder a sufficient distance to relieve the pressure between the bed-roll.

and the working or knife cylinder or permit the passage of a thicker part of the hide, as the head or neck, without iclievi ng the pressure between the bed and feed rolls, so as to stop the feeding of the hide.

I am aware that wooden feed rolls have been covered with felt or similar material; but the wooden roll is liable to spring while in operation and sometimes to become permanently bent, a smooth metal roll is liable to slip upon the hide and not feed the same, and a rough ened feed-roll, like that described in my prior patent before cited, is liable at times to injure the hide.

The object of constructing the feed-roll as herein described is to obviate the objections above referred to.

\V hat I claim as new, and desire to secure by Letters Patent of the United States, is-

1. In combination with the bed and work rolls of a hide-working machine, a feed-roll composed of a metal body provided with a series of longitudinal grooves filled with strips of wood, and a flexible covering, substantially as described, wrapped around said core and strips and secured thereto by nailing into said wooden strips.

2. The combination of the laterally-movable bed-roll D, the vertically-adjustable feed-roll E, the pivoted stop-levers g g, and adjustingscrews 1', all constructed and adapted to oper ate substantially as and for the purposes described.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 16th day of May, A. D. 1887.

ARTHUR E. HI I TNEY.

Witnesses:

JAMES '1. MURRAY, N. O. LOMBARD.

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