US244196A - Leather - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

O. DANOEL.

MACHINE FOR SPLITTING LEATHER.

No. 244,196. Patented J111Y'12,l881.

N, PETERS. Phommhv ra lw, Walhingtom D4 6.

(No Model.) 2 Sheets-Sheet 2.

G. DANGEL. MACHINE FOR SPLITTING LEATHER.

No. 244,196. Patented July 12,1881. l r

$32, W Wxk '3 MM, :34

N. PEYERS, Pholvhlhngnpher. Washin mn. O 00 CHRISTIAN DANOYEL,

PATENT OFFICE.

OF NEW YORK, N. Y.

MACHINE FOR SPLITTING LEATH ER.

SPECIFICATION forming p art of Letters Patent No. 244,196, dated July 12, 1881.

Application filed May 4,1881. (No model.)

' To all whom it may concern:

Be it known that I, CHRISTIAN DANOEL, a citizen of the United States, residing at'New York, in the county and State of New York,

' have invented new and useful Improvements in Machines for Splitting Leather and other Materials, of which the following is a specification.

This invention consists in the combination of a splitting-knife, a gage, and a feed-dog (one or more) the working-surface of which extends beyond the cutting-edge of the knife and forms a support for the material after the same has been split; also, in the combination of a splitting-knife, a gage, a carriage containing two or more feed-dogs, and springs, one for each feed-dog, to enable said feed-dogs to adapt themselves to the irregularities of the material to be split further, in certain mechanism for allowing the feed-dog or feed-dogs to drop as the same recede, as will be hereinafter more fully described.

This invention is illustrated in the accompanyin g drawings, in which Figure 1 represents a longitudinal vertical section in the plane 00 a, Fig. 2. Fig. 2 is a transverse vertical section in the plane y y, Fig. 1. Fig. 3 is an inverted plan, partly in section.

Similar letters indicate corresponding parts.

In the drawings, the letter A designates a platform which rests upon suitable supports, B, and which is provided with guideways a a, in which moves the carriage 0. Near one end of this platform is secured the splitting-knife D by two or more set-screws b, which pass through slots in the knife, so that the cuttingedge of the knife can be adjusted in the proper relation to the gage E. In the example shown in the drawings this gage consists of an L- shaped piece of cast-iron, which is secured by set-screws c c to a yoke, F, that rises from and is firmly secured to the platform A. The setscrews 0 0 pass through slots d d, Fig. 2, and a screw, 0, serves to raise or lower the gage, so as to accommodate the same to the thickness of the material to be split. Instead of using a flat L-shaped gage, however, I can use a roller-gage or a gage of any suitable form or shape.

The splitting-knife D which I have shown in the drawings is stationary, but said knife may be connected to a suitable mechanism for imparting to the same a reciprocating motion during the operation of cutting, or a band- 1knife may be substituted for the stationary 'nife.

111 the front end of the carriage O is formed a recess for the reception of the feed-dogs G, and a bar, H, which is screwed to the carriage, retains said feed-dogs in the recess. The working-surfaces of the feed-dogs extend beyond the cutting-edge of the knife, and each of the feed-dogs is exposed to the action 'of a separate spring, f, so that the same accommodate themselves to the inequalities of the material to be split. This arrangement is essential if my machine is used for splitting hides or leather which are not of uniform thickness throughout; but if my machine is used for splitting pasteboard or other materials of uniform thickness, a single feed-dog may be used.

rod, h, that forms the fulcrum for a series of bell-crank levers, i j, one for each feed-dog. The long arms 45 of these bell-crank levers extend over the spring f, and they are pressed up against friction-rollers '70, secured in the shanks of the feed-dogs, while the short arms j of said bell-crank levers are opposite to stops l, secured in the platform g in such a position that the feed-dogs cannot be forced up far enough to come in contact with and injure the cutting-edge ofthe knife.

The material to be split is placed upon the carriage O beneath the gage E, its forward end being supported by the feed-dogs G, which are provided with serrated or toothed faces, and as the carriage begins to move forward the serrated faces of the feed dogs G are pressed up against the under surface of the material, and are advanced by the forward movement of the table, thereby causing said dogs to force the material forward against the cutting-edge of the knife. During the operation of splitting that portion of the material beneath the knife is still supported by the feed-dogs, which carry the same forward and prevent it from becoming jammed, so that the splitting operation can be carried on without difliculty. When the carriage recedesthe feeddogs are allowed to drop, so as to clear'the material to be split.

The mechanism for moving the carriage consists of a crank, M, which is firmly secured on the outer end of a revolving shaft, m, mounted in a box, at, which is secured to the platform A. On the inner end of this shaft isnmounted a cam-disk, n, which carries an eccentric-pin, 0, that connects by a strap, p, with a pin or. rod, q, secured in the carriage O. The shaft is turned in the direction of the arrow, (marked near the crank in Fig. 1,) and as it moves toward the position shown in Fig. 1 the camdisk acts upon the lever 1 and the feed-dogs are forced up, while at the same time the carriage is drawn forward, which forward movement efi'ects the advance motion of the feeddogs. As the motion of the shaft proceeds the cam-disk n releases the lever I, so that the bell-crank levers t j, springs f, and platform 9 sink down, the springs fare prevented by the stops l from acting on the feed-dogs, and the feed-dogs drop clear of the material while the carriage is moved back, and when the carriage has reached the back end of its stroke the cam-disk acts again on the lever I, so that when the forward motion of the carriage commences the material to be split is carried forward by the feed-dogs.

It is obvious that a'pulley may be substituted for the crank if it is desired to drive my machine by mechanical power.

.before described, of the splitting-knife, the

gage, and'a series of feed-dogs each of which is. constructed to adapt itself to the surface of the material to be split independent of the remainin g feed-dogs.

3. The combination, substantially as hereinbefore described, of the splitting-knife, the

gage, the carriage containing two or more feeddogs, and the springs, one for each feed-dog.

4. The combination, substantially as hereinbefore described, of the splitting-knife, the gage, the carriage containing a series of feeddogs, the spring or springs acting on the feed dog or dogs, the platform supporting said spring or springs, the bell-crank levers i j, the stops 1, the lever J, and the cam-disk n.

In testimony whereof I have hereunto set 'my hand and seal in the presence of two subscribing witnesses.

OHRISTIANDANOEL. [L. s.]

Witnesses:

W. HAUFF,

E. F. KASTENHUBER.

Images