US727872A - Machine for making leather-board. - Google Patents

Description

PATENTBD MAY 12,1903;

5,1). ALVORD. MACHINE FOR MAKING LEATHER BOARD.

APPLlOATION FILED JUNE 26, 1901.

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No. 727,872. PATENTED MAY 12, 1903.

- B; D. ALVORD.

MACHINE FOR MAKING LEATHER BOARD.

APPLICATION FILED JUNE 25, 1901a H0 MODEL. 3 SHEETS-SHEET 2.

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E.D.ALVORD.

MACHINE FOR. MAKING LEATHER BOARD APPLIOA'I'IONFILED JUNE 25, 1901. N0 MODEL. 3 SHEETS-SHEET 3.

Patented May 12, 1903. g

i ATENT 'rFroE.

EDWIN D. ALVORD, OF TALCOTTVILLE, CONNECTICUT, ASSIGNOR TO THE AMERICAN FIBER LEATHER COMPANY, OF BRIDGEPORT, CONNECTICUT,

A CORPORATION OF NEW JERSEY.

MACHINE. FOR MAKING" LEATHER-BOARD.

SPEGIFIGATIONformin part of LettersgIPatent No. 727,872, dated-May 12, 1903.

Applioationfiled June 25,1901.

To aZZ whom it may concern.- 7 Be it known that I, EDWIND.ALVORD, a citizen of the United States, residing at'Talcottville, in the county ofHartford and State of Connecticut, have invented'certainnew and useful Improvements in Machines for Making zo companying drawings as embodying the invention has a horizontal shaftwith a frame supporting radially-movableperforated beds arranged to carry pulp-molds with foraminated bottoms and covers andby centrifugal action as the shaft is rotated move outwardly and force the molds against perforated heads that form the periphery of the frame, so as to express and throwvoff all water from the pulp that is containedin the molds.

tion of a centrifugal leather-board machine that embodies the invention.

5, mounted on the shaft, may be belted to any source of power, Fig. 2. Two collars, 6 5 are fastened on the shaft, and projecting radially with their inner ends threaded and tapped into the collars anditheir outer ends passing through the ends of the metal plates 7 are rods 8. On the rods between the plates Figure 1 of the views shows a front eleva-v Fig. 2 shows a. side elevation of the samev machine. Fig. .3 shows a vertical transverse sectional view, on-

Serial ra'eaet'z. oib mania and the collars are tubes 9, and on the outer 5o threaded ends of the rods are nuts 10, which 'Whenscrewed up clamp the ends of the plates between' the ends of the tubes and the bands 11, thatv encircle the fram Fig. 3.

The plates '7 are perforated, and fastened 5'; to their inner faces between the tubes are a number of perforated heads 12, preferably form ed of wood with perforated metal linings 13. The perforations through the plates, the wooden heads,. and the linings coincide, but are shaped so as to increase in diameter toward the outside, Figs. 3,4.

Posts 14, with theirinner ends screwed into brackets 15, clamped tothe frame-tubes, and their outer ends fastened; to the peripheral 6 plates, are provided for guiding the radiallymovable perforated beds 16. Each of these beds is composed of an outer perforated metal Ilic plate 17, an inner perforated metallic plate 18, and a perforated wooden body 19, with lugs 20, adapted to lit the four guiding-posts. The perforations through these parts are tapered, the inner ends being the smaller, Figs. 3,4. a

Two sleeves 21 are fastened to the back of each of these beds. The outer end of each sleeve is attached toa flange 22, that is held .alittle ,distance'away from the back. of. the bed by studs 23, so as not to obstructanyof the perforations through the bed. A-rod 24 8o projects loosely into each sleeve, and aspring .25is placed upon eachrod, soar; to thrust be tweena collar 26,'fasten ed tothe ro d'andthe end of the sleeve. Eachrod is threaded and carries a nut 27, which bears a worm-wheel 28. The inner ends of the nuts thrust against the ends of sleeves 29, that are screwed into collars 30, fixed on the shaft, and that receive the ends of the rods. A shaft 31, bearing two worms 32 and having a squared end for the reception of a crank 33, is supported by brackets 34, attached to the outer ends of the sleeves 29 in each section, so that the worms will mesh with the worm-wheels, Fig.4.

By means of the worm and worm-wheels 5 the nuts are rotated so that they will move the rods 24 and through the medium of the springs f rce the beds outwardly or allow them to drop inwardly, according to the direction of rotation of the crank.

A mold 35, containing pulp, is placed upon each of these beds. Each mold consists of a hollow rectangular frame 36, preferably formed of wood, and a bottom formed of a perforated sheet-metal plate 37 with a bottom lining 38, composed of wire-netting covered with open-m esh cloth. A cover 39, composed of a perforated sheet metal plate and wirenetting covered with open mesh cloth, is loosely placed in each mold on top of the pulp.

In the machine shown a moldis placed upon a bed as the machine is turned and the bed comes above the floor, and then by means of the crank, worms, worm-wheels, and springs the bed is forced outwardly, so as to compress the mold containing the pulp between the bed and the head. Each bed when placed in position is forced outwardly and held with the springs under considerable tension. After all the molds containing pulp have been placed in position on the beds and forced outwardly against the heads the machine is set in motion. Under centrifugal action due to the rapid revolution of the molds and the heavy movable beds back of the molds these parts tend to move outwardly with great force, and this compresses the pulp and expresses the water and allows it to fly off through the perforations.

W'ith this machine leather fibers which are coarse and greasy can be firmly knit into a compact mass and the water of the pulp thrown 0E without injuring the texture of the mass or breaking the fibers. This machine is simple to build, it is easily operated, and large masses of pulp may be formed into thick sheets by the expenditure of very little power. It is easy to place the heavy molds containing the pulp in this machine and to remove them after the moisture has been expressed. If desired, a cover may be placed over this machine to prevent the water from flying.

I claim as my invention 1. A machine for forming leather-board from pulp, consisting of a horizontal shaft, a frame supported by the shaft, perforated heads fixed to the periphery of the frame, perforated beds movably supported by the frame inside of the heads, and molds with foraminated bottoms and covers placed between the beds and the heads,substantially as specified.

2. A machine for forming leather-board from pulp, consisting of a horizontal shaft, a frame supported by the shaft, perforated heads fixed to the periphery of the frame, perforated beds movably supported by the frame inside of the heads, means for moving the beds outwardly toward the heads, and molds with foraminated bottoms and covers placed between the beds and the heads,'snbstantially as specified.

3. A machine for forming leatherboard from pulp, consisting of a horizontal shaft, a frame supported by the shaft, POI'ffjtttGd heads fixed to the periphery of the frame, perforated beds movably supported by the frame inside of the heads, worms and worm-wheels for moving the beds outwardly, and molds with for'aminated bottoms and covers placed between the beds and heads, substantially as specified.

4:. A machine for forming leather board from pulp, consisting of a horizontal shaft, a frame supported by the shaft, perforated heads fixed to the periphery of the frame, perforated beds movably supported by the frame inside of the heads, worms, worm-wheels, nuts and springs for moving the beds outwardly, and molds with foraminated bottoms and covers placed between the beds and heads, substantially as specified.

5. A machine for forming leather-board from pulp, consisting of a horizontal shaft, 21

frame supported by the shaft, heads having tapering perforations fixed to the periphery of the frame, beds movably supported by the frame inside of the heads, and molds with foraminated bottoms and covers placed between the beds and the heads, substantially as specified.

6. A machine for forming leatherboard from pulp, consisting of a horizontal shaft, a frame supported by the shaft, perforated heads fixed to the periphery of the frame, beds having tapering perforations movably supported by the frame inside of the heads, and molds with foraminated bottoms and covers placed between the beds and the heads, substantially as specified.

7. A machine for forming leather-board from pulp, consisting of a horizontal shaft, 21. frame supported by the shaft, perforated heads fixed to the periphery of the frame, perforated beds movably supported by the frame inside of the heads, sleeves connected with the backs of the beds, springs tending to thrust the sleeves outwardly, means for compressing the springs, and molds with foraminated bottoms and covers placed between the beds and the heads, substantially as specified.

8. In a machine of the class described, a rotary basket having a socket at its periphery and arranged to turn about a horizontal axis whereby said socket may be placed in a horizontal plane, a perforated face-block mounted on the outer face of the socket, a follower arranged in opposition to the face-block, and means for exerting a fixed pressure upon the follower in the direction of the face-block.

9. In a machine of the class described, a rotary basket having sockets at its periphery, a horizontal axis or shaft supporting the hasket, a perforated face-block in each socket, a mold or box fitting the face-block, a perforated follower supported in opposition to the I face-block in each socket and free to move toward it, and means for exerting a fixed pres sure upon the follower in the direction of the face-block.

10. In a machine of the class described, a

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rotary frame, a horizontal shaft supporting pressure upon its contents when in place ina the frame, supports on the frame forming a socket in the frame.

socket whereby a mold may be held normal to the radius of the frame, a mold with per- 1 EDWIN ALVORD'W 5 forated faces and fitting said socket in the Witnesses:

frame, afollower back of the mold-socket, and H. R. WILLIAMS,

means for clamping the mold and exerting V. R. HOLCOMB.

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