US576239A

US576239A - Brick-machine

Info

Publication number: US576239A
Authority: US
Publication date: 1897-02-02
Anticipated expiration: 1914-02-02

Description

(No Model.)

J. TEMPEST. BRICK MAQHINE.

Patented Feb. 2,1897.

UNITED STATES PATENT OFFICE.

J OI-IN TEMPEST, OF COURTNEY, PENNSYL IANIA.

BRICK-MACHINE.

SPECIFICATON forming part'of Letters Patent No. 576,239, dated February 2, 1897. Application led July 8, 1896. Serial No. 598,397. (No model.)

To if/ZZ whom, t may concern:

Be it known that I, JOHN TEMPEs'r, a resident of Courtney, in t-he county of Washington and State of Pennsylvania, have invented a new and useful Improvement in Brick-Machines; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to the manufacture of bricks, tiles, the.

In one of the processes now com mouly employed for the manufacture of bricks or tiles an iron mold open at both ends is employed, with reciprocating plunger-s adapted to enter said mold from both ends, whereby the clay within the mold is pressedto conform to the shape of said mold. A board is supported on the lower plunger, so that when the brick has been pressed and the upper plunger raised the lower plunger will raise the board carrying the brick to the upper end of the mold,

when said board is lifted from the plunger..

The brick thus formed is then dumped from said board onto a suitable drying-floor. Owing to the pressure which has been brought to bear upon the clay in the mold to compact it and press it into the form of a brick, the clay will adhere closely to the board, so that when it is desired to free said brick from the board great diiculty is experienced in freeing said brick without in some measure injuring the shape of same. The clay adheres so closely to the wood that it is necessary to shake or jar the brick severely in releasing it from the board. If the bricks are allowed to remain on the boards until they are dry,

they are liable to crack on their bottom faces in the process of drying. This is due to the fact that being pressed so close to the boards the bottom portionsof said bricks are not permitted to contract as freely as the upper, and consequently cracks are the result of this unequal contraction. Attempts have been made to obviate this by securing a metal plate to the upper surface of the board in order to present a smoother surface, but even then the brick would stick. The manufacture of bricks or tiles by this process, therefore, has been attended with great loss, while at the same time it has been impossible to count on a brick of perfect shape.

The object of my invention is to provide means whereby the bricks can be readily released from the boards Without shaking or jarring the same in such way as to mar their shape.

My invention consists, generally stated, in

lplacing a temporary bottom composed of a plate of metal or other suitable material on a portable board within the mold, compressing the clay upon said plate, removing said plate while the brick is still in the mold, whereupon the brick drops onto the board below. The brick thus rests lightly upon the board, having been already pressed to shape, so that when the board is lifted and carried away said brick can be easily disL charged from said board onto the drying-Hoor without in the least destroying its shape.

To enable others skilled in the art to make and use my invention, I will describe the same more fully, referring to the accompanying drawings, in Which- Figure l is a perspective View of suitable apparatus for carrying out my invention. '75

Fig. 2 is a vertical section showing the brick being compressed. Fig. 3 is a like view showing the plate removed and the lower plunger raised with the brick resting on the board. Fig. 4 is a plan view of the plate.

Like letters indicate like parts in each of the figures.

As the manner of operating the plungers and the mechanism form no part of my invention, I have not deemed it necessary to illustrate ordescribe such apparatus in detail.

The mold a is an ordinary rectangular castiron mold, open at both ends. Supported above the mold a on the frame bis the reciprocating plunger C, conforming in shape to the mold a and adapted to enter same from the upper end. Beneath the mold Ct is the reciprocating plunger cl, also conforming to the shape of the said mold and adapted to enter samefrom below. Resting upon the plunger d is the portable board or support e, preferably oak.

Formed in the front wall of the mold et is the slot f, adapted to receive the plate g, which may be formed of metal or other suit able material and which acts as a temporarv bottom for the mold. Vhen the plunger d is lowered, the plate g rests upon the portable support c. To provide for the insertion or withdrawal of the plate g, said plate is secured to the lever h, pivoted at its lower end, so that by grasping the upper end of said lever and moving it back and forth said plate is inserted or withdrawn.

The apparatus being in the position shown in Fig. l, the plastic clay or composition from which the bricks are to bc formed is introduced into the mold a. This clay falls upon the temporary bottoni or plate g. The plunger c is then lowered and the clay is compressed to form the brick in the mold. The operator then grasps the lever 7L and withdraws the plate g. This permits the brick to drop onto the support c.. Just as soon as the plate g has been withdrawn the plunger c is raised, and at the same time the plunger d. The plunger d raises the support e, carrying the newly-formed brick, resting lightly thereon, to the position shown in Fig. 3. The portable support is then removed and the brick can be easily discharged therefrom onto the drying-floor.

By the use of my invention there is no liability of the brick adhering to the board when it is dumped therefrom, but as the brick has been pressed on the plate and the plate withdrawn the brick does not have opportunity to stick to the board. More perfect bricks can be formed by the use of my invention and all waste is practically avoided.

While my invention is applicable to all forms of bricks, yet it is of special advantage where employed for forming bricks and tiles for steelfurnaces.

Vhat I claim as my invention, and desire to secure by Letters Patent, is-

l. In brick-making apparatus, the combination of a mold, a removable plate, means for compacting the clay on said plate within v able plate on said support, substantially as set forth.

4. In brick-making apparatus, the combination of a mold open at both ends, plungers adapted to enter said Inold from each end, a support on the lower plunger, and a sliding plate on said support, substantially as set forth.

5. In brick-making apparatus, the combination of a mold open at both ends and having a slot formed in its walls, a sliding plate fitting in said slot, plungers adapted to enter said mold from each end, and a support on the lower plunger, substantially as set forth.

6. In brick-making apparatus, the combination of a mold open at both ends and having a slot formed in its walls, a sliding plate fitting in said slot, a lever connected to said plate, plungers adapted to enter said mold from cach end, and a support on the lower plunger, substantially as set forth.

In testimony whereof I, the said JOHN TEMPEsT, have hereunto set my hand.

JOHN TEMPEST.

IVitn esses:

ROBERT C. ToT'rEN, WALTER FAMARIss.