US57128A - Improved brick-machine - Google Patents

Description

UNITED STATES PATENT OFFICE.

ENOCH HALLETT, OF HILLSDALE, MICHIGAN.

IMPROVED BRICK-MACHINE.

To all whom 'it may concern:

Be it known that I, ENOGH HALLETT, of Hillsdale, in the county of Hillsdale and State of Michigan, have invented a new and Improved Brick-Machine; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming a part of this specification, in which- Figure l is a side view of my invention; Fig. 2, a longitudinal vertical section of the same taken in the line .fr Fig. I; Fig. 3, a transverse vertical section of the same taken in the line a: x, Fig. 2.

Similar letters of reference indicate like parts.

This invention relates to a new and useful arrangement of levers for operating the follower by which the clay is pressed into the molds, and a peculiar construction of the clayguides, as hereinafter shown and described, whereby the pressure is rendered uniform over the whole length of the molds and perfect bricks formed throughout or in all the compartments of the mold.

The invention also relates to a novel manner of arranging the mold-carriage and operating the same in connection with the follower, as hereinafter set forth.

A represents a framing, which may be constructed in any proper manner to support the working parts, and B is a shaft passed horizontally in the lower part of the framing A, and having four segments, C C D D, keyed or otherwise secured upon it, the segments D D being considerably smaller than the segments C O, as shown in Figs. l and 2.

D represents the press-box, and E a chamber leading from the mud-mill into the pressbox. F is a follower or plunger, which works in the press-box and is connected by uprights a to a horizontal bar, G, the ends of which have pendent bars H H attached, the lever end of H H being connected by a bar, I. This bar I has two chains, J J, attached to it, said chains passing over pulleys K K at the ends of the framing A, and secured to the smaller segments D D.

L represents a carriage, which is mounted ou four wheels, M, the latter running on two ways, N N, secured to parallel bars O O, the ends of which are framed into head-pieces P I), which may be adjusted higher or lower by means of keys b. (Shown in Fig. 3.) This carriage L is connected by chains Q Q to the larger segments C C on the shaft B, the chains Q being connected to the outer end of the carriage and the chains Q connected to the inner end, and said chains attached to opposite sides of the segments. (See Figs. l and 3.)

The bar G has a lever, B, connected by a fulcrum-pin, c, and this lever is tted at one end in a link, S, attached to the framing A,

the opposite end of said lever, being connected,

by a rod, d, with a hand-lever, T, which is attached to a rod, U, secured to the lower part of the framing A.

V is the brick-mold, constructed in the usual way and fitted in the carriage L, and W is a guide fitted in the bottom of the press-box D. This guide is ofmetal, of rectangular form, and having cross -bars e within it of inverted V form in their transverse section. These crossbars are not at equal distances apart. Those at the center are nearer together than those at the ends, in order to Vadmit of the spaces over the end compartments of the brick-mold being rather larger than over the center, (see Fig. 2,) in which the larger spaces in the guide are designated by a and the smaller spaces by a. By this arrangement the end compartments in the brick-mold will have an excess of clay over them, and when the follower F is pressed down the clay will be forced into the end compartments of the mold with equally as great a pressure as it is forced into the central compartments, and consequently the bricks will be pressed uniformly throughout.

When the carriage L is drawn inward and the empty mold is under the press-box D the follower F is pressed or forced down by actuating the lever T, and a very considerable leverage power is obtained, sufficient to cause the follower or plunger to press and compact the clay firmly into `all the compartments of the molds. With the ordinary brick-presses the end compartments of the mold are not sufficiently pressed in consequence of the clay adhering to the ends of the press-box, a difficulty fully obviated by having theenlarged spaces a in the guide W, as described.

By the arrangement of the levers R T, connected with the bar Gr of the follower F, as

shown, a lgood leverage power is obtained with but little loss by friction, andk the parts.

Work smoothly and Well.

The brick-mold is moved underneath the press-box and out from underneath the same by operating the carriage'L; which is done by turning the shaft B first in one direction and then in the other, the follower F being raised simultaneously into the outward movement of the carriage by means of the chains J J and segments D D, and the carriage L being moved by the chains Q Q and segments C O.

ating the mold-carriage L and follower F, as set forth.

ENOGH HALLETT.

Witnesses: l

111K. PENNELL, DANL. L. PRATT.

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