Improvements in Plastic Brick-making Machines.
Year: 1890

page_text: Date of Application, 22nd Nov., 1890
Complete Specification Left, 22nd Aug., 1891-Accepted. 10th Oct.. 1891
PROVISIONAL SPECIFICATION.
Improvements in Plastic Brick-making Machines.
1, WILLIAM STEVENSON of 43 Annette Street, Govanhill, in the County of
Lanark, North Britain, Brickmaker do hereby declare the nature of this invention
to be as follows:-
This invention relates to improvements in plastic brick making machines and
consists in so constructing the machine that in place of one brick being delivered
at a time, two or more are. This is accomplished by having two or more boxes of
the length, breadth, and a little greater than the thickness of an ordinary brick on
the same side of the pug mill from which the clay issues. A.corresponding number
of pistons stands immediately above the boxes and press the clay from these boxes
on to a travelling slide also with a corresponding number of recesses of the same
dimensions as the brick, and the travelling slide moves forward till it comes under a
second set of pistons which press out the bricks on to a board underneath, or they
may be repressed into the same number of other boxes with moveable bottoms to
lift them up when the slide has returned to receive a second supply of bricks and
when the slide again comes forward with the second supply of bricks it pushes those
bricks which have been repressed on to a board.
Dated this 21st day of November 1890.
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Agents.
COMPLETE SPECIFICATION.
Improvements in Plastic Brick-making Machines.
I, WILLIAM STEVENSON, of 43 Annette Street, Govanhill, in the County of
Lanark, North Britain, Brickmaker, do hereby declare the nature of this invention
and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
My invention relates to improvements in plastic brick-making machines, and
consists in so constructing the machine that in place of one brick being delivered
at a time, two or more arc. This is accomplished by having two or more boxes of
the length, breadth, and a little greater than the thickness of an ordinary brick on
the same side of the pug mill from which the clay issues. A corresponding number
of pistons stand immediately above the boxes and press the clay from these boxes
in to a travelling slide, also with a corresponding number of recesses of the same
dimensions as the brick, and the travelling slide moves forward till it comes under
a second set of pistons which press out the bricks on to a board underneath, or they
may be repressed into the same number of other boxes with moveable bottoms to
lift them up when the slide has returned to receive a second supply of bricks, and
when the slide again comes forward with the second supply of bricks it pushes
those bricks which have been repressed on to a board.
In order that my invention inay be properly understood and readily carried
into effect I have hereunto appended two explanatory sheets of drawings, in the
several figures of which corresponding parts are marked with the same letters of
reference.
Figure 1 is a part section and part front elevation.
T

page_text: the cam E which keyed to the first motion shaft F, and by the crauk I which is
keyed to the shaft F, engaging with a lever H connected to the pistons C. As the
pistons C fall they press the clay from these boxes on to a travelling slide G,
having a corresponding number of recesses to the pistons C. The pistons are then
raised by means of the cam E. When the pistons C are in a level with the top of
the travelling slide G, the travelling slide is free to move, and is moved by means of
the levers L, M, N, O until the recesses come beneath the second set of pistons C',
when these pistons C", which are carried on the shaft F2, fall by means of the cam P
keyed to the shaft, thus causing the bricks to pass from the recesses in the
travelling slide G into corresponding receptacles Q immediately underneath. The
pistons are then raised by means of the cam P. When the pistons C¹ are in a
level with the travelling slide G the slide returns to its first position by the travel
of the crank I and levers L M N O. While the travelling slide G is returning to
its first position the pistons C' again fall by means of the cam P, and by the crank I',
which is keyed to the shaft F, engaging with the lever H, and compress the
bricks in the boxes Q. The shaft F receives its motion by means of toothed
wheels as shown. The pistons Care again raised by means of the cam P, and a
third set of pistons C² also rise by means of the hollow cam P, also keyed to the
shaft F, and push up the bricks to the level of the bottom of the slide G, as seen
in Figure 2. While this operation is taking place the travelling slide G has been
again charged with clay, and is on its travel forward with the second supply when
it reaches the bricks just finished, and it moves then along until the recesses in the
travelling slide G are opposite the second set of pistons C', and the second set of
bricks are delivered from the travelling slide and compressed as already described,
the completed bricks being delivered on to a suitable tray.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
The general arrangement and combination of the several parts constituting the
improved brick-making machine operating in the manner substantially as described
and shown on the accompanying sheets of drawings.
Dated this 20th day of August 1891.
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Agents.
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Agents.