Improvements in the Manufacture of Bricks and in Machinery or Apparatus therefor.
Year: 1889

page_text: Date of Application, 16th May, 1889-Accepted, 29th June, 1889
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Improvements in the Manufacture of Bricks and in Machinery or
Apparatus therefor.
We, THOMAS HUGHES DELABERE MAY, of Montpelier House, Lansdowne Road,
Bath, in the county of Somerset, gentleman, and HENRY ALFRED BROWN, of
12 Aberdeen Terrace, Upper Easton, St. Georges, near Bristol, engineer, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:
This invention relates to the manufacture of bricks, and consists, firstly, in
dividing by vertical partitions the die through which the clay passes, so that three
or more bricks are expressed at a time from the die instead of one only, as heretofore.
Between the divided die and the pug mill is a mouth-piece within a casing secured
to the mill and to the divided die. The bricks issue from the die having their short
sides horizontal instead of vertical.
The invention consists, secondly, in improved provision for lubricating the plastic
clay as it passes through the dic. An annular space intervenes between the
interior of the casing aforesaid and the exterior of the mouth piece, and to this
space oil or other lubricant is supplied from a pipe and flows on to the clay as it
enters the divided die the inner end of which is conical.
This invention consists, thirdly, in the adoption of rollers as guides for the clay as
it issues from the die. The rollers are vertically disposed at each side of the mouth
of the die.
Referring to the accompanying sheet of drawings, Fig. 1 represents a plan,
Fig. 2 an end view, Fig. 3 a sectional plan and Fig. 4 a vertical section of a
divided die a, casing 6 and mouth-piece or sleeve c arranged in accordance with this
invention.
The sleeve c and casing bare both bolted to the usual pug mill (not shown).
Between the exterior of the sleeve c and the interior of the casing is an annular
space d into which oil or other lubricant is supplied by the pipe c.
The die a is widened at the inner end to facilitate lubrication of the clay.
The die a is furnished with partitions a' by which the stream of clay coming from
the mill is divided.
The die shown in the drawing is arranged to divide the stream of clay vertically
into three equal parts corresponding to the width of three bricks.
More than two partitions may, however, be employed. The bricks issue with their
short sides horizontal instead of vertical, as heretofore.
in the sleeve c are fitted perforators of the usual kind for producing perforated
bricks when such are required.
1
The perforators are not employed when solid bricks are being made.
At each side of the mouth of the die a are fitted rollers g supported in brackets h
fixed outside the die. These rollers serve as guides to direct the divided stream of
clay as it travels to the cutting-off table.
said
Having now particularly described and ascertained the nature of our
invention, and in what manner the same is to be performed, we declare that what
we claim is —
C
1. In the manufacture of bricks, the use of a divided die such as a having partitions
such as a whereby the stream of clay as it passes to the cutting-off table is divided
vertically into divisions each of which corresponds to the width of a brick, sub-
stantially as hereinbefore described.

page_text: 2. The sleeve c placed within the casing
between the interior of which and the
exterior of the sleeve is an annular space such as d for oil or other lubricant, sub-
stantially as herein before described.
3. The provision of a widened inner end to the die a to afford an abundant supply
of the lubricant to the stream of clay as it enters the die, as above set forth.
4. In the manufacture of bricks, the use of rollers vertically, disposed at each side
of the mouth of the die for guiding the stream of clay to the cutting-off table, as
hereinbefore described.
Dated this 15th day of Nov 1990
NICHOLAS WATTS,
Applicants' Agent.