IMPROVEMENTS IN Dan Drama DULCEMAKING MiGUINDO
Year: 1880

page_text: LETTERS PATENT to John Snape and John Abraham Noel, both of Aberaman
Works, near Aberdare, South Wales, for an Invention of "IMPROVEMENTS IN
Dan Drama DULCEMAKING MiGUINDO”
PROVISIONAL SPECIFICATION left by the said John Snape and John
Abraham Noel at the Office of the Commissioners of Patents on the 14th May
1880.
JOHN SNAPE and JOHN ABRAHAM NOEL, both of Aberaman Works, near
Aberdare, South Wales. "IMPROVEMENTS IN THE DIES OF PLASTIC BRICKMAKING
MACHINES."
With the object of avoiding the cracks and badly defined edges and corners of
bricks as produced by lubricated dies, we adopt a metallic die, but having the taper
of its interior surfaces either planed or not planed and formed in opposite directions,
that is to say, the taper of the largest surface is contrary to that of the smallest
surface; by these means we produce a sharply defined corner and edge to the
issuing brick without the use of any lubricant whatever.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Snape and John Abraham Noel in the Great Seal Patent Office
on the 13th November 1880.
JOHN SNAPE and JOHN ABRAHAM NOEL, both of Aberaman Works, near
Aberdare, South Wales. "IMPROVEMENTS IN THE DIES OF PLASTIC BRICKMAKING
MACHINES."
Heretofore the issuing dies of brickmaking machines have been formed and
provided with a means of lubricating the clay as it passes through the die, such
lubrication being used for the preventing of cracking and splitting at the edges and
corners of the issuing bricks or clay shapes.
Now by our Invention the same machines are used, but in order to secure
sharply defined edges and corners and also a smooth surface to the issuing clay, we
adopt the use of dies made either of wood and inetal lined internally, or metal
exclusively and for ordinary purposes made of the form shown on Drawing No. 1,
where Figures 1 and 2 represent elevation, and Figure 3 a plan of such dies, and
from which it will be seen that we so arrange the internal taper that the resistance
is greater nearest the centre and least at the furthest from the centre of the issuing
bar of clay, and to further describe the arrangement by reference to Drawing No. 1,
Figure 3, it will be seen that the width of the die at "0" from A to A may be
increased or diminished, at the same time leaving the width at the delivery end
"O, O," from B to B undisturbed, but in all cases the taper is less at the surfaces
furthest from centre than it is nearest the centre of the die, and we avoid any
lubrication whatever by means of this adjustment of side taper. To suit the taper
of the remaining internal surfaces, and in cases where this amount of required
adjustment is known, the dies may be made solid and without the cotters K, K,
and loose adjustable sides or ends, as shown.
Where a variety of sections are required, we adopt the same foregoing means and
arrangements, but in addition we mount a tapered cutting and sleeking knife L of
any section or shape that may be required, secured in position by adjustable bolts
and nuts and slots M, M, as clearly shown on Drawing No. 2, Figures 4 and 5, thus
avoiding long surfaces for acute augles, and further providing a ready means of
producing irregular shaped bricks or slabs without any lubrication whatever, and
also without providing or changing the die where the size of such die would meet
the case.
Having now described the nature of our said Invention and in what manner the
same is to be performed, we declare that we claim,-
The improvements in the dies of plastic brickmaking machines, as hereinbefore
described and substantially as shown in the annexed Drawings.
In witness whereof, we, the said John Snape and John Abraham Noel, have
hereunto set our hands and seals, this Ninth day of November, One
thousand eight hundred and eighty.
JOHN SNAPE.
(L.S.)
JOHN ABRAHAM NOEL. (L.S.)