IMPROVEMENTS IN BRICK-MAKING MACHINES
Year: 1867

page_text: ETTERS PATENT to Alexander Clark, of Rathbone Place, in the County
of Middlesex, Executor of William Clark, late of 53, Chancery Lane,
in the County of Middlesex, Engineer and Patent Agent (deceased),
for the Invention of "IMPROVEMENTS IN BRICK-MAKING MACHINES."--A
communication from abroad by John Scott Meredith and John Hanson
Mitchell, both of Baltimore, in the State of Maryland, United States of
Amanice
PROVISIONAL SPECIFICATION left by the said William Clark at the Office
of the Commissioners of Patents, with his Petition, on the 10th May
1867.
I, WILLIAM CLARK, of 53, Chancery Lane, in the County of Middlesex,
Engineer and Patent Agent, do hereby declare the nature of the said
"IMPROVEMENTS IN BRICK-MAKING MACHINES," to be as
Invention for
follows:-
This Invention relates to certain new and useful improvements in brick-
making machinery for which Letters Patent were granted to William Edward
Newton, bearing date the Twenty-first day of Nóvember 1859, and numbered
2633.

page_text: The Invention consists in a modification of the construction of the framing
of the machine,
as herein-after fully shown and described, whereby the device
is rendered much more compact than hitherto, and a more favorable arrange-
ment of the working parts obtained.
The Invention also consists in a novel arrangement for crushing or
pulverizing the clay, consisting of two rollers operating with different degrees
of speed, whereby a combined crushing and grinding action is obtained which
renders the operation of the rollers very efficient.
In the accompanying Sheet-of-Drawings Figure 1 is a side view of this
Invention, the pulverizing or crushing device being shown in section; Figure 2
à transverse vertical section of the same taken in the line x, x, Figure 1;
Figure 3 a vertical section of a portion of the same taken in the line-y,y,
Figure 2. Similar letters of reference indicate corresponding parts.
The frame A of the machine is constructed with a semicircular top or
upper part a, as shown clearly in Figure 1, said part a conforming to the
shape of the moulding wheel B, which is substantially the same as shown and
described in the original Letters Patent: The moulding wheel is provided
with a series of moulds b which open towards a common centre, but have
their sides straight or at right, angles with the inner face of plungers C which
form the bottoms of the moulds. The same arrangement of pressing roller D
is employed as .in, the original machine, and in fact the principle of the whole
moulding and pressing operation is substantially the same as that in the
original machine, and, therefore does not require a special description. The
original machine was however exceedingly cumbersome, a rectangular frame
being employed, and the construction and arrangement of parts such that
the endless discharging belt could not be carried or extended through the
moulding wheel.
By this improvement: it will be seen by referring to Figure 2 that the
endless belt E passes entirely through the moulding wheel B, and with the
moulding wheel B and elevators F may be driven by a very compact arrange-
ment of gearing. The crushing or pulverizing attachment is composed of
two rollers G, G¹, of equal diameter, over which a hopper is placed to
-receive the clay and conduct it to the rollers. These rollers are connected
at one end by gears I, I', one of which I is smaller than the other-I,-so-that
one roller will have a higher rate of speed than the other. Owing to this
difference of speed between the two rollers' a combined crushing and grinding
action is obtained which is very efficient in pulverizing the clay. By an equal
rotating movement of the two rollers a crushing action would only be obtained,
but by a differential movement a combined crushing and grinding action is

page_text: SPECIFICATION filed in pursuance of the conditions of the Letters Patent,
and of an Order of the Lord Chancellor, by the said Alexander Clark in
the Great Seal Patent Office on the 13th December 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALEXANDER.
CLARK, of Rathbone Place, in the County of Middlesex, Executor of William.
Clark, late of 53, Chancery Lane, also in the County of Middlesex, who
departed this life on the 26th September 1867, send greeting.
.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters.
Patent, bearing date the Tenth day of May, in the year of our Lord.
One thousand eight hundred and sixty-seven, in the thirtieth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto him, the
said William Clark, Her special licence that he, the said William Clark, his
executors, administrators, and assigns, or such others as be, the said William
Clark, his executors, administrators, and assigns, should at any time agree;
with, and no others, from time to time and at all times thereafter during
the term therein expressed, should and lawfully might make, 'use, exercise,
and vend, within the United Kingdom of Great Britain and Ireland, the.
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN BRICK-
MAKING MACHINES," a communication to. him from abroad by John Scott;
Meredith and John Hanson Mitchell, both of Baltimore, in the State of
Maryland, United States of America, upon the condition (amongst others).
that he, the said William Clark, his executors or administrators, by an
instrument in writing under his, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said Invention,
and in what manner the same was to be performed, and cause the same to be.
filed in the Great Seal Patent Office within six calendar months, next and
immediately after the date of the said Letters Patent.
"
NOW KNOW YE, that I, the said Alexander Clark, as such Executor as
aforesaid, do hereby declare the nature of the said Invention, and in what
manner the same is to be performed, to be particularly described and
ascertained in and by the following statement, reference being had to the
Sheet of Drawings hereunto annexed, and to the letters and figures marked.
thereon (that is to say) :-
:-'
This Invention relates to certain new and useful improvements in a brick-

page_text: making machine for which Letters Patent were granted to William Edward
Newton, dated November 21st, 1859, and numbered 2633.
The Invention consists in a modification of the construction of the framing
of the machine, as herein-after fully shown and described, whereby the device
is rendered much more compact than hitherto, and a more favorable arrange-
ment of the working parts obtained. The same machine is also applicable to
moulding peat, fine coal, and other agglomerated substances.
I will describe the Invention as applied to brick making only, its
application to other purposes being easily understood without further
explanation.
The Invention also consists in a novel arrangement for crushing or pulverizing
the clay, consisting of two rollers operating with different degrees of speed,
whereby a combined crushing and grinding action is obtained which renders
the operation of the rollers very efficient.
In the accompanying Sheet of Drawings Figure 1 is a side view of this
Invention, the pulverizing or crushing device being. shown in section;
Figure 2, a transverse vertical section of the same taken in the line x, x,
Figure 1 Figure 3, a vertical section of a portion of the same taken in
the line y, y, Figure 2. Similar letters of reference indicate corresponding.
parts:
The frame A of the machine.is constructed with a semicircular top or upper
part a, as shown clearly in Figure 1, said part a conforming to the shape of
the moulding wheel B, which is substantially the same as shown and described
in the original Letters Patent, No. 2633, dated. November 21st, 1859. The
moulding wheel is provided with a series of moulds b which open towards a
common centre, but have their sides straight or at right angles with, the inner
face of plungers C which form the bottoms of the moulds. The same arrange-
ment of pressing roller D is employed as in the original machine, and in fact
the principle of the whole moulding and pressing operation is substantially the
same as that in the original machine, and therefore does not require a special
description.
The original machine.was however exceedingly cumbersome, a rectangular
frame being employed, and the construction and arrangement of parts such
that the endless-discharging belt.could not be carried or extended through the
moulding wheel..
By this improvement it will be seen by referring to Figure 2 that the
endless belt E passes entirely through the moulding wheel B, and with the
moulding wheel B and elevators F may be driven by a very compact arrange-
ment of gearing. The crushing or pulverizing attachment is composed of two

page_text: rollers G, G', of equal diameter, over which a hopper H is placed to receive
the clay and conduct it to the rollers. These rollers are connected at one end
by gears I, I, one of which, I, is smaller than the other, I', so that one roller
will have a higher rate of speed than the other. Owing to this difference of
speed between the two rollers a combined crushing and grinding action is
obtained which is very efficient in pulverizing the clay. By an equal rotating
movement of the two rollers a crushing action would only be obtained, but
by a differential movement a combined crushing and grinding action is
obtained. The pulverized clay is conveyed by an inclined spout J to the
elevator F, which conducts the clay as usual to the moulding wheel.
Having described the nature of this Invention, and the manner of performing
the same, I declare that what I claim as the Invention to be protected by the
herein-before in part recited Letters Patent is,
First, constructing the frame A with a semicircular top a when said frame
is used in connection with a moulding wheel B arranged concentric with the
upper semicircular part of the frame, substantially as and for the purpose set
forth.
Secondly, the crushing or pulverizing device composed of the two rollers G, G¹,
rotating with different speeds or at different degrees of velocity, substantially
as and for the purpose specified.
In witness whereof, I, the said Alexander Clark, as such Executor aforesaid,
have hereunto set my hand and seal, this Twelfth day of December, in
the year of our Lord One thousand eight hundred and sixty-seven.
ALEX. CLARK. (L.S.)
ALEXR. CLARK. (L.S.)