IMPROVEMENTS IN MACHINERY OR APPARATUS FOR THE MANUFACTURE OF BRICKS, TILES, AND OTHER ARTICLES FROM PLASTIC BODIES OR MATERIAL
Year: 1872

page_text: LETTERS PATENT to William Parkinson Garbutt, of Kingston-upon-
Hull, in the County of York, Brick and Tile Maker, for the
Invention of "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR THE
MANUFACTURE OF BRICKS, TILES, AND OTHER ARTICLES FROM PLASTIC BODIES
OR MATERIAL."
•
Sealed the 25th March 1873, and dated the 5th December 1872.
PROVISIONAL SPECIFICATION left by the said William Parkinson
Garbutt at the Office of the Commissioners of Patents, with his
Petition, on the 5th December 1872.
I, WILLIAM PARKINSON GARBUTT, of Kingston-upon-Hull, in the
County of York, Brick and Tile Maker, do hereby declare the nature
of the said Invention for "IMPROVEMENTS IN MACHINERY OR- APPARATUS FOR
THE MANUFACTURE OF BRICKS, TILES, AND OTHER ARTICLES FROM PLASTIC BODIES
OR MATERIAL," to be as follows:-
This Invention relates to the construction and arrangement of
machinery or apparatus for the manufacture of bricks, tiles, pipes, floor
paving slabs, and other similiar articles from plastic bodies or material,

page_text: and consists mainly in arranging upon or in connection with the shaft
of a pug mill, a cam or its equivalent for communicating a to-and-fro
movement through double ended levers, links, or connecting rods, to one
or more pistons within a box or cylinder attached to the bottom of a
cylinder or casing, and also to slides for cutting off the supply of clay
or other body while the pressure of the piston is forcing the clay into
and through the mouth on to rollers or other appliances upon which the
clay is divided into the required sizes or blocks.
The working face of the cam if a cam be employed is of spiral form,
and its rotation causes the double ended levers, links, or connecting rods
to move the pistons and the slides to move towards each other and away
from each other at the same time, in order that when the apertures
which the slides cover at times are open, the clay can be forced through
them by the pug blades into the piston boxes to be afterwards
acted upon by the pistons, the slide apertures being closed during that
operation.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Parkinson Garbutt in the Great Seal
Patent Office on the 5th June 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
PARKINSON GARBUTT, of Kingston-upon-Hull, in the County of York,
Brick and Tile Maker, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Let-
ters Patent, bearing date the Fifth day of December, in the year of
our Lord One thousand eight hundred and seventy-two, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said William Parkinson Garbutt, Her special
licence that I, the said William Parkinson Garbutt, my executors,
administrators, and assigns, or such others as I, the said William
Parkinson Garbutt, my 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 MACHINERY OR APPARATUS FOR THE

page_text: MANUFACTURE OF BRICKS, TILES, AND OTHER ARTICLES FROM PLASTIC BODIES OR
MATERIAL," upon the condition (amongst others) that I, the said
William Parkinson Garbutt, my executors or administrators, by an
instrument in writing under my, 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 William Parkinson Garbutt, do
hereby declare the nature of my said Invention, and in what manner
the same is to be performed, to be particularly described and ascertained
in and by the following statement thereof, reference being had to the
Drawings hereunto annexed, that is to say :-
This Invention relates to the construction and arrangement of
machinery or apparatus for the manufacture of bricks, tiles, pipes, floor
paving slabs, and other similar articles from plastic bodies or material,
and consists mainly in arranging upon or in connection with the shaft
of a pug mill, a cam or its equivalent for communicating a to-and-fro
movement through double ended levers, links, or connecting rods, to one
or more pistons within a box or cylinder attached to the bottom of a
cylinder or casing, and also to slides for cutting off the supply of clay or
other body while the pressure of the piston is forcing the clay into and
through the mouth on to rollers or other appliances upon which the
clay is divided into the required sizes or blocks.
The working face of the cam if a cam be employed is of spiral form,
and its rotation causes the double ended levers, links; or connecting
rods to move the pistons and the slides to move towards each other and
away from each other at the same time, in order that when the apertures
which the slides cover at times are open, the clay can be forced through
them by the pug blades into the piston boxes, to be afterwards
acted upon by the pistons, the slide apertures being closed during that
operation.
My Invention will be well understood by reference to the accompany.
ing Drawings, in which Figure 1 is a side view of the apparatus
complete: while Ficures 2 and 3 are views of the spirally faced cams

page_text: A is the cam mounted upon the shaft B of a pug mill C, and as the
cam is carried round by the rotation of the shaft, the roller D at the
upper end of the double ended lever E presses against the spiral face
of the cam and communicates a reciprocating movement to the lever.
This lever E is kept in its proper course by the slide P pivotted at the
point F by means of a band or projection G supported upon the exterior
of the pug mill, and to its other end is fastened the piston rod H
attached to a piston working in the box J which receives the worked up
clay or material from the pug mill. The entry of the clay into the
box J is regulated by means of a slide alternately opened and closed
through the action of the levers K, which in their turn receive their
motion from the rod L which is jointed to the reciprocating lever E just
beneath the roller D. The lever K and the rod L are supported upon
the framework Q. The actions of the piston and slide are so arranged
in relation to one another, that the slides are open for the reception of
clay from the pug mill into the box J during the time that the piston
is making its backward stroke, while on the other hand it is closed
while the piston is making its forward stroke which forces the clay in a
compact mass through the mouth or die O of the box on to the table M
where the bricks, tiles, or other articles are formed. The apparatus for
dividing the strip of clay for forming the bricks or other similar articles
from the clay, on its leaving the box forms no part of my Invention,
but in the Drawings I have shown a convenient arrangement which is
in very general use at the present time. The table M is provided with
a number of rollers N over which the clay slides as it is fed by the
successive strokes of the piston until it arrives at the end, the workman
then brings the frame Q formed of wires and connected to one side of
the table in a diagonal direction over the clay, when the latter is at once
divided

page_text: First. The machinery or apparatus for the manufacture of bricks,
tiles, and other articles from plastic bodies or material, arranged as
herein-before described and shown in the accompanying Drawings.
And, secondly. The employment of the spirally faced cams, as shown
separately in Figures 2 and 3 of the accompanying Drawings, in
machinery or apparatus for the manufacture of bricks or other articles
from plastic bodies.
Thirdly. The arrangement and action as hercin-before described of
appliances for opening and closing apertures in a pug mill, and also
for forcing plastic bodies from the pug mill through a dic, as set
forth.
In witness whereof, I, the said William Parkinson Garbutt, have
hereunto set my hand and seal, this Fourth day of June One
thousand eight hundred and seventy-three.
W. P. GARBUTT. (L.S.)