IMPROVEMENTS IN THE MANUFACTURE OF BRICKS OTHER ARTICLES FROM PLASTIC SUBSTAN
Year: 1864

page_text: LETTERS PATENT to Samuel Smith Anderson, of South Road, Bishop
Auckland, in the County of Durham, Brick and Tile Manufacturer,
for the Invention of "IMPROVEMENTS IN THE MANUFACTURE OF BRICKS,
Sealed the 4th April 1865, and dated the 24th October 1864.
PROVISIONAL SPECIFICATION left by the said Samuel Smith Anderson
at the Office of the Commissioners of Patents, with his Petition, on
the 24th October 1864.
I, SAMUEL SMITH ANDERSON, of South Road, Bishop Auckland, in the
County of Durham, Brick and Tile Manufacturer, do hereby declare the
nature of the said Invention of "IMPROVEMENTS IN THE MANUFACTURE OF BRICKS,
TILES, AND OTHER ARTICLES FROM PLASTIC SUBSTANCES," to be as follows:-
My Invention consists in the construction at the end of the pug mill
remote from that at which the raw material to be moulded is introduced, of
a cylindrical chamber whose diameter is less than that of the pug mill.
Within this chamber, and mounted upon the revolving shaft of the pug mill
(which shaft passes into the chamber) I place a double-threaded screw, large
enough to fill the area of the chamber, allowance being made for the rotation

page_text: of the screw within the chamber. This double-threaded screw receives the
clay or other plastic material from the pug mill (where it has been tempered),
and propels it in a straight and continuous stream through a die or dies fixed
at the end of the chamber remote from the pug mill.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Samuel Smith Anderson in the Great Seal Patent Office on
the 24th April 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SAMUEL
SMITH ANDERSON, of South Road, Bishop Auckland, in the County of
Durham, Brick and Tile Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fourth day of October, in the year of our
Lord One thousand eight hundred and sixty-five, in the twenty-eighth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Samuel Smith Anderson, Her special licence that I, the said
Samuel Smith Anderson, my executors, administrators, and assigns, or such
others as I, the said Samuel Smith Anderson, 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 THE MANUFACTURE OF BRICKS, TILES, AND
OTHER ARTICLES FROM PLASTIC SUBSTANCES," upon the condition (amongst
others) that I, the said Samuel Smith Anderson, by an instrument in
writing under my hand and seal, 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 Samuel Smith Anderson, 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 (that is to say) :-
My Invention consists in the construction at the end of the pug mill
remote from that at which the raw material to be moulded is introduced of a
cylindrical chamber whose diameter is less than that of the pug mill. Within
.
.

page_text: this chamber, and mounted upon the revolving shaft of the pug mill (which
shaft passes into the chamber) I place a double-threaded screw large enough
to fill the area of the chamber, allowance being made for the rotation of the
screw within the chamber. This double-threaded screw receives the clay or
other plastic material from the pug mill (where it has been tempered,) and
propels it in a straight and continuous stream through a die or dies fixed at
the end of the chamber remote from the pug mill.
In witness whereof, I, the said Samuel Smith Anderson, have here-
unto set my hand and seal, this Twenty-fourth day of April, in the
year of our Lord One thousand eight hundred and sixty-five.
SAMUEL SMITH ANDERSON. (L.B.)
Signed, sealed and delivered (being first
duly stamped) by the within-named
Samuel Smith Anderson, in the pre-
sence of
THOMAS THORNTON,
Solr.,
Bishop Auckland.