IMPROVE. MENTS IN MASTICATORS OR APPARATUSES FOR PREPARING GUTTA-PERCHA. CAOUT. CHOUC. AND OTHER SIMILAR SUBSTANCES
Year: 1861

page_text: LETTERS PATENT to Edwin Thomas Truman, of Old Burlington Street,
in the County of Middlesex, Surgeon, for the Invention of "IMPROVE.
MENTS IN MASTICATORS OR APPARATUSES FOR PREPARING GUTTA-PERCHA. CAOUT.
CHOUC. AND OTHER SIMILAR SUBSTANCES."
Sealed the 12th September 1861, and dated the 14th March 1861.
PROVISIONAL SPECIFICATION left by the said Edwin Thomas Truman
at the Office of the Commissioners of Patents, with his Petition, on
the 14th March 1861.
I, EDWIN THOMAS TRUMAN, of Old Burlington Street, in the County of
Middlesex, Surgeon, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN MASTICATORS OR APPARATUSES FOR PREPARING GUTTA-PERCHA,
CAOUTCHOUC. AND OTHER SIMILAR SUBSTANCES," to be as follows:-
My Invention consists in substituting for the solid roller or rollers now
used in masticators an axle or spindle furnished with arms which project
from it inside the case and carry a roller or bar which is so adjusted that
there is space between it and the axle, and also between it and the inside of
the masticator case; the roller or bar is made to revolve with the spindle. In-
stead of one roller or bar I sometimes use two or more, and increase the
number of arms, or fix discs on the axle for carrying them.
Price 8d.1
Again, for some

page_text: purposes I employ a skeleton drum with a central spindle, the blades of which
are fixed or are free to revolve in the bearings whereby they are connected to
the central spindle.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Edwin Thomas Truman in the Great Seal Patent Office
on the 14th September 1861.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWIN
THOMAS TRUMAN, of Old Burlington Street, in the County of Middlesex,
Surgeon, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fourteenth day of March in the year of our Lord One
thousand eight hundred and sixty-one, in the twenty-fourth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Edwin Thomas Truman, Her special licence that 1, the said Edwin
Thomas Truman, executors, administrators, and assigns, or such others as
1, the said Edwin Thomas Truman, 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
night 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 MASTICATORS OR APPARATUSES FOR PREPARING GUTTA-PERCHA
CAOUTCHOUC. AND OTHER SIMILAR SUBSTANCES," upon the conditions (amongst others)
that I, the said Edwin Thomas Truman, 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 imme-
diately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Edwin Thomas Truman, do hereby declare
the nature of my said Invention, and in what manner the same is to be per-
formed, 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:
My Invention consists in substituting for the solid roller or rollers now
used in masticators an axle or spindle furnished with arms which project
from it inside the case and carry a roller or bar which is so adjusted that

page_text: there is space between it and the axle or spindle, and also between it and the
inside of the masticator case; the roller or bar is made to revolve with the
axle or spindle. Instead of one roller or bar I sometimes use two or more
and increase the number of arms or fixed discs on the axle or spindle for carrying
the rollers or bars.
Again, for some purposes I employ a skeleton drum with a central spindle,
the blades of which are fixed or are free to revolve in the bearings whereby
they are connected to the central spindle.
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that I claim constructing
masticators or apparatuses for preparing gutta percha, caoutchouc, and other
similar substances with one or more bars or rollers made to revolve with a
central spindle or axle and between it and the case, and the employment in
such masticators or apparatuses of one, two, or more of such central spindles
fitted with one or more bars or rollers.
In witness whereof, 1, the said Edwin Thomas Truman, have hereunto
set my hand and seal, this Fourteenth day of September, One thousand
eight hundred and sixty-one.
EDWIN THOS. TRUMAN. (L.S.)