IMPROVEMENTS IN THE SUSPENSION ROASTING JACK
Year: 1855

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LETTERS PATENT to William Symons; Jack Maker, of Tavistock, in the <>
County of Devon, for the Invention of "IMPROVEMENTS IN THE SUSPENSION
ROASTING JACK."**
Sealed the 20th May 1856, and dated the 24th December 1855.
PROVISIONAL SPECIFICATION left by the: said William Symons at the
Office of the Commissioners of Patents,; with his Petition on the 24th.
December 1855..
I, WILLIAM SYMONS, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN THE SUSPENSION ROASTING JACK" to be as follows:-
This Invention consists in this, that instead of the pinion to which the meat
is hung being worked in connection with the ground and crown wheel, as
in the old suspension jack, I hereby provide an additional pinion for the
purpose of working the ground wheel only and carrying the meat, whereby I.
obviate the objection that as the mechanism gets worn by the weight of the
meat the workings draw away one from the other; whereas by the adoption of
this Invention, this additional pinion, which has nothing to do but work in the
ground wheel and carry the meat, is not liable to the objection aforesaid.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Symons in the Great Seal Patent Office on the
23rd June 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
SYMONS, Jack Maker, of Tavistock, in the County of Devon, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fourth day of December, in the year of our
Lord One thousand eight hundred and fifty-five, in the nineteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said William Symons, Her special licence that I, the said William Symons,
my executors, administrators, and assigns, or such others as I, the said William
Symons, 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 SUSPENSION
ROASTING JACK, upon the condition (amongst others) that I, the said William
Symons, 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 Symons, 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 (that is to say) :-
The nature of the said Invention, which has already been described in and
by the Provisional Specification filed on application for the said Letters
Patent, I hereby in compliance with the said condition therein contained
(again) and particularly describe and ascertain to be, that my improvements
in the suspension roasting jack worked by spring power consist in this, viz.,
that instead of the pinion to which the meat is hung working in connection
with the ground and crown wheels, as in the old suspension jack, I have an
additional pinion working with the ground wheel only and carrying the meat
whereby I obviate the objection that as the mechanism gets worn by the
weight of the meat the workings draw away one from the other; whereas by
the adoption of this Invention, this additional pinion, which has nothing to do

page_text: but work in the ground wheel and carry the meat, is not liable to the objection
aforesaid.
Having thus particularly described and ascertained the nature of my said
Invention, I now proceed to describe and ascertain in what manner the same
is to be performed or put in practice, wherein I shall refer to the accom-.
panying Drawing by the words, figures, and letters marked thereon and herein
referred to, that is to say:-
DESCRIPTION OF THE DRAWING.
The Drawing shews a perspective view of a suspension roasting jack to be
worked by spring power with this Invention applied thereto. As it will be
unnecessary to describe the old and well-known portions of the mechanism
(which are shewn in the Drawing), it is only necessary to add, that in the
accompanying Drawing, A marks the additional pinion (working with the
ground wheel) upon the suspension rod for carrying the meat, and B marks
the said rod.
Having now particularly described and ascertained both the nature of my
said Invention, and in what manner the same is to be performed or put in
practice, I hereby declare that what I claim as the Invention, whereof the
exclusive use, benefit, and advantage were granted to me by the aforesaid
Letters Patent, consists in the adaptation to and use in the before-described
suspension roasting jack of the additional pinion working with the ground
wheel only, as herein-before set forth.
In witness whereof, I, the said William Symons, have hereunto set my
hand and seal, this Nineteenth day of June, in the year of our Lord
One thousand eight hundred and fifty-six.
Witness'd by
ROGER PALMER.
WILLIAM SYMONS. (L.S.)