IMPROVEMENTS. IN PRESSES FOR PRESSING SEEDS, FRUITS, HOPS, AND OTHER SUBSTANCES
Year: 1862

page_text: LETTERS PATENT to Francis Gregory, of the City of Manchester, in the
County of Lancaster, Agricultural Machinist, for the. Invention of
"IMPROVEMENTS. IN PRESSES FOR PRESSING SEEDS, FRUITS, HOPS, AND OTHER
SUBSTANCES."
Sealed the 24th April 1863, and dated the 30th October 1862.
PROVISIONAL SPECIFICATION left by the said Francis Gregory at the
Office of the Commissioners of Patents, with his Petition, on the 30th
October 1862.
I, FRANCIS GREGORY, of the City of Manchester,, in the County of Lan-
5 caster, Agricultural Machinist, do hereby declare, the nature of the said
Invention for "IMPROVEMENTS IN PRESSES FOR PRESSING SEEDS, FRUITS, HOPS,
AND OTHER SUBSTANCES," to be as follows:
The cross head is supported by two or more columns, and the ram or
pressing plate is guided by rods or guides in the usual manner. Instead of
turning the screw for the purpose of moving the ram up and down, I cause
the nut to revolve so that the screw moves up and down without turning.
When the pressure is required, I give a slow motion to the nut by means of
a worm and wheel, and when the screw and ram are to be raised out of
action the nut is turned more quickly by means of bevil wheels, or, when
desired, I use bevil wheels only, and move the screw up and down at a uniform
speed, or vary the speed by changing the motion of the driving shaft.. I
place, the materials to be pressed in a frame of three sides cast or fixed to
the bed plate, to which frame is hinged a door so as to form a box. On the
bed plate within the box, and on the under side of the ram, there are pro-

page_text: jections having in contact with them perforated wrought-iron plates, which.
projections form spaces to allow the liquid or fluid from the pressed matter to
escape.
When the press is worked by power, I employ a safety apparatus con-
sisting of a lever or spring acting upon one of the steps of the driving shaft,
so that when there is too much pressure, or when the pressing operation is
completed, the step shall be raised and give motion to a fork for placing the
strap upon the loose pulley, or reversing the motion.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Francis Gregory in the Great Seal Patent Office on the
29th April 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, FRANCIS
GREGORY, of the City of Manchester, in the County of Lancaster, Agricultural
Machinist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirtieth day of October, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-sixth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Francis Gregory, Her special license that I, the said Francis Gregory,
my executors, administrators, and assigns, or such others as I, the said Francis
Gregory, 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 PRESSES POR
PRESSING SEEDS, FRUITS, HOPS, AND OTHER SUBSTANCES," upon the condition
(amongst others) that I, the said Francis Gregory, my executors or admi-
nistrators, 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 Francis Gregory, 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) :-

page_text: The cross head of the press is supported by two or more columns in the
Instead of turning the screw for the purpose of moving the
ram or platen up and down, I cause the nut to revolve so that the screw
moves up and down without turning. On the nut I fix or cast a bevil wheel,
and gear it into another bevil wheel on a driving shaft, and likewise on the
nut I fix or cast a worm wheel, and gear it into an endless screw or worm
on another shaft. When the pressure is required, I give a slow motion to
the nut by turning the worm geared into the worm wheel, and when the
screw ram or platen are to be moved to or from the material, I put the worm
out of gear with the worm wheel, and cause the nut to be turned more
quickly by turning the bevil wheel geared into the bevil wheel at the end of
the nut.
Having now described the nature and particulars of my said Invention, I
desire it to be understood that I claim, in presses for pressing seeds, fruits,
hops, and other substances, the employment on the nut of a bevil wheel
gearing into another bevil wheel on a driving shaft, and also on the nut of a
worm wheel gearing into an endless screw or worm on another shaft for
the purpose of giving quick and slow motion to the ram or platen of the
press.
In witness whereof, I, the said Francis Gregory, have hereunto set my
hand and seal, this Twenty-fifth day of April, in the year of our Lord
One thousand eight hundred and sixty-three.
Signed, sealed, and delivered by the
within-named Francis Gregory, in
the presence of
E. J. HUGHES,
FRANCIS GREGORY. (L.S.)
Patent Agent,
Manchester.