IMPROVEMENTS IN MACHINERY FOR SQUEEZING OR EXTRACTING THE LIQUID MATTER FROM ' SPENT TAN,' ,' 'SPENT HOPS,' 'OLD USED WASTE.” AND OTHER MATERIALS." PROVISIONAL SPECIFICATION
Year: 1874

page_text: LETTERS PATENT to Joseph Hall, of Leeds, in the County of York,
for the Invention of "IMPROVEMENTS IN MACHINERY FOR SQUEEZING OR
EXTRACTING THE LIQUID MATTER FROM ' SPENT TAN,'
,' 'SPENT HOPS,' 'OLD
USED WASTE.” AND OTHER MATERIALS."
PROVISIONAL SPECIFICATION left by the said Joseph Hall at the
Office of the Commissioners of Patents, with his Petition, on the
5th February 1874.
I, JOSEPH HALL, of Leeds, in the County of York, do hereby declare
the nature of the said Invention for "IMPROVEMENTS IN MACHINERY FOR
SQUEEZING OR EXTRACTING THE LIQUID MATTER FROM 'SPENT TAN,' 'SPENT HOPS,'
OLD USED WASTE,' AND OTHER MATERIALS," to be as follows:-
:-
The object of my improvements is to provide an arrangement whereby
the rollers admit of hard substances, such as stones and pieces of iron
passing between them without causing breakage to the machinery, all
as hereafter described.

page_text: Within suitable framework I mount by preference a pair of rollers;
one of the rollers is fluted on its periphery. I also provide another
roller which I call a feed roller; this is by preference fluted spirally, and
mounted in sliding or adjustable bearings. This roller is retained at its
required distance from the other rollers by means of springs, weights, or
their equivalents. One or both of the other rollers may also be made
adjustable and retained in position by means of weights, springs, or
their equivalents. These rollers being arranged in adjustable bearings
permit of any hard substance passing between them without breakage.
In some cases when required I cause the rollers to be heated by steam
or other suitable means whereby in certain substances the liquid is more
readily extracted.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
.
filed by the said Joseph Hall in the Great Seal Patent Office on
the 5th August 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPH
HALL, of Leeds, in the County of York, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria by Her
Letters Patent bearing date the Fifth day of February, in the year of
our Lord One thousand eight hundred and seventy-four, in the thirty-
seventh year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Joseph Hall, Her special licence
that I, the said Joseph Hall, my executors, administrators, and assigns,
or such others as I, the said Joseph Hall, my executors, adminis-
trators, 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
FOR SQUEEZING AND EXTRACTING THE LIQUID MATTER FROM 'SPENT TAN,' 'SPENT
HOPS, OLD USED WASTE,' AND OTHER MATERIALS,” upon the condition
(amongst others) that I, the said Joseph Hall, my executors or
administrators, by an instrument in writing under my, or their, or one.

page_text: 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 Joseph Hall, 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, reference being had to the accompanying
Drawings forming a part of this Specification:-
The object of my improvments is to provide an arrangement whereby
the rollers admit of hard substances, such as stones and pieces of iron
passing between them without causing breakage to the machinery, all as
herein-after described.
In order that my said Invention may be completely understood I
annex and proceed to describe the accompanying Sheet of Drawings.
Figure 1 represents a back elevation; Figure 2 a side elevation; and
Figure 3 a plan of machinery constructed according to my Invention.
Within suitable framework a I mount by preference a pair of rollers
band c; one of the rollers is fluted across the periphery; I also provide
another roller d, which I call a feed roller; this is by preference fluted
spirally and mounted in sliding or adjustable bearings e.
In order to retain the spiral roller d at its required distance from the
other rollers I regulate its position by means of the sliding bearings e.
The position of the spiral roller is varied backwards or forwards by
means of the nut on the hinge rod g; the turning of the nut ƒ causes
the lever or arm / to be moved backwards or forwards, which move-
ment is transmitted to the adjustable bearings e through the rods i.
Between the nut and lever or arm is provided a spiral spring ; which
permits of the spiral roller d moving away from the roller 6, so as to
allow or admit of hard substances, such as stones or pieces of iron,
passing between them without causing breakage to the machinery.
Instead of the spiral springs ; weights or their equivalents may be
employed. One or both of the rollers b and c may be made adjustable
(in the Drawings I have only shown the top roller b adjustable). The
top roller b is shewn to run or ride on the bottom roller c; the required

page_text: pressure is given thereto by means of the spring k which is threaded
on the rod and works against the boss m. on the framework a. On the
framework a and in suitable bearings n I mount the levers o which
transmit the pressure of the spring k on the rod 7 hooked on the lever o
through the rod p which connect the bushes q and levers o. Instead of 5
the springs & weights or other equivalents may be employed.

page_text: The gearing 2 is of the ordinary construction; motion is imparted
thereto from some suitable motive power. Other parts of the machine
not described are of ordinary construction.
Having now described the nature of my said Invention and the
manner in which the same is to be performed, I do not limit myself to
the exact limits, details, and configuration of parts I have explained
and shewn, as the same may of course be varied or modified without in
any way departing from my Invention, but what I do claim and desire
to be secured to me by Letters Patent is,-
Firstly. The arrangement, construction, and application of adjustable
rollers, substantially as herein set forth.
Secondly. The means employed for adjusting or regulating the position
of the roller so as to admit of hard substances, such as stones and pieces
of iron passing between them, substantially as herein set forth.
Thirdly. The arrangement, construction, and application of apparatus
for stopping the machine in combination with the means employed for
adjusting or regulating the position of the rollers, substantially as
herein set forth.
Fourthly. The application of hot rollers, substantially as and for pur-
poses herein set forth.
Fifthly. The application of bolts or rods for breaking points, sub-
stantially as herein set forth.
In witness whereof, I, the said Joseph Hall, have hereunto set my
my hand and seal, this Third day of August, in the year of our
Lord One thousand eight hundred and seventy-four.