IMPROVEMENTS IN APPARATUS USED IN THE MANUFACTURE OF SALT
Year: 1878

page_text: LETTERS PATENT to John Buckley Deakin and George Henry Deakin, both of
Liverpool, in the, County of Lancaster, Salt Proprietors, for the Invention of
"IMPROVEMENTS IN APPARATUS USED IN THE MANUFACTURE OF SALT."
Sealed the 6th December 1878, and dated the 24th June 1878.
PROVISIONAL SPECIFICATION left by the said John Buckley Deakin and
George Henry Deakin at the Office of the Commissioners of Patents on the
24th June 1878.
JOHN BUCKLEY DEAKIN and GEORGE HENRY DEAKIN, both of Liverpool, in the
County of Lancaster, Salt Proprietors. "IMPROVEMENTS IN APPARATUS USED IN
THE MANUFACTURE OF SALT."
Our Invention relates to that branch of the manufacture of salt in which stoved
lumps or blocks are reduced to the condition known as "factory filled salt," and
consists of novel apparatus operating so as to break or crush the stoved lumps of
salt, and afterwards sift out efficiently and quickly the ". pan scale and other
impurities. The pure salt delivered is then in the best condition for table use and
for use in butter and cheese making.
"
The breaking or crushing apparatus, which may be of any ordinary or desired
kind, although we prefer to use rotating smooth rolls having equal or differential
surface speeds, acts in combination with a sieve, to which is given a double motion,
namely, a vibrating or to-and-fro motion in the same plane as its sifting surface, for
the purpose of effecting the sifting of the salt from the pan scale and impurities,
and a jumping or jerking motion at right angles or nearly so to the to-and-fro

page_text: motion, for the purpose of loosening the salt, and spreading it over the surface of
the bottom of the sieve.
In carrying the Invention into practice we use a hopper or shoot through which
the lumps or blocks of stoved salt are supplied to a pair of smooth rolls; these
rolls are caused to rotate in opposite directions with different surface speeds by any
suitable power. The broken or crushed salt falls from between the rolls direct on a
sieve, or by shoots on two or more sieves.
The sieve on which the salt falls is supported on bearing pieces, or so suspended
by connecting rods, links, or equivalent means, that it is free to move to and fro in
a horizontal plane. The to-and-fro motion is given to the said sieve by means of
tappets or eccentric connections, or other suitable means operated from the axis of
one or both of the smooth rolls, or from any convenient source of power.
When the said sieve is supported on bearing pieces, we prefer to employ pulleys
or rollers on which the framework of the sieve reste, and we fit or form the said
framework with projecting pieces, so arranged that they strike against the pulleys
or rollers during the to-and-fro motion of the sieve, and cause such sieve to have a
jumping up-and-down or jerking motion.
When the sieve is suspended from links or like means, tappets or their
equivalents may be used to act on the links or the sieve, so as to give the jumping
or jerking motion thereto.
To deaden the noise caused by the jumping of the sieve and to secure durability
of the parts, india-rubber or elastic buffers are placed, if desired, at any suitable
points.

page_text: ..
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Jolin Buckley Deakin and George Henry Deakin in the Great Scal
Patent Office on the 24th December 1878.
JOHN BUCKLEY DEAKIN and GEORGE HENRY DEAKIN, both of Liverpool, in the
County of Lancaster, Salt Proprietors. "IMPROVEMENTS IN APPARATUS USED IN
THE MANUFACTURE OF SALT."
Our Invention relates to that branch of the manufacture of salt in which stoved
lumps or blocks are reduced to the condition known as "factory filled salt," and
consists of novel apparatus operating so as to break or crush the stoved lumps of
salt, and afterwards sift out efficiently and quickly the "pan scale" and other
impurities. The pure salt delivered is then in the best condition for table use, and
for use in butter and cheese making.
The breaking or crushing apparatus, which may be of any ordinary or desired
kind, although we prefer to use rotating smooth rolls having equal or differential
surface speeds, acts in combination with a sieve to which is given double motion,
namely, a vibrating or to-and-fro motion in the same plane as its sifting surface,
for the purpose of effecting the sifting of the salt from the pan scale and impurities,
and a jumping or jerking motion at right angles or nearly so to the to-and-fro
motion, for the purpose of loosening the salt, and spreading it over the surface of
the bottom of the sieve.
In carrying the Invention into practice we use a hopper or shoot through which
the lumps or blocks of stoved salt are supplied to a pair of smooth rolls; these rolls
are caused to rotate in opposite directions with different surface speeds by any
suitable power. The broken or crushed salt falls from between the rolls direct on a
sieve, or by shoots on two or more sieves.
The sieve on which the salt falls is so supported on bearing pieces, or so
suspended by connecting rods, links, or equivalent means, that it is free to move
to and fro in a horizontal plane. The to-and-fro motion is given to the said sieve
by means of tappets or eccentric connections, or other suitable means operated
from the axis of one or both of the smooth rolls, or from any convenient source of
power.
When the said sieve is supported on bearing pieces, we prefer to employ pulleys
or rollers on which the framework of the sieve rests, and we fit or form the
said framework with projecting pieces, so arranged that they strike against the
pulloys or rollers during the to-and-fro motion of the sieve, and cause such sieve to
have a jumping up-and-down or jerking motion.
When the sieve is suspended from links or like means, tappets or their
equivalents may be used to act on the links or the sieve, so as to give the jumping
or jerking motion thereto.
To deaden the noise caused by the jumping of the sieve and to secure durability
of the parts, india-rubber or elastic buffers are placed, if desired, at any suitable
points.
The Drawing hereunto appended is a side elevation of apparatus constructed
under our Invention; 1, framework; 2, hopper, through which the stoved lumps of
salt are fed to the rotating smooth rolls 3, 4, in passing between which it is broken
or crushed; any other crushing or breaking apparatus may be used. The roll 3
receives motion from the belt and pulley 5; the roll 4 receives motion from the
roll 3 by means of the toothed wheels 6, 7.
It will be observed that as the wheel 6 is smaller than the wheel 7, the rolls will
rotate with differential surface speeds; they may be caused to rotate with equal
surface speeds if desired. The broken or crushed lumps of salt fall from between
the rolls 3, 4, through the hopper and shoots 8 on the sieve 9. The sieve 9, which
rests on the framework 1, although it may be suspended from links or otherwise
supported, receives a vibrating or to-and-fro nearly horizontal motion by means of

page_text: the eccentric, and its connections or gear 10; other means may be used for the
purpose of sifting the salt from the pan scale and impurities.
A jumping or jerking motion is given to the said sieve in a nearly vertical
direction, for the purpose of spreading the salt over the bottom of the sieve, by
means of the projecting pieces 11 fixed to the sieve, which strike against the
rollers 12 secured or fitted to the framework 1, during the nearly horizontal,
vibrating, or to-and-fro motion of the sieve. The sifted salt falls through the
hoppers 13 whilst the pan scale and impurities are delivered over the shoot 14.
India-rubber or clastic buffers may if desired be placed beneath the sieve to
deaden the noise caused by its jumping motion.
Having now described and illustrated our Invention in such manner that others
will be enabled to carry our improvements into effect, we would have it understood
that we do not limit ourselves to details, but what we claim is, apparatus for
breaking or crushing stoved lumps of salt acting in combination with a sieve
having a compound motion, substantially as above described for the purpose set
forth.
In witness whereof, I, the said John Buckley Deakin, have hereunto set my
hand and seal, the Twenty-first day of December, in the year of our Lord
One thousand eight hundred and seventy-eight.