or other Products to Mill-stones.
Year: 1885

page_text: or other Products to Mill-stones.
I, WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake & Co Patent
Agents Southampton Buildings in the County of Middlesex, do hereby declare the
nature of my invention for IMPROVEMENTS IN APPARATUS FOR REGULATING THE
SUPPLY OF GRAIN OR OTHER PRODUCTS. TO MILL-STONES, to be as follows:-
This invention relates to apparatus for enabling the supply of grain or other
products to mill-stones to be regulated as required at any moment.
For this purpose, to the driver of the upper mill-stone is firmly attached a
round vertical shaft, which is extended upward in the form of a square rod.
Around the lower round part of the said vertical shaft is a spiral or screw of sheet
metal, which is firmly connected with the said shaft. The two uppermost threads
of the said screw, which project above the round portion of the shaft, are not
connected with the square part thereof, but are provided with a central passage or
opening. Upon the said square part is placed a sleeve having a correspondingly
formed opening. The said sleeve permits of being moved in a vertical direction
upon the said square part, but is caused to participate in the rotation of the shaft.
On the said sleeve are arranged agitating arms by which the grain introduced
into the hopper is kept in continual motion thus preventing an obstruction of
the same.
A lever pivotted to the side of the hopper enters at one end into an eye of a
piece connected with the said sleeve, in such a manner that the latter can revolve
unhindered but must otherwise follow the motion of the said piece.
The sleeve stands firmly upon the upper thread of the spiral. By turning a
screw connected with the said lever, the latter can be caused to assume different
positions, whereby the said piece and with it the sleeve can be moved in an
upward or downward direction.
The two uppermost threads of the spiral or screw, which loosely surround the
square portion of the shaft, are, in the descending motion of the sleeve, compressed
71

page_text: by the latter, whilst they expand again in the upward movement of the sleeve by
reason of their inherent elasticity. By the displacement of the sleeve which, as
stated above, is effected by the screw attached to the outside of the hopper, or by
the lever, the distance between the two uppermost threads surrounding the square
portion of the shaft can be increased or diminished at pleasure. As, however, the
grain is taken by these from the hopper for further transport to the mill-stones,
the quantity of grain supplied is dependent on the distances between the two
uppermost spiral threads, by increasing or diminishing which distances more or
less grain can, according to the requirements of the moment be conveyed to the
mill-stones.
HASELTINE, LAKE & Co.,
For the Applicant.

page_text: Improvements in Apparatus for Regulating the Supply of Grain
or other Products to Mill-stones.
I, WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake, and Co, Patent Agents,
Southampton Buildings, in the County of Middlesex, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
This invention relates to apparatus for enabling the supply of grain or other
products to mill-stones or other grinding or reducing apparatus to be regulated as
required at any moment.
In the accompanying drawing
Figure 1 is an elevation of my improved apparatus and
Figure 2 is a sectional view of the lower portion of the same.
α,
To the driver of the upper mill-stone is firmly attached a round vertical shaft
which has, at its upper end, a square extension b. Around the lower round part of
the shaft a is arranged a spiral worm c of sheet metal.
The lower portion of this worm is firmly connected with the shaft a whilst the
two uppermost convolutions of the said worm which project above the round
portion of the shaft a, are not connected with the extension 6, but are provided
with a central passage or opening through which the same passes.
A sleeved having a hole corresponding in shape and size to the extension b, is
adapted to be moved in a vertical direction upon the part b, but is caused to
participate in the rotation of the shaft a.
Upon the said sleeve d are arranged the agitating arms e, by which the grain or
other substance introduced into the hopper is kept in continual motion, thus
preventing an obstruction of the same.
A lever g pivotted at i enters at one end o into the eye of a piece f which is
connected with the sleeve d in such a manner that the latter can revolve freely but
must otherwise follow the motion of the said piece f.
The sleeve & bears upon the upper convolution of the spiral. By turning the
screw h, connected with the lever g, the latter can be caused to assume different
positions, whereby the said piece f, and with it the sleeve d, can be moved in an
upward or downward direction.
The two uppermost threads of the spiral or worm a which loosely surround the
extension b are, in the descending motion of the sleeve d, compressed by. the latter,
whilst they expand again in the upward movement of the sleeve d, by reason of
their inherent elasticity. By the displacement of the sleeve d, which, as stated
above, is effected by the screw h attached to the outside of the hopper, or by the
lever g, the distance between the two uppermost convolutions surrounding the
square extension 6 can be increased or diminished at pleasure. As, however,
the grain or the like is taken by these convolutions of the worm from the hopper B,
for further transport to the mill-stones or other grinding or reducing surfaces, and
as the quantity of grain or other material supplied is dependent on the distance
between the two uppermost convolutions, more or less grain can be conveyed to the
mill-stones or the like, according to the requirements of the moment.

page_text: Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, as communicated to
me by my foreign Correspondent I declare that what I claim is :-
Apparatus for regulating the supply of grain or other products to mill-stones, or
other grinding or reducing surfaces, according to the requirements of the moment,
the said apparatus consisting of the spiral or worm c firmly secured upon the
shaft a, the two uppermost convolutions of which worm loosely surround the
extension b and are adapted to be placed at a greater or less distance from each
other by means of the sleeve d, whereby, as the grain or the like, in its passage
from the hopper to the grinding or reducing surfaces, has to pass between these
adjustable convolutions, a larger or smaller quantity of material is supplied to the
said grinding or reducing surfaces.