Year: 1894

page_text: I, HENRY MENAGER, of 95 Boulevard Beaumarchais, Paris in the Republic of
France, do hereby declare the nature of this invention to be as follows:-
This invention relates to a flat circular bolting-mill for flour, semolina and their
residues.
The apparatus comprises a cylindrical wooden casing, lined with linen or canvas,
and having a central aperture through which passes a driving shaft carrying an
eccentric. This eccentric rotates inside a collar secured to the bottom of the bolter
by a three-armed attachment piece.
The lower extremity of the shaft is provided with a steel pivot rotating in a
foot-step. The upper end of the shaft is journalled in a four-armed collar fastened
to the framework of the ceiling or floor above. To the lower end of the shaft is
affixed, between the eccentric and the step-bearing, a fly-wheel and a belt-driven
pulley, which transmits movement from the motor to the mill. The position of
this motor-pulley may vary according to circumstances, as it may also be carried on
any convenient part of the upper portion of the driving-shaft, near the ceiling.
The cylindrical casing is suspended from the framework of the ceiling or floor
above by means of three steel wire-ropes whereof the upper ends are secured in
supports screwed to the said framework and the lower ends are similarly fastened
to the casing by means of three corresponding supports sliding vertically in
suitable guide-pieces, and specially made adjustable by means of set-screws whereby
the horizontal position and working of the bolter may be maintained.
According to the nature of the work and the speed of the mill, the suspension
may be effected by means of round iron tension-rods, terminated at each end with
a ball fitting into a spherical socket-bearing, the rods having central union-joints
consisting of a tapped sleeve with right and left-threads into which the screwed
ends of the upper and lower suspension-rods are arranged to fit with corresponding
contrary threads. The sleeve is fitted with a handwheel for facility of adjusting
the bolting-mill in a horizontal position.
In certain cases the mill-casing may have a square shape in others again the
form of a parallelogram, without modification in principle or construction, with the
exception of the mode of suspension which in such case would be by four steel
wire-ropes, or wrought iron rods.
Inside the case six frames are arranged, oue above another. Each frame is
divided into three sectors and each sector is subdivided into three concentric and
equidistant annular paths or segments of equal widths and depths. Of these circular
paths the first, third and fifth are lined at the bottom and sides with silk or

page_text: wire-gauze, according to the nature of the substance to be bolted. The three
others, have sheet-zinc or waxed-canvas bottoms, and serve to convey the bolted
flour from the segment or path placed above them, in the next frame into that lying
next below them.
The wings or vanes formed of thin zinc-strips, are nailed vertically on the
partitions or walls of the paths of the sectors and serve to direct and accelerate
or retard the flow of flour, according to the angle of inclination at which they are
fixed in each case.
The wood slips glued on the lower surface of the linen, in the bolting sectors
above referred to, are intended to deaden the impact of the balls against the linen
and so prevent the deterioration of the latter.
The balls in the form of the weighted or balance-lever arm of a fly-press are fixed
on a circular axis concentric with the apparatus, arranged in the upper part of each
path in the conducting sectors. The balls swing freely upon the axis or shaft
with a reciprocating movement imparted to them by the rotation of the apparatus.
The balls striking against the wood strips glued to the linen of the bolters, prevent
the clogging of the linen by the adherence of the gummy particles which are thus
shaken loose by the vibration.
The flour etc. is delivered into the bolting-mill through three feed-hoppers
discharging respectively one into each path or segment of the first or uppermost
series of sieves or bolters, which the flour, or other material to be bolted or sifted,
traverses from end to end, the residue from this first sifting passes through
openings into the second sifter, while the sifted material falls into the first
conductor-frame which discharges it by its delivery pipe or outlet.
The residue undergoes a further bolting in the second sifter; the sifted material
from this second operation falls into the second conductor-frame and thence passes
away by its delivery outlet while the further residue passes into the third sifter,
where the same screening etc. is repeated.
Dated this 17th day of October 1904.
W. P. THOMPSON & BOULT,
Agents for the Applicant.
1, HENRY MÉNAGER of 95 Boulevard Beaumarchais, Paris in the Republic of
France, 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 a flat circular bolting-mill for flour, semolina and their
residues, and is illustrated by way of example in the accompanying drawings.
Figure 1 is an elevation partly in section of the apparatus suspended by its steel
wire-ropes.
Figure 2 is a plan of the same, also partly in section.
Figures 3, 3, 44, 11, 11, 12 and 12b illustrate various details of the parts
shown in Figures 1 and 2.
Figures 5 5b, 66bis, 7 7 bls, 8, 9 9 bis, 10 10, 13, 14 and 15 illustrate details of
the suspensory arrangement, and driving mechanism with the parts belonging
thereto.
The apparatus as will be seen in Figures 1 and 2, comprises a cylindrical wooden
casing, lined with linen or canvas, and having a central aperture through which
passes the driving-shaft A carrying the eccentric B, shown in detail in Figure 7 bls.
eccentric rotates inside the collar C (Figures 7 and 7b) secured to the bottom

page_text: of the bolter by the 3-armed attachment-piece D, shown in detail in Figures 5
and 5b18.
The lower extremity of the shaft A is provided with a steel pivot rotating in the
footstep E shown in plan in Figure 8. The upper end of the shaft is journalled in
a 4-armed collar F, fastened to the framework of the ceiling or floor above, and
shown in detail in Figures 6 and 6. To the lower end of the shaft A is affixed,
between the eccentric and the step-bearing, a fly-wheel X and a belt-driven pulley Z
which transmits movement from the motor to the mill. The position of this motor-
pulley may vary, according to circumstances, as it may, as shown in Figure 1, also
be carried on any convenient part of the upper portion of the driving-shaft, near
the ceiling.
The cylindrical casing is suspended from the framework of the ceiling or floor
above by means of three steel wire-ropes G whereof the upper ends are secured in
the supports H (Figures 9 and 9b) screwed to the said framework, and the lower
ends are similarly fastened to the casing by means of three corresponding
supports H sliding vertically in suitable guide-pieces, and specially made adjustable
by means of set-screws I, whereby the horizontal position and working of the
bolter may be maintained, as shown in detail in Figures 10 and 10 bl.
According to the nature of the work and the speed of the mill, the suspension
may be effected by means of round iron tension-rods, terminated at each end with
a ball fitting into spherical socket-bearing (Figures 13, 14, and 15). Figure 13
shows a plan of such a ball-jointed support; Figure 14 is a longitudinal section of
the lower suspension rod, showing the concavity of the socket, as well as of the
central union-joint consisting of a tapped sleeve with right and left threads into
which the screwed ends of the upper and lower suspension-rods are arranged to fit
with corresponding contrary threads, as shown; the upper length of the rod being
shown in elevation, with the ball, but without the joint. The sleeve is fitted with a
handwheel, as shown also in the general view of this appliance, in Figure 15 for
facility of adjusting the bolting-mill in a horizontal position.
In certain cases, the mill-casing may have a square shape, in others, again, the
form of a parallelogram, without modification in principle or construction, with the:
ex eption of the mode of suspension which, in such case, would be by four steel.
wie-ropes, or wrought-iron rods.
Inside the case, six frames are arranged, one above another, whereof three are.
designated by J and the other three by J1 (Figures 1, 3 3b 4 and 4). Each
fr.me is divided into three sectors K in J or K in J¹ and each sector is subdivided
into three concentric and equidistant, annular paths or segments, of equal widths
and depths as shown in detail also in Figures 3, 4, 3 and 4. Of these circular
paths, the 1st, 3rd, and 5th of those designated K are lined at the bottom and sides
with silk or wire-gauze, according to the nature of the substance to be bolted
(Figures 4 and 4). The three others, designated by K have sheet-zinc or waxed
canvas bottoms, and serve to convey the bolted flour from the segment or path
placed above them, in the next frame, into that lying next below them.
The wings or vanes L formed of thin zinc strips, are nailed vertically on the
partitions or walls of the paths K and K of the sectors J and J and serve to
direct and accelerate or retard the flow of flour, according to the angle of
inclination at which they are fixed in each case.
The wood slips N glued on the lower surface of the linen, in the bolting sectors
above referred to, are intended to deaden the impact of the balls M against the
linen and so prevent the deterioration of the latter.
The balls M in the form of the hted or balance-lever arm of a fly-press
(Figures 11, 12, 11 and 12b) are fixed on a Circular axis concentric with the
apparatus arranged in the upper part of each path in the conducting sectors K',
this arrangement being as shown in detail in the Figures 3 and 3. The balls
swing freely upou the axis or shaft with a reciprocating movement imparted to
them by the rotation of the apparatus. The balls, striking against the wood

page_text: strips N glued to the linen of the bolters, prevent the clogging of the linen by the
adherence of the gummy particles, which are thus shaken loose by the vibration.
The flour etc. is delivered into the bolting mill through three feed-hoppers O
(Figure 1) discharging respectively one into each path or segment of the first or
uppermost series of sieves or bolters, which the flour or other material to be bolted
or sifted, traverses from end to end. The residue from this first sifting passes
through openings S (Figures 2 and 4) into the second sifter, while the sifted
material falls into the first conductor-frame K which discharges it by its delivery
pipe or outlet P (Figures 1 and 3).
The residue undergoes a further bolting in the second sifter; the sifted material,
from this second operation falls into the second conductor-frame and thence passes
away by its delivery outlet, while the further residue passes into the third sifter,
where the same screening etc. is repeated.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a bolting mill a casing suspended by suitable adjustable ropes or rods
movement being communicated to the casing by an eccentric and collar substantally
as and for the purpose described and illustrated in the accompanying drawings.
2. In a bolting-mill such as described in Claim 1 the arrangement of super-
imposed frames constituting alternately bolters and simple conduits for the sifted
substance or residue and divided into a number of annular paths so as to allow of
a substance of a different kind being bolted in each annular path substantially as
described and illustrated in the accompanying drawings.
3. In a bolting-mill the combination with each bolter of wings or vanes such as L
adapted to direct and accelerate or retard the flour and balls fixed on a circular
axis and turning freely thereon in such a manner as to free the linen from all
gummy particles the linen being provided where necessary with strips or laths
alternately struck by the balls by reason of the reciprocating movement com-
municated to the latter by the rotation of the driving shaft and eccentric
substantially as described and illustrated in the accompanying drawings.
4. The combination and arrangement of parts constituting the complete bolting
mill substantially as described and illustrated in the accompanying drawings.
Dated this 16th day of July 1895.
W. P. THOMPSON & BOULT,
Agents for the Applicant.