IMPROVEMENTS IN BOLTING MILLS OR MACHINES
Year: 1882

page_text: 19
LETTERS PATENT to William Robert Lake, of the firm of Haseltine, Lake
& Co., Patent Agents, Southampton Buildings, London for an Invention of
"IMPROVEMENTS IN BOLTING MILLS OR MACHINES communicated to him
from abroad by Jonathan Mills of Perre Haute, Indiana, United States of
America.
PROVISIONAL SPECIFICATION left by the said William Robert Lake at
the Office of the Commissioners of Patents on the 7th November 1882.
WILLIAM ROBERT LAKE, of the firin of Haseltine, Lake, and Co., Patent
Agents, Southampton Buildings, London, "IMPROVEMENTS IN BOLTING MILLS OR
MACHINES [A communication to him from abroad by Jonathan Milis of Perre
Haute, Indiana, United States of America.]
"
This invention relates to that class of machines used for bolting in flour mills
known as centrifugal bolts or reels.
For the purposes of brevity and clearness in this specification, the following
nomenclature is adopted. Entire machines of this class will be denominated
"bolts "
or "centrifugal bolts;" the outer case or shell will be called the "chest,"
the bolting cloth with the frame on which it is mounted, will be called the "reel"
and the inner rotating part, the "flyer." The central part of the flyer of my
improved bolt will be called the "drum
"
În centrifugal bolts as heretofore constructed, the flyer consists of a central shaft
provided with radial arms, or with discs having marginal projections to which are
secured longitudinal radial, or nearly radial, blades arranged at equal distances from,
and parallel with, the central shaft. The blades are not connected with each other
except through the medium of the supports described, and the material being acted
upon by the flyer, may, therefore, drop inward between the blades and through the
flyer, consequently a very high speed of the flyer is necessary to hold the material
outward. Even this measurably fails, and the said material constantly falls
through the flyer to the bottom of the surrounding bolting-reel. The result of this
action is to overload the reel at the bottom and to limit the work principally to
that portion of the reel which is situated on the ascending side of the flyer. In
TD 1022

page_text: this mode of operation, it is evident that much less than the full capacity of the
reel is attained. Moreover, in attempting to "dust" middlings by a bolt of this
construction the high speed required, operates to pulverize the middlings so
that perhaps as much fine dust is made, as is removed through the reel, and the
tailed middlings require dusting as much as they did before being passed through
the bolt.
To obviate this defect in bolts as heretofore constructed, I make the flyer in the
form of a close barrel or drum a few inches less in diameter than the interior of
the surrounding reel, and in some cases I attach the blades directly to the surface
of the drum. The latter, therefore, closes the space between the blades and
prevents the material being operated upon from falling to the bottom of the
surrounding reel. By a moderate speed of the flyer the said material as it falls
back from the reel-cloth upon the drum, is again promptly thrown outward, being
caught by the following flyer blades without first passing to the bottom of the
reel. Useless and injurious movements of the material being bolted are thus
avoided; accumulation and overloading at the bottom of the reel are prevented;
and attrition of the material (such as takes place when so accumulated at the
bottom of the reel and violently struck by the flyer blades) is obviated. Moreover
the material is more evenly distributed over the entire area of the reel-cloth, and
the successive movements of the said material outward against the reel-cloth are
more frequent and less violent. As a result, the capacity of the machine is materially
increased and the work performed thereby is considerably improved.
Another object of this invention is to more effectually control the movement
from the head to the tail of the reel, of the material being operated upon, than is
--practicable. with the bolts heretofore employed.
It is generally desirable that the progress of the material being bolted through
the reel from front-to rear should not be uniform, or in other words, that it may
advantageously be carried along more rapidly-for-the first two thirds of the length.
-of-the-reel-or-thereabouts-and-thereafter-retarded, because_the_greater_portion of
flour fine enough to pass through the meshes of the cloth is bolted out in the first
half or two-thirds of the reel, and, if it be carried along at a uniform rapidity to the
reel-tail, there will be less material present in the last half or third of the reel than
in the first half or two-thirds thereof. When this is the case there is a risk of
passing dirt through the meshes of the reel, while if the material be retarded near
the tail of the reel so as to give a greater body or quantity in this part of it than
in the other, the flour bolted out will be clearer than heretofore.
The rearward feed of the material being bolted is effected, as is well known, by a
spirally inclined arrangement of the flyer blades; but as machines have heretofore
been made, these blades are as much inclined at one end as the other, so as to give
the uniformity of rearward movement above stated to be objectionable.
To remedy this fault, and to effect the unequal progress of the material through
the reel, I make the flyer blades of less length than the drum and set those at the
rear end of the drum, say, for about one third of its length, at a less incline
spirally than those upon the remaining portion of the drum surface. I prefer to
make the said flyer blades from six to eighteen inches in length and to secure
them adjustably to the drum surface, so that their spiral inclination may be fixed
or adjusted at will and according to the requirements of the particular material
being bolted.
A further object of this invention is to induce a current of air, more or less
strong, as may be desired from front to rear or from the head to the tail of the
machine, between the bolting reel and the flyer or drum, in order to carry out
those light, fibrous substances usually present in the middlings or flour and
calculated to obstruct the reel-cloth, and in order to give an outward blast through
the reel-cloth and thereby increase its efficiency.
For this purpose I provide suitable openings in the otherwise closed front reel-
head, and apply slides or registers thereto in order to control the volume of a.r
admitted. As a means for inducing a draught through these openings, the flyer

page_text: drum (the heads of which are closed) is provided with wings at its front end so
directed as to draw in the air when the drum is rotated. Usually these wings.
will be extensions of some of the flyer blades, but they may be separate parts.
Another object of this invention is to provide a grouped arrangement of two or
5 more bolts in a single machine, mounted on a single portable frame or having their
several moving parts actuated from a single "drive," or connected to deliver one
into another, or having all these or other relations of depondence. This feature of
the said invention is devised for the purpose of effecting great economy in the
cost of the machines and in the space which they will occupy in the mill, most
mills requiring more than one machine and their considerable cost and the space
they occupy being material considerations.
The said invention has other objects and features which will be hereinafter
described.
In carrying the said invention into practice I provide a frame carrying three
non-rotating cylindrical shells forming the chests of the improved bolts. These
chests are constructed of longitudinal staves, tongued and grooved together and set
at each of their ends in a cast iron annular rin rigidly secured to the said frame
in any suitable manner. Across the ends of each reel, and attached to the said
frame, or to the rim of the chest, are located bridge-trees which support the bolting
reel and the drum or flyer. The said bolting reel consists essentially of a frame
formed of an annular metal head at the front end and a narrower annular rim at
the tail end. These annular parts are joined on their peripheries by longitudinal
ribs which are externally embraced by a series of metal hoops or circumferential
ribs. The head, at the front of the reel, has a central opening, and to the innor
margins of the head, about the said openings, are attached the arms of a central
hub. The said hub is mounted on a conical sleeve through which passes a shaft.
One of the said bridge-trees is provided with a box surrounding the said hub, into
which box the material to be supplied to the reel is fed through a feed-spout and
hopper. Surrounding the said hub is fixed a spiral blade operating as a conveyor
which works in the said box for the purpose of carrying forward the material to
be bolted, into the bolting reel. At the rear end of the bolting reel, arms connect
the rim with a hub similar to the aforesaid hub, and similarly mounted by means
of a sleeve on the shaft. The cloth is secured to the reel-frame in the following
manner that is to say;-The periphery of the head is provided with a rounded rib
between which, and the outer edge of the head, is located an annular groove adapted
to admit a binding hoop or cord. If the binder be a cord, the same may be tied to
confine the end of the bolting cloth firmly within a groove, and in case the said
binder is of metal, it may have right and left handed threads at its contiguous
ends which are then drawn together by a corresponding nut. To enable such a
binding device to retain the cloth against strain which may be put upon it, tho
said cloth is sometimes provided, at its edge, with a cord confined in a suitable
hem or binding of the same or added inaterial. For the purpose of securing the
opposite end of the reel cloth and also for the purpose of adjusting the tension of
the said cloth, the reel-frame-rim is provided with a circumferential flange through
which pass a number of small screw-threaded rods each provided with a thumb-
nut external to the flange. The said rods are preferably arranged at a slight
distance from the outer or peripheral surface of the rim to admit the cloth beneath
them, and to their inner ends is secured a metal ring provided on its outer surface
with a series of projections or hooks. The rear end of the real-cloth is attached to
this-ring by being passed beneath the said ring and beneath its supporting rods
and then bent over forward, outside of the ring and caught upon hooks, suitable
notches or slits being cut in the cloth for the rods to allow of its being bent forward
over the ring. The said ring is made in halves provided with outwardly bent
ends through which a clamping bolt is passed, for the purpose of drawing the said
ing after the application of the cloth thereto firmly down upon the outer surface
of the rim. By these means the strain of the said cloth need not fall wholly upon
he hooks. In thus clamping the ring to its place, the rods yield laterally as

page_text: much as is necessary to permit the required movement of the binding ring. To
give greater strength to the reel-cloth at the points of its attachment as described,
the said cloth is sometimes provided with a broad hem or boarder of stout ticking|
with which the fastening devices come in contact or with which they engage.
To the bolting reel above described, and externally to the cloth, are secured any
desired number of longitudinal blades or sweeps projecting outwardly into proximity
to the surrounding chest or cylinder and intended to carry the bolted material or
flour to openings provided for its discharge, as hereinafter described.
The part of the improved bolt, herein denominated the flyer, and by which a
centrifugal impulse is given to the material to be bolted, is of peculiar construction,
consisting essentially of a relatively large cylinder or drum of external diameter,
say, about six inches less than the interior of the bolting reel frame. The said drum
is composed of rigid staves closely tongued together, and mounted on solid heads
rigidly secured to the shaft. Upon the external surface of the said cylinder are
applied a number of wings, floats, or blades, which are preferably about an inch and
three-fourths in width, and from six to eighteen inches long. The said blades may
be made of angle iron, either wrought, or cast, or malleable, and are attached to the
drum by screws or bolts passing through one flange of the iron so as to hold the
other flange projecting outward. The projecting flange or blade should be some-
what inclined from a radial line of the drum, backward with reference to the
direction of motion. One of the apertures for the fastening bolts by which the
blades are secured to the drum, is made in the form of a slot arranged transversely,
so that the blade_ may be fastened at any desired inclination_from_a_direct
longitudinal line upon the drum.
Any desired number of theso blades are secured to the surface of the drum and
are set in longitudinal series, or out of line, as preferred. Ordinarily the blades
--above described will be set in a spiral arrangement or direction, and for the purpose
of giving less rapid feed through the reel at its tail, than in other parts thereof of
-the-material-being-bolted, I-set-the-blades-which-are-located near the rear end of
the drum at a less inclination longitudinally than the remainder of them, but by
means of their adjustable attachment to the drum, any desired change in their
spiral direction can at any time bo made, and any desired effect as to rapidity of feed
obtained.
"
Some or all of the blades which are located at the extreme front end of the drum
are provided with an extension directed inward over the head and from the
periphery of the drum towards its axis, and also forward with reference to the
direction of motion of the drum. The effect of this construction is, by the rotation
of the drum, to induce a current of air backward around the outside of the drum,
and within or through the surrounding bolting-cloth. In order to provide for the
admission of air to be thus conducted, the front reel head has apertures provided
with slides or registers the latter serving to regulate the amount of air admitted
and the consequent force of the draught.
The head of the bolting reel substantially fills the space within the front rim of
the chest thero being only sufficient space between the two to ensure freedom of
movement or non-contact of these two parts. The opposite end of the chest is open,
except as partially closed by the flange of the rim. The tail of the bolting reel is
open and the said reel terminates a short distance within the chest so as to discharge
its tailings inside the flange. To secure the separato discharge of the tailings from
the chest, a spout is provided, leading from the interior of the chest at the rear end
thereof, and a blade or sweep is fastened to one of the arms, or otherwise secured to
the bolting reel frame in position to carry the tailings out through the said spout.
A rim or flange of wood or other material (preferably having lambs-wool attached
to its free edge) is fixed in the chest opposite and proximate to the flange of one of
the reel-rims so as to prevent the tailings from being mixed with the flour passed
through the bolting cloth.
From end to end of the chest two longitudinal openings are provided, one above
the other, at the ascending side of the reel, for the discharge of the flour into the

page_text: conveyor boxes which are arranged externally to the said chest. Two conveyor
boxes, each provided with a conveyor are placed in cominunication with each chest,
the upper box being intended for the finished flour, and the lower one, called the
cut-off, for conducting the flour that is imperfect to any desired point or machine for
further finishing, or for other purposes.
The lower of theso cut-off conveyor boxes
can also be made to receive the tailings by providing a slide in the tailing spout
near the chest so that the tailings will be carried forward to the lower passage which
will be opened to receive them.
As a means for controlling the delivery of the bolted flour from the chest to one
or the other of the conveyor boxes as may be desired, slides are provided preferably
curved to conform with the cylindrical chest and arranged to run circumferentially
of the said chest. Each of the said slides is provided with an aperture arranged
to stand opposite the lower opening when the slide is thrust upwardly in. The
said slides are preferably made of sheet metal, say six inches wide, or thereabouts,
and are held and directed by having their edges fitted in narrow metal guides
arranged across the openings of the chest. Instead of using transverse guides the
edges of the slides may be bent to interlock with each other so that each slide will
be guided by contiguous slides. The upper opening in the chest preferably will not
extend behind the flange as there will obviously be no occasion for taking the
tailings into the upper conveyor, and a plain slide without apertures may be applied
to the lower opening where it leads from the tailing compartment of the chest.
By means of the said slides any portion of the bolted material can be delivered
to either conveyor as may be desired, so that if a hole should be made in the reel
cloth at any point and imperfect flour be passed into the chest, then by pushing
in the slide opposite the said hole, or as many neighbouring slides as are necessary,
the upper conveyor will be cut off at this point, and the imperfect flour will be
discharged through the apertures of the slides into the lower conveyor. This form
of slides or other forms by which the flour may be sent to either upper or lower
conveyor as desired should be applied to each bolt or chest. In the case of a lower
bolt of a group, or of a single bolt, the slides above described are sometimes reversed
in their arrangement; that is to say they are arranged to draw upward and made
accessible over the top of the upper conveyor box. In this case, the aperture will
coincide with the upper passage when the slide is thrust in, and the lower passage
will be opened by raising the slides.
In the case of a single bolt, or of the lower one of a group of bolts, I prefer to
employ additional slides which unite to form the bottom of the upper box and
by being drawn out, serve to open a communication between the upper box and the
lower one.
The upper conveyor boxes of a group of three bolts are connected by a spout
and both conveyor boxes belonging to the lower bolt are provided with suitable
discharge spouts. The lower conveyor box belonging in common to the two upper
bolts delivers into the lower reel hopper through a spout.
Within each feed spout of the several bolts, and arranged to catch the material
fed into the spout, is located a hopper having its bottom, and preferably its sides
also, made of slotted or perforated metal or wire netting whereby dough balls or
foreign substances present in the material to be bolted, and calculated to injure the
reel cloth, may be arrested; and a hand-hole is provided in the feed spout through
which such arrested substances may be removed.
In order that the hopper may not clog, it is mounted on a bracket or support,
pivotted, and having its inner arm directed downward so as to bear against a
circular cam-face on the head having one or more short projections or prominences
which serve to vibrate the bracket and hopper as the reel revolves. The conveyors
all carry from the rear to the front of the machine.
For the purpose of driving the several drums, reels, and conveyors of a group of
three bolts from the same shaft, I provide the shaft of the lower bolt with a driving
pulley on its front end over which passes a driving belt and outside of which the
said shaft has a supporting bearing on a bracket or arm. The said shaft rotates in

page_text: sleeves within the reel-hubs, and at its rear end is provided with a fixed pulley
from which the high speeded parts or flyer-drums are driven throughout the group
of bolts. For the drive I prefer to employ rope or other round belts, but other
forms may be used. The pulleys are grooved to receive the round belts. Two
belts are employed, one for the high speeds and another for the lower speeded
parts. I also employ tightening devices with the belts.
On the outer rear ends of two shafts which correspond with the aforesaid shaft
are fixed pulleys equal in diameter to the aforesaid pulley, and on the rear end of
the conveyor shaft is a loose pulley, also of the same diameter, all being arranged
in the same vertical plane with the driving pulley of this high speeded series, and
connected by the fast belt. Behind these pulleys, or between the same and the
rear ends of the bolts, other pulleys are located as follows, that is to say, on the
conveyor-shaft is a fixed pulley; on one of the reel hubs is fixed another pulley;
and on the similar hubs of the upper bolts similarly arranged on the said two
shafts are fixed other pulleys. These pulleys are in the same vertical plane with
each other and with the pulleys on the lower conveyor shafts, and are connected by
the slow belt.
A belt-tightener bearing two loose pulleys situated respectively in the planes of
the two series of pulleys above described, and located at the left of one of the upper
bolt pulleys, completes the series of pulleys over which the belts are passed. The
construction of the said tightener will be hereinafter described.
The unequal speeds of the two belts is obtained as follows, that is to say ;-On the
inner end of the hub of a loose pulley is cast or secured a small pinion which meshes
with-a-spur-wheel-on--the rear end of the shaft,-and-on-the-front ends of two
conveyor-shafts are secured intermeshing gear-wheels. By means of the unequal
gear-wheels, the speed of the conveyor-shafts is reduced from that of the drum-
shafts, and the said loose pulley becomes the driver of the low speeded belt. The
pulleys in either series may be of unequal diameter, if desired, so as to give any
required speed to any part driven thereby.
The belt-tightener is supported by an arm secured to the end of the chest-or-to-
the rim thereof, and is composed of pulleys mounted on a transverse shaft which is
supported by an arm adjustably secured in a recess of the fixed head. The said
arm and recess are preferably squared in order to support the pulleys in a vertical
position, and longitudinal adjustinent of the said arm is effected by means of a
screw passing through the head and screwed into the end of the said arm.
For the purpose of allowing the tightening pulleys to yield more or less, a spring
is interposed between the hend and the nut or hand wheel about the screw shaft.
This is desirable, more especially in the use of V-grooved pulleys and round belts,
because unevenness in the thickness of the belt allows it to sink more or less into
the grooves and to thereby vary its tension.
Some of the advantages resulting from the drum or barrel form of the flyer
herein described, would be obtained by locating a non-rotating or a loose drum
within the skeleton form of flyer heretofore used, and causing the blades, sup-
ported independently of the drum, to revolve outside of, and proximate to the
latter. This construction would, obviously, operate to prevent the material being
bolted from falling through the flyer to the bottom of the reel and cause such
material to be caught by successive arms of the flyer, provided the latter run closely
to the drum. Such construction would, manifestly, be inferior to that herein set
forth wherein the drum directly supports the blades and revolves with them. So
far, however, as the possible construction referred to will perform any function of
my machine, I wish it to be regarded as the equivalent thereof, and as being
comprised in the said invention.
The effect of overloading the reel by the descent of the material being bolted
through or between, the flyer blades, is, in some cases, prevented by a construction
in which the Byer drum or shaft is relatively smaller than that above described,
provided the blades are correspondingly widened and extended inward to the drum
or shaft. Such a construction will present a flyer having a series of troughs closed

page_text: at the bottom so that the material being operated upon cannot pass through the
flyer to the bottom of the reel. While I prefer that the drum shall be of relatively
large diameter and provided with narrow blades, I wish it to be understood that
a flyer having troughs included between adjacent blades and closed, or substantially
closed at the bottom, is a feature of the said invention.
The perforated hopper is constructed to bear continually, by means of the
bracket-arm, against the cam-face, but it is evident that, in place of a continuous
elevated face provided with prominences, the head may have the desired projections
arranged in a circle so as to strike the said arm, and that, except when so struck, the
hopper and bracket may be upheld by any convenient stop arranged to engage,
either with the hopper or bracket.
It will be understood that, by opening any one of the slides which divide the
lower pair of conveyors, that portion of flour received by the conveyor-box behind
the opened slide will be discharged into the lower conveyor, and the remainder will
go forward to the spout which delivers to the packer. The spout which takes the
imperfect flour from the lower conveyor of the lower bolt, may deliver to an elevator
or conveyor which will carry it back to either bolt in the machine, or will send it
to any other point for further treatment or disposal.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Robert Lake in the Great Seal Patent Office on the 7th May
1883.
WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake & Co, Patent Agents,
Southampton Buildings, London, "IMPROVEMENTS IN BOLTING MILLS OR
MACHINES " A Communication to me from abroad by Jonathan Mills, of Perro
Haute, Indiana, United States of America,
This invention relates to that class of machines used for bolting in Flour Mills
and known as centrifugal bolts or reels.
"
For the purposes of brevity and clearness in this specification the following
nomenclature is adopted. Entire machines of this class will be denominated
bolts or "centrifugal bolts" the outer case or shell will be called the "chest"
the bolting cloth with the frame on which it is mounted, will be called the "reel"
and the inner rotating part the "flyer." The central part of the flyer of the
improved bolt will be called the "drum."
În centrifugal bolts as heretofore constructed, the flyer consists of a central shaft
provided with radial arms, or with discs having marginal projections to which are
secured longitudinal radial or nearly radial blades arranged at equal distances from,
|_ and parallel with, the central shaft. The blades are not connected with each other
except through the medium of the supports described and the material-being-acted
upon by the flyer may therefore drop inward between the blades and through the
flyer, consequently a very high speed of the flyer is necessary to hold the material
outward. Even this measurably fails, and the said material constantly falls through
the flyer to the bottom of the surrounding-bolting-reel. The result of this action
-is-to-overlond-the-reel_at_the_bottom_and_to_limit the work principally to that
portion of the reel which is situated on the ascending side of the flyer. In this
mode of operation, it is evident that much less than the full capacity of the reel is
attained. Moreover in attempting to "dust" middlings by a bolt of this con-
struction, the high speed required operates to pulverize the middlings, so that
perhaps as much fine dust is made as is removed through the reel, and the
tailed middlings require dusting as much as they did before being passed through
the bolt.
To obviate this defect in bolts as heretofore constructed, I make the flyer in the
form of a close barrel or drum a few inches less in diameter than the interior of the
surrounding reel, and in some cases I attach the blades directly to the surface of
the drum. The latter therefore closes the space between the blades and prevents
the material being operated upon from falling to the bottom of the surrounding
reel. By a moderate speed of the flyer the said material, as it falls back from the
reel-cloth upon the druin, is again promptly thrown outward, being caught by the
following flyer blades without first passing to the bottom of the reel. Useless and
injurious movements of the material being bolted are thus avoided; accumulation
and overloading at the bottom of the reel is prevented; and attrition of the
material (such as takes place when so accumulated at the bottom of the reel
and violently struck by the flyer blades) is obviated. Moreover the material is
more evenly distributed over the entire area of the reel-cloth, and the successive
movements of the said material outward against the reel-cloth are inore frequent
and less violent. As a result, the capacity of the machine is materially increased
and the work performed thereby is considerably improved.
Another object of this invention is to more effectually control the movement
from the head to the tail of the reel, of the material being oporated upon, than
is practicable with the bolts heretofore employed.
It is generally desirable that the progress of the material being bolted through
the reel from front to rear should not be uniform, or in other words, that it may

page_text: advantageously be carried along more rapidly for the first two thirds of the length
of the reel or thereabouts, and thereafter retarded, because the greater portion of
flour, fine enough to pass through the meshes of the cloth, is bolted out in the first
half or two thirds of the reel, and, if it be carried along at an uniform rapidity to
the reel-tail, there will be less material present in the last half or third of the reel
than in the first half or two thirds thereof. When this is the case, there is a risk
of passing dirt through the meshes of the reel, while, if the material be retarded
near the tail of the reel, so as to give a greater body or quantity in this part of
it than in the other, the flour bolted out will be clearer than heretofore.
The rearward feed of the material being bolted is effected, as is well known, by
a spirally inclined arrangement of the flyer blades; but as machines have
heretofore been made, these blades are as much inclined at one end as the other,
go ns to give the uniformity of rearward movement, above stated to be
objectionable.
To remedy this fault and to effect the unequal progress of the material through
the reel, I make the flyer blades preferably of less length than the drum, and set
those at the rear end of the drum, say, for about one third of its length, at a less
incline spirally than those upon the remaining portion of the drum surface. I
prefer to make the said flyer blades from six to eighteen inches in length and to
secure them adjustably to the drum surface, so that their spiral inclination may be
fixed or adjusted at will and according to the requirements of the particular
material being bolted.
A further object of this invention is to induce a current of air, more or less
strong, as may be desired, from front to rear, or from the head to the tail of the
machine, between the bolting reel and the flyer or drum, in order to carry out those
light, fibrous substances usually present in the middlings or flour and calculated
to obstruct the reel-cloth, and in order to give an outward blast through the reel-
cloth and thereby increase its efficiency. For this purpose I provide suitable
openings in the otherwise closed front reel-head, and apply slides or registers thereto
in order to control the volume of air admitted. As a means for inducing a draught
through these openings, the flyer drum (the heads of which are closed) is provided
with wings at its front end, so directed as to draw in the air when the drum is
rotated. Usually these wings will be extensions of some of the flyer blades, but
they may be separate parts.
Another object of this Invention is to provide a grouped arrangement of two or
more bolts in a single machine mounted on a single portable frame, or having their
several moving parts actuated from a single "drive," or connected to deliver one into
another, or having all these or other relations of dependence. This feature of the
said invention is for the purpose of effecting great economy in the cost of the
machines and in the space which they will occupy in the mill, most mills requiring
more than one machine and their considerable cost and the space they occupy
being material considerations. In the drawings I have shown a group of three
bolts supported upon a single portable frame, connected by a single drive, and
arranged so that one pair delivers into conveyor boxes common to both, and having
the conveyor which receives the imperfect flour from the said pair connected to
deliver into the third bolt.
·
The said invention has other objects and features which will be hereinafter
described.
In the accompanying drawings-
Figure 1 is a perspective view of a group of three centrifugal bolts each
constructed according to this invention and secured detachably to the same frame,
so as to be together portable on the floor.
Figure 2 is a view of the group of bolts shown in Figure 1, the lower one of the
said bolts being shown in end elevation, the upper one at the right being shown
with the greater portion of the reel-head broken out so as to reveal the end of
the flyer-drum, and the upper one at the left being shown in central transverse
section.

page_text: Figure 3 is a rear elevation of the group of bolts shown in Figure 1, showing the
"drive" by which the several rotating parts, including the bolting reels, flyers and
conveyors, are driven.
Figure 5 is a central vertical section on the line x-x Figure 3, drawn to an
enlarged scale, having the central parts removed and showing the lower bolt and
the conveyors connected with the upper bolts in central vertical section and one of
the upper bolts in side elevation.
Figure 6 is a transverse section of the bolting reel, and
Figure 7 is a longitudinal vertical section thereof, drawn to an enlarged scale
for the purpose of showing the manner in which the bolting cloth is secured to
the reel.
Figure 8 is a perspective view of one of the apertured or cut-off slides which
are applied to the passages leading from the chest of the bolt to the two conveyor
boxes connected there with
Figure 9 is a section, in perspective, of the cleat and its attachments, by which
the slides are supported and guided.
Figure 10 is a section of the flyer-drum, showing the manner of attaching one of
the adjustable blades thereto.
Figure 11 is a top view of one of the said blades or floats shown as applied to a
portion of the drum and more clearly indicating the means by which the blade is
adjustably secured to the said drum.
Figure 12 shows a right and left threaded connection for joining the ends of a
metal binding hoop used to secure one end of the reel-cloth.
A is a frame and B, B, B are three non-rotating cylindrical shells forming the
chests of the improved bolts. Each of the chests B is constructed of longitudinal
staves, tongued and grooved together and set at each of their ends in a cast iron
annular-rim-B¹-rigidly-secured-to-the-frame-A-in-any-suitable manner. Across
the-ends_of_each_reeland_attached_to_the_ said frame, or to the rim B¹ of
the chest, are located bridge-trees C, C; which support the bolting reel-and-
the drum or flyer. The said bolting reel consists essentially of a frame formed
of the annular metal head D at the front end and the narrower annular-
rim D' at the tail end. These annular parts are joined on their peripheries
by longitudinal ribs D' which are externally surrounded by a series of metal-
hoops or circumferential ribs D³. The head D at the front of the reel has a
central opening D', and to the inner margins of the head about the said openings,
are attached the arms D³ of the central hub Do. The said hub is mounted on the
conical sleeve D' through which passes the shaft E. The bridge-tree C is provided
with the box C³ surrounding the hub D6, into which box the-material to be supplied
to the reel is fed through the feed spout H and hopper H'. Surrounding the said
bub D* is fixed the spiral blade & operating as a conveyor, which works in the box
C² for the purpose of carrying forward the material to be bolted into the bolting
reel. At the rear end of the bolting reel, arms D8, DB connect the rim D' with the
hub D' similar to the hub D and similarly mounted by means of a sleeve on
the shaft E. The cloth D¹º is secured to the reel-frame in the following manner,
that is to say:-The periphery of the head D is provided with a rounded rib d'
between which and the outer edge of the head is located an annular groove d³
adapted to admit a binding hoop or cord D". If the binder D" be a cord, the same
may be tied to confine the end of the bolting cloth firmly within the groove d² and,
in case the said binder is of metal, it may have right and left handed threads at its
contiguous ends which are then drawn together by a corresponding nut, as shown
in Figure 12. To enable such a binding device to retain the cloth against strain
which may be put upon it, the said cloth is sometimes provided at its edge with a
cord d³ confined in a suitable hem or binding of the same or added material. For
the purpose of securing the opposite end of the reel cloth D and also for the
purpose of adjusting the tension of the said cloth, the reel frame rim D' is provided
with a circumferential flange d' through which pass a number of small screw-
threaded rods d³ each provided with a thumb-nut ɗª external to the flange. The

page_text: репрно
said rods are preferably arranged at a sigut distance from the
surface of the rim D', to admit the cloth beneath them, and to their inner ends is
secured a metal ring D" provided on its outer surface with a series of projections or
hooks das clearly seen in Figure 7. The rear end of the reel-cloth is attached to
this ring D by being passed beneath the said ring and beneath its supporting
rods do and then bent over forward, outside of the ring D, and caught upon the
hooks d', suitable notches or slits being cut in the cloth wherever the rods d³ occur,
to allow of its being bent forward over the ring D¹ as seen in Figures 6 and 7.
The said ring D is made in halves provided with outwardly bent ends d³, Figure 6,
through which a clamping bolt d' is passed for the purpose of drawing the said
ring D, after the application of the cloth thereto as described, firmly down upon
the outer surface of the rim D¹. By this means the strain of the said cloth need
not fall wholly upon the hooks d'. In thus clamping the ring D" to its place, the
rods yield laterally as much as is necessary to permit the required movement
of the binding ring. To give greater strength to the reel-cloth at the points of its
attachment as described the said cloth is preferably provided with a broad hem or
border of stout ticking with which the fastening devices come in contact or with
which they engage.
To the bolting reel above described and externally to the cloth D10 are secured
any desired number of longitudinal blades or sweeps D's projecting outwardly into
proximity to the surrounding chest or cylinder B, and intended to carry the bolted
material or flour to openings provided for its discharge as hereinafter described.
The part of the improved bolt, herein denominated the flyer, and by which a
centrifugal impulse is given to the material to be bolted, is of peculiar construction,
consisting essentially of a relatively large cylinder or drum F of external diameter,
say, about six inches less than the interior of the bolting reel frame. The said drum
is composed-of-rigid-staves-closely-tongued-together-and-mounted-on-solid-heads F
rigidly-secured to the shaft E. Upon the external surface_of_the_said cylinder are
applied a number of wings, floats or blades F, F-which-are preferably-about an-
inch and three fourths in width and from six to eighteen inches long. The said
blades may be made of angle iron, either wrought or cast or malleable and are
attached to the drum by screws or bolts passing through one flange of the iron so as
to hold the other flange projecting outward as shown. The projecting flange or
blade should be somewhat inclined from a radial line of the drum, backward with
reference to the direction of motion as shown in Figure 2. One of the apertures ƒ³
for the fastening bolts f, f¹ by which the blades are secured to the drum is made
in the form of a slot arranged transversely as shown in Figure 11 so that the
blade may be fastened at any desired inclination from a direct longitudinal line
upon the drum.
Any desired number of these blades may be secured to the surface of the drum
and are set in longitudinal series or out of line, as preferred. Ordinarily the blades
above described will be set in a spiral arrangement or direction and, for the purpose
of giving less rapid feed, through the reel at its tail than in other parts thereof, of
the material being bolted, I set the blades which are located near the rear end of
the drum F at a less inclination longitudinally than the remainder of them, but by
means of their adjustable attachment to the drum, any desired change in their spiral
direction can at any time be made, and any desired effect as to rapidity of feed
obtained.
Some, or all, of the blades which are located at the extreme front end of the
drum F, are provided with an extension F³ directed inwardly over the head and
from the periphery of the drum towards its axis, and also forward with reference to
the direction of motion of the drum. The effect of this construction is, by the
rotation of the drum, to induce a current of air backward around the outside of the
drum F, and within or through the surrounding bolting-cloth D¹. In order to
provide for the admission of air to be thus conducted, the front reel-head D has
apertures do provided with slides or registers du, the latter serving to regulate the
amount of air admitted and the consequent force of the draught. In the lower

page_text: bolt shown in Figure 2 one of the extended wings F³ may be seen through one of
the openings d¹º in the reel head D.
The head D of the bolting reel substantially fills the space within the front
rim B' of the chest B, there being only sufficient space between the two to ensure
freedom of movement or non-contact of these two parts. The opposite end of the
chest B is open, except as partially closed by the flange b¹ of the rim B¹, as shown
in Figure 5. The tail of the bolting reel is open and the said reel terminates a
short distance within the chest B, so as to discharge its tailings inside the flange b¹.
To secure the separate discharge of the tailings from the chest, a spout B' is
provided, leading from the interior of the chest at the rear end thereof, and a blade
or sweep D Figure 5 is fastened to one of the arms D8 or otherwise secured to
the bolting reel frame in position to carry the tailings out through the said spout B³.
A rim or flange B₁ of wood or other material (preferably having lamb's wool
attached to its free edge) is fixed in the chest B opposite, and proximate to the
flange d' of the reel-rim D¹ so as to prevent the tailings from being mixed with the
flour passed through the bolting cloth.
From end to end of the chest B two longitudinal openings B' are provided, one
above the other, at the ascending side of the reel, for the discharge of the flour into
the conveyor boxes which are arranged externally to the said chest. The boxes
indicated by dotted lines in connection with the lower bolt in Figures 1 and 2
illustrate the arrangement of these conveyors when applied to a single bolt, and
those connected with the two upper bolts illustrate their preferred arrangement
when applied to a group of two. Two conveyor boxes G G₁ each provided with a
conveyor G² are placed in communication with each chest B, the upper box being
intended for the finished flour and the lower one, called the cut-off, for conducting
the flour that is imperfect to any desired point or machine for further finishing or
for other purposes. The lower of these cut-off conveyor boxes G₁ can also be made
to receive the tailings by providing a slide b³ in the tailing spout B³ near the chest B
so that the tailings will be carried forward to the lower passage B³ which will be
opened to receive them.
As a means for controlling the delivery of the bolted flour from the chest B to
one or the other of the conveyor boxes G G¹as may be desired, slides Bª are provided
preferably curved to conform with the cylindrical chest B and arranged to run
circumferentially of the said chest. Each of the said slides is provided with an
aperture 6³ arranged to stand opposite the lower opening B³ when the slide is thrust
upwardly in, as more plainly seen in Figure 8, which illustrates one of said slides
detached, and in Figure 2 wherein one of the slides is seen in place. The said
slides B are preferably made of sheet metal, say six inches wide or thereabouts,
and are held and directed by having their edges fitted in narrow metal guides b
arranged across the openings B³ of the chest as seen in Figures 5 and 9. In Figure 5
three of the said slides (at the right) are shown closed and the remaining ones open,
revealing the bolting reel cloth D10 through the passage B. Instead of using
transverse guides 6 the edges of the slides may be bent to interlock with each
other so that each slide will be guided by contiguous slides. The upper opening B³
in the chest B preferably will not extend behind the flange B' as there will
obviously be no occasion for taking the tailings into the upper conveyor and a
plain slide without apertures may be applied to the lower opening B³ where it leads
from the tailing compartment of the chest B.
By means of the slides B, any portion of the bolted material can be delivered to
either conveyor as may be desired, so that if a hole should be made in the reel t
cloth at any point and imperfect flour be passed into the chest B, then, by pushing
in the slide opposite the said hole, or as many neighbouring slides as are necessary,
the upper conveyor will be cut off at this point, and the imperfect flour will be
discharged through the apertures 63 of the slides into the lower conveyor. This
form of slides or other forms by which the flour may be sent to either upper or 5
lower conveyor as desired should be applied to each bolt or chest. In the case of a
lower bolt of a group, or of a single bolt; the slides above described are sometimes

page_text: reversed in their arrangement; that is to say they are arranged to draw upward
and made accessible over the top of the upper conveyor box. In this case, the
aperture 6³ will coincide with the upper passage B' when the slide is thrust in, and
the lower passage will be opened by raising the slides.
In the case of a single bolt, or of the lower one of a group of bolts arranged as
shown, I prefer to employ additional slides G³ which unite to form the bottom of
the upper box G and, by being drawn out, serve to open a communication between
the upper box G and the lower box G¹ as indicated in Figures 1 and 2.
The upper conveyor boxes G of a group of three bolts, are connected, as shown in
Figures 1 and 2, by a spout G' and both conveyor boxes belonging to the lower
bolt are provided with suitable discharge spouts G³ G. The lower conveyor box G¹
belonging in common to the two upper bolts delivers into the lower reel hopper H
through the spout G' shown in Figures 1, 2 and 5.
Within each feed spout H of the several bolts and arranged to catch the material
fed into the spout, is located a hopper H¹ having its bottom, and preferably its
sides also, made of slotted or perforated inetal or wire netting whereby dough balls
or foreign substances present in the material to be bolted and calculated to injure
the reel cloth, may be arrested; and a hand-hole is provided in the feed spout
through which such arrested substances may be removed.
In order that the hopper H' may not clog, it is mounted on a bracket or support
H pivoted at h¹ and having its inner arm h² directed downward so as to bear
against a circular cam face d³ on the head D, having one or more short projections
or prominences which serve to vibrate the bracket and hopper as the reel revolves.
The conveyors GQ' all carry from the rear to the front of the machine, as indicated
by the arrows in Figure 5.
The motions usually given to the several parts are relatively as follows that is to
sayThe central drum or flyer F and the surrounding bolting reel travel, pre-
ferably, in the same direction, the former or drum, at from, say, 100 to 200 revolutions
per minute or more, and the bolting reel at from eighteen to thirty revolutions
per minute or thereabouts. The conveyors run at any desired or suitable speed.
For the purpose of driving the several drums, reels and conveyors of a group of
three bolts from the same shaft I have devised the "drive "illustrated in Figures
3, 4 and 5 in which the shaft E of the lower bolt is provided with a driving
pulley E on its front end, over which passes the driving belt E' and outside of
which the said shaft has a supporting bearing on the bracket or arm A¹ as seen in
Figures 1 and 5. The said shaft E rotates in sleeves D' within the reel hubs
De D, and at its rear end is provided with the fixed pulley I from which the high
speeded parts or flyer drums E are driven throughout the group of bolts For the
drive here shown I prefer to employ rope or other round belts, but other foring
may be used. The pulleys are shown grooved to receive the round belts. Two
belts are employed, one R for the high speeds, and another for the lower speeded
part. The arrangement of pulleys on the various shafts, and of the tightening
devices employed with the belts R and R¹ are shown in Figure 3.
On the outer rear end of two shafts E3 and E' which correspond with the
aforesaid shaft E are fixed respectively the pulleys 112 equal in diameter to the
pulley I, and on the rear end of the conveyor shaft G is a loose pulley 13, also as
here shown, of the same diameter, all being arranged in the sanie vertical plane
with the driving pulley I of this high speeded series and connected by the fast
belt R. Behind these pulleys I, I, I and I³ or between the same and the rear ends
of the bolts, other pulleys are located as follows that is to say on the shaft G is a
fixed pulley I, on the hub D' is a fixed pulley 1° and on the similar hubs of the
upper bolts, similarly arranged on the shafts E³ and E' are fixed pulleys 1' I³ of
which the former is not shown, the same being, however, similar to the pulley Is
which is seen in Figure 5. These pulleys 1' 1º 17 and 1' are in the same vertical
plane with each other and with the pulleys I and I on the lower conveyor shafts,
and are connected by the slow belt R¹.
A belt tightener bearing two loose pulleys J J¹, situated respectively in the

page_text: planes of the two series of pulleys above described, and located at the left of the
upper left hand bolt pulleys as shewn in Figure 3 completes the series of pulleys
over which the belts R and R' are passed. The construction of the said tightener
will be hereinafter described. .
The unequal speeds of the two belts R and R' are obtained as follows that is to
say On the inner end of the hub of the loose pulley I is cast or secured a small
pinion which engages with a larger spur wheel g on the rear end of the shaft G8 as
seen in Figure 5, and on the front ends of the shafts G and G³ respectively are
secured, intermeshing gear-wheels g' g2 By means of the unequal gear wheels i, g,
arranged as shown, the speed of the conveyor shafts GB and G is reduced from that
of the drum shafts, and the pulley I becomes the driver of the low speeded belt R¹.
The pulleys in either series may be of unequal diameter if desired, so as to give
any required speed to any part driven thereby. For the particular arrangement of
the belts R and R' by which the proper direction of rotation is given to the several
parts driven thereby reference is made to Figure 3, it being understood that from
the point in the said figure at which the belt R₁ passes to the pulley 17, to the point
at which it leaves the pulleys 1', the said belt R³ is hidden by the belt R. In this
arrangement neither belt is crossed.
The belt tightener is supported by an arm J³ secured to the end of the chest or
to the rim B¹ thereof, and is composed of the pulleys J and J¹ mounted on a trans-
verse shaft J' which is supported by an arm Ja adjustably secured in a recess of
the fixed head J. The arm J and recess J are preferably squared in order to
support the pulleys J and J' in a vertical position, and longitudinal adjustment
of the arm Jis effected by means of a screw passing through the head J' and
screwed into the end of the said arm J³.
For the purpose of allowing the tightening pulleys to yield more or less, a
spring J? is.interposed between the head J and the nut or- hand. wheel.J.about.
the screw shaft. This is desirable, more especially, in the use of V-grooved pulleys
-and-round-belts, because-unevenness-in-the-thickness-of-the-belt-allows-it-to-sink-
inore or less into the grooves and to thereby vary its tension. It will be noticed
that the belt R' is the longer of the two, so that in tightening the belts, this belt
will bo less strained than the other R; but, as the latter runs at the higher speed,
it requires to be the more taut of the two and is likely to become loose more
rapidly in use, so that connection of the two tightener pulleys on one shaft is
calculated to give about the effect desired. If preferred, however, each of the said
pulleys may be separately movable.
Some of the advantages resulting from the drum or barrel form of the flyer,
herein described, would be obtained by locating a non-rotating or a loose drum
within the skeleton form of flyer heretofore used, and causing the blades, supported
independently of the drum, to revolve outside of and proximate to the latter. This
construction would, obviously, operate to prevent the material being bolted from
falling through the flyer to the bottom of the reel and cause such material to be
caught by successive arms of the flyer, provided the latter run closely to the drum.
Such construction would, manifestly, be inferior to that herein set forth wherein
the drum directly supports the blades and revolves with them. So far, however,
as the possible construction referred to will perform any function of my machine, I
wish it to be regarded as the equivalent thereof, and as being comprised in the said
invention.
The effect of overloading the reel by the descent of the material being bolted
through or between the flyer blades is in some cases prevented by a construction
in which the flyer drum or shaft is relatively smaller than that above described,
provided the blades are correspondingly widened and extended inward to the drum
or shaft. Such a construction will present a flyer having a series of troughs closed
at the bottom, so that the material being operated upon cannot pass through the
flyer to the bottom of the reel. While I prefer that the drum shall be of relatively
large diameter and provided with narrow blades, I wish it to be understood that a

page_text: fyer having troughs included between adjacent blades and closed or substantially
closed at the bottom is a feature of the said invention
The perforated hopper H' is constructed to bear continually by means of the
bracket arm h² against the cam face de but it is evident that, in place of a con-
tinuous elevated face d³ provided with prominences, the head may have the desired
projections arranged in a circle so as to strike the said arm h² and that, except
when so struck, the hopper and bracket may be upheld by any convenient stop
arranged to engage either with the hopper or bracket. Such projections are meant
to be included in the expression "cam face."
It will be understood that, by opening any one of the slides G³ which divide the
lower pair of conveyors, that portion of flour received by the conveyor box behind
the opened slide will be discharged into the lower conveyor, and the remainder will
go forward to the spout G5 which delivers to the packer. The spout Ge which
takes the imperfect flour from the lower conveyor of the lower bolt may deliver to
an elevator or conveyor which will carry it back to either bolt in the machine or
will send it to any other point for further treatment or disposal.
Having thus fully described the said Invention as communicated to me by. my
foreign correspondent and the manner of performing the same I wish it understood
that I claim:-
First In a horizontal centrifugal bolt or bolting machine, the combination of
an outer shell, a reel, two or more revolving continuously arranged longitudinal
flyer blades, and a central drum having a close or continuous peripheral surface, all
arranged and operating substantially as described, and for the purposes set forth.
Second-In a horizontal centrifugal bolt or bolting machine, the combination,
with the outer shell and reel, of a flyer having a number of longitudinal troughs
or recesses in its circumferential surface, the said troughs being closed at thoir
bottoms and embraced laterally by longitudinal, spirally arranged flyer blades,
whereby material falling into the said recesses is prevented from falling to the
bottom of the reel, substantially as described, and for the purposes set forth.
Third In a horizontal centrifugal bolt or bolting machine, the combination
with the outer shell and with the reel, of a flyer consisting of a peripherally closed
drum approximating in diameter that of the reel, and provided with longitudinal,
spirally directed blades applied to the circumferential surface thereof, substantially
as described, and for the purposes set forth.
Fourth In a horizontal centrifugal bolt or bolting machine, the combination,
with the surrounding bolting reel, of the inner drum and a number of longitudinal
blades, each separately adjustable and shorter than the length of the drum, secured
to the drum surface but arranged together to operate as a continuous blade or
series of continuous blades, for the purpose of acting at all points of the reel
opposed to the drum, substantially as described.
Fifth In a horizontal centrifugal bolt or bolting machine, the combination,
with the bolting reel, of an inner flyer-drum constructed with one or more series of
short blades arranged substantially longitudinally of the flyer, so as to throw the
material being acted upon outward against the bolting reel, the said blades for a
part of the length of the flyer being slightly inclined from a longitudinal direction,
for the purpose of feeding the material along in the reel, and those near the tail of
the reel being less inclined or otherwise set so as to retard the progress of the
material lengthwise of the reel, substantially as described.
Sixth In a horizontal centrifugal bolt, or bolting machine, the combination of
an outer stationary shell, an inner rotating bolting reel, and a central drum having
a close or continuous peripheral surface, the said drum being provided with longi-
tudinal blades on the said surface arranged to operate together as a continuous
blade or series of continuous blades, and having a rotary motion in the same
direction with, but at a higher speed than, the reel, whereby material being bolted is
prevented from overloading the bottom of the said reel, substantially as described.
Seventh In a centrifugal bolt or bolting machine, the combination, with the
flyer drum F and with the reel having an opening or openings in its front end for

page_text: the admission of air, of oblique blades applied to the front end of the drum to
induce an air current through the reel-head by the rotation of the drum, substantially
as described.
Eighth In a reel, the combination with a fastening for securing the reel cloth
at one end thereof, of an adjustable fastening for the opposite end consisting
essentially of a contractible clamping hoop D¹ provided with external hooks ď
and tension rods d³ combined with the reel-rim D³, substantially as described.
Ninth In a centrifugal bolt or bolting machine, the combination, with the feed
spout having a door h, and with the reel-head provided with a cam face d, of an
apertured hopper H¹ pivotally mounted within the spout, engaged with the cam,
and accessible from the door h, whereby objectionable substances in the material to
be bolted are retained and may be removed, substantially as described.
Tenth A group of three centrifugal bolts or bolting machines mounted on a
single frame and forming a single machine, two of the said bolts being elevated
equally and the third arranged centrally beneath them, in combination with
conveyors and a spout or spouts forming part of the machine, whereby material
may pass from either of the elevated bolts to the lower one, substantially as
described.
Eleventh In a group of two or more centrifugal bolts or bolting machines,
the combination of two of the said bolts arranged side by side, enclosing chests
therefor provided with discharge openings on their adjacent sides, and a conveyor
box or boxes located between the said two bolts and common to both, the moving
parts in the said bolts which carry the bolted flour out of the chests, being arranged
to revolve in opposite directions inwardly and upwardly, substantially as
described.
Twelfth-As a means for communicating reduced motion from a flyer shaft to
the reel and conveyor shafts in a centrifugal bolt, the combination with a rotating
reel, a flyer and two parallel conveyors, of gearing connecting the conveyor shafts
with each other, reducing gearing leading from the flyer to one of the said conveyor
shafts and gearing leading from the other of the said conveyors to the reel,
substantially as described.
Thirteenth-In a group of three centrifugal bults or bolting machines arranged
as shown in the drawing the combination with the flyer shaft E of the driving
bolt E the conveyor shafts Gs and Go the gear wheels g, g' and g² the fixed pulley 1*
the loose pulley I having the pinions, the flyer pulleys I, I' and 12 arranged in
the same plane with the pulley I³ the reel pulleys I 18 and 1º in the same plane
with the pulley I the conveyor pulleys Is and 16 also in the same plane with the
pulley I, the belts R and R' and the tightening pulleys J and J' arranged in the
respective planes of the said belts and located at the left of the pulleys l' and I'
substantially as described.
Fourteenth In a group of centrifugal bolts or bolting machines, the combination
with the flyer, the reel and conveyor shafts and their pulleys and with the belt or
belts forming the "drive" of the group, of the fixed head J* provided with a
recess J10; the arm Ja supporting a pulley or pulleys on an axis J at right angles
to the said arm, a screw j³ Jº arranged and applied as shown in the drawing and
a spring J' interposed between the head Jʻ and the wheel or head Jª, all substantially
as described, and for the purposes set forth.
In witness whereof I the said William Robert Lake have hereunto set my
hand and seal this Seventh day of May in the year of our Lord One
thousand eight hundred and eighty three.