Year: 1886

page_text: I, HENRY HARRIS 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 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 principally to an improvement in that class of flour-bolts
or bolting mills which are composed of a revolving reel provided on the inner side
of its bolting surface with elevating ribs or contrivances whereby the material
under treatment is elevated and carried around with the bolting surface, thereby
distributing the material constantly over the greater portion of the bolting surface.
The objects of the said invention are to provide means for separating and
removing the light floating impurities from the more valuable particles, and
thereby improving the quality and color of the bolted material; to increase the
bolting capacity of the machine and to render the said machine more efficient in
other respects. My invention consists to that end of the improvements hereinafter
set forth.

page_text: A represents the stationary case of the machine; B the revolving reel, and b the
shaft on which the reel is mounted, and which is journalled in bearings C, C. The
reel-frame consists of a head D located at the feed end of the reel, a head E located
at the tail end of the reel, and longitudinal ribs F connecting the heads D and E
on the inner side of the bolting cloth e. The latter is stretched around rings ƒ i
which rest against short projections f¹ formed on the outer sides of the ribs F, so
that open spaces g are formed between the ribs F and the bolting cloth e. The
head D at the feed end of the reel is provided with a central opening / which is
surrounded by a forwardly projecting collar H. I, I represent arms which connect
the head D to a hub i by which it is secured to the shaft b.
]
J represents a ring or collar which fits snugly within the collar H and which is
attached to the rear side of the front wall a of the case of the machine. The ring J
is provided with a flange ; which rests against the wall a, and with radial arms k
seated in sockets K which are secured to the wall a. The sockets K are somewhat
deeper or longer than the arms k so that each arm is capable of a certain longi- 1
tudinal movement in its socket, whereby the ring J is enabled to adjust itself on
the case to the position of the reel-head D when the relative positions of the recl
and case become altered by shrinkage of the wood or from other causes. This
adjustability of the ring J prevents the binding of the parts on each other, and
ensures a snug fit of the collars H and J. at all times.
L represents the feed spout, which delivers the material to be bolted into the
chamber formed by the ring J, which latter is provided with an inclined bottom l
whereby the material is directed into the reel through the opening ½ of the
head D.
m represents an internal screw-thread formed in the collar H in such manner
that the rotation of the screw-thread with the reel will cause any particles entering
between the collars H and J to be worked backward into the reel.
N represents a deflector or bridge arranged lengthwise in the upper portion of
the reel and made convex on its upper side and concave on its lower side, so as to
form on its under side a passage or chamber N¹. The deflector N is preferably
curved on one side concentric with the ascending side of the reel, as shown at n
and is inclined at its opposite side, as shown at n¹. The inclined portion n¹ is
provided on its outer side with inclined deflecting boards o whereby the material
falling on this inclined portion is deflected toward the tail of the machine.
front end of the deflector N is supported on the shaft b by arms P and a hub p, in
which latter the shaft b revolves. The rear end of the deflector is provided with
arms Q and a hub q which latter is secured by a set-screw or otherwise to an
extension r of the bearing C₁. By this means the deflector N is held stationary
within the reol.
The
The head E at the tail end of the reel is provided with a central discharge
opening 8, elevating ribs a¹, and a deflecting cone s³ whereby the tailings are
discharged from the reel and delivered into the discharge spout T in a well-known
manner.
The material to be bolted is introduced into the reel through the spout L in such
quantities that the reel is well loaded and the feed spout is made so large that
copious quantities of air are permitted to entor the reel with the material to be
bolted. The ribs F elevate a large portion of the material which lies upon the
bottom of the reel, and distribute the same constantly over a large portion of the
bolting surface. A portion of the elevated material runs back over the bolting
surface and is bolted. Another portion is elevated above the deflector N and falls
on the same. The deflector prevents this portion of the material from falling
directly on the material which rests on the bottom of the reel and returns it to the
bolting surface; but its most important function is to form an eddy chamber in
which the light floating impurities can accumulate and separate from the heavier
and more valuable portions of the material. The chamber N₁, formed on the under
4

page_text: side of the deflector N, is protected against the disturbing action of particles falling
through the same, and the light floating impurities therefore remain in this com-
paratively quiet space and pass slowly with the air toward the tail end of the
machine and escape finally through the discharge opening & with the tailings. The
heavier and more valuable particles, which may have become suspended in the air-
current passing through the reel, settle in this chamber N₁ and are returned to the
mass of material resting on the bottom of the reel. By this means the reel can be
fully loaded and a large portion of the material can be constantly kept in contact
with the bolting cloth without causing specks and other light impurities to pass
through the bolting cloth, thereby increasing the bolting capacity of the machine
and at the same time improving the quality of the bolted material. An air-current
sufficient to remove the light impurities is caused by the revolution of the reel and
its feed and discharge devices; but if desired, a fan or other propelling device may
be employed for the purpose. The material which falls from the elevating ribs
upon the deflector is deflected by the latter partly against the bolting cloth and
partly against the ribs, which latter in turn dash the material and throw it against
the deflector, and by this repeated dashing the material is loosened, and the light
impurities are caused to become suspended in the air, while the heavier valuable
particles are caused to pass through the bolting cloth, thus enabling the upper
portion of the reel to perform a large share of the operation of bolting. The con-
centric portion n of the deflector or bridge N, which is arranged opposite the
ascending side of the reel, confines the falling material in a narrow space, where it
is met by the ascending ribs and gently dashed or thrown against the bolting cloth.
Part of the material passes through the open spaces g between the ribs F and the
bolting cloth, whereby the bolting capacity of the reel is increased, and the material
is prevented from accumulating on the ribs to such an oxtent as to interfere with
the dashing action of the same. The inclined portion n¹ of the deflector, which is
arranged opposite the descending portion of the reel, directs the descending material
against the bolting cloth, and the deflecting boards o give the material a tendency
to move toward the tail of the machine. The two parts of the deflector diverge
downwardly and form a bridge resembling an arch, with its lower ends distended
and separated by a wide opening, which permits all the heavy and valuable
particles which may enter the space under the machine to drop upon the mass of
material below, while it allows at the same time the free entrance of the floating
material into the quiet space or chamber N¹ under the arch. This floating material
escapes finally from the chamber N¹ through the spaces between the arms Q,
whereby the rear end of the deflector N is supported, as represented in Figure 2.
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 wish it understood that I claim
First. The combination, with a revolving reel provided on its inner side with
elevating ribs F separated from the bolting surface by open spaces 9, of a
deflector N provided with a wall n concentric with the reel and separated from the
bolting surface by a narrow space, through which the ribs F move freely and
through which the material is elevated and allowed to dash again upon the said
ribs, substantially as set forth.
Second. The combination, with a revolving reel provided on its inner side with
elevating ribs, of an arch-shaped deflector N, composed of a concentric portion n
arranged opposite the ascending side of the reel, and an inclined portion having
deflecting boards o, and arranged opposite the descending side of the reel, sub-
stantially as set forth.
Third. The combination, with the casing A provided with a bearing C and a
bearing Chaving an extension 7, the reel B and the reel-shaft b, of the deflector N
secured at one end to the extension r and supported at the opposite end upon the
shaft b. substantially as set forth.

page_text: Fourth. The combination, with the stationary case and the reel-head D, of a
ring J joined to the head and supported movably on the case, whereby the ring J
can adjust itself on the case to the position of the reel head, substantially as set
forth.
"
Fifth: The combination, with the stationary case and the reel-head D, of a ring J
joined to the said head and provided with arms and sockets K, secured to the
case and holding the arms ke loosely, substantially as set forth.
Sixth. The combination, with the feeding ring J, of the reel-head D provided
with a collar H having an internal screw-thread, substantially as set forth.