Improvements in the Construction of Dressing Machines Used for Bolting, Sifting, Dressing, Purifying, or Separating Meal, Grain, or other Substances or Material.
Year: 1886

page_text: Date of Application, 4th Oct., 1886.
Complete Left, 4th July, 1887.
Complete Accepted, 5th Aug., 1887.
Improvements in the Construction of Dressing Machines Used for
Bolting, Sifting, Dressing, Purifying, or Separating Meal, Grain,
or other Substances or Material.
I, RALPH HOWARTH of 24 Manchester Road Rochdale in the County of Lancaster,
Corn Miller, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in the construction of dressing machines,
used for bolting, sifting, dressing, purifying, or separating meal, grain, or other
substances or material, and has for its object to utilize and bring into constant
function nearly the whole of the circumference of the covering of the reel or cylinder,
employed in such machine, whereby very much more and better work is produced, &
the substance or material is more regularly distributed in the reel or cylinder from
end to end, than heretofore has been the case.
To this end I form in the first place, the frame of the reel or cylinder of a suitable
number of thin longitudinal metal bars, which are fastened to and carried at the end,
and between if needful, by two or more rings fixed onto a rotating shaft.
Over these metal bars, are passed circumferentially, hoops, around which is fixed,
the covering of the reel or cylinder.
In the second place I fix the internal worm generally employed in such reel or
cylinder, for carrying the material or substance from end to end, at a little distance,
say about 3 inches away from the covering.
In the third place I insert between the covering and worm a suitable number (say,
for instance, six), of longitudinal thin metal or other strips, acting as buckets.
These buckets are slightly bent on one edge and fixed to the exterior edge of the
worm in such a manner that the bent edge points towards and is nearer to the
covering than the other edge of the bucket.
When the reel or cylinder is rotated a large portion of the substance or material
being treated is carried up by these buckets, in the space between the covering and
the worm, and while so carrying up, the substance or material, they continuously
distribute a portion of their load, which they direct against the covering of
the reel.

page_text: The distance from the distributing point of the bucket to the covering of the reel
is so arranged as to cause the bucket to carry sufficient material over the top as will
enable it to continue distributing all the way down again to the bottom, where it can
reload.
The function of these buckets is, to keep nearly the whole of the covering surface,
spread over with the material to be treated, instead of only a small portion being
covered, as heretofore.
The object of placing the buckets next to the covering, and the worm away from
the covering, is to cause the fine heavy material to travel slowly and near the covering,
while the coarse light stuff is more under the influence of the worm and is quickly
carried out of the machine, thus giving a better dressing.
This effect is also produced by the way in which the buckets - distribute the
material onto the dressing surface instead of its falling on in a solid body, as
hitherto.

page_text: Improvements in the Construction of Dressing Machines Used for
Bolting, Sifting, Dressing, Purifying, or Separating Meal, Grain,
or other Substances or Material.
I, RALPH HOWARTH, of 24 Manchester Road Rochdale in the County of Lancaster
Corn Miller, 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 improvements in the construction of dressing machines
used for bolting, sifting, dressing, purifying, or separating meal, grain, or other
substances or material, and has for its object to utilize and bring into constant
function nearly the whole of the circumference of the covering of the reel or cylinder,
employed in such machines, whereby very much more and better work is produced
and the substance or material is more regularly distributed in the reel or cylinder
from end to end, than heretofore has been the case.
And in order that my invention may be better understood I have caused to be
appended hereunto one sheet of drawings marked with letters of reference indicating
like parts in the various figures.
Fig. 1 is a side elevation and partly section of a reel or cylinder constructed
according to my invention.
Fig. 2 a cross section & Fig. 3 also a cross section showing a
thereof.
modification
In carrying out my invention and referring more particularly to Figs. 1 & 2, I
form in the first place, the frame of the reel or cylinder of a suitable number of thin
longitudinal bars a preferably of metal, which are fastened to and carried at, the ends
and between, if needful, by two or more rings b fixed onto a rotating shaft c.
Over the bars a are passed circumferentially, hoops c¹, around which is fixed the
covering d of the reel or cylinder.
In the second place I fix the internal worm e, generally employed in such reels or
cylinders for carrying the material or substance from end to end at a little distance,
say about 2 inches, away from the covering d.
In the third place I insert between the covering d and worm e, a suitable number
(say for instance, twelve) of longitudinal thin metal strips or equivalents, acting as
buckets f.
These buckets are slightly bent on one edge and fixed to the exterior edge of the
in such a manner that the bent edge f¹ points towards and is nearer to the
covering d, than the other edge of the bucket f..
worm e,
When the reel or cylinder is rotated, a large portion of the substance or material
under treatment is carried up by these buckets fin the space between the covering &
the worm e,
& while so carrying up the substance or material, they continuously
distribute a portion of their load, which they direct against the covering d of the reel
added by reason of the centrifugal force.

page_text: The distance from the distributing point of the buckets f to the covering is so
arranged, that the buckets f will distribute the material continuously on the up-side
of the reel and carry sufficient over the top to deliver onto the down side of the reel
or cylinder, in order to keep that side nearly covered and constantly dressing.
The function of these buckets f is to keep the whole of the surface of the covering d
spread over with the material to be treated, instead of only a small portion being
covered as heretofore.
.
The object of placing the buckets next to the covering d, and the worm e away
from the covering d is to enable the buckets f to fill before the worm e can push the
material to the tail end and to cause the fine heavy material to travel slowly and near
the same on account of its greater specific weight, while the coarse light stuff is more
under the influence of the worm e and is quickly carried out of the reel or cylinder
thus giving a better dressing.
This effect is also produced by the way in which the buckets f distribute the
material onto the dressing surface d instead of its being blown or thrown on or falling
on in a solid body, as hitherto.
The buckets
circumstances.
may be fixed stationary or may be made adjustable, to suit
Referring to Fig. 3 which represents a modification of my invention, applicable
when treating a certain class of material, I form the buckets of a slightly different
section, than hereinbefore described, and instead of employing a continuous worm e to
carry the material from end to end, I suitably arrange the same in segments e¹ so as
to leave an open space between the buckets f.
Having now particularly described and ascertained the nature of this invention and
in what manner the same is to be performed I declare that what I claim is
-
1st. The general arrangement and combination of parts constituting my improve-
ments, for the purpose and substantially in the manner herein before described and
shewn.
2nd. Providing the interior of the reel or cylinder with a suitable number of
buckets for their equivalents, substantially as set forth.
3rd. Providing the interior of the reel or cylinder with a suitable number of
buckets for their equivalents, employed in combination with and between a worm e
or its equivalent, and the covering d of the reel or cylinder, substantially as set
forth.
4th. Causing dressing reels or cylinders, not working on the centrifugal principal,
to dress over a considerable portion of that side, that is travelling downwards, for the
purpose specified.
5th. Causing the material to travel to the tail end of the reel or cylinder of dressers,
by propelling only that portion of the material, which is furtherst away from the
covering d, for the purpose specified.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester,
Agents to Applicant.