Year: 1898

page_text: BRYAN CORCORAN, 31, Mark Lane, London, E.C., Engineer, do hereby declare
the nature of this invention to be as follows;
_
It is usual to fit bolting cloth silk gauze, woven wire, and the like to reels
by lacing nailing glueing or otherwise affixing the sifting material on to the
longitudinal bars or the rods of the reel.
My invention is a reel of adjustable circumference, which can be expanded
and so tighten the covering after the said covering has been loosely placed in
position on the reel, the covering being made with or without break or opening
in its circumference.
My invention enables the covers to be easily and quickly changed which is
a matter of very great importance.
In carrying out my invention I employ a frame or reel of polygonal section
and of convenient length capable of being rotated about its axis and having
longitudinal bars or rails running parallel or more or less at an acute angle
with the axis and whose distance from the axis may be altered thereby increasing
or decreasing the circumference of the reel.
To cause this alteration I make use of an arrangement of levers and links
springs screws knuckle joints and elbows or other convenient means.
In conjunction with this frame I employ a cover of more or less pliable sifting
material that may have no break or opening in its circumference and which may
be drawn on to the reel or frame when the bars are nearest the axis that is to
say when the circumference is at its least the circumference being afterwards
increased until the covering is tight, or the cover may be made with a joint so
that it can be put around the reel instead of the reel being inserted into tho
cover, the tightening still being done by afterwards expanding the reel, the
reel and covers may be either of equal diameter their whole length or may be
tapering.
Also I claim to make covers of rigid material such as perforated metal plates
or stout woven wire the joints at the angles of the faces of the polygon being
hinged, such covers are tightened on the reel in the same way as the covers of
pliable material and can be folded up into small space when taken off the
reel.

page_text: 1
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BRYAN CORCORAN, 31, Mark Lane, London, E.C., Engineer, 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:-
The usual method of clothing sifting reels with bolting cloth silk gauze woven
wire & the like, is by lacing nailing glueing or otherwise affixing the sifting
material on to the longitudinal bars or rods of the reel.
My invention is an improved method of fixing & consists of a reel of adjustable
circumference which can be expanded so as to tighten the covering after the
said covering is loosely placed in position on the reel the covering being made
either with or without break or opening in its circumference, it also enables the
cover to be tightened after it has become stretched by wear.
My invention enables the coverings to be quickly put on & tightened ready
for work a matter of great importance since one reel with suitable interchangeable
covers may be used for various purposes instead of a separate reel being needed
for each as in the case of pigments one machine may be used for many colours.
In carrying out my invention I employ a frame or reel of polygon section
capable of being rotated about an axis, and having longitudinal bars or rails
whose distance from the axis may be altered thereby increasing or decreasing the
circumference of the reel.
:
I also use in connection with the expanding frame a cover of either flexible
or rigid material which is strained quite tight when the frame is expanded ready
for work.
In the case of the cover being made of a rigid or partially rigid material,
which cannot be bent without damage, it is so arranged that when taken off the
frame and not in use it can be folded flat so that it occupies little space and is
not subject to injury.
In order that my said invention may be more fully understood I shall now
proceed to more particularly to describe the same and for that purpose shall refer
to the several figures on the annexed sheet of drawings the same letters of refer-
ence indicating corresponding parts in all views of the same arrangement.
Fig. 1 of my drawings is a side elevation of a hexagon reel with parts of
the clothing shown in position.
Fig. 2 is an end view of the same, Fig. 2 is an end view of arm & rail when
in position of minimum circumference. A is the cover of flexible material having
in this case a longitudinal break in its circumference extending its whole length
and which may be secured by means of laces hooks and eyes buttons or other
convenient fastenings the first three methods being shown. Bare the longitudinal
rails supporting the said covering, D is the axis of the reel. E are the arms
carrying the longitudinal rails B, the distance apart of the ends of the arms
nearest the axis may be increased or decreased, by means of the right and left
handed screw C which is turned by means of the hand wheel C it will be readily
understood that when the arms E are drawn together by the screw C the distance
of the rail B from the axis is increased and the circumference of the reel thereby
expanded the dotted lines G 1 show the rail when nearest the axis and therefore
in the position of least circumference and ready for the covering to be loosely
placed on the reel.
Fig. 3 is a side elevation of my arrangement shewing a smaller reel. Fig. 4
is an end view of the same, Fig. 4 is another end view showing more clearly
the rail when nearest the axis:

page_text: Hare the longitudinal bars supporting the covering which is shown in this
case of rigid material which can be hinged at the angles of the polygon or
jointed by means of strips of flexible material as shown in Fig. 4 this enabling the
cover to be strained while in position for working and folded flat when not in
use, the rigid perforated plates or stout woven metal may also be jointed with
links at the angles. I are the arms supporting the bars these are hinged at both
ends and are so shouldered at their ends nearest the axis J that they are rigid
when the bars are at the maximum distance from the axis or thereabouts. The
adjustment is made by sliding the boss K carrying the arms along the shaft,
the dotted lines show the reel when in position for the cover to be put on or
removed.
Fig. 5 is
a front view and Fig. 6 an end view of a somewhat
similar arrangement the drawing showing only one of the rails adjust-
able but any number may be made si adjustable. L are the longi-
tudinal rails M are the arms carrying them each arm carrying an adjust-
able rail has a joint in its length which allows the rail to be moved towards the
axis the cover being tightened by straighening the elbow joint of the arm M
the dotted lines show the rail when nearest the axis ready for the covering to
be placed in position loosely. The covering is in this case shown without joint.
Fig. 7 is a side view and Fig. 8 an end view of a spring frame for a similar pur-
pose the rails N on which the covers are stretched are fixed rigidly at O and have a
tendency to spring towards the axis of the reel, the expansion of the frame is
caused by the end of the rods being forced up the incline P they being retained
in position by dropping into the hollow Q either one or any number of the
rails may be so adjustable, the dotted lines show the rails in position of least
circumference.
I do not confine myself to the foregoing methods of carrying out my invention
but they will serve to illustrate the principle of my invention.
Having now particularly described and ascertained the nature of my said
invention and the manner in which the same is or may be used or carried into
effect, I would observe in conclusion that what I consider to be novel and original
and therefore claim as the invention secured to me by the hereinbefore in part
recited Letters Patent is :-
"
First. The employment of an expanding frame substantially as and for the
purpose hereinbefore described.
Second. The combination of an expanding frame with a cover of flexible or
rigid materials either with or without break or opening in its circumference.
Third. The employment of a cover of rigid material composed of sheets of
perforated or woven metal, the sheets being connected by means of flexible strips
er links with sufficient space between the sheets to allow the whole cover to be
folded flat when taken off and not in use.
ו'ד
800
1
1
1800