Improvements in Carding Engines.
Year: 1890

page_text: Date of Application, 11th Nov., 1890
Complete Specification Left, 4th Aug., 1891-Accepted, 5th Sept.. 1891
PROVISIONAL SPECIFICATION.
Improvements in Carding Engines.
We, JAMES ALFRED HOLDSWORTH and CHARLES HENRY WOODS of the firm
of Holdsworth Brothers of New Stone Mill, Bolton in the County of Lancaster,
Cotton Spinners, do hereby declare the nature of our said invention to be as
follows:-
This invention relates to improvements in carding engines and has for its object
that of providing means for allowing the entire surface or width of the carding
cylinder and doffer to be covered with filletting, and consists in forming a groove on
the outer edges of the rim of each to receive elastic or other metallic rings in the
form of angle irons, each being secured thereto by two or more screws or their
equivalents, which is effected in a better and more substantial manner than hitherto.
If desired the elastic or other metallic ring can be made flat and pressed into the
groove and hammered over to form an edge slightly above the outer surface of the
cylinder and doffer, and slightly below the surface of the wire. This invention is
applicable to either new or existing carding engines, in the latter case the grooves
can be turned in the edges of the rims of the cylinders and doffers without removing
them from the framing. The periphery of each elastic or other metallic ring can
be turned up by turning or grinding after being fixed in position.
Dated the 10th November 1890.
EDMUND CHADWICK,
Agent.
COMPLETE SPECIFICATION.
Improvements in Carding Engines.
We, JAMES ALFRED HOLDSWORTH and CHARLES HENRY WOODS of the firm
of Holdsworth Brothers, of New Stone Mill, Bolton in the County of Lancaster,
Cotton Spinners, do hereby declare the nature of our said invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
31
This invention relates to improvements in carding engines and has for its object
that of providing means for allowing the entire surface or width of the carding
cylinder and " "doffer to be covered with filletting, and cousists in forming a groove
on the outer edges of the rim of each to receive elastic or other metallic rings in
the form of angle irons, each being secured thereto by two or more screws or their
equivalents, which is effected in a better and more substantial manner than hitherto.
If desired the elastic or other metallic ring can be made flat and pressed into the
groove and hammered over to form an edge slightly above the outer surface of
the cylinder and "doffer," and slightly below the surface of the wire. This inven-
tion is applicable to either new or existing carding engines, in the latter case the
grooves can be turned in the edges of the rims of the cylinders and " "doffers"
without removing them from the framing. The periphery of each elastic or other
metallic ring can be trued up by turning or grinding after being fixed in position.
Fig. 1 is a part sectional elevation of side and rim or periphery of cylinders and
"doffers" employed in carding engines provided with slot or groove forming part
of our improvement.
Fig. 2 is a part sectional elevation of side and rim or periphery of carding engine
cylinders and "doffers" showing elastic or other metallic ring driven or forced in
slot or groove before being bent.

page_text: Fig. 3 is a part sectional elevation of same showing position and form of clastic
or other metallic ring or angle iron.
Fig. 4 is a part side view of a carding cylinder or "doffer" with our invention
applied and the means for securing the same thereto, and
Fig. 5 is a sectional elevation through line M O in Fig. 4.
A represents a part sectional elevation of side and rim or periphery of a carding
engine cylinder and "doffer," and B. the filletting secured thereto in the ordinary
manner. It is well known to those conversant with carding engines that it is
customary to leave a small space on the edges of the peripheries of cylinders and
"doffers" free from filletting in order to prevent the outside wires being damaged
or bent by contact with the casing or framing enclosing the same. To overcome
this defect and allow of the whole surface of the rim or periphery of the carding
engine cylinder and "doffer" being covered with filletting straight metallic plates
have been screwed to the sides of same. Our invention is an improvement on this
latter construction. This we effect by providing the edges of carding cylinders
and "doffers" with the slot or groove C by means of a turning tool when they are
being turned in a lathe. In applying our invention to existing carding engine
cylinders and "doffers" the slot or groove C can be turned in without removing
them from the carding engine framing. In the slot or groove C we force or press
the strip or strips D, which may be of steel, brass, copper, iron, or other suitable
metallic material; the projecting part being hammered or bent to the form and
position shown in Fig. 3, after which the edge G can be trued up by turning or
grinding to the desired or requisite diameter. By pressing, hammering, or bending
the projecting part of the strip D to the form shown in Fig. 3 it is securely fastened
in the slot or groove C. The strip D can be in one or more pieces or segments,
being secured at the joints by the screws E as shown in Figs. 4 and 5. If desired
the strips D can be in one or more pieces or segments of angle form as shown in
Fig. 3, being forced into the slot or groove C by any convenient means and secured
at the joints as before described. The outer edge G of the strip D, when in
position, is below the surface of the wire edge H of the filletting B so as not to
interfere with the working of the same or prevent grinding. When the wire
edge H of the filletting B is worn level with the edge G of the strip D the
filletting will require renewing.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is :-
1. In combination with carding engine cylinders and "doffers" the use and
employment of the slot or groove C for the purpose specified.
2. As means for protecting the edges of filletting employed on carding engine
cylinders and "doffers as hereinbefore described the strip or strips D occupying
the slot or groove C in the edge of carding cylinders and "doffers" and hammered,
pressed or bent to the requisite form or position substantially in the manner described
and as illustrated in the drawings.
3. In combination with carding engine cylinders and "doffers" the use of angle
pieces or segments D pressed or forced into the slots or grooves C on the edges of
the said cylinders and "doffers," substantially as described and shown in the
drawings.
Dated Anost 1st 1801
EDMUND CHADWICK,
Agent.