An Improved Method of Constructing the Rollers for Wet Spinning Frames.
Year: 1893

page_text: Date of Application, 16th Jan., 1893
Complete Specification Left, 13th Oct., 1893—Accepted, 18th Nov., 1893
PROVISIONAL SPECIFICATION.
An Improved Method of Constructing the Rollers for Wet Spinning
Frames.
JOSHUA VALENTINE EVES of Forth River Mills Belfast Ireland Mill Manager,
do hereby declare the nature of this invention to be as follows:-
The drawing and retaining rollers of wet spinning frames consist of a shaft of
wrought iron or steel with bosses or rings thereon which are fluted; these bosses
or rings are made of brass of suitable density and hardness, and the spaces between
the rings or bosses (excepting the journals) are covered with brass or other metal
not liable to corrosion.
The usual method of constructing these rollers is either to cast the brass rings or
bosses & the shells between them on to the shafts in groups or carriages between
the journals or to cast a thin shell upon the shafts, turn up the surface thereof
and shrink the bosses thereon.
This improved method of constructing the rollers for wet spinning frames is
carried out by covering the iron or steel shafts with a tube of brass or other
incorrodible metal, which is drawn or spun on to the shafts, & pressed into close
contact therewith by being passed thro' dies or rollers so that it becomes fast
thereon.
On to these covered shafts the rings or bosses are then shrunk; the journals
being formed by removing the portion of the brass tube opposite the bearings.
Longitudinal grooves may be formed in the shaft so that the metal of the
covering may be drawn and pressed into these grooves to form a key.
By this improved method of construction I obtain an incorrodible covering for
the spaces between the bosses as thin as is desirable but firmly attached to the
shaft.
Dated this 13th day of January 1893.
COMPLETE SPECIFICATION.
An Improved Method of Constructing the Rollers for Wet Spinning
Frames.
JOSHUA VALENTINE EVES of Forth River Mills Belfast Ireland Mill Manager
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 drawing and retaining rollers of wet spinning frames, consist of a shaft of
wrought iron or steel with bosses or rings thereon which are fluted; these bosses
or rings are made of brass of suitable density and hardness and the spaces between
the rings or bosses (excepting the journals) are covered with brass or other metal
not liable to corrosion.
The usual method of constructing these rollers is either to cast the brass rings or
bosses and the shells between them on to the shafts in groups or carriages between
the journals or to cast a thin shell upon the shafts turn up the surface thereof
and shrink bosses thereon.
This improved method of constructing the rollers for wet spinning frames is
carried out by covering the iron or steel shafts with a tube of brass or other
incorrodible metal which is drawn or spun on to the shafts and pressed into close

page_text: contact therewith by being passed through dies or subjected to the action of rollers
so that it becomes fast to the shaft.
On to these covered shafts the rings or bosses are then shrunk the journals
being formed by removing the portion of the brass tube opposite the bearings.
Longitudinal grooves or recesses may be formed in the shaft so that the metal
of the covering may be drawn and pressed into these grooves to form a key.
For rollers such as the back or retaining rollers of wet spinning frames in which
there is only a small projection to form the boss the tube or tubes can be of
sufficient thickness to form the bosses the intervening spaces being reduced
sufficiently thin to be pressed into close contact with the shaft and to fill the
recesses formed therein so as to effectually secure the tubes to the shaft..
Such being the nature of my invention and that the same may be clearly
understood the annexed drawing shews portions of rollers as used for wet spinning
frames constructed after the manner herein described.
Figs. 1 and 4 are elevations and
Figs. 2, 3 and 5 are sections.
Figs. 4 and 5 shew the construction of the roller with the bosses (a¹) formed in
the tube itself.
The fluted rings or bosses (a) are shrunk on to the covered surface (b) of the
shaft (c) by being heated before being slipped on and when the bosses (a) are in
their proper position they are allowed to cool and so become fixed to the tube (b)
which is attached to the shaft (c) by being passed through dies or subjected to
the action of rollers as already described. The surface of the shaft (c) may either
be left plain as shewn in section Fig. 2, or have longitudinal groove or grooves
therein as shewn in Figs. 3 and 5.
The covering (b) is removed where the bearings (c¹) are required on the
shaft (c).
By this improved method of construction an incorrodible covering is obtained
for the spaces between the bosses as thin as is desirable but firmly attached to the
shaft.
.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
(1) In the construction of rollers for wet spinning frames the drawing of a
metallic tube or shell on to the shaft pressing the tube into close contact with the
shaft by passing the same through dies or rollers and further securing the tube or
shell to the shaft by shrinking on the bosses.
(2) In the construction of rollers for wet spinning frames the drawing of a
metallic tube or shell on to the shaft which has longitudinal grooves or recesses in
its surface pressing the tube into close contact with the shaft and the grooves or
recesses therein by passing the shaft and tube through dies or rollers and further
securing the tube to the shaft by shrinking on the bosses.
(3) In the construction of rollers for wet spinning frames the drawing on to the
shaft a tube or tubes of sufficient thickness to form the bosses the intervening
spaces being reduced sufficiently and pressed into close contact with the shaft or
recesses formed therein to form an effectual attachment.
(4) The improved method of constructing the rollers for wet spinning frames
by drawing or rolling a tube of incorrodible metal into close contact with the
shaft for the purpose of covering the spaces between the bosses as herein described
and illustrated.
Dated this 11th day of October 1893
JOSHUA VALENTINE EVES.