Improvements in the Method of Compressing Brass Covered Rollers for Wet Spinning Frames.
Year: 1886

page_text: Date of Application, 24th Apr., 1886.
Complete Left, 16th Dec., 1886.
Complete Accepted, 18th Jan., 1887.
:
Improvements in the Method of Compressing Brass Covered Rollers
for Wet Spinning Frames.
JAMES BARBOUR of Falls Foundry, Belfast, in the County of Antrim, Ireland,
Machinist, do hereby declare the nature of my invention for IMPROVEMENTS IN THE
METHOD OF COMPRESSING BRASS COVERED ROLLERS FOR WET SPINNING FRAMES to be as
follows:-
These improvements relate to the brass covered fluted rollers for wet spinning
frames which require to be free from pores or cracks in their fluted surfaces which
when working come in contact with the material to be drawn.
To obtain these clean working surfaces various methods have been tried in addition
to careful founding and mixture of the metals, notably the rolling or compressing of
the brass whilst hot as patented by Messrs. John Erskine and F. D. Finlay.
The method I adopt for obtaining the desired density or closeness in the working
surfaces of the fluted rollers for wet spinning frames consists in subjecting them to
strong rolling pressure as they rotate before or after being fluted this rolling pressure
is applied at one or more parts of the same boss at the same time thereby reducing
the diameter by compression instead of by cutting and thus the density of the bosses
is increased.
The mechanism or tool employed to apply the required pressure, consists of a frame
that can be readily applied to the bossed rollers, which are caused to revolve during
the compressing operation.
This movable frame carries a roller or rollers that are pressed by screws or levers or
both into contact with the working surface of the bosses on the rollers.
The compressing roller or rollers may be made either with plain surfaces or with
fluted surfaces in the former case the compressing rollers are employed to reduce the
diameter to the required size by rolling compression prior to the fluting process and
in the latter case the application of the rolling pressure may be employed to partially
or wholly form the required flutes in the surface of the rollers.
The advantages of these means for increasing the density of brass covered rollers
consist in the fact of their applicability to existing rollers whether fluted or plain as
well as to new rollers for the brass usually employed for the rollers of wet spinning
frames is amenable to the action of pressure applied as the rollers revolve, and by the
increase of density in the fluted or working surfaces the durability and effeciency of the
rollers is increased.
TCUDALD

page_text: COMPLETE SPÉCIFICATION.
Improvements in the Method of Compressing Brass Covered Rollers
for Wet Spinning Frames.
JAMES BARBOUR Falls Foundry Belfast in the County of Antrim Ireland Machinist
do hereby declare the nature of my invention for IMPROVEMENTS IN THE METHOD OF
COMPRESSING BRASS COVERED ROLLERS FOR WET SPINNING FRAMES and in what manner
the same is to be performed, to be particularly described and ascertained in and by the
following statement:—
These improvements relate to the brass covered fluted rollers for wet spinning
frames which require to be free from pores or cracks in their fluted surfaces which
when working come in contact with the material to be drawn.
To obtain these clean working surfaces various methods have been tried in addition
to careful founding and mixture of the metals notably the rolling or compressing of
the brass whilst hot as patented by Messrs. Erskine and Finlay No: 13414, dated.
5th November 1885.
The method I adopt for obtaining the desired density or closeness in the working
surfaces of the fluted rollers for wet spinning frames consists in subjecting them to
strong rolling pressure as they rotate before or after being fluted this rolling pressure
is applied at one or more parts of the same boss at the same time thereby reducing the
diameter by compression instead of by cutting and thus the density of the bosses is
increased.
The mechanism or tool employed to apply the required pressure is shewn on the
drawing herewith Figures 1 and 3 are top views and figures 2 and 4 are side views
of two forms of the apparatus.
The bossed rollers (a) to be compressed are carried and caused to revolve by an
ordinary lathe (b).
When one compressing roller (c) is employed for compressing the bossed roller (a)
the form of tool illustrated in figures 1 and 2 is used This consists of a portable
frame (d) which carries a compressing roller (c) that is pressed into contact with the
boss (a) to be compressed by means of screws (d') the portable frame (d) having
hooked jaws one on each side of the compressing roller. so as to come in contact with
the spaces on each side of the boss (a) being operated upon.
When two or more compressing rollers (e c³) are employed for compressing the
bossed rollers (a) the form of tool illustrated in figures 3 and 4 is employed which
consists of a portable frame (e) carrying one or two rollers (c) and also a lever or
arm (f) which carries a compressing roller (c³) that is pressed into contact with the
boss (a) to be operated upon by means of a nut and screw (e) which is made to swing
upon a centre and pass into the forked portion of the lever (f) so as to be readily
removed when the pressure is relieved and permit of the transfer of the tool to the
next boss to be compressed.
The compressing roller (c) or rollers (cc) may be made either with plain surfaces
as shewn in the drawings or with fluted surfaces.

page_text: In the former case the compressing rollers are employed to reduce the diameter of
the bosses (a) to the required size by rolling compression prior to the fluting process
and in the latter case the application of the rolling pressure may be employed to
partially or wholly form the required flutes in the surface of the rollers (a).
The advantages of these means for increasing the density of brass covered rollers
consist in the fact of their applicability to existing rollers whether fluted or plain as
well as to new rollers for the brass- usually employed for the rollers of wet spinning
frames is amenable to the action of pressure applied in the manner described as
the rollers revolve and by the increase of density in the fluted or working surfaces the
durability and effeciency of the rollers are increased.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I claim is
The apparatus described or any mere modification thereof for the purpose of
compressing the surface of brass rollers for wet spinning frames.