Improvements in Machinery for Drawing or Preparing Flax or similar Fibres for Spinning.
Year: 1891

page_text: Date of Application. 17th Feb., 1891
Complete Specification Left, 9th Nov., 1891-Accepted, 9th Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in Machinery for Drawing or Preparing Flax or
similar Fibres for Spinning.
I, JOSHUA VALENTINE EVES, of the Forth River Mills, Falls Road, Belfast, in
the County of Antrim, Ireland, Mill Manager, do hereby declare the nature of this
invention to be as follows:-
This invention relates to the preparing machines, used in the spinning of flax and
similar fibres and known as roving frames drawing frames and spread boards in
which large wooden pressing rollers are employed to bear upon the drawing rollers
and it is designed with the object of reducing or preventing the increase of friction
between the axle of these pressing rollers and the lever or gib by which the
pressure is applied consequent upon any uneven wear or alteration of shape in the
said pressure rollers.
I apply to the axle of these pressure rollers a rocking bush, the underside of
which engages with the axle and the upper side is made hollow or round in a line
at right angles to the axis of the rollers. The underside of the lever or gib by
which the pressure is applied to the rollers is formed with a hollow or round surface
to correspond with the upper surface of the bush upon which it bears.
To this bush I propose to attach by means of a spring or other device a second
bush or pad which will be caused to be pressed or held against the underside of the
axle of the pressure rollers. This bush may be formed with a cavity to hold oil
or other lubricant and a pad of flannel or other material by which such lubricant
is applied to the axle of the roller.
Instead of making the top of the loose bush of semi-cylindrical surface it may be
made semi-spherical so as to offer little resistance to a swivelling movement in two
directions if such were found to be required for any class of frame.
The form of spring 1 prefer to use for connecting the top bush with the bottom
bush which carries the oiling pad is of the shape of a sugar tongs and the spring is
just sufficiently strong to hold the bottom bush up in position when the top one is
in its place.
By the use of this invention no undue friction is caused upon the axle of a
"drunk" or untrue pressure roller as the shape of the upper surface the top bush
allows it to move with any rise or fall of the axle at either end and the pressure is
maintained constant. By thus reducing the friction I am enabled to run the rollers
with less weight or pressure upon them and at the same time be sure of the pressing
rollers always turning round and drawing the slivers properly.
The toil
החסו ...
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Machinery for Drawing or Preparing Flax or
similar Fibres for Spinning.
I, JOSHUA VALENTINE EVES, of the Forth River Mills, Falls Road, Belfast,
in the County of Antrim, 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 :-
This invention relates to the preparing machines, used in the spinning of flax and
similar fibres and known as roving frames, drawing frames and spread boards, in
D

page_text: which large wooden pressing rollers are employed to bear upon the drawing rollers
and it is designed with the object of maintaining a constant lubrication and thereby
reducing or preventing the increase of friction between the axle of these pressing
rollers and the lever or gib by which the pressure is applied consequent upon any
uneven wear or alteration of shape in the said pressure rollers.
It consists essentially of a bush or bearing for the axles of the pressure rollers
formed with a curved top and provided with a second or auxiliary bush or pad
connected thereto by a spring by which it is held up against the under side of the
axle to keep it constantly oiled.
It will be fully described with reference to the accompanying drawings.
Fig. 1. front elevation of pair of pressure rollers of roving frame with my
invention applied.
Fig. 2. transverse section through axle of rollers and my improved bush.
Fig. 3. perspective view of bush removed from roller axle.
The pressure rollers A on the axle B are constructed in the usual way as is also
the connecting rod C and lever D by which the requisite pressure is applied to the
rollers. The lever D rests upon a bush E preferably of brass, which is interposed
between it and the axle B of the rollers A.
The top or upper surface of the bush E in the direction at right angles to the
axis of the rollers 1 prefer to make curved or rounded (preferably convex) as
shown, and the under surface of the lever D make somewhat hollowed to
correspond with the upper surface of the bush E upon which it bears.
To the bush E which rests upon the top of the axle B 1 attach by means of a
spring e a second bush or pad F which by the spring e will be held or pressed
against the under side of the axle B. The bush or pad F is formed with a cavity f
and is preferably filled with a padding fof flannel, wool or other material saturated
with oil or other lubricant, or the lubricant may be placed direct therein. The
pad is held in contact with the under side of the axle of the rollers and the
lubricant thus applied thereto.
Instead of making the top surface of the bush E rounded or curved in one plane
only as shown, it may be made semispherical so as to offer little resistance to a
swivelling movement in two directions if such were found to be required for any
class of frame, or it may be made with a flat top if desired in the usual way, but I
prefer the form shown.
The spring e I prefer to use for connecting the top bush E with the bottom
bush F which carries the oiling pad is of the shape of a sugar tongs, and is just
sufficiently strong to hold the lower bush up in position lightly against the under
side of the axle when the upper one is in its place on top of it.
By the use of this invention all undue friction is obviated; as the oiling pad f
is always in contact with the axle of the rollers which is constantly maintained
efficiently lubricated. By thus reducing the friction I am enabled to run the
bottom rollers G, with less weight or pressure upon them and at the same time be
sure of the pressing rollers always turning round and drawing the slivers properly.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
In machines for drawing or preparing flax or similar fibres for spinning, a bush
or bearing for the axle of the pressure rollers having an upper bush or bearing
upon which the weight lever rests and a lower bush or pad to contain a lubricant
attached thereto and held up against the axle by a spring substantially as
described.
Dated this 5th day of November 1891.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents..