Improvement in Roving-frames for Flax or similar Fibres.
Year: 1890

page_text: Date of Application, 31st Jan., 1890
Complete Specification Left, 31st Oct., 189C-Accepted, 6th Dec., 1890
PROVISIONAL SPECIFICATION
An Improvement in Roving-frames for Flax or similar Fibres.
WILLIAM JAMES ROBINSON of 75 Crumlin Road Belfast Ireland Mill Manager do
hereby declare the nature of this invention to be as follows:-
This improvement is a remedy for what is technically known as “tag” in the rove
which is caused by irregular or defective action of the differential motion for regulating
the speed of the hobbins in relation to the spindles and flyers.
The sliver or rove of flax being non-elastic is easily damaged by defective or
irregular winding or twisting and this improvement is designed to prevent damage to
the rove by "tugging" in roving frames.
This is accomplished by introducing a flanged socket or sleeve between the rove
bobbin and the spindle and between the bobbin pinion or wharve to which a different
speed is given at each layer of material.
The intermediate sleeve or socket is connected to the ordinary pinion or wharve for
driving the bobbin and revolves with it and the bobbin is carried by frictional contact
with the sleeve or socket so instead of a "tug" being given to the rove when the bobbin
wharve is momentarily going too slow in relation to the flyer the bobbin being carried
round by friction with the socket always tends to run at a uniform speed and the
irregularities in the speed of the hobbin wharve or pinion are not communicated to the
bobbin and the rove is freed from unequal strain and is wound with more regularity.
Dated this 24th day of January 1890.
WILLIAM J. ROBINSON.
COMPLETE SPECIFICATION.
An Improvement in Roving-frames for Flax or similar Fibres.
1, WILLIAM JAMES ROBINSON, of 75 Crumlin Road, Be fast, 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:-
In the roving frames employed in the spinning of flax and other fibres it is
customary to drive the hobbin by direct contact with a wharve or pinion, a pin in one
engaging with the other.
Any irregularity of speed hetween the spindle and the wharve caused by irregular
or defective action of the differential motion which regulates the relative differences of
speed between the two acts upon the bobbin to cause what is practically known as
"ng" in the rove and as the rove of flax is non-elastic it is easily damaged by
defective or irregular winding or twisting. The invention is designed to prevent such
irregularity and consequent damage to the rove by "tugging" in the roving frames.
The invention consists essentially in the combination with the bobbin and spindle of
a flanged socket or sleeve introduced between the rove bobbin and the spindle and
between the rove bobbin and the pinion or wharve with which it rotates and with
which the bobbin has only a frictional contact.
It will be fully described with reference to the accompanying drawings which show
a part of a spindle and the several parts in connection therewith.
Fig. 1 is a front elevation.
Fig. 2 sectional elevation.
The spindle A, collar B and bobbin wheel Care of the usual form and
construction.
Loosely on the spindle is placed a flanged sleeve or socket D, which rests upon the
op of the bobbin wheel and extends up the spindle the entire length of the
Puss 621

page_text: bobbin E or for such a length as will prevent the bobbin coming in contact with the
spindle while at the same time maintaining it steady while rotating or free from
vibration.
The flange d of the flanged sleeve or socket D rests upon the top of the hobbin
wheel C and is provided with pin-holes which engage with the pins c of the bobbin
wheel C. Or the pins may be affixed to the underside of the flange d and the holes
formed in the bobbin wheel, so that the flanged sleeve or socket E rotates with the
bobbin wheel (
The bobbin E fits over and onto the sleeve or socket I) and is carried by it and
rotates with it by frictional contact.
As the bobbin is carried round by frictional contact with the flanged sleeve or
socket it always tends to run at an uniform speed without being affected by any slight
momentary irregularities in the running of the bobbin wheel C and the rove is
thereby freed from unequal strain and is wound more evenly and with more
regularity.
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 a roving frame for flax and similar fibres the combination with the spindle and
bobbin wheel of a flanged sleeve or socket rotating with the bobbin wheel, interposed
between the bobbin on the one side and the spindle and bobbin wheel on the other,
and with which the bobbin rotates by frictional contact substantially as described.
Dated this 30th day of October 1890
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.