Improvements in or connected with Frames for Spinning Flax or other Fibrous Material.
Year: 1890

page_text: Date of Application, 22nd Jan., 1890
Complete Specification Left, 20th Oct., 1890-Accepted, 22nd Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements in or connected with Frames for Spinning Flax or
other Fibrous Material.
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 is designed chiefly to be applied to frames for the wet spinning
of flax on pirns with the object of providing a let off motion independent of the
traverse motion, or the form of traverse motion, which can be applied to the lifter
or builder shaft or mechanism.
It consists essentially in applying to, or combining with the lifter or builder
shaft or mechanism, a wheel or pulley which gears with the traverse chain, rack,
or other connection from the traverse motion, whose relative position may be
altered at each traverse of the builder rail by a worm and worm wheel, screw or
similar mechanism. On the lifter or builder shaft is placed a wheel or pulley
which engages or gears with a chain, rack, or other mechanism which connects
the builder mechanism with the traverse motion; alongside of which there is also
placed a worm wheel or ratchet wheel, or their equivalent, which can be moved
a short regulated distance at specified intervals. A bracket is also placed in con-
nection with the builder shaft preferably attached to the chain or rack wheel.
This bracket carries a worm, screw, pawl, or the like device to move forward the
worm or ratchet wheel on the builder shaft. On the end of the shaft of the worin
or screw carried by the bracket is fitted a device such as a ratchet wheel which
will be moved forward the required distance at each traverse of the builder rail by
being brought into contact with a pawl or dog.
A winding up handle will be attached to reset and adjust the position of the
mechanism at each time the pirns are full and the frame has been "doffed."
The builder shaft will always have the same extent of circumferential travel but
its position in relation to the traverse motion will be altered and the let off may
take place either in the chains or racks which connect the traverse motion with
the wheel on the lifter or builder shaft or in the chains or racks which connect
the builder shaft with the builder rail as may be arranged for by making the first
mentioned wheel or pulley either fixed to or loose upon the builder shaft.
The traverse motion may be of any well known or suitable form in which a
rack or chains is or are worked to and fro, such as by a lever and heart-shaped
cam, a sliding rack or quadrant actuated by a pinion or mangle wheel.
HY
T THAT
M. P.
Co.,
6, Bank Street, Manchester, Patent Agents.
COMPLETE SPECIFICATION.
Improvements in or connected with Frames for Spinning Flax or
other Fibrous Material.
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 is designed chiefly to be applied to frames for the wet spinning of
flax on pirns or cops with the object of providing a let off independent of the traverse
motion or the form of traverse motion employed the same being applied to the lifter or
builder shaft or mechanism.

page_text: It consists essentially in applying to or combining with the lifter or builder shaft a
let off mechanism which at each traverse of the builder rail, will alter the relative
position of the builder shaft with the traverse mechanism or with the wheel or pulley on
the builder shaft by which the traverse mechanism is connected thereto.
It will be fully described with reference to the annexed drawings in which as an
example one form of let-off mechanism constructed according to my invention is
shown.
Fig. 1 front elevation of the apparatus with a side elevation of a small portion of
the end frame work of the spinning frame.
Fig. 2 plan of same with end framework in section.
Fig. 3 side elevation the portion of the end frame work being in front elevation.
Fig. 4 side elevation looking in the opposite direction to elevation in Fig. 3.
The traverse mechanism which is not shown in the drawings may be of any well
known or suitable form in which a rack or chains is or are moved to and fro by a
lever and heart shaped cam, by a sliding rack or by a quadrant actuated by a pinion
or mangle wheel.
The end frame-work of the spinning frame-a portion of which is shown marked A
-and the builder shaft B are placed in their usual relative positions. The wheel
pulley or cam to which the traverse mechanism is connected by a chain D or other-
wise is placed loosely on the end of the builder shaft B, and attached to it is a bracket E.
The bracket E is made with a sleeve or bearing e through which the builder shaft
passes and in the arrangement shown in the drawings is free to rotate therein.
Attached to the bracket E or forming part of it is a second sleeve or bearing e' in a
plane at right angles to the sleeve or bearing e. Affixed by a key or otherwise to the
builder shaft B is a worm wheel F which gears with a worm G on a short cross shaft H
journalled in the sleeve or bearing el. By rotating the shaft H and worm G the
builder shaft B may be rotated while the pulley Cand bracket E remain stationary
and by rotating the pulley C the bracket E is rotated about the axis of the builder
shaft B and with it the shaft B and the cross shaft H.
On the outer end of the cross shaft H is secured a ratchet wheel I with a pawl J
carried by a lever j pivoted on the shaft H. And on the frame A is bolted a bracket K
with a stationary stad k against which the lever j comes in contact as the shaft H falls
causing the pawl J to engage with the teeth on the ratchet wheel 1 and move it part of
a revolution. The height and position of the lever j and pawl J is adjusted by the
screw L carried by the lug l.
By this means at each movement of the traverse mechanism and each lift of the
builder rail the relative positions of the builder shaft and pulley and consequently of
the builder rail and traverse mechanism are altered at each turn of the ratchet wheel I
and worm G acting on the worm wheel F by letting off the lifting chains thus
altering the height of the lift of the builder rail without altering the length of
traverse.
A winding up handle M is attached to the cross shaft H by which the position of the
mechanism can be reset and adjusted each time the pirns are full and the frame has
been doffed. A stop is attached to the worm wheel F to prevent it being turned
too far.
As shown in the drawings the let off takes place in the chains or racks which connect
the builder shaft with the builder rail which is the arrangement I at present prefer.
If desired however it is obvious that the let off cam be caused to take place in the
chains or racks which connect the traverse motion with the wheel cam or pulley C on
the builder shaft B. This will be effected by securing the bracket E to the builder
shaft B, and connecting together the wheel or pulley and the worm wheel F leaving
both free to move on the shaft B.
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 :-
:-
1. In a spinning frame the combination with the builder shaft of a bracket such as E

page_text: journalled on or affixed thereto carrying a ratchet wheel and worm which at each
traverse of the builder rail moves forward a worm wheel a regulated distance to alter
the relative positions of the traverse mechanism and the builder shaft substantially as
and for the purpose described.
2. A let off mechanism for spinning frames to be attached or applied to the builder
shaft with the several parts combined and arranged substantially as described and
shown.
Good day
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.