IMPROVEMENTS IN OR APPLICABLE TO MACHINERY FOR SPINNING OR TWISTING FIBROUS SUBSTANCES
Year: 1870

page_text: LETTERS PATENT to Mark Dawson and George Frederick Dawson, of
the Firm of Mark Dawson & Son, of Springhead Mills, Bowling,
near Bradford, in the County of York, Worsted Spinners, for the
Invention of "IMPROVEMENTS IN OR APPLICABLE TO MACHINERY FOR
SPINNING OR TWISTING FIBROUS SUBSTANCES."
Sealed the 11th April 1871, and dated the 11th November 1870.
PROVISIONAL SPECIFICATION left by the said Mark Dawson and
George Frederick Dawson at the Office of the Commissioners of
Patents, with their Petition, on the 11th November 1870.
We, MARK DAWSON and GEORGE FREDERICK DAWSON, of the Firm
of Mark Dawson & Son, of Springhead Mills, Bowling, near Bradford,
in the County of York, Worsted Spinners, do hereby declare the nature
of the said Invention for "IMPROVEMENTS IN OR APPLICABLE TO MACHINERY
FOR SPINNING OR TWISTING FIBROUS SUBSTANCES " (to be as follows):
This Invention has reference especially to that class of machinery
technically known as cap frames" but applicable also to "flyer
$6

page_text: "
frames and "
cap twister frames."
Heretofore the spindle rail or
the rail upon which the spindles or studs are carried has been fixed to
the frame ends by screw bolts after it has been set or adjusted to suit
the required drag, but this mode of setting and fixing occupied much
time and the right position of the rail could seldom be attained. Now
our Invention consists in having the said rail moveable in slides or slots
in the frame ends, and in the application of a horizontal shaft extending
nearly or completely from end to end of the frame (as may be desired)
upon which shaft are fixed at suitable distances apart a series of worms
to operate worm wheels, which also form nuts to a series of vertical
screw shafts or rods. The said vertical screw shafts or rods may however
be fastened to the stationary rail with the nuts and horizontal shaft attached
to the spindle or stud rail. The fixings of the lifter plates are attached
to the said spindle or stud rail so as to be raised and lowered along with
the before-mentioned rails and by the same means. To the end of the
horizontal shaft a winch is applied whereby the attendant at any time can
turn the same and readily elevate or lower the said spindle or stud rail
to the exact position required for regulating the drag.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Mark Dawson and George Frederick Dawson in the
Great Seal Patent Office on the 11th May 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, MARK
DAWSON and GEORGE FREDERICK DAWSON, of the Firm of Mark Dawson
and Son, of Springhead Mills, Bowling, near Bradford, in the County of
York, Worsted Spinners, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eleventh day of November, in the year
of our Lord One thousand eight hundred and seventy, in the thirty-
fourth year
of Her reign did, for Herself, Her heirs and successors, give
and grant unto us, the said Mark Dawson and George Frederick Dawson,
Her special licence that we, the said Mark Dawson and George Frederick
Dawson, our executors, administrators, and assigns, or such others as
we, the said Mark Dawson and George Frederick Dawson, our executors,
administrators, and assigns, should at any time agree with, and no others
from time to time and at all times thereafter during the term therein

page_text: expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN OR
APPLICABLE TO MACHINERY FOR SPINNING OR TWISTING FIBROUS SUBSTANCES,"
upon the condition (amongst others) 'that we, the said Mark Dawson
and George Frederick Dawson, our executors or administrators, by an
instrument in writing under our, or their, or one of their hands and
seals, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that we, the said Mark Dawson and George Frederick
Dawson, do hereby declare the nature of our said Invention, and in
what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement and accompanying
Sheet of Drawings :—
66
This Invention has reference especially to that class of spinning
machinery technically known as
cap frames
" but applicable also to
flyer frames and “ cap twister frames." Heretofore the spindle rail or
the rail upon which the spindles or studs are carried has been fixed to
the frame ends by screw bolts after it has been set or adjusted to suit
the required drag, but this mode of setting and fixing occupied much
time and the right position of the rail could seldom be attained. Now
our Invention consists in having the said rail moveable in slides or
slots in the frame ends and in the application of a horizontal shaft
extending nearly or completely from end to end of the frame (as may be
desired) upon which shaft are fixed at suitable distances apart a series
of worms to operate worm wheels which also form nuts to a series of
vertical screw shafts or rods. The said vertical screw shafts or rods are
by preference fixed to the said spindle or stud rail, and the worm wheels
are placed so as to rotate in boxes formed in or fixed to the stationary
rail. The vertical screw shafts or the nuts may however be fastened to
the stationary rail with the worm wheels and horizontal shaft attached
to the spindle or stud rail. The fixings of the lifter plates are attached
to the said spindle or stud rail so as to be raised and lowered along with
the before-mentioned rails and by the same means. To the end of the
horizontal shaft a winch is applied whereby the attendant at any time

page_text: can turn the same and readily elevate or lower the said spindle or stud
rail to the exact position required for regulating the drag.
In order that this Invention may be fully understood we refer to an
accompanying Sheet of Drawings of portions of an ordinary cap spinning
frame with our improvements applied thereto.
Fig. 1 is a part of the front elevation, and Fig. 2 is a cross section of
the same.
A is the spindle or stud rail or the rail in which the cap
studs B are fixed upon which the caps O are placed, and on which the
bobbins D rotate. E is the lifter plate for giving traverse motion to
the bobbins, which receives its motion in the usual manner from the
reciprocatory motion of the bar F actuated by ordinary spool motion. G
is the stationary rail to which are attached a series of boxes or carrying
brackets H carrying a shaft I, on which are fixed a series of worms J. in
gear with worm wheels K which also form screw nuts to the series of
vertical shafts L which are fixed to the stud rail A. The said stud rail
is fitted at each end to the frame end M in such manner as to be capable
of being moved up or down to any position suitable for the required
drag and then fastened by the screw bolts N.
It will now be readily seen that when the stud rail is required to be
altered in its position on the frame the attendant by slackening or 2
unfastening the bolts N, and by applying a winch handle P to the
shaft I it may be turned and so turn the worm wheels K on the shafts L
by which the said stud rail may be raised or lowered to the precise
position required and in whatever position still retaining its parallelism
with stationary rail and the drawing rollers without any difficulty of 2
setting or measuring therefor. It will also be observed that the lifter
plate is moved with the stud rail by reason of the rail R which carries
the pullies S, and the slide bar F being attached to the said stud rail by
the brackets T so that all these several parts are raised and lowered
together. Also it will be evident by reference to Fig. 3 that the vertical S
shafts L and the horizontal shaft I may be attached to and carried by
the stud rail so as that the former will turn in the stud rail, the worm
wheels K being fixed thereon and nuts fixed or held from turning in the
stationary rail.
This Invention is equally applicable to flyer. frames by having the 3
spindle or the rail which carries the spindles capable of moving up or
down and the lifter plate attached to it as will be easily understood by
all practical spinners and spinning frame or machine makers.

page_text: Having thus fully described the nature of the said Invention, and
shewn by Drawings in what manner the same is to be or may be
performed or carried into practical operation, we would have it distinctly
understood that we do not confine or restrict ourselves to the precise
details in the mode of application and arrangement of the several parts
as herein described and shewn by the Drawings accompanying the
same; but what we claim as our Invention is, the method of having
the stud rails in cap frames and the spindle rails in flyer frames capable
of being raised or lowered or moved up or down in the frames by
means of horizontal shafts and worms applied and operated in manner
substantially as shewn and described.
In witness whereof, I, the said George Frederick Dawson, for and
on behalf of myself, and the said Mark Dawson, have hereunto
set my hand and seal, this Ninth day of May, in the year of our
Lord One thousand eight hundred and seventy-one.
GEORGE FREDERICK DAWSON. (L.S.)
Signed, sealed, and delivered by
the within-named George Frederick
Dawson, in the presence of
EDWARD TASKER.