IMPROVED APPARATUS POR GIVING PRESSURE TO THE DRAWING ROLLERS OF PREPARING AND SPINNING MACHINERY
Year: 1864

page_text: LETTERS PATENT to James M°Intosh, of Dundee, in the Kingdom of
Scotland, Mill Manager, for the Invention of "IMPROVED APPARATUS POR
GIVING PRESSURE TO THE DRAWING ROLLERS OF PREPARING AND SPINNING
MACHINERY."
Sealed the 31st January 1865, and dated the 30th November 1864.
PROVISIONAL SPECIFICATION left by the said James McIntosh at the
Office of the Commissioners of Patents, with his Petition, on the
30th November 1864.
I, JAMES MCINTOSH, of Dundee, in the Kingdom of Scotland, Mill
Manager, do hereby declare the nature of the said Invention for " Im-
PROVED APPARATUS FOR GIVING PRESSURE TO THE DRAWING ROLLERS OF PREPARING
AND SPINNING MACHINERY," to be as follows:-
This Invention relates to an arrangement of apparatus for insuring to the
drawing rollers of preparing and spinning machinery used in the manufacture
of flax, jute, hemp, silk, wool, or other fibrous substances a more equable
pressure (which is capable of exact adjustment) than can be obtained by the
usual mode of levers and weights.
From the ordinary grate or bar which serves to guide the wooden pressing
rollers, behind the drawing roller projects a forked rod, which is held in posi-
tion by a screw and nut. To the forked end of this rod is jointed a pendent

page_text: lever, which at a short distance from its fulcrum is embraced by and pivotted
to a forked socket piece. This socket piece is tapped to receive the screwed
end of a rod, which carries at its other end a bearing for the axle of the
wooden pressing roller. To the bottom end of the pendent lever there are
attached by swivel joints, plates of tempered steel, which extend downwards
below a longitudinal beam of the spinning frame, and the bottom end of the
steel spring plates are placed into a catch fixing attached to that beam. The
adjustment of the pressure to be imparted to the drawing roller is effected by
turning the screwed rod so as to enlarge or decrease the distance between the
axle of the pressing rollers and the pendent lever. To increase or decrease
the amount of pressure, the spring plates which swivel for the purpose freely
on their coupling pins are first released from the catch and the rod is then
screwed in or out, as required.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said James M'Intosh in the Great Seal Patent Office on the
30th May 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
MCINTOSH, of Dundee, in the Kingdom of Scotland, Mill Manager, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirtieth day of November, in the year of our
Lord One thousand eight hundred and sixty-four, in the twenty-eighth year
of Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said James McIntosh, Her special licence that I, the said
James McIntosh, my executors, administrators, and assigns, or such others
as I, the said James McIntosh, my 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 expressed, should and
lawfully might make, use, exercise, and vend, within the United King-
dom of Great Britain and Ireland, the Channel Islands, and Isle of
Man, an Invention for "IMPROVED APPARATUS FOR GIVING PRESSURE
THE DRAWING ROLLERS OF PREPARING AND SPINNING MACHINERY," upon the
condition (amongst others) that I, the said James McIntosh, my executors
or administrators, by an instrument in writing under my, 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

page_text: 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 I, the said James M°Intosh, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement, reference being had to the Drawing hereunto annexed,
and to the letters and figures marked thereon (that is to say): :-
This Invention relates to an arrangement of apparatus for insuring to the-
drawing rollers of preparing and spinning machinery used in the manufacture
of flax, jute, hemp, silk, wool, or other fibrous subtances a more equable
pressure, (which is capable of exact adjustment) than can be obtained by the
usual mode of levers and weights.
In the accompanying Drawing I have shewn my improved apparatus as
applied to give pressure to a pair of pressing rollers of dry spinning frames
for flax, hemp, or jute.
Fig. 1 is a front view of the pair of pressing rollers supported in their
guides, and with the pressing apparatus applied thereto, and Fig. 2 is a side
elevation of a drawing and pressing roller, with the pressing apparatus in side
elevation and partly in section.
A, A is the ordinary grate or bar of the spinning frame, and which serves
to guide the wooden pressing rollers behind the drawing rollers. From this
grate A projects a forked rod B, which is held firmly in position by means of
a screw and clamping nut. To the forked end of this rod is jointed a pendent
lever C, which at a short distance from its fulcrum is embraced and secured
by a pivot pin to a forked socket piece D. This socket piece is tapped to
receive the screwed end of a rod E, which carries at its other end a bearing
for the axle of the wooden pressing roller F. To the bottom end of the
pendent lever C there are attached by a swivel joint pin c plates of tempered
steel G, which extend downwards below a longitudinal beam H of the spinning
frame. The bottom ends of the steel spring plates are secured together by a
rivet, and inserted in a catch fixing I attached to the beam H. The regula-
tion of the amount of pressure to be put upon the drawing roller K is effected
by simply turning the screwed rod E, so as to enlarge or decrease the distance
between the axle of the pressing rollers and the pendent lever C. To permit
of this regulation, it is necessary first to remove the pressure of the spring
plates from the pressing rollers; this is done by turning the spring plates on
their coupling pin c, and thus releasing them from the catch I, the rod E is
then free to be screwed in or out, as required.

page_text: The advantages attending the application of this improved apparatus are
that the levers and weights of the usual system are dispensed with, thus
avoiding the accidents and inconvenience that were caused by them.
much more steady pressure is insured, which not only produces a much
more evenly-drawn sliver, but causes great saving in the wooden pressing
rollers, which will consequently be found to last much longer than usual.
This Invention by some slight and obvious modifications admits of
being applied to the pressing of drawing rollers for other kinds of flax
spinning and preparing machinery, or for the machinery used in preparing
and spinning silk, wool, or other fibrous materials.
. Having now set forth the nature of my Invention of improved apparatus
for giving pressure to the drawing rollers of preparing and spinning ma-
chinery, and explained the manner of carrying the same into effect, I wish
it to be understood that under the above in part recited Letters Patent
I claim the arrangement of apparatus above described for providing an
adjustable pressure for the drawing rollers of preparing and spinning
machinery.
In witness whereof, I, the said James M°Intosh, have hereunto set my
hand and seal, the Twenty-sixth day of May, in the year of our Lord
One thousand eight hundred and sixty-five.
PETER MACKIE, Witness,
Clerk at East Mill,
Guthrie Street,
Dundee.
JA. MINTOSH. (L.S.)