IMPROVEMENTS IN MACHINERY OR APPARATUS TO BE EMPLOYED IN DOUBLING OR TWISTING COTTON, WOOL, OR OTHER FIBROUS SUBSTANCES
Year: 1867

page_text: LETTERS PATENT to Samuel Montague Grover, of Worsley, in the County
of Lancaster, Cotton Spinner, for the Invention of "IMPROVEMENTS IN
MACHINERY OR APPARATUS TO BE EMPLOYED IN DOUBLING OR TWISTING
COTTON, WOOL, OR OTHER FIBROUS SUBSTANCES."
of Lancaster, Cotton Spinner, for the Invention of
IMPROVEMENTS IN
MACHINERY OR APPARATUS TO BE EMPLOYED IN DOUBLING OR TWISTING
COTTON, WOOL, OR OTHER FIBROUS SUBSTANCES."
Sealed the 13th September 1867, and dated the 30th March 1867.
PROVISIONAL SPECIFICATION left by the said Samuel Montague Grover
at the Office of the Commissioners of Patents, with his Petition, on the
30th March 1867.
I, SAMUEL MONTAGUE GROVER, of Worsley, in the County of Lancaster,
Cotton Spinner, do hereby declare the nature of the said Invention for "In-
PROVEMENTS IN MACHINERY OR APPARATUS TO BE EMPLOYED IN DOUBLING OR
TWISTING COTTON, WOOL, OR OTHER FIBROUS SUBSTANCES," to be as follows:-
My Invention is designed for the purpose of twisting or doubling two or
more threads of cotton yarn or other fibrous materials together.
The improvements consist in the employment and use of a bobbin con-
taining the two or more threads of cotton yarn which has been previously
wound thereon, the said bobbin being placed upon a spindle situated between
the legs of an inverted "flyer." The yarn in an untwisted state is drawn
upwards off this bobbin by means of rollers, between which it passes, first
passing through one of the "twirls" or eyes of the flyer, and it is received in
a twisted state from the rollers onto bobbins revolving on spindles which have
no flyer, and are secured to an ordinary copping rail having the necessary rise
[Price 8d.1

page_text: and fall; the receiving bobbins receive a positive revolving motion from an
arrangement of gearing that drives the rollers employed for drawing the yarn
off the delivery bobbins; the receiving bobbins when full are "doffed," and
empty ones supplied in their place with the greatest facility in consequence of
the absence of "flyers."
BPECIFICATION in pursuance or the conditions of the Letters Patent, mieu
by the Said Samuel Montague Grover in the Great Seal Patent Office
on the 28th September 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SAMUEL
MONTAGUE GROVER, of Worsley, in the County of Lancaster, Cotton Spinner,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirtieth day of March, in the year of our Lord
One thousand eight hundred and sixty-seven, in the thirtieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Samuel Montague Grover, Her special license that I, the said Samuel
Montague Grover, my executors, administrators, and assigns, or such others as
I, the said Samuel Montague Grover, 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 Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for "IMPROVE-
MENTS IN MACHINERY OR APPARATUS TO BE EMPLOYED IN DOUBLING OR TWISTING
COTTON, WOOL, OR OTHER FIBROUS SUBSTANCES," upon the condition (amongst
others) that I, the said Samuel Montague Grover, executors or adminis-
trators, 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 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 Samuel Montague Grover, do hereby
declare the nature of the 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 Drawings (that is to say):-
My Invention is designed for the purpose of twisting or doubling two or
more threads of cotton yarn or other fibrous materials together.

page_text: The improvements consist in the employment and use of a bobbin con-
taining the two or more threads of cotton yarn which has been previously
wound thereon, the said bobbin being placed upon a spindle situated between
the legs of an inverted "flyer." The yarn in an untwisted state is drawn
upwards off the bobbin by means of rollers, between which it passes, first
passing through one of the "twirls" or eyes of the flyer, and it is received in
a twisted state from the rollers onto bobbins revolving on spindles which have
no flyers, and are secured to an ordinary copping rail, or the yarn is placed on
the bobbin by a rail having the necessary rise and fall; the receiving bobbins
receive a positive revolving motion from an arrangement of gearing that drives
the rollers employed for driving the yarn off the delivery bobbins; the
receiving bobbins when full are doffed, and empty ones supplied in their
place with the greatest facility in consequence of the absence of "flyers."
In order that the Invention may be better understood and explained in
detail I have hereunto attached a Sheet of Drawings illustrative of same.
Fig. 1 represents an end view, shewn in section, of the improved apparatus
for doubling or twisting fibrous threads together, which exhibits the bobbins
within the inverted flyers, the rollers and the bobbins which receive the
doubled yarn; Fig. 2 is a detached sectional view of the bobbins and the
bevil gearing and friction plate by which it is driven; Fig. 3 represents a
vertical view of the bobbin containing the two yarns and the inclined planes
and washer plates for retarding the revolution of the bobbins when the frame
is stopped; Fig. 4 is a plan view of the same; and Fig. 5 represents a front
view of the frame as shewn in Fig. 1.
In Figs. 1 and 5, a, a, is the framing of the machine; b, b, the bobbins
containing the two or more threads of yarn to be doubled or twisted together,
and which is placed on the spindle within the inverted flyer c, the two threads
are passed through the "twirl" of the flyer, and are drawn upwards by the
roller d, and pass through the eyelets on the bar e, which is caused to rise
and fall by ordinary lever or wheel and chain mechanism, so as to deliver the
yarn which has been twisted by the flyer on to the large bobbins f, t, which
are driven by the bevil gearing g from the roller d through the train of spur
gearing, the bobbins receiving motion by the friction of the plates h, h, the
arrangement of which part is clearly seen in Fig. 2. In order to arrest the
revolution of the bobbins b, b, when required, a plate is provided with a
series of inclined planes, one beneath each bobbin, so that when the strap fork
handle k is moved to stop the machine it draws the plate, causing the inclined
planes to lift the bush and washer into contact with the bobbin, and so
prevent its further revolution. By this means and arrangement of machinery

page_text: the time occupied in the process of doffing the doubled yarn bobbins is
considerably decreased and economised.
Having now described the nature of the said Invention, together with the
method of carrying the same into practical effect, I wish it to be distinctly
understood that I claim the novel construction, arrangement, employment,
and use of apparatus for doubling or twisting yarns or threads of cotton,
wool, or other fibrous substances as herein-before described, set forth, and
fully illustrated in the Drawings attached.
In witness whereof, I, the said Samuel Montague Grover, have hereunto
set my hand and seal, this Twenty-fifth day of September, in the year
of our Lord One thousand eight hundred and sixty-seven.
In witness whereof, I, the said Samuel Montague Grover, have hereunto
set my hand and seal, this Twenty-fifth day of September, in the year
of our Lord One thousand eight hundred and sixty-seven.
SAMUEL MONTAGUE GROVER. (L.S.)
Witnessed by
JOHN L. DAVIES, C.E.,
Office for Patents,
Manchester.