IMPROVEMENTS IN MACHINERY OR APPARATUS TO BE EMPLOYED PROVISIONAL SPECIFICATIONED FOR PREPARING COTTON AND OTHER FIBROUS SUB- STANCES FOR SPINNING
Year: 1870

page_text: LETTERS PATENT to Alfred Wilcock, Richard Robinson, and Frederick
Wilcock, all of Rochdale, in the County of Lancaster, for the In-
vention of "IMPROVEMENTS IN MACHINERY OR APPARATUS TO BE EMPLOYED
PROVISIONAL SPECIFICATION left by the said Alfred Wilcock,
Richard Robinson, and Frederick Wilcock at the Office of the
Commissioners of Patents, with their Petition, on the 29th March
1870.
We, ALFRED WILCOCK, RICHARD ROBINSON, and FREDERICK WIL-
COCK, all of Rochdale, in the County of Lancaster, do hereby declare
the nature of the said Invention for "IMPROVEMENTS IN MACHINERY OR
APPARATUS TO BE EMPLOYED FOR PREPARING COTTON AND OTHER FIBROUS SUB-
STANCES FOR SPINNING," to be as follows:-
This Invention applies to the machines known as slubbing, intermediate,
and roving frames, and to such other machines used in preparing cotton
and other fibrous substances as are provided with one or more conical

page_text: pulleys or drums for the purpose of gradually diminishing the speed of
the bobbins as their diameter increases. In machines of this class
it is necessary for the rollers and bobbins to start and stop simul-
taneously, otherwise imperfect work or breakages will occur, that is to
say, if the bobbins stop before the rollers or start after them the yarn
will become curled or snarled, and if the rollers stop before the bobbins
or the bobbins start before the rollers, the yarn will be stretched and
either thin places or breakages will occur, and in order to prevent this
the strap which drives the cone from the first shaft must be in a complete
state of tension or perfectly tight round the two pulleys, and it has
been found by experience that the strap always gets more or less slack
by use, and hence imperfect or damaged work results. In order to
obviate this defect and to cause the cone which drives the bobbins to
start and stop simultaneously with the rollers, wo use an auxiliary
pair of pulleys, (one on each shaft) and we pass an endless strap round
these two pulleys, and it is found that this auxiliary strap assists the
cone strap in stopping and starting, and causes the bobbins to stop and
start simultaneously with the stopping and starting of the rollers, and
thus prevents either the stretching or curling of the yarn.
SPECIFICATION in pursuance of the conditions of the Letters Patent, 2
filed by the said Alfred Wilcock, Richard Robinson, and Frederick
Wilcock in the Great Seal Patent Office on the 29th September
1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, ALFRED
WILCOCK, RICHARD ROBINSON, and FREDERICK WILCOCK, all of Roch- 2
dale, in the County of Lancaster, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-ninth day of March, in the
year of our Lord One thousand eight hundred and seventy, in the thirty-
third year of Her reign, did, for Herself, Her heirs and successors, give 30
and grant unto us, the said Alfred Wilcock, Richard Robinson, and
Frederick Wilcock, Her special license that we, the said Alfred Wilcock,
Richard Robinson, and Frederick Wilcock, our executors, administrators,
and assigns, or such others as we, the said Alfred Wilcock, Richard

page_text: Robinson, and Frederick Wilcock, 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 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 MACHINERY OR Appa-
RATUS TO BE EMPLOYED FOR PREPARING COTTON AND OTHER FIBROUS SUBSTANCES
FOR SPINNING," upon the condition (amongst others) that we, the said
Alfred Wilcock, Richard Robinson, and Frederick Wilcock, our execu-
tors 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
Scal Patent Office within six calendar months next and immediately
after the date of the said Letters Patent.
NOW KNOW YE, that we, the said Alfred Wilcock, Richard Robin-
son, and Frederick Wilcock, do hereby declare the nature of the said
Invention, and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement
and accompanying Drawings (that is to say) :—
This Invention applies to the machines known as slubbing, inter-
mediate, and roving frames, and to such other machines used in preparing
cotton and other fibrous substances as are provided with one or more
conical pulleys or drums for the purpose of gradually diminishing the
speed of the bobbins as their diameter increases. In machines of this
class it is necessary for the rollers and bobbins to start and stop simul-
tancously, otherwise imperfect work or breakages will occur, that is to
say, if the bobbins stop before the rollers or start after them, the yarn
will become curled or snarled, and if the rollers stop before the bobbins.
or the bobbins start before the rollers the yarn will be stretched, and
either thin places or breakages will occur, and in order to prevent this,
the strap which drives the cone from the first shaft must be in a com-
plete state of tension or perfectly tight round the two pulleys, and it
has been found by experience that the strap always gets more or less
slack by use, and hence imperfect or damaged work results. In order to
obviate this defect and to cause the cone which drives the bobbins to
start and stop simultaneously with the rollers, we use an auxiliary pair
of pulleys (one on each shaft) and we pass an endless strap round these

page_text: two pulleys, and it is found that this auxiliary strap assists the conc
strap in stopping and starting and causes the bobbins to stop and start
simultaneously with the stopping and starting of the rollers, and thus
prevents either the stretching or curling of the yarn.
Such being the nature and object of our said Invention for " Improve-
ments in Machinery or Apparatus to be Employed for Preparing Cotton
and other Fibrous Substances for Spinning," we will now proceed to
describe more in detail the manner in which the same is to be or may
be performed or carried into practical effect, and in order that the same
may be clearly understood we have annexed hercunto a Sheet of
Drawings illustrative thereof, and have marked the same with figures
and letters of reference corresponding with those in the following
explanation thereof.
Fig. 1 shows the way in which we propose to apply our Invention to
old frames or machines already in use. a, a, is the top cone shaft,
and b, b, the bottom cone shaft; c, c, are the cones, and d, d, the
ordinary cone strap, which is movable over the surface of the cones by
means of a strap fork or guide in the usual manner, so as to gradually
diminish the speed of the bobbins. Upon the top cone shaft or driving
shaft a, a, we fix an auxiliary pulley e, e, about the diameter of the
larger end of the cones, and upon the bottom conc shaft b, b, we fix a
second smaller auxiliary pulley f, f, about the same diameter as the
smaller end of the concs, and around these two pulleys we pass the
auxiliary strap g, J. These auxiliary pulleys may, if preferred, be
made in two parts and bolted together so as to be applied without
removing the shafts from the machine.
In fitting up a new frame or machine we prefer to cast or form the
auxiliary pulleys in one piece with the cones, as shown at Fig. 2. It
will of course be evident that the same effect might be produced without
using the auxiliary pulleys by placing an auxiliary strap on one end of
the cone pulleys themselves by making the concs a little longer or
shortening the traverse of the cono strap as shown by the dotted lines
in Fig. 1, but we prefer the use of the auxiliary pulleys as before
described. This auxiliary strap 9, 9, as above mentioned assists in the
stopping and starting of the bobbins, causing them to stop and start at
all times simultaneously with the rollers, but being narrower than the
cone strap d, d, slips on the pulleys when the machine is at work, and
allows the latter to regulate the speed of the bobbins.

page_text: Having now described the nature and object of our said Invention,
together with the manner in which the same is to be or may be per-
formed or carried into practical effect, we wish it to be understood that
we claim as our Invention, the use or employment in the machines
above referred to of an auxiliary strap to assist the stopping and starting
of the bobbins, whether the said strap be applied on a separate pair of
auxiliary pulleys or on the ends of the cones themselves.
In witness whereof, we, the said Alfred Wilcock, Richard Robinson,
and Frederick Wilcock, have hereunto set our hands and seals,
this Twenty-seventh day of September, in the year of our Lord
One thousand eight hundred and seventy.
ALFRED WILCOCK.
RICHARD ROBINSON.
(L.S.)
(L.S.)
5 Witnessed by
GEORGE DAVIS, C.E.,
Office for Patents,
Manchester.
FREDERICK WILCOCK. (L.S.)