IMPROVEMENTS IN 'DOUBLE DOFFER' CONDENSERS " PROVISIONAL SPECIFICATION
Year: 1874

page_text: LETTERS PATENT to Edwin Knowles, of the Firm of Messrs. Knowles,
Houghton, and Company, of Gomersal, in the County of York,
Machine Makers, and William Fenton, of the Firm of Messrs. John
Fenton and Sons, of Batley Carr, in the County aforesaid, Woollen
Manufacturers, for the Invention of "IMPROVEMENTS IN 'DOUBLE DOFFER'
CONDENSERS
"
PROVISIONAL SPECIFICATION left by the said Edwin Knowles and
William Fenton at the Office of the Commissioners of Patents, with
their Petiton, on the 2nd July 1874.
We, EDWIN KNOWLES, of the Firm of Messrs. Knowles, Houghton,
and Company, of Gomersal, in the County of York, Machine Makers,
and WILLIAM FENTON, of the Firm of Messrs. John Fenton and Sons, of
Batley Carr, in the County aforesaid, Woollen Manufacturers, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN 'DOUBLE
DOFFER CONDENSERS," to be as follows:-
'
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page_text: obtain a double number of threads from each pair of "rubbing" leathers.
To effect this we arrange a pair of condenser bobbins," one above the
other, to each pair of "rubbing" leathers, and convey the ends of
"slubbing"alternately to the top and bottom "bobbin," the rings on-
the "doffer" being placed closer together than when it is only desired
to supply one "bobbin." It will thus be seen that in a double doffing
machine we obtain by our method twice as many threads as are produced
by a machine of the same width constructed on the ordinary principle.
The frame carrying the condenser bobbins" and "surface" rollers is
constructed separate from the rest of the machine, so that it may be
readily removed and afford increased facility for cleaning the machine.
Secondly. Our Invention consists in the application and use of a roller
placed underneath each "doffer" cylinder, which roller is provided
with rings of card which enter the spaces between the rings of the
doffer," and cleanse the same from dust and stray fibres from the
fancy."
"
ઃઃ
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Edwin Knowles and William Fenton in the Great
Seal Patent Office on the 2nd January 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, EDWIN 2
KNOWLES, of the Firm of Messrs. Knowles, Houghton, and Company, of
Gomersal, in the County of York, Machine Makers, and WILLIAM
FENTON, of the Firm of Messrs. John Fenton and Sons, of Batley Carr,
in the County aforesaid, Woollen Manufacturers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Second day of July, in the year of our
Lord One thousand eight hundred and seventy-four, in the thirty-eighth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto us, the said Edwin Knowles and William Fenton, Her
special licence that we, the said Edwin Knowles and William Fenton,
our executors, administrators, and assigns, or such others as we, the said
Edwin Knowles and William Fenton, 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

page_text: In order that this Invention may be more cleary understood, we have
hereunto annexed one Sheet of Drawings illustrative of the same.
Fig. 1 shews the arrangement of the "bobbins" and surface rollers,
A being the bobbins, and B the surface rollers; C are the rubbing
leathers, and D and D¹ the threads which are passed over rollers E
and E¹ respectively to effect a more clear separation of the fibres or
prevent entanglement of the threads. The frame F carrying the bobbins
and rollers is mounted on wheels F" running on rails G, so that it can
readily be removed from the machine, and free access afforded to the
rubbers and other parts. J are rollers or shafts placed underneath
the "doffer" cylinders K of a carding engine, which rollers are provided
with rings of card L entering the spaces between the rings of the
"doffers," for the purpose of cleansing the same from dust and stray
fibres from the "fancy." Such stray fibres are found in practice to
connect two or more threads together, even after passing through the
rubbing leathers. These rollers are shewn in elevation at Fig. 2, as also
the doffer cylinder K.
In witness whereof, I, the said William Fenton, for and on behalf
of myself and the said Edwin Knowles, have hereunto set my
hand and seal, this Thirty-first day of December, in the year of
our Lord One thousand eight hundred and seventy-four.
Witness,
WM. TASKER,
Patent Agent,
Halifax & Bradford.
WILLIAM FENTON. (L.S.)