IMPROVEMENTS IN 'WILLEYS' OR 'TEAZERS' EMPLOYED FOR CLEANING WOOL, COTTON, OR OTHER FIBROUS SUBSTANCES
Year: 1875

page_text: LETTERS PATENT to Charles Normington Birkhead, of Mirfield, in
the County of York, for the Invention of "IMPROVEMENTS IN
'WILLEYS' OR 'TEAZERS' EMPLOYED FOR CLEANING WOOL, COTTON, OR OTHER
FIBROUS SUBSTANCES."
Sealed the 9th May 1876, and dated the 16th November 1875.
PROVISIONAL SPECIFICATION left by the said Charles Normington
Birkhead at the Office of the Commissioners of Patents, with his
Petition, on the 16th November 1875.
I, CHARLES NORMINGTON BIRKHEAD, of Mirfield, in the County of
York, do hereby declare the nature of the said Invention for "Im-
PROVEMENTS IN 'WILLEYS' OR 'TEAZERS' EMPLOYED FOR CLEANING WOOL, COTTON,
OR OTHER FIBROUS SUBSTANCES," to be as follows:-
My improvements consist in apparatus for giving the required inter-
mittent feed motion to the wool sheet, also a self-acting motion for
opening the cover doors of the "swift" or cylinder for the purpose of
letting out the wool, and are as hereafter described.

page_text: On the framework of the machine I mount a shaft carrying a worm
which gears into a worm wheel also mounted in suitable bearings on the
framework; a rotary motion is imparted to the worm wheel through the
worm and worm shaft from suitable motive power.
On the framework and in a suitable position with regard to the feed
sheet I mount in adjustable bearings a spur wheel to which is given a
continuous motion. This wheel is made adjustable so that at certain
intervals it can be slided into gear with the spur wheel or pinion on the
feed sheet roller; this sliding movement is obtained by means of a lever
arrangement actuated by a cam or tappet motion on the herein-before
mentioned worm wheel, or by a cam or tappet motion actuated thereby.
I also mount in suitable adjustable bearings on the framework a spur
wheel which is brought into gear intermittently with another spur
wheel or pinion having a continuous motion; this acts upon a lever
, arrangement in connection with the cover door of the "swift" or
cylinder and causes it to open for letting out the wool, cotton, or other
fibrous substance, or shuts it, as may be required. This movement is
caused by a cam or tappet arrangement actuated by the spur wheel
when brought into gear with the spur wheel or pinion having a con-
tinuous motion. The required movement for sliding the spur wheel
into gear with the spur wheel or pinion having a continuous motion is
by means of a cam or tappet arrangement on the herein-before
mentioned worm wheel or by a cam or tappět arrangement actuated
thereby.
Other parts of the machine not mentioned or described may be of
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Charles Normington Birkhead in the Great Seal
Patent Office on the 16th May 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CIFARLES 3
NORMINGTON BIRKHEAD, of Mirfield, in the County of York, send
greeting.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Charles Normington Birkhead in the Great Seal
Patent Office on the 16th May 1876.
:
::
: .
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES 3
NORMINGTON BIRKHEAD, of Mirfield, in the County of York, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixteenth day of November, in the

page_text: year of our Lord One thousand eight hundred and seventy-five, in
the thirty-ninth year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said Charles Normington
Birkhead, Her special licence that I, the said Charles Normington
Birkhead, my executors, administrators, and assigns, or such others
as I, the said Charles Normington Birkhead, my executors, admini-
strators, 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 'WILLEYS'
OR 'TEAZERS' EMPLOYED FOR CLEANING WOOL, COTTON, OR OTHER FIBROUS
SUBSTANCES," upon the condition (amongst others) that I, the said
Charles Normington Birkhead, 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 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 Charles Normington Birkhead,
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 accompanying Drawings, and to the letters of reference marked
thereon, that is to say :-
My improvements consist in apparatus for giving the required inter-
mittent feed motion to the wool sheet, also a self-acting motion for
opening the cover doors of the "swift" or cylinder for the purpose
letting out the wool, and are as hereafter described.
of
On the framework of the machine I mount a shaft carrying a worm
which gears into a worm wheel also mounted in suitable bearings on the
framework; a rotary motion is imparted to the worm wheel through the
worm and worm shaft from suitable motive power.
}
On the framework and in a suitable position with regard to the feed
sheet I mount in adjustable bearings a spur wheel to which is given a
continuous motion. This wheel is made adjustable so that at certain

page_text: a continuous rotary motion is given to the spur wheel n from the shaft i
by means of the pulleys p and q. The spur wheel n is made adjustable
so that at intervals it can be slided into gear with the spur wheel » on
the feed sheet roller shaft s. The required sliding or radial movement
to effect this purpose is as follows:-I provide on the framework a
another radial arm t carried by the stud u; in the radial arm t is fitted
another stud v provided with a cam w which is made by preference
circular except on one portion of its periphery which is hollowed out, as
shewn at x. An intermittent rotary motion is imparted to the cam w
by means of the spur wheel y. The cam being thus put in motion
imparts an intermittent motion to the radial arm o through connecting
rod z which has the effect of throwing in and out of gear the pinion n
with the wheel r, thus causing or arresting the movement of the
travelling sheet m. The required intermittent motion is given to the
spur wheel y, it being alternately thrown in and out of gear with the
spur pinion 1 which has a continuous motion on the intermediate
driving shaft i; this throwing in and out of gear is effected by means of
a tappit arrangement 2 which acts on the end 3 of the rod 4, its other
end 5 being attached to the radial arm t. In order to retain the spur
wheel y in gear with the pinion 1 I provide the stop lever 6 which passes
behind the radial arm t when the spur wheel y is in gear with the
pinion 1, and is retained in that position by means of a spring. On the
spur wheel y is provided a stud or tappit arrangement 7 which at
suitable times knocks on one side the stop lever 6 and admits of the
spur wheel y being thrown out of gear with the spur pinion 1, this
being effected by a spring acting upon the radial arm. In order to
effect the opening of the cover door 9 of the "swift". or cylinder I pro-
vide an arm 10 carried on a bearing or stud 11 on the framework; this is
connected to another lever 12 on the door 9 by means of a connecting
rod 13.
In my Drawings I have shewn the cover door closed and the arm 10
retained in position by means of a check lever 14; this being thrown
outwards the arm 10 drops down and at the same time acts upon the
lever 12 through the connecting rod 13, throwing the door 9 open which
remains open the required time, after which by the revolving of the
snur wheel the stud 8 comes in contact with the arm 10 which is

page_text: I would here remark that instead of the cone puшeys 9 and any
other equivalent friction arrangement may be employed.
Other parts of the machine not explained or shewn may be of ordinary
construction.
Having now described the nature of my said Invention, and shewn
by Drawings how the same may be carried into practice, I would here
remark that I do not limit myself to the exact limits, details, or con-
figuration of the parts I have explained and shewn, as the same may be
varied or modified without in any way departing from my Invention;
but what I do claim and desire to be secured to me by Letters Patent
is,-
First. The arrangement, construction, and application of the means.
employed for imparting the intermittent motion to the travelling sheet
for the purpose of feeding the material to the machine, substantially as
herein set forth.
Second. The arrangement, construction, and application of the self-
'acting arrangement for opening and closing the cover door of the
"swift," substantially as and for purposes herein set forth.
Third. The arrangement and combination of the various parts forming
the machine, substantially as and for purposes herein set forth.
In witness whereof, I, the said Charles Normington Birkhead,
have hereunto set my hand and seal, this Fifteenth day of May,
in the year of our Lord One thousand eight hundred and
seventy-six.