IMPROVEMENTS IN SCREW GILL BOXES FOR PREPARING WOOL AND OTHER FIBROUS SUBSTANCES
Year: 1879

page_text: LETTERS PATENT to Henry Walton Whitehead, of the Firm of Taylor,
Wordsworth, and Co., of Leeds, in the County of York, Machine Makers, and
Job Stake, of Huddersfield, in the County of York, Combing Machine
Manager, for the Invention of "IMPROVEMENTS IN SCREW GILL BOXES FOR
PREPARING WOOL AND OTHER FIBROUS SUBSTANCES.”
PROVISIONAL SPECIFICATON left by the said Henry Walton Whitehead
and Job Stake at the Office of the Commissioners of Patents on the 13th
November 1879.
HENRY WALTON WHITEHEAD, of the Firm of Taylor, Wordsworth, and Co., of
Leeds, in the County of York, Machine Makers, and JOB STAKE, of Huddersfield,
in the County of York, Combing Machine Manager. IMPROVEMENTS IN SCREW
GILL BOXES FOR PREPARING WOOL AND OTHER FIBROUS SUBSTANCES."
$6
This Invention relates:-Firstly. To a method of gradually lowering the
"fallers" employed in screw gill boxes, and thereby prevent the noise and wear
and tear occasioned by their dropping, and our improvements consist in the use
and employment of an endless belt or chain, having projections thereon so placed
at intervals apart as to receive the fallers when they arrive at the end of the
driving screws. When the fallers get on these projections their weight causes the
endless belt or chain to move downwards, carrying the fallers with it to the bottom
screw, and so on, one after another continuously. The speed at which the endless
belt or chain is allowed to travel can be regulated by tightening or slackening
same. Secondly. The Invention relates to a means or method of strengthening the
bottom screws employed in this class of machine.
Hitherto the threads of the screw have been cut to the end of the barrel, and
the cam for lifting the fallers from bottom screw to top screw has been fixed into
recesses or holes made in the "shank" or shaft end of the screw; but in practice
it is found that the shank end breaks at the part thus weakened for the reception
of the cam. Now our Invention is intended to remedy this defect, which we
accomplish by not cutting the thread of the screw to the end of the barrel, and in
fixing the cam in the barrel itself and not in the shank as hitherto, by which means
the breakages referred to are prevented.
Thirdly. Our Invention relates to the top screws, and the improvements consist
in not cutting the thread of the screw to the end of the barrel as is now the case;
but in leaving a part of the barrel end solid, so that should any accident occur to
the spring, which is employed for guiding the fallers into the thread of the screw,
the solid part will keep the fallers in proper position up to their work.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Henry Walton Whitehead and Job Stake in the Great Seal Patent
Office on the 13th May 1880.
HENRY WALTON WHITEHEAD, of the Firm of Taylor, Wordsworth, and Co., of
Leeds, in the County of York, Machine Makers, and JOB STAKE, of Huddersfield,
in the County of York, Combing Machine Manager. "IMPROVEMENTS IN SCREW
GILL BOXES FOR PREPARING WOOL AND OTHER FIBROUS SUBSTANCES."
"
This Invention relates :-Firstly. To a method of gradually lowering the
"fallers
employed in screw gill boxes, and thereby prevent the noise and wear
and tear occasioned by their dropping, and our improvements consist in the use
and employment of an endless belt or chain, having projections thereon so placed
at intervals apart as to receive the "fallers" when they arrive at the end of the
driving screws. When the fallers get on these projections their weight causes the
endless belt or chain to move downwards, carrying the fallers with it to the bottom
screw, and so on, one after another continuously. The speed at which the endless
belt or chain is allowed to travel can be regulated by tightening or slackening
same.
And in order that our Invention may be more fully understood reference is given
to the accompanying Drawings and to the Figures and letters marked thereon; the
same letters indicate like parts wherever they occur. Fig. 1 illustrates such parts
of a gill box as will serve to shew our first improvements; A is the front roller;
B, the frame or front block for carrying the ends of the screws, which are not
shewn, in order to more clearly illustrate our improvements; C is a faller, and D
the endless belt, having projections E thereon, so placed at intervals apart as to
receive the faller C when it arrives at the end of the driving screws, as shewn,
When the fallers C gets on these projections E its weight causes the endless
belt D to move downwards, carrying the fallers C with it to the bottom screw, and
so on, one after another continuously. The endless belt D is carried by the studs
F and G, such studs F and G being supported by brackets H and I, and their
positions are regulated by the adjustable screws J, K, and L, which are also
employed for tightening or slackening the belt as may be required. The brackets
H and I are carried by the cross bar M fixed to the frames of the gill boxes, as is
well understood. Instead of using the endless belt, as shown in Fig. 1, we may use
an endless chain, as shewn in Fig. 2, which is and end view, and Fig. 3 a side view
thereof. D is the endless chain having projections E on the links of the chain, any
number of links being used as is found most practible. The endless chain D is
carried by the studs F and G, the stud F being fixed to the front block B, and the
stud G fixed to the bottom slide G', a portion of which is cut away to allow of the
endless chain D to pass through it. In order that the fallers may be parallel to
each other and properly balanced during their travel, a corresponding endless chain
to that described is placed at the opposite side of the front block B, both of which
pass in the grooves H of the faller C instead of the front spring as hitherto.
Secondly. The Invention relates to a means or method of strengthening the
bottom screws employed in this class of machine. Hitherto the threads of the
screw have been cut to the end of the barrel, and the cam for lifting the fallers
from bottom screw to top screw has been fixed into recesses or holes made in the
"shank" or shaft end of the screw, but in practice it is found that the shank or
shaft end breaks at the part thus weakened for the reception of the cam. Now
our Invention is intended to remedy this defect, which we accomplish by not
cutting the thread of the screw to the end of the barrel and in fixing the cam in
the barrel itself and not in the shank as hitherto. Fig. 4 is a full view of the
bottom screws shewing our improvements, as marked at A; and Fig. 5 is cross
section taken through the line a, b, shewing the barrel of the screw and the method

page_text: of fixing the cam C therein. By this meams the screws are strengthened and the
breakages referred to are prevented.
Thirdly. Our Invention relates to the top screws, and the improvements consist
in not cutting the thread of the screw to the end of the barrel, as is now the case,
but in leaving a part of the barrel end solid, so that should any accident occur
to the spring, which is employed for guiding the fallers into the thread of the
screw, the solid part will keep the fallers in proper position up to their work.
This part of our Invention is shewn in Fig. 6, and is placed in its relative position
with the bottom screw; the improvements in the top screw being marked B, so
that should any accident occur to the spring S, which is employed for guiding the
fallers during their travel from the bottom to the top screw, the solid part, marked B,
will keep the fallers in proper position up to their work.
Having thus described our improvements and shewn the manner of carrying.
the same into effect, we would have it understood that we do not confine ourselves
to the precise details shewn and described, as they may be varied without departing
from the peculiar character of the several improvements herein enumerated; but
what we do claim is,-
Firstly. The use and employment of the endless belt or chain D for gradually
lowering the fallers from the top to the bottom screws, in the manner substantially
as herein shewn and described.
Secondly. We claim the improvements in the manufacture of the bottom screws,
having the cam C fixed in the end of the screw, substantially as described and
illustrated in Figs. 4 and 5.
Thirdly. We claim the improvements, marked B, in the manufacture of the top
screws, for the purposes substantially as herein described and illustrated.
In witness whereof, we, the said Henry Walton Whitehead and Job Stake,
have hereunto set our hands and seals, this Twenty-eighth day of April,
in the year of our Lord One thousand eight hundred and eighty.