IMPROVEMENTS IN APPARATUS FOR SUPPORTING OR HOLDING THE DRAWING ROLLS USED IN SPINNING OR SIMILAR MACHINERY
Year: 1883

page_text: LETTERS PATENT to William Robert Lake of the firm of Haseltine Lake
and Co Patent Agents Southampton Buildings, London for an Invention
of "IMPROVEMENTS IN APPARATUS FOR SUPPORTING
OR HOLDING THE
DRAWING ROLLS USED IN SPINNING OR SIMILAR MACHINERY" communicated
to him from abroad by Joseph H: Congdon of Coventry, William Sprague of
South Kingston and Amata Sprague of Cranston all in Rhode Island, United
States of America..
PROVISIONAL SPECIFICATION left by the said William Robert Lake at
the Office of the Commissioners of Patents on the 17th July 1883.
WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake, & Co, Patent Agents,
Southampton Buildings, London "IMPROVEMENTS IN APPARATUS FOR SUPPORTING
OR HOLDING THE DRAWING ROLLS USED IN SPINNING OR SIMILAR MACHINERY"
[A communication to him from abroad by Joseph H. Congdon of Coventry, William
Sprague of South Kingston and Amata Sprague of Cranston all in Rhode Island,
United States of America.]
This invention relates to stands for holding the rolls used in. drawing out the
sliver in spinning and other machinery and has for its object, the regulating of the
distance between the rolls to suit the different lengths of staple that may be
used.
In carrying the said invention into practice I provide a roller stand the lower
part of which is made in the usual form. The top is cut down between the
bearings of the front and middle rolls and a portion removed so as to leave a flat
bar extending backwards to hold the bearings of the middle and back rolls. A slot
is made through this flat portion into which are fitted projections on the under
sides of the blocks which form the bearings of the said middle and back rolls.
A screw is placed in this slot with a bearing in the front part of the stand; a
shoulder on the inside, and a head upon the outer end of the said screw preventing it
Price 6d.1

page_text: from moving endways in the bearing.. The first block which forms the bearing for
the middle roll has a hole 'through that part. which projects into the slot, with a
screw thread cut in it fitted to the front portion of the said screw.
The second block with the bearing for the back roll also has a hole inade through
that part which projects into the slot, through which part a screw-thread is made
to fit the back portion of the screw which has a thread the pitch of which is twice
as coarse as the part of the screw which fits into the first block, or the screw may
have for its whole length the same number of threads to the inch if on its back
portion it is a double thread, so that the second block will move twice as fast as
the first block, when the said screw is turned. To the back part of the second
block is pivotted a part of a cap which has a slot formed in its front end rabbetted
on the top, into which slot is fitted. the rear portion of a cap-piece. This cap-piece
also has a rabbetted slot made in its front end into which the back end of a front
cap-piece is fitted to slide freely, the object of the slots and parts sliding in them
being to keep the cap-pieces in line with each other when drawn out.
The back cap-piece is pivotted to the second block so that the whole cap may be
turned back, and follow the movements of that block, but the other two cap-pieces
are controlled by the pins which are inserted in the front block and in the stand
in front of the front roll, and which enter the cap-pieces above and keep them in
place so that the top rolls held in notches shall always be over the lower rolls.
Sometimes the two cap-pieces on the middle of the rolls between two stands,
instead of being controlled by pins like those over the stands above described are
made with prongs extending down on each side of the lower rolls which prongs
cause them to move with the said rolls and keep the ends in their proper positions.
All the screws in the different stands of a machine may be connected together
by means of a small shaft with worm-wheels on it, cach worm-wheel engaging with
a worm-gear on each screw, so that by turning the shaft, all the rolls on the
machine may be adjusted simultaneously without stopping the machine.
The operation is as follows that is to say-In a spinning, machine after setting
the rolls at the distance from each other which is supposed to be right for the
particular staple to be used, the machine is started and the yarn produced carefully
observed. If it does not appear to be quite right the rolls are moved backwards
and forwards by turning the screw until the exact point is found at which the best
effect is produced in the appearance of the yarn. The distance between the rolls
thus formed, can be used for a guide in setting the drawing rolls for the same
staple in those machines in which no yarn is produced, such as drawing frames or
the like
By means of the improvements herein before described the difficulty in setting
the back roll is overcome and the drawing of the sliver can be accomplished as
well between the back and middle rolls as between the middle and front rolls
where it is usually done, thus doubling the amount of drawing done in one machine
which has the effect of dispensing with one half of the machines used exclusively
for drawing. It is necessary in connection with this that the weights upon the
rolls should be properly adjusted, and I have found that instead of dividing the
same weight that is put on the front rolls, between the middle and back rolls, the
weights on the front, middle, and back rolls, should be equal, for because of the
weight on the middle roll being usually not more than about one half of that on
the front rolls, the fibres have slipped to some extent under the middle roll, and
consequently, instead of the drawing being done wholly between the front and
middle rolls where the distance is right for the staple, it has been done, in conse-
quence of this slipping between the middle rolls, to a considerable degree between
the front and back rolls where the distance is too great for the length of staple, and
consequently uneven places were produced.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Robert Lake in the Patent Office on the 17th January
1884.
WILLIAM ROBERT. LAKE of the firm of Haseltine, Lake, & Co Patent Agents,
Southampton Buildings, London "IMPROVEMENTS IN APPARATUS FOR SUPPORTING
OR HOLDING THE DRAWING ROLLS USED IN SPINNING OR SIMILAR MACHINERY "
A communication to me from abroad by Joseph H Congdon of Coventry, William
Sprague of South Kingston, and Amata Sprague of Cranston all in Rhode Island,
United States of America
This invention relates to stands for holding or supporting the rolls used in
drawing out the sliver in spinning and other machinery
The said invention has for its object the regulating of the distance between the
rolls to suit the different lengths of staple that may be used and comprises the novel
construction and combination of parts as hereinafter described
In the accompanying drawing
Figure 1 is a side elevation of a roller stand constructed according to this
invention.
Figure 2 is a vertical longitudinal section of the same
Figures 3 and 4 are a side and top view respectively of the back piece of
the cap.
Figures 5 and 6 are top and side views respectively of the middle piece of the
same and
!
Figures 7 and 8 are similar views of the front piece
Figure is a top view of the stand with the sliding parts removed and
Figure 10 is a side view of the cap between the two stands for holding the ends
of the top rolls
The lower part of the stand A is made in the usual form. The top is cut down
between the bearings of the front and middle rolls, and a portion removed so as to
leave a flat bar extending back to hold the bearings of the middle and back rolls.
A slot is made through this flat portion into which are fitted projections on the
under side of the blocks d and g which form the bearings of the said middle and
back rolls. A screw h is placed in this slot with a bearing in the front part of the
stand; a shoulder on the inside and a head upon the outer end of the screw
preventing it from moving endways in the bearing. The block d which forms the
bearing for the middle roll has a hole through that part which projects into the
slut with a screw thread cut in it fitted to the front portion of the screw h.,
57440
The block g with the bearing for the back roll also has a hole made through
that part which projects into the slot through which part a screw thread is made
to fit the back portion of the screw which has a thread the pitch of which is twice
as coarse as the part of the screw which fits into the block d. The screw may if
desired have for its whole length the same number of threads to the inch if on its
back portion a double thread is formed so that the block g will move twice as fast
as the block d when the screw is turned'
L
To the back part of the block g at n is pivoted a part of the cap c which has a
slot formed in its front end rabbetted on the top into which rabbett is fitted the
rear portion of the cap-piece b. This cap-piece also has a rabbetted slot made in
its front end into which the back end of the front cap-piece a is fitted to slide
freely. The object of the slots and parts sliding on them being to keep the cap;
pieces in line with each other when drawn out. The back cap piece c is pivotted
to the block g so that the whole cap may be turned back, and follow the movement
...

page_text: of that block, but the other two cap-pieces ba are controlled by the pins o, o which
are inserted in the block d and in the stand in front of the front roll, and which
enter the cap pieces above and keep them in place so that the top rolls s, ss held
in the notches shall always be over the lower rolls.
In Figure 10 I show the two cap-pieces a¹ b that go on the middle of the rolls
between two stands, instead of being controlled by pins like those over the stands
above described. The said cap pieces are made with prongs ab extending
down on each side of the lower rolls which prongs cause the said cap pieces to move
with the said rolls and keep the ends in their proper positions.
All the screws in the different stands of a machine may be connected together
by means of a small shaft f with worm-wheels on it, each worm wheel Zengaging
with a worm gear z on each screw, so that by turning the shaft all the rolls on the
machine may be adjusted simultaneously without stopping the machine. In
figure 1 the lower rolls are indicated by the dotted lines v, v₁, vl, and the top
rolls by the letters s. s. s.
The operation is as follows 'In a spinning machine after setting the rolls at the
distance from each other that is supposed to be right for the particular staple to be
used, the machine is started and the yarn produced carefully observed If it does
not appear to be quite right the rolls are moved backwards and forwards by
turning the screw h until the exact point is found at which the best effect is
produced in the appearance of the yarn. The distance between the rolls thus
found can be used for a guide in setting the drawing rolls for the same staple in
those machines in which no yarn is produced, such as drawing frames or the like.
By means of the improvements hereinbefore described the difficulty in setting
the back-roll is overcome and the drawing of the sliver can be accomplished as
well between the back and middle rolls as between the middle and front rolls where
it is usually done, thus doubling the amount of drawing done in one machine
which has tho effect of dispensing with one half of the machines used exclusively
for drawing. It is necessary in connection with this that the weights upon the
rolls should be properly adjusted, and I have found that instead of dividing the
same weight that is put on the front rolls between the middle and back rolls, the
weights on the front middle, and back rolls, should be equal, for because of the
weight on the middle roll being usually not more than about one half of that on
the front rolls, the fibres have slipped to some extent under the middle roll, and
consequently, instead of the drawing being done wholly between the front and
middle rolls where the distance is right for the staple, it has been done (in
consequence of this slipping between the middle rolls) to a considerable degree
between the front and back rolls where the distance is too great for the length of
staple, and consequently uneven places were produced.
Having thus fully described the said invention as communicated to me by my
foreign correspondents and the manner of performing the same I wish it understood
that I claim.
First A drawing roll stand having movable bearings for the middle and back
rolls, in combination with mechanism connecting the said stand and bearings,
whereby they may be adjusted at one operation, substantially as, and for the
purpose, set forth,
Second The combination of the stand A, the differential screw h, and the
blocks d and g, constructed and operating substantially as herein set forth. for
the purpose specified.
Third The combination of the movable pieces of the cap a b, c, controlled by the
pins o o. o, with the stand A, the blocks d, g, and the screw h, substantially as, and
for the purpose, described.
'
Fourth The intermediate cap pieces a³, b₁ having prongs all, 61, substantially
as described, in combination with a drawing-roll stand having movable roller
bearings and mechanism for adjusting them, substantially as, and for the purpose,
set forth.

page_text: Fifth. The combination of the shaft f, the worm-wheel 1, and the worm-gear
wheel, with the screw h, and the roller stand A having movable bearings or boxes
for the middle and back rolls, substantially as, set forth and for the purpose
specified.
In witness whereof I the said William Robert Lake have hereunto set my hand
and seal this seventeenth day of January in the year of our Lord one thousand
eight hundred and eighty four.
WM. ROBT. LAKE (LS.)