Improvements in Drawing Frames.
Year: 1893

page_text: Date of Application, 27th July, 1893-Accepted, 23rd Sept., 1893
COMPLETE SPECIFICATION.
Improvements in Drawing Frames.
I, JAMES YATE JOHNSON of No. 47 Lincoln's Inn Fields in the County of
Middlesex Gentleman do hereby declare the nature of this invention (which has
been communicated to me from abroad by Charles Sumner Robinson of Lonsdale
in the State of Rhode Island, United States of America Manufacturer) and in
what manner the same is to be performed to be particularly described and
ascertained in and by the following statement':—
This invention relates more particularly to the calender rolls of coiler drawing
frames.
In ordinary coiler drawing frames the clearer plate is situated and rests on top of
and between the calender rolls. The trumpet plate is above the clearer and the
sliver passes from the trumpet above, through a hole in the clearer to the calender
rolls below.
Under this arrangement fibre-fly and dirty substances accumulate and are held
on the clearer. This accumulation is very apt to be taken up by the slivers at the
points where they pass through the clearer, and in fact is frequently thus taken up
in bunches, going directly into the work. This objection is enhanced and aggravated
by the fact that the trumpet plate is over and rests on and covers the clearer,
making it necessary to remove the trumpet plate in order to get at the clearer to
clean it. The removal of the trumpet plate necessitates the breaking of all the
slivers, and as the clearer should be cleaned once an hour to ensure protection from
the dirty substances which are bound to accumulate there, the labour and delay
attending the cleaning are very considerable. In consequence of the difficulty of
getting at the clearer, and the loss of time occasioned by removing the trumpet
plate, breaking the slivers and then replacing the plate and piecing up the slivers
again, this clearer in practice is seldom if ever cleaned oftener than the machine is
taken apart for general cleaning which usually is once in three weeks, thus leaving
the objectionable accumulation of foreign matter to be picked up by the slivers
and carried forward into the work. The object of this invention is to remedy this
defect.
With this object the sliver is passed directly from the trumpets to the calender
rolls, and clearers are placed upon the opposite longitudinal edges of the trumpet
plates so that they effectually cover the parts of the calender rolls which would
otherwise be exposed and they are preferably so held as to be capable of removal
and replacement, while the machine is running and without interfering with the
operation of the other parts, giving sure protection to the slivers, and requiring but
little care or attention from the operator.
The nature of the invention and the manner in which the same is or may be
carried into effect will be readily understood by reference to the accompanying
drawing in which
Figure is a front elevation of so much of a coiler drawing frame as is needed
for the purpose of explaining this invention in its preferred form.
Figure 2 is a cross section of the same partly in end elevation.
Figure 3 is a side elevation of one of the intermediate bearings of the frame.
The front and rear calender rolls are shewn at C C¹ But one complete set is
shewn supported in the end bearing K and the intermediate bearing A. B. Where,
as is usual, a number of sets is used the sets extend from side to side of the machine,
the intermediate sets being supported in intermediate bearings A B. The caus
(shewn at N) and coiler tops may be constructed and arranged in the usual
manner.
T is the trumpet plate placed directly above and extending lengthwise of the

page_text: calender rolls, and supported by the end bearing K and intermediate bearing A. B.
in it are formed the trumpets T" for the passage of the sliver from the front drawing
rolls (not shown) to the calender rolls.
Against each longitudinal edge of the trumpet plate is fitted a clearer L which
rests upon the calendar roll with which it is intended to co-operate, having its
curved inner face which rests upon the roll armed or covered with cloth or
equivalent material. Each clearer overhangs and effectually covers the exposed
portion of its roll.
Each clearer extends the length of the trumpet plate and is supported in the
bearings K and A. B.
For this purpose it has on.one end a pin à which fits in an
inclined notch b cut in the inner face of the portion of the bearing K by which it is
carried, and on the other end a pin or stud c which enters and fits an inclined slot d
in the intermediate bearing A. B, the notch and slot being inclined in such direction
that as the clearer tends to drop slightly by its weight, it will come into close
contact with the calendar roll. For the same purpose cach clearer may be provided
with a weight W, hung from a weight strap chain or cord M held in a groove or
slot e in the clearer, and passing over and down upon the inner side of the axle of
the calendar roll. The adjustment is such that the joint between the trumpet plate
and each clearer is a tight one, and that the top of the clearer at the joint is flush
with the top of the trumpet plate so that the outside of the clearer can be kept
perfectly clean with entire ease, all that is needed being to wipe or dust it off from
time to time with a brush or cotton waste. At the same time the clearer can owing
to the arrangement of the joint be easily removed whenever necessary by lifting
the pin e out of its slot d after which the pin a can readily be withdrawn from its
notch b. The clearer can be replaced with the same ease and expedition.
This improvement with such mechanical changes as will readily occur to those
conversant with this class of machinery is applicable to any and all drawing frames
having a coiler attachment.
I desire it to be understood also that I do not limit myself to the particular form
of joint between the clearers and their supporting frame or bearings as this can be
modified and changed considerably without departure from this invention.
:-
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The combination with the calendar rolls and trumpet plate of clearers placed
the one in front and the other in rear of the trumpet plate overhanging those
otherwise exposed portions of their respective rolls which are not covered by the
trumpet plates, substantially as and for the purposes herein before set forth:
2. The combination with the calendar rolls and trumpet plate of clearers placed
in front and rear respectively of the trumpet plate and detachably connected to
their supporting frame or bearings, so as to be removable and replaceable
substantially as and for the purpose hereinbefore set forth.
3. In combination with the calendar rolls and trumpet plate, the clearers fitting
against the front and rear edges of said plate and overhanging the otherwise
exposed portions of the said rolls, and supported in bearings inclined in a direction
to cause them to tend by their weight to press towards their respective rolls
substantially as and for the purposes hereinbefore set forth.
Dated this 27th day of July 1893.