Improvements in Carding Engines.
Year: 1897

page_text: Date of Application, 11th Jan., 1897--Accepted, 13th Feb., 1897
Improvements in Carding Engines.
We, ALEXANDER FEDOTOFF, of Oreckova, near Moscow, Russia, Mill Manager,
and JOHN MCQUEEN, of John Hetherington and Sons Limited, of Vulcan Works,
Manchester, in the County of Lancaster, Machine Maker, do hereby declare the
nature of this invention and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
Our invention relates to improvements in carding engines and consists in an
improved arrangement of driving gear for imparting a slow motion to the doffer
instead of stopping it entirely when the attendant releases the catch that holds the
ordinary driving wheels in gear.
The chief objects of our improvements are-
First, to prevent the cotton or other fibrous material from being beaten into the
wire card clothing which takes place when the doffer is stopped and the cylinder
continues to rotate whereby the wire teeth are damaged, and-
Secondly, to enable the attendant to piece up the broken. sliver with greater
facility whereby the amount of waste made is reduced to a minimum.
In the accompanying sheet of drawings-
Figures 1 and 2 are side elevations of part of a carding engine to which our
improved arrangement of driving gear is applied, Fig., 1 showing the doffer being
driven by the ordinary quick speed gear and Fig. 2 showing the doffer driven by
the slow speed gear.
Figure 3 is a plan of the driving gear and barrow or drop lever.
In these views,-a designates the doffer, b part of the main cylinder and the
underframing of the carding engine.
In the ordinary way the doffer is driven from the licker-in, not shown, by the
following train of gearing
g
A spur wheel d fixed on the shaft of the doffer is geared with a pinion e formed
with or secured to a second pinion e and to a spur wheel fall mounted loosely on
a stud y which is fixed adjustably in a slot in the barrow or drop lever h. The
spur wheel gears into a pinion i formed with or secured to a grooved pulley j
driven by a rope k from the licker-in and mounted loosely on a stud / on which the
barrow lever his fulcrumed, the stud / being secured to the framing c. Consequently
when the barrow lever is in the position shown in Fig. 1, the pinion e mounted on
the study is held up in gear with the spur wheel d and motion from the rope k is
transmitted through the train of gearing to the doffer which revolves at its ordinary
quick or working speed.
The above arrangement of parts, with the exception of the second pinion e,
constitutes a well known form of driving gear and in itself forms no part of our
present invention.
When, however, the barrow lever is released by a catch, not shown, and is
lowered into the position shown in Figure 2, the second pinion e comes into gear
with a spur wheel m formed with or secured to a pinion n mounted loosely on a
studo secured adjustably to the framing c and the motion thus given to the
pinion n is transmitted by a carrier gear p on a fixed stud q to the spur wheel d
whereby the doffer continues to revolve but at a slow speed.
The speed at which the doffer is driven as above described might be varied
relatively to its ordinary working by changing the wheels m n for spur gears of
different relative sizes.

page_text: When the attendant has finished piecing up the sliver it is only necessary to
raise the barrow lever h into the position shown in Fig. 1, when the doffer will at
once resume its normal working speed.
We have shown and described two pinions e but it is obvious that a single broad
pinion might be employed.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. The combination with the barrow or drop lever and the driving gear specified
or an equivalent arrangement for imparting the ordinary working speed to the
doffer, of the train of gearing shown and described for imparting a slow speed to
the doffer when the ordinary gear is disengaged substantially as and for the
purposes herein set forth.
'
2. The combination with the lever and the second pinion e, of the train of
gears m, n, p, for transmitting a slow motion from the second pinion e to the spur
wheel d and doffer a substantially in the manner and for the purposes herein
described and as illustrated by the accompanying drawings.
Dated this 9th day of January 1897.
H. B. BARLOW & GILLETT,
17 St. Ann's Square, Manchester, Agents for Applicants.