Improvements relating to Carding Engines.
Year: 1895

page_text: Date of Application, 5th Apr., 1895
Complete Specification Left, 23rd Dec., 1895-Accepted, 7th Mar., 1896
PROVISIONAL SPECIFICATION.
Improvements relating to Carding Engines.
We ALFRED HITCHON, Globe Works, Accrington, Machine Salesman, and
WILLIAM EDWARD DUCKWORTH, Globe Works, Accrington, Draughtsman, do
hereby declare the nature of this invention to be as follows:-
This invention relates to driving mechanism of carding engines at the part
that gives motion to the doffer which has a shaft on which is usually mounted
a large toothed wheel for driving same. This large wheel has its motion given
to it by lesser pinion that may become disconnected or sent out of gear to bring
to a standstill the aforesaid doffer, and for restarting same it is customary to
bring a revolving pinion gear into contact with a so called doffer wheel which
causes a sudden strain of the gearing at the restarting of the doffer also to the
other gearing which receives its motion from same source, thus being liable to
strain and break such mechanism. The object of this our invention is to mitigate
such strain caused by throwing the wheels suddenly in gear with each other, as
aforesaid, and also to provide means for giving a changeable speed to the doffer
and its driving connections to the feed motion of the carding engine, giving a con-
venient means of either altering the production of the carding engine or stopping
the production of the carding engine altogether, and a means of connecting same
with the automatic stop motion as described in Letters Patent granted to
Vaughan and others, Specification No. 11,716, dated 1889, in which the rolls bb
are mounted in bearings, the bottom roll 6' revolving in stationary bearings and
the top roller revolving in a fixed bearing at one side, and loosely in its bearing
at the other side, so as to allow for an upward movement of the roller b such
movement is multiplied by the shaft end of the roller being considerably elongated
at the loose end. When there is little or no sliver passing between rollers, the
elongated shaft of the top roller acts on a clutch in connection with stopping
motion, which operates the spindle or bush carrying the clutches of our new
invention.
In carrying out our invention into effect we mount a pair of loose revolving
pulleys on a shaft or bush, capable of an end wise motion, which pulleys revolve
at different speeds to each other, each pulley is provided with a keyway or
clutchlike boss for separately engaging with a key or hub piece clutch on the
shaft or bush on which the pulleys are mounted, the shaft or bush carries a
toothed pinion that engages with the gearing for driving the doffer, the doffer
in turn being connected to the feed part that takes the lap into the card, the
action being when an end slide motion is given to the revolving shaft or bush
that contains the key or hub piece clutch the same will engage with the quicker
revolving clutch like pulley for driving full speed, and an alternate movement
of the bush or shaft will make a change to the slower movement, while an
intermediate position of the hub pieces being kept clear of the two pulleys will
bring the doffer and all its driven connections to a stand, whereby is attained a
full speed motion reduced speed and complete stop.
Dated this 4th day of April 1895.
ALFRED HITCHON,
W. E. DUCKWORTH, ⚫
Applicants.

page_text: improvements relating to Carding Engines.
We, ALFRED HITCHON, Globe Works, Accrington, Machine Salesman, and
WILLIAM EDWARD DUCKWORTH, Globe Works, Accrington, Draughtsman, 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 :-
This invention relates to driving mechanism of carding engines at the part that
gives motion to the doffer which has a shaft on which is usually mounted a large
toothed wheel for driving same. This large wheel has its motion given to it by
lesser pinion that may become disconnected or sent out of gear to bring to a
standstill the aforesaid doffer, and for restarting same it is customary to bring a
revolving pinion gear into contact with a so called doffer wheel which causes
a sudden strain of the gearing at the restarting of the doffer, also to the other
gearing which receives its motion from same source, thus being liable to strain and
break such mechanism.
The object of this our invention is to mitigate such strain caused by throwing
the wheels suddenly in gear with each other, as aforesaid, and also to provide
means for giving a changeable speed to the doffer, and its driving connections to
the feed motion of the carding engine, giving a convenient means of either altering
the production of the carding engine, or stopping the production of the carding
engine altogether, also a means of connection with automatic stop motion similar
to that described in Letters Patent granted to Vaughan and others, Specification
No. 11,716 dated 1889, modified by supplanting the worm f wheel g stud h and
link of Vaughan's Specification, by catch 26 clutch bosses 27-19 stop 28 and
lever 18 which acts as follows:-
The clutch boss 19 is driven positively by means of a float-key 30, fixed in the
shaft 31, and so long as it is pressed against the clutch boss 27 carries round with
it the boss 27, on the sliver becoming thin or absent the top roller b (Vaughan's
Specification) falls bringing the catch 26 on the shaft end into contact with the
projection 29 on the boss 27, and being prevented from moving forward by the
stop 28 causes the motion of boss 27 to cease, and boss 19 being driven positively
by the float key 30 is forced outward by having to work round the scroll 32, thus
moving the lever 18 and its connection 17 to the lever of the stop motion 14.
In carrying out our invention into effect, we mount a pair of loose revolving
pulleys on a shaft or bush, capable of an endwise motion, which pulleys revolve at
different speeds to each other, each pulley is provided with a key way or clutchlike
boss for separately engaging with a key or hub piece clutch on the shaft or bush
ou which the pulleys are mounted, the shaft or bush carries a toothed pinion that
engages with the gearing for driving the doffer, but the doffer in turn, being
connected to the feed part that takes the lap into the card, the action being when
an end slide motion is given to the revolving shaft or bush that contains the key or
hub piece clutch the same will engage with the quicker revolving clutch like pulley
for driving full speed, and an alternative movement of the bush or shaft will make
a change to the slower movement, while an intermediate position of the hub pieces
being kept clear of the two pulleys will bring the doffer and all its driven
connections to a stand, whereby is attained a full speed motion, reduced speed, and
complete stop.
Such being the nature and object of our said invention, the following is a
complete description of same, reference being had to the accompanying drawings
in which,
Sheet 1 big 1io aide cloration as
1

page_text: Sheet 1, Fig. 2, is a plan of Fig. 1.
Sheet 1, Fig. 3, is a front elevation of mechanism for actuating the lever 14
when connected to automatic stop motion (as described in Letters Patent granted
to Vaughan and others, Specification No. 11716, dated 1889).
Sheet 1, Fig. 4, is a sectional elevation of sliding clutch and belt driven clutch
pulleys connected therewith.
Sheet 2, Fig. 5, is a side elevation of flat carding engine showing our improved
driving applied thereto.
The two belt pulleys 1 and 2 containing clutches 7, 8, both of which pulleys can
run loosely on a shaft 3 which shaft has fixed to it a double clutch 4 and also
carries a pinion wheel 5, which is carried round by the shaft 3 by means of a float
key or screws 6, which allow the shaft 3 to slide freely through the wheel 5, but
does not allow the shaft 3 to revolve without carrying with it the wheel 5 and thus
through the wheels 9-10-11 the doffer, the shaft 3 has a ring groove 12 cut into
it, in which a forked bracket 13 engages, which forked bracket is fixed to a
lever 14, mounted on a stud 15 which lever may be actuated, through the con-
nections 16-17-18 by the clutch 19 of the automatic stop motion, the notched
plate 20 retains the connection 16 in position in either of the three positions 21,
22, 23, as is required for slow, stop, or quick motion.
The action is as follows, when the shaft 3 is in the middle position the double
clutch 4 is clear of the clutches 7-8 in the belt pulleys 1-2, which allows both.
pulleys to revolve freely on the shaft 3, the shaft 3 is kept in position by the
forked bracket 13 engaging with the ring groove 12, which forked bracket is fixed
to the lever 14 which is held in the middle position by the connection 16 being
dropped in the middle notch 22 of the notched plate 20, full speed is obtained by
lifting the connection 16 into the notch 23 of the notched plate 20, which moves.
the lever 14 round on the stud 15 and through the forked bracket 13 draws the
shaft 3 and clutch 4 into gear with the clutch 8 of pulley 2, and through the
train of wheels 5-9-10-11 to the doffer.
Slow motion is got by lifting the connection 16 over to the notch 21 of the
notched plate 20 which moves the lever 14 round stud 15 and through the forked
bracket 13 draws the clutch shaft 3 with the clutch 4 into gear with the clutch
of the pulley 1, which pulley is made to run at a slower speed than the pulley 2 by
being driven off the small part 24 of double driving pulley 24-25-Fig. 5, thus.
giving to the doffer through the wheels 5-9-10-11 a slow motion.
The stop motion actuates the lever connection 16 by means of lever 18 (which
rests against collar on clutch 19) and connecting bolt 17, when the clutch 19 moves.
outwards the lever 18 swings round on its stud drawing inwards the bolt 17 which
lifts the connection 16 into the middle notch 22 of the notched plate 20 thus
drawing the clutch shaft 3 with the clutch 4 into the middle position, leaving the
doffer out of gear.
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 general construction arrangement and combination of parts, constituting
the improved driving arrangement, as, and for the purpose herein described and
substantially as shown to enlarged scale on Sheet 1, Fig. 4, herewith.
(2.) The combination of the clutch pulley 2, driving by clutch 4 through shaft 3,
the pinion wheel 5, forked bracket 13, lever 14, and connection 16 held by notched
plate 20 in positions 23 or 22 for either starting or stopping the doffer.
(3.) The combination of the clutch pulleys 1-2 revolving at different speeds to
each other, driving by clutch 4 through shaft 3, the pinion wheel 5 forked
bracket 13, lever 14, and connection 16, held by notched plate 20 in positions 23-22
or 21 for either fast, stop or slow motions.
(4.) The combination of the clutch pulleys 1-2 revolving at different speeds to.
each other, driving by clutch 4 through shaft 3 the pinion wheel 5, forked

page_text: bracket 13, lever 14 and connections 16, 17, 18 to the automatic, stop, motion of
carding engine.
Dated this 21st day of December 1895.
ALFRED HITCHON,
W. E. DUCKWORTH,
Applicants.