Improvements in Carding Engines for Fibrous Materials.
Year: 1894

page_text: Date of Application, 26th Oct., 1394
Complete Specification Left, 24th July, 1895-Accepted, 21st Sept., 1895
PROVISIONAL SPECIFICATION.
Improvements in Carding Engines for Fibrous Materials.
We, EDMUND TWEEDALE, SAMUEL TWEEDALE, and JOSEPH SMALLEY, of
Castleton, near Manchester, in the County of Lancaster, Machinists do hereby
declare the nature of this invention to be as follows:-
:-
This invention relates to mechanism for driving the doffer of carding engines,
whereby the doffer can be driven at the ordinary working speed or at a reduced
speed or stopped entirely, whereby on the breaking of a sliver between the doffer
and the calleuder or drawbox rollers greater facility is afforded for piering up.
In carrying out the first part of our invention we employ two belt pulleys both
of them running loose on the shaft that carries the wheel for driving the doffer.
Fixed to one of these pulleys is a small pinion wheel which gears into a double
carrier running on a stud connected to the plate part of the other pulley. This
double carrier also gears into a wheel fixed to the shaft that drives the doffer. We
arrange the belt guide mechanism so that the belt can either drive both pulleys at
the same time or only one pulley. When only one pulley is driven by the belt,
the other is free to revolve in the opposite direction, and hy so doing allows the
doffer to stop. We also arrange that when the belt guide is moved to one end it
brings a projection which is on the belt guide in contact with the pulley that is
running in the opposite direction, and so stops it, thus giving slow motion to the
doffer through the wheels connected to the two pulleys.
Dated this Twenty-fifth day of October One thousand eight hundred and
ninety-four.
Improvements in Carding Engines for Fibrous Materiais.
We EDMEND TWEEDALE, SAMUEL TWEEDALE, and JOSEPH SMALLEY, all of
Globe Works, Castleton, near Manchester, in the County of Lancaster, Machinists,
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 mechanism for driving the doffer of carding engines,
whereby the doffer can be driven at the ordinary working speed, or at a reduced
speed, or stopped entirely, thus facilitating "piecing up" and preventing waste.
In carrying out this invention, we employ two belt pulleys, both of them running
loose on the shaft that carries the wheel for driving the doffer. Fixed to one of
these pulleys is a small pinion wheel which gears into a double carrier running on
a stud connected to the plate part of the other pulley. This double carrier also
gears into a wheel carried on the shaft that drives the doffer.
We arrange the belt guide mecbauism so that the belt can either drive both

page_text: '
pulleys at the same time, or only one pulley. When only one pulley is driven by
the belt, the other is free to revolve in the opposite direction, and by so doing
allows the doffer to stop. We also arrange that when the belt guide is moved to
one end, it brings a projection or brake which is on the belt guide, into contact
with the pulley that is running in the opposite direction, and so stops it, thus giving
slow motion to the doffer through the wheels connected to the two pulleys.
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:-
Fig. 1 is a side elevation of a carding engine, having our improvements applied
thereto.
Fig. 2 is a side elevation of the improved mechanism for the purpose herein
set forth.
Fig. 3 is an end elevation of Fig. 2.
Fig. 4 is a detail of part of Fig. 3.
Fig. 5 is a sectional side elevation of the pullies and gear connected
therewith.
According to this invention, we employ two belt pulleys 1-2, both of which
are loose on the shaft 3 carrying the wheel 4 for driving the ordinary wheel 5 of
the doffer, and consequently the doffer through the double carrier 6-7. Fixed to
the boss of the pulley 1 is a small pinion wheel 8, which gears into a double
carrier 9-10 carried in a bracket 11 fixed to the plate part of the pulley 2. The
carrier 9 gears into the wheel 8 fixed to the pulley 1, and the carrier 10 gears with
the wheel 4 for driving the doffer. The belt guide or fork 12 is mounted on the
round shaft 13 so as to be free to be slided to and fro thereon, and the upper
part 14 of the belt guide or fork 12 is by stud 15 connected to the crank 16
carried on the shaft 17, on which is also the stop handle 18. A pin or stud 19 is
fixed in the stop handle 18, and by moving the handle 18 so that the piu or
stud 19 rests in the notch 20 of the bracket 21, the position of the belt guide or
fork 12 can be adjusted. By this means of adjustment, the driving belt can readily
be moved from the pulley 1 so as to be partially on both pulleys 1 and 2, and the
speed of the doffer is regulated according as the driving belt is in one or other of
the positions indicated at A in Fig. 3, and as hereinafter described.
At 22 is a stud for carrying the two pulleys 1-2 and wheels, and 23 is a lever
carrying the double carrier 6-7 for driving the doffer.
"
The action is as follows:-When the belt is in the position marked "quick
(Fig. 3) and in contact with and driving both pulleys, 1-2 these act practically as
one pulley and revolve together, and the double carrier 9-10 is also carried
round, but the wheels 9-10 do not revolve round their own axes, the teeth of the
wheel 10 gearing into the wheel 4 and driving it, and through it and the double
carrier 6-7, the doffer.
When the driving belt is moved to the position marked "stop" in Fig. 3, the
pulley 1 only is driven by the belt, and the pulley 2 revolves in the opposite
direction in consequence of the wheel 4, double carrier 6-7, and doffer offering a
greater resistance than the pulley 2, and the doffer is stopped.
When the driving belt is moved to the position marked "slow" in Fig. 3, a
bevelled and leather covered projection or brake 25 on the belt guide 12 comes
into contact with the bevelled portion 26 of the pulley 2, and the latter is
prevented from revolving; and the pulley 1 by means of the pinion 8 and double
carrier 9-10, drives the wheel 4 and a slow driving of the doffer is obtained, the
speed of the doffer depending on the relative proportion of the teeth in the
wheels 8-9-10-and 4.
For driving the grinding rollers, two grooves 26-26 are formed in the pulley 1,
and the grinding rollers are driven by ropes therefrom, the pulley 1 being then
driven by a rope in the groove 27 from the loose pulley on the cylinder shaft 28.
The brake 25 is applied to the pulley 2 and the doffer, is then driven at the slow
speed, the cylinder being driven from the doffer by belt in the ordinary way.

page_text: 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 mechanism
constituting the improved driving mechanism for the doffers of carding engines,
and means for controlling same, as herein fully described and substantially as
illustrated by the annexed drawings.
(2.) The loose pullies 1-2, pinion 8, double carrier 9-10, and wheel 4, all in
combination, as and for the purpose herein described, and as illustrated by Fig. 5
of the annexed drawings.
(3.) The belt fork or guide 12 having the projection or brake 25, crank 16,
shaft 17, stop handle 18, stud or projection 19, and notched bracket 21, all in
combination, as and for the purpose herein described, and substantially as illustrated
by Fig. 3 of the accompanying drawings.
Dated this 22nd day of In..1.. 1905
EDMUND TWEEDALE,
SAMUEL
TWEEDALE,
JOSEPH SMALLEY,
their Agents, Brierley & Howard,
Penny Bank Chambers, Halifax.
EDMUND TWEEDALE,
SAMUEL TWEEDALE,
JOSEPH SMALLEY,
By their Agents, Brierley & Howard,
Penny Bank Chambers, Halifax.