Improvements in Carding Engines.
Year: 1886

page_text: Date of Application, 24th Aug., 1886. •
Complete Left, 19th May, 1887.
Complete Accepted, 24th June, 1887..
N..
Improvements in Carding Engines.
I, EDMUND CHADWICK of 92 St. George's Road, Bolton in the County of Lancaster,
Consulting Engineer and Patent Agent, do hereby declare the nature of my said
invention to be as follows:-
This invention relates to carding engines employed in preparing cotton and other
fibrous substances. One object is to avoid the risk of accidents to which work-
people are now liable when changing the belts on carding engines.
This invention consists in providing means whereby the motion of the carding
cylinder can be reversed for the purpose of grinding, being driven from the main
driving pulleys without removing the driving strap. This I accomplish by disposing
on the framework of the machine a fixing in which is mounted a sliding block
operated and regulated by a screw. This screw is operated by a hand wheel or
other equivalents. On the sliding block are mounted suitable band or other pulleys
to guide an endless driving band or its equivalent from one pulley to another. The
ordinary fast and loose pulleys on the card cylinder shaft are provided on their outer
edges with band or other preparations of any suitable diameter, from which an endless
band or its equivalent passes to the aforesaid guide pulleys on the sliding block.
This apparatus operates as follows:-When it is intended to grind the filletting of
a carding engine the driving strap is moved on the loose pulley and the sliding block
raised by means of the screw, thus placing the endless band or its equivalent in contact
with the preparations on the outer edges of the fast and loose pulleys, by which notion
is imparted with the result that the fast pulley and carding cylinder are turned in an
opposite direction.
This apparatus is put out of gear by simply lowering the sliding block on its screw
when the endless band or its equivalent drops below the underside of the fast and
loose pulleys.
Dated the 23rd August 1886

page_text: I, EDMUND CHADWICK of 92 St. George's Road, Bolton in the County of Lancaster,
Consulting Engineer and Patent Agent, do hereby declare the nature of my said
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 carding engines employed in preparing cotton and other
fibrous substances. One object is to avoid the risk of accidents to which workpeople
are now liable when changing the belts on carding engines.
This invention consists in providing means whereby the motion of the carding
cylinder can be reversed for the purpose of grinding, being driven from the main
driving pulleys without removing the driving strap. This I accomplish by disposing
on the framework of the machine a fixing on which is mounted a sliding block operated
and regulated by a screw. This screw is operated by a hand wheel or other
equivalents. On the sliding block are mounted suitable band or other pulleys_to
guide an endless driving band or its equivalent from one pulley to another. The
ordinary fast and loose pulleys on the card cylinder shaft are provided on their outer
edges with band or other preparations of any suitable diameter, from which an endless
band or its equivalent passes to the aforesaid guide pulleys on the sliding block.
Fig. 1 is a part side elevation of a carding engine with my improvements applied
and out of action-Fig. 2 is a similar figure shewing my improved apparatus when in
action Fig. 3 is an end view of Fig. 2, and Fig. 4 a plan of same.
On the frame C of a carding engine is securely fixed, by the bolts W, the fixing D
provided with the screw E, hand wheel N, and sliding surfaces G. On the fixing D
and screw E is mounted the sliding block provided with the centres I carrying the
band pulleys K, to guide the endless band L to and from the fast pulley O and
loose pulley P on the card shaft J carrying the carding cylinder V. The diameter
of the carrier or band pulleys K are the combined width of the fast and loose
pulleys and P. The fast pulley 0 and loose pulley P are provided with the
grooves F to receive the endless band L, which may be smaller in diameter than the
pulleys O and P if desired. The strap T for driving the carding engine is driven in
the direction indicated by the arrows ✗ in the usual manner from the ordinary
gearing.
This apparatus operates as follows:-When it is intended to grind the filletting of
a carding engine the driving strap T is moved in the usual manner from the fast
pulley O to the loose pulley P, then the sliding block H is raised by turning the hand
wheel N and screw E, thus placing the endless band L in contact with the grooves F
on the outer edges of the fast and loose pulleys O and P, by which, motion is
imparted from the driven loose pulley P to the fast pulley O with the result that the
latter and the carding cylinder V are turned in the opposite direction to that when
carding as indicated by the arrow B in Fig. 2.

page_text: This apparatus is put out of gear by simply lowering the sliding block H on the
screw E, which drops the endless band L below the underside of the fast and loose
pulleys O and P as in Fig. 1, after which the driving strap T can be moved on to the
fast pulley O which causes the carding cylinder to revolve in the direction indicated
by the arrow A in Fig. 1, when carding can be performed; the whole being performed
without taking the strap off, thereby minimising accidents so prevalent through
changing straps or belts.
Having now particularly described and ascertained the nature of my said Invention
and in what manner the same is to be performed I declare that what I claim is :-
1. The method, substantially as herein described, of reversing the motion of the
cylinder of a carding engine for the purpose of grinding the filletting of same without
removing the driving strap from the line shaft and pulleys, by causing, by means of
an endless band or its equivalent, the fast pulley to be driven from the loose pulley.
2. For carrying out the method herein before described, the combination and arrange-
ment of apparatus, substantially as described and illustrated by the accompanying
drawings.