An Improved Apparatus by Means of which the Doffer and Cylinder of a Carding-engine may be Rotated at a Slow Speed whilst such Doffer or Doffer and Cylinder is or are being Ground.
Year: 1886

page_text: Date of Application, 30th Dec., 1886
Complete Left, 30th Sept., 1887
Complete Accepted, 1st Nov., 1887
An Improved Apparatus by Means of which the Doffer and
Cylinder of a Carding-engine may be Rotated at a Slow Speed
whilst such Doffer or Doffer and Cylinder is or are being
Ground.
A communication from abroad by THOMAS LEACH, of Ismailoffsky Manufactory,
Moscow, Russia, Carder.
near
1, WILLIAM THOMAS CHEETHAM of Carlton Chambers 18 Saint Ann's Street,
Manchester, in the County of Lancaster Patent Agent, do hereby declare the nature
of this invention to be as follows:-
This invention consists in an arrangement of apparatus by means of which the
doffer or doffer and cylinder of a carding-engine may be rotated at a slow speed
whilst such doffer or doffer and cylinder is or are being ground.
In carrying this invention into effect I employ an arm or bracket provided with
bearings in which and capable of being rotated therein is a short shaft. Mounted
fast upon the said short shaft are pulleys and a toothed wheel. In the arm or bracket
aforesaid is formed a hole in which and free to be rotated therein is a bush which
bush is prevented from moving endwise by collars. To the arm or bracket above
mentioned is jointed a leg or prop formed of two portions connected together by a
set-screw or other suitable means.
When it is desired to impart a slow motion to the cylinder and doffer for the
purpose of grinding such cylinder or doffer or cylinder and doffer the arm or bracket
above-mentioned is by means of the bush before referred to placed upon the axle of
the doffer at the end at which is situate the toothed wheel by means of which the
doffer is ordinarily driven and the arm or bracket before-mentioned is placed upon
the axle of the doffer in such manner that the toothed wheel upon the short shaft
before referred to will gear with the teeth of the toothed wheel upon the axle of the
doffer. The loose pulley upon the axle of the cylinder of the carding-engine is
provided with a groove. An endless band passing around the said groove

page_text: communicates motion to a grooved pulley fixed upon the short shaft before mentioned.
When the strap by means of which the carding-engine cylinder is usually driven is
placed upon the loose pulley a slow motion is communicated to the doffer by the
band aforesaid acting by means of the short shaft and pinion. A pulley fixed on the
axle of the doffer imparts motion to the cylinder by means of an endless strap or
band and the pulley which is secured to the axle of the cylinder.
By means of certain of the pulleys upon the short shaft before-mentioned and
suitable endless bands rotary motion is imparted to grinding rollers employed to
grind the card-surface of the cylinder and the doffer or the cylinder or the
doffer.
The leg or prop before mentioned being placed upon the floor prevents the
previously mentioned arm or bracket from turning upon the axle of the doffer.
To enable the toothed wheel upon the short shaft to gear with wheels of various
diameters we form the arm or bracket above mentioned in two or more parts which
may be secured together in any suitable manner.
The arrangement of apparatus above described may be readily attached to a
carding-engine for the purpose of imparting a slow rotary motion to the doffer or
doffer and cylinder and may be readily moved from one carding-engine to
another.
Dated this Twenty ninth day of December 1886

page_text: An Improved Apparatus by Means of which the Doffer and
Cylinder of a Carding Engine may be Rotated at a Slow Speed
whilst such Doffer or Doffer and Cylinder is or are being
Ground.
I WILLIAM THOMAS CHEETHAM of Carlton Chambers 18 Saint Ann's Street,
Manchester in the County of Lancaster Patent Agent 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 consists in an arrangement of apparatus by means of which the
doffer or doffer and cylinder of a carding-engine may be rotated at a slow speed
whilst such doffer or doffer and cylinder is or are being ground.
In carrying this invention into effect I employ an arm or bracket provided with
Mounted
bearings in which and capable of being rotated therein is a short shaft.
fast upon the said short shaft are pulleys and a toothed wheel. In the arm or bracket
aforesaid is formed a hole in which and free to be rotated therein is a bush which bush
or bracket above
is prevented from moving end wise by collars. To the arm
mentioned is jointed a leg or prop formed of two portions connected together by a
set screw or other suitable means.
When it is desired to impart a slow motion to the cylinder and doffer for the
purpose of grinding such cylinder or doffer or cylinder and doffer the arm or bracket
above mentioned is by means of the bush before referred to placed upon the axle of
the doffer at the end at which is situate the toothed wheel by means of which the
doffer is ordinarily driven and the arm or bracket above mentioned is placed upon
the axle of the doffer in such manner that the toothed wheel upon the short shaft
before referred to will gear with the teeth of the toothed wheel upon the axle of the
doffer. The loose pulley upon the axle of the cylinder of the carding engine is
provided with a groove. An endless band passing around the said groove
communicates motion to a grooved pulley fixed upon the short shaft before mentioned.
When the strap by means of which the carding engine cylinder is usually driven is
placed upon the loose pulley a slow motion is communicated to the doffer by the band

page_text: aforesaid acting by means of the short shaft and pinion. A pulley fixed on the axle
of the doffer imparts motion to the cylinder by means of an endless strap or band and
the pulley which is secured to the axle of the cylinder.
By means of certain of the pulleys upon the short shaft before mentioned and
suitable endless bands rotary motion is imparted to grinding rollers employed to
grind the card surface of the cylinder and the doffer or the cylinder or the doffer.
The leg or prop before mentioned being placed upon the floor prevents the previously
mentioned arm or bracket from turning upon the axle of the doffer.
To enable the toothed wheel upon the short shaft to gear with wheels of various
diameters I form the arm or bracket above mentioned in two or more parts which
may be secured together in any suitable manner.
In the accompanying drawing Fig. 1 is a side elevation and Fig. 2 a plan showing
so much of a carding engine as is necessary to show the invention and the manner in
which it is to be employed. The apparatus in which the invention consists is shown
in the drawing as applied to a carding engine and in use for imparting a slow motion
to the cylinder a and doffer b of the carding engine. In the accompanying drawing
c is an arm or bracket provided with bearings c in which and capable of being
rotated therein is a short shaft d. Mounted fast upon the short shaft d are pulleys e
and and a toothed wheel g, the boss of the pulley e preventing the short shaft d
from moving longitudinally. In the arm or bracket c is formed a hole in which and
free to be rotated therein is a bush h which bush h is prevented from moving end wise
by means of collars. On the arm or bracket c is a projecting part in which is
fixed a stud which passes into a hole formed in one end of a rod k a portion of
which rod k passes into a tube 1. The tube is provided with a set screw by
means of which the tube and rod
may be secured together the tubo land rod k
together constituting a prop which will be hereinafter referred to as the prop A.
When it is desired to impart a slow motion to the doffer b and cylinder a the arm or
bracket c is by means of the bush / placed upon the axle b¹ of the doffer b at the end
at which is situate the toothed wheel m by means of which the doffer 6 is ordinarily
driven and the arm or bracket c is placed upon the axle 6 of the doffer in such
manner that the teeth of the toothed wheel will gear with the teeth of the toothed
wheel m upon the axle 6 of the doffer b. The loose pulley n upon the axle a¹ of the
cylinder a of the carding engine is formed or provided with a groove n¹. An endless
bando passing around the groove n¹ communicates rotary motion to the grooved
pulley When the strap by means of which the carding engine cylinder a is usually
driven is placed upon the loose pulley n a slow motion is communicated to the doffer b
by the band o acting by means of the pulley short shaft d wheel g and wheel m. A
pulley p fixed on the axle 6 of the doffer imparts motion to the cylinder a by means
of an endless strap or band q and a pulley secured to the axle a¹ of the cylinder a.
The pulley e is formed with two grooves e¹ and e². The groove e' by means of an
endloss band s communicates rotary motion from the shaft d to the grinding roller t
supported by the brackets tordinarily employed for supporting the grinding roller
by which the doffer is ground. The groove e by means of an endless band u
communicates rotary motion from the shaft d to the grinding roller v supported by
the brackets v¹ ordinarily employed for supporting the grinding roller by means
of which the cylinder a is ground. The brackets and are omitted from Fig. 2 in
order to avoid confusion of the lines. The leg or prop A before mentioned being
placed upon the floor B prevents the arm or bracket c from turning upon the axle
of the doffer b. To enable the toothed wheel g to gear with wheels m of various
diameters I form the arm or bracket c in two parts c² and c³ secured together by
means of bolts w and nuts screwed upon such bolts w.
The arrangement of apparatus above described may be readily attached to a carding
engine for the purpose of imparting a slow motion to the doffer or doffer and
cylinder and may be readily moved from one carding-engine to another.
"
When what are known as " Horsfall's grinders which require driving at both
ends are employed in place of grinding rollers such "Horsfall's grinders
are driven
at one end from the axle a' by incans of the band x and pulleys y, z.

page_text: Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what I
claim is :-
'
For rotating the doffer and cylinder of a carding-engine at a slow speed whilst
such doffer or doffer and cylinder is or are being ground the apparatus hereinbefore
described which apparatus consists in an arm or bracket such as c provided with a
prop such as A and bush such as h and provided with bearings such as c¹ supporting
a short shaft such as d provided with pulleys such as e. f and a toothed wheel such
as g all constructed, arranged employed and operating for the purposes and
substantially in the manner herein before described in reference to and indicated in
and by the drawing hereunto annexed.
Dated this Twenty ninth day of September 1887.