Improvements in or relating to Covers for Carding Engines.
Year: 1897

page_text: Improvements in or relating to Covers for Carding Engines.
We, BENJAMIN ALFRED DOBSON, Engineer, and WILLIAM ISHERWOOD BROMILEY,
Manager, both of Kay Street Works, Bolton, in the County of Lancaster, do hereby
declare the nature of this Invention to be as follows:-
Our invention relates to the cover employed to inclose the space between the
upper surface of the doffer and the main cylinder of a carding engine. This cover
has a hinged door which must be opened for the purposes of grinding and
stripping the cylinder and this may require to be done several times in a day.
When by the negligence of the attendant the door is not replaced and the card is
put into work again the stripped waste drops down and conceals the open space.
Then when the workman attempts to remove the waste it is caught and carrie
forward by the wire of the cylinder and in many cases a workman has lost his
fingers or even his whole hand.
Our invention consists in preventing the door being left open at any time when
the cover is in position unless the grinding roller or stripping brush is in its
working bearings.
This may be effected in various ways for example we may pivot a weighted
lever to a convenient part of the framing and cause this lever to bear upon the
outside of the door, and by its weight keep the door normally closed.
We attach to the bearing or bush of the grinding roller and the stripping roller
a finger which when the roller is in its bearings presses on the inside of the door
or on the weighted lever and keeps the door open but when the roller is removed
the weighted lever closes the door automatically. Again, when the whole cover
is drawn forward for the purpose of gauging between the cylinder and doffer or
for other purposes the lever prevents the door shutting until the whole cover is
replaced.
Dated this 31st day of December 1896.
H. B. BARLOW & GILLETT,
Agents for Applicants.
We, Sir BENJAMIN ALFRED DOBSON, Knight, and WILLIAM ISHERWOOD
BROMILEY, Manager, both of Kay Street Works, Bolton, in the County of Lancaster,
do hereby declare the nature of this Invention and in what manner the same is to
Price 8d1

page_text: be performed, to be particularly described and ascertained in and by the following
statement:—
Our invention relates to the cover employed to inclose the space between the
upper surface of the doffer and the main cylinder of a carding engine. This cover
has a hinged door which must be opened for the purposes of grinding and stripping
the cylinder and this may require to be done several times in a day. When by
the negligence of the attendant the door is not replaced and the card is put into
work again the stripped waste drops down and conceals the open space. Then
when the workman attempts to remove the waste it is caught and carried forward
by the wire of the cylinder and in many cases a workman has lost his fingers or
even his whole hand.
Our invention consists in preventing the door being left open at any time when
the cover is in position unless the grinding roller or stripping brush is in its
working bearings.
This may be effected in various ways for example we may pivot a weighted lever
to a convenient part of the framing and cause this lever to bear upon the outside
of the door, and by its weight keep the door normally closed.
We attach to the bearing or bush of the grinding roller and the stripping roller
a finger which when the roller is in its bearings presses on the inside of the door
or on the weighted lever and keeps the door open but when the roller is removed
the weighted lever closes the door automatically. Again when the whole cover
is drawn forward into the position shown in Fig. 4, and the carding engine is
stopped for the purpose of gauging between the cylinder and doffer or for other
purposes the new position of the cover neutralizes the effect of the lever and the
door.
In the accompanying two Sheets of Drawings
Fig. 1 is a side elevation, partly in section, of part of the main cylinder and
doffer of a carding engine showing our improved cover with the door open and the
grinding roller in position.
Fig. 2 is a front sectional elevation of part of Fig. 1.
Figs. 3 and 4 are two side elevations, partly in section, Fig. 3 showing the
improved cover in the working position with the door closed, and Fig. 4 the cover
drawn forward to enable the attendant to get at the space between the cylinder and
the doffer.
Similar letters refer to similar parts throughout the several views.
is in
The cover a is arranged as usual to inclose the space between the main cylinder b
and doffer c of the carding engine, and is movable also as usual upon the cheeks
or side frames d of the doffer. The cover a has the door f hinged to it, and
according to our Invention we apply a device to this door to prevent it from being
left open except when required for stripping or when the grinding roller
position for grinding the card teeth on the main cylinder as indicated in Fig. 1.
This device, as illustrated, consists of a lever h the free end of which bears
against the outside of the hinged door f. The lever his fulcrumed at ; to any
convenient portion of the frame and is weighted say for example, by the chain
and weight k, the chain passing over a pulley 7 on the engine bend i and always
tending to raise the lever h and door f into the position indicated in Fig. 3.
When, however, the door is opened and the grinding roller g is placed in its
usual brackets o secured to the engine bend i as indicated in Fig. 1, a finger m
suspended from the axle p of the grinding roller g bears upon the door f or
lever hand holds the door open against the weight of the lever h; but when the
grinding roller g is removed the weighted lever h closes the door automatically.
Again, when the whole cover a is drawn forward into the position indicated
by Fig. 4 in order to free the space between the cylinder and doffer the lever h is
powerless to close the door f when opened on account of the end of the lever coming
immediately under the hinge of the door as clearly shown in the said Fig. 4.

page_text: Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed we declare that what
we claim is:-
1. The combination with the movable cover between the cylinder and doffer
of a carding engine and a door hinged to said cover, of means for automatically
closing said door when the cover is in its working position substantially as and
for the purposes herein set forth.
2. The combination with the movable cover a and hinged door f, of the weighted
lever arranged to close said door automatically substantially as herein set forth.
3. The combination with the movable cover a, the hinged door f and the
weighted lever h, of the grinding roller g, its axle p and a finger m suspended
therefrom all substantially as and for the purposes herein set forth.
Dated this 24th day of Sontember 1907
H. B. BARLOW & GILLETT,
17 St. Ann's Square, Manchester, Agents for Applicants.