Improvements Applicable to the “Dust Trunks" or "Dust Chambers” through or along which the Cotton or other Fibrous Material Passes in its Transit from the "Breaking up and Feeding Machines" to the "Exhaust Openers" or "Lap Machines,' employed in the Preparation" of Cotton and other Fibrous Materials.
Year: 1889

page_text: Date of Application, 13th Apr., 1889
* Complete Specification Left, 13th Jan., 1890-Accepted, 15th Feb., 1890
'
PROVISIONAL SPECIFICATION.
Improvements Applicable to the “Dust Trunks" or "Dust Chambers”
through or along which the Cotton or other Fibrous Material
Passes in its Transit from the "Breaking up and Feeding
Machines" to the "Exhaust Openers" or "Lap Machines,'
employed in the Preparation" of Cotton and other Fibrous
Materials.
66
I, THOMAS RODGERSON MARSDEN of 94 Greengate Street Oldham in the county of
Lancaster Foreman in the employ of Messieurs Platt Brothers and Company Limited
of Oldham aforesaid Machinists do hereby declare the nature of this invention to be
as follows:-
My invention relates to the "dust trunks" or "dust chambers" through or along which
the cotton or other fibrous material passes in its transit from the "breaking up" and
feeding machines "to the "exhaust openers" or "lap machines" employed in the
preparation" of cotton and other fibrous materials.
"
or
"
According to the arrangements at present in use each of the "dust trunks"
"dust chambers" through or along which the cotton or other fibrous material passes
in its transit from the "breaking up" and "feeding machines" to the "exhaust
openers or lap machines" employed in the "preparation" of cotton and other
fibrous materials is usually formed or provided with "dust boxes" which communicate
at their upper ends with the interior of the "dust trunk" ог "dust chamber" and
are at their lower ends each provided with a door or doors so that the external air is
prevented from being drawn into the interiors of the said "dust boxes." When
cotton or other fibrous material is passing along the "dust trunk" or "dust chamber
before mentioned dust or dirt from the cotton or other fibrous material will fall into
the "dust boxes" previously referred to. When it becomes necessary or desirable
to remove from the "dust boxes" the dust and dirt accumulated therein the "breaking
up and feeding machine" and the "exhaust opener or "lap machine" will require
to be "stopped." When the "breaking up and feeding machine" and the "exhaust
opener or "lap machine" have been "stopped" the doors above mentioned may be
opened so as to allow the dust and dirt to fall from the "dust boxes" and after the
said doors have been again closed the " breaking up and feeding machine and
the "exhaust opener" or "lap machine" may be again " started." To "stop"
the "breaking up and feeding machine" and "exhaust opener" or lap machine
whenever it is necessary or desirable to remove the accumulated dust and dirt from
the "dust boxes is not only inconvenient but also seriously interferes with the
amount of work accomplished by the "breaking up and feeding machine" and
"exhaust opener or "lap machine."
"
وو
"
"
"
or
"
"
"
or
My invention consists firstly in arrangements by which I am enabled to remove a
greater quantity of dust and dirt from the cotton or other fibrous material whilst such
cotton or other fibrous material is passing through or along the "dust trunk"
"dust chamber" through or along which the cotton or other fibrous material passes
from the "breaking up and feeding machine" to the "exhaust opener" "lap
machine" in conjunction with which such "dust trunk or aust chamber
employed and secondly in arrangements by means of which the dust and dirt
separated from the cotton or other fibrous material may be readily removed from
the receptacles or chambers in which it is deposited, without stopping" the
machines.
33
..
"
According to one part of my invention I employ for the purpose of conducting the
cotton or other fibrous material from the "breaking up and feeding machine" to the
"exhaust opener
or "lap machine" " dust trunk ог "dust chamber
of any
convenient form in the lower part or which "dust trunk" or "dust chamber" I place
"
a
"

page_text: an
"
or
"endless" travelling cloth or lattice which passes around two or more rollers or
pulleys placed at or near the ends or in other suitable parts of the "dust trunk
dust chamber." One or more or all of the rollers or pulleys before mentioned may
be employed to transmit motion to the travelling cloth or lattice. I provide the
cloth or lattice with ribs or bars or receptacles between or into which dust
and dirt from the cotton or other fibrous material passing over the cloth or lattice
may fall or be deposited. The movement of the endless cloth or lattice will carry
with it the dust and dirt falling upon the upper surface of the cloth or lattice so that
when the cloth or lattice passes round the rollers or pulleys on its return journey it
will allow the dust or dirt to fall into the receptacle or chamber provided for it at or
near one end of the "dust trunk" or "dust chamber." The return movement of the
lower portion of the cloth or lattice will also carry forward or remove any dust or dirt
which may fall upon the lower surface of the "dust trunk" ог "dust chamber" so
as to allow it to fall into a receptable or chamber at or near the other end of the
dust "trunk " 16
ог dust chamber." In order to enable the dust and dirt deposited in
the said receptacle or chamber or receptacles or chambers to be readily removed
therefrom whilst the machines are at work we provide such receptacles or chambers
with suitable doors. The cloth or lattice above mentioned may be caused to move
so that the upper surface of such cloth or lattice shall move in the same direction
as the cotton or other fibrous material passing through or along the "dust trunk"
or "dust chamber" or in a contrary direction.
In some cases I dispense with one of the receptacles or chambers above referred to
and employ but one of such receptacles or chambers.
Another part of my invention consists in arrangements by which I am enabled to
remove the dust or dirt from the receptacle or chamber or receptacles or chambers
before mentioned without it being necessary to "stop" the "breaking up and feeding
machine" and "exhaust opener or lap machine" in connection with which the dust
trunk or dust chamber is employed.
According to this part of my invention I provide the receptacle or chamber or
each of the receptacles or chambers with two doors or two sets of doors so that when
one of such doors or one of such sets of doors is opened the accumulated dust and
dirt will be allowed to fall into a lower portion of the receptacle or chamber from
which it may be removed or allowed to fall after the said door or set of doors has
been again closed. This door or set of doors having been closed the other door or set
of doors may be opened to allow the dust or dirt to be removed or the order in which
the doors or sets of doors are opened or closed may be reversed. By such doors or
sets of doors being opened and closed in proper order the accumulated dust or dirt
will be allowed to fall and be removed from the said receptacle or chamber.
Dated this Twelfth day of April 1889.
W. T. CHEETHAM,
Manchester, Agent to the Applicant.
COMPLETE SPECIFICATION.
"
Improvements Applicable to the "Dust Trunks" or "Dust Chambers
through or along which the Cotton or other Fibrous Material
Passes in its Transit from the 66 Breaking up and Feeding
Machines" to the "Exhaust Openers or "Lap Machines,'
employed in the Preparation of Cotton and other Fibrous
Materials.
"
I THOMAS RODGERSON MARSDEN, of 94 Greengate Street, Oldham in the county
of Lancaster, Foreman, in the employ of Messieurs Platt Brothers and Company
Limited, of Oldham aforesaid, 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 :-
My invention relates to the "dust trunks" or "dust chambers" through or along
which the cotton or other fibrous material passes in its transit from the "breaking up

page_text: "
or "lap machines" employed in
or
When
and feeding machines" to the "exhaust openers
the "preparation" of cotton and other fibrous materials.
According to the arrangements at present in use each of the "dust trunks"
"dust chambers" through or along which the cotton or other fibrous material passes
in its transit from the "breaking up and feeding machines" to the "exhaust
openers or "lap machines" employed in the preparation of cotton and other fibrous
materials is usually formed or provided with "dust boxes" which communicate at
their upper ends with the interior of the "dust trunk" 66
or dust chamber" and are
at their lower ends each provided with a door or doors so that the external air is
prevented from being drawn into the interiors of the said "dust boxes."
cotton or other fibrous material is passing along the "dust trunk"
or "dust
chamber" before mentioned, dust or dirt from the cotton or other fibrous material
will fall into the "dust boxes" previously referred to. When it becomes necessary
or desirable to remove from the "dust boxes," the dust and dirt accumulated
therein the "breaking up and feeding machine" and the "exhaust opener" or "lap
machine will require to be stopped. When the "breaking up and feeding
machine" and the "exhaust opener or "lap machine " have been " stopped" the
doors above mentioned may be opened so as to allow the dust and dirt to fall from
the "dust boxes" and after the said doors have been again "closed" the "breaking
up and feeding machine" and the "exhaust opener or "lap machine
may he
again "started." To "stop" the "breaking up and feeding machine and "exhaust
opener or "lap machine" whenever it is necessary or desirable to remove the
accumulated dust and dirt from the "dust boxes" is not only inconvenient but also
seriously interferes with the amount of work accomplished by the "breaking up and
feeding machine" and "exhaust opener or "lap machine."
"
"
"
or
"
وو
"
My invention consists firstly in arrangements by which I am enabled to remove
a greater quantity of dust and dirt from the cotton or other fibrous material
while such cotton or other fibrous material is passing through or along
the "dust trunk' "dust chamber through or along which the cotton
or other fibrous material passes from the "breaking up and feeding machine"
to the "exhaust opener "
"lap machine" in conjunction with which such "dust
trunk or dust chamber" is employed, and secondly in arrangements by means of
which the dust and dirt separated from the cotton or other fibrous material may be
readily removed from the receptacles or chambers in which it is deposited, without
stopping the machines.
"
"
or
وو
of any
According to one part of my invention I employ for the purpose of conducting the
cotton or other fibrous material from the "breaking up and feeding machine" to the
"exhaust opener
or "lap machine" a "dust trunk or "dust chamber
convenient form, in the lower part of which "dust trunk" or "dust chamber" I place an
"
endless travelling cloth or lattice which passes around two or more rollers or
pulleys placed at or near the ends or in other suitable parts of the "dust trunk' or
"dust chamber."
"
One or more or all of the rollers or pulleys before mentioned, may be employed to
transmit motion to the "travelling cloth" or "lattice." I provide the cloth or lattice
with ribs or bars or receptacles between or into which dust and dirt from the cotton or
other fibrous material passing over the cloth or lattice may fall or be deposited. The
movement of the endless cloth or lattice will carry with it the dust and dirt falling
upon the upper surface of the cloth or lattice, so that when the cloth or lattice passes
round the rollers or pulleys on its return journey it will allow the dust or dirt to fall
into the receptacle or chamber provided for it at or near one end of the "dust trunk'
or "dust chamber." The return movement of the lower portion of the cloth or lattice
will also carry forward or remove any dust or dirt which may fall upon the lower
surface of the "dust trunk " or "dust chamber" so as to allow it to fall into a
receptacle or chamber at or near the other end of the "dust trunk" «
ог dust
chamber."
"
In order to enable the dust and dirt deposited in the said receptacle or chamber or
receptacles or chambers to be readily removed therefrom whilst the machines are at-

page_text: work I provide such receptacles or chambers with suitable doors. The cloth or lattice
above mentioned may be caused to move so that the upper surface of such cloth or
lattice shall move in the same direction as the cotton or other fibrous material
passing through or along the "dust trunk" or "dust chamber" or in the contrary
direction.
"
Another part of my invention consists in arrangements by which I am enabled to
remove the dust or dirt from the receptacle or chamber or receptacles or chambers
before mentioned without it being necessary to stop the "breaking up and feeding
machine" and "exhaust opener or "lap machine" in connection with which the
" dust trunk or "dust chamber" is employed.
""
According to this part of any invention I provide the receptacle or chamber or each
of the receptacles or chambers with two doors or two sets of doors so that when one
of such doors or one of such sets of doors is "opened" the accumulated dust and dirt
will be allowed to fall into a lower portion of the receptacle or chamber from which it
may be removed or allowed to fall after the said door or set of doors has been again
closed. This door or set of doors having been closed the other door or set of doors
may be "opened to allow the dust or dirt to be removed, or the order in which
the doors or sets of doors are "opened" or closed may be reversed. By such doors
or sets of doors being "opened" and closed in proper order the accumulated dust or
dirt will be allowed to fall and be removed from the said receptacle or chamber.
"
In the accompanying drawing Fig. 1 is an elevation in section, Fig. 2, a plan and
Fig. 3 a cross section taken on the line (A B) of Figs. 1 and 2. Fig. 4 is an
elevation showing part of the dust trunk or dust chamber.
The same letters of reference are applied to corresponding parts in all the said
figures.
"
al
or
"
88
"
"
According to one part of my invention 1 employ for the purpose of conducting the
cotton or other fibrous material from the "breaking up and feeding machine
to the
"exhaust opener" or "lap machine "dust trunk « dust chamber" (a) of any
convenient form in the lower part of which "dust trunk ог dust chamber" (a) I
. place an "endless" travelling cloth or lattice (b) which passes around two rollers or
pulleys (c) (c) placed at or near the ends of the "dust trunk" or "dust chamber" (a).
The rollers or pulleys (c) (c) are respectively mounted upon axles (d) which are
carried by and capable of being rotated in bearings secured to the "dust trunk' ог
"dust chamber" (a). The bearings which carry the roller (c) are provided with
means by which the tension of the endless travelling cloth or lattice is adjusted. In
order to keep the upper surface of the lattice (b) as near a straight line as possible, I
place between the rollers or pulleys (c) (c) rollers or pulleys such as (e) (e) which
are mounted upon axles (e¹) carried by and capable of being rotated in bearings
secured to the "dust trunk" or "dust chamber" (a). I secure to the cloth or
lattice (b) ribs or bars (p) made of wood, metal or other suitable material and of any
desired forin, and fixed at suitable distances from each other, the spaces between
the ribs or bars forming receptacles into which the dust and dirt falls as it is
separated from the cotton or other fibrous material whilst the cotton or other
fibrous material is passing over the surface of the lattice (b). Fast upon the
axle (d) of the roller (c) I mount a wheel (f) gearing into which is a worm (g)
fast upon a short shaft (7) carried by and capable of being rotated in a bracket (k)
secured to the side of the "dust trunk " or dust chamber" (a). Fast upon the
shaft (h) is a bevel wheel (1) gearing into the bevel wheel (m) secured upon the
short shaft (n) suitably mounted and provided with a pulley (o) which receives
rotary motion from any convenient source. By this means motion is communicated
to the roller (c) and thereby to the travelling lattice (b) which may be caused to
revolve in the direction indicated by the arrow (D) as shown in Fig. 1 which I
prefer, or in the contrary direction according as the pulley (o) is driven. The
movement of the "endless" cloth or lattice (6) will carry with it the dust and dirt
falling upon the upper surface of it so that when the cloth or lattice, (b), passes
round the roller or pulley (c¹) on its return journey it will allow the dust and
dirt to fall into the receptacle or chamber (9) forming part of the "dust trunk" or
T

page_text: "dust chamber" (a), such receptacle or chamber (9) being formed at or near one
end of the "dust trunk" ог dust chamber" (a). The movement of the lower
portion of the cloth or lattice (b) will carry forward or remove any dust or dirt
"dust
which may fall upon the lower surface (a¹) of the "dust trunk" or
chamber "(a) with which it comes into contact so as to allow such dust and dirt to
fall into the receptacle or chamber (91) sitnate at or near the other end of the "dust
trunk" or "dust chamber" (a). In order to enable the dust and dirt deposited in
the receptacle or chamber (9) to be readily removed therefrom whilst the machines
are at work, without it being necessary to "stop" the "breaking up and feeding
machine" and "exhaust opener or "lap machine" in connection with which the
"dust trunk" or "dust chamber" is employed, I employ the arrangements which
are shown in the detached view Fig. 4, which shows the receptacle (g) situate at
one end of the "dust trunk" or "dust chamber" (a).
"
(r),
chI provide the receptacle or chamber (31) wisected to a smart (2) which is supported
by and capable of being turned in bearings formed upon or secured to the sides of
the. chamber or receptacle (9). Secured upon the shaft (s) is a lever (t) one end of
which is formed into a handle (t¹). Secured upon the lever (t) is a weight (t) which
counterbalances the weight of the door (r) and tends to turn such door (r) in the
direction indicated by the arrow (E) and keep the edge (³) of the door (r) in contact
with the rib (2) secured to the chamber or receptacle (9). When a quantity of dust
or dirt has accumulated upon the upper surface of the door (r) the door (r) is turned
by means of the handle (t) in the direction opposite to that indicated by the arrow (E)
so as to allow the dust or dirt to fall into the chamber (w) and upon the upper surface
of the door (r) which is constructed and operated like the door (r). The door (r) is
then closed. The door (¹) may now by means of the handle (¹) be turned in the
direction indicated by the arrow (F) and be caused to allow the dust or dirt to fall
from the chamber (w) after which the door (r¹) is again closed. The above described
order in which the doors (r) and (¹) are opened may be reversed.
By the doors (r) and (1) being opened and closed in proper order the accumulated
dust or dirt will be allowed to fall and be removed from the receptacles or chambers (q)
and (g).
Although I have in Fig. 4 only shown the receptacle or chamber (9)
situate at one end of the "dust trunk" or "dust chamber" (a) I would have it
understood that I also employ a similar receptacle or chamber at the other end of the
"dust trunk or "dust chamber" (a).
"
A modification of the arrangements for removing the dust or dirt from the
receptacles or chambers (9), (q) is shown in Fig. 1. In this arrangement only one
door is used to each of the receptacles or chambers (9) and (9').
When a quantity of dust or dirt has accumulated in the chamber or receptacle (g)
the attendant by means of the handle (t') turns the door (r) in a direction opposite to
that indicated by the arrow (E) and allows the dust or dirt to fall from the chamber
or receptacle (y) upon the floor or into a bag or other receptacle, or the receptacle or
chamber (9) may be carried down to the floor and thence into a dust chamber. When
a bag is employed to receive the said dust or dirt such bag may be hung upon
hooks (9) with which the exterior surface of the chamber or receptacle (9) is
provided. When the dust or dirt has been allowed to fall from the chamber or
receptacle (q) the door (r) is again closed. In some cases I form each of the
weights (3) of such a weight that when a determined weight of dust or dirt has
accumulated in the chamber or receptacle (q) or (g¹) the door (r) used with such
chamber or receptacle will be opened by the weight of the accumulated dust or dirt
overbalancing the weight (t) which dust ar dirt will thereupon be allowed to fall
from the said chamber or receptacle the door (r) again closing after the dust or dirt
has fallen from the chamber or receptacle, by the action of the weight (t).
or
In order to prevent or hinder air from being drawn into the "dust trunk"
"dust chamber" (a) when the door (r) is opened, I place at the opposite ends of the
cloth or lattice (b) plates (u) which I secure to the "dust trunk "
or "dust
chamber" (a) such plates (u) respectively extending over the spaces between the

page_text: cloth or lattice (b) and the ends (9'), (9') of the chambers or receptacles (y) (q¹)
respectively.
"
or
I have above described my invention as applied in cases in which a "breaking
up and feeding machine" is employed to deliver the cotton or other fibrous
material to a " dust trunk" "
"exhaust opener"
dust chamber" by which it is conducted to an
or "lap machine" but in some cases I dispense with the
breaking up" part of the "breaking up and feeding machine"
to and the cotton or other fibrous material is then placed "by hand
previously referred
"feeding machine" or a "feeding table" from which it passes to the "dust trunk"
or "dust chamber" through which the cotton or other fibrous material passes from
the said "feeding machine" or "feeding table to the "exhaust opener
machine."
وو
دو
upon the
or
lap
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
"
1. The construction and arrangement of "dust trunks" or dust chambers"
consisting of the "dust trunk" (a), travelling cloth or lattice (b), bars (p), plates (u) (u)
the receptacles (9), (9'), (w), (w), the doors (r) and (¹) and arrangements for
operating the same, arranged, employed and operating for the purposes and
substantially in the manner herein before described and set forth in and by the
accompanying drawing.
"
2. The construction and arrangement of "dust trunks' ог "dust chambers con-
sisting of the dust trunk (a), travelling cloth or lattico (b), bars (p), plates (u), (u),
the receptacles (9) (g¹), the doors (r) and (r) and arrangements for operating the
same, arranged, employed and operating for the purposes and substantially in the
manner hereinbefore described and set forth in and by the accompanying drawing.
3. In "dust trunks" 64
dust chambers" through or along which cotton or other
fibrous material passes to an
"exhaust opener" "6
or lap machine," the use of an
endless travelling cloth or lattice provided with ribs or bars or receptacles, arranged,
employed and operating for the purposes and substantially in the manner herein before
described and set forth in and by the accompanying drawing.
ог
"
"
4. In conjunction with the "dust trunk" or "dust chamber" through or along
which cotton or other fibrous material passes to an "exhaust opener ог lap
machine" the use of the receptacles or chambers (7) and (g¹) and (w) (10), provided
with doors such as (r) and (¹) and arrangements for operating the doors (r) and (¹),
arranged, employed, and operating for the purposes and substantially in the manner
hereinbefore described and set forth in and by the accompanying drawing.
Dated this Eleventh day of January 1890.