Improvements in Exhaust Openers and Lap Machines for Cleaning Cotton.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Exhaust Openers and Lap Machines for Cleaning
Cotton.
We, JOHN PYE, of 12 Accrington Road, Blackburn, in the County of Lancaster,
Manager, and ROGER PYE, of 69 Darwen Street, Blackburn aforesaid, Mill Furnisher,
do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in the construction of Exhaust and Lap
machines for cleaning cotton, and consists of an improved construction of the bars
or grid in the exhaust box. The chief defect of aforesaid machines as heretofore
constructed was that a quantity of cotton was sent through the grid along with the
dust and dirt, and the object of this invention is to remedy the defect and ensure
the cotton being thoroughly cleaned without loss or waste caused by cotton passing
through the grid. A further advantage arises from the fact that the dust or dirt
chamber can be opened whilst the machine is at work and without choking the
machine as heretofore.
According to this invention I' construct the machine as ordinary, but the grid or
bars of the exhaust box are made as follows:-The back of the exhaust box is
curved, and along its upper portion are a series of longitudinal ribs, and at or near
the bottom or lower part is a grid, or series of bars. The cotton under operation is
forced against the longitudinal bars and thereby opened and the dust and dirt
is loosened and when the cotton falls to the bottom of the box and onto the grid, the
dust and dirt escape through the latter and leave the cotton.
The improvements can be applied to existing machines, and a convenient way of
doing this is by fixing a curved plate behind the upper part of the ordinary grid
or box of the exhaust box.
Improvements in Exhaust Openers and Lap Machines for Cleaning
Cotton.
We, JOHN PYE, of 12 Accrington Road, Blackburn, in the County of Lancaster,
Manager, and ROGER PYE, of 69 Darwen Street, Blackburn aforesaid, Mill Furnisher,
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 improvements in the construction of exhaust and lap
machines for cleaning cotton and consists of an improved construction of the bars

page_text: or grid in the exhaust box or beater casing. The chief defect of aforesaid machines
as heretofore constructed was that a quantity of cotton was sent through the grid
along with the dust and dirt, and the object of this invention is to remedy the
defect and ensure the cotton being thoroughly cleaned without loss or waste caused
by cotton passing through the grid. A further advantage arises from the fact that
the dust or dirt chamber can be opened whilst the machine is at work and without
choking the machine as heretofore.
According to this invention the back of the exhaust box or beater casing is curved
as ordinary and along its upper portion are a series of longitudinal ribs, and at or
near the bottom or lower part is a grid or series of bars. The cotton under operation
is forced against the longitudinal bars and thereby opened and the dust and dirt
is loosened and when the cotton falls to the bottom of the box and onto the grid,
the dust and dirt escape through the latter and leave the cotton.
Such being the nature and object of our said invention, the following is a com-
plete description of same, reference being had to the accompanying drawing
which is a sectional end view of the improved grid and bars for exhaust openers
for cleaning cotton.
According to this invention we construct the machine or opener in the ordinary
manner but the grid or bars of the exhaust box or beater casing are made as
follows: The back of the exhaust box or beater casing is curved and along its
upper portion are a series of longitudinal ribs or serrations 1-1 and at or near the
bottom or lower part is a grid or series of bars 2—2. The cotton under operation
is forced against the longitudinal ribs or serrations 1-1 and is thereby opened
and the dust and dirt is loosened, and when the cotton and dust and dirt falls to
the bottom of the box and onto the grid or bars 2-2 the dust and dirt escapes through
the open spaces between the bars 2-2 whilst the cotton passes on in the ordinary
manner.
By the improved construction of combined opening and loosening ribs or serra-
tions 1-1 and separating grids or bars 2-2 a great saving in cotton results and
the cotton is also better cleaned and dust and dirt separated therefrom.
The improvement. can readily be applied to existing machines, and one convenient
way of doing this is by fixing a curved plate behind the ordinary upper and open
grid or bars of the exhaust box or beater casing so that the ordinary bars or grid
being closed behind act in a manner somewhat similar to the ribs or serrations 1-1
though not so efficiently as when the ribs of serrations 1-1 themselves are employed
in the manner described and as illustrated by the drawing.
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). In combination with the exhaust box or beater casing of an exhaust cotton
opener the ribs or serrations 1-1 and the open grid or bars 2-2 as and for the
purpose herein described and substantially as illustrated by the annexed drawing.
(2) In an exhaust cotton opener an exhaust box or beater casing the back and
upper portion of which is composed of closed ribs or serrations whilst the lower
portion is composed of an open grid or series of bars as and for the purpose herein
described.