Packing and Filtering Laundry Blue.
Year: 1893

page_text: Date of Application, 4th May, 1893
Complete Specification Left, 3rd Feb., 1894-Accepted, 10th Mar., 1894
Packing and Filtering Laundry Blue.
THOMAS MARSDEN COCKROFT Depôt Manager of 67 Burley Lodge Terrace
Leeds, in the County of York do hereby declare the nature of this invention to be
as follows:-
My invention relates to packing and filtering block and powder blues; and has
for its object the production of a seamless envelope to contain blue; and which,
moreover, will filter blue, when expressed through the seamless envelope.
In carrying out my invention; I take either block or powder blue and wrap and
seal up the same in strong paper, preferably wrapped in ball form.
I then completely cover the paper package with cotton "fly" and wind around
the package so covered, a thin layer of wool carding, preferably taken direct from
the carding engine, until a sufficient thickness is obtained.
Simultaneously with the cotton "fly "and wool "carding," I wind around a
fine cotton thread, as a binding medium for the "fly" and " carding."
To interlace the cotton and wool fibres, I partially felt or "harden" their
respective coverings, by immersing the package (prepared as herein before described)
in warm water, and subjecting the said package to friction and pressure by rapid
rotation in the palin of the hands, until the whole outer layer of wool is sufficiently
felted; meanwhile, taking care that the pressure and friction exerted, is not too
much, to fracture the sealed paper wrapper, before the operation of felting is
completed.
Dated this the Third day of May 1893.
THOMAS MARSDEN COCKROFT.
Packing and Filtering Laundry Blue.
THOMAS MARSDEN COCKROFT of 67 Burley Lodge Terrace in the City of
Leeds, Depôt Manager 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 packing and filtering block and powder blue and the
like, and has for its object the production of a seamless envelope to contain blue
or other coloring matter, and which, moreover, will filter coloring matter when
expressed through said seamless envelope.
I will now proceed to describe my invention by the aid of the sheet of drawings
hereto annexed, in which corresponding letters denote corresponding parts in all
the figures.
In carrying out my invention, I take either block or powder blue A, and wrap
same up in strong paper B, preferably in spherical form.
"
I now tie up or seal the opening in loop form, as shown in Figs. I, II, III.
I thereupon entirely cover the above described paper package with cotton
'fly" C Fig. II; and now wind around the package so covered, a thin layer of
wool "carding" D (Fig. III,) preferabiy taken direct from the carding engine, in
a narrow strip, until a sufficient thickness is obtained.

page_text: Simultaneously with the cotton "fly" C, and wool carding D, Iowind around a
fine cotton thread E, as a binding medium, as shown in Fig. II.
To interlace the cotton and wool fibres, I partially felt or "harden" their
respective coverings, by immersing the package as shown in Fig. III, in warm
water and subject said package to friction and pressure by rapid rotation in the
palm of the hands, until the whole outer layer of wool fibres, are sufficiently felted;
meanwhile, taking care that the pressure and friction is not to much too cause the
fracture of the paper wrapper B.
Fig. IV is a section through the centre of the finished article and shows the
fluffy coverings C and D felted and shrunk up to the wrapper B.
To use said package for laundry purposes it is necessary that the package should
be immersed in water, that wrapper B should be fractured by pressure, upon
which the coloring matter will filter through the interstices of the envelopes C
and D.
I prefer a spherical form of package, but I do not wish to limit my invention to
this form only, because such packages may be made up in cylindrical, bag, and
other forms, without departing from the principle of this invention.
Having now particularly described and ascertained the nature of my inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is,
1. As a new article of manufacture, a package for filtering and holding blue, or
other similar coloring matter, having an outer seamless wool covering D, an inner
layer of cotton "fly" C substantially as described and set forth.
II. The process of making up packages of blue or the like, by enclosing blue in
a wrapper B, coverings C and D and partially felting said coverings substantially
as described.
Dated this the Second day of February 1894.
THOMAS MARSDEN COCKROFT.