Improvements in the Manufacture of Blue or Bleaching Materials for Washing Purposes.
Year: 1891

page_text: Date of Application, 1st Aug., 1891
Complete Specification Left, 30th Apr.. 1892-Accepted, 18th June, 1892
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Blue or Bleaching Materials
for Washing Purposes.
We THOMAS HENRY REES of 32 Craven Street Charing Cross Merchant and
WILLIAM PHILLIPS BLACKHAM Merchant of 32 Craven Street Charing Cross
both in London and in the County of Middlesex do hereby declare the nature of
this invention to be as follows
11
Blue or other bleaching materials used in washing clothes or linen or for laundry
purposes are usually made in solid cakes cubes or cylinders and in the process of
manufacture these take a long time to dry and become hard and then when
required for use they take an inconveniently long time to soften and disolve.
In order to remedy these two difficulties the one connected with the manu-
facture and the other affecting the utility of blue or bleaching materials for
washing clothes or linen or for laundry purposes we propose to make the cakes―
cubes or cylinders of blue or bleaching materials with hollow centers-or with
a hole of any suitable size or shape through the center. By this method a nearly
double surface is presented for drying consisting of the outer surface and inner
surface formed by the hollow cavity or hole through the center and cakes cubes or
cylinders thus made will dry and harden in about half the time that they will when
made solid thus rendering the process of manufacturing much more expeditious.
In actual use the double surface is again presented to and acted upon by the water
and therefore the cake cube or cylinder of blue or bleaching material is softened or
dissolved in half the time and this saves time and renders the cakes cubes or
cylinders manufactured in this way more useful-and at the same time a means is
provided of making cakes-cubes-or cylinders thus made more efficatious because
the hollow center or hole through may be charged or filled with a soluble salt for
disenfecting or bleaching-which in some cases if required we propose to do.
T1211001
THOS. H. REES.
WM. P. BLACKHAM.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Blue or Bleaching Materials
for Washing Purposes.
We THOMAS HENRY REES of 32 Craven Street Charing Cross Merchant and
WILLIAM PHILLIPS BLACKHAM of 32 Craven Street Charing Cross both in
London and in the County of Middlesex trading as Rees & Company 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 :—
Blue or other bleaching materials used in washing clothes or linen or for laundry
purposes are usually made in solid cakes cubes or cylinders, and in the process of
manufacture these solid cakes-cubes or cylinders take a long time to dry and to
become hard enough for trade sale-and then when they are required for use they
take an inconveniently long time to disolve. Now in order to remedy these two
difficulties the one connected with the process of manufacture and the other
affecting the utility of the blue or bleaching material for washing purposes
we propose to make the cakes-cubes or cylinders of blue or bleaching materials

page_text: with hollow centers—or with a hole of any suitable size diameter or shape through
the center.
By this improved method a nearly double surface is presented for drying, con-
sisting of the outer surface formed by the hollow cavity or hole through the center,
and cakes cubes or cylinders thus made will dry and harden in about half the time
that they do if made solid-thus rendering the process of manufacturing much
more expeditious.
In actual use the double surface is again presented to the action of the water
and is softened or disolved in about half the time that solid cakes-cubes or
cylinders would be therefore much time is saved both in the manufacture and
in the use or application of blue or bleaching materials made in the improved
hollow way.
We do also further propose to fill up the cavity in the center, or to make
cartridges to fit into and fill up the said central cavity, of antisceptic or disenfecting
materials of any of the known kinds, by preference we choose a mixture of alum
and permanganate of potash with muriate of soda or ground alum saturated with
carbolic acid or oil of eucalyptus may be used. We do not confine ourselves to the
materials nor do we claim for them-but for the method or form in which the
same are made and combined.
Having described our improvements and method of manufacturing laundry blue
and bleaching materials-we now state-that what we claim as our invention, is
The method of making such materials in hollow cakes, cubes or cylinders,
instead of making them solid and also for the insertion of antisceptic or disenfecting
materials in the hollow or cavity so that it may disolve with the blue or bleaching
material—the whole substantially as herein described.
T
1000
THOMAS HENRY REES.
W. P. BLACKHAM.