Improvements in the Manufacture of Soap Tablets and Apparatus for that Purpose.
Year: 1893

page_text: Date of Application, 2nd Mar., 1893
Complete Specification Left, 28th Nov., 1893-Accepted, 30th Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Soap Tablets and Apparatus
for that Purpose.
I, ROBERT HUGH FORSYTHE FINLAY of Willesden, Holywood, County Down,
Ireland do hereby declare the nature of this invention to be as follows:-
In manufacturing soap tablets, I first mould bars of soap in a machine resembling
that employed for moulding candles which may be mounted on trunnions so that it
can be inverted. Or I may employ longitudinally divided moulds, like those used
for casting inking rollers.
In the moulding process I may variegate the soap by introducing portions of
coloured soap or other objects.
In some cases I place cores in the moulds which are withdrawn when the soap is
set, soap of other colour being then introduced into the spaces left by the cores.
Instead of cores, tubes may be used with valves at their lower ends. These tubes
being charged with fluid soap, coloured as desired, can be introduced into the
moulds while their contents are still fluid, and, their valves being opened, can be
gradually withdrawn, allowing the coloured soap to mingle with that in the moulds,
variegating it. When the moulding apparatus is mounted on trunnions it may, on
the soap becoming partly set, be inverted sufficiently to run out such of the soap
as is still fluid, and soap of other colour or kind may then be poured into the
vacuities.
The columns of soap removed from the moulds are cut transversely by.
a knife or wire or several of these. Each column of soap is thus divided into a
number of tablets which, when cut by a knife or knives, present on each side a
smooth surface.
"
These tablets may afterwards be stamped in suitable dieś.
DL:
1000
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Soap Tablets and Apparatus.
for that Purpose.
I, ROBERT HUGH FORSYTHE FINLAY, of Willesden, Holywood, County Down,
Ireland, 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 :-
In manufacturing soap
tablets.I first mould bars of soap in a machine resembling
that employed for moulding candles which may be mounted on trunnions so that it
can be inverted.
Fig. 1 is an end view, Fig. 2 is a side view and Fig. 3 is a plan of a suitable
moulding machine. In Fig. 3 I have shewn the moulds as being in the one row
of circular, and in the other row of elliptical section.
They might however all be of either or of other desired section.
In the moulding process I may variegate the soap by introducing portions of
coloured soap
pap or other objects. In some cases, as shewn at A, I place cores in the
moulds which cores are withdrawn when the soap is set, soap of other colour being
then introduced into the spaces left by the cores. Instead of cores, tubes may be
used with valves at their lower ends as shewn at B. These tubes being charged

page_text: with fluid soap, coloured as desired; can be introduced into the moulds while their
contents are still fluid, and their valves being opened, can be gradually withdrawn,
allowing the coloured soap to mingle with that in the moulds, variegating it.
As shewn in the drawings, the tubes B of each row project down from a feeding
trough D situated above the trough C which serves for charging the moulds
themselves, and the valves which close the bottoms of the tubes B in each row
are all connected to a bar by which they can be simultaneously opened.
When the moulding apparatus is mounted on trunnions, as shewn in the drawings,
it may, on the soap becoming partly set, be inverted sufficiently to run out such
of the soap as is still fluid, and soap of other colour or kind may then he poured
into the vacuities. In order to allow for such inversion when the side frames are
low, a pit is formed in the floor, this being unnecessary when the side frames are
sufficiently high.
As shewn at E, variegation may be effected by first introducing into the mould
fragments of soap of various colours and then pouring in the fluid soap to fill up
their interstices.
The columns of soap removed from the moulds are cut transversely by a knife
or wire or several of these.
Fig. 4 is a section and Fig. 5 is a plan of cutting apparatus by which one of
the moulded bars of soap S, when laid upon a suitable support T, is severed by
the descent of a number of parallel knives K worked by handle H, the support
having cross cuts into which the knives descend. Each column of soap is thus
divided into a number of tablets which, when cut by a knife or knives, present on
each side a smooth surface.
These tablets may afterwards be stamped in suitable dies.
I have shewn in the drawings apparatus similar to that employed for moulding
candles, by which a number of soap bars are moulded simultaneously and when
they are solidified, are extruded by pistons moved by suitable racks and pinions.
Soap bars may, however, be cast in moulds which are longitudinally divided like
those employed for casting inking rollers..
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
-
1. The herein described method of manufacturing soap tablets by casting bars
of soap in suitable moulds, and cutting these bars transversely.
2. The herein described method of variegating the tablets above referred to, by
casting the bars with internal vacuities formed by cores or tubes or by discharge
of the central fluid portions, and filling the vacuities with soap of different colour.
3. The soap moulding apparatus substantially as herein described with reference
to Figs. 12 and 3.
Dated this 28th day of November 1893