Improvements in the Manufacture of Medicinal Capsules, and in Means and Appliances for Effecting the same.
Year: 1891

page_text: The decision of the Comptroller-General, of the 2nd day of June 1893, allowed,
under Section 18 of the Patents, &c. Act, 1883, an Amendment of this
Specification.
Date of Application, 20th June, 1891
Complete Specification Left, 19th Apr., 1892-Accepted, 4th June, 1892
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Medicinal Capsules, and in
Means and Appliances for Effecting the same.
I, WILLIAM OPPENHEIMER of 1 and 3 Sun Street, Finsbury, London E.C.
Merchant, do hereby declare the nature of my said invention to be as follows :-
My invention relates to the manufacture of the medicinal capsules described in
the Specification No. 13,221, dated August 23rd 1890; and the object of my
present invention is to effect improvements in the manufacture of such capsules,
and in charging the same with exact quantities of medicine.
As described in the said recited Specification, the outer casing of the capsules
consists of two shallow spherical segments, united together, such casing being
formed of solvent materials such as gelatine, gum, or any other suitable substance
(hereinafter referred to as gelatine) to which flavoring may be added for imparting
an agreeable taste to the mouth on their passage to the throat.
The drugs are enclosed in this casing, completely isolated from the air, so as to
prevent their therapeutic value being affected by atmospheric influence.
'
In carrying out my invention, 1 take a sheet of perfectly flat glass, metal or
other suitable material (hereinafter called a plate") and lay upon the same a
thin sheet of gelatine. I then form a raised outer edge of metal, wood, or other
suitable material, round three sides of the sheet of gelatine; and, resting on these
raised portions, I place another plate. This forms a narrow trough with an open
top. The trough so prepared is then placed in a clamping press, and the two
plates are pressed towards each other in perfectly parallel lines. It is then ready
to receive the medicine which is poured into the trough, between the sheet of
gelatine on the one side, and the uncovered plate on the other. When filling with
powdered medicine, the trough is shaken, while being filled, in order to cause the
medicine to be evenly distributed. The uncovered plate is then removed from the
layer of medicine, and a thin sheet of gelatine is laid evenly upon the medicine,
which is thus enclosed between two sheets of gelatine.
The preparation is then removed from the remaining plate and placed between
two metal matrix plates, having a number of matrixes formed in each plate, in
exactly corresponding positions to form the two sides of the finished capsules.
Raised cutting edges are formed round each pair of matrixes, whereby the
capsules, with the enclosed medicine, are separated from the remainder of the
material, by means of pressure; . a suitable press being used for the purpose.
When the capsules are charged with liquid medicine, one sheet of gelatine is
laid flatly upon a suitable surface: the raised edge is formed all round: the
medicine is then poured upon the same, and the second sheet of gelatine is applied
thereto. The further process being effected as hereinbefore described.
Dated 20th June 1891
GEO. DOWNING,
8, Quality Court, London, W.C., Agent for Applicant.

page_text: COMPLETE SPECIFICATION (AMENDED).
Improvements in the Manufacture of Medicinal Capsules, and in
Means and Appliances for Effecting the same.
I, WILLIAM OPPENHEIMER, late of 1 and 3 Sun Street, Finsbury, London E.C.,
but now of 14 Worship Street, London E.C., Merchant, do hereby declare the
nature of my said 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 manufacture of the medicinal capsules described in
the Specification No. 13,221, dated August 23rd 22nd 1890, and the object of my
present invention is to effect improvements in the manufacture of such capsules,
and in charging the same with exact quantities of medicine.
As described in the said recited Specification, the outer casing of the capsules
consists of two shallow spherical segments, united together, such casing being
formed of solvent materials such as gelatine, gum, or any other suitable substance
(hereinafter referred to as gelatine) to which flavoring may be added for
imparting an agreeable taste to the mouth on their passage to the throat.
The drugs are enclosed in this casing, completely isolated from the air, so as to
prevent their therapeutic value being affected by atmospheric influence.
In carrying out my invention, I take a perfectly flat plate of convenient
dimensions. This plate may be made of glass, metal, or other suitable
material. Upon this plate lay a thin sheet of gelatine. I then form
a raised outer edge of metal, wood, or other suitable material, round three
sides of the sheet of gelatine; and, resting upon these raised portions, I
place another plate of the same material as the first mentioned plate. This
combination forms a narrow trough with an open top. The trough so prepared is
then placed in a clamping press, and the two plates are pressed towards each other,
in perfectly parallel lines. The trough is then ready to receive the medicine,
which is poured into it; between the sheet of gelatine on the one side and the
uncovered plate on the other. When filling with powdered medicine, the trough is
shaken, while being filled, in order to cause the medicine to be evenly distributed.
The uncovered plate is then removed from the layer of medicine, and a thin sheet
of gelatine is laid evenly upon the medicine, which is thus enclosed between two
sheets of gelatine.
The preparation is then removed from the remaining plate, and placed between
two metal matrix plates, having a number of matrices formed in each plate, in
exactly corresponding positions to form the two sides of the finished capsules
the bottoms of which said matrixes are formed so as to give the required shape to the said
shallow spherical segments. Raised cutting edges are formed round each pair of
matrices, whereby the capsules, with the enclosed medicine, are separated from the
remainder of the material, by means of pressure; a suitable press, of ordinary
construction, being used for the purpose.
When the capsules are intended to be charged with liquid medicine, one sheet of
gelatine is laid Hatly upon a suitable surface: the raised edge is formed all round:
the medicine is then poured upon the same, and the second sheet of gelatine is
applied thereto. The further process being effected as herein before described.
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 process of manufacture of medicinal capsules, herein before described
that is to say, the combination of 2 plates and a sheet of gelatine, the plates being
clamped in positions parallel with each other by means of an interposed distance
frame, for gauging and securing the accurate distribution of the medicine in the

page_text: capsules the imposition of a second sheet of gelatine and the cutting and finishing
of the capsules in the matrices, substantially as herein before described.
2. The apparatus to be used in the process of manufacture of medicinal capsules
herein before described, for gauging the amount and securing the accurate
disposition of medicine in the capsules consisting of a pressure frame and two
plates with an interposed distance frame substantially as herein before described.
3. The apparatus to be used in the manufacture of medicinal capsules-herein
before described for cutting and finishing the medicinal-enpsules-consisting of the
combination of two-metal-plates, having any suitable-number-of-matrices formed
therein, in exactly corresponding positions, to form the two-sides of the finished
eapsules; raised entting edges being formed at the eireumference of each pair of
matrices, substantially as herein before described.
43. The improvements in the manufacture of medicinal capsules, and in means
and appliances for effecting the same, substantially as hereinbefore described.
*110na
GEO. DOWNING,
8, Quality Court, London, W.C., Agent.
GEO.
DOWNING,
8, Quality Court, London, W.C., Agent.