Improvements in Vaccine Carriers and Cases therefor.
Year: 1899

page_text: Date of Application, 6th Sept., 1899-Accepted, 7th Oct., 1899
Improvements in Vaccine Carriers and Cases therefor.
A communication from RALPH WALSH, Medical Doctor, of Washington, District
of Columbia, United States of America.
1, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of London,
Chartered Patent Agent, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:.
This invention has relation to carriers for glycerinized vaccine lymph and
cases therefor, the object being to protect as far as possible the lymph from
absorption and from the injurious effects of the atmosphere, and in so doing to
provide for the loaded or charged point of the carrier a simple and effective case
or protecting shell, and one which is adapted for use with individual vaccine
carriers.
Under this invention the case or shell for the vaccine carrier is composed of
a strip of paraffine-coated pliable material which is doubled or folded on itself-
paraffine face inward-and has between its meeting faces a pocket to receive
the vaccine charged point of the carrier which is sealed into said pocket, the
paraffine coat thus becoming the lining of the shell. Such a case or shell, while
it may be used to contain more than one carrier and for that purpose may be
provided with more than one pocket, is particularly adapted to be used in connec-
tion with a single carrier, and it is for that purpose that it has been more
especially designed.
In lieu of paraffine, stearine or wax or other suitable material may be used
which is non-absorbent and non-destructive of glycerinized vaccine lymph, and
it is desired to be understood as including any such modification in the claim.
To enable others skilled in the art to make and use this invention the best way
now known of carrying the same into effect, will now be described with reference
to the accompanying drawings.
In these drawings:
Figure 1 is a perspective view and Figure 2 is a longitudinal section on
line 2-2, Fig. 1, of the completed article.
-
Figures 3-6 inclusive are views illustrative of the material and tools em-
ployed in, and the various stages of the manufacture of the case or shell.
The shell or case is formed from a strip of paper or other pliable material
having an adherent coat of paraffine of the proper thickness.
as indicated in
It is preferred to use for this purpose a large sheet of paper a
Figures 3, 3, which is ruled off by lines into subdivisions each of which is of
the size of the strip required. Upon this sheet is poured or spread melted
paraffine in quantity to form when it solidifies an adherent coat or layer 6 of
the proper thickness.
The prepared sheet is then cut up along the lines indicated into separate strips
of the desired dimensions.
The next step is to double each strip on itself, paraffine side innermost, and

page_text: to join its meeting faces except where the pocket is to be formed for subsequent
reception of the vaccine charged point of the carrier. This is conveniently done
by placing the strips upon a metal surface or plate heated to such an extent as
to properly soften the paraffine, and then to pick up each strip by a tool c such
as shown in Figure 4, the point cl of which is the shape required for the pocket.
The point of the tool is pressed lightly into the softened paraffine coat about
midway between the ends of the strip, and is then raised, carrying with it the
strip which by hand is doubled upon itself and pressed together around and from
opposite sides of the point c of the tool as seen in Figure 5. This tool is in
effect a former or core which when thus loaded is placed in a mold das in
Figure 6, the hinged top of which mold is then brought down upon the folded
strip, so as to press its meeting faces closely together and in intimate union
around the former or core c¹. The side edges of the case or shell which (as shown
in Figure 6") may protrude beyond the mold are trimmed off, the shell is taken
from the mold and the former c is withdrawn from the shell, leaving it in the
condition shown in Figure 7, with a molded pocket p ready to receive the charged
point of the ivory carrier A (Figs. 1 and 2). The ivory point after being charged
with glycerinized vaccine lymph is inserted into the pocket in the shell far
enough to take hold of the shell and the latter held by the carrier A is then
dipped for an instant into melted paraffine far enough to seal the joint between
the mouth of the pocket in the shell and the carrier, and the article is then
thrown at once into ice water in order to cool and solidify the paraffine. This
completes the article, and in this completed condition it is shown in Figures 1
and 2, in which figures B is the doubled or folded external strip of paper or
pliable material, C is the inner coat of paraffine or equivalent material, A is the
ivory carrier having its vaccine charged point contained in the pocket formed
between the meeting faces of the inner paraffine coat, and s is the seal at the
mouth of the pocket formed by dipping the shell into paraffine as last above
.described.
This shell is easily, quickly and cheaply made, is strong and effective for the
purpose for which it is designed, and admits of the carrier A being removed
from it readily and without injury to the vaccine charge.
Having now particularly described and ascertained the nature of the said
invention as communicated to me by my foreign correspondent and in what
manner the same is to be performed I declare that what I claim is;
A vaccine carrier case or shell composed of a strip of pliable material coated
with paraffine, doubled or folded on itself, paraffine face inside, and having its
meeting paraffine faces united except where the pocket is left, into which pocket
is sealed the vaccine charged point of an individual carrier, as hereinbefore set
forth.
Dated this 6th day of September 1899.
BOULT, WADE, & KILBURN,
Agents for the Applicant.