IMPROVEMENTS IN OR RELATING ΤΟ THE CLOSING OF CANISTERS OR RECEPTACLES FOR CORFER OR OTHER CHIDST NORS
Year: 1883

page_text: LETTERS PATENT to Adolph William Jaeger and Christian Arnold Farwig,
both of Gravel Lane, Southwark in the County of Surrey, Manufacturers for
an Invention of "IMPROVEMENTS IN OR RELATING ΤΟ THE CLOSING OF
CANISTERS OR RECEPTACLES FOR
CORFER OR
OTHER CHIDST NORS
"1
PROVISIONAL SPECIFICATION left by the said Adolph William Jaeger and
Christian Arnold Farwig at the Office of the Commissioners of Patents on
the 19th July 1883.
ADOLPH WILLIAM JAEGER and CHRISTIAN ARNOLD FARWIG both of Gravel
Lane, Southwark in the County of Surrey, Manufacturers "IMPROVEMENTS IN
OR RELATING TO THE CLOSING OF CANISTERS OR RECEPTACLES FOR COFFEE OR
OTHER SUBSTANCES
-The object of our invention is an economical method of making canisters or other
receptacles of tin, earthenware or other material with lids or covers by which they
can be hermetically closed. For this purpose we employ a flanged lid or cover and
we stamp or form a groove or annular recess around the inside of the top of the
same and in this groove or recess we fit a washer or ring of vulcanized india
rubber, cork or other suitable yielding material. On the inside of the flange we
make two or more projections and this when the lid is of metal we prefer to do
by simply making indents on the outside by a suitable tool. On the outside of
the mouth of the body of the receptacle we make two (or more according to the
number of the projections) inclined grooves each starting from the lower end of a
corresponding short vertical groove running down from the mouth edge. This
edge we turn inwards so that it shall not be liable to cut the india rubber in
the lid.
In order to close the receptacle the lid is applied so that the projections enter
and pass down the short vertical grooves; the lid is then turned partly round to
cause the projections to travel down the, inclined grooves the result of which is

page_text: that the lid is drawn forcibly down and the india rubber washer is compressed
against the mouth of the receptacle and hermetically closes it.
For receptacles the mouths of which are of square or other form upon which the
lids cannot be rotated we make inclined grooves on the inside of the receptacle
and we fit within the lid an oval or oblong piece which can be turned round by
means of a knob or finger piece outside. When the lid is applied to the receptacle
the turning round of this oval piece brings the ends of the same into the inclined
grooves so that the lid is drawn forcibly down upon the mouth of the receptacle as
in the arrangement first described an india rubber washer making the closing
hermetic. If the receptacle is long two or more of the oval pieces and a.corre-
sponding number of pairs of inclined grooves may be employed.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed -
by the said Adolph William Jaeger and Christian Arnold Farwig in the
Patent Office on the 19th January 1884.
"
ADOLPH WILLIAM JAEGER and CHRISTIAN ARNOLD FARWIG both of Gravel
Lane, Southwark in the County of Surrey Manufacturers IMPROVEMENTS IN
OR RELATING TO THE CLOSING OF CANISTERS OR RECEPTACLES FOR COFFEE OR
OTHER SUBSTANCES
"1
The object of our invention is an economical method of making canisters or
other receptacles of tin, earthenware or other material with lids or covers by
which they can be hermetically closed.
For this purpose we employ a flanged lid or cover such for example as that
shewn in Figures 1 and 2 of the annexed drawings, Figure 1 being a vertical
section and Figure 2 a view of the underside. a is the lid or cover and bits
flange. We stamp or form a groove or annular recess c around the inside of the
top of the same and in this groove or recess we fit a washer or ring d of vulcanized
india rubber, cork or other suitable yielding material. On the inside of the flange
we make two or more projections e e and this, when the lid is of metal, we prefer
to do by simply making indents on the outside by a suitable tool. On the outside
of the mouth of the body of the receptacle which may be such as that shewn in
Figure 3, we make two (or more' according to the number of the projections)
inclined grooves ff each starting from the lower end of a corresponding short
vertical groove g running down from the mouth edge. This edge we turn inwards
as shown so that it shall not be liable to cut the india rubber d in the lid.
In order to close the receptacle the lid a is applied so that the projections e e
enter and pass down the short vertical grooves g; the lid is then turned partly
round to cause the projections to travel down the inclined grooves f. f. the result
of which is that the lid is drawn forcibly down and the india rubber washer d is
compressed against the mouth of the receptacle and hermetically closes it.
If preferred the arrangement of the parts may be reversed that is to say, the
inclined grooves f. f and vertical grooves g may be formed inside the flange b of
the lid and the projections e e be on the body of the receptacle and the washer d
instead of being in the lid may be placed in a horizontal groove formed outside the
mouth of the receptacle the washer d projecting from the grooves sufficiently to
form a seat for the edge of the lid.
For receptacles the mouths of which are of square or other form upon which
the lids cannot be rotated we adopt the arrangement shown in Figures. 4, 5 and 6,
Figures 4 and 5 being respectively longitudinal and transverse sections of the
receptacle and lid and Figure 6 a plan of the lid. On reference to these figures it
will be seen that we make inclined grooves f. f. on the inside of the receptacle and
we fit within the lid an oval or oblong piece h which can be turned round by
means of a knob or finger piece i outside. When the lid is applied to the
receptacle the turning round of this oval piece h brings the ends of the same into
the inclined grooves ff so that the lid is drawn forcibly down upon the mouth of
the receptacle as in the arrangement first described, an india rubber washer d
making the closing hermetic; a washer k should also be interposed between the
top of the lid and the knob i. If the receptacle is long two or more of the oval
pieces h and a corresponding number of pairs of inclined grooves ƒ ƒ may be
employed..

page_text: Having-now described the nature of our said invention and in what manner the
same is to be performed We declare that we claim :-
The several modes or methods of constructing canisters or other receptacles
and their lids as herein before described with the view of enabling them to be
hermetically closed
In witness whereof we the said Adolph William Jaeger and Christian Arnold
Farwig have hereunto set our hands and seals thris nineteenth day of January One
thousand eight hundred and eighty four.