An Improved Method of Closing Canisters, Boxes, and the like Receptacles.
Year: 1894

page_text: PROVISIONAL SPECIFICATION
An Improved Method of Closing Canisters, Boxes, and the like
Receptacles.
I, THOMAS AUGUSTUS PRINCE, of 56, Vicarage Road, Tottenham, in the County
of Middlesex, Tin Plate Worker, do hereby declare the nature of this invention to
be as follows.
This invention relates to boxes canisters and the like of metal, wood, papier
maché and other materials and has for its object to render the covers of such
receptacles more perfectly airtight than those of the ordinary construction.
Now according to this invention I form the lid of the box or other receptacle
with a shaped channel or groove at or near the periphery thereof
This channel may be formed by bending the material of which the lid is composed
or if the lid is of wood or other substance which will not bend the groove or channel
may be formed by turning, planing or otherwise forming the groove in the solid
material or the groove may be formed when the lid is moulded if made of vulcanite
celluloid or substance capable of being moulded while in a plastic state.
The edge of the opening of the box if of metal or other thin material is turned
inwards or outwards and downwards so that the channel in the lid fits the box,
canister or other receptacle both inside and out in such a manner that a double
irtight joint is formed by the contact of the material without the aid of cork or
other jointing material.
If the receptacle is made of wood the groove in the lid fits the body of the box
or the like the edge being of sufficient thickness to fill the groove in the lid.
Dad COLL
100
H. C. FOWLER,
Agent for Applicant.
COMPLETE SPECIFICATION.
An Improved Method of Closing Canisters, Boxes, and the like
Receptacles.
I, THOMAS AUGUSTUS PRINCE, of 56, Vicarage Road, Tottenham, in the County
of Middlesex, Tin Plate Worker, 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:-
This invention relates to boxes, canisters and the like of metal, wood, papier-
maché or other materials, and has for its object to render such receptacles more
perfectly air-tight than those of the ordinary construction.
Now according to this invention I form the lid of the box, canister or other
receptacle with an approximately shaped channel or groove at or near the
periphery thereof
This channel may be formed by bending the material of which the lid is composed
or if the lid is of a substance which will not bend the groove or channel may be
formed by turning, planing, or otherwise cutting the groove in the solid material,
or the lid may be formed when the lid is moulded if made of vulcanite, celluloid or
other substance capable of being moulded while in a plastic state.

page_text: The edge of the opening of the receptacle if of sheet metal or other thin material
is turned inwards or outwards and downwards so that the channel in the lid fits
the box canister or other receptacle both inside and out in such a manner that a
double air-tight joint is formed (by the contact of the material) without the aid of
cork or other jointing material.
If the receptacle is made of wood the groove in the lid fits the body of the box
and the like the edge being of sufficient thickness to fill the groove in the lid.
And in order that my said invention may be fully understood I will proceed
to explain the same with reference to the accompanying sheets of drawings in
which
Fig. 1 represents a section of an ordinary tin canister constructed according to
this invention.
Fig. 2 represents section of a shouldered tin constructed according to this
invention.
Fig represents section of a wooden box such as is used for packing baking
powder also constructed according to this invention.
Fig. 4 represents also in section a wooden box with a metal lid or cover.
Fig. 5 shows a modified form of Fig. 4.
The same letters denote the same parts in all the figures.
is the box or canister of wood, metal, vulcanite, celluloid, or other suitable
material having the edge of the opening or mouth thereof turned over either inside
or outside parallel to the side of the receptacle as shown at a¹ (Figs. 1 and 2) if the
said receptacle is constructed of metal. is the lid thereof having a shaped or
approximately shaped groove or channel c therein the sides of which are adapted
to be in contact with the sides and turned over edge of the receptacle so as to make
a double air-tight joint the said lid being easily removed from the box or canister.
If the receptacle is made of wood as shown at Fig 3 the groove may be cut in
the solid material instead of bending or moulding the lid as shown at Figs. 1, 2,
4 & 5.
Fig 4 shows a wooden box with a metal lid Fig. 5 shows a groove cut in the
side of the receptacle and fitted with a metal lid.
The metal lids are formed from a dise of metal by pressing (in the ordinary way)
between dies The top of the canister shown at Fig. 2 is stamped (in the ordinary
way) from a flat ring of metal The edges of the canister as shown at Fig. 1 are
turned over by means of an ordinary flanging machine or contrivance and suitable
dies or by any other suitable means, the bodies in other respects being formed in
the ordinary way.
The bottoms of canisters and the like receptacles may be attached in the ordinary
way or may be formed and attached to the said receptacles in the same manner as
the covers 2. by means of a groove and turned over edges.
Although I have shown in the drawings the turned over edges of the receptacles
and the groove in the lids rectangular in shape yet I wish it to be fully understood
that the groove may be shaped or having rounded corners as herein before
specified and the edge of the receptacle formed to correspond therewith.
Having now particularly described and ascertamed 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. Forming the orifices of canisters, boxes, and the like receptacles with turned,
over edges substantially as described and for the purpose stated.
2. Forming the lids or covers of canisters, boxes, and the like receptacles with
shaped or approximately shaped grooves or channels therein substantially as
described and for the purpose stated
3. The modified forms of the receptacles shown at Figs. 3, 4 & 5 of the
accompanying drawings with lids or covers having shaped or approximately
shaped grooves or channels therein substantially as described and for the purpose
stated.

page_text: 4. The construction of boxes. canisters and the like receptacles substantially as
herein before specified.
Dated this 21st day of January, 1895.
H. C FOWLER,
11, Furnival Street, Holborn, London, E.C., Agent for the Applicant.