IMPROVEMENTS IN THE MANU- FACTURE OF METAL BOXES, CASES, on RECEPTACLES FOR HOLDING EDIBLE AND OTHER SUBSTANCES, AND IN APPARATUS EMPLOYED IN SUCH MANUFACTURE, ALSO IN THE METHOD OF FASTENING OR SECURING THE LIDS OR COVERS OF METAL BOXES, CASES, OR RECEPTACLES
Year: 1876

page_text: LETTERS PATENT to Reginald Braunfeld, of the Temple, in the City of
London, Barrister-at-Law, for the Invention of "IMPROVEMENTS IN THE MANU-
FACTURE OF METAL BOXES, CASES, on RECEPTACLES FOR HOLDING EDIBLE
AND OTHER SUBSTANCES, AND IN APPARATUS EMPLOYED IN SUCH MANUFACTURE,
ALSO IN THE METHOD OF FASTENING OR SECURING THE LIDS OR COVERS OF
METAL BOXES, CASES, OR RECEPTACLES."
Scaled the 30th September 1876, and dated the 20th May 1876.
PROVISIONAL SPECIFICATION left by the said Reginald Braunfeld at the
Office of the Commissioners of Patents on the 20th May 1876.
REGINALD BRAUNFELD, of the Temple, in the City of London, Barrister-at-Law.
"IMPROVEMENTS IN THE MANUFACTURE OF METAL BOXES, CASES, OR RECEPTACLES
FOR HOLDING EDIBLE AND OTHER SUBSTANCES, AND IN APPARATUS EMPLOYED IN
SUCH MANUFACTURE, ALSO IN THE METHOD OF FASTENING OR SECURING THE LIDS
OR COVERS OF METAL BOXES, CASES, OR RECEPTACLES."
The object of this Invention is the improved manufacture of metal boxes, cases,
canisters, or receptacles, especially those made of tin, tinplate, or latten, and used for
holding eatables and other substances, and the improved method of fastening or
securing the covers or lids thereto, such method being also applicable to other metal
boxes, cases, and the like.
The apparatus consists of a framework on which is a platform or table with an
opening or aperture of the size required for the box to be made, and over this open-
ing or aperture a sheet or blank of metal to be made into a box is laid. The core
mandril or form of the box is placed on this sheet of metal, and such sheet and
core are then depressed by pressure applied from above, or they may be drawn
downwards by means of a spring or other contrivance from below, acting on a
moveable block, between which and the core the blank or sheet of metal is placed;
either action causing the blank to receive the shape of three sides of the core. The
upstanding parts, which are to form the fourth sido, are then bent down and turned
one over the other, either by hand or by mechanical means, and then soldered.
The blank or sheet for the bottom plate may be placed in another opening or slot
in the platform or table at the same time as the blank to form the body, and it is
Or the
driven forward to the body on which it fits and is then soldered thereto.
body may be removed from the core and the bottom fixed on in the usual manner.
[Price Gdl

page_text: The soldered box body with its core mandril or form is ejected from the opening
or aperture by means of a spring, or it may be struck upwards from beneath.
For securely fastening and hermetically closing and attaching the lids or covers
to metal boxes, cases, canisters, and other like receptacles, I employ a strip or
band of tin or lead foil or leaf, or any other soft metallic foil or leaf, and I wind,
wrap, or encircle such strip around the rim of the lid or cover and around the box
or case, and as soon as the ends meet each other or overlap each other, a soldering
iron or rod is run over them and also along the top and bottoin edges of the strip
or band, thereby fusing and welding them together securely. Or they may be
secured by ordinary solder if desired. By this method a rigid and hermetical
closure is obtained and the use of the ordinary opening tool or instrument is entirely
dispensed with, as by my method the box or other receptacle can be immediately
opened by cutting the foil or leaf with a pin, penknife, fork, or even with the finger
nail. By leaving the foil or leaf uncut on one side, it will act as a hinge for the lid
or cover.
Where the lid or cover of the box, case, or receptacle has no rim, the cover or lid
must be made slightly larger, according to the mouth of such box or receptacle to
which it is to be fitted and the strip or band of the leaf or foil would have to be
applied horizontally where the cover or lid does not extend over the mouth of the
box, and in cases where the cover or lid extends over the mouth of the box, the lenf
or foil would have to be applied partly vertically, and partly horizontally, thus
making a right angle.
"
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said Reginald Braunfeld in the Great Seal Patent Office on the 15th November
1876.
REGINALD BRAUNFELD, of the Temple, in the City of London, Barrister-at-Law.
IMPROVEMENTS IN THE MANUFACTURE OF METAL BOXES, CASES, OR RECEPTACLES
FOR HOLDING EDIBLE AND OTHER SUBSTANCES, AND IN APPARATUS EMPLOYED IN
SUCH MANUFACTURE, ALSO IN THE METHOD OF FASTENING OR SECURING THE LIDS
OR COVERS OF METAL BOXES, CASES, OR RECEPTACLES."
The object of this Invention is the improved manufacture of metal boxes, cases,
canisters, or receptacles, especially those made of tin, tinplate, or latten, and used
for holding eatables and other substances, and the improved method of fastening or
securing the covers or lids thereto, such method being also applicable to other
metal boxes, cases, and the like.
The apparatus consists of a framework on which is a platform or table with an
opening or aperture of the size required for the box to be made, and over this
opening or aperture a sheet or blank of metal to be made into a box is laid. The
core mandril or form of the box is placed on this sheet of metal, and such sheet
and core are then depressed by pressure applied from above, or they may be drawn
downwards by means of a spring or other contrivance from below acting on a
moveable block, between which and the core the blank or sheet of metal is placed,
either action causing the blank to receive the shape of three sides of the core.
The
upstanding parts which are to form the fourth side are then bent down and turned
one over the other either by hand or by mechanical means, and then soldered. The
blank or slicet for the botton plate may be placed in another opening or slot in the
platform or table at the same time as the blank to form the body, and it is driven
forward to the body which it fits, and is then soldered thereto. Or the body may
be detached from the core and the bottom fixed on in the usual manner.
soldered and finished box body with its core mandril or form is ejected from the
opening or aperture by means of a spring, or it may be struck upwards from
beneath.
The

page_text: For securely fastening and hornetically closing and attaching the lids or covers
to metal boxes, cases, canisters, and other like receptacles, I employ a strip or band
of tin or lead foil or leaf, or any other soft metallic foil or leaf, and I wind, wrap,
or encircle such strip around the rim of the lid or cover, and around the box or
case, and as soon as the ends meet or overlap each other a soldering iron or rod is
run over them, and also along the top and bottom edges of the strip or band, thereby
fusing and welding them together securely. Or they may be secured by ordinary
solder if desired. By this method a rigid and hermetical closure is obtained, and
the use of the ordinary opening tool or instrument is entirely dispensed with, as by
my method the box or other receptable can be immediately opened by cutting the
foil or leaf with a pin, penknife, fork, or even with the finger nail, or by tearing off
the band or strip. By leaving the foil or leaf uncut on one side it will act as a
hinge for the lid or cover.
Where the lid or cover of the box, case, or receptacle has no rim the cover or lid
must be made slightly larger according to the mouth of such box or receptacle to
which it is to be fixed, and the strip or band of the leaf or foil would have to be
applied horizontally where the cover or lid does not extend over the mouth of the
box, and in cases where the cover or lid extends over the mouth of the box the leaf or
foil would have to be applied partly vertically and partly horizontally, thus making
a right angle.
1 now proceed with reference to the accompanying Drawings to describe more
particularly the mode of carrying the Invention into practical effect.
Figure 1 is a vertical section, and Figure 2 a plan of the apparatus I employ in
manufacturing metal boxes, cases, or other like receptacles.
A is a framework, on which is a mould B*, provided with an opening B of the size
required for the box to be made, and over this opening a sheet or blank of metal to
be formed into a box is laid, and it rests on a platform or support a secured to the
sides of the mould. C is the mandril core or form of the box which is placed over
the sheet of metal, and by depressing which it and the slicct of metal are made to
enter into the opening B in the mould B*, and then the upstanding sides or parts b*
which are to form the fourth side of the box care bent down and turned one over
the other, either by hand or by mechanical means, and then soldered. When the
upstanding sides have been turned over a block or cap D is placed over them and
forced down thereon, thus causing the fourth or remaining side of the receptacle to
assume the proper shape corresponding with its opposite side. The cap is then
removed and the side soldered.
The core or inandril may be depressed by a weight or other contrivance from
above, or it may be drawn downwards from the side by means of a spring from
below acting on a moveable block, between which and the core the metal sheet or
blank is placed.
The blank or sheet to form the bottom of the box may be placed in another
opening or slot contrived in the apparatus at the same time as the blank to form
the body, and it is driven on to the body which it fits, and it is then withdrawn
and soldered thereto. Or the body of the box may be detached from the core and
the bottom fixed on in the ordinary manner. G is an opening or aperture through
which the box body, with its core, is ejected by hand or by means of a spring.
For securely fastening and hermetically closing and attaching the lids or covers
to metallic boxes, cases, canisters, and other like receptacles I employ strips or
bands of tin or lead foil or leaf, or any other soft metallic foil or leaf, or strip, or
band, and I pass or wind it around the junction of the box and lid, or cover, and
secure it thereto by running a soldering iron along the top and bottom edges of
the strip or band and at the part where they meet and overlap each other. I thus
obtain a rigid and hermetical closure without in any way injuring the appearance
of the box or receptacle, and which cannot be opened by any ordinary force applied
internally or externally. The fastening or closure inay be further strengthened, if
desired, by increasing the thickness of the metallic foil, band, or strip. The opening

page_text: of the receptacle for the removal of its contents is effected in the easiest possible
manner, as will be explained herein-after.
Figure 3 is a perspective view of a cylindrical box H, which has a lid or cover I
formed with a rim b to fit over the mouth of the box. J is a strip or band of tin,
lead, or other foil or leaf of soft metal, which is passed around the rim of the cover
and body of the box. This strip is not shown closed or soldered in the Figure, the
piece depending from it being left to show the manner in which it is applied.
Figure 4 is a perspective view of the same, showing the fuil cut and the box
open.
Figure 5 shows another way of securing the cover to the box. Hero the mouth K
is of smaller dimensions than the diameter of the box H, and it is made in the
top piece or plate forming the top of the box. The covor I is slightly larger than
the mouth, and J is the band or strip of foil for securing the cover or lid to the
box body.
Figures 6 and 7 show the method applied to rectangular boxes. Figure 7 is
fastened in manner similar to Figure 3, and Figure 6 is fastened by applying the
leaf or foil J partly on the cover and partly on the body of the box in such manner
that it forms a right angle.
When it is desired to open the box all that has to be done is to cut the strip
or band of foil in the middle with a pin, fork, penknife, or even with the finger
nail, or it may be torn off, and as the foil is thin and soft it is quickly accomplished,
thus dispensing with the opening tool or instrument generally employed for
opening boxes of this description, and obviating all trouble and risks of injuring
the hand. The foil being cut the lid or cover is free to be raised. By leaving a
portion of the foil uncut it will serve as a hinge for the lid to work on. This is
seen in the dotted horizontal line e in Figure 4.
This method of hermetically securing the lids is applicable to all metallic boxes
or cases at present in use, and can be easily applied without altering them.
Having now described the nature of the said Invention, and in what manner the
same may be performed, I declare that I claim,-
First. The manufacture of metal boxes, cases, or receptacles for holding edible
and other substances by the apparatus herein-before described and shewn in the
Drawings.
Second. The use or employment of bands or strips of tin or lead foil, or leaf, or
other metallic foil or leaf, strip or band capable of being easily cut or torn, and
which is placed over or upon the junction or meeting edges of the lid and box, the
foil also serving for herinetically closing and securely listening the lids or covers on
metallic boxes, cases, canisters, cans, and other similar recej tacles, as described and
for the purpose set forth.
In witness whereof, I, the said Reginald Braunfeld, have hereunto set my hand
and seal, this Fourteenth day of October, in the year of our Lord One
thousand eight hundred and seventy-six.
R. BRAUNFELD. (L.S.)