Year: 1899

page_text: пирrоvащения шпу увце.
I, JAMES BURTINSHAW, of Lever Street Tin Works, Manchester, in the County
of Lancaster, Tinplate Worker, do hereby declare the nature of this invention
to be as follows:-
--
This invention relates to the construction of the bottom of the can and is
designed to strengthen it and make a stronger and more durable can that others
at present in use.
It consists essentially in constructing the bottom of the can with a flange
turned outwards and upwards to form a groove or channel to receive and secure
the edge of the body and binder and again turned inwards and upwards to
strengthen the bottom edge and to form a groove or channel to receive and secure
the inner strip or ring.
In carrying out the invention the body and binder are constructed with straight
edges at the bottom.
The bottom is formed of sheet metal of suitable thickness and at the periphery
has a flange turned downwards at right angles which is then turned forwards
and upwards forming an annular groove or channel around the exterior of the
can into which the bottom edges of the can hody and binder are inserted.
From this flange and exterior groove the metal of the stamping is turned
backwards under the bottom rim or edge to form an interior groove to receive.
and hold a strengthening ring or strip.
This construction forms a double thickness under the bottom rim or edge where
additional strength is needed without increasing the thickness of the material
and without employing a thick or heavy material for the bottom of which the
rim forms a part.
The inner and outer grooves thus formed are about 1 to %, the depth of the
bottom rim to permit of the dipping in solder or other molten metal or composition
without coming into contact with the bottom. The metal percalates from the
top of the grooves around the edges of the bottom body binder and ring and the
whole are strongly soldered together. Rivets may also be used if desired.
The clamping strip forming the grooves may also be made separate or detached
from the bottom and the bottom made to rest thereon.
By this construction less weight and greater strength in the bottom part of the
can is obtained and the cost of production is reduced.
Dated this 6th day of January 1899.

page_text: Improvements in Sliver Cans.
I, JAMES BURTINSHAW, of Lever Street Tin Works, Manchester, in the County
of Lancaster, Tinplate 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 the construction of the bottom of a sliver or coiler
can and is designed to strengthen it and make a stronger and more durable can
than others at present in use.
It consists essentially in constructing the bottom of the can with a flange
turned outwards and upwards to form a groove or channel to receive and secure
the edge of the body and binder and again turned inwards and upwards to
strengthen the bottom edge and to form a groove or channel to receive and secure
the inner strip or ring.
The invention will be fully described with reference to the accompanying
drawings.
Fig. 1. Elevation of can partly in section.
Fig. 2. Section of part of bottom of can showing the shape the sheet takes
when stamped.
Fig. 3. Elevation of can bottom partly in section showing the strengthening
ring in position.
Fig. 4. Section showing a modification.
Fig. 5. Section of another modification.
The bottom A is stamped in one piece out of a disc of sheet tinned steel of a
Buitable thickness. At the edge or periphery a cylindrical part or flange a
is formed over which the body B and binder C are placed. The cylindrical
part a is turned forwards and upwards forming an annular groove or channel D
around the exterior of the can. Into this groove or channel the bottom edges
of the can body B and binder C which are straight are inserted.
From this flange and exterior groove D the edge of the metal of the stamping
is turned backwards under the bottom rim or edge to form an interior groove E
to receive and hold a strengthening ring or strip F.
This construction forma a double thickness under the bottom rim or edge where
additional strength is needed without increasing the thickness of the material
and without employing a thick or heavy material for the bottom of which the
rim forms a part.
The inner and outer grooves D & E thus formed are about ½ to %, the depth
of the bottom rim to permit of the dipping in solder or other molten metal
or composition without coming into contact with the underside of the bottom.
The metal percolates from the top of the grooves around the edges of the
bottom A hody B binder C and ring F and the whole are strongly soldered
together. Rivets may also be used if desired.
The bottom A is first stamped and the ring F secured in position therein
as shown in Fig. 3 before the body A and binder Care applied, and in this
form can be supplied separately to can makers or others to be applied to the
manufacture of cans.
In a modification a clamping strip of similar or equivalent shape without the
horizontal part of the bottom may be formed separately as shown in Fig. 4
and the can body B the binder ring C and the strengthening ring F be applied
thereto a separated bottom being soldered or otherwise secured in the can on
top of the ring F. Or such a bottom may be stamped with flanges to take the
place of the strengthening ring F as shown in Fig. 5.

page_text: Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is:
1. A sliver can constructed with a bottom stamped from sheet steel or metal
with an external groove to receive the bottom edges of the body and binder ring
and an internal groove to receive the strengthening ring substantially as described.
2. A sliver can bottom stamped out of one piece of sheet steel with exterior
groove to receive the edges of the body and binder ring and an interior groove
in combination with a strengthening ring placed therein substantially as described.
3. A sliver can bottom constructed substantially as described and shown in
either of the figs. of the drawings.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, & London, Patent Agents.