A New or improved manufacture of Capsules or Coverings for Bottles and other Receptacles, and of Flexible Tubes, Wrappers or Envelopes, and other Articles Composed of what is known as 66 Betts'" "Metal.
Year: 1886

page_text: A New or improved manufacture of Capsules or Coverings
for Bottles and other Receptacles, and of Flexible Tubes,
Wrappers or Envelopes, and other Articles Composed of
what is known as 66 Betts'"
"Metal.
I CHARLES EDWARD HENRY CHESWRIGHT of 12 St. Georges Road Tufnell Park
in the County of Middlesex Secretary to Betts and Company Limited do hereby
declare the nature of this invention to be as follows:-
This Invention has for its object a new or improved manufacture of capsules or
coverings for bottles and other receptacles, flexible tubes such for example as are
used for containing pigments and perfumed essences, also wrappers or envelopes
and other articles composed of what is known as "Betts metal" whereby
considerable economy in the cost of material is ensured without affecting the
durability and general appearance of the article.
Hitherto in the above class of articles manufactured from "Betts' metal" the
lead composing one of the elements of the said metal has been covered or plated
with equal thicknesses of pure tin or alloys thereof on both sides or surfaces, the
thickness of the said covering or plating being such as to ensure sufficient
durability to withstand the wear and tear to which the outer or exposed part of
the capsule or other article is subjected, and also to effectually protect any coloring
matter when applied thereto for ornamentation or other purposes, from the action
of the lead. Now as the inner surfaces of such articles are not exposed to the
same amount of wear and tear as the outer surfaces and as the application of
coloring matter thereto is seldom or never required it follows that the thickness of
the coating or plating of tin or its alloys on the inner surface may be reduced to
the thinnest film without deterioration of the manufactured article whilst the
saving in the Tin is considerable.
In producing my said improved capsules, tubes, wrappers or other articles of
"Betts' metal" I first take a plate or slab of lead of any required thickness and
(by preference) upon the upper surface thereof I place a plate or slab of pure Tin
or alloy thereof and a second plate or slab of the same metal or alloy underneath

page_text: the lead the second slab being thinner than the top one in proportion to the desired
relative thicknesses of the outer and inner platings of tin or alloy on the finished
article and I then reduce the pile by repeated rollings to a sheet of the desired
strength or thickness from which capsules, wrappers and such like articles
are to be produced in any well known manner. In cutting out from the said
sheet the discs from which capsules for example are to be manufactured, the
sheets should by preference be so placed under the punch as that the thicker
plated surface shall be next the punch the slight burr produced by the punch
round the edges of the discs by the act of cutting serving as a guide to the
attendant for the depositing of the said discs in the proper position in the capsule
making machine, it being requisite that the thinner plated side be next the
shaping plungers. When producing flexible tubes of the improved manufacture
by the aid of a plunger from compound blocks made up as above described the
thicker plate or slab of tin should be on the underside of the block or farthest from
the plunger so that as the compound metal is forced up the sides of the said
plunger, the thicker plating of tin will be on the outer surface of the tube.
Dash: 11
==
1000
A New or Improved Manufacture of Capsules or Coverings
for Bottles and other Receptacles, and of Flexible Tubes,
Wrappers or Envelopes, and other Articles Composed of
what is known as Betts' Metal.
I CHARLES EDWARD HENRY CHESWRIGHT of 12 St. Georges Road Tufnell Park 2
in the County of Middlesex Secretary to Betts and Company, Limited 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 a new or improved manufacture of metallic capsules or 3
coverings for bottles and other receptacles, flexible or collapsible tubes (such for
example as are used for containing pigments and perfumed essences) "Sprinkler
tops or perforated stoppers for scent bottles also wrappers or envelopes and other
articles capable of being produced from what is known as Betts' metal by the aid
of plungers and dies, or rolls, and has for its object the reduction of the cost of 3
such articles without detriment to their durability and general appearance.

page_text: Capsules for bottles also wrappers or envelopes hitherto produced from ordinary.
Betts metal by dies and pressure or by rolls as is well understood have had
coverings or platings of pure tin or alloys thereof of equal thickness on both their
inner and outer sides or surfaces the thickness of the said covering or plating being
such as to withstand the wear and tear to which the outer or exposed surface only
of the finished article is subjected and at the same time to effectually protect from
the action of the lead in the "Betts' metal" any coloring matter applied to such
outer surface for ornamentation or other purposes; but as the inner surfaces of
such articles are exposed to little or no wear and tear and as the application of
coloring matter thereto is seldom or never required the thickness of the covering
or plating on the inner surfaces was greatly in excess of what was necessary.
Now with a view to effecting a saving in the tin employed and thus to reduce
the cost of these articles I produce them with coverings or platings of tin or alloys
thereof of unequal thicknesses on the inner and outer surfaces respectively the
plating on the inner surface being only the thinnest film sufficient to protect the
lead from oxidation whilst that on the exposed or outer surface of the finished.
article may be of the usual thickness or sufficient to stand the wear and tear
to which it alone is subjected and (when colored) to protect the pigment or
coloring matter applied thereto from the action of the lead. Collapsible tubes
sprinkler tops" and the like when produced by the aid of dies and pressure from -
discs or blocks of homogeneous metal (such as pure tin for example) are found to
be costly owing to the amount of tin consumed in their production-Now I effect.
a censiderable saving in tin in the manufacture of these articles also, and reduce
their cost by shaping or drawing them from Betts' metal so that the finished article.
shall have a plating of tin or its alloys on one or both of its surfaces.
#
In carrying out my said invention I first form a compound block or pile by
placing a plate or slab of lead of any required thickness upon the upper surface of
a plate or slab of pure tin or alloy thereof, I then place a second plate or slab of,
tin or alloy thereof upon the upper surface of the lead slab, one of the two slabs
of tin or its alloy being thinner than the other in proportion to the desired relative
thicknesses of the outer and inner platings on the finished article produced from
such compound block or pile.
"
"
"
Having thus formed a compound block or pile I reduce the same by repeated
rollings to a sheet or plate of any desired thickness from which by the aid of
punches I cut out pieces or discs of convenient size for being formed into capsules,
flexible or collapsible tubes, " 'sprinkler tops and the like by the action of
plungers and dies as is well understood. The sheet or plate of Betts' metal
obtained as above described should by preference be presented with its thicker
plated surface next to the cutting punch. The slight burr produced by the punch
round the edge of the disc in the act of cutting serves as a guide to the attendant
to enable him to deposit the said discs in their proper position in the capsule
making machine or in the die usually employed for making collapsible tubes or
'sprinkler tops' as the case may be it being requisite when a capsule of my
improved manufacture is to be produced that the thinner plated side of the disc be
placed next to the usual shaping plunger of the capsule making machine. When
collapsible tubes and "sprinkler tops" of my improved manufacture are to be
produced I take a disc or cylindrical block of compound or "Betts' Metal" that is
to say a disc or block having layers or platings of tin or its alloy on the upper and
under sides thereof respectively or on one side only and I place the same in
the hollow bottom die or matrix ordinarily employed in conjunction with a plunger,
or with a top die and plunger (according as a collapsible tube or a "sprinkler top
is required) taking care that the thinner layer or plating of tin (where two different
thicknesses are employed) shall be on the upper. side of the said disc or block or
that next the plunger or the top die and plunger, so that the collapsible tube or
the "sprinkler top
as the case may be produced by pressure from the said disc
or block of Betts' metal shall have the thinner plating of tin or alloys thereof on
"

page_text: its inner surface. Where the block has only one side plated with tin it should be
placed with the tin farthest from the plunger or top die.
In producing wrappers or envelopes of my improved manufacture wherein a
saving in tin is effected the sheet or plate of compound or "Betts' metal". herein-
before referred to having a thinner layer or covering of tin or its alloys on one
side of the lead than on the other is subjected to repeated rollings. until it has been'
reduced to the thinness required for wrappers or envelopes the finished wrapper
presenting on the one side or surface a sufficiently thick plating of tin or, its alloys
to withstand wear and tear and to protect any coloring matter that may be applied
thereto from the action of the lead, whilst on the opposite side or surface it will
present only the thinnest film or plating of tin or its alloys sufficient to protect the
lead from oxidation. If found desirable the lead employed may be slightly
hardened by the addition of a little antimony or copper in order that it may be of
equal hardness with the coverings or platings of tin or alloys thereof and thereby
ensure the uniform drawing of the two metals under the action of the plungers
and dies or rolls as the case may be.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
Capsules, collapsible tubes, "sprinkler tops" wrappers and the like produced
from "Betts' metal" by dies and pressure or rolls having a comparatively thin
plating of tin or its alloys on their inner surface or which is not exposed to wear,
and a thicker plating of the same metal or its alloys on their outer or wearing
surface as and for the purpose specified.
"
Also collapsible tubes "sprinkler tops" and the like made from." Betts' metal
by dies and pressure having a covering or plating of tin or its alloys on the outer
or inner, or outer and inner surfaces thereof as specified.
1
1
1000