Improvements in Metallic Boxes or Cases for Storing Articles of Food, Tobacco, Snuff, and Paint and for other like purposes.
Year: 1899

page_text: Date of Application, 28th July, 1899
Complete Specification Left, 24th Apr., 1900-Accepted, 23rd-June, 1900
Improvements in Metallic Boxes or Cases for Storing Articles of
Food, Tobacco, Snuff, and Paint and for other like purposes.
We, GEORGE HENRY WILLIAMSON, Managing Director of G. H. Williamson
and Sons Limited, of Providence Works, in the City of Worcester, Manufacturers,
and ARTHUR CULPIN, of No. 1, Sidbury, in the City of Worcester, Mechanical
Engineer, do hereby declare the nature of this invention to be as follows:-
Our invention consists of the improvements hereinafter described in metallic
boxes or cases for storing articles of food, tobacco, snuff and paint and for other
like purposes and relates principally to metallic boxes or cases provided with a
loose lid or cover in addition to a hermetically sealed tagger tin top, the said
loose cover being provided with a cutter by which the tagger tin top may be cut
out by the rotation of the loose cover and thereby removed when it is desired
to obtain access to the contents of the box or case.
In order that our invention may be the better understood we remark that
when cutters of the ordinary kind are employed there remains on the removal
of the tagger tin top, a slight burr or rough edge of tagger tin on the inside
of the opened top of the box or case; and the object of our invention is so to
make the cutter that when by turning the loose cover in either direction for
cutting out the tagger top the said cutter, as it proceeds, immediately turns
down the rough edge left by the cutting operation and forms the said rough edge
into a smooth hollow bead.
In carrying our invention into effect we form in the middle of the turned
down V shaped cutter proper a convex corrugation or rib the said corrugation
or rib being bevelled at its lower end into the point of the cutter. When a
loose cover provided with a cutter of the kind described is pressed and turned
in one or other direction for cutting out the tagger tin top of the box or case,
the advancing edge of the cuiter effects the cutting of the tagger top and the
middle convex corrugation or rib following the advancing edge, acting on the
inwardly projecting edge of the tagger tin left on the top of the box or case.
closes the said projecting edge of tagger tin down on the inner side of the box or
case and thereby leaves a smooth or beaded edge on the opened box or case."
We make in the rim of the loose cover when a sliding cutter is employed a
recess for the reception of the middle rib or corrugation of the cutter when the
cutter is in its non-acting position.
Our invention is applicable to rotary, sliding and fixed cutters.
W. T. WHITEMAN,
Agent for the Applicants.

page_text: Improvements in Metallic Boxes or Cases for Storing Articles of
Food, Tobacco, Snuff, and Paint and for other like purposes.
We, GEORGE HENRY WILLIAMSON, Managing Director of G. H. Williamson
and Sons Limited, of Providence Works, in the City of Worcester, Manufacturers,
and ARTHUR CULPIN, of No. 1, Sidbury, in the City of Worcester, Mechanical
Engineer, do hereby declare the nature of our invention and in what manner the
same is to be performed to be particularly described and ascertained in and by
the following statement:
-
Our invention has reference to metallic boxes or cases for storing articles of
food, tobacco, snuff and paint and for other like purposes of the kinds described
represented and claimed in the specifications of the following Letters Patent:-
W. B. and G. H. Williamson No. 11378 of 1886. W. B. and G. H. Williamson
No. 16614 of 1886 G. H. Williamson No. 5095 of 1897 and A. Culpin No. 6891
of 1897 our invention consisting in the improvements hereinafter described in
the cutters of the said patented boxes or cases by which cutters the hermetically
sealed tagger tin tops of the boxes or cases are removed in the opening of the
boxes or cases.
In order that our invention may be the better understood we remark that
with the patented boxes herein before referred to there remains on the removal
of the tagger tin top an inwardly projecting flange or burr or rough edge of
tagger tin on the inside of the opened box or case which flange, burr or rough
edge of tagger tin constitutes an obstruction to the removal of the contents of
the boxes or cases especially in the case of boxes containing sensitized photo-
graphic paper, antiseptic bandages and the like. The object of our invention
is so to make the cutter that when by turning the loose cover in either direction
for cutting out the tagger top practically the whole of the said tagger top is
removed the edge of tagger tin feft by the cutting operation being turned down
or beaded on the top edge of the body of the box so as to leave the said box
without a flange and without a cutting edge.
In carrying our invention into effect we form in the middle of the turned
down shaped cutter proper a convex corrugation or rib the said corrugation
or rib being bevelled at its lower end into the point of the cutter. When a
loose cover provided with a cutter of the kind described is pressed and turned
in one or other direction for cutting out the tagger tin top of the box or case,
the advancing edge of the cutter effects the cutting of the tagger top and the
middle convex corrugation or rib following the advancing edge, acting on the
edge of the tagger tin left on the top of the box or case closes the said edge of
tagger tin down on the inner side of the box or case and thereby leaves a smooth
or beaded edge on the opened box' or case.
We make in the rim of the loose cover when a sliding cutter is employed a
recess for the reception of the middle rib or corrugation of the cutter when the
cutter is in its non-acting position.
In the accompanying drawing we have represented, double full size, the four
arrangements of our invention which we have found to answer best in practice.
Figure 1 represents in side elevation, Figure 2 in front elevation and Figure 3
in plan a sliding cutter for a loose lid or cover the said cutter being provided
with a slightly projecting vertical corrugation or rib a extending from the top

page_text: to near the bottom of the said turned down V shaped end 6 of the cutter where
the said rib passes into the bevilled point of the said cutter (see the front
elevation Figure 2). Figure 4 represents the said cutter applied to a loose lid
or cover the said cutter being in its acting or drawn back position a portion of the
said loose lid or cover and the cutter being in section. The loose lid or cover is
marked c. is a recess in the rim of the loose lid or cover for the reception of
the middle corrugation or rib a of the cutter when the said cutter is in its
non-acting position. Figure 5 is a section of a portion of the top of a hermetically
sealed box or case with which the loose lid or cover Figure 4 is used, the said box
or case being marked and the soldered tagger top being marked e.
Figure represents the loose lid pressed onto the top of the box or case d
for the cutting out of the tagger tin top e; and Figure 7 represents a portion of
the top of the box or case d after the removal of the tagger top e the said
Figure 7 showing the turning down or beading effect produced by the rib a of
the cutter on the cut edge of tagger tin left on the body of the box.
We think it-well to remark with reference to Figure 7 that being made double
full size and the thickness of the tagger tin plate being somewhat exaggerated for
the convenience of representation the contraction of the beaded mouth of the
box or case is greater in the said figure than in the opened box or case itself in
which the contraction is scarcely perceptible and constitutes no real obstruction
to the withdrawal of the contents of the box or case.
Figure 8 represents in side elevation, Figure 9 in front elevation and Figure 10
in plan a modified sliding cutter in which the projecting corrugation or rib a
at the middle of the turned down end or cutter proper is confined to that portion
of the turned down end adjacent to the point the upper portion of the V shaped
turned down end being plain excepting at the edges which are bevilled as
usual.
We wish it to be understood that we do not limit ourselves to the width of the
corrugation or rib a for example the said corrugation may extend from side to
side of the turned down V shaped end b as is represented in Figures 12, 13 and 14
the turned down end b having in this arrangement a slightly convex figure (sec
the plan Figure 13).
And instead of forming the rib a by pressure it may be formed by a piercing
and bending operation as is represented in side elevation in Figure 14, front
elevation in Figure 15, plan in Figure 16, and longitudinal section in Figure 17
where the rib a has the form of a pressed out tongue.
Although we have only représented our invention in connection with a sliding
cutter we wish it to be understood that it is equally applicable to cutters having
a rotary or angular motion as well as to hinged and fixed cutters attached to the
loose lids or covers of hermetically sealed boxes or cases.
By the use of cutters containing our improvements the whole or practically
the whole of the tagger top of the box or case is removed in the cutting out
operation and the edge of tagger tin left on the body of the box or case is
turned down into such close contact with the inside of the opened box or case
that the mouth of the opened box or case is practically without a flange or obstruc-
tion to the removal of the contents of the box or case (sec Figure 7).
Having now particularly described and ascertained the nature of our invention
and in what manner the same is to be performed we declare that we claim
as our invention: -
Making on the turned down ends of the cutters attached to the loose lids or
covers of hermetically sealed boxes or cases a corrugation or rib projecting from
the face of the turned down end or cutter proper at such a distance that the said
corrugation or rib effects on the cutting out of the soldered top of the box
or case the turning down or beading of the cut edge of tagger tin left on the
body of the box or case into close contact or practically into close contact with
the inside of the body of the box or case thereby leaving the open mouth of

page_text: the box or case practically without a flange or obstruction to the removal of the
contents of the box or case substantially as hereinbefore described and illustrated
in the accompanying drawing.
1
1
1
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1000
W. T. WHITEMAN,
Agent for the Applicants.