Tobacco, Snuff, and Paint, and for other like Purposes.
Year: 1886

page_text: Date of Application, 18th Oct., 1886.
Complete Left, 22nd June, 1887.
Complete Accepted, 12th Aug., 1887.
Tobacco, Snuff, and Paint, and for other like Purposes.
I WILLIAM BLIZZARD WILLIAMSON of the firm of W. B. Williamson and Sons of
Providence Works in the City of Worcester Manufacturers do hereby declare the
nature of this Invention to be as follows:-
My improvements have for their object the production of cases or boxes for storing
articles of food and for other like purposes having covers which fit with such
accuracy as to effectually exclude water and air but which can be readily removed and
replaced.
In making a box or case according to my invention I make the top or open mouth
of the box or case of a slightly conical figure and I also make the lid or cover of a
conical figure. In the body of the box or case immediately below the conical open
mouth I form a screw thread and I also form a corresponding screw thread
immediately below the conical part of the said cover.
When the cover is screwed upon the open top of the case the conical part of the
said cover is pressed tightly upon the conical top of the body of the box or case and
an air and watertight closing of the box or case is effected.
In place of the screw threads described a fastening resembling a bayonet joint
fastening may be employed for fixing the lid in its place and pressing the conical
parts of the box and lid together. In this case I prefer to employ two or more of the
said fastenings situated equidistantly apart. The side of the slot against which the
pin of the fastening bears is so inclined as to draw the cover tightly on the body and
thereby to press the conical parts of the body and cover closely together.
Where the box or case has a contracted mouth or opening the conical surfaces
described are made in the contracted mouth and the cover fitting on the contracted
mouth. In this case the conical surface of the lid may either fit within or without the
conical surface of the mouth. The construction described of the contracted mouth
and cover may be applied to boxes or cases cylindrical or square or of other figure.
Where the box or case is of a figure other than cylindrical the cover may have the
same figure as the box or case but as in this case the cover cannot be fixed in its place
by a screw like motion I fix it by means of a spring snap fastening applied preferably
at two opposite points. The cover is pressed down so as to bring its inclined part to
bear tightly on the inclined top of the box or case when the spring snap comes into
action and secures the lid in its place.

page_text: Where the forcing down of the lid is effected by a screwing action the spring snap
fastening may be employed to prevent the unscrewing of the lid.
Where it is considered desirable to do so the junction of the lid with the body may
be made additionally tight by the use of an india rubber ring or packing between the
two conical surfaces by placing an india rubber ring or strip of parchment paper or
the like over the junction of the lid with the box or case and the hermetic sealing of
the box or case may be effected by the application of a solution of shellac in spirit
over the india rubber or other band.
Where it is desirable that the ring of india rubber should be flush with the body of
the box or case a recess is made for its reception.
My improvements are applicable to boxes or cases inade either of metal or of non
metallic substances.
Dated this Eighteenth day of October 1886.
W. T. WHITEMAN,
Agent for the Applicant.
Tobacco, Snuff, and Paint, and for other like Purposes.
I WILLIAM BLIZARD WILLIAMSON of the firm of W. B. Williamson and Sons of
Providence Works in the City of Worcester Manufacturers do hereby declare the
nature of my Invention and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement :-
My improvements have for their object the production of cases or boxes for storing
articles of food and for other like purposes having covers which fit with such
accuracy as to effectually exclude water and air but which can be readily removed and
replaced.
In making a box or case according to my invention I make the top or open mouth
of the box or case of a slightly conical figure and I also make the lid or cover of a
conical figure. In the body of the box or case immediately below the conical open
mouth I form a screw thread and I also form a corresponding screw thread
immediately below the conical part of the said cover.
When the cover is screwed upon the open top of the case the conical part of the
said cover is pressed tightly upon the conical top of the body of the box or case and
an air and water tight closing of the box or case is effected.
In place of the screw threads described a fastening resembling a bayonet joint
fastening may be employed for fixing the lid in its place and pressing the conical parts
of the box and lid together. In this case I prefer to employ two or more of the said
fastenings situated equidistantly apart. The side of the slot against which the pin of
the fastening bears is so inclined as to draw the cover tightly on the body and thereby
to press the conical parts of the body and cover closely together.
Where the box or case has a contracted mouth or opening the conical surfaces

page_text: described are made in the contracted mouth, the cover fitting on the contracted mouth.
In this case the conical surfaces of the lid may either fit within or without the conical
surface of the mouth. The construction described of the contracted mouth and cover
may be applied to boxes or cases cylindrical or square or of other figure.
Where the forcing down of the lid is effected by a screwing action a spring snap
fastening may be employed to prevent the unscrewing of the lid.
Where it is considered desirable to do so the junction of the lid with the body may
be made additionally tight by the use of an india rubber ring or packing between the
two conical surfaces or by placing an india rubber ring or strip of parchment paper or
the like over the junction of the lid with the box or case and the hermetic sealing of
the box or case may be effected by the application of a solution of shellac in spirit
over the india rubber or other band.
Where it is desirable that the ring of india rubber should be flush with the body of
the box or case a recess is made for its reception.
My improvements are applicable to boxes or cases made either of metal or of non-
metallic substances.
Figure 1 represents in elevation and plan; Figure 2 also in elevation and Figure 3
partly in elevation and partly in vertical section, a metallic box or case the open top
or mouth and lid or cover of which are constructed according to my invention the
open top or mouth and lid being represented in combination with a spring snap
fastening for preventing the accidental unscrewing of the lid or cover. In Figures 1
and 3 the lid or cover is represented screwed home upon the top of the box or case
and in Figure 2 the lid or cover is represented in the act of being screwed upon the
top of the box or case.
a is the cylindrical body of the box or case the top or mouth of which has a
slightly conical figure and below the conical mouth is a screw thread c.
The conical
open top or mouth b and screw thread c are represented as made from a ring or rim
separate from and attached to the top of the body a but the said conical top or mouth
and screw b, c may be made in one piece with the cylindrical body a; d is the conical
cover or lid having a screw thread e below the conical part, the said screw thread e of
the cover being of a size and figure proper to engage with the screw thread c on the
body a.
By screwing the cover d upon the open top or mouth 6 the conical part of the
cover is pressed tightly upon the conical top or mouth of the body and an air and
water tight closing of the box or case is effected.
I make the conical part of the top of the body a and the conical lid d of the
inclinations best seen in Figure 3, that is, the conical part of the lid d is more inclined
than the part of the conical mouth or top of the body so that the whole of the
conical part of the lid d, when the latter is screwed home, does not fit closely upon
the conical mouth or top b. The result of this arrangement is that when the lid is
screwed home the flat top of the lid hears tightly on the top edge of the conical
mouth 6 the upper part of the conical lid at the same time bearing upon and com-
pressing the top of the conical mouth. There is thus as it were a double closing of
the mouth of the box or case, namely, a closing at the top edge of the mouth and a
second closing at the conical side of the mouth and a very secure air and water tight
closing of the box or case is thereby produced.
fis the spring arm of the spring snap fastening fixed to the side of the body a
and g is a recess cut in the screwed part e of the lid for the spring arm f to snap into
to fasten the lid in its place as illustrated in Figure 1. Before screwing the lid d
upon the mouth of the box or case the spring arm fis lifted outwards as seen in
Figure 3 and the screw thread e of the lid is then engaged with the screw thread c on
the mouth of the body, the said parts now occupying the positions represented in
Figure 2. When the lid d has been screwed home the slot in it comes opposite the
spring arm and the latter snaps into the said slot and prevents the accidental
unscrewing of the lid.
The conical screwed cover and conical screwed mouth of the body of the box or
case may be used without the spring snap fastening represented.

page_text: Figure 4 represents in side elevation and Figure 5 in plan a box or case having a
square body a² the top or mouth of the said square body and the lid or cover of the
same being constructed in the manner herein before described with respect to a box or
case having a cylindrical body.
Figure 6 represents in side elevation; Figure 7 partly in elevation and partly in
section and Figure 8 in plan a metallic box or case provided with a conical mouth or
top and conical lid or cover as before described but the fastening of the lid or cover
is effected by a bayonet joint fastening of the kind represented instead of a screwing
arrangement; Figure 9 represents a plan of the body with the lid removed.
bis the conical mouth or top of the body a and
is the conical lid or cover. In
the plain part of the rim below the conical part three equi distant pins or
studs h, h, either hollow or solid are made or fixed and in the plain part of the
cover d below the conical part loops or hollow guides iii are made for passing over
the pins or studs h h h on the body. The said loops or guides i ii open into inclined
slots one of which is shown in Figure 6 and marked k. In fastening the lid or cover d
to the mouth of the box or case the said lid is depressed on to the mouth so that the
conical parts near their tops are not quite in contact. In placing the lid on the mouth
of the box the loops or guides i ii on the lid d pass over the studs h, h, h on the body
and the lid is then slightly turned upon the body. By this motion the inclined slots k
in the lid travel upon the fixed pins or studs h, h, h and draw the lid tightly down on
the body and thereby press the conical parts of the body and cover closely together
in the manner herein before described.
The conical part of the lid or cover may be made by depressing inwards the flat top
of the lid so as to make a conical internal shoulder as represented in Figure 10, the
conical internal shoulder of the lid d being marked d². When the lid d is pressed
home upon the conical top or mouth of the body a the internal conical shoulder d
of the said lid acting against the conical mouth 6 of the body slightly expands the
said conical mouth thereby pressing the tops of the conical parts of the body and
cover tightly together as represented in the drawing and producing the double closing
herein before described.
Having now particularly described and ascertained the nature of my invention
and the manner in which the same is to be performed I declare that I claim as
my invention of "Improvements in boxes or cases for storing articles of food, tobacco,
snuff and paint and for other like purposes."
First Making the mouth or top of the body of the box or case slightly conical
and the lid or cover also slightly conical so that when the cover is screwed or forced
home a secure air and water tight closing shall be produced by the combined pressure
of the top or flat part of the cover on the top edge of the mouth and the contraction
or expansion of the conical mouth by the conical part of the cover substantially as
herein before described and illustrated in the accompanying Drawings.
Secondly The combination with the conical top or mouth and conical lid or cover
of screw threads for fixing the lid or cover to the body as hereinbefore described and
illustrated in Figures 1, 2, 3, 4 and 5 of the accompanying Drawings.
Thirdly The combination with the conical top or mouth of the box or case and
conical lid or cover of the arrangement of parts represented in Figures 6, 7, 8 and 9
of the accompanying Drawings for fixing the lid or cover to the body.
Fourthly Preventing the accidental unscrewing of the lid or cover by a spring
snap fastening of the kind herein before described and illustrated in Figures 1, 2
and 3 of the accompanying Drawings.
Dated this Seventeenth day of June 1887.
WILLIAM BLIZARD WILLIAMSON.