Year: 1886

page_text: I, FREDERICK MONTAGUE EDWARD PIZEY, of No. 28, Amott Road, East
Dulwich, in the county of Surrey, Schoolmaster, do hereby declare the nature of
this invention to be as follows:-
My invention relates to an improved construction of part of a metal box, and of
the lid or cover thereof, in such a way that, when they are in combination, they
form an air-tight joint.
I propose to sink up the neck of the box, or neck and top in one, so as to form a
cone or cones, or parallel or tapered rims, with a screw or other suitable con-
trivance on one of the rims, or on the outside of the box, or on the neck; and to
form a lid or cover with a corresponding screw, or other suitable contrivance, and
cone or cones or parallel or tapered rims, so that when the lid or cover is screwed
or forced on the neck or top or on the outside of the box, an air-tight joint is
formed by the concs or rims.
I also propose to make projections on, or recesses in, the lid or cover, so that
when it is required to screw or unscrew the same from the box, all that is
necessary is to take any convenient article within reach, and put between
projections or recesses, and thereby screw or unscrew it.
31
GALL
1 1000

page_text: Improvements in Metallic Boxes or Cans for Holding Alimentary
and other Substances.
✓
I, FREDERICK MONTAGU EDWARD PIZEY, of No. 28 Amott Road, East
Dulwich, in the County of Surrey, Schoolmaster, 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 :—
My invention relates to an improved construction of part of a metal box, and of
the lid or cover thereof, in such a way that, when they are in combination they
form an air-tight joint.
I propose to draw up the neck of the box, or neck and top, or neck and body in
one, so as to form one or more parallel or tapered rims, and to form a screw, or
series of screws, or parts of screws, on one of the rims or on the outside of the box,
or on the neck; and to form a lid or cover with a corresponding screw, or series of
screws, or parts of screws, and one or more parallel or tapered rims. I also propose
to have projections or recesses on the cover for the reception of any suitable article
to be used as a lever for the purpose of screwing or unscrewing the cover; or a
band may be fixed over the cover for the same purpose; or a milled edge may be
made on the outside of the cover to enable the cover to be screwed and unscrewed
more easily. By screwing the cover on the neck or top I obtain a secure air-tight
joint on the parallel or tapered rim or rims.
A slight modification of this method is to have a series of studs on the box and
a corresponding series of slots on the cover. These slots communicate directly
with segments of female screws. By placing the slots on the studs and screwing
the cover in the grooves, a secure joint is made on the parallel or tapered rim or
rims. The studs may be on the cover and the slots and segments of screws on
the box.
To shew how my invention may be carried into effect, I furnish drawings,
premising however that I do not limit my invention to these forms. In these
drawings similar letters represent corresponding parts.
Fig. 1 is a view of the box with the cover on. A represents the slots in the
cover for the application of a lever to assist in screwing or unscrewing. Instead
of slots I may use projections, or a band over the cover; or I may use a milled
edge for the purpose of screwing and unscrewing.
. Fig. 2 represents a section of box C and cover B separate. In this case the cover
has a projection fitting into a recess in the neck of the box, the outer edges of
projection and recess having a screw, and the inner edges being tapered.
Fig. 3 is a section of box and cover in which the projection and recess are
turned in the opposite direction to that shown in Fig. 2. In this case the inner
edge is tapering, and the cover screwed over the box. In this form the box can
be made in one piece.
Fig. 4 is a section of the box C and cover B. In this case the screw is straight
and apart from the conical projection and recess.

page_text: Fig. 5 is a section similar to Fig. 4 but with the projection and recess turned in
the opposite direction.
Fig. 6 is the section of a form similar to Fig. 2, but with the outer surfaces of
the projection and recess tapering, and the inner screwed.
Fig. 7 is a view of the slot and stud arrangement, in which the slot E is placed
over the stud, and the stud screwed along the groove F.
Fig. 8 is a section of box C and cover B in which the cylindrical rims a on cover
and bon box are parallel.
Fig. 9 is a section of box C and cover B in which only flat rims e and fare
employed in conjunction with screws.
A is the recess for convenience of screwing and unscrewing the cover.
B is the cover.
C is the box.
D is the stud.
E is the slot for receiving the stud.
F is the segment of screw.
G is the projection on box or cover.
H is the recess on box or cover.
a is the cylindrical rim on cover whether parallel or tapered.
b is the flat rim on cover.
c is the screw on cover.
d is the screw on box.
e is the cylindrical rim on box corresponding to a on cover.
fis the flat rim on box corresponding to b on cover.
Having now particularly described and ascertained the nature of my said
nvention, and in what manner the saine is to be performed, I declare that what
I claim is,
1st. In a metallic box and cover a method for fastening consisting of a straight
or taper screw or series of screws, or parts of screws, or a series of studs and
segments of screws on box and cover combined with one or more parallel or tapered
im or rims.
2nd. In a metallic box and cover as above described a method for screwing and
inscrewing by applying a lever to recesses or projections in the cover or by
applying the lever beneath and across a band passing over the cover and fastened
o the cover at the ends of a diameter of the said cover.
D
W. H. MUNNS,
Agent for the Applicant.