Improvements in the Means of Fastening Sheet Metal Lids on Round Sheet Metal Pudding Basins or Moulds, and on other Round Sheet Metal Receptacles.
Year: 1893

page_text: Date of Application, 28th June, 1893-Accepted, 12th Aug., 1893
COMPLETE SPECIFICATION.
Improvements in the Means of Fastening Sheet Metal Lids on
Round Sheet Metal Pudding Basins or Moulds, and on other
Round Sheet Metal Receptacles.
I, JOHN FARMER CHAPMAN, of 71 Wellington Street, Bilston in the County of
Stafford, Tinplate Worker and Japanner, 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:-
A flange is formed around the exterior of the basin or mould, or other sheet
metal receptacle, a short distance below the top edge thereof, and preferably out
of the solid metal of the basin or mould, or other sheet metal receptacle, by first
bulging out the metal to form such flange and then flattening the upper and lower
portions of the bulged part together. This flange may, however, be made separately
if desired and be subsequently attached to the body by soldering, riveting or
otherwise. The edge of the rim of the lid is curled outwards to form an exterior
bead, or is flanged outwards, and a couple of notches or slits are cut into or through
the bead or flange at opposite points in the circumference. When the lid is placed
upon the basin or mould, or other sheet metal receptacle, the beaded or flanged
edge rests upon the flange of the body. A pair of books are fixed to the body at
opposite points around the circumference, and their upper ends bend or pass over
the flange of the body leaving just sufficient space underneath them to allow of the
passage of the bead or flange of the lid. In passing the lid down upon the body it
is held in position so that the hooks will clear through the notches or slits, and
when the lid is down upon the flange of the body it is turned axially to pass the
bead or flange around its rim underneath the hooks, whereby such bead or flange is
held between the flange of the body and the hooks.
Figure 1 is a vertical section through the centre of a round pudding basin or
mould to which the lid is fastened in the manner of this invention. Figure 2 is a
plan of Figure 1; and Figure 3 is a side elevation of the upper portion of the
basin or mould with the lid fastened thereon, the view being taken at right angles
to the section shewn by Figure 1.
a is the flange formed around the basin or mould A out of the solid metal thereof
in the manner above described. is a bead formed around the outside of the
edge of the lid B. cc are notches or slits cut through the bead at opposite
points in the circumference. d d are hooks fixed to the basin or mould, and curve
over the upper side of the flange a. These hooks may be formed with or riveted to
plates e which are riveted to the basin or mould to fix the hooks securely thereto,
o the hooks may be otherwise attached to the basin or mould, such as by soldering.
In the illustrations, the lid is shewn to have been turned to bring the bead bunder
the hooks d d, the lid being thereby fastened.
It is not essential that the lid rest on the flange a as it may rest on the edge of
the basin or mould and still be fastened by passing the bead under the hooks.
Having now particularly described and ascertained the nature of my said inven-
tion and in what mannei the same is to be performed, I declare that what I
claim is :-
:-
1. The means of fastening a sheet metal lid on a round sheet metal pudding
basin or mould, or other round sheet metal receptacle, by the use of an outward
bead or projection around the aim of the lid in combination with hooks and notches
or slits, substantially as described.
2. The means of fastening a sheet metal lid on a round sheet metal pudding
basın or mould, or other round sheet metal receptacle, by the use of an outward

page_text: bead or projection around the rim of the lid and a flange around the basin or
mould, in combination with hooks and notches or slits, substantially as described.
Dated this 27th day of June 1893.
STEPHEN WATKINS,
Wolverhampton, Agent for the Applicant.