Improvements in the Manufacture of Puff Pans and other Analogous Articles.
Year: 1890

page_text: Date of Application, 7th Oct., 1890
Complete Specification Left, 7th July, 1891-Accepted, 8th Aug., 1891
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Puff Pans and other Analogous
Articles.
I, MORTON WEST PONDER, of 45 Bethnal Green Road, London, E., Tin and
Japan Ware Manufacturer, do hereby declare the nature of my said invention to
be as follows:-
The object of my invention is to effect improvements in the manufacture of puff
pans.
In carrying out my invention, I form the pans, of any required shape, in the
usual manner.
I then raise the rims to a cylindrical form and position, by passing
them through steel dies. The holes in the plate, for the insertion of the pans, are
formed with raised cylindrical rings round the same.
When the pans are pressed into position in the holes, I roll the projecting edges
one over the other, which operation forms a scroll joint, or (if flattened) what is
known in the trade as "double seamed ' or a "knocked up joint."
Dated 7th October 1890.
"
GEO.
DOWNING,
8, Quality Court, London, W.C., Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Puff Pans and other Analogous
Articles.
I, MORTON WEST PONDER, of 45 Bethnal Green Road, London E., Tin and
Japan Ware Manufacturer, do hereby declare the nature of my said invention and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
The object of my invention is to effect improvements in the manufacture of puff
pans, and other articles of a like nature, by substituting scroll joints for the
ordinary lap joints.
The rims of the
pans are raised to a cylindrical form and position, by passing them through steel
dies. Round the holes in the plate, for the reception of the pans, cylindrical rings
are formed, at right angles to the plate..
I form the pans of any required shape, in the usual manner.
When the pans have been pressed into position, in the holes, the cylindrical
projecting edges of the pan and plate, are rolled, one over the other, whereby a
perfectly secure scroll joint is formed. This scroll joint may be afterwards, (but
not necessarily) flattened, if required.
And in order that my said invention may be particularly described and
ascertained, reference is hereby made to the accompanying drawings, in which
similar letters of reference indicate corresponding parts; and in which drawings
four methods of carrying out my invention are shown in section.
a a are portions of the plates. bare the puff pans. cc are the cylindrical rims
of the pans, and d d are the rings formed round the holes in the plates.
In Fig. 1 the rim c is shown rather deeper than the ring d. Fig. 2 shows one of
my improved methods of forming the scroll joint; the ring d being entirely enclosed
in the rim c.
In Fig. 3 the ring d is shown rather deeper than the rim c, and Fig. 4 shows
another method of forming the scroll joint; the rim c being entirely enclosed in the
ring d

page_text: In Fig. 5 the rim c and the ring dare shown turned downwards, the rim e being
the deepest. Fig. 6 shows the method of forming the scroll joint, the ring & being
entirely enclosed in the rim c, underneath the plate.
In Fig. 7 the ring d is shown rather deeper than the rim c, and Fig. 8 shows the
method of forming the scroll joint, underneath, the plate; the ring d entirely
enclosing the rim c.
The coils of the scroll joint may be increased in number beyond those shown in
the drawings, and the scroll joints may be used in the manufacture of many other
articles of tin-ware, and may, if desired, be pressed or otherwise flattened.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In the manufacture of puff pans and other analogous articles, the application
and use of scroll joints, substantially as hereinbefore described and illustrated by
Figs. 1 and 2 of the drawings.
2. In the manufacture of puff pans and other analogous articles, the application
and use of scroll joints, substantially as herein before described and illustrated by
Figs. 3 and 4 of the drawings.
3. In the manufacture of puff pans and other analogous articles, the application
and use of scroll joints, substantially as hereinbefore described and illustrated by
Figs. 5 and 6 of the drawings.
4. In the manufacture of puff pans and other analogous articles, the application
and use of scroll joints, substantially as hereinbefore described and illustrated by
Figs. 7 and 8 of the drawings.
5. The application and use of scroll joints, substantially as and for the purposes
hereinbefore described.
Dated On Tl. 1001
GEO.
DOWNING,
8, Quality Court, London, W.C., Agent.