Improvements in and in the Manufacture of Metal Boxes.
Year: 1896

page_text: Date of Application, 1st Sept., 1896-Accepted, 17th Oct., 1896
COMPLETE SPECIFICATION.
Improvements in and in the Manufacture of Metal Boxes.
1 GEORGE JOHN SAUNDERS, of 359 Hackney Road, London E., Tin Box
Manufacturer, 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 :-
This invention relates to certain improvements in and in the manufacture of
machine made metal boxes, usually manufactured from "tin plate" the object
being to impart. a superior finish to the "bottom" end of the box and to avoid
waste or fracture of the metal in the manufacture of such boxes.
In carrying the invention into practice the sheet metal is lapped round and the
Beam is formed at the side, the end is then made with a groove so that the dished
hottom plate is put in and will rest on the groove, then the edge of the box is
rolled over. So far the process is substantially as ordinaryily.
The box so made is now taken and placed upon a block under a pressing head,
said block being formed round or square sided according to the shape of box to be
produced that is cylindrical or otherwise.
The block works inside a collar situate so as to surround the end of the box
where same is grooved and where the inside block meets the inside of the box end.
The top die will now be operated to bring same down inside the collar and to press
ou the rolled edge and the end of the box above the inside block.
The inside block is shaped as required to secure the requisite finish to the
metal inside the end thereof and the end of the presser die is correspondingly
formed.
In the drawings
Fig. 1 is a side view and Fig. 2 a plan of a box end made according to this
invention. The end of the box instead of being left grooved is laid flat at a, Fig. 1,
and the rolled edge is folded down at b, Fig. 2. At is shown a recessed or
grooved finishing edge conforming to the shape or configuration of the inside-
block-end and the presser die.
Fig. 3, shows in section the operation of the inside block A, the collar B, and
the presser head C, working together for finishing the end of the box.
Fig. 4 represents in section the end of the inside block A, detached, the
particular configuration whereof at a¹ aud c¹ may be varied conlormally with the
grooving and flattening of the metal of the end of the box and of the form of
the presser die. The collar B with the block A serves to prevent the bulging and
fracture of the metal under the finishing treatment.
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 tin boxes the inside block A employed with the over-
head plunger or pressing head C, combined with the collar B, operating to finish
the end of the metal boxes substantially as and for the purposes herein set
forth.

page_text: 2nd. The improved machine made metal box having the head a, b, at the bottom
end thereof turned down and laid flat by pressure of the block and die as and for
the purpose herein set forth.
Dated this 1st day of September 1896.
HUGHES, ELI & HUGHES,
Agents for Applicant.