Improvements in the Loose Covers and Cutters of Hermetically Sealed Metallic Boxes or Cases.
Year: 1897

page_text: DI BUITIATION.
Improvements in the Loose Covers and Cutters of Hermetically
Sealed Metallic Boxes or Cases.
I, GEORGE HENRY WILLIAMSON, trading as Williamson and Sons, of Providence
Works, in the City of Worcester, Manufacturer, do hereby declare the nature of this
Invention to be as follows:-
My invention relates to the hermetically sealed cylindrical metallic boxes or cases
for containing articles of food, tobacco, cigarettes, snuff and paint and for other like
purposes which boxes or cases are provided with loose covers to which radial sliding
cutters are attached so that when the sliding cutters are brought into their acting
position and the loose covers are pressed on the tops of the boxes or cases the cutters
puncture the tops of the boxes or cases and by the rotation of the loose covers the
tops of the boxes or cases are cut out.
In each of the loose covers as ordinarily constructed there are two parallel slots
through and in which the edges of the radial sliding cutter pass and work, the said
slots being slightly open after the wings of the cutter are passed through them. The
object of my invention is to so construct the loose covers and cutters that the said
loose covers when in position on their boxes or cases are closed practically air-
tight.
In constructing a loose cover according to my invention I make a depression or
recess in the lid of a size and shape suitable for the cutter to slide in, the said
depression guiding the cutter in its sliding motion. I make one radial slot only in
the said cover and I form on the cutter to be used therewith a pair of parallel arms
or branches at the middle of its upperside which are passed through the said slot
from the inner side of the cover and being bent over the two opposite edges of the
slot constitute the attachment of the cutter, the slot being closed by the cutter
situated under the slot.
In another of my improvements I make on either side the slot a parallel depression
or groove in the underside of the loose cover and form projections or ribs on or turn
up the sides of the cutter so as to take and work in the said grooves. The said
turned up sides act as guides and preserve the parallel motion of the cutter.
Dated this Twenty-fifth day of February 1897.
W. T. WHITEMAN,
Agent for the Applicant.

page_text: Improvements in the Loose Covers and Cutters of Hermetically
Sealed Metallic Boxes or Cases.
I, GEORGE HENRY WILLIAMSON, trading as Williamson and Sons, of Providence
Works, in the City of Worcester, Manufacturer, 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 invention relates to the hermetically sealed cylindrical metallic boxes or cases
for containing articles of food, tobacco, cigarettes, snuff and paint and for other like
purposes, which boxes or cases are provided with loose covers to which radial sliding
cutters are attached so that when the sliding cutters are brought into their acting
position and the loose covers are pressed on the tops of the boxes or cases the cutters
puncture the tops of the boxes or cases and by the rotation of the loose covers the
tops of the boxes or cases are cut out.
In each of the loose covers as ordinarily constructed there are two parallel slots
through and in which the edges of the radial sliding cutter pass and work, the said
slots being slightly open after the wings of the cutter are passed through them. The
object of my invention is so to construct the loose covers and cutters that the said
loose covers when in position on their boxes or cases are closed practically air
tight.
In constructing a loose cover according to my invention I make a depression or
recess in the lid of a size and shape suitable for the cutter to slide in, the said
depression guiding the cutter in its sliding motion. I make one radial slot only in
the said cover and I form on the cutter to be used therewith a pair of parallel arms
or branches at the middle of its upper side which are passed through the said slot
from the inner side of the cover and being bent over the two opposite edges of the
slot constitute the attachment of the cutter, the slot being closed by the cutter
situated under the slot. .
In another of my improvements I make on either side the slot a parallel depression
or groove in the underside of the loose cover and form projections or ribs on or turn
up the sides of the cutter so as to take and work in the said grooves. The said
turned up sides act as guides and preserve the parallel motion of the cutter.
Figure 1 of the accompanying Drawing represents in plan of underside and Figure 2
in section a loose lid or cover and cutter made according to my invention for a
hermetically sealed cylindrical box or case, the cutter attached to the said loose lid or
cover being in its non-acting position; Figures 3 and 4 represent portions of the said.
loose lid or cover and cutter in plan of underside and section respectively the cutter
being in these Figures in its acting or drawn back position; Figure 5 represents a
portion of the loose lid or cover and cutter in plan of upperside and Figure 6
represents a cross section of the same on the line x, x Figure 5.
Figure 7 to 11 both inclusive represent a modification of my invention hereinafter
described.
The same letters of reference indicate the same parts in the several figures of the
Drawing.
I will first describe the arrangement of my invention represented in Figures 1 to 6
both inclusive.
The part, near one side of the loose lid or cover, to which the cutter is to be
attached is preferably raised so as to form a sunken part or recess a in the underside
of the loose lid or cover for the reception of the cutter b, the said sunken part or
recess a having a single slot a² made in it which is closed practically air tight and
dust proof on the attachment of the cutter b in the manner hereinafter described.

page_text: The cutter b is formed from a blank of thin sheet steel of a cruciform shape
having a turned down point or cutter proper 62 at its front end, the cross arms of the
said blank being bent back on the body of the cutter, in a manner similar to the
prongs of a paper fastener, so as to permit of their being passed through the single
slot a² of the sunken part a of the cover. The cross arins, marked 61, 61, are turned
down over the sides of the slot a² on to the upper surface of the part a of the loose
lid or cover as will be best understood by reference to Figures 5 and 6 and the cutter
is thereby securely attached to the cover so as to be capable of a sliding motion
the body of the cutter 6 closing the slot a² practically air tight and dust proof.
In the modification of my invention illustrated in Figures 7 to 11 both inclusive
the cutter b is made from a blank without crossing arins b', 6' shown in Figures 1 to 6
both inclusive the said cutter being attached to the loose lid or cover by a rivet like
connection c the stem of which passes through and is capable of working in the single
slot a² of the loose lid or cover.
Where thought necessary or desirable two of the rivet like connections c may be
employed instead of one only as shown.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed I declare that I claim
as my invention :-
The improvements in the loose covers and cutters of hermetically sealed metallic
boxes or cases hereinbefore described and illustrated in the accompanying Drawing,
the said improvements consisting essentially in making a recess or sunken part in the
underside of the loose lid or cover for receiving and guiding the cutter in its motion
on the lid and preserving the cutter in its proper or cutting position on the rotation
of the loose lid on its box or case for cutting out the hermetically sealed top of the
said box or case, the said recess having a single slot for receiving the cross arms of
the paper like fastener or rivet like attachment of the cutter substantially as described
and illustrated.
Dated the Twenty-ninth day of October 1897