Improvements in the Manufacture of Tin Lids, Caps, Ferrules, or similar Articles.
Year: 1895

page_text: Date of Application, 6th Apr., 1895
Complete Specification Left, 2nd July, 1895-Accepted, 3rd Aug.,
1895
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Tin Lids, Caps, Ferrules, or
similar Articles.
We DAN RYLANDS LIMITED whose registered office is at Hope Glass
Works, Stairfoot, near Barnsley, in the County of York, Glass Bottle Manu-
facturers, etc., and WILLIAM JAMES PAINTER of 11 Victoria Street, Stairfoot
aforesaid, Tin Worker do hereby declare the nature of this invention to be as
follows:-
:-
Our present invention relates to machines for the pressing, stamping, punching,
or cutting of tin lids, caps, rings; ferrules, capsules, or similar articles, and has
particular reference to the punches and dies used in such machines.
Hitherto in manufacturing tin rings, ferrules, or caps which require the centre
punching out, it has been necessary to employ two separate operations which
required either separate machines for each operation or necessitated two distinct
operations if only one machine was used. The first operation was stamping or
forining the cap out of a sheet of tin, and the second operation was stamping or
cutting out the centre of the tin cap.
The object of our present invention is to combine these two operations and to
perform them by one motion of one machine. To accomplish this we make the
punch and die which forms or shapes the tin blank and cap, with an inner punch
and die for cutting out the centre of the cap. This inner punch is made movable
and is actuated by a suitable spring or other motion.
By one motion of our improved dies and punches (1) a circular disc or blank is
cut out of the tin sheet, (2) then a continuance of the same motion forms the disc
into a cap shape, and (3) cuts out the hole in the cap the size of the inner punch
and die, and (4) the spring or other motion given to the inner die facilitates the
automatic removal of the piece of tin punched or cut out of the centre of each cap.
The foregoing four actions are all performed during one continuous motion of the
dies and punches.
It will thus be seen that a great saving of time and labour is effected by our
improved dies and punches performing at one operation what has hitherto required
separate dies and punches and either two operations cr two machines. Our
improvements also save the labour and time expended in changing dies which bas
hitherto been necessary in single machines in which separate dies have been
requisite in order to accomplish at two operations that which our improved dies
and punches do at one operation.
Dated this 5th day of April 1805

page_text: Improvements in the Manufacture of Tin Lids, Caps, Ferrules, or
similar Articles.
We DAN RYLANDS LIMITED, whose registered office is at Hope Glass Works,
Stairfoot, near Barnsley, in the County of York, Glass Bottle Manufacturers, etc.,
and WILLIAM JAMES PAINTER of 11, Victoria Street, Stairfoot aforesaid, Tin
Worker 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 :-
Our present invention relates to machines for the pressing, stamping, punching
or cutting of tin lids, caps, rings ferrules, capsules, or similar articles, and has
particular reference to the punches and dies used in such machines.
Hitherto in manufacturing tin rings, ferrules, or caps which require the centre
punching out, it has been necessary to employ two separate operations which
required either separate machines for each operation, or necessitated two distinct
operations if only one machine was used. The first operation was stamping or
forming the cap out of a sheet of tin, and the second operation was stamping or
cutting out the centre of the tin cap.
The object of our present invention is to combine these two operations and to
perform them by one motion of one machine. To accomplish this we make the
punch and die which forms or shapes the tin blank and cap, with an inner punch
and die for cutting out the centre of the cap. This inner punch is made movable
and is actuated by a suitable spring or other motion.
By one motion of our improved dies and punches (1) a circular or other shaped
disc or blank is cut out of the tin sheet, (2) then a continuance of the same motion
forms the disc into a cap shape, and (3) cuts out the hole in the cap the size of the
inner punch and die, and (4) the spring or other motion given to the inner die
facilitates the automatic removal of the piece of tin punched or cut out of the
centre of each cap. The foregoing four actions are all performed during one
⚫ continuous motion of the dies and punches.
Our
It will thus be seen that a great saving of time and labour is effected by our
improved dies and punches performing at one operation what has hitherto required
separate dies and punches and either two operations or two machines.
improvements also save the labour and time expended in changing dies which has
hitherto been necessary in single machines in which separate dies have been
requisite in order to accomplish at two operations that which our improved dies
and punches do at one operation.
In order that our invention may be more clearly understood and more easily
put into practice we append drawings of which the following is a description
Fig. I is a view partly in section of our improved punch and die showing the
Dormal position of the various parts before commencing the operation of punching
or pressing.
Fig. 2 is a view partly in section of our improved punch and die showing the
position of the various parts at the point where the punching or pressing operation
is completed, and before the punch and die begins to recede to their normal
position.
Fig. 3 is a sectional view showing that portion of our improved punch and die
which presses or cuts out the centre of the tin cap Y, and indicates the position of
the tin cap Y immediately before the punch and die complete their closing move-
ment by which the centre of cap is cut out.
Fig. 4 is a side elevation in section of the tin cap Y, showing the shape of same
when the punch and die is in the position shown at Fig. 3.

page_text: Figs. 5 and 6 are respectively sectional side elevation and plan of the completed
metai cap or ferrule (with the hole in centre) as it leaves the punch and die.
Our improved punch and die can be attached to an ordinary pressing or punching
machine in the usual manner. We have therefore not shown a complete machine,.
but only sufficient of the working parts necessary to illustrate our invention.
The same letters of reference are used for similar parts throughout the
drawings.
Referring to Fig. 1, A is the outer punch which cuts out the tin blank and
forms the blank into the cap shape; B is the fixed outer die which receives the
outer punch A. The inner punch is surrounded by the coiled spring D, and the
larger spiral spring E rests on the annular ring H which surrounds the inner punch C.
The guide rods F F are for keeping the inner punch parallel; G is an air hole.
The inner die K is attached to the rod or spindle L which passes through the
hollow shaft or tube M which has one end screwed into the die B, and at the other
end carries a nut W which secures the fixed pressure plate N. The two lock
nuts UU on the end of the rod or spindle L is for adjusting the rod L. Between
the fixed pressure plate N and the movable pressure plate O there is a rubber
buffer P which causes to return to their normal position the movable portion K of
the inner die and the movable portion or ring Q of the outer die, by ineans of the
rods or pillars R and S.
The mode of operating our invention is as follows:-The piece of tin or similar
metal T is placed over the dies as shown in Fig. 1. Then the motion of the
machine brings the punch A into the die B, by which motion the metal blank is
first cut out and formed into the cap shape as shown at Figs. 3 and 4, and as is
well known. The inner punch C then continues its downward or closing motion,
and cuts out the centre of the cap, the annular ring H holding the top portion of
the cap during the cutting action, as shown at Fig. 2.
The position of the various parts of the punches and dies when at the bottom of
the stroke is shown by Fig. 2, with the rubber buffer P and the coiled or spiral
springs D and E compressed. In the receding motion the rubber buffer P pushes.
the ring back to its norinal position by means of the rods or pillars S S. and also
forces the inner die K back to its normal position by means of rods or pillars RR;
and the rod or spindle L is adjusted by the lock nuts U U so that the die K will
throw out the blank Z cut from the centre of the metal article. At the same time
the receding motion allows the springs D and E to force the inner punch C and
annular ring H also back to their normal position, thus releasing the stamped
article with the required hole in centre. Both the finished article and the blank
cut from the centre fall into boxes or other receptacles.
Figs. 5 and 6 show a complete circular cap X with hole cut in the centre as it
leaves our improved dies and punches; but it will be well understood that the
shapes of the punches and dies may be varied to produce an oval, square, rectangular,
crescent, or other suitably-shaped article.
It will also be obvious that various suitable metals other than tin can be operated
upon by our improved punches and dies.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what
we claim is :-
1. In a machine for punching, pressing, stamping, or cutting metal lids, caps,
ferrules, or similar articles, the use of punches and dies so combined and operated
that the blank is cut out and formed into a cap shape, and a hole is cut in the cap,
and the cap and the piece of tin cut out of the cap are removed, all by one con-
tinuous motion of the machine substantially as described and illustrated.
2. In combination with our improved dies and punches the use of a rod or
spindle L adjusted by lock nuts U U and passing through the hollow shaft or
tube M for the purpose and substantially as described and illustrated.

page_text: 3. In combination with our improved dies and punches the use of an annular
ring H and spiral spring E for the purpose and as described and illustrated.
Dated this 21st day of June 1895.
For DAN RYLANDS, LIMITED,
WILTON BROOKE, Secretary.
WILLIAM JAMES PAINTER.