ади реаming or flanging маснегу Use in the Manufacture of Sheet Metal Cans and for similar Purposes.
Year: 1887

page_text: Date of Application, 15th Mar., 1837.
Specification Accepted, 26th Aug., 1887.
TUT
ади реаming or flanging маснегу
Use in the Manufacture of Sheet Metal Cans and for similar
Purposes.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
Southampton Buildings, in the County of Middlesex, do hereby declare the nature of
this invention and in what manner the saine is to be performed, to be particularly
described and ascertained in and by the following statement:-
:-
My present invention relates to presses and double seaming or flanging machines
which are employed by tinners in the manufacture of tin-ware and it consists in
certain novel details of construction, as hereinafter fully set forth, the object being to
produce a simpler, cheaper and more effective device of this character than is now in
ordinary use.
The nature and operation of the improvement will be readily understood by all
conversant with such matters from the following explanation.
Figure 1 is an isometrical perspective view of my improved press and double-
seaming machine, represented as mounted on the bench and in position for use.
Figure 2 is a side elevation of the same detached from the bench.
Figure 3 is a vertical transverse section of the disc or bed-die, a portion of its
supporting shaft and the spring being shown in side elevation.
Figure 4 is a vertical longitudinal section of the formers or rotary dies, a portion
of the shaft on which they are mounted being shown in side elevation.
Figure 5 is a diagram showing the position of the dies when the machine is used as
a press; and
Figure 6 is a like view showing the position of the dies when the machine is used
as a double-seamer.
Like letters of reference indicate corresponding parts in the different figures of the
drawings.

page_text: A represents the body or bed of the machine, which is adapted to be fastened to the
bench B, by the screws .c.
Mounted on one end of the bed A is a vertically arranged standard C, which is
secured thereto by the nut and bolt m, said bolt passing through a slot (not shown)
which extends longitudinally of the bed beneath the foot of the standard, thereby
rendering the same adjustable. Any other suitable means may, however, be employed
for securing and rendering the standard adjustable, if desired.
Journalled horizontally in the upper portion of the standard C, is a crank-shaft D,
mounted in suitable boxes f, b, and provided with a spring adapted to elevate the
inner end of said shaft when pressure on the same is removed.
A vertically arranged standard E is also mounted on the bed A, being secured
thereto by the nut and bolt al, said standard being rendered adjustable by said nut
and bolt and the slot d in the bed through which the bolt passes.
A vertically arranged shaft H has its lower end pivotted in a step N on the foot of
the standard E, said shaft passing through an elongated slot (not shown) in the
arm 0, at the upper end of said standard.
A horizontally arranged disc or bed-die K is mounted on the shaft H, said disc
being dish-shaped or having a cavity on its upper side, and provided therein with a
series of rabbets or shoulders h corresponding nearly in contour, but obversely, with
the cover to be formed.
A series of rotary dies or formers t, l, g, are fixed on the shaft D, being adapted
to work in connection with the die K, said formers being secured by the nut P, and
prevented from turning on the shaft by an ordinary spline 12.
A lever J, provided with a cam or projection i, has one of its ends jointed to the
top of the standard C, and its other to a rod L which passes downwardly through the
bench B, and is connected with the treadle M, the projection i being adapted to
engage the box f and force the dies t, l, g, z down onto the disc K when said treadle is
depressed, the spring raising said box and dies when the treadle is released.
v
Instead of using the lever J, rod L, and treadle M for forcing the upper dies down
onto the disc K, a screw or any other suitable means may be employed, if preferred.
Attached to the standard C is a bracket and mounted on a horizontally arranged
stub-shaft n, which is rendered vertically adjustable in said bracket by the screw 13, is
a small wheel or roller w, disposed beneath the edge of the disc K and slightly in front
of the die z, the object of said roller being to support the side or edge of said disc
and prevent it from being broken by the pressure of the rotary dies or formers, t, l, g, z.
This bracket and its roller may, however, be dispensed with, if desired.
The die is provided peripherally with a double-seaming or flanging edge or
rebate 14, adapted to work in conjunction with the disc K, when the machine is used
as a double-seamer or flanger as shown in Figure 6, and with an annular flange 15
adapted to fit the annular groove 16 in the disc K, when the machine is used as a
press, as shown in Figure 5.
The edge 17 of the disc K may be formed at right angles to the plane of its top for
double-seaming pans and other vessels having straight sides, as shown in Figures 2
and 3, or it may be inclined for double-seaming vessels having flaring or inclined
sides, as shown in Figures 5 and 6, it being understood, of course, that the shoulder 14
is to be formed accordingly.
A vertical socket 18, is formed in the upper end of the shaft H; and disposed in
said socket is a coiled spring Q, which projects upwardly above the top of the disc K
and is provided with a cap 20, preferably composed of leather, rubber or similar
material.
The object of the spring Q is to elevate the pan or vessel being double-seamed and
keep it out of contact with the disc K, except at a point immediately under the
bearing surface of the die t, thereby preventing the bottom of the vessel from being
scratched or defaced by the disc in the usual manner. When the machine is used as
a press the spring acts to elevate the edge of the cover or piece cut from the cover,
and enable the workman to readily remove it from the disc.

page_text: In the use of my improvement as a press for the manufacture of tin or sheet-metal
covers for pots, pails, and the like, the treadle M being elevated and the dies arranged
as shown in Figure 2, the circular blank, from which the cover is to be made, is
placed on the disc or bed-die K. The treadle is then depressed and the shaft D
turned, causing the dies on said shaft to press on the blank and force it into the disc or
bed-die, thereby forming the cover in a manner which will be readily obvious without
a more explicit description.
In the use of the improvement for double-seaming, the standards are adjusted to
bring the rabbet or double-scaming edge 14 of the diet into proper position with
respect to the edge 17 of the disc K, as shown in Figure 6, the article to be double-
seamed being then placed on the disc and double-seamed in the usual manner.
A ring or binder of tin provided with a downwardly projecting annular flange may
be employed to secure the blank on the disc K, if desired, when the machine is used
as a press.
The edges of the shoulders or rabbets in the face of the disc K are angular, but
the working edges or peripheries of the dies t, l, g on the shaft D are slightly rounded,
so that said last-named dies do not press the sheet-metal blank into the bed-die to make
it conform precisely with said rabbets, but bend it in curves over them, thereby
preventing the sheet from cracking or breaking under the pressure to which it is
subjected and making a more desirable cover.
By not bringing all parts of the sheet into contact with the bed-die the cover is
also prevented from being as badly scarred or scratched as it would be if pressed fully
into the rabbets or angles h.
It will be obvious that one or more dies may be employed on the shaft D, and that
the bed-die K and also the dies or formers on said shaft are designed to be changed to
correspond with the work to be performed or the style of cover to be made.
When the machine is used for double-scaming heavy work a short crank-shaft is
employed in place of the shaft D, or one which does not project so far over the bed-
die K, the double-seaming die t being secured on the end of the shorter shaft in the
position occupied by the die in Figure 2, thereby enabling a greater pressure to be
exerted on the double-seaming die by means of the treadle than is possible when said
die is placed at the end of the long shaft. Shafts of different lengths may also be
used for the other dies, in accordance with the requirements of the work.
=
I do not confine myself to the use of the spring Q in the shaft H, as, when the
machine is used for double-seaming, a stud projecting slightly above the top of
the disc K may be inserted in the socket 18, and used instead of the spring; or the
shaft H may be elongated to extend above the top of the disc, if desired.
Having now particularly described and ascertained the nature of the said invention,
and in what manner the same is to be performed, as communicated to me by my foreign
correspondent, I declare that what I claim is :-
First. In a machine of the character described, the combination of a vertically
arranged shaft, a horizontally arranged disc mounted on said shaft, a horizontally
arranged shaft, a vertically arranged die mounted on said horizontal shaft and adapted
to engage said disc, a crank or means for rotating the die, a treadle mechanism or
means for causing the die to press on the disc, and a spring or means for keeping the
pan or other vessel elevated from the disc while being double-seamed, substantially
as described.
Second. In a machine of the character described, the combination of the die t
provided with the double-seaming edge or shoulder 14, the shafts D, E and the disc K,
said disc being recessed on its upper side for receiving a die or dies on the shaft D,
and provided with the double-seaming edge 17, substantially as set forth.
Third. In a machine of the character described, the diet provided with the shoulder 14
and annular flange 15, in combination with the disc K, provided with the annular
groove or rebate 16, and double-seaming edge 17, substantially as set forth.

page_text: Fourth. In a machine of the character described, the spring Q, in combination with
the shaft H, disk K, shaft D, and a die adapted to operate in conjunction with said
disc, substantially as set forth.
Fifth. In a machine of the character described, the combination of the shaft D
carrying a vertical die or dies, and the shaft H mounted in the standard E and carrying
the dise K, said disc being provided with a double-seaming edge 17 and recessed on
its upper side to receive a die or dies on the shaft D, and said standard being adjustable
to enable the disc to be moved laterally into position for use with the die or dies on the
shaft D, and thereby convert the machine from a press into a double-seamer and vice
versa, substantially as described.