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Патент USA US2109376

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Feb. 22,1938.
' Filed Nov. 50, 1955
Alfred I.’ Emily
Patented Feb. 22, 1938
Alfred F. Reilly, North Attleboro, Mass., assignor
to Evans Case Company, North Attleboro,
Mass, a corporation of Massachusetts
Application November 30, 1935, Serial No. 52,337
1 Claim. (Cl. 29-—160.6)
This invention relates to a method for forming
thermore, the resultant connection is weak and
jewelry mountings or the like.
subject to damage while in use. Other methods
One of the objects of this invention is 'to pro
vide a simple, practical and inexpensive method of attaching fastening elements to these mount
ings have been undesirable either because of
of forming mountings for stones or the like. An
other object is to provide a method of the above weak construction or excessive cost of manufac
ture. {Limitations of size and the amount of
nature which will be e?icient and reliable. An
other object is to provide a method of the above metal used have prevented the making of a strong
1 O nature which will form a mounting neat and at
tractive in appearance and of such sturdy con
struction as to withstand hard usage. Another
object is to provide a method of the above nature
the Various steps of which will be simple and
_ inexpensive to perform resulting in a reduction
Another object is to provide a
6 of labor costs.
method of the above nature which results in a
uniform product of high, quality. Another ob
ject is to provide a practical mounting for stones
20 which may be made from inexpensive materials
and which is attractive in appearance. Other
objects will be in part apparent and in part
pointed out hereinafter.
The invention accordingly consists in the
features of construction, combinations of ele
“ ments, arrangements of parts and in the several
steps and relation and order of each of the same
to one or more of the others, all as will be illus
tratively described herein, and the scope of the
application of which will be indicated in the fol
lowing claim.
In the accompanying drawing, in which is
shown one of the various possible embodiments of
my invention,
Figure 1 is a vertical sectional view of appara
tus which may be used in the practice of my
Figure 2 is a vertical sectional view of a por
tion of the apparatus shown in Figure 1, showing
a preliminary step in the practice of my method;
Figure 3 is a vertical sectional view similar
to Figure 2 and showing a further step in my
Figure 4 is a vertical sectional view similar to
Figure 2, showing still a further step in the prac
tice of my method;
Figure 5 is a perspective view of ‘the ?nished
article, and
Figure 6 is a bottom plan view of the article
shown in Figure 5.
Similar reference characters refer to similar
parts throughout the several views of the
As conducive to a clearer understanding of cer
tain features of this invention, it might here be
~ pointed out that making jewelry mountings or
the like and more particularly the securing of
lugs or other fastening elements to such mount
ings has presented many di?iculties in the past.
Where solder is used as a fastening medium the
60 operation is costly and time consuming.
mounting with integral lugs formed thereon.
This is partially due to the fact that the con
tinued stamping of soft metals such as those from 10
which these mountings are made causes the
metals to crystallize and crumble. One of the
objects of this invention is to provide a method
for making jewelry mountings in which the
above-mentioned di?iculties as well as many
others are successfully and practically elimi
Referring now to Figures 5 and 6 of the draw
ing, there is generally indicated at ID a jewelry
mounting which may be made by my method. 20
Mounting In preferably comprises a body I I hav
ing lugs l2 and I3 formed thereon and integral
therewith. The top of body portion H, as seen
in Figure 5, may have any desired cavity [4
formed therein and also may be any desired shape 25
to support stones or other ornaments.
Referring now to Figure 1 in which I have.
shown the dies and apparatus for producing the
article shown in Figure 5, a die'block generally
indicated at l5 has a cavity l6 of any desired 30
shape formed therein. Thus a metal blank ‘I’!
may rest in the cavity l6. Blank I‘! may be of
any metal suitable for mountings of this char
acter such as brass, copper, white metal, gold,
silver or bronze. Extending downwardly from 35
the bottom l8 of cavity l6 are two indenta
tions l9 and 20 which are preferably of the
dimensions of lugs l2 and I3 (Figure 5). A
punch 28 is secured to any suitable driving ap
paratus capable of forcing it down on blank l1 40
(Figure 1); the bottom surface 28a of punch 28
is shaped to form the desired shape in the top of
the mounting, for example, the cavity I 4 (Figure
5). Accordingly when punch 28 is forced down
upon blank I1, the surface 28a thereof will form 45
or partially form indentations in thetop surfaceof
the blank, and, furthermore, portions of the blank
Will commence descending into indentations l9
and 20, all as will be more fully described here
Any suitable apparatus may be provided for
removing blank I 1 from cavity l6. As will be ex
plained later, blank I‘! must be removed from the
cavity several times during the practice of my
method. It therefore becomes desirableto have
some apparatus for removing the blank from the
cavity in quick order. A pin 2|, preferably small
in diameter, extends through a suitable hole 22
formed in bottom l8 of the cavity l6. Pin 2|
extends downwardly through die block I5 and 60
consideration of Figure 3, it will be seen that the
has secured to or integral with its end a ?ange
length of lugs I'Ib is thus increased as is the
depth‘ of indentations Ha. The blank is then re
portion 23. Flange portion 23 is spaced from
the bottom 24' of die 'block’ l5 and'interposed
therebetween is a spring 25 which continually
forces ?ange portion 23 against the periphery of
moved, repl'ated and reannealed- as described
Again the blank is placed in the cavity l6 and
26 is rigidly "
a cam member 26. Cam member
connected to a shaft 30 which may be suitably
after another stamping operation indentations
l'l'a are sufficiently deep and lugs |‘|b are of the
desired length thus occupying indentations l9
journaled to the sides of the machine mounting
(not shown). A link 29 ?xedly connected to
and 20 in their entirety. Thus the blank is com 10
pleted and as a ?nal step it should be recoated
and reannealed in the manner described above.
Blank H as. it appears in Figure 4 has assumed
10 shaft 30 is in turn connected to‘ a lever 3| by a
link 32. Lever 3| is pivotally connected to the
machine mounting by a pin 33. Lever 3| is pref
erably in an accessible position on the machine
where it may be easily grasped by the operator
thereof, for example, by way of a handle 3|a;.
a shape substantially similar to the completed.
mounting appearing in Figures 5 and 6. It will
be understood that the shape of the mounting
Accordingly when it becomes necessary to re
may be substantially varied’ as may thev num
move blank |'| during the practice of my method,
lever 3| is forced downwardly to pull link 29
downwardly and thus turn cam member 26, thus
ber and position of lugs l2 and I3. These
changes may be made without a?ecting the es
sential details of the method described herein
above. Furthermore, the number of stamping.
forcing pin 2| upwardly against the action of
spring 25., Pin 2! thus moves into cavity Is to
force. the blank out of the cavity. As soon as
platingrannealing operations described above
may vary considerably according to the material
lever 3| is released, spring 25, pressing against
flange portion 23, immediately forces pin 2|
downwardly out of cavity 16, leaving the cavity
from which the blanks are formed. In some in
stances more or less stamping operations will be 25
necessary. However, in most instances I have
found that it is desirable to remove the blank
free to receive blank i‘! for the next stamping
operation. Thus I have provided simple die ap
paratus for stamping mountings or the like com
from the cavity for the plating-annealing oper
ation after each stamping operation. In this
way crystallization of the metal is avoided; the
mounting and more important the fastening lugs
prising a method to berdescribed hereinafter.
In the practice of my method, I first place the
blank ll in cavity l6 of the machine. Metal
blank I? may be of any suitable ductile metal
such as brass, copper, white metal, gold, silver
or bronze. Next the punch 28 is operated and
thus forced down upon the blank, and, upon re
lease of the punch, the blank is partially formed
are thus sturdy, free from deterioration, and well
able to withstand hard use.
Accordingly it will be seen that I have pro
vided a method by the practice of which integral 35
lugs may be formed in jewelry mountings or the
like without undue inconvenience, excessive labor
substantially as shown in Figure 2. Thus from
an examination of Figure 2 it will be seen that
or increase in expense.
Not only are the re
sultant mountings strong but also many of the
troublesome problems incidental to the manu 40
facture of mountings wherein the fastening lugs
small indentations Ila have been formed in the
top of the blank and small lugs ilbl have also been
formed therein, thus partially occupying inden
are attached as by soldering are avoided. Thus
tations l9 and 20.
The blank is then removed from the cavity by
pushing lever 3| (Figure l) downwardly, as ex
' _plained more fully above. 'Next the blank |'|
I have provided a thoroughly practical method,
apparatus and article in which the several ob
jects hereinabove referred to are successfully
as nickel, chromium, rhodium, cobalt or for that
As many possible embodiments may be made
of the mechanical features of the above inven
tion and as the art herein described might be
iscoated with an oxidation. resisting metal such
matter any metalliccoating having the ability to
resist thecorrosive effects of oxygen under high
temperatures. Such coating may be applied in
varied in-various parts, all without departing
from the scope of the invention, it is to be un
any convenient manner although I prefer to use
an electroplating‘ process for this is inexpensive
and coatings thus applied serve the purpose very
derstood that all matter hereinbefore set forth
or shown in the accompanying drawing is to be
interpreted as illustrative and not in a limiting
effectively. The blank is then placed in an oven
and annealed at the proper temperature. The
temperatures used during this annealing proc
ess vary considerably, all according‘to the char
acteristics of the particular metal from which
the blank is formed. For example, if the blank
I claim:
comprising the steps of subjecting a metal blank
seated in a die having a shank cavity and con
deepened and a lug is formed and successively ex
the metal due to the stamping operation described
tended at the opposite end of the blank, and an
Next the blank is replaced in cavity l6 and
another stamping operation performed thereon
?ned therein against lateral expansion, to re
peated impacts of a plunger having a serrated
cross-sectional outline, the repeated impacts be
ing struck by the same plunger upon the blank
seated in the same die,,whereby the indentation 65
produced at one end of‘the blank is successively
easily determined; the ‘important object of this
annealing processvis to avoid crystallization of
deepindentations and elongated mounting lugs,
annealing temperature of 550° F. On the other
hand, if the blank is white metal, an annealing
temperature of 225°. F. is desirable. The proper
annealing temperatures for other metals may be
The method of forming jewelry mountings with
is brass, best results may be obtained from an
79 substantially similar to that described. From a
healing. the impacted-blank between the impacts
to remove the hardening resulting therefrom.
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