Improvements in Tools for Ornamenting Watch Cases and analogous Artioles
Year: 1894

page_text: Date of Application, 27th Dec., 1894
Complete Specification Left, 30.h Aug., 1895-Accepted, 19th Oct.,
1895
PROVISIONAL SPECIFICATION.
Improvements in Tools for Ornamenting Watch Cases and analogous
Artioles
I, FREDERIC ECAUBERT, of No 434 Vanderbilt Avenue, Brooklyn, in the
County of Kings and State of New York, United States of America, Machinist,
do hereby declare the nature of this invention to be as follows .-
-
This invention relates to improvements in tools for ornamenting watch cases,
and analogous articlos, and is especially intended for making watch case lids and
Bular articles in which the exterior surface 18 ornamented.
In canying out this invention, a die is provided having an ornamental interior
surface conesponding to the exterior surface of the article to be produced, and a
sheet metal blank is introduced into this die and held, by an open die that 18
clamped to the back die, in any suitable chuck by which the parts are rotated
during the operation of pressing the sheet metal blank into the internal die, and
this operation is performed by rollers.
The special feature of this invention relates to a peculiar conical roller and its
support that is employed within the watch case back, or similar article, to force
the metal into the ornaments upon the interior surface of the die. This roller 18
caused to net from the centre of the lid, or similar article, outwardly, and upon the
utatior surface of such lid, or similar article Then the comical toller and its holder
are taken off a supporting bar or pin, and another roller is appled for finishing the
interior of the lid around the edges thereof, and for forcing the metal into the
oinainents upon the surface of the internal die. In accomplishing this object,
the second roller is supported by on offset shoulder resting upon an internal offset
or shoulder in the open die so that the action of the finishing roll is rendered
uniform and its convex surface properly pressed against the interior surface of the
watch case centre, or other article, that is being formed. This ensures great
uniformity in the manufacture of watch case lids, or similar articles, and causes the
metal to fill in the engraved ornaments upon the internal die, so that the ornaments
upon the surface of the watch case lid, or similar article, aro full and perfect.
The first roller made use of is generally of a conical configuration, the surface
being convex, and it is supported upon a pin passing through a stock or head
within which the comeal roller is held aud made to revolve. This stock is received
upon the pin or holder and held in position so that it cannot rotate while the
conical roller is moved laterally during its action upon the interior of the watch
case lid. The same pin is adapted to receive the second roller when the stock of
the first roller has been removed therefrom, thus facilitating the action of the parts
in producing a complete watch case lid, or similar article, so that when the same is
emoved from the coucave die, but little handling or manipulation is required in
fitting such lid to the watch case, or other article.
Dated this 27th day of December 1894.

page_text: Improvements in Tools for Ornamenting Watch Cases and analogous
Artioles.
I, FREDERIC ECAUBERT, of No. 434 Vanderbilt Avenue, Brooklyn, the
County of Kings and State of New York, United States of America, Machinist,
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 is especially intended for making watch case lids and similar
articles in which the exterior surface is ornamented, and in carrying out this
onvention a die is provided having an ornamental interior surface corresponding to
the exterior surface of the article to be produced, and a sheet metal blank 18
introduced into this die and held by an open die that is clamped to the back die
1 any suitable chuck by which the parts are notated during the operation of
pressing the sheet metal blank into the internal die, and this operation is performed
by rollers.
The special feature of this invention relates to a peculiar conical roller and its
support that is employed within the watch case back on similar article to force the
metal into the ornaments upon the interior surface of the die, and this roller is
caused to act from the center of the lid or similar article outwardly and upon the
interior surface of such lid or similar article, and then the conical roller and its
holder are taken off a supporting bar or pin and another roller is applied for
finishing the interior of the lid around the edges thereof, and for forcing the metal
into the ornaments upon the surface of the internal die, and in accomplishing this
object the second roller is supported by an offset shoulder resting upon an internal
offset or shoulder in the open die so that the action of the finishing toll is rendered
uniform and its convex surface properly pressed against the interior surface of the
watch case center or other article that is being formed, thus ensuring great
uniformity in the manufacture of watch case lids or similai articles, and causing
tbe metal to fill the engraved ornaments upon the internal die so that the
ornaments upon the surface of the watch case lid or similar article, are full and
perfect.
The first roller made use of is generally ol a conical configuration, the surface
being convex and it is supported upon a pin passing through a stock or head
within which the conical roller is held and made to revolve, aud this stock is
received upon the pin or holder and held in position so it cannot rotate while
the comical roller is moved laterally dug its action upon the interior of the
watch case lid, and the same pin is adapted to receive the second roller when the
stock of the first roller has been removed the efiom, thus facilitating the action of
the parts in producing a complete watch case lid or similar article, so that when
the same is removed from the concave die but little handling or mampulation 19
required in fitting such lid to the watch case or other article.
In the drawing, Fig. 1 is a section representing the dies made use of together
with the roller and support that is first employed in forming the watch case
lid or similar article. Fig. 2 is a similar section showing the second roller that IB
used in finishing up the interior of the lid or similar article near the edges of the
same, aud Fig. 3 is a detached view of a modification of the rollers as employed
upon the lud or similar articles.
The dies A and B are adapted to being received into a chuck of any suitable
character and firmly clamped together. The back die A 18 adapted to receiving
the ornamenting die C, the recess of which is to be of the size and shape corre-
sponding to the article to be produced, and the interior surface 18 more or less

page_text: ornamented according to the ornaments that are to be placed upon the watch case
lid or other article
The front die B is open having an edge 2 that may be slightly beveled and
against which the nearly flat surface of the watch case lid, bezel on other article 18
formed, and the opening within this edge is to neatly correspond to the size of the
inturned edge or snap of the watch case lid or similar article, and at 3 there is an
annular shoulder around within the opening of the front die B. I have represented
the blank that forms the watch case lid on other article at D, and I remaik that it
is to be struck up in dies in any or linary manner so as to be approximately of the
alape ultimately required so that such blauk can be inserted into the ornamenting
die C, and then the edge 2 of the die B will beat against the edge of such blank
to hold the blank into its place in the die C while being acted upon by the rolls
hereafter described
"
The couoidal roll E has a surface that is adapted to act upon the interior of the
lid D, such sui face is usually convex as well as conoidal and stably polished so
as to act upon the intero sui face of the lid D without roughening the metal itselt,
as these improvements are especially adapted to act upon what are known as "filled
watch case lids, namely lids inade of plate brass or similar inferior metal with the
faces plated with gold in comparatively thin layers. The sm face of the roll E 15
preferably of greater convexity than the concavity of the lid or similar article, so
as to net progressively and on a small area at one time.
This cononlal toll E is supported upon au axis F which is preferably tapering,
and there is in the stock Ga diagonal opening for the reception of the conondal
roll E, and the axis F passes through the stock G diagonally; and it is
advantageous to make use of a cylindrical stock G that is cut away at 4 to allow
for the insertion of the axis, and the plate 5 that is screwed to the stock and hoars
against the axis F heeps such axis in its position but allows for the removal of
such axis whenever necessary, and I remark that the smaller end of the axis Fis
preferably received into a hole in the overhanging support or ledge 6 of the
stock G adjacent to the smaller ond of the conoidal roll E, the edge of which
ledge 6 is sufficiently back from the line of the surface of the coroidal oll E to
prevent the edge of such ledge touching against the smface of the lid on other
article operated upon.
The stock G is tubular for the reception of the pin II at the end of the holder
o tail stock of the lathe or other machine in which the spinning operation is
performed, and I remark that this pin LI is sufficiently strong for supporting the
stock G against the lateral thrust when the pin and stock G are moved bodily
while the dies A B and lid D are being notated, so that the roll E is pressed with
the necessary force against the central portion of the lid D) and forces the metal
into the oinaments within the die C, and then the pin 11, stock G and roll E are
moved bodily towards the periphery of the lid by any suitable slule est or other
device carrying the pin II and tail-stock, and such pin II and stock Gate moved
backwardly during this operation sufficiently to cause the roll to properly
contact with the inner surface of the lid and press the metal thereof so as to fill the
ornaments in the die C, and the surface 7 of the stock G may form a stop against
the metal of the die B adjacent to the shoulder 3, and when these parts come into
contact the duty of the conoidal roll E will have terminated, and the parts are
relieved of pressure and the rail stock diawn back so that the stock G can be taken
away from the pin II, and I iemark that the key or pin 9 upon the stock G+ has
prevented such stock rotating upon the pin 11, and this is withdrawn from a hole in
the tail-stock or bai supporting the pin 1 when such stock G is removed
וויץ
The His adapted to fit the interior of the finishing roll 1, and upon which
pin the finishing toll 118 free to evolve, and the end of the finishing roll I 18
convex, as shown at 10 with a beveled or conoidal edge 11 or of other desned
shape, adapted to finish the interior of the watch case lid or other niticle
unmediately adjacent to the surface 2 of the front open die B, the convex
surface 10 of the roll being adapted to finish the rounding portion of the lid D as

page_text: the dies and roll revolve together, but in order to prevent the metal of the hid
pressing the roll outwardly so that the metal of the lid may not be of uniform
thickness, support such fishing roll I by the annular shoulder 12 of such roll I
esting upon the annular shoulder of the front die B, as indicated in Fig. 2, it
being understood that the pin H and 1oll are moved laterally and bodily after
the shoulder 12 rests upon the shoulder 3 and the necessary force is applied in the
lateral duection for fishing up the interior of the lid and pressing the metal
thereof fully into the ornaments upon the surface of the ornamenting die C, and at
the same time the periphery of the lid is filled out perfectly, and the face of the
lid which comes in contact with the watch case center is also completely finished,
and the internal edge forming the snap of the case is also completed so as to be
adapted for use or to be slightly turned as usual in fitting the snaps of the case
together.
The conoidal roll E acts more or less as a bunisher according to the friction on
its arbor, and it may be held from rotation and form only a burnisher as the
equivalent of a roll, and such roll E may be in the form of two or more rolls, as
indicated by the dotted line Fig 1, and remark that it is usually advantageous
to make the roll I in one piece, but the cylindrical portion of such roll may be
separate from the comical part.
By this improvement the annular shoulder being at a distance from the edge of
the hd and of large diameter than the inner edge of the lid, the difliculties
aforesaid are avoided and the opening in the face die couesponds, or nearly so, to
the mer edge of the lid, and hence such opening is as large as possible to give
100m for manipulating the rolls
When two rolls E E are used, as illustrated in Fig. 3 they act at opposite sides
of the axis of rotation and prevent the stock buckling and ensure uniformity and
smoothness of the interior of the case on hd and lessen the risk of indentations on
the inside where the ornament is considerably raised on the outside, because the
olling action will carry the metal to increase the thickness and fill such ornament
if one roll 16 sustained by the other so as to prevent indentation.
The operative surfaces of both the rolls and I should be hard and smooth
similar to the surfaces of burnishers because there is always more or less of a
rubbing action of such rolls upon the surface of the metal.
Having now particularly described and ascertamed the nature of my said
invention and in what manner the same is to be performed, I declare that what
1 claim 18:
First. The method berem specified of making lids for watch cases and other
articles, consisting in placing a blank with a die corresponding to the external
shape of the lid or other article when finished and holding the same by an open
die, pressing the mictal and forcing the same into the internal die by a conoidal
roller upon an chued axis, finishing the interior of the lid near the edges theicot
by a roll having a configmation corresponding to said interior part of the article
and mounted upon an axis substantially parallel to the axis of iolation of the die
and lid and supporting such roll by a separate shoulder in the open die and moving
the roll laterally, substantially as set forth
Second. The combination with an internal die having a configuration coire-
sponding to the exterior of the watch case lid on other article to be made, of a dic
having a central opening corresponding of nearly so to the size of the muer edge
of such article, and a separate annular shoulder of larger diameter, a roll having a
peripheral configuration conresponding to the interior of the lid or similar article
to be produced near the edge thereof, and an annular shoulder of large diameter
resting upon the shoulder of the internal die while the lateral motion is being
communicated to the roll within the lid on similar article, substantially as set
forth.
Thud. The combination with an internal die having a configuration corie-
sponding to the article to be produced, of a die having a surface against which the

page_text: edge of the lid or similar article is finished and an opening within such surface, a
conoidal roller for acting upon the interior surface of the lid or similar article, an
inclined axis, a stock supporting the axis and having a central opening substantially
parallel to the axis of rotation of the lid, and a pin or support for the stock for
bolding the same and the roll while being moved laterally, substantially as set
forth.
Fourth. The combination in tools for making watch case lids and similar articles,
of a die corresponding internally to the exterior of the article to be produced, a die
having a central opening extending to the inner edge of the surface against which
the uuer edge of the lid or similar article is formed, and a separate offset
shoulder of larger diameter, a roller for finishing the interior of the article near
the edges thereof and a separate annular shoulder on such roll to rest on the
offset shoulder and support the roll during its operation, substantially as set
forth.
Filth. The combination in tools for making watch case lids and similar articles,
of a die corresponding internally to the exterior of the articles to be produced, a
die having a central opening extending to the inner edge or nearly so of the
lid or similar article to be formed, a roller corresponding to the interior of the
article to be formed near the edges thereof, and annular shoulders that rest one
on the other for supporting the roll during its operation, substantially as set-
forth.
Dated this 30th day of August 1895.
ERNEST DE PASS,
Chartered Patent Agent,
78 Fleet Street, London, and 5 Market Street, Nottingham,
Agent for the Applicant.