Improvements in the Method of and Machinery for Decorating Watch-case Backs, Caps, and Centers, and a Method of Making Roller-dies for Decorating such Backs and Caps.
Year: 1890

page_text: Date of Application, 15th Apr., 1890-Accepted, 21st June. 1890
Date of Application, 15th Apr., 1890-Accepted, 21st June, 1890
COMPLETE SPECIFICATION.
Improvements in the Method of and Machinery for Decorating
Watch-case Backs, Caps, and Centers, and a Method of Making
Roller-dies for Decorating such Backs and Caps.
A communication from abroad by EDWIN LEACH, Machinist, and SAMUEL DECATUR
MORRIS, Lawyer, both of the City of Brooklyn, in the State of New York, United
States of America.
I, JOHN CORRY FELL of the firm of Fell and Wilding of 1 Queen Victoria Street
in the City of London, Patent Agents, do hereby declare the nature of the said Inven-
tion, and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
The object of this invention is the decoration of watch-cases or portions thereof by
machinery in imitation of certain descriptions of hand-engraving, and, more
particularly, the transfer to watch-case "backs" and "caps," either or both, of more
or less broad annular or segmental designs, with plain escalloped or irregular
borders, and the transfer of suitable designs to watch-case "centers," so that
ordinarily a great number of backs or caps or centers of a given size and pattern
may receive a given design of such description from one engraving thereof or of
a repeated portion thereof by hand, and consequently at greatly reduced expense.
The nature of the invention and suitable means for carrying the same into effect
will be understood on reference to six sheets of drawings which accompany this
specification as part thereof, and on which
Figure 1 (Sheet 1) represents a perspective view of a small engine-lathe and its
reversing counter-shaft, with attachments to the face-plate and tail-stock of the
Inthe whereby it is converted into a machine for decorating watch-case backs and
caps according to this invention j
Figures 2 and 3 (Sheet 2) represent respectively a top view of the said face-
plate tail-stock and attachments and a section on the line x-x Fig. 2;
Figure 4 (Sheet 3) represents a face-view of the face-plate with the attachments
thereto;
Figure 5 represents an end view of the tail-stock attachment or work-holder;
Figure 6 a top-view of its several parts separated and partly in section; and
Figure 7 a perspective view of the die-holder and its spindle, separated;
Figure 8 (Sheet 4) represents a view similar to Fig. 3, with the spindle of the
roller-die in its alternative socket ; and
Figures 9 and 10 represent perspective detached views of alternative roller-dies;
Figures 11 to 18 inclusive (Sheet 5) illustrate the method of making such roller-
dies;
Fig. 11 representing a diagramatic view of the front back of a watch-case, of a
size and pattern to be decorated,
Fig. 12 a perspective view of a die-blank of a suitable size,
Fig. 13 a diagram illustrating in connection with Fig. 11 the method of propor-
tioning the roller-die to the work,
Figs. 14 to 17 a series of elevations illustrating the process of completing a
roller-die, and
Fig. 18 a perspective view of an anvil-die for transferring hand-engraving to such
roller-dies; and
Figures 19 to 24 inclusive (Sheet 6) illustrate the decoration of watch-case
centers according to the same invention in part,
Fig. 19 representing an elevation partly in section of the modified attachments
pplied to the lathe face-plate and tail-stock,
Fig. 20 a perspective view of the roller-die detached,
Fig. 21 a like view of its pintle and housing detached,
D...1101

page_text: Fig. 22 a like view of the die-holder detached,
Fig. 23 an end view of the modified tail-stock attachment or work-holder, and
Fig. 24 a side view of the several parts of said work-holder separated.
Figures 234 and 8 are enlarged from Fig. 1, Figures 5 6 7 9 and 10 are enlarged
from Figs. 2 to 4 and Fig. 8, Figures 11 to 18 inclusive are drawn to a still larger
scale, and Figures 19 to 24 inclusive are drawn to another scale.
Like letters refer to corresponding parts in the several figures.
The method of decorating watch-case backs caps and centers, which constitutes the
first part of this invention, is illustrated by all the drawings, as hereinafter referred
to, but more particularly by Figures 1 and 3, Figures 8 to 10, and Figures 19
and 20.
This part of the invention consists in a novel mechanical process for decorating
annular or circular or segmental surfaces on the backs caps and centers of watch-
cases with hand-engraved designs or patterns, so that the same may be decorated
rapidly and inexpensively, and the design or pattern may be either sunk in or raised
on the work without warping the latter or appreciably changing its dimensions, as
well as without loss of weight.
The decorating can moreover be done after the "joints" are put on the backs and
caps, or, in other words, after the same are finished except the decorating and "finish-
polishing." Heating and cleaning the backs and caps after the decorating operation
are thus avoided; and the decoration consequently retains the brilliant coloring which
has heretofore been peculiar to hand-engraving.
In carrying this part of the invention into effect, the article to be decorated or
embellished is preferably kept stationary, that is to say non-rotary and immovable
edgewise, while a roller-die, having a peripheral face proportioned to the surface to be
decorated and preferably conformed to its radial contour, and provided with a given
design or an aliquot fraction thereof in reverse, is revolved in a circle, the roller-die
rotating freely at the same time upon its own axis in contact with the stationary
article, which is pressed against the roller-die. The double or compound or planetary
motion of the roller-die is found to be highly effective, in practice, as compared with
other methods of applying the roller-die which have been tried. By it the roller-
die is carried bodily into contact with every part of the surface to be decorated, and
is at the same time free to accommodate itself to the surface, so as to follow the first
impression of the figures in passing over them repeatedly.
The roller-die, if accurately proportioned to the work, may be revolved upon the
article in one direction, continuously, until the decoration is raised or sunk to the
desired extent. But perfect proportioning in every instance is practically impossible,
owing to slight changes in the roller-dies when they are bardened, and minute
variations in watch-case parts of a given style and size. I meet this difficulty by
revolving the roller-die upon the article first in one direction and then in the other,
alternately. Thus in decorating a given annular surface the roller-die is revolved a
full turn in one direction, which joins the design, then a full turn backward, and so
The roller-die being free to accommodate itself to the surface as aforesaid, the
peripheral projections and depressions of its face follow their counter-parts on the
article in the reverse movements. The result is clean and sharp outlines and full
figures, even if the design on the roller-die be a fraction too long or too short
circumferentially; and the slight discrepancy at the joining of the figures is practically
imperceptible.
on.
Alternatively the work may be rotated continuously or back and forth in contact
with a roller-die on a relatively stationary spindle.
The roller-dies, R Figs. 13 and 10 and R2 Figs. 8 and 9, used in decorating the
backs and caps of watch-cases, are made with their peripheral "faces" at less than
a right angle with their sides or ends, the angles varying according to the width of
the decoration; and their faces are simply bevelled, as shown at R2, or bevelled and
concaved, as shown at R, as may be required to conform each to the radial contour of
the surface it is to embellish, or as may be preferred.
The greatest diameter of the roller-die may be equal to the diameter of the outside

page_text: circle of the decoration, or it may preferably be an aliquot fraction of the latter, as
one-half or one-third, where a corresponding part of the design can be repeated to
complete the whole.
In decorating the centers of watch-cases in any kind of figure design or pattern to
take the place of hand-engraving, the same double or compound or planetary and
alternating motion of the roller-die is preferably used, the article remaining
stationary; the roller-die, R³, Figs. 20 and 21, being made with its peripheral face
of the proper diameter or diameters at right angles to the sides or ends thereof,
and preferably either flat or concave to conform it to the shape of the outer surface
of the center.
Any desired design or figures may thus be rolled upon or into the article, J, or J'
or J³, the properly proportioned roller-die, R or R² or R³, being first provided with
such design or figures or with an aliquot fraction thereof, in reverse, on a peripheral
face of the required shape.
Modifications of the said method, as above suggested, may be carried into effect by
machines and lathe-attachments such as have been heretofore used for milling or
knurling watch-case centers and bezels, or by mere modifications of such known
machines and lathe-attachments, provided with the peculiar roller-dies of the present
invention, in contradistinction to milling or knurling tools. And, thus applied, flat
faced roller-dies may be used for decorating convex surfaces by rocking them to
bring successive portions into contact, as in knurling. The decoration may also be
done before the joints are put on if preferred. But, for clean and sharp
reproductions of fine hand-engraving, it is considered essential that the work be kept
stationary instead of rotating it as in milling and knurling, and that the periphery of
the roller-die be conformed to the radial contour of the work, as well as proportioned
to its circumference, so that the entire width of the design may be applied at one
operation; and it is recommended that the alternating or back and forth revolving
movement be employed in all cases for the reasons above set forth.
The decoration so produced as aforesaid may be supplemented by hand-engraving,
lathe-work, etcetera, to suit the market, as, for example, by hand-engraved
escutcheons or center-pieces on the backs and caps, either or both, and by hand-cut or
lathe-cut border lines at the inner margins of the annular designs produced by the
roller-dies.
The machine for decorating watch-case backs and caps represented on Sheets 1 to 4
inclusive of the drawings constitutes the second part of this invention, and is
designed to produce the above-described decoration in imitation of hand-engraving
according to the said method as adapted for the clean and sharp reproduction of fine
hand-engraving in the manner aforesaid.
In carrying this part of the invention into effect, an ordinary reversing counter-
shaft, C, Fig. 1, may be employed, with its belt-shifter, B, and an ordinary small
engine-lathe, L, or so much thereof as is represented in Fig. 1, belted to said
countershaft; said lathe having a face-plate, F, on the live-spindle, A, Figs. 23
and 8, of its head-stock, H, its tool-rest removed, its tail-stock, T, adjusted to a
position conveniently near the face of the face-plate, and said face-plate and head-
stock provided with attachments to form those parts of the machine which are
peculiar to the present invention.
Such attachments may be constructed and applied as follows:
To the face-plate F, a guide-plate, G, is tightly attached by bolts, g², which pass
through holes drilled therefor in the face-plate on the opposite sides of a line passing.
through the axis of the live-spindle, hereinafter termed the axis of revolution, so
that a straight guide-rib, g, on the face of said guide-plate, is radial to said axis. :
Upon this guide-rib a slide, S, is fastened at the required distance from said axis by
gib-screws, s, with a suitable gib. (See Fig. 2.) And the face of said slide is
provided with a slotted and perforated projection, s², in which a die-holder, D, is
pivoted by a transverse bolt, d, and fastened at a necessary angle by a parallel.
bolt, d, the latter accommodated in its different positions by are slots in the .
respective sides of said projection a², seen in Figs. 13 and 8.

page_text: Said die-holder D, shown detached in Fig. 7, is constructed with a head-enlarge-
ment having effective surfaces, E E2, Fig. 7, at different angles relative to the shank
of the holder, and drilled sockets, ee, perpendicular to said surfaces respectively. A
stud-pin, P, to form the roller-die spindle, is tightly fitted to both of said sockets,
and is provided with a screw-threaded collar, p, Fig. 7, upon which to screw a nut to
facilitate removing and replacing the pin, and to form and preserve a smooth step for
the roller-dies, RR, which are fitted to the spindle-end of the pin so as to rotate
freely thereon.
The customary taper-bored dead-spindle, Z, of the tail-stock T, adjustable length-
wise by a crank-screw, Y, and fastened at will by an upright clamp-screw, X, is
provided with a work-holder, W, having a tapered shank which is fitted to said
bore.
This work-holder, shown detached in Figs. 5 and 6, consists of four separable parts,
namely said shank, w Fig. 6, a form-piece or hub, w², screwed upon the outer end of
the shank, an annular inner cap, ³, and an annular outer cap, w, the latter screwed
upon an external screw-thread, ws, Fig. 6, on said hub w². The terminal form-
portion, I, of this hub is fitted to the interior or back of a given size and style of
watch case back or cap; and its periphery is provided with a flat surface, i, to
accommodate the attached hinge-plate. A fork, /, fixedly attached to the hub, projects
over said flat surface and embraces the projecting tube of the hinge, so as to preclude
rotation of the back or cap. The inner cap w has a recess, t Fig. 6, fitted to the
thumb-lips of back backs. Front and back backs and caps of a given size and style
fit a single holder; and the shank w may answer for all the work-holders that may
be required.
A watch-case back or cap, J or J2, is applied to the form I, before or after the
hub w² is screwed upon the spindle w and the latter inserted in the dead-spindle Z of
the tail-stock. The inner cap is then slipped into place, as determined by the
location of said recess t, and the outer cap w₁ is screwed on, an interior shoulder of
the latter bearing against a peripheral flange, w, on the inner cap..
The spindle P is inserted in one or the other of the sockets e e' in the die-holder D,
according to the shape of the surface to be decorated, as illustrated by Figs. 3 and 8,
and is provided with an appropriate roller-die, as R or R2, having a peripheral face
which is either bevelled, as illustrated by Fig. 9, or bevelled and concaved, as illus-
trated by Fig. 10, according to whether the surface to be decorated is flat or flat
bevelled, or is of the more common "oval" convexity; the roller-die being further-
more properly proportioned to the diameters of the surface. A method of making
such roller-dies constitutes part of this invention, as hereinafter set forth.
The roller-die, R or R2, is now adjusted as to distance from the axis of revolution,
by moving the slide S and fastening it by its screws s. (Fig. 4,) and as to contact by
turning the die-holder D on its pivot d, and fastening it in position by means of said
bolt (Fig. 3) the work-holder W being adjusted meanwhile by means of the
tail-screw Y, Fig. 1, and held in position by tightening the clamp-screw X.
(Fig. 1.)
Finally, the operator shifts one or the other of the driving-belts, B1 B2 Fig. 1. upon
the fast pulley of the counter-shaft C, by moving the lever of the belt-shifter ;
causing the live-spindle A and face-plate to rotate, and the roller-die R or R² to
revolve around said axis of revolution. When a single revolution is completed, as
when the roller-die again reaches the bottom of the work-holder W, the lever bis
moved to the opposite extreme of its movement; bringing the other belt upon the
fast pulley, and instantly reversing the revolving movement. The roller-die is thus
readily caused to revolve back and forth in contact with the surface to be decorated,
and, being at all times free to rotate on it spindle, it transfers the design from its
face to the work with uniformity, and without in any way injuring the work, as
hereinbefore set forth.
The third part of this invention is illustrated on Sheet 4 of the accompanying
drawings, and consists of the before-mentioned method of making roller-dies for the
successful and artistic transfer of hand-engraving to watch-case backs and caps in

page_text: www
TESCITUOLL
moumicaCIONIS
equivalents
thereof.
To carry this part of the invention into effect, take a sample or pattern watch-case
back or cap, as represented at J¹ Fig. 11, and lay out upon its outer face by concentric
circles, a', 61, an annular surface, or it may be a segment or segments of an annulus,
of appropriate or pleasing proportions, to be decorated. On a convex or oval back
or cap the circles a¹ should in all cases be concentric with the back or cap. On flat
surfaces they may be eccentric if preferred.
Then select or produce a cylindrical blank, K, Fig. 12, of soft steel, of a convenient
length, having an axial bore, a¹, and an outer diameter that is a given aliquot
fraction of the outer circle a¹, say one-half, which is the proportion represented in
the drawings.
Then make a diagram, as illustrated by Fig. 13, with an outer circle, a², a corre-
sponding fraction (one-half) of said outer circle a¹, and an inner circle, 62, a like'
fraction (one-half) of the inner circle ; draw parallel lines, a³, 63, from the
respective circles a² 62, and draw an intersecting line, c, at right angles to said
lines a³ ³ then with a radius equal to the full width between the lines ab on the
pattern J, and with centers at the intersections of said lines a³ ³ and C, draw arcs, d³,
intersecting said lines 63, and from the intersections last named to the centers of the
ares draw straight lines, e³, which represent exactly the "bevel," e, required on the
roller-die; the diameter of said circle 62 being the smaller diameter of the peripheral
face-portion, 2, of the finished roller-die, (R Fig. 17,) as that of said circle a² is its
larger diameter.
27
If the surface to be decorated is flat or a flat bevel, said bevel et is simply repro-
duced on the periphery of the blank K, as represented at K2 Fig. 14, by a "turning"
operation. The more common "oval" convexity of watch-case backs and caps
requires a corresponding concavity in the peripheral face of the roller-dic, as repre-
sented in full lines at K³, Fig. 15; and the roller-die may he turned at once to the
required"
concave hevel" with the aid of a templet cut to the bevel e¹, and then
concaved to fit the back or cap.
The peripheral face f2, so conformed to the surface to be decorated, must now be
engraved or otherwise provided with a cameo or intaglio counterpart of the desired
design or of that repeated portion of the design appropriate to the corresponding
portion of the annular surface between the pattern lines a' Fig. 11, as represented
at K, Fig. 16.
Then cut away the smaller end of the blank K³, as represented at = Fig. 17, up to
the near margin of the design, which may be suitably escalloped as shown, or
straight, or so shaped as to fit around an escutcheon or the like of any preferred out-
line. It may be so cut away by a milling or filing operation.
Then harden the roller-die, which is now complete, as represented at R Fig. 17,
and ready to transfer the design to any number of watch-case backs or caps having
surfaces to be decorated of the size and shape represented by the pattern (Ji Fig. 11)
as illustrated by the dotted fragment of a contiguous watch-case back at J Fig. 17.
The roller-die may be engraved by hand, or the design may preferably be trans-
ferred to it, as illustrated by Fig. 18, in connection with Figs. 15 to 17. According
to this method, an anvil-die, Q, Fig. 18, is made from a blank of soft steel, which is
turned to a diameter equal to that of the pattern back or cap.), and its circular
top, Q', is then shaped, with the aid of a templet, so as to bear a positive counterpart
of the surface to be decorated. Supposing this surface to be a complete annulus, as
indicated in Fig. 11 by the space between the lines a' and ', a little more than the
adopted fraction (one-half in the example) of the circumference of the die-top Q¹ is
now hand-engraved just as it is to appear on the watch-case, and the die Q is then
hardened; after which the design may be transferred to any number of roller-die blanks
proportioned and conformed to the same pattern back or cap, as represented at K³
Fig. 15, by rolling such roller-die blanks under pressure back and forth from end
to end of said engraved portion of the die-top, until the design is raised or sunk on
the roller-die blank to the required extent. This may be done in the machine above

page_text: set forth, by fastening the anvil-die Q to the tail-stock spindle Z by a suitable center-
ing chuck, and mounting the roller-die blank K³ on the die-spindle P, (Figs. 1 &c.,)
or with the aid of any mechanical appliance whereby the face of the roller-die blank
may be kept at the required distance from the axis of revolution, while the inclined
roller-die axis is kept in a plane radial to said axis of revolution. The same is true
as to the transfer of the design from the roller-die to the backs or caps.
Instead of one-half, the proportion of the diameters of the roller-dies to those of
an annular surface to be decorated may be one-third or one-fourth, the formula
illustrated by Fig. 13 being correspondingly modified; and the design may in some
cases be transferred to the dic-top Q' from a roller-die previously engraved and
hardened, as in providing for raised designs on the watch-case back or cap.
engraving the same design on a roller-die and an anvil-die, and transferring from each,
it can be reproduced on the backs or caps either raised or sunken as may be
preferred.
By
The concluding part of this invention is represented on Sheet 6 of the drawings, in
connection with Sheet 1, and consists of the before-mentioned lathe-attachments or
machine elements whereby a lathe or special machine is adapted to decorate watch-
case centers according to the method first described.
Referring to Figs. 19 to 24 inclusive on Sheet 6, as already described, F represents
a small circular face-plate adapted to be substituted for the one shown at F in Fig. 1,
Sheet 1, on the live-spindle A of the lathe L, for example; T represents a fragment
of the tail-stock shown in said Fig. 1, and Z represents the outer end of its recessed
dead-spindle."
Said face-plate F carries a guide-plate, G², having on its face a
straight radial
guide-rib, a slide, S2, working on said guide-rib, and a die-holder, D², pivoted in a
slotted and perforated projection, s², on the face of said slide S2, which parts are
substantially identical with those shown at G S and D on Sheets 1 to 4 inclusive, as
before described, except that the guide-plate G² is provided on its face at one end with
a swivel projection, g', the corresponding end of the slide S2 is provided with a screw-
socket, ¹, and a flanged feed-screw, S¹, is fitted to said swivel and socket, and
terminates at its end opposite the socket in an angular head, h, so as to be operated
by a wrench or key. A hand-wheel, ², may be formed on or attached to the screw S¹
instead of said head h, and a counterbalance, O, may be attached to the face-plate F
diametrically opposite said guide-plate G2, as shown in dotted lines in Fig. 19; and
other like modifications will suggest themselves to machinists.
The office of said feed-screw S is to draw or press the roller-die R³ against the
peripheral surface to be decorated on the "center" J³; and any suitable mechanical
device, operated by hand or otherwise, may be employed for this purpose.
The roller-die, R³, is a loose wheel of hardened steel having its periphery conformed
to the cross-section of the center, as represented in Fig. 19, whatever the shape may
be, and provided in reverse with the desired design, or preferably with an aliquot
fraction of the design adapted to be repeated continuously. It is mounted by means
of a pintle, Q, Fig. 21, in a swivel-housing, P2, which has a stem, p², Fig. 21, fitted
to said socket e, Fig. 19, perpendicular to the end-surface E of the die-holder D.
Said stem p² is fitted to said socket e rather snugly, but so that the housing may readily
turn a little in adjusting the roller-die to the center.
The center, J³, is held during the decorating operation by a work-holder, W2, shown
detached by Figs. 23 and 24, having a shank, w, fitted to the axial socket of the dead-
spindle Z of the tail-stock T, and which may be identical with the spindle of the work-
holder W shown on Sheets 1 to 4 inclusive, as before described. The other parts of
said work-holder W2 (Sheet 6) are a circular form-piece or hub, w', screwed upon the
outer end of the shank, a flat circular cap, w, and an axial screw, to; the latter
passing through central holes in said hub and cap into a screw socket in the outer end
of the shank w, as shown in Fig. 19, and serving to clamp the center J³ between the
perimeter of the cap w and a stepped peripheral seat, Is, the latter formed on the
hub w, concentric with the spindle w, and with the dead-spindle Z, and fitted to
the interior of the center.

page_text: With the guide-plates G2 in its lowermost position, as represented in Fig. 19, and the
slide S² lowered thereon below the working position represented in said figure, the
die-holder D2 is turned, if need be, on its pivot d, and fastened in vertical position by
its clamp-bolt d². The housing P2, provided with a suitable roller-din R³ for the work
in hand, is then adjusted upon said end-surface E of the die-holder, so that the ends
of the roller-die are parallel with the face-plate F³. The work-holder W², having a
watch-case center J³ fastened therein as above described, is now adjusted by means of
the tail-screw Y, Fig. 1, through the medium of the dead-spindle Z, until the
"center" J is exactly above the roller-die R³. The roller-die is then elevated, by
means of the feed-screw S1, through the medium of the slide S* die-holder D2 and
housing P2, until the peripliery of the roller-die is pressed hard against that of the
center. The live-spindle (A) is then actuated as before described with reference to
Fig. 1, and, through the medium of said parts F2 G² S² D² P2 and Q, the roller-die
is caused to revolve back and forth in contact with the surface to be decorated, until
the design is raised or sunk to the required extent. Meanwhile, at each reversal
of the revolving motion, the guide-plate G2 being then preferably in its lowermost
position, as shown in Fig. 19, the feed-screw S¹ receives a part turn so as to again
press the roller-die tightly against the work.
When a center is finished, the roller-die is lowered by means of the feed-screw S¹,
a fresh center is substituted for the decorated one in the work-holder; and thus the
work may proceed until any required number of centers of a given size and shape
have been decorated by one and the same roller-die.
Roller-dies appropriate to each size and shape of centers to be decorated will be
employed, as also for different designs; and the hub w' of the work-holder W2
must be changed for different sizes of centers. Otherwise all the parts of said
holder W2, together with the die-holder D² housing P2 and pintle Q, may be
employed for decorating centers of any size and shape; and with the spindle P
(Fig. 7) substituted for said housing P² on said end-surface E, or inserted in the
socket e² of the adjoining surface E2, and provided with a suitable roller-die, R
or R2, and with the die-holder D2 properly adjusted, as illustrated by Figs. 3
and 8, and the hub and caps of the work-holder W (Figs. 5 and 6) substituted
for the hub cap and screw of said work-holder W2, the same lathe-attachments, or a
special machine embodying the same principles, is adapted for. decorating watch-case
backs and caps in the manner before described.
Having now particularly described and ascertained the nature of my said Inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
1. In the decoration of annular circular or segmental surfaces on watch-case backs
caps or centers, the process of keeping the work stationary and transferring a hand-
engraved design thereto by means of a roller-dic pressed against the work, revolved
around the axial center of the surface to be decorated, either continuously or back and
forth, and rotating freely on its own axis.
2. Reversing the principal motion at the completion of each revolution, in the
transfer of annular or circular designs to watch-case backs caps or centers by means
of roller-dies, for the purpose set forth.
"
3. Transferring annular designs to watch-case backs or caps, by means of roller-
dies as above, after the "joints are put on such backs or caps, so that the brilliant
original color of the decoration may be preserved.
4. A machine for decorating annular or segmental surfaces on watch-case backs and
caps by means of roller-dies, in the manner claimed under 1 above, substantially as
above described with reference to Figs. 1 to 10 inclusive, or any mere modification
thereof.
5. The method of proportioning roller-dies for the decoration of annular or
segmental surfaces on watch-case backs or caps substantially as above described with
reference to Figs. 11 to 15 inclusive.
6. The method of transferring band-engraved designs to roller-dies, for decorating

page_text: annular or segmental surfaces on watch-case backs or caps, substantially as above
described with reference to Figs. 15 to 18 inclusive.
7. A machine for decorating watch-case centers by means of roller-dies, in the
manner claimed under 1 above, substantially as above described with reference to
Figs. 19 to 24 inclusive, or any mere modification thereof.
8. Lathe-attachments adapted for the decoration of watch-case centers, and also,
alternatively, for the decoration of watch-case backs and caps, by means of roller-dies,
in the manner claimed under 1 above, substantially as above described with reference
to Figs. 19 to 24 inclusive of the annexed drawings.
Dated this Fifteenth day of April 1890.
FELL & WILDING,
Agents for the Applicant.