Year: 1887

page_text: 1, HENNING HAMMARLUND, of Svängsta, in the Kingdom of Sweden Watch Maker
do hereby declare the nature of this invention and in what manner the same is to he
performed to be particularly described and ascertained in and by the following
statement:-
This invention relates to improvements in watches and mainly consists firstly in a
novel inode of winding up a watch, whereby, in place of turning the mainspring arbor
by means of a key according to the old method, or of winding up the mainspring
according to the more modern keyless system, the operator can by a single pull upon
a knob or button wind up the mainspring, which button is then returned to its normal
position, which is preferably the point heretofore occupied by the rotary stem-winding
button on the pendant.
For this purpose I provide a flexible strip which is normally coiled around the
mainspring barrel and provided at its outer end with the pull-button which will be
held in its backward position on the pendant, the strip being then in its coiled
condition. By drawing this button outwards and away from the watch, the flexible
strip can be uncoiled in such a manner as to rotate the barrel and consequently to
wind up the mainspring.
After the flexible strip has been drawn out to such an extent as to wind up the
mainspring, it is restored to its normally coiled condition within the watch preferably
by spring power, which said power can be obtained by forming the flexible winding
strip of spring metal so that the said strip besides being flexible to allow it to be
wound or coiled upon and unwound or uncoiled from the barrel, has sufficient inherent
elasticity to automatically restore it to its normally coiled or wound condition after it
has been drawn out and released.
The principal advantages obtained by the foregoing arrangement are case and
rapidity in winding: an absence of all wheels in the winding-mechanism (heretofore
from five to eight wheels have usually been employed) and consequently the risk of
breakage and wearing out of gearing heretofore incident to winding mechanism are
avoided the avoidance of any liability to disturb the regular working of the watch
by rocking or vibrating it during the operation of winding up the mainspring; the
avoidance of what is termed the "back-stroke" of the clickspring and mainspring

page_text: heretofore consequent upon each turn when winding not only weakening the same but
frequently causing the breaking of the mainspring, and the mainspring is wound up
by a steady pull. There are also other minor advantages which will be apparent to
those skilled in the art to which this invention relates.
My invention consists secondly in providing means whereby during the winding up
of the mainspring a winding indicator hand upon the dial face can be turned by the
rotation of the main spring barrel through the medium of an upwardly acting train of
gearing, and whereby during the running down of the mainspring the said indicator
hand can be turned from the mainspring arbor through the medium of a downwardly
acting train of gearing.
For this purpose I provide a rocker with a train of wheels which is driven from the
barrel during the rotation of the barrel in a direction to wind up the mainspring, and
another train of wheels which is driven from the mainspring arbor, the rocker being
shifted to place the first named train in connection with the spindle of the winding
indicator hand during the winding up of the mainspring and subsequently shifted to
place the other train in connection with the spindle of the winding indicator hand and
free the first named train from connection therewith as soon as the winding up action
ceases.
My invention consists thirdly in providing means whereby during the free running
down of the mainspring it shall serve in addition to its usual function, to maintain the
downwardly acting train of gearing in position to turn the indicator hand, while on
the other hand during the winding up of the mainspring the downwardly acting train
shall be automatically placed out of position for controlling the indicator hand and the
upwardly acting train automatically and simultaneously placed in position to control
the said indicator hand during the entire operation of winding up the mainspring.
For this purpose the rocker carrying the trains of gearing is by the action of the
main-spring shifted to normally place the downwardly acting train in connection with
the spindle of the winding indicator hand, while on the other band the barrel is
turned to wind up the mainspring during which winding action the force of the
mainspring normally exerted against the rocker is counteracted and a spring
controlling the rocker is allowed to shift the rocker in such a direction as to place the
upwardly acting train in engagement with the spindle of the winding indicator hand.
Among the principal objects of the two last mentioned features of my invention are,
that the winding indicator hand is caused to move continuously and steadily during
the unwinding or running down of the mainspring, and a like movement is effected in
a reverse direction on the part of the winding indicator hand during the winding up
of the main-spring, thereby indicating the condition of the mainspring with greater
certainty and nicety than can be attained by causing the winding indicator hand to
move intermittently or with a succession of impulses; further springs are dispensed.
with for controlling the movement of the winding indicator hand, and the latter is
operated by gearing having regular depths.
My invention consists fourthly in providing novel and improved means for allowing
of the regulation of the watch without opening the back cap, the principal object of
this being to avoid exposing the works when regulating the watch; to facilitate the
regulation thereof; and to allow of the regulation being effected with ease and
precision.
My invention consists fifthly in providing novel and improved means for setting
the hands; also in an improved construction of arbor for the centre-pinion the object
being to simplify the construction and arrangement; to dispense with idle wheels in
the motion, and to give free action thereto except during the operation of setting the
hands to provide an effective spring frictional contact of the arbor with the centre
pinion, and to attain other useful ends which will be apparent to the skilled watch-
maker. The invention further consists in certain details hereinafter more particularly
set forth.
In order to enable my invention to be fully understood I will describe how it can
be carried into practical effect by reference to the accompanying drawing in which
Figure 1 represents a plan view of one side of the under or dial plate (pillar plate)

page_text: which carries the watch mechanism and which is to be fitted within the centre of the
watch case, the side of the said plate represented in this figure being that whereon the
bridge-plate B is arranged. This figure also represents in dotted lines a portion of
the outline of the watch case and pendant.
The remaining figures are on a larger scale than figure 1 and are as follows:-
Figure 2 represents the opposite side of the dial plate A of figure 1, the winding
button shown in the said figure 1 being omitted, and the outer end of the hand setting
stem broken away for convenience of illustration.
Figure 3 is an enlarged detail representing a portion of the dial plate A and is
principally given to illustrate the regulating devices.
Figure 4 is a sectional detail taken on the line Z2, Z3, of figure 3 and shewing in
section, the rotary disc for actuating the regulating arm.
Figure 4*, is a detail showing a portion of the back-cap I, of a watch case with one
of the bosses of the regulating disc 35 exposed through an opening in the back-cap.
Figure 5 is a face view of a portion of the dial, serving to show the winding
indicator hand.
Figure 6 represents a section on the line Z, Z, of figure 2.
Figure 7 is an enlarged view of the arbor of the usual centre pinion.
Figure 8 represents one side of the dial plate A, with the bridge plate B, and the
usual works removed, this view being given to illustrate the handsetting stem K, and
the application of the winding strip F, to the mainspring barrel, which latter is shewn
in section on a plane parallel with the plane of the plate A.
Figure 9 represents a section through a portion of the plate A, figure 8, the section
being taken on the line Z, Z.
Figure 10 represents a section through the pendant and the pull-button for winding
up the watch.
Figure 11 is a detail representing in elevation a portion of the devices shewn in
figure 9, a small part only of the plate being shown in section.
Figure 12 is a detail section on the line Z, Z, of figure 1.
Figure 13 represents in elevation the perimeter of the barrel.
Figure 14 represents a section taken through the barrel on a plane at right angles
to its axis of rotation and includes the clickspring 2.
Figure 15 is a detail section on line Z2, Z3, of figure 3.
Figure 16 is a plan view of a portion of the underside of the bridge or bearing
piece 41, shown in figure 15.
Figure 17 shows the inner or pivotted end portion of the regulator arm 31.
Figure 18 is an enlarged sectional detail of a portion of the barrel, this view serving
to show in section a portion of the line of ratchet teeth 4 of the barrel E, and the
inner catch end of the winding strip or spring, a portion of the line of ratchet-
teeth 15 for the clickspring being included in this figure.
Figure 19 is a detail showing in section a portion of the lid or front-cap of a
hunting watch-case, the outer end of the handsetting stem being shewn in elevation.
A indicates the dial or pillar plate which carries the watch mechanism and which is
to be fitted within the centre of the watchcase as usual. This plate A, is provided at
one side with the upper or bridge plate B, and at its opposite side is covered by the
usual dial C, it being understood that the bridge plate B, will be covered by the back
cap as is customary in watches.
The mainspring D, is arranged within the barrel E (figure 6), and around the
arbor 1, which latter has one of its bearings in the bridge-plate B, and its opposite
bearing in the barrel, the inner end of the mainspring" being attached to the said
arbor, and its outer end being attached to the barrel as usual.
As a means for turning the barrel in order to wind up the main spring I provide
the winding spring F, arranged to normally lie in a coil around the barrel with its
inner end in engagement with the barrel, and its outer end extending tangentially
to the barrel and attached to a pull button 6 which is to be drawn or pulled out from
the pendant so as to temporarily uncoil the winding spring F, and in so doing turn
the barrel. After the pull button has been pulled out and away from the watch to an

page_text: extent to draw out a sufficient length of the winding spring F, the pull button can be
released by the operator, whereupon the winding spring, which has the same normal
bow as the barrel will instantly spring back into its original coiled condition around
the barrel. This re-coiling of the winding spring F, around the barrel will take place
notwithstanding the fact that the barrel is held against back rotation by the spring
pawl or click spring 2 (figure 14) such recoiling on the part of the winding spring F,
being permitted by causing its inner end to engage the barrel through the medium of
a hook or bevelled catch 3 (figure 18) secured to the inner end of the winding
spring F, and arranged to engage in a line of ratchet teeth 4, with which the barrel
is provided along its perimeter.
These teeth 4, upon the barrel and the bevel of the hook or catch 3, on the inner
end of the winding spring are arranged so that when the winding spring is drawn out
from the watch case, the catch will positively engage the said teeth on the barrel and
thereby cause the barrel to be turned to an extent proportional to the extent to which
the winding spring is drawn out from the case. But on the other hand, after the
winding spring has been thus drawn out and then released, the bevel side of the catch 3,
will ride back over the teeth 4, of the barrel, thereby permitting the retractive energy
of the winding spring to bring the said spring again into a coiled condition around the
barrel. As shown in figures 1 and 8, the winding spring lies in and is guided
by a channel 5 which is formed in the plate A and arranged tangential to the barrel.
The pull button 6, by which the winding spring can be drawn out for the purpose
of winding up the main-spring, is preferably connected with the winding spring by a
swivel joint to prevent accidental twisting of the winding spring. For this purpose
the outer terminal of the winding spring is secured to a stem 7 (figure 10) which has
on the other end a hole to receive another stem that goes through the pull button 6.
Should any one therefore mistaking the watch for a stem-winder turn the button,
no harm will be done to the winding spring, since the button will be free to turn
independently of the said spring.
The devices for indicating the extent to which the mainspring is wound up, and for
indicating at all times the condition of the main spring so as to show whether it has
run down or not, or to what extent it has run down, are as follows: Upon the face
of the watch dial is arranged an index-hand or pointer G (figure 5) which is used in
conjunction with an index 10 consisting of a circular row of figures. The pointing of
the oscillating index hand relates to the numerals serving of course to indicate the
different conditions of the main-spring. This index hand is turned in one direction
from the rotation of the barrel during the operation of winding up the main-spring,
while on the other hand, during the running down of the watch mechanism the said
hand is turned in a reverse direction through the medium of certain connections with
the arbor 1, to which the main-spring is attached.
To attain these ends I provide upon the dial side of the plate a rocker H, carrying
two separate sets or trains of gearing, one train, which I term the upward train, being
driven from the barrel, and the other (the downward train) being driven from the
arbor to which the inner end of the main-spring is attached, the said rocker being
arranged whereby it can be turned first one way to connect the upward train with a
gear wheel 11 on the spindle 12 of the winding indicator hand, and then turned in an
opposite direction to throw the downward train into gear with the said wheel 11 on
the spindle of the indicator hand.
The rocker H (see figures 2, 6, and 12) consists of a plate let into a recess 13 that
is formed in the dial-side of the plate A. The plate forming the rocker is approximately
of a segmental shape, and while the recess is of a corresponding contour it is made
somewhat larger than the rocker, as clearly shown in figure 2, in order to allow the
desired extent of oscillation on the part of the rocker.
The rocker is arranged to oscillate about the barrel E, for which purpose the barrel
has at one end a cylindrical boss 14 (figure 13) which is received in a recess formed
in the inner side of the rocker-plate H and partially indicated in figure 6. In this
connection it may be observed that the spring-pawl or click spring 2 which engages
a ratchet 15, on the barrel E, as in figure 14, is attached to the inner side of the

page_text: rocker H, as indicated by dotted lines in figure 2, and that the barrel has between its
said ratchet 15, and its ratchet 4, hereinbefore described, a smooth cylindrical
portion 16 (figure 13), which has a bearing in the plate A as will be understood by
reference to figure 6.
The upward train, whereby the winding indicator hand G, is turned in a direction
to indicate the winding up of the mainspring comprises a ring gear 17 (figure 2)
which is rigidly secured to one end of the barrel E, and arranged to engage a gear 18
which is mounted upon the rocker H, the piece 19, herein shown secured to the
rocker being practically a portion of the same and forming one of the bearings for the
spindle of the gear wheel 18. The spindle of the gear wheel 18, or the gear wheel
itself is provided with a small pinion 20, shown in dotted lines in figure 2 at the
back of or under the gear wheel 18, and in full lines in figure 12, which said pinion is
for the purpose of engaging the gear wheel 11 on the spindle 12 of the winding
indicator hand G when the rocker is in position for such purpose.
The downward train comprises a gear wheel 21, which is fixed on the square end of
the arbor 1 to which the inner end of the mainspring is attached, the said gear
wheel 21 being in engagement with a gear wheel 22, and the said gear wheel 22 in
engagement with a gear wheel 23 as illustrated in figure 2. The gear wheel 23 or its
spindle is provided with and rigidly connected to a pinion 24, which is at the
inner side of the gear wheel 23 as indicated in dotted lines, figure 2, and shown
in full lines in figure 12. The pinion 24 of this downward train is to engage
the gear wheel 11 on the winding indicator hand spindle alternately with the
pinion 20, of the upward train, for which purpose the two gear wheels 22 and 23 of
the downward train are mounted upon the rocker H, whereon the small bridge 25,
which is secured to the rocker by a screw 26, affords suitable bearings for one end of
each of the spindles of the said gear wheels 22 and 23.
The pinions 20 and 24, respectively of the two trains of gearing are set at such a
distance apart that the rocker can be turned one way to bring the pinion 20, of one
train in engagement with the gear-wheel 11, but throw the pinion 24, of the other
train out of engagement with the gear-wheel 11, after which the rocker can be turned
to throw the pinion out of engagement with the gear-wheel 11, but bring the pinion 24,
into engagement with the said gear-wheel 11, which has its spindle 12, journalled at
one end in the stationary plate A. with its opposite end journalled in and passing
through a bearing piece 27, which is fixed to the plate A, and over which the dial C,
is placed. It will be observed that the plate forming the rocker H, is cut away at
certain points to provide space for certain of the gear-wheels, as will be readily
understood without further description.
The adjustment of the rocker for alternately bringing one and the other of the two
trains into engagement with the gear-wheel that is fixed on the spindle of the winding
indicator hand G, is effected automatically. For this purpose I provide a spring 28,
which is secured within a recess in the plate A, and has a tendency to bring the rocker
into position to throw the pinion 20, into engagement with the gear-wheel 11, on
the winding indicator hand spindle, and thereby permit the said gear wheel 11, to
be actuated from the barrel during the operation of winding up the mainspring.
In drawing out the winding spring the pull thereof on the barrel will turn the latter
in a direction against the force of the mainspring D; consequently in thus opposing
and overcoming the resistance of the main-spring, the spring 28 will be left free to
throw the rocker into position to bring the pinion 20 of the upward train thereon into
engagement with the gear-wheel 11, of the winding indicator hand and thereby permit
the winding-indicator hand to be turned in a direction to indicate the extent to which
the main-spring is wound up. As soon however as the main spring has been wound
up and the operator has released the winding spring or permitted the same to retract
within the case, the force of the main spring will cause the rocker H, to move to the
farther extremity of its limited play, and thus permit the pinion 24, of the downward
train to be brought into engagement with the gear-wheel 11 on the winding indicator
hand spindle, thereby allowing the winding indicator hand to be turned from the
arbor in a direction to indicate the condition of the main-spring as it runs down.

page_text: The barrel gear-wheel 29 (figures 1 and 6) is arranged opposite one end of the
barrel but is independent of the barrel and secured by screws 30, to the arbor 1, to
which latter the inner end of the main-spring is attached. This barrel wheel 29, is
consequently driven by the mainspring and serves to move the train that is to be
driven from the main-spring, in the usual way.
The regulator arm 31 which is employed for adjusting the usual hair-spring 32, and
which engages the said hair-spring in the usual way is pivottally held at one end,
and at its opposite end bent inwardly or provided upon its inner side with a projection
for engaging in the spiral groove 33, that is formed in one of the sides or faces of a
pivotted disc 34, represented in figures 1, 3, and 4. This groove 33, commences
adjacent to the central portion of the disc and from thence runs outwardly from and
eccentric to the axis of the disc until at or near the circumference of the disc, at which
point the groove runs around the face of the disc concentric with the axis thereof.
By turning the disc 34, the regulator arm will be adjusted by reason of its engage-
ment with the spiral portion of the groove 33, in the said disc, the object of forming
the outer (and inner) portion of the groove 33, concentric with the axis of the disc
being to prevent the regulator arm from being adjusted either to an undue extent or
to an extent which might force it out of engagement with the regulating disc.
The regulating disc has a pivot or journal extending from each of its two sides or
faces, one of its said journals being adapted to turn in a bearing provided by the bridge
plate B, which as shown in figure 4, drops toward the plate A, and is formed so as to
afford a semi-circular seat or recess for the regulating disc, as illustrated in figure 4,
taken in connection with figure 1.
The other journal 35, of the regulating disc 34, is designed to extend into a hole
to be formed through the usual back cap at a point where the journal will be received
in such hole when the back cap is closed. In order to more effectually prevent dust
from entering at such point, the journal 35 of the regulating disc is provided with an
annular shoulder 36 (fig. 4) which, when the back-cap is closed will lio against the
inner face of the back-cap.
The outer end of the journal 35, which is thus visible through the back-cap, is
provided with a scale or circular index which will be used in conjunction with index 37
on the back-cap as in figure 4 wherein a small portion of the back-cap I is shown
with the scale upon the journal of the regulating dise visible through the same.
The journal 35 of the regulating disc can be provided with one or more holes 38
in which a pin or any convenient pointed instrument can be engaged for turning
the regulating disc without the necessity of opening the back-cap and exposing
the works of the watch.
As shown in figures 15, 16, & 17, the pivotal end of the regulator arm 31 is
provided with a split ring 39 which is fitted to turn in an annular groove 40 formed
in the inner side of the bridge-piece 41 that is secured to the plate A.
The hand setting stem K is arranged to work through the centre of the case and
over the upper or back-cap side of the plate A. This stem K is provided at its inner
end with a pinion 42 which engages in one of the two lines of gear teeth of the
minute wheel L, represented partly in full lines and partly in dotted lines in
figures 8 & 9 and in full lines in figure 11. When the hand setting stem K is drawn
out to a certain extent, as shown in figure 9, its pinion will engage in the annular line
of gear teeth 43 of the minute wheel L so that the stem K can be turned for the
purpose of operating the minute wheel. When however the hand-setting stem is
pushed in the pinion 42 on the stem K will be brought over about the centre of the minute
wheel so as to stand centrally within and free of the annular line of gear teeth 43.
The hand setting stem K is controlled by a catch or locking spring M (figs. 1, 9, & 11)
secured at one end to the plate A and arranged with its free end across the hand
setting stem at a point within the watch case. The plate A is provided with two fixed
studs or pins, 44 & 45, which rise from the plate and stand alongside the hand setting
stem adjacent to the place where the spring M crosses the said stem, and the said stem
is provided with a short tapered portion 47, the taper of the said portion of the hand
setting stem being towards its inner end. When the hand setting stem is at its inner

page_text: position so as to place the pinion 42 at its inner end free from engagement with the
upper annular line of gear teeth 43 of the minute wheel, the spring M will lie within
the notch formed by the aforesaid taper 46 and shoulder 47 of the hand setting stem,
as in figure 11, the spring in such case bearing against the shoulder 47 and thereby
serving to keep the band setting stem in its inner or back position.
When, however, the hand setting stem is drawn out so as to bring its pinion 42 into
engagement with the annular gear 43 of the minute wheel, as in figure 9, the
shoulder 47 acting against the spring M will draw the free end thereof over the
pin 45, the underside of the spring being bevelled, as shown, in order to permit it to
ride over the said pin during such operation. The spring, after riding over the
pin 45, drops between the the two pins, of which the pin 44 nearest the periphery of
the plate A serves as a stop for preventing further outward movement of the spring
and consequently for limiting the extent to which the hand setting stem can be drawn
out, while on the other hand the pin 45 prevents the spring from returning to its
normal position and allows the spring to keep the hand setting stem in its outer
position as long as may be necessary. After turning the stem K to the required
extent to properly set the hands, the stem can be pushed in or back to its inner or
back position, during which movement the inclined face of its tapered portion 46
acting against the bevelled under side of the spring M will lift the spring to an extent
to permit it to ride back over the stop pin 45.
With regard to the minute wheel L, it may be observed that its lower line of gear
teeth 18 engages the usual cannon-pinion 49 (see also figure 2) fixed on an arbor 50)
which carries the minute hand, the hour hand being carried on an hour-wheel which
turns on a cannon or sleeve of the cannon pinion in the usual way.
The usual centre pinion 51 is drilled through its centre for the passage of the
arbor 50, which said arbor is split as in figures & 7 so as to give it spring-frictional
contact with the centre pinion and at the same time permit the arbor to be readily
turned independently of the centre pinion for the purpose of setting the hands. It
will be understood that the centre pinion 51 is driven from the mainspring through
the usual or other suitable gearing, and that when so driven it carries with it the
arbor 50 as usual.
It may
also be observed that the small pinion 52 herein shown on the minute
wheel L is the pinion usually employed for moving the hour-wheel.
In order to avoid all liability of the hand setting stem being left in its outward
position after it has been drawn out and turned for setting the hands, I can provide a
safety device consisting of a catch or pin 52 (fig. 19) arranged in position on the edge
portion of the front cap N of the watch case to engage a bevel or taper 53 on the
hand setting stem when the stem is out and the cap is being closed, the said catch or
pin acting during the closing of the case to force back the hand setting stem.
In figure 2 I have shown a common form of stop wheel 54 serving to arrest the
rotation of the barrel at a time when in winding up the mainspring the latter has
been wound up to the proper tension. As indicated in dotted lines in the said figure,
the gear wheel 21 has on its underside a disc shaped boss provided at a point along its
periphery with a segmental notch. The gear wheel 21 is further provided on its
underside with a pin which stands back from the wheel at a point opposite the middle
of the segmental notch, as also indicated in dotted lines. It will be understood that
the rotation of the barrel or the arbor brings the radial arms or teeth of the stop
wheel successively into engagement with the pin, and in each instance the stop wheel
has a partial turn given to it except on the engagement with the pin of one particular
tooth formed as in the usual star wheel stop device, at which juncture the said tooth
cannot pass, the pin being stopped at the corner of the disc alongside the pin in the
usual way.
The winding spring F, hereinbefore described, serves, when drawn out by the pull-
button 6 simply as a flexible cord, strip, or band, which, being wound around the
barrel, serves when pulled out and unwound to rotate the barrel for the purpose of
winding up the mainspring.
As a provision for restoring such flexible strip to its normally coiled condition upon

page_text: the barrel, I preferably make it of spring metal and provide its inner end with a tooth
or hook 3, for engaging in a line of ratchet teeth around the barrel as hereinbefore
described. But I believe it is a novel feature of my invention to provide a watch
wherein the mainspring can be wound up by pulling out a strip or the like that is
coiled around the barrel, whether the restoration of such strip to its originally coiled
condition is effected by the inherent elasticity of the strip or by other means which
may suggest themselves to the skilful watchmaker. Therefore while I regard the
provision of a winding strip having an inherent spring force to restore it to its
normally wound condition upon the barrel after the winding has been effected, as a
part of my invention, I also desire it to be understood as covering the feature of a
flexible strip for winding up the main spring as aforesaid, whether the said strip
be recoiled by its own spring power or by a spring power which is an auxiliary to
the strip.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I claim is :-
1. In a watch the combination with the barrel and mainspring, of a flexible strip
coiled upon the barrel and having its outer end available to permit the strip to be
drawn out from the watch and uncoiled to an extent to turn the barrel and thereby
wind up the main-spring, substantially as described.
2. In a watch the combination with the barrel and mainspring, of the winding
spring applied substantially as described whereby it can be drawn out from the watch-
case and uncoiled to an extent to rotate the barrel and thereby wind up the main-
spring, and then released and permitted to resume its normally coiled condition upon
the barrel, substantially as set forth.
3. The combination with the main-spring and the indicator hand for indicating the
condition of the main-spring, of the rocker carrying two sets of gearing, the one set
being driven from the arbor of the mainspring, and the other set being driven from
the barrel, and a gear arranged upon the indicator hand spindle in position to be
alternately engaged by one and the other of the said two sets of gearing according to
the direction in which the rocker is shifted, whereby the winding indicator hand can
be operated from the barrel during the winding up of the mainspring, and then
operated from the arbor of the main-spring during the running down action of the
latter substantially as described.
a
4. The combination with the main-spring, the barrel and the winding indicator
hand, of the rocker H, carrying the two sets or trains of gearing one being the upward
train driven from the barrel, and the other the downward train driven from the arbor of
the main-spring a gear carried by the spindle of the winding indicator hand and in posi-
tion to be alternately engaged by one and the other of the said two trains of gearing,
spring M, tending to throw the rocker into position to bring the upward train into
engagement with the gear-wheel on the winding indicator hand, and the winding
spring for turning the barrel so as to wind up the main-spring and in so doing relieve
the rocker from the tension of the main-spring and permit the spring 28, to shift the
rocker, which latter when subject to the tension of the main-spring is shifted in an
opposite direction by the same, substantially as described.
3. The combination with the pivotted regulator arm for regulating the hair-spring
of the rotary disk provided with a spirally formed groove in which the pivotted
regulator arm engages, whereby, by turning the said disc, the regulator arm can be
adjusted, substantially as described.
6. The combination with the pivotted regulator arm for regulating the hair-spring,
of the rotary disc provided with a spirally-formed groove wherein the regulator arm
engages the said spirally grooved disc being provided with a boss 35, which is
received in an opening through the back cap when the latter is closed, substantially
as described.
7. The combination with the pivotted regulator arm for regulating the hair-spring,
of the rotary disc provided with a spiral groove wherein the regulator arm engages,
the said spirally-grooved rotary disc being provided with a boss 35, having on its outer

page_text: end a scale and holes which are visible through the back-cap when the latter is closed,
substantially as described.
8. The combination with the minute wheel, of the adjustable hand setting stem
provided at its inner end with a pinion which engages the minute wheel when the
said stem has been drawn outwards from the case and which stands clear of the
minute wheel when the said stem has been pushed back, substantially as described.
9. The combination with the minute wheel and the hand setting stem K, provided at
its inner end with a pinion for engaging and releasing the minute wheel according to
the position of the hand setting stem of a spring for normally maintaining the hand
setting stem in its back position free from the minute wheel and stop devices for
temporarily holding the hand setting stem in its outward or forward position in
engagement with the minute wheel, substantially as described.
10. The combination with the centre pinion by which the centre hand-carrying-
arbor is turned, of the centre hand-carrying-arbor 50, split longitudinally for a portion
of its length, substantially as and for the purpose described.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.