An Improved Striking and Repeating Mechanism for Clocks.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
An Improved Striking and Repeating Mechanism for Clocks.
I, JACOB JOSEF STEINER, of E.211, Ausseres Pfaffengässchen, Augsburg, in the
Empire of Germany, Merchant, do hereby declare the nature of this invention
to be as follows:-
This invention relates to clocks and has for its object a mechanism for striking the
quarters and repeating the hours in which no preliminary release takes place and
which repeats the striking of the hour if desired during a given time before the
quarter. The hour repeater at the quarter strokes and also the striking mechanism
may be thrown out of gear but the repetition may still be obtained by pulling a cord.
The quarter step disc is mounted on the arbor of the fingers together with an hour
step disc. A piece having four arms is also mounted on this arbor, to operate a drop
latch with its four arms. A star wheel is formed in one piece with the quarter step
disc or is firmly connected therewith, and is intended to engage with a second star
wheel situated below it. The latter is retained by a roller which is held between its
teeth by a lever under the impulse of a spring.
A toothed segment for the hours and a similar segment for the quarter hours are
formed on separate levers pivoted on a pin and each carries an arm by means of which
the fall of the segment is suitably limited to the position of the step disc. The
quarter hour segment rests, on the back of the drop latch and the hour segment on
a pin arranged on the same. The drop latch is pivoted and is always pressed
against the segment by means of a spring. This latch has on its front side a pin and
on its rear side two pins which by means of an arm enable the last quarter and hour
stroke to be made in the manner hereinafter described.
Between the drop latch and step disc is arranged a pivoted three armed lever with
one arin resting on a pin and itself carrying a pin with which the release of the
arrested hour segment takes place on the repetition. Another arm reaches to the
drop latch and operates the same for repetition, whilst a cord is attached to the third
arm by which a repetition may be brought about.
Another three armed lever is pivoted on the vertical arm of the other three armed
lever and is operated by means of the four armed piece engaging one of its arms and
influences the drop latch. A spring holds this lever in the correct position by
pressing on one of its arms. The third arm carries an elbow lever pivoted thereon.
One arm of this elbow lever has a projection which operates the drop latch by
engaging the pin of the same, whilst the other arm is operated by the lifting piece.
The lifting piece is mounted on an arbor and carries two pins or projections set
at 180° each of which lifts one of the segments. The front pin also operates the
elbow lever whilst the rearmost pin operating the quarter segment also engages a
pivoted lever.
In order to prevent the repetition of the hour at the first, second and third
quarters, a pivoted two armed lever is employed, one arm of which lever has the
shape of a hook. The hour segment is extended beyond its point of rotation and
has a pin at the end of this extension on which the hook of the said arm
engages and thus prevents the segment from dropping.

page_text: In order however on the striking of the four quarters to repeat the hour, this
stop arrangement is released by the other arm which is operated by pins on the
lower star wheel. This stop arrangement is also released by means of a pin on the
aforesaid three armed lever by pulling a cord attached to one of the arms of the latter
and parts are returned to the original condition by means of a spring. An elbowed
piece enables the two armed lever to be disconnected or thrown out of gear so that
at each quarter the hours are repeated. Another elbowed piece by raising the
elbow lever throws out of action the whole striking mechanism. One arm of said
lever being raised out of reach of the pin of the drop latch.
The drop latch is firmly mounted on its arbor on which between the frame plates
a forked arm for throwing out of gear the hammers which are not coming into
action is also firmly mounted. Each end of the fork has a pin one of which raises
the hour hammer and the other the quarter hammer (according to the position of the
step disc) out of reach of the pins operating the same, said pins being on an
intermediate wheel driving the flyer.
The hammers are fixed behind the second plate on arbors. By the rotation of
these arbors by means of arms mounted thereon which are engaged by push rods
which are displaced by the pins the hammers are raised, the said push rods resting
on a stud. The push rods of the quarter hammers have projecting arms which are
engaged by the pin of one arm of the fork aforesaid.
The mode of action of the striking mechanism is as follows:-
In proportion as the finger arbor rotates, the four armed piece mounted thereon is
turned until an arm of the same encounters the arm of the three armed lever. This
arm is pressed down causing the vertical arm to move to the left. The elbow lever
mounted on this arm is drawn back until the projection of its arm comes behind the
pin on the drop latch. As soon as the arm slides off the four armed piece, the spring
presses the three armed lever into its normal position and the arm of the elbow lever
raises or turns the drop latch and the toothed segments are free to drop. The fall of
the same is limited by the arms and the step discs. By this movement of the drop
latch, the arbor thereof is also turned and therewith the forked arm is raised so
that the end of the same comes out of reach of the flyer. The driving mechanism
for the striking mechanism is thus released and the lifting piece arbor is rotated.
As soon as the lifting piece commences to rotate the one pin or projection pushes
the one arm of the elbow lever to one side, thus raising the hook of the other arm
from off the pin of the drop latch and the latter drops back by means of
the spring until its front end bears on the quarter segment. The lifting piece by
means of its other pin raises the quarter segment which is held up in a raised position
by the end of the drop latch. After the last quarter stroke the drop latch falls
until the pin of the same bears against the hour segment. In order that the quarter
hammer may still be raised for striking after the lifting of the segment before the
push rods operating the drop latch are raised by the forked arm out of reach of the
pins operating them by the dropping forward of the latch and of the forked arm
which has dropped forward with the drop latch, the pivoted arm is employed against
which at this moment the pin on the drop latch strikes. If the quarter hammers are
raised the pin of the lifting piece raises the pivoted arm from the pin and the drop
.latch falls. The pin of the lifting piece then lifts the hour segment, which is held
up by the pin on the drop latch until this latter is also raised whilst at the last stroke
the pivoted lever in combination with the pin renders possible the raising of the
hammer for the last stroke. After the last stroke, the drop latch falls into its normal
position and the forked arm mounted on the arbor arrests the striking mechanism.
During this time the other three armed lever stands still or rather is held by the
spring against its support pin.
In order to throw the striking mechanism out of gear, the arm of the elbow leve
is raised by means of a pin mounted on the elbowed piece so that it is disengaged
from the pin of the drop latch and the latter can no longer rise therefor in order to
release the striking mechanism.

page_text: 'As is evident from the foregoing no preliminary releasing can take place in the
present striking mechanism. In order however during the repetition to obtain
always as far as possible a correct time, it is necessary that the striking mechanism
be so arranged that even five minutes before the full quarter this repetition takes
place. In order then that the quarter segments at the limit of two different quarters
shall not rest only partly on the step disc, the change from one quarter to another
which otherwise would take place in the previous releasing mechanism is effected
suddenly. For this object the quarter stop dise is loosely mounted on the finger
arbor. A star wheel in four parts is mounted on the rear side of the same which
engages with its rounded parts in an eight rayed star. This latter is held by means
of a spring mounted roller as before mentioned. A pin influenced by the arms of the
four armed piece is mounted on a step disc between two of the said arms. If then
the index arbor be rotated, the said piece operating the arm is revolved with it and
as soon as this piece comes to the pin it carries with it the step disc and the four
rayed star wheel. which is firmly connected with the step disc. The eight rayed star
wheel is however also rotated with the other star wheel and the roller raised out of
an interdental space. As soon as this roller has come half over the point of a tooth,
it is pushed forward entirely by means of a spring into the next space, that is to say,
the-star is moved a tooth further forward. By this piece however the other star
wheel and the step disc connected therewith are moved backwards to such an extent
that the step disc comes over the point on which the quarter segment drops.
This takes place five minutes before each quarter and replaces the preliminary
releasing.
As already mentioned, on the elbowed piece assuming a suitable position, the hook
of the pivoted two armed lever holds the hour segment fast so that it cannot drop
and the hours cannot be repeated. In order, in spite of this, to be able to repeat the
hours at every fourth quarter, it is necessary to release this stop mechanism. For
this object on the star wheel which makes a revolution every two hours there are
fixed two pins which bear against a projection of the other arin of said pivoted lever
and lift the latter so far that on the releasing of the striking mechanism the hook is
pushed aside by the pin and again returned by a spring into engagement with the
pin before the expiration of the next quarter. In order to enable the striking
mechanism to repeat, the cord attached to the arm of the other three armed lever
must be pulled. By this means the drop latch is raised by the arm of said lever so
that the segment may drop and the flyer be released. At the same time the pin of
the other arm raises the arin of the pivoted lever which eventually arrests the hour
segment so that at the repetition always the quarter and the hour are struck. This
quarter on its completion is not again repeated if about five minutes before the
quarter the striking mechanism be released by the repetition, because by the re-
Teasing by hand the one three armed lever is moved to the right whilst simultaneously
the other three armed lever goes with it and the arm of the latter comes out of
engagement with the four armned part. As however the spring places the said arın
horizontally, it remains out of engagement with the arm of the four armed part
releasing the quarter. In this manner it may happen that: the hour does not auto-
matically strike through more than 20 minutes.
In order to avoid this and to secure a striking every quarter of an hour im-
materially whether a repetition has been produced by hand or not the following
arrangement is employed.
In this arrangement two three armed levers are mounted at the same place, so
that the points of rotation or pivots coincide. Further, the arm of the elbow.lever
is provided with an elbow arm, the horizontal part of which has an acute angled
nick. With this nick a pin engages, said pin being mounted on a pivoted arm which
is returned to its normal position by means of a spring. If the arm of the one
three armed lever be depressed by means of an arm of the four armed piece,
the arm of the elbow lever will engage simultaneously with the engagement of
the projection in the pin of the drop latch and also the said elbowed arm with the
pin.

page_text: If then the striking mechanism be set in action by hand, the elbow lever will
return somewhat, but it is prevented by the pin from allowing the arm of the three
armed lever from coming out of engagement with the arm of the four armed piece.
By this means however a slipping off of the arm from the four armed piece on the
completion of the quarter, and therewith as a consequence the automatic striking, is
ensured.
According as the drop latch carries the segment or bears on the quarter or hour
segments the forked arm will stop the flyer or the pin on the fork will raise the hour
hammer push rod, or the other pin will raise the quarter hammer push rods out of
reach of the pins operating the same.
The pin wheel carrying the said operating pins is one of the transfer wheels
between the operating device of the striking mechanism and the flyer. The pins
press against the push rods lying out of reach of them and which rest on a pin,
through which push rods by means of arms the arbors carrying the hammers are
turned as herein before mentioned in order to raise or lift the hammers.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.
An Improved Striking and Repeating Mechanism for Clocks.
I, JACOB JOSEF STEINER, of E.211, Ausseres Pfaffengässchen, Augsburg, in the
Empire of Germany, Merchant, 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 relates to clocks and has for its object a mechanism for striking
the quarters and repeating the hours in which no preliminary release takes place
and which repeats the striking of the hour if desired during a given time before the
quarter. The hour repeater at the quarter strokes and also the striking mechanism
may be thrown out of gear, but the repetition may still be obtained by pulling a
cord.
This striking mechanism is shown in the accompanying drawings, in which
Figure 1 is a front view of the striking mechanism with the parts lying between
the plates omitted.
Figure 2 an elevation of the parts belonging to the striking mechanism between
the plates, the train of gear wheels between the barrel and the fly being however
omitted.
Figures 3 and 4 are details.
Figures 5-10 show diagrammatically the action of the separate parts of the
striking mechanism at different periods of time.
Figures 11-13 show an arrangement for securing a striking of the quarters in
spite of previous repetition by hand.
The quarter step disc b (Figures 1, 3 and 4) is mounted on the arbor a of the
fingers together with an hour step disc c. A piece d having four arms is also
mounted on this arbor, to operate a drop latch with its four arms. A star wheel e is
formed in one piece with the quarter step disc b or is firmly connected therewith,
and is intended to engage with a second star wheel f situated below it. The latter
is retained by a roller g which is held between its teeth by a lever under the impulse
of a spring g¹.
A toothed segment h for the hours and a similar segment i for the quarter hours
are formed on separate levers pivoted on a pin and each carries an arm h¹ and i¹

page_text: respectively by means of which the fall of the segment is suitably limited to the
position of the step disc. The quarter hour segment rest on the back of the drop
latch and the hour segment on a pin arranged on the same.
い
The drop latch lis
pivoted at 2 and is always pressed against the segment by means of a spring 13.
This latch has on its front side a pin and on its rear side two pins m¹ m² which
by means of an arm m enable the last quarter and hour stroke to be made in the
manner hereinafter described.
Between the drop latch and step disc is arranged pivoted at na three armed
lever (n¹ n² n³) with one arın n¹ resting on a pin nt and itself carrying a pin n³ with
which the release of the arrested hour segment takes place on the repetition. The
arm n² reaches to the drop latch and operates the same for repetition, whilst a cord
is attached to the third arm n³ by which cord a repetition may be brought
about.
Another three armed lever o¹ 02 03 is pivoted at o on the vertical arm n² of the
other three armed lever n¹ n² n³ and is operated by means of the four armed piece d
engaging one (o) of its arms and influences the drop latch 1. A spring of holds this
lever in the correct position by pressing on one (02) of its arms. The third arın o³
carries an elbow lever pl p2 pivoted thereon at the point p. One arin p of this elbow
lever has a projection which operates the drop latch by engaging the pin
same, whilst the other arm p² is operated by the lifting piece.
of the
The lifting piece or tappet is mounted on an arbor q and carries two pins or
projections q q2 set at 180° which when the striking mechanism is stopped have the
position shown in Figure 1, each of which lifts one of the segments. The front pin q¹
also operates the arm p² of the elbow lever p¹², whilst the rearmost pin q² operating ⚫
the quarter segment also engages a pivoted lever m.
In order to prevent the repetition of the hour at the first, second and third
quarters, a two armed lever 12 pivoted at r is employed, one arm of which lever
has the shape of a hook. The hour segment h is extended beyond its point of
rotation and has a pin h³ at the end of this extension h2 on which pin the hook of
the said arm engages and thus prevents the segment from dropping.
In order however on the striking of the four quarters to repeat the hour, this stop
arrange rent is released by the other arm which is operated by pins on the lower
star wheel. This stop arrangement is also released by means of a pin n on the
aforesaid three armed lever n¹ n²ns by pulling the cord attached to one of the arms of the
latter and parts are returned to the original condition by means of a spring 3. An
elbowed piece s enables the two armed lever to be disconnected or thrown out of
gear, Figure 1, so that at each quarter the hours are repeated. Another elbowed piece 8¹
by raising the elbow lever pl 22 throws out of action the whole striking mechanism.
One arm of said lever being raised out of reach of the pin of the drop
latch 1.
.
The drop latch is firmly mounted on its arbor 12 on which between the frame
plates a forked arm t¹ t2 Figure 2, for throwing out of gear the hammers which are
not coming into action is also firmly mounted. Each end of the fork has a pin, one
of which 3, raises the hour hammer push rod F and the other the quarter hammer
push rods yy (according to the position of the step disc) out of reach of the pins u
operating the same, said pins being on an intermediate wheel u¹ driving the fly v.
The hammers are fixed behind the second plate on arbors www². By the rotation
of these arbors by means of arms x x 2 mounted thereon which are engaged
by links or push rods y y¹ y² which are displaced by the pins the hammers are
raised, the said push rods resting on a stud t. The push rods of the quarter hammers
have projecting arms which are engaged by the pin of one arm of the fork
aforesaid.
The mode of action of the striking mechanism is as follows:-
In proportion as the finger arbor rotates, the four armed piece mounted thereon is
turned until an arm of the same encounters the arm o¹ of the three armed lever of 0² 03.
This arm is pressed down causing the vertical arm o³ to move to the left. The elbow
lever pl p² mounted on this arm is drawn back until the projection of its arm p¹ comes

page_text: behind the pin on the drop latch (Figure 5). As soon as the arm o¹ slides off the
four armed piece & the spring of presses the three armed lever 01 02 03 into its normal
position and the arm p¹ of the elbow lever raises or turns the drop latch (Figure 6)
and the toothed segments h and i are free to drop. The fall of the same is limited
by the arms h¹ and ¹ and the step discs b and c. By this movement of the drop
latch, the arbor 12 thereof is also turned and therewith the forked arın t¹² is raised so
that the end of the same comes out of reach of the fly v, thereby dropping the quarter
hour push rods y¹ y² & raising the hour hammer push rod y.
The driving
mechanism for the striking mechanism is thus released and the lifting piece arbor q
is rotated. As soon as the lifting piece or tappet commences to rotate, the one pin
or projection q pushes the one arm p² of the elbow lever to one side, thus raising the
hook of the other arm p¹ from off the pin of the drop latch and the latter drops
back by means of the spring 13 until its front end bears on the quarter segment i,
Figure 7. The lifting piece or tappet by means of its other pin q² raises the quarter
segment which is held up in a raised position by the end of the drop latch. After
the last quarter stroke the drop latch falls until the pin ¹ of the same bears against
the hour segment, Figure 8. In order that the quarter hammers may still be raised
for striking, after the lifting of the segment, before the push rods are raised' (by the
forked arm) out of reach of the pins operating them by the dropping forward of the
latch and of the forked arm tt2 (which has dropped forward with the drop latch,)
the pivoted arm m is employed, against which at this moment the pin m¹ on the drop
latch strikes. When the quarter hammers are raised, the pin q2 of the lifting piece
or tappet raises the pivoted arm m from the pin m¹ and the drop latch falls into the
position shown in Figure 8. The pin q of the lifting piece then lifts the hour
segment, which is held up by the pin on the drop latch until this latter is also
raised when at the last stroke the pivoted lever m in combination with the pin m²
renders possible the raising of the hammer for the last stroke. After the last stroke,
the drop latch falls into its normal position and the forked arin t¹t mounted on the
arbor arrests the striking mechanism. During this time the other three armed
lever n¹ n² n³ stands still or rather is held by the spring of against its support pin n*.
In order to throw the striking mechanism out of gear, the arm p¹ of the elbow
lever pl p² is raised by means of a pin mounted on the elbowed piece a¹ so that it is
disengaged from the pin of the drop latch and the latter can no longer rise therefor
in order to release the striking mechanism.
As is evident from the foregoing no preliminary releasing can takes place in the
present striking mechanism. In order however during the repetition to obtain
always as far as possible a correct time, it is necessary that the striking mechanism
be so arranged that even five minutes before the full quarter this striking takes place.
In order then that the quarter segment at the limit of two different quarters shall
not rest only partly on the step disc, the change from one quarter to another which
otherwise would take place in the previous releasing mechanism is effected suddenly.
For this object the quarter step disc b is loosely mounted on the finger arbor. A star
"wheel e in four parts (Figures 3 and 4) is mounted on the rear side of the same and
engages with its rounded parts in an eight rayed star f. This latter is held by means
of a spring mounted roller g as before mentioned. A pin el influenced by the arms
of the four armed piece d is mounted on the step disc between two of the said arms.
If then the index arbor a be rotated, the said piece d operating the arm o¹ is revolved
with it and as soon as this piece comes to the pin e¹ it carries with it the step disc b
and the four rayed star wheel e which is firmly connected with the step disc. The
eight rayed star wheel f is however also rotated with the other star wheel and the
roller g raised out of an interdental space. As soon as this roller has come half over
the point of a tooth, it is pushed forward entirely by means of a spring g¹ into the
next space, that is to say, the star f is moved a tooth further forward. By this piece
however the other star wheel e and the step disc b connected therewith are also noved
forwards to such an extent that the step disc comes over the point on which the
quarter segment drops. This takes place five minutes before each quarter and
*replaces the preliminary releasing.

page_text: As already mentioned, on the elbowed piece & assuming a suitable position, the
hook of the arin of the pivoted two armed lever holds the hour segment fast so that
it cannot drop and the hours cannot be struck. In order, in spite of this, to be able
to strike the hours at every fourth quarter, it is necessary to release this stop
mechanism. For this object on the star wheel f which makes a revolution every two
hours there are fixed two pins f (Figure 1) which bear against a projection of the
other arm of said pivoted lever and lift the latter so far that on the releasing of the
striking mechanism the hook r is pushed aside from the pin h³ and again returned
by a spring into engagement with the pin h³ before the expiration of the next
quarter. In order to enable the striking mechanism to repeat, the cord attached to
the arm n³ of the other three armed lever n' n² n³ must be pulled. By this means
the drop latch is raised by the arm n³ of said lever so that the segments may drop
and the fly be released. At the same time the pin n of the other arm n¹ raises the
arm of the pivoted lever which eventually arrests the hour segment so that at
the repetition always the quarter and the hour are struck. The quarter on its
completition is not again repeated, if about five minutes before the quarter the
striking mechanism be released by the repetition, because as shown in Figure 5, by
the releasing by hand the one three armed lever n¹n n³ is moved to the right whilst
simultaneously the other three armed lever o' o² o³ goes with it and the armi o' of the
latter comes out of engagement with the four armed part d. As however the spring o
places the said arın o horizontally, it remains out. of engagement with the arm of the
four arıned part d releasing the quarter. In this manner it may happen that the
hour does not automatically strike through more than 20 minutes.
In order to avoid this and to secure a striking every quarter of an hour immaterially
whether a repetition has been produced by hand or not the following arrangement
shown in Figures 11-13 is employed.
In this arrangement two three armed levers n' n² n³ and o¹ 02 03 are mounted at
the same place, so that the points of rotation or pivots n and o coincide. Further,
the arm pl of the elbow lever pl p² is provided with an elbow arm p³ the horizontal
part of which has an acute angled nick. With this nick a pin a³ engages, said pin
being mounted on an arm a² pivoted at a which arm is returned to its normal position
by means of a spring a'. If the arm o¹ of the one three armed lever 01 02 03 be
depressed by means of an arm of the four armed piece d the arm p¹ of the elbow
lever will engage in the pin of the drop latch and also the said elbowed arm p³
with the pin a, Figure 12.
If then the striking mechanism be set in action by hand, the elbow lever pl p² will
return somewhat, but it is prevented by the pin 3 from allowing the arm of of the
three arined lever o³ o² o³ from coming out of engagement with the arm of the four
armed piece d, Figure 13. By this means however a slipping off of the arm ol from
the four armed piece d on the completion of the quarter, and therewith as a
consequence the auto matic striking, is ensured.
According as the drop latch carries the segment or hears on the quarter or hour
segments, the forked arm t¹ 2 will stop the fly v Figure 2, or the pin 3 on the fork
will raise the hour hammer push rod y Figure 9, or the other pin t* will raise the
quarter hammer push rods y¹ y², Figure 10, out of reach of the pins u operating the
same.
The pin wheel u¹ carrying the said operating pins u is one of the transfer wheels
between the operating device of the striking mechanism and the fly. The pins u
press against the push rods lying in reach of them and which rest on a pin t
through which push rods, by means of arms xx²x², the arbors www carrying the
hammers are turned as herein before mentioned in order to raise or lift the
hammers.
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 T

page_text: characterised by the arrangement of a three armed lever (n¹ n² n³), one arm (n²) of
which carries another three armed lever (01 02 03), influenced by the arms of a
piece (d) mounted on the arbor of the fingers, by the operation of which flatter
three-armed lever (0¹ 02 0³) the arm (p¹) of an elbow lever (p¹ p²) mounted on same
lifts the drop latch (1) by its hook engaging on a pin (14) on the drop latch, so that
the toothed segments (h and i) held by the drop latch () or rather by a pin (¹)
mounted thereon are allowed to drop and simultaneously the fly is released by a forked
arm (2) mounted on the arbor (12) of the drop latch, substantially as herein before
described.
2. In a mechanism such as described for striking the quarters and repeating the
hours in clocks, the arrangement of a lever (p₁ p²) having one arm (p¹) provided
with a book to operate the drop latch and another arm (p2) adapted to be operated
by a pin or projection (q¹) carried by a lifting piece or tappet to lift the hooked arm
out of engagement with the pin (4) of the drop latch to stop the striking action by
raising the arm (p¹) out of reach of the said pin (4) of the drop latch, substantially
as described,
3. In a striking mechanism for clocks such as described, a forward adjustment of
the quarter hours step disc about 5 minutes before the quarter, characterised by a
star wheel (e) being firmly connected with the step disc (b) and loosely mounted.
with it on the arbor (a) of the fingers, said star wheel engaging with a second star
wheel (f) retained by a spring mounted roller (g) in such a way that as soon as the
piece () mounted on the arbor of the fingers has turned the step dise by means of
the pin (e) mounted thereon and the one star wheel (f) has been turned by means
of the other star wheel (e), so far that the roller (g) can snap into the next interval
between two teeth, the step disc is brought forwards with its step over the point
on which the arm (i¹) of the segment (i) for the quarters, strikes, substantially as
described.
4. In a mechanism for striking the quarters with repetition of the hours in clocks
such as described, the arrangement of a two armed lever (12) for arresting the
repetition of the hours, one arm (r) of which lever is hooked to engage a pin (h³)
on an. extension (2) of the hour segment (h) and hold the latter fast, which
stoppage may be removed by lifting the other arm (2) either by means of pins (1)
on the star wheel (f) which engage a projection of the arm (2) to allow of the
striking of the whole hours or by means of a pin (5) to allow of the repetition,
substantially as hereinbefore described.
5. In a striking mechanism such as described with repetition of the hours, the
arrangement of a three armed lever (n¹ n² n³) operated by a cord attached to one
arm (3) of said lever for repeating at will, which lever with its second arm (n²)
lifts the drop latch to drop the segment and when the hour repetition is arrested
releases the latter by means of a pin (5) mounted on its third arın (¹) substantially
as described.
6. In a mechanism such as described for striking the quarters with repetition of
the hours, a means for insuring the striking of each quarter immaterially whether
the mechanism has shortly before been operated by hand, consisting in mounting the
levers n n n³ and 01 02 03 on the same point of rotation and also providing an
arm (p³) on one arm p¹ of the elbow lever pl p2, said additional arm (p³) having an
acute angled notch in which a pin a³ mounted on an arm (a2) engages when the
point of the arm p₁ engages the pin (14) of the drop latch, which pin a³ on the
striking mechanism being released by hand, maintains the lever o¹ 02 03 in engage-
ment with one of the arms of the piece d by means of the elbow lever p¹² and its
additional arm (p³), substantially as described.
Dated this 4th day of November 1909
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.