Year: 1887

page_text: I, HALVOR HALVORSEN of 130 Rue Lafayette Paris, in the Republic of France
Inventor, 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 :-
The foregoing invention relates to improvements that can be applied to clocks
which go in any position, and are not effected if moved about, and they can also be
applied to those kind of clocks which only perform their duty when in a certain
position.
This new kind of mechanism is represented on the accompanying drawing as applied
to a wall clock, with weight.
Figure 1 is a front view of the clock with the dial plate removed, and the bridge
pieces left out, the striking works and mechanism connected therewith are supposed
to be in the position, when the clock has struck twelve.
Figure 2 is the same view of the clock works, the striking works supposed to be in
the position at an hour later, that is, just as the clock is about to strike one.
Figure 3 is a partial side view of the clock seen from A.
Figure 4 a similar view seen from B.
Figure 5 a plan view of Figures 3 and 4.
Figure 6 spiral formed toothed disc for governing the hour strokes.
In the following specification the entire clock mechanism, which sets in motion the
main spindle of the minute wheel, is supposed to be known, and under which is
comprised the weight hanging on cord a, the spring box b with the usual ratchet
wheel, ratchets and ratchet springs, the system of cog wheels gearing into one
another, and pinions which multiply the motion and transfer the power of the gearing
on the escapement, which consists of the verge and palette back again onto the main
wheel pinion and main spindle. The main spindle marked with c on the drawing
carries, immediately at the outside of front plate D, the cog wheel e which is provided
with a pin f and revolves with the main spindle. The prolonged main spindle carries
immediately by the bridge g serving as a support for it, a second wheel / which,
sitting fast on the sleeve h², turns loosely around the axle or main spindle c, and gears
Din Q27

page_text: into the pinion k, which is supported by its pivot k¹ in the bridge i, Figures 1 and 4,
on the one side, and in the front plate d on the other side. Cog wheel e completes a
revolution in one hour; the cog wheel 1 sitting fast on arbor ³, and gearing with e
also does the same, whilst the movement and revolution of his dependent on the
number of the pin wheel hereafter described. On the same arbor there is moreover
also seated a pin wheel m, which, however, as shown, is only in part furnished with
pins with 12 for the twelve hour strokes, whilst the action of the clock and the
entire mechanism requires a space of 4 pins or cylinders to be left, so that the
toothed arc n can return unimpeded. The before mentioned main spindle also carries
besides the spur wheel h fitting on the sleeve or tube h¹, a spirally-formed toothed
disc p also fitting on h¹, and which forms a substantial part of the foregoing
invention. The same will be hereafter explained in detail. The entire mechanism
hitherto described, which I designate with the name going train stands in connection
with the striking train by means of an arc n n¹ provided with teeth at two different
parts. As regards the minute and hour hands themselves, the former is fast on the
square o, and is in connection with the main spindle, that is, with the minute wheel;
the latter, on the contrary, sits fast on the tube h', and also moves uniformly with
the spur wheel, and the spirally-formed toothed disc p. The double toothed arc is.
provided at each portion with 12 tooth and is journalled by means of arms q¹ on the
pin q. It carries at its front end a weight s fastened to a strong curved wire r. The
upper portion n² of the toothed are gears into a pinion u fixed tight on the arbor in
bridge t' and in front plate d, whilst the loose ratchet wheel e, revolving on the same
arbor, is carried along with the pinion u in the direction of the arrow by means of
pawl w and pawl spring w¹. A revolution of the pinion u is effected by the spring o
which, when the toothed arc n is liberated, depresses the toothed are n connected
therewith. To the under part of the arm g¹ a strong bar x is fixed which, following
the motions of the toothed arc, takes into or is lifted out of the teeth of the disc p.
On an arbor y also journalled in bridge t¹ and front plate d, rests the balanced
hammer z whose pins 21 and 22 engage with the teeth of the ratchet wheel v when it
is liberated, and cause it to revolve regularly. Hammer z consists of the upper part 2³
and the lower curved weighted arm 2. The arm 23 carries the flat spring a¹ fastened
therein, and furnished with the striker or clapper a² that strikes against the spiral
clock spring c, which is fastened to the sound board 6', at the to and fro movement
caused by the motion of the ratchet wheel v. Under the simultaneous influence of
the elastic return stroke of the striker a² and of the weight d', situated beneath the
hammer and under the influence also, of the further notion of the ratchet wheel v,
the beater is caused to strike on the watch spring c¹, and it strikes as many times as
the teeth of the toothed rod n¹ can return. The gradations of the hour striking
governing disc correspond each with one portion of the tooth rod n. For the clock
to work the pin D fixed tight in the front plate, has yet to be mentioned, against
which a somewhat curved rod, journalled in E, can rest. F is held in this state of
rest by means of a stretched spiral spring fastened at one end to pin G, and at the
other to the short lever end of the rod F.
WORKING OF THE CLOCK; THAT IS, OF THE GOING AND STRIKING TRAINS.
The minute wheel e making, under the influence of the main spindle c, one
revolution per hour, takes, by the position of the pin shown in Figure 2, from
whence it starts, the position shortly before one o'clock, almost perpendicular to the
main spindle. If the minute wheel turns a little further in the direction of the arrow,
the rod F, under the further yielding of the spring H will be lifted out of the holding,
and supporting point for the rod, formed by the nose n², arm q' then sinks under the
influence of the weights and sets in motion, by means of the toothed are n, the
pinion u and ratchet wheel v, and with this, the hammer z. The number of beats on
the spring, or what is the same, the sinking of the toothed arc, is here caused by the
position of the rod which, in the present case, rests, as soon as a tooth of the
toothed arm n¹ has sunken, on the surface of the opposing tooth of the spiral disc p,

page_text: and thus prevents a further depression of n. It then strikes one o'clock. The rod F
has, during the sinking of q' or n taken a position above the nose n² (Figures 1 and 5)
and slides so long upon the edge of the nose until under the influence, that is the
revolution, of the cog wheels e, h, and of the pin wheel m, the depressed toothed arc n
is again raised, or the distance of the rod x from the tooth 2 of the spiral disc is the
double of that shown in Figure 2; at which moment, rod F is again under nose n²,
and is raised from here when pin f has been carried along with minute wheel e into
the position shown in Figure 2. As a further explanation, the distance of the
surfaces a-B, B-Y, Y-8, etcetera, from the rod x in the highest position of the
same, must each agree with the corresponding number of hours; that is, the number
of strokes is limited by the corresponding surfaces of the spiral formed dise p. The
revolution of the pin wheel m is also equal to one revolution per hour, like that of the
cog wheels e and h, because after the sunken teeth of the arc n have risen, there are
no more teeth presented to pin wheel m, whilst after the elevation of the last tooth,
rod Flies under the nose n², and holds fast the tooth bar n, after which the
pin wheel m can easily slip past the same.
The foregoing invention fills up a hitherto existing gap in the make of clocks, that
is, the convenient handling of the same, whilst by this means also the striking train
can be driven by means of the power developer of the going train, and in a simple
and safely acting manner. Also, if for any cause whatever, the striking works
should not act, that would not hinder a regular going of the going train.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what I
claim is
In clocks of all kinds
1. The combination of the striking train with the dial and going train in such
manner that only one winding mechanism is employed, whilst the striking train is
driven from the going train by means of suitable connections.
2. In clocks with the characteristics in claim 1, the combination of a spiral-formed
disc p arranged on the prolonged main spindle c of the wheel work, with an arm g',
which bears a bifurcated toothed arc n n¹, a rod x and a weights, and whereby the
toothed arc n gearing into a pin wheel m, with 16 divisions, but only 12 pins, elevates
the toothed are n', whilst n', in constant gear with pinion u, swings the hammer z,
when it is sinking and the ratchet wheel is simultaneously revolving, so that with
its beater the number of hours is struck on the clock spring resting on a sound
board.
3. The arrangement of the rod F in conjunction with the pin fapplied to the
minute wheel e for the object of freeing the arm at the right time.
4. The application of a hammer z provided with elastic striker a² and balanced by
weight d¹.
5. In the hammer z with the characteristics in claim 4, the arrangement of two
projecting pins alternately gearing into ratchet wheel v, whereby the upper
spring part of the hammer provided with striker a² strikes against the spring c¹
under partial influence of the ratchet wheel and of the weight d¹ fastened to the
under part of the hammer.
2 A
1 1000
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool,
Agents for the Applicant.