relating to Time-meters for Telephonic Conversations.
Year: 1897

page_text: Date of Application, 28th Jan., 1897
Complete Specification Left, 23rd Nov., 1897-Accepted, 24th Dec., 1897
Improvements
PROVISIONAL SPECIFICATION.
relating to Time-meters for Telephonic
Conversations.
I, HERMANN KEIM of 11 Damenstiftstrasse, Munich, in the Empire of Germany,
watch-maker, do hereby declare the nature of this invention to be as follows.
This invention relates to a time-meter for telephonic conversations, which indicates
to the person speaking, by means of a bell-signal the passing of the time and allows
him to finish the conversation, before the allowed time of 3 5, 6, 9, 10 etc. minutes,
as the case may be, has passed. The arrangement is made in such a manner, that
by means of a simple lever-movement the signal arrangement can be adjusted from
three to five minutes and inversely and the clock-indicator can be moved back to
the zero-position from any part of the dial plate by pulling a string, in which back-
movement the clock-work is simultaneously wound up.
The whole clock work consists of a simple wheel-work with anchor escapement,
which operates at the same time also the striking-or signal-work. Upon the indicator-
shaft are two pin-disks coupled together, of which the one carries two pins and the
other carries three pins. The pins of the one or of the other disk operate the lever
which causes the striking of the bell-haminer. The lever is fixed on a shaft
displaceable in its longitudinal direction, on which shaft also the lever for the
hammer operates simultaneously. By displacing the shaft in its longitudinal direction
the lever can be brought from the reach of the pins of one disk into that of the pins
of the other disk or inversely. When the signal-work is to be operated before the
passing of every three minutes, the lever is adjusted on the pins of the second disk,
which latter operates the signal-work three times by one turn of the hand. Upon
the first disk however the lever is adjusted, when before the passing of every 5
minutes a bell-signal is to be given, as this disk operates the lever only twice at one
turn of the hand.
The moving of the shaft and thus the displacement of the lever can of course be
effected in different ways; for instance: on the back end of the shaft is fixed a disk,
which has a groove, which serves as guide for the loop of a vertical rod. At the under
part the rod is pivoted to a turning-lever and on the upper part it is bent obliquely
forwards over the clock-case. By turning the rod lever upwards or downwards, the
rod is raised or lowered.
When the rod is in the higher position, the aforesaid lever is in the reach. of the
second disk and every 3 minutes there is effected a disengaging of the signal-work;
when however the rod-lever and thereby the rod are pulled downwards, the aforesaid
lever is moved into the reach of the first disk, the oblique upper-part of the rod
slides on the clock-case and goes backwards and pulls thereby the shaft backwards.
Then the disengaging of the signal-work takes place only every 5 minutes.
In order to show the person speaking for what duration of conversation the signal-
work is adjusted and in which direction he must move the lever in order to adjust
the signal-work for three or five minutes, there are arranged on the two end positions
of the lever small plates with the corresponding indication of the time. The
movement of the lever is conveniently limited by a loop.

page_text: Instead of 2 or 3 pins there may of course also be arranged more or less pins on the
disks, according to the number of minutes arranged on the dial-plate and in case a
prolongation or abbreviation of the duration allowed for telephonic-conversations
should be effected.
On the back-end of the hand-axle, on which is also seated the spring, is fixed a
cord-disk, round which in the normal position of the work, that is, when the hand
after one turn has been stopped at the zero-position, the cord has been wound round
once. The hand is stopped at the zero-position after each turn by means of a pin of
the clock-case in connection with an arm of the cord-disk, the pin preventing the
latter arm and thus the disk and the hand-axle from going further. At the
beginning of the conversation one pulls the cord as far downwards as it can be pulled,
which causes a back turning of the handle and simultaneously the winding up of the
clock-spring. The pin limits again the movement of the disk since the arm of this
latter touches the pin from the other side.
T
T
1007
HERBERT HADDAN & Co
Agents to Applicant 18 Buckingham Street, Strand.
Improvements relating to Time-meters for Telephonic
Conversations.
I, HERMANN KEIM, of 11 Damenstiftstrasse, Munich, in the Empire of Germany,
Watch Maker, 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 a time meter for telephonic conversations, which indicates
to the person speaking by means of a bell-signal the passing of the time and allows
him to finish the conversation before the allowed time of 3, 5, 6, 9, 10 etc., minutes,
as the case may be, has passed. The arrangement is made in such a manner, that
by means of a simple lever movement the signal arrangement can be adjusted from
three to five minutes and inversely, and the clock indicator can be moved back to the
zero position from any part of the dial plate by pulling a string, in which back
movement the clock work is simultaneously wound up.
This new time meter is shown in the annexed drawing.
Fig. 1 is a front view.
Fig. 2 is.the back view of the clock work, and
Fig. 3 is a side view.
Figs. 4 and 5 show details.
The whole clock work consists of a simple wheel work with anchor escapement,
which operates at the same time also the striking or signal work. Upon the indicator
shaft are two pin disks a a¹ coupled together, of which the one a carries two pins b
and the other a¹ carries three pins b¹ (Figs. 3 and 4).
The pins of the one or of the other disk operate the lever c which causes the striking
of the bell hammer d. The lever c is fixed on a shaft e displaceable in its longitudinal
direction, on which shaft also the lever f for the hammer d operates simultaneously
(Figs. 2 and 3). By displaceing the shaft e in its longitudinal direction the lever
can be brought from the reach of the pins 6 of one disk into that of the pins 61 of the
other disk or inversely (see Figs. 3 and 5). When the signal work is to be operated
before the passing of every three minutes the lever c is adjusted on the pins of the
second disk a' which latter operates the signal work cf d three times by one turn of
the hand. Upon the first disk a however the lever c is adjusted, when before the

page_text: passing of every 5 minutes a bell signal is to be given, as this disk operates the lever
only twice at one turn of the hand.
The moving of the shaft e and thus the displacement of the lever c can of course
be effected in different ways; for instance on the back end of the shaft e is fixed a
disk g Fig. 5 which has a groove, which serves as a guide for the loop of a vertical
rod h Fig. 2. At the under part the rod h is pivoted to a turning lever i and on the
upper part it is bent obliquely forwards over the clock case Figs. 1 and 3. By turning
the lever i upwards or downwards, the rod h is raised or lowered.
When the rod h is in the higher position, the aforesaid lever c is in the reach of
the second disk a¹ and every 3 minutes there is effected a disengaging of the signal
work, when however the lever i and thereby the rod h are pulled downwards, the
aforesaid lever c is moved into the reach of the first disk a the oblique upper part of
the rod h slides on the clock case and goes backwards and pulls thereby the shaft e
backwards. Then the disengaging of the signal work takes place only every
5 minutes.
In order to show the person speaking for what duration of conversation the signa
work is adjusted and in which direction he must move the lever i in order to adjust
the signal work for three or five minutes, there are arranged on the two end positions
of the lever i small plates with the corresponding indication of the time. The
movement of the lever i is conveniently limited by a loop j.
Instead of 2 or 3 pins there may of course also be arranged more or less pins on
the disks a a¹ according to the number of minutes arranged on the dial plate and
in case a prolongation or abbrevation of the duration allowed for telephonic conversa-
tions should be effected.
On the back end of the hand axle, on which is also seated the spring, is fixed a
cord disk k round which in the normal position of the work, that is, when the hand
after one turn has been stopped at the zero position, the cord has been wound round
once. The hand is stopped at the zero-position after each turn by means of a pin m
of the clock case in connection with an arm n of the cord disk k, the pin m.
preventing the latter arm and thus the disk and the hand axle from going further.
At the beginning of the conversation one pulls the cord as far downwards as it can be
pulled, which causes a back turning of the handle and simultaneously the winding
up of the clock spring. The pin m limits again the movement of the disk k since
the arm n of this latter touches the pin from the other side.
Having now particularly described and ascertained the nature of this inven- .
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. An improved time meter for telephonic conversations, which indicates to the
person speaking the passing of the duration allowed for the conversation by means
of a bell signal the said meter having two pin disks a a¹ arranged on the hand axle
with different numbers of pins and with a lever c adjustable for the pins of the one
or the other disk, which lever is moved by the said pins and operates the signal
work f d.
2. The construction of the time meter substantially as illustrated and described
and for the purpose set forth.
Thaind this gond day of November 1907
HERBERT HADDAN & Co
Agents to Applicant.