Improvements in or connected with Time Recording Apparatus for Consumption of Electric Current.
Year: 1895

page_text: Date of Application, 27th May, 1895
Complete Specification Left, 22nd Feb., 1896-Accepted, 27th May, 1896
PROVISIONAL SPECIFICATION.
Improvements in or connected with Time Recording Apparatus for
Consumption of Electric Current.
1, ROBERT WENDE, Manufacturer of Driesen, 4 Netz-strasse, Germany,
do hereby declare the nature of this invention to be as follows:-
:-
This invention consists of an apparatus which records the time during which an
electric current has been (or is) supplied from a central station to the place of
consumption.
The apparatus in question measures the time during which a current is supplied
from a central electrical station and consists of a disc which has two hollow spaces
arranged on its circumference. This disc is firmly coupled with the switch and
when the latter is turned so as to supply electric current, then the upper prolonga-
tion of the pendulum of a clock can oscillate freely in said notches or cavities,
whereas when the current is switched off, then the full or round part of the disc
arrests the pendulum. In addition to the above this apparatus is fitted with a
detent ratchet to prevent the disc being turned in an opposite sense to the motion
of the hands of the clock, and thus prevent the pendulum being stopped while
electric current is being supplied.
Dated this 25th day of May 1895.
ROBERT KRAYN,
Agent for Applicant.
Improvements in or connected with Time Recording Apparatus for
Consumption of Electric Current.
I, ROBERT WENDE of Driesen N. in the Empire of Germany, Conductor of
Electrical Works 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 stateinent :-
The object of this invention is to furnish an apparatus which will indicate, in the
simplest manner, the time during which an electrical current has been supplied
from the main station to the place of consumption.
The apparatus in question is shewn in the accompanying drawings, in
which :-
Fig. 1 is a partial sectional view, shewing the position when the current is not
in use.
Fig. 2 is a partial sectional view, shewing the position when the current is being
utilised or in operation.
On the shaft (a) which is pivoted on the rear partition and in the fork (d) is
placed a metal square (b). This square is provided on two of its opposite faces (c)
with india-rubber supports.
The sliding-contacts (e) which are connected with the conducting and deriving-
wires (f) press on opposite sides against the square.
1

page_text: By turning the square with the help of a key, so that the sliding-contacts may
rest on the faces (c') of the square, the circuit is established and the current
started.
To cut off the current, the square is turned in such a manner that the sliding-
contacts may rest on the india-rubber plates.
The clock-work is connected with this device, and it stops as soon as the current
is interrupted.
The stoppage is effected as follows:-
On the shaft (a) a disk (g) is fixed, and the latter has two semi-circular
incisions (). These incisions are formed on the side next the metallic surfaces (c')
whereas the full parts (m) of the disk are behind the faces furnished with india-
rubber.
In the path of this disk is an extension (h) of the pendulum, which allows the
movement of the clock-work, when it lies within the semi-circular incision (1) but
which stops the clock-work when it encounters any of the full or outwardly-
arched paits (m) of the disk, that is to say when one of these parts is at the
top. Consequently the clock-work acts only when the current is being utilised or
in operation.
It may be objected that when the sliding-contacts rest on the metallic surfaces,
it would be possible, by cautiously turning the shaft in the direction of the hand,
or pointer, of the clock, to stop the movement of the latter, and then by turning it
slowly back, the circuit could again be closed. To prevent such a fraud, I fix on
the shaft (a) a ratchet wheel (i) with which a pawl (k) mounted on the fork (d)
engages. This device renders any turning of the pointer, in a contrary direction,
impossible.
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. An apparatus to measure and indicate the time during which an electric
current is drawn from the main-station, distinguished by a disk (9) provided with
semi-circular incisions (1) and connected at a certain point with the device for
closing the circuit, the said disk being so arranged that, when the circuit is closed
the upper extension of the pendulum (%) of the clock-work mechanism can move
freely within the semi-circular incisions above referred to, whereas, when the
circuit is interrupted, the full, or outwardly-curved part (m) of the said disk stops
the pendulum.
2. In the apparatus described in Claim 1, the arrangement of a ratchet-wheel
and pawl, (i, k), intended to prevent the turning of the pointer of the clock in an
opposite direction and so stopping the pendulum while drawing, or utilising, the
electrical current.
Dated this 21st day of February 1896.
L. DUVINAGE,
Agent for Applicant.