Tell-tale Indicator for Electric Mast-head and Side Lights of Ships.
Year: 1898

page_text: Date of Application, 6th June, 1898
Complete Specification Left, 6th Mar., 1899-Accepted, 8th Apr., 1899
PROVISIONAL SPECIFICATION.
Tell-tale Indicator for Electric Mast-head and Side Lights of Ships.
I, ALBERT RICHMOND TURNER, Electrical Department, Leven Shipyard, Dum-
barton, in the County of Dumbarton, Electrical Engineer, do hereby declare the
nature of this invention to be as follows:-
-
This invention has for its object to provide an improved tell-tale indicator in
connection with electric mast-head and side lights of ships for indicating that the
signal lamp is alight or that the current thereto has been broken.
Under the invention the current to the signal light is made to pass through a
solenoid or induction coil to the poles of which an aimature or core 18 attached
which upon the current being switched on attracts the core or armature, this
movement being used to actuate a small two way switch upon a shunt circuit,
which as long as the signal lamp is alight keeps a lamp in the tell-tale indicator
alight, thus showing that the signal lamp is alight also. Upon the current to
the signal lamp being broken from any cause such as the lamp being burned out
or broken, the armature or cole 18 released and the shunt cucuit 18 switched
through a high resistance bell, which will continue to ring until the signal lamp
is renewed or the switch turned off One switch only 18 used to put on the signal
light, the two way switch is actuated automatically by the flowing current
A tell-tale lamp of much higher voltage than the ships voltage is used which
ensures a practically everlasting lamp for the tell-tale It also prevents all undue
glare which is very objectionable to the man steering the vessel With one of
these indicators fitted any number of tell-tale lamps can cheaply be fitted and
worked from the original indicator containing the above arrangement, the
additional indicators requiring the lamps only to be fitted.
loted this 4th day of June 1808
WALLACE FAIRWEATHER,
Of the Firm of Cruikshank & Fairweather,
Chartered Patent Agents, 62, Saint Vincent Street, Glasgow,
Agent for the Applicant.
Tell-tale Indicator for Electric Mast-head and Side Lights of Ships.
I, ALBERT RICHMOND TURNER, Electrical Department, Leven Shipyard, Dum-
barton, in the County of Dumbarton, Electrical Engineer, 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 has for its object to provide an improved tell-tale indicator in
connection with electric mast-head and side lights of ships for indicating that the
signal lamp is alight or that the current thereto has been bioken.

page_text: The invention is illustrated by the accompanying drawings, Figure 1 being a
front elevation, and Figure 2 a side elevation of a tell-tale indicator having tell-
tale lamps for port, starboard and mast-head lights, the cover of the apparatus
being removed in both views for the sake of clearness.
Under the invention the current to the signal light, which light is not shewn
on the drawings, is made to pass through a solenoid or induction coil B, near
to the poles of which an armature C is attached which upon the current being
switched on attracts the armature C, this movement being used to actuate a
small two-way switch 1) upon a shunt circuit E, which as long as the signal lamp
18 alight keeps a lamp A in the tell-tale indicator alight, thus showing that the
signal lamp is alight also Upon the current to the signal lamp being broken
from any cause such as the lamp being burned out or broken, the armature C is
released and the shunt circuit E is switched through a high resistance bell F', which
will continue to ring until the signal lamp 18 renewed or the switch G turned off
One switch Gonly is used to put on the signal lamp, the two-way switch is actuated
automatically by the flowing current
A tell-tale lamp of much higher voltage than the ships voltage is used which
ensures a practically everlasting lamp for the tell-tale It also prevents all undue
With one of
glare which is very objectionable to the man steering the vessel
these indicators fitted any number of tell-tale lamps can cheaply be fitted and
worked from the original indicator containing the above arrangement, the
additional indicators requiring the lamps only to be fitted
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 18:
A tell-tale indicator for electric mast-head and side lights of ships constructed
and arranged to operate substantially as described
Dated this 4th day of March 1909
ated
WALLACE FAIRWEATHER,
Of the Fum of Cruikshank & Fairweather
Chartered Patent Agents, 62, Saint Vincent Street, Glasgow,
Agent for the Applicant.