Improvements in Alarms for use with the Valves of Fire- extinguishing Apparatus.
Year: 1890

page_text: Date of Application, 28th Feb., 1890
Complete Specification Left, 28th Nov., 1890-Accepted, 24th Jan., 1891
PROVISIONAL SPECIFICATION.
Improvements in Alarms for use with the Valves of Fire-
extinguishing Apparatus.
SAMUEL WALKER, Machinist Radcliffe and GEORGE MILLS Engineer Radcliffe,
both in the County of Lancaster do hereby declare the nature of this invention to
be as follows :-
In connection with stop valves generally used in water mains or water pipes
connected with fire apparatus & specially for automatic sprinkler installations where
it is necessary to indicate by alarms which we do by placing a separate alarm inde-
pendent of the alarm now generally used which is actuated by water, these special
alarms each one separate being an electrical alarm & a steam alarm, the electrical
alarm being worked by a pair of small bevil wheels one wheel being placed upon the
valve spindle & the other wheel working into this wheel being secured on the end of a
screw spindle which spindle works in a registering bracket, on this screw spindle is a
brass finger registering at what position the valve is whether opened or closed, as
this finger is at the point registering the valve full opened comes in contact with the
electrical stopper & presses this down preventing the electrical apparatus for an aların
coming in operation. When the valve is being closed the wheels then works the screw
spindle & causes the finger to be removed from off the electrical stopper which brings
then the electrical alarm in full operation. The steam aların works precisely in the same
way up to the point when the finger comes in contact with the electrical stopper,
instead of the finger coming in contact with the electrical stopper comes (precisely in
the same position) in contact with a lever which is fixed at the back of the registering
bracket with a spring or weight attached at one end & the other end to a lever
connecting the steam whistle. When the valve is full opened the fingers keep lifted
the lever at the back preventing thereby the steam whistle or alarm from operating.
When the valve is being closed the wheels then works the screw spindle & causes
the finger to be relieved from the lever when the spring or weight draws this down
by which the steam whistle or alarm is then brought in operation.
L 1
ATAL
1000
SAML. WALKER.
GEORGE MILLS.
COMPLETE SPECIFICATION.
Improvements in Alarms for use with the Valves of Fire-
extinguishing Apparatus.
☐ SAMUEL WALKER Engineer Eagle & Atlas Works Radcliffe, GEORGE MILLS
Engineer Uplands View Whitefield late of Irwell Street Radcliffe, 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 :-
In connection with stop valves generally used in water mains or water pipes
connected with fire apparatus and particularly for automatic sprinkler installations,
it is necessary to indicate by alarms whether the main stop valve is closed or only
partially opened.
The invention provides for two separate and distinct alarms altogether independent
of the alarmn which is actuated by water now generally used, the two alarms each
one separate being an electrical alarm and steam alarm.
The electrical alarm is worked in the following manner-
On the spindle working the valve is fixed a small bevil wheel working into

page_text: The particular method of attachment to the steam whistle by the slightest movement
of the valve spindle.
Dated this 27th day of November 1800.
SAML. WALKER.
GEORGE MILLS.