Year: 1886

page_text: Date of Application, 15th Oct., 1886.
Complete Left, 2nd Feb., 1887
Complete Accepted, 4th Mar., 1887
FRANCIS VERNON SMYTHE of 13 South Hill Gravesend in the County of Kent
England Mercantile Employé do hereby declare the nature of this invention to be as
follows:-
The invention consists of an extinguisher made of metal or other substance shaped
to cover or extinguish the top of the burner and wick-to it is attached a lever working
vertically on a horizontal pin inside the lamp cone or dome-the end of the lever
projects through the exterior casing of the burner and is connected by a chain, cord,
or other coupling led upwards through a hole in the centre of the cup to a weighty
ball resting therein-The cup in which the ball rests is fixed on the outside of the
exterior casing of the burner and immediately above the lever forming a lead for the
coupling as well as a rest for the ball-it is so shaped that upon the lamp being inclined
beyond a certain angle in any direction the ball rolls out and its weight by pulling
upon the coupling raises the lever and forces the extinguisher on to the top of the
burner and wick thereby extinguishing the flame.

page_text: I, FRANCIS VERNON SMYTHE of 13 South Hill, Gravesend in the county of Kent,
England, Mercantile Employé, 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 object of this invention is to arrange a cup and ball appliance, said ball being
in connection with a weighted or other arm of an extinguisher that should the lamp
be tilted beyond a given angle or upset by accident or other cause, the ball shall leave
the cup and act as a weight or drag upon the extinguisher lever to move the
extinguisher over the wick, and also over the wick tube, if desired, and put out the
light. The action of the ball is automatic and by its connection with a small length
of cord or chain when it is released from the cup, the extinguisher is kept on or over
the wick until replaced by hand, or until the ball is replaced, the extinguisher then
taking up its normal position by means of counterpoise on the arm or lever.
The annexed drawings illustrate my invention, Figure 1 showing the ball or weight a
in the cup, the extinguisher c being in its normal position by the counterpoise d on
its lever e this being of bell crank shape supported by a horizontal pin and arranged
inside the burner lamp cone or dome g. h is a cord, chain, or other coupling connecting
the ball a to the lever e, said lever projecting through the exterior or casing. The
cord or chain passes through a hole in the centre bottom of the eup so that when the
ball falls out of the cup b such as by a tilting, the chain or cord is drawn through into
the position shown in Figure 2 and effectively operates the extinguisher c. The
cup in which the ball a rests is fixed on the outside of the exterior casing i of the
burner and immediately above the lever e forming a lead for the coupling or cord as
well as a rest for the ball as above mentioned. The ball can roll out of the cup without
reference to the direction of tilt or fall of the lamp, and its weight, by pulling upon
the coupling whether the lamp be upset or not, is sufficient to move the extinguisher
over the wick and extinguish the flame.
For ordinary extinguishing purposes by hand, the ball has only to be lifted from
the cup and dropped over the side edge.
Having now particularly described and ascertained the nature of this invention and
in what manner the same is to be performed I declare that what I claim is :-
1. The apparatus for effecting an automatic extinguishing of a lamp flame as above
described and substantially as shown in the annexed drawings.
2. In connection with an extinguishing appliance the cup 6 supporting the ball a
and having a hole at its centre for the free movement of a chain or cord which
connects the ball to the extinguisher lever e, as and for the purpose described.