IMPROVEMENTS IN HYDRO CARBON OIL LAMPS AND APPARATUS CONNECTED THEREWITH
Year: 1879

page_text: LETTERS PATENT to Joseph Beverley Fenby, of Birmingham, in the County
of Warwick, Civil Engineer, for the Invention of "IMPROVEMENTS IN HYDRO
CARBON OIL LAMPS AND APPARATUS CONNECTED THEREWITH."
Sealed the 17th June 1879, and dated the 11th March 1879.
PROVISIONAL SPECIFICATION left by the said Joseph Beverley Fenby at
the Office of the Commissioners of Patents on the 11th March 1879.
JOSEPH BEVERLEY FENBY, of Birmingham, in the County of Warwick, Civil
Engineer. "IMPROVEMENTS IN HYDRO-CARBON OIL LAMPS AND APPARATUS CON-
NECTED THEREWITH."
My Invention consists in improvements in the means for raising and lowering
the wicks in duplex burner lamps, and in extinguishing the flames in such lamps
by mechanical stoppage of the draught. The object of my first improvement is
to effect the raising and lowering of both wicks simultaneously, or either wick
separately, by the action of a single external handle or knob. I effect this in the
following manner :-I make the two spindles of the wick winders shorter than in
the ordinary burners, and place on each spindle a small toothed wheel.. I place
slightly above or below the horizontal line of the wick winders a supplementary
spindle, having on it a small toothed wheel gearing with the toothed wheels on the
spindles of the wick winders. On the outer end of this supplementary spindle is
the handle or knob for actuating the wick winders. The inner end of this supple-
mentary spindle works in a bearing which is fixed, but in which the end of the
said spindle has a capability of a slight rocking motion. Near the handle or knob
the said spindle passes through a slotted bearing, which allows of the shifting of
the spindle to the right or left, so as to move the toothed wheel thereon out of
gear from either of the toothed wheels on the spindles of the wick winders. By
preference I fix a spring or springs to press the supplementary spindle into the
central position, in which its wheel is in gear with the two wick winder wheels.
If the supplementary spindle be merely turned while in this central position both
wicks will be raised or lowered simultaneously, but if a slight pressure be exerted
to one side or the other when turning the supplementary spindle only that wick

page_text: towards which the supplementary spindle is pressed will be raised or. lowered.
Friction gear may be substituted for the toothed wheels.
•
My extinguishing apparatus is made as follows:-I provide sliding tubes
working outside the wick tubes. To each sliding tube I attach flaps turning on
centres.
To the inside of each flap I attach a cylindrical or slightly eccentric segment,
which is caused to bear against the wick tube by a spring or other suitable means.
When the extinguisher tubes are caused to slide up or down on the wick tubes
these segments have a tendency to roll on the wick tubes, and so cause the flaps to
open or shut, according as the movement is up or down.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Joseph Beverley Fenby in the Great Seal Patent Office on the 11th
September 1879.
JOSEPH BEVERLEY FENBY, of Birmingham, in the County of Warwick, Civil
Engineer. "IMPROVEMENTS IN HYDRO-CARBON OIL LAMPS AND APPARATUS CON-
NECTED THEREWITH."
My Invention consists in improvements in the means for raising and lowering
the wicks in duplex burner lamps and in extinguishing the flames in such lamps by
mechanical stoppage of the draught. The object of my first improvement is to
affect the raising and lowering of both wicks simultaneously, or either wick
separately, by the action of a single external handle or knob. I effect this in the
following manner :-I make the two spindles of the wick winders shorter than in
the ordinary burners, and place on each spindle a small toothed wheel. I place
slightly above or below the horizontal line of the wick winders a supplementary
spindle, having on it a small toothed wheel gearing with the toothed wheels on the
spindles of the wick winders. On the outer end of this supplementary spindle is
the handle or knob for actuating the wick winders. The inuer end of this supple-
mentary spindle works in a bearing which is fixed, but in which the end of the
said spindle has a capability of a slight rocking motion. Near the handle or knob
the said spindle passes through a slotted bearing, which allows of the shifting of
the spindle to the right or left, so as to move the toothed wheel thereon out of gear
from either of the toothed wheels on the spindles of the wick winders. By
preference I fix a spring or springs to press the supplementary spindle into the
central position in which its wheel is in gear with the two wick winder wheels. If
the supplementary spindle be merely turned while in this central position both wicks
will be raised or lowered simultaneously, but if a slight pressure be exerted to one
side or the other when turning the supplementary spindle only that wick towards
which the supplementary spindle is pressed will be raised or lowered. Friction
gear may be substituted for the toothed wheels.
My extinguishing apparatus is made as follows:-I provide sliding tubes working
outside the wick tubes. To each sliding tube I attach flaps turning on centres.
To the inside of each flap I attach a cylindrical or slightly eccentric segment, which
is caused to bear against the wick tube by a spring or other suitable means. When
the extinguisher tubes are caused to slide up or down on the wick tubes these
segments have a tendency to roll on the wick tubes, and so cause the flaps to open
or shut, according as the movement is up or down.
Having thus described the nature and object of my said Invention I declare that
what I claim and desire to be secured to me by the hereinbefore recited Letters
Patent is,-
The general arrangement and combination of mechanism forming my improvements
in hydro carbon oil lamps and apparatus connected therewith, substantially as and
for the purposes herein before described or any mere modification thereof.
In witness whereof, I, the said Joseph Beverley Fenby, have hereunto set my
hand and seal, this Eleventh day of September, in the year of our Lord
One thousand eight hundred and seventy nine.