IMPROVEMENTS IN HYDRO CARBON AND OTHER LAMP BURNERS
Year: 1879

page_text: LETTERS PATENT to Benjamin George Hall, of Wood Farm, Malvern Wells, in
the County of Worcester, Farmer, for the Invention of "IMPROVEMENTS IN
HYDRO CARBON AND OTHER LAMP BURNERS."
PROVISIONAL SPECIFICATION left by the said Benjamin George Hall at the
Office of the Commissioners of Patents on the 25th February 1879.
BENJAMIN GEORGE HALL, of Wood Farm, Malvern Wells, in the County of
Worcester, Farmer. "IMPROVEMENTS IN HYDRO CARBON AND OTHER LAMP
BURNERS."
This Invention of improvements in hydro carbon and other lamp burners has
reference to an arrangement of apparatus, by which the winding of the wicks of
duplex lamps, or lamps with two or more wicks, and producing two or more separate
flames are regulated, and which can be raised simultaneously, or one wick only
raised or lowered as desired, and with one winder only.
This is accomplished by either so arranging the ordinary spur wheels that are
used for the winding of the wicks that they work in gear one with the other, so
that when the handle attached to the one spindle is turned both cottons are raised
together or lowered together. But by pushing the winder inwards, the cogs attached
to that spindle are thrown out of gear with the cogs on the other spindle, and only
wind that one wick; but the moment the pressure is removed from the winder it is
forced back by a spring into its original position, and is again in gear with the spur
wheels on the other spindle for raising both wicks simultaneously. Or, if preferred,
the spring may be dispensed with, and the winder pushed out of gear, or drawn
into gear as desired.
Or by another method 1 fix the spur wheels on the spindles in the usual way, but
have the spindles of different lengths, and at the ends of the spindles I fix cog
wheels at such distance from each other that another cog on a spindle, to which is
attached the winder, may work between them in gear with both, and thus when
turned may raise or lower both wicks simultaneously.
But if the winder is pushed in it is thrown out of gear with the left hand spindle,
and winds the right band wick only; and if pulled out it is thrown out of gear
with the right hand spindle, and winds the left hand wick only, or vice versa, and
when released is again forced back by a spring at each end or drawn back into gear
with both, as at first.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Benjamin George Hall in the Great Seal Patent Office on the 25th
August 1879.
BENJAMIN GEORGE HALL, of Wood Farm, Malvern Wells, in the County of
Worcester, Farmer. "IMPROVEMENTS IN HYDRO-CARBON AND OTHER LAMP
BURNERS."
This Invention of improvements in hydro-carbon and other lamp burners has
reference to an arrangement of apparatus, by which the winding of the wicks of
duplex lamps, or lamps with two or more wicks, and producing two or more separato
flames, are regulated, and which can be raised simultaneously, or one wick only
raised or lowered as desired, and with one winder only.
This is accomplished by either so arranging the ordinary spur wheels that are
used for the winding of the wicks that they work in gear one with the other, so
that when the handle attached to the one spindle is turned, both cottons are raised
together or lowered together. But by pushing the winder inwards the cogs attached
to that spindle are thrown out of gear with the cogs on the other spindle, and only
wind that one wick; but the moment the pressure is removed from the winder it is
forced back by a spring into its original position, and is again in gear with the
wheels on the other spindle for raising both wicks simultaneously. Or, if preferred,
the spring may be dispensed with, and the winder pushed out of gear or drawn
into gear as described.
spur
Or by another method I fix the spur wheels on the spindles in the usual way, but
have the spindles of different lengths, and at the ends of the spindles I fix cog
wheels at such distance from each other that another cog on a spindle, to which is
attached the winder, may work between them in gear with both, and thus when
turned may raise or lower both wicks simultaneously.
But if the winder is pushed in it is thrown out of gear with the left hand spindle,
and winds the right hand wick only; and if pulled out it is thrown out of gear with
the right hand spindle, and winds the left hand wick only, or vice versa, and when
released is again forced back by a spring at each end, or drawn back into gear with
both, as at first.
And in order that my said Invention may be properly understood, I will describe
the same with reference to the annexed Drawings, where the same letters of reference
indicate similar parts in both the Figures.
Figure 1 is a plan view of a lamp shewing my improvements, and shows the
winding pinions a, a, and a¹, a¹, in gear with each other, which is their normal
position for elevating and depressing the two wicks c and d simultaneously.
Figure 2 shews another plan view, but in this case the pinions a, a, and a', a',
aro shewn out of gear with each other, or in the position for raising or lowering
the wick C only. The winding pinions a, a, and a¹, a¹, are respectively fixed to
the spindles a² and a*.
By pressing the button d at the end of the spindle a² the latter is moved longi-
tudinally, and the pinions a and a on this spindle are thrown out of gear with the
pinions a¹ and a' on the spindle a³. There is a small spring b, which acts against
the fixed collar c on the spindle a³, and so keeps the latter in the position shewn in
Fig. 1, or restores it to that position on the pressure from the hand on the button &
being removed.
Having thus described and particularly ascertained the nature and object of my
said Invention, I declare that what I claim and desire to be secured to me by the
hereinbefore in part recited Letters Patent is,―
The general arrangement and combination of mechanism by which the winding
of the wicks of duplex lamps or lamps with two or more wicks are regulated, and

page_text: which are raised simultaneously, or one wick only raised or lowered as desired, and
with one winder only, substantially as hereinbefore described and shewn on Draw-
ings, or any mere modification thereof.
In witness whereof, I, the said Benjamin George Hall, have hereunto set
my hand and seal, this 24th day of August, in the year of our Lord One
thousand eight hundred and seventy nine.
BENJAMIN GEORGE HALL. (LS)