CERTAIN IMPROVEMENTS IN LAMPS AND LAMP WICKS, WHEREBY THEY ARE ADAPTED FOR MORE EFFECTIVELY BURNING ANIMAL, LINSEED, AND OTHER HEAVY, AND ALSO GLUTINOUS AND BITUMINOUS OILS AND OTHER BURNING FLUIDS EMPLOYED FOR ILLUMI- NATING PURPOSES
Year: 1861

page_text: PROVISIONAL SPECIFICATION left by George Roberts and Frederick
Lambe at the Office of the Commissioners of Patents, with their Petition,
on the 20th September 1861.
We, GEORGE ROBERTS, of No. 28, Bessborough Place, Pimlico, in the County
of Middlesex, and FREDERICK LAMBE, of Cushion Court, Old Broad Street, in
the City of London, do hereby declare the nature of the said Invention for
"CERTAIN IMPROVEMENTS IN LAMPS AND LAMP WICKS, WHEREBY THEY ARE ADAPTED
FOR MORE EFFECTIVELY BURNING ANIMAL, LINSEED, AND OTHER HEAVY, AND ALSO
GLUTINOUS AND BITUMINOUS OILS AND OTHER BURNING FLUIDS EMPLOYED FOR ILLUMI-
NATING PURPOSES," to be as follows:-
This Invention consists, first, in adapting certain wheelwork herein-after
described to an ordinary moderator lamp for the purpose of causing the wick
to be regularly raised as the oil or other burning fluid is consumed.
Secondly in making the surface of button deflectors perforated instead of
solid as heretofore, for the purpose of preventing the flame from lapping
over.
Thirdly, in constructing lamps intended to burn heavy oils, we propose to
form a slit or opening through the outside of the burner, and affix thereto a
duct or channel for carrying off the superfluous oil or other burning fluid and
returning same into the receiver, thereby preventing overflow and ignition at
the top of the burner.
Fourthly, in adapting to a vase lamp a tube fitted with a plunger operating

page_text: upon wheelwork for raising the wick as the oil or other burning fluid is con-
sumed as before stated, or instead of raising the wick as above stated the wick
may remain stationary, and a double or single sliding tube be lowered by
wheelwork so as to uncover the wick, thereby producing the same result as
by the former arrangement of raising the wick.
Fifthly, in perforating the burner above and below the glass holder for tho
purpose of admitting a current of air to the wick and letting it pass off outside
the burner, thereby throttling the upper part of the burner and preventing
explosion or backing of the flame.
Sixthly, in making the wicks of lamps in the following manner:-We take
several small plaited or twisted wicks, and connect them together in a circlo
by woft threads, leaving space between each. By thus forming wicks each
plait becomes a separato wick when burning, and turning outwards becomes
self-snuffing or trimming; these wicks may be prepared in the usual way.
The construction of the wheelwork before mentioned consists of an additional
wheel placed on the winding axis of an ordinary moderator lamp, said wheel
sliding thereon so as to bring same either into or out of gear with another
wheel or pinion attached to or in connection with the wick holder as required
by this arrangement. As the oil is consumed and the plunger which raised it
descends, the rack of said plunger imparts motion to the aforesaid wheelwork
and effects the raising of the wick as before stated. The above Invention may
be applied to every description of lamp.