Year: 1887

page_text: Date of Application, 24th Oct., 1887
Specification Accepted, 20th Apr., 1888
We WILLIAM HENRY EDWARDS of Gladstone Road Gravelly Hill in the County
of Warwick Manager and CHARLES BRITTON of 57 New Street Aston New Town
Birmingham in the said County of Warwick Manufacturer 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 :-
This Invention relates to devices for operating the Lamp Wicks and has for its
object the easier and more certain adjustment of the wicks of Safety and other Lamps
than by means ordinarily in use.
In Safety Lamps constructed in accordance with this Invention to burn colza or
other oils with a flat wick we construct the devices for operating the wicks as follows.
The burner is made as usual with a spindle carrying the usual pinion for raising and
lowering the wick-This spindle instead of being continued to the outside of the
lamp and actuated directly by a milled head or button (an arrangement which is
inadmissable in a Miners Safety Lamp) is geared by means of a worm wheel and
screw the latter carried by or formed upon a vertical spindle passing downwards
through the oil reservoir and actuated by a milled head or button underneath the said
reservoir.
The Invention will now be described with reference to the accompanying drawings.
Fig. 1. is a vertical section of the base of a Safety Lamp shewing the mode of
applying the new devices.
Fig. 2. shews, the method of applying this Invention to a Bicycle or other
Lamp.
A. Fig. 1. is the oil reservoir of a Safety Lamp of any ordinary construction.
B. is the burner with the wick tube b to take by preference a flat wick for burning
colza or other oils. 22 are the pinions for raising or lowering the wicks mounted
upon the spindle 63. This spindle is operated by the worm wheel 6* fixed upon the
said spindle. C is a vertical spindle carrying at its upper end the screw or worm c
and enclosed in the tubular casing c passing downwards through the oil reservoir.
The spindle revolves within the collars or bearings c³ ³ as shewn. Underneath the

page_text: reservoir is mounted upon the spindle the milled head or button c by which with the
thumb and finger the spindle 3 worm wheel and pinions 22 the wick is easily
raised or lowered with the greatest case and nicety of adjustment.
As shewn in figure 1 the burner or wick holder may easily be removed by turning
it a portion of a revolution, by which the worm wheel 6 is disengaged from the worm
or screw, the slot or recess D allowing of this movement and it is locked again by
the stud or pin d when replaced. The burner is fitted with the bent wire arrange-
ment E. carried in tube e for snuffing or cleaning the wick when required by means
of the handle e².
These devices for operating Lamp wicks besides being applicable to Miners Safety
Lamps generally are also applicable to Bicycle, carriage ship, domestic; or other
Lamps which are liable to disturbance by shaking or jerks, as the wick spindle is
thereby held securely in position and is capable of a fine adjustment. F. F. figure 2.
shews the side of the lower part of a bicycle lamp case and f.. is the bell and lense
attached to the front which is hinged to open as usual. G. is the oil reservoir and g.
the burner with flat wick tube g². The spindle g³ is mounted as shewn and carries
the pinions for raising and lowering the wick. This spindle is prolonged as usual
and carries the worm wheel H. 1. is a spindle carrying the worm or screw
gearing with the worm wheel and mounted in suitable bearing or bearings affixed
to the side of the case. A portion of the bearing may be made to act as a spring
clip on this spindle as a further security against disturbance. The spindle I. is
operated by the thumb head 3 rivetted on the end.
The application of these devices to coach domestic and other Lamps will be
readily understood by Lamp makers and it is obvious that the details may be varied
to suit any variety of Lamp without departing from the nature of the Invention
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed. we declare that what
we claim is.
First. The construction and use in connection with Miner's Safety and other
Lamps of a worm wheel and worm or screw, with spindles geared for operating
and regulating the wicks, substantially as, and for the purposes herein described and
set forth.
Secondly. Passing the spinille C of an operating worm c, through a casing or
sleeve c³, for the purpose substantially as set forth in figure 1.
Thirdly. Providing the operating spindle C of wick winder screws c, with top
and bottom bearings or shoulders c³, substantially as set forth in figure 1.
LALCU
6th day of February 1988.
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104
WILLIAM HENRY EDWARDS.
CHARLES BRITTON.
By Henry Skerrett,
Agent for Applicants.
WILLIAM HENRY EDWARDS.
CHARLES BRITTON.
By Henry Skerrett,
Agent for Applicants.