Improvements in Petroleum Lamps.
Year: 1891

page_text: Date of Application, 15th July, 1891-Accepted, 12th Sept., 1891
COMPLETE SPECIFICATION.
Improvements in Petroleum Lamps.
I, ERNST HAECKEL of Reichenbergerstrasse, Berlin, in the German Empire,
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 has for object to facilitate the lighting, extinguishing, and cleaning
of petroleum and like lamps. It consists in mechanism respectively for raising and
lowering the burner cap and for lowering the wick.
Referring to the accompanying drawing
Figs. 1 and 2 shew the raising and lowering mechanism for the burner cap with
the latter in the lowered and raised positions.
Figs. 3, 4, 5, 6, are views of details of the said mechanism,
a is a crank and b a connecting rod, each of these parts has an eye c, c', furnished
with a tongue or tooth d, ; e is a pin or rivet for connecting together crank a and
connecting rod b. It has a longitudinal recess and a cross recess g.. The rivet
orifice of orank a and connecting rod b is in the form of about three fourths of an
open circle. Recess g is close under the bead of pin or rivet e and parallel to the
said head reaching in the other direction to about the middle of the length of the
shank of the pin or rivet. Upon passing this through eyes c, c', and clinching or
rivetting the end of the same, that lever part, the connecting rod 6 for instance,
which comes next to the head of pine may move upon it to the extent of about one
third of a circle whilst the other lever part is fixed stationary on the pin, d¹ at the
end of this movement either. backwards or forwards striking against an edge of
recess g. This is done when the burner cap is raised. It is thereby held firmly in
the raised position and can only be lowered by turning back the lever parts with
a key whilst a vertical pressure on the same would be received by an edge of
recess g.
The extinguishing mechanism by which the flame is immediately extinguished by
a rapid lowering of the wick is shewn in Figs. 7 to 14, Figs. 7 and 8 being respec-
tively a part sectional elevation and a plan of the same with a vertical toothed
rack arranged on the burner. Figs. 9 and 10 similar views of a lamp burner but
with a horizontal rack. Figs. 11, 12, separate views of racks,
In Figs. 7, 8, h is a toothed driving pinion fixed on spindle i of the wick driver.
The rack sliding up and down in guide is bent round at one end m this end
engaging in a slot of orank n fixed on orank spindle o. At p on the rack rod where
the teeth end, the thickness of the rod is so much loss as allows the teeth to stand
up clear therefrom so that when the plane part comes opposite driving pinion / the
two parts are out of gear, the rack therefore being stationary when the flame is
being regulated or the wick drawn in. q is a lever fixed on the outer end of crank
spindle.o. It has a cord or liner fixed to it upon pulling down which, crank n
will be operated so as to bring down rack k, the teeth of which then engage with
driving pinion which sets this and all the other driving wheels in rotation so that
the wick is rapidly drawn down deep into the burner and the flame extinguished.
Upon screwing up the lowered wick rack, & is again raised so far that the plane
part p of the same comes opposite driving pinion setting this out of connection
with the wick operating gear. To insure the rack remaining in this position
and prevent it descending by its own gravity the crank spindle is fitted with spiral
spring..
In the horizontal arrangement of rack (Figs. 9, 10) the driving pinion is fixed
on the same spindle as is used for raising and lowering the wick by hand. The
rack guide is located horizontally over driving pinion h and is extended outwards

page_text: from the burner casing in the form of a channel't for the reception of cord r. The
outer end of the channel part is bent round to a semicircular shape downwards.
In this case the rack is of the form shewn in Fig. 12 the plano part p being also
below the bottom of the teeth to allow of it being normally disengaged from
driving pinion h. It has an eye at one end for the reception of cord lying in
channel and hanging down from the end of same.
When drawn downward it will
draw with it rack horizontally over driving pinion setting this and therewith the
other wheels and wick driver in rapid rotation so that the wick is rapidly drawu
down deep into the burner and the flame extinguished. Upon screwing up the wick
the rack goes back to its previous position. Instead of driving pinion and rack, a
friction rod and friction wheel may be used.
•
Figs. 13 and 14'shew modifications of the extinguishing mechanism, in which this
is applied not to the burner but to the lamp reservoir. In the construction shown
in Fig. 13 the rack is vertical. Driving pinion h is fixed on spindle o.on which is
also fixed toothed wheel h¹ engaging in a second rack & provided with a finger ring
for drawing it down. In the construction shewn in Fig. 14 rack k' is replaced by
a toothed segment u engaging toothed wheel' v. The segment has a lever arm
which when pulled down through a cord or otherwise causes the lamp to bo
extinguished!
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
olnim is :
1. A mechanism for raising the burner cap of lamps in which the joint pin or
rivet orifices of a crank and connecting rod are provided with a tongue or tooth d, d
and are so in connection by means of a pin or rivet e provided with a corresponding
longitudinal recess and witli a cross recess g that the one of the tongues d takes
into the longitudinal recess and the other tongue d' into the cross recess for the
purpose of limiting the stroke of the burner cap, when this is raised or lowered, by
the tongue bearing against the edges or end' surfaces of the cross recess, substan-
tially as described with reference to Figs. 1 to 6 of the drawings.
2. A mechanism for extinguishing lamps consisting of driving pinion in con-
nection with the other wick driving gear and of a vertically or horizontally sliding
toothed rack or toothed segment u turning on a pivot which rack or segment stands
normally out of gear with the driving pinion but when the lamp is to be extinguished
is so moved through a hand cord that it comes into gear with the driving pinion and
by rapidly lowering the wick extinguishes the lamp, substantially as described with
reference to Figs. 7 to 14 of the drawings.
Dated this 15th day of July 1901
CAPITAINE & VON HERTLING,
89, Chancery Lane, London, W.C., Agents for the Applicant.