Improvements in or relating to Lamp-burners.
Year: 1888

page_text: COMPLETE SPECIFICATION.
Improvements in or relating to Lamp-burners.
We, MAX GRAETZ and AUGUST KIESOW of 31, Lausitzer Strasse, Berlin, Germany,
Manufacturers 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 :-
Our invention has for its object to facilitate the trimming of the wicks and the
lighting of lamps; and our said invention consists of the construction and arrangement
hereinafter described of the parts of the said lamps, whereby the gallery carrying the
chimney and globe and dome or deflector of the lamp can be raised and held in the
raised position for trimming the wicks and for lighting the lamp without the removal
of the chimney and globe from the gallery, without separating or detaching any of the
parts of the lamp.
To the underside of the globe gallery is a ring fitted, to which are fastened two
racks which engage in two toothed pinions fastened to one common spindle passing
through the burner, this spindle is turned by the finger and thumb, by means of a
flattered end, this flattered end is made so as to be turned at right angles and to catch
on a projection fitted to the burner and so prevents its turning back of its own accord,
but it can be held by any other suitable means.
In order to lower the globe holder the thumb piece is released from its fastening,
when the globe holder descends by its own weight.
We will now proceed to describe with reference to the accompanying drawings the
manner in which our invention is to be performed.
Fig. 1, 2, 3 represent vertical sections of a lamp-burner constructed to our
invention.
Fio. 1 shows the globe holder in its normal or lower position.

page_text: In fig. 2 the gallery is represented raised from the burner for trimming the wicks
or lighting the lamp.
Fig. 3 the gallery is removed from the supporting ring.
Fig. 4 and 5 are top views of figs. 2 and 3 showing the raising handle and the
manner of locking the same in order to hold the gallery in its elevated position.
Fig. 6 is a view of the gallery or globe holder.
Fig. 7 is a sectional view through the line a ẞ of the gallery showing the bayonet
joint by which means, the gallery is fastened to ring b. Figs. 8 to 13 show modifica-
tions of the locking arrangement for holding the gallery in its elevated position.
a is the shade holder of the lamp which is fastened by means of a bayonet joint to
the ring b to which the racks c c are fastened. The racks c and c¹ are operated by two
thoothed pinions d d' on the shaft e. The said shafte has a thumb piece fat its outer
end which, when the pinions d d¹ have been turned sufficiently so as to raise the
racks c c into their highest position, can be turned to the side (as seen in fig. 5) and
rest against the projection g, and is thus prevented from turning back again.
The raising of the globe holder into the position fig. 2, for lighting the lamp or
trimming the wicks, is effected by turning the thumb piece f with the finger and
thumb, and the pinions d d¹ being fastened to the spindle e are made to revolve, and
the teeth of the same catching in the teeth of the racks e c¹ raise the same and with
them the ring b to which the globe holder is fastened.
In figs. 8 and 9 the shaft e is prevented from turning back by the ratchet wheel h
catching on the pawl i but on the pawl being released by the hand, the shaft e is
allowed to revolve and the globe holder to descend to its normal position.
In fig. 10 and 11 instead of the thumb piece being turned to the side as in figs. 4
and 5 the lever L which is hinged to the burner is turned over so as to lie under the
thumb piece, which is provided with a square shank and so prevents the turning of the
same figs. 12 and 13 show still another modification of the locking arrangement.
The lever m is held by a spring n always under the square shank of the thumb piece f
and so prevents the same from turning, but when it is required to raise the globe
holder the lever m is pressed back so as to stand clear of the thumb piece fand the
spindle e can be turned; in order to lock the same, all that is required to do is to
release the lever m when it immediately flies back over the square shank and locks
the same.
It is clear that instead of holding the spindle e fast, we can also apply the same or
other locking mechanism to one or both of the racks c c¹.
Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed, we declare that what
we claim is :
1) In lamp burners a rack c (or racks c c¹) gearing in a pinion or pinions and
bearing the shade holder or gallery, in combination with a holding device, for the
purpose of raising and holding the shade holder or gallery in an elevated position.
2) In lamp burners a rack c (or racks co¹) gearing in a pinion or pinions and
provided with the ring b, to which the shade holder or gallery is fastened by means
of a bayonet joint, in combination with a holding device, for the purpose as
described.
3) In lamp burners a hinged thumb piece fattached to the axle e of the pinions in
combination with the projection g attached to the burner for the purpose as
described.
4) In lamp burners a hinged lever L attached to the case of the burner in combi-
nation with the flattered handle for end of the axle e for the purpose as described.
5) In lamp burners a rack c (or racks c c¹) gearing in a pinion or pinions and
bearing the shade holder or gallery, in combination with the hinged thumb piece fand
with the projection g for the purpose as described.

page_text: 6) In lamp burners a rack c (or racks c c¹) gearing in a pinion or pinions and
bearing the shade holder or gallery in combination with the flattered handle for end
of the axle e for the purpose as described.
7) In lamp burners a ratchet-wheel h attached to the axle e of the pinions in combi-
nation with a pawl gearing into this wheel h for the purpose as described.
8) In lamp burners a flattered handle or end of the axle e of the pinions & d' in
combination with the locking lever m for the purpose as described.
Dated as ora day or Mai 1888.
MAX GRAETZ.
AUGUST KIESOW.
By A. Kuhnt & R. Deissler,
38, Alexanderstr., Berlin, Germany,
their Attorneys.