Improvements in Reflector and Shade Holders and Reflectors for Electric and Gas Lamps.
Year: 1899

page_text: Date of Application, 18th May, 1899-Accepted, 2nd Sept., 1899
COMPLETE SPECIFICATION.
Improvements in Reflector and Shade Holders and Reflectors for
Electric and Gas Lamps.
I, JEAN HOUBOIS, of 225, Neusserstrasse, Cologne-Nippes, Germany, Manu-
facturer, 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 certain improvements in the mountings or holders
and reflectors of electric lamps and it has more specially for its object arrange-
ments whereby the drawbacks of the ordinary holders are obviated. These
drawbacks arise from the necessity of connecting the holders, on account of
their construction, with each other by means of conducting wires and the necessity
for fixing them in place either by means of plaster or putty.
By way of example, a few modes of carrying out my invention are represented
on the annexed drawing; on this drawing:-
Fig. 1 is a section taken through the centre line of an improved reflector pro-
vided with the new mounting.
Fig. 1, 1, 1°, show details of the mounting.
Figs. 2, 2, 2, 2º, are analogous views of a modified construction of the
invention.
Figs. 3 to 4b show two further modifications of the invention.
Fig. 5 is a section of a modified form of the reflector.
In the different figs. corresponding parts are indicated by the same reference
letters.
The new arrangement which is the object of my invention, consists of a part a
(Figs. 1-1) which serves to receive the bulb or globe of the electric lamp, an
outer socket b, provided with one or more openings the purpose of which is to
obtain, by soldering, a durable connection with the coupling c of the mounting.
This coupling has, at its lower end, a screw thread corresponding with a similar
one on the part a; and, at its upper end, a second screw thread so that the
coupling can be screwed into the screwed socket b.
The device is mounted in the following manner: -
The part a is first introduced into the mouth of the reflector e, then the
coupling is screwed on, at the same time a few drops of solder are poured in
between the parts a and c so as to obtain a solid connection between them; then
the socket is screwed on the coupling and these two parts soldered together
through the openings made in the socket b.
In this manner the parts a, c, b, are strongly and perfectly connected
together, and, further, the exterior contact is thus obtained whilst the second
contact can be established by a piece of conducting wire d, a screw, etc., as re-
presented at Fig. 1.
In the modification represented in Figs. 2, 2º, there is practically the same
arrangement with the exception that the part a which serves to receive the bulb
or globe of the lamp, is open at its upper end and that the socket 6 has a movable

page_text: contact d (with a spring) or a fixed one, which obviates the necessity for a
second conductor, because the current is brought directly to the lamp as may be
seen from the full view Fig. 2.
Figs. 1 and 2 show the application of the new mounting to electric lamps of
small dimensions whilst Fig. 3 shows the arrangement of this mounting for
normal sized electric lamps.
Figs. 3 shows the part a for receiving the globe of the lamp. This part a
has at its lower end a screw thread corresponding to the one on the globe or
bulb of the lamp whilst the upper part of said part a (with a reduced diameter)
has a thread by which it can be screwed into the part 6 of the mounting.
on a,
This part 6 (Fig. 3b) has, at the inside, a projecting screw-contact d, or, if
desired, a fixed pin, screw, etc.; as well as one or more openings to allow of
soldering. This arrangement is mounted, as is seen by looking at Fig. 3, by
introducing the part a into the mouth of the reflector e, by screwing part
and by soldering these two parts together through the openings of socket b.
In the modification shown at Fig. 4 the part a is provided with two different
screw-threads, a lower thread a' and an upper thread a².
Moreover, this part a is provided with an inner contact d and spring which
contact can be substituted by a fixed pin, screw, etc. Fig. 4b represents a ring,
provided with a corresponding thread, and serving to connect part a to the
reflector e. The arrangement is mounted by introducing the part a into the
mouth of the reflector, and by screwing the ring b on a
The contact d is, of course, suitably insulated.
The arrangement can, in a corresponding manner, be modified for the mount-
ings of other kinds of lamps and reflectors. It goes without saying that these
above described parts can also be connected to the reflector by means of plaster
or putty.
The reflector e of the arrangement, which is the object of this invention, is
made of silvered glass and has single or double walls (as represented in the
different illustrations of the annexed drawing). The reflectors, represented in
at Figs. 1 to 4 inclusive are suited specially for table-lamps, decorative lamps
for shopwindows, etc., whilst the reflector of Fig. 5 will be preferably used for
the lighting up of large areas in other words for obtaining a perfect distribution
of luminous rays over a large area.
The mountings can be used in conjunction with the glass, china, or metal
globes or bowls used in connection with acetylene and ordinary gas lighting.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what I
consider novel and desire to claim is:-
1. A mounting for reflectors in which the electric conduction between the
inner and the outer parts is not effected by conducting wires but by a direct
connection, substantially as herein before described.
2. A mounting for reflectors in which the inner and outer parts are screwed
into each other and in which the one electrical connection is made by means of
the contact of the parts of the mounting and the other connection by means of
a suitable contact such as a pin, screw, or such like, substantially as herein-
before described.
3. A mounting for reflectors consisting of a screwed inner part (a) and a
screwed outer part or socket (b) said parts being connected together by means
of a screwed coupling piece (c), substantially as herein before described.
4. The construction of mounting, substantially as herein before described with
reference to Figs. 1 to 1° of the drawings annexed.
.5. The construction of mounting, substantially as herein before described with
reference to Figs. 2 to 2 of the drawings annexed.
6. The construction of mounting, substantially as herein before described with
reference to Figs. 3 to 3b of the drawings annexed.

page_text: 7. The construction of mounting, substantially as herein before described with
reference to Figs. 4 to 4 of the drawings annexed.
8. The combination with the mounting as herein before described of reflectors
made of silvered glass and of a curved or flat shape with single or double walls,
substantially as herein before described with reference to the drawings annexed.
1000
H. D. FITZPATRICK,
100, Wellington Street, Glasgow, Agent.
H. D. FITZPATRICK,
100, Wellington Street, Glasgow, Agent.