An Improved Reflector for Electric Incandescent Lamps.
Year: 1897

page_text: An Improved Reflector for Electric Incandescent Lamps.
I, JEAN HOUBOIS, of 200, Neusserstrasse, Cologne, in the Empire of Germany,
Merchant, do hereby declare the nature of this invention to be as follows;
This invention relates to improved hollow glass reflectors for electric incandescent
lamps, which are directly inserted in the incandescent lamp socket or holder,
and for this object are provided with a suitable holder.
Some examples of these reflectors are shown in the accompanying drawings
in vertical section. In these;-
Figure 1 shows a socket and fitting of the normal size for Edison's system;
Figure 2 a socket of normal size for the Edison and Swan form of lamp;
Figure 3 а socket for the Edison normal size and the Swan mignon
pattern;
Figure 4
socket for the Swan normal size and Edison mignon pattern.
In the interior of the reflectors there is a holder or socket serving for holding
the incandescent lamp, the contact pieces c of which are in conducting communica-
tion with those d of the socket a.
This 1911
1007
Pop for Dectric Incandescent Lamps.
I, JEAN HOUBOIS, of Cologne-Nippes, Neusserstrasse 200, in the Empire of
Germany, Merchant, 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 improved hollow glass reflectors for electric incan-

page_text: descent lamps which are directly inserted in the socket of the lamp bracket or
equivalent ntting in which the incandescent lamp would be fixed if this holder
were not used, and which have in their interior an equivalent socket to receive
the incandescent lamp, the contact pieces in the two sockets being electrically
connected in a suitable manner to convey the current to the lamp in the same
manner as if the latter were fixed directly in the bracket or fitting without inter-
vention of the reflector with its socket pieces.
In the annexed drawing Figs. 1 to 11 show in cross section various forms
of reflector and socket pieces for holding them; thus, Fig. 1 illustrates a method
of fastening the outer spigot to the inner socket. Fig. 2 illustrates a modified
construction especially applicable to the Edison central contact. Figs. 3 and 4
show forms connected by bayonet fastenings and in which electrical communication
between the corresponding contacts are produced by the use of a spring or wire.
Fig. 5. shows the construction for Swan fittings, with bayonet fastening of the
two parts of the holder. Fig. 6 illustrates another form for central contact.
Figs. 7 to 10 show various forms in which the inner socket and outer spigot are
connected by cement. Fig. 11 shows a reflector with the holder made to take
small or miniature lamps.
In the drawings c represents the reflector b is the outer holder forming the spigot
and a is the inner holder forming the socket in which the lamp is to be inserted
g and represent. contacts. In Fig. 1 the part a is screw threaded to engage
in the part and each part has a projecting flange between which flanges the
reflector c is held. The two contacts and fabut together when the part a is
fully screwed into part b. In Fig. 2 the part a is open at the top to allow of the
use of the Edison middle contact. In Figs. 3 and 4 the outer part b engages by
means of lugs the edge of the reflector, while the inner part a has exterior lugs
engaging in slots in the reflector. These engage on the system of a bayonet
fastening. The electrical connection of the contacts could be produced
by contact as in Fig. 1 or by a spring as in Fig. 3 or conducting wires as in
Fig. 4.
In Fig. 5 the reflector is held between the flange d of the bayonet jointed part
and a screw threaded ring m screwed upon the outer part of the holder. In Fig. 6
the parts are also screwed together, the reflector being held between the flanges d
and e.
This fitting is for use with lamps and fittings connected by bayonet fasten-
ing and is provided above and below respectively with the pins and slots of such
fastenings. Figs. 7 to 10 show constructions in which cement is used to fasten
the parts together and hold them in place. Figs. 7 and 8 are constructions suitable
for Edison lamps. Figs 9 and 10 are for Swan lamps in which the socket is either
screw threaded or plain.
Fig. 11 shows a construction in which the diameter of the inner socket is much
smaller than that of the outer spigot. This difference renders it advisable to use
an intermediate piece k part of which screws into part and part onto part a.
The communication of the inner and outer contacts is produced as in Fig. 1, but
the methods employed in Fig. 3 or 4 may also be used here.
The holders could also be made to suit different methods of contact on the
outside and inside respectively if so desired.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is
A reflector fitting in which the reflector is held between an inner socket or
holder and an outer spigot or holder the latter having contacts suitable to the
system of contacts in the fitting to which the device is to be applied, and the inner
socket having also contacts in electrical communication with the former contacts
respectively of the system appropriate to those on the lamp to be fitted in said

page_text: socket, such fitting being constructed substantially as herein described and for
the purpose set forth.
Dated 14th day of June 1898.
HERBERT HADDAN & Co.,
Agents to Applicant,
18, Buckingham Street, Strand, W.C., London.