An Improved Lamp Reflector.
Year: 1896

page_text: Date of Application, 1st Dec., 1896-Accepted, 6th Mar., 1897
COMPLETE SPECIFICATION.
An Improved Lamp Reflector.
I, HANNS THEYER, of 11 Kärnthnerstrasse, Vienna, in the Empire of Austria,
Furrier, 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:-
My invention relates to an improved lamp reflector, which consists of a reflector
constructed of light material and suitable for lamps for cycles, carriages, lanterns
and the like. The aforesaid reflector is so constructed that it will reflect the rays
of light issuing from a lamp (and especially those forming an angle of 90° with the
axis of the reflector) towards the direction it is required to throw light.
The reflector is constructed of a number of pyramid like grouped plain mirrors
of trapeze or triangular form, the said mirrors being either arranged in a pyramidal
surface enlarging or diverging from the light towards the direction to be
illuminated, or in one or more surfaces of pyramids arranged behind the light and
diverging towards the same, or the mirrors may be arranged in front and in the
rear of the light, in which latter, the group in front of the light and that group
behind the same may be united by another group of pyramidal mirrors converging
towards the front, this said group is placed nearly or exactly in a plane with the
light and in a plane vertical to the reflector in order to throw the rays of the
light towards the rear wall of the reflector.
And in order that my invention may be thoroughly understood, I now proceed.
to describe the accompanying drawing thereof, reference being had to letters and
figures marked thereon.
Fig. 1, is a vertical section of the reflector and an electric incandescent lamp.
Fig. 2, is a front view of the reflector without the electric incandescent lamp.
Fig. 3, is a plan of the ring which carries the lamp.
In carrying my invention into practice I provide an electric incandescent lamp a
which I put through a ring a' the said ring a' being attached to the casing of the
reflector. The nose a² is passed through a slot as formed in the ring a' and is fixed
by a slight turn.
The reflector is constructed with groups of mirrors c, d, e, and f, of which the
groups c, d, and f, are arranged as front diverging pyramidal surfaces, whereas the
group of mirrors e embracing the light from the lamp a and situated in a vertical
plane to the reflector has a truncated pyramidal form converging towards the
front.
The various surfaces of the group of mirrors e have such an inclination towards
the reflector, that they reflect the rays of light rearward towards the group of
mirrors c and d, from where they are reflected in common with the others, partly
reflected and partly direct towards the front.
The whole of the aforesaid groups of mirrors c, d, e, and f, are enclosed in a
metallic skin or outer frame 6 for the purpose of securing the whole apparatus
together in a rigid manner.
The group of mirrors f conveys the larger and smaller spreading of the light
from the lamp a.
If preferable the reflector may consist of only the group of mirrors f, or only of
the group of mirrors c, and d.

page_text: 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
claim is :-
1. In a lamp reflector, the combination of the group of mirrors c, d, e, and f, and
the skin or outer frame b with an electric incandescent lamp a supporting ring a'
nose a² and slot a³, substantially as herein described and according to the
accompanying drawing.
2. In a lamp reflector, the combination of the various parts substantially as
above described in this specification and illustrated in the accompanying drawing.
3. In a lamp reflector, the combination of the group of mirrors c, d, e, and f,
with the skin or outer frame b, substantially as herein described and according to
the accompanying drawing.
4. In a lamp reflector, the combination of the group of mirrors c, and d, with the
skin or outer frame b, substantially as herein described.
5. In a lamp reflector, the combination of the group of mirrors c, d, and f, with
the.outer.frame b, substantially as herein described.
Dated this 1st day of December 1896.
J. P. BAYLY,
18 Fulham Place, London, W., Agent for the Applicant.