Improvements in Illuminating Contrivances.
Year: 1898

page_text: Date of Application, 12th Oct., 1898-Accepted, 18th Feb., 1899
COMPLETE SPECIFICATION.
Improvements in Illuminating Contrivances.
I, HUGO GANTKE, of No. 15, Novalis Strasse, Berlin, in the German Empire,
Engineer, 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:—
.
All the various means or contrivances for illuminating the inside of shop
windows, whether arranged at the top! or bottom employed up to the present
time suffer from the great drawback that the illuminant is considerably. removed
from the article to be illuminated and that in view of the various ways pro-
posed and employed for arranging the illuminant all those parts of the article
which are right in front of the spectator were not illuminated.
The object of the present invention is a special arrangement of the illuminant
or illuminants employed for showing purposes so that the illuminant is situated
A further
between the spectator and the article to be advertised or illuminated.
object of the invention is to bring the illuminant as near as possible to the
article or articles to be illuminated. As a result hereof a considerably greater
illuminating effect will be attained with illuminants than was heretofore possible,
or illuminants of reduced power may be employed for attaining effects equal
to those of the illuminant when employed in the old fashion.
In order that the invention may be clearly understood I will proceed to
describe the same fully by aid of the accompanying drawings in which
Fig. 1 shows an elevation of an illuminant from inside the shop window.
Fig. 2 is a cross section on line x-x of Fig. 1.
Fig. 3 to 7 illustrate various modified forms of and details of reflectors.
Fig. 8 shows a front elevation of an illuminant as arranged at a shop; window,
and
Fig. 9 shows a cross section of the arrangement illustrated in Fig. 8.
The illuminating contrivance consists of the lath (a) provided with a reflecting
inner surface, to which by means of screws (b) and suitable brackets (c) the
The bulbs
illuminating devices, preferably electric glow lamps () are fastened.
of the glow lamps (d) are advantageously of tubular shape as illustrated in the
drawings. Any other suitable and desirable shape of bulbs may however be
employed. The lath (a) may be of angular round or any other suitable cross
section. And instead of having the lath (a) constructed so as to produce a
reflecting surface, special reflectors (e) may be employed. These reflectors (e)
are fastened to the lath (a) by any suitable means such for instance as screws (f)
which would preferably be inserted immediately behind the lamps (). The
details and modifications shown in Figures 2 to 6 demonstrate that the re-
flectors (e) may either be provided with plane or curved surface, whereby the
dispersion of the rays of light increases as the reflecting surface approaches a
plane, is a plane or finally is convex. The reflector may be of any suitable
material; the term reflector as used in the present specification denominating light
reflecting surfaces in general. The reflecting surface may also be unpolished.
The illuminating contrivance is fixed in position in the following manner:
רום

page_text: A lath (a) mounted with the illuminants (d) is suspended on both sides of the
window at the inside of the latter by means of chains (f) of suitable and variable
length, which chains (f) are secured to the lath (a) by being hooked into a
hole (g) or by other suitable means on the one hand and to a rack (2) fast on
the window frame on the other hand. The rack (i) is provided with a series of
holes (k) for the purpose, which moreover enables the height of the laths to be
varied by the hook () of the chain (f¹) engaging in a higher or lower hole.
The illuminating contrivances may also be fixed in a perpendicular or inclined
direction although I have found the horizontal position to be the most ad-
vantageous one. The improved illuminating contrivance may also be employed
for the illumination of ornamental ceilings walls or like surfaces, pictures, signs,
facias and the like.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:-
1. An improved arrangement for the illumination of shop windows and the
like consisting in arranging laths with the illuminants mounted thereon in such
a manner on the inside of the window that the light will be reflected towards
the inside of the shop, and that the illuminants will be situated between the
spectator and the article to be illuminated, substantially as set forth.
2. In combination with the improved illumination arrangement as characterised
in Claim 1 a lath with reflecting surfaces of any suitable cross section, and the
illuminants fixed to the lath in front of the reflectors, the lath being adjustably
arranged across the window either horizontally or vertically, substantially as
set forth.
3. In combination with the illuminating contrivance as characterised in
Claim 2 the modification of having separate reflectors of either plane, concave or
convex. reflecting surface, the reflectors being secured to the lath by means of
screws or the like, situated behind the glow lamps, substantially as set forth.
4. In combination with the illuminating contrivance as characterized in
Claim 2 means for varying the position or height of the laths consisting in
the arrangement of a rack provided with a series of holes, and disposed on the
frame work on either side of the window, and a pair of chains fast to the ex-
tremities of the lath, serving by means of hooks for suspending said lathe. from
the racks, substantially as set forth.
Dated this 11th day of October 1898.
CHEESBROUGH & ROYSTON,
Applicant's Patent Agents. 15, Water Street, Liverpool,