Improvements in Lamp Globes or Shades.
Year: 1896

page_text: Improvements in Lamp Globes or Shades.
I, IGNAZ REICH, c/o S. Reich & Co. Glass Manufacturers, 90 Ritterstrasse,
Berlin, S. in the Empire of Germany, do hereby declare the nature of this
invention to be as follows:-
The lamp-globe which forms the subject of this invention and which in the
constructional example herein described presents the form of a crown shaped tulip,
possesses the advantage over globes as hitherto constructed that it does not cause
material loss of light by absorption while it operates to distribute the light very
uniformly over a large area and therefore produces an agreeable effect upon
the eye. The lighting effect obtained when using this lamp globe is superior to
that produced when using ordinary dimmed globes or globes provided with ribs,
inasmuch as the flame surrounded by the globe appears magnified.
The improvement in this lamp globe consists in the provision of projections
presenting curved surfaces upon the globe which is made of clear glass. The
grooves between the projections may intersect one another at any suitable angle
and be inclined at any desired angle to the longitudinal axis of the globe.
In some instances the projections are limited by parallel circles and by
longitudinal lines analogous to meridional lines and have a curved surface. In
other instances the projections have a rhomboidal shape, in which case their
limiting lines are not at right angles but are oblique to each other and to the
longitudinal axis of the globe. In other instances the lines limiting the projections
are formed by two parallel circles and by two lines inclined toward each other and
toward the longitudinal axis of the globe, in which case the projections present a
hexagonal shape in plan.
Instead of forming the projections upon the exterior surface of the globe they
may be formed upon the interior surface or on both surfaces of the globe. In this
latter case however, the projections on the two sides must lie exactly opposite one
another and must not be displaced relatively to each other, since otherwise the
purpose of the invention viz. the obtaining of a very uniform distribution of light
over a large surface while the flame appears magnified, and the production of an
agreeable effect upon the eye, would not be achieved.
Globes constructed as above described are not only advantageously applicable for
petroleum and gas light but likewise for electric light, and as protecting glasses or
shades for electric incandescence lamps or as larger cylindrical tubes or spherical
glasses for use in electric arc light lamps.
Dated this 11th doen of Iva 1806
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.

page_text: Improvements in Lamp Globes or Shades.
I, IGNAZ REICH, c/o S. Reich & Co., Glass Manufacturers, 90 Ritterstrasse,
Berlin, S., in the Empire of Germany, 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 :-
The lamp-globes which forms the subject of this invention and which in the
constructional example herein described presents the form of a crown shaped tulip,
possesses the advantage over globes as hitherto constructed, that it does not cause
material loss of light by absorption while it operates to distribute the light very
uniformly over a large arca and therefore produce an agreeable effect upon the
eye. The lighting effect obtained when using this lamp globe is superior to that
produced when using ordinary dimmed globes or globes provided with ribs,
inasmuch as the flame surrounded by the globe appears magnified.
The improvement in this lamp globe consists in the provision of projections
presenting curved surfaces upon the globe, which is made of undimmed glass. The
grooves between the projections may intersect one another at any suitable angle
and be inclined at any desired angle to the longitudinal axis of the globe.
In the accompanying drawing
Figure 1 represents a lamp globe or shade made of glass and having the shape of
a tulip, in which the grooves between the projections are arranged at right angles
relatively to each other.
Figure 2 represents a portion of a globe in which the projections are of a
rhomboidal shape and
Figure 3 is a similar view illustrating projections of hexagonal form.
The projections a in this constructional form shown in Figure 1 are limited by
parallel circles and by longitudinal lines analogous to meridional lines, and have a
curved surface.
In other instances the projections a have a rhomboidal shape, as shown in
Figure 2 in which case their limiting lines are not at right angles but are obliquely
to each other and to the longitudinal axis of the globe.
As shown in Figure 3 the lines limiting the projections are formed by two
parallel circles and by two lines inclined toward each other and toward the
longitudinal axle of the globe, in which case the projections present a hexagonal
shape in plan.
Instead of forming the projections upon the exterior surface of the globe, they
may be formed upon the interior surface or on both surfaces of the globe. In this
latter case however, the projections on the two sides must lie exactly opposite one
another and must not be displaced relatively to each other, since otherwise the
purpose of the invention viz., the obtaining of a very uniform distribution of light
over a large surface while the flame appears magnified, and the production of an
agreeable effect upon the eye, would not be achieved.
Globes constructed as above described are not only advantageously applicable for
petroleum and gas light but likewise for electric light, and as protecting glasses or
shades for electric incandescent lamps or as larger cylindrical tubes or spherical
glasses for use in electric arc light lamps.
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. A lamp globe consisting of non-dimmed glass, its characteristic feature
consisting in the arrangement of projections a with curved surface and grooves

page_text: intersecting each other and the longitudinal axis of the globe at any suitable angle,
so that the projections in elevation represent right angled or oblique angled
quadrangles or hexagons or the like.
Lamn lobes of the kind described with reference to Figures 1, 2 and 3 of
intersecting each other and the longitudinal axis of the globe at any suitable angle,
so that the projections in elevation represent right angled or oblique angled
quadrangles or hexagons or the like.
2 Lamp globes of the kind described with reference to Figures 1, 2 and 3 of
the drawing.
Dated this 10th day of March 1807
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.