An Improved Conical Shaped Gas Lamp for Public Buildings, Mills, and Workshops.
Year: 1891

page_text: Date of Application, 13th Mar., 1891
Complete Specification Left, 4th Dec., 1891-Accepted, 5th Mar., 1842
PROVISIONAL SPECIFICATION.
An Improved Conical Shaped Gas Lamp for Public Buildings, Mills,
and Workshops.
THOMAS HUDDERS, 31 Queen Street, Shaw in the County of Lancaster,
Tinplate Worker, do hereby declare the nature of this invention to be as
follows:-
The object of my said invention is so as to improve lamps and make them give a
better and clearer light, which is effected by dispensing with the down bars, and
replacing same with wire.
The glasses are held together by tabs, top and bottom, which has the effect of
strengthening the lamp and doing away with all shading of the light by the bars,
and by so doing give a better and clearer light.
Dated this 12th day of March 1891
THOMAS HUDDERS.
COMPLETE SPECIFICATION.
An Improved Conical Shaped Gas Lamp for Public Buildings, Mills,
and Workshops.
THOMAS HUDDERS, 31 Queen Street Shaw, in the County of Lancaster
Tinplate Worker, 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 object of my said invention is to improve lamps and make them give a better
and clearer light, which is effected by dispensing with the down bars and replacing
same with wire. The glasses are held together by tabs top and bottom, which has
the effect of doing away with all shading of the light by the bars, & by so doing
gives a better and clearer light.
As applied in cotton or other textile mills or warehouses, this lamp possesses
many and great advantages, as the light being entirely surrounded by its conical
sections of glass, and it also being protected at the top, by a suitable reflector and
ventilating cowl, any loose fibre or other fluff that may be in the atmosphere is
prevented from coming into actual contact with the light, as the same is thoroughly
covered. The construction of this lamp again preventing the casting of shadows
from divisions at the rabbits as is customary in the ordinary lamps, which in many
constructions possess as many as eight, these of course materially interfering with
the clear volume of light thrown out.
Now my invention is designed to prevent these blocks in the light, or casting of
shadows and consists is supporting the top or cover or reflector portion of the lamp
by small metal bars from the base.
These metal or wire supports are secured to the base ring in suitable manner, and
extended at same time diverging outwards to convenient height and secured to the
top ring. This ring receives the reflector proper, which may be of opal or other
suitable reflective material. The inverted cone thus formed by the wire supports,
is now filled in on the outer diameter by glass segments, these segments being so cut
& divided as to fit evenly side by side and not tight, so that as the lamp may get
heated, the expansion of the glass & frame will be equal, and the segments being
free to do so, there is no liability to break. The glass segments are held in place
by usual tabs, top and bottom. An opening is provided in the top of the lamp or
reflector for a ventilator or air cowl, which fits on a suitable projection formed
CD27

page_text: on the outside thereof. This ventilator or air cowl is perforated for a suitable
length, and is provided with a conical cover secured thereto by tabs or other
suitable means.
The floor of the base ring may be made loose or secured thereto. It is preferably
made of gauze and an additional hole to the one provided for the burner is provided
for the purpose of inserting the taper or other means for lighting; this of course it
will be understood can be varied in many ways, as for instance, one half can be
glass or opal and the other gauze, or other similar alterations. For a wall lamp I
should cut away part of the cone and leave a flat back so that the front or exposed
portion does duty for throwing the light forward. Of course it will be understood
that these lamps can be arranged to be fitted up in any required position. And in
order that my invention may be thoroughly understood I will now proceed to
describe the same with reference to the drawings hereto annexed.
The same reference letters indicating the same parts in the different views.
Fig. 1. is an elevation of an ordinary lamp.
Fig. 2. is a part sectional plan on line a. b. showing the down bars for supporting
the upper portion to the base ring.
Fig. 3. is an elevation for a lamp designed for fixing to a wall.
Fig. 4. is a plan of Fig. 3.
Figs. 5 & 6 show the method of securing the glass sections in place by means of
the tabs.
Fig. 7. is a plan of base ring showing one half perforated & the other glass.
A are the down wires for supporting the upper portion B of a lamp as constructed
according to my improvements, to the base ring H.
C is a detachable air cowl. D are the glass sections which may be varied in
number according to requirements. E is the orifice to permit of the burner and
F is an opening for the purpose of permitting the entrance of the means for lighting.
G is a tab or solder surface for securing the down wires A to the base ring H.
I are small metal tabs for holding the glass sections in place, (Figs. 5 & 6).
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same shall be performed, I declare that what I
claim is :-
1. The use and application of down wires for supporting the upper portion of a
lamp to the base thereof, for the purpose and with the object as substantially herein
described and illustrated in the accompanying drawings.
2. The use in combination with a conically shaped lamp of loose segments of
glass held in place by tabs in the manner and for the purpose as herein substantially
described & illustrated by the accompanying drawings.
Dated this 3rd day of December 1891.
W. T. EMMOTT & Co.,
New Bridge Street, Manchester, Agents for the Applicant.