Improvements in the Manufacture of the Body Part of Lamps.
Year: 1895

page_text: Date of Application, 16th Dec., 1895
Complete Specification Left, 31st Aug., 1896-Accepted, 7th Nov., 1896
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of the Body Part of Lamps.
I, GEORGE HARRY WILLIAM DAVIS, trading as G. H. W. Davis & Co. of
Edgbaston Works, Gough Road, Birmingham in the County of Warwick, Lamp
Manufacturer, do hereby declare the nature of my said invention to be as
follows:-
My invention has for its object improvements in the manufacture of the body-
part of lamps which are simplified in their construction so that a less number of
parts are required to compose the lamp body and they are capable of bearing more
strain.
According to my invention I do not materially or necessarily interfere with the
general formation of the bodies as now made as regards their shape or configuration
though according to my invention different shapes may be dealt with. In the case
of lamp bodies of oblong or square cross section I may form these from two pieces
of metal as regards their principal parts that is to say, I form one half from one
piece of sheet metal and the other half from another sheet of metal. The division
may either be at two opposite angles or across the sides. In either case when the
two portions are brought with their edges together the major portion or body
frame is complete to receive the supplemental finishing parts. These two portions
may be hinged to each other so as to turn in any desired direction and the oil
reservoir may be separate and either hinged to the body or fastened by lips and
a spring. My invention refers to the tops or upper parts of the bodies also which
may be one with the body portion or portions.
Dated this 14th day of December 1895.
GEORGE BARKER,
77 Colmore Row, Birmingham, Agent for Applicant.
Improvements in the Manufacture of the Body Part of Lamps.
I, GEORGE HARRY WILLIAM DAVIS, trading as G. H. W. Davis & Co. of
Edgbaston Works Gough Road Birmingham in the County of Warwick Lamp
Manufacturer do hereby declare the nature of my said 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 has for its object improvements in the manufacture of the body
part of lamps which are simplified in their construction so that a less number of
parts are required to compose the lamp body and they are capable of bearing more
strain.
According to my invention I do not materially or necessarily interfere with the
general formation of the bodies as now made as regards their shape or configuration
though according to my invention different shapes may be dealt with. In the case
of lamp bodies of oblong or square cross section I may form these from two pieces
of metal as regards their principal parts, that is to say I form one half from one

page_text: L
.
piece of sheet metal, and the other half from another sheet of metal.' The division
may either be at two opposite angles or across the sides. In either case when the
two portions are brought with their edges together the major portion or body
frame is complete to receive the supplimental finishing parts. These two portions
may be hinged to each other so as to turn in any desired direction and the oil
reservoir may be separate and either hinged to the body or fastened by lips and a
spring. My invention refers to the tops or upper parts of the bodies.
In order that my invention may be clearly understood and more easily carried
into practical effect I have appended hereunto a double sized sheet of drawings
upon which I have illustrated examples of the same which will enable others to
apply the invention generally. It will be understood that the configuration of the
parts shown may be varied to suit circumstances without departing from the
principle.
Figure 1 shows a stamping made from one sheet of metal which forms one half
of the main portion of the body of a lamp.
Figure 2 shows two such stampings as are shown by Figure 1 brought together
'or nearly so which together when' united form the body of a lamp.
Figure 3 shows a similar example to Figure 1 only that the stamping includes
one face and a portion of two sides of a lamp body.
Figure 4 illustrates two portions such as are shown by Figure 3 brought together
so as to form the body of a lamp.
Figure 5 is the ordinary buse or oil reservoir of a lamp with glass holders ready
to receive the transparent reflectors.
Figures 6 and 7 are back and side elevations of the side lights showing the
'manner of making them ready for fixing to the body of the lamp.
I make my lamp bodies according to this invention principally from two main
portions with the supplemental parts added afterwards. Figure shows a
staniping for a plain oblong lamp body, two of which brought together as shown
at Figure 2 form the main portion of the body, that is to say I take a sheet of
metal of the required form and bend it under the press or stamp or other tool with
the face A and end B and part of the head at, a' constituting one part. The other
part is composed of the face A' and end B' and head 'a' a' each part A, A' with
their holes a, a, a and a for the reception of the cones H, H' and for the side
lights S as clearly shown on the drawings. This lamp body may be hinged
together at the diagonal junction a10 across the head or at the angles a" or a¹ or
at other convenient part and the edges may be finished with lapped or turned over
or 'other joints as found most convenient according to the weight of metal used
and the particular configuration of the body being made and these vary considerably
according to quality and fancy. The bells or cones H, H' may be of any desired
pattern and the side lights S of any colour but I fix the side lights by means of
the bent strips s, 8, 8, s, which are stamped out of the centre of the back
piece which is held to the frame or front piece by the bent ears
on the frame and when the side frame is placed against the side hole a or a the
ears are turned over-inside the body thus securing them in position. The body
shown by Figure 4 is constructed from two portions such as that shown by
Figure 3 brought together and the principal difference between this modification
and the one herein before explained is that the stampings are in this case so made
that the two portions each include a front A or A' and each has half an
end B and B so that the division in this case takes place parallel with the
fronts A or A¹ and the hinge in this case would be arranged accordingly as
will be well understood: It will also be noticed that the inner hood b³, b; b, b
is in this case formed with the body portions and the outer hood 6 is fixed
separately at the angles:, b². In the previous case of Figures 1 and 2 an
inner hood is made: and fixed separately, and in the case of Figures 3 and 4
the projections on the side lights are arranged so as to come on one side the
junction 68 of the two parts. In both the instances given the oil reservoir or
base R may be used with two glass transparent reflectors fitting in the. guide
formed

page_text: holders, when the duplicate bells or cones H, H² are used but when only
one bell or cone is used only one holder such as is used in which case it is a
reflector and not transparent.
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 :-
The improvements in the manufacture of the body part of lamps composed
largely and essentially of two portions each stamped from one piece of metal with
either one
or two bells or cones and with either two glass holders or one.
reflector holder with side lights all substantially as and for the purpose herein set
forth and such as shown upon the accompanying drawings.
Dated this 29th day of August 1896.
GEORGE BARKER,
77 Colmore Row, Birmingham, Agent..