Improvements relating to Hanging Lamps.
Year: 1899

page_text: Date of Application, 23rd Jan., 1899
Complete Specification Left. 23rd Oct. 1899-Accepted. 25th Nov.. 1899
PROVISIONAL SPECIFICATION.
Improvements relating to Hanging Lamps.
We, JOHN WILLIAM BERNARD WRIGHT and JOHN HENRY WOODROFFE, both
of New John Street West, in the City of Birmingham, Manufacturers, do hereby
declare the nature of this invention to be as follows
This invention consists of improvements relating to lamps of the type known as
"hanging lamps" in which the lamp reservoir or like part is carried actually
between the arms or brackets of a frame or holder. and the whole suspended from
a fixed pulley bracket and counter-balanced in the ordinary manner.
The object of our invention is to provide convenient and effective detachable
means of connection between the parts as hereinafter described.
In the construction of one form of hanging lamp in accordance with our inven-
tion, we provide a central bowl for the reception of the lamp reservoir, such bowl
being of cast iron or other metal and connected with the shade ring by three cast
iron or other metallic arms or brackets. Each of the said arms or brackets is
provided with a lug or projection for bearing upon the upper part of the bowl,
in a suitable retaining groove, and also with a foot like extension for connection
with the lower part of the bowl. The bearing on the upper part of the bowl
forms a fulcrum about which the arm or bracket may be turned slightly as a lever.
The foot connection is of a tapered or wedge shape to suit a correspondingly shaped
aperture in the lower part of the bowl. The upper end of each arm is arranged
to engage with the sheet metal or other ordinary shade ring.
'
The arms or brackets can be readily inserted in position upon the bowl and they
are effectually secured thereto by an ornamental clamping piece which we screw
into a tapped hole through the boss or central part of the bowl. On screwing home
the said clamping piece the foot of each of the arms or brackets is forced tightly
into the tapered aperture herein before described, whilst the upper ends of the
arms, being on the opposite side of their fulcrum bearing pieces, are expanded
tightly against the shade ring.
The parts of the lamp frame or holder are thus rigidly connected together,
but on releasing the screwed clamping piece they can he readily disconnected for
packing and transit.
We sometimes provide our lamp holders or frames without a central bowl such
as hereinhefore described between the arms or brackets. In such holders we sup-
port the lamp reservoir and its fittings upon shoulders formed on the arms or
brackets. The lower ends of the arms we provide with suitably shaped feet to
pass into recesses formed in a cup shaped retaining piece, to which the said feet
are secured by a clamping nut drawn tightly between them by means of a terminal
screw or stud. The feet are so shaped and arranged that the tightening of the
clamping piece also secures the upper ends of the arms or brackets to the shade ring.
We apply our invention to hanging lamps of varying designs or patterns
adapted to the particular services for which they,' are required.
1
T
1000
MARKS & CLERK,
18, Southampton Buildings, London, W.C.,
13, Temple Street, Birmingham, and
Cross Street, Manchester, Agents for the Applicant.

page_text: Improvements relating to Hanging Lamps.
We, JOHN WILLIAM BERNARD WRIGHT and JOHN HENRY WOODROFFE, both
of New John Street West, in the City of Birmingham, Manufacturers, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
-
J
This invention consists of improvements relating to lamps of the type known as
"hanging lamps" in which the lamp reservoir or like part is carried centrally
between the arms or brackets of a frame or holder, and the whole suspended from
a fixed pulley bracket and counter-balanced in the ordinary manner.
In the two accompanying sheets of explanatory drawings to be hereinafter
referred to,
Figure 1 is an elevation representing, in outline or diagram form, the frame or
holder portion of a hanging lamp as constructed and arranged in accordance with
our invention.
Figure 2 is a side elevation and Figure 3 an end elevation showing, to a larger
scale, the connection between one of the frame or holder arms and the upper part
of the bowl, whilst Figure 4 is an elevation, with part in section, of the connection
between the frame arms and the lower part of the bowl, and Figure 5 an elevation
of the lower part of the bowl.
Figure 6 is an elevation representing, in outline, a modified type of frame or
holder for use without a central bowl, whilst Figures 7 and 8 represent by sectional
elevation and plan respectively (and to a larger scale) the means of connecting
together the lower portions of the frame arms.
The same reference letters in the different views indicate the same parts.
In the construction of one form of hanging lamp in accordance with our inven-
tion, we provide a central bowl or bracket A (Sheet 1) for the reception of the
lamp reservoir, such bowl being of cast iron or other metal and secured between
the lower portions of the three cast iron or other metallic arms or brackets as B.
The said arms or brackets (which are made in various ornamented patterns to
suit requirements) are each provided with a lug or projection b for engaging with
the upper part of the bowl A as illustrated. (or for resting on the top edge of the
bowl), and also with a foot like extension b' for connection with the lower part of
the bowl. The bearing on the upper part of the bowl forms a fulcrum about
which the arm or bracket may be turned slightly as a lever. The foot connection
is of a tapered or wedge shape to suit a correspondingly shaped aperture in the
lower part of the bowl. The upper end of each arm is arranged to engage with
the sheet metal or other ordinary shade ring C.
The arms or lever brackets B can be readily inserted in position upon the bowl A
and they are effectually secured thereto by a clamping piece D (of an ornamental
pattern corresponding with the brackets) which we screw into a tapped hole
through the boss or central part of the bowl (as shown at Figure 4). On screwing
home the said clamping piece D the foot of each of the brackets is forced tightly
into the tapered aperture herein before described, whilst the upper end of the
arms, being on the opposite side of their fulcrum bearing pieces, are expanded
tightly against the shade ring C. A lock nut E is provided to prevent accidental
detachment.
The parts of the lamp frame or holder are thus rigidly connected together, but
on releasing the screwed clamping piece D they can be readily disconnected for
packing and transit.
We sometimes provide our lamp holders or frames without a central bowl such

page_text: as hereinbefore described between the arms or brackets. In such holders we
support the lamp reservoir and its fittings upon shoulders f formed on the arms
or brackets F. The lower ends of the brackets we provide with suitably shaped
feet to pass into recesses formed in a cup shaped retaining piece G, to which the
said feet are secured by a clamping plate H drawn tightly between them by means
of the clamping screw or bolt D¹. The feet of the brackets and the portions of the
retaining piece G on which they bear are so shaped and arranged that the tighten-
ing home of the clamping nut plate H (to the position shown at Figure 7) causes
the upper ends of the arms or brackets to close in upon the shade ring C¹, the
retaining piece providing fulcrums for the lever like brackets. The lock.nut E¹
prevents accidental detachment.
We apply our invention to hanging lamps of varying designs or patterns adapted
to the particular services for which they are required.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
1. The improved means of connecting and clamping together the parts of a
hanging lamp, substantially as described and as illustrated.
2. In a hanging lamp, the combination with a bowl A and shade ring C of arms
or lever brackets B having their fulcrums upon the top of the said bowl A and their
lower ends connected and clamped to the bottom of the same, substantially as and
for the purpose described and as illustrated.
3. In a hanging lamp, the combination with a shade ring C¹ and cup shaped
retaining niece G, of arms or lever brackets F having lamp supporting shoulders f
and with fulcrums within the said retaining piece to which their lower ends are
connected and clamped, substantially as and for the purpose 'described and as
illustrated.
Dated this 21st day of October 1899
MARKS & CLERK,
18, Southampton Buildings, London, W.C.,
13, Temple Street, Birmingham, and
25, Cross Street, Manchester, Agents for the Applicant.