Year: 1888

page_text: Date of Application, 22nd Mar., 1888
Specification Accepted, 1st June, 1888
We JOHN WILLIAM BERNARD WRIGHT of the firm of Wright and Butler Limited,
Lamp Manufacturers, New John Street West, Managing Director and GEORGE
LEWIS, 124 Park Lane Aston, Mechanic, both of Birmingham in the County of
Warwick do hereby declare the nature of our said invention and in what manner the
same is to be performed to be particularly described and ascertained in and by the
following statement :-
Our invention has for its object improvements in shade holders for lamps and
other lights. The burners of lamps are not usually fitted with shade holders and it
is often desirable to apply a shade to lamps having no holder connected therewith
and our invention is intended to meet this special need as well as to supply a holder
which is easily applied to almost any kind of light where a shade is required.
In order that our invention may be clearly understood and more easily carried
into practical effect we have appended hereunto a double sized sheet of drawings
upon which we have illustrated several examples of the same in eight figures as
follows:-
Figure 1 is a side elevation of an ordinary lamp burner A with one of our special
shade holders B applied thereto.
Figure 2 is an inverted plan of the burner A and the centre part 6 of the
holder B.
Figure 3 is a plan of the centre part 61 of the holder B removed from the
burner A so that the details may be more clearly seen of the centre ring 6¹ and the
thumb screw e.
Figure 4 is a plan showing another example of how the centre portion 6' of B may
be connected to the burner by a thumb-spring arrangement.
Figures 5 & 6 are also similar plans showing further examples of how the shade
holder B may be attached to the burner without either thumb screw or thumb
spring.
Figures 7 & 8 are broken off sectional elevations of the bead upon the burner A
and the ring & which clips the same.
The outer ring B or shade holder proper may be made in any desired section to
receive the shade as at present and the connecting or radial or other rods b³, b³, b²,

page_text: may be of any section or design so long as they are sufficiently flexible to yield when
the centre or inner ring is expanded. In the case of inner ring or expanding
centre ring b¹ of the shade holder B it is split at the part 5 and the two projections
or ears 6 and 6' are formed thereon through which the screw e passes and by which
the ears may be brought together and bound upon the projection or bead a¹ of any
burner see Figures 7 and 8 where the sections of such rings are seen.
They may
be angular as in Figure & or curved as in Figure 7 and the under edge 6³ may be
continuous or only as snugs or projecting points as seen at Figure 2 and no doubt
three of such points or nose pieces would generally be found quite sufficient to
prevent the shade being moved when properly tightened by the screw e. We do not
confine ourselves to the use of one screw or a screw such as e as a simple curled
spring K may be used as seen at Figure 4 which would spring around the pro-
jection 6º on the ring b. This spring or expansion action may be made self acting
without a screw or thumb spring by severing the ring 6' at say three places according
to the number of radial or other arms as seen at Figure 5 and the divided parts of
the ring may then be coupled together by spiral or other springs m, m³, m² which
would allow of sufficient expansion to pass over the bead a¹ which it would clip.
Figure 6 shows a similar plan only the springs m are replaced by the wire or other
flexible connections n, n¹ n² which allow of expansion.
It will thus be understood
that we obtain adjustability and adaptability in the inner ring or other clipping
portion of the centre 6 of shade holders so as to suit various lamp burners or other
parts of lights or lamp stands.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
The improvements in shade holders in which the inner ring or other clipping
portion is capable of adjustment. so as to be adaptable to existing burners and parts
of lights substantially as and for the purpose herein set forth and shewn upon the
drawings.
GEORGE BARKER,
77, Colmore Row, Birmingham,
Agent for Applicant.