Improvements in Lamp Shade Carriers.
Year: 1897

page_text: Date of Application, 13th Apr 1897
Complete Sparification Loft 12th Jan 1898 Accepted 19th Mar. 1898
Complete Specification Loft 12th Jan 1898-Accepted 19th Mar 1898
Improvements in Lamp Shade Carriers.
JAMES NELSON, Bank of England, Threadneedle Street, E.C., BERNARD MERVYN
DRAKE, and JOHN MARSHALL GORHAM, of 66, Victoria Street, London, S.W.,
Electrical Engineers, do hereby declare the nature of this invention to be as
follows:-
The object of our invention is to provide an improved method of supporting and
clipping conical and other shades, so as to avoid the risk of breakage from unequal
expansion, which at present occurs with the plain lock-nut usually employed; our
invention also enables the shade to be fixed and removed more readily.
Our invention consists of a tube of brass, or other suitable metal, one end of
which is splayed out into a number of projections or teeth-the other end being
screwed internally to fit on to the standard bayonet socket electric lamp-holders.
In this arrangement, the ordinary lock-nut is dispensed with, for, as the tube is
screwed up on the side of the shade, the extremities of the splayed ends come into
contact with the shade-forming a yielding but firm support. If preferred, a flat
ring with splayed edges, or teeth, on its outside periphery can be substituted for
the above, in which case the standard lock-nut presses it against the inside of the
shade
JAMES NELSON.
BERNARD M. DRAKE.
J. M. GORHAM.
Improvements in Lamp Shade Carriers.
JAMES NELSON, Engineer, Bank of England, Threadneedle Street, E.C., BERNARD
MERVYN DRAKE, and JOHN MARSHALL GORHAM, of 66, Victoria Street, London, S.W.,
Electrical Engineers, 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 our invention is to provide an improved method of supporting and
clipping conical and other shades, so as to avoid the risk of breakage from unequal
Our
expansion which at present occurs with the plain locknut usually employed.
invention also enables the shade to be fixed and removed more readily.
The carrier consists of a tube of brass or other suitable metal, one end of which
is splayed out into a number of projections or teeth; the inside of the tube being
screwed to fit on to the standard bayonet socket electric lamp holder. As the tube
is screwed up, the extremities of the splayed ends press against the inside of the
07

page_text: shade, forming a yielding but firm support. It will be seen that the shade carrier
as above described takes the place of the ordinary ring supplied with the standard
electric lamp holder. It is evident however that a disc with serrated periphery,
as above described, can be substituted for the above; in which case the standard
ring will be required in addition to the shade carrier, to act as a locknut.
In the accompanying drawing A shows the shade carrier in position; B is the
standard lamp holder; and C is the glass or other shade.
Having now described the nature of our invention and in what manner the said
is to be performed, we declare that what we claim is:
The use of a tube with splayed ends or disc with serrated periphery, arranged to
fit on the outside of the standard electric light lamp holder for the purpose of
supporting the shade.