Improvements in Shade-holders for Incandescent Electric Lamps.
Year: 1896

page_text: Date of Application, 13th Apr., 1896-Accepted, 16th May, 1896
COMPLETE SPECIFICATION.
Improvements in Shade-holders for Incandescent Electric Lamps.
I HENRY AMYATT CHAUNDY HELLYER, of 306 Fulton Street, Brooklyn, in
the County of Kings and State of New York, United States of America,
Gentleman 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 :-
My invention relates to shades and shade-holders for incandescent electric lamps
and it has for its object to provide an inexpensive and durable shade-holder for
incandescent electric lamps which is less liable to fracture and of more protection
to the lamp.
Reference is to be had to the accompanying drawings forming a part of this
Specification, in which similar characters of reference indicate corresponding parts
in all the figures.
Figure 1 is a broken transverse section of my improved shade and holder,
showing a part of the lamp socket in elevation;
Figure 2 is a similar view of a modified construction;
Figure 3 is an elevation of an upright swivel lamp having a shade and a shade-
holder fitted over the point of the lamp;
Figure 4 is a cross sectional elevation of the holder shown in Figure 3 ;
Figure 5 is a plan thereof;
Figures 6 and 7 are a sectional elevation and a plan respectively of the shade-
holder shown in Figure 2;
Figures 8 and 9 are similar views of the shade-holder shown in Figure 1;
Figure 10 is a sectional elevation of a fastening ring which I sometimes employ
in connection with my improved shade-holder; and
Figure 11 shows one of the fasteners employed for connecting the shade to the
bolder, and one of the washers that may be used in conjunction with said
fastener.
A is a shade of stiff paper, cardboard, celluloid or any other flexible material,
cut to the required shape and jointed in a sloping line in any convenient manner or
moulded in one piece. The interior surface is preferably white and of a reflecting
character and the exterior of a darker color, either material of the desired
character being used in the construction or the surfaces being suitably finished
afterward, but both surfaces may be of any desired color and character. The
depth of the shade may be made a little larger than the depth, i.e., length, of the
lamp L, so that the lower rim of the shade projects below the lower point of
the lamp, thus forming a protection to the latter in case of the whole of it dropping
and striking a hard surface.
As illustrated by Figure 1, a ring C is passed over the screw-threaded socket B of
the lamp L, said ring having for this purpose a central opening C (Figures &
and 9) preferably of sufficient size to pass over the socket without being screwed
thereon. The ring has a beveled flange C inclined at approximately the same
angle as the shade, or somewhat steeper, so that the shade will be readily and
securely fitted within the flange. The latter is perforated at intervals as shown
at C³ for the reception of paper fasteners D of the usual type shown in Figure 11,
or any approved fastener such as a pin, wire or a screw may be used. The
fasteners may be applied to secure the shade A to the flange C of the ring C
directly, or washers such as shown at E (Figures 2 and 11) may be added on the

page_text: inner side of the shade to protect the same, or instead of said washers, I may
employ a continuous ring G, see Figures 1 and 10, the fasteners D being passed
through the outer flange C, the shade A, and the inner ring G which has a flange
beveled correspondingly to the shade, and a, central opening G adapted to fit over
the screw threaded end of the lamp socket B. The opening Gi is preferably
larger than the fastening nut H which screws on the lamp socket to hold the
ring C against the threaded collar B' of the socket. The ring or shade holder C
is provided with ventilating openings C preferably arranged in a concentric row
exteriorly of the collar B₁ so that air can continuously pass upward along the
lamp L and out through said openings, thus keeping the lamp cool. The shade-
holder and shade are first secured together and then applied to the lamp passing
the ring C up over the screw threaded portion of the socket B, then screwing the
nut on the socket to clamp the ring.
As illustrated in Figure 2, the ring or shade holder C is provided with an
approximately cylindrical neck C surrounding the central opening C and adapted
to engage the lamp socket. The usual insulating screw collar B³ prevents the
downward movement of the holder. This holder (see also 'Figures 6 and 7) like
the one shown in Figures 1, 8 and 9, is also provided with the beveled flange C³,
apertures C for the reception of the fasteners, and ventilating openings C'
exteriorly of the socket's contour.
Figure 3 shows the shade applied to the top or point of a swinging or portable
bracket lamp of well-known construction. I is the pivot of the lamp and J the
weight which holds it upright. The shade holder C in this case has the beveled
flange C2, the fastener receiving slits or apertures C and the ventilating
openings C arranged substantially as hereinbefore described, but the central
opening C¹ is much smaller, being only of sufficient size to receive the point L' of
the lamp. As shown in Figures 4 and 5, this central opening is formed in a trans-
verse plate C preferably convexed around the opening to conform to the shape of
the lamp's point, which plate C extends at the outer end of an approximately
cylindrical neck C whose inner end is adapted to rest on the lamp (see Figure 3):
so that the holder is properly supported. It will be observed that in this case the
holder can be applied and removed without loosening any part of the lamp or its
socket.
The shade-holders or rings C herein before described, as well as the ring G
(Figure 10) are made of any suitable material; in practice I make them of thin
metal.
I do not claim any novelty for the ring G shown in Figures 1 and 10 or for the
fastener D represented in Figure 11, or for the shade A as such.
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,
1. A shade-holder having a beveled flange adapted for connection with the
shade, and ventilating openings interiorly of said flange, substantially as shown and
described.
2. A shade-holder having a central opening, a beveled flange at its outer edge,
and ventilating openings between the flange and the central opening, substantially
as shown and described.
3. A shade-holder having a central opening (without a neck) to receive the
socket of an incandescent electric lamp, and a beveled outer flange for connection
with the shade, substantially as shown in Figures 1, 8 and 9, and described with
reference thereto.
4. A shade-holder having a central opening, an approximately cylindrical neck
surrounding said opening, a beveled peripheral flange for connection with the shade,
and ventilating openings between the flange and the neck, substantially as shown
in Figures 2, 6 and 7 and described with reference thereto.
5. A shade-holder provided with an end plate having a central perforation or

page_text: depression adapted to receive the point of an incandescent electric lamp, substan-
tially as shown and described.
6. A shade holder provided with a peripheral beveled flange adapted for
connection with the shade, an interior approximately cylindrical neck, ventilating
openings between said neck and the flange, a transverse plate at the outer end of
the neck, and a central depression or aperture in said plate to receive the point of
an incandescent electric lamp, substantially as shown in Figures 3, 4, and 5 and
described with reference thereto.
7. The combination with a holder such as claimed under head 3, of a shade
secured to the beveled flange of said holder, substantially as shown and
described.
8. The combination with a holder such as claimed under head 4, of a shade
secured to the beveled flange of said holder, substantially as shown and
described.
9. The combination with a holder such as claimed under head 6, of a shade
secured to the beveled flange of said holder, substantially as shown and
described.
10. The combination with the conical shade, the holder having a beveled flange
to fit the shade, fasteners for securing the shade to the flange, and a washer at one
end of each fastener, substantially as shown and described.
n
.
A. M. & WM. CLARK,
53 Chancery Lane, London, Chartered Patent Agents.
A. M. & WM. CLARK,
53 Chancery Lane, London, Chartered Patent Agents.