Fastenings for Shade or Globe Holders.
Year: 1893

page_text: COMPLETE SPECIFICATION.
Fastenings for Shade or Globe Holders.
JOHN HOWARD Ross 30 Crompton Road Handsworth Birmingham, Lighting
Engineer, 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 consists in the application to a globe or shade holder of an
improved method of fastening the globe or shade to the holder.
To carry out my invention I employ a hooked lever fastening, having a fulcrum
capable of being moved nearer to or further from the centre of holder and teeth
or notches and a part to engage therewith so arranged that the more pressure used
to pull globe or shade off holder the more firmly will the part that engages in
the teeth or notches be held in its place, and to prevent the sliding lever from
being moved accidentaly I employ a spring, lever, or mechanical equivalent to hold
the part that engages with the teeth or notches securely, so that to release the
globe or shade from the holder it is necessary either to press the spring, or move
the lever or mechanical equivalent before the part which engages with the teeth
or notches can be disengaged, the sliding lever moved, & the globe or shade
taken off.
"I
This method of fastening may be adapted or employed to secure globes or shades
upon holders for gas, eletric light &c. and may be arranged to secure them
either from the outside or inside, & it is obvious that the shape & form of both
holder & fastener may be altered to suit the various shapes of globes & shades
as would be well understood by any manufacturer of these goods all of which
would come within and be covered by this my invention as herein described &
illustrated.
In the accompanying drawings
Fig. I shows my improved fastener applied to one arm of an ordinary cornet
gas globe holder, but it can be applied to more than one arm if necessary.
B is the holder arm having teeth or notches A cut upon the top with which the
part C of hooked sliding lever fastener engages. D is a hollow raised part on
each side of sliding lever fastener to contain a spiral or other spring which by
pressing upon the under part of arm B holds the part C in the teeth or notches A.
E is the hooked part of sliding lever which secures the globe or shade by being
brought up against the inside when placed upon the holder. F is the fulcrum of
the sliding lever which may be in the form of a rivet or pin which passes through
and is free to move in the slot G in arm B.
Fig. 1 shows the hooked sliding lever fastener with holes F F through which
the rivet or pin passes & is secured to; the hooked part E and the raised parts D
ready to receive the spring, before it is folded over to fit holder arm.
Fig. 1 shows the hooked sliding lever doubled or folded with a spiral spring
as shown in Fig. IV enclosed in or between the raised parts D, also the rivet F
passed through the holes F F as in Fig. II, as it would be when on arm B Fig. I
in the slot G along which it is free to slide.
Fig. IV shows the spiral spring as enclosed in parts D Fig. III.
Fig. V shows one form of mechanical equivalent that may be used instead of
the spiral spring & raised parts D as shown in Fig. III to hold the part C in
engagement with the teeth or notches A on top of arm, in which H is an edge
view of a lever jointed at I in holes pierced through projecting parts below the
holder arm on or from the hooked lever fastener, between which projecting parts
it is free to work; one end of lever H is heavier than the other and keeps the
lighter & shorter end by its weight in an upright or vertical position under arm B

page_text: in such a manner that, in order to disengage the part C from the notches A it is
necessary to pull the lever H into a horizontal position.
Fig. VI shows a sectional view of arm B and edge view of the hooked sliding
lever, & a side view of the lever H which works between it as described in
Fig. V.
Similar letters denote the same parts in the different figures.
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.
1st. In a globe or shade holder teeth or notches & a part to engage therewith
in conjunction with a hooked sliding lever for the purpose of holding the said
lever in position to secure a globe or shade placed upon or suspended from a
holder.
2nd. In a holder for globes or shades a hooked lever fastening capable of
sliding or being moved with its fulcrum in a suitably shaped slide or carrier, teeth
or notches, & a part to engage with said teeth or notches, to hold said hooked
lever fastening in position to secure a globe or shade to said holder and a spring,
lever, or mechanical equivalent to hold the part which engages with the teeth or
notches, and the teeth or notches in engagement with each other, or a plurality of
said parts on one holder.
3rd. In a holder for globes & shades the various parts either separately or any
combination thereof as and for the purposes hereinbefore described and as
illustrated in the accompanying drawings.
Dated this 26th day of May 1893.
JOHN HOWARD ROSS.