Improvements in Electrical, Gas, or other Lamp Globe or Shade Holders.
Year: 1889

page_text: Date of Application, 26th Mar., 1889
Complete Specification Left, 30th Nov., 1889-Accepted, 28th Dec., 1889
PROVISIONAL SPECIFICATION.
Improvements in Electrical, Gas, or other Lamp Globe or Shade
Holders.
1 ELIJAH ATKINS, of Hall Road, Handsworth, in the county of Stafford, Manu-
facturer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in means for clipping, holding, or sustaining,
electric, gas, or other lamp globes, shades, or glasses, or other analogous purposes, and
consists of a device, having three or more claws or clips surrounding and taking hold
of the said globes &c., to which is imparted a sliding motion inwards or outwards,
for their fastening; the former when such globes &c. have a turned up edge, and the
latter, when the said globes &c: have no such turned up edge, but are left plain; and
in the arrangement of such parts constituting such device.
Assuming for instance the application of these my improvements to the securing
of a globe having its edge turned up flangewise, I should proceed somewhat thus: 1
provide a metallic band, somewhat larger in diameter than the outer diameter of the
turned up edge or flange. This band is carried from the main bracket or fitting, and
in the case of an electric light, would be of a closed in cup shape, that is, without
perforation or opening; but with gas &c. lamps, it may be carried by three or more
arms &c. from the said fitting.
Within this metallic band is fixed an inner concentric ring, of a smaller diameter
than the said band, and connected thereto by three arms, parallel in their width, and
soldered or otherwise secured to the said band at their outer ends. At suitable
points in this ring are three pegs or projections, standing out therefrom upon its
surface.
Again, I provide what may be termed a trieccentric ring, that is, a metallic ring,
(of a diameter covering the aforesaid concentric ring), consisting of three parallel
parts, each one third part being eccentric to the common centre.
Three slots are formed in this trieccentric ring, which together form part of a circle
corresponding to, and engaging with the pegs or projections aforesaid upon the con-
centric ring.
In the before mentioned metallic band, and for the distance of a little less than one
third of its circumference I make a parallel slot.
From the side of the trieccentric
ring I further make an arm or extension, which passes through this circumferential
slot, having its outer end screw threaded, and upon which is placed a tightening
screw nut.
Again, I now form three sliding claws or clips, preferably from sheet metal,
having their upper parts bent or formed into the said claw or clip shape, and their
under part formed to embrace the three parallel eccentric portions of the trieccentric
ring, and also to slide along the three arins which connect the concentric ring to the
outer metallic band.
Thus, upon turning the trieccentric ring round, by means of the extended arm,
the pegs or studs engaging with its slots, control it in a circular motion, while its
trieccentric parts, act upon the claw slides, and cause them to close or expand, as
the case may be, while further, by means of the tightening nut, the whole may be
firmly secured in any desired position.
The details of this my invention may be modified without departing from its nature,
as for instance, the claws may be made to take hold of or grip the inside edge of a
globe, upon their outward motion; or a larger number of grips may be used, but
preferably not less than three; or, instead of a tightening nut and screw upon the
extended arm, I may employ teeth or serrations upon the band, and a pawl or click
to take thereinto, or other equivalent device.

page_text: Thus by these means, "flanged or flangeless globes &c., may be firmly held, either
in the ordinary manner, or in an inverted (electric) position.
Dated this 25th day of March 1889
CHARLES T. POWELL,
Applicant's Agent.c
COMPLETE SPECIFICATION.
Improvements in Electrical, Gas, or other Lamp Globe or Shade
Holders.
I, ELIJAH ATKINS, 12 Cherry Street, Birmingham, 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 :-
This invention relates to the construction of holders for securing the globes,
shades or the like for gas, electrical or other lamps as will be described with reference
to the accompanying drawings.
Fig. 1 is a section and Fig. 2 is a plan of a holder according to this invention
for securing a globe or shade which is provided with an outwardly turned lip or
flange. Fig. 3 is a section shewing the holder applied to a globe or shade which
has no such flange or lip, Fig. 4 is a plan shewing the catches of the holder
retracted and Fig. 5 shows them protruded. Fig. 6 is a plan of one of the catches
before it is bent Fig. 7 is a side view and Fig. 8 an end view of it when bent.
A is a socket which may be stamped out of thin metal sheet and ornamented as
desired. B is a ring made with two projecting arms which have their ends
bent upwards and rivetted to the upper lip of the socket A as shown at a Fig. 1.
At three points of the outer circumference of the ring B project guide arms 61
and at three points of its inner circumference tongues c of the sheet metal of which
the ring consists are bent upwards to form guide studs for an upper ring D which
has 3 concentric slots in which the studs care respectively engaged.
The ring has also an arm d that projects through a slot of the socket A and
outside A is bent into a round form to which the fingers can be applied to turn
the ring D round through nearly one third part of a revolution. The ring D is
formed as a triple cam, that is to say three parts of both its internal and external
circumference are made eccentric to the slots in which the studs c are engaged, and
each of those eccentric parts of I) is embraced by a catch E which is a piece of
metal of the cross shape shewn by Fig. 6 having an end limb e as shown in
Figs. 7 and 8 is bent upwards in a rounded form, two side limbs e e¹ which are
bent downwards and inwards and another end limb e² which is bent downwards
and backwards. Thus the bent limbs e¹ e¹ and e² are made to enclose and embrace
the eccentric parts of the ring D and also the projecting guides of the ring B.
When the globe or shade F has a lip or flange as shewn in Fig. 1, the ring D,
by applying the fingers to the projecting part d is turned partly round so as to
protrude the catches E far enough to allow the flange to be inserted within them,
and then the ring D) is turned backwards so as to retract the catches E causing
their upper bent limbs to engage over the flange f. When the globe or shade F
has no lip or flange as shewn in Fig. 3, the catches E are first retracted, and the
globe or shade F being inserted, they are protruded so that the bent parts e of
the catches E engage over the inner edge of the globe or shade.
The ring D is made to turn always concentrically with the socket being guided by
the engagement of the studs c in its concentric slots. The catches E are moved
inwards or outwards by the eccentric parts of the ring D and are prevented from
moving round by their engagement with the guide arms of the ring B.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is:-
1.
A holder for a lamp globe or shade consisting of a socket and fixed, thereto by

page_text: arms a ring having three upwardly projecting studs and outwardly projecting guide
arms and an upper ring guided to turn concentrically and having three eccentric
parts embraced by radially sliding catches engaging the lips or edge of the globe or
shade, substantially as described and illustrated by the drawings.
Dated this 30th day of November 1889
ABEL & IMRAY,
Agents for the Applicant.