An Improved Lamp Holder for Incandescent Electrie Lamps..
Year: 1899

page_text: Complete Specification Left, 21st Nov., 1899-Accepted, 13th Jan. 1900
.....
PROVISIONAL SPECIFICATION.
11
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An Improved Lamp Holder for Incandescent Electrie Lamps..
I, WILLIAM LYNES, 2, Wilton Road, Sparkhill, Birmingham, Brassfounder,
lo hereby declare the nature of this invention to be as follows:
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وو
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My invention consists of an improved lamp holder for incandescent électric
amps, and this improvement is devoted to the interior, as I use the bayonet
oint liner or case which is now in ordinary use; though I do not necess-
rily confine myself to this particular kind of "liner" or
The interior consists of 3 parts, viz.:
66
case.'
"
(a) A piece of china or any other insulating material, the outside of which I
form to fit the inside of the said "liner."
(b) Two terminals, made of brass or any other conducting material.
I will now describe these said parts in further detail.
(a) (1) I drill, press or mould two holes in a parallel direction from end to
end of the said part (a), each hole of a size and shape to fit each terminal,
and about half an inch apart (from centre to centre), and this distance
I vary according to the requirements of the lamps for which the holder
is made.
(2) I drill or otherwise make two pairs of holes laterally, either straight or
countersunk, each pair opening into each hole (1) from the opposite
direction, and from the outside, either in a line or obliquely. These said
holes I make of a size to take the screws mentioned hereinafter.
(b). Each said terminal I make square oval round or irregular shaped. At
the one end I make the usual plunger with a spring inside. I drill or
otherwise make, in the opposite end, a hole sufficiently large to admit the
required flexible cable or wire that is necessary for the transmission of the
current. Near the latter end of each said terminal I drill and tap two
holes each from the opposite direction.
1994,
For the sake of double security I make the two pairs of holes in the china (a)
and the corresponding holes in the interiors (b) and I use two screws, in each
terminal, all as herein before described, but my improved interior could be used
safely and securely by the aid of one screw in each terminal which would serve
the double purpose of holding the said terminal in each said hole in the said
insulator, and for holding the connecting wires. In this latter case it would be
only necessary to have two lateral holes in the insulator instead of two pairs.
Doted this 23rd day of February 1899.
WILLIAM LYNES.

page_text: inside of the tube M, or there would be a possibility of the said wire stopping the
action of the beforementioned spring.
I and J are the screws beforementioned.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what
I claim is:.
:-
An improved lamp holder with the interior substantially as herein described.
(1) The "Insulator" having two sets (of 3) holes, both sets being distinct
and separate from each other.
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(2) Each set containing within itself the complete "terminal."
(3) The lowering of the end K of the "terminal" into the cavity F of the
insulator," thus leaving a projecting partition of insulating material between
the two " terminals"; as well as a surrounding wall of insulating material
" and the
terminals
between the two
"
"
liner."
Dated this 18th day of November 1800