Improvements in Connections for Electric Lighting and like purposes.
Year: 1893

page_text: Date of Application, 10th May, 1893-Accepted, 29th July, 1893
COMPLETE SPECIFICATION.
Improvements in Connections for Electric Lighting and like
purposes.
I GUSTAV BINSWANGER of No 76 Queen Victoria Street in the City and
County of London, Electric Engineer do hereby declare the nature of this inven-
tion 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 certain improvements in electrical connections, and has
for its objects the preservation of a good conducting or contact surface, when
exposed to the atmosphere out of doors, and also the construction of such con-
nections so that they may be readily connected or disconnected when required.
In order that my said invention may be the better understood, I have appended
the accompanying sheet of drawings, in which Figure 1 is a sectional elevation of
a connection for outdoor suspended shade lamps or the like, and Figure 2 is a front
elevation thereof.
Figure 3 is a side elevation, shewing the cover open, and the sliding contact
withdrawn.
Figure 4 is a back elevation, and Figures 5 and 6 back and front views of said
sliding contact respectively shewn detached.
Similar letters of reference indicate corresponding parts throughout the several
views.
In carrying my invention into effect, I construct a case or box A, with a base
plate a provided with screw holes or the like for attachment to a shop front, wall
or other fixture. A cover bis hinged to the upper part of a, and closes angularly
for the better protection of the interior parts. An inner cover c is pivotted within A,
and when the slide B is in position as shewn by Figure 1, c is pressed back against
the tension of a suitable spring d, which causes it to close when B is withdrawn as
shewn by the dotted outline Figure 3. The slide B which is shewn more par-
ticularly by the back and front elevations Figures 5 and 6. Two contact pieces ffl
properly insulated, are attached to B and correspond to two similar insulated
contact pieces g g', upon A when B is in place therein. Two terminals, h h³, serve
to connect the permanent leads or conductors. A nipple C is formed upon or
attached to B, and carries a screw thread or any suitable fastening at the lower
end e so that the removeable lamp or the like may be attached thereto. The
conductors are coupled to the terminals i i¹, and are passed through the hole ; down
the nipple C to the lamp, or the like.
In using this device according to my said invention, when it is desired to put the
slide B with what may be attached to it, in position within the fixed box A, the
lid 6 may be tipped up by raising B until the lower part is clear of A, then lowering
it, which opens the inner cover c automatically, and still lowering it, until the
The cover b
respective contact pieces 9 g¹ and ff¹ are in contact as shewn.
effectually protects the whole of the interior from the action of the weather, and
when the slide B is removed, the inner cover c keeps the contacts clear from dust
or the like, suitable holes being provided in the bottom of A to clear such matter
from c when it is depressed.
I may vary the shape or formation of the device without departing from the
essential principles of my said invention.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, declare that what I
claim is ;-
First. In electrical connections, the combination of a box A, hinged covers b

page_text: and c with a sliding contact B substantially as and for the purposes herein described,
with reference to the appended drawings.
Second. In an electrical connection the construction and employment of a sliding
contact, substantially as herein described with reference to the appended
drawings.
FREDK. WALKER,
Agent for Applicant.