An Improvement in Electric Safety Fuses.
Year: 1895

page_text: Date of Application, 26th Oct., 1895
Complete Specification Left, 15th July, 1896-Accepted, 15th Aug., 1896
PROVISIONAL SPECIFICATION.
An Improvement in Electric Safety Fuses.
We, THE EDISON AND SWAN UNITED ELECTRIC LIGHT COMPANY
LIMITED, and CHARLES FARADAY PROCTOR, all of No. 36 Queen Street,
Cannon Street, in the City of London, Electrical Engineers, do hereby declare
the nature of this invention to be as follows:-
Our invention relates to the construction of electric safety fuses and their
holders in such a manner that they make good contacts with their holders and
admit of being readily removed and replaced.
For this purpose we provide a bridge piece of ceramic or other insulating
material of like character which has a U shaped piece of elastic metal such as
brass attached to its underside at each end by a bolt and nut, the nut clamping
between it and the piece of metal, one end of the lead fuse wire, which extends
from the one piece to the other under the bridge. On a suitable board or base at
a distance apart equal to the space of the bridge piece we fix two L shaped metal
supports which have their upright limbs notched to receive the U shaped metals of
the bridge piece. On pushing these down into the notches they, in virtue of their
elasticity, press against the sides of the notches making good contact, and the lead
fuse wire then electrically connects the two ☐ shaped supports which have the
conducting wires attached to them. When one main conductor has to supply a
number of branch wires each through a fuse, we attach the main conductor to a
continuous shaped bar which has as many notches as there are branches, and
facing these notches we fix separate lengths of bar each notched and each having
one of the branch wires attached to it.
Dated this 26th day of October 1895.
ABEL & IMRAY,
Agents for the Applicants.
COMPLETE SPECIFICATION.
An Improvement in Electric Safety Fuses.
We, THE EDISON AND SWAN UNITED ELECTRIC LIGHT COMPANY
LIMITED, and CHARLES FARADAY PROCTOR, all of No. 36 Queen Street,
Cannon Street, in the City of London, Electrical Engineers, 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 :-
Our invention relates to the construction of electric safety fuses and their
holde in such a manner that they make good contacts with their holders and
admit of being readily removed and replaced.
For this purpose we construct and arrange the fuse holders as we shall describe
referring to the accompanying drawings.
Fig. is a side view and Fig. 2 a transverse section of a fuse holder according
to orention.
is an end view and Fig. 4 a plan of a frame for accommodating a number
of these holders.
D671

page_text: We provide a bridge piece D of ceramic or other insulating material of like
character which has a U shaped piece C of elastic metal such as brass attached to
its underside at each end by a bolt and nut B, each nut clamping between it and
the piece of metal C the end of the lead fuse wire L, which extends from the one
piece C to the other under the bridge. Ou a suitable board or base A at a
distance apart equal to the span of the bridge piece D we fix two L shaped metal
supports M N which have their upright limbs notched to receive the U shaped
metals C of the bridge piece D. On pushing these U shaped pieces down into the
notches of M and N they, in virtue of their elasticity, press against the sides of the
notches making good contact, and the lead fuse wire then electrically connects
the two shaped supports M and N which have the conducting wires attached to
them. When one main conductor has to supply a number of branch wires each
through a fuse, we attach the main conductor to a continuous L shaped bar N
which has as many notches as there are branches, and facing these notches we fix
separate lengths of bar M each notched and each having one of the branch wires
attached to it.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. A holder for an electric safety fuse consisting of a bridge piece having at
each end elastic U shaped metal pieces to which the ends of the fuse wire are
clamped substantially as described referring to Figs. 1 and 2.
2. A frame or fuseboard for accommodating a number of the fuse holders,
substantially as described with reference to Figs. 3 and 4.
Dated this 15th day of July 1896.
ABEL & IMRAY,
Agents for the Applicants.