An Improvement in Electrical Fuses and Cut Outs, chiefly applicable to the Bridge Fuse.
Year: 1898

page_text: Date of Application, 23rd May, 1898
Complete Specification Left, 23rd Feb., 1899-Accepted, 29th Apr., 1899
Date of Application, 23rd May, 1898
Complete Specification Left, 23rd Feb., 1899-Accepted, 29th Apr.,
1899
PROVISIONAL SPECIFICATION.
An Improvement in Electrical Fuses and Cut Outs, chiefly applicable
to the Bridge Fuse.
ARTHUR WELLINGTON SOWRY, Electrician, and HERBERT EDWIN MUNSLOW,
Electrician, both of 2, Hafer Road, Clapham Junction, London, S.W., do hereby.
declare the nature of this invention to be as follows:-
A mechanical means whereby the meeting of an electrical fuse wire may be
detected, preferably by shewing a coloured disc.
We specify no particular means by which this may be done as there are a
variety of ways that can be employed, all to obtain the same result.
The idea is chiefly applicable to the bridge fuse.
The idea is to have a tension upon the fuse wire, either by a spring or weight,
which, when such fuse is broken would release such spring or weight and in
some manner indicate such particular fuse.
113 11
011
1000
HERBERT EDWIN MUNSLOW.
ARTHUR WELLINGTON SOWRY.
An Improvement in Electrical Fuses and Cut Outs, chiefly applicable
to the Bridge Fuse.
ARTHUR WELLINGTON SOWRY, Electrician, of 2, Hafer Road, Clapham June-
tion, in the County of Surrey, and HERBERT EDWIN MUNSLOW, Electrician, of
2, Hafer Road, Clapham Junction, in the County of Surrey, 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 state-
ment:―
The object of this invention is to provide an indicator to show when the fuse
wire has fused. It is usual to put fuses together at the point of distribution
and it is often difficult, without referring to elaborate lists, to discover which
fuse has gone.
In carrying out our invention an indicator disc or some similar device, is
actuated by a spring or weight suspended as long as the fuse is intact, but
which falls down when the fuse wire is broken. One method of arranging this
is shown in the accompanying drawing where:-
Fig. 1 represents side elevation of complete fuse.
Fig. 2 is a plan showing two adjacent fuses.

page_text: Fig. 3 is a front elevation of cover of porcelain or other suitable material.
Referring more particularly to Fig. 1 A represents the fuse wire soldered into
the two contacts B, held between the clip C. Attached to it by a hook or other
suitable means is a flexible wire D), passing through the hole E in the cover C
and secured to a disc F. Upon the melting of the fuse wire the flexible wire is
released allowing the disc to fall by gravity.
It is evident there are many ways in which a similar result may be obtained.
The fuse wire may be put under tension and on springing open would actuate
the indicator, in fact any of the indicators now used for electric bells or the
equivalent could be actuated by the fusing of the wires.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that
what we claim is:-
1. A combination of a safety fuse and indicator substantially as described.
2. A safety fuse fitted with an indicating disc which is held in position as
long as the fuse wire is intact but falls down when the fuse wire is severed.
Dated this 22nd day of February 1899.
ARTHUR WELLINGTON SOWRY.
HERBERT EDWIN MUNSLOW.