Improvements in Electrical Cut Outs.
Year: 1891

page_text: Date of Application, 4th Dec., 1891
Complete Specification Left, 3rd Sept., 1892-Accepted, 22nd Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in Electrical Cut Outs.
I WALTER PAYNTER ADAMS of "Springwell" Barnes, in the County of
Surrey, Electrical Engineer, do hereby declare the nature of this invention to be
as follows:
My invention consists in so arranging the contacts of the cut out that the fuse
wire may be easily replaced without a screwdriver or other tool.
This is accomplished by using spring contact pieces substantially as described
below.
In the accompanying figure, which shews a small branch cut out without cover,
B, B, are pieces of metal to which the leading in wires are attached. The ends are
turned up at right angles, and, against the vertical part springs C, C, shewn black,
press. These are secured under the holding down screws.
All that is necessary in putting in a fuse is to stretch a piece of the wire across
the contacts and force it in between B, B & C, C.
Flat springs as illustrated are preferable to wire springs as they give a large
area for contact, though it might be found advisable to use the latter in certain
cases.
Modifications in the details may be made where necessary but the principle of
my invention is illustrated by the above description.
The accompanying drawing shews a small branch cut out but my invention may
be applied to any other form of cut out such as main, double pole, etc., and the
contact blocks may be made for any number of fuse wires or strips.
Dated this 3rd day of December 1891.
W. P. ADAMS.
COMPLETE SPECIFICATION.
Improvements in Electrical Cut Outs.
I, WALTER PAYNTER ADAMS of Springwell, The Terrace, Barnes in the
County of Surrey, Electrical Engineer, 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 :——
My invention consists in so arranging the contacts of the cut out that the fuse
wire, wires or strips may be easily replaced without a screwdriver or other tool.
This is accomplished by using spring contact pieces substantially as described
below.
In the drawing left with the Provisional Specification, which shews a small
branch cut out without cover, B. B. are pieces of metal to which the leading in
wires are attached. The ends are turned up at right angles, and against the vertical
part springs C. C. press. These are secured under the holding down screws.
All that is necessary in putting in a fuse is to stretch a piece of the wire across
the contacts and force it in between B. B. and C. C. Both B. B. & C. C. may be
made of spring metal if necessary.
Modifications in the details may be made where necessary but the principle of
my invention is illustrated by the above description.
My invention may be applied to any form of cut out such as main, double pole,
branch etc. and the contact blocks may be made for any number of fuse wires or
strips.

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim is:-
:-
(1.) The employment of spring contact pieces for cut outs to enable the fuse
wire, wires or strips to be easily replaced substantially as described.
Dated this 2nd day of September 1892.
WALTER P. ADAMS.