Improvements in Cut-outs for Electrical Purposes.
Year: 1899

page_text: COMPLETE SPECIFICATION.
Improvements in Cut-outs for Electrical Purposes.
I, THOMAS TAYLOR, of Rosendale, The Bramptons, Newcastle, in the County of
Stafford, Manufacturer, do hereby declare the nature of this invention, and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
This invention relates to cut-out for electrical purposes, and is an improve-
ment upon or development of the invention described in the Specification of
Letters Patent granted to William Paul Theerman, dated the 11th day of
December 1896 No. 28347.
The principal objects of my present invention are to increase the length of the
fuze wire without having to relatively increase the size of the article, and to
provide for the efficient covering up or isolation of the said wire, and this I
propose to obtain, according to one form of my invention, by forming through
the material of the insulating or non-conducting base of the cut-out a pair of
open-ended passages or tunnels through which the fuse wire passes in proceeding
from the one terminal to the other, or, according to a modification, by the
employment of a pair of open-topped passages or channels within which the fuse
wire is located.
Figure 1 of the accompanying drawing represents a topside plan of a cut-out
(with the cover removed) constructed according to my invention, with the base
of the same being formed with a pair of tunnel-like open-ended passages, dis-
posed at an angle relative to one another and through which the fuse wire is
directed in proceeding from the one terminal and returning to the other.
Figure 2 is a front elevation of Figure 1.
Figure 3 is a horizontal section of the cut-out base, taken upon the dotted
line, Figure 2, with the terminals removed
Figure 4 represents a partial vertical section of Figure 1 upon the dotted
line x¹.
Figure 5 is a partial longitudinal vertical section of Figure 1 upon the dotted
line.
The same letters of reference indicate corresponding parts in Figures 1 to 5.
a is the base of the cut-out, which is made of earthenware or other insulating
material and b is a boss or table formed on the top thereof, having formed within
it, a pair of open-ended and obliquely disposed passages or tunnels 61, 62, are
made wherethrough the fuse wire c, passes. The ends c', of the said fuse are
respectively connected to a pair of terminals d, let within recesses 6³, on one
side of the table or boss and being insulated from one another by an intervening
wall of non-conducting material 6, which prevents short-circuiting between
them. The tunnels terminate in an angular gap b, which both facilitates the
threading of the fuse and provides for the inspection of the wire to ascertain
whether or not it has fused.
By thus forming the base, accommodation is provided for arranging a consider-
able length of fuse wire between the terminals, as is desirable with the high

page_text: voltage currents now in general use, but without in any way increasing the
dimensions of the cut-out.
Figure 6 represents a plan of a modified form of cut-out, in which the fuse
wire is directed within open channels sunken within the top of the table or boss
of the cut-out base.
Figure 7 is a part cross section and part back edge view of Figure 6 upon the
dotted line ³.
a is the base, 61, 62, the channels, which are obliquely disposed relative to one
another and along which the fuse wire c, passes in proceeding from the one to
the other of the terminals d.
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:
-
First: In electrical cut-outs, forming within the insulating base, or within
a boss or table upon the said base, a pair of open-ended passages or tunnels
wherethrough the fuse wire passes in proceeding from the one terminal to the
other, substantialy as and for the purpose as described and set forth.
Secondly-In electrical cut-outs, forming upon the top of the base, or upon a
boss or table thereof, a pair of channels along which the fuse wire passes in
proceeding from the one terminal to the other, substantially as and for the
purpose described and set forth.
Dated this 10th day of June 1899.
THOMAS TAYLOR.
By Henry Skerrett,
24, Temple Row, Birmingham, Agent for Applicant.