IMPROVEMENTS IN EARTHCLIPS EMPLOYED IN FORMING ELECTRICAL CIRCUITS
Year: 1885

page_text: Circuits.
I ALFRED WHALLEY, of 5 Exchange Street, Blackburn, in the County of
Lancaster, Electrical Engineer, do hereby declare the nature of my said invention
for "IMPROVEMENTS IN EARTHCLIPS EMPLOYED IN FORMING ELECTRICAL CIRCUITS "
to be as follows:-
In forming most electrical circuits in which the earth is used to complete the
circuit, electrical connection to the earth is obtained by attaching a wire to a
lead water pipe which is generally embedded in a wall or in the plaster thereon
and the object of this my invention is to secure the connection of the wire to the
pipe electrically both without the necessity of soldering and without the necessity
of disturbing or removing the pipe from the wall.
For purpose aforesaid I employ a pair of serrated or toothed nipping jaws curved
or semicircular so as to adapt the jaws to the form or diameter of pipe-The jaws
at their other extremities by screws or springs are capable of expansion or con-
traction so as to grip or release the lead pipe. without displacement of the latter
and on the wire being attached to the spring or secured by the head of one of the
screws the electrical connection is completed.
WALTER BRIERLEY,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Earthclips Employed in Forming Electrical
Circuits.
I ALFRED WHALLEY of 5 Exchange Street, Blackburn, in the County of
Lancaster, Electrical Engineer, do hereby declare the nature of my invention for
IMPROVEMENTS IN EARTHCLIPS and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement:-
In forming most electric circuits in which the earth is used to complete the
circuit, electrical connection to the earth is obtained by attaching a wire to a lead
or other metallic water pipe which is generally embedded in a wall or in the
plaster thereon, and the object of this my invention is to secure the connection of
the wire to the pipe electrically both without the necessity of soldering and
without the necessity of disturbing or removing the pipe from the wall.
Such being the nature and object of my said invention the following is a com-
plete description of same, reference being had to the accompanying drawings
forming a part of the specification in which
Fig. 1. is an end view of pipe illustrating (plan view) of my improved clip in
position.
Fig. 2. is side view of clip.
Figs. 3. and 4 are like views of clips and spring.
At 1. and 2. are a pair of serrated or toothed nipping jaws curved or semicircular
so as to adapt the jaws to the form or diameter of pipe 3. and at 5 is an
adjusting screw by means of which (having first slacked or turned back the
screw 6) the jaws 1.-2 are distended (to diameter of pipe 3.) and the arms thereof
are set parallel as shewn in Fig. 1. the screw 6. binds the jaws to and upon the
pipe 3, and the head of screw 6 also serves to connect the wire 7. to the clip by
nipping the wire under the head of the said screw, the wire may be soldered or
otherwise connected with the clip and it will be understood that by adjusting the
screws 5. and 6 that the jaws 1.-2. may be set to take pipes of different
diameters.
At Fig. 3 the spring 6 is the equivalent of the tightening screw 6. of Fig. 1. its
action being to grip and hold the jaws 1.-2. by contraction upon pipe 3.
Having thus particularly described and ascertained the nature of the said
Invention and in what manner the same is to be performed I delare that what
I claim is
1. The serrated nipping jaws 1.-2-expanded and contracted by means of a
screw or spring as described and illustrated and for purpose set forth.
2. The serrated nipping jaws such as 1. 2. expanded and contracted by means
of screw or spring, a pipe wire 7 and wire holding screw 6. all in combination and
for purpose herein set forth.
Dated 1
SML 1000
WALTER BRIERLEY,
Agent for the Applicant.