Apparatus for Compensating the Expansion and Contraction of Wires Used for any Purpose.
Year: 1887

page_text: PROVISIONAL SPECIFICATION.
Apparatus for Compensating the Expansion and Contraction of
Wires Used for any Purpose.
MICHAEL ELLIOTT Signal Inspector Bridge End Mallow Co. Cork Ireland do hereby
declare the nature of this invention to be as follows:-
In the centre of any lenght of wire I have a shaft, on one or both ends of this
shaft, I fix a ballance weight or weights. On this shaft I have Right and Left hand
scrow threads, (I term it cross cut screws), On this shaft I have two wheels or Drums,
in the holes in the centres, or Bosses, of which are threads to suit the screw threads
on the shaft, The Top surface of these wheels or Drums, are recessed to recieve
Chains, on the Ends of which I hang ballance weights On the other ends of the
Chains I attach the wires, one End to Right the other End to Left. When the wires
are at Rest, the wheels or Drums are apart, and maintain their relative positions
during the process of Expansion and Contraction, but when one wire is pulled the
wheels. or.Drums imediatly come together and form the two sections of wire into one
I have the two inner surfaces of the wheels or Drums serrated but the serrating is
not absolutely necessary to carry out my invention.
Dated the 4th day of January 1887.

page_text: Wires Used for any Purpose:
MICHAEL ELLIOTT Signal Inspector Bridge End Mallow Co. Cork, Ireland I,
Michael Elliott do hereby declare the nature of my invention for COMPENSATING THE
EXPANSION AND CONTRACTION OF WIRES USED FOR ANY PURPOSE and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement :-
In the centre of any lenght of wire I have a shaft; on one or both ends of this
shaft, I fix a Balance Weight or weights: On this shaft I have Right and Left Hand
Screw Threads "I term it a Cross Cut Screw" On this shaft I have two wheels or
Drums; in the Holes in the centres or Bosses of which are Threads to suit the Scrow
Threads on the shaft: The Top surface of these wheels or Drums are recessed to
receive Chains; on the ends of which I hang Balance Weights: on the other ends of
the Chains I attach the wires; one end to Right the other end to Left: When the
wires are at rest: the wheels or Drums are apart; and maintain their relative
positions during the process of Expansion and Contraction; but when one wire is
pulled the wheels or Drums immediately come together; and formi the two sections
of Wire into one.
I have the two inner surfaces of the wheels or Drums serrated; but this serrating
is not absolutely necessary to carry out my Invention.
I have the recesses on top surface of said Wheels or Drums sunk, so that the Links
of the Chain engages with; or falls into these recesses, so that said Wheels or Drums
änd Chains cannot move independant of each other.
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
1st. The sole use and application of aforesaid Cross Cut Screw Threads on one
Shaft as applicable to the purpose of Compensating the Expansion and Contraction of
Wires used for Signalling or any purpose.
2nd. Method of recessing Top surface of Wheels or Drums to engage with Chain
for the purpose of Compensating Expansion or Contraction of Wires used for
Signalling or any purpose.
Dated this 14th day of Annil 1007