Improvements in Apparatus for Supporting or Carrying and Connecting the Wires of Acoustic Telephone Circuits.
Year: 1885

page_text: Improvements in Apparatus for Supporting or Carrying and
Connecting the Wires of Acoustic Telephone Circuits.
I GEORGE LEE ANDERS of 90 Worship Street in the County of Middlesex do
hereby declare the nature of this Invention to be as follows:-
The principal object of my Invention is to facilitate the transmission of acoustic
vibrations in Telephone circuits by providing means for supporting the wires and
carrying them through any desired angle.
According to my Invention I provide at each place where the wire is to be
supported or its angle changed a light pulley having a groove in its periphery to
receive the wire. Between the body of the pulley and its axis is placed a yielding
material preferably a piece of pure soft rubber tubing the axis of the pulley is
supported in a suitable carrier which in turn may be mounted upon a centre
carried by a bracket or other suitable fixed support so that the pulley can be
turned to suit any desired angle In order to readily connect the wire to the
diaphragms of telephonic instruments I attach one of these acoustic pulleys to the
casing of the instrument in such a position that the wire attached to the diaphragm
at right angles thereto may pass from the casing of the instrument parallel to the
plane of the diaphragm For signalling on the wire I may take advantage of
the possibility of mechanically rotating the acoustic pulleys and give the signals
by pulling the wire and to enable the wire during this pulling to move to the
requisite extent and still be kept taut I provide a spring or weighted attachment
to one or more of the pulleys which will yield sufficiently to the pull to give the
signal-The signal may be connected to any part of the apparatus which is moved
on pulling the wire as aforesaid.
In order to readily connect the various circuits of a system for the transmission
of the sound as required I provide in connection with the diaphragm of the
instrument a short length of the circuit or wire which by a suitable attachment
can be secured to any of a series of line wires contiguous thereto.
T

page_text: L
Connecting the Wires of Acoustic Telephone Circuits.
I, GEORGE LEE ANDERS of 90 Worship Street in the County of Middlesex 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
The principal object of my Invention is to facilitate the transmission of acoustic
vibrations in telephone Circuits by providing means for supporting the wires and
carrying them through any desired angle.
According to my invention I provide at each place where the wire is to be
supported or its direction changed, a light pulley having a groove on its periphery
to receive the line or wire, as shewn in elevation in Figure 1, section in Figure 2,
and plan in Figure 3, of the accompanying Drawings where the pulley is marked A
and the groove a.
Between the body or boss of the pulley and its axis B is placed
a yielding or springy material C, preferably a piece of pure soft rubber tubing.
The axis B of the pulley is supported in a suitable carrier D which in turn may be
screwed to or mounted on a bracket or upon a centre carried by a bracket or other
suitable support so that the pulley can turn or be adjusted or fixed to suit any
desired angle. Such a bracket with the pulley attached is shewn in figures 4, 5
and 6. In order to readily connect the wire to the diaphragms of telephonic
instruments, I attach one of these acoustic pulleys or an equivalent device to the
casing of the instrument in such a position, (as shewn at A in the section in
figure 7 and plan in figure 8,) that the wire e, attached to the diaphragm fat right
angles thereto, may pass from the casing G of the instrument at any convenient or
desired angle or direction preferably in a direction parallel to the plane of the
diaphragm, as shewn clearly in figure 7. For signalling on the wire, I may take
advantage of the possibility of mechanically rotating the acoustic pulleys herein-
before described and give the signals by pulling the wire and to enable the witc
during this pulling to move to the requisite extent and still be kept taut I provide
a spring or weighted attachment to one or more of the pulleys which will yield
sufficiently to the pull to give the signal Figure 9 shews diagrammatically a
convenient arrangement for this purpose Gare the telephonic instruments
the line wire and A are the acoustic pulleys over which the line passes hare
pulleys carrying weights h² provided for enabling the signalling to be done as
herein before described The signal may be connected to any part of the apparatus
which is moved on pulling the wire as aforesaid.
€ is
In order to readily connect the various circuits of a system for the transmission
of the sound as required I may provide in connection with the diaphragm of the
instrument a short length of the circuit or wire which by a suitable attachment
can be secured to any of a series of line wires contiguous thereto.
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. For carrying or supporting a conducting wire or line in connection with
a mechanical telephone a pulley or wheel mounted on an elastic fulcrum or axis

page_text: and capable of rotating or vibrating in a rotary direction in unision with the
longitudinal vibrations of such wire substantially as hereinbefore described and
whether the same be used with or without a bracket or support capable of allowing
the latter to be fixed at, or to be moved to, any desired angle substantially as
hereinbefore described.
Second. In a mechanical telephone the combination in one instrument of a case
a diaphragm a conducting wire or line and a line guide or pulley to lead out such
wire or line at any desired angle substantially as herein before described.
Third. A telephone wire or line supported as herein before described and claimed
in combination with means for signalling by the longitudinal movement of the
wire or line substantially as herein before described.