Improvements in Coin Freed Telephonic Apparatus.
Year: 1894

page_text: Date of Application, 16th Oct., 1894
Complete Specification Left, 16th July, 1895-4ccepted, 5th Oct.,
1895
PROVISIONAL SPECIFICATION.
Improvements in Coin Freed Telephonic Apparatus.
I, WILLIAM MILLER, of 26 Alfred Street, City Road, in the County of
Middlesex, Electrical Engineer, do hereby declare the nature of this invention to
be as follows:-
In the Specification No. 5528 of 1892 there is described apparatus such that
on inserting a coin and moving a push or handle, a telephonic circuit is closed
and maintained for a certain time, determined by clockwork wound up by the
movement of the push or handle. The present invention relates to apparatus of
this kind, of improved construction, as follows. The handle is on a sleeve which
can be turned round the axis of the clockwork spring. There is a slot through
this axis and a wider slot through the sleeve, immediately under the coin shoot so
that, when a coin is introduced, it lodges partly in the slot of the axis and partly
in that of the sleeve, and consequently; on turning the handle and sleeve, the axis
is also partly turned, winding up the spring of the clockwork and making a contact
such that when the handle is let go and returned to its normal position by a spring,
the telephonic circuit is closed. The pressure of the sleeve on the coin being
thus relieved, the coin drops into a receptacle. The axis then slowly turns back,
subject to the retarding action of a flyer driven by the clockwork, and the
telephonic circuit is maintained until the axis returns to its normal position, in which
position it is stopped, and the telephonic circuit is opened. When a coin, smaller
than that for which the apparatus is intended, is introduced, it simply drops
through the slot in the axis and issues by an opening below. When a coin has
been introduced and the clockwork started, a slide is moved by a spring across the
coin slot, so that another coin cannot be introduced until the clockwork axis has
returned to its normal position, where it moves the slide away so as to reopen the
coin slot. In front of the apparatus there is a dial over which moves an index
attached to the axis, to shew that the axis is at either of its extreme positions or
at some intermediate position. The dial may be graduated to shew the number of
minutes during which the circuit has been closed, and the number that will elapse
before it is reopened.
Dated this 16th day of October 1894.
ABEL & IMRAY,
Agents for the Applicant.
Improvements in Coin Freed Telephonic Apparatus.
I, WILLIAM MILLER, of 26 Alfred Street, City Road, in the County of
Middlesex, 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 :-
In the Specification No. 5028 of 1892 there is described apparatus such that on
inserting a coin and moving a push or handle, a telephonic circuit is closed and
maintained for a certain time, determined by clockwork wound up by the movement

page_text: of the push or handle. The present invention relates to apparatus of this
kind, of improved construction, as I shall describe referring to the accompanying
drawings.
Fig. 1 is an external perspective of the casing which contains the mecbanism
and contacts,
Figs. 2 and 3 are respectively back and side views, the clockwork and sides of
the casing being removed;
Fig. 4 is a plan, the cover of the casing being removed,
Fig. 5 shews the condition of the axis with a coin engaged in its slot, and
Fig. 6 shews the coin in the act of dropping from the slot of the axis.
The handle H is on a sleeve S which can be turned round the axis A of the
spring which drives clockwork in a case C. There is a slot through the axis A and
a wider slot through the sleeve S immediately under the coin shoot B so that,
when a coin D is introduced, it rests on a pin X being lodged partly in the slot of
the axis A and partly in that of the sleeve S, and consequently, on turning the
handle H and with it the sleeve S, the axis A is also partly turned, winding up the
spring of the clockwork and making contacts such that, when the handle H is let
go and returned to its normal position by a spring E, the telephonic circuit is closed,
as will hereafter be described. The pressure of the sleeve on the coin being thus
relieved, the coin drops into a receptacle R. The axis then slowly turns back,
subject to the retarding action of a flyer driven by the clockwork, and the
telephonic circuit is maintained until the axis returns to its normal position, in
which position it is stopped, and the telephonic circuit is opened. When a coin
has been introduced and the clockwork started, a slide F is moved by a spring
across the coin slot B, so that another coin cannot be introduced until the clock-
work axis has returned to its normal position. In front of the apparatus there is
a dial G over which moves an index attached to the axis A, to shew that the
axis is at either of its extreme positions, or at some intermediate position. The
dial may be graduated to shew the number of minutes during which the circuit has
been closed, and the number that will elapse before it is reopened.
When the time has elapsed, the index I returning to its zero position pushes aside
the slide F reopening the coin slot for reception of another coin.
An arm J fixed to the sleeve S normally rests in the position shewn in Figs. 2
and 3 breaking spring contacts at j which, in case the arm J should be raised by
turning the handle H, effect short circuiting and thus throw the telephone out of
use until the arm J is again allowed to descend and break the contacts j. An
arm K fixed to the axis A has insulated on it two pieces of metal k each of which
in the position shewn in Fig. 2 connects a pair of contact springs thus short
circuiting the telephone leads, and preventing the telephone from operating. But
when by turning the handle, when a coin is in the slot of the axis, the arm K is
moved to the position shewn in Fig. 5, away from the spring contacts 1, these are
no longer short circuited and consequently the telephone acts until, by the move-
ment of the clockwork, the arm K again comes to the position shewn in Fig. 2
short circuiting the two pairs of springs and so stopping the telephone.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed, I declare that what 1
claim is:
--
Coin freed telephonic apparatus constructed and operating substantially as
described with reference to the drawings.
71
101
T 1
1000
ABEL & IMRAY,
Agents for the Applicant.