A Coin-freed Apparatus for Supply of Liquid.
Year: 1889

page_text: Date of Application, 14th Feb.. 1889
Specification Accepted, 30th Mar.,
1889
[Communicated from abroad by Messrs. GRIMME, NATALIS, & Co., of Brunswick,
Germany, Sewing Machine Manufacturers.]
A Coin-freed Apparatus for Supply of Liquid.
1, CHARLES BRADBURY of No. 37 Torrens Road, Brixton in the County of Surrey,
Agent, 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:
C
This invention relates to apparatus such that the introduction of a coin causes the
opening of a valve allowing discharge of a quantity of liquid. Fig. 1 of the
accompanying drawings is an elevation of the apparatus with the front of its casing
removed to shew the internal mechanism. Fig. 2 is a side view and Fig. 3 an end.
view to enlarged scale of the electric contact apparatus. The coin when introduced
descends a shoot a into the groove of an inclined lever of trough section which is
pivotted at c is counterpoised by a weight 61, and has a pin d projecting over a tube e
which is pivotted at e¹ and contains a little mercury. From one end of the tube is
suspended by insulating material a wire f of staple form, the limbs of which staple,
when the end of e is depressed as shewn in Figs. 2 and 3 dip into mercury in two
vessels g g which connect the poles of a voltaic battery B through the coils of an
electro-magnet A. When a coin introduced by a passes along the groove of the
lever bit weighs it down so that its pin d cants the tube e into the position shewn
at Figs. 2 and 3, whereupon the electric circuit is closed exciting the magnet A, the
loaded armature G is attracted upwards, a valve V the stem of which is attached to
the armature is opened and liquid flows from a vessel W containing it, out by the
pipe U. When the tube e is canted as shewn in Fig. 2 the mercury collected mostly.
at one end of the tube retains it in that position keeping the electric circuit closed
until e is canted back to the position shewn in Fig. 1. This is effected in the
following manner. The coin after leaving the lower end of the lever b passes along
an inclined shoot into the groove of another trough lever i counterpoised by a
weight. As the coin passes along the groove of i weighing it down a staple wire fl

page_text: becomes immersed in a pair of mercury vessels & which connect the poles.of a second
battery C through the coils of an electromagnet D. This magnet being excited
attracts its armature which is on one arm of a lever pivotted at . The other
arm which is bent at its end 12 so as to pass under the tube e, being thus raised
cants the tube e back to the position shewn in Fig. 1 thereby opening the circuit of
the magnet A, the armature of which descends closing the valve V and stopping the
outflow of liquid.
In some cases the apparatus may be simplified by dispensing with the tube e the
shoot, the lever the battery C, electro-magnet D, and lever 1, and suspending the
staple wire directly from the lever d.
In that case while the coin is passing along the groove of d weighing it
down the wire f being immersed in the mercury g, closes the circuit of the
battery B and the electromagnet A being thus excited attracts its armature opening
the valve V.
When the coin drops out of the groove of d it rises withdrawing the wire f from
the mercury, and the circuit being thus opened, the electromagnet A becomes inert and
the valve V closes.
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 I
claim is
1. Coin freed apparatus for supply of liquid wherein a coin in passing along the
groove of an inclined lever bears it down causing it to close an electric circuit whereby
an electro magnet being excited, attracts its armature opening a valve for issue of
liquid, substantially as described.
2. In combination with apparatus such as is referred to in the preceding claim, the
tube e with its contact wire f, the second grooved lever i with its contact wire f1, the
second battery C and electromagnet D with its armature arranged and operating
substantially as described.
Dated this 14th day of February 1889.
ABEL & IMRAY,
Agents for the Applicant.