Apparatus for Preventing the Insertion of Lead or other Substitutes for Coin in Automatic Coin Freed Machines.
Year: 1888

page_text: Date of Application, 18th Aug., 1888
Complete Specification Left. 18th June 1889-Accepted, 3rd Aug., 1889
PROVISIONAL SPECIFICATION.
Apparatus for Preventing the Insertion of Lead or other Substitutes
for Coin in Automatic Coin Freed Machines.
1 CHARLES INGREY of Oak House Fulham London S.W. in the County of
Middlesex Mechanical Engineer do hereby declare the nature of this invention to
be as follows:-
My invention has reference to improvements in Automatic Machines and has for
its object the prevention of fraud, and the stopping of the machine by the insertion
of lead cardboard, or other spurious substitutes for the coin legitimately required
to be used.
In carrying out my invention I employ a hinged plate having angular projections
or bolts so arranged that normally they occupy a position with respect to the
money-slot of the machine at an angle of about 45 degrees.
The said hinged-plate has its axes parallel to the money-slot, but at some
distance from it, so that its own weight tends to keep it in the normal position.
The operation of my invention is as follows:-If a coin of hard metal such as
Bronze, Silver, or Nickel be inserted in the slot, it will slide against the angular
projections or bolts of the hinged-plate and will force the hinged-plate outwards, the
action being somewhat analogous to that of the bolt of a door-lock against its
striking-plate; the coin can thus be passed down the slot to be used for the
legitimate purpose of the Automatic machine.
If a disc of soft. metal, cardboard, or other such material be inserted in the slot
it will engage with the angular projections or bolts, and offering greater friction
will not force the hinged-plate back, so that it remains stationary, and prevents the
disc from passing down the slot.
Dated IS IT G
17th day of August 1000.
COMPLETE SPECIFICATION.
Apparatus for Preventing the Insertion of Lead or other Substitutes
for Coin in Automatic Coin Freed Machines.
I CHARLES INGREY late of Oak House Falbam but now of 49 Queen Victoria Street
London E.C. 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 :-
My Invention has reference to and apparatus for preventing the insertion of lead
cardboard or other discs in imitation of coin, into automatic coin freed machines or
into other apparatus for the reception of coin and consists essentially in the employment
of a hinged plate or plates formed with jaws or teeth so arranged that when a hard
metal coin such as bronze, nickel, silver or other such metal is inserted it will slide
past the said jaws and force them outwards but if a soft metal disc such as lead,
tin, or their alloys, cardboard or other such material is employed it will not slide past
the said jaws, but will become indented and tend to force the said hinged plate
inwards so that the greater the pressure the greater will be the resistance-When the
coin of Bronze or other hard metal has passed beyond its diameter the jaws will tend
to close and ultimately resume their normal position so that the coin is free to pass
to its proper receptacle for operating the automatic coin freed machine or other
apparatus for the reception of coin.
I will now proceed to describe the operation of my invention reference being had
to the accompanying drawings of which
:-
Fig. 1. is a perspective view showing the coin inserted in the money slot &
forcing back the iowa of the hinged plate

page_text: Fig. 2. is a side elevation partly in section shewing the coin just entering the
money slot, the jaws of the hinged plate being in their normal position.
Fig. is a plan of same.
Fig. 4. is a side elevation partly in section shewing the coin inserted in the money
slot the jaws of the hinged plate being forced back.
Fig. 5. is a plan of same.
.Fig. 6. is a front view of same.
Fig. 7. is a plan of same looking from under side in the direction shewn by arrow
on Fig. 6.
Figs. 2. 3. 4. .5 6. & 7. are drawn to an enlarged scale for the sake of clearness.
a-is a hinged plate pivotted at b-and having at its upper part two angular
projections, teeth, or jaws c-which in their normal position cross the corners of the
money slot d―at an angle of about 45 degrees. The hinged plate a-is kept in its
normal position by a spring c-or instead of a spring f inay use a weight i-as
shewn by dotted lines Fig. 7. The money slot d-is provided with guides or
grooves for the purpose of guiding the coin g-When a hard metal:coin such as
bronze, nickel, or silver is inserted in the money slot and pressed down, its edges come
it contact with the jaws c-of the hinged plate and forces them outwards, and the
pressure on the coin being continued, the jaws return to their normal position when
the coin has passed into the slot beyond its diameter so that it is then free to fall
.into a position to actuate the mechanism of the automatic or other apparatus for the
reception of coin.
If a disc of lead card board or other such substitute for coin is attempted to be
inserted into the money slot.d-it will not slide past the said jaws, or teeth.c-nor
force them outwards, but will become indented so that the greater the
to force the disc in, the greater will be the resistance.
e. pressure used
The pivot b-of the hinged plato a-is at some distance away from the vertical line
of the money slot and consequently when a lead or other such disc is pressed against
the jaws c-the hinged plate instead of being forced outwards will tend to move
inwards.
In the arrangement I have now described I have shown the application of the
hinged plate to one side of the money slot but for greater security I may employ two
such plates as shewn in Figs. 8 and 9 of the drawings.
In this case the two plates are arranged so that the jaws of the one overlap the
jaws of the other and are drawn together by a spring. When a hard metal coin is
inserted the upper jaws are first moved outwards and as the coin descends the lower
jaws are operated.
If a lead or other such disc is attempted to be inserted the other jaws will
cause it to become. indented but should it. by..any means slide past the first jaws the
lower ones will come into operation.
In practice however I find the one hinged plate to be effective for most purposes.
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
1. claim.is:-
1. In an apparatus for the reception of coin the use of a hinged plate or plates
having jaws or teeth crossing the ends of the money slot at an angle, for the purpose
of resisting the insertion of lead, card board, or other such substitute for coin, substantially
. as described for the purpose specified.