Improvements in Coin-actuated Machines for Providing Amusements of Chance.
Year: 1890

page_text: Date of Application, 28th Mar., 1890
Complete Specification Left, 29th Dec., 1890-Accepted, 7th Mar., 1891
PROVISIONAL SPECIFICATION.
Improvements in Coin-actuated Machines for Providing Amusements
of Chance.
We, ARTHUR RICHARD BROWN, Engineer, of The Park, Harrow, in the County
of Middlesex, and EDWIN CHAMBERS JOHN DEVIS, Engineer, of Laurel Cottage,
School Road, Moseley, near Birmingham, in the County of Warwick, do hereby
declare the nature of this invention to be as follows:-
The object of our invention is to provide improved means for actuating by
electric power, after the insertion of a predetermined coin or coins,-machines for
exhibiting games or amusements of chance or such as depend in some measure on
chance, though their operation may be, in a limited degree, controllable by or
dependent on the skill or practice of the operator.
We provide one or more electric battery cells inside the case of the machine and
connect them to an electro-motor which may be one of the ordinary revolving type,
preferably with multiple magnets and armatures, or may be of a reciprocating type,
similar to the mechanism of an ordinary electric bell, the hammer of which acts on
the surface of a wheel or pinion directly or indirectly connected with the revolving
exhibiting member of the machine, the surface of such wheel or pinion being con-
structed either of solid wood, vulcanite, india-rubber, or other suitable material, or
in the form of a brush having inclined bristles or plates of steel, hard brass, or other
suitable material.
The electric circuit through the battery and motor is normally broken at some
convenient point such that when the coin is inserted the poles are connected and the
circuit thus completed. For instance the pushing of the coin into the machine may
push a lever, spring, or other piece forming one pole into contact with the other
pole and after a short interval the circuit may be broken again either by the weight
or impact of the coin itself, by an independent time switch, or by a stop or striker
actuated by centrifugal force supplied from one of the revolving parts of the
mechanism.
In some cases we allow the coin to pass into an inclined divided shoot the two
parts of which form the two poles which are thus connected by the coin itself. The
duration of the current is determined by the length and inclination of the shoot
down which the coin slides or rolls under the action of gravity, which we preferably
augment by vibration derived from the motor.
To ensure good contact between the coin and the shoot the latter may be furnished
with a bed of fine wires or plates on which the coin rests and which yield downwards
as the latter passes over them, and in some cases, in order to obtain more pressure
at the points of contact than is due to the weight of the coin only, we make the shoot
vertical or nearly so, the two halves being pressed towards each other either by
their weight or by a spring or springs, and in this case we sometimes arrange for the
coin to move upwards instead of downwards by making the pressure and the angle
of convergence between the two parts of the shoot or slide sufficiently great to
overcome the effect of gravity.
In other cases we allow the coin to pass between two or more rollers forming
the two poles and one or more of which revolves slowly when the circuit is com-
pleted, thus gradually passing the coin out of the circuit; and sometimes we
arrange that the circuit is not completed by the mere insertion of the coin, but by
actuating a pull or push bar or its equivalent after insertion of the coin.
We set the poles sufficiently wide apart to allow the free passage between them of
coins smaller than those intended to work the machine, or provide for the disposal
of the smaller coins without working the machine, before they reach the poles, but

page_text: in some cases we allow the coins to fall onto a tray so balanced that one of the
smaller coins does not disturb it but that two or more of them or one of the larger
ones disturbs or tilts it so that they slide off and complete the circuit.
Dated this 25th day of March 1890.
ARTHUR R. BROWN.
EDWIN C. J. DEVIS.
COMPLETE SPECIFICATION.
Improvements in Coin-actuated Machines for Providing Amusements
of Chance.
We, ARTHUR RICHARD BROWN, Engineer, of The Park, Harrow, in the County
of Middlesex, and EDWIN CHAMBERS JOHN DEVIS, Engineer, of Laurel
Cottage, School Road, Moseley, near Birmingham, in the County of Warwick,
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:-
Our invention relates to machines actuated, by the agency of electric power, after
the insertion of a predetermined coin or coins, for exhibiting games or amusements
of chance or such as depend in some measure on chance though their operation may
be in a limited degree, controllable by or dependent on the skill or practice of the
operator; and the principal objects of our invention are to produce a simple and
strong machine which cannot easily get out of order and which cannot readily be
operated by anything except the predetermined coin or something very similar
to it.
We provide, one or more electric battery cells and connect them, inside the case
of the machine, to an electric motor, arranged to drive a spindle which is either
directly or indirectly connected with the revolving exhibiting member of the
machine, the electric circuit through the battery and motor being normally broken
at some convenient point or points such that when the coin is inserted the poles are
connected and the circuit thus completed; we will now describe our invention with
reference to the accompanying drawings.
Referring to the accompanying drawings, Figure 1. shews a novel form of electro
motor such as we prefer to use. The lower part of the figure represents the old and
well known mechanism which is ordinarily used for electric bells and which has
hitherto been, or proposed to be used in coin-freed machines for amusement of
chance, the vibratory motion of the armature A having hitherto been proposed to be
converted into the circular motion required for the rotatable member R by means of
a wheel and pawl which however are objectionable, mainly on account of friction
and the severity of the vibration to which they are subjected. According to our
invention we use a novel and much simpler contrivance consisting of a circular brush
consisting of a hub C fixed to the rotatable spindle and having inclined bristles B, and
acted on directly by the hammer head H which is fixed to a prolongation of the
vibrating armature A and is preferably made flat on the striking face. The inclined
bristles B are preferably made of steel or hard brass or bronze and are either made
resilient in themselves or are bedded in a resilient material, such for instance as a
band of india rubber surrounding the centre or hub C, so that the motion of the
hammer head H, though radial or approximately radial to the wheel, is transmitted
by them into a tangential direction and so drives round the circular brush, the
spindle to which it is fixed, and the rotatable member R which is fixed or connected
to the latter. Instead of the bristles B plates of thin metal or other suitable
material may be used, and instead of being fixed to the cylindrical surface of the
wheel the plates or bristles may be fixed to a bevelled edge of the boss as at X, or to
the plane surface or side as at Y, Z, in Figure 1, in which latter case the motion of
the hammer head, instead of being radial to the rotatable spindle, as in the first case,
is parallel to it, that is, if the rotatable spindle is horizontal, the motion of the
hammer head is also horizontal, or japproximately so. In any case the hammer

page_text: head at each return or backward stroke recedes directly from the surface of
the wheel and there is none of the slipping over the periphery of the wheel
which there necessarily is when a slip pawl and a ratchet wheel or their
equivalents are used. In fact it is important to so choose the material of which
the hammer head is made that there shall be no slip between it and the
bristles, and the material which we find most suitable for this is that known as
"vulcanised fibre."
This brush motor is most suitable when the weight to be moved is very small
but when more power is required we sometimes find it advantageous to use a motor
of the ordinary revolving armature type, the general construction of which is well
known. With this type, however, we find that, without some special arrangement
to ensure it, the armatures will not always start revolving automatically when the
circuit is completed, it being impossible, or very difficult, to permanently get rid of
all dead points or positions, that is to say, positions at which the pull of the magnets
on the armatures is either nil or equal in the two opposite directions, and the
practical effect of using multiple magnets and armatures appears to be to reduce
such positions or places in size and increase them in number thus only modifying
the difficulty.
To overcome this difficulty we either use a starting device independent of the
motor or we give the armature of the motor a bias to a certain position or to any
one of two or more predetermined positions round the circle, such positions being
so chosen that the armatures being at rest in them are certain to start revolving
when the electric circuit is completed.
This bias we prefer to give by means of either one or more suitably placed
fixed permanent magnets, or one or more weights attached to the rotatable
armatures. But in such a case, as it is not desired that the rotating indicating
member of the machine shall stop at predetermined positions, instead of fixing
the armatures direct to its spindle, we either provide a clutch or equivalent
contrivance between them, such clutch being automatically put in gear for giving
the indicating or exhibiting member its rotation and then automatically drawn, or
allowed to pass, out of gear so that the indicating member and the armatures
can come to rest independently of each other, or we provide, between the spindle
of the armatures and that of the indicating member, multiplying or reducing
gear of such proportions that for every whole revolution of the one the other
makes a fractional number of revolutions, the fractions being so chosen that it is
difficult to calculate, even approximately, the position at which the exhibiting
member will stop, and even with a knowledge of the proportions of the gear ;
thus, for instance, for every revolution of the armatures the exhibiting member
might be arranged to make 0.61, 161, or 2.61 revolutions, and in some cases we
prefer to make the gear between the two rotatable parts of the frictional type
and so arrange it that there shall or may be slip of indeterminable amount
between them at times.
An example of the biased revolving armature with clutch is shewn in Figure 2,
and one of the biased armature with gearing in Figure 3.
In Figure 2, A is the armature, or revolving electro magnet, of an electro
motor of which E, E, are the fixed electro magnets. The axis of A is continuous
with that of the exhibiting member R but they have separate spindles. The
spindle of R carries small armatures u, u, rotatable in front of the auxiliary
faces h, h, of the magnet A, so that when the current passes, the magnet A
alternately is attracted by the fixed magnets E and attracts the armatures u, u,
causing the latter to revolve with it. The armatures u may be mounted on
light springs so as to be able to approach and recede from A., and A is so
biased by a weight or permanent fixed magnet that it always comes to rest in
a position from which it will start automatically with certainty. We consider it
more satisfactory, though not so simple, to use an independent electro-magnet for
the clutch instead of the armature A, but it may be arranged in the same circuit.
Instead of being magnetic the clutch may consist merely of one or more slip

page_text: pawls carried by arms attached to the motor spindle and gearing with a ratchet
wheel on the other spindle for giving motion to the latter and slipping over the
teeth, out of gear, when the latter continues to revolve after the motor has come
to rest; or the positions of the slip pawl and ratchet wheel may be interchanged.
Or the two spindles may each carry a small wheel permanently out of gear with
each other, and the introduction of the coin into the machine may move a third
wheel into gear with them both; or the wheel on the motor spindle may have a
gap in its driving periphery so situated that when the motor is at rest the gap is
opposite the wheel on the other spindle, so that the latter can go on revolving.
In Figure 3 the spindle of the indicating member is above that of the revolving
magnet and rests on it at one end by means of the friction wheel u on the spindle
of R and the corresponding friction wheel on that of A, the latter being biased,
as before described, and to ensure contact of u and the one end of the spindle of R
is free to move up and down in the slotted hole z. The ratio between u and being
made uneven, as before described, it is evidently impossible to say where R will
stop after a large and unknown number of revolutions; moreover the friction
between u and may be so graduated that when the magnet A begins to revolve
they will slip on each other, the amount of such slip being of course
indeterminable.
The wheels u and may be of the toothed type, if preferred, or they may be
cord or band pulleys, in which case it is convenient to suspend the wheel u by the
cord or band from the wheel h.
Starting devices independent of the motor are shewn in Figures 4 and 5. In
Figure 4, a is a wheel fixed to one of the rotatable spindles and having pockets at
its circumference adapted to carry the predetermined coin; b is a shoot guiding the
coin from the coin orifice on to the wheel a; c is a guard plate to ensure the coin
remaining on the wheel until it reaches the hopper d. The weight of the coin on
the wheel a carries the latter round and so starts the motor, and when the coin
reaches the hopper d it slides off the wheel and passes through the hopper to the
circuit closing device.
In Figure 5, a is a pinion fixed to one of the rotatable spindles, fis a tray and
g a rack the two forming a lever supported at the lower end by a bar e which is
either pressed towards the front of the machine by a spring or weight or is a
spring itself. The coin being pressed through the coin orifice o presses the bar e
backwards till the notched end of the rack y catches over the fixed stop u and
retains it in the position shewn, g being the heavier end of the lever; the coin then
falls down and is guided by the plate c, on to the tray, which it bears down, releasing
the rack from the stop n, and lifting it into gear with the pinion a; the weight or
spring brings the bare and rack g forward again, rotating the pinion a, and when
the rack is clear of the pinion the lever tilts under the weight of the coin and the
latter slips off through the hopper d into the circuit closing device. The rack
and pinion may be of the frictional type. The circuit closing device may, when
desired, be formed on the starting device itself; thus in Figure 5 the tray fmay be
formed in two parts constituting the two terminals to be connected by the coin.
We will now describe some of the devices which we employ for effecting the
closing of the circuit by the introduction of the coin. These we divide into two
classes, those in which the coin itself, after insertion, forms a connecting link
between the terminals, the circuit passing through it; that is, which act by mere
contact of the coin; and those in which the pushing of the coin into the machine
causes either one terminal to come into contact with the other, or a piece of metal
to come into position between the two terminals so as to connect them, that is
which act by the mere rigidity or shape of the coin. Devices of the former class
have been frequently used or proposed for electric coin freed or actuated machines
but have generally been found unsatisfactory on account of the difficulty of
obtaining sufficient pressure between the coin and the terminals to give good
conductivity, the weight of the coin itself not being sufficient and the general
condition of its surface not being favourable; and to overcome this difficulty push

page_text: bars and equivalent contrivances have been used to give the necessary pressure
on the coin. The special object of our invention therefore, as regards this class is
to either ensure sufficient pressure between the coin and the terminals automatically
and independently of the weight of the coin itself, or ensure good electric cont ct
otherwise.
As regards the second class, devices have been used by which the weight or
impact of the coin presses one terminal into contact with the other by means of
balanced mechanism whose balance is disturbed by the weight of the coin, but our
invention is not concerned with such devices and we consider them objectionable on
account of the facility with which other articles than the predetermined coin,
provided they have sufficient weight and can be introduced into the machine, can
be made to actuate the machine.
One object of our invention as regards the circuit closing device is to render as
difficult as possible the actuation of the machine by means of either knife blades,
wires, and other things which can be inserted and withdrawn, or such things as can
be introduced bodily into the machine but which differ essentially in size and
nature from the predetermined coin.
Figures 6 to 14 of the accompanying drawings show devices of the first class,
most of which may however be brought into the second class by slight modification.
In Figure 6, which is a sectional plan, and Figure 7 which is an elevation of the
same device, t 1 t2 are the two terminals, of which t 1, is carried by a lever / centred
on a fulcrum k and kept in position by a stops and t2 is carried by an arm m
preferably fixed to the frame of the motor so as to share its vibration when the
latter is running. The terminal pieces t 1 t2 are preferably insulated from their
supports I m, and do not reach up to the narrowest part p, of the passage between
the latter, so that no ordinary knife blade inserted through the coin orifice can
touch both terminals simultaneously.
The distance p is somewhat less than the diameter of the coin to be used, so that
when the latter is inserted it pushes the terminal t 1 aside, against the weight w
and takes its place between the terminals, intimate contact with which is ensured
by the weight w. The circuit being thus completed, the motor starts running, its
vibration is communicated through the arm m to the terminal t 2 and thence through
the coin and the terminal 1 to the lever and this vibration acting on the coin
through the inclines of t 1 t 2, gradually works the coin along the terminals till it
falls off at their inner ends. Instead of the weight w an equivalent spring may be
used. The angle of divergence of the terminal pieces, other conditions being
unaltered, determines the speed at which the coin passes along them out of contact,
and therefore the time during which the current flows. By putting the coin orifice
over the terminals and setting the latter vertically instead of horizontally as
shewn, the coin will of course travel downwards along the terminals instead of
horizontally, and in this case as the weight of the coin helps to carry it along the
terminals and out of circuit the latter must be set at a smaller angle for the same
duration of current. Such a vertical arrangement is shewn in Figures 28 and 29
and if it is desired that the coin should travel upwards instead of downwards along
the terminals, it is only necessary to set the latter to diverge from each other
upwards at a sufficient angle.
In Figures 8 to 13 are shewn various devices in which one or both terminals are
formed of bristles of metal, wire or plate, the special advantage of which is that on
account of its resilience each wire has its own independent motion, so that it is nearly
certain that at any one instant some one or more wire on each terminal is in contact
with a clean portion of the coin, and we find that such bristles give fairly satisfactory
results without any more pressure on them than the weight of the coin, and we
have successfully used a divided inclined shoot the two parts of which, forming the
two terminals are furnished with beds of fine wires over which the coin slides
under the vibration of the machine assisted by gravity. If the coins are dirty,
however, the wires gradually become dirty and unsatisfactory in their working
unless the pressure on the points of contact is increased.

page_text: Figures 8 and 9 show a horizontal form in which the lower terminal t 2 is formed
of two plates on edge, the upper one t 1, being in effect a brush with inclined metallic
bristles, the action of which on the coin as it vibrates gradually forces the coin
along the terminals; is a bridge fixed over the coin orifice o and of such height and
width that, while the coin can be introduced under it and through the orifice, a
knife blade or similar thing is so deflected by it that it cannot be inserted far enough
to reach the terminals.
Figures 10 and 11 show another form in which both terminals t 1 t2, are formed of
bristles, each terminal clasping a portion of the coin, and Figures 12 and 13 show
a similar form, except that the coin in this case passes edgewise through the bristles,
in both cases the motion of the coin out of the circuit being caused by vibration
derived from the motor assisted from the weight of the coin.
Figure 14 shews another device in which the terminals 1 t2 are formed of rollers
which are preferably milled on the face and between which the coin passes from the
orifice o. The rollers are pressed towards each other by a spring or weight and
one of them carries a pulley g 1 over which passes a cord m which also passes under
another pulley 2 fixed to one of the rotatable spindles of the machine. The
coin being pushed between the rollers completes the circuit and starts the motor, the
pulley 92 rotates and turns the pulley 91 and the roller t2 and slowly draws
the coin between the rollers till it falls free.
When the coin orifice is required to be horizontal the weight of the upper roller
may be utilized to give the necessary pressure on the coin. When it is vertical as
shewn one of the terminals may be non-rotating as the weight of the coin assists its
motion out of the circuit. The rotating terminal instead of being pressed against the
other by a spring or weight may be made with an elastic surface such as wire
bristles. The pulley 9 2 may conveniently be fixed to one end of the spindle of the
exhibiting member R, the cord m supporting the spindle at that end, and the spindle
working in a vertical slotted hole as shewn.
Two contrivances by which the current may be passed through the coin or not,
as may be desired, are shewn in Figures 15, 16, and 17, and Figure 18 respectively.
In Figures 15, 16, & 17 two bell crank levers 11 12 in proximity to the coin
orifice o are carried at the upper ends of two spring arms w 1, w 2, one or both of
which is or are arranged to derive vibration from the motor. The space between
the levers is somewhat less than the diameter of the coin, but the spring in the
arms 12, allows the coin to be forced into place, and when its points of contact
with the levers have passed the fulcra of the latter the levers turn slightly by
torsion of the spring arms and the ends come into contact with the terminals t 1, t2,
as shewn in Figure 16, when the motor is started vibration set up, and the coin
carried forward and out of contact with the levers.
Figure 18 is similar to the last described, the lever 11, 12, and spring arms w 1, w 2,
being replaced by the springs 11, 12. The action is the same.
Figure 19 shews a device in which the coin, on passing through the orifice,
presses apart two levers 11, 12, which are connected to but insulated from the
terminals 1, 2, which are carried by spring arms w 1, w2; a connecting piece v
carried by a light spring, normally rests on the levers 11, 12, but when these are
opened out by the passage of the coin it falls, under the influence of its spring,
between the terminals t1, t2, and completes the circuit, and is worked up into its
normal position again by the vibration of the motor, transmitted through one or both
of the springs w 1, w 2, and the inclined faces of the terminals. Figures 20 and 21
shew a similar contrivance but in which the proper coin as it opens out the terminals
by passing between the insulated arms 11, 12, also presses the connecting piece v
between the terminals where it is caught as the coin falls down. The coin is
deflected into the coin receptacle by the piece attached to the spring v.
v
If desired the piece may be used as the one terminal t 1 or 2 forming the other.
As regards precautions against the machine being actuated by other things than
the predetermined coin, the bridge or guard r has already been described and this
in various forms may be applied to most of the contrivances described.

page_text: Such objectionable actuation is also rendered more or less difficult by the
insulation of the terminals t 1, t2, and the contraction of the coin channel at p in
Figure 6, by the necessity of deflecting both arms 11, 12, simultaneously in
Figure 19, by the same necessity in Figures 15 to 18, together with the fact that
the deflecting force must be confined to a position at some distance from the outside
of the machine, and would therefore have to be applied by a specially shaped
instrument, and in Figures 20 and 21 by the fact that both the arms 11, 12, and
the connecting piece v must be deflected simultaneously in order to obtain actuation,
and when we desire a still further precaution, we make a third or alternative
terminal of the metal surrounding the coin orifice, as shewn diagrammatically in
Figure 22 by connecting it by a wire to the wire leading from the battery to the
motor, so that when a conductor is brought into contact with the normal terminals,
but not being passed bodily into the machine, remains in contact with the edge of
the coin orifice it short circuits the battery and therefore does not actuate the
motor. To avoid danger in such a case, of the predetermined coin remaining in
the short circuit, we may construct the coin orifice as shewn in Figure 23, where the
concavity of the upper lip allows of the coin being pushed in till its outer edge
passes beyond the edge of the lower lip, while the undercutting of the latter
ensures that when the coin has fallen into the position shewn it is out of contact.
When the coin entry is vertical we may employ a similar construction of the lips
of the orifice and use a spring or weighted lever, instead of gravity to press the
coin out of contact.
We may also employ suitable springs or weights to so close or contract the coin
orifice as to ensure that any conductor projecting or passing through it is in electric
contact with the alternative terminal so formed.
Figures 24, 25, and 26 shew an arrangement in which we employ a modification
of this short circuiting for preventing the machine being actuated either by con-
ductors which are not introduced bodily into the machine, or by non-conductors
whether so introduced or not; is a lever centred at its upper end just over the
coin orifice, and kept in the position shewn by a weight or spring y; its lower end
forms one of the terminals 1, and the other t 2 is so placed as normally to block the
motion of t 1, but it can be drawn to one side by an electro magnet E, the coils of
which together with the lever and the metal round the coin orifice are comprised
in the short or modified circuit with the battery, so that when a conductor is
inserted the terminal t 2 is drawn aside and the terminal 1 passes alongside of it
into the position shewn in Figure 25 without touching it; if the conductor be then
withdrawn, contact being maintained at the orifice, the terminal t 1 resumes its
position without being touched by t 2 and therefore without actuating the machine ;
if it be a coin of the proper size however, and be pushed completely in, the lower
end of the spring y pushes the inner end of the coin off the lever and the coin, being
then unsupported, falls down out of contact with the metal at the orifice; the modified
circuit being thus broken the terminal t 2 springs back on to t 1 and completes the
motor circuit, and actuates the machine; if a nonconductor be introduced no
circuit is completed and the terminal t2 remains blocking t 1, and their contact in
this position is rendered ineffective by insulating the end of t2; t2 is so mounted
as to be subject to vibration when the motor is running so that after introduction of
the coin, t gradually works along t2 back into its normal position. In the
figure the terminal t2 is shewn as the backward prolongation of the vibrating
armature A of the electro motor which drives the exhibiting member R, and the
only difference in this case between the short or modified circuit, and the motor
circuit is that the former excludes the set screw, which is the essential feature of
the automatic contact making and breaking device, which causes the continued
vibration of the armature, but in some cases it is preferable to use an independent
coil and magnet for actuating the blocking piece. Instead of the lever / forming
one of the terminals, it may be arranged to carry a connecting piece into contact
with the two terminals and instead of the electro magnet moving one of the

page_text: terminals 2, it may move a separate piece from between the two terminals or
from between the connecting piece and the two terminals and instead of the lever
& the metal round the coin orifice forming the two terminals of the modified
circuit, these may both be formed for further safety on the lever l, in position
where the coin on introduction will connect them.
Figures 27, 28 and 29 shew a complete machine in which T is an outer case on
the front of which is represented a head (which may be designed to constitute an
advertisement) having an open mouth Q consisting of an actual opening in the front
of the case, through which is seen a portion of the rotatable exhibiting member R,
which is mounted in bearings G carried from the base plate N which is fixed to
the front of the machine and has an opening through it corresponding to the
opening Q.
From the same base plate N springs a standard S to which is fixed the electro
motor E carrying the vibrating armature A to which is fixed the hammer head H,
which acts on the brush B fixed to the spindle of R as described with reference to
Figure 1. The circuit closing device here shewn is a vertical arrangement of that
described with reference to Figure 6, the two terminals forming a vertical coin
channel, the one t2 being fixed by the arm m to an upward prolongation of the
standard S, so as to derive vibration from the motor, and the other t 1 being carried
by a heavy suspended lever / whose normal position can be regulated by a stop s
adjustable from the outside of the machine. The battery cells F, F, are connected
to the motor E exactly as in the case of an electric bell except that the terminal
pieces t1, t2, are brought into the circuit; indicates the short circuiting safe
guard connection between the metal round the coin orifice, and the wire leading
direct from the battery to the motor as described with reference to Figure 22;
P, P, is a partition across the case of the machine forming a money box M. and
into which the coins fall as they leave the terminals t1, t2; D is a sliding door on
the bottom of the case T giving access to the money box M and secured by the
lock L.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. In machines for automatically providing amusements of chance or the like in
exchange for predetermined coins, a brush having inclined plates or bristles for
converting into circular motion the reciprocatory or vibratory motion of a piece
actuated by electric power.
2. In such machines the combination of an automatically actuated clutch, or
equivalent contrivance, with an electro motor having a revolving armature so
biased as to always come to rest in a position from which it can be automatically
started with certainty for the purpose hereinbefore described.
3. In such machines the combination of an electro motor having a revolving
armature biased as referred to in the last preceding claiming clause, with gearing
by which it imparts rotary motion to the exhibiting member for the purpose
hereinbefore described.
4. In such machines the combination of an electro motor and a circuit closing
device with a device by which a small amount of rotation is, on the introduction of
the coin into the machine, independently imparted to one or more of the rotatable
parts, either before or at the same time that the electric circuit through the motor
is closed for the purpose herein before described.
5. In such machines completing an electric circuit through a motor by causing
the coin to be grasped between two terminal pieces one or both of which derives or
derive vibration from the motor, such vibration combined with the angulation of
the terminal pieces with each other, and assisted or not by the weight of the
coin, causing the coin to travel along the terminals and pass out of circuit.
6. In such machines, for completing an electric circuit through a motor, a

page_text: metallic brush or metallic brushes having resilient bristles of wire or plate and
forming one or both terminals in contact with which the coin is caused to pass
substantially as hereinbefore described.
7. In such machines, for completing an electric circuit through a motor, two
moveable pieces which are forced into contact with the two terminals when the
coin is pressed between them substantially as herein before described.
8. In such machines, for completing an electric circuit through a motor, a
terminal in combination with a roller forming the other terminal between which
terminals the coin passes such roller deriving rotation from the motor and thus
passing the coin out of contact substantially as hereinbefore described.
9. In such machines, for completing an electric circuit through a motor, two
moveable pieces connected to the terminals between which moveable pieces the
coin is pressed so as to separate said terminals and allow an electric conductor to
pass by the action of gravity or a spring into a position to complete the circuit
between them substantially as hereinbefore described.
10. In such machines, for completing an electric circuit through a motor, the
arrangement substantially as hereinbefore described whereby by pushing the coin
between two pieces and against a third piece the two former are separated and
the latter piece passes between and into contact with them, two of the three pieces
forming the terminals or carrying them at their points of contact with each other.
11. In such machines, for completing an electric circuit through a motor, a piece
which can be moved by pressing in the coin, so as to connect the terminals, but
whose path is normally blocked by another piece which on inserting the coin is
removed by an electro magnet the circuit through whose coils is completed by the
coin.
12. In such machines the safeguard against undesired actuation consisting in
making an alternative terminal for a short circuit at the coin orifice substantially
as described.
13. The arrangement and combination of parts constituting the machine
described with reference to Figures 27, 28, and 29 of the accompanying drawings
or having one or more of its parts replaced by suitable corresponding parts
substantially as hereinbefore described.
14. The several parts of and combinations for such a machine substantially as
herein before described with reference to the several figures of the accompanying
drawings.
Dated this 27th day of December 1890.
ARTHUR R. BROWN.
EDWIN C. J. DEVIS.