AN AUTOMATIC SPURIOUS OR LIGHT GOLD COIN DETECTOR AND CHANGE GIVING APPA- RATUS
Year: 1878

page_text: LETTERS PATENT to Henry Edwin Sambrook, of the Bricklayers Arms, Old
Kent Road, in the County of Surrey, for the Invention of "AN AUTOMATIC
SPURIOUS OR LIGHT GOLD COIN DETECTOR AND CHANGE GIVING APPA-
RATUS."
Sealed the 27th May 1879, and dated the 5th December 1878.
PROVISIONAL SPECIFICATION left by the said Henry Edwin Sambrook at
the Office of the Commissioners of Patents on the 5th December 1878.
HENRY EDWIN SAMBROOK, of the Bricklayers Arms, Old Kent Road, in the
County of Surrey. "AN AUTOMATIC SPURIOUS OR LIGHT GOLD COIN DETECTOR
AND CHANGE-GIVING APPARATUS."
This Invention of an automatic spurious gold coin detector and change giving
apparatus consists in applying the principle that the size and weight for gold coin
shall be the means for unlocking apparatus, which will then enable the operator
to take the equivalent of the coin in change of the value of the coin, but if the coin
should be too large it will not enter the apparatus, and if it should be small enough
to enter the apparatus, and yet too light, either from wear or from being made of
spurious metal, the locking apparatus will not be affected, and the change will still
be beyond the control of the operator.
I carry out this principle by making the aperture for the gold coin the exact size
of the gold coin for which the apparatus is intended. The operator taking a coin to
place in the apparatus, it will either be rejected from being too large, or it will be
received by the aperture into the body of the apparatus; the coin then slides down
an inclined plane fitted as a lever or balance. If of correct weight the coin falls on
to another lever, thence into a good coin drawer, and its weight having previously
released a detent, and the change giving apparatus is for one stroke at the control
of the operator. Should the coin be too light it does not actuate the first lever, but
the coin passes over it into a light drawer or returns to the operator, and the change
giving apparatus remains locked.

page_text: The receptacle for the change consists of a series of buckets, each provided
with the change for the gold coin mouth upwards, capable of being tilted forward
upon trunnions at the base, and arranged round a central axis upon a circular plat-
form; a lever and two ratchets allow the operator by a reciprocating motion given
to the lever to rotate, the platform holding the buckets. The coin detent is a
vertical lever or pin fitting into holes arranged round the central axis, and when the
coin has lifted the detent the operator can move the platform one division, that is,
the space of one bucket; the detent then falls, and the apparatus is locked till
another proper coin enables the operator to rotate the apparatus another division.
The whole apparatus is covered over with a suitable case, an aperture being provided
opposite the resting place of the bucket holding the change to be taken; the operator
then tips the bucket forward, and the change falls out into the hand of the operator
or on to the table; the empty bucket is then tipped back, and the apparatus is
ready to receive another cold coin.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Henry Edwin Sambrook in the Great Seal Patent Office on the 5th
June 1879.
HENRY EDWIN SAMBROOK, of the Bricklayers Arms, Old Kent Road, in the
County of Surrey. "AN AUTOMATIC SPURIOUS OR LIGHT GOLD COIN DETECTOR
AND CHANGE-GIVING APPARATUS."
This Invention of an automatic spurious gold coin detector and change giving
apparatus consists in applying the principle that the size and weight of a gold coin
shall be the means for unlocking apparatus, which will then enable the operator to
take the equivalent of the coin in change of the value of the coin, but if the coin
should be too large it will not enter the apparatus, and if it should be small enough
to enter the apparatus, and yet too light, either from wear or from being made of
spurious metal, the locking apparatus will not be effected, and the change will still
be beyond the control of the operator, the change being contained in separate
receptacles of the respective value of the coin to be changed.
I carry out this principle by making the aperture for the coin the exact size of
the gold coin for which the apparatus is intended. The operator taking a coin to
place in the apparatus, it will either be rejected from being too large, or it will be
received by the aperture into the body of the apparatus; the coin then slides or
rolls down an inclined plane fitted as a lever or balance. If of correct weight the
coin falls on to another lever, thence into a good coin drawer, and its weight having
previously released a detent, the change giving apparatus is for one stroke or for
one cup full of change at the control of the operator, or the change is automatically
thrown out of the machine.. Should the coin be too light, it does not actuate the
first lever, but the coin passes over it into a light, drawer or down an incline, by
which it is rejected and thrown out of the apparatus, and the change giving appa-
ratus remains locked.
The receptacle for the change consists of a series of buckets, each provided with
the change for the gold coin, mouth upwards, capable of being tilted forward upon
trunnions at the base, and arranged round a central axis upon a circular platform;
a lever and two ratchets allow the operator by a reciprocating motion given to the
lever to rotate the platform holding the buckets, or the apparatus by a spring may
be made automatic. The coin detent is a vertical lever or pin fitting into holes
arranged round the central axis, and when the coin has lifted the detent the operator
can move the platform one division, that is, the space of one bucket. The detent
then falls, and the apparatus is locked till another proper coin enables the operator
to rotate the apparatus another division, or in the more perfect form of the appa-
ratus, to be particularly described hereafter. A spring is attached to the apparatus,
and one division of the change cups is brought to an aperture in the machine, and
the change tilted out, a fly or other means in connection with the detent worked by
the good coin releasing and arresting the movement of the spring. The whole
apparatus is covered over with a suitable case, an aperture being provided opposite
the resting place of the bucket holding the change to be taken; the operator then
tips the bucket forward, and the change falls out into the hand of the operator, or
on to the table. The empty bucket is then tipped back, and the apparatus is ready
to receive another gold coin; or by arranging the cups with an inclined bottom they
are made to tip forward, and to right themselves at the desired point.
In the Drawings accompanying and forming part of this Specification, the like
letters indicating the like parts, I have set forth the best means I am acquainted
with of carrying the Invention into practice, though many similar equivalent
devices may be employed without departing from the spirit of my Invention.
Figure 1 is a plan of lower portion of the apparatus, shewing balance inclines
and detent lever and fly.
· Figure 2, elevation of apparatus partly in section,
'

page_text: Figures 4, 5, 6, details of coin mouth.
In the Figures,-
a is the coin aperture.
a', handle to open the aperture for the coin. .
a², the rotating mouth piece.
a³, the spring actuating same.
a, a, stops arrested by the fixed stop a³.
b, fixed incline.
c, incline of scale.
c¹, connecting bar of scale incline and beam c², suspended on points c³, c³, sup-
ported on the standards c¹, c¹.
c is the adjusting weight of the balance, with set screw c; at c7 is the open part
of the scale incline; immediately below this is the coin receiver d; opposite the
scale incline is the small fixed incline e, and below it the stop e¹, and the return
incline, the lower end of which terminates in the opening f' through the external
case.
The coin receiver d forms part of the balance d¹, fulcrumed at d²; d³ is the
adjusting balance weight and set screw d'; the detent of this balance is shewn
at d; g is the fly which is shewn in Figure 1, just ready to be arrested by the
detent d³.
Above these several parts, supported by the columns h, is the lower plate i, on
which runs the wheel j' of the change cups j; parallel and above the plate i is the
turntable plate k, mounted and connected by a spring with an axis k¹, supported
and fixed to the plate i at the boss i²; k² is the box carrying a spring actuating
the turntable; a wheel drives the pinion g' of the fly 9, g' being supported by
the framing g³.
The cups jare supported on the turntable by the standards 12, small trunnions ³
allowing the cup to tilt forward, the incline in the bottom of the cup j' throwing
the load beyond the centre of gravity, the cups, when empty, righting themselves
as shewn in Figure 2; the load of the cup when charged with coin is borne by the
rollers j', supported by the plate i; one portion of this plate shewn at ¹ is cut
away, so that a loaded cup arriving at this place is instantly discharged of its load
of change, and the cup rights itself immediately.
The action of the machine is as follows:-The operator turning the handle a¹
opens the receiver for the coin; if not too large it is received into the rotating*
mouth piece a², and the operator allows the rotating mouth piece to take its normal
position, due to the force of the spring a³; the coin then rolls edge on along the
fixed incline b, where, having acquired a steady motion, it enters into the incline c.
Here it is weighted upon the balance c², the incline c being as it were the pan of
the balance. Should the coin be light, the incline c maintains its normal position,
and the coin rolls along the incline c and enters the fixed incline e; from thence it
falls and rolls along the return incline f, and by the opening f¹ finally rolls out of
the apparatus.
If the coin is of good weight the scale incline c falls with the weight of the coin
below the opening of the fixed incline e, and abutting against a stop e' it falls into
the coin receiver d; the weight of the coin acting on the balanced pulls down the
detent do, the coin falling into the drawer or coin holder do, and the balance d¹
rights itself. The detent in falling has however released the fly g, one arm of which
was held by the detent, and the spring enclosed in the box k² puts the turntable in
motion. The wheel k³, the pinion g¹, and the fly are geared to allow the turntable
at each release of the detent to progress one division of the turntable, that is, to
bring one change cup j over the opening in the lower plate i at the part shewn i';
the cup here being no longer supported on the plate i by the small roller j', tips the
change forward out through the casing of the machine down a shoot not shown in
the Drawing, and instantly rights itself. The fly then having made one revolution

page_text: is again arrested by the detent, and the remainder of the cups charged with change
remain in security till another gold coin puts the apparatus in motion; the fly and
detent shewn answer perfectly, but an arrangement similar to the striking mechanism
of a French clock might also be employed.
The form of the apparatus and the details of opening and locking for charging
with coin, the number of cups of change, and their denomination must be guided
by the requirements of the particular business where the apparatus is to be used;
about 10 or 12 cups will be found perhaps the most useful, though very many more
may be employed if required. It is best also if 10, for instance, are required to
make 11 divisions, one, the first of the series, being a dummy, as one cup will always
be opposite the aperture by which the change is discharged. In the working of the
apparatus the empty cup last discharged is opposite the aperture. The case of the
apparatus may have glass plates opposite the cups, and the cups may be numbered,
so that the amount of change still remaining may be verified. Although I have
shewn the balance as an incline, it niglit be made with a pan in the usual way, the
heavy coin tipping out of it, the light one being rejected, and taken or thrown out
by a fork attached to the revolving mouthpiece, on its return stroke the scale pan
not having been taken out of reach of the fork, as it would be if the coin were
sufficiently heavy to carry down the scale pan. An alarum may be fitted to shew
each time that change has been given or the machine used, and by electrical means
it may be given either in the apparatus or in any distant apartment, but I do not
claim this part of the Invention.
Having now described my Invention, and particularly set forth the means of
carrying it into practice, I would have it understood that what I claim and desire
to secure in the herein in part recited Letters Patent is,―
Firstly. The combination of a sizing mouthpiece, a balance, and a detent, con-
trolling the possible movement and receiving of the equivalent change of any
required good gold coin, substantially as described.
Secondly. The automatic action of the turntable holding the cups of change, their
movement and discharge controlled and operated by a gold coin of any desired
weight through the several mechanical expedients, substantially as described.
In witness whereof, I, the said Henry Edwin Sambrook, have hereunto set
my hand and seal, this Third day of June, in the year of our Lord One
thousand eight hundred and seventy nine.
HENRY EDWIN SAMBROOK. (L.S.)