Improvements in Apparatus for Changing Gold Coins for Silver, Checks, or the like.
Year: 1889

page_text: Date of Application, 27th Mar., 1889
Complete Specification Left, 27th Dec., 1889-Accepted, 1st Feb., 1890
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Changing Gold Coins for Silver,
Checks, or the like.
I, THOMAS LAMBERT of 4 Baron Street, Clerkenwell, London, Electrical Engineer,
do hereby declare the nature of this invention to be as follows:-
The present invention relates to improvements in apparatus for changing gold coins
for silver, checks or the like and its object is to design an apparatus by the means
of which contrary to similar apparatus employed for the purpose up to the present
time a comparatively great number of sovereigns and half sovereigns can be changed.
The apparatus forming the subject of the present application has the further
advantage that the mechanism is very simple and not liable to get out of order,
that it is comparatively cheap, takes up comparatively little room and that the
attendant cannot obtain the silver or checks without first introducing the gold coin
which cannot afterwards be withdrawn from the apparatus unless it be unlocked.
The apparatus consists essentially of a preferably circular outer casing formed with an
inclined shoot in its bed plate which opens in front of the case and extends under two
or more concentric central frames arranged inside the outer casing and provided
with a series of preferably circular chambers which are open at the bottom and which
frames slide on an intermediate plate of the apparatus. These chambers are for the
reception of the silver or checks which the apparatus is intended to give in exchange
for the gold coin introduced. The whole is covered with a top plate which is locked
after the chambers have been charged with the silver or checks.
In this top plate are two slots respectively of the exact size of the diameter and
width of a sovereign and half a sovereign. When the gold coin is introduced it falls
onto a finely balanced pivotted lever on which is formed a gutter. The coin which
must be of the exact weight of a sovereign or half sovereign depresses that lever
and runs down the gutter until it is stopped by a downwardly projecting piece of
metal fastened to the underside of the top plate and is thus prevented from running.
off the gutter altogether, the lever meanwhile resting on a slight spring which
prevents it from being depressed further by the weight of the gold. On the free end of
this lever is fastened an upwardly projecting steel pin which reaches through an opening
formed in the intermediate plate between the above named chambers thus locking the
frames with the chambers. When the coin is introduced and the above named
pivotted lever depressed this steel pin will be moved downwards with it until it only
projects with its bevelled upper end between the chambers. The frame can now be
moved forward for the space of one chamber when the steel pin will be entirely
depressed by the chamber passing over its bevelled upper end and the pivotted lever
is thus also further depressed and permits the gold coin to roll off into a suitable
receptacle placed underneath.
The frame is moved forward by means of a pawl pivotted to a stud working in a
suitable slot of the top plate, extending through this latter and provided with a knob
or button. This pawl, when the knob is being drawn forward, engages with one
side of one of the chambers and thus draws the whole frame with the chambers
forward so that the contents of one of the latter falls through the shoot in front of
the case.
The stud with the knob may be provided with a suitable spring which
would return it into its normal position as soon as it is liberated. To prevent the
frame from being moved for more than the space of one chamber an inclined detent
lever is pivotted on the under side of the top plate on the lower edge of which detent
slides a lateral steel pin fixed to the sliding stud in such a manner that the end of the
lever falls by its own weight when the stud is drawn forward and engages with the
end of one of the chambers thus preventing the frame from being moved forward too

page_text: far. When the stud is moved back this lever is lifted again by the pin sliding along
its lower edge.
The apparatus is further preferably provided with a bell striking mechanism and
suitable openings through which numbers corresponding with the different chambers
can be seen.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Changing Gold Coins for Silver,
Checks, or the like.
⚫I THOMAS LAMBERT of 4 Baron Street, Clerkenwell, London, 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:-
The present invention relates to improvements in apparatus for changing gold
coins for silver, checks or the like and its object is to design an apparatus by the
means of which contrary to similar apparatus employed for the purpose up to the
present time a comparatively great number of sovereigns and half sovereigns can be
changed. The apparatus forming the subject of the present application has the.
further advantage that the mechanism is very simple and not liable to get out of
order, that it is comparatively cheap, takes up comparatively little room and that the
attendant cannot obtain the silver or checks without first introducing the gold coin
which cannot afterwards be withdrawn from the apparatus unless the latter be
unlocked.
In the accompanying drawings: Fig. 1 represents a plan of the apparatus, Fig. 2
the same with the top plate removed, Fig. 3 a front elevation of the same and Fig. 4
is a vertical section of Fig. 3.
The apparatus consists essentially of a preferably circular outer metal casing a
fixed suitably to a preferably square wooden stand b. The bed or bottom plate of
the said outer casing a is formed with an opening in front of the case which opening
extends under two or more concentric frames e arranged inside the outer casing a
and provided with a series of cups or chambers d which are open at the bottom.
These frames c slide on the botton plate of the outer casing a and the chambers or
cups are for the reception of the silver or checks. The whole is covered with a
top plate e which can be fastened after the chambers are charged with the silver or
checks.
In the top plate e are formed two slots f of the size of the diameter and thickness
of a sovereign and a half sovereign respectively. When the gold is introduced it runs
down a shoot g arranged under the slot in the top plate, onto a finely balanced
pivotted lever provided with a gutter. The lever is balanced by means of a
weight in such a manner that only a coin of the exact weight of a sovereign or
half a sovereign respectively will tilt it and the coin will now run down the gutter
until it is stopped from falling off by a downwards projecting piece of metal k fixed
to the bottom plate of the outer casing. The lever h rests meanwhile on a slight
spring to prevent it from being depressed further by the weight of the gold. On a
lateral projection m of the lever is fixed or rests a vertical steel pin n which projects
through a vertical hollow standard or guide o fixed to or part of the bottom plate of
the outer casing, into a hole formed in a lateral projection p of the lever q thus
locking the latter. This lever q is pivotted on a central pin and provided with a
coiled spring which tends to hold the said lever in its normal locked position. The
lever q extends through a slot s formed in the outer casing a, and is here provided
with a button t on which is marked the value of the gold coin intended to unlock the
lever. The free end of the projection p of the lever q is slightly bent downwards for
the purpose hereafter described.

page_text: The operation of the apparatus is as follows:
When the gold coin introduced through the slot fit will run down the gutter
of the lever hand depress this lever, the coin being prevented from rolling off by the
metal piece and the lever resting on the spring 1. The pin n resting on the
projection m of the lever h will move down with this lever and its upper end will pass
out of the hole in the projection p of the lever q thus unlocking the latter which is
now free to be moved by the operator towards the center of the apparatus to the
extent of the slots. During this movement of the lever q the downwards bent end of
the arm
will further depress the pin n and with it the lever so that the gold coin
now freed from the metal piece & can now roll off the gutter of the lever into a
drawer arranged underneath in the stand b. During the movement of the lever g
this latter will by means of a pawl pivotted to it and engaging with one of the
chambers d of its respective circular frame c move the latter for the space of one of
the chambers d when the silver or checks contained in the chamber previously next
to the opening in the front of the bottom plate will fall through this latter onto an
inclined shoot or preferably into a little drawer w arranged in the stand b.
as the operator releases the lever q it will be returned into its normal position
by means of the abovementioned coiled spring and the steel pin n will be lifted
again into the hole of the arm p of the lever q by the lever returned upwards
under the influence of the spring and the weight i. The lever q is now locked
again by the pin n and the apparatus is ready for the next operation.
As soon
To prevent the circular frames c c from moving more than for the space of one of
the chambers d, bearing springs of suitable strength fixed to standards projecting
upwards from the bed plate are provided for the inner circular frame, while a pivotted
lever y released by an arm z of one of the levers q falls and engages with one of
the chambers of the outer frame when the said lever gq is moved.
The apparatus is further provided with openings, one in front of the outer
casing a and one in the top plate e through which numbers corresponding with the
different chambers can be seen. These openings are preferably covered with glass.
The numbers of the outer ring of chambers are marked on the outer wall of the
outer frame and seen through the opening in front of the outer casing a, and
the numbers of the inner frame c are marked on a suitably fixed disc with ratched
teeth actuated by a spring pawl on the respective lever g and are seen through the
opening in the top plate e of the apparatus.
The top plate e which is removable for the purpose of charging the chambers is
locked and unlocked in any suitable or desirable manner.
The apparatus is moreover preferably provided with a suitable bell striking
mechanism actuated in any suitable manner by the removal of the drawer w.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare what [
claim is:
1. In an apparatus such as described the combination of concentric frames such
as cc, levers such as q, vertical pins such as n and balanced levers such as h sub-
stantially as and for the purpose described and illustrated in the accompanying
drawings.
2. The whole apparatus substantially as described in the foregoing specification and
illustrated in the accompanying drawings.