Improvements in Automatic Coinfreed Weighing Machines.
Year: 1896

page_text: This Print is in accordance with the Original Specification as it stands after
Amendment (under Section 11 of the Patents, &c., Act, 1883), as required by
the decision of the Comptroller General of the 9th day of March 1897.
Date of Application, 3rd June, 1896
Communita Îngrification
Lost
4000
101L
1000
PROVISIONAL SPECIFICATION.
Improvements in Automatic Coinfreed Weighing Machines.
I SAMUEL DAVEY of 29 Grangepark Road, Leyton, Essex, Pattern Maker.
do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in the construction of weighing machines
which are operated by means of a coin which automatically releases the mechanism
connected with the indicating apparatus.
In carrying out my invention I propose to operate the spindle carrying the
indicating hand by means of a rack which gears with a small toothed wheel on the
spindle. The weighing platform is connected to the frame having one or more
strong spiral springs from which it is suspended from the upper portion of the case.
The platform and frame when released descend-a distance corresponding with the
weight placed upon the platform extending the springs accordingly. To the upper
part of this frame a bar is pivoted at the centre, to one end of which is connected
a rod carrying a receptacle into which the coin descends on insertion through the
slot. On the other side of the centre a small adjustable block is secured, to which
the lower end of the rack is connected, the bar being free to turn round the centre,
and to move the rack up or down. The arrangement is such that on passing a
coin into the receptacle prepared for it the bar will be caused to dip at one end
and to raise the rack turning the indicating hand. A handle is provided which
engages with an extension on the frame and prevents the frame and platform
descending until it is withdrawn.
The mechanism is arranged so that on the penny descending through the slot into
the carrier the lever or bar which is properly balanced is caused to raise the rack,
which turns the pointer or hand from the zero mark through the whole or a portion
of a circle to the highest mark on the dial. On withdrawing the handle the frame
and connected mechanism descend a distance proportionate to the weight, drawing
the rack down a corresponding distance, and causing the pointer to move back to
the mark which indicates the weight. A stop is preferably provided which
prevents the end of the balance arm carrying the rack from dropping beyond its
proper position. To prevent the mechanism dropping too suddenly on withdrawing
the handle, a liquid brake is employed consisting of a cylinder containing a loosely
fitting piston, the piston rod being fitted to the frame. On the weight being
applied the liquid is allowed to escape slowly around the edge of the piston into
the upper part of the cylinder, causing the frame to descend gently.

page_text: Instead of springs being employed for suspending the frame, counterweights
may be used, which will allow the frame to descend a distance proportionate to
the weight on the platform.
Dated this 3rd day of June 1896
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.
Improvements in Automatic Coinfreed Weighing Machines.
I SAMUEL DAVEY of 29, Grange Park Road, Leyton, Essex, Pattern Maker,
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 :-
This invention relates to improvements in the construction of weighing machines,
operated by means of a coin which automatically releases the mechanism connected
with the indicating apparatus.
The
In carrying out my invention I operate the spindle carrying the indicating hand
by means of a rack which gears into a small toothed wheel on the spindle.
weighing platform is connected by levers in the ordinary manner to a frame having
one or more strong spiral springs by which it is suspended from the upper portion
of the case. The platform and frame, when released, descend a distance corre-
sponding with the weight placed upon the platform, the springs being extended
accordingly. To the upper part of the frame is pivoted a bar or lever of the first
order, one end of which is connected to a rod carrying a receptacle into which the
coin descends on insertion through the slot.
On the other end of the lever is secured an adjustable block connected by a rod
and pivoted arm to the lower end of the rack operating the indicator. The
arrangement is such that on dropping a coin into the receptacle its weight will
force down one end of the said lever thus raising the other end and consequently
the rack turning the indicating hand. A handle, connected by a cord with a
pivoted lever or catch, is provided which acts on the said catch to allow the
frame and platform to descend after the coin has been deposited in the slot.
The rack as it is raised by the weight of the coin as aforesaid turns the pointer
or hand a complete revolution until it rests at the zero point of the indicating dial.
On pulling out the handle the pivoted lever or catch is drawn out of connection
with two pins fixed to the frame thus permitting the latter to descend by reason of
the weight on the platform and so drawing down the rack and causing the pointer
to travel back round the dial to the mark indicating the correct weight.
A stop
is provided which prevents the lever operating the rack from descending beyond a
certain distance. A dash-pot is provided in connection with the frame for
preventing the latter descending or ascending too suddenly. And in order to
clearly illustrate my invention I will describe the same with reference to the
accompanying sheet of drawings in which similar letters of reference indicate
corresponding parts in each of the views.
Fig. 1 is a rear or back elevation of my improved machine,
Fig. 2 is a side elevation with the case in section, and
Fig. 3 a front elevation of the case and dial.
In these figures a represents the case or frame holding the mechanism, bis
the indicating dial and the hand or pointer. a is the slot in which the coin is
deposited. c is the receptacle or bucket for receiving the coin which passes from
the slot down the shoot a², and e' is the rod connected to the said bucket. d is the

page_text: frame connected to the platform e by levers in the ordinary manner, and provided
with a rod d working in a dash-pot d to prevent the too sudden movement of the
said frame. is the lever operating the rack 9 and pivoted at to the frame d.
One end of this lever is connected to the rod c¹ and the other end has secured to it
a block adjustable thereon by means of a slot formed in the same and provided
also with a counterweight for balancing the lever.
The block has connected to it a rod g pivoted at its other end to an arm g
centred at g to the case a. The lower end of the rack g is pivoted to the said arm
as shown in Fig. 1.
The upper end of the frame d is suspended to the fixed bracket A by means of
the coiled springs h'.
The frame d is provided with two pins ii which bear upon the top of the forked
end of the pivoted lever or catch whereby the said frame is supported in its
upward position. The catch is kept in its normal or supporting position by
spring its upper end bearing against a stop . To the lower arm of
the catch is connected a cord I passing around a guide pulley and connected at
its upper end to a knob or handle 2 provided in the front of the case. Another
lever in is pivoted to the case at m² and connected at one end by a rod n with the
ordinary ladder device o for freeing the coin from the bucket c, the other end of
the lever being connected to the frame d by means of a roller working in a
slot m
The operation of the machine is as follows:-
A coin, such as a penny, is placed in the slot a' and falls into the bucket c, the
weight thereof causing the long arm of the lever to descend and raising the short
arm and consequently the rack g by means of the rod g' and pivoted arm g². The
upward movement of the rack a causes the pointer to make a complete
revolution from the point marked 20 to the zero point. The person on the
platform then pulls out the handle which draws up the cord / thus disengaging
the forked end of the catch k from the pins i when the frame d and platforme are
free to descend by reason of the weight of the person on the latter, the action of
the dash-pot d causing a gradual and gentle descent.
The descent of the frame d causes also the short arm of the lever to descend
and with it the rack g a distance proportionate to the weight, thus causing the
pointer to move back to the mark indicating such weight. The descent of the
frame d also lowers the short arm of the lever m thus raising the rod n and ladder
device o so as on the descent of the latter to free the penny from the bucket c. As
the platforme is relieved of the weight thereon, it, and the frame d are raised to
their normal position by means of the springs ' the pins i escaping past the forked
end of the catch k until they rest upon and are supported by the same. This action
also raises the rack g and sends the pointer back to its normal or starting position.
p is a stop on the frame d which, as the latter ascends beurs against the lower end
of the rod c' so as to give an extra shake to the bucket e should the coin be not
previously ejected from the same by the device o.
The distance the rod e and bucket e descend is regulated by the adjustable stop e.
Instead of the springs Acounterweights suspended from cords or chains may be
used for regulating the descent and ascent of the frame d and platform. A spring
in connection with the handle 12 returns the latter to its normal position. The
tension of the springs may be adjusted by means of the set screws ³.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I wish it to be understood
that I am aware of Everitt's Specification No. 16433 of 1884 and I lay no claim
to anything therein described and claimed but I declare that what I claim is :-
(1.) In automatic weighing machines the combination with the weighing
platform e coin bucket c and rod e' of a frame d suspended by spiral springs A and
a pivoted lever f for operating the råck g turning the indicating pointer bl
substantially as described and for the purposes specified.

page_text: (2.) In automatic weighing machines the combination with the frame d of the
pins pivoted catch k cord 1, pulley and handle substantially as described and
for the purposes specified.
(3.) In automatic weighing machines the combination with the frame d of the
pivoted lever m rod n and coin freeing device o substantially as described and for
the purposes specified.
(4.) The improved automatic weighing machine with the various parts of the
mechanism in connection with one another, substantially as described and shewn in
the accompanying sheet of drawings.
Dated this 1st day
от
UUA ןועןןןןת
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.