IMPROVEMENTS IN WEIGHING MACHINES
Year: 1886

page_text: of
:-
of 32 Schmidt
I GEORGE REIMANN, trading under the name of "L. Reitmann
Strasse in the City of Berlin, Germany, Manufacturer, do hereby declare the nature
my Invention for "IMPROVEMENTS IN WEIGHING MACHINES" to be as follows:-
My invention relates to improvements in weighing machines in which the pointer or
indicator remains stationary whilst the dial with the weight graduations rotates behind
the casing and is only visible when a suitable slide or flap or slides or flaps is or are
caused to open and disclose the figures representing the weight of the person or
object on the platform of the machine.
This arrangement allows the weight to be read more easily than in weighing
machines with moveable pointer or indicator and the entire parts of the machine are
so protected that the same cannot readily be damaged. The rotary graduated dial is
only visible through an opening of the casing which said opening is covered by a
suitable flap or slide mechanism which is only caused to open and display a part of
the dial when a coin of suitable weight introduced through an opening in the casing
sets the said slide mechanism in operation.
The platform of my improved weighing machine is of ordinary construction and
the lever mechanism of the same acts by means of an appropriate connecting rod on
the beam attached to the helical weighing springs. A rack or toothed rod is con-
nected to the said beans and is in gear with a pinion fixed to the spindle of the
graduated dial or with the spindle arranged in the hub of a skeleton dial provided
with appropriately cranked arms.
If now a person steps on the platform or an object is laid on the same the machine
will at once operate and weigh the same but the dial will not be visible until a coin or
its equivalent of certain size and weight is introduced through a slot in the casing
which will cause the slide or flap mechanism to operate and disclose the upper part of
the dial beneath the fixed pointer or indicator and thus indicate the weight of the
person or object on the platform of the machine. The flaps or slides are arranged on
rods connected to suitable frames the knife like portions of which are arranged to
oscillate in appropriate bearings.

page_text: These frames also carry weighted rods or their equivalents and one of the frames a
lateral lever with receptacle which is closed by a rotary plate said plate being
provided with a weighted stop. The frame carries further a stop lever which strikes
against a like lever or arm of the second frame.
The entire mechanism is so adjusted that the parts are balanced id est the weights
or weighted rods hang vertical so that the flaps or slides will close the opening in
the case and prevent the dial from being seen. If it is desired to weigh a person or
object and ascertain the weight of the same when a coin of certain value is paid the
said coin must be inserted in the slot in the casing, falls onto a shute and passes into
an appropriate receptacle whereby the balance of the parts is disturbed and an
oscillation of the weighted frames with the flaps or slides produced. In this manner
that portion of the dial immediately behind the flaps or slides and the opening in the
casing will be displayed so that the weight of the person or object on the platform
can be easily read."
As soon
as the person steps off or the weighted object is removed from the
platform the dial returns to its position of rest and the stops on the same will strike
against the coin receptacle and cause the removal of the coin from the same where-
upon the weighted rods will return the flaps or slides to their original position and
close the opening in the casing in front of the dial.
COMPLETE SPECIFICATION.
Improvements in Weighing Machines.
I, GEORGE REIMANN trading under the name of "L. Reimann" of 32 Schmidt
Strasse in the City of Berlin, Germany Manufacturer, 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 relates to improvements in weighing machines in which the pointer
or indicator remains stationary whilst the dial with the weight graduations rotates
behind the casing and is only visible when one or more slides or shutters are caused
to open and disclose the figures representing the weight of the person or object on
the platforin of the machine.
This arrangement allows the weight to be read more easily than in weighing
machines with movable pointer or indicator and the entire parts of the machine are
so protected that they cannot readily be damaged.

page_text: The rotary graduated dial is only visible through an opening in the casing which
said opening is covered by a suitable shutter or slide mechanism which is only caused
to open and display a part of the dial when a coin of suitable weight is introduced
through another opening in the casing and sets the said slide inechanism in operation.
Figure is a front view or elevation of my improved weighing machine.
Figure 2 shows the upper part of my said machine with the slides or shutter
withdrawn so as to disclose a portion of the upper part of the dial.
Figure 3 is a view of the dial which bears the weight graduations the helical
weighing springs and weighing device on an enlarged scale.
Figure 4 is a vertical section of Figure 3 with the inner weighing mechanism in
elevation and
Figure 5 is a front view of the slide or shutter mechanism in closed position the
gradulated dial and position of the said slide or shutter mechanism when open being
indicated by dotted lines.
Figures 6, 7, 8, and 9 are details of apparatus for opening the mouth of the coin
receptacle.
The platform a of my improved weighing mechanism is of ordinary construction
and the lover mechanism of the same acts by means of the connecting rod g on the
beam attached to the helical weighing springs f. A toothed rack is connected
to said beam g¹ and is in gear with the pinion h fixed to the spindle of a graduated
dial or to the spindle arranged in the hub of the skeleton dial k which is provided
with appropriately bent arms k¹.
If now a person steps on the platform a or an object is laid on the same the
machine will at once operate and weigh the load according to the tension exerted on
the helical weighing springs but the dial will not be visible until the proper coin
is introduced through the slot c' in the casing b which will cause the slide or shutter
mechanism to operate and disclose the upper part of the dial beneath the fixed
pointer or indicator d and thus indicate the weight of the person or object on the
platform of the machine. The shutters or slides o¹ o' are arranged on balanced rods
connected to the frames m' m' the knife edges n' n' of which are arranged to
oscillate in appropriate bearings l.
These frames m² m² also carry weighted rods p₁ p² or their equivalents and the
frame m carries further a lateral arm y with receptacle r which is closed by a plate
which turns on the pin or axle s and is weighted balanced or spring controlled so that
the plate t remains closed except when opened by the mechanism.
The frame m carries further a stop lever which engages with the lever or
arm of the frame m².
The entire mechanism is so adjusted that the parts are balanced id. est. the weights
or weighted rods p' p' hang vertically so that the Shutters or slides of o² will
close the opening in the case and prevent the dial from being seen. If it is desired
to weigh a person or object and ascertain the weight of the same when a coin of
certain value is paid, the said coin must be inserted in the slot c² of the casing 6 falls
on the shoot or channel v and passes into an appropriate receptacle where by the
balance of the parts is disturbed and a slight turn imparted to the frame m with the
slide or shutter o' and in consequence of the engaging of the arms u³ ³ a similar
turn is imparted to the frame m² with the slide or shutter o³.
In this manner that portion of the dial immediately behind the shutters or
slides o' o will be displayed through the opening in the casing so that the weight
of the person or object on the platform can be easily read. As soon as the person
steps off or the weighed object is removed from the platform a the dial k returns to
its position of rest and the stops to on the said dial will strike against the pro-
jection upon the plate t of the coin receptacle opening the lid t and causing the
removal of the coin from the same whereupon the weighted rods p' p³ will return
the shutters or slides o¹ o' to their original position and close the opening in the
casing in front of the dial.
:
The operation of the stops to above mentioned will he readily understood on
reference to Figures 6 and 7. The stop is pivotted at wo³ its extent of motion being

page_text: limited by two pins w³ and w³. When the disc is turning in the direction indicated by
the arrow in figure 6 the stop on coming in contact with the projection will be
raised and slip past it but in the return motion the stop is retained in a horizontal
position or thereabouts by the pin w² and acting on the underside of the projection r¹
it raises the same thereby removing the plate or lidt from the mouth of the
receptacle and allowing the coin to drop out.
shown in figures 8 and 9
is mounted on the inside
passed a wire axis r¹ one
whilst on the other end is
to form a cam or striking
which keeps the arm y in
Another device for accomplishing the same object is
which are respectively elevation and plan. A swivel stud
of the front plate b of the apparatus and through this is
end of which is bent back and covered with a pad
loosely mounted an arm y turned up at the end so as
plate y'. The wire x¹ is bent so as to form a support
a horizontal position or thereabouts. Upon the edge of the disc k are projections
which when rotating came in contact with the end y¹ of the arm y. If the rotation
be in the direction of the arrow the projection will strike the arm on the underside
and raise it but if the rotation be in the opposite direction the arm being supported
by the end of the wire cannot turn on its axis and therefore the whole device turns
on a swivel stud allowing the projections to pass and at the same time raising the
projection and opening the mouth of the receptacle r.
am aware of Everett's Patent No. 16,433 dated 13th December 1884 and
Coopers Patent No. 5139 dated 13th April 1886 and do not claim anything claimed
therein.
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 I claim is :
1. In a weighing machine the employment of the circular rotating graduated dial k
and a stationary or fixed pointer or indicator d said graduated dial being entirely
enclosed or covered by the casing 6 which is provided with an opening immediately
in front of the indicator d the said opening being covered or uncovered by the
automatic action of the shutters or slides o' o' which said slides are actuated and act
substantially as described in the foregoing specification and shown in the accompanying
drawings.
2. In a weighing machine the combination with the enclosed graduated dial k and
fixed indicator d of movable shutters such as o' of substantially in the manner and
for the purpose specified.
3. In a weighing machine the combination with the movable shutters o¹ o and
their balanced rods p' p³ of the army which carries the coin receptacle and arm u³
both upon the rod p¹ and arm u upon the rod p² the whole constructed and
operating substantially in the manner and for the purpose specified.
4. In a weighing machine the combination with the balanced rod which carries the
shutter of a coin receptacle such as r provided with a balanced lid or plate t which is
opened by the dial plate as it returns to rest substantially as specified.
W. P. THOMPSON & BOULT.
Agents.