Improvements in Scale Weighing Machines.
Year: 1895

page_text: Date of Application, 19th Jan., 1895
Complete Specification Left, 5th Apr., 1895-Accented, 27th July, 1895
PROVISIONAL SPECIFICATION.
Improvements in Scale Weighing Machines.
I, HENRY BURRY Pullen-BurRY Liphook Hants Medical Practitioner, do
hereby declare the nature of this invention to be as follows :--
This invention relates to automatic scale weighing machines for weighing out
predetermined quantities of desired substances such as tea, sugar, rice, etc., from
bulk the said substance being delivered from a hopper and feeder of suitable
arrangement. A peculiar and novel feature of my invention consists in curving
upwards the end of the arm or arms of the scale beam which carries the scale pan
in which the substance is deposited and weighed, this scale pan being of the scoop
shaped pattern and pivoted to the said curved arm or arms. The other end of the
arm or arms of the scale beam carry the weight or weights. The feeder consists
of a tray upon which the substance falls from the hopper and is then feed to the
pans, the tray being given a vibrating or reciprocating movement by suitable
motive power.
When the desired amount of substance has entered the pan the
same falls and owing to the curved arm describes a semicircle so that the pan is
moved away from the fall of substance from the feeder, and the pan may then be
tipped and the substance delivered into a bag or other receptacle. The substance
falling from the feeder drops into a receptacle from which it is conveyed to the
hopper again by any convenient form of conveyer. After the substance has been
tipped from the pan the same returns to its initial position.
Two or more scales may be arranged in a frame as may be found convenient.
Dated this 19th day of January 1895.
E. EATON,
Agent for Applicant.
Improvements in Scale Weighing Machines.
I, HENRY BURRY PULLEN-BURRY, Liphook, Hampshire, Medical Practitioner,
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 scale weighing machines for weighing up pre-determined
quantities of substance, such as tea, sugar, coffee, rice, cocoa, grain and such like.
One of the chief features of my invention consists in curving the end of the scale
beam or arms carrying the scale pan so that when the scale pan falls it describes
an arc of a circle which path causes the scale pan to move away from the delivery
feeder and thus prevent the substance from falling into the pan, until the pan
returns to its initial position.
In order that my invention may be fully understood I now refer to the annexed
drawings in which:-
Figure 1. is a perspective view of my invention.
Figure 2. side elevation of curved beam or arnis.

page_text: is the
a is the scale pan which is pivotally attached at 6 to the curved ends of the
arms c which form the beam and are attached together by the rods or bars d.
This compound beam is supported on the knife edges at e to the frame f.
support or receptacle for the weight or weights used, the support 9 is carried by
the rods i which are fixed to the compound beam. jis a hopper containing the
substance to be weighed which feeds the vibrating feeder k and thence passes
into the scale pan a.
The delivery end of the feeder k rests upon the cam or
eccentric rod 1; the other end being adjustably supported on the semi-circular
guides m through the medium of a socket piece n² by means of a thumb screw
or the like n which bears against the guide m when required, so that the angle or
inclination of the feeder may be altered to suit the substance about to be weighed,
the feeder being pivotally attached by the rods m' to the socket-piece. The rod !
may be rotated by any suitable motive power or by hand, by means of the crank l.
In the scale pan a a sliding bottom or shutter n is employed which is pivotally
attached to the frame o which is in turn hinged or pivotted to the scale pan a at p.
being controlled by a spring or its equivalent pl. 7 is a stop piece for the thumb
to engage on when the finger is operating the projection rattached to the frame o
when opening the slide or bottom, in order to deliver the weighed substance into
a bag or other desired receptacle from the scale pan a. The opening from the
hopper may be regulated by any well known means such as a shutter or the like.
The dotted lines s represent the position of a guide, which catches the overflow and
surplus which falls towards the outlet t and is then conveyed to the hopper by any
suitable form of conveyor.
It will be seen that when the required amount of
substance has been delivered into the scale pan a to overcome the weight / the
same will fall or move in an arc of a circle away from the feeder à as shown by the
dotted lines s' and thus cut off the supply from entering the scale pan a which when
the substance has been delivered from same is returned to its initial position.
The shock or jar of the beam is taken off by spring buffers or such like shown at
in Figure 2. and shewn to enlarged scale in Figure 3 the casing carrying the
buffer operated on by the spring w.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In scale weighing machines a curved or bent beam or beams working upon a
beam and having at one end thereof a rest or support for the weight, and at the
other end a receptacle or scale pan movably attached thereto, in combination with
an adjustable feeder and hopper, and buffers for reducing the vibration.
2. In scale weighing machines a curved or bent beam, so supported that in the
descent of the receiving scale pan, the same is thrown out of the path or flow of
the feed of substance from the feeder.
Ε. ΕΑΤΟΝ,
Agent for Applicant.