Owner Substances.
Year: 1886

page_text: Owner Substances.
I WILLIAM HENRY BAXTER of the Lawn, Brixton Hill in the County of Surrey
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 machine has for its object the weighing of flour, grain and certain other
substances without manuel labour and the registration on a dial of the quantity so
weighed by the machine: it consists of the weigher and of an agitator, but when
granular substances such as whole corn are to be weighed the agitator may be
dispensed with. The machine is formed of a compound beam vibrating on centres
and having a weight or scale pan at one end and a receptacle for the substance to
be weighed at the other; and when (by means of the agitator if used) the substance
supplied to the weighing receptacle has attained the correct weight a self acting
tumbler lever operates to cut off the supply of substance to the receptacle, and by
transferring its weight nearer to the centre of the beam assists the descent of the
receptacle and thereby to carry a wheel, fixed on the axis of said receptacle, into
gear with another wheel which receives rotary motion by any suitable means the
revolution of the receptacle then takes place and "one" is marked on the counter
and by multiplying the total indications on said counter by the weight of the unit
the total weight passed through the machine in a given time is easily ascertained.
By attaching the counter in the way hereinafter described the registration of each
discharge of the drum is ensured but I do not confine myself to the particular form
of counter shown nor to its application in the manner described and the machine
may be used without any counter whatever. After the contents are discharged
from the receptacle the latter rises and resumes its normal position ready to receive
the next weighing, provided the motive power continues operating, but if it stops,
the weighing is discontinued.
The following is a description of the machine the same letters of reference being
used to indicate like parts in a the figures. Figure 1 is a back view of my
improved machine: Figure 2 is a side elevation: Figure 3 is a cross section on the
line 1, 1, of Figure 1. Figure 4 is a plan: Figure 5 is a sectional side view
showing the parts in the position they will assume when the weighing receptacle

page_text: is discharging its contents: and Figures 6, 7, 8 and 9 are detail views of the
counting apparatus separately.
A represents the frame of the machine, B the beam, which moves on centres
at b b. C is the weighing receptacle which is capable of rotating on an axis in the
cradle c c c c. W is the weight or counterpoise corresponding with the unit of
weight for which the size of the machine is adapted. His the hopper having
grooves ff in the inside of the front to allow the flour or other substances being
weighed, to fall through; T is the tray or valve which cuts off the supply to the
receptacle and which is suspended from the pins fixed in the side of the
hopper HP is a directing plate connected to arms P¹ which hang on the same
pins. S is a set screw in the directing plate P to regulate the distance which the
tray T may fall by its own weight when the beam descends; this weight is
increased when granular substances are being weighed, by a piece of metal h
Figures 2, 3 and 5 which may be attached by screws to the back of the tray T.
By mounting the set screw S in the swivelled plate P, I prevent any rebound of
the tray T when the latter falls against the stop or set screw S.-y. y. are pins on
the tray T which resting on the sides of the beam B keep the tray T from closing
until the beam B descends. M is a descending arm or frame shaped as shown and
fixed to one of the arms of the said beam, or to an arm moving with the said beam:
it has a projection from it at g in which is a set screw against which the self acting
tumbler lever R falls when in its normal position. R is a weighted tumbler lever
of the form shown moving on centres r at the lower part of the arm M and i is a
pin in the frame A which raises the tumbler lever R into its normal position, when
the beam falls back into position for the receptacle C to receive a fresh charge.
These parts constitute what I call my self-acting gearing apparatus which is set in
motion as soon as the balance is attained by the requisite quantity of material
having fallen into the weighing receptacle: the weighted self acting tumbler
lever R being raised by the beam when balancing; the equilibrium of the lever R
is overcome and it falls over into the position shown at Figure 5; its weight is
thus taken from the back of the beam B and added to the front by which means
the wheel N is driven down into gear with the pinion n; at the same moment a
spring finger R¹ on the lever R strikes the pin y on the tray T which operation
finally closes the supply to the receptacle C.
The receptacle C is then turned over and discharges its contents and continues
'to rotate until the recess D¹ in the disc D (hereinafter described) comes under the
pin p when the front of the beam B is allowed to rise and the back to fall. The
lever R then comes against pin i and is lifted into its normal position which is
exactly regulated by the set screw at g: this operation has the effect of diminishing
the shock which would otherwise occur from the sudden falling of the counterpoise.
D is a disc or circle of metal fixed on the axis of the weighing receptacle C and
having a recess D¹ formed in its periphery under the pin or roller p thereby
allowing the beam to fall back into the weighing position: The pin or roller p is
attached to frame A by the bracket Z. On the axis of the receptacle C is the
wheel N which gears into pinion n when the beam B descends low enough; the
teeth are shaped as shown so as easily to fall into and out of gear. The pinion n
is revolved either by the handle x¹ or preferably by power supplied by the band a
to the rigger U; x is the band from the pulley or rigger U to the pulley u
whereby the agitator is kept in motion.
The agitator consists of the cranked rod d having the rigger or pulley u fixed
thereon m m m m are metal plates capable of motion but kept in position by the
pins See are rods moving in holes formed-in the flange of hopper and actuated
by the cranked rod d: e¹ e¹ e¹ e¹ are connecting rods or links jointed to the
rods e e and to the plates m m m m whereby the latter are kept in motion as long
as the rigger u rotates: thus the 'Hower or meal is prevented from blocking while
being supplied to the weighing receptacle C.-X is the counter which is actuated
by the axis of the weighing receptacle C so that the contents cannot be discharged
without the counter registering such discharge.

page_text: This counter is fixed on the axis of the receptacle C and rotates therewith; it is
actuated by a weight X' which by suitable gearing as shown causes the pointer X²
to move forward one division of the dial for each rotation of the receptacle C.
I do not however confine myself to the use of this description of counting
apparatus. h¹ are weights capable of being attached to the tray T and to the
directing plate P respectively by screws or otherwise when granular substances
are being weighed: these are not necessary when weighing flour or other like
substances.
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. The peculiar combination and arrangement of parts of a weighing machine
substantially as herein described and illustrated, with or without the agitator.
2. The peculiar combination and arrangement of parts of a weighing machine
with or without the counter X substantially as herein shown and described.
3. The self acting gearing apparatus consisting of the parts M, rg R having a
two fold action namely closing by means of the pin y on the tray T (or a projection
from it) the supply of material to the receptacle C, and at the same time placing
the receptacle C, in such a position that the toothed wheel N is thrown into gear
with the pinion n whereby the receptacle C is rotated and its contents discharged
substantially as herein shown and described.
4. The pin i in the frame A so placed in relation to the lever R that when the
beam falls back after discharging its load the lever R is lifted into its normal
position as shown in Figure 2, and the action of so lifting the lever R diminishes
the blow or shock substantially as herein shown and described.
5. The directing plate P with its set screw S regulating the position which the
tray T will take up when the beam B begins to descend substantially as herein
shown and described.
6. The apparatus in the hopper H substantially as described for keeping the flour
or meal in a state of agitation substantially as herein shown and described.
Dated this 10th day of April 1886