Improvements in Automatic Weighing Machines.
Year: 1896

page_text: Date of Application (in United Kingdom), 10th Dec., 1896
Complete Specification Left, 10th Dec., 1896-Accepted, 3rd July, 1897
Improvements in Automatic Weighing Machines..
I, FRANCIS HENRY RICHARDS, of No. 303 Main Street, in the City of Hartford,
County of Hartford and State of Connecticut, one of the United States of America,
Mechanician, 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 weighing-machines, an object of the invention being
to provide an improved machine of this character more especially intended for
automatically weighing granular and pulverulent substances and fluids in very large
quantities or lots, such as in the transference of grain, coal, or analogous materials
from car to car, in a single operation of the machine.
With respect to one of its features, the invention includes the employment, in
connection with suitable weighing mechanism, of overloading, load-reducing, and
auxiliary load-supply mechanisms preferably operative in the order named and
during the weighing of a load, whereby the material may be measured with facility
and rapidity and with an accuracy equal to hand weighing.
Another object of the invention is to furnish instrumentalities or safety devices
of a suitable nature for precluding the premature movement or release of the load-
discharging member of the weighing mechanism until a predetermined charge is
made up, at which point said load-discharge member is instantly and automati-
cally released.
In weighing-machines as heretofore constructed, it has been the practice to make
the load in a suitable receiver by continuous or successive additions of material,
the custom being to supply the major part of the load to the receiver in a relatively
short space of time and then deliver the remaining portion of the load in the form
of a slowly-running drip-stream of small volume, which will carry the bucket to
and below the poising-line without affecting the accuracy of the load by the impact
and the momentum of the mass, as would be the case if the whole load were
supplied by a stream of large volume flowing at a relatively rapid rate of speed.
In a machine of very large capacity, it has been found inexpedient to employ
automatic weighing mechanism in which the exact load is made up by the delivery
of single or successive supplies of material to the load-receiver or bucket; as the
momentum and impact of the material against the mass already in the load-
receiver, near the close of the weighing operation, is of such force as to impart an
accelerated downward movement to the nearly-loaded bucket, thereby causing its
premature descent below the poising-line, and, necessarily, the discharge of an
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page_text: under-load, which, it is obvious, in a large-sized machine, results in a considerable
error in weighing.
By my present invention, however, large loads of true weight may be made up
in an automatic weighing-machine by first delivering to the load-receiver an
over-load somewhat in excess of the proper amount to be weighed, then reducing
or under-loading, and subsequently restoring a quantity of the removed mass,
these operations succeeding each other during the weighing of a load and until
the load-receiver assumes a stationary position on the poising-line. I therefore
consider within the scope of my invention any weighing-machine or device of
whatsoever kind including over-loading, load-reducing, and auxiliary load-supply
mechanisms of whatever character operative during the weighing of a load.
In the drawings accompanying and forming part of this specification, Figure 1
is a front elevation of a weighing-machine comprehending my present improve-
ments in one of the embodiments thereof, the valve being open to permit an over-
loading of the load-receiver. Fig. 2 is an end elevation of the machine, as seen
from the left in Fig. 1, showing the load-receiver having descended below the
poising-line with an over-load. Fig. 3 is a view similar to Fig. 2, showing the
bucket having descended from its last position to a point above the poising-line
to permit the introduction therein of a mass of material from an auxiliary load-
supply device. Fig. 4 is a view similar to Figs. 2 and 3, showing the load-receiver
discharging its contents. Figs. 5, 6, and 7 are detail views, on an enlarged scale,
of the load-supply mechanism, the parts being in positions corresponding, respec-
tively, with Figs. 2, 3, and 4. Figs. 8 and 9 are detail views, on an enlarged scale,
of the load-discharging-controlling means in two successive positions. Fig. 10
is an elevation, as seen from the left in Fig. 8. Figs. 1 and 12 are views similar
to Figs. 8 and 9, and illustrate the positions of the load-discharging-controlling
mechanism on the discharge of a load and the ascent of the empty load-receiver;
and Figs. 13, 14, 15, and 16 are detail views hereinafter more particularly
described.
'
Similar characters designate like parts in all the figures of the drawings.
The framework for supporting the operative parts of the machine may be of any
suitable construction, and it is herein shown consisting of the end frames or
columns 2 and 4, mounted upon the chambered supporting-base 3 into which the
charges of material from the load-receiver are intermittently discharged and sur-
mounted by the ton plate 5, which is connected by suitable fastening means to the
two end frames 2 and 4.
A supply chute or hopper is shown at H and will be hereinafter more particu-
larly described, said chute or hopper being conveniently formed integral with the
top plate 5.
The automatic weighing mechanism comprises a suitable load-receiver in which
the loads or charges of material are made up, and that shown herein consists of a
bucket G of the well-known "single-chamber" class.
"
For sustaining the bucket, I have illustrated herein beam mechanism of the
duplicate" type, consisting of the counterweighted scale-beams B and B', ful-
crumed on the base 3, as is usual, and provided with the well-known knife-edges
on the poising sides thereof for supporting the bucket.
For controlling the discharge-outlet of the bucket, a shiftable load-discharge
member in the nature of a gang-closer is shown at L, such member consisting of a
series of overlapping oscillatory plates 6, which are of compound curvature in
cross-section, which, when shut, constitute, practically, a composite structure.
These plates are rigidly mounted on the transverse shafts 7, which latter are
suitably journaled in bearings on the end walls of the bucket, with the exception
of the last one of the series, the shaft of which works in a longitudinal sleeve 8 on
the front wall of the bucket. The respective closer-plates are so organized that
they have a preponderance of weight at one side of the axes of movement thereof,
(herein illustrated as the "left,") so that when freed of restraint at the proper
point in the operation of the machine the mass of material contained within the

page_text: bucket will force said plates open, as indicated in Fig. 4, to thereby permit the
discharge of the bucket-load. The shaft of the first one of the series of closer
plates 6 has rigidly connected thereto the angel-lever 9, the remaining shafts being
furnished with the rock-arms 10, said rock-arms and one arm of the angle-lever
being united by the bar 12, whereby a movement in unison of the respective closer-
plates is insured, as they open or shut.
A relatively long rod is shown at 13, pivoted at its lower end to one arm of the
angle-lever 9, and at its upper end to the rocker 14, the latter, in turn, being
supported by the bucket G for oscillatory movement and constituting, in one of
its functions, a stop for maintaining the overload-controlling valve against opening
movement while the bucket is discharging its load.
It will be apparent that by the employment of the closer mechanism herein
illustrated the amount of power necessary to hold the closer-plates against
discharge movement is materially reduced.
A closer-latch is shown at 15, mounted for swinging movement on the bucket G
and in position for engaging the rocker-arm 16 when the closer-plates 6 are shut.
It will be evident that on the movement of the latch 15 below the arc of oscillation
of the rocker-arm 16, the rocker 14, and hence the connected closer-plates, are free,
to open, to thereby empty the bucket.
For returning the respective closer-plates to their normal positions, the outer
most shaft 7 of the series is furnished with the counterweighted segmental blade 17
of suitable closer-shutting efficiency.
My present invention contemplates the provision of weighing mechanism and
automatically-operating overloading, load-reducing, and auxiliary load-supplying
means operative during the weighing of a load.
The hopper or chute H constitutes a suitable means for overloading or over-
poising the load-receiver or bucket and will be constantly supplied with a mass of
material, said hopper being of sufficient capacity to deliver a stream of relatively
large volume to the bucket.
A supply-conduit is shown at 18, the mouth of which registers with the inlet-
opening of the chute H, and is furnished with the horizontally-disposed check-
valve 19 of the usual construction.
A pair of yieldingly-mounted and oppositely-inclined stream-brakes are shown
located within the chute H, and consists of the approximately flat baffle-plates 20
and 21, having bearing lugs or ears at the outer ends thereof for the reception of
pivot-screws passing through the walls of the hopper. Said plates, being disposed
in the path of flow of the supply-stream to the bucket, will materially break the
force of the impact of the downflowing mass, so that such force is not directly
exerted against the valve, and liability to derangement of the latter is wholly re-
moved. By reason also of the mounting of the two plates 20 and 21 to yield, they
thereby conform to any inequalities in the supply-stream, which is an important
factor, as when the machine is weighing certain kinds of free-flowing substances
which contain occasional lumps, said lumps, as they come in contact with the two
plates, will cause them to give," consequently preventing the chute H from
choking up with an accumulation of material.
For returning the two plates to their normal positions, when such a contingency.
as that just pointed out arises, they will be preferably counterweighted, the
counterweighted arms 22 and 23, attached thereto being shown for this purpose.
The front and rear walls of the chute or hopper will be also inclined, to further
check the momentum of the downflowing stream, which is of considerable volume,
said front wall having a stream-directing lip 24, (see Fig. 2) deflected
above the normal plane of inclination thereof, for a purpose that will hereinafter
appear.
For controlling the stream from the hopper H, a valve 25 is illustrated, said.
valve being pivotally supported between the laterally-extending arms 5' on the
top plate 5, to have a swinging movement under the supply-opening of said chute
or hopper. The stream-directing edge 24 of the front wall of the chute or hopper H

page_text: tends to deliver the downflowing stream of material away from the discharge
edge of the valve and into the concavity of said valve, whereby the power necessary
to effect the closure thereof is materially reduced.
In connection with the valve, I have illustrated valve-closing mechanism which
consists of a counterweighted lever 26, pivotally supported by the framing of the
machine and having an antifriction-roll 27, adapted to bear against the depending
cam 28, which is oscillatory with the valve 25.
In order to prevent the discharge of the load from the bucket while the valve is
open, and also to maintain said valve shut while the closer is open, I have illus-
trated reciprocally-effective interlocking mechanism. The overload-controlling
valve 25 has secured thereto for movement in unison therewith the stop 29; the
rocker 14, to which allusion has herein before been made, constituting a coacting
stop. Should the latch 15 be maliciously tripped, the point 14' of the rocker 14
will impinge against the curved face of the stop 29, and the oscillation of said
rocker, and hence the opening of the closer, will be blocked. When the valve is
closed, the rocker 14, on the tripping of the latch, will be oscillated as the closer
opens, and its curved face will bear against the point 291 of the valve-operative
stop, thereby holding the valve closed, and this relation will continue until the
Closer-plates 6 have resumed their shut positions.
For opening the valve 25, the shiftable counter-weighted lever 30 may be em-
ployed, it being pivoted adjacent to the poising side of the beam B and adapted
on one of its strokes to impart an upward thrust to the connecting-rod 31, which
is jointed to the lateral extension 32 of the valve, thereby forcing said valve open
to permit an overloading of the bucket G by a supply of material from the chute
o: hopper H. The counter-weight of the lever 30 is furnished with a suitable
recess 33, which takes over a pin or stud 33', projecting from the weight of the
adjacent beam B; so that as the beam mechanism descends with the overloaded
bucket, said lever will constitute, practically, a fixed extension of said beam B';
and the rod 31, bearing against the inner end of said lever, the closure of the valve
25 by the lever 20 will be limited in correspondence with the movement of the
beam mechanism, it being apparent that the valve-opening lever 30 exerts a force
in excess of the valve-closing lever 26.
The stop 14, it will be remembered, is operative for maintaining the valve 25,
closed by engaging the valve-operative stop 29, this action continuing until the
respective closer-plates are latched in the shut positions. When a certain portion
of the load is discharged from the bucket G, the weights of the two beams B
and B will overbalance the lightened bucket and thereby cause its ascent, the
valve 25, of course, being locked closed while the load is discharging; and on the
continuation of the beam movement the connecting-rod 31 will be engaged by the
lever 30 on the beam B¹, said lever being thereby held against return movement
with said beam B', so that the latter will fall away from said lever and resume its
normal position. When the closer or closer-plates 6 are shut, the valve 25, of
course, will be released, as also the lever 30; and as said lever drops to its normal
position its stroke will be transferred to the valve 25 through the connecting-
rod 31, against which it bears, for opening said valve.
For reducing the over-load supply to the bucket, a load-reducing opening or
outlet will be preferably formed in a wall of the bucket and at a suitable point
between the receiving and delivering ends thereof, such opening in the present
instance being at the end of the spout 34, which communicates with the interior
of the bucket.
The stream-directing wall of the load-reducing spout 34 will be preferably
inclined downwardly, for a purpose that will hereafter appear.
I have herein illustrated a valve for controlling or regulating the reduction of
the over-load, said valve being reciprocatory across the opening of the load-
reducing spout 34 and being also a two-way valve, the valve being designated by 35.
Said valve 35 is rigidly connected to the supporting rock-shaft 36, said shaft

page_text: being journaled by the arms of the bifurcated bracket 37, attached to the end-
wall of the bucket.
For actuating the valve 35 to cut off the stream from the spout 34, the shaft 36
is provided with a counterweighted arın 38, which normally tends to shut said
valve.
For opening the valve 35 to permit the flow from the spout 34 of the over-load
from the bucket to reduce said load, connections with the beam mechanism will
preferably be employed.
A substantially vertically-disposed rod is shown at 39, pivoted to the counter-
weighted lever 30 and the guide-link 40, which is attached to the framing of the
machine, said rod having the valve-actuator 41 thereon. The valve-supporting
rock-shaft 36 has the rigid projection 42 thereon, which is located in the path of
movement of the actuator 41, and the operation of these connected parts is as
follows; The bucket G will be over-loaded by a stream of material which gravi-
tates from the chute H, such stream being delivered into the empty bucket by the
valve 25; and on the receipt of an over-load the beam mechanism will be over-
poised, and the bucket G with its contents thereby caused to descend to a point
below the poising-line, as shown in Fig. 2. As the bucket and beam mechanism pass
below the poising-line, the valve-actuating bar descending in unison therewith, the
valve-actuator 41 will be carried into engagement with the projection 42 on
the valve-supporting shaft 36, thereby forcing the valve open or swinging it to
the right, and the surplus or over-load within the bucket will flow or pour from
the spout 34 until the mass within the bucket is reduced to an under-load,
diminished beyond that determined upon for a true charge.
As the bucket is lightened, it will immediately rise-due to the action of the
beam imechanism-and to a point above the poising-line, the result being a closure
of the valve 35 by the counterweighted arm 38 and consequently the cut-off of
the stream from the spout 34.
It will be evident that as the beam mechanism rises during the weighing of a
load, the lever 30 will move therewith, but not sufficiently far to cause the opening
of the overload-controlling valve 25.
The mass of material which constitutes the over-load will be preferably directed
into a surplus receiver or auxiliary load-suply device, which in the present
instance is supported independently of the weighing mechanism, being shown
herein as a storage hopper or box 43, firmly attached to the bracket or arm 431,
which projects inward from the end frame 2, and is in approximate vertical align-
ment with the spout 34, it being situated intermediate the load-reducing and
auxiliary load-receiving openings.
As the bucket passes below the poising-line, the surplus or over-load will be
removed therefrom; in other words, the contents will be diminished or reduced
to an under-load, such surplus being delivered to the auxiliary supply-hopper 43.
On the underloading of the bucket, it will be lightened, of course, and will slowly
rise to a point slightly above the poising-line, at which time a part of the material
from the auxiliary supply device will be redelivered to the bucket, again causing
its descent below the poising-line, the bucket slowly oscillating above and below
the poising-line for a limited distance until the true load or charge is made up or
weighed, at which time said bucket will assume, with the beam mechanism, a
stationary or true, poised position on the poising-line, simultaneously with which
the load will be discharged.
It will be apparent, of course, that the amounts of material removed from and
restored to the bucket, will be proportional to the movements of the bucket-
that is to say, the further above or below the poising-line the bucket may
be, the greater or less will be the amounts taken from or delivered
to the bucket, such amounts gradually diminishing in each case until the true
charge is made up.
:
I have also illustrated a valve for controlling or regulating the efflux or outflow

page_text: of material from the auxiliary supply-hopper 43, such valve being designated by 44
and being also reciprocatory across the mouth or opening of said hopper, to
either cover or uncover said opening for permitting the flow of the stream from
said hopper, or for cutting it off. It is apparent, though, that some other medium
than a valve of the kind shown might be utilized for this purpose.
An auxiliary or supplemental load-receiver is shown at 45, it being in the nature
of a conduit or spout communicating with the interior of the bucket-(see Fig. 1)
and preferably having its outer wall inclined toward the discharge-outlet of the
bucket, so that on the opening of the closer L the mass of material which is in
said auxiliary load-receiver or spout may readily gravitate therefrom-as it forms
a complemental part of the true load-into the bucket, from whence it passes
through the discharge-outlet thereof, the load-receiving opening of said spout
being controlled by the auxiliary load-supply valve.
The valve 44 is shown sleeved to the support or pivot 46, which is carried by
the framing of the machine, the hub 47 of said valve being loose on or movable
about said pivot and constituting one member of a clutch, the co-operating or
sliding member of said clutch being designated by 48. The slide member of said
clutch consists of a circumferentially-grooved sleeve having the lugs 49 and 50,
oppositely projecting from the body portion thereof. The inner face of the
hub 47 has formed thereon oppositely-inclined guide-faces 51 and 51, which merge
in, or lead to, the recess 52 into which latter the lug or key 49 is thrust, whereby
the two clutch members may be coupled.
It will be apparent that when the two parts 47 and 48 are coupled, a force applied
to the lug 50 will actuate the valve 44, said lug also being coupled to and practi-
cally forming a part of said valve.
The reciprocating bar 39, to which I have herein before referred, is shown fur-
nished with a by-pass actuator consisting of a spring-pressed dog 53, which, when
the two clutch members are coupled as just described, by engaging under the pro-
jection or lug 50, as the underloaded bucket rises, will thereby swing the valve 44
open to deliver a portion of the material from the auxiliary load-supply hopper 43
to the auxiliary load-receiver 45, from whence it passes into the bucket. As the
actuator or dog 53 falls away from the lug 50, the valve 44 will shut by its own
weight, it being in the nature of a self-closing valve.
When the bucket G assumes a stationary position on the poising-line, the
material within the spout 34, it will be understood, constitutes a part of the true
load; and it is important that it should be discharged from said spout on the
emptying of the bucket. The surplus within the auxiliary load-supply device 43
does not, however, form a part of the true bucket-load; as, from the mass tem-
porarily stored within said device, portions are gradually removed and restored
during the weighing of a load, and it is essential that the material within said
device should be prevented from escaping on the discharge of the true bucket-load.
For this purpose, the clutch consisting of two members 47 and 48 will be prefer-
ably utilized, the movable member 48, being slid away from its mate, or the
valve-hub 47, the lug 49, of course, being withdrawn from the recess 52, so that
when the lever 30, as the bucket discharges its load--the bucket and beam B', of
course, ascending together-moves from the position illustrated in Fig. 4 to and
against the rod 31, the actuator or dog 53, when it impinges against the projection
50, will simply rock the clutch member or sleeve 48 idly or ineffectively about
its support without opening the valve, which for the time being is thrown out of
action.
As a convenient means for actuating the two-way valve 35, to open the same,
or to swing it to the left to cause the material to flow from the load-reducing
spout 34 on the completion of the true load, I have herein illustrated operative
.connections with the closer L. A compound lever is shown at 54, pivotally
supported on the bucket G and consisting of three arms operatively connected,
respectively, with the closer, with the load-reducing regulating-valve, and with a
regulator for the clutch. The rock-shaft 36 is provided with a crank-arm 55, to

page_text: the outer end of which is pivoted the link 56, the opposite end of said link being
likewise joined to the arm 54' of the compound lever 54.
A clutch-regulator is shown at 57, consisting of an angle-lever pivoted at its
angle to the bucket-hanger 57", one of its arms being furnished with a projecting
pin or stud 58, which enters the groove or channel of the sliding clutch member 48,
its other arm being connected with the arm 54" of the compound lever by the inter-
posed link 59. The third arm 54 of the compound lever is connected by the link 60
to the angle-lever 9 of the closer L, or to the first one of the series of closer-
plates 6.
The operation of the parts just described will be clear on reference to the
drawings. Let it be assumed that a true load has been made un in the bucket and
that the latch 15 has been tripped. On the tripping of the latch the closer-plates,
of course, will be released and will be forced open by the weight of the discharging
mass of material from the bucket; and as said plates open the angle-lever 9 will
be oscillated to the left, this action being communicated to the connected valve 35
and moving it to the left, whereby the material within the spout 34 may escape,
and simultaneously the arm 57' of the angle-lever 57 is moved to the right, (Fig.1,)
thereby sliding the clutch member 48 along its support and withdrawing the lug
or key 49 from the recess 52 and consequently throwing the auxiliary load-supply
valve 44 out of action. On the shutting of the closer, the operation just described
will be reversed, so that the respective parts may be returned to the normal
positions thereof.
The bucket has an opening, which is shown herein formed at the outer end of
the spout 61, the inlet-opening of said spout being adjacent to the load-reducing
spout 34 and being also controlled by the load-reducing valve 35.
The spout 61 will preferably be inclined toward the discharge-outlet of the
Fucket; it being understood, of course, that it communicates with the interior of
said bucket, so that when on the completion of the bucket-load the two-way valve 35
is swung to the left in the manner previously described, the material within the
Icad-reducing spout may gravitate therefromi and be delivered by the valve 35
into the spout 61, from whence it gravitates through the bucket and is discharged
with the load therein.
On the discharge of the true bucket-load, and the shutting and latching, respec-
tively, of the closer-plates--the bucket at this time being empty--it is essential
that the material within the auxiliary load-supply box 43 should be removed
therefrom and he delivered into the empty. Ducket, so that the accumulation of
material in said auxiliary load-supply box, and subsequent overflow thereof, will
be prevented.
It will be understood that when the closer-plates 6 are shut, the two clutch
members 47 and 48-the former, of course, being the hub of the valve 44-will
be coupled.
A rigid projection is shown at 62, such projection being in the nature of an
actuator or opener for the valve 44 and being disposed below the lug 50 when the
bucket is overpoised. As the shiftable member 30 returns to its normal position,
an upward thrust will be imparted to the connecting-rod 31, for the purpose of
opening the valve 25, the projection 62 of said connecting-rod being thereby
carried against the lug 50; and on the continuation of the upward movement of
the rod 31 the valve 44 will be opened to permit the escape of the body of material
in the auxiliary load-supply device, from whence it gravitates into the auxiliary
load-receiver 45 and then into the empty bucket G forming the nucleus of the
succeeding load.
My present invention involves the provision, in connection with a load-receiver,
of a load-discharge controller; means for causing the descent of said load-
receiver below the poising-line; and instrumentalities for blocking the action of
said load-discharge controller as the load-receiver passes below the poising-line.
In the embodiment of the invention nerein illustrated, the latch or detent 15,
to which reference has been hereinbefore made, constitutes such a load-discharge

page_text: controller, and its closer-releasing movement will be positively blocked or checked
ns the bucket passes below and above the poising-line during the making up of
a load.
A latch-tripper is shown at 63, it being in the nature of a self-operating member
and consisting of a counterweighted lever yieldingly supported for lateral movement.
The latch-tripper 63 is fixed to a stud 64, projecting outward from the arm of
the counterweighted angle-lever 65, which is mounted on the bucket G. The
latch 15 is furnished with an integral extension or arm 66, operatively connected
to the short arm of the angle-lever 65 by the interposed links 67 and 68.
The tendency of the latch-tripper 63-by virtue of its counterweight is to drop
or gravitate, but this action will be checked during the making up of a bucket-
load by a suitable abutment against which the latch tripper impinges or bears until
the true load is made up, when it is instantly released and, drawing down the latch
15, disengages said latch from the detent or rocker-arm 16, whereby the rocker 14
is released, and hence the closer L is freed of all restraint
A vertical standard or post is shown at 69, rigid with the extended pivot or
knife-edge 691 on the beam B, it being evident that said post oscillates with the
pivot as the beam oscillates above and below the poising-line during the making
up of a load. The post 69 is provided at its upper end with a transverse guide-
plate or head 70, which will preferably be L-shaped in cross section and formed
integral with the end of said post. This guide-plate or head 70, which has a
slideway, constitutes one part of an abutment for arresting the latch-tripping
movement of the latch-tripper 63, the other part being shown as the slide block or
plate 71 fitted in the slideway on the first-mentioned part for movement relatively
thereto, (see Figs. 8 to 11 inclusive) it being held against lateral displacement by
a faceplate or gib 72 secured to the side face of the guide plate 70 preferably by
screws. The upper faces of the two plates or blocks 71 are flush-being formed
on concentric arcs-and having notches or slots 73 and 731, respectively formed
transversely therein, which are adapted to register or come into alignment with
each other when the bucket and beam mechanism assume an equipoised position on
the poising-line at which time said notches will be located in proper position to
permit the tooth 74 of the latch-tripper 63, to drop into the same, thereby pulling
down the latch 15 for effecting a release of the closer L. During the making up
of a load the two plates 70 and 71 will have relatively opposite reciprocatory move-
ments, and as the tooth of the latch-tripper bears upon the upper curved faces
thereof, it will be seen that the said latch-tripper will be held in its ineffective
position, and the latch will not be tripped until the two notches 73 and 731 register
and are located in vertical alignment with said tooth.
A counterweighted angle-lever is illustrated at 74', it being in the nature of a
stroke-transmitter for the sliding block 71, the projection 75 on the end frame 2-
as said sliding plate abuts against the same-checking its further action although
its mate continues its movement, so that the two recesses will be held out of align-
ment. The counterweighted lever 74', to which allusion has just been made, is
supported for oscillation by the extended pivot or knife-edge 691 of the beam B,
the upright arm of said angle-lever normally bearing against the sliding plate 71,
the inward movement of said arm being limited by the projection 76 on the end
frame 2.
The operation of the mechanism for controlling the discharge of the bucket-
load will be obvious from an inspection of Figs. 8, 9, 11, and 12.
At the commencement of operation the sliding plate 71 will bear against the
boss 77 on the removable faceplate 72, the tooth 74 of the latch-tripper 63, having
been withdrawn from the registered recesses 73 and 73¹..
The beam B, resting on the base 3, and the over-load-controlling valve 25 being
wide open, a stream of relatively large volume will flow from the chute H, gravi-
tating into the empty bucket G, rapidly filling and overloading said bucket and
thereby causing its descent to a point below the poising-line, the beam mechanism,
of course, descending in unison with said bucket. As the scale-beam B descends,

page_text: the post 69 thereon will swing to the right through a relatively wide arc, the
upright arm of the angle-lever 74', moving therewith until it meets the projec-
tion 76, which intercepts its further movement, and the relatively-fixed plate 70
will swing
a further distance to the right, its recess 731, being carried past the
plane of the tooth 74. On such movement of the parts the sliding plate will be
engaged by the projection 75, so that for the time being the two recesses are
prevented from registering. As a portion of the material is withdrawn from the
bucket, it, with the beam mechanism, will ascend to a point above the poising-
line, the post 69, moving to the left; and, when the sliding plate 71 abuts against
the upright arm of the angle-lever 741, said plate is moved to the right. This
action then continues, the reciprocal motion of the parts becoming less and less
as the load in the bucket approaches the predetermined quantity to be measured,
at which time the two recesses 73 and 731 will register at a point opposite the
tooth 74, so that, through the force exerted by the weight of the latch-tripper 63,
said tooth may be thrust into the registered recesses 73 and 73', and the latch 15,
by reason of its connections with the latch-tripper, thereby pulled down, so that
the closer L will be released, and its respective plates 6 may be forced open by
the weight of the bucket contents.
As the load is discharged from the bucket, the weights of the two beams B and B¹
overbalance the lightened bucket and will immediately drop to their normal
positions; and in so doing the latch-tripper 63, by reason of its yielding mounting,
will move to the left with the post 69, which action will also raise the counter-
weighted arm of the angle-lever 65 away from the stud 65' on the bucket.
For withdrawing the tooth of the latch-tripper from the registered recesses 73
and 73 on the discharge of the bucket-load, I may employ a device
operative with the closer-holding means such a device being shown at 77¹
as an outward curved arm extending from the connecting-rod 13 and which has
a movement into engagement with the tailpiece or non-counter-weighted arm
of the latch-tripper 63. On the release of the closer L as described, the con-
necting-rod 13 will move through an approximately vertical path until the rigid
arm 771 thereon comes into contact with the tailpiece of the latch-tripper; so that
on the continuation of such movement such tailpiece will be depressed, thereby
withdrawing the tooth 74 from the registered recesses 73 and 731, at which time
the counterweighted arm of the angle-lever 65, dropping to its normal position
against the stud 65', will return the latch-tripper 63 to its normal position.
It is desirable at infrequent intervals to make tests to ascertain if the machine
is working properly, and for this purpose the following-described instrumen-
talities may be employed: A relatively short rock-shaft is illustrated at 78,
mounted on the end frame and carrying at its outer end the actuating-handle 79,
which is preferably clamped thereto, the inner end of said shaft being furnished
with the crank or cam 781. The thumb-piece of the handle 79 will have a spring
er other pin 80, which may be seated in either one of two openings formed in the
end frame. The operation of the parts just described will be clearly apparent
from an inspection of the drawings. On making a test, the actuating-handle 79,
will be grasped and the pin 80 withdrawn from the opening in the frame in
which it may be seated, and said handle will be rocked to the left until said pin
is opposite the opening 81 into which it may be thrust to thereby hold the parts
against movement. As the shaft 78 is rocked, the crank 78' moves into engage-
ment with the non-counterweighted arm of the latch-tripper, thereby blocking or
throwing the same into an ineffective position; so that when the two recesses 73
and 73 register in the manner previously described, the tooth 74 of said
latch-tripper cannot drop into said registered recesses.
It will be remembered that the closer-holding means embody two engaging-
detents, one of these being a rocker-arm 16, the other being the latch 15; and one
of said detents will be provided with a by-pass and preferably at the point where
saia parts engage, for a purpose that will now appear. It will be understood that
as soon as the latch-tripper 68 is returned to its normal position the tooth 74

page_text: As
thereof will immediately bear or rest against the curved and flush faces of the two
reciprocating plates 70 and 71, which constitute an abutment for arresting the
movement of the latch. The rocker-arm 16 is furnished with a by-pass 82 in the
nature of a sliding block constituting the outer end of said arm which is held
against lateral movement thereon by screws 83, passing through longitudinal slots
formed in the face of said by-pass and seated in the relatively-fixed portion of the
rocker-arm, whereby said by-pass may have free longitudinal movement.
the latch or detent 15 is tripped and passes below the rocker-arm or detent 16,
the rocker 14 is free to oscillate, and the closer L consequently may open. On the
return movement of the rocker the by-pass 82 will impinge against the latch 15
which is held against movement and will yield sufficiently so that said rocker-
arm may pass by the latch, and when this action occurs the by-pass 82 will be
instantly engaged by the latch 15.
The operation of a weighing-machine comprehending the herein before-described
improvements is as follows: Fig. 1 represents the positions occupied by the various
parts at the commencement of operation, the bucket and the beam mechanism
being in the clevated or uppermost positions thereof, and the over-load-controlling
valve 25 being wide open, a stream of relatively large volume may flow from the
cute H into the empty bucket, rapidly filling and overloading said bucket and
causing its descent to a point below the poising-line, during which bucket move-
ment the valve 25 will be concurrently closed by the counterweighted lever 26.
(See Fig. 2.) As the over-loaded bucket goes below the poising-line a downward
pull will be exerted on the bar or rod 39, thereby moving the actuator thereon
into engagement with the projection 42 on the valve-supporting rock-shaft 36,
so that the valve 35 will be caused to open and a body of material to flow from the
bucket G through the spout 34 and into the auxiliary load-supply device 43 until
the mass within the bucket is reduced or diminished beyond that determined
upon for a true load. As the bucket is lightened it will be caused to rise by
the weights of the two beams B and B', the bar 39 being thrust upward; and the
actuator 41 on said bar, moving away from the projection 42, will permit the
closure of the valve 35 by the counterweighted arm 38. The second actuator 53
on the rod or bar 39 will then engage under the projecting lug 50, which is keyed
to the valve 44 for the time being (see Fig. 6) and will open said valve, thereby
permitting a part of the over-load to pass into the bucket G to the auxiliary
lead-receiver 45, the operations of the two valves alternating until the true load
is completed, at which time the bucket and beam mechanism assume an equipoised
position.
As the bucket and the beam mechanism are oscillating the two plates 70 and 71
reciprocate back and forth until the true load is made up, at which time the two
recesses 73 and 73' in said plates may register at a point opposite the tooth 74 of
the latch-tripper 63, so that said latch-tripper may move downward and its tooth 74
may be thrust into the said registered notches, and the latch 16 simultaneously
tripped for releasing the closer L, whereby the respective plates 6 thereof may
be forced open by the weight of the contents within the bucket. On the opening
of the closer-plates 6 the rod 56, by virtue of its connection with said plates, will
be instantly drawn down, and, being connected with the arm 55 of the load-
reducing valve 35, the latch will be swung open to the left concurrently with the
opening of the closer-plates 6, to permit the contents of the spout 34, attached to
the bucket G to be delivered to the spout 61, which communicates with said
bucket, such contents constituting a part of the weighed load.
It is to be distinctly understood that my invention is not limited to the devices
shown and described, and that it includes within its field any and all devices of
whatsoever kind which are co-operative with weighing mechanism, in the manner
set forth.
Having now particularly described and ascertained the nature of my said inven-
tion and in what inanner the sanie is to be performed, I declare that what I claim

page_text: 1. The combination, with a load-receiver, of overloading, load-reducing, and
auxiliary load-supply mechanisms operative during the weighing of a load.
2. The combination, with weighing mechanism, of overloading, load-reducing,
and auxiliary load-supplying means operative during the weighing of a load.
3. The combination, with an automatic weighing mechanism, of overloading,
load-reducing, and auxiliary load-supplying means alternately effective during the
weighing of a load.
4. The combination, with a load-receiver, of over-loading means therefor; load-
reducing means supported by said receiver; and auxiliary load-supplying means
operative during the weighing of a load.
5. The combination, with framework, of a load-receiver; overloading means
for said load-receiver; load-reducing means; and auxiliary load-supply means
supported by the framework and operative during the weighing of a load.
6. The combination, with a bucket, of the following instrumentalities operative
in the order named-viz., overloading means, load-reducing means, auxiliary load-
supplying means, and load-discharging means.
7. The combination, with a bucket having a load-reducing opening therein,
of the following instrumentalities operative in the order named during the weigh-
ing of a load viz., overloading means, means for uncovering the load-reducing
opening, and auxiliary load-supplying means.
8. The combination, with framework and with a bucket having a load-reducing
opening therein, of the following instrumentalities operative in the order named
during the weighing of a load-viz., overloading means, means for uncovering the
load-reducing opening, and auxiliary load-supplying means supported by the
framework.
9. The combination, with a bucket having a load-reducing opening, of the
following instrumentalities operative in the order named during the weighing of
a load-viz., overloading means, a load-reducing valve carried by the bucket, and
auxiliary load-supplying means.
10. The combination, with a bucket and with overloading means therefor, of
load-reducing means; and means effective for re-supplying material to the bucket
during the weighing of a load.
11. The combination, with a bucket and with overloading means therefor; of
an auxiliary load-supply device; load-reducing means operative for removing
material from the bucket and for delivering it to the auxiliary load-supply device;
and means for effecting the withdrawal of material from the auxiliary load-supply
device and returning it to the bucket.
12. The combination, with framework and with a bucket, of overloading means
for said bucket; an auxiliary load-supply device supported by the frame-
work load-reducing means operative for removing material from the
bucket and delivering it to said auxiliary load-supply device; and means
for withdrawing the accumulated material from said auxiliary load-supply device
and returning it to the bucket.
13. The combination, with a load-receiver and with overloading means therefor,
of a scale-beam; beam-operated load-reducing means; and auxiliary load-
supplying means.
14. The combination, with a load-receiver, of overloading means therefor; load-
reducing mechanism; and auxiliary load-supplying mechanism comprehending
'a valve.
15. The combination, with a load-receiver, of overloading means therefor; load-
reducing mechanism and auxiliary load-supply mechanism, each of said
mechanisms comprehending a valve, said valves being successively effective; and
valve-actuating means.
16. The combination, with a load-receiver, of overloading mechanism; load-
reducing mechanism and auxiliary load-supplying mechanism, each of said
mechanisms comprehending a valve, said valves being successively effective; and
valve-actuating mechanism.

page_text: 17. The combination, with a load-receiver, of overloading means therefor; load-
reducing and auxiliary load-supplying mechanisms, each comprehending a valve,
said valves being alternately effective; and valve-actuating means.
18. The combination, with a bucket having stream outlet and inlet openings in
a wall thereof, of successively-effective stream-controllers therefor; and actuating
mechanism for said stream-controllers.
19. The combination, with a bucket having stream outlet and inlet openings in
a wall thereof, of successively-effective stream-controlling valves therefor; and
valve-actuating mechanism.
20. The combination, with a bucket having stream outlet and inlet openings
in a wall thereof, of overloading means for said bucket; successively-effective
valves controlling said openings; and valve-actuating mechanism.
21. The combination, with a bucket having outlet and inlet openings in a wall
thereof, of stream-controlling devices for said openings; and load-supplying means
intermediate said openings.
22. The combination, with a bucket having outlet and inlet openings in a wall
thereof, of devices for controlling said openings; overloading means for the
bucket; and an auxiliary load-supply device intermediate said openings.
23. The combination, with a bucket having load-reducing and auxiliary load-
receiving openings, of valves for controlling the passage of material from and to
said openings, said bucket being also provided with an opening positioned to
receive the stream of material from the load-reducing valve.
24. The combination, with a bucket having load-reducing and auxiliary load-
receiving openings, of valves for controlling the supply of material from and to
svid openings; and a spout positioned to receive a stream of material from the
Icad-reducing valve.
25. The combination, with a bucket having load-receiving, load-reducing, and
auxiliary load-receiving openings, of valves for controlling the passage of the
material to said load-receiving openings and from said load-reducing opening.
26. The combination, with weighing mechanism, of a load-receiver; a load-supply
device; and automatically-operated means for removing material from the load-
receiver and delivering it to the load-supply device and for also restoring a portion
of such material to the load-receiver from the load-supply device during the
weighing of a load.
27. The combination, with weighing mechanism, of a load-receiver; overloading
means therefor an auxiliary load-supply device; and automatically-operated
means for removing material from the load-receiver and delivering it to the
auxiliary load-supply device and for also restoring portion of such material to
the load-receiver from the auxiliary load-supply device during the weighing of
a load.
a
28. The combination, with weighing mechanism, of a load-receiver; a load-
supply device; automatically-operated means for removing material from the load-
receiver and delivering it to the load-supply device and for also restoring a
portion of such material to the load-receiver from the load-supply device during
the weighing of a load; and instrumentalities for emptying said load-supply
device at a point subsequent to the completion of the true load.
29. The combination, with a bucket, of an auxiliary load-supply device; auto-
matically-operative means for removing material from the bucket and delivering
it to said supply device and for also restoring a portion of said material to the
bucket from the load-supply device; and successively-operative means for effecting
the discharge of the bucket and also that of the load-supply device.
30. The combination, with a bucket having a load-reducing spout and a spout
communicating with the bucket and receiving material from said load-reducing
spout, of an auxiliary load-supply device; a valve operative for delivering a
portion of the material from the bucket to said load-supply device during the
weighing of a load and for also delivering the material within said load-reducing

page_text: spout to the spout communicating with the bucket on the completion of the load;
and valve-actuating means.
31. The combination, with a bucket having a load-reducing spout and a spout
communicating with the bucket and receiving material from said load-reducing
spout, of an auxiliary load-receiver; a valve controlling said load-reducing spout;
and valve-actuating mechanism.
32. The combination, with a bucket having a load-reducing spout, an auxiliary
lead-receiving spout, and a spout communicating with the bucket and receiving
material from said load-reducing spout, of an auxiliary load-supply device located
between the load-reducing and load-receiving spouts; and means for delivering a
portion of material from the bucket to the load-supply device and from the latter
to the load-receiving spout during the weighing of a load and for also delivering
the material within the load-reducing spout communicating with the bucket.
33. The combination, with a bucket, of a chute having an overload-controlling
valve; load-reducing means; auxiliary load-supply means comprehending a valve;
and an actuator for said last-mentioned valve operative with the overload-
controlling valve.
34. The combination, with a bucket, of a chute having an overload-controlling
valve; load-reducing means; an auxiliary load-supply device comprehending a
valve; and a rod provided with an actuator for said last-mentioned valve and
connected to said overload-controlling valve.
35. The combination, with a bucket having a load-reducing opening controlled
by a valve, of an auxiliary load-supply device located to receive a portion of
material from said valve and comprehending a valve; valve-actuating mechanism;
and means for throwing the valve for the auxiliary supply device out of action.
36. The combination, with a bucket, of a hopper provided with a valve for
delivering material therefrom to said bucket; an actuator for said valve; a closer
for the bucket; and means operative with said closer, for throwing said valve out
of action.
37. The combination, with a bucket, of a hopper provided with a valve sleeved
to a support; a projection disposed in the path of movement of an actuator for
said valve and normally coupled thereto; and means for uncoupling said
projection from the valve."
38. The combination, with a bucket having a closer, of a hopper provided with
a valve sleeved to a support; a projection disposed in the path of movement of an
actuator for said valve and normally coupled thereto; and means operative with
the closer, for automatically uncoupling said projection from the valve.
39. The combination, with a bucket having a load-reducing spout and a load-
supply spout, of an auxiliary load-supply device intermediate said spouts; a pair
CI valves, one for the load-reducing spout and the other for the auxiliary load-
supply device; and a bucket-supporting scale-beam having a rod connected thereto,
said rod carrying a pair of actuators, one for each valve.
40. The combination, with a bucket having a load-reducing spout and a load-
supply spout, of an auxiliary load-supply device intermediate said spouts; a pair
ef valves, one for the load-reducing spout and the other for the auziliary load-
supply device; and a bucket-supporting scale-beam having a rod connected thereto,
said rod carrying a pair of actuators, one for each valve, one of said actuators being
a by-pass actuator.
41. The combination, with a bucket, of a hopper having a valve sleeved to a
support, the hub of said valve constituting one member of a clutch; a comple-
mental clutch member on said support normally coupled to its mate and provided
with a projection disposed in the path of movement of an actuator for the valve;
and means for uncoupling said clutch members.
42. The combination, with a bucket having a closer, of a hopper; a valve for
said hopper, said valve being sleeved on a support and having its hub constituting
one member of a clutch; a sliding clutch member on said support and normally

page_text: coupled to its mate and having also a projection disposed in, the path of move-
ment of an actuator for said valve; and a lever for uncoupling said clutch
members, said lever being operatively connected with the closer.
43. The combination, with a bucket having a closer, of a hopper; a valve for
said hopper, said valve being sleeved to a support and having its hub constituting
one member of a clutch; a sliding clutch member on said support normally coupled
tits mate and provided with a projection disposed in the path of movement of
an actuator for said valve; and a lever for controlling said sliding clutch member,
said. lever being operatively connected with the closer.
44. The combination, with a bucket having a closer, of a hopper; a valve for
said hopper, 'sleeved on, a support and having its hub constituting one member
of a clutch; a sliding clutch member normally coupled to its mate and provided
with a projection disposed in the path of movement of an actuator for the valve;
a lever for uncoupling said clutch; a compound lever; and operative connections
between said levers and the bucket closer.
45. The combination, with a bucket having load-reducing and auxiliary load-
supply openings, each controlled by a valve, of a closer for the bucket; and means
operative with the closer, for simultaneously opening one of said valves and
throwing the other out of action.
46. The combination, with a load-receiver, of a load-discharge controller;
means for causing the descent of said load-receiver to a point below the poising-
line; and instrumentalities for blocking the action of said load-discharge controller
as the bucket passes below the poising-line.
47. The combination, with a load-receiver and with overloading means for
causing the descent of the load-receiver to a point below the poising-line, of a load-
discharge controller; and instrumentalities for blocking the action of said load-
discharge controller as the bucket passes below the poising-line.
48. The combination, with a load-receiver and with overloading and load-reduc-
ing means therefor for successively causing the descent and ascent of the load-
receiver below and above the poising-line, of a load-discharge controller; and
instrumentalities for blocking the action of said load-discharge controller as the
Lucket passes below and above the poising-line.
49. The combination, with a load-receiver, of a load-discharge controller; means
for causing the descent of said load-receiver to a point below the poising-line;
instrumentalities for blocking the action of said load-discharge controller as the
bucket passes below the poising-line; and automatically-operated means for
releasing said load-discharge controller at a predetermined point.
50. The combination, with a bucket embodying a shiftable load-discharge
member normally held against movement by means comprehending a latch, of
overloading means for the bucket, whereby it is caused to descend to a point below
the poising-line; and instrumentalities for blocking the action of said latch as
the bucket passes below the poising-line.
51. The combination, with a bucket embodying a shiftable load-discharge
member normally held against movement by means compreliending a latch, of a
latch-tripper; overloading means for the bucket, whereby it is caused to descend
t a point below the poising-line; and instrumentalities for blocking the action
of said latch-tripper as the bucket passes below the poising-line.
52. The combination, with a bucket embodying a shiftable load-dischargo
member normally held against movement by means comprehending a latch, of a
self-active latch tripper.
53. The combination, with a bucket embodying a shiftable load-discharge mem-
ber normally held against movement by means comprehending a latch, of a self-
active latch-tripper; means for causing the descent of the bucket to a point
below the poising-line; and instrumentalities for blocking the action of the latch-
tripper on said bucket movement.
54. The combination, with a bucket embodying a shiftable load-discharge
member normally held against movement by means comprehending a latch, of a

page_text: counterweighted latch-tripper; and means for holding said latch-tripper against
movement during the weighing of a load.
55. The combination, with a bucket embodying a shiftable road-discharge
member normally held against movement by means comprehending a latch, of a
yieldingly-mounted, self-active latch-tripper.
56. The combination, with a bucket embodying a shiftable load-discharge
member normally held against movement by means comprehending a latch, of a
latch-tripper provided with a tooth; a pair of reciprocatory, recessed plates; and
means for sliding one of said plates relatively to the other, whereby the recesses
may be caused to register, and the tooth on said lateh-tripper may be thrust into
said registered recesses.
57. The combination, with a bucket embodying a shiftable load-discharger
normally held against movement by means comprehending a latch and with a
supporting scale-beam for said bucket, of a pair of recessed plates connected to and
reciprocative by the beam; a toothed latch-tripper; and means for sliding one of
said plates relatively to the other, whereby the two recesses will be caused to
register, and the tooth of the latch-tripper will be thrust into said registered
recesses.
58. The combination, with framework having a projection, of a bucket
embodying a shiftable load-discharge member normally held against movement
by means comprehending a latch; a latch-tripper provided with a tooth; a scale-
beam; a pair of plates connected to said scale-beam and each having a recess, one
of said plates having a sliding movement relatively to the other; and a lever for
sliding said plate, whereby the two recesses in said plates will be caused to register
and into which registered recesses the tooth of the latch-tripper will be thrust.
59. The combination, with a bucket embodying a shiftable load-discharge
member normally held against movement by means comprehending a latch, of a
bucket-supporting scale-beam provided with a post which carries two plates, one
of which has a sliding movement relatively to the other, each of said plates having
a recess which registers at a predetermined point in the operation of the machine;
means for sliding one of said plates relatively to the other, to thereby cause the
recesses to register; and a latch-tripper having a tooth adapted to be thrust into
the registered recesses.
60. The combination, with a bucket embodying a shiftable load-discharge
member normally held against movement by means comprehending a latch, of a
latch-tripper mounted on a pivotally-supported lever and operatively connected
with the latch, said latch-tripper having a tooth; a pair of plates provided with
recesses; and means for sliding one of said plates relatively to the other.
61. The combination, with a bucket having a closer normally held against
movement by means comprehending a latch, of a latch-tripper having a tooth; a
pair of recessed plates; means for reciprocating said plates, whereby the recesses
thereof may be caused to register, into which registered recesses the tooth of the
latch-tripper may be thrust; and means for returning said latch to its normal
position.
62. The combination, with a bucket having a closer, of means comprehending
a rod and a latch for holding said closer against oponing movement, said rod
being reciprocatory and provided with an arm; a latch-tripper provided with a
tooth; a pair of recessed plates; and means for reciprocating said plates, whereby
the recesses will be caused to register, into which registered recesses the tooth of
the latch-tripper may be thrust, said latch-tripper being so situated as to be
returned to its normal position by the arm on said rod on one of the strokes
thereof.
63. The combination, with a bucket having a closer, of means comprehending
a latch for holding said closer against movement; a latch-tripper having a tooth
mounted on a lever operatively connected to the latch; and a pair of recessed,
reciprocatory plates; and means for reciprocating said plates, whereby the recesses

page_text: will be caused to register, into which registered recesses the tooth of the latch-
tripper may be thrust.
64. The combination, with a bucket having a closer, of closer-holding means
comprehending two engaging-detents, one of which is provided with a by-pass.
65. The combination, with a bucket having a closer, of a rocker operatively
connected thereto and having a rocker-arm provided with a by-pass; and a latch
for engaging said rocker-arm.
66. The combination, with a bucket having a closer, of a rocker connected to
said closer and having an arm provided with a by-pass; a latch for engaging
said rocker-arm; and means for normally blocking the action of the said latch.
67. The combination, with a bucket having a closer, of a rocker operatively
connected thereto; a latch for engaging said rocker, said latch having an extension;
a latch-tripper mounted on a counterweighted lever connected by links to the
extension of the latch; and means for normally limiting the action of said
latch-tripper.
68. The combination, with a bucket having a closer, of means comprehending
a latch for holding said closer against opening movement; a lever constituting a
latch-tripper; and a rock-shaft having a crank adapted to bear against one of the
arms of said lever; and means for operating and holding said shaft against
movement.
69. The combination, with a chute having an inclined wall, a portion of which
is deflected above the normal plane of said wall, whereby such deflected portion
is adapted to direct a stream of material away from the discharge-edge of a valve
for said chute, of a valve for said chute; and actuating mechanism for said valve.
70. The combination, with a chute having therein a pair of oppositely-inclined,
yieldingly-mounted baffle-plates, of a valve for said chute; and valve-actuating
mechanism.
71. The combination, with a chute having a pair of oppositely-inclined, counter-
weighted baffle-plates, of a valve for said chute; and valve-actuating mechanism.
72. The combination, with a hucket, of a closer therefor consisting of a series
of overlapping plates; means for operatively conecting and maintaining
seid plates in the shut positions thereof; closer-releasing mechanism;
and a counterweight connected to one of said plates, for shutting the series.
73. The combination, with a bucket, of a closer therefor consisting of a series
of operatively-connected, overlapping, curved plates mounted on shafts having
rock-arms; a bar uniting the several rock-arms; a rocker mounted on the bucket.
and operatively connected to the closer; and a latch for engaging said rocker.
Dated this 25th day of November. A.D. 1896.
Witnesses:
FRED. J. DOLE
HENRY BISSELL.
FRANCIS HENRY RICHARDS.
Haseltine, Lake & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.