US1676833A - Dispensing apparatus - Google Patents

Description

1,676,833 J. L.. MORRIS DAISPENSING- APPARATUS Filed March 1s,- 1924 'r'sheets-shet 1 July 1o, 192s.

July 10, 1928.y 1,676,833 J. vL. MORRIS DI'sPENsING APPARATUS Filed March 1a, 1924 7 sneet-sneet4 2 rma/EINTOR M z. www;

July 10, 1928.

J. L. MORRIS," nIsPENsING APPARATUS INVENTOR4 v' July l0, 1928.

J. L. MORRIS DISPENS ING APPARATUS '7 sheets-sheet' 4 INVEN-roRl Filed March 18, 1924 July 10, 1928;

676,833 J. L. MORRIS DIsPENsING APPARATUS Filed Ma'roh 18, 1924 7 sheets-Sheet 5 f @la lNvENl-'OR @1 .am vm,

July 10, 1928.

J. L. MORRIS DIsPENsING APPARATUS Filed March 1a, 1924 v sheets-sheet s July l0, 1928. y

.1. L. MORRIS DISPENSING APPARATUS Filed March 1s, 1924 7 Sheets-Sheet 7 INVENTOR HHHII Y 0,. n 11: n M m- ,RW Z Z /ff wwf H l uw W 7 7 Y 9 w M W `29 adapted to cooperate with adapted to contain the material to be packaged. This hopper has an outlet 8 controlled by a cut-off means illustrated in detail in Figure 3. This cut-off means may comprise shutter sections 9 and 10 adapted to closely engage along the line 11 on substantially the median line of the outlet 8, as

clearly shown in Figure 2. The shutter section 9 is provided with a pair of racks 12 and the shutter section with a similar pair of racks 13. OneA of the racks of each pair is in engagement with a gear 14, the engagement being with substantially diametrically opposite portions of each of the gears whereby rotation of the gears will cause the .sections to move uniformly and in opposite directions. These sections are Ymounted to slide in suitable guides 15 suitably, positioned with respect to the outlet 8. With this construction, it will be apparent that with the shutter sections in the position illustrated in Figure 3 the flow of material from the hopper 7 will be prevented, while with the sections in open position, a free flow will be permitted, the rate of flow depending' upon the material being. handled and upon the extent of opening of the sections.

The sections of the cut-off means are adapted to be manually moved to open position by a bell crank lever 16 pivotally mounted on a pin 17 carried by the frame 2. One end of the bell crank lever is shaped to provide an operating handle, while the opposite end is pivotally connected to a link 18 which is, in turn, pivotally connected to the shutter section 9.v Adjustably mounted on the link 18 is a movable stop 2O having an indicating finger 21 adapted to cooperate with suitable graduations 22 on the link. The movable stop may be held in any desired position by a set screw 23. The graduations 22 are so arranged that they indicate the extent of opening of the shutter sections 9 and 10, it being apparent that the graduations thereon may be of any arbitrary character. Positioned so asto engage the movable stop is a fixed stop 24. Carried by the pin17 is a spring 25 arranged to normally turn the bell crank lever 16 in a clockwise direction to move the shutter section 9 to the right, as viewed vin Figures 1, 2 and 3, and the shutter section 10 to the left, thereby cut-ting 0E the flow through the outlet. Normally, this closing movement of the shutter sections is prevented by a detent 26 adjustably mounted in a slot 27 formed in the projection 28 on the shutter section 10. This detentmay also be provided with an indicating linger graduations 30 on a projection 28, these graduations preferably being similar to the graduations 22 and arranged in reverse relationship.

Mounted to cooperate with the detent 26 is a trigger 31 preferably having a pivotal mounting 32 in a casting 33 projecting outwardly from one. side of the hopper 7. On its under side the trigger 31 carries a roller 34 adapted to cooperate with the detent 26. By referring more particularly to Figure 7 of the drawings, it will be seenthat this detent has its outer side gradually curved7 while its inner side forms an abrupt shoulder. In this ligure, the roller 34 is shown in the position it occupies with relationk to vthe detent when the shutter sections are closed. Tn the drawings, the movable stop 2O and the detent 26 are shown in such position that their respective indicating lingers cooperate with the graduation 3. This corresponds, with the graduations shown, to approximately a half open position of the shutter sections. In operation, with the movable stop and the detent arranged as described, the operator will grasp the handlel portion of the bell crank lever 16 and move it in a counter-clockwise direction. This will serve to open the shutter sections to an extent restricted by the engagement of the movable stop 20 with the fixed stop 24. At this time, the curved surface of the detent 26 will have-passed under the roller 34 and permitted 'the roller to drop ahead of the detent, as indicated in dotted lines in Figure 7. Gravity acting upon the trigger 31 will maintain the roller 34 in this position, and thus prevent closing of the shutter sections untilthe detent is released. It will be understood that with each change of setting of the movable stop 20, the detent 26 will be correspondingly adjusted whereby proper cooperation at all settings is insured between the detent and the trigger. In operation, the scales 6 are fro placed on the platform 5 that a receptacle R on one of the platforms will directly underlie the outlet 8. Upon the accumulation of a predetermined weight of material in this receptacle, the detent is adapted to be automatically released. This may be accomplished by securing to one of the platforms an arm 35 having an adjustable extension 36 carrying a clamp 37. This clamp is adapted to cooperate with a vertically extending rod 38, the upper end of which shaped to engage the trigger-loop 39 of a balance or scale beam 40. This beam is delicately mounted to move about bearings 41 within the limits of the keeper 42, as well understood in the art. On one end of the beam is a cage 43 within which are spaced parallel tracks 44 upon which is adapted to travel a ball 45. In order to protect the tracks 44 from any accumulation of foreign material. and at the same time to permit observation of the ball 45, the cage may be provided with trani;- parent means 46.

At the commencement of the filling operation of a receptacle, the beam 40 will be so balanced that it will occupy the position il- I :torni carrying the `arm 35.

action. ot the rod .38 this niovenrent .villbe end .ofliatrigger releae ,50.

,ally `mounted .on the casting 33.

Aarm 52 formed on ger 3l, clearly position.

Y release. the hammer lustrated in vFigures:l yanda .withthe hall illat the extreme right hand end oli' `its cage. .rllhisunayibe accomplishedby the provision of ,anwadjustable weight i7 on the beam.A 'I he receptacle. having' been placed; .in position, and the shutter sections opened` by l operator ai:v belore described, material W `continue to'flouT into the receptacle until the Weight thereoiV is sutiicient to lower the plat- ,Through the transmitted tothe beanillO, causing the same .to rock ,in Aa counter-clockwise direction ,whereby `sutlicient `inclination .will be .im-

parted to the tracks le to permit the ball 45 lio roll thereon to the left; At approximatelynthe. end ot its path ot travel, the ball engages a hammer/t8 normally. urged inwardly by ian extremelylight spring 19, the spring being subftantially .ofthe order. ot. theiric- `tion betvveeirthe ha-mn'ieixand its mounting .whereby it insures. movement ,ot the hammer into the .path ofu travel ,o'l the ball but does not. serio uslyi interfere .with its. n'iovement.L to dotted. lineposition as indicated' in Figure fl.

.'Ihe impact of' :the ball .With e the hammer forces the hammer `outwardly into its dotted linepositioinin which it. engages the. upper This trigger release has La;,hifurcated .lower portion pivot- :The lingers 5150i this,biturcatedportion underlie a cross illustrated in iFigures l and ,6. AThe impact of thehaninner #i8 with the trigger release causes the samel to move in counter-clockwise direction, the pivotal 'mountingthereot causingthetingers 5l to .move upwardly and lift A,with them the cross -arin 52. andthe triggerxl. `,This upward y,movement ofthe trigger Blisisutlicient to raise -the nollergtout ot'liolding position -ivith the .tdetent `*26, i thereby releasing the same. and permitting the springs Lrtoinstantlyfinoite the :shuttersections to closed Upon removal ot the `tilled receptacle 'from thescales, the arnrBS will be raised upwardly, thereby inclining the tracks in the opposite directionand causing the ball .45.- vto `return `to its original position and The tracks preterably have .ai portion 5.3 arranged at a parted tothe trigger release slightly `steeper inclination `than there- Vmainder.otithe tracht. This portionisso .located that itm'illy come into .action .suhstantially assoon as the ball .leaves the hammer 48 to thereby accelerate its return movement. rfhis insures a return movement ot :the ball such that on the next release operation, the benet of the full travel ot' the ball `villa he obtained. As Athe movement iincomparatively small, it Willbe apparent that it is de sirable to delusately. adjust' the same therehy this movement Will be effective tor. raisby vmaking the, release a f more ldelicate one,

lbo'diment of my invention, I

40. the mechanism is identical Withthat A,herethe outer end of: the trig` ever, l0() added thereto in each instance.

`102 are constructed ot angle ftion I have provided `necessity for clamps is eliminated and the Uered. This isaccomplished by securing to each otsthe corner posts/as clear-lyshoum in 'detail inFigures ll' i (id-adapted to be engaged by apinion 6l on `each end ot each of the shafts 62 vare intergeared 'tor .rotation in `opposite directionsbylineans -ol inggthetrigger `3l ,the desired amount ,This

adjustment may beeliectedby a screw ll 1llustrated in detail` in,Figure18,threaded through a bracket 55 carried by.y the it-rameill and extendingl overa portion `of the tri ige-r 'J0 release :slightly above fits pivotal moruitiijig. By screwing this wen form scales (instead ofthe evenfbalance scales before described. rThe scale beam 56 carries a projection` 35 cooperating with an adjustable rod 38. The upperend olf thisl rodpasses through a guide 57 into engagement ,withvthe outer end Vof the" beam In other respects the yconstruction ,ot

totore described. In operation, When-the IWeight ofrmaterial inthe receptacle is suiiicient toraise thescalebeain 56, the r-od y.38 y Willbe raised andthe beam 40 inclinedin such direction thattherball-vrolls to the W0 Inr Figure 4l0 of the drawings thereis ,illustrated a slightly V.di'llerent embodiment of my invention adaptedftor luse with even balance scales et the general character shown in Figure l. `Ingthis figure of the drawings Iha've designated partscorresponding to parts heretofore,described,with the same reference characters having, how- In the trame posts iron and are extended .upwardly `to directly support the hopper. The horizontal 'trame T164 is secured Yat any .desired elevation, as indicated.

i lo

this form .of my invention ililith the form oli' theeinvention shown vin Figure l, adjustment of the platform 5 `was .obtained by individually .loosening each ot` he corner clamps .andy then raising the platform. lVith the present torni et myinvcnmeans whereby the 'lframeinay be unit-firmly raised and lowand l2, a` raclrbar `shafts G2. The

simultaneous CII a transverse shaft 63 having adjacent each end thereof a worm 64 meshing with worms 65 on the shafts 62. At one end the shaft 63 may be provided with an operating handle G6. IVith this kconstruction it will be apparent that as the handle is turned., the platform will be 'raised or lowered. The pitch of the threads on the worms and worm wheels is such that when the handle is released, the thread will form an efficient lock, thereby effectively holding the platform in its adjusted position. This makes it possible to readily move the platform as desired for fil-ling receptacles of different sizes whereby the fall of material. from the hopper reduced to a niininiuni.

Instead of utilizing vclamping arms 35 for coimecting the trigger actuatino' mechanism to vthe scales, I may provide a clamp G7, as shown in detail in Figures 16 and 17, carrying an arm 135 with an ad justable'eXt-ension This extension in turn carries a clamp 137 cooperating with the rod' 138 having a pivotal connection with the end of the scale beam 1110. In this modification the opposite platform of the scales is adapted to hold the package, the lreiease mechanism being operated upon the upward movement of the rod 138 similar to the operation taking place with the plat-form scales illustrated iny Figure 9. f

The forms of my invention heretofore described have been particularly adapted to the handling of bulk material, such as fiour, coffee, sugar and the like, adapted to readily flow in their natural condition. By reason of the adjustments provided, the eX- tent of opening of the shutter sections could be varied, thereby causing a larger or smaller flow, depending upon'the material being handled and the size of the package or receptacle being filled.

In Figures 13, 1-1, 15 and 13 there is illustrated an apparatus particularly adapted for the handling of fluids. These fluids may be of the character adapted to fiow freely under ordinary conditions, or maybe of the character adapted 'to be fed under pressure, as is the case with some of the heavier oils and greases, or fed under either heat alone or heat and pressure, as in the case of lard. For such materials the hopper is entirely eliminated and the material is supplied by a pipe having a manually operable control valve 71 and an automatically operable eut-off means 72. It has been founddesirable to utilize the shutter sections for operating the cut-off valve 72, and to permit such an operation the shutter valve sections may be each formed with a recessed end 73. In Figure 15 I have illustrated shutter sections operating exactly in the manner disclosed in Figure 2, but of slightly different construction simplifying and cheapening the manufacture thereof.

The recesses 73 are of such size that when able mesh placed across its outlet.

the shutter sections are in closedposition, as illustrated in Figure 15, there is sufiicient room for the passage of the feed pipe 70. The valve 72 may be of the well known construction comprising an upper sealing member and a lower wedge-shaped seating member having an upstanding bearing 74 thereon 'iermitting substantially universal movement of the seating member. These members are mounted to swing with a shaft 75 into operative position, as illustrated in Figure 18, and into inoperative position within the chamber 7 G. These i'novements may be accomplished by providing the shaft 75 with an arm 77 bifurcated at its outerl end to straddle the pin 78 projecting upwardly from a rod 79 adjustably mounted in the post 30 secured on-the lower side of'one ofthe shutter sections. By reason of this construction, it will be apparent that as the shutter sections are separated,` the rod 79 will be moved to the right, as viewed in Figures 15 and 18, thereby turning the shaft 75 in a clockwise direction and moving the cut-ofiI means 72 into inoperative position. This will permit a fluid flow through the pipe 72 until suchv time as vthe weight of the receptacle is sufficient to tip the scales and thereby operate the trigger release through one of the mechanisms already described. This will instantly cause the springs controlling the shutter sections to move the same to closed position, thereby turningV the shaft 7 5 in the opposite direction to move the cutoff 72 into operative position. I have found that with certain fiuids there is a tendency for drops to accumulate even after the cutoli means has been moved to operative position due to accumulations on the sides of the discharge outlet. This may be effectively overeome with certain materials by providing a removable nozzle Sl having a restricted outlet of the construction illustrated in Figure 18. In other cases I may utilize a nozzle 81', as shown in Figures 19 and 20, having a piece of screen S of suit- In order to permit clearing of the discharge nozzle should the same become clogged, I preferably provide a clean-out plug 82 as shown in Figure 13 so located that upon its removal a cleaning rod may be moved freely through the lower end of the pipe 70. It will be understood that if desired a suitable fluid, such as hot water or steam, may be used as a cleaning medium. The construction and operation of the shutter sections in the forms of my apparatus illustrated in Figures 10 and 13, respectively, is the same with the exception that in Figure 10 the shutter sections are not provided with recesses 73 and are not used in conjuction with a supplemental cut-off 72 and its operating connecions as required for the handling of flui s.

The present application is a division in part otiny application, Serial tiled March E23, 1928. j

It will be apparent to those skilledinthe art that the constructionoi the lsupporting frame may bemodilied at will byvaiyiiig the number ot Supporting standards, or otherwise, to thereby facilitate the use oi theiapjiaratus and removal oi filled packages therefrom. j

In Vcertain cases it may befdcsired to increase` this effectiveness ofthe Arolling ball to secure a greater' impact. This may'easily be accomplished Within the scope oi my invention by merely shortening the length of the scalebeam 40', 40-`o'r 140, or moving the point of` attachment ot the rody 3S, 38 or 138 sloivto its pivotal mounting.

lith all ofthe iforii'isot` my invention illustrated herein there isy provided a cut-oil means which is4 auton'iatically,releasednpon the accumulation Vina re'ceptacleor package oi' a predetermined amount ofiiiaterial.V fis soon" 'as the lillcd` 'package or 'receptacle has been removed j' i l 'ointne scalesraiid a 'fresh receptacle placed in position tl eoperator may quickly set the apparatus`` by simply drawing the handle the controlling bell crank doivnivardlyto openthe 'shutter sections. Th'e'exteiit of opening'movement of the sections may bev varied and controlled at will, and the sections may be locked in any desired open position by the detent and trigger; This permits` uniform lcpiantities ot' the material to be packaged as rapidly as it ispossible for the operator-"to remove filled packages or 'receptacles and supply new ones, allovving time only for the actual filling operationi l Gtheradvantages arise trom the provision of'thesecond scale'beam, whereby the releasing mechanism for the triggermay be itself delicately balanced so as to move easily and effect the desired release of the shutter sections.

Further advantages arise from the provision of a positively acting or impact means for effecting the trigger release.

I claim:

l. A dispensing device for use With Weighing scales, including a hopper, a support therefor, a shutter for controllingthe discharge from the hopper,'manually operable means for opening the mechanism for holding the shutter open, means including a pivotal beam lor actuating the trigger, and means ior transmitting motion from a Weighing scale to the beam.

2. The combination in a Weighing apparatus, of a pair of scale beams, means cooperating With one of said beams for supporting the package being iilled, means for delivering material to said package, means operatively connecting said scale beams for moving the same in unison, and shiftable shutter, a trigger meansca'r'ried by the other beamf-or cutting off the delivery otl said material 'upon-movement of said beams onev direction.l`

3. The combination with a Weighing scale having a scale beam, oi:A a materiall dispensing means, movable cut-oli' means therefor,

'and a second scale beam, operatively Iconncctedto said weighing scale igor controlling the movement of saidv cut-oftq` means in f'at least one direction. l g

41j. The con'ibinationvvith a lWeighii'ig scale having a scale beam, of amaterial dispensing means, movable cut-oil' means therefor, andV a secondscale beam operatively connectively to said Weighing scale for controlling the movement of said cut-'oli meansyin at least one direction, said scale beam having means tor adjusting the balance thereof.

5. The combination With a-Weighingsc'a'le,l of a material dispensing means, movable cut-oit means therefor, and a'rollinfg weight operatively connected to said Weighing scale for initiating the movement 'oii'saidciit-o'll': means in at least one direction. r

6. Inv a material handling apparatus, a material dispensing means, a. cut-o'VA therefor normally urged toward operative position, a trigger iior holding said cut-olf in inoperative position, a triggerv release, iveighiiigscale receiving material 'lronrsaidV disjgens-` ing means, and a Weight bodily and suddenly shilitable upon movement of'rsald scale for operating said trigger release. l

7. AInv a material 'handling apparatus, ay diff-` pensing means, a cut-oil compri-'sing oppositely movableshutt'er sections, means Vnormally urging said sections to closed position, an adjustable trigger mechanism for holding both of sail sections-in openposition, and release means including `a pii'r'otfarlly miounted beam for releasing the trigger -mechanism irrespective or the adjustment thereo't'.

8. In a material handling appara-tus, a dispensing means, av cut-off comprising oppositely movable shutter sections, means normally urging said sections to closed position, means for holding said sections in open position, and impact operated release means for said holding means.

9. In combination with a complete Weighing scale including Weight indicator, a portable supply hopper, and sca-le operated -means including a scale beam separated from the weighing scale to interrupt the discharge from. said hopper. f A

10. In combinationA with a weighing scale, a portable supply hopper, means to adjust said sca-le for a predetermined amount of discharge from said hopper', and scale operated means including a scale beam separated irom the Weighing scale to then interrupt said discharge. Y y

l1. In combination with a. Weighing scale, a portable supply hopper, a movable control shutter therefor, means forl adjustably limit- NTO a portable supply hopper, means to adjust said scale 'for a piedeterinined amountl of discharge from said hopper, means to regulate the discharge opening thereo't, and scale operated means to interrupt said di-:'cliarge upon reaching said predetermined amount..

13. In combination with a weighing scale, a portable supply hopper; scale operated means to interrupt ther discharge from said hopper and manually operable selig-locking means toregulate the height ot said hopper above said scale. Y

14. In combination with a Weighing scale, a portable supply hopper, shutter for the discharge opening thereof, manually operable adjustable means for opening the shutter, means to maintain said shutter in the selected open position, spring actuated means to inovesaid shutter-into closed position and scale operated means toA release said shutter.

15. In combination with a Weighing "calc, a portable supply hopper; a shutter for the dischargefopeiiing thereof, said shutter being p composed of tWo abutting sections oppositely slidable in a common plane, manually operableV means to separate said sections, means to maintain said shutter Sections separa-ted, spring actuated means to move said sections into abutting or closed position, and scale operated means to release said shutter.

16. In combination With a Weighing scale, a portable supply hopper, a shutter for the discharge opening' thereof, said shutter being composed of two abutting sections, means to simultaneously and equally slide said sections in opposite directions in a common plane, manually operable means to sepa-ratesaid sect-ions, means 'to maintain said shutter sections separated, spring actuated means to move said sections into closed position, and scale operated means to release said shutter.

17. In combination with a Weighing scale, a portable supply hopper, a shutter tor the scale operated means to release said shutter.

18. In combination with a Weighing scale, a portable supply hopper, a shutter for the discharge opening thereof, said shutter being composed of a plurality of cooperating sections oppositely movable, manually operable means to separate said sections, sell locking means to maintain said sections separated, means to move said sections into closed position upon release thereof, and scale'operated means to release said sections.

, 19. In combination with a Weighing scale, a. portable supply hopper, a shutteitor the discharge opening thereof, said shutter being composed oftWo coopera-ting sections, means to simultaneously slide said sections in opposite directions, means to separate said sections, means to maintain said sections separated, means to move said sections to closed position when released, and scale operated means to release said sections. p

, In testimony whereof I have hereunto set my hand.

JoLLY L. Moinns.

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