US1628177A - Filling machine - Google Patents

Description

May 10, 1927- D. NELSON FILLING MACHINE Filed June 18. 1925 6 Sheets-Sheet l SwenIoz Lea/L19 D. Nelson L. D. NELSON May 10, 1927.

FILLING MACHINE 6 Sheets-Sheet 2 Filed June 18. 1925 L 7 Lu 51 May 10,1927. 1,628,177

I L. D. NELSON FILLING MACHINE Filed June 18. 1925 6 Sheets-Sheet 3 gnaw/what,

Lam's D. Jl/el $017 L. D. NELSON FILLING MACHINE May 10, 1927. 1,628,177

Filed June 18. 1925 G'Sheets-Sheet 4 May 10 9 D. NELSON FILLING MACHINE Filed June 18. 1925 6 Sheets-Sheet 5 May 10, 1927' NELSON FILLING MACHINE Filed June 18. 1925 BA Juli,

6 Sheets-Sheet 6 Lama D. Nelson 7 Patented May 10,1927. i 1,628,177

v,UNITED STATES PATENT OFFICE.

LEWIS D. NELSON, OF COLDWATER, MICHIGAN, ASSIGLTOR OF ONE-EAL]? '10 ROBERT M. NEALE, OF UNION CITY, MICHIGAN.

rILLmemAcnmE.

Application filed June 18, 1925. Serial No. 37,955.

This invention relates to improvements in Fig. V is a fragmentary perspective view filling machines. of certain parts shown in Fig. IV with the My improvements are especially designed spout in released or tripped position.

by me for filling bags with cement, lime or Fig. VI is a detail section on a line corother-heavy materials, the. embodiment illusresponding to line 6-6 of Fig. VII show- 60 'trated being especially designed for the ing details of the ejector or discharge mechhandling of cement. My improvements anism. are, however, readily adapted and desirable Fig. VII is a detail section on a line corfor use in handling other materials. responding to line 77 of Fig. VI. 1 The main objects of this invention are: Fig. VIII is a detail view partially in ver- 65 First, to provide an improved bag filling tical section on a line corresponding to line machine which is automatic in operation 8-8 of Fig. III showing details of the drivand is controlled .by the weight of the filled ing mechanism. bags, Fig. IX is a detail view partially in sec- Second, to provide in a bag filling mation on a line corresponding to line 9-9 of 70 chine an improved delivery mechanism III showing further details of the drivwhich is of very large capacity. mg or operating mechanism.

Third. to provide an improved filling ma Fig. X is a detail view partially in secchine which is not likely to become clogged tion on a line corresponding to line 10-10 in use. of Fig. III. p a

Fourth, to provide an improved filling Fig. XI is a fragmentaryv view showing machine which is easily operated, it only bedetails of the feed valve operating mechaing required that the operator shall place nism. the empty bags or receptacles upon the fill- Fig. XII is a detail view mainly in sec i spou tion on a line corresponding to line 12-42 Objects pertaining to details and econo of Fig. VII showing still further details mice of construction and operation of my in of the feed valve operating mechanism.

vention will definitely appear from the de Fig. XIII is ahorizontal section on line tailed description to follow. 1313 of Fig. VI showing details of the I accomplish. the objects by the devices rotor. H s5 and means described in the following s eci- Fig. XIV is a front view of the combined fication. The invention is clearly defined spout carrier and tr l m b and pointed'out in the claims. Flg. XV is a detail view showing details A structure embodying the features 'of of the carrier actuating means. 35 my invention is clearly illustrated in the ac- F 1g XVI is a horizontal section correc-ompanying drawing forming a part of this sponding to that of Fig. VII of a modified application, in which: form of e ector mechanism. 1

Fig. I is a fragmentary front elevation of Fig. XVII is a detail section showing a filling machine embodying the features of further details of the actuating mechanism.

40 myinvention, the hopper being omitted and In the drawing the sectional views are the lower portion of the frame being broken taken looking in the direction of the little y i arrows at the ends of the section lines and The machine illustrated is a duplex masimilar numerals of reference refer to simichine comprising two filling and Weighing lar partsthroughout theseveral views. h i 7 w Referring to the drawing I provide a 190 Fig. II is afragmentary side elevation main supporting frame 1 of suitable characlooking from the left of Fig. I, portions beter to support the hopper 2 and the operating brokenaway for convenience in lllusing mechanisms. The structure shown in nation. .F1g. 1 s, a double unit machine with the 50 Fig. III is a fragmentary rear perspecunits arranged slde by side. However, as tive view showing details of the operating the units are duplicates a description'ot' one ynechanisnm be suflicient. I,

Fig. IV is a fragmentary front perspec- The material may be supplied to the hop tiveshowing the parts in one discharging per 2 by any'suitable means. The hopper position. has a discharge neck 3 for each unit, the

neck in effect being a part of the hopper. At the bottom of the hopper is an ejector cylinder 4 open at the top to the hopper.

The rotor designated generally by the numeral 5 is disposed horizontally in the bottom of the cylinder and comprises a bottom plate or side member 6 and a top plate or side member 7 having a central inlet opening 8 therein with the blades 9 arranged between these side members. The blades 9 are bolted to the radially disposed Webs 10 extending between the side disks or plates of the rotor and connecting the same.

The bottom plate of the rotor is provided with a central conical portion 11 disposed below the opening 8 in the top plate, the

inner ends of the blades overlapping or extending upon the sides of this conical portion,'which constitutes a deflector for directing the material passing through the openin 11 outwardly between the blades.

The ejector cylinder has a tangentially disposed discharge port 12 and a peripheral the periphery of the rotor and opening to the cylinder above the top plate of the rotor,

as,shown in Fig. VI. The discharge passage is provided with a pair of slide valves 15 and 16, the valve 15 being operated by a mechanism to be hereinafter described, while the valve 16 is manually operated from the hand lever 17 on the rockshaft 18 which is provided with an arm 19 connected to the valve, see Fig. XII. I

The upper ends of these valves project into a chamber 20 which opens into the port 12, this chamber aving a clearance opening 21. The chamber andclearance opening are; of such size as to provide a clearance for the valves, that is, to provide for the escape of any material that may be lifted by the valves in opening the same. Both valves are shown in open position in Fig. XII and in closed position in Fig. VII.

Adjacent the discharge of the cylinder I provide a wear plate 22 which isin the form of a segment disposed in a recess 23 in the side of the cylinder. The rear end of this plate is bolted at 24to the cylinder, its other end being adjustably supported by the screw 25 so that it may be accurately ad usted relative to the rotor 0r into proper relation with the rotor to insure effective discharge of the material. This is a very desirable feature as it is found that a substantial clearance at this point detrzicts from the efiiciency of the l I'OtGIfBIIld also that there is a tendency for rapid wear at this point, particularly when handling such material as cement.

This adjustable wear plate segment 22 provides for adjustment for wear.

The cylinder is provided with a hand hole 26 with a removable cover plate 27 arranged so. that the hand hole provides a recess at the periphery of the rotor. affording access -with a plurality of rearwardly curved clearto the rotor should occasion'require, and this recess also serves to collect'slugs or worn grinding balls and the like which may be in thecement. These grinding balls or slugs are thrown into the pocket by cen- 1' trifugal force and collected, preventing un-- due wear or breakage of the rotor. I

The bottom plate 6 of the rotor is provided ing blades 28 which extend outwardly from the packing 29. This packing is disposed be tween the rotor, which has a conical iecess 30 to receive the same, and the collar-like flange 31 on the rotor shaft 32. The rotor is threaded upon the upper end of the rotor shaft as indicated in Fig. VI clamping the packing 29 between the rotor and this collar, the packing rotating with the rotor as a unitary part thereof. The bottom of the cylinder is recessed at 33 to receive the collar 31,'the edge of the packing projecting beyond and overlying the edge of the recess. This effectively protects the shaft bearing 34, it

ance blades on the under side of the rotor the material is effectively prevented from reaching the rotor shaft bearings.

With the parts thus arranged, any excess of material passingv to the rotor is returned to the cylinder or opening above the rotor through the clearance opening 13. This pre vents, clogging and is of particular merit in thehandling of cement, lime or. other heav materials which have a tendency to pack. Iii also greatly, reduces the likelihood of the machine becoming clogged in the event of continued operation with either of the feeding valves closed. I, however, provide a cutoff valve 35 the purpose of which is to cut offthe hopper when it is desired to clear the rotor for repair purposes and the like, orto remove the rotor cylinder should occasion require.

The material iscontrolled by a weighing,- mechanism which in the structure illustrated comprises a scale beam 36 pivoted at 37, see

Figs. IV and V. The scale beam is provided with :a weight 38 and with an auxiliary scale bar 39 having an adjustable weight 40 for accuracyin adjustment. Suspended from the scale beam is a platform can ing frame 41. The mounting for this plat orm ,carry- 'ing frame will be hereinafter described.

in Fig. I to discharge the bag. The scale beam also carries the spout carrier 47 which has hangers 48' and 49 engaging the arms of the scale beam 36, the scale beam being forked at its inner end.

The platform frame yoke41 is pivoted at 50 on the carrier 47 thus being indirectly mounted on the scale beam. This carrier has a counterweight 51 disposed above its pivot. This counterweight is provided with a stop member 52 which is pivoted at 53 and provided with downwardly projecting stops 54. An adjustable support 55 is provided forthe outer or swinging end of the stop member. The weight has a .pair of pins 56 which coact with the stop member, the stop member having a central recess 57 adapted to alternately receive these pins. The pin engaging the recess 57 serves as a positive means for holding the parts in position at each end of the stroke thereof until released by the actuation of the scale beam. The carrier is thereby lowered until the stop member engages the rest 55, the pin 56' moving out of engagement with the slot allowing the carrier to swing.

The carrier, is provided with a pair of spouts 58 pivoted at 59-and projecting for- 62 adapted to engage the tripping lugs 63 as the carrier moves downwardly with the scale beam, the spouts being provided with keepers 64 with which the latches engage, see Fig. VI. The tripping lugs 63 are secured for vertical adjustment and are slotted at 65, attaching screws 66 engaging these slots.

When the latches are disengaged on the initial downward movement of the scale carried. The bag holders 68 have rearward ly projecting arms 71 with cams 72 thereon which engage the tripping'pins 73 as the spout swings forwardly upon being released, thereby disengaging'the bag holders with a rearward swinging movement and the bag holders swing forwardly to engage the bags. The outward movement of the bags upon the spouts only serves to cause the bag holders to gr p more firmly. To in ure the releasing of the bag holders I provide springs 67 which yieldingly urge the cam arm 71 against the trip pin 73.

in the embodiment illustrate being accomplished as follows The carrier is provided with an upwardly 7 facing yoke 74 having seats 75 at the ends thereof to receive the roller 7 6 on the actuating lever 77, which is pivotally mounted at 78 and provided with an arm 79 connected by the link 80 to an arm 81 on the rockshaft 82 which, in the structure illustrated, is disposed through an opening 83 through the hopper neck 3, see Fig. VI. The rockshaft 82 has an arm 84 thereon to which the actuating pitman 85 is connected. This pitman is actuated by a cam 86 secured to the gear 87, the lower end of the pitman being held in position by the pin 88 engaging the slot 89. The gear 87 is mounted on the shaft 90. The slot 89 is formed in the head 91 on the end of the pitman with which the cam 86 coacts. The gear 87 is driven from the gear 92 on the shaft 93.

The gear 87 on the shaft is connected to the main driving shaft 94 by means of the gear 95 on the shaft 93 coacting with the pinion 96 on the shaft 94. This shaft 94 is provided with the driving pulley 97.

The rotor shaft 32 is connected to the driv-; ing shaft 94 by the beveled gears 98, see

Fig. VIII.

l The gear 92 is intermittently driven,'it being rotatable on the shaft 93 and driven from the ratchet 99 which is secured to the shaft, the pawl 100 coacting with the ratchet being pivotally mounted at 101-on the cam 102. The cam is provided with a sleeve 103 connected to, the gear. I The driving pawl is controlled by a trip- 104 onthe lever 105 which is pivoted at 106 and pivotallyconnected at 107 to'the rear side of the ,rear

wall 46 of the scale platform. The downward movement of the scale platform releases the pawl 100, allowing it to engage the driving ratchet 99 thereby driving the gear 92 until the pawl again engages the trip 104.

To insure a complete actuation the lever 105' is provided with an arm 108 which is.

engaged by the cam 102, thereby moving the lever 105 a complete stroke at each operation. The actuation of the gear 87 through the connections described swings the actuating lever 77, thereby actuating the carrier, which, however, is held in its actuated position by the stop member 52 until the scale beam is lowered sufficiently to disengagethe stop pin 56 from the recess 57 of the stop member. The carrier is thus positively actuated,

ios

' ing operation and to open it when the parts have completed .the cycle, bringing the second spout to filling position, I provide I per by any suitable means.

a cam 109 which has a pawl carrying arm 110. secured thereto, the pawl 111 being pivoted at 112 on the arm to coact with the driving ratchet 113 which is secured to the shaft.

The control lever 105 has an arm 114 with "a trip 115 thereon adaptedto coact with the pawl, the pawl being released on the downward movement of the scale beam to close the valve. The trip 115 is returned to pawl releasing position when the scale beam swings upwardly to initial position. The cam 109 has a lift 116 with a sharp face so that on the initial movement of the cam the arm117 pivoted at 118 and carrying the link 119 is permittedto fall. This link is connected to the valve actuating lever 120. Positive action of the valve is insured by the spring 121. a

To prevent overthrow of the parts the cam 109 is providedwith a friction brake 122 which coacts with the hub 123 on the cam. A similar brake 125 is provided for the, gear 92. The friction of these brakes is such that the parts arestopped as soon as the driving pawls are released.

With the parts thus arranged the operation of my improved filling machine is as follows: The material is supplied to the hop- With a bag in position on the spout 58, which is in operative position, the machine is started and the material delivered by the ejector until sufiicient weight is delivered to the bag to actuate the scale, the downward movement of the scale bringing the latch arm 62 into engagement with the trip 63, releasing the -"spout so that it may tilt forwardly. This Cal forward tilting movement releases the bag holder as has been described.

This, however, does not take place until after the carrier stop mechanism has been disengaged, as described, by the downward movement of the carrier.- Further, thedownward movement of the platform actu 'ates the control lever 105 disengaging the driving pawls for the carrier shifting mechanism', as described, and for closing the feed valve. I

stroke so that the carrier shifting mechanism The control lever is actuated a full is'free to operate. i 4 L,

As soon as the downward stroke is oompleted the parts are returned to theirinitial position by the weight of the scale-beam, and during this return inovementthe yoke on the carrier is brought into engagement with the shifting lever which is swung to its opposite position, thereby swinging the carrier. As the carrier moves upwardly, the

A es

stops on-the counterweight engage with the stop member securely holdingthe parts in position until again released by the downward movement occasioned by the load of the filled bag.

In the modification shown in Fig. XVI the ejector cylinder 126 is provided with two discharge ports 127 disposed in opposed relation so that a filling unit maybe operated on each side of the machine. Otherwise, the parts are substantially as described. My improved filling machine is of very large capacity, is automatic in its operation, the operator being merely required to place the bags upon the spouts, andit is not likely to become clogged. The hand operated valve 16 is provided as an emergency valve in the event that some partof the machine becomes broken or dut of order, and, as stated, the

cut-oif valve 35 is provided to permit repairs of the rotor or the removal of the rotor cylinder.

While the embodiment illustrated is especially designed for the handling of cement,

lime and like heavy materials, my improvements are very readily adapted for the handling of various other materials. I have not attempted to illustrate or describe various modifications and adaptations which I contemplate as I believe the disclosure made will enable those skilled in the art to embody or adapt the same as may be desired.

Having thus described, my invention, what I claim as new and desiire to secure by Letters Patent is:

1. In a structurep the class described, the

combination of a eed means including a feed valve, a cam for actuating said valve, a. weighing mechanism including a scale beam, a platform operatively associated with said scale beam, 8. carrier pivotally mounted on movement, a yoke on the upper end of'sai carrier having seats on opposite sides of the carrier pivot, a. pivotally mounted actuatin lever coact-ing with said yoke toactuate sai carrier as the lever is actuated and to hold it in its actuated position when saidscale beam is' in its initial position, an actuating said'scale beam for vertical and oscillating cam for said lever, a rock shaft rovided -vided with pawls coacting with said driving ratchets, a pivotally mounted trip lever operatively connected to said platform and provided with tripping tappets coacting with said pawls, a cam operatively associated wit ,one of said driven members 00- acting with said grip le verto insure complete actuation of he mechanism, a counterweight on said actuating lever, 21.

, tpilirotally mounted stop member provided wi tral stop recess and a pair of spaced stops, stop pins on said counterweight adapted to alternately engage with said stop recess and with said sto s on said stop member, said stop member eing provided with a support for its swinging end and whereby the stop pins remain in engagement with the stop recess during the lnitial downward movement of the scale beam, and spouts pivotally mounted on said carrier to be alternately brought into operative relation with said feed means. i

2. In a structure of the classdescribed, the combination of a feed means including a feed valve, a cam for actuating said valve, a weighing mechanism including a scale beam, a platform operatively associated with said scale beam, a carrier pivotally mounted on said scale beam for vertical and oscillating movement, a yoke on the upper end of said carrier having seats on opposite sides of the carrierpivot, a pivotally mounted actuating lever coacting with said yoke to actuate said carrier as the lever is actuated. and to hold it in its actuated position when said scale beam is in its initial position, an actuating cam for said lever, a rock shaft provided with an arm operatively connected to said actuating lever, a pitman operatively associated with said control cam, said rock shaft having a second arm to which said pitman is connected, a pair of driving ratchets, driven members operatively connected to said valve and lever actuating camsand provided with pawls coacting with said driving ratchets, a pivotally mounted trip lever operatively connected to said platform and provided with tripping tappets coacting with said pawls, and a cam operatively associated with one of said driven members plcte actuation of the mechanism.

l 3. In a structure of the class described,

the combination of aweighing mechanism including a scale beam, a platform operatively associated with said scale beam, a carrier' pivotally mounted 'on said scale beam for vertical and oscillating movement, a yoke on the upper end'of said carrier having seats oh the opposite side of the carrier pivot, a pivotally mounted actuating lever coacting with said yoke to actuate said carrier as the'le'ver is actuated and to hold it in its actuated position when said scale beam is in its initial position, means for actuating said lever comprising an actuating cam, a driving ratchet, a drivenmember operatively connected to said lever actuating cam and provided with a pawl coacting with said driving ratchet, a pivotally mounted trip leverope-ratively connected to said platform and provided with a tripping tappet coact ing with said pawl, a cam operatively associated with said driving ratchet'coacting with said trip lever to insure complete acassociated withjsaid driving ratc tuation of the mechanism, a pivotally mounted stop member provided with a central stop recess and a pair of spaced stops, stop pins on said actuating lever adapted to alternately engage with. said stop recess and with said stops on said stop member, said stop member being provided with a support for its swinging end whereby the stop pins 4. In a structure of the class described,

the combination of a weighing mechanism including a scale beam, a platform operatively associated with sa1d scale beam, a carrier pivotally mounted on said scale beam in its actuated position when said scale beam is in its initial position, means for actuating said lever comprising an actuating cam, a driving ratchet, a driven member operatively connected to said lever actuating cam and provided with a pawl coacting with said driving ratchet, a pivotally mounted trip lever operatively connected to said platform and provided with a tripping tappet coacting with said pawl, and a cam operatively et coacting with said trip lever to insure complete actuation of the mechanism.

5. In a structure of the class described, the combination of a feed means including a feed valve, a cam for actuating said valve, a weighing mechanism including a scale beam," a platform operatively associated with said scale beam, a carrier pivotally mounted on said scale beam for vertical and oscillating movement, means for oscillating said carrier comprising a cam, driving ratchets, driven members operatively connected to said valve and carrier actuating cams,

pawls mounted on said driven members'to coact with said driving ratchets, a pivoted trip lever connected to said platform and provided with pawl disengagingtappets, and spouts mounted on said carrier to be alternately brought into operative relation with saidfeed means.

6. In a structure of the class described, the

combination of a weighing mechanism including a scale beam, a platform operatively associated with said scale beam, a carrier pivotally mounted on said scale beam for vertical and oscillating movement, means for oscillating said carrier comprising a driven member, a driving ratchet, a pawl mounted on said driven member to coact with said driving ratchet, a pivoted trip lever operatively connected to said platform and provided with a pawl disengaging tappet, a friction brake operatively associated with said driven member for preventing theoverthrow thereof, and spouts mounted on said carrier to be alternately brought into operative relation with said feed means.

7. In a structure of the class described, the combination of a weighing mechanism including a scale beam and platform, a carrier operatively associated with said scale beam for vertical and oscillating movement, means for oscillating said carrier comprising a driven member, a driving ratchet, a pawl mounted on said driven member to coact with said driving ratchet, a pivoted trip lever connected to said platform and provided with a pawl disengaging tappet, and

spouts mounted on said carrier to be alternately brought into operative relation with said feed means. I

8. In a structure of the class described, the combination of a feed means including-a feed valve, a valve actuating cam, a weighing mechanism including a scale beam, a carrier pivotally mounted on said scale beam for vertical and oscillating movement, means for oscillating and holdingsaid carrier in 'its actuated position controlled by the movement of said scale beam, spouts mounted on said carrier to be alternately brought lnto operative relation with said feed means, a

driving ratchet, a driven member, a pawl mounted on said driven member to coact with said driving ratchet, a triplever pro vided with a' pawl disengaging tappet and operatively associated with said scale beam,

and a friction brake operatively associated" with said valvecam for preventing the overthrow thereof.

9. In a structure of the class described,

vided with a pawl disengaging tappet and operatively associated with said scale beam.

10. In a structure of the class described, the combination of a feed means including a feed valve,a cam for actuating said valve, a weighing mechanism including a scale beam, a platform operatively associated with-said scale beam, a driving ratchet, a driven member operatively connected to said valve actuating cam and provided with a pawl coacting with said driving ratchet, a pivotally mounted trip lever operatively connected to said platform and provided with a.tripping tappet coactingwith said pawl, and a friction brake operatively associated with said valve actuating cam for preventing the overe throw thereof.

11. In a structure of the class described,

the combination of a feed means including a feed valve, a cam for actuating said valve, a weighing mechanism lncluding a scale beam,

a platform operatively associated with said scale beam, a driving ratchet, a driven member operatively connected to said valve actuating cam and provided with a pawl coacting with said driving ratchet, and a pivotally ping tappet coacting with said pawl.

12. In a structure of the class described, the combination of a feed means including afeed valve, a valve actuating cam, a weigh in}; mechanism, a driving ratchet, a driven member operatively associated with said valve actuating cam, a pawl mounted on said driven member to coact with said driving mounted trip leveroperatively connected to said platform and provided with a tripratchet, a pivoted trip-lever provided with a pawl disengaging 'tappet and operatively associated with said scale beam, and a fric valve actuating cam forpreventing the overthrow thereof. I

:13. In astructure of the class described, the combination of a feed means including a feed valve, a valve actuating cam, a weighing mechanism, a driving ratchet, a driven member operatively associated with said valve actuating cam, a pawl mounted on said driven member. to coact with said driving "ratchet, and a" pivoted trip lever provided with a pawl disengaging tappet and operatively associated with said scale beam.

14. In a structure of the. class described, the combination of a feed means including a feed valve, a weighing mechanism including a scale beam, a carrier pivotally mounted on said' scale beam for vertical and oscillating movement, means for actuating said carrier controlled by the movement of said scale beam, spouts mounted'on said carrier to be alternately brought into operative relation with said feed means, and means for quickly closing said valve controlled by saidscale beam. t,

15. In a structure of the class described, the combination of a feed means'including a feed valve, a cam for actuating said valve, a weighing mechanism including a scale beam, a carrier pivotally mounted on said scale beam for vertical and oscillating movement, a' yoke on the upper end of said carrier 'tion brake operatively associated with said having seats on opposite {sides of said carrier pivot, a pivotally mounted indicating lever *coacting with said yoke to actuate said carrier as the lever is actuated and to hold it in "its actuated position when said scale beam is in its initial position, an actuating cam for said actuating lever, a control cam operat-ively associated with said weighing mechanism to insure the full stroke thereof and operatively connected to said valve actuating and lever actuating cams, a driving and control means for said control cam operatively associated with said weighing mechanism, spouts mounted onsaid carrier to be alternately brought into operative relation with said feed means, an arm on said carrier projecting above its pivot, a counterweight on said 'arm, a pivotally mounted stop bar, stops on said counterweight coacting with said stop bar, and a rest for the swinging end of said stop bar, said stopsbeing disengaged by the downward movement of the scale beam.

16. In a structure of the class described, the combination of a feed means, a weighing mechanism including a scale beam, a carrier pivotally mounted on said scale beam for vertical and oscillating movement, a yoke on the upper end of said carrier having seats on opposite sides of the carrier pivot, a pivotally mounted actuating lever coacting with said yoke, means for actuating said lever, an upwardly projecting arm on said lever provided with a pair of stop pins, a pivotally mounted stop member provided with a pair of spaced stops coacting w-ithsaid pins and a central stop recess adapted to be alternately engagedby said pins, said stop member being provided with a support for its swinging end and whereby the stop pin 1s disengaged from said recess during the initial downward movement of the scale beam, and spouts mounted on said carrier to be alternately brought into cooperative relation with said feed means.

17 In a structure of the class described, the combination of a feed means including a feed valve, a cam for actuating said valve,

a weighing mechanism including a scale beam, a carrier pivotally mounted on said scale beam for vertical and oscillating movement, a yoke on the upper end of said carrier having seats on opposite sides of said carrier pivot, a pivotally mounted actuating lever coacting with said yoke to actuate said carrier as the lever is actuated and to hold it in its actuated position when said scale beam is in its initial position, an actuating cam for said actuating lever, a control cam operatively' associated with said weighing mechanism toinsure the full stroke thereof and operatively associated with said Valve actuating cam and said lever actuating cam, a driving and control means for said control cam operati'vely associated with said weighing mechanism, and spouts mounted on said carrier'tobe alternately brought into operative relation with said feed means.

18.111 a structure of the class described, the combination of a weighing mechanism including a scale beam, a carrier pivotally mounted on said scale beam for vertical and oscillating movementya yoke on the upper end of said carrier having seats on opposite sides of said carrier pivot, an actuating lever coacting with said yoke to actuate said carrier as the lever is actuated and to hold it in its actuated position when said scale beani is in its initial position, an actuating cam for said actuating lever, a control cam operatively associated with said weighing mechanism to insure the full stroke thereof and operatively connected to said lever actuating cam, a driving and control means for said control cam operatively associated with said weighing mechanism, spouts mounted on said carrier to be alternately brought into operative relation with said feed means, an arm on said carrier projecting above-its pivot, a counterweight on said arm, apivotally mounted stop ,bar, stops on said counterweight coacting with said stop bar, and a rest for the swinging end of said stop bar, said stops being disengaged by the downward movement of the scale beam.

19. In a structure of the class described, the combination of a weighing mechanism including a scale beam, a carrier pivotally mounted on said scale beam for vertical and oscillating movement, a yoke on the upper end of said carrier having seats on opposite sides of said carrier pivot, an actuating lever coacting with said yoke to actuate said carrier as the'lever is actuated and to hold it in its actuated position when said scale beam is in its initial position, an actuating cam for said actuating lever, a control cam lCO operatively associated with said weighing mechanism to insure the full stroke thereof and operatively connected to said lover actuating'cam, a driving and control means for said control cam operatively associated with said weighing mechanism, and spouts mounted on said carrier to be alternately brought into operative relz'ttion with said feed means.

20. In a structure of the class described, the combination of a feed means including a feed valve, a weighing mechanism, a carrier mounted on said Weighing mechanism for vertical I spouts mounted on said carrier to be alternately brought into operative relation with said feed means, a yoke on the upper end of said carrier having seats on the opposite sides of the carrier pivot, a pivotally mounted actuating lever coacting with said yoke to actuate said carrier as the lever is actuated and to hold it in its actuated positions when the weighing mechanism is in its initial position, a driving means, operating connections therefor to said lever, operating connectionsfor said driving means to said feed valve, and a control means for said driving means including a member operaand oscillating movement,

tively associated with said weighing meching mechanism, a carrier mounted onsaid' weighing mechanism for vertical and oscillating movement, spouts mounted on said cairier'to be alternately brought into operative relation with said' feed means, a yoke on the upper end of said carrier having seats on the opposite sides of the carrier pivot, a pivotally mounted actuating lever coacting with said yoke to actuate said carrier as the lever is actuated and to hold it in its actuated positions when the weighing mechanism is in its initial position, a driving means, operating connections therefor to said lever, and a control means for said driving means including a member operatively associated with said weighing mechanism.

22. In a structure of the class described, the Combinationof a feed means including a feed valve, a weighing. mechanism, a carrier mounted on said weighing mechanism for vertical and oscillating movement, spouts mounted on said carrier to be alter nately brought into operative relation to said feed means, a yoke on the upper end of said carrier having'seats on opposite sides of the carrier pivot, a pivotally mounted actuating lever coacting with said yoke, an actuating cam operatively connected to said lever, a driving means operatively connected to said cam, means for closing said valve operatively;connected to said driving means, and a control means for said driving means operatively associated with said weighing mechanism.

23. In a structure of the class described, the combination of a feed means, a weighing mechanism, a carrier mounted on said -weighing mechanism for vertical and oscillatingmovement, spouts mountedon sa d carrier to be alternately brought into operative relation to said feed means, a yoke on the upper end of said carrier having seats on opposite sides of the carrier pivot, a pivotally mounted actuating lever coactingl with said, yoke, an actuating cam operatively connected to said lever, driving means op eratively connected to said cam, and a control means for said'driving means operatively associated with said weighing mechanism.

24. In a structure of the class described, thecombination of a feed means including a feed valve, a weighing mechanism. a carrier mounted on said weigh ng mechanism for vertical and oscillating movements, means for automatically oscillating said carrier, spouts mounted on said carrier to be alternately brought into operative relation to said feed'means, a valve actuating means, and a control means for said carrier OSClllating means and feed valve actuating means operatively associated with said weighing mechanism. y

25. In a structure of the class described, the combination of a feed means, a weighing mechanism, a carrier mounted on said we ghing'mechanism for vertical and oscillating movements, means for automatically oscillating said carrier,=spouts mounted on said carrier to be alternately brought into operative relation to said feed means, and a control means for said carrier oscillating means operatively associated with said weighing mechanism.

26. In a structure of the class described. the combination of a feed means including a feed valve, a weighing mechanism, a carrier mounted on said weighing mechanism for vertical and oscillating movement, spouts mounted on said carrier to be alternately brought into operative relation with said feed means, means for oscillating said carrier including a driving means, operating connections for said driving means to said feed valve, and a control means for said driving means including the member operatively associated with said weighing mechanism.

27. In a structure of the class described, the combination of a feed means, a weighing mechanism a carrier mounted on said weighing mechanism for vertical and oscillating movement, spouts mounted on said carrier: to

-be alternately brought into operative relation with said feed means, means for oscillatmg said carrier including a driving means, and a control means for said driving -means including the member operatively as- SOCltltQd with said weighing mechanism.

28. In a structure of the class described, the combination of a feed means including a: valve, a weighing mechanism, an adjustably mounted delivery member provided with a plurality of spouts adaptedto be successively brought into operative relation with said feed means, means for automatical- 1y adjusting said delivery member, a: driving means therefor, operating connections for said driving means to said feed valve, and a control means for said driving means op eratively 'associated with said weighing mechanism whereby said valve and delivery member are automatically actuated upon the actuation of the weighing mechanism.

29. In a'. structure of the class described, the combination of 'a feed means, a weighing-mechanism, a carrier mounted on said weighing mechanism for vertical and oscillating movement, spouts mounted on said carrier to be alternately brought into opera tive relation withsaid feed means, means for holding said carrier in position when the weighing mechanism is at its initial position adapted to be released on the initial downward movement f said weighing media nism, means for oscillating said carrier including a driving means, means for controlling said carrier oseillatin means operatively connected to the weig ing mechanism to be actuated on the down stroke the weighing mechanism to be actuated on the down stroke thereof, means for compelling a complete stroke of the weighing mechanism including a! driving member, and a control means for such driving member operatively associated with said weighing mechanism.

31. In a structure of the class described, the combination of a feed means, a weighin mechanism, a carrier mounted on said welghing mechanism for vertical and oscillating movement, spouts mounted on said carrier to be alternately brought into operative relationwith said feed means, means for holding said carrier in position when the weighing mechanism is at its initial position adapted to be released on the mitial downward movement of said wei hing mechanism, means for oscillating sai carrier including a driving means, and means for controlling said earner oscillating means operatively connected to the weighing mechanism to beactuated on the down stroke thereof.

,a carrier mounted on said weighing mechanism for oscillating movement, spouts mounted on said carrier 'to'b'e alternately brought into feeding position, means for oscillating said carrier including a' driven member and driving connections for said driven member to said carrier oscillating means controlled by the actuations of said weighing mechanism, and means for holding said carrier in feeding position when the scale beam is in its initial position adapted to be released on the initial downward movement of said weighing mechanism.

34. In a structure of the class described, the con'ibination of a weighing mechanism, a carrier mounted on said weighing mechanism for oscillating I movement, spouts mounted on said carrier to be alternately brought into feeding position and means for oscillating said carrier including a driven member and driving connections for said driven member to said carrier oscillating means controlled by the aetuations of said weighing mechanism.

35. In a structure of the class described, the combination of a feed means, a weighing mechanism, an adjustably mounted delivery member provided with a plurality of spouts adapted to be successively brought into operative relation with said feed means, means for automatically adjusting said delivery. membe'r, a driving means therefor, and a control means for said driving means operatively associated with said weighing mechanism whereby said delivery member is automatically actuated upon the actuation of the weighing mechanism.

36. In-a structure of the class described, the combination of a weighing mechanism feedmeans, a spout carrier provided with a plurality of spouts adjustably associated with said feed means, and means for automatically adjusting said carrier operatively associated with said weighing mechanism to be actuated upon the actuation of said weighing mechanism.

37 In a structure of the class described, the combination of feed means, a weighing mechanism, a spout carrier mounted on said weighin mechanism, a spout pivotalliy mounte on said carrier, a latch for hol ing said spout in its erected position adapted to be disengaged on the downward move ment of the carrier, a pivoted bag holder coacting with said spout and having a cam arm, a member with which said cam arm engages on the downward movement of said spout whereby the ba holder 15 disengaged, and a return spring or said spent.

38. In a structure of the class described, the combination of feed means, a weighing mechanism, a spout carrier mounted on said weighing mechanism, a spout fpivotall mounted on said carrier, a latch ing said s out in its erected position adapted to be disengaged on the downward movement of the carrier, and a return spring for said spout.

In witness whereof I have hereunto set my hand.

LEWIS D. NELSON.

or hol

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