US1660109A - Weighing mechanism - Google Patents

Description

Feb. 21, 1928, 1,660,109

P. S. WARD WEIGHING MECHANISM Filed June 20. 1924 4 Sheets-Sheet l I 1 g l I1 g 4E Feb. 21, 1928. 1,660,109

P. s. WARD WEIGHING MECHANISM Filed June 20. 1924 4 Sheets-Sheet 2 IN VEN TOR Feb. 21, 1928.

P. s. WARD WEIGHING MECHANISM Filed June 20. 1924 4 Sheets-Sheet 3 MEQ Patented Feb. 21, 1928.

UNITED STATES PATENT OFFICE.

PAUL S. WARD, OF CINCINNATI, OHIO, ASSIGNOR TO THE TRIUMPH MANUFACTURING COMPANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO.

WEIGHING MECHANISM.

Application filed June 20,

I have exemplified my invention as applied to, bakers use in connection with mechanism for providing a charge of flour properly sifted and weighed and ready to be charged into the receptacle in which it is to be utilized, which may for instance be the container of a dough mixing machine.

It is the object of my invention to provide new and improved means whereby to weigh the material, exemplified as flour, while being received in a container, and ncw'and improved means whereby when the desired weight of material has been received in the container, the feeding of the material is antomatically stopped in novel manner; further, to provide novel means for advancing the material toward a container in which the same is wei 'hed, and to provide novel operating means for said devices, and novel means whereby the operation of the same is automatically interrupted; and, further, to provide novel means for controlling the operation of said devices.

It is the object of my invention. further, to provide an electrically operated control member arranged to be placed in inte .fering relation with a movable member deriving its power from the power of the machine, whereby the. power of the machine is eiiective to perform the function ofintcrruption in the advancing or feeding movement of the material, and whereby the control forsuch last--' named means is normally free of connection with said powerv means.

The invention will be further readily understood from the following description and claims, and from the drawings, in which latter:

Fig. 1 is a plan view of a flour charging mechanism. exemplifying my improved departly broken away for better illus tration of parts.

Fig. 2 is a side elevation of the same, partly broken away.

3 is an end elevation of the same.

Fig. 4: is an enlarged detail view of the driving means.

Fig. 5 is a detail line 5-5 of Fig.

Fig. 6 is a vertical cross-section showing a detail of the shifting means for affecting power transmission. taken on the line 6-6 of Fig. 1.

7 s a vertical section of my improved in section, taken on the 1924. Serial No. 721,317.

device, partly broken away taken on the line 77 of Fig. 2..

Fig. 8 is a vertical cross-section of the elevating mechanism for the flour, taken on the line 88 of Fig. 2.

Fig. 9 is a vertical cross-section, taken on the line 9+9 of Fig. 2, showing the flour bin, and stirrer and co veyor mechanism in the same.

Fig. 10 is an enlarged front view of the scales and control means therefor.

Fig. 11 is a cross-section, taken on the line 1111 1, showing the power control shifting means.

Fig. 12 is a vertical cross-section of the scales and control means therefor, taken on the line 12-l2 of Fig. 10.

Fig. 13 is an axial section of a detail of the scales. taken on the line 1313 of Fig. 10.

Fig. 14 is a vertical section, taken on the line 14; justment.

Fig. 15 is a vertical section of a detail of the automatic weighing switch, taken on the line 1515 of Fig. 12.

Fi 16 is a cross-section, taken on the line 1616 of Fig. 15, showing the pivotof the same.

Fig. 17 is a front elevation'of the scales, with the dial-plates removed.

Fig. 18 is an inside elevational detail of the hopper support at the weighing side of the hopper. partly in vertical section. taken on the line 18-18 of Fig. 7, partly broken away.

Fig. 19 is a similar view of the supporting means the other side of the hopper, taken on the line 19-19 of Fig. 7

Fig. 20 is an axial section of a detail, showing the releasable driving connection, taken on the line 2020 of Fig. 3.

Fig. 21 is an enlarged detail in front elevation, partly in section on the line 21 21 of Fig. 11, showing the power controlling pin in position for power transmission.

Fig. 22 is a similar view, showing the pin movedfor power release.

Fig. 23 is a cross-section otthe electromagnet, taken on the line 2323 of Fig. 11; and,

Fig. 2a is adiagram view of the electric circuitand partial circuits.

The flour to be used in the baking is contained in a suitable storage compartment,

141- of Fig. 13, showing the finger ad- Y shaft has a conveyoi1-screw 74 fixed thereto,

exemplified as a flour-bin 31, which is provided with suitable agitator blades on a shaft 33 journaled in the bin, and provided with a sprocket-wheel 3%,. A sprocket-chain 35 passes about said sprocket-wheel and a sprocket-wheel 36 on a sliaft 39, journaled in bearings in the frame of the bin. A conveyor screw -10 is fixed to the shaft 30 and operates in a trough 41 in the'bottoiii of the bin for conveying the flour in the bin through an opening 42 in the end of the bin, and a chute 43 communicatingtherewith, into the'bottom of an elevator A l. (See Figs. 2 and 9.) Y V The shaft 39 is exemplified as a driven shaft, so that when rotation of said shaft ceases, the feeding of flour from the bin to the elevator will also cease. 39 mayhave' an extension shaft 15 in the bottom of the elevator. The shaft i5 is journaled-in bearings 46 in the elevator casing. A coupling 47 connects the shafts '30 and 45." g

.The elevator is exemplified as comprising a casing 51, in which a sprocket-chain having. conveyor-buckets 53 thereon, is arranged to operate. The sprocket-chain is received about a sprocket wheel 54: fixed to the shaft 45, and about a'sprocket-wheel fixed to a shaft 56, journaled in bearings 57 in end-plates 58 fixed to the casing, and receiving rotation in manner to be presently described. The elevator casing is provided with'a door 59.. (See Figs. 2, 8 and 20.)

The conveyor-buckets are arranged to discharge into a trough 61 in the casing. The trough is continued as a conveyor-pipe 62, whichextends laterally from the casing so as to communicate with a flour sifter 63, the 'pipe being supported inffianges 64, 65. respectively, on one of the end-plates'and on the body'of the sifter." The sifter is rigidly suspended by hangers 68 from a board 69. A shaft 71 is located in the trough and conveyor-pipe, and isexeinplified as joui'naledin a bearing 72 in the outer end plate58 and in a bearings73 on the outer wall of the bodyof' the floursifter. The

for conveying the flour discharged into said trough into the Sifter. V

The sifter comprises a Wall 77 in which there is a sieve 78. (See Figs. 2 and 7.)

The shaft 71 has agitatorarms 79 and agitator blades 80 fixed thereto, for stirring the flour and moving the same across the inner face ofthe'sieve 78, 'so' as to sift the flour through said sieve as long as said agitation continues, the sifting of the fiour' ceasing when said agitator blades cease rotating. 7

A charging receptacle, exemplified as a hopper 81 is arranged to receive the'flour from said sifter, through a flexible conduit 82, whichmay be a fabric tube, preferably accordion-pleated, having its respective ends The shaft fixed to the flange 83 of the sifter anda flange 84 ofa cover 85 of the hopper, which cover may be removable. -This tube is of light material and readily adapts itself to the positions of the hopper without afi'ectingthe weightrcadings of the contents of the hopper.

The hopper is provided with slanting walls 86, for directing the contents thereof to a'discharge opening 87 in the bottom of the hopper, which is normally closed by a gate 88, slidable in guideways 89 and on rollers 90 in the mouth of the hopper. Figs. 2, 3 and 7.) The opening of the gate will cau-se the charge of flour in the hopper to be'discharged' at the desirable point. The

hopperis exemplified as discharging into a dough-mixingmachine 91. For convenience of directing the charge into the dough-mixing machine, the bottom of the hopper has See a flexible conduit 92 fixed thereto, as about the flange 93 of the mouth of the hopper, the bottom of the conduit being received in the mouth 9% of the cover 95 of the doughmixing machine, 7

The dough-mixing machine may comprise a. shaft 101, journaled in bearings102, 103, of the frame 104, and having thereon mixer-- wings 105. (See Figs. 2 and 7.) r A driveshaft 106 is journaled in bearings 107 on said frame and a bearing 108 of a bracket 109, andhas a pinion 110 fixed thereon,

which meshes with a gear 111 fixed to theshaft 106 with a pulley 116; a belt 117 being received abouti-said pulley and about a pulley 118'on a shaft119. The shaft 110 is journaled in'a bearing 120 on a bracket 121 extending from the conveyor-pipe 62, and in bearings 122, 123, on the end-plates 58 of the elevator casing. (See Figs. 2 and 20.)

A clutch 131 is arranged to transmit'rotation or cause cessation of such transmission to the conveyor mechanisms, including the conveyors in the bin, in the elevator. and

in the troughand pipe, as well'as the agi-' tatingineans in the sift-er. I (See Figs. 1 and 20.) This clutch is shown as a cup friction clutch, comprising a cupanember 132, in

which the shaft rotates loosely, the same being held in endwise relation on said shaft between the bearing 123 and a collar 133 secured to said shaft. A cone-member 136 of'said clutch, shown as the movable member of the clutch, is arranged to rotate wit-h said ha t a d to ha ax al movement th reon,

lVhen the clutch 131 is in engagement,

power is transmitted from the shaft 119 to r the sprocket-wheels 1445, 1 15, for operating said conveyor mechanisms and agitators. and when said clutch is released, theoperations of said conveyor mechanisms, which include the agitators, cease,'tor causing cessation of feed of flour into the hopper, such clutch release being effected when the desired weight of flour has been fed into the hopper.

The weight of the n'iaterial, exemplified as flour, in the receptacle, instanced as the hoppen is indicated on scales 151, the hopper beingyieldingly mounted with relation to said scales so as to indicate the-movements of the hopper induced by weight therein upon the scales. Thus hanger rods 152, 1-53, are fixed to a suitable support, as to the board 60, fixedto the ceilingof the room. A tube is fixed to the rod 152, as by means 01 set-bolts 155, and a tube 156 is fixed to the hanger-rod 153, as by means of set-bolts 157. The respective tubes have lugs 158, 159, extending therefrom, provided with sockets 160, 161.

Scale levers 162, 163, have knife-edge lugs 161-, 165, fixed thereto, which rest on the.

(See Figs.

bottoms of the sockets 160, 161. 18 and 10.)

The hopper is provided with a steadying: means to prevent undue vibration thereoi, shown as a link 167 at each side ot'the hopper. articulated with a bracket 168 at 169 and with the hanger tube at 170, the brackets being secured to the hopper. and a.)

The hopper is-provided with a tube 171. which extends therethroue h at its middle. A rod 172 extends through said tube and is (See F1 gs. 2

spaced therefrom throughout its length. ex- 7 cent that at its respective endsit is provided with knife- edge blocks 173, 11 1, on which the tube rests.

(See Figs. 1, 2, 3, 1

The rod isconnected at its respective ends with the levers162,l63. the

extending therefrom, on which counter-bad ance weights 177, 178, are adjustal'ilv threaded, nuts 1T9, 180, clamping the counterbalance weights in adjusted positions.

The scale ciinnprises membe s T81. 18:2. which have relative movement between them. The member 182 is exemplified as secured to the hanger-tube 156, as hy having an extension 183 provided with an eve 181 through which a bolt 185 is received and threaded into a bracket 186 of the hanger tube. (See Figs. 3 and The men'iher 181 is provided with an extension 184 in which there is an eye 188. it link 101 con- .nects said member 181 with the scale-lever 163, this link having a fork 192 at its lower end connected with the eve 188 by means ot a pin 193 received through holes in said tori; and said eye. The upper end of the link provided with an eve 105 in which a knifeedge lug 196 on s scale-lever is received.

Springs 201, 22. c nect with the respective members of the scales, the u of thesprings be' 1' shop ed in eyes 203 on the meu'iber 181 and the lower end of the sprii being formed as ho 204, received thioug'h ")ertures 205 in member 182. (See 1 i; 12 and Movements between the members is guided by providing a guideway 206 on the memher 182 in which a lit on the member 181 is received. The ex ension 208 in which theguideway is located, has a bar 209 tending therefrom, received in a guidewrrv 210 in the, member 181.

The scales comprises a dial-plate which is fixed to the member 181, and a dialplate 216 which adjustable with relalhm to the dial-plate 215 tor the desired weight of contents oi the hopper, and is also movable with relation to the dial-plate 215 by the weight of contents placed in the hopper, (See Figs. 10 and 12.)

A bearing-bracket 21 extends from the a l i member 181. and has rearing 222 thereon, in which a shaft 2 is journaled. This shaft has a pinion 22-1 lixed thereon which meshes with a rack 225 on the bar 200. The bearing extends through the dial-plate 215.

The shaft compris s .Tuarc part 228, over which a hub 229 received tor turning therewith. A finger 2230 has a bearing); 2 31 about the hub. a strip 23:2 being riveted to the hub. The finger comprises a pointer which registers with a dial 236 on the dial plate 215 and a pointe which registers with a dial 238 on the maisplate 216. (See Figs. 10, 12 and 13.)

A spacing block 241 is fixed to the shaft- 223, as by being threaded over the outer threaded end 212 of said shaft. and having connection with the linger and its strip by means of a screw 213.

The ting-er is, adjustable with relation to the dial to cause its pointer to register with zero on said dial, accomplished by providing the ta1l 2 l 1 of said finger with an areuate slot 245, through which the screw 2 13 passes. (See Figs. 13 and 1st.) A washer 24. 6 is received between said tail and the flange 2&7 of the spacing block 2&1 for clamping said flange, washer, tail of the inger and the strip thereunder securely together in adjusted positions. The finger is rotatable about the hub 229 sufficientlyfor such adjustment.

The spacing block is provided with a ournal 243 on which the dial-plate 216 is arranged to rotate for adpisting the same with relation to the dial-plate 215. 7 It is held in adpiste-dpositions by means of a springs washer 24.9. a clamp-washer 256 and a screw 251 threaded into the spacing-block and clamping the dial-plate 216 between the washers and a shoulder on said'bloclr.

The normal position of the dial-plate 215, is registry of its Zero mark with the pointer Referring to Fig. 10, the, dial 236 is instanced as divided into pounds, and the dial 233 is also instanced as divided into pounds, similarly to the dial 236. The dial plate'216 is provided with a contactpart1 255, shown as a pin, which is arranged to strike an arm 256, for Causing discontinuance of the feed into the hopper in manner to be presently described. v V

The dial-plate 216 is adjustably positioned with relation to the dial-plate 215 so [as to place the marking thereon representing the nrunber of pounds of weight desired to be.

placed into the hopper in registry with the pointer 237 thereon.

Referring to Fig. 10, the dial-plate 216 is set for a desired weight of sixty pounds in- .he hopper. During the time that flouris sifted into the hopper and t well as the dialplate 216 will moveclockwise as represented in Fig. 7, until the pointer 235 registers withth'e numeral on the dial-plate 215, at which moment the pin 7 255 will have engaged the arm 256 suliiciently to cause cessation of feedingv movement of flour into the hopper.

The cessation of feeding movement into the hopper in the present instance caused by release of the clutch 131. This release of p the clutch is effected by the power of the no weight ofv flour in the hopper increases, the finger as and stresses caused'by different weights de. sired in the receptacle.

In the mechanism exemplified, the shaft 71 has a tube 261 lined thereto. This tube has a cam 262 thereon, exemplified as a screw cam. The tube rotates in the direction of the arrowa in Fig. 21. A pin 263 is arranged to be 7 retracted when feeding movement of the flour into the hopper is to take place, as exem plified in Fig.21, which retracted position corresponds to an engaged relation of the clutch 131. parts, feeding movement of'the flour into the hopper takes place. When the desired weight offlour has been fed into the hopper, the retracted position of the pin ceases, and an extended relation of the pin, shown in Fig. 22, takes place, in manner to be presently described. 7 p

As soon as said extended relation oft-he pin takes place, it engages the low pointof the cam 262 at the end of the tube 261, and moves the pin lengthwise of the shaft into the position shown in Fig. 22, which occa sicns a release of the clutch and a cessation of feeding of thefiour into the hopper.

The pin 263 is in a bearing 266 in a frame 267 of a box 268, which is lined to a rod 269 by a set-bolt 270, the rod being slidable endwise in bearings 271 in the end-plates on the elevator cas ng. An arm 273 is also fixed .to'

said rod, as by a set-bolt 274;, and has a fork 275 thereon, which is received in an annular groove 276 in the movable member of the clutch. The box 263 contains 'means for automatically releasing the pin, to be presently described.

The engaged and'relcase relations of the clutch may also be controlled by an arm 278, having a handle 27 9 thereon, and having articulation 280 with the rod 269. The arm passes through an eye 282 on a hanger 283 depending-from the bracket 121. which eye serves as a pivot for said arm, for shifting the rod 269 lengthwise and shifting the clutch into engaged and into'disengaged relation. (See Figs' 1, 2 and 6.)

The means for automatically controlling the position of the pin is exemplified as an electric translating device, shown as an elec- During such relation of the.

tro-magnet 286. The electro-magnet is provided with an armature 287, hinged to the frame 288 of the electro-magnet by a pin 290, the armature forming one of the arms of a horse-shoe magnet, which also comprises a coil 291, surrounding the core 292 of the magnet. (See Figs. 11, 23 and A link 295 connects the pin 263 with said armature, being received loosely through a slot 296 in an insulating bar 297 connected to horns 298 of said armature by screws 299, and suspended therefrom by thehead 300 of said 'link and a washer 301 thereunder.

The armature further comprises horns 305 to which a strip 306 is fixed, but insulated there'tron'i. A switch-arm 367 is provided with a contact-head 308 and has a pivotlug 309 received in a pivot-slot 310 of said strip. (See Fig. 11.) A rod 311 has a head 312 received in a socket 313 of said strip. Said rod passes through aoertures in said strip and in said arm, and has a spring 314 thereabout, held thereon by a washer 31.5 and a pin 317, tor normally urging the switclnarm toward the strip 306, which latter is provided with a lug 318 for limiting movement of the switch-arm toward said strip, and maintaining the pivot-lug in its pivotslot.

The head on the switch-arm is arranged to make contact with a contact 319 fixed to a stem 320 in an insulating block 321, fixed to the frame of the automatic switch-box. A switch 322 is thereby formed, which is arranged to be automatically opened. (See Figs. 11, 23 and 24.)

lVhen this switch is automatically opened, the armature is released, and the pin 263 drops into range with the cam 262 on the tube 261, for discontinuing the feed of flour into the hopper.

A switch-box 327 is fixed to the bracket 186. (See Figs. 2, 3, 10 and 12.) It contains a normally open switch 328, comprising the contacts 329 and 330, having a gap therebetween and arranged to be contacted by a contact 331, shown as a washer t electroeconductive material, at the inner end of the stem 332 of a push-button operating in a bearing 334 of an insulating block being normally retracted by a spring 336 surrounding said stem, the spring being located between said button and said bearing.

The contact 329 is one. bracket 339 fixed to said insulating block, and has an electric conductor 340 from a suitable source of electric energy, as a public service station, connected therewith. shown in the form of a wire received about a screw 341 in a fork 342 termed on said bracket. (See Figs. 12 and The screw is arranged to clamp said wire in said fork, and also serves as an adjustable contact of an automatic switch in said switch-box. The other contact of said switch is an arm 344 pivoted on a bushing 345, (see Fig. 16), through which a screw 346 passes into said insulating block, an electric wire 347 being clamped between the head of said screw and the outer end of said bushing for conducting electricity through said bushing and said arm. The i nsulated arm 256 is fixed to said arm 344, and extends through a slot 348 in said switchbox, into the range of the pin 255. (See Figs. and 12.) A steadying spring 349 is located between the switch-bo2z and said arm for steadying said arm and preventing unnecessary vibration thereot, it being understood that the movement of said arm is very delicate.

The contact-screw 341 may be adjusted by a screwdriver passing through a hole 350 in said switch-box, so as to locate the insulated arm in proper position with relation to the pin, so that, when the numeral on the dial-plate 216, corresponding to the desired weight of flour in the hopper and the pointer registers wit-h the similar numeral on the dial-plate 215, the contact between the arm 344 and said contact-screw is released, to interrupt the current through the magnet 286, whereby the armature of said magnet drops for placing the pin 263 into range with the cam I have in Fig. 24 illustrated a desirable wiring diagram of the circuits 01' said magnet. Thus 354 represents a battery or other suitable source of electric energy.

A wire 355 connects with one of the te r minals ot the battery and with the wire 340, which connects with the automatic switch 343, from which the wire 347 extends, forming a partial circuit. The wire 355 connects with an electric conductor 356, which connects with the manual switch 328, with which a wire 357 is connected, forming a partial circuit. The wire 357 is continued and connects with one of the terminals of the coil of the electro-magnet. The wire 347 is continued and-has connection with the wire 357, and has in it the automatic switch 322 controlled by the armature of the electro-magnet. A wire 358 connects the other terminal of the coil of the electro-magnet with the other terminal of the battery.

I have in Fig. 11 shown the wire 357 secured to a binding post 359 in the insulating block 321. The wire 347 has the automatic switch 322 included therein and has electric connections with the binding posts 320 and 359 respectively. The wire 358 is shown connected to a binding post 360 in said insulating block.

The control means for controlling the interruption in -teeding movement of the material is exemplified as comprising a substant ally freely moving member. instanced as the pin 263, which is normally held in uninterrupting position by the electric translating device 286 in a normally closed electric circuit.

As soon as the desired weight of material has been received in the receptacle, the pin 255 makes contact with the arm 256 for moving the arm 344 away from the contact 341, whereby the closed circuit which maintains the interrupting member 263 in noninterrupting position, relieves the sustaining power on this member, which thereby, in the present instance, drops by gravity into interrupting position, for causing opening of the clutch 131, the opening of the clutch being, however, effected by the power mecharsm, by coaction of the driven cam 262 with said dropped pin 263.

1 It will therefore be noted, that the control means controls the position of a substantiallyfreely moving member, so that its actuationmay be most delicately controlled by the exact weightin the receptacle for which the mechanism has been set, and that the actual cessation of the feeding of the material is caused by the power mechanism, which has abundant power to definitely and instantly cause cessation of feeding of material, so that the amount of material delivered to the receptacle is always definite and exact.

In the present instance the controlled member is the pin 263, which drops by gravity immediately upon interruption of the electric circuit in the electric translating device 286, which motion is'substantially instantaneous and occurs upon practically the instant of opening the switch 34:3;

It is of course obvious that changes in construction and arrangements of parts may be made from the exemplification of means herein shown and described, without departing from the spirit of my invention as disclosed in the appended claims.

Having thus fully described my invention, what I claim as new, and desire to see cure by Letters Patent, is: v'

1. In weighing mechanism,the combination ofmaterial feeding means, interrupting means therefor comprising an actuating member'anfd a control member, power means foroperating said actuating member,means for holding said control member in inactive relation, a weighing means, and control means for said control member influenced by said weighing means for placement of said control member in coactive relation with said actuating member for actuation of said interrupting means.

2. Inweighing mechanism of the character described, the combination of a receptacle, power means, an electric translating device, a movable support therefor, power interrupting means comprising a shiftable member on said movable support, a power operated complemental cam therefor, said shiftable member operated by said electric translating device, scales having connection with saidreceptacle and comprising a movable member actuated by the weight of material in said receptacle, an automatic switch, an electric circuit including a pair of partial circuits, said electric translating device included in said electric circuit, a manual switch in one of said partial circuits, and an automatic switch in the other of said partial circuits, said automatic switch arranged to be operated by said movable member,

3. In weighing mechanism of the character described,'the combination of a receptacle, a driven member, scales having connection with said receptacle and comprisinga movable member actuated bythe weight of the material received by said receptacle, power means for actuating said driven member, power interrupting means comprising a cam and a complemental shiftable member having relative movement between them for causing power interruption in said power means, an electric translating device, said shiftable member operated by said electric translating device for placing said cam and said shiftable member in complemental relation for causing said powerinterruption,

and controlling means for said electric translating device controlled by said movable member.

4. In weighing mechanism of the character described, the combination of a recep tacle, a driven member, scales having connection with said receptacle and comprising movable member actuated by 'the'weight of the material received by said receptacle, power means for actuating said driven member, power interrupting. means comprising a cam and a complemental shiftable member having relative movement between them for causing power interruption in said power means, an electric translating device comprising an electrically controlled member having operative connection with said shiftable member for placing said shiftable member and said cam in complemental relation for causing'said power interruption, an electric circuit in which said electric translating device is included and comprising two partial circuits, a manual switch in one of said partial circuits, and an rautomatlc switch controlled by said movable member. in the other ofsaid partial circuits.

5. In weighing mechanism of the character described, the combination of'a receptacle, a driven member, scales having connection with said receptacle and comprising a movable member'actuated by the weight of the material received by said receptacle, power means for actuatingsaid drivenvinember, power interrupting means comprising a cam and a complemental shiftable member having relative movement between them for causing power interruption in said power means, an electric translating device comprising an electrically controlled member having operative connection with said shiftable member for placing said shiftable member and said cam in complementalrelation for causing said power interruption, an electric circuit in which said electric translating device is included and comprising two partial circuits, a manual switch in one of said partial circuits, an automatic switch controlled by said movable member in the other of said partial circuits, and manual shifting means for said shiftable member.

6. In weighing mechanism of the character described, the combination of a receptacle, power means for feeding material into said receptacle comprising a driven member, an electric translating device, a movable support therefor, power interrupting means comprising a shiftable member on said mov able support, a complemental cam therefor operated by said power means, said shiftable member operated by said electric translat ing device, scales having connection with said receptacle and con'iprising a movable n'iember actuated by the weight of material in said receptacle, an automatic switch, and an electric circuit in which said electric translating device and said automatic switch are located, said automatic switch arranged to be actuated by said movable member.

7. In weighing mechanism of the character described, the combination of a receptacle, power means for feeding material into said receptacle comprising a driven member, an electric translating device, a movable support therefor, power interrupting means for said driven member, manual control means therefor, and automatic control means therefor comprising a shiftable member on said movable support, a complemental cam therefor operated by said power means, said shiftable member controlled by said electric translating device, scales having connection with said receptacle and comprising a movable member actuated by the weight of material in said receptacle, an electric circuit including a pair of partial circuits, said electric translating device included in said electric circuit, a manual switch in one of said partial circuits, and an automatic switch in the other of said partial circuits, said automatic switch ar 'anged to be operated by said movable member.

8. In weighing mechanism of the character described, the combination of a receptacle, power means for feeding material intosaid receptacle comprising a driven member, an electric translatingdevice, power interrupting means comprising a shiftable member controlled by said electric translating device, a compleinental cam therefor operated by said power means, scales having connection with said receptacle and comprising a movable member actuated by the weight of material in said receptacle, an automatic switch, an electric circuit including a pair of partial circuits, said electric circuit including an automatic switch controlled by said electric translating device, an automatic switch in one of said partial circuits, and a manual switch in the other of said partial circuits, arranged to control said first-named automatic switch, said second-named automatic switch arranged to be opened by said movable member.

9. In weighing mechanism, the combination of material feeding means, interrupting means therefor comprising an actuating member and a control member, an electric translating device in association therewith arranged for normally holding said control member in inactive relation to said actuating member, a weighing device comprising a movable element, {1116 a coacti. movable element for said electric translating device, said last-named clement arrai'i ed to be actuated by said first-named element for change of electric ene y in said electric translating device whereby to place said control member in coactive relation with said actuating member, whereby said 'ontrol member is actuated by said powe iii-sans through the medium of said actuating member.

10. In weighing mechanism of the character described, the combination of a material receptacle, feeding means for feeding material for said receptacle including a movable element, an electric translating device for controlling the latter, an electric circuit including said electric translating device and an automatic electric switch, scales coins-rising a relatively stationary dial-plate and a relatively rotatable dial-plate, said dial-plates provided with similar dials, means for relatively adjustably positioning said dial-plates, and a contact-part shifted by the relative shift ng between said dialplates, said automatic switch including a movable nember arranged to be actuated by said contact-part for operation of said automatic electric switch and said electric translating device whereby said electric translating device influences the movement of said movable element.

11. In weighing mechanism of the character described, the combination of a material receptacle, a material moving member for moving material for said receptacle, driving means for the latter including a movable element, an electric translating device for controlling the latter, an electric circuit including said electric translating device and an automatic electric switch: scales comprising relatively movable members.v a relatively stationary dial-plate and a relatively rotatable dial-plate; said dialplates provided with similar dials, a finger provided with a pointer for each of said dials, means for adjustably positioning said rotatable dial-plate for registry of a desired indication of weight on its dial with one of said pointers, means for connecting said rotatable dial-plate and said finger in adjusted position, and a contact-part on said rotatable dial-plate, said dial-plate and finger rotatable about said relatively stationary dial-plate for registr'y of the other of said pointers with the similar indication of weight on said relatively rotatable dialplate, whereby said contact-part actuates said automatic electric switch for operation of said electric translating device and said movable element into interrupted drive relation.

law)

12, In' Weighing mechanism of the character described, the combination of a ma terial receptacle, a'material moving memb'er therefor, driving means for the latter including a movable elementfan electric translating device for controlling the latter, a manual means for controlling said movable element, an electric circuit including 'tionary dial-plate and a relatively rotatable dial-plate: said dial plates provided With similar dials, a finger provided with a pointer for each o'f said dials, means for adjustably positioning said rotatable dialplate tor registry of a desired lndlcation of Weight on its dial with one of said pointers, means for connecting said rotatable dialplate and said finger 1n adpusted position, a

contact-part on said rotatable dial-plate, f

lating device and said movable elementinto interrupted drive relation, and manual means for shifting said movable element.

In testimony whereof, I have hereunto signed my name. v

PAUL S. WVARD.

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