USRE11503E - Automatic electric weighing-scale - Google Patents

Description

' C. 1E'.y WOOD.

AU-TCMA'T'I'C ELECTRIC WEICHINC SCALE. No. 11,503. i Reissed July 9A, 1895.

'uIcnMou,vracing;-

'jAy'ToMAfrlc ELEC-rale wsloHmepscL-s. j 'Y l teeming/parta nemuutten ment ne.' ngoasazpa Jerzy. asser` i 'O'rlriul im 601)0415. d md .ma 20,1393. lppaswm am cammen. im. la. mana 5 .Weighing-Scales; and I do hereby declare the --1 f following to be' a full, clear, and exact descrip- 'Be it known that J, CHABLESF. WO'D, of

Y I ichmol'1d,.in the'county ot Henrico and State ot'Yirginim'have invented certain newand' useful Improvements in Automatic Electric tion of the invention, such as will enable' oth- Y ers skilled in the art to which it lso 'make and use the same.

The object of my invention is to provide an pertains to automatic electricweighingf scale designed mainly for use 'in putting up in packages a small quantityot seed o r other loose merchandise and to do'this rapidly and accurately, giving to each packages uniform weight of materiali.

In aeed-houses, wholesaledrug-stores, and grocery-stores much time and labor'are expended in putting up thesesmall packages of seed, drugs, sample-groceries, da. and my ini ventlon is designed to economize `this' time and labor, and to this end-it eonsists'in the i peculiar construction' and arrangement of au automatic weighing-scale which, not only weighs the reqnisiteamount and insures uniformity, but also deposits it within paper bags in a rapid and automatic manner, as herein- I after fuuydscribed.

' the entire apparatus. Fig.,2 is an enlarged frontview ot the feed device, and Figs. 3, 4,

and 5 are enlarged detail views of the bag-lilling devices.

35 In the drawings,lA represents the standard of the scales, tothe upper partof which isyinlcl'unrled the balance-beam Af A', to eneend A' of which is suspended a pan for the weight peuded a weighing-receptacle C'for the l 45 the-seed from so sliding .door N, which isa'r'angedv toslide- B, and to the other end A of which issuseasily in vertical guidewa'ys'to close the ori# tice at the-bottom ot' the hopper.. T hisdoor Figure 1 is a side view, partlyin seclion,'ot

y N has attachedtoils upper edge a'narmaturev VN', arranged tobeV attracted bythe electromagnet J to raise the door and start the dis` charge of seed. The magnet J is rigidly connected to'rod J and cross-bar J,`and`therod J is arranged to slide vertically with the magnet in arms 0 O', the hopper.

arm O' therefis disposed a spiral spring S, wound about the rod-J', upon which vthe weight of the magnetand its attached parts is-sustained in sensitive equilibrium. v0u the projecting from the end of 'Y '6c Between the cross-bar J zand the projecting lower endct the rod J is a flathead i, whichij forms "a contact-face ffor the end AI of the j .balance-beam tostrike against. -This rod J vis 'connected to one of the terminals ot .the coil oiEY the magnet J, and the other terminal is connected through wires a and atoone pole of the battery ZL The other'poleot this in the balances tbeend Aof the balancebeam rises to'l contact withA the point `i,and

thus establishes au electric circuit through electromagnetl J, which, attracting armature N", lifts' the doorN and allows the'seed to `discharged into theweighin'g-receptacle- 'I will now describe the object of'- making the magnet J movable. When the seed isrunning ont through the door 'into the receptacle -G and as soon as the weight of the seed'in re" ceptaele C balances the weight B, the'recepjf tacle C begins to descend and breaks electnl cal contact between beam A* and face i; but

as there is a stream of seed in mid-air in the -act ofv falling through the wide-open 4door .the seeds are dumped into receptacleiCaf-j ter electrical contact is broken Vand give a greater weightthau is indicated by B. The

object in making magnet J movable is tsr-conA rect this diicnlty and also secure other ad. vantages. With themagnet made adjustable, as described, when the end A- ot thebeam rises its'st ed'ect is to establish the-.electric circuit through magnet J, as described;'f but l:

the magnet J beingheld in delicate equilibrium by its spring S the further movementot tro beam A* upwardly lifts, through rod J",'.`th e magnet J and pulls the door' N farther open.

No when the reeeptaclebeginstosettle the .AV 1

tromagnet D, fixed to the side of the receptacle. After the seed are deposited in and' ally reduced until only a few seed are in the 5 act of fallingat the moment of tbebreak in electrical contact between A2 and z', and such of these few seed as happen tol be in the air at this moment do not in volve any substantialjincreaso in the-weight olfl the charge of seed." It willv alsobeseen that by making the -mag-net J movable a much greater range of movement'is obtained in lifting the door than I could be obtained by the limited range of the 'armature with a stationary magnet. Within the box E is arranged an electromagnet Fand a long lever G, having at one end beneath the electromagnetF an armature andjat the other the transfer-funnel H, lwhich is rigidly 'attached to'a'nd supported by the same. This lever emerges through an opening in the side of the box", and the transfer-funnelll is sustained just below the outlet-door .e of the weighingreceptacle C. This door slides ver` a sharp point h. (See Figs. 3, 4, and 5.) This pointA serves to penetrate the narrow space y lbelween the sides of the llattenedor collapsed 'bag to. open the month beforedischargingthe f., seed into the same, and insures the,deli\'ery lel? the seed upon one sideof this point h' and .into the mouth of the bag. T o this side of tically in guides and has at its upper edgeah armature e',arranged to be lifted by-an eleo- V weighed by the receptacle vGthey 'areto .be depositedin the transfer-funnelH and trans# vfered into the bag, a series of'which-are retained in the bag-holder K. On'the receptacle O is a bent wire d that is arranged' to dip into a-mercu ry-column d'. This mercury-col-y umn is connected by wire a to electromagnet F and thence to circuit-wire a. Assoon as the receptacle C descends with the load` electrical contact is made between d and d?, and d being connected with one pole of the battet-y through the' scales and wire b and d'with the other pole of the battery through wire-ti2 and a the magnet F is charged, and, attracting the armature of lever G', lowers or throws down the .transfer-fuunelH, which, descending. opens the mouth of 'the bag, as will movement is eiected the door e of the recep- 2 tacle C is' opened and its contents transferred To open -1.he door e, v'I complete an electrical circuit' 5o through the magnet D immediately after the through the funnel-H into'the bag.

circuit is establishedat d d' through rnaglnet: F. This second circuit is established by a 4bent wire c, adapted toenter a mercurycoln mu c', the wire cbeing connected through magnet D to the scales and one vpole'of the y ing divided between the two magnets-D and' l". In making contact for the two circuits of f the electromagnets 'Fand D, I prefer the mercury-columns or cups, as shown,since they do .nctinterfere with the free moyementof the bedescribedv farther on. vAs soon as this weighing-receptacle'` C; but I may employ spring-contacts, slides, or any, other lform of electrical contactsl for this purpose.

i I will now describe Athe l,bag-filling devices and their operation' in connection with the features already described'. Ktis a bag-holder arranged beneath the scales on an incline, and

\ filled with paper bags arranged vertically and pressed forwardly bya roller L, which has an angular wire framel that bears'against the tops of the bagsand holds them against any tendency to fallback. This fratnel is sup'-A ported at its rearend upon a' roller P. At the lower, e'nd of the bag-holder the row of bags are heldagainst falling ont 4by a lip m I justbelow the transferfunnel.

mouth immediately beneath the end of the funnel H, whichin descending penetrates the month and expands the same preparatory to delivering the charge of s eed into the same.

' The transfer-funnel H is made with' one sido extended below the other andterminating in the funnel ynear its top is hinged a pendent bent ar'm g, having near its middle au offsetting weighted arm g', and at its lower end an articulated and pointed toe g3. bend of the arm g there is a stationary bar g2, supportedby a portion of the framework, as

, in Fig. 1,-and beside it and under the'weight g there is a rest or contactsurface g5.4 The toe g"l of the arm is jointed, so as to bend up- The bag bet ing stiff stand uprightatthis point with the ICO wardly, but cannot move downwardly, and

-j-ust opposite it in. theffunnel is an opening'h, ,into which this toe is adapted to-enter n seizing the bag. l

The operation of the parts just described is 'as follows: When the vtransfer-funuel H descends, its point entersthe mouth of the bag and the'weighted arm g' strikes the con-tach' face g and draws 'the arm g and toe gs away from the funnel, permitting= the paper s ide p, Fig. 4, of thebag to'pass betweeuthe funnel andthe toe g3. 'v'l'hemafter the bag has-been filled and the funn-el risesthe toe g-a presses the paper into-the 'opening'h of fthe funnel, and indenting or Vperfor-ating the samelifts the -Iledbag over the shoulderm until the arm tra IZO

g strikes the stationary bar g.- This throws c the arm and toe outwardly, andg'reloasing the bag, allows it withits charge' of seed to drop upon the chute, m, whence itslides lto a s nitable shelf below and is thensealed or closed Y by hand.

From the foregoing description it will b e see'n that-the order. of automatic actionis as -follows: First, the seed are discharged from the hopper'I into the receptacle C and weighed.

The receptacle C in ldescending Iirst establishes the electric circuit in magnet F, throwing down trausl'erfnnnel Ill-aud opening-.the ,Shag and immediately following the electric circuit is estabiished'in magnet D, emptying 4 jtheeontents ot receptacle C into the transfer- 5 funnel II and theuce into the bag. VRecepta- -foleC, boing thu'slighte'ned, rises, and, break- -ing the contacts at'c and d, allows door e to vclose and transfer-hopper H to rise and lift the illlle'd bag, which is-iinmediately dropped, lo :fs before described, afterwhich the same ac tiiu jus'tdes'cribed is repeated;

, la detining'the relation Vof the bag-holder and the fun-nel H to the other features-claimed' iii this case I would statett'ha't I 'do u'ot make l5 j tion' ofsaid' bag-holder and` funnel, as this has been held to'be a'separate.subject-mat` teli,` I therefore reserve' the right to cover 'these 'features'in'a separate application. i

onsiii-4 1. The' eombinnon wit'iia'scalebem, a

funnel, of electrical devices for controlli u g the discharge door of ,said hopper or receptacle, electrical-devices for 'controlling the transfer 'hopper or funnel, and two circuit closers cou-h trolled, by the. movements of lthe-scalebeam electrical devices `and a generatonsubstantiallyasset'forth. f '2. The combination'with two receptacles,

f ou'eradapted to. discharge into the other, releci trof'magnetic devices for controlling the out- "nctlo devices for controlling the outlet 'o'lt the lowerv receptacle, of .a scalebeam andl two cir- .cn'ltclosers actnated't'hereby andiiucluded in circuit .with saidelectr' magneticA devices, lnt'ibstantiallyas'w set forth.

` 3.0The combination with a' main hopper and scle beam, of a receiving hopper orreceptacle' carried by the scale beam, a tr''nsfer 45'- from -thereceivih'g hopper and discharge it .into a bag, electro-magnetic devices for con- .mliingtne'iseharge of, material from said hoppers 4or receptacles, velectro-niag'netic de- 'I I'ngajll ot-s'aigd electro-magnetic'devices wheref b `torender the dp'eratou of the Aapparatus a tt'ntic' an-d'coutinuous to weigl'aud dis# chargepredeterm-ined quantities of material long- .as the mai-u hopper .orreceptacle is -ep charged therewith,-substantially as set -ort. 4. In au automatic weighing device, the

and -a's'cale beam,fot au armature projecting i from said gate or' door, a movable Ielectro-v magnet Vconnected tothe hopper and adapted to attractsaidarmata re an electric circuit inby said electro-magnet and adapted to be en:

'in this 'case anyclaim to the special construcl Ha'v'i'ng thus described my invention, what .I claim, and desire to secure by LettersPat- -hopper or receptacle and a transfer hopper or,

and includedin an electric circuit with saidv -l'topper'o'r funnel adapted to receive material vices forcon trolling the operatiouof the trans?,i for hopper or funnel, and means for controlcludngsaid electro-magnet and a rod carried combination with a hopper, its doorror gate and a scale beam, of an-electro-'magnetic de- `vice'adapted to hold said gite or door open au electric circuit i'ncludin'g said electro-maig- -tle'vice ad'a'pted' to be' engaged by the' scale gate or door, 'substantially-as set forth.

6. Iu auaittrnaticweighiug apparatus, tho combination withaA hopper, its gate or door anda scale beam, 'of an armatureprojecti ng yieldinfr net and connection bet-weennsaid electro-mag- 'the' scale beam to control the operation of the"V stantially 'as set -forthj scale beam and a weighingV hopper or recep tacle :ar'ri'edv by the' scale beam, ot 'a pivoted lever, atran'sfe'r hopper carried vby the pivoted -le'verand adapted to receive material from `.the weighing hopperor receptacle 'and discharg'e it Aiutoa. bag ajudineansfor automati- Jeally control-liu'g'the movements of said piv otedlever, substantially as set forth.

- r 8.,'1`he combination with a main hopper 'and aA weighing hopper, of a pivoted lever, an ar- Amature at one end-of said" pivoted lever, a 'transfer hoppv 'l'.atztheother eudof said pivto receive material from .the weighing hopper,

armature, whereby to caus'ethe 'transfer hop?.

therein-,.substant'ially as setforth.

vand aftraiistereieeptacle, of a scale beam,

teig'hiirg receptacle carried by the scale beam and dspt'e'ed betwf'eeujthejmain and thetraus- 'fcrfconiirolliug th'ed-iscliarg' of nxat'eri'a'l from said recptacles, substantially asset-forth.' ,l Y 1t)- In-fan electrical weighing scales'tth'e com fbintiou withy the reservoir .hopper and its doa-audits sc'slebeam with its l'vtr'eigghiug re- *lcircnit arranged to' lift the ,door by the contactof' tlescaIe'beanr, said electromaguetj being '-fnade. jbodily jx'ovableso` as' to, follow stantially'a's shown and described.

J with rod 'J' and crossfbarJi-gniding supbeam with weighing receptacle arranged to Vcontact as described. r

7. The combination with amitie hopper, a' 9 'eep'tacl'e;l of an Aelectro magnet winni I1mi-nary i gfgaged by the. scale' beam,substaiitzially as et l 5. In an alitoniaticlweighingfapparatus,the I net, and a' rod carried bythe electro-magnetic Y t A75 beam,- whereby` to control the action of said thejhopperf'arodcarriedby saidv electro-magnet andadapted to be engaged by gate or ldoor `and Vau electriccircuit-includingr said rod,'scale beam and electro-magriet,S'iub-- oted lovely-sai -vtr'aus'fer hopper being adapted and' au' electro-magnet adapted to attract said to 5 perl to enter a bag' to. discharge 'its contents:

f2).v The combination withafmaiureceptacle fer reeeitaleg'fand electromagnetic 'devices 4 f Y cout'rolledby themqvemeutst the scale beam 'l tao the scale beam up and @own and 1in nie door t by V'xneolien-ical as 'well as electrical action, subi po'rts O, 0', supportngspring S,a'ud the scale ,i

ige` lift the electro-magnet and'- make electrical K 'v V- n5 11. The combination ofl'hop'pe"Ihaving door N with armature N-'; theelectro'magnet 12. In an electric weighingscales;the'com-A bination of the pendent weighingy receptacle.- C havingdoor e with armature e'and elect'roV magnet D, and-an electricalcontiact and b attery ci rcnr, said contact being arranged to bev closed by the descent of the'rec'ep'tacleO to open its discharge'door, as described.

' 13..In an electric weighing scales, the-cow birrationwith-.the scale beam; of the hopperl iwithfdischarge door N and magnet J arranged above it, the 'suspended weighing'- receptacle magnetF and the two'ele'ctr'ical circuits andy -Cwi'thfdischarge door eg'and magnet D, the ltransferfunnel'H mounted'on lever G, the

their contacts d, d and-c, 5',- a-rranged'to op- Y erate in seqnenceto raise the transfer funnel `and discharge the contents of receptacle C therein; substantially as set forth.

' 14. The combination with the 'electrical weighing scaleshavin g movable receptacle C,

and abag h'olderg'oE-:tl-transfer funnel-with scribed.

l 'CHARLES F. WOOD.` L

nected with the weighing scales and operated byitsicircnit, and arranged to .transfer the 'contents of theweigh-ing receptacle to the bag,

substantially as shown and described.``

'supporting lever and operating; vmagnet con- 15.' The combination ofthe hopper with elecs trcally controlled door N, the scale beam with 'suspended receptacle C having electrically. l

transfer (nnnel H', t`wo'electricalv circuits withcontrolled discharge door, the adjustable contacts carried by the receptacle C, one cir- `cuilzvbeing arranged'to adjustth'e funnel and the other to control the discharge door of the weighing receptacle 'and bagholding and feed.

ing devices, substantially ask shown and de- Witnesses:

.T. H.' HUFFMA'N,

G. F.v DoWNrNG.

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