Automatic weighing-scale.



E. A. LAVO. AUTOMATIC WEIGHING SCALE. APPLICATION FILED MAR.27, 1914. Patented Nov. 17 1914. 2 SHEETS-SHEET 1. . i' Y 0 Ella- Q 1. Q\ I, Fi x. i m m I a v //7 Van fo r, ll ffrresaea: ' i The main objects 'oithis invention" are to citizen of the United States ofAmerioa, and v and u the weighing receptacle,- scale pan; 'to 4 UNITEDSTATW .PATENTFOFFIGE; EDWARD a LA-vo," o'sonro'Aeo', - 1 cnown: AND own-mp1, 'tb soPHus at I, EowARoAiI Live, a a 'resident .of Chicago, cbunty f flock, and State of I1linois,.l1ave. invented cer tai'n new ful Improvements in Automatic- Weigh ng-Scales, a specification! provide an impnb've tomatip 'weighin-g scale part cularl adapted for use in' weighi'ng cereals, whie are fed theretoiin a substantially c. ntinuous stream to provide an improved construction, and arrangement of provide an improved fafiiange'ment of the mechanism for locking the receptacle in its: cl for o enin'gand closing tilted positions, I the 'scharge ou lets of t 'ereceptacle-c'on partm'en-ts; and to provide improved means .for checking the discharge'oflmateri I from the supply hoppe when. the, receptacle is I ,a similar. view in which: Figure 1 is a side elevation of an automatic weighin scalel bodyin the fore going impro't'e ents,' t e- View s owing the means'iwhei'eby the weighing receptacle 1's. flocked in its tilted positions,othe full and dotted outlines indicating respectively the two positions f the receptacle. ,Fig 2 is from the opposite side'of the device showing the links-Which open and close the gates for the ldischarge outlets of the ends ofthepara-llel ,le'gs said receptacle. p In. he construction shown in the drawings, the support for the deviee'comprises asuitable framework 1 made up preferably of angle bars and arranged-s0 'as to either stand on'the'floor or; be suspended-from above. AY-shaped scale beam 2 is'fulcrumed on" the frame 1 bym eans-ojt the knifeiedge trunv nions 4, and graduations on the scale beam The weighing. receptacle or bucket '3 1s .pivotally' 'mounted on trunnions 6 carried at of the. scale .beam, The bucket id herem shown to be bf -he tagona-l shagie and has partitions 7 I LLINoIs, Ass enoli of speciflcation'o f l etters Patent. I .Ap plicatlon filed Marq'h-2fi', 149142; eria1|No. 82.7,543. as to'-'di'v'*ide'.,t he bucket into: bottom adapted to be! t doors 10 and '11 whicl1 constitute two sides fwhich the following is illustrative embodiment of this inVenP. is- "provided" with the usual- Weight 5 carrying a set screw 5.1 adapted to 'secure the Weight in registration with the om-the angle formed by. theends otthe Patented-Not; 17; 1914. at the top 'and' have disc closed .=,'o'f the bucket? i y The tippihg or gscillatingof-the bucket; so as to alternate t e fillin'g'of the compart mentsI S and 9. controlled Iby means of links-"lb and 13, and M and 15,'resp'ectively arranged'in pairs' and pivot-ally connected a fl gether iat'lfi and 17," .X'ha't are known' as 11 m; 'le'yjers. The links 12 nd 15 are pivotedto a bost l8,'a'nd the ,links "13 and 15. are pivotedbucket. $houlder so'r fingers-19 an'dIQ'O are ".formbd ;on the links'12 V 22 ca1 i'ied by the lin l3fan'd '15 which limit the downward m oveihent of the link as shown :m' Fig; 1, "whereby the bucket 'is locked in one or the other of its 'sitio'ns. The knee le ers are trippedby st'ud bolts 2 3- and 2-1 secured .to the fram .tio ed, so. that't'hey will be engaged by he re pective links 12 and 14, whereby the e-# spective joints l6 and l7 are brokeliasthe "bucket descends so as to allowrit to be tilted t'done'sidefor' the other. The studs'23 and 2 are provided-With nutsf26 and-27 b "means of'whi asito' time the tilting of'the' bucket. a The gates '10 and," 11 are hinged along th adapted to. be ad3usted' so thei 1' upper edges to '-'the' upright ends ofthe bucket 3, and the openiii'g a d closingthereof'is controlled by the tilting-of the bucket through the'action 'oflthe links 2S and'2 9; the paralleldlegs of the -scalle bam'Q, and embracing the bucket 3. The yoke 31 is maintained in a substantially vertical posiv, tion during the movement of the bucket by means of a B2 pivoted to the post 1-8 and to a ,p'os t Whichis rigidly secured on the frame 1, Anarm 33 is'secured to the frame 1 and has an a 'rture on slot formed in the lower-en .AU'roilr-ATIoI- WEIGHING-SGAIIE. m6 compartofpen arge outlets 'at'the by I gates 01', so as "to constitute. to' the si'des ,of'the and 14, and readap'tedto engage-t e'r'espectivd pins 211 nd' I and "posi? hereof, through which thescale 11o beam 2 extends. I The slot 34; is arranged so as to limit the movement of the scale beam 2. A balance ball 35 is mounted on a threaded pin 36 secured to the scale beam 2 and-adapted to be used for adjusting the balance of th'e scale beam and bucket. ' suitablehopper or chute 37'is located above the bucket 3 in position to direct material flowing therefrom. into one or theother of the compartments 8 and 9. The : chute is provided with gates 38 and 39 hinged at their upper ends and arranged j, tozbeadjusted so as to vary the volume of thefstream}. of material flowing from; said chute is provided with gates 38 and 39 is.;l ,'glete1'mined by means of suitable arcshaped bars 10 which are adapted to, be se cured in any "desired position by'boltsal carried on the bracke s 42 secured on the 3 through tlfi medium of anarm 4:6 rigidly secured to one side of the bucket 3, and hav ing its upper end confined betweenthe antifriction rollersfl7 mounted on the sides of said pan. The arrangement of the arm 16 issuch that the pan will be shifted to move the part between the openingsA-l'and 45- across the mouth of the chute37 when theupper abutting edges of the'partitions 7 and 7.1 are passing said mouth. Theoperation of the device shown is as follows: The weight is set and locked on the scale beam 2 at any desired point. Assuming that the bucket is in the position indicated' by full outlines in Fig. 1, the material to be weighed,'such as cereals, tea, etc., is allowed to flow. from the supply hopper into the compartment 8.. When the predetermined amount of material has been received by the compartment 8, the bucket and its contents over-balance the weight on the scale beam and the bucket moves downwardly. This brings the-link 12 into contact with the stud 23 and which breaks the joint 16, and allows the weight of the material in said compartment to sw ng the bucket 3 on the trunnions and thereby bring the other compartment into position to receive material. The swinging of the bucket. strightens the'l'inks 1e: and 15, so that they .lock the bucket while said other compartment is being filled. This swinging move- 'ment of the bucket 3 also causes the link 28 to open the gate 10 so that the material in the compartment 8 is permitted to escape into a suitable receptacle, such as a carton [placed belowthe bucket. The link at the same time shuts the gate 11 to close the comiii 17,6178 partment 9. i As soonlas'themeterialbegins to fiow from. the com artmen't 8, the bucket is moved upwardly i to its normal position Y by the weight 5 where it remains until the weight of the contents in said other compartment 9 overbalances the weight 5 whereupon the-cycle of operations is re-: peated. When the abutting ends of the partitions \7 and-17.1 are passing under the mouth of the hopper 37'during the swinging movement of the bucket, the middle part of the stirrup or pan .-4-3 temporarily cuts oif thefiow of material from the'hopperso as into the compartment '9 before the gateis entirely closed; As thebucket completes. its tilting movement the' 'arm 4:6 completes the swing of the stirrup, so as to bring oneto prevent material from being precipitated or the other of the openings into registra .v tion with themouth of the'chute 26.. The hinged sides 27 and 28 of ,the supply hopper may be adjusted so as to vary the volume of. material passing from the chute. Although but one specific embodiment of this invention has been herein shown and described, it will-be understood that numerous details of the construction shown may .be altered or omitted without departing from thespirit of this invention as defined by the following claims. v e I claim: ' l. A weighing-device comprising aframe, ' its tilted positions, and links carried by said arm'and connected to said gates and adapted to cause a positive shifting of said gates for opening and closing said discharge openings when said receptacle is shifted. 2. A weighing device comprising a frame, a scale beam pivoted thereon, a doublecom- 1 partment receptacle tiltably mounted onv .said scale beam, gates arranged to open and close discharge outlets for said compartments, a yoke suspended from said scale for maintaining said yoke in a substantially vertical position, system of levers con necting said receptacle with said yoke and adapted to operate to locksaid receptacle its beam and embracing said receptatcle, means in its tilted positions, and links connecting i said gates to said yoke and adapted to op erate for opening and. closing said gates, when said receptacle is tilted. A weighing device comprisinga frame, a scale beam pivoted thereon, ,a double-cont partn'ient, receptacle tiltably mounted on said scale beam, gates arranged to open and close dischar e outlets for said 'compart ii v v I ments, a yoke suspended from said scale beam and embracingsaid receptacle, means vertical position, links connected together in pairs between said yoke and thereceptacle'at opposite sides "of said yoke. and adapted to alternately" lock said receptacle in' one oi the other of its tilted positions, posts on sald jframeextendm'ginto position to be engaged by said linksso as tobi'eak the joints thereof and permit saidireceptacle to tilt,.an,d means separate from sai links for opening and closing said gatcs' ivhen said, receptacle is tilted J' a; A Weighing device comprising a vertical position, -'a system of" levers. connecting'said receptacle with sa'id yoke and adapted to" operate to lock said receptacle in its tilted-positions; links connecting said gates to said yoke 'and adaptedto' operate forfopeliing and closing said gates-.'-\vhen said receptacle is tilted, and a link pivoted Office. [SEAL] Corrections in Letters Patent No. 1417,6713}. frame,- a scale be'ai n pivoted .t'l1ereon,'- a'gdouble-com to said frame and to said yoke and adapted to maintain said yoke inna substantially verfor maintaining said yoke in a sub'stantia lly ti'ca-l osition during themovement of said recep 'acle y 5. The combination witha suppl hopper, . of a r'eceptacletiltably mounted be on? said hopper, a. partition dividing. said! receptacle 111130 two compartments, means adapted-to tilt said re eptacle for moving one ,or'tlie other of said compartments into position toreceive the material from said hopper; and I a stirrup mounted to shift across'the moutll' of said hopper; anf arm rigidlyconnected to said .r'eceptacle andshiftably connected to said stirrup, said arm being adapted to locate saidstirrup to tone side of the'm'oi'lth 'of said hopper vwhen. said hr'ec'eptaclevis in either of its tilted- POSl tlQHIS;aHd lZO IIlOVQ said stirrup to clos e'jthe mouth of said hopperwhen 'said paititionis swinging pastsaid month during the' tilting'ofsaid recep' acle. Signedat Chicago 1914. EDWan-D -A. LAvo! WVitnesses-z I HAZEL G CormIAN, 'WILLIA E. HANN. It is here'hycertitied that in Letters Patent No; 1,117,678, granted November 17', 1914, upoh the-application of Edward La'vo, of chicago, Illinois, fOr' an v improvement in Automatic Weighing-Scales] errorsappear in the printed specification-requiring correction as follows: Pagefi, line 15, after the Word chute insert a period; same page and line strike out the Words is provided with andinsert the words T/zejansiti'oni off/16 and that the said Letters Patent should be read with these correctionsftherein that the same may'conform to the record' of thev casein the Patent Signed rid Sealed this Sthday of December; .D., 1914.: J. T, NEWTOiN, Acting Commissioner 0 f Patents. this 25th day ofMa-i'ch 4



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