CH191048A

CH191048A - Apparatus for simultaneously determining the volume, weight and density of granular materials.

Info

Publication number: CH191048A
Authority: CH
Inventors: Volumetriques Societ Compteurs
Original assignee: Soc D Compteurs Volumetriques
Priority date: 1935-09-23
Filing date: 1935-09-23
Publication date: 1937-05-31

Description

Appareil pour determiner simultanement le volume, Je poids et la densite de matieres granuleuses. 11 existe divers types d'appareils permet- ta_nt d'effectuer la mesure, qui peut etre au- tomatique, d'un volume quelconque de ma- tieres granuleuses. Apparatus for simultaneously determining the volume, weight and density of granular materials. There are various types of apparatus for carrying out the measurement, which may be automatic, of any volume of granular materials.

Ces appareils connus comportent une banne solidaire dune tremie compensatrice, cet en semble etant supporte par las extremites de deux fleaux aux extremites libres desquels est fixe un contrepoids. Ces appareils ne se pretent qu"a une mesure volumetrique, mais ne permettent pas de determiner 1e poids et la densite de la matiere. These known devices comprise an awning integral with a compensating hopper, this apparently being supported by the ends of two beams at the free ends of which is fixed a counterweight. These devices only lend themselves to volumetric measurement, but do not allow the weight and density of the material to be determined.

La presente invention a pour objet un ap- pareil pour determiner simultanement la me- sure volumetrique, 1e poids et la densite de maueres granuleuses, en particulier du b16. The present invention relates to an apparatus for simultaneously determining the volumetric measurement, the weight and the density of granular mauers, in particular b16.

Les dessins annexes representent, ä titre d'exemple. une forme d'execution de 1'appa- reil selon 1'invention ainsi que trois variantes de cet appareil. The accompanying drawings show, by way of example. a form of execution of the apparatus according to the invention as well as three variants of this apparatus.

La fig. 1 est une vue schematique en elevation de face de cette forme d'execution de 1'appareil La fig. 2 est une vue de Profil correspon- dante ; La fig. 3 est une vue en elevation se rap- portant ä la Premiere variante, la masse auxi- liaire etant montree dans la Position quelle prend Pendant 1e remplissage de la banne; La fig. 4 est une vue de detail dans la- quelle la masse auxiliaire est montr 6e en Po sition de pesee; Les fig. 5 ä 8 se rapportent ä la deuxieme et ä la troisieme variante. fig. 1 is a schematic front elevational view of this embodiment of the device. FIG. 2 is a corresponding side view; fig. 3 is an elevational view relating to the first variant, the auxiliary mass being shown in the position which it assumes during the filling of the awning; fig. 4 is a detail view in which the auxiliary mass is shown in the weighing position; Figs. 5 to 8 refer to the second and the third variant.

La forme d'execution de 1'appareil repre- sentee comporte un bäti 1 supportant, par 1'intermediaire de couteaux 3, deux fleaux principaux 2 (un .de chaque cöte). Ces fleaux sont articules, par une de leurs extremites au moyen de couteaux 4, sur. la banne 5, et sont soumis ä leur autre extremite, ä 1'action d'un contrepoids 6 constitue, par exemple, par une boite ä poids. The embodiment of the apparatus shown comprises a frame 1 supporting, by means of knives 3, two main beams 2 (one on each side). These beams are articulated, by one of their ends by means of knives 4, on. the awning 5, and are subjected at their other end, to the action of a counterweight 6 constituted, for example, by a weight box.

A cette extremite d'un des fleaux 2 est fixe, comme 1e montrent las fig. 1 et 2, un bras 7 sur lequel peut coulisser librement une masse mobile 8 dont an verra 1e röle plus loin. Deux fleaux 9, montes rotativement en 9' Sur 1a benne 5 et en 9" Sur 1e bäti 1, main- tiennent ladite benne dans sa Position verti- cale. At this end of one of the beams 2 is fixed, as shown in FIG. 1 and 2, an arm 7 on which can slide freely a mobile mass 8, the first role of which will be seen later. Two beams 9, rotatably mounted at 9' on bucket 5 and at 9' on frame 1, maintain said bucket in its vertical position.

Le point d'appui 4' d'un des couteaux 4 coopere avec un couteau 10 prevu ä 1'extre- mit6 inferieure de la tige 11 dun peson 12 comportant un cadran 13 ä double gradua- tion, l'une indiquant 1e poids de la mauere contenue dans la benne et 1'autre indiquant 1e poids sp6cifique de ladite matiere, ces indica- tions 6tant donn6es par une aiguille 14. The fulcrum 4' of one of the knives 4 cooperates with a knife 10 provided at the lower end of the rod 11 of a load cell 12 comprising a dial 13 with double graduations, one indicating the weight of the the material contained in the bucket and the other indicating the specific weight of the said material, these indications being given by a needle 14.

L'ouverture sup6rieure 5' de la benne 5 comporte un rebord Sur lequel repose 1'extre- mith inferieure 15 de la tremie compensa- trice 16. The upper opening 5' of the bucket 5 has a rim on which rests the lower extremity 15 of the compensating hopper 16.

Sur ladite tr6mie compensatrice 16 sont articul6s en 17 deux fl6aux 18, un de chaque cöt6. Ces fl6aux 18 sont articules en 19 Sur 1e bäti et comportent un contrepoids 20. Leur extr6mit6 libre comporte une encoche 21 coopkant avec un contrepoids fou 22 repo- sant normalement Sur un berceau 23 solidaire du bäti 1. On said compensating hopper 16 are articulated at 17 two beams 18, one on each side. These beams 18 are hinged at 19 on the frame and include a counterweight 20. Their free end includes a notch 21 cooperating with an idle counterweight 22 normally resting on a cradle 23 secured to the frame 1.

D'autre Part, en 24, sont articul6s Sur la tr6mie 16, par une de leurs extremites, deux fleaux 25 (un de chaque cöt6), 1'autre extr6- mit6 de ces fl6aux etant articul6e en 26 Sur 1e bäti 1. On the other hand, at 24, are articulated On the hopper 16, by one of their ends, two beams 25 (one on each side), the other end of these beams being articulated at 26 On the frame 1.

La benne 5 est ferm6e ä sa Partie infe- rieure par une poste 27 articul6e en 28 et munie dun contrepoids 29. Deux bielles 30, une de chaque cöt6, sont articulees en 31 Sur ladite Porte. L'extr6mite libre de chacune de ces bielles est articulee en 32 Sur un verrou- came 33 solidaire d'un axe rotatif 34 qui tra verse la benne. The bucket 5 is closed at its lower part by a post 27 hinged at 28 and fitted with a counterweight 29. Two connecting rods 30, one on each side, are hinged at 31 on said door. The free end of each of these connecting rods is articulated at 32 on a cam lock 33 integral with a rotary axis 34 which crosses the bucket.

De chaque cöt6 de la benne 5 est monte rotativement Sur 1e bäti 1, en 35, un loquet 36 dopt une extremite comporte un tenon 37 coulissant dans une fente 38 pratiquk dans une bielle 39 articulee par son extremit6 su- p6rieure en 40, ä la tremie compensatrice 16. Sur cette tr6mie compensatrice 16 est arti- cul6, en 41, un levier ä, trois bras 42, 43, 44. Le bras 42 est uruni, ä son extremit6 libre, dune Porte 45 destinee ä arreter 1'ecoulement de la matiere de la tremie compensatrice 16 dans 1a benne 5, et ä araser 1e contenu de cette derniere. On each side of the bucket 5 is rotatably mounted On the frame 1, at 35, a latch 36 has one end comprising a tenon 37 sliding in a slot 38 practiced in a connecting rod 39 articulated by its upper end at 40, at the compensating hopper 16. On this compensating hopper 16 is articulated, at 41, a lever with three arms 42, 43, 44. The arm 42 is connected, at its free end, to a door 45 intended to stop the flow of the material from the compensating hopper 16 into the bucket 5, and to level off the contents of the latter.

D'autre pari, Sur 1e bras 42, est articul@ee en 46 une bielle coudee 4 7 articulhe en 48 ä un verrou-came 49 uruni d'un talon de butee 50 et monte rotativement en 51 Sur la tr6mie compensatrice. Avec la butee 50 coopere une but6e fixe 52 solidaire du bäti 1. A 1'extre- mite du bras 43 est attach6, par une de ses extr6mites, un ressort 58 travaillaut ä la compression, 1'autre extremite de ce ressort prenant appui contre 1e bäti 1. On the other hand, on the first arm 42, is articulated at 46 a bent connecting rod 47 articulated at 48 to a cam lock 49 uruni with a stop heel 50 and rotatably mounted at 51 on the compensating hopper. With the stop 50 cooperates a fixed stop 52 integral with the frame 1. At the end of the arm 43 is attached, by one of its ends, a spring 58 working in compression, the other end of this spring bearing against 1st frame 1.

Un ressort '54 travaillant ä la traction est fixe par une de ses extremit6s au bras 44 et, par son autre extremit6, ä un Support 55 solidaire de la i-6mie compensatrice. Sur 1'extr6mite 44',dudit bras 44 repose une Porte 56 solidaire d'un brass 57 articul6 en 58 Sur la tr6mie de chargement 59. Au d6but dune operation de mesure, los diff6rents organes .de 1'appareil occupent la Position representee Sur la fix. 1, los Portes 56 et 45 6tant ou- vertes et la Porte 27 6tant ferm6e. A spring 54 working in traction is fixed by one of its ends to the arm 44 and, by its other end, to a support 55 integral with the compensating i-6mie. On the end 44' of said arm 44 rests a door 56 secured to an arm 57 articulated at 58 on the loading hopper 59. At the start of a measurement operation, the various organs of the apparatus occupy the position shown on the fix. 1, Gates 56 and 45 being open and Gate 27 being closed.

Le fonctionnement est 1e suivant: La matiere qui arrive par la tremie de chargement 59 s'ecoule dans la tremie com- pensatrice 16 et de cette derniere dans la benne 5. Une fois cette benne 5 pleine, la matiere continue ä s'ecouler et s'61eve Clans la tr@mie compensatrice 16 6tant donne quo los contrepoids 6 et 20 et la masse 8 sont dimensionn6s de fagon ä faire equilibre non seulement ä la benne avec son contenu, mais aussi ä une certaine quantit6 de matiere Jans la tr6mie compensatrice 16. Lorsque cette quantit6 de matiere dsversee dann ladite tr6- mie compensatrice 16 a 6t6 depassee, mais seulement ä. ce moment, 1'6quilibre se trouve rompu et alors la benne 5 et la tremie des- cendent ensemble jusqu'ä ce quo 1'encoche 21 du fkau 18 vienne en contact avec 1e contre- poids fou 22. Dans ce mouvement de descente, 1e ressort 53 qui etait comprim6, se trouve d6tendu. Simultan6ment, 1e bec 50 rencontre la butee fixe 52. Le mouvement de deseente continuant, 1e verrou 49 tourne Sur son axe 51 et cesse de retenir la bielle 47 de Sorte que 1e levier ä trois bras 42, 43, 44, sous 1'impulsion du ressort tendu 54, tourne sur son axe 41 en entrainant Jans son mouve- ment la. Porte 45 qui obture la tremie 16 et a rase la. matiere contenue dann la benne 5. En meme temps, la butee 44' qui maintenait ouverte la Porte 5-6 de la tremie de charge- ment 59. libere cette Porte et lui permet de se fermer partiellement. A ce moment, 1e bras 7 faisant corps avec los fleaux 2, a son extremite 7' plus basse, quo son extremite 7"; la masse mobile 8 gli6se sur ledit bras 7 et vient so placer contre la butee prevue ä 1'extremite 7'. L'action de la benne 5 sur los fleaux 2 se trouvant ainsi augmentee de 1'ac- tion de la masse 8, et 1'ensemble n'etant plus eontrebalance par 1e contrepoids 6, ladite benne 5 se separe de la tremie compensatrice 16 qui a ete temporairement arretee par 1e contrepoids 22. Elle vient, par 1'organe 4' d'un des fleaux 2, prendre appui sur 1e cou- teau 10 du peson, commandant 1'aiguille 14 qui se deplace devant 1e cadran 13, comme explique plus haut. De cette fagon se trou- vent indiques 1e poids et la densite du vo- lume @de matiere contenu Jans la benne. The operation is as follows: The material which arrives through the loading hopper 59 flows into the compensating hopper 16 and from the latter into the bucket 5. Once this bucket 5 is full, the material continues to flow and rises in the compensating hopper 16 given that the counterweights 6 and 20 and the mass 8 are sized so as to balance not only the bucket with its contents, but also a certain quantity of matter in the compensating hopper 16. When this quantity of material poured into said compensating hopper 16 has been exceeded, but only at. at this moment, the balance is broken and then the bucket 5 and the hopper descend together until the notch 21 of the fkau 18 comes into contact with the idle counterweight 22. In this downward movement, the spring 53 which was compressed, is relaxed. Simultaneously, the slat 50 encounters the fixed stop 52. The downward movement continuing, the lock 49 rotates on its axis 51 and ceases to retain the connecting rod 47 so that the three-armed lever 42, 43, 44, under the of the stretched spring 54, rotates on its axis 41, causing Jans its movement 1a. Door 45 which closes the hopper 16 and has leveled it. material contained in bucket 5. At the same time, stop 44' which kept door 5-6 of loading hopper 59 open frees this door and allows it to partially close. At this moment, the first arm 7 forming one body with the beams 2, at its lower end 7', than its end 7"; the mobile mass 8 slides on said arm 7 and comes to place against the stop provided at the end 7 The action of the bucket 5 on the beams 2 being thus increased by the action of the mass 8, and the assembly no longer being counterbalanced by the counterweight 6, said bucket 5 separates from the hopper. compensator 16 which has been temporarily stopped by the counterweight 22. It comes, by the member 4' of one of the beams 2, to rest on the first knife 10 of the load cell, controlling the needle 14 which moves in front of the first dial 13, as explained above, in this way the weight and the density of the volume of material contained in the bucket are indicated.

Lorsque 1e poids de la matiere qui con- tinue ä tomber Jans la tremie compensatrice 16 par la Porte 56, restee partiellement ou- verte, est suffisant, cette tremie compensa- trice entraine 1e contrepoids 22 et, par 1'in- "termediairedes bielles 39 qui poussent los tenone 37 des bras 36, ces bras oscillent au- tour de leurs axes 35; los extremites 36' des- dits bras 36 venant buter contre los verrous 33, dAverrouillent ceux-ei; de ce fait, los bielles 30 n'stant plus retenues permettent ä la Porte inferieure 27 de s'ouvrir Gous 1'ac- tion du contenu de la benne. When the weight of the material which continues to fall in the compensating hopper 16 through the door 56, which has remained partially open, is sufficient, this compensating hopper drives the counterweight 22 and, by means of the connecting rods 39 which push the studs 37 of the arms 36, these arms oscillate around their axes 35; the ends 36' of the said arms 36 come to abut against the bolts 33, locking these; as a result, the connecting rods 30 n The further restraints allow the lower door 27 to open by the action of the contents of the bin.

Lorsque la benne 5 est vide, la Porte 27 se referme sous 1'action de son contrepoids 29. Sous 1'effet du contrepoids 6, la benne 5 vide remonte et, rencontrant la tremie 16, la ramene ä sa Position initiale. Ce mouve- ment de montee produit la compression du ressort 53, co qui fait tourner 1e levier 42, 43, 44 et provoque 1e retour en Position d'ou- verture des Porte 56 et 45; 1e bras 7 prenant une inclinaison inverse ä la precedente per- met ä la masse 8 de revenir, elle aussi, 'a sa Position initiale (fig. 2). When bucket 5 is empty, door 27 closes under the action of its counterweight 29. Under the effect of counterweight 6, empty bucket 5 rises and, encountering hopper 16, brings it back to its initial position. This upward movement produces the compression of the spring 53, which causes the lever 42, 43, 44 to rotate and causes the return to the opening position of the doors 56 and 45; the arm 7 taking an opposite inclination to the previous one allows the mass 8 to return, too, to its initial position (fig. 2).

Los mesures de poids et de densit4 indi- qu6es par 1'aiguille 14 pourront etre enre- gistrees automatiquement par tout mAca- .nisme approprie. Dans ce cas, an pourra pre- v oir un compteur actionn6 automatiquement ä chaque operation indiquant ainsi 1e vo- lume de la mati6re mesuree. The weight and density measurements indicated by the needle 14 can be recorded automatically by any appropriate mechanism. In this case, a counter actuated automatically at each operation could be provided, thus indicating the volume of the material measured.

Des modifications de dAtail pourraient RTI ID="0003.0274" WI="6" HE="4" LX="1058" LY="602"> etre apportees. Par exemple, 1e contrepoids 22 pourra etre remplaoe par un ressort. D'autre Part, la masse mobile 8 pourra etre supprimee et remplacee par 1e contrepoids 6 lui-meme qui serait rendu mobile et pourrait se deplacer our ses fleaux. Dans certains cas, cette masse 8 pourrait etre divisee en plu- sieurs elements agissant simultanement sur autant de bras 7. Detail changes may RTI ID="0003.0274" WI="6" HE="4" LX="1058" LY="602"> be made. For example, the first counterweight 22 could be replaced by a spring. On the other hand, the mobile mass 8 can be removed and replaced by the first counterweight 6 itself which would be made mobile and could move for its beams. In some cases, this mass 8 could be divided into several elements acting simultaneously on as many arms 7.

LTne variante repräsentee par los fig. 3 et 4 permet de simplifier la construction et d'augmenter la precision de 1'appareil. Dans cette variante, la masse coulissante 8 montee sur 1e bras 7 Jans la forme d'execution mon- tree par los fig. 1 et 2 est remplaoee par une masse auxiliaire 8a fixee aux extremites de deux brass paralleles 7a munis chacun dune coulisse '6O formant rampe, ces bras pivotant chacun sur un axe 61 solidaire du bäti 1 de 1'appareil. Danss los coulisses 60 des bras 7a 6ont engages librement des galets 62 Portes par 1'extremite des fleaux piincipaux 2. Tant quo la benne 5 est en cours de rem- plissage, los braas 7a occupent la Position representee sur la fig. 3, dans laquelle los galets 62 se trouvent,Jans 1e fond de la cou- lisse 60 et la masse 8a exerce son action maximum :sur los fleaux principaux. The variant represented by figs. 3 and 4 makes it possible to simplify the construction and to increase the precision of the device. In this variant, the sliding mass 8 mounted on the first arm 7 in the form of execution shown by fig. 1 and 2 is replaced by an auxiliary mass 8a fixed to the ends of two parallel arms 7a each provided with a slide '6O forming a ramp, these arms each pivoting on an axis 61 integral with the frame 1 of the device. Danss los slides 60 of the arms 7a 6ont freely engaged rollers 62 Doors by 1'extremite main beams 2. As quo the bucket 5 is being filled, los braas 7a occupy the position represented in fig. 3, in which the rollers 62 are located, Jans the first bottom of the slide 60 and the mass 8a exerts its maximum action: on the main beams.

Lorsque 1e rempli6sage est termine et quo 1e mouvement de descente de la benne s'opere, los extremit4s des fleaux principaux 2 se soulevent et leurs galets, se deplagant Jans los coulisses 60, font pivoter los bras 7a autour de leurs axes 61. Ces brass viennent reposer sur une butAe 1' et la masse 8a occupe alo.rs la Position representee sur la fig. 4, oü elle n'exerce plus aucune action sur 1'ex- tr6mite des fleaux, los galets 62 se trouvant libres dans leur coulisse. La banne 5 peut ainsi se separer de la tr4mie compensatrice et descendre Beule pour venir agir sur 1e dis- positif .de pesee. When the 1st filling is finished and the 1st lowering movement of the bucket takes place, the ends of the main beams 2 rise and their rollers, moving in the slides 60, cause the arms 7a to pivot around their axes 61. These arms come to rest on a butAe 1 'and the mass 8a occupies the position alo.rs represented in FIG. 4, where it no longer exerts any action on the end of the beams, the rollers 62 being free in their slides. The awning 5 can thus separate from the compensating hopper and descend Beule to come and act on the weighing device.

Apres pesee et vidange de la banne, cette derniere remonte, et 1'.extr6mite des fleaux opposee ä la banne s'abaisse et ramene los bras 7a ä leur Position intiale, repr6sentee sur la fig. 3. L'appareil est alors prei ä re- commencer une nouvelle operahon. After weighing and emptying the awning, the latter rises, and the end of the beams opposite the awning lowers and brings the arms 7a back to their initial position, represented in FIG. 3. The device is now ready to begin a new operation.

Dans la variante repr6sentee par los fig. 5 et 6, 1'extr6mit6 des f1.6aux principaux 2 opposAs -ä la banne 5 comporte un bec 63 sur lequel vieret s'accrocher une masse auxi- liaire 64 munie @'a cet effet d'un cran 65 ä sa Partie superieure. Cette masse peut venir reposer sur un berceau 67 solidaire du bäti 1. In the variant represented by los fig. 5 and 6, the end of the main wires 2 opposite the awning 5 has a spout 63 on which an auxiliary mass 64 is attached, provided for this purpose with a notch 65 at its upper part. . This mass can come to rest on a cradle 67 secured to the frame 1.

Tant quo la banne r5 n'est pas remplie, 1e bec 63 des fleaux 2 est engage dann 1e Gran 65 de la masse 64 (fig. 5). Mais, lorsque la banne pleine deseend, 1'extr6mit6 sup6- rieure 64' de la masse 64 vieret en contact avec une but6e 66 solidaire du bäti 1, laquelle butee oblige 1e cran 65 ä lib6rer 1e bec 63 (fig. 6) et la masse tombe sur 1e berceau 67. La banne peut ainsi se separer de la tremie compen satrice. As long as the awning r5 is not filled, the first beak 63 of the beams 2 is engaged in the first Gran 65 of the mass 64 (FIG. 5). However, when the full awning descends, the upper end 64' of the mass 64 comes into contact with a stop 66 integral with the frame 1, which stop forces the notch 65 to release the slat 63 (FIG. 6) and the mass falls on the first cradle 67. The awning can thus separate from the compensating hopper.

Lorsque la banne vide remontera ä sa Po sition initiale, 1e bec 63 viendra ä nouveau se reenclancher dann 1e cran 65 de la masse 64 et 1'appareil Sera pret ä recommencer une nouvelle operation. When the empty awning rises to its initial position, the spout 63 will again engage in the notch 65 of the mass 64 and the device will be ready to begin a new operation.

Dans la variante reprgsentee par los fig. 7 et 8, los extremites des fteaux prineipaux opposees ä la banne portent une masse auxi- liaire en fer .doux @64 munie de galets 68. Tant quo la banne 5 n'est pas remplie, la masse 64 repose, par ses galets 68, sur los extr6mit6s 69 des f16aux 2. Lorsque la banne pleine descend, un des f16aux 2 forme 1e eircuit d'un 6lectro-aimant 70, lequel attire la masse 64 qui vieret reposer, par 1'interme- diaire de ses galets 68, sur los extremites en forme de plan incline de deux supports fixes 71. Dans cette Position, la masse 6.1 est saus action sur los fleaux et Fon obtient la separation de la banne de la tremie re- chercUee. In the variant represented by los fig. 7 and 8, the ends of the main legs opposite the awning carry an auxiliary soft iron mass @64 provided with rollers 68. As long as the awning 5 is not filled, the mass 64 rests, by its rollers 68 , on the ends 69 of the beams 2. When the full awning descends, one of the beams 2 forms the first circuit of an electromagnet 70, which attracts the mass 64 which moves and rests, via its rollers 68, on the ends in the form of an inclined plane of two fixed supports 71. In this position, the mass 6.1 is without action on the beams and Fon obtains the separation of the awning from the re- sought hopper.

Lorsque la banne remontera, 1e mouve- ment des flAaux 2 coupera 1e circuit de 1'electro-aimant 70 et, par gravite, la masse 64 reviendra dans sa Position initiale (fig. 7). When the awning rises, the movement of the flags 2 will break the circuit of the electromagnet 70 and, by gravity, the mass 64 will return to its initial position (FIG. 7).

Dans chacune des variantes d6crites ci- dessus, il y a naturellement un contrepoids agissant constamment sur los fleaux princi- paux. Il va de soi quo los dispositions ci- deseus dkrites peuvent etre invers4es, c'est-h- dire quo las mas.ses auxiliaires qui, dans los exemples ei-dessus dkrits, liberent los extre- mit6s des fleaux oppos6es ä la banne pour permettre la separation de la banne de la tremie n6cessaire ä la pes4e, pourront, au RTI ID="0004.0271" WI="15" HE="4" LX="1199" LY="872"> contraire, venir prendre appui sur 1'extremit6 des fleaux c6t6 banne. In each of the variants described above, there is naturally a counterweight constantly acting on the main beams. It goes without saying that the provisions above can be reversed, that is to say that the masses of its auxiliaries which, in the examples described above, release the ends of the beams opposite the awning to allow the separation of the awning from the hopper necessary for weighing, may, at the RTI ID="0004.0271" WI="15" HE="4" LX="1199" LY="872"> contrary, come and rest on the end of the beams on the awning side.

Claims

CLAIM: Apparatus for simultaneously determining the volume, the weight and the density of granular materials, comprising a measuring capacity formed by a slat, this slat being surmounted by a compensating hopper and supported by two main beams subjected, on the other Part, to the action of a counterweight, characterized in that it has means suitable for making the awning independent of the compensating hopper, so that, when it is full, this awning Beule can perform a downward movement during which it acts on a weighing device indicating the weight and density of the material contained in the awning, whereas when it is empty, it returns to its initial position . SUB-CLAIMS 1 Apparatus according to claim, characterized in that, in its initial position, the compensating hopper rests on the awning, this hopper kant articulated to two levers which abut against an idle counterweight when it is lowers with the awning, under the action of the weight of the material, this downward movement of the compensating hopper causing a tripping producing the closing of this compensating hopper, and the partial closing of a loading hopper, which continues to pour material from the compensating hopper until the weight of this material becomes preponderant in relation to the idle counterweight, which causes a second downward movement of the compensating hopper causing the opening a bin door which empties and returns to its initial position by bringing the compensating hopper back to its initial position, which causes the hopper closure members to be brought to their initial positions, the bin door closing after flow of the matter contained by the latter. Apparatus according to claim and 1a sub-claim 1, characterized in that the two main beams which support the bucket are integral with an arm on which can slide freely a mass which remains at the end of the opposite arm. to the bucket as long as the filling of the latter is not finished, whereas, as soon as the filling is finished and the downward movement of the compensating hopper and of the bucket takes place, the arm -supporting the movable mass tilts and said mass moves to the other extremity of this arm, in such a way that in this Position this mass acts against the action of the counterweight of the beams in order to allow the bucket to separate from the compensating hopper to accomplish Good Beule descent movement during which it acts on the weighing device. 3 Apparatus according to claim and sub-claim 1, characterized by an around axes fixed to the base. of the apparatus and auxiliary mass fixed on pivoting arms each provided with a slide forming a ramp, rollers carried by the ends of the main beams each engaging in the slide of one of the arms, the latter being established in such a way way that as long as the bucket is not filled, the auxiliary mass exerts a good maximum effect on the end of the beams opposite the bucket, but that, when the filled bucket descends, the said arms pivot on their axes and come to rest. can take a position in which said mass and without action on the beams, in order to allow the bucket to separate from the compensating hopper. 4 Apparatus according to claim and sub-claim 1, characterized by an auxiliary mass arranged so as to remain attached to the end of the main beams opposite the <RTI ID="0005.0275" WI="10" HE=" 4" LX="1395" LY="985"> bucket, as long as the filling of the bucket is not complete, the downward movement of the bucket when it is full causing the unhooking of this mass from the extremity of the beams in order to allow the bucket to separate from the compensating hopper. 5 Apparatus according to claim and sub-claim 1, characterized by an auxiliary mass which is mounted free on the end of the main f16aux, this mass being brought, during the lowering movement of the bucket, in a position in which it does not ab t more on the beams by means of an electromagnet whose first circuit is controlled by the first movement of the bucket.