GB448691A - Mechanism for filling a bag-like receptacle with a substance such as tea or coffee - Google Patents

Abstract

448,691. Hoppers. HIRSCHHORN, L., and IRMSCHER, H., 288, Southern Boulevard, Bronx, New York, U.S.A. Oct. 11, 1934, No. 29102. [Class 78 (i)] [See also Group XVIII] Apparatus for filling bags or the like with measured quantities of fluent material such as tea or coffee comprises a main receptacle or hopper 22, a measuring device 25 and means 23, 24 in which a predetermined quantity of material is maintained, for directing the material from the receptacle into the measuring device. The apparatus is supported on a frame 20, Fig. 1, within which a power shaft 21 is journalled. Material in the hopper 22 is agitated by a stirrer 28, Fig. 2, driven by a ratchet wheel 30 actuated by a pawl 31 mounted on a bell-crank lever 32 connected bv a link 35 to a lever 36 rocked by an arm 39 having at one end a roller which engages a cam 41 mounted on the shaft 21. Material is fed from the hopper 22 to the directing means comprising an intermediate hopper 23 and a flexible channel 24 by an endless belt conveyer 44 driven from a ratchet wheel 46<1>, Fig. 4, which is held from backward rotation by a pawl 47 and driven forwardly by a pawl 48. In order to keep a certain amount of material within the hopper 23, the pawl 48 is adjusted relatively to the ratchet by means of a link 51 and a member 52 which passes through a flange 55 on a measuring rod 56. By means of another flange 57 engaged by an oscillating arm 85, driven from the cam 41 the rod is repeatedly raised and allowed to fall back on to the surface of the material in the hopper 23. A toothed wheel 64 and a vertically oscillating plate 59 serve to prevent clogging of the material at the discharge end of the belt 44. The lower converging walls of the hopper 23 are provided on one side with a slidable bar 58 actuated through a link 78 from a cam 83 on the shaft 21 and on the other side with a swinging bar 70 operated from the arm 39 by links 71 and 73 and provided with an arcuate extension 72 adapted to close the hopper outlet when the bar swings upwardly into the hopper. The flexible channel 24 is anchored at its ends and intermediately is shaken by a reciprocating frame actuated through a link 99 from a cam 105 on the shaft 21. From the channel 24 the substance falls into the measuring apparatus proper which comprises a disc 25 with diametrically opposed recesses forming measuring chambers.