Patent GB-211689-A (GB)
Title: Improvements in machines for binding sausages
IPC: A22C11/12
Filed: 1923-02-12
Abstract: 211,689. Schelling, E. Feb. 12,1923. Knot-tying devices. -In a machine for binding sausages. the filled skin A is passed through a rotatable sleeve 6 which carries a ring-shaped shuttle &, the cord 9 being caught by the shuttle, carried around the skin A, looped on itself, pulled tight and cut; the skin A then being fed forward and the operation repeated. The sleeve 6 is rotated irregularly by a slide 5 which is moved in guides by a pin 4 engaging with a camtrack in a drum 3, the sleeve 6 being toothed to engage a rack on the slide 5. In a plate 7, protruding axially from the face of the sleeve 6, the shuttle 8 is mounted and is rotated about its own axis in either direction by a cam 63, Fig. 2, lever 68, and a sleeve 67, slidable on sleave 6 and carrying a rack 69 which engages a pinion 70 and operates the shuttle through gearing 72, 73, and teeth 74 surrounding the shuttle. The shuttle has a radial slot and a spring 77 which grips the cord. The cord 9 is taken from a ball 10 and passes through eye 11, over a braking roller 12 and guide 13 and through grippers 14. 15 the parts 10 - - 15 being mounted on a carriage 22, reciprocable on a shaft 30 by the engagement of a pin 45 with a cam-track in a drum 44 revoluble on a shaft 43 by a chain 35 and sprockets. A drum 23 slides, with the carriage 22, along the feathered shaft 30 and a cam-track engages a pin 25 whereby the cord-tensioning arm 24, carrying the guide 13, is operated. An oscillating lever 86, co-operating with the shuttle to form the knot as described below, is mounted on a shaft journaled in the main frame and is operated by the engagement of a pinion 91 with a sliding rack 92 which is moved by a cam on the shaft 2. The grippers 14, 15 are mounted on a sleeve 80 and concentric shaft 81 respectively and are moved to clip or release the cord by cams 26, 27 carried by the carriage 22 along theshaft 30. The cordcutting knife 16 is slidably mounted on the gripper 14 and rests on one arm of a lever 18, pivoted on the gripper 14, which abuts.against a stop on the carriage 22. The sausage casing is supported on one arm 55 of a lever; the other end 56 abutting against an adjusting-screw 57. The casing is fed intermittently by mechanism comprising, a crank pin 42, connecting rod 41, arcuate rack 38 pivoted at 40, pinion 37, shaft 43, pinion 46 and a racked slide 47 carrying a retractable forked member 83 which engages the sausages at the contraction, moves them along and after retraction is returned for the next movement. The fork 83 is advanced and retracted by a gear 50, journaled on an arm 48 attached to the slide 47, which engages a rack 52 on the fork 83, the gear 50 having a pin which contacts with adjustable stops at the hmits of the movement of the slide 47. The machine which binds with a double loop as shown in Fig. 10, operates as follows; the cord 9, held between the pairs of grips 14, 15, is gripped, on a slight clockwise movememt of the sleeve 6, by the spring 77. The sleeve 6 then moves anticlockwise to allow the grippers 14, 15 to swing bodily out of the path of the shuttle 8. A clockwise movement of slightly more than a revolution passes the cord around the casing, the portion of the cord adjacent to the grippers then passing through the shuttle 8, which has so far been stationary relatively to the sleeve 6, the grippers 14, 15 becoming slightly tilted to allow this. The sleeve 6 then remains at rest and the shuttle revolves to twist the cord on itself, the loop being formed by the swinging lever 86. The sleeve then moves anticlockwise for a short distance, after which a complete rotation, followed by rota. tion of the shuttle and operation of the lever 86, forms the second loop. The grippers 14, 15 are then moved against the casing, moving the loops which are tightened by the lever 24, after which the grippers 14, 15 move slightly further into the contraction formed in the casing and the knife 16 cuts the cord. The grippers 14, 15 return, the casing is fed forward and the operation repeated.