Patent GB-859102-A (GB)
Title: Improvements relating to machines for the cooking of pancakes and like hot-plate goods
IPC: A21B5/03
Filed: 1959-02-16
Abstract: 859,102. Baking apparatus. DE JERSEY, A. L. Feb. 16, 1959. [Feb. 20, 1958], No.. 5299/59. Class 28 (1) [Also in Group XXX] Quantities of pancake batter are deposited in transverse rows on hot plates 7 carried on a conveyer and, above the hot plates, are provided a battery of blades 25 which are moved from an elevated neutral position in a direction opposite to the direction of travel of the hot plates so as to slice under the cooked underside of the pancakes and return to the neutral position, at the same time turning to deposit the pancakes uncooked sides down on the hot plates, this operation being performed on each row of pancakes. A pair of endless conveyer chains 6, supported on sprocket wheels 8 and guided on rails 4, 5. support the ends of hot plates 7 heated by banks of gas jets. Wheels 8 are carried on shafts 9 one of which is driven intermittently through a Geneva. stop wheel arrangement 15 by a main drive shaft 14 driver through gearing e.g. by an electric motor. Pancake batter is discharged,.from a hopper 2( through a line of valves 21 in measured amounts on tc each hot plate 7 in successior when it is stationary. The pancake turning assembly comprises a travelling carriage 23 consisting of a transverse tubular member in Which spindles 26 carrying blades 25 are mounted. Each spindle 26 carries a pinion 27 which engages a rack 28 which is moved to turn the blade: through 180 degrees to invert the pancakes. Rack 28 has a roller 46 at its end which en gages a channel member 47 carried on pivoted arms 48 one of which has a roller 49 engaging a cam 56 on shaft 19. Carriage 23 is pivoted to slide members 31 sliding on rails 32 connected by links 34 to levers 33 pivoted on themachineframe. One of the levers 33 carries an arm 35 with a roller 36 spring-biased into engagement with a cam 37 carried on shaft 19. A roller 38 on an arm 39 of the carriage 23 engages and traverses a slot in a pivoted lever 40 which is moved by a bell crank lever 42 with a roller 43 spring-biased into engagement with cam 44 on shaft 19. This arrangement rocks carriage 23 so that,blades 25 engage and lift the pancakes before they are turned over. If desired this mechanism may be immobilised. The discharge mechanism consists of blades 56 carried by a shaft 57 so that they describe an arc against the direction of travel of the conveyor to lift the pancakes and deposit them over backwards on to a conveyer 71, the movement being repeated for each set of pancakes. Shaft 57 is supported in housings 58 at least one of which contains a pinion on shaft 57 which engages a rack 60 which slides in: blocks 61 while the blades 56 are being downwardly inclined to engage under the pancakes. Rack 60 is then retained and the assembly moves back so that the blades 56 are moved in an arc to deposit the pancakes after which the rack is retracted. The assembly is moved by lever arms 62 mounted on a rocker shaft 63, one arm 62 carrying a'track roller 64 which engages a cam 65 on.a shaft 66 driven through gears by shaft 14. A second cam 69 on shaft 66 engages a roller 68 on an arm 67 mounted on shaft 63 to reciprocate the rack. The hot plates are cleaned by a transverse rotary brush 72 and oiled by an applicator 70A and a spreader 70B. Applicator 70A consists of an adjustable trough 74 containing the oil and associated with. a shaft 75 driven from shaft 19 and carrying a strip form brush 76 which engages the hot plate. The spreader 70B comprises a bank of rotary brushes 80 spring- loaded into contact with the hot plates.