GB515889A - Improvements in washing machines and drying tumblers - Google Patents

Abstract

515,889. Drying in rotary containers; discharging. BRAITHWAITE & SON ENGINEERS, Ltd., I., and BANKS, W. June 14, 1938, No. 17603. [Class 34 (ii)] [Also in Groups XXIV and VIII] Means for controlling a drying tumbler of the type having a rotary cage driven through worm gearing E, F or through spur reduction gearing from a belt-driven shaft 1 rotated first in one direction and then in the other by open and crossed belts comprises a single operating lever T, movable to stop, inching, and running positions in a gate U. This rotates a reciprocating bar Y controlling the belts and moves it longitudinally by means of a lever A<2> thereon engaging a slot a in a fixed arcuate plate C<1>, from a position 2<1> where the belts are on loose pulleys such as A, C to a position 6 where one of them engages partially a fast pulley B or to a position 1<1> where the slot a is of sufficient width to allow the bar Y to reciprocate and where this bar engages an oscillating reversing mechanism. A slotted arm or plate projecting from the bar Y at right angles to the lever A<2> and dropping over a reciprocating finger may serve for the latter purpose. The lever T is connected to the shaft Y by an arm T<1> integral with the lever T and coupled by a link V freely rotatable on the shaft and carrying a pin slidably engaging a hole in an arm fixed to the rod Y. In the positions 6 and 1<1>, another arm on the lever T depresses, through arms N and M on a countershaft S, a push-rod H to release a brake G applied to the worm shaft in the position 2<1> by a spring K, and a roller P on the end of a third arm O of the counter-shaft S coacts with a rib Q on the sliding door so that the latter may only be opened with the lever T in the position 2<1>, which position the levers may not leave unless the door is shut. The appropriate position of the cage for unloading is indicated by arrows E<1>, E<2> thereon coacting with a mark e on a window E' in a casing. In Fig. 2 (not shown) is depicted a roller on the end of the lever A<2> to assist its movement in the slot a, and the drive between the shaft 1 and the shaft of the worm E is by bevel gears. In a modification with spur reduction gearing, a pull - rod for rotating the cam shaft of an internal expanding brake replacing the brake G is actuated by a pivoted arm engaged by a cam on the spindle of the lever T. and a second sectoral cam thereon coacts with a lug on a pivoted arm replacing the arm O.