Patent GB-331645-A (GB)
Title: Improvements in domestic washing, wringing and mangling machines
IPC: D06F45/00
Filed: 1929-05-18
Abstract: 331,645. Hanson, E. May 18, 1929. Washing-machines with rotary stirrers; attaching mangles and wringers to supports; driving- gear and pressure and rollerseparating arrangements for mangles and wringers.-The mangle and wringer rollers are carried upon a supporting member 7, Fig. 2, and the driving gear therefor and for the dolly of the washer is carried on a second member 4 which is arranged at right-angles to the first so that the two members extend along two sides of the top of a substantially square wash-tub 2. Pressure is applied to the rollers by means of a spring 12 at each side of the mangle or wringer, each spring encircling a rod 11, Fig. 3, which is hooked to a rod 10 depending from an arm 9 pivoted to the machine and carrying the bearings of the upper roller 6. The uper end of each spring bears against a lever 13 pivoted at 13<a> to the frame and having a hook 13<b> by which it is latched in pressure-applying position by a bar 15 mounted on the machine frame so as to be slidable in a direction transverse to the rollers. The levers 13 are unlocked to release the pressure on the rollers by withdrawing the bar 15 from the hooks 13<b> by raising a lever 19 about its pivot 19<a>, the lever having a cranked end which passes through the bar 15. The levers 13 may be locked to re-apply the pressure by depressing levers 14 secured thereto until the hooks 13b engage under the bar 15. The pivot 19<a> is carried by a slidable bar 29 so that by swinging the lever 19, Fig. 2, in a plane at right-angles to that in which it is moved to release the pressure between the rollers, the bar 29 is caused to slide so as to operate a fork lever 27 to engage or, as shown in Fig. 2, disengage, a dog clutch 28 slidable on and keyed to the shaft of the lower roller and a sprocket wheel 26 loose thereon. The sprocket wheel 26 is secured to the hub of a worm-wheel 25 driven from a motor 20 through a centrifugal friction clutch 21, shaft 22, spring coupling 23 and shaft 24. The sprocket wheel 26 drives another sprocket wheel 31 supported in bearings in the machine frame for operating the dolly shaft 38<b>. The sprocket wheel 31 is secured to a bowl-shaped member 32, Fig. 8, having a radial rib which is divided into two parts 32<a>, 32b, Fig. 7, by an annular rib 32<c>, Figs. 7 and 8. A lever 33, Fig. 8, supported in an eye 34 formed on a rod 34<a> passing axially through the hub of the member 32 is pivoted to a cross pin 36<a>, Fig. 2, pivoted on a horizontal axis to a quadrant 36 which engages a pinion 38<a> on the dolly shaft and is pivoted on a vertical axis to the lid 40 of the washer. The other end of the lever is placed by the operator in one of the two tracks defined by the annular rib 32<c> in the bowl-shaped member 32, Fig. 8, and is rotated by the engagement of the corresponding rib 32<a> or 32<b> therewith. According to whether the lever is placed in the inner or outer track, so the quadrant is rocked in a horizontal plane through a comparatively small or large angle respectively. Movement of the lever from one track to the other is controlled by the operator by raising the lid 40 about its pivots a, b, Fig. 2. and then, by means of the knob 35, Fig. 8, sliding the rod 34a to the left or right so that, on lowering the lid, the end of the lever will rest in the desired groove. The lid is counterbalanced by a spring 41, Fig. 2.