ES467398A2 - Machine for washing and spin-drying laundry - Google Patents

Abstract

Improvements introduced in the object of the main patent no. 458,741, or in an improved machine to wash and dry the clothes according to the claim of the main patent application, which has the driving of its electric motor to ensure washing and drying of the clothes, a control system in which a first and a second contact of a programmer with at least four contacts are mounted in series, respectively, with contacts of low and high level of a pressure switch, then joined, respectively, to the two inputs of a bistable system logic switch, a third contact of this programmer is mounted in parallel, with this pair of "first contact of the programmer and pressure switch contact low level in series", and a fourth contact and these first three contacts of said programmer have, at one of their ends, a common point, linked to a power supply network, characterized in that, in the aforementioned control system, a speed control assembly v of the laundry drum, with four inputs at least (e1 to e4), corresponding, respectively, to four speeds v of said drum, comprises, in combination: the input e1, electrically connected to the junction point downstream of this group of three contacts, comprising the "first and third contacts of the programmer" and the "low pressure switch contact"; the input e2 connected to a logic circuit, which operates with two inputs under voltage, one of which is connected to the same junction point downstream of said group, of three contacts, and the second is connected to a point downstream of this pair of two contacts in series, comprising the "second programmer contact" and the "high level pressure switch contact"; the input e3 is connected, through a speed increasing ramp generator system, to a three-input logic circuit, which operates with two inputs under voltage and one input without voltage, and the first being connected to the junction point waters downstream of said group of three contacts, the second is connected to the downstream point of said pair of two contacts in series, and the third is connected to a "q output" of the tilter 12, the complemented output q of the latter not being used; the input e4 is connected to a logic circuit, which operates with three inputs under voltage, the first of which is connected to the junction point downstream of the said group of three contacts, the second with the "output q" of the jogger 12, and the third with a point downstream of this fourth "programmer contact". (Machine-translation by Google Translate, not legally binding)