Abstract: The invention relates to an analogical control of a typewriting machine, for use by handicapped persons which comprises a linear display comprising as many positions as there are characters or functions to be printed or controlled, each character or function being associated with a utilization circuit, and which comprises further a variable speed scanning device of said display in order to select a desired character or function; the stopping of the scanning on a given position causing the energization of the corresponding utilization circuit.

Abstract: This invention relates to an automatic apparatus for the measurement of the arterial pressure which comprises, within a casing, an ultrasonic emitter-receiver as well as a piezo-electric pressure detector. This casing houses also a measuring chamber partly limited at least by a supple and deformable wall intended to enter into contact with the patient.

Abstract: The invention relates to an actuating device for an invalid of at least one electrical control circuit of an apparatus comprising a source of a fluid with a constant flow which is feeding at least a pipe with an open end and a branch, said branch feeding a pressure detector which controls, when said open end is closed, the switching on or switching off of an utilization circuit.

Abstract: The invention relates to detecting or control devices for the control of utilization circuits particularly by handicapped persons who can move only their jaws. By squeezing action of the mouth, signal lines in a pressurized fluid deformable control member are selectively controlled to perform needed control functions.This device comprises a control member of a resiliently deformable material which comprises a central reinforced, non squeezable, passage and non reinforced radial passages.The central passage and the radial passages are connected together at one end of the control member. At the other end of the control member the central passage is connected to a supply unit and the radial passages to a measuring unit by means of flexible tubular connections. A continuous signal is fed in the central passage and the intensity of the return signals in the radial passages depends on the mechanical deformation of the control member.

Abstract: This invention relates to a detecting element for a control device for invalids which detects without any physical contact the presence or the absence or even the displacement of a moving member within a sensitivity range in space, the size of the region in which this movement can be detected being large with regard to said moving member.

Abstract: This invention relates to a control device of a teletypewriter to be used by invalids, which comprises at least one control member, a synoptical board and at least one electronic part, said synoptical board comprising at least one line or column, where all the vowels are grouped, and said electronic part being made in such a way that the sign which is printed corresponds, for certain boxes of the board at least, to the combination of the consonant in the chosen box with the vowels in the same column or line of the line or column in which the vowels are grouped.