Safety system for a manufacturing machine provided with at least one tool
which can injure the operator, comprising a pair of gloves to be worn by the operator
and provided with an outer surface of dielectric material and an electrically conductive
inner surface; an alarm signal generator connected to the conductive inner surface;
a processor unit connected to the metal machine members and to the at least one
tool via a safety circuit arranged to sense the alarm signal when the operator
cuts one of the gloves on coming into contact with one of the mechanical members
of the machine, the processor unit being provided with circuitry for interrupting
machine operation on sensing said alarm signal, in which the alarm signal is an
alternating current signal the intensity of which is established by the processor
unit on the basis at least of at least one of the physical characteristics of the
operator, e.g. the electrical conductivity, as measured by a suitable circuit for
determining at least this characteristic.