Dieter Graesslin Feinwerktechnik

Peter Schonhardt

Dieter Graesslin

Wolfgang Haas

A switch programming mechanism is afforded by means of an endless switch chain. The switch chain is provided with switch riders or triggers serving as mechanical abutments for the actuation of the switch. The switch chain may be formed with tooth elements having truncated inner ends and being axially displaceable on their interconnection means relative to one another. The switch chain is particularly well suited for fitting within the confines of a ordinal-display switch clock and for controlling the operation thereof.

Switch chain with switch riders for switch clocks

A time switching device for controlling dependent devices wherein the time switch device consists of at least two time switch assemblies, the device being provided with a common electric power inlet connector and each of the assemblies being provided with at least one assembly controlled power output connector whereby two or more dependent devices can be controlled from a single electric source.

Time switching device

A miniature timer device having a housing divided into a plurality of chambers for housing a reduction gear system, a motor and an electrical contact system and wherein bearing means for support of these items are formed integrally with the housing structure.

Growing community of inventors

St. Georgen, Germany

Peter Schonhardt