Rotary index information insert for use on hotel doors can be turned from the inside to display information to hotel staff.

摘要

The information display unit is installed in such as a hotel room door. It has a disc [8] on the inside and one on the outside with a viewing cut out sector [10]. Between these on a centre spindle [4] are discs [2,3] with specific information, eg room occupied that can be read by hotel staff. The discs are turned by an internal knob [13].