Revolving doors were designed to relieve stack effect pressure in buildings.
Revolving door locking mechanism.
Various security options including detection and prevention of unauthorized access in automatic revolving doors card reader access and sliding dead bolt locks ideal for high security areas such as banks and office buildings.
Permitted doors are manual revolving doors that don t use any type of door wing locking mechanism during operation automatic and security revolving doors are excluded from this category.
A concealed mechanism to collapse revolving door wings for emergency egress.
Built with a center point design the clearflow is ideal for accentuating the inner beauty of a building and is a good alternative to an automatic all glass system.
A version of revolving doors is used in factory and subway environments where the leaves of the door are made from horizontal pipes that interleaf with a barrier to allow entry in only.
They can be calculated to allow up to 50 people to evacuate per door.
For protection against unintended bookfolding the patented crane bookfold lock mechanism.
A revolving door including a plurality of door leaves extending radially outwardly from a center shaft in angularly spaced positions.
The beauty of crane manual and automatic revolving doors can be found in buildings worldwide.
Latch and lock mechanism for lockers etc.
On every crane door is our bookfold mechanism that meets ansi 156 27 nfpa 101 life safety and international building codes.
The door also includes upper and lower collapsing mechanisms which are adapted to normally maintain the door leaves in their radial positions.
Revolving doors are energy efficient as they acting as an airlock prevent drafts thus decreasing the loss of heating or cooling for the building.
Crane revolving doors are available in hundreds of configurations for virtually any entrance.
A revolving door typically consists of three or four doors that hang on a central shaft and rotate around a vertical axis within a cylindrical enclosure.
Those doors use a braking mechanism to prevent opposite flow then the door automatically revolves backwards to allow the offender to exit from the entry side.
Door hardware door closer multi point door locks electric strikes door hinges locking systems mechanical locking systems electronic thresholds installation material automatic entrance systems sliding doors revolving doors swing door drives controlled physical access all glass sliding walls.
Us1963881a independent wing locking device for revolving doors google patents independent wing locking device for revolving doors download pdf info publication number.
The door leaves are mounted in a door opening for rotation about said center shaft by upper and lower bearing means.
