Bommer double acting mortise type spring hinges permit doors to open in either direction and automatically return to the closed position. Provides maximum protection for doors subject to normal abuse of lift trucks, due to resiliency of spring support and shock absorbing reaction of flexible mounting. Adjustable spring tension permits power and speed adjustment.
Door flange is mortised into edge of door
Jamb flange is surface applied jamb
Not for use on doors with beveled hinge edge