Hydraulic Control OPENS Garage Door (Nov, 1931)
Hydraulic Control OPENS Garage Door
OPERATED from ordinary water pipes with pressure furnished by a simple pipe attachment, an inexpensive new device for opening and closing garage doors from the driver’s seat of the automobile proves a great convenience to motorists. It will open or close, lock or unlock garage doors without the driver’s leaving the machine.
A simple and easily-handled hydraulic device, consisting of two valves, one valve with lock and key, is placed in a convenient location on the edge of the driveway where it is within easy reach of the driver’s arm. The other valve is placed inside the garage. Either valve opens and closes the doors.