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A sliding electric gate with electric motor and backup battery in case of mains failure. Note also the Infrared obstacle sensor located on the wall to prevent the gate from closing while a vehicle or other obstacle is in the way.
If the small entrance in the door of a large gate has a high threshold, it may be called a manway. If it is a separate, narrow entrance next to the main gate, it may be called a pedestrian entrance. This type of double entrance is rather uncommon, however, and was only worth having at large sites where there was a lot of coming and going.
[1] [2] The company designs and manufactures vehicle, pedestrian and passenger access control equipment. According to the IMS research, titled "The World Market for Pedestrian Entrance Control Equipment" (2013), Automatic Systems is ranked No. 1 as speed gates supplier for Mass Transit Applications in the world and for Intrabuilding in EMEA. [3]
The operator is placed in the space above the sliding door. An electric motor, geared down to get a lower speed and a higher torque, drives a pulley at one end of a belt. The door is clamped to the belt. To open the door, the motor turns the pulley, which in turn turns the belt, which in turn drags the door. To close the door, the reverse occurs.
A wicket door is a pedestrian door built into a much larger door allowing access without requiring the opening of the larger door. Examples might be found on the ceremonial door of a cathedral or in a large vehicle door in a garage or hangar. A bifold door is a unit that has several sections, folding in pairs. Wood is the most common material ...
Slip gate pier with unusual groove shapes. Slip gate pier with notches for gate spars. Quite apart from the farmers own needs for movement of stock, machines and people between fields and access from roads, lanes etc. it was also a requirement for those using rights of way that gates and stiles whilst being stock proof do not "..present troublesome hindrances to passage." [7] The width of the ...