A steel gate that upon opening or closing slides on its bearings in edge guide slots. A gate that can be opened or closed by sliding in supporting guides.
Generally 4, 5 or 6 feet in length. The gate is designed to slide along the edge of the mezzanine to allow access to the mezzanine. It can be opened either manually or electrical power.
Using or working with the hands
manual of arms: (military) a prescribed drill in handling a rifle
Of or done with the hands
a small handbook
(of a machine or device) Worked by hand, not automatically or electronically
of or relating to the hands; "manual dexterity"
A cylindrical mechanism in a brass instrument that, when depressed or turned, admits air into different sections of tubing and so extends the range of available notes
a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
control consisting of a mechanical device for controlling the flow of a fluid
device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
A device for controlling the passage of fluid through a pipe or duct, esp. an automatic device allowing movement in one direction only
A membranous fold in a hollow organ or tubular structure, such as a blood vessel or the digestive tract, that maintains the flow of the contents in one direction by closing in response to any pressure from reverse flow