safety stop


Definition of safety stop

: any of various devices to stop an undesirable motion or action: such as
a : an attachment for an elevator to prevent accidental falling
b : a device that closes a supply valve and stops an engine in case of accident to the governor belt
c : a contrivance to prevent a pulley tackle from overhauling
d : a device in a lathe to prevent a carriage from colliding with the headstock
e : a system for stopping trains automatically if they try to pass a stop signal
f : a stop motion for textile machinery

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of or relating to a parable or parabola

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