Weft stop motion: These motions stop the loom immediately in the event of weft breakage or weft running out.
There are 2 types of weft stop motions.
Side weft fork motion
Centre weft fork motion
Warp stop motion: These motions stop the loom immediately in the event of warp breakage.
There are 3 types of warp stop motion.
Mechanical
Electrical
Electro mechanical
Warp protector motion: These motions protect the warp in the event of shuttle trap which may be due to over picking. The mechanism will prevent mass breakage.
There are 2 types of warp protector motion.
Loose reed motion
Fast reed motion