Symbol 1494 from ISO 7000 - Title/Meaning: Clamshell bucket Function/description: To identify the control for the bucket consisting of two halves that open and close in the middle (like a clamshell) in order to grab and carry material.
Additional information: 
The symbol is viewed from the perspective of a person looking forward along the axis of the machine.
Own work using: iso.org/obp/graphics/grs/239fff6e-9792-4244-9b1b-2b6742f3808c 200.png
Vectorization:  Mrmw