Foundry drawing2

Casting | OT: Sandbox YAK
Foundry drawing2

bpfink's picture

Foundry drawing 2

bpfink  This shows the system from the side.The dummy post allows a circular pattern and has an up or down slider with another pipe which the main tong pipe end can slide in or out while extending with three pipes inside each other.A casement window extension spring pulls them back together as needed. All weight is held by the overhead bridge crane electric hoist.