A Crosshead
B Elevating gear
C Socket
D Arm, crosshead
F Screw, clamp checking traverse
G Tumbler, elevating gear
H Bolt, jamming elevating gear
J Front legs
K Rear leg
M Shoes
N Socket lugs
S Stud, joints, a jamming handle, front legs
T Joint pin, a jamming handle rear leg
V Handwheel elevating gear