with axial screw-and-nut, rack-and-worm, or like mechanism

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Props; Chocks > Telescopic props > with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure > with axial screw-and-nut, rack-and-worm, or like mechanism

CPC:

Props (in the building art E04G25/00); Chocks > Telescopic props (general means for fixing telescopic parts together ) > with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure > with axial screw-and-nut, rack-and-worm, or like mechanism

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

Navigate with arrow keys, Enter to open

E21D 15/26 with screw, worm, or the like, not self-locking but normally prevented from rotation by friction members which slip upon excessive pressure IPC+CPC Available in IPC and CPC