E21C 25/00 Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam (dislodging machines with slitting means E21C27/02, E21C27/10, E21C27/18)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
CPC: Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam (dislodging machines with slitting means E21C27/02, E21C27/10, E21C27/18)
Full Title
Full titles differ between systems:
Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam (dislodging machines with slitting means E21C27/02, E21C27/10, E21C27/18)
IPC and CPC are identically structured here. All 14 subcodes exist in both systems.
6 shared codes have differing titles between IPC and CPC.
Child Classifications
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- E21C 25/02 Machines slitting solely by one or more percussive tools moved through the seam IPC+CPC Available in IPC and CPC
- E21C 25/06 Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate IPC+CPC Available in IPC and CPC
- E21C 25/16 Machines slitting solely by one or more rotating saws, cutting discs, or wheels IPC+CPC Available in IPC and CPC
- E21C 25/20 Machines slitting solely by one or more reciprocating sawing implements or reciprocating cutter chains; Shaker conveyors with cutting means IPC+CPC Available in IPC and CPC
- E21C 25/22 Machines slitting solely by one or more cutter chains moving unidirectionally along jibs IPC+CPC Available in IPC and CPC
- E21C 25/52 Machines incorporating two or more of the slitting means according to groups E21C25/02, E21C25/06, E21C25/16, E21C25/20 and E21C25/22 IPC+CPC Available in IPC and CPC
- E21C 25/54 Slitting by unguided cutter cables or cutter chains, or by unguided tools drawn along the working face by cables or the like (dislodging by planing means E21C27/32; propulsion by haulage cables E21C29/14) IPC+CPC Available in IPC and CPC
- E21C 25/56 Slitting by cutter cables or cutter chains or by tools drawn along the working face by cables or the like, in each case guided parallel to the face, e.g. by a conveyor or by a guide parallel to a conveyor (pressing the conveyor equipped with tools toward the working face E21C35/14) IPC+CPC Available in IPC and CPC
- E21C 25/60 Slitting by jets of water or other liquid (picks with arrangement of fluid-spraying nozzles E21C35/187; distribution of spraying fluids in rotating cutter-heads E21C35/23) IPC+CPC Available in IPC and CPC
- E21C 25/62 Machines for making slits approximately perpendicular to the seams either level with, or above or below the level of, the machine IPC+CPC Available in IPC and CPC
- E21C 25/64 Slitting machines guided solely by hand and either carried by hand or mounted on supports (hand-held power-operated tools E21C37/22) IPC+CPC Available in IPC and CPC
- E21C 25/66 Machines for making slits with additional arrangements for drilling IPC+CPC Available in IPC and CPC
- E21C 25/68 Machines for making slits combined with equipment for removing, e.g. by loading, material won by other means (slitting machines combined with planing means E21C27/18; removing chippings E21C35/20) IPC+CPC Available in IPC and CPC