Resources Contact Us Home
Shaft drilling machine

Image Number 3 for United States Patent #4483403.

A shaft drilling machine has a circularly moving drilling head. The drilling head is angularly oriented with respect to the longitudinal axis of the shaft sought to be drilled. Loosened material is transported from the lower portion of the shaft by pickup means, moving with the drilling head, and taken to the upper portion of the angularly oriented bottom of the shaft, whereupon the loosened material or borings slide, by gravity, to a centrally located vertical conveyor mechanism for final removal of the material or borings from the shaft.

  Recently Added Patents
Efficient paging in a wireless communication system
Method of manufacturing pipe with branch
Packet communication system and packet communication method, and node and user device
Chemical method of making a suspension, emulsion or dispersion of pyrithione particles
Non-disruptive configuration of a virtualization controller in a data storage system
Inhibition of HRP-3 using modified oligonucleotides
Method and device for authenticating transmitted user data
  Randomly Featured Patents
Process and apparatus for rolling seamless tubes
Load condition determining apparatus
Disk drive microactuator frame with epoxy overflow reservoir
Automatic foreground lighting effects in a composited scene
DNA encoding a DNA repair protein
Realistic replication of a live performance at remote locations
Hair styling compositions containing a silicone elastomer and a non-aqueous polar solvent
Maximum volume ruggedized scintillation package
Boiling water type nuclear reactor core and operation method thereof
Rollaway oil drain pan