Device for measuring guide alignment for mine shafts and the like
AssigneeColorado School of Mines
InventorFrancis A. Penning
Life of this patent
Estimating the term…
Abstract
A guide alignment measuring device for mine skips, cages, elevators and other conveyance systems. The device measures misalignment of one or more guides used in vertical shafts or incline shafts in various types of mining operations, elevator shafts and similar operations where materials and personnel are raised and lowered.
Claims14
A guide alignment measuring device adapted for being raised and lowered in a vertical or inclined shaft and engaging one or more guides, the device comprising:
- a housing having an instrument shelf therein;
- a first contact arm attached to the housing and engaging a reference guide;
- and
- a first inclination means received on the instrument shelf for measuring a first tilt angle of the instrument shelf from the vertical as the device is raised and lowered.
A guide alignment measuring device adapted for being raised and lowered in a vertical or inclined shaft and engaging one or more guides, the device comprising:
- a housing having an instrument shelf therein;
- a first contact arm attached at one end to the housing and having guide rollers mounted on the other end for engaging the face and sides of a reference guide;
- a second contact arm attached at one end to the housing and having guide rollers mounted on the other end for engaging the face and sides of the reference guide;
- a third contact arm attached at one end to the housing and having guide rollers mounted on the other end for engaging the face and sides of a second guide;
- a first inclination means received on the instrument shelf for measuring a first tilt angle of the instrument shelf from the vertical as the device is raised and lowered;
- and
- a second inclination means received on the instrument shelf for measuring a second tilt angle of the instrument shelf from the vertical as the device is raised and lowered.
Dependencies are inferred from the claim text.