| 摘要 |
A combination level has a rectangular housing and liquid-filled vials each having an entrained gas bubble to indicate horizontal level and vertical plumb at a local location. A scope element is incorporated within the housing and utilized to ascertain level at a remote location. A lens system within the scope element allows the user to focus the image and cooperates with the horizontally disposed vial to indicate level at a distance. Alternatively, a sighting bead is incorporated into a sighting groove on the top of the housing to viewably align an object at a distance. A flip-out mirror assembly associated with a horizontally disposed vial allows the user to evaluate the horizontal level at a remote location through cooperation with the sighting bead. A recess with fixed bearings allows the housing to be mounted on a makeshift stand. The recess is tapered to promote a snug fit between the housing and the stand while the bearings on the surface allow the housing to swivel about the stand through a full range of 360 degrees.
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