It is designed for use in the vertical
and horizontal planes. The vertical guide bar is made of brass
metal. It rotates on ball centres having bearings and can
be clamped in any position. The cast iron frame supporting
the vertical guide bar is fitted with leveling screws. Range
100 cms. The scale is divide into ½ mm. Vernier reads
to .02 or .01mm. Graduation is done on high class dividing
engine and guaranteed accurate.
Sliding Carriage: Is made of brass metal geometrically constructed
and so designed that slipping and lateral play have been avoided.
It's motion is tested for uniformity and straightness. The
Telescope: Is fitted with best quality Achromatic objectives
of 175mm focus and of ample light gathering power 10X Ramsden
Eye piece and cross line graticule with rack and pinion focusing
range from one meter to infinity. There is no displacement
of optical axis during focus. A sensitive spirit level is
fitted above the telescope and is leveled by screw.