Vertical
Reading Microscope consists of a microscope with rack focusing adjustment,
mounted horizontally on an adjustable vertical column. The stereotyped
design of the vertical column moving through 15cm by rack & pinion is
now replaced by a superior quality vertical pillar carrying the scale with
the entire 15cm vertical lift by smooth rack & pinion, moving inside a
heavy vertical column carrying the brass Vernier. Vernier spring is loaded
for precise opposition to the scale. A guide slot and key ensure up &
down movement in the same plane. The stainless steel scale & Vernier
is machine divided to accuracy within ±0.01% or better. The horizontal
microscope tube is mounted on the vertical column and is adjustable by
smooth rack & pinion, through twin knobs on both sides. The microscope
moves on the machined inter ground guides.