VERNIER MICROSCOPE (TRAVELING MICROSCOPE) 1070
Horizontal and vertical scales of stainless steel. The cast iron base is fitted
with leveling screws with the top duly machined over which slides a metal carriage.
Slide can be clamped at any position by means of clamping screw. Fine adjustment
for final reading is with a micrometer screw. A vertical slide operating in a
similar way is fitted on the horizontal carriage. The microscope with rack and
pinion is fitted on this vertical carriage and can be clamped in a vertical or
horizontal position. Stage for placing objects for measurement is fitted with
perspex plate. Achromatic lenses have been used. Slides travel 165 mm horizontally
and 140mm vertically. Scales are accurately divided. Vernier reading 0.02 or
0.001mm. The unit is packed in wooden polished case.
VERNIER MICROSCOPE, COORDINATE 1072
With horizontal and vertical scale both reading to 0.001mm. Horizontal scale
0 to 170 x 0.05 mm and 0 to 100 x 0.5mm vertical scale, both of which can
be easily read to 0.001 using the double length vernier. A coarse adjustment
and a fine adjustment covering 10mm. of movement are fitted to both the vertical
and horizontal movement. The microscope body may be rotated through 180º and
the draw tube extended to enable the telescope objective accessory to be
fitted.
Overall dimensions: 295 x 185 x 300mm. high.
Supplied in wood case.
MICROSCOPE STANDARD 1073
In this microscope a dovetailed cast iron carriage slides on a heavy cast iron
base. In the carriage a locking arrangement is provided to rest coarse motion
when fine motion screw is used. By successively locking and unlocking, motion
in the total traverse can be provided by the slow motion screw. Two reamed
holes are provided with clamping screws to hold the microscope in either
vertical or horizontal plane.
Horizontal movement 160mm. Vertical movement can be kept vertically.
Least Count 0.01mm, Working distance 50mm.
Eyepiece 10X Ramsden, 90º cross line reticle, Objective 30X of FL 15mm.
Total magnification 30X.
Supplied in wooden case.
NEWTON'S RING MICROSCOPE 1074
This is a compact instrument with full arrangement for conducting Newton's
Ring experiments. A standard microscope with 30X magnification is provided
with a rotatable cross-line and the eye piece can be focused at the individuals
requirements. The microscope tube unit can be raised or lowered and clamped
at any desired position. The focusing of the microscope is through Rack and
Pinion. The longitudinal movement of the microscope saddle for the purpose
of measurement of the rings is done by rotating the drum provided. The 26mm
movement can be read by the scale and divided drum to 0.001cm. This set consists
of one optical flat glass and one plano-convex lens (100mm radius) arranged
inside a metal case resting over the stage of the instrument which is adjustable
for the alignment of the measuring line. The condenser lens is provided infront
of the reflector. In case the ring set is removed from the stage, the instrument
can be used as a simple compact measuring microscope. The whole instrument
is supplied in a box.
READING TELESCOPE 1075
The Telescope itself is fitted with an achromatic objective of focal length178mm
with clear aperture of 23mm and 8X Ramsden eye piece with a 90º cross
line reticle.
The focusing is done by rack and pinion mechanism, with a range from 1000mm
to infinity. The arrangement is mounted on a steel pillar and fitted on a heavy
cast iron base.
STANDARD READING TELESCOPE WITH SCALE 1076
The telescope is mounted on a specially designed carriage with support ring
to stop abrupt falling. The carriage is fitted with two adjustable screws
for precise vertical and horizontal positioning.
This arrangement is mounted on a 25mm dia, 450mm. long steel pillar, fitted
on a cast iron base with leveling screws.
A scale holder is provided with scale.
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