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1191. Wet
and Dry Thermometer
Also called as wet and dry bulb hygrometer. Do uble scale wall
mounting, gIass thermometer mercury filled, range-10 to+50 x 0.5°Cand
20 to 120 x 1°F on polished engraved scale in metal frame with
plastic reservoir. Complete with wick. |
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1192. Wall thermometer, double scale
Range-20 to t50x1°C and 0 to 120°F x 2°F, red spirit filled Mounted
on wooden polished base. |
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Geographical Apparatus
1193. High Grade Orrery or Season Apparatus
Highly advanced & high grade model worked by a powerful 220
volts electric motor which keeps the whole app. working, with
electric bulb arrangement, nicely finished. It illustrates:
i) Revolution of the earth.
ii) Parallelism of the earth axis.
iii) Movement of the sun through zodiac.
iv) Four seasons.
v) Demarcation of zones.
vi) Six monthly day and night at the poles.
vii) Eclipses and various other geographical
phenomena can be exhibited. |
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1194. Four Globe Apparatus or Orrery
Metallic construction having gear mechanism driven by single handle.
4 globes revolve round the central sun and facilitate the
comparative study of earth in four different positions. |
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1195. Four Globe App. or
Orrery :
Same as above but with candle stick arrangement. |
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1196. Season
Apparatus or four. Globe App.
Metallic construction hand driven with out side handle. |
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1197.
Solar & Lunar Eclipse App.
On beautiful hammertone painted base. The earth with" it's axis
inclined and always pointing the same direction revolving round the
sun, and the moon revolving round the earth. |
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1198. Solar &
lunar Eclipse App.
Same as above fitted on heavy metal base, with electric bulb
arrangement, hand driven, nicely finished. |
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1199.
Apparatus to show Phases of the Moon Comprising an eliptical
plane, the central globe representing the earth, small globe
represents the Moon in 8 positions and 8 round discs carefully
painted to represent its phases. |
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1200.
Apparatus to show Phases of the moon
Same as above but driven with single side handle heavy pattern. |
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1201. Apparatus to show phases
of the Moon
Same as items No. 1199 but with electric bulb arrangement to
represent the sun. |
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1202. Season
Apparatus-cum Phases of the Moon-cum Solar and lunar
Eclipse. It illustrates phases of the Moon and all the phenomena of
season apparatus and solar lunar eclipse as per Item No. 1198. A
separate attachment of phases of Moon is given to be fitted in the
centre to show the phases of Moon
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