Spherometer
Spherometer for the accurate measurement of the radius of curvature of spherical lenses.
Made of brass with a vertical scale of 10-0-10mm.
A micrometre scale with 100 divisions
Both sides metric or one side metric and other in feet-inches Fiber glass with PVC covering.
Non-conducting, waterproof, washable, and water-resistant.
Case made of zinc-coated steel sheet, covered with vinyl, & fitted with a flush winding handle.
all metal fittings are chrome-plated.
The Tape Measures are provided in size 5 meters, 10 meters, 15 meters, 20 meters, 25 meters, 30 meters.
Screw Gauge Micrometer Demonstration
• About 200 mm long, made of aluminum.
• Black spray painted individually packed.
• Measurements are approximate
Spherometer Laboratory
• Brass dial head 40 mm diameter, mounted on stainless steel screw.
• Head divided into 100 divisions, reading to 0.01 mm and registering on vertical scale 10-0-10.
• Frame with three legs of stainless steel.
• Distance between two legs is 40 mm approximately.
• Pitch 1mm.
Polished brass, in hardwood case with hinged lid.
Divided compartment with dust cover holds nickel-silver and aluminum fractions.
With chrome plated brass forceps.
Capacity 1 mg to 100gm.
Capacity 1 mg to 200gm.
Capacity 1 mg to 500gm.
Capacity 1 mg to 1000gm.
Capacity 1 mg to 2000gm.
Plastic, tubular Newton spring balances.
Each range is colour coded for convenience and is graduated in both grams and Newtons.
The spring mechanism is clearly visible and zero adjustment is incorporated.
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