Gupta Agencies

Compact versatile and multipurpose slide projector having a good design and rigid construction.Equipped with 24V/150 watts halogen bulb and hard coated anastimatic lenses 1:2:8/85 mm. It has rigid fibre body and efficient cooling system. Supplied compelete with accessories for projection of 35mm film strips, 5x5 cm Kodachrome slides.

For determining the pressure exerted by the sap flowing from a stem stump. Manometer graduated 0 to 200 x 1mm, for attachment by means of rubber tube or tape to the cut stem of a plant growing vigorously in wet soil.

Short triangular beam, with rider scale. The beam supports are extended and relieve the agate knife edges when at rest. Pillar is highly finished and removable pans are suspended by stirrups from double hooks. The balance is mounted in a polished wooden case, fully glazed. Complete with rider slide, levelling screws. Capacity 200 gm, sensitivity 0.1 mg.

Nickel plated burner tube of brass 12 mm. diameter with air regulator adjustable and a cylindrical riffled connector, mounted on an painted metal base.

Suitable for Natural gas, Brass Tube 100 x 12 mm, height x diameter. Base 70mm diameter. Overall height 145 mm.

Solid superior quality rubber resistance to acid, alkali and ammonia, suitble for schools, colleges and universities.
AVAILABLE IN DIFFERENT SIZES,RANGING FROM BOTTOM DIA 9MM-51 MM,ALSO AVAILABLE IN SINGLE AND DOUBLE HOLES.

The relationship between the intrinsic viscosity of a polymer solution and the relative molecular mass of the polymer allows this apparatus to be used for quantitative determination of relative molecular mass.

Comprises glass U-tube with two bulbs,connected by a capillary tube approximately 120 * 1 mm length * internal diameter. Overall height 237 mm.

Pipette type, comprising glass float calibrated having coloured zones for charged, partly charged and uncharged conditions. Compressible bulb and rubber tube with fittings to glass body.

A: Comprising a stout metal box, 100mm diameter, with aluminium dial graduated in degrees 0-90 four times, anti-parallex mirror slot made by bakelite. B: As above, but made of bakelite/metal case, mounted on wooden base with meter scale.

A horizontal frame is mounted on a rod fitted to a base & carries a steel wire stretched across it, the tension of which can be adjusted by a tightening screw. A light weight metal pointer with a counterpoise is attached to the centre of the wire by a clamp. A pan is hung from a notch in the pointer and has a hook at its underside from which can be suspended a light weight rectangular frame or a metal clip to hold a microslide edge. The tip of the pointer moves over a graduated scale. With rectangular wire frame, slide clip, six microslides & 3 metres of spare wire.

For demonstrating the movement of progressive transverse waves. Comprises 22 small balls on wire rods, with eccentric motion attachment, with driving handle and fitted on polished wooden base.

The two plates are supported in two rigid uprights and driven by belt in opposite direction. They are heavy, high resistance plastic with sectors of aluminium sheet. Two leyden jars (condensers) made from corning glass and aluminium foil. The whole is mounted on a wooden base nicely polished.