Mercury for experiments packed in plastic bottle 500gms
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Two glass tubes 220mm long x 8mm bore one closed at the top and other open. Lower ends of two glass tubes are joined by 1 meter of pressure tubing. Both tubes mounted on sliding brackets lockable in any position on metal support rods. Polished wooden stand with graduated scale 0-100 cms, with mms in centre and figured every cm on either side. Supplied without mercury.
A) For light liquids calibrated at 20C. Combined scale range 70 – 10 & 700 bv- 1000. B) For heavy liquids, calibrated at 20C; combined scale 1.000 to 2.000 & 0.70.
Un-mounted glass tube, limbs with a third short limb for connecting a suction tube
A working model to demonstrate the principles involved in the action of a force-pump.
Cylinder is 25 x 350 mm dia x overall height. It is provided with a non-return float valve at its lower end. Lower part of the cylinder has an outlet side tube communicating with the lower end of another cylinder also equipped with non-return valve. Outlet tube from the secondary cylinder is drawn out into a jet to demonstrate ability of force pump to eject water at high pressure.
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