A glass U tube, 15 mm dia, with one limb plain 220 mm long and other limb graduated 25 to 35 x 0.2 ml, 120 mm long terminating in a bulb 38 mm diameter, with third limb 185 x 6 mm (L x D) joined at right angles to the plane of the other two, short length of glass tubing mounted in end of wide bore plain limb with rubber bung, a piece of rubber tube and a pinch clip..
Supplied with tall form beaker 1000 ml and stirrer. 30 ml mercury is required. Supplied without mercury and without thermometer.
A glass U tube, 15 mm dia, with one limb plain 220 mm long and other limb graduated 25 to 35 x 0.2 ml, 120 mm long terminating in a bulb 38 mm diameter, with third limb 185 x 6 mm (L x D) joined at right angles to the plane of the other two, short length of glass tubing mounted in end of wide bore plain limb with rubber bung, a piece of rubber tube and a pinch clip..
Supplied with tall form beaker 1000 ml and stirrer. 30 ml mercury is required. Supplied without mercury and without thermometer.
For demonstrating the differential expansion of two metals as shown by the curvature produced when the bar is heated.
Comprising a bar of copper and the bar of iron, riveted together.
For demonstrating the differential expansion of two metals as shown by the curvature produced when the bar is heated.
Comprising a bar of copper and the bar of iron, riveted together.
Consists of a polished teakwood stand approx. 750 mm high fitted with a wooden scale reading from 0 to 60 cm x 1 mm & supporting an adjustable mercury reservoir by a metal rod.
A detachable air thermometer bulb about 70 mm diameter connected via three way stop cock to mercury tube with zero index fused inside its upper end. A metal vessel surrounding the bulb supported by detachable metal shelf mounted on insulated asbestos screen. Mounted on a teakwood stand with a deep tray which serves to catch any mercury spilled accidentally from the reservoir. Supplied complete with 1 meter of rubber pressure tubing 10 mm outer diameter & 5 mm bore for connecting the reservoir to the bulb.
Consists of a polished teakwood stand approx. 750 mm high fitted with a wooden scale reading from 0 to 60 cm x 1 mm & supporting an adjustable mercury reservoir by a metal rod.
A detachable air thermometer bulb about 70 mm diameter connected via three way stop cock to mercury tube with zero index fused inside its upper end. A metal vessel surrounding the bulb supported by detachable metal shelf mounted on insulated asbestos screen. Mounted on a teakwood stand with a deep tray which serves to catch any mercury spilled accidentally from the reservoir. Supplied complete with 1 meter of rubber pressure tubing 10 mm outer diameter & 5 mm bore for connecting the reservoir to the bulb.
For determining the specific heat of water or similar liquid. Consists of a glass tube 100 mm long with heating element (electric wire).
Two screw terminals are provided at the ends of the tube for electric supply. The horizontal tube is connected by means of rubber bungs to the inlet & outlet system. Each having a vertical expansion to accommodate the thermometer. A stream of water is made to flow through the glass tube & heated by the spiral by passing electric current. With the help of an adjustable constant boil tank, the rate of flow is kept constant. The rise in temperature of water is measured by two thermometers. The whole apparatus is mounted on a polished wooden base approx. 625 x 130 mm in size. Supplied with thermometer.
For determining the specific heat of water or similar liquid. Consists of a glass tube 100 mm long with heating element (electric wire).
Two screw terminals are provided at the ends of the tube for electric supply. The horizontal tube is connected by means of rubber bungs to the inlet & outlet system. Each having a vertical expansion to accommodate the thermometer. A stream of water is made to flow through the glass tube & heated by the spiral by passing electric current. With the help of an adjustable constant boil tank, the rate of flow is kept constant. The rise in temperature of water is measured by two thermometers. The whole apparatus is mounted on a polished wooden base approx. 625 x 130 mm in size. Supplied with thermometer.
Comprising partly evacuated having two bulbs with two sets of vane, containing at its centre a fine pivot which supports four light weight metal arms. One side of each vane is blackened; the reverse side is bright, mounted on round base.
When exposed to sunlight, the vanes rotate in opposite directions.
Comprising partly evacuated having two bulbs with two sets of vane, containing at its centre a fine pivot which supports four light weight metal arms. One side of each vane is blackened; the reverse side is bright, mounted on round base.
When exposed to sunlight, the vanes rotate in opposite directions.
Comprising partly evacuated glass bulb approx. 70 mm. diameter, containing at its centre a fine pivot which supports four light weight metal arms.
One side of each vane is blackened, the reverse side is bright. Mounted on round base
Comprising partly evacuated glass bulb approx. 70 mm. diameter, containing at its centre a fine pivot which supports four light weight metal arms.
One side of each vane is blackened, the reverse side is bright. Mounted on round base
Comprising six cylinders, diameter 16 mm. each being 100 gram approx.
One each copper , lead , brass , zinc, iron , aluminium cylinders vary in length from 5 cm. to 19 cm. and are drilled for suspension.
Comprising six cylinders, diameter 16 mm. each being 100 gram approx.
One each copper , lead , brass , zinc, iron , aluminium cylinders vary in length from 5 cm. to 19 cm. and are drilled for suspension.
One cylinder, 4 cycled and double valve system gas engine, to show operations like intake, compression, explosion, exhaust, spark and others, mounted on wooden base with spark plug and battery.
One cylinder, 4 cycled and double valve system gas engine, to show operations like intake, compression, explosion, exhaust, spark and others, mounted on wooden base with spark plug and battery.
4 stroke One cylinder, 4 cycled and double valve system gas engine, to show operations like intake, compression, explosion, exhaust, spark and others, mounted on wooden base with spark plug and battery.
4 stroke One cylinder, 4 cycled and double valve system gas engine, to show operations like intake, compression, explosion, exhaust, spark and others, mounted on wooden base with spark plug and battery.
Consists of columns surrounded by a glass jacket closed by rubber bungs & fitted with inlet & outlet tubes for steam & cold water respectively.
The lower ends of the tubes are bent & are connected horizontally. The upper open ends of the vertical limbs are bent so as to be placed side by side against a silvered glass scale 0-12 cm figured every 2 cm. The whole apparatus is mounted on a wooden stand by means of spring clips. All the glass parts are easily removable, used in determination of coefficient of absolute expansion of mercury.
Consists of columns surrounded by a glass jacket closed by rubber bungs & fitted with inlet & outlet tubes for steam & cold water respectively.
The lower ends of the tubes are bent & are connected horizontally. The upper open ends of the vertical limbs are bent so as to be placed side by side against a silvered glass scale 0-12 cm figured every 2 cm. The whole apparatus is mounted on a wooden stand by means of spring clips. All the glass parts are easily removable, used in determination of coefficient of absolute expansion of mercury.
