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HYPSOMETER, REGNAULT'S (0224)
For determining the upper fixed point of thermometers and boiling points at Barometric pressures other than the atmospheric pressure. Comprising a double walled upper cylindrical boiling vessel with a steam jacketed inner tube, mounted on a stem boiler. A lid with a tubule is provided at the top, which holds thermometer under test through a holed rubber bung mounted in the tubule. Fitted with a side outlet draining tube and a glass manometric tube
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HYPSOMETER, REGNAULT'S all sheet metal components of copper (0224)
For determining the upper fixed point of thermometers and boiling points at Barometric pressures other than the atmospheric pressure. Comprising a double walled upper cylindrical boiling vessel with a steam jacketed inner tube, mounted on a stem boiler. A lid with a tubule is provided at the top, which holds thermometer under test through a holed rubber bung mounted in the tubule. Fitted with a side outlet draining tube and a glass manometric tube
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HYPSOMETER, REGNAULT'S all sheet metal components of GI sheet, finished in hammer tone (0224)
For determining the upper fixed point of thermometers and boiling points at Barometric pressures other than the atmospheric pressure. Comprising a double walled upper cylindrical boiling vessel with a steam jacketed inner tube, mounted on a stem boiler. A lid with a tubule is provided at the top, which holds thermometer under test through a holed rubber bung mounted in the tubule. Fitted with a side outlet draining tube and a glass manometric tube
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HOPE'S APPARATUS (0225)
To demonstrate that the maximum density of water is at 4DC. Comprises of cylindrical vessel of sheet metal mounted on a base and has an annular trough encircling about midway along its length, which is used for placing ice and salt mixture. Fitted with tubulures to carry thermometers and rubber stoppers
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HOPE'S APPARATUS Economy, in smaller size (0225)
To demonstrate that the maximum density of water is at 4DC. Comprises of cylindrical vessel of sheet metal mounted on a base and has an annular trough encircling about midway along its length, which is used for placing ice and salt mixture. Fitted with tubulures to carry thermometers and rubber stoppers
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HOPE'S APPARATUS Superior, in bigger size (0225)
To demonstrate that the maximum density of water is at 4DC. Comprises of cylindrical vessel of sheet metal mounted on a base and has an annular trough encircling about midway along its length, which is used for placing ice and salt mixture. Fitted with tubulures to carry thermometers and rubber stoppers.
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CONDUCTIVITY APPARATUS, INGEN-HAUSZ'S (0226)
For the comparison of conductivity of different metal rods. The apparatus consists of six metal rods, one each of copper, iron, lead, aluminium, steel and zinc of size about 150 x 3mm (length x diameter) fixed horizontally through holed rubber bungs inside a sheet metal trough of size about 150x9Ox100mm. (length x width x height) having six holes on one side. All metal rods have their one end deep inside the trough while other end projecting outside. In use, the rods are lightly coated with paraffin wax and water in the trough is heated. The rates of melting of respective rods can be compared to know their relative conductivities.
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CONDUCTIVITY APPARATUS, INGEN-HAUSZ'S with an insulated Plastic handle on each side for holding (0226)
For the comparison of conductivity of different metal rods. The apparatus consists of six metal rods, one each of copper, iron, lead, aluminium, steel and zinc of size about 150 x 3mm (length x diameter) fixed horizontally through holed rubber bungs inside a sheet metal trough of size about 150x9Ox100mm. (length x width x height) having six holes on one side. All metal rods have their one end deep inside the trough while other end projecting outside. In use, the rods are lightly coated with paraffin wax and water in the trough is heated. The rates of melting of respective rods can be compared to know their relative conductivities.
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CONDUCTIVITY APPARATUS, INGEN-HAUSZ'S with an insulated wooden handle (0226)
For the comparison of conductivity of different metal rods. The apparatus consists of six metal rods, one each of copper, iron, lead, aluminium, steel and zinc of size about 150 x 3mm (length x diameter) fixed horizontally through holed rubber bungs inside a sheet metal trough of size about 150x9Ox100mm. (length x width x height) having six holes on one side. All metal rods have their one end deep inside the trough while other end projecting outside. In use, the rods are lightly coated with paraffin wax and water in the trough is heated. The rates of melting of respective rods can be compared to know their relative conductivities.
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CONDUCTIVITY APPARATUS, INGEN HAUSZ'S, ON STAND (0227)
Comprises a sheet metal trough having seven holes at the top (six in one row and one at a side) and mounted on four detachable metal legs. Six holes facilitate vertical mounting of six metal rods, one each of copper, iron, lead, aluminium, steel and zinc through holed rubber bungs, while the seventh one provides for filling the trough with water or mounting of thermometer, if needed. All metal rods have their one end deep inside the through while other end projecting outside. The trough and stand painted with scratch-resistant epoxy coating.
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DRINKING BIRD (0228)
A classic toy that is really a heat engine. A simpIe, inexpensive device that demonstrates the cooling effect caused due to evaporation. Simply duck the bird's head into a container filled of water to begin the bobbing motion. Subsequently, the thirsty bird will continue to drink so long as there is water in the container.
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CONVECTION TUBE (0229)
To show the convection currents in a heated liquid. Comprises a rectangular borosilicate glass tube of about 20mm outer diameter with funnel shaped outlet at its one side for filling it with water or any other liquid. It may be mounted vertically on a stand by means of a suitable retort clamp and gentle heating of either of its lower corner produces convection current which can be clearly observed by inserting small amount of dye or any other indicator in it. Approx sizes available are
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CONVECTION TUBE 380 x 300mm (0229)
To show the convection currents in a heated liquid. Comprises a rectangular borosilicate glass tube of about 20mm outer diameter with funnel shaped outlet at its one side for filling it with water or any other liquid. It may be mounted vertically on a stand by means of a suitable retort clamp and gentle heating of either of its lower corner produces convection current which can be clearly observed by inserting small amount of dye or any other indicator in it. Approx sizes available are
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CONVECTION TUBE 200 x 150mm (0229)
To show the convection currents in a heated liquid. Comprises a rectangular borosilicate glass tube of about 20mm outer diameter with funnel shaped outlet at its one side for filling it with water or any other liquid. It may be mounted vertically on a stand by means of a suitable retort clamp and gentle heating of either of its lower corner produces convection current which can be clearly observed by inserting small amount of dye or any other indicator in it. Approx sizes available are
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THERMOSCOPE ETHER mounted on stand (0230)
For detecting thermal radiation. Two glass bulbs about 33mm diameter, attached to the ends of a U-shaped glass tube having one limb smaller than the other. Glass bulb attached to the smaller limb painted matt black. Apparatus partially evacuated.
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