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Physics Equipments/Heat and Thermodynamics

HEAT AND THERMODYNAMICS:

Ball & Ring

Comprising a captive brass ball secured to mounted brass ring by chain. Ring mounted on rod with wooden handle
An apparatus for demonstrating thermal expansion, comprising a captive brass ball secured to mounted brass ring by chain. Ring mounted on rod with wooden handle. Ball passes through the ring when cold but will not pass through after being heated. Ball dia. 22 mm

Bar & Gauge

Comprising a metal bar mounted on rod with insulated handle and U-shaped metal gauge without handle. Bar and Gauge, Superior

Bimetallic Strip Demonstration

Single piece non-jointed bimetallic strip of with wooden handle.
This single piece non-jointed bimetallic strip represents a commercial available stip. The metals are distinct and visible. An improved version of the rivetted form. Metals are copper and steel

Calorimeter Aluminium 100X75mm Diameter

Aluminium, With parallel sides and rolled rim, without stirrer.
Aluminium, With parallel sides and rolled rim, without stirrer. 100 x 75 mm diameter

Calorimeter Aluminium

Polished Aluminium, with wood / plastic lid fitted with rubber stopper and stirrer.
Polished Aluminium, 75 x 50 mm diameter with wood / plastic lid fitted with rubber stopper and stirrer.

Calorimeter Copper 100X75mm Diameter

Copper, With parallel sides and rolled rim, without stirrer.
Copper, With parallel sides and rolled rim, without stirrer. 100 x 75 mm diameter

Calorimeter Double Wall Electric

Consists of an inner 250ml aluminum vessel and an outer 900 ml aluminum vessel, with a transparent cover with two terminals, which are cross-drilled at their lower ends and are fitted with 5 watt heating coil, the upper ends are fitted with standard sockets for electrical connections. Cover has holes for thermometer and a stirrer. Supplied without thermometer.

This is a high quality double wall calorimeter with aluminum vessels. The calorimeter has a heating coil of about 5 watt mounted with the help of binding rods on the cover. The heating coils are replaceable easily. Included a stirrer with an insulated handle, a single hole rubber stopper, an outer calorimeter with 900 ml capacity and inner calorimeter with 250 ml capacity. It is similar to a Joules Calorimeter.

Charles Law Apparatus

Comprising of a U-shaped glass 15 mm dia. with one plain limb 220 mm long, one 120 mm graduated limb terminating in a 37mm dia bulb with third limb, jointed at right angles to the plain of the other two. Complete with tall farm beaker 1000 ml capacity and stirrer

Comprising of a U-shaped glass 15 mm in dia. with one plain limb 220 mm long, one graduated limb, overall length 120 mm Limb graduated 25 to 35 x 0.2 ml terminating in a bulb 37 mm diameter with third limb 185 x 6 mm length x bore, jointed at right angles to the plain of the other two. Short length of the rubber tubing with two pinch clips on short length of glass tubing mounted at end of wide-bore plain limb with rubber bung. With tall farm beaker 1000 ml capacity and stirrer. All glass parts made from Borosilicate glass.

Compund Bar Brass & Steel

Comprising a bar of Brass and Steel each 200 x 15 mm, 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 Brass and Steel each 200 x 15 mm, riveted together.

Compund Bar Copper & Iron

Comprising a bar of copper and iron each 200 x 15 mm, 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 iron each 200 x 15 mm, riveted together.

Conductivity Apparatus Ingen-Hausz

Consists of 5 metal rods of different materials having equal lenghts mounted in sheet metal box 150 x 90 x 100mm with corks.
Metal rods 150 x 3 mm length x diameter, one each of aluminium,brass, copper, lead and iron, embedded along one side of a metal tank size 150 x 90 x 100 mm length x width x height.

Conductometer

A rod of six metals is radially spaced equally on a brass hub. Each of the rod has a cavity at the outer end.
To demonstrate relative thermal conductivity of brass, copper, aluminium, iron, zinc, and stainless steel. A rod of each metal is radially spaced equally on a brass hub. Each of the rod has a cavity at the outer end for holding paraffin. Using the wooden handle, hold the brass hub over a flame, the wax will melt at different times.

Convection of Gas Apparatus

This apparatus is comprised of a metal box 8.7"x6.5"x4" (22x10x16.5cm) with a sliding front door, two glass chimneys. Candles are not included.

Convection Tube 200X150mm

Borosilicate Glass tube bent into rectangle fitted with filling funnel.

To show the convection of heat in a liquid. Glass tube 20 mm outer diameter bent into rectangle approx. 200 x 150 mm fitted with filling funnel. Made from borosilicate glass.

Demonstration Bimetallic Strip

A 12V halogen bulb is mounted below metallic strip fixed on plastic base of size: 13 x 8 x 3 cm.
Consist in Bimetallic strip on base of size 130 x 80 x 30 mm A halogen bulb of 12V. is mounted below this metallic strip. The bimetallic strip is heated by glow of bulb, bends up the circuit breaks and bulb goes off. Bimetallic cools down, circuit complete, bulb glows and this whole sequence repeats.

Energy Transfer Apparatus-Eddy Current Unit

Comprises 120 mm diameter aluminium disc having 20 mm driving pulley. Mounted on base.
For demonstration of eddy current braking when used in conjunction with the hand wheel driving unit. The 120 mm diameter aluminium disc has a 20 mm driving pulley. The powerful circular magnets are carried on a pivoted arm so that they may be moved over or away from the disc as required. Size 16 x 16 cm

Energy Transfer Apparatus-Hand Wheel Driving Unit

75 mm dia. Driving and output pulleys with 20 mm dia. Intermediate pulley is fiited on 16 x 16 cm base.

For use in driving dynamos, line shafts, flywheels, pumps etc. The driving and output pulleys are both 75 mm diameter and the intermediate pulley is 20 mm diameter giving a step-up ratio of 3.75 Size 16 x 16 cm

Energy Transfer Apparatus-Lamp Unit

Unit consists of three bulb holders connected in parallel with two 4mm sockets, mounted on a standard base. Complete with bulbs.
For use with motor / generators to give an indication of their output when used as dynamos. The lamp holders are connected in parallel. Supplied with three lamps 3.5 V, 0.25 Amps. M.E.S.

Energy Transfer Apparatus-Motor & Solar Cell Unit

A small low consumption electric motor is fitted on a base with fan and 4 mm sockets.
This is a small low consumption electric motor on a base specially designed to run directly from the output of the solar cell and to illustrate the direct conversion of light energy to electrical and hence to mechanical

Expansion Apparatus - Gunther

Comprising two cast metal end pieces joined together by three nickel plated rods and carrying two sliding V-supports for a glass jacket with inlet and outlet tubes.Terminals are also fitted for electricl circuit to indicate the moment of contact of centre tube and spherometer.

Comprising of cast iron supports joined by two rods which carry two sliding supports for glass jacket with inlet and outlet tubes. One endpiece fitted with spherometer reading to 0.01 mm and the other with contact screw. The glass jacket encloses both brass and aluminium rod fitted through corks, a half turn of the jacket changing rod in contact with the spherometer. Thermometer can be attached to either of the rods by rubber bands. Terminals are fitted to apparatus for electrical circuit to indicate the moment of contact of centre tube and spherometer. Supplied with one each of copper, brass and iron expansion rods.

Expansion of Liquid Apparatus

Comprising five removable glass tubes in a sliding frame and supported in a water trough.
For demonstrating the different thermal expansions of various liquids. Comprising five glass tubes in a frame and supported in a water trough. The frame has a special sliding arrangement with clips to hold glass bulbs with tubes. The bulbs can be easily removed and fixed and have funnel formation on top for easy filling.

Heat & Temperature Set.

Consists one each of Pulse Glass, Ball and ring, Unequal expansion bar, Gas convection apparatus, Crooke’s radiometer, Double-wall calorimeter, Lab. thermometer and the specific heat specimen set, candles.
This set provides all the equipment for basic experiments in change of state, thermal expansion, convection, radiation, calorimetry and specific heat. Consists one each of Pulse Glass, Ball and ring, Unequal expansion bar, Gas convection apparatus, Crooke’s radiometer, Double-wall calorimeter, Lab. thermometer and the specific heat specimen set, candles.

Heat Absorption-Radiation Comparator

Comprises of 12 V bulb which acts as a heat source and 2 parabolic metal bodies one finished in black and one in shiny metal. These bodies have 2 thermometer holders attached for temperature readings.
This apparatus allows demonstration for comparing heat absorption & radiation between dull and black bodies. Comprises of 12 V bulb which acts as a heat source and 2 parabolic metal bodies one finished in black and one in shiny metal. These bodies have 2 thermometer holders attached for temperature readings. Instructions included.

Ingen-Hausz Apparatus on Stand

Consists of 6 metal rods of different materials having equal lenghts mounted in corks with their lower ends in a four legged tank of 170mm high.
Comprises six equal rods of copper, iron, lead, brass, zinc and aluminium each 130 x 3 mm dia. mounted in corks with their lower ends in a tank 210 x 75 x 75 mmThe tank is supported on four legs at a height of approx. 170mm above the bench. In use, the rods are lightly coated with paraffin wax and the rates of melting compared.

Linear Expansion Apparatus

• Heavy metal base
• Investigate linear expansion with (3) 50cm rods - aluminum, brass, and iron
• Screw mircometer with 0.01mm resolution
• Supplied with gauge
Includes: (1) Apparatus, (3) rods
The apparatus consists of a 50cm metal rod, 4.5mm in diameter, enclosed in a metal tube with three tubules for steam inlet, outlet, and thermometer. The metal rod to be investigated is supported in the steam jacket by detachable rubber bungs situated at each end of the tube. The apparatus is fitted with a heavy base with an adjusting screw at one end and a micrometer screw at the other end for readings to 0.01mm resolution. Supplied with 3 rods -- thermometer is NOT included.

Rods for Thermal Conductivity Experiments

Set of 6 rods of 300 mm long x 3 mm dia.
Set of 6 rods, Iron, Copper, Aluminium, Lead, Brass& Zinc. 300 mm long x 3 mm dia.

Steam Generator

Thick-walled, aluminium can with nozzle for steam outlet. Two rubber stoppers - one solid and the other with a hole for a thermometer, a tripod stand and one sample cup with handle.

Steam Generator-Iron

Cylindrical vessel 280 x 115 mm, 1.5 liters capacity, neck 23 mm dia. With side tube & water gauge.
Iron, cylindrical vessel 280 x 115 mm overall height x diameter, capacity 1.5 liters, neck 23 mm dia. With riffled side tube 9.5 mm maximum outer dia. and water gauge.

Thermal Conductivity bar

The durable liquid crystal strips embedded in the bars show how a red zone of 40°C moves up the bars. The colours give a dramatic view of conduction. The marked difference in temperature gradients in the bars is also visible. Conduction of heat leaving the metal is shown via immersing the heated bars in cold water. The tops of the bars are designed to be touched with a finger tip to reinforce the colour observations.

Thermal Conductivity of Metal

Comprising strips of copper, iron, aluminium and brass fixed on metal ring.
Same as above but fixed on all metal ring.

Wood & Metal Cylinder

Comprising a cylinder 200 x 30 mm diameter one-half of which is wood, the other metal
Comprising a cylinder 200 x 30 mm diameter one-half of which is wood, the other metal. If paper is wrapped tightly round the cylinder and the rod is held above the flame, the portion is contact with the wood will be quickly scorched while the portion in contact with the metal will remain uncharred.