Engines & Heat Physics Labware

Represents internal structure and operating principles of an air-cooled two stroke engine
All parts in aluminium alloy. Ignition is shown by means of a mainature bulb. Carburetter and fuel supply also sectioned. Mounted on base, with printed diagram showing working.

A model of four stroke water – cooled diesel engine ..
This is of the chain-driven overhead camshaft type and all functional components like camshaft, rock – arms,. tappets etc. are clearly demonstrated. The functioning of fuel injection system is also represented. Ignition is shown by means of a miniature bulb. Mounted on base.

GRAVESANDE – Ring and Ball with Chain. An apparatus for demonstrating thermal expansion, comprising a captive brass ball secured to a mounted brass ring by a chin, Ring mounted on rod with a wooden handle. The ball passes through the ring when cold but will not pass through after being heated

GRAVESANDE – Ring and ball, mounted on separate handle ball.

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

Consisting of a nickel plated copper vessel with outer vessel of teak wood fitted with bakelite top with hole for thermometer, terminals connected to a coil of wire complete with stirrer & outer teakwood vessel for determining the specific heat capacity of liquid by electrical method

1 copper calorimeter, 1 wooden outer box with felt lining, 1 sliding wooden cover for outer box, 1 copper stirrer with loop to fit inside the copper calorimeter, 1 thermometer holder made of brass, removable.

One piece spinning with parallel sides & rolled rim..
Size:
75 x 50 mm
100 x 75 mm

Usable for experiments on specific heat capacity of different metals..
Cylindrical blocks with 12.5mm central hole to accept immersion heater and hole for thermometer. Mass of each, 1 kg 2%
Aluminium Alloy : 76×84 (dia x height) mm Approx.
Brass : 44×84 (dia x height) mm Approx.
Copper : 44×79 (dia x height) mm Approx.
Steel : 44×89 (dia x height) mm Approx.
Supplied without thermometer.

For showing the difference in conductivity.

Rod 300 x 18 mm half brass & half polished wood.

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.

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.