A Model of Demonstration Motor having 3 armatures, 2 pole, 3 poles &4 pole wound with enameled copper wire and a permanent magnetic field provided by a removable U shape magnet. The construction of the model is completely open and all components are easily observable. The motor operated on 4.6 to 9volts D.C

For detecting the pressure of electrostatic changes, comp rises a pair of 2 pitch balls sphere suspended by cloth thread from wire frame stand

The cut way model demonstration the action of four cycles Diesel engine The cylinder bead has three-valve air admission exhaust and fuel valve (injection) working with cams and levers, which are in turn driven by gears operated by a fly wheel with handle. The well- finished models is a about 40 cm high and fitted on heavy wooden base of approx 25x25 cm. It is complete with spur gears, cams and fuel pump.

The cut way model demonstrates the action of four –cycle air –cooled petrol engine. The cylinder head carries suction and exhaust bulb is provided to indicate the point of ignition. The model is complete with cams, gears, contact plate and carburetor. The model is about 40cm high with all metallic parts fitted on approx 25x25c m heavy metal/ wooden base.

At all metallic and an amazing working model cylinder is section cut and covered with a glass plate. Complete with working parts. Piston valve, link motion and reversing method can also be observed Movement is light enough to dem onstration working even by blowing with mouth. Steam chest and piston are made of cast brass

Capable to run a small dynamo model. Operated of a commercial steam engine is well illustrated by this working Model, or without dynamo. Complete with heating arrangement of special type

For demonstrating the different thermal expansions of various liquid, comprising 5 bulbs tubes with plastic scale mounted in a frame and supported and supported in a GI sheet water trough and to cross members, the lower cross member having holes and the upper tubes to locate the bulb tubes in bungs complete with 35mm diameter bulbs and 15mm cm scales

Open construction, Made of Brass riffled in let nozzles glass valve in vacuum nozzles prevents sucking back internal jets constructed to prevent flooding at the outlet tube and the out let tube is bent to acid turbulence and give repaid exhaustion

Made of steel chrome plated with asbestos lined rectangular jaws giving a firm grip to flask

About 20cm in diameter by 44 mm wide, turned and carefully balanced, mounted on a horizontal shaft held in bell bearings. The wheel is marked and pointer is fixed to the brackets. The brackets have 4 holes and can be fixed to the wall also.

Stainless Steel, mosquito, screw joint straight length 130mm approx

Made of stainless steel with blend ends Length
a) 110mm
b) 130mm

Made of stainless steel with pointed ends length
a) 110mm
b) 130mm

Hard wood, base fitted with rubber feet. Holders with slot for case of funnel entry and fitted with screw.
a) Single Base 20x11cm
b) Double Base 33x11cm

Malleable iron frame with square cut thread-clamping board, swivel head on board, adapts itself any angle of grip. Max Opening of clamp
a) 50mm
b) 75mm

For measurement of small quantities of electrical charge reflecting mirror type mode the moving coil is suspended y a phosphor bronze strip, which carries an optically true concave mirror. The coil can be raised or lowered or set to zero by an adjusting knurled knob at the top a knob at the back is provided for clamping and releasing the coil. A link high resistance is provided to make the galvanometer periodic, if desired, leveling screws are provided for balancing the coil.

Moving Coil with jewel bearing flush mounting in Bakelite case of 65 mm diameter with wire leads terminals at back. Complete with Bakelite stand with 4mm socket terminals. Accuracy +/- 2.5 F.S.D. Range

a) 25-0-25
b) 30-0-30
c) 35-0-35 or any common range

Made form Indian/ Belgium glass bubble less faces nicely polished size 100x12mm diameter x Thickness

sides polished ground edges. Size 75x50x12mm, 75x50x18mm, 100x50x18mm, 100x60x18mm, 1 15x65x18mm, and 125x65x18mm. From Indian Glass mounted size 100x60x25mm, 75x50x18mm

Flask Pattern Brass rod with disc fitted in a conical glass flask of 250nkl capacity.

Brass nickel plated with screw and hinged bottom bar for direct fitting and removal without access to ends of tubes.

Consists have a mirror scale 12cm long and support, a spring weight holder supplied without slotted weight.

Inner cylinder 25x5cm (height x diameter) mounted on a base encircled midway along its length by a gallery 6x10cm (height X diameter) made of stetting sheet nicely painted. With out thermometer

For testing specific gravity of battery acids, with syringes