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Pneumatics/Hydrostatics

Air Pump (with brass plate) :

(ZES 100)

Brass NP single barrel with stop cock air Inlet screw and a connection for rubber pressure tubing. These pumps may be used satisfactorily for performing all ordinary bell jar demonstration.

 

(a) 12.5 cm
(b) 15 cm
(c) 17.5 cm
(d) 20 cm
 

Air Pump (with Aluminium plate) :

(ZES 101)

This air pump is suitable for many class room demonstration. Single barrel made from steel pipe fitted on wooden base. The Aluminium plate is provided with a stop cock air inlet screw and a connection for rubber pressure tubing.

 

(a) 12.5 cm
(b) 15 cm
(c) 17.5 cm
(d) 20cm
 

Bell Experiment Apparatus :

(ZES 102)

For demonstrating that sound can not be transmitted in a Vacuum. It consists of a 2 liter bell jar and with a rubber stopper fitted with binding posts & connectors from which an electric bell is suspended. It operates on 3 to 6 volts using either battery or a transformer.

 

Magdeburge Hemisphere :

(ZES 103)
To demonstrate pressure of the atmosphere two concave aluminium cups having dia either
62 mm or 75 mm are provided with handle & stop cock
(a) 62 mm
(b) 75 mm
 

Bell Experiment Apparatus :

(ZES 104)

For demonstrating that sound can not be transmitted in a Vacuum. It consists of a 2 liter bell jar and with a rubber stopper fitted with binding posts & connectors from which an electric bell is suspended. It operates on 3 to 6 volts using either battery or a transformer.

 

Magdeburge Hemisphere :

(ZES 105)

To demonstrate pressure of the atmosphere two concave aluminium cups having dia either 62 mm or 75 mm are provided with handle & stop cock

 

(a) 62 mm
(b) 75 mm
 

Pressure String(Simple Pascal law) :

(ZES 106)

For showing that pressure is transmitted equally in all directions. It consists of a hollow metal brass ball 5 cm in dia. Having small holes along one circumference and a branch tube with the piston when held with the holes in a horizontal plane and piston is pushed in, water will stream out the same distance from each hole.

 

Bramh Press :

(ZES 107)

A simple working model to demonstrate the principle of hydraulic press heavy pattern, aluminium fitted on sturdy metal base, working guaranteed good for demonstration.

 

Pascals Law Apparatus (Weinhold) :

(ZES 108)

To show that pressure of liquid depend upon their height of surface from bottom of the columns and not on capacity of vessel, with glass vessels of 4 different shapes mounted in metallic collars all metal parts of aluminium alloy.

 

Boyles Law Apparatus :

(ZES 109)

Comprising two glass tubes one closed at the top and other tube open. Their lower
ends are drawn out and connected together by 1 meter of rubber tubing.

Both tubes are mounted on sliding brackets which may be locked in any position
on the metal supporting rods. Seasoned wood board approximately 44" high carries
a meter scale graduated from 0 to100 cm fitted on heavy iron base with leveling
screws. Supplied without mercury and rubber tube.

 

Boyles Law Apparatus :

(ZES 110)

All metallic same as above but seasoned wood board is replaced by heavy iron strip Approximately 42" x 3"

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