Crushing Cylinder
" Sales Code PGAS101"

To Demonstrate Pressure Of The Atmosphere . Thin Tin Metal Cylinder With Screw Cap 240 X 76 Mm (H X Dia ).

Magdeburg Hemispheres
" Sales Code PGAS102"

To Demonstrate The Large Pressure Which Can Be Exerted By The Atmosphere.Comprises Of 2 Metal Cups Fitted With Handle And A Stop Cock Fitted On One Cup.The Flanges Of Both The Cups Are Ground To Make Them Air Tight.

Air Pump
" Sales Code PGAS103"

It Is Suitable For Use With Magdeburg Hemisphere And Bell Jar Experiments. Plate Dia 150 Mm. It Is Fitted With Stopcock And Is Mounted On A Base.

Boyle's Law Apparatus
" Sales Code PGAS104"
Comprising Two Glass Tubes , Approx-220mm X 8mm (L X I.D ),One Closed At The Top And The Other Tube Open . Their Lower Ends Are Connected Together By 1 Meter Of Rubber Pressure Tubing .Both Tubes Are Mounted On Sliding Brackets Which May Be Locked In Any Position On The Metal Supporting Rods.Stand Is Of Polished Wood,And Carries A Scale Graduated From 0 To 100 Cm With Millimeters Division In The Centre And Figured Every Cm Either Side.Supplied Without Mercury .

Boyle's Law Apparatus
" Sales Code PGAS105"
A Wide Bore Glass Tube Is Mounted Vertically In Front Of A Scale Graduated 0 To 60 Cm.Zero Corresponds To The Inside Of The Closed Top End Of The Tube.Air Is Confined In The Tube By A Coloured Oil Contained In A Metal Pressure Chamber Which Is Fitted With A Bourdon Type Gauge Calibrated 0 To 50 Lbs/ In2 And 3.5 Kg/Cm2 Actual Pressure.A Valve Is Fitted To The Air Inlet Tube From The Pump,As The Pressure In The Oil Chamber Is Increased ,With Extra Strong Glass Tubing And Transparent Plastic Safety Screen Is Secured Is Fitted On Front. Acessary : Foot Pump .

Foot Pump
" Sales Code PGAS106"

Pump With An Integral Pressure Gauge And Adapter For Connecting Rubber Tubing .

Manometer
" Sales Code PGAS101"
For Measurement Of Positive And Negative Pressures. With Stopcock, Calibrated, Limbs Are 300x5mm Bore, On Back Plate, Graduated 80-0-80 Mm.

Manometer , Vaccum Gauge
" Sales Code PGAS107"
Climbs 280x5 Mm Bore With Ends Riffled & Bent At 90 Degree For Rear Connections, Mounted On Graduated Plastic Base.

Hooke's Law Apparatus
" Sales Code PGAS108"

It Consists Of A 12 Cm Long Mirror Scale To Avoid Parallax, A Spring With Provision To Hang Weights And Set Of Slotted Weights ( 200 Gm ) .

Hare's Apparatus
" Sales Code PGAS109"
It Is Used For Comparing The Densities Of Two Liquids. It Consists Of A Three Limbed Glass Tube Fitted On A Vertically Held Board With Scale 50 Cm, Long Graduated Every 1 Mm . A Rubber Tubing Is Attached To The Short Limb For Suction.

Kinetic Theory Model
" Sales Code PGAS110"

To Demonstrate The Random Motion Of Gas Molecules , Thinning Of The Atmosphere With Height ( Behaviour Of Gas At Its Molecules Gain Energy ) Comprises Of A Squar Section Perpex Tube Terminated At The Lower End By Stretched Rubber Diaphragm And At The Upper End By A Loose Fitting Cover.The Random Motion Is Exhibited By Sheres With The Help Of A Vibrator Unit Consisting Of A 6v Dc Motor And A Vibrator Mounted On A Base With 4 Mm Socket Terminals .

Smoke Cell , Whitley Bay
" Sales Code PGAS111"

For Demonstrating Brownian Motion . Designed For Use With A Microscope.A Short Cylindrical Cell,Closed By A Cover Glass Is Held Vertically In An Opaque Channel 90 X 90 X 30 Mm.Illumination Is By An Integral Filament Bulb And Cylindrical Glass Lens.The Cell Enables Brownain Motion To Be Observed For A Least 15 Minutes After Charging The Cell With Smoke ,Fitted With 4 Mm Socket Terminals For Connection 12v Supply.