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301/EL BOURDON GAUGE
For measurement of actual gaseous pressure comprises a circular gauge overall dia 100 mm. The dial reads 0 to  1.5X105 N/m2. The gauge carried upon a pillar 55 X 25 mm dia with a tubule 8 mm dia (for connection to system under investigation) mounted on a heavy metal base.

303/EL BOYLE'S LAW APPARATUS
On wooden stand with scale, metal base with leveling screws, open and closed end glass tubes, with rubber tubing. 

305/EL BUCKET & CYLINDERS
Made of Brass, the bucket has a suspension loop at the top and a hook at the bottom. The cylinder has a hook at the top. Cylinder 50 mm, long 16 mm dia.

307/EL CHARLE'S LAW APPARATUS
Complete apparatus with jolly's air bulb.

309/EL DYNAMIC TROLLEY
300 mm long, Metal reinforced at ends having three low-loss ball bearing rubber wheels and fitted with spring loaded rod. Rod has three positions to provide different impulses and triggered by release pin. With removable metal pins at each end to enable trolley or mass to be stacked or to provide anchoring points for acceleration chords.

311/ED EQUALITY OF PRESSURE APPARATUS
Glass cylinder 200X25 mm dia with plunger terminating in a spherical bulb 50 mm dia. Bulb has Nine small holes around. 

313/EL FLUID PRESSURE APPARATUS (Spouting Cylinder)
A Metal cylinder 400X68mm dia with three orifices of same size at different heights.

315/ED FORCE PUMP
Clear glass cylinder of 25mm dia x 370mm long including inlet tube with a piston and a non return float valve. A secondary cylinder with a non return valve and a communicating tube is attached to the main cylinder. The outlet from secondary cylinder drawn in to a jet eject water at high pressure.

317/ED FORCE TABLE
For verifying the laws of composition and resolution of forces. Comprising a machined aluminum table 40 cm dia. 
Its raised rim has engine which has divided scale graduated in 360 on heavy vertical support rod and tripod base. Complete with 1 ring, 4 sliding clamp pulleys, 4 weight hangers and 12 weights of 2 x 10 gms, 2 x 20 gms, 4 x 50 gms, 4 x 100 gms.

319/ED FRICTION BOARD APPARATUS
With glass plate sliding block, Aluminum Fixed Pulley & Scale Pan.

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