MECHANICS 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. BOYLE'S LAW APPARATUS On wooden stand with scale, metal base with leveling screws, open and closed end glass tubes, with rubber tubing.  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.  CHARLE'S LAW APPARATUS Complete apparatus with jolly's air bulb. 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. 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.  FLUID PRESSURE APPARATUS (Spouting Cylinder) A Metal cylinder 400X68mm dia with three orifices of same size at different heights. 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. 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. HARE'S APPARATUS                                                               On polished graduated 45 cm long stand complete with plain glass tube. INCLINED PLANE For experiments on sliding friction. Comprises of inclined wood plain of 600 x 100 x 20 mm with 22 mm diameter  pulley on wood base of 450 x 100 x 20 mm. Linear scale fixed to the edge of plane and vertical linear and 0 - 45° angular scale fixed to base with clamp shaped for use as index. With one wood block of 200 x 75 mm and 100 x 75 mm, steel block 100 x 75 mm, scale pan 75 mm dia, chord & hooks. INERTIA BALANCE Comprises two metal trays of 130 x 55 x 23 mm joined together by pair of spring steel strips of 10 mm wide,  distance between the trays being 215 mm. One tray is drilled to hold 3 equal cylindrical masses. The other tray acts as anchorage & may be clamped to bench either horizontally or vertically. Complete with 3 masses & `G' clamp for mounting. Dimensions are 325 x 130 x23 mm LIFT PUMP A clear glass cylinder of 25mm dia x 370mmlong with a piston and a non return float valve, the outlet is by means of a side tube. Glass part only unmounted  LIQUID LEVEL APPARATUS Four glass tubes of different shapes and sizes fused in to common horizontal tube mounted on a base 200 x 80 mm, height 150 cm MAGDEBURG HEMISPHERES Two heavy metal cups. Cast and machined, iron 7.5 cm dia with ground flanges with stop cock; threaded to suit  plate of the air pump METAL ASSORTED-PENDULUM BOBS With hook set of six comprising Brass, Lead, Copper, Zinc, aluminium & Iron.  a)12 mm dia set  b)18 mm dia set  c) 25 mm dia METAL ASSORTED CUBES Set of six comprising Brass, Lead, Copper, Zinc, Aluminium & Iron.  a) 10 mm  b) 20 mm. METAL ASSORTED CYLINDERS Set of six comprising Brass, Lead, Copper, Zinc, Aluminium & Iron.  a) 9mm dia X 40 mm, set  b) 12mm dia X 50 mm, set PASCAL'S LAW APPARATUS ( HALDT'S) Comprising 4 different shaped glass vessels, with identical bases which may be screwed into the outlet valve. The valve has an accurately ground disc flexibly mounted at one end of a beam, which in turn is carried on a pair of adjustable point pivots. The other end of the beam is provided with a scale pan. An index pointer is provided  for the liquid level. The apparatus is mounted on a heavy metal stand. Complete with reservoir. PULLEY ON CLAMP The pulley is of aluminium or plastic 50, 38 mm dia. It is mounted on metal painted universal frame which can be attached to a retort stand or clamped on the table edge. The two tightening screws have tommy bars. PULLEYS - METAL Aluminium with groove for whipcord in metal frame with two holes in a frame. Separate metal hooks can be provided. a) Single, b) Double, c) Tripple  PULLEYS - PLASTIC 50 mm dia. with groove in plastic frame with two holes in frame. Separate metal hooks can be provided.  Separate frame , wheels and pin available .  a) Single, b) Double, c) Tripple  PULLEYS : Z CLAMP 50 mm, dia in metal frame for clamping to benches or boards upto 35 mm thick. SIMPLE PENDULUM With three balls, one of wood, second brass and third lead, 18 mm dia.  COMPOUND PENDULUM Reversible steel bar about 1 meter, chrome plated holes at every 5 cms. Removable knife edge, metal bracket support for wall mounting. TERMINALS: clip type Clip type with plastic shank. KETER'S PENDULUM Keter's reversible. Brass rod 9.5 mm dia and 120 cms. long, with one pair each of small and large brass and wood weights, two steel knife edges, adjustable, and metal bracket for wall mounting. SURFACE TENSION APPARATUS- SEARLE'S PATTERN To measure surface tension of soap film or any transparent by deflection of beam carried by stretched wire fitted on tripod stand with leveling screws. TICKER TAPE TIMER Complete with transformer, vibrator, tape & stand. VISCOSITY APPARATUS - STOKE'S METHOD Study apparatus 30 mm dia, glass tube 1m long is made to stand vertically firmly between two upright bars on heavy cast iron base with or without glass tubes. WHEEL AND AXEL Four wheels of diameter 12, 8, 4 and 2 cm are machine-turned out of a single aluminium piece. A compound wheel is mounted in an aluminium bracket on cone bearings. The bracket has a chrome-plated rod that can be clamped to a retort stand and is coated with black, oven-baked paint. Packed weight : 0.8 kg Size : 18 x 17 x 13 cm  YOUNG'S MODULUS APPARATUS (SEARLE'S) Consists of two nicely painted frames connected by a link. Frames are with spirit level, spherometer and  self centering chucks, complete with 2 chucks ceiling attachment and tension weight.