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For fitted to helical springs to use as a reference pointer for extension measurements. Triangular light alloy plate, 55 x 30 mm., length x width, x 20 s.w.g. (0.9 mm.), with slotted hole to take end coil of helical spring and plain hole to take mass hanger

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Physics & Electronic Laboratory Apparatus

MS-149 PVG SPRING INDEXES

Steel, 75 mm. length, diameter 380 mm., in a metal frame.

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Physics & Electronic Laboratory Apparatus

MS-15 PVG ROLLER

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MS-150 PVG SPRING LARGE, COMPRESSION

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MS-151 PVG SET OF SPRINGS

For measuring the tensile strength of different metals by wire samples. Comprises a metal beam having a 5:1 ration and pivoted to move in a horizontal plane mounted on a stout metal base plate fitted with feet. A wire sample of 100 mm. length is held between one clamp at one end of the beam, and another clamp fixed to a tensioning screw. The other end of the beam is attached to a spring balance having range 0 to 30 x 1 N connected to a second tensioning screw, enabling the position of the beam to be maintained opposite an index mark. Base plate printed with a scale 0-100 x 2 mm. for noting the extension of the wire sample. Overall dimensions 330 x 290 x 40 mm., but without wire samples. Wires used for the above areNichrome, Constantan and Copper in packing of 125 gm. or 250 gm. reel, supplied at extra cost

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Physics & Electronic Laboratory Apparatus

MS-152 PVG TENSILE TEST ON WIRES APPARATUS

MS-153 PVG MAXWELL’S WHEELS

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MS-153 PVG MAXWELL’S WHEELS

To demonstrate that the level of liquid in communicating vessels is constant irrespective of size or shape of the vessels. Comprises four glass tubes of different shapes and size, coming vertically from the same common horizontal tube. Mounted on bakelite stand.

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Physics & Electronic Laboratory Apparatus

MS-154 PVG LIQUID LEVEL APPARATUS

As above but five tubes clamped on wooden base of approx. size 220 x 100 x 20 mm., overall height approx. 150 mm

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MS-155 PVG LIQUID LEVEL APPARATUS

Used for specific gravity comparison, Consists of four metal cylinders of aluminum, brass, copper, and iron, each about 50mm. long x 12.5 mm. in diameter

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Physics & Electronic Laboratory Apparatus

MS-156 PVG SPECIFIC GRAVITYSET

DENSITY BALL

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MS-157 PVG DENSITY BALL

For classroom demonstrations. Consists of a U-shaped glass tube 500 mm. high and 12 mm. in diameter. The unit is mounted on a hardwood support with a half meter rule and a wooden stable base. Also available with tube length 1meter and with 1 meter rule.

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Physics & Electronic Laboratory Apparatus

MS-158 PVG MANOMETER

To demonstrate the principles of mechanics of liquids and gases. Consist of a Glass diving apparatus, reservoir and a diaphragm.

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Physics & Electronic Laboratory Apparatus

MS-159 PVG CARTESIAN DRIVER APPARATUS