ALINCO, in pairs, Lifting Power 500 gms., with keepers. Dimensions are nominal. Supplied in card board boxes.

A

37 x 13 x 10 mm

B

50 x 13 x 10 mm

C

75 x 13 x 10 mm

D

100 x 13 x 10 mm

E

150 x 13 x 10 mm

Chrome Steel, 12 mm. diameter, in Pairs. Length: 50mm, 100mm, 150mm

Size 50 x 10 x 5 mm, per pair with plastic cover.

For demonstrating the conversion of electric energy into mechanical energy. Star-shaped copper disc 9 cm. Diameter rotatable vertically on pair of adjustable centers and dipping into mercury trough between the vertical limbs of a small horseshoe magnet on a wood base 15x 10 cm. Disc adjustable vertically on metal pillar which is connected to one of two terminals mounted on base. The other terminal is connected to the mercury trough. The apparatus will operates on 4 volts at which voltage it takes 1.8 amps., without battery.

A wooden table supports a plastic ring wound with three coils of 5,10 and 20 turns of insulated copper wire, connected to terminals on the base.

Low voltage, suitable for magnetising and demagnetising ordinary magnets, iron bars, strips etc. Comprises a solenoid wound with insulated copper wire and mounted on a base, complete with switch and 4mm terminals.

Solenoid 250mm Long x 35 mm Internal diameter

Operating Voltage 12V A.C. or D.C. at 6A

Magnetising by A.C. or D.C.

Demagnetising by A.C. only

A: Comprising a stout metal box, 100mm diameter, with aluminium dial graduated in degrees 0-90 four times, anti-parallex mirror slot made by bakelite.

B: As above, but made of bakelite/metal case, mounted on wooden base with meter scale.

Iron, U core, circular section, with flat ends, has one bobbin in each limb wound with enamelled copper wire, with armature.

For demonstrating magnetic replusion. Comprises six ceramic ring magnets around a rod fixed on a base.

ALINCO, Round edges, in Pairs, with keepers, Dimensions are nominal. Supplied in cardboard boxes.

Magnet, Horse Shoe, Chrome Steel with keepers

With aluminium bowl in gimbals and mounted in wooden polished box, slide 20 cm with sliding lid. Diameter of card 10 cm.

Diam.50 mm. with cover and locking arrangement. Dial marked with points of compass and degrees.

With dial marked with principal points of the compass, one glass face only in plastic/aluminium case. Available in different sizes.

ALINCO, with keepers. Dimensions are nominal. Supplied in card board boxes.

37 x 13 x 10 mm

18 mm

350 gms.

50 x 13 x 10 mm

18 mm

500 gms.

73 x 13 x 10 mm

18 mm

500 gms.

Magnetised

32 x 16 x 8 mm

36 x 18 x 6 mm

36 x 18 x 8 mm

45 x 22 x 8 mm

45 x 22 x 11 mm

53 x 24 x 10 mm

72 x 32 x 10 mm

Other sizes and shapes available.

With cobalt steel needle, 10 cm long, graduated quadrant fully rotatable on metal base marked every 45 degree.

An accurately balanced magnetic needle, strongly magnetised is fitted with hardened steel pivot marking in jewels cup bearings. The needle can be easily removed for reversal. The inclination scale is of chrome brass graduated in degrees 0-90 four times. The case is made of non-magnetic steel alloy, duco painted, has easily removable plate glass window and rotates fully on a heavy brass base, is rotation being measured by a brass chrome dial reading 0-360^o. It is fitted with levelling screw and spirit level.

Comprising plastic fomer with terminals and circle marked 0-180-0 divided and figured every 45 degree, with magnet pivot, wound with 30 turns enamelled copper wire and complete with 75mm magnetic needel with brass bearing operates on voltage 4-6 volts.

To show the action of electric current on a magnet. Cobalt steel needle 75 mm, long with agate bearing supported by pivot mounted on plastic base and surrounded by a rectangular of copper rod 85 x 45mm, fitted with terminals.

Comprising a strong U-shaped magnet and a pair of brass rails with 4mm socket terminals. A brass axle with plastic discs is free to roll along the rails and completes the electrical contact between them. When the axle is placed on the rails between the poles of the magnet and a power supply unit is connected, the axle is repelled and rolls along the rails away from the center of magnetic field. Dimensions 175x60x58mm high.

On sturdy streamlined base with provision for horizontal or vertical use. Forks is manufactured from selected steel. Prong is 10x25x300 mm. Accurate frequency adjustment chrome plated, vibrations rate 60 per seconds. Electromagnet can work on 6 volts. The amplitude of vibration can vary by sliding the electromagnet inside prongs. Complete with stylet, mirror and counterpoise.

Designed to show the effects of vibrations in a stretched cord and investigate the relationship between frequency, tension and density. In addition the provision of electrical contacts, opened and closed by the vibrating armature, allow the apparatus to be used as high speed changeover switch in. Comprises a thin steel rod armature, mounted in a clamp formed by a pair of 4mm socket terminals, so that its free length may be adjusted as desired. An A.C. energising coil surrounds the armature and a permanent magnet provides the necessary magnetic polarisation. The free end of the armature equipped with a small boss and clamping screw for attachment of the cord and also serves as the moving contact when the apparatus is operating as a changeover switch. The complete apparatus is carried upon a box type base 150 x 80mm.