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Mechanics
GUINEA AND FEATHER APPARATUS
A hard glass tube 650mm length x 25mm dia unevacuated fitted with stopcock to screw into air pump plate, supplied with a small coin and a feather.
Gyroscope
For illustrating the principle of gyroscope action and conservation of angular momentum. It shows that the gyroscope will keep its axis of rotation to retain any particular position in which it may be placed as long as the speed of
rotation of the disc is maintained.
HANGER, 50g
For hanging slotted masses described in 3410-03, 3410-08 and 3410-11. Made of brass.
Hangers for Slotted Weights, Nickel Plated
HARE?S APPARATUS
Comprising Three limbed glass tube mounted on polished wooden stand with scale incm and mm. The column height readings are facilitated by means of sliding stand, which can be lifted upward and downward so that their lower ends just touch the free surfaces of the liquids, complete with rubber tube and pinch clip.
HARE?S TUBE
Unmounted glass tube, limbs 600mm long x 10mm dia, with a third short limb for connecting a suction tube.
HOOK COLLARS
For suspending spring balances, cords, pendulums and other apparatus from support rods or cross members. These metal collars are fitted with thumbscrews.
HOOKE'S LAW APPARATUS
For proving Hookes Law of Elasticity, i.e. that elongation of an object is directly proportional to the load applied and demonstrating the phenomenon of simple harmonic motion of a vibrating weight, potential energy etc.
Consists of an adjustable mirrored scale 15cm long, graduated in millimeters, mounted on a support rod 30cm long fitted on a base. A hook attached to the rod supports a spring and indicator. Provided with a 50g brass hanger. Required slotted weights can be ordered separately.
Hooke?s Law Apparatus
To demonstrate Hooke?s Law and conducting simple harmonic motion experiments. The apparatus consists of a 12cm long scale that is mounted on a simple stand and base, a spring with a weight hanger and attached pointer.
HOOKS LAW APPARATUS
| A precise but inexpensive device for investigating hooks law, potential energy, vibrating masses, etc. Consists of a 15cm adjustable scale on a sturdy support and a spring-suspended weight hanger with pointer |
HYDROMETER NICHOLSON
simple density plated, hollow body joints soldered overall size 250 x 35mm height x dia with upper loading pan and lower loaded weighted pan.
HYDROSTATIC BALANCE
Of stainless steel chromium plated, with 3 pans, one of which with shorter stirrup and with hook. Pans adjustable height with downward playing pointer. The balance is mounted on a rectangular wooden polished base. Capacity 250g sensitivity 10mg.
HYGROMETER WET & DRY BULB
Very good quality, plastic scale.
HYGROMETER WHIRLING
| The ventilated type of hygrometer gives grater accuracy for humidity demonstrations and is particularly useful for measuring local differences in humidity. There are two thermometers mounted in metal case, one having a wick dipping into a water reservoir at the end of the frame. The thermometers are stem engraved with lens fronts for easy reading range ?5 to 50?C x 0.5?C |
HYGROMETER, WET & DRY BULB, MASONS
Comprising two -10 to 55?C, thermometers fitted on a metal case. One thermometer bulb is covered with muslin, which is kept moist by being connected to a reservoir of water. Mounted in a white enameled case with hinged cover.
INCLINED PLANE
For experiments on sliding friction. Comprises inclined wood plane, 600 x 100 x 20mm, with 22mm diameter pulley, hinged to wood base, 450 x 100 x 20mm. Linear scale fixed to edge of plane and vertical linear and 0 to 45? angular scales fixed to base with clamp, shaped for use as index with one each scale pan 75mm diameter, cord and hooks and roller 100 x 18mm.
INCLINED PLANE & FRICTION BOARD
| A plane wooden board 600x75mm hinged to the base at one end and provided with a pulley for the force cord at the other. A movable block enables the inclination of the plane to be varied. The friction slider 100x65mm is reversible. Complete with metal roller 75x25mm dia. with scale pan. |
Inclined Plane, Metal
Constructed of metal, this inclined plane is hinged to a base. Unit is supplied with aluminum protractor and is graduated to 45?. The end of the inclined plane has an aluminum pulley attached to a clamp passing through an extension of one side of the plane.
Inclined Plane, Wooden
A wooden planed board 60x7.5cm. The board is hinged at one end to a wooden base board and the angle of incline can be fixed in a number of positions by a movable block. Complete with roller, pulley wheel and scale pan but without masses.
| -01 | 100gm |
| -02 | 200gm |
| -03 | 500gm |
| -04 | 1000gm |
INERTIA BALANCE
Comprises two metal trays. 130 x 55 x 23mm joined together by a pair of spring steel strips 10mm wide, the distance between the trays being 215mm. One tray is drilled to hold three equal cylindrical masses. The other tray acts as an anchorage and may be clamped to the bench either horizontally or vertically. Complete with three masses and a ?G? clamp for mounting.
Dimensions : 325 x 130 x 23mm overall.
Dimensions : 325 x 130 x 23mm overall.
JOLLY AIR BULB
In above a Jolly Air Thermometer bulb 50mm dia is mounted on a wooden frame which can be fixed at three places, up, middle and down on the stand and enable the apparatus to be used as Jolly?s Apparatus.
KATER PENDULUM
A Stainless steel rod 1200mm long, 10mm dia, with one pair each of small and large brass and ebonite masses, two steel knife edges set in adjustable metal holders and a metal bracket with holes for wall mounting.
KINETIC THEORY MODEL
The apparatus consists of a clear perspex tube 250mm long x 50mm outside diameter provided with a light, freely sliding expanded polystyrene piston and a loose fitting metal cap.
The tube is mounted by means of a bayonet-type fitting in a metal cap, upon a polished wood motor housing 165 x 140 x 75mm high. A low voltage d.c. motor is contained in the housing and is coupled to a crank-driven agitator. The push rod of the agitator carries a light plastic piston which oscillates in the lower end of the tube.
The apparatus is supplied complete with a supply of 3mm dia metal spheres and one thermocoal loading discs.
Overall dimensions assembled 165 x 140 x 340mm high.
The tube is mounted by means of a bayonet-type fitting in a metal cap, upon a polished wood motor housing 165 x 140 x 75mm high. A low voltage d.c. motor is contained in the housing and is coupled to a crank-driven agitator. The push rod of the agitator carries a light plastic piston which oscillates in the lower end of the tube.
The apparatus is supplied complete with a supply of 3mm dia metal spheres and one thermocoal loading discs.
Overall dimensions assembled 165 x 140 x 340mm high.
Leslie?s Cube
Hollow cube of 125mm side made from tin sheet with an opening at the top. The vertical surfaces are dull black, bright black, white and bright.
Lever Balance
For demonstrating the principle of balance and showing the relationship between mass and distance from the fulcrum. Use this with plastic plate weights.
Lever Kit
Kit consists of five wooden beams 60x4.4x0.5cm graduated every 3.8cm with a groove across its center to locate fulcrum.
Includes 5 fulcrum supports and 40 metal weights 2.5cm square.
LEVER KIT
To provide a simple ‘See-Saw’ for experiments on balancing masses, leading to the principle of the lever. Also to show that there is no net change in energy in the moving masses.
Comprises 5 wood beams, approximately 610 x 44mm graduated at 38mm intervals, 4 “U” shaped supports, grooved to locate fulcrum pins, 40 brass ‘pennyweights’, 25 x 25 x 2mm and 20 fulcrum pins for insertion into edge of beam.
Comprises 5 wood beams, approximately 610 x 44mm graduated at 38mm intervals, 4 “U” shaped supports, grooved to locate fulcrum pins, 40 brass ‘pennyweights’, 25 x 25 x 2mm and 20 fulcrum pins for insertion into edge of beam.
LEVER SIMPLE FORM
For introducing the concept of equilibrium leading to an appreciation of the principle of the beam balance.
Consisting of a polished box wood rule 1m in length, spanided in centimeters and millimeters on one edge, and inches and tenths on the other. Drilled every 2cm. Without riders.
Consisting of a polished box wood rule 1m in length, spanided in centimeters and millimeters on one edge, and inches and tenths on the other. Drilled every 2cm. Without riders.
LIFT PUMP/WATER PUMP
Made of all glass, with visible coloured valves. Overall height approx. 350mm, working model mounted on wooden stand 425mm height, with plastic trough.
LINEAR AIR TRACK
Designed for the study of linear motion under conditions of low friction, is made from strong, square section aluminium. Two rows of fine holes run along the top of the track through which jets of air emerge to or an air cushion on which the vehicles float under virtually frictionless conditions.
The track is supported one five adjustable feet. An air inlet tube connection is fitted at one end and a butterfly valve at the other by means of which the air pressure inside the track may be adjusted. The track is supplied complete with the following accessories :
(a) Two heavy and one light vehicle, their masses in the ratio 2:1 with a tolerance of ± 2%.
(b) Two metal location plates drilled to take the inner feet of the track so that it can be firmly positioned on the bench using ‘G’ clamps, screw of self adhesive pads. The plates are fitted with pegs to support the shutter accessory pillars.
(c) Three moulded black ‘buffers’ and three ‘horns’.
(d) One set of pin and absorber (Plasticine) attachments for work on in elastic collisions.
(e) A supply of self-adhesive buffers for an alternative method with inelastic collisions.
(f) A set of Magnadur magnets (2) and counter balances (2) for work on collisions at a distance.
(g) Ten spare rubber bands.
(h) Three black cards to fit the vehicles for use in timing.
(i) 4 elastic chords with plastic ring on each end.
(l) Reel of nylon thread.
SPECIFICATION Track Square section aluminium 50x50mm, overall length 2m. Vechicles two of 230mm approx.x50x6mm, One of 215mm approx. x 50 x3mm.
The track is supported one five adjustable feet. An air inlet tube connection is fitted at one end and a butterfly valve at the other by means of which the air pressure inside the track may be adjusted. The track is supplied complete with the following accessories :
(a) Two heavy and one light vehicle, their masses in the ratio 2:1 with a tolerance of ± 2%.
(b) Two metal location plates drilled to take the inner feet of the track so that it can be firmly positioned on the bench using ‘G’ clamps, screw of self adhesive pads. The plates are fitted with pegs to support the shutter accessory pillars.
(c) Three moulded black ‘buffers’ and three ‘horns’.
(d) One set of pin and absorber (Plasticine) attachments for work on in elastic collisions.
(e) A supply of self-adhesive buffers for an alternative method with inelastic collisions.
(f) A set of Magnadur magnets (2) and counter balances (2) for work on collisions at a distance.
(g) Ten spare rubber bands.
(h) Three black cards to fit the vehicles for use in timing.
(i) 4 elastic chords with plastic ring on each end.
(l) Reel of nylon thread.
SPECIFICATION Track Square section aluminium 50x50mm, overall length 2m. Vechicles two of 230mm approx.x50x6mm, One of 215mm approx. x 50 x3mm.
LIQUID LEVEL APPARATUS
To show that the level of liquid in communicating vessels is constant irrespective of the size or shape of the vessels. Comprising four glass tubes of differing shapes and cross-sectional area projecting vertically from a common horizontal tube. Mounted on a base 230x100x22mm, the apparatus has an overall height of approximately 160mm.
Loop the Loop
A simple apparatus to demonstrate both centripetal acceleration and conversion of potential energy into kinetic energy. A steel ball released at the upper end of the loop, it gains enough energy to transverse the loop without falling. Comes completely assembled on a wooden base.
LUNG DEMONSTRATION APPARATUS
To show how the lungs are emptied and filled with air by the relaxation and contraction of the diaphragm muscle. Two balloons attached to a Y-tube simulate the lungs. The chest cavity is 22.5 x 15cm jar with open top and stout rubber sheet which acts as the diaphragm.
Magdeburg Hemispheres
For demonstrating force from atmospheric pressure. Consists of two metal hemispheres, of approximately 65mm diameter provided with a stopcock and a removable handle on one of the hemispheres.
MAGDEBURG HEMISPHERES
75mm dia of brass, with stopcock and handles. One handle can be unscrewed and the complete sphere connected to the hand vacuum pump.
Manometer, U-Tube
Easy to use manometer. Consists of a large U-shaped tube 50cm high and 2.5cm in diameter. The unit is mounted on a hardwood support with a metric ruler on both sides.
MASS HANGERS IRON
Made of cast iron, hammertone paint finish. Accuracy ± 5%.
Description
| Type | Mass g |
| 01 | 200 |
| 02 | 500 |
| 03 | 1000 |
| 04 | 2000 |
MASS HANGERS STEEL
Made of steel chrome plated for masses.
Description
| Type | Mass g |
| 01 | 200 |
| 02 | 500 |
| 03 | 1000 |
MASS SET CYLINDRICAL, WITH HOOK, SET OF NINE
For general science and physics laboratory work.
Supplied in a wooden block. Includes one each of 10g, 50g, 100g, two each of 20g, and 200g, (all made of plated brass) and one each of 500g and 1000g (both made of cast iron, enamelled finish).
MASS SET, HEXAGONAL
For general science and physics laboratory work.
All are made of stove enamelled cast iron masses except the 10g and 20g masses which are made of polished brass. Packed in a cardboard box. Set of 5 masses: one each of 50g, 100g, 200g, 500g and 1000g
MASSES HOOKED CYLINDRICAL
MASSES HOOKED CYLINDRICAL Chromium plated with cylindrical weight with long hook. Loose or in wooden box.
Description
| Type | Capacity |
| 01 | 10g each weight. Set of 12 |
| 02 | 20g each weight. Set of 12 |
| 03 | 50g each weight. Set of 12 |
| 04 | 100g each weight. Set of 12 |
Masses Iron
Hexagonal masses provided with suspension ring.
| -01 | 100gm |
| -02 | 200gm |
| -03 | 500gm |
| -04 | 1000gm |
Masses Set
Masses are made of nickel plated brass and are accurately adjusted. Housed in a wooden box.
| -01 | Set of twelve masses: | 1x500g, 2x200g, 1x100g, 1x50g, 2x20g, 1x10g, 1x5g, 2x2g, 1x1g |
| -02 | Set of ten masses: | 1x200g,1x100g, 1x50g, 2x20g, 1x10g, 1x5g, 2x2g, 1x1g, |
| -03 | Set of nine masses: | 1x500g, 2x200g, 1x100g, 1x50g, 2x20g, 1x10g, 1x5g. |
Masses Set
Masses Set
Masses are made of nickel plated brass and are accurately adjusted.
Housed in a wooden box with forceps. Set consists of masses 1g to 100g.
Fractional masses are from 1mg to 500mg.
MASSES WITH HOOKS ON BOTH SIDES
Made of plated brass.
MASSES WITH HOOKS, SPARE
As included in the above set
MASSES, HEXAGONAL, SPARE
Made of stove enamelled cast iron masses except the 10g and 20g masses which are made of polished brass. Sold separately.
MASSES, IRON, METRIC
Hexagonal shape with lifting rings, painted. Mass Wt.
Description
| Type | Capacity g |
| 01 | 50 |
| 02 | 100 |
| 03 | 200 |
| 04 | 500 |
| 05 | 1000 |
| 06 | 2000 |
| 07 | 5000 |
MATERIALS KIT (SOLIDS)
A variety of materials in form of rectangular blocks, intended to familiarise the student with the appearance. ‘Feel’ texture, hardness and density of a range of common substances. Kit comprises two each of seventeen blocks as detailed below.
Blocks, 50 x 40 x 30mm Softwood, hardwood, paraffin wax, aluminium, iron, foamed polystyrene.
Blocks, 20 x 20 x 100mm Perspex, glass, slate, aluminium, softwood, marble.
Blocks, other sizes Lead 50 x 50 x 20mm, aluminium 50 x 50 x 80mm, hardwood 50 x 50 x 200mm, brass 20 x 20 x 50mm, Iron 40 x 40 x 20mm pack.
Blocks, 50 x 40 x 30mm Softwood, hardwood, paraffin wax, aluminium, iron, foamed polystyrene.
Blocks, 20 x 20 x 100mm Perspex, glass, slate, aluminium, softwood, marble.
Blocks, other sizes Lead 50 x 50 x 20mm, aluminium 50 x 50 x 80mm, hardwood 50 x 50 x 200mm, brass 20 x 20 x 50mm, Iron 40 x 40 x 20mm pack.
MAXWELL?S VIBRATION NEEDLE
All brass N.P. For experiments on rigidity. It consists of a hollow brass tube graduated with scale spanided in mms and with vernier to read 0.05mm. 40cms. Long, 18mm dia fitted with a small chuck and carrying a mirror, 2 solid cylinders and 2 hollow cylinders all 10cms long accurately fitted in the bore of the tube and ceiling attachment with chuck.
