1710. a) Fly Wheel:
About 20 cms. in dia by 45 mm. wide turned and carefully balanced and mounted on horizontal shaft held in ball bearings. The wheel is marked and a pointer is fixed to the bracket having four holes and can br fixed to the wall. w/o counter.
b) Fly Wheel :
As1710 (a) but 30 cms. in dia. & w/o counter

1711. Fly Wheel : as 1710 (a) i.e. 20 cm. dia but provided with Revolution Counter.

b) Fly Wheel : as 1710 (b) i.e. 30 cm. in dia and with Revoution counter.

1712. a) Screw Jack :
Simple form, consisting of a metal base fitted with thumb nut.
b) Screw Jack model : for determining the efficiency and coefficient of friction. Grooved light alloy platform. 17.5 cms. diameter, screw with 12mm pitch square thread cast iron base hammertone finish with arm and clamp for holding pulley on stem ar any height. With scale pan 15 cms. diameter and 2 meter long cord

1713. Atwood machine,
This machine has brass upright 240 cms long graduated in cms. metal fittings and arrangements for exact adjustment, of vertical and horizontal. No dropping platform. Electric release, weights start falling instantly the circuit is broken. Wheel of aluminium 10 cms diameter is carefully adjusted and balanced on steel bearing. Platforms with sliding weights complete on stand heavy tripod with levelling screws.

1714. Stop Clock, Smith type with new machine nicely finished

1715. Stop Clock as pye Design,
With new imported machine in case.

1716. a) Parallelogram of Forces Apparatus.
Comprising polished wooden board 50x65 cms. having wall brackets, and superior adjustable aluminium pulleys. Complete with 3 hangers 50 gms. and 9 slotted weights of 50gms. each of iron chrome plated.
b) Parallelogram of forces apparatus,
As above but weights and hangers of brass

1717. a)Parallelogram of forces Apparatus.
(Stand type) Comprising of polished wood and clamping aluminium pulleys complete with 3 hangers 50 gms. of iron each chrome plated
b) Parallelogram of forces apparatus,
(Stand type) as above (a) but weights hangers of brass Chrome plated.

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