Full Specification ( Bell Crank Lever (With Weight Attachments) ):
The apparatus consists of the following parts :
(i) A lever of well seasoned wood having horizontal arm 75 cm and vertical arm 20 cm.
(ii) A spring balance of 10kg capacity with adjustable wing nut at shorter end.
(iii) A set of slotted cast iron weights of 0.5 kg with necessary one hanger (four sllotted weights and one hanger of 0.5 kg. Total weight 2.5 kg The complete arrangement p mounted on steel frame against wall. But without foundation bolts.
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