Fig. 38a. A LEVER OF THE SECOND CLASS
Fig. 38b. A PAIR OF WIRE SPLICING CLAMPS
(1) Where the fulcrum is placed between the load and the power which moves it, as shown at A, Fig. 37; a pair of shears, pliers, a balance and a crowbar are levers of the first-class, see B, Fig, 37.
Fig. 39a. A LEVER OF THE THIRD CLASS
Fig. 39b. A PAIR OF SUGAR TONGS
(2) Where the load is applied between the power and the fulcrum, as shown at A, Fig. 38; a lemon squeezer and wire splicing clamps are examples of this class; see B, Fig. 38, and