surface of which rides over the opposite side of the opening 181 in operation the circuit breaker is charged for closing the contacts manually by rotating the handle 151 clockwise in the direction of the arrow 213 fig8 until the end 161 of the spring strikes the notch end 201 during that action the notches 173 175 engaging with projections 169 171 rotate the drive wheel 147 clockwise which in turn rotates the ratchet wheel 145 through the laterally extending portions or nibs 179 in the openings 181 the brake wheel 149 retracts against the coil spring 159 as the edge of the opening 181 rides over the inclined surface 211 of the laterally extending portion or nib 183 at the end of a given stroke of the handle 151 the coil spring 159 through the end portion 161 returns the handle 151 to the original position fig8 in preparation for a second charging stroke during rotation the laterally extending portion 183 of the brake wheel 149 is lodged in an opening 181 to prevent retraction of the ratchet wheel 145 simultaneously the return action of the handle 151 rotates the drive wheel 147 through notches 173 175 and projections 169 171 counterclockwise causing the inclined surfaces 207 to ride over the edge of the opening 181 against the pressure of the spring 163 at the end of the return stroke of handle 151 each laterally extending projection of nib 207 is lodged in another opening 181 ready.