measurement instrument has branches on the bending spring advanced synthetic

摘要

1288054 Resisting pivoting MANUFACTURE QUENOT MABO 20 Nov 1969 [2 Dec 1968] 56871/69 Heading E2F [Also in Division G1] A resilient hinge connection between folding rule parts 1 and 2 each having a recessed area in an end portion thereof comprises, a rectangular locking bar 5 of resilient plastics having a boss 7 through which the hinge joint rivet 8 passes, projections 6 on the bar 5 which in the open position of the rule engage in holes 4 at the corners of a hollow 3 in the rule part 1, and H shaped spring 12, 15 recessed into the rule parts. Locking of the two parts 1, 2 is effected by movement of the ends 10 of the bar 5 into the lower recessed area 11.