GB1305640A - - Google Patents

Abstract

1305640 Toy windmills A E JACKSON and M LAWS 28 Oct 1971 [18 Nov 1970 21 Oct 1971] 54891/70 and 49035/71 Heading A6S A toy windmill has at least one vane 1,3 pivoted about a central pivot spindle 5 and made of a flexible material, e.g. plastics, having a reinforcement 2, 4 so arranged as to provide a relatively stiff leading edge 12, 13', &c. When wind blows upon the vanes, the relatively more flexible edges 14, 14', &c. bend and become the trailing edges. As shown, two vanes 1, 3 are mounted one behind the other and arranged to rotate in opposite directions on the spindle 5, which itself has a pivot connection 9, 10 about the end of the handle 6. Ridges 16 in the vanes provide bearing surfaces. In a modification, instead of the pivot spindle 5 being mounted directly on the handle 6, it is instead connected to the handle by a string (12), Fig. 3 (not shown) via a rotary connection (14), Fig. 3A, to prevent twisting of the string. As a further modification, the vanes may be shaped as semi-circular petals, Fig. 1B (not shown).