Launching provision for a planning plate (Machine-translation by Google Translate, not legally binding)

摘要

Launching arrangement for a glider plate, this plate being of the type constituted by a disc having its contour in curved fold, and being characterized because this fold is interrupted in a recess of radial direction, with reinforced sides, in which incoming is susceptible the edge of a rigid plate is introduced transversely, so that, holding each piece firmly in different hands and subjecting the plate to forced backward twisting, the plate emerges when released suddenly. (Machine-translation by Google Translate, not legally binding)