t the inner surface of the ring, B, is curved to fit it to, so firmly that subsequent shrinkage cannot loosen any of to overcome this difficulty. exactly. Two flanges or ears project from the outside of said the'parts. The spokes have their ends, which enter between block, which support a worm… … shaft, must be the same as the radius of the segment of the When the envelope is sealed the lapel, A (shown in per- cylindrical ring the plunger is spective, Fig. 1, its true form and position when closed being desired to fit. Operation as fol- shown in dotted outline, Fig. 2), is inside; and when…
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![An illustration from The Modern Priscilla (March 1922) [Incomplete] (1922)](https://img.insideoutlibrary.com/img/200/ia-modern-priscilla-192203-57-0.webp)
