e foundation. Fig. 1 is a side view of by Queen & Co. (Incorporated), of ing opposite a notched quadrant and having a retain- the engine, Fig. 2 being an interior view of Philadelphia, Pa., is constructed in ing latch, the sprocket chain may be held in such en- one-half of the cylinder. Inthe… … ends with another similarly fulerumed lever, which is The microscope requires certain arrangements to PARMENTER’S ELEVATOR. also a hand lever. On the latter lever is a segment bring a full course of light with as little heat as possi- with segmental slot engaged by a bolt on the slide, so ble to…
Internet Archive · Public domain (published before 1931). Free to use for anything.
