ob, thus regu- about and alive to every de- TWO NEW RANGE FINDERS. lating the amount of vertical movement of the plunger. We illustrate herewith two range finders, invented mand of the patient, etc., are a few of the points which In use, the cork is placed in the open lower end of the by George M.… … VON DER LINDEN’S CORKING DEVICE. end of the cylinder connects with two ports in the re- SEARLE AND SAEGMULLER’S RANGE FINDER.—Fig. 1. versing valve chest, containing a reversing valve in the Washington, D. C., for which United States letters pa- | drive down the plunger rod and force the cork into…
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