y for the 3+ oo which features are embodied in a single tool. The device, as shown in Fig. 1, comprises a body TOOL FOR WITHDRAWING CASINGS FROM WELLS. A very useful invention, portion having near its lower end a lateral projection A tool has recently been invented by Mr. S. Bennison, provided with… … e \ ANY ve the casing the stem is pulled upward and the wedge > c\ ASK QU TWA, block acts to spread the clutch jaws, sinking their teeth into the inner surface of the casing section, as A SIMPLE SAW-TOOTH TOOL. IMPROVED DRAWING COMPASSES, shown in Fig. 2. Thus a firm grip is secured and the section…
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