Handy man's workshop and laboratory . m&: Fig. 107—A guide for the stock bit shank of the drill or bit, and then if it feeds forward or backwardwhile the bit stock is being operated it indicates that the bit is HANDY MAN S WORKSHOP AND LABORATORY 93 tipped upward or downward, respectively. When the bit is heldhorizontal, the washer will remain stationary. The washer shouldbe free from burrs, and the opening should preferably be turnedtrue. DRILLING HOLES IN MARBLES Recently a man came to the writer and wanted a hole putthrough the center of some marbles. The accompanying sketchgives an idea of
Handy man's workshop and laboratory . m&: Fig. 107—A guide for the stock bit shank of the drill or bit, and then if it feeds forward or backwardwhile the bit stock is being operated it indicates that the bit is HANDY MAN S WORKSHOP AND LABORATORY 93 tipped upward or downward, respectively. When the bit is heldhorizontal, the washer will remain stationary. The washer shouldbe free from burrs, and the opening should preferably be turnedtrue. DRILLING HOLES IN MARBLES Recently a man came to the writer and wanted a hole putthrough the center of some marbles. The accompanying sketchgives an idea of the way the work was accomplished. Througha piece of soft steel 2x3x1 inches a hole was drilled of the size. Figs. 108 and 109—A method of drilling holes in marbles of the one wanted in the marbles. Then with a countersink aconical aperture was made in one side as illustrated. Two tappedholes, one above the other, below the aperture, admitted a pairof thumbscrews that secured a flexible strip made from the springof an eight-day clock. On the strip next to the marble whichwas seated in the conical aperture a piece of emery cloth wasplaced. The whole was then held in the vise and the marblewas easily bored.—14 A HANDY TAP WRENCH A wrench for holding machine taps or reamers and the likecan be easily made of a piece of flat steel and two machine screws ; 94 HANDY MANS WORKSHOP AND LABORATORY if steel is not handy, iron can be used. Take a piece of stock ofabout }ix% inch, and cut off two lengths of 5 inches the end of these pieces and about 1 inch apart, drill two \^7v^/ Fig. no—Handy tap wrench holes; 34-inch tap holes in one and clearance holes in the between th
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Keywords: ., book, bookcentury1900, bookdecade1910, booksubjectworkshoprecipes
