After marking the line, take a sharp knife and make a cut across the edge, as shown, and draw the knife down well over the corners of the board for about 1/8 in. Place the saw on the cut and start it slowly. The saw blade will follow the cut of the knife blade.
A Substitute Penholder
One evening when my wife was using the only penholder in the house I desired to do some writing and being in a hurry, I hastily made a substitute holder of a pencil. Two cuts were made in the butt end, as shown; the pen was then slipped in, the outside wound with a rubber band, and my penholder was complete.—Contributed by H. A. Sullwold, St. Paul, Minn.
The End of the Pencil as It is Prepared to Receive the Pen
Protecting Binding Posts on Wet Batteries from Corrosion
When recharging the cells of a wet battery it is best to procure the best grade of sal ammoniac, the kind that is put up in boxes having a sufficient amount for one cell. Then, before putting the solution into the cell, melt some paraffin used for preserving purposes and dip the upper end of the carbons, zinc, and the glass jar in it. This will apply a coat of insulating wax that will prevent any white deposit from working up on the parts and corroding the binding posts, or terminals.
The cells are then filled in the ordinary manner, after which the carbons and zincs are raised just far enough to admit a layer of common machine oil, about 3/8 in. thick. The oil not only prevents evaporation but aids greatly to keep the uncovered parts from corrosion.—Contributed by L. R. Kelley, Philadelphia, Pa.
A Cork Puller
