Let a portion of this stand in the space above the stopper for a few hours, when a slight tap will loosen the stopper.
II.—A circular adjustable clamp, to which is attached a strip of asbestos in which coils of platinum wire are imbedded, is obtained. By placing this on the neck of the bottle, and passing a current of electricity through the coils of wire, sufficient heat will be generated to expand the neck and liberate the stopper. Heat may also be generated by passing a yard of cord once around the bottle neck and, by taking one end of the cord in each hand, drawing it rapidly back and forth. Care should be taken that the contents of the bottle are not spilled on the hand or thrown into the face when the stopper does come out—or when the bottle breaks.
STOPPER LUBRICANTS: See Lubricants.
STOVE POLISH:
See also Polishes.
The following formula gives a liquid stove blacking:
| Graphite, in fine powder | 1 pound |
| Lampblack | 1 ounce |
| Rosin | 4 ounces |
| Turpentine | 1 gallon |
The mixture must be well shaken when used, and must not be applied when there is a fire or light near on account of the inflammability of the vapor.
This form may be esteemed a convenience by some, but the rosin and turpentine will, of course, give rise to some disagreeable odor on first heating the stove, after the liquid is applied.
Graphite is the foundation ingredient in many stove polishes; lampblack, which is sometimes added, as in the foregoing formula, deepens the color, but the latter form of carbon is of course much more readily burned off than the former. Graphite may be applied by merely mixing with water, and then no odor follows the heating of the iron. The coating must be well rubbed with a brush to obtain a good luster.