489. Barrel Gauge.—A dial with hands to be attached to a barrel or keg to indicate the amount of its contents.
490. Elastic Chimney.—An elastic glass chimney which will expand with the heat and not break would sell by the million.
491. Air Moistener.—A apparatus for moistening the air in the room. It should avoid the objectionable feature of all present devices which sprinkle minute drops of water to the damage of goods. All large manufacturers and proprietors of large stores, where many workmen and clerks are employed will pay handsomely for such a machine.
492. Automatic Lubricator.—Every wheel, axle, pulley and joint, in labor’s great beehive needs oil. A vast amount of valuable time is consumed in the work. Invent an oil-can which will work automatically, and you can name your own price.
493. Short-Time Negative.—A process by which the negative of a photographic camera may be developed almost instantly instead of consuming the time now required. An immediate fortune is assured to the discoverer of this art.
494. Drying Apparatus.—An invention by which dry air could be produced in abundance so as to dry clothes or be employed in the preservation of fruits would make its deviser independently rich.
495. Rotable Hotel Register.—A revolving frame for a hotel office, so that the register is alike accessible to the clerks within and the guests without.
496. Glass Dome.—The inventor of the little glass bell for hanging over gas jets made a fortune, but as the gas fixture is commonly attached to a movable bracket it does not always occupy the same place. A glass dome which shall be a part of the gas fixture would be a great improvement and bring much money to the inventor.
497. Round Cutting Scissors.—A scissors or shears that will cut round as well as straight. It would be bought by every one who uses a needle.
498. Casket Clamp.—Three thousand people die every day in this country. Undertakers want a clamp which will keep the casket from moving in the hearse either laterally or longitudinally.