509. Heat Governor.—If a regulator could be placed upon heat pipes so as to keep the heat at a desired temperature, the inventor would reap untold millions. Florists, poultry raisers, and in fact every housekeeper needs this device.
510. Automatic Oil Feeder.—An invention which will feed oil to a lamp at a uniform rate, and which is provided with a cut-off whereby the supply can be stopped when the light is extinguished.
511. Paint Brush Feeder.—A brush with a reservoir of paint so that when the painter finds the uplifted brush growing dry he has but to reverse it in order to have it replenished.
512. Inside Faucet.—The outside faucet is awkward and interferes with cartage. One which could be worked on the inside by a button on the outside is demanded. Improvements in faucets have made two or three inventors rich, but the right one is yet to come.
513. House Patterns.—Thousands of people like to plan for themselves the building of their homes. At present the only means provided is that of pencil and drawing paper. Wooden blocks adapted for the purpose, and ready-made joints would fill a long-felt want.
514. Extension Handle.—A handle which may be applied to any kind of a brush, and which will enable painters, window-scrubbers, and others who have to work at high elevations, to do their work from the ground.
515. Wire Stretcher.—Thousands of tons of wire are manufactured annually, but the wires often are slack. Invent a cheap, simple device which will keep spring beds even and wire fences taut.
516. Price Tag.—A price tag which can be instantly attached to a piece of goods. Merchants would buy it by the thousands if made for a trifling cost.
517. The Handy Vise.—In the course of time a hundred things need fixing in every house. What is needed is a small vise which can be readily attached to a kitchen table, and which would not cost over fifty cents.
518. Folding Ladder.—A light ladder which is portable and extensible would pay well.