A long horizontal pipe for a stove soon fills with soot and must be cleaned. The usual method is to beat the pipe after taking it down to be cleaned, but a much better device for the purpose is shown in the sketch.
A scrub brush is procured and cut in two, the parts being hinged to a crosspiece fastened to a long broom handle. The brushes are pressed outward against the inside surfaces of the pipe with a wire and spring, as shown.
Contributed by C. L. Herbert, Chicago, Illinois.
Mounting Photo Prints on Glass
Photograph prints can be mounted on glass with an adhesive made by soaking 1 oz. of sheet gelatine in cold water to saturation, then dissolving in 3-1/2 oz. of boiling water. Let the solution cool to about 110 deg. F., then immerse the print in it and squeegee, face down, on a clear piece of glass. When dry, take a damp cloth or soft sponge and wipe off any surplus gelatine on the glass.
Dropping Coins in a Glass Full of Water
