C.E.C., of Ohio.--The varnish for patterns is common shellac varnish. It is sometimes made black by lampblack.
RECENT AMERICAN AND FOREIGN PATENTS.
Under this heading we shall publish weekly notes of some of the more prominent home and foreign patents.
MOP.--Philip Cook, Jr., Sioux City, Iowa.--This invention relates to a new and useful improvement in mops, whereby they are so arranged that they may be wrung or freed from water when in use by moving the slides connected with the handle and head of the mop.
VENTILATING HORSE COVER.--Charles P. Eager, Boston., Mass.--This invention relates to a new horse cover, which is so arranged that it will be entirely waterproof, and nevertheless permit a free escape of air from the body of the animal.
CAR COUPLING.--S.O. Campbell, Tipton, Mo.--This invention relates to a new car coupling, which is so arranged that it will be self-coupling and retain the coupling pin ready to lock as long as the link is not inserted.
GAS STOVE.--Wm. J. Hays, New York city.--This invention has for its object to construct a gas stove, with an extender radiating surface, and with proper air channels, so that with a comparatively small amount of heat, the air in an ordinary-sized room can be properly warmed.