SCIENCE AND INVENTIONS.

Otago Witness, Issue 3338, 6 March 1918, Page 47

SCIENCE AND INVENTIONS.

(Released February 2, 1918.) C. J. Lynbe, Macdonald College, Quebec, Canada. COTTON PICKER. At the end of each picking tube here there are five small picking wheels driven by a flexible shaft. Tho cotton picked by

Cotton Picker 78y these is drawn into the machine by suction. Six operators pick three rows at one time. —Dan Daniel, Little Rock, Arkansas. (U.S. Patent 1,247,387). GIVES MAXIMUM FREEDOM. It is claimed for this poke that it gives the animal a maximum of freedom. It permits her to lie down or graze or eat

from a manger without interference. Nevertheless, it prevents her from going through a fence. —Norman Miller, Durant, Okla. (U.S. Patent 1,247,562). HELPS TURN PLANTS UNDER. This plough drag is made of sheet metal, and has two flanges with sharp cutting edges. It uproots or cuts the plants and

Flow Drag collects them in front of the mouldboard, where they are easily covered. —Ira M. Reed, Williamstowh, West Virginia. (U.S. Patent 1,245,969). FOOT WARMER. Heating a house by means of hot water or steam radiators has the drawback that i{ is not easy to warm your feet when you need to. The foot-rest shown here helps

\z4 root Warmer to solve this difficulty. It is made of wood, and is suspended from two metal brackets.—Bert 11. Bower, Gloverville, N.Y. (U.S. Patent 1,240,301). CARRIES OFF THE ODOUR. If a stovo lid is slightly displaced and a lighted match is held near the opening it will be seen that air enters tho fire box. This fact is used here; the cooker has an

Cooker opening through which the odours of cabbage, onions, cauliflower, etc., pass into the fire box.—John J. Burns, Shortville, N.Y. (U.S. Patent 1,241,818). KEEPS YARN AT RIGHT TENSION. Women who are knitting for soldiers will be interested in a ring which is worn on the left hand, and which not only de-

Knitting Ring livers tho yarn in tho right position, but keep 9it at tho right tension. It is simply a wire ring with an open hook. Get a piece of wire and make one. Write to tho inventor if you wish fcr further information. Wo givo his name at tho end of each article. Write to tho Commissioner of Patents, Washington, D.C., if you want any of these patent papers. Order them by tho number. They cost 5 cents each.