Magnets Now Used For Milking Cows.

Star (Christchurch), Issue 19247, 8 December 1930, Page 8

Magnets Now Used For Milking Cows.

What electro-magnetic force has don# for the safety of railways, the valve control of pipe organs, the telephone, telegraph and huge steel and ore cranes, it will now be able to do for the cow. Ralph Stoddard, an American agricultural engineer, has perfected an invention which utilises this principle for the rapid milking of the cow, providing, he says, pulsations that will always be the same, thus milking the cows more thoroughly than any other known method. % “Through the use of the electro-magnet, railways operate the complicated signal systems that assure safety,” Mr Stoddard says, “and I found that the same principle was used in the playing of pipe organs. By touching a key the impulse is immediately transmitted to the magnet, which lifts a valve and permits wind to blow through the pipe to give the sound. The same principle is used®in the telegraph and the telephone and I could see no reason for not adapting it to the farm. “It is a fact that a cow is more contented, will give more milk, and quicker, if it is milked by the same man every day. It is really necessary to please the cow to get the most milk. By an electro-magnet this is done by making the milking uniform at each operation.” (Anglo-American N.S.—Copyright.)