TALKING MACHINE STYLI OR NEEDLES

Brand	Owner	Address	Description
RCA	RADIO CORPORATION OF AMERICA	6713 Rudderow Ave 6713 Rudderow Ave Pennsauken Twp. NJ 08109	TALKING MACHINE STYLI OR NEEDLES, AND TALKING MACHINE RECORD ALBUMS;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A floor preparation machine that uses a number of vertical needles positioned in a tight rectangular pattern. The needles vibrate against the floor surface to prepare the floor surface. The needles are driven by a cam and cam follower. As the cam is turned by a motor, a number of ribs repeatedly contact the cam follower, which in turn repeatedly pushes the needles down. Under the top plate that supports the needles, is a rubber form that acts as a "spring" to force the needles up after they have been pushed down by the cam follower. In practice, the system produces a sustained vibration of the needles that breaks the surface to a depth of 1/16 to ? of an inch.