Abstract: A material handling apparatus for conveying an article having a ferromagnetic component includes a hopper, a discharge, and a magnet. The hopper has an inlet and outlet and defines a hopper volume for receiving a plurality of the articles to be conveyed. The discharge is spaced from and downstream of the hopper. The magnet is movable between an attracting position proximate the hopper and a discharge position proximate the discharge.

Abstract: A material handling apparatus for conveying an article having a ferromagnetic component includes a hopper, a discharge, and a magnet. The hopper has an inlet and outlet and defines a hopper volume for receiving a plurality of the articles to be conveyed. The discharge is spaced from and downstream of the hopper. The magnet is movable between an attracting position proximate the hopper and a discharge position proximate the discharge.

Abstract: A device, for simulating temperature effects at the interface of a head-to-medium interface, is comprised of a unitary block of material which transmits radiation in the infrared (IR) region of the electromagnetic spectrum and which has a wear-resistant property substantially approximating that of the material of an actual magnetic head to be simulated. The unitary block is shaped to have (1) a first forwardly facing surface substantially approximating the dimensions and contour of the working surface of the head to be simulated, and (2) a second rearwardly facing surface substantially approximating the dimensions and contour of a light-transmitting surface of a positive spherical lens the focal plane of which coincides with the forwardly facing surface. Sapphire is selected as a material having a suitable IR-transmitting property and a wear-resistant-property commensurate with one wear-resistant properties of alloy and ferrite materials commonly used in the manufacture of a video magnetic head.