Abstract: A telephone apparatus comprises a base and a handset. An inclined cradle is provided on the base for receiving the handset and is shaped such that a handset placed thereon normally falls naturally into a fully seated position. A switch responsive to the presence or absence of the handset in the cradle places the apparatus in an "on-hook" or "off-hook" condition respectively. A co-operating arrangement respectively on the handset and the base permit the handset to be temporarily retained in a partially seated position on the cradle without activating the switch so as to permit the handset to be parked temporarily on the cradle without placing the apparatus in the "on-hook" condition.

Abstract: A lock for retaining a printed circuit board within a frame, which can be used adjacent opposite front covers of the front edge of the printed circuit board to increase the structural rigidity of the frame when locked. This allows the printed circuit boards to be shipped within the frame direct from the factory within an entire fully tested system, with reliability, avoiding damage which often previously occurred due to vibrations and bouncing during transportation. Each lock is comprised of a lever, a protrusion for rotatably attaching the lever to the printed circuit board at a fulcrum point spaced from the axis of the lever, and a latch fixed to the lever at a position closer to the lever and closer to one end of the lever than the fulcrum point, whereby the latch can be rotated over-center relative to the fulcrum point into a cooperating hook and locked therein as the lever is rotated about the fulcrum point.