(under subclass 1.36) Devices in which two of the contacting elements are connected by a system including a movable link and/or lever for drawing the elements together or separating them, said link or lever having an abutment or hook mounted thereon for applying a force to a portion of the rim incident to movement of said elements and substantially perpendicular to the direction of said movement.
(1) Note. Devices of the type having arms of substantial
length which are designed to project in a radiating fashion are excluded from this subclass and will be found in subclasses 1.38 and 1.41.
