Abstract: A side cutting can opener with a double grip includes an upper and a lower grip. When the two grips are closed, a cutter and a pull wheel can clamp a lip of a can and cut an outer edge of the lip off with the cutter rotated by a rotatable grip. The upper and the lower grip respectively has a combine end facing each other and provided with a ratchet wheel. The two grips are easily closed vertically from an open position to force the cutter and the pull wheel clamp the lip of a can. Then the rotatable grip at the right side of the grips can be easily rotated to force the cutter move along and cut the outer edge of the lip of a can.

Abstract: Caliper brake apparatus has a caliper housing, an actuator including a plunger movable axially longitudinally to urge a lining against a rotating disc, and the lining having the form of a plate which is laterally elongated and defines a plane generally perpendicular to said axis. The apparatus is improved by:(a) the plunger having cross sections in planes normal to said axis and characterized as laterally elongated and as having lateral length dimensions which are substantially greater than the plunger transverse width dimension, the width dimension being generally normal to said axis and to said lateral length dimension, and(b) the actuator having a recess receiving the plunger, the recess having cross sections in planes normal to said longitudinal axis characterized as conforming in shape to said plunger cross sections.In addition, one or more removable end plates may be employed to removably retain the lining in position.

Abstract: A calibration circuit and method for use with systems of the type displaying values of a measured condition in response to electrical pulses received at the system input in which the repetition rate of the received pulses is representative of the value of the measured condition. Electrical pulses, having a known repetition rate are generated for simulating a value of the measured condition in response to a reference signal of known frequency, the repetition rate of said simulating pulses being determined by the frequency of the reference signal.

Abstract: A mechanical gum massaging device in which the stimulating or massaging element is caused to move (a) in a generally elliptical path, with (b) the plane of said path being substantially perpendicular to the longitudinal axis of the device, and (c) the operative portion of the stimulator element extending outwardly from the device in a direction such that the plane containing said direction and the longitudinal axis of the device is substantially perpendicular to the major axis of said generally elliptical path.