Abstract: An improved injection molding machine having a support frame, an injection gun, a guiding device, and a molding cavity, the guiding device being mounted to the support frame for moving the injection gun along a longitudinal axis towards and back from the molding cavity. The improvement lies in that the guiding device includes an actuator, a lever link, a coupling link, and a guiding track. The actuator is mounted to the support frame and has a piston end movable between a retracted position and an extended position. The lever link has a central portion pivotally mounted to the support frame and further includes first and second ends located respectively on both sides of the central portion, the first end of the lever link being pivotally connected to the piston end of the actuator.

Abstract: The crank handle of a window sill used for actuating a window pane has a hollow end in which is received an insert allowing the handle to engage various sizes of crank shafts. The insert is formed of a malleable material so that it can be deformed to fit the diameter of a crank shaft to thereby securely engage the crank shaft and enable its rotation by the handle.

Abstract: A cap is disclosed, for use on a container having a neck defining an opening sealed by a protective foil that has to be removed when the container is used for the very first time. The cap comprises a top sized to close the opening and a peripheral skirt that projects from the top and is detachably connectable to the wall of the neck. The cap also comprises at least one and preferably two open slots made in the skirt, the slots extending at angle from the bottom edge of the slot and being wide engage to receive the wall of the neck. The slots make the skirt to define spikes that preferably are oppositely oriented for use by right-handed or left-handed persons to perforate and remove the protective foil sealing the neck of the container when the latter has to be opened for the very first time.