Abstract

A selectively pivotal hinge including first and second hinge elements pivotally connected together about a pivot point. The inner portion of the first hinge element is formed into a circular dial disk having a plurality of spaced transverse peripheral apertures adjacent its periphery and having a transverse central aperture at the hinge pivot point. A stem is slidably disposed in the central aperture. A biasing element in the form of a coiled spring contacts the first hinge element and the stem to bias the stem toward the disk. The second hinge element has an abutment which projects toward the hinge pivot point and is disposed below the disk. Two radial dial arms are rotatably secured to the stem at one longitudinal point thereon for circumferential rotation on the stem. The arms extend radially outwardly over the disk peripheral apertures. The arms have transverse arm pins thereon extending transversely from the arms for selective placement into selected of the peripheral apertures and are adapted to abut against the abutment on the second hinge element, whereby when the stem and arms are raised outwardly in the central aperture, the arms may be circumferentially rotated on the stem enabling the pins to be placed in preselected disk peripheral apertures to thus abut the abutment and limit pivotal movement of the hinge.