Abstract: A stick umbrella capable of being opened and closed by one hand having a stem, a crown, a runner, main ribs, and stretchers constituting a frame; an elongated slide which is slidably arranged along the stem and carries at the upper end a notch member to which the struts pivoted to the stretchers are pivotally connected; a lever pivotally attached at one end to a collar which is attached to the lower end of the elongated slide and at the other end to the outer end of a radius rod, the inner end of the radius rod is pivoted to a handle, a compression spring being arranged between the crown and the notch for closing the umbrella, and another compression spring arranged between the runner and the lower end of the elongated slide for slightly opening the umbrella when the latch on the cloth is unfastened.

Abstract: A folding umbrella having a telescopic stem which is connected to a crown at the top and at the bottom to a handle pivotally supporting a radius hand-grip, ribs and stretchers are provided for extending or collapsing the roof of the umbrella, a runner is slidable along the stem for actuating the ribs and stretchers through interposed links and auxiliary links, a lever is co-operative between the radius hand-grip and an elongated runner slide which is slidably arranged within the runner and around the stem and which carries at the upper end a notch member to which the struts, pivoted to the links or stretchers, are pivotally connected.