Abstract: Vacuum cleaning apparatus having a rotary brush situated at an air intake opening in a housing has a configuration which enables efficient cleaning of edge portions of a floor that are adjacent to a wall or other vertical surface. A cleaning head portion of the housing has intersecting sidewalls which extend at right angles to each other enabling one sidewall to face the edge of a floor while the other sidewall faces the lower edge of an adjacent wall. The air intake opening is angled to extend into both of the angled intersecting sidewalls of the cleaning head. The rotary brush carries bristles which protrude through the air intake opening at both of the sidewalls of the cleaning head and at the intersection between the sidewalls.

Abstract: A hand tool for forming and installing wire ties to join rebar segments includes an extended barrel portion having a loop-forming yoke projecting distally therefrom. Within the barrel, a motor-driven wire cutting and twisting apparatus is closely proximate to the yoke. The yoke is provided with a hook shape to receive the bars, and a guide groove to form a half loop of wire about the pair of bars disposed within the hook confines of the yoke. An end plate at the distal end of the barrel includes a diametrical slot having a wire outlet opening at one end in registration with the opening of the wire guide groove in the yoke. At the other end of the slot, an inlet opening is disposed to receive the wire end from the half loop formed by the guide slot of the yoke. A wire guide mechanism directs the wire end from the guide groove of the yoke to the inlet opening of the end plate of the barrel.

Abstract: A blood pressure indicator adapted for self-examination includes a blood pressure arm cuff having an inflatable bladder, and a pair of pressure sensing switches impinging on the bladder and set to audibly or visually indicate the maximum systolic and diastolic pressure permissible. The bladder is inflatable by a flexible bulb connected thereto through a hose and a unidirectional flow valve which maintains inflation of the bladder. As air leaks out of the bladder, the patient notes when the pulse returns to the brachial artery, in relation to the indications given by the switches to ascertain whether the blood pressure falls within the permissible tolerances.