Foldable and height adjustable overhead lift

A foldable and height adjustable overhead lift including a horizontal lower elongated base frame, an upright longitudinally extendible boom, first pivot means supporting a first lower end of said boom from one end of said frame centrally intermediate the opposite sides thereof for selective angular adjustment of said boom relative to said frame about a first horizontal transverse axis extending transversely of said frame and boom between an upright position and a lower horizontal position closely overlying said frame and with the second of said boom projecting toward the second end of said frame, a second horizontal upper frame, second pivot means supporting said upper frame from the second end of said boom for selective angular displacement of said second frame relative to said boom about a second horizontal axis generally paralleling said first axis between a first position with said second frame disposed at generally right angles relative to said boom and a second position with said second frame generally paralleling said boom, said second frame including generally horizontally aligned, upwardly facing and horizontally spaced apart support portions supported therefrom, said first and second pivot means enabling said boom to be positioned in various inclined positions while said base and upper frames are maintained substantially horizontal, said first and second ends of said boom including mounting flange portions provided with parallel horizontal splined bores, said upper and lower frames including pairs of spaced mounting flanges having aligned horizontal splined bores formed therethrough and between which said boom flanges are received with the boom flange bores registered with the corresponding frame flange bores, and a pair of spring biased pivot fasteners each including a first splined end extending through the corresponding splined bores and a second smooth end axially shiftable into at least one of the corresponding frame flange bores and the corresponding cylinder flange bore.