Method of installing multi-sections vertically acting doors

Details Method of installing multi-sections vertically acting doors Method of installing multi-sections vertically acting doors

1983-01-21

1985-04-16

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Assembling or joining

29434, 52 71, 160199, 254338, B21D 3903, B23P 1100, B66D 136

Patent

active

045106630

ABSTRACT:
Multi-sections vertically acting doors of the prior art comprise a plurality of horizontally longitudinally extending sections that are pivotably connected and including rollable engagement with longitudinally separated trackways. Such prior art doors are herein shown to be installed into vertical trackway lengths by a novel hoisting method that permits the installer to remain standing at ground level as all door sections are being sequentially pivotably connected and rollably engaged into the trackways; this novel hoisting method differs from the prior art ladder-method in that the installer is spared having to tediously and repetitively position, climb, descend, and re-position a ladder. The novel hoisting method utilizes a hoisting apparatus including liftcable for progressively hoisting the door top-section as medial-sections of descending numerical order are sequentially pivotably strung from the suspended top-section, and finally the lowermost medial-section is pivotably connected to the bottom-section to complete the door installation.

REFERENCES:
patent: 168330 (1875-10-01), Haynes
patent: 539341 (1895-05-01), Brown
patent: 2966212 (1960-12-01), Fimbel, Jr.
patent: 3347305 (1967-10-01), Urbanick
patent: 3402457 (1968-09-01), Landdow et al.
patent: 3439728 (1969-04-01), Martini
patent: 3454259 (1969-07-01), Faulkner
patent: 4119133 (1978-10-01), Wolf
patent: 4123041 (1978-10-01), Bucknall
patent: 4269253 (1981-05-01), Ziegler

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