Material or article handling – Apparatus for moving material to a position in the erection... – Flat wall or ceiling member manipulating means
Patent
1986-01-02
1987-07-28
Paperner, Leslie J.
Material or article handling
Apparatus for moving material to a position in the erection...
Flat wall or ceiling member manipulating means
254 2C, 414590, E04G 2114
Patent
active
046829261
ABSTRACT:
A machine is described for accurately elevating and aligning large ceiling panels for placement in an overhead ceiling. The machine includes a frame supported by wheels which permit horizontal transport of the machine between panel receiving and panel placing positions. Elevating outriggers are provided to elevate the frame and wheels at the panel placing location and to partially advance the panel vertically toward placement. A series of elevating stages which are slidably mounted upon guides fixed to the frame elevate the panel to its final elevation for placement. Hydraulic cylinders are provided to elevate the stages. A pair of carriages are provided, mounted on the elevating stages, slidably adjustable along stage frame members, for shifting the panel into transverse and longitudinal alignment for placement. An upper carriage includes a turntable bearing upon which is mounted a base for supporting the panel. Hydraulic motors cause the inner race of the turntable bearing to which the panel-supporting base is fixed to rotate about a vertical axis with respect to the machine, providing angular alignment of the panel for placement. The panel placing machine is particularly suitable for use in confined structures. For example, the panel placing machine is capable of placing large concrete panels into a ceiling in a two-lane tunnel while operating from one lane.
REFERENCES:
patent: 2613822 (1952-10-01), Stanley
patent: 2677580 (1954-05-01), Minzenmayer
patent: 3409158 (1968-11-01), Lull
patent: 3954189 (1976-05-01), Sheritt
patent: 3970200 (1976-07-01), Goetjen
patent: 4051682 (1977-10-01), Lockwood
patent: 4369014 (1983-01-01), Jolivet
patent: 4491449 (1985-01-01), Hawkins
Chambers Sam W.
Miller Wade E.
Spencer Charles R.
Morrison-Knudsen Company Inc.
Paperner Leslie J.
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