Back to results
US 4,300,657 AGranted
Scaffold
OwnerH. Truett Thompsoninventor
Life of this patent
Estimating the term…
Abstract
A scaffolding apparatus has features that are easy to carry and easy to assemble. The scaffolding apparatus includes a pair of legs that are connected together by a horizontal rail. Standoff means supports the scaffold against the building, with the legs inclining toward the building and the rails spaced away from the building. A worker's platform is carried by the rail below the rail and for movement along the rail.
Claims9
A scaffolding apparatus, comprising:
- a pair of legs, each of the legs having telescoping means for varying its length;
- a rail interconnecting the legs;
- standoff means for supporting the apparatus against a building with the legs in an inclined position and with the rail spaced away from the building and in a horizontal position;
- and
- a worker's platform carried by the rail below the rail for movement along the rail between the legs.
2 more elements
A scaffolding apparatus, comprising:
- a pair of legs, each of the legs having telescoping means for varying its length;
- a pair of rail brackets, one mounted to each leg, each rail bracket having a socket;
- a rail comprising a hollow rectangular tube with a slot on a lower side, defining a pair of tracks separated by the slot, the ends of the rail adapted to slide into the sockets of the brackets, interconnecting the legs with the rail perpendicular to them;
- two sets of rollers carried in the rail, each set having a wheel engaging each track, each set mounted to a rod that extends downwardly through the slot;
- a worker's platform secured to the rods in a plane perpendicular to the rod;
- standoff means for supporting the apparatus against a building with the legs in an inclined position and with the rail spaced away from the building;
- a brace interconnecting the legs parallel with the rail and located substantially at the level of the platform;
- and
- a sleeve slidingly carried by the brace;
- the platform having a tab on one edge adapted to be secured to the sleeve.
7 more elements
A scaffolding apparatus, comprising:
- a pair of legs, each leg having an inner rod slidably carried within an outer tube;
- locking means for selectively locking the inner rods to the tubes to vary the lengths of the legs;
- a pair of rail brackets, each mounted to one of the tubes near the upper end of the tube, each rail bracket having a socket;
- a rail adapted to slide into the sockets of the rail brackets, interconnecting the legs with the rail perpendicular to the legs, the rail having a horizontal surface extending the length of the rail for defining a track;
- two sets of rollers carried on the track, each set being mounted to a rod that depends downwardly;
- a worker's platform having two side edges secured to the rods in a plane perpendicular to the rods;
- a pair of arms, each arm rigidly carried by one of the tubes at the top and extending laterally outward from the leg at an obtuse angle with respect to the leg, for supporting the apparatus against a building with the legs inclined toward the building and the rail spaced away from the building;
- a pair of brace brackets, each secured to one of the tubes at substantially the level of the platform, each having a socket;
- a brace adapted to slide into the sockets of the brace brackets parallel with the rail and interconnecting the legs;
- and
- engaging means connecting the platform and the brace for maintaining the platform in a horizontal position and allowing the platform to move lengthwise with respect to the rail and the brace.
8 more elements
Dependencies are inferred from the claim text.