Abstract: A collapsible sawhorse is provided in which the legs are pivotally mounted relative to each other for movement between a conventional load supporting sawhorse position and a collapsed position. The collapsible sawhorse comprises a wide work supporting beam coextensive with the length and width of the device. A pair of rope lengths are provided to limit pivotal movement of the sawhorse legs. A brace selectively spans the legs to prevent inadvertent movement of the legs toward each other.

Abstract: The subject invention relates to a scaffold system for use in sandblasting. The scaffold system is intended to prevent particulates generated during the sandblasting operation from entering the atmosphere. This result is achieved by providing a platform having an enclosure formed on three sides thereof. A plurality of inverted pyramidal troughs are mounted in abutting side-by-side relationship on the lower surface of the platform. A conduit system is connected to the lower ends of the troughs. In use, particulates generated during the sandblasting operation are contained by the enclosure and directed into the troughs to be channeled by the conduit system to the ground.

Abstract: A preferred tower of a lookout is triangular in cross section and tapers inwardly from the bottom to top. The tower has an upper and a lower section of about equal lengths, and the tower can be easily and quickly disassembled, and then the sections nested for easy transportation and storage. When the sections are nested, wheels that extended outward from a side near the bottom of the tower become wheels of a dolly to help transport the components of the tower and any load tied upon the nested sections. An extending platform as a stand or a footrest is removable from near the top of the tower and readily stowed within the nested sections.

Abstract: This invention relates to a fire escape for high rise buildings. Cables are automatically lowered from the roof of the building, and once they have descended, brake apparatus is slipped over each cable to be used from various levels of the building. A person is suspended from each brake apparatus, and is controllably lowered to the ground. Since the brake apparatus can be attached anywhere along the cable without prethreading, a plurality of persons can be lowered at the same time, and the same cable can be used repeatedly by many people.

Abstract: The ladder of the invention includes first and second upright angle members connected together for movement in a parallel, arcuate relationship between an open position and a nested position. A cam surface on one of the uprights, when the uprights are going toward nested position, bears against a notched lever mechanism including a cap pivoted on the other one of said uprights. Normally, the lever mechanism is urged by a spring into latching position. The movement of the movable upright with respect to the other upright cams the cap and lever out of the way. The first and second uprights, when nested, are in a position with a flange on one of the uprights in a notch in the lever so that the uprights are contained in nested position. There is a pull cord for releasing the lever mechanism.

Abstract: In the event of fire, a telescoping pole is transported, by means of a hoist, from a stored location within a building to a sleeve permanently mounted on a balcony or near a window. The pole is inserted into the sleeve and telescoped to its full extended position. A trolley is mounted on this pole. The user straps himself in a seat, attaches the seat to the trolley, and suspends himself from the pole. Using a hand-over-hand motion, the user propels himself away from the building to the end of the pole where he may be rescued by firemen.In a second embodiment, the pole is telescopingly mounted and permanently stored in the sleeve, thereby eliminating the need to transport the pole. The sleeve is pivotally mounted on a stand for rotation about a vertical axis and the pole, when stored therein, is interior to the side of the building. In the event of fire, the user manipulates the pole by rotating it to a position which permits it to be telescopingly extended away from the side of the building.

Abstract: Parallel tubular arms removably slide into the openings through the openings in the side rails and the hollow rungs of aluminum ladders. A swivel on at least one arm protruding through both ladder rails turns to secure the handrail to the ladder. Orthogonal extensions of the arms support the handrail in a fixed position away from the ladder. Depending on the relative lengths of the supports the handrail may be in parallel or sloping alignment with the ladder. Handrails may be installed on both sides of the ladder and a restraining means secured between the handrails.

Abstract: A ladder climber's safety device comprises a pair of manually graspable rung engaging members providing sliding latches for engaging the rungs of a ladder. The rung engaging members are connected to the climber's safety belt and are interconnected with one another by a push-pull cable for effecting latching and unlatching of each rung engaging member alternately in response to unlatching and latching of the other member.

Abstract: A lightweight ecologically oriented shell-like device comprising, with a strap, portably useable tree climbing steps in which the application of stresses in climbing seat the steps firmly and without digging into or displacing the bark and wood of trees and similar vertical cylindrical structures. These devices are useful for hunters, for woodsmen, for utility pole climbing, and the like.

Abstract: A side protection device for scaffoldings, particularly metal scaffoldings including a plurality of substantially vertical tubular posts, each having at least one bracket thereon, traverses attached to the posts, and a boarding resting on the traverses is provided. The side protection device comprises a collapsible framework which is composed of at least one horizontal tubular brace and two substantially vertical tubular side members affixed to the ends of the horizontal tubular brace. The framework can be suspended by means of two supporting arms on two brackets occupying a fixed position on the tubular posts of the scaffolding so that it extends downwards as far or almost as far as the boarding of the scaffolding.

Abstract: A pedestal scaffold having a base member with an upwardly extending mast and a work cage mounted thereon for vertical movement. Retractable outriggers with ground-engageable pads are extendable outwardly on the cage side of the scaffold and lockable into support position to provide a large support area for the elevated work cage. Ground-engageable casters are mounted on the base and the cage and the cage is releaseably locked to the base. When the base and cage are locked together, the scaffold can be moved horizontally on the base and cage casters with the mast being vertical. When the cage is unlocked for vertical movements, scaffold weight is transferred from the cage casters to the non-rolling outrigger pads so that the scaffold cannot be moved along the ground when the cage is elevated. If the cage-side outriggers are not properly braced, the cage can be unlocked from the base but cannot be raised off the ground.

Abstract: A scaffold having a number of platform plates connected through independent chains. Independent chains are also provided above the uppermost platform and below the lowermost platform for connection to upper fitting members and lower fitting members, respectively integral with a wall. The latter chains are provided with tensioning means enabling the scaffold to be firmly and rigidly secured to the wall. The platforms are also adjustable horizontally.