This class includes (1) structures supported in spaced relation to the earth's surface for supporting a workman adjacent a structure being worked on, (2) means for climbing comprising a stile having steps or rungs, (3) means ancillary to normal egress means to traverse a vertical distance to facilitate quick escape from a structure in case of emergency not elsewhere provided for and (4) torso harness, for rescue or escape operations, with or without a tether anchored to the work or to a worker's support.
REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS
14, Bridges,
69.5, 72.5 for a gangway for supporting a person or material between ordinarily disassociated bases.
52, Static Structures (e.g., Buildings), appropriate subclass for a tower, mast or other structurally similar building structure including a building construction forming or combined with a stair or ladder, a helical stair or a stair with a riser. This class (182) takes a tower with a platform which supports a person.
104, Railways, appropriate subclasses for a track mounted vehicle of general utility.
105, Railway Rolling Stock,
437+, for vehicle steps with a gate, and subclasses 443+ for permanent vehicle steps requiring installation at the time the railway car is manufactured or requiring modification of the car, and for an auxiliary step in combination with and requiring specific coaction with said permanent steps or the side supports therefor, e.g., an extension or auxiliary step for a staircase on a railway car operated therefrom. Class 182 takes auxiliary steps external and independent of a railway car, and an auxiliary step simply supported by merely "a step". 108, Horizontally Supported Planar Surfaces,
144+, for a vertically adjustable horizontally supported
planar surface, and subclasses 115+ for folding horizontally supported planar surface, especially subclasses 116+ for such surfaces which are vertically adjustable.
119, Animal Husbandry,
712+, and 856+ for body harness useful for both lower animals and human beings. See the search notes thereunder.
137, Fluid Handling,
342, for a workman's support ancillary to a fluid handling system.
169, Fire Extinguishers,
24, for a pumping apparatus on a fire truck and subclass 25 for a portable discharge pipe with means for elevating and controlling a fire-hose nozzle. This class (182) takes similar structure wherein the truck supports a ladder in operative position or wherein the nozzle support is a ladder structure.
187, Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle, appropriate subclasses for personnel lift structure of general application. This class (182) takes the combination of a scaffold or ladder and such an elevator.
188, Brakes,
65.1, for strand brakes of general utility. 198, Conveyors: Power-Driven, appropriate subclasses for a conveyor having general utility.
212, Traversing Hoists,
71+, and 312+ for traveling cranes of general application; and subclasses 223+ for a hoist having a horizontally swingable boom.
244, Aeronautics,
147, for aircraft structure relating to passenger and cargo loading and discharge, and subclasses 138+ for a safety lowering device, especially subclasses 142+ for a parachute.
248, Supports,
210+, for a bracket peculiar to a ladder, subclasses 235+ for a scaffold type bracket, subclasses 317+ for a suspended support of general utility and subclasses 351+ for a wall-board prop.
254, Implements or Apparatus for Applying Pushing or Pulling Force,
151+, for a cable drum of fire-escape type and subclasses 167+ for suspended cable drums of general utility.
280, Land Vehicles,
4, for a vehicle with a ladder rack, subclasses 32.5+ for a vehicle having a workman's support adjacent the ground, and subclasses 163+ for steps requiring vehicle modification. This class (182) takes mere wheels on a ladder and takes a ladder mounted on a vehicle wherein the mounting supports the ladder in its operative position. 403, Joints and Connections, appropriate subclasses for joints of general utility and particularly
49, for laterally related members connected by latch means.
414, Material or Article Handling,
10+, for a lifting device for use in fastening sheet material to an overhead member or surface; e.g., to a ceiling where there is manipulation of the sheet; subclass 560 for a traversing hoist with diverse material handling means; subclasses 685+ for a vertically and horizontally swinging load support of general application, and subclass 507 for a self-loading or unloading vehicle having a load handling means in the nature of a conveyor and provided with means for supporting a person in working relationship to the conveyor.