ASME B20.1-2021 pdf download

ASME B20.1-2021 pdf download.Safety Standard for Conveyors and Related Equipment.
(a) a covering, barricade, grating, fence, or other form of barrier used to prevent inadvertent physical contact with operating components, such as gears, sprockets, chains, and belts
(b) a structure mounted below an overhead mounted conveyor to protect personnel from falling materials
guarded: not exposed to contact, shielded, fenced, enclosed, or otherwise protected by means of suitable enclosures, covers, casings, shields, troughs, railings, or by nature of location so as to reduce risk of personal injury from accidental contact.
guarded by location: describes moving parts so protected by their remoteness from the floor, platform, walkway, or other working level or by their location with reference to frame, foundation, or structure as to reduce risk of accidental contact by persons or objects. Remoteness from regular or frequent presence of public or employed personnel may, in reasonable circumstances, constitute guarding by location. Unprotected danger points and areas that are inaccessible to the operating personnel in the normal performance of their duties shall be considered guarded by location.
hazard: a potential injury producer (see also danger).
hold-down wheels: wheels or rubber tires used to hold the belt down when a belt conveyor changes direction without a vertical belt curve. These wheels or tires may be mounted on the belt edge outside the material flow or in the center of the belt. Hold-down wheels that are located within the material stream may be fixed or movable and ride on top of the conveyed product when material is present.
hopper: a box having a funnel-shaped bottom or a bottom reduced in size, narrowed, or necked to receive material and direct it to a conveyor, feeder, or chute.
inactive controls: those controls that are not a part of, or do not contribute to, the present or future contemplated use ofthe conveyor or system as presently installed and wired.
integral machine transfer device: a part of a machine that loads, unloads, or transfers material (parts) from one location to another within the machine, during processing of the material, and without which the machine could not perform its function. Typically, both the machine and transfer device are supplied together and share the power and control systems.
limit switch: an electrical device by which the movement of a conveyor and allied equipment may be controlled within predetermined limits.
material lift: an elevator that has been designed/modified for the purpose of transporting materials that are manually or automatically loaded or unloaded (see ASME 17.1 for safety requirements).
qualified person: a person who, by possession of a recognized degree or certificate of professional standing or by extensive knowledge, training, and experience, has successfully demonstrated his/her ability to solve problems relating to the subject matter and work.
rail:
(a) one of the longitudinal members in a conveyor frame
(b) the supporting surface under the wheels or rollers of a chain conveyor
(c) the supporting track for equipment mounted on wheels, such as belt tripper, weigh larry, etc.
(d) the vertical members that guide the pendant trays, cars, or carriers in a suspended vertical tray conveyor
rail clamp: an attachment or device for clamping a mobile conveyor or belt tripper to the rail to hold it in a fixed location.
railing guard (guardrail): a structure consisting of rails and posts, including top rail, post, and, where required, toeboards.
rail stop: a stop mounted on the conveyor rails to limit the travel of traversing machinery.
rated capacity: the capacity at the rated speed, as established by the manufacturer or a qualified person, at which safe and satisfactory service can be expected.
rated speed: the speed of the conveyor, as established by the manufacturer or a qualified person, at which safe and satisfactory service can be expected.
remote control: any system of controls in which the actuator is situated in a remote location.