Racking platform

Pipe lean The angle between the vertical and a typical stand of pipie with the setback. Racking platform A platform located at a distance above the working floor for laterally supporting the upper end of racked pipe. 

Acetal resins are also used extensively in transportation, especially automotive. Handles and internal components (gears, gear racks, cables) for window lifts and other similar devices are examples. Most of the appHcations which do not involve painting or plating are below the window line. Many common consumer items are manufactured essentially entirely from acetal resin (eg, disposable lighters) or have critical components molded from acetal resin (eg, hubs and platforms for videocassettes). The properties that make acetal resins useful in industrial appHcations make them useful for internal components, especially mechanical drive systems, of many household appHances. 

Multielevation piperacks are usually needed to handle all the required services for piping, electrical, utilities, and instmmentation. The two-level rack is one of the most common but three-level ones are also used. The utility lines are usually mn in the upper level and the process lines in the lower levels. The larger-diameter lines are located to the outside of the rack to be closest to the column supports. Access platforms are required at the battery limit to provide operators access to the block valves and blinds. If long mns of hot pipe are required, a portion of the pipe rack needs to be dedicated to an expansion loop. A horizontal space in the piperack is provided for a set of lines to be flat-turned into a set of expansion loops with the large pipes located on the outside. AH of the pipe turns are in the same horizontal plane, which is an exception to normal piping practice. A flat turn takes up and blocks space for other pipes. Flat turns are generally only made from the outside of the rack to minimize this blockage. 

The location of the pipe in the rack is selected to minimize the congestion and eliminate line crossing. If a process line connects two nozzles which are elevated higher than the piperack, then the upper level of the rack is used. Similarly, if the nozzles are both below the piperack, then the lower level rack is used. Other cases in which one nozzle is below and the other above use the least congested part of the piperack. Lines with valves are more easily accessed from the upper level, but require an access platform. 

Tank car loading racks should be provided with one potassium bicarbonate dry chemical extinguisher (120-B C) at the base of the platform stairway. One (160-B C) unit should also be provided on the platform at every fourth tank car station. In addition, at least one potassium bicarbonate wheeled extinguisher (640-B C) should be located near the rack. 

Structural Steel - Use procedure in Section 19.3 to develop take-offs and cost. Break down by structures and pipe racks and don t forget to identify and estimate miscellaneous service ladders and platforms related to specific equipment items. 

For all cases more than 6 long, racks are moA con-vienent for drying them. These are made of Arips of H X 2 cypress or other light wood, suitable for supporting them. The longer the cases, the farther apart the Arips should be. AVhen fflled with cases they should be moved to a well ventilated room or covered platform. If placed in the sun they will be badly warped wben dry. (Fig, 3) Center and end Arips are x 3. ... 

The platform a runs on tracks 5 b across the deck of tlie vessel, and may be propelled by a co -wheel gearing In the rack t on one of the tracks The carriage proper is plyoted In the center of the platform, and rests on wheels d tL When in firing position the platfbrm is fastened to the deck by pins, one of which is shown at e. 

The lower rack housing, attached to the undersurface of the top plug platform, functions as a seal for the regulating-rod drive shaft and as a means of support for the lower shock absorber. 

Figure 18.1.6 shows the results of emission investigations in the spray-room of a joiner s with and without ventilation. Windows and doors were closed. The vamisher was standing in front of a spray-wall, opposite to him was placed a platform rack truck for shelving the varnished parts. Those areas in the joiner s, which showed roughly the same emission values of n-butyl acetate, are marked on each drawing. 

There is a rack and pinion design traveling platform to allow full access along the length of each conveyor for equipment maintenance and inspection. This same platform would allow for both personnel and component transport between levels and as well as other service functions. 

The operator should not be assigned to step up or down incoming material racks to obtain material. Appropriate material display platforms must be provided. 

After termination of the measures to dismantle the reactor vessel, the containment will be completely cleared of objects and fully cleaned inside. In the lower area, at the elevation of the manipulator (+ 5.0 m), a provisional platform will be installed in the containment. On this platform a ring-shaped rack will be erected on the inner wall of the containment. In the upper area, it will be adjusted to the shape of the containment so that each location of its inner side is accessible. From this rack decontamination of the containment shell will be performed, so that it can be free released and the steel be conventionally recycled. 

High work Work on scaffolds, platforms, pipe racks, or elevated equipment. 

Stacker Cranes. The stacker crane consists of a rigid mast suspended from an overhead bridge that travels laterally. A platform or a set of forks moves up and down on slider bars to lift and lower loads. The stacker crane is most commonly used to place or retrieve loads to and from racks from both sides of an aisle. In automatic storage and retrieval systems, the stacker crane is computer-controlled. The computer has the rack location of each item stored in the memory and is able to command the load-carrying platform to a specific location for storage and retrieval of a load. 

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