Turret

Ship-shaped FPSOs must be designed to weather vane i.e. must have the ability to rotate in the direction of wind or current. This requires complex mooring systems and the connections with the well heads must be able to accommodate the movement. The mooring systems can be via a single buoy or, in newer vessels designed for the harsh environments of the North Sea, via an internal or external turret. Figure 10.33 shows a schematic of the Shell-BP Foinaven FPSO. 

Horizontal rotary machines employ multiple molds in a horizontal plane on a rotary turret. As each mold approaches the extmder die exit, it opens to accept the parison and then closes. The parison is then blown into the bottle shape. The extmder must extmde on an intermittent basis or be intermittently withdrawn to provide a parison for each passing mold. 

Vertical rotary molds also employ multiple molds on a turret but rotate in a vertical plane. As each mold reaches the die exit, it grasps the parison and closes. Because of the vertical spacing between molds, intermittent extmder action is not required. Vertical wheels are used commercially for high volume apphcations. 

The ribbon machine employs a puff-and-blow method to make incandescent light bulb envelopes (1200/min), dashbulb envelopes (2000/min), Christmas tree ornaments, and the like (Fig. 15). For larger articles, the turret chain machine also uses the puff-and-blow method, but produces less cuUet and uses individual glass gobs rather than ribbon. 

In rniiller mixers the rotation of the circular pan or of the plows brings the material progressi elv into the path of the rniillers, where the intensh e action takes place. Figure 18-46 shows one tvpe of mixer, in which the rniillers and plows re ol e around a stationaiw turret in a stationaiw pan. The outside plow rno es material from the crib wall to the path of the following rniiller the inside plow rno es it from the central turret to the path of the other rniiller. The rniillers crush the material, breaking down lumps and aggregates. 

Without haffles Drum, either horizontal Ball mill Rihhon Countercurrent, muller turret and Hammer mill Filhng of hoppers... 

Diagrammatic sketches of many of these machines are shown in Fig. 19-9. f There is also a mnller in which the turret is stationary hut the pan rotates. 

Batch stationary pan, rotating turret Continuous stationary pan, rotating turret... 

This would give 125 tons/h with a 2 /2-min residence time. Turret speeds are 24 r/min. 

It should have a lamp turret capable of holding at least four hollow cathode lamps with an independent current stabilised supply to each lamp. 

In the normal runs one irradiates the total volume over the leak. Provisions are also made for placing a collimating slit between the leak and the alpha source. The collimating slit was cut in a turret of 6-mm. diameter which screwed onto a leak-carrying cone provided with threads. The slit was elevated over the plane of the leak by unwinding the turret a certain number of revolutions. 

At present, and in the immediate future, one can anticipate the continual vying of one manufacturer with another over relatively minor improvements, with possibly significant advances in instrumentation, automation, and hygiene. However, several easy-to-clean high-output presses are currently manufactured. Most Kikisui models are self-cleaning and allow for the entire turret area to be filled with solvents and cleaned by running the press. 

In this type of machine the operating cycle and methods of filling, compression, and ejection are different from those of single-station presses and are summarized in Fig. 15. More specifically, the dies and punches are mounted on a rotating turret. 

Specie consideration should be given to the inslcllotion of Are hydrants ond turret nozxles... 

Turret or tool-chip level - actual transformation of material. 

Energy Research on the Turret Level (Theoretical Process Energy)... 

The lowest and most focused manufacturing level is the turret level, which represents the actual material transformation process itself. Energy assessment and management at this level involves knowledge of the interactions of the mechanical and chemical processes in order to establish theoretical energy consumption values of the process. 

The research and application of improvement in energy efficiency at the turret level is highly process specific and therefore less appropriate to general application. As a reflection of this, less research has been published at this level. Most research is evaluative with little scope provided for developing models. Consequently, only a few examples reviewed here are used in further analysis in this chapter. 

Positioning the EM techniques reviewed in this chapter into a research map (Figure 5) that has manufacturing level and decision timescale as its axes reveals almost intuitive results. The more focused (lower manufacturing level) an EM technique, the shorter the timescale on which decisions can be made adjusting machine setup parameters (turret level) can be done by one person in a few minutes, whereas reconfiguring a supply chain (enterprise level) will take a team of people months or even years. In the research map, this correlation seems linear, but since the x-axis is not continuous and the y-axis is not quantitatively scaled, a strict correlation is undefinable and inappropriate. Nonetheless, there are clear areas of the map that are not occupied by any of the reviewed EM techniques, and it is therefore suggested that there is a need for research to be undertaken to address these areas. 

Two of these symbol combinations you have already encountered in your practice the Akasha-Tejas symbol on the door-plate of the Chapel of the Rose-Croix, denoting the Sun center, and the Apas-Apas glyph on the door into the Turret Room, the Moon chakra. The others will become apparent when we complete the Tower of the Art. 

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