Swivel

Fig. 7 shows the torque necessary to obtain the specified body force under construction conditions and in tbe state when removed from the bridge. It can well be seen that the change of the friction coefficient causes a very big scattering, and the necessary torque is much bigger than specified. The distribution of the results of a measurement performed on 1,127 bolts is presented in Figure 8. An average of 80% of nominal body force was found by the new method. The traditional method found the nuts could be swivelled much further than specified on 42 bolts, these bolts were found to have 40 - 60 % body force by the new method. 

The vacustat f (Fig. 11,23,2) is another useful gauge it covers the range 10 to 0 01 mm. of mercury and is usually employed in conjunction with an oil pump. It is direct reading, compact, and is charged with only about 8 ml. of mercury. The gauge must be swivelled to the vertical position when a reading of the pressure is required it does not automatically record a variable pressure. 

Researchers at Du Pont used hydroquinone asymmetrically substituted with chloro, methyl, or phenyl substituents and swivel or nonlinear bent substituted phenyl molecules such as 3,4- or 4,4 -disubstituted diphenyl ether, sulfide, or ketone monomers. Eor example,... 

Tray dryers may be of the tray-truck or the stationary-tray type. In the former, the trays are loaded on trucks which are pushed into the dryer in the latter, the trays are loaded directly into stationary racks within the dryer. Trucks may be fitted with flanged wheels to run on tracks or with flat swivel wheels. They may also be suspended from and moved on monorails. Trucks usually contain two tiers of trays, with IS to 48 trays per tier, depending upon the tray dimensions. 

Leaks in various Periodic replacement of components system compo-. pressure test all lines nents, hoses, valves swivel insure proper materials of construction joints in arm, lance, etc. CCPS G-3 CCPS G-22 CCPS G-29... 

See Sections 4-1.3 (general), 5-3.1 (pipe), and 5-3.3.1 (hose), which also address special grounding cases such as swivel joints. 

Dreh-federwage, /, torsion balance, -feld, n. (Elec.) rotating field, -gelenk, n, swivel joint, -geschwindigkeit, /. speed (or velocity) of rotation or of revolution, -impuls,... 

Wirbel, m. whirl, vortex, eddy whirlwind whorl spiral vertebra Tech.) spigot, button, collar, swivel, sheave, etc. vertigo intoxication crown (of the head) warbling. Wirbel-. whirl-, vortical vertebral, vertebrate, -bein, n. vertebra, -bewegung, /. vortex motion, eddying. 

Swivel and Rotary Hose 616. Drill-Stem Subs 619. Kelly 620. Rotary Table and Bushings 622. 

Drilling hooks The hook that attaches to the traveling block to connect the bail of the swivel. 

Rotary swivel bail adaptors A bail adaptor that allows the bail of the swivel to be grasped and hoisted with elevators. 

Rotary swivels. The swivel connecting the nonrotating hook and the rotating kelley while providing a nonrotating connection through which mud enters the kelley. 

Kelley spinners, when used as tension members An adapter between the swivel and the kelley that spins the kelley for rapid attachment and disattachment to joints of drill pipe. 

Swivel Bearing Rating. The bearing rating of swivels shall be determined by... 

Rotary Swivel Pressure Testing The assembled pilot model of rotary swivels shall be statically pressure tested. All cast members in the rotary swivel hydraulic circuit shall be pressure tested in production. This test pressure shall be shown on the cast member. 

Rotary Hose Safety Chain Attachment. Swivels with gooseneck connections in 2 in. or larger shall have a suitable lug containing a 1 - -in. hole to accommodate the clevis of a chain having a breaking strength of 16,000 lb. The location of the lug is the choice of the manufacturer. 

Figure 4-18. Hook and swivel bail contact surface radii [9].

To replace a worn rope with a new one, a swivel-type stringing grip for attaching the new rope to the old rope is recommended. This will prevent transferring the twist from one piece of rope to the other. Ensure that the grip is properly applied. The new rope should not be welded to the old rope to pull it through the system. 

The inside diameter of socket and swivel-socket baskets should be in. larger than the nominal diameter of the wire rope inserted. Alloy or carbon steel, heat treated, will best serve for sheave grooves. Antifriction bearings are recommended for all rotating sheaves. 

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