Adjustment sleeve

Shaft Bearing—Radial 105 Shaft Adjusting Sleeve... 

Shaft Adjusting Sleeve 105A Sleeve Lock Nut... 

Fig. 28.2 Photo of LMDE and schematic of pintle design ntilizing translating orifice adjusting sleeve [6] to control both fuel and oxidizer flow areas simultaneously...

The adjustment sleeve is used to protect the blow pin and the blow mold during setup of the mold. The (bronze) sleeve is placed into the blow opening of the closed mold. This sleeve makes it possible to center the blow pin with the blow opening of the mold (radial centering). The axial adjustment is then done with the cylinder stroke. 

Fig. 23(C) shows a reflux assembly with a stirrer fitted. The stirrer A is both held in position in the tube B and allowed to rotate freely by the lubricated rubber sleeve C, as described on p. 39, and is connected to a vertical motor above. The extent to which the stirrer dips into the liquid in the flask can readily be adjusted. The condenser (not shown) is fitted into D. This constitutes for many purposes the best type of stirrer. If desired, the rubber sleeve C can be replaced by a metal fitting E for a horizontal drive. The gas-inlet F is closed when not in use.

Fit a three necked 250 ml. flask with a central rubber-sleeved or mercury-sealed stirrer, c/. Fig. 23(c), p. 45, where only two necks are shown, and with a thermometer the bulb of which reaches as near the bottom of the flask as the stirrer allows the third neck will carry at first a dropping-funnel and later a reflux condenser. Place 20 g. (19-5 ml.) of ethyl acetoacetate and 45 ml. of glacial acetic acid in the flask and by ice-water cooling adjust the temperature of the stirred mixture to 5 -7° maintain this temperature whilst adding a solution of 5 4 g. of sodium nitrite in 8 ml. of water slowly from the dropping-funnel during 15 minutes. Continue the stirring for 20-30 minutes, and then... 

Too many gland adjustments will cause the packing to crystallize and burn, which will shorten the packings useful life and damage the shaft or pump sleeve. 

For adjustment and for monitoring the cathodic protection, test points are necessary along the cable (see Section 10.3.2). It is convenient to install these test points at the cable sleeves. This gives distances between test points of about 0.5 km. The installation of test points to measure conduit current is also convenient for locating accidental contacts. 

Direct Indicating Viscometer. This is a rotational type instrument powered by an electric motor or by a hand crank. Mud is contained in the annular space between two cylinders. The outer cylinder or rotor sleeve is driven at a constant rotational velocity its rotation in the mud produces a torque on the inner cylinder or bob. A torsion spring restrains the movement. A dial attached to the bob indicates its displacement. Instrument constants have been so adjusted that plastic viscosity, apparent viscosity, and yield point are obtained by using readings from rotor sleeve speeds of 300 and 600 rpm. 

Mechanical seals offer a more reliable seal than compressed packing seals. Because the spring in a mechanical seal exerts a constant pressure on the seal ring, it automatically adjusts for wear at the faces. Thus, the need for manual adjustment is eliminated. Additionally, because the bearing surface is between the rotating and stationary components of the seal, the shaft or shaft sleeve does not become worn. Although the seal will eventually wear out and need replacing, the shaft will not experience wear. 

Thrust bearings that are integral with the driver shall meet the requirements of 3.1. Thrust bearings and housings integral with the pump shall meet the apphcable requirements of 2.9.1 and 2.9.2. To allow axial rotor adjustment and oil lubrication, the thrust bearing shall be moimted with an interference fit on a slide-fit, key-driven sleeve. 

The glass sleeve A can be raised or lowered in the cone. a,so4 and the pressure in the combustion tube altered thereby. With a head of 5—7 cms. of HgSO and proper adjustment of the packing plug in the combustion tube, air ought to pass through the apparatus at the rate of 3—4 c.cs. per... 

Rubber cushion, large Anchoring screw Height adjusting washer Spacing sleeve Anchoring foot... 

Sun and planet chucks have tubular jaws, covered with resilient, sleeves of woven, asbestos cloth. They are most convenient for holding bulbs and flasks, and rarely damage tubes. However, long lengths of tube, supported in sun and planet chucks, tend to rotate off-centre. Because there is considerable backlash in the gears used to move the chuck arms, they can be difficult to adjust so that all tube sizes are held concentrically. 

Float and rod types work with a ball with a hollow sleeve that slides up and down on a rod that extends down into the bed. The ball weight can be adjusted to float on top of the bed of solids. 

In a 500 mL round-bottomed flask are placed molybdenum pentachloride (65 g, 238 mmol), anhydrous aluminum chloride (140 g, 1.05 mol), and aluminum powder (8.5 g, 315 mmol), and the mixture is mixed well. To the mixture, benzene (250 mL) is added slowly over a period of ca 15 min. If the temperature of the contents increases too much on addition of benzene, the flask should be cooled by an ice bath. After the reaction mixture has cooled to room temperature, the flask is shaken well to mix the contents and a reflux condenser is attached. A Teflon sleeve should be put on the flask joint to prevent it from freezing and the condenser should be tightly wired to the neck of the flask. The nitrogen pressure is adjusted as 15-17 psi using mercury bubbler. The flask is immersed in the oil bath and the temperature of the bath is raised gradually to 120 °C. After refluxing for 12 h, the mixture is cooled to room temperature and the flask is shaken to mix the contents well. Then the flask is heated again under reflux for 12 h. After the flask has cooled to room temperature, the benzene layer is removed by... 

Semi-liquids are usually dosed by volume using either an adjustable rotary pump or a piston and sleeve valve filler. Again the dip tubes which retract with the level of the fill help in controlling the amount of spillage. 

Beyond the usual bellows and blowpipe, the tools of the glass-blower are few and simple, since he relies more on his skill than on the tools to produce the desired results. Yet a few words about them may be of some advantage. The blowpipe largely used is of the Herapath type, and the one illustrated in Fig. i, and obtainable of any dealer in scientific requisites, is provided wdth a muldplicity of adjustments, which is greatly in its favour. In addition to the adjustable cocks for the air and gas supply, it has also the different sizes of jets and the flexibility of a universal joint to produce the particular types of fiame required in any direction according to the needs of the work in hand. In the use of this type of blowpipe care must be exercised to keep the air jet central and the external sleeve A drawn out a few milli-... 

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