Clamp supports

Magnetic stir plate 50-ml buret Buret clamp Clamp support Stopcock Small glass funnel... 

Solid adhering to the walls of the flask can be dislodged by loosening the clamp supporting the flask and using the condenser as a lever to swirl the flask. 

Fig. 7.68 If you tighten two- or three-fingered clamps or clamp supports (dark arrows), it is important to relieve the stress that is created on the glass by heating the connecting glass (hollow arrows).

When using clamps, support rings and support stands make sure that the clamped/supported apparatus is always in position above the base of the support stand (Fig. 5.4) to prevent the stand toppling over. 

The figures in the table above have been obtained by interpolation. The values in the tables are accurate for the Dj/Dj ratios quoted. The correlation is not necessarily linear, particularly for the case of clamped supports, and hence compensatory factors have been included in some of the tables. (The values in the above table do not include these factors.)... 

The use of structural and loading symmetry to show that a beam with one clamped support is equivalent to another beam with only simple supports (a) a tip loaded cantilever beam is equivalent to a simply supported beam (b) a propped cantilever beam Is equivalent to a two-span simply supported beam (c) load versus support rotation response of a two-span, simply supported continuous 102 x 102 x 6.4 mm pultruded GFRP WF beam (reproduced with permission of Net Composites Ltd (Turvey, 2011)). 

The load is dependent upon the displacement, e.g. spring force Fp = —cpAl. In this case, the origin of the diagram does not move, but the maximally achievable elongation is reduced by the factor cp/(cp - - cp) (see Fig. 6.17b). In the extreme case cp —> oo (fixed clamp support of the transducer), the transducer achieves its maximal force, the so-called clamping force or blocking force which also follows from (6.2), if 5 = 0. 

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