Clamps plain

A Clamp on a Plain Piece of Metal. Before the clamp (or some equivalent cover, see Fig. 12.31) is placed on a metal sheet immersed, say, in saline water in contact with air, the pQ is the same everywhere along the surface of the sheet of metal and Ap is zero, so no electrochemical reaction—no corrosion—occurs. However, the clamp prevents access of 02 to the metal under it and therefore Ap becomes finite. Around the clamp there is usually a large area that is excellently aerated and able to supply electrons for the reduction of 02. Of course, the electrons to do this have to come from somewhere in the underlying metal. In such a system, there is no... 

Fill one of the thistle tubes with plain water. Cover the mouth with the cellulose wrapping paper and hold it firm with a rubber band. Invert the thistle tube and place it in the jar of sugar solution (jar No. 1). With the clamp, attach the thistle tube to the upright stand at such a height that the paper is well below the surface of the sugar solution. (The diagram shows you how to fix your... 

Fill jar No. 2 with plain water. Put cup of warm water in the other thistle tube and add 3 teaspoonfuls of copper sulfate to it. Then cover the mouth of the thistle tube with wrapping paper, and invert the thistle tube in the jar of plain water, as you did before. Hold it in the right place with the clamp. Allow this to stand overnight also. 

FIG 4.15. Bench-top accessories (a) cork stoppers with and without blowing tubes and handles (b) rubber tube plug, or policeman (e) Ribber blow-tube witli plain mouthpiece (d) laboratory stand with two clamps. 

In yam pullout test a rectangular fabric sample (for simplicity a plain pattern is considered here) is clamped to the two opposite side of a U frame. The pullout force is applied to a single yam (for instance at the middle) with a specific free end length as shown in Figure 1. The yam is pulled out in three steps, the detail of which will be given in the discussion part of the chapter. 

When the workpiece has to be positioned at 90° to the reference surface, it can be clamped to an angle plate (Fig. 3.10). Angle plates are usually made from cast iron and the edges and faces are accurately machined flat, square and parallel. Slots are provided in the faces for easy clamping of the workpiece. Angle plates may be plain or adjustable. 

In its simplest form the feed tube is a plain cylindrical tube. A clamp or flange holds it on a support extension from the main frame. It extends to the feed zone and within a few centimetres of the accelerator in the feed zone. 

A wide, short, and thin sheet of rubber, Lo is clamped along its wide edges and pulled from its original length Lo to L with a force f. This deformation is called planar extension, plain strain, or sometimes pure shear. Assume neo-Hookean behavior, eq. 1.5.2. 

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