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<p>[QUOTE=&quot;springfld.arsenal, post: 411603, member: 54&quot;]Hmmm, let’s try this.</p><p><br /></p><p>[ATTACH=full]143393[/ATTACH]</p><p><br /></p><p>a.&nbsp; Iron frame, screws to something long gone.</p><p>b.&nbsp; Spindle assembly</p><p>c.&nbsp; Upper arm</p><p>d.&nbsp; Lower arm</p><p>e.&nbsp; Horizontal movement knob, makes entire b. Move right or left in this picture.&nbsp; B remains at constant angle with a.</p><p>f.&nbsp; Knob making c and d. Get closer together or further apart, Depending on direction turned.</p><p><br /></p><p>There is no place for a thumbscrew in the ring at end of c.[/QUOTE]</p><p><br /></p>

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