Cog 3

cog3.svg

<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="100" height="100" viewBox="0 0 100 100" preserveAspectRatio="xMidYMid meet">
<mask id="c">
  <rect width="100" height="100" fill="#fff"/>
  <circle cx="50" cy="50" r="53" fill="none" stroke="#000" stroke-width="22" transform="rotate(297.843 50 50) rotate(13.5333 50 50)" stroke-dasharray="33.3">
  <animateTransform additive="sum" attributeName="transform" attributeType="xml" dur="5s" repeatCount="indefinite" type="rotate" values="0 50 50; 360 50 50"/>
  </circle>
  <circle cx="50" cy="50" r="30"/>
</mask>
<circle cx="50" cy="50" r="50" fill="gold" mask="url(#c)"/>
</svg>