Wikimedi'Òc

1581 Galileo escapement - Franklin Institue - DSC06663.JPG - Daderot

1660 English escapement - Franklin Institue - DSC06664.JPG - Daderot

1675 anchor recoil escapement, G. Clement, London - Franklin Institue - DSC06665.JPG - Daderot

1710 verge escapement - Franklin Institue - DSC06668.JPG - Daderot

1740 Sully's marine clock escapement - Franklin Institue - DSC06669.JPG - Daderot

1760 escapement by James Ferguson - Franklin Institue - DSC06666.JPG - Daderot

1770 double pinwheel escapement - Franklin Institue - DSC06667.JPG - Daderot

1850 MacDowall single pin escapement - Franklin Institue - DSC06671.JPG - Daderot

1850 silent escapement for night clock, Italy - Franklin Institue - DSC06670.JPG - Daderot