before the point os the sock, and upon a line with the lest side of the head. ... It is fixed to the head at B, in such a manner as to make the angle contained between the lines A B and B D about 25 degrees. ... There are also different holes for the hind-bolt to pass through, by which the draught may be fixed either above oranbsp;...
|Title||:||Encyclopædia Britannica: or, A dictionary of arts and sciences, compiled by a society of gentlemen in Scotland [ed. by W. Smellie].|