Here the crane-post is extended into a long mast and is furnished with pivots at the top and bottom; the mast is supported by two " back ties," and these are connected to the socket of the bottom pivot by the " sleepers."
Above, and revolves either on upper and lower pivots supported by the structure of the workshop, or on a fixed pillar secured to a heavy foundation.
There are two soft iron tongues, n, s, fixed upon and at right angles to an axle a, which works on pivots at its ends.
The knuckle stands open until the coupling is pushed against another coupling, when the two hooks turn on their pivots to the position shown in fig.
There was general agreement on foreign policy, whose pivots were close alliance with Czechoslovakia, the series of bilateral agreements which made up the Little Entente (Czechoslovakia and Yugoslavia Aug.