The former kind have for the most part consisted of a circular valve and face, with radial apertures, the valve resembling the outstretched wings of a butterfly, and being made to revolve on its central pivot by connecting links between its outer edges, or by its central spindle.

My head revolved as on a hidden pivot.

An examination of the results of observations had made me dissatisfied with the bearings of the horizontal pivots in their Y's.

On what slight pivots our fate turns sometimes!

There is a well-marked annual periodical change in the position of the Transit Circle, the southerly movement of the eastern pivot having its minimum value in September, and its maximum in March, the extreme range being about 14 seconds; and there is a similar change, but of smaller amount, in the position of the Collimator.

The New England wife-mother was the one little jeweled pivot on which all the wheel work of the family moved.

The social idea and the national idea have been for a century past the twin pivots of European development.

The hub and spokes are supported by a vertical pivot, by means of which the operator is enabled to follow the diurnal motion of the sun, while a horizontal axle, secured to the upper end of the pivot, and held by appropriate bearings under the hub, enables him to regulate the inclination to correspond with the altitude of the luminary.

He is not of opinion, like one of his predecessors, that he assisted at the creation of the world, and that the endurance of Christianity depends upon his clerical pivot; but he believes that he has a "mission," and that on the whole he is quite as good as the majority of Congregational divines.

The greater part of it was a sonorous exposition of ultra-liberal principles, 'Liberté, Egalité, Fraternité,' 'Vox populi, vox Dei,' a very liberal tribute to the vanity and to the prejudices of the classes who might be expected to send their children to the institution or to puff it; with an elaborate pivot à la Lacordairethat the Church had achieved all that had been effected in this genre hitherto.

Vertical partitions under the cheeks of the gun carriages serve as cross braces, and are connected with each other upon the table of the hydraulic pivot around which the entire affair revolves.

The New England wife-mother was the one little jeweled pivot on which all the wheel work of the family moved.