centrings

For mounting, the shaft ends of the motors have got centrings with threaded bores.

7. Mounting and connection of motors Werner Boschitsch 1991

The dome, built without timber centrings, consists of two vast vaults, an interior and an exterior, both supported by strong ribs at the right angles, and surrounded at the base by a strong iron chain.

The South of France—East Half C. B. Black

But lower down we found a stony gorge with which George was satisfied; he traced out a line for a railway by which, of their own weight, the brick-cars could run to the centrings; he showed us where, with some excavations, the fly-wheels could be placed exactly above the great mill-wheels, that no power might be wasted, and explained to

The Brick Moon, and Other Stories 1899

Three of the lowest moonlets, as I have called them, -- separate croquet-balls, if you take my other illustration, -- had been completed; their centrings had been taken to pieces and drawn out through the holes, and were now set up again with other new centrings for the second story of cells.

The Brick Moon, and Other Stories 1899

Three of the lowest moonlets, as I have called them, — separate croquet-balls, if you take my other illustration, — had been completed; their centrings had been taken to pieces and drawn out through the holes, and were now set up again with other new centrings for the second story of cells.

The Brick Moon, and Other Stories 1899

The _groin-ribs_, intersecting at the centre of the vault, divided each bay into four triangular portions, or _compartments_, each of which was really an independent vault which could be separately constructed upon light centrings supported by the groin-ribs themselves.

A Text-Book of the History of Architecture Seventh Edition, revised 1890

Ingenious processes for building vaults without centrings were made use of -- processes inherited from the drain-builders of ancient Assyria, and still in vogue in Armenia,

A Text-Book of the History of Architecture Seventh Edition, revised 1890

Accordingly, a skeleton of light ribs was first built on wooden centrings, and these ribs, when firmly “set,” became themselves supports for intermediate centrings on which to cast the concrete fillings between the ribs.

A Text-Book of the History of Architecture Seventh Edition, revised 1890

These were constructed independently of the vaulting, and the four or six compartments of each vaulting-bay were then built in, the ribs serving, in part at least, to support the centrings for this purpose.

A Text-Book of the History of Architecture Seventh Edition, revised 1890

As ordinarily constructed, a groined vault like that in Fig. 47, must be built as one structure, upon wooden centrings supporting its whole extent.

A Text-Book of the History of Architecture Seventh Edition, revised 1890