crown plate

crown plate

1. Same as bolster.
2. A longitudinal structural member at the apex of a roof that supports the upper ends of the rafters.
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References in periodicals archive ?
The ascending canals turn horizontally when they reach the crown plate and run in the basal parts of the growth lamellae, giving off numerous very fine dentine tubules.
WRU chairman David Pickering and president Dennis Gethin travelled from Cardiff to the spinal injuries unit at Southport Hospital, as well as the Triple Crown plate and a shield for the Under-20s World Cup.
The sight of Manon and Gwenan Gravell, daughters of the late, great Ray, accompanying 50-cap Ian Gough out onto the field with the Triple Crown plate warmed the heart.
This birthday 10-inch crown plate costs pounds 29.74 from Edward's China Shop and is available at www.edwardschina.co.uk.
The scales from the Tahula Beds in our material show traceable transitions from typical cruciform head (or rostral) scales, through scales with a flat and smooth crown plate, into elongate posteriorly ridged trunk and pinnal scales.
Trunk scales with rhomboidal smooth and flat crown plate, or crown surface is ridged; scales carry up to four spines posterolaterally of crown and one medial spine beneath posterior crown apex; neck as shallow groove; anterior spur-like projection present in posterior trunk scales and in those positioned posteriorly on fins.
* A distinct difference in performance exists between square-edged crowns, beveled crowns, and rounded crown plates for box culvert models with straight wingwalls under submerged conditions.