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 ?
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.
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.
In one type the upper surface of the scale crown is smooth and flat, and lateral ridges occur as fine longitudinal ridgelets beneath the crown plate.
tuvaensis (see Fredholm 1990; Karatajute-Talimaa 1978, 1990), which have a rhombic crown plate with lateral down-stepped rims and an anterior median notch of the crown, which is sometimes absent in L.
The rounded crown plate performed the best under submerged inlet conditions; the square edge performed the worst.
A lightweight but strong formed crown plate is married to a strong, heavy face and body section.
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.
Another type of transitional scale leads to trunk scales with a rhomboidal smooth and flat crown plate having two to four downstepped spines posterolaterally and one posterior medial spine (P1.
Typical scales of this species have a flat crown plate with 2-4 posterolateral spines (P1.
II BM Unit V Repairing of worn-out skin casing and crown plates around the intersection of radiant SH and re-heater tube area at pent house, arresting flue gas leak in extended side steam cooled wall outlet header left and right area, super heater upper side wall inlet header left and right area during 2015-16 annual overhaul
II BM Unit I Boiler Attending patch-up works in the air ingress area of the pent house and repairing the crown plates / seal plates around the intersection of various headers in pent house during 2015-16 overhaul