Part 6 (2/2)

89. _Invected._--Having a border or outline composed of semicircles or arches, with the convexity outward. The opposite of engrailed.

90. _Inverted Arch._--An arch placed with the crown downward; used in foundation work.

91. _Keystone._--The central or topmost stone, A, of an arch, sometimes decorated with a carving.

92. _King Post._--A member, A, of a common form of truss for roofs. It is strictly a tie intended to prevent the sagging of the tie beam, B, in the middle. If there are struts, C, supporting the rafters, D, they extend down to the foot of the _King Post_.

93. _Label._--The name given to the projecting molding, A, around the top of the door opening. A form of mediaeval architecture.

[Ill.u.s.tration: _Fig. 94.-Fig. 104._]

94. _Louver._--The sloping boards, A, set to shed rain water outward in an opening of a frame, as in belfry windows.

95. _Lintel._--A horizontal member. A spanning or opening of a frame, and designed to carry the wall above it.

96. _Lug._--A. projecting piece, as A, to which anything is attached, or against which another part, like B, is held.

97. _M-Roof._--A kind of roof formed by the junction of two common roofs with a valley between them, so the section resembles the letter M.

98. _Mansard Roof._--A hipped curb roof, that is, a roof having on all sides two slopes, the lower one, A, being steeper than the upper portion or deck.

99. _Newel Post._--The upright post at the foot of a stairway, to which the railing is attached.

100. _Parquetry._--A species of joinery or cabinet work, consisting of an inlay of geometric or other patterns, generally of different colored woods, used particularly for floors.

101. _Peen._ also _Pein._--The round, _round_-edged or hemispherical end, as at A, of a hammer.

102. _Pendant._--A hanging ornament on roofs, ceilings, etc., and much used in the later styles of Gothic architecture where it is of stone.

Imitated largely in wood and plaster work.

103. _Pentastyle._--A pillar. A portico having five pillars, A, is called the _Pentastyle_ in temples of cla.s.sical construction.

104. _Pedestal._--An upright architectural member, A, right-angled in plan, constructionally a pier, but resembling a column, having a capital, shaft and base to agree with the columns in the structure.

[Ill.u.s.tration: _Fig. 105.-Fig. 117._]

105. _Pintle._--An upright pivot pin, or the pin of a hinge; A represents the _pintle_ of a rudder.

106. _Portico._--A colonnade or covered structure, especially in cla.s.sical style, of architecture, and usually at the entrance of a building.

107. _Plate._--A horizontal timber, A, used as a top or header for supporting timbers, roofs and the like.

108. _Queen Post._--One of two suspending posts in a roof truss, or other framed truss of simple form. Compare with _King Post._ A, B, tie beam; C, C, queen posts; D, straining piece; E, princ.i.p.al rafter; F, rafter.

109. _Quirk Molding._--A small channel, deeply recessed, in proportion to its width, used to insulate and give relief to a convex rounded molding. An excellent corner post for furniture.

110. _Re-entering._--The figure shows an irregular polygon (that is, many-sided figure) and is a re-entering polygon. The recess A is a re-entering angle.

111. _Rafter._--Originally any rough and heavy piece of timber, but in modern carpentry used to designate the main roof support, as at A. See _Queen Post_.

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