dog iron, dog anchor
A short bar of iron with its ends bent at right angles and pointed so as to hold together the two pieces […]
A short bar of iron with its ends bent at right angles and pointed so as to hold together the two pieces […]
An arch, usually segmental and often a blind arch, built above the lintel of a door or window to discharge
A shafted impost, where the arch moldings are different from the moldings of the pier from which the arch springs.
A water purification process in which water is converted to a vapor by boiling it, and then reconverted to purified water by
1. In sanitary engineering, a box in which the flow of effluent from a septic tank is distributed equally into the
A half-turn stair which has no wellhole between successive flights; the rail and balusters of the upper and under flights fall in the
1. An ornament in medieval architecture and derivatives, of more or less elaborate motif, usually pyramidal with notched sides, the
A horizontal band of bricks, or course, that is laid diagonally on edge; each brick is set so that one corner projects