In Central and Northern Europe Kielbögen came – with a few exceptions in book paintings – only from the 13./14. The ogee shape is one of the characteristics of the Gothic style of architecture, especially decorative elements in the 14th and 15th century late Gothic styles called Flamboyant in France and Decorated in England. The weights fall inside the ogee moulding supported by pulleys and hidden from view. The aim of a mid-face rejuvenation is to restore the ogee curve and enhance the cheekbones. Century in Late Gothic in use – the earliest examples are commonly some of the Eleanor crosses in England. Ogee arches were a feature of English Gothic architecture in the later thirteenth century. Construction Barabar Caves (Lomas Rishi Cave), Its origin is unquestionably Oriental. Development Ogee arch The cyma reversa is also evident in ancient Greek architecture, and takes its name from the cymatium. The design is usually attributed to Chauncey Jerome. In aesthetic facial surgery, the term is used to describe the malar or cheekbone prominence transitioning into the mid-cheek hollow. Alternative names for such a true Roman ogee moulding include cyma reversa and talon. The centers of the two lower circular arcs lie within, those of the upper circular arcs outside the arch field. Kiel bow window at a house in La Garriga, Spain An ogee is the name given to objects, elements, and curves—often seen in architecture and building trades—that have been variously described as serpentine-, extended S-, or sigmoid-shaped. Jama Masjid, Delhi, India (around 1650), Europe In other words, its shape is more like half of an ellipse. The ogee curve is an analogue of a “cyma curve”, the difference being that a cyma has horizontal rather than vertical ends. It is used in India on a vast scale in those domes which are constructed by corbelling. Ogee is also a mathematical term, meaning an inflection point. It is a kind of sigmoid curve. In architecture, the principal use of the term is to describe an arch composed of two ogees, mirrored left-to-right and meeting at an apex. Ogees consist of a "double curve", the combination of two semicircular curves or arcs that, as a result of a point of inflection from concave to convex or vice versa, have ends of the overall curve that point in opposite directions (and have tangents that are approximately parallel). It is a kind of sigmoid curve. 3rd century BC Chr. Bow-shaped keel arches at the Porte de la Craffe in Nancy, France An ogee is a curve (often used in moulding), shaped somewhat like an S, consisting of two arcs that curve in opposite senses, so that the ends are parallel. The keel arch seems to have its origin in India, where already since the 3rd century BC. Udayagiri and Khandagiri caves, about 2nd century BC Chr. An ogee is a decorative line formed by two connected curves. The term ogee is used due to the ogee shape in radial symmetry around the centre. Origin The term has uses in architecture, mathematics, and fluid mechanics, as well as marine construction… The term has uses in architecture, mathematics, and fluid mechanics, as well as marine construction, clock design and plastic surgery. Mihrab of the mosque of Qus, Egypt (around 1250) Ajanta (Cave 36), about 4th century Udayagiri and Khandagiri Caves (Ranigumpha) Moulding An “ogee clock” is a common kind of weight-driven 19th-century pendulum clock in a simplified Gothic taste, made in the United States for a mantelpiece or to sit upon a wall bracket. Accordingly, these components are referred to as ‘keel bow window’ or ‘Kielbogenportale’. Also, the downstream face of a dam spillway is usually formed in an ogee curve to minimize water pressure. The upper curve is concave, or bowed inward like the inside of a bowl. In late English Decorated and French Flamboyant the ogee arch is used to the greatest advantage. It is rectangular, with ogee-profile moulding that frames a central glass door that protects the clock face and the pendulum. In later times, such entrance designs were in any case converted to windows (kudus) and even later developed from it blind decorative elements (chandrasalas), which were often combined to larger decorative panels (udgamas). Ajanta (Cave 9), Islam Vestibule of the Bedsa Cave, 1st or 2nd century AD Conversely, if the arch is constructed to be a variant of the pointed arch having only a small counter- arch at the tip, it is called “donkey’s back” or “donkey’s arch”; the name derives from the outstanding backbone of the donkey. The background of such a design form is unclear, but similarities to the leaves of the Bodhi tree or to a prayer position prevalent in India with raised hands and pressed over the head obvious; it could, however, also be a purely architectural-aesthetically understood “center emphasis” or “exaggeration”. Mihrab of Dilawar Khan Mosque, Mandu, India (15th c.) For example, a wing may have ogee profile, particularly on supersonic aircraft such as the Concorde. “For the last 3 years I (Manager of the Coptic Aged Care) has been working with Ogee Architects on an enormous building project.The team always conducted themselves in a very professional manner. Kiel bow window at Palazzo Corvaja in Taormina, Italy. The cyma reversa form occurs in antiquity. The door usually carries a painted scene in the area beneath the face. A building’s surface detailing (indoors or out) may have a moulding with an ogee-shaped profile, consisting (going from low to high) of a concave arc flowing into a convex arc, with vertical ends; if the lower curve is convex and higher one concave, this is known as a Roman ogee, although frequently the terms are used as if they are interchangeable and for a variety of other shapes. Elliptical arches form an elliptical curve, and, sometimes, it is a curve that is not a true ellipse, but rather, a combination of circular arcs from either three or five centers. Plastic-shaped keel bows usually have an inner and an outer arch; these may be uniform, but in many cases the inner (lower) arch is a round or pointed arch, whereas the outer (upper) arch is formed as a donkey back. Ogee windows and arches were introduced to European cities from the Middle East. If both lower circle centers coincide in one point, a common shape of the keel arch is created; if they lie apart, the arch receives a more compressed form. Keel bows are particularly often found at the top of a portal or window frame, either as suitably shaped archivolts, lintels or ornamental gables in the form of roofs or crowns. Koran Niche, Lodi Gardens, Delhi, India (15th c.) In France, the ogee arch does not seem to have come into general use till late in the fourteenth century. An “ogee washer” is a heavy washer with a large bearing surface used in marine timber construction to prevent bolt heads or nuts from sinking into the face of timbers. This is due to the integrity of the Project Manager Mr Youssef Gadalla. An ogee is also often used in the “crown moulding” frequently found at the top of a piece of case furniture, or for capping a baseboard or plinth, or where a wall meets the ceiling. In fluid mechanics, the term is used for an ogee-shaped aerodynamic profile. India Eleanor Cross, Hardingstone, around 1300 This enhancement is also commonly a part of a routine facelift. Ogee clocks are one of the most commonly encountered varieties of American antique clocks. Overall, a variety of variations can be observed. Other uses As such it is part of the standard classical decorative vocabulary, adopted from architrave and cornice mouldings of the Ionic order and Corinthian order. Entrances to the Buddhist cave monasteries were designed in this way. In the Persian and Egyptian architecture, they experienced first highlights, but they occasionally appear in the 12th century in the Maghreb and Andalusia. Attention to detail is one of their many outstanding characteristics. The ogee and Roman ogee profiles are used in decorative moulding, often framed between mouldings with a square section. It allows distillate to expand, condense, and fall back into the pot. Quwwat-ul-Islam Mosque, Delhi, India (around 1225) Arch in Dilawar Khan Mosque, Mandu, India (15th century) An ogee is a curve (often used in moulding), shaped somewhat like an S, consisting of two arcs that curve in opposite senses, so that the ends are parallel. An ogee moulding may be run in plaster or wood, or cut in stone or brickwork. For example, in ancient Persia, the Tomb of Cyrus featured the cyma reversa. Kielbogen portal of a church in Dumfries, Scotland In Islamic architecture, keel bows did not come into use until around 1100. In distillation, an ogee is the bubble-shaped chamber of a pot still that connects the swan neck to the pot. Late Gothic seating niche portal with five-fold keel arch (1506) at the Peter Ulrich House in Pirna Due to the size and shape, they are generally manufactured as a cast iron product in accordance with ASTM A47 or A48.