- Related Topics:
- enamelwork
- bronze work
- copper work
- ironwork
- silverwork
Ironwork is fashioned either by forging or casting. Wrought iron is the type of ironwork that is forged on an anvil. There are no fabrication similarities to cast iron, which is poured in a molten state into prepared sand molds.
Wrought iron is fibrous in structure and light gray in color. It can be hammered, twisted, or stretched when hot or cold. The more it is hammered, the more brittle and hard it becomes; but it can be brought back to its original state by annealing (heating and then cooling slowly). It will not shatter when dropped.
From earliest times, the smith has had a forge to heat the iron, an adjacent water tank in which to cool it, an anvil on which to form it, in addition to a wide assortment of hammers and tools. The most important tool is the anvil. The English type, generally used for forging wrought iron, has a flat top surface, which is used as a solid base for hammering the heated iron into shape, for welding, for splitting, or for incising decorative chisel marks in the hot iron. One end of the anvil is shaped like a pointed cone and is used for forming curved surfaces. The other blunt end, or heel, has one or two square or rectangular holes on top, into which fit various tools. From the anvil is derived the expression “to strike while the iron is hot,” and this implies spontaneity and rapid hammer blows. The wrought-iron craftsman should not be expected to repeat with meticulous exactitude one intricate component after another. In fact, wrought iron by a master craftsman is esteemed for the variations that naturally occur.
The individual components of a wrought-iron design are often plain or twisted rods, with or without chisel-mark incisions. They are frequently composed as a series of straight, parallel members or in combination with scrolls, or as a repeat design of some geometric shape such as the quatrefoil. Where two curved members are tangent, they are characteristically secured together by bands or collars, rather than by welding. Where two straight bars intersect, it is accredited craftsmanship to make the vertical bar pierce or thread the horizontal member. Grilles consisting of two series of parallel small-diameter rods, one series at right angles to the other, were sometimes interlaced or woven.
Depending upon the depth of the relief, various fabrication techniques may be employed for repoussé, or three-dimensional, ornamental wrought ironwork. Sheets 1/16 inch (1.6 millimeters) or less in thickness generally are used. The general configuration of the modeling is obtained by beating the back of the sheet; the final details are embossed on the front face. The finer the scale and detail, the more work must be done when the iron is cold. A repoussé design may be pierced; but this term usually connotes a solid sheet forged into a mask, a shield, or an entire embossed panel. The traditional means of setting off a cutout repoussé design was to superimpose it on a vermillion-colored background panel. Modern approximations of repoussé work consist of mechanically stamped designs touched up with random hammer blows.
The most difficult way of decorating iron is to carve it. This involves fashioning figurative or decorative motifs out of the metal ingot with especially strengthened tools, using the material in the same way that the sculptor handles wood or stone. Only very precious iron articles are carved, such as coats of arms or pieces that are specifically designed to be displayed as works of art.
Hanns-Ulrich HaedekeCast iron is melted in a furnace or cupola, stoked with alternate layers of coking iron, then poured into prepared sand molds. After the cast iron cools in the mold, the sand is cleaned off, and the work is virtually complete. Its shape is fixed, and while a casting can be slightly trued up by the judicious use of a hammer, it is in no sense as workable as wrought iron. Thus, ornamental features in cast iron cannot be chased and polished as in cast bronze. If the ornamental cast-iron details are not replicas of the original pattern, the only recourse is to make a new casting. Because it is brittle, cast iron is almost certain to shatter if dropped.
Since it is cast in a mold, certain forms are more suitable to cast iron than to wrought iron. For example, if repetitive balusters, or columns, or panels with low-relief ornamentation are desired, cast iron is the most suitable material.
Gerald K. GeerlingsEarly history
The earliest recorded iron artifacts are some beads, dating from about 3500 bce or earlier, found at Jirzah in Egypt. They are made from meteoric iron, as are a number of other objects of only slightly later date that have been found both in Egypt and Mesopotamia. The earliest known examples of the use of smelted iron are fragments of a dagger blade in a bronze hilt, dating from the 28th century bce, found at Tall al-Asmar (modern Eshnunna), in Mesopotamia, and some pieces of iron from Tell Chagar Bazar, in the same area, of approximately the same date. There is, however, no evidence of any extensive use of iron in either Egypt or Mesopotamia before the end of the 2nd millennium bce. In Asia Minor, on the other hand, iron was probably used regularly from at least as early as 2000 bce; and it seems likely that the first true iron industry was established there in the second half of the 2nd millennium bce.
From the ancient Near East the knowledge of iron working was transmitted to Greece and the Aegean, probably at the beginning of the 1st millennium bce, whence it spread gradually to the rest of Europe. By the 6th century bce, it had been widely disseminated over central and western Europe.
Iron was at first apparently regarded as a precious, semi-magical material, presumably because of its rarity and its connection with meteorites. But once it had become common, as a result of increased knowledge of the technique of smelting ore, it seems to have been used, at least in Europe, almost exclusively for objects of utility. A few Belgic firedogs and at least one amphora, skillfully forged in iron, with decorative terminals in the form of animal heads, are known; but the practice of forging iron into decorative shapes does not seem to have become general until the Middle Ages.
A few cast-iron objects dating from classical times have been found in Europe. The extreme rarity of these, however, suggests that they were only produced experimentally. The earliest known evidence for the general use of cast iron comes from China (see below East Asia: China: Iron), and it does not seem to have been produced regularly in Europe before the 15th century.
Claude BlairBelgium and Holland
The ironwork of these two small countries prior to the 15th century was in no way inferior to that produced elsewhere. Yet so few pieces remain that the significance of craftsmen of the Low Countries has often been underestimated. During the 15th century, design and craftsmen from the Low Countries began to make their influence evident across the channel in England. Representative examples of this period are in the Hervormde Kerk at Breda; the treasury door of the cathedral at Liège; and hinges of the church of Notre Dame, at Hal. The beautiful spires of Bruges, Ghent, and Antwerp should be mentioned.
During the first half of the 16th century, before the Spanish occupation, there were diversified forms of ironwork, such as protective grilles for doors, windows, and chapels, often in fleur-de-lis patterns; window gratings of vertical bars, frequently octagonal in section; and interlacing bars, producing rectangular or lozenge-shaped patterns. Only a few examples still exist: some lunettes in the Hôtel de Ville of Brussels; a tabernacle grille from the chapel of the counts of Flanders and a window grille from the Cathedral of St. Bavon, both from Ghent; and hinges at the Hôtels de Ville of Bruges and Ypres (Flemish Ieper). Few Renaissance screens have survived.
During the second half of the 16th century, the cruelty of the Duke of Alba and his 20,000 troops, together with the threat of the Inquisition, drove hundreds of artisans to England. After the Spanish domination there was little indigenous design in Holland and Belgium, and such ironwork as was produced fell under the spell of French imports.
Gerald K. GeerlingsEngland
The initial use of wrought iron was purely protective because violent attacks were frequent, and doors had to be strengthened with massive ironwork inside and out. Window openings, especially those of the treasuries of mansions and cathedrals, were for similar reasons filled with strong interlacing bars of solid iron; a good example remains at Canterbury cathedral. When, in the course of time, the need for protective barriers ended, there was greater freedom of work and a definite trend toward ornamentation. Throughout England, medieval church doors are found with massive iron hinges, the bands worked in rich ornamental designs of scrollwork, varying from the plain hinge band, with crescent, to the most elaborate filling of the door. Examples exist at Skipwith and Stillingfleet in Yorkshire, many in the eastern counties, others in Gloucester, Somerset, and the west Midlands. The next important application of ironwork came with the erection of the great cathedrals and churches, whose shrines and treasures demanded protection. Winchester Cathedral possesses the remains of one screen with a symmetrical arrangement of scrollwork. Tombs were enclosed within railings of vertical bars with ornamental finials at intervals, such as that of the Black Prince at Canterbury. A new development appeared in the early years of the 15th century when the smith, working in cold iron, attempted to reproduce Gothic stone tracery in metal. This work was more like that of a woodworker than of a smith, often consisting of small pieces of iron chiseled and riveted, and fixed on a background of sheet iron. Many small objects such as door knockers, handles, and escutcheons were executed in the same manner. A typical monumental example is in Henry V’s chantry at Westminster Abbey; but the most magnificent is the great grille at St. George’s Chapel, Windsor, made to protect the tomb of Edward IV.
The development of the art of smithing during the Renaissance period was very uneven in the various countries of Europe. In 16th-century England the smith fell behind and seemed to have lost interest, producing no very great or important work. He continued to make iron railings, balconies, and small objects for architectural application, such as hinges, latches, locks, and weathercocks. But toward the end of the 17th century, there was a growing interest in beautifying houses and laying out gardens and squares, with a commensurate demand for balconies, staircases, and garden gates. The man to whom the credit is usually given for the revival of ironwork in England was Jean Tijou, a Frenchman who, together with many of his Protestant fellow craftsmen, had been forced to leave his country owing to the revocation of the Edict of Nantes in 1685. After some years in The Netherlands he went to England in 1689, where he enjoyed the patronage and favor of William III. His most important works for his royal patron are to be seen in the immense mass of screens and gates with which he embellished Hampton Court palace. He also executed work at Burleigh house, Stamford. Probably by the Queen’s wish he was associated with the architect Sir Christopher Wren, then engaged on the rebuilding of St. Paul’s Cathedral. Wren apparently did not particularly like ironwork and probably exercised some restraint on Tijou, with the result that his work at St. Paul’s is more dignified and freer from appendages than that of Hampton Court.
There is a great amount of fine ironwork of the 18th century in London in the form of gates, railings, lamp holders, door brackets, balconies, and staircases; in almost every suburb there are gates and brackets. The precincts of the colleges of Oxford and Cambridge, as well as almost every old town in England, furnish a variety of handsome work. Throughout the 18th century the smith was a busy man; the general tendency of his work, unaffected by the Rococo movement on the Continent, was toward a less ornate but more characteristically English style—perpendicular, severe, lofty, and commanding, as contrasted with Tijou’s French love of richness and mass of details.
At the end of the 18th century the work of the architect brothers Adam shows a departure from true smithing; its slender delicate bars are enriched with rosettes, anthemia, and other ornament in brass or lead. The effect is pleasing and harmonizes with the architecture with which it is incorporated.
During the first half of the 19th century, the art of the smith was largely eclipsed by that of the iron caster. But under the stimulus of the Victorian Gothic revival and later of the Art Nouveau movement, there was a renewal of interest in the decorative use of wrought iron, and much excellent work was produced.
