An oil lamp is any vessel that holds oil and an absorbent wick and produces continuous heat or light when lit. The most basic oil-lamp formâ€”a shallow dish filled with oil or grease and a partially submerged wick or ragâ€”was used from biblical times to the Victorian era. Do-it-yourself "slut lamps" could be made by dipping a rag in fat or lard, stuffing it into a bottle mouth, and lighting it. The term "slut lamp" eventually became synonymous with lamps using grease as fuel.
Dish oil lamps, usually made of pewter or iron, were popular with American colonists, even though they only gave off weak, flickering light and produced clouds of smoke. In that way, these oil lamps were similar to the other widespread light source, candlesâ€”both oil and wax were eventually employed in hanging chandeliers and wall sconces.
The simplest colonial oil lamps were iron saucers with one or two lips to hold the free-floating wick. These classic lamps were similar to ones used by ancient Greeks, Romans, and Assyrians. Oil lamps with more than two lips for wicks were called "crusies," "chills," or "cressets." A favorite lamp shape was a pan with one channel on the side to receive the wick and a handle on the opposite side. The handle was often linked by an iron chain to an iron boat-hook-shaped spike, used for securing the lamp on a shelf or mantel.
In colonial times, two design innovations were particularly well-received. The first was the "phoebe lamp," which contained a small one-channel lamp set within a larger one-channel lamp, so that the drippings from the smaller lamp would not fall to the floor. Even more popular was the "betty lamp," which featured a hinged lid and a thin metal channel of iron that fed the wick directly to the bottom of the pan. Betty lamps also had a curved handle and mantel hook, as well as a pick to loosen the wick when it got stuck. Some betty lamps were even mounted on adjustable stands.
A popular spin on the betty lampâ€”the Ipswich Betty, which was a tin betty lamp attached to a saucer-shaped baseâ€”was made in the town of Ipswich, Massachusetts, until 1850. Other famous betty lamps were made by Peter Derr in the early 19th centuryâ€”his dated and initialed lamps are highly prized by collectors.
In the late 18th century, Swiss chemist Aime Argand figured out how to make an oil lamp without a free floating wick. His world-changing invention featured a burner that contained the flame and held a cylindrical wick, as well as a rudimentary glass chimney.
Argandâ€™s innovation spurred the creation of all sorts of new oil lamps. Some used viscous rapeseed oil, sometimes referred to as colza or canola oil, which had to be fed to the w...
Whale-oil lamps were even more popular, in no small part because they smelled less and smoked less than lamps that burned rapeseed oil. The earliest whale-oil lamps were made of pewter and featured a couple of metal tubes holding circular wicks, whose flames flickered at the lampâ€™s top end like candles. Some were designed to be hung or carried by U-shaped handles.
Such pewter whale-oil lamps are usually hard to identify because most makers didn't mark them. Occasionally, some marked by Roswell Gleason, Eben Smith, or Caper Molineux can be found. The Brook Farm commune, as well as Israel Trask, Boardman, or Calder, also put out many pewter lamps in the 19th century. The designs of these metal lampsâ€”sometimes made of tin and brass, tooâ€”was usually more functional than beautiful.
Around 1830, glass manufacturers like the esteemed Sandwich Glass Company, began to produce blown and pressed glass whale oil lamps that were shaped like delicate vases, with a lightbulb-like space containing the flame. These were often beautifully designed, and came in a range of gem-like colors, including topaz, sapphire, amethyst, and opal. Today, these lamps are often found lacking their original burners because in the 1860s many of them were refitted for kerosene.
The inexpensive process of extracting kerosene (known as "coal oil" or "paraffin") from petroleum was perfected by Canadian scientist Abraham Gesner in 1849. That discovery, as well as an abundance of oil found in Pennsylvania, sparked a revolution in lighting technology.
Michael Dietz led the charge when he brought his clean-burning kerosene lamp to the market in 1857. Kerosene changed the lamp industry almost overnight, and almost certainly spared a few whale species from extinction. Unlike animal fat, kerosene did not stink or rot, making it a wildly popular fuel source.
The first kerosene lamps, called "wick lamps," fed the wick through a top burner attached to the fuel tank beneath. A glass chimney, which helped direct and feed air to the flame, was then placed on top of the burner, which usually had a device to adjust the wick, thereby controlling the intensity of the flame. The earliest wick lamps, called "dead-flame" lamps, gave off a low amount of light, as the flame was fed from air drawn in from below.
Kerosene lamps got brighter as the century progressed, thanks to Dietz Lantern's 1860s "hot blast" innovation, a lamp design that circulated a mix of fresh and heated hair to the flame through side tubes. That was followed by "cold blast" designs in 1880, which brought even more fresh air to the flame.
Finally, early in the 20th century, Aladdin Industries introduced the "mantle lamp," in which the burner would heat a "mantle," or a piece of cloth that had been soaked in a variety of metal oxides. These new kerosene lamps burned the brightest of all, gave off no smoke or odor, and did not flicker.
As these new technologies developed at the end of the Victorian era, the public became more and more obsessed with artificial illumination and the freedom it offered. Manufacturers, particularly glass companies, responded by trying to outdo one another, coming out with more and more opulent and artistic lamp shade and chimney designs, insisting that consumers needed to light every corner of their homes. Glass companies like Fostoria or Consolidated would sell their shades to manufacturers like Holmes, Booth and Haydens, which made the lampâ€™s mechanical parts.
Thanks to this competition, kerosene lamps of the Victorian era come in a tremendous variety of shapes and styles. The most humble and functional lamp chimneys were made of plain opal milk glassâ€”eventually these were produced in factories rather than being hand-blown. The most expensive lamp shades were elaborate and often stunning works of art glass, made in satin glass, amberina, cranberry, and mother of pearl, among other colors. They could be cut or engraved with elegant patterns, like the best glassware, or they could be hand-painted with artistic images of flowers, landscapes, or portraits. They might even be adorned with crystal tassels.
Two popular forms of kerosene lamp class are case glass (two layers of glass with white inside to reflect more light and a color like green outside), and slag glass (a kind of opaque, streaked pressed glass). In the 1880s, lamps with a giant, showy globe-shaped shade, known today as â€śGone With the Windâ€ť lamps, were hugely popular. Around that time, manufacturers started to experiment with making these lamps in even more convoluted shapes and out of materials like mica, horn, and porcelain.
However, the glory days of oil lamps were numbered. As the new century dawned, innovations in gas lighting and electricity would lead to even better sources of light, and kerosene lamps would be all but abandoned by the middle of the 20th century.
Collectors should look for lamps made by U.S. companies such as Bryce, McKee and Company, which specialized in table lamps; Mount Washington Glass Works, which made chandeliers and globe-shaped shades; and a number of Pittsburgh shade and chimney companies, including Excelsior Flint Glass Company, Keystone Flint Glass Manufacturing Company, Adams and Company, and Atterbury and Company.
Antique paraffin lamps from Europe are also highly desirable, including those from England's F. and C. Osler, esteemed for its art-glass lamps and chandeliers, which were shown at the 1878 Paris Exhibition. Lissuate and Cosson's Glass Works of Paris were known for their black-glass lamp bases adorned with colored and pearl glass. Meanwhile, Dresden potteries exported porcelain lamps featuring florid designs with fat baby cupids in high relief.