Showing posts with label clockwork. Show all posts
Showing posts with label clockwork. Show all posts

Wednesday, May 20, 2015

For Every Meat There is a Turn



QUESTION: I love old mechanical things. Recently while rooting through a box of old junk at a monthly flea market, I came across an unusual item. It looks like a round can from which protrudes a cylinder. On the end of the cylinder is an odd-shaped ring and in the side of the can is a hole with a place to insert a key. Can you tell me what this is and something about it, if that’s possible?

ANSWER: It looks like you’ve found an antique spitjack. However, some of its parts are missing.

Today, you can go to any supermarket and purchase a fully roasted rotisserie chicken or turkey breast. But back in the 18th century, that wasn’t possible. All meats had to be slow roasted on a long pole called a spit over the fire in a huge, walk-in kitchen fireplace. And to do that evenly, it took man or woman power. Wives, children, servants, or slaves had to stand by the fire and slowly turn the meat until it was done. This had to be one of the most boring jobs in the 18th and early 19th centuries, so no one enjoyed doing it.

Roasting meat on a spit dates as far back as the first century B.C.E. During Tudor times, someone even came up with an ingenious way to have a dog provide the power to turn the spit—the dog ran in a treadmill linked to the spit by belts and pulleys. But it wasn’t until the 18th century that things got a little easier for cooks. It was then that the weight or clock jack came into being.

Descending stone, iron, or lead weights powered most of the spit-turning mechanisms, or more commonly spitjacks, used by Colonials and their British counterparts. In England, cooks referred to them as weight jacks, but in America, they came to be known as clock jacks because they used a clockwork mechanism to wind a spring used to turn the spit.

Earlier jacks of this type had a train of two arbors or spindles. Later ones had a more efficient train with three arbors. Those made and used in England had a governor or flywheel set above the engine as opposed to being located within the frame and to one side—to the right for a two train works and to the left for one with three trains. These weight jacks also contained a flywheel within the frame, usually at the
in a bell-like arch at the highest part of the frame.

In 1792, John Bailey II, an American clockmaker, patented the first steam-driven jack. However, the Turks used a mechanism similar to Bailey’s jack back in the mid-16th century.

Another type of roasting jack, the smoke jack, appeared in the early 17th century. This jack moved by the flow of the smoke from the fire over the sails of a horizontal wheel which lay sideways. By placing the wheel in the narrowest part of the chimney where the motion of the smoke was the fastest and where the greatest amount would strike the sails, the mechanism would slowly turn the spit, thus roasting the meat. But this type of jack had its downside since the speed of the jack depended on the draught of the chimney and the quantity and strength of the fire in the fireplace.

The type of jack you purchased is called a bottle jack because of its bottle-shaped hydraulic lifting device. A brass shell contains the clockwork motor. Introduced in the late 18th century, it replaced the earlier and simpler dangle spit. When the cook set the weights, the spit turned, eliminating the need for manual labor for approximately 30 minutes, after which the cook would have had to readjust the weights. Bottle jacks continued to be made and used until the early 20th century.

If your jack had all of its parts and was in better condition, it would sell for around $400.






Monday, January 7, 2013

Chugging Along



QUESTION: Every Christmas since I can remember, our family has got out an old tine train set that belonged to my grandfather and set it up under the Christmas tree. It still runs and is in good condition. All we know is that the set was made by a German company named Märklin. What can you tell us about this company?

ANSWER: From the looks of your train, I’d say it dates from the 1920s or 1930s. At the time, these trains were more toys than authentic models. Their design reflects the boxy look of European trains rather than the sleeker, simpler lines of American ones.

As the 1930s dawned, the Great Depressiion forced millions of people out of work. Owning an electric toy train was the ultimate. Kids even loved observing the trains displayed in department store windows. What could be more rewarding to a young boy than to receive a model train for Christmas? But these little trains were expensive so were out of reach of many families. 

Manufacturers lovingly handcrafted the earliest toy trains, made prior to 1850, of shining brass to run on the bare floor. But by the late 1830's, a number of prosperous toy companies began producing toy trains.  Around 1856, George W. Brown, a Connecticut firm, produced the first self-propelled train made of iron and  coated with tin to prevent rust. A wind up clockwork motor drove the engine and carriages on plush Victorian carpets on straight or curved tracks.

In 1859, tin smith Theodor Friedrich Wilhelm Märklin began producing doll house accessories made of lacquered tinplate. Although the Märklin Toy Company of Germany originally specialised in doll house accessories, It became known for its toy trains.

By the 1870's, the most popular trains were powered by steam. Utilizing alcohol or sometimes coal to propel. they duplicated the might and energy of their big, big brothers.

The tin toy makers in both Europe and the U.S. realized that profits could be made by selling toy trains to the masses and jumped on the toy model bandwagon. Early on, they set their sights on wealthier people by promoting their products’ snob appeal.

In 1891, Märklin began producing wind-up toy trains that ran on expandable sectional tracks and the following year created a sensation by making the first figure eight track layout. It also established a track gauge settings numbered from 0 to 4, which it presented that year at the Leipzig Toy Fair. These track gauges soon became international standards. Märklin began producing 0 gauge trains as early as 1895 and H0 scale in 1935. In 1972, the company rolled out diminutive Z scale trains, the smallest in the world in competition to  Arnold Rapido's introduction of N gauge.

Märklin’s owners noted that toy trains, like doll houses, offered the potential for future profits when, after the initial purchase, owners would expand by purchasing accessories for years to come. So, the company offered additional rolling stock and track with which to expand its boxed sets.

Electric trains became commercially successful by 1897 when the Cincinnati, Ohio, firm of Carlisle and Finch manufactured and sold a two-gauge unit for only three dollars, It also was the first to issue a model railway builder's instruction manual.

Many consider the years prior to World War I to be the "Golden Age" of quality model trains. As the war approached, manufacturers converted their factories to produce war monitions, rifles and replacement parts. The Depression that followed the war precluded many of these operators from coming back and many disappeared.

But Märklin continued producing toy trains until May 11, 2006 when Kingsbridge, a London venture capital company, took it over. The company filed for bankruptcy on February 4, 2009, but on February 5, 2010, after purchasing the rival LGB Company, announced it had returned to profitable state. Many consider Märklin's older trains highly collectible today.