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One of the company's first successful products was a damper regulator for boilers that used a sylphon to automatically adjust the damper position as the temperature changed. [5] The earliest automobile thermostats used sylphons for actuation. [5] By 1940, over 50 million sylphons were in daily use the United States alone. [6]
A vast array of products are made with vulcanized rubber including ice hockey pucks, tires, shoe soles, hoses and many more. When "rubber fever" struck Boston in the 1830s, there was a large consumer demand for products made of rubber- aprons, life preservers, hats, carriage tops, and, by 1836, waterproof shoes.
Typical table sizes were 9″ × 49″ (Y and X, respectively) and 10″ × 54″. Machine tapers for tool holding included Morse tapers (on early models) and the R8 taper (a widely used standard that Bridgeport created) on most models. Both Morse and R8 allowed for both collets and solid holders, and a drill chuck could be held by either of ...
Caps can also be plastic, sometimes with a pour spout. Flip-Top caps like Flapper closures provide controlled dispensing of dry products. The crown cork, the first form of a bottle cap, possessed flanges bent over a sealed bottle to compress the liquid inside. It was invented and patented in 1892 by William Painter of Baltimore, Maryland. [27] [28]
The earliest pipes were made of clay, and are found at the Temple of Bel at Nippur in Babylonia. [127] [b] 4000 BC: Oldest evidence of locks, the earliest example discovered in the ruins of Nineveh, the capital of ancient Assyria. [130] 4000 BC – 3400 BC: Oldest evidence of wheels, found in the countries of Ukraine, Poland, and Germany. [131 ...
Colonial silver working was pre-industrial in many ways: many pieces made were "bespoke", or uniquely made for each customer, and emphasized artistry as well as functionality. Silver (and other metal) mines were scarcer in North America than in Europe, and colonial craftsmen had no consistent source of materials with which to work. [13]
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During the 1920s, significant advances were made in welding technology, including the introduction of automatic welding in 1920, in which electrode wire was fed continuously. Shielding gas became a subject receiving much attention, as scientists attempted to protect welds from the effects of oxygen and nitrogen in the atmosphere.