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A spring scale, spring balance or newton meter is a type of mechanical force gauge or weighing scale. It consists of a spring fixed at one end with a hook to attach an object at the other. [1] It works in accordance with Hooke's Law, which states that the force needed to extend or compress a spring by some distance scales linearly with respect ...
Jolly balance. The Jolly balance is an instrument for determining specific gravities. Invented by the German physicist Philipp von Jolly in 1864, [1] it consists of a spring fastened at the top to a movable arm. At the lower end, the spring is provided with two small pans, one suspended beneath the other. The lower pan is kept immersed to the ...
Benjamin Dearborn (1754–1838) was a printer and mechanical inventor in Portsmouth, New Hampshire and Boston, Massachusetts in the late 18th and early 19th centuries. His inventions include the gold standard balance, [1] spring scale, [2] grist mill, candlestick, ballot box, [3] perspective drawing machine, [4] letter-press, [5] "musical board ...
A scale or balance is a device used to measure weight or mass. These are also known as mass scales, weight scales, mass balances, massometers, and weight balances. The traditional scale consists of two plates or bowls suspended at equal distances from a fulcrum. One plate holds an object of unknown mass (or weight), while objects of known mass ...
Tape measures are often designed for specific uses or trades. Tapes may have different scales, be made of different materials, and be of different lengths depending on the intended use. Tape measures used in tailoring are called "sewing tape". Originally made from flexible cloth or plastic, fiberglass is now the preferred material due to its ...
Henry Troemner (1809–1873) was a German-American entrepreneur. He started the Henry Troemner Company, known today as Troemner Inc. The company produced balances and scales. Troemner immigrated to the United States in 1832 and settled initially in New York City, then, by 1843, Philadelphia. He began making scales and weights in a partnership ...
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METTLER TOLEDO (NYSE: MTD) is a multinational leader in precision instruments and services. The company focuses on innovation and quality across laboratory, industrial, product inspection, and food retailing applications. Its products are used in research, quality control, and manufacturing processes in life sciences, food, chemical, and many ...