An Englishman named Richard Salter revolutionized the world of weighing scales in 1770 by inventing the spring scale. Before Salter’s spring scale, the balance scale, which was invented in approximately 4000 BC, had been the longtime standard in weight measurement. He and his nephews John and George went on to open a very successful business selling scales and balances and patent the spring balance in 1838.

The hanging spring scale can be as simple as a hook attached to a spring, which is fixed at the opposite end, and has a variety of possible applications. It can perhaps most commonly be found in the grocery stores in the produce section. The suspended scales which people use to weigh their produce are perfect examples of hanging scales. They can also sometimes be found in the deli section of the supermarket.

Hanging scales are often used on farm and in factories, and can easily be purchased with up to a 10,000 pound capacity. Hanging scales are also used in more industrial settings. Cranes can be equipped with hanging scales in order to building materials at construction sites or other very large objects.

One of the advantages of using a hanging scale over other types of weighing machines is their portability. A small hanging scale can be attached to a variety of surfaces. Additionally, especially in the case of crane scales, hanging scales can be maneuvered in to weigh things that could not otherwise be reached or are difficult to move. For example, hanging scales are often used by medical facilities to weigh handicapped and bedridden patients.

One of the disadvantages of using a spring scale, in particular, is that they are sensitive to the gravity of the place in which they are used. This is because the spring scale measures the force an object exerts on the spring inside the mechanism. This means that because gravitational force varies in different parts of the world, spring scales can give different readings of the weight of the same object when placed in different locations. Because of this if the user wants an accurate reading many spring scales must be recalibrated taking into consideration the gravitational pull of their current location before using their scale.

Fortunately today digital scales are available for purchase that offers the user the option to have their scales automatically calibrate themselves. Digital hanging scales in particular have become quite popular and can be found in every industry from food stores to construction sites. Digital hanging scales with stainless steel load sensors are ideal for industry, as they are more rugged and durable.