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The MSA Skullgard was the best, but quite expensive. Many hard hats were made of cheaper steel. Several Workmen wearing ribbed metal hard hats, and one (right) in a MSA Skullgard, at the site of a Texas oil well in 1940. Lighter affordable aluminum became popular for hard hats around 1938, except for electrical applications.
Construction worker wearing an MSA Skullgard hard hat at Douglas Dam, Tennessee (), 1942. Mine Safety Appliances, or MSA Safety Incorporated, is an American manufacturer and supplier of safety equipment designed for use in a variety of hazardous conditions in industries such as construction, the military, fire service, and chemical, oil, and gas production.
In the United States, for example, in May 2023, construction sector businesses employed just over 7.9 million people, of whom 859,000 were laborers, while 3.7 million were construction trades workers (including 603,000 carpenters, 559,000 electricians, 385,000 plumbers, and 321,000 equipment operators). [5]
Electricians – Virgin of Candelaria; Embroiderers - Clare of Assisi, [8] Rose of Lima; Emergency dispatchers - Gabriel the Archangel; Encyclopedists - Jerome [18] Engineers - Benedict of Nursia, Ferdinand III, Patrick. Military engineers - Barbara, Eligius [19] English writers - Bede; Environmentalists - Kateri
Image credits: Electrical-Aspect-13 During the Victorian era, Britain was the cultural capital of the English-speaking world, including the United States, Canada, Australia, and New Zealand.
Standard diving dress, also known as hard-hat or copper hat equipment, deep sea diving suit or heavy gear, is a type of diving suit that was formerly used for all relatively deep underwater work that required more than breath-hold duration, which included marine salvage, civil engineering, pearl shell diving and other commercial diving work, and similar naval diving applications.
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