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Patent Model - Clothes-Pounder, 1878, [3] Hagley Museum and Library Of Colvin's four laundry improvements, her first one was the most important. It was for an improvement upon washing-machines and consisted of a rotating hollow cylinder inside a boiler which could clean a variety of fabrics including carpets and laces without rubbing and damaging them.
At first, Europeans adopted the rigid fan and feather fans. Queen Elizabeth I of England (1533–1603) owned dozens of these fans, as was shown in her portraits. Later in the 16th century, folding fans were introduced into Europe from Japan where they originated. [1]
A high-pressure steam locomotive is a steam locomotive with a boiler that operates at pressures well above what would be considered normal for other locomotives. Most locomotives operate with a steam pressure of 200 to 300 psi (1.38 to 2.07 MPa). [1] In the later years of steam, boiler pressures were typically 200 to 250 psi (1.38 to 1.72 MPa).
Farymann Diesel GmbH (1979–1984) – Based in Lampertheim (near Mannheim) in Germany, this was the first foreign acquisition Briggs & Stratton had ever made and was a poor fit with the company's acknowledged expertise in high volume, low cost production.
Construction of USS Shenandoah, 1923, showing the framework of a rigid airship. A rigid airship is a type of airship (or dirigible) in which the envelope is supported by an internal framework rather than by being kept in shape by the pressure of the lifting gas within the envelope, as in blimps (also called pressure airships) and semi-rigid airships.
ISO 811:2018 Textiles — Determination of resistance to water penetration — Hydrostatic pressure test; ISO 812:2017 Rubber, vulcanized or thermoplastic — Determination of low-temperature brittleness; ISO 813:2019 Rubber, vulcanized or thermoplastic — Determination of adhesion to a rigid substrate — 90 degree peel method