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Glow-worm [12] (1934, United Kingdom) Hermann Saunier Duval [13] (1970, Italy) Protherm [14] (1991, Czechoslovakia) The Glow-worm brand in the United Kingdom and the Saunier Duval brands in France were part of Vaillant's acquisition of British competitor Hepworth Limited in 2000. [15] [16] In the UK, the group markets both the Vaillant and Glow ...
Glowworm or glow-worm is the common name for various groups of insect larvae and adult larviform females that glow through bioluminescence.They include the European common glow-worm and other members of the Lampyridae, but bioluminescence also occurs in the families Elateridae, Phengodidae and Rhagophthalmidae among beetles; as well as members of the genera Arachnocampa, Keroplatus and Orfelia ...
erosion of a boiler's plates from the internal water space, particularly where there is a step inside the shell. This was a problem for early boilers made from lapped plates rather than butted plates, and gave rise to many boiler explosions. In later years it was a problem for the non-circular water drums of Yarrow boilers. Handhole
Arachnocampa luminosa (Skuse, 1891), commonly known as New Zealand glowworm or simply glowworm, is a species of fungus gnat, and is solely endemic to New Zealand.The larval stage and the imago produce a blue-green bioluminescence. [2]
Vanderbilt boiler An American design, similar to the Lentz and large launch-type boilers. [36] Velox boiler: [61] vertical boiler: flued or fire-tube designs where the main shell is a cylinder on a vertical axis, rather than horizontal. Boilers of this external form may have a great variety of internal arrangements.
This committee put in the form work for the first edition of the ASME Boiler Code - Rules for the Construction of Stationary Boilers and for the Allowable Working Pressures, which was issued in 1914 and published in 1915. [5] The first edition of the Boiler and Pressure Vessel Code, known as the 1914 edition, was a single 114-page volume.
The Lampyris noctiluca, commonly referred to as a glow worm, belongs to the Lampyridae family, which is Greek for "shining ones," and includes species known as fireflies or lightning bugs. Contrary to its name, it is not worm-like, but a beetle. These beetles are typically the most active at night and spend their day under debris, or in the ground.
The American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (BPVC) covers all aspects of design and manufacture of boilers and pressure vessels. All sections contain welding specifications, however most relevant information is contained in the following: