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A 3 × 6 stack of Marshall ModeFour guitar cabinets on the main stage of Tuska Open Air Metal Festival in 2008. This setup belonged to Jeff Hanneman of Slayer.. Marshall Amplification is a British company that designs and manufactures music amplifiers, speaker cabinets, and effects pedals.
1942 Marshall Type M tractor. The first single-cylinder Marshall tractor to be introduced was the Marshall 15/30 in 1930. It had a 8-inch (200 mm) bore with a 10-inch (250 mm) stroke (= 8.237 litres) and the maximum speed was 550 r.p.m., or 9.1666 revolutions per second. In 1932 the 15/30 was upgraded to become the Marshall 18/30.
The MG 15 was developed from the MG 30, which was designed by Rheinmetall using the locking system invented by Louis Stange in the mid to late 1920s. Though it shares the MG 15 designation with the earlier gun built by Bergmann, the MG 15nA (for neuer Art, meaning new model having been modified from an earlier design) has nothing in common with the World War II gun except the model number.
Geogrids represent a rapidly growing segment within geosynthetics. Rather than being a woven, nonwoven or knitted textile fabric, geogrids are polymers formed into a very open, gridlike configuration, i.e., they have large apertures between individual ribs in the transverse and longitudinal directions.
Before WW1 the workforce was over 4000, but by the mid 1930s this had fallen to less than 1000, and in October 1935 Thomas W. Ward Ltd purchased the entire assets of Marshall, Sons & Co Ltd. [2] In January 1947 it was reported that Marshall had acquired John Fowler and Company (Leeds) Ltd. which was of similar size and had a highly mechanised ...
Early research (Bathurst and Jarrett, 1988) [13] found that cellular confinement reinforced gravel bases are "equivalent to about twice the thickness of unreinforced gravel bases" and that geocells performed better than single sheet reinforcement schemes (geotextiles and geogrids) and were more effective in reducing lateral spreading of infill under loading than conventional reinforced bases.
Geogrids are used to prevent sliding on long and steep slopes during installation and use of a landfill capping system. [1] A geogrid is geosynthetic material used to reinforce soils and similar materials. Soils pull apart under tension. Compared to soil, geogrids are strong in tension.
The Bergmann gun used a lock system patented by Theodor Bergmann in 1901 along with the short recoil principle of operation. The locking system, in which a cam moves a lock vertically in the weapon, was not dissimilar to the Browning machine gun designs.