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Tampilkan postingan dengan label history. Tampilkan semua postingan

HISTORY OF WINDOW GLASS MANUFACTURE

Diposting oleh mathias | 23.45 | | 0 komentar »



Window Glass was not produced in significant quantities in this country until :-
1226 BROAD SHEET was first made in Sussex, but of poor quality, and fairly opaque. Manufacture slowly decreased and ceased by the early 16th Century.
1330 French glassmakers produced CROWN GLASS for the first time at Rouen. Some French Crown and Broad Sheet was imported into the UK.
1620 BLOWN PLATE was produced in London by grinding and polishing Broad Sheet, and was used for mirrors and Coach Plates.
1678 CROWN GLASS was first produced in London. Because of its finer quality, this process predominated until the mid nineteenth century.
1688 The French produced POLISHED PLATE in larger sizes by casting and hand polishing.
1773 English POLISHED PLATE by the French process was produced at Ravenshead. By 1800 a steam engine was used to carry out the grinding and polishing of the cast glass.
1834 Robert Lucas Chance introduced IMPROVED CYLINDER SHEET, using a German process to produce finer quality and larger panes. This glass was used to glaze The Crystal Palace. The process was used extensively until early in the 20th Century to make window glass. From this period onwards machines were developed to automate the production of obscured Glass and later, window glass.
1847 James Hartley introduced a ROLLED PLATE glass with obscured ribbed finish, which is often found glazed in the roofs of railway termini.

1888 Chance Bros introduced MACHINE ROLLED patterned glass.
1898 Pilkingtons introduced Hexagonal Rolled WIRED CAST.
1903 MACHINE DRAWN CYLINDER Glass invented in the USA, was manufactured in the UK by Pilkingtons from 1910 to 1933.
1913 Belgium produced the first machine FLAT DRAWN SHEET glass. It was first drawn in the UK in 1919 in Kent .
1923 First UK production of continuous POLISHED PLATE glass, using single grinding system.
1938 Pilkingtons developed the twin ground POLISHED PLATE system.
1959 FLOAT GLASS was launched on the UK Market, invented by Sir Alistair Pilkington.

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Bicycle History

Diposting oleh mathias | 22.05 | | 0 komentar »



1817: Germany's Baron von Drais invents the Draisienne, the progenitor of the bicycle. Made of wood, it had a seat and handle bars, but no pedals. Riders propelled the hobby horse (as it was also called) by paddling their feet on the ground.
1839: A Scottish blacksmith named Kirkpatrick Macmillan creates the first self-propelled bike. Macmillan's system used swinging cranks on the front wheel to power a pair of rods that were linked to levers on the back wheel. The bike was very heavy (about 56 pounds), so riders had to be fit

1863: Pierre Michaux of Paris develops the Michaux Velocipede, which features pedals and cranks on the front wheel. The Velocipede becomes the world's first mass-produced riding machine. The "boneshaker," as it was also known, for its rough ride, remained popular until about 1870.
1870: Englishman James Starley creates the Ordinary bicycle, which has a dramatically large front wheel and a small rear wheel. This allows riders to go farther with each revolution of the pedals. The bike required lots of skill and practice to ride. It was also known as the penny-farthing, because the wheels looked like a large English penny and farthing placed next to each other.
1884: Englishman H.J. Larson designs the first chain-driven bike, which he named the Safety. His bike had medium-sized wheels of equal diameter. It was also more stable and easier to stop than the Ordinary. But Larson's bike never caught on.
1885: John Kemp Starley, James Starley's nephew, creates the Rover Safety, the prototype of the modern-day bike. Starley's bicycle had a saddle, handlebar grips, and rear placement of the crank axle, making the bike both easier and safer to ride. Safety bicycles, as they came to be called, featured the cross frame so familiar today.
1888: john Boyd Dunlop, a veterinarian in Belfast, Ireland, develops the pneumatic (air-filled) tire, which provides a smoother ride. Prior to this, solid rubber tires were used.
1890: Mass production of reasonably-priced bicycles allows working men to use them for transportation and leisure. Daring young women see the bicycle as a ticket to freedom. Bloomers allowed women wearing skirts to ride while maintaining their modesty. This led suffragist Susan B. Anthony to declare that the bicycle "has done more to emancipate women than anything else in the world."


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mother ship

Diposting oleh mathias | 17.34 | | 0 komentar »

mother ship (english: carrier vessel, limited partnership) term for frigate that hold fighting aeroplane in gross. the task move air strength into navy fleet as navy operations supporter. besides also used as operation command centre and as strength detterence or give fear effect in opponent. as ship that bring aeroplane, has fighting mother ship first time used by english navy , but until approach western countries second world war belongs united america stills to dislike to use it as principal navy strength


navy fleet conventional concept moment that is dominated by ship crosses heavy, ship crosses, destroyer (destroyer) of the size cannon this matter big enough is really caused that mother ship is looked at enough susceptible and risky when used in maritime operation.
japanese navy (kaigun) that uses mother ship effectively in the early world war ii. maritime agreement consequence between america english and japanese with french and german agreed on tonnage ratio 5: 5: 3: 1,5: 1,5 to usa, japanese english, french and german is making japanese deceive it with is make medium size mother ship but equiped lethal air strength even if reaps anger from military side self. proof from japanese engineer attack on pearl harbour 9 decembers 1941 that disenchants west mother ship function that can do lethal attack on opponent target installation. moment levy war pacific, japanese has 6 mother ship that is akagi, kaga, soryu, hiryu, shoka, and zuika, and 2 light mother ship that is hosho and ryujo. japanese lose 4 the mother ships in battle midway, that is akagi, kaga, soryu, and hiryu. after the t that, ofensif japanese use mother ship have been stopped and becoming not mean again.



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