Showing 33 items matching "nautical instrument"
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Flagstaff Hill Maritime Museum and Village
Instrument - Ship Log, Early 20th Century
In times past the only way to measure a ship’s speed was to throw a wood log into the water and observe how fast it moved away from the ship. In the 16th century, the log was fastened to a rope knotted at set intervals. The log was thrown over the stern (back) of the vessel and a crew member counted the number of knots that were paid out in a set time. From this, they could estimate the vessel's speed through the water. This was known as streaming the log and is also the derivation of the knot as a measurement of nautical speed. Various manufacturers of nautical equipment had sought over the years to perfect the operation of determining a ship's speed and it wasn't until Thomas Walker and his son Ferdinand developed a mechanical system that eventually made this task became easy for marine navigators. Thomas Walker & Son were internationally renowned in the manufacturing of ship logs the founding father, Thomas Walker (1805–1871), an engineer in Birmingham, patented his mechanical log in 1878 which was a recording instrument that attached to a rail at the stern of a vessel connected by a long cord with a rotor which was towed behind the ship. The instrument dial then recorded the distance travelled. Thomas Walker first went into business to manufacture stoves at 58 Oxford Street Birmingham. Walker’s self-feeding stove was widely lauded at the Paris Exhibition of 1855, winning a prize medal and kickstarting the first of many notable innovations for the Walker family's manufacturing business. However, it wasn’t until working on an earlier ship’s log model invented by his Uncle that Thomas Walker became interested in the further development of this device, used to ascertain a ship’s speed. Walker continued to improve on the common log for the company of Massey & Sons and these improvements were deemed revolutionary. This log became a firm favourite of the West India Association (a British-based organisation promoting ties and trade with the British Caribbean), being the most common log in use for two generations. It took until 1861 for Thomas Walker and his son, Thomas Ferdinand Walker (1831-1921) to patent the first Walker log of many. Together, with the introduction of the A1 Harpoon Log two years later, they established the Walker Log Business as a force to be reckoned with. By his passing in 1871, Thomas Walker Snr had not only founded a family business with considerable staying power but also instilled a tradition of public service. Having sat as a representative on the Birmingham Town Council for 15 years and played an active role in public works, he was soon given the nickname of ‘Blue Brick Walker’. Much like his father, Thomas Ferdinand Walker changed the face of the maritime industry. His patent of 1897, the ‘Cherub’ log, was a notable departure from the past providing a far more accurate reading and replacing the majority of logs of the age. They were the first to produce an electric log (Trident) and the Walker factory was one of the first to introduce the 48-hour work week for employees.The ship log was invented and made by a significant marine instrument maker and innovator of machinery. It demonstrates the huge leap taken to improve navigational accuracy at sea with an instrument that was in use for decades.Ships Log, Walker Trident electric motor, in wooden box with instructions inside box. The motor dial with electric cord is still inside box.Inscription "Admiralty patent number 3332" and "Walker Trident Electric Ship Log (Mark III), 15-25 volt". On top of lid, hand written, is "G TAYLOR"flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, ships log, thomas walker & son, electric ships log, marine navigation, thomas ferdinand walker, ship log -
Flagstaff Hill Maritime Museum and Village
Functional object - Megaphone
This megaphone's conical shape amplifies the sound from the narrow end and would have been used to signal a warning or give instructions. Its design is similar to an earlier brass fog horn used on a marine vessel, as it has a wide brim that allows it to be free-standing, and a shoulder rope makes it portable and frees up the user's hands. The narrow end is shaped into a mouthpiece. The megaphone may have been used at sea foghorn on a vessel, although it has no reeds for the sound, or used by a leader of a band or a fireman or other similar uses. This megaphone's conical shape is based on the centuries-old ram's horn or horn from other animals, used to amplify sound to make it travel a long distance or be heard above other sounds. It represents a similar instrument made in the 19th century and used as a signal or to give instructions, such as on a vessel at sea, to a lifesaving team, or in a marching band. Megaphone; brass conical shape with an opening at both ends and a join near the wide end. The wide opening has a broad brim and is painted red inside. A brass ring is attached near each opening and a narrow rope is attached to each ring. warrnambool, flagstaff hill maritime museum and village, fog horn, marine equipment, navigation, warning signal, maritime, nautical, fireman, captain, shoulder rope, signal, safety equipment -
Flagstaff Hill Maritime Museum and Village
Instrument - Chronometer
First State Watch Factory: This factory was founded in 1930 under orders from Joseph Stalin, the "First State Watch Factory" was the first large-scale Soviet watch and mechanical movement manufacturer in the USSR. Via its USA-based trading company (Amtorg), the Soviet government bought the defunct Ansonia Clock Company of Brooklyn, New York in 1929, and the "Dueber-Hampden Watch Company of Canton", based in Ohio. The soviets moved twenty-eight freight cars full of machinery and parts from the USA to Moscow in order to establish the factory. Twenty-one former "Dueber-Hampden" watchmakers, engravers and various other technicians helped to train the Russian workers in the art of watchmaking as part of the Soviet's first five-year plan. The movements of very-early products were still stamped "Dueber-Hampden, Canton, Ohio, USA" (examples of these watches are very collectible today). In 1935 the factory was named after the murdered Soviet official Sergei Kirov. During the second world war, as the Germans closed in on Moscow in 1941, the factory was hurriedly evacuated to (Zlatoust USSR). By 1943 the Germans were in retreat, and the factory was moved back to Moscow, adopting the "First Moscow Watch Factory" name. In 1947 the first wristwatches under the brand name "Pobeda" and the first Marine Chronometers and Deck watches were produced. By 1951 the production of wristwatches had increased to 1.1 million. In 1975 new machinery and equipment for manufacturing complex watches were imported from Switzerland. The first chronograph called "Okean" (3133) was produced for the space station "Soyuz-23."The Chronometer is of recent manufacture and an excellent example of the type of instrument used to navigate the seas in the 19th century. It is of good quality and of a type regarded as very accurate and well made. The maker, First Watch Factory, has a dept that is still producing the "8916" standard Chronometer for horologists and collectors. Marine chronometer of Russian make in wooden case, metal handles on sides, inscription on a metal plaque on the front of the case. Polished square wooden outer case with green felt lining and, a leather carrying strap and buckle. Outer case is hinged and has a metal latch on the front. Outer case has a red velvet covering with a button and loop closure. Inscription on box are in Russian & translate as follows: ХРОНОМЕТР, = CHRONOMETER МОРСКОЙ, = NAUTICAL ГОСТ, 8916-77 = Gost ЛОЛ ЕТ, on dial face = LOL ETflagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, chonometer, russian, watch factory, marine, navigational instrument