First available in ScubaPro’s catalogue in 1966, the ScubaPro Automatic Decompression Meter was a break through in diving technology and a forerunner to the modern dive computer. The meter attempted to calculate nitrogen absorption based on dive time and depth. This was done mechanically instead of electronically, and without the benefit of any actual computing. The Automatic Decompression Meter was introduced just a year after ScubaPro’s most successful product – the ScubaPro Jet Fins – which still remain popular today. Used by divers since 1966The ScubaPro Automatic Decompression Meter 1966 in original box Automatic Decompression Meter Number 4323 made in Italydiving, decompression meter, scubapro

Pains Wessex Mini Resqsat RB3 Personal 121.5 / 243 MHz EPIRBKinetic Technology Int Pty Ltdepirb, safety at sea

The battery powered set, which dates from the second half of the twentieth century, comprises two main components, the electronic keyer with a single lever for tapping, and a transmitter (?), both connected by a keying cable. Morse code was invented in the 1830s by American, Samuel Finely Breese by using electrical signals to quickly transmit information over a long range. In the early 1890s Italian inventor, Guglielmo Marconi improved the technology to the point where it became an essential device used for commercial and government purposes. The first practical applications were demonstrated with maritime messaging, where this simple mode of communication was seen as a timely replacement for the historic practice of signaling by flags, lights and foghorns. Cape Schanck has an earlier Morse code key, which is original to the lightstation (CSLS 0035), and Cape Otway has another early example although its provenance to the lightstation has not been formally verified (COLS 0074). The Morse code set has first level contributory significance for its historical value as an earlier communications device that has since been made redundant by more sophisticated technologies.Morse code key set. Comprised of the tapping component and a metal box part with a white electrical cord.Yes

This photograph shows the steam dredge Pioneer working to remove silt in Lady Bay, Port of Warrnambool. The dredge belonged to the Ports and Harbours department in Melbourne. Also in the photograph are two moored vessels, and the Warrnambool Lifeboat shed and Rocket house built on the Warrnambool Breakwater. The Warrnambool Harbour had been experiencing heavy silting and sanding for many years. The problem continued even after the construction of the Breakwater in 1890. The Ports and Harbours' new, larger suction hopper dredge, the Matthew Flinders, was also employed in May 1919 to remove the heavy silting in the Harbour. Both dredges were sent up from Melbourne when required over the years to periodically attend to the silting. The Matthew Flinders was still dredging the Harbour even in the 1930s. (The ship’s original master was J G Rosney. In February 1922 Percy Taylor from Ports and Harbours joined the Matthew Flinders as a Mate. 1923 the master in charge was Captain Dunbar. In August 1926 Percy Taylor was appointed as her Master and was later transferred to the Pioneer as Master in 1933.) 1930 the dredges were no longer required as the Harbour was no longer suitable as a port. However, one source notes that the Matthew Flinders was still dredging the Harbour in 1938.This photograph is significant for its association with the Port of Warrnambool, the Warrnambool Breakwater, and the issue of the silting in Lady Bay. The photograph is significant historically as it shows a point in time when efforts were employed to keep the Port of Warrnambool functioning, allowing shipping activities to continue operating. The need for dredging in the Warrnambool Harbour was a serious and ongoing problem, as silting continued to happen after a series of measures were taken to try and resolve the issue. Eventually, the Harbour could no longer function successfully as a port.Photograph, black and white, showing two similar images and printed together. Images of Lady Bay, Warrnambool, the dredge 'Pioneer' on the left, ships and the Warrnambool Lifeboat and Rocket House on the right, beside the Breakwater. Ca. 1900 to 1930."BL016"flagstaff hill, warrnambool, maritime village, maritime museum, flagstaff hill maritime museum & village, dredge, mathew flinders i, warrnambool harbour, lady bay, sanding, silting, breakwater, captain dunbar, ports & harbours, marine technology, percy taylor, matthew flinders, pioneer, dredge pioneer, lifeboat house, rocket house

The photograph shows the vessel HMAS Warrnambool J202, which was commissioned by the Royal Australian Navy for use as a minesweeper during World War II. The Bathurst Class Corvette, fitted out with a range of armaments, was launched in Sydney 1941. The ship began service in Bass Strait in 1941. At the end of the year it called into its namesake city, Warrnambool, where the crew paraded for the public marching eastwards along Timor Street. A gift of books for the ship’s personnel and a plaque bearing the City of Warrnambool’s Coat of Arms were presented to the ship. The ship was involved in evacuating a family of nine from the Dutch East Indies that was later successful in its challenge of Australia’s Immigration Restriction Act (White Australia Polity). The ship had many other appointments around Australia. On 13th September 1947 HMAS Warrnambool was leading a flotilla of minesweepers in northern Queensland’s coastal waters, clearing mines previously laid to defend Australia. The ship hit a mine, which exploded and very quickly sunk the ship. Boats from the nearby ships rescued most of the seamen although one was killed at the time. The survivors were taken by the HMAS Swan II to Darwin, and they went from there to hospitals in Brisbane and Sydney. Three of these men later died from their injuries. A number of items were recovered by Navy divers in 1948 including the ship’s bell and a plaque with Warrnambool’s Coat of Arms. In 1972-75 the wreck was sold and other items were salvaged. In 1995 a memorial plaque was erected in Warrnambool near the RSL. NOTE: The RAN built a second HMAS Warrnambool FCPB204, launched in 1981 and decommissioned in 2005. There was also a steam ship SS Warrnambool built in London 1892 and broken up in 1926. [A more detailed history can be found in our Collection Record 3477.] This photograph of HMAS Warrnambool is significant for its association with Royal Australian Navy and its vessel, HMAS Warrnambool (J202). The HMAS Warrnambool played a nationally significant role in overturning Australia’s Immigration Restriction Act 1901 (colloquially known as the White Australia policy). The ship rescued, and brought to Australia, Samuel and Annie Jacob and their family after they evacuated Dutch East India. The family was threatened with deportation and made the first successful appeal to High Court regarding that Act. The HMAS Warrnambool has - Local significance for being the namesake of the City of Warrnambool - Local significance, having docked in Warrnambool Harbour - Local significance, the crew having paraded in Timor Street, Warrnambool - State significance for its first patrol being in Bass Strait. - National significance, being present in Timor at the Japanese surrender - National significance, shown by the significance of the ship’s bell being curated as Military Heritage and Technology at the Australian War Memorial. - National significance as part of Australia’s defence force history, being one of only four Bathurst class corvettes lost while in Australian service, the only Bathurst class corvette lost after World War II, the only RAN vessel to be sunk by a mine, and associated with the last four Navy deaths of WWIIPhotograph of HMAS Warrnambool near land. Black and white photograph shows a steam and sail vessel in calm water beside land. Figures are standing on board. A flag flies on a mast. The ship's name is on the stern. The light coloured funnel has emitted a small amount of smoke.On side of ship "WARRNAMBOOL"flagstaff hill, maritime village, maritime museum, warrnambool, shipwreck coast, mort's dock & engineering co ltd, h.m.a.s. warrnambool, hmas warrnambool, hmas warrnambool i, hmas warrnambool j202, hmas swan ii, j202, world war ii, bathurst class corvette, royal australian navy, ran, sydney built ship, bass strait patrol, sea mine patrol, mine sweeper, mine clearance, navy divers, great barrier reef, cockburn reef, southern cross diving and salvage, warrnambool city council, cr j r astbury, mayor j r astbury, warrnambool patriotic fund, seal, coat of arms, dedicatory plaque, hmas warrnambool 1941, shipwreck by sea mine 1947, sinking ship, sunk ship, minesweeper

A steam boiler like this late 18th century boiler, is often called a colonial boiler. Steam boilers were used in factories throughout Australia, mounted over similar designs of brick furnaces. This heat from the fire travels through the tubes in this fire tube boiler and the water heats as it circulates around them. Another kind of boiler is a water tube boiler, in which the water is inside the tubes and the heat of the combustion surrounds the tubes. The boiler in our collection burned wood as fuel but others of this design could also burn coal, coke, gas and liquid fuels. The boiler was made by T & F Johnson, boilermakers. In 1922 their factory was located at Coventry Street, South Melbourne. They were still advertising their 'Colonial, multi, vertical boilers, all sizes' at the same address in 1934. The connected pressure gauge, made in London by Dewrance, measures 0 to 400 pounds per square inch. John Dewrance is renowned as a pioneer of the steam locomotive in the early 19th century. He founded John Dewrance & Co. in South London in 1844. His son Sir John Dewrance took over in 1879. In 1939 the company became a subsidiary of Babcock & Wilcox, and was eventually owned by Emerson. How the boiler works: - A boiler is about two-thirds filled with water and heat is applied, in this case in the form of burning wood. The heat is transferred through the metal of the boiler to the water. When the water boils the steam rises to the top, and as it escapes from the boiler the steam pressure builds up in the steam space to later be released to do work; drive machinery such as ship and train engines, turbines, presses, wheels, and driving belts to operate looms and saws. The heat associated with the boiler can be used for preserving food, sterilising, factory manufacturing processes, and steaming wood for shipbuilding. Every boiler has several components fitted for safe operation: - - Safety valves - Gauge glass - Pressure gauge - Main steam stop valve - Water check valve - Blowdown valve - Manhole doorThe boiler is a significant item that gives us a snapshot of early Melbourne's industrial history. It is an example of the technological advancement during the Industrial Revolution where steam-driven machinery and motors could perform tasks more efficiently than manual labour. The makers were one of many boilermaker businesses in Melbourne during the early late-19th andearly 20th centuries. The maritime trade and skills of boilermaking are still learned and applied today. The Dewrance steam pressure gauge connected to the boiler was made by the London firms foundered by John Dewrance. He was renowned for developing the steam locomotive in the early 19th century.Boiler; a horizontal cylindrical underfired steam boiler. It is a multi-tubular design and is timber plank-clad, with brass fittings and pressure gauges. The boiler has an iron door at one end with a metal chimney above it. It is installed over a brick-enclosed solid fuel furnace. Two large, wood-mounted pressure gauges are connected to the boiler and have inscriptions. An inscription is on a red, cast iron plaque above the boiler door. The boiler's maker is T & F Johnson, South Melbourne. One of the pressure gauges was made by Dewrance, London..Maker's plate: "T & F JOHNSON / BOILERMAKERS / SOUTH MELBOURNE" Pressure gauge: "POUNDS PRESSURE / PER [square] INCH / DEWRANCE LONDON"flagstaff hill, warrnambool, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, boiler, multi tube boiler, steam boiler, steam technology, underfired boiler, horizontal boiler, timber clad boiler, steam power, industrialisation, boilermakers, south melbourne, dewrance, john dewrance, pressure gauge, dewrance pressure gauge, t & f johnson, london, steam engine, steam locomotive, pounds per square inch, 19th century, steam machine, johnson tyne foundry, colonial boiler, fire tube boiler

This chronometer was made around 1936 and has been on display at Flagstaff Hill for over 40 years as part of the exhibit of the ‘Reginald M’, an Australian-built, 19ss, coastal trader vessel. A chronometer is an accurate mechanical instrument used for measuring time. It is constructed carefully to remain stable even under the changing conditions of seafaring life such as temperature, humidity and air pressure. The Master or Navigator of a ship could use the chronometer and the positions of celestial bodies to calculate the ship’s latitude at sea. In 1905 the business Chronometerwerke GmbH was formed in Frankfurt, Germany, to supply the country with high-quality mechanical chronometers and ship clocks for their maritime trade, making the country independent of other international suppliers such as those in England. In 1938 the firm was renamed Wempe Chronometerwerke. The business continues today. Its products now include its well-known chronometers, battery-powered ship clocks, ship’s bell clocks, barometers, barographs, thermometers, hygrometers, comfort meters to measure temperature and humidity, and wristwatches. The company also performs chronometer testing facilities for the State’s Weights and Measures office. The article written by Givi in July 2022 “The Basics of Marine Meteorology – a Guide for Seafarers” refers to the weather’s signs and patterns being repeated over and over, and the recording of these observations helps forecasters predict changes in the weather. The chronometer is an example of a mechanical navigational marine instrument in use in the early to the mid-20th century. The maker is significant as part of a German government initiative to be self-sufficient in the production of good quality marine technology. This chronometer is significant as part of the exhibit, the Australian-built vessel, 1922 coastal trader ‘Reginald M’, listed on the Australian Register of Historic Vessels and on display for over 40 years.Marine chronometer or marine clock, brass case, glass cover, Roman numerals, 24-hour numbers beside them. Two black hands, a keyhole for winding and ventilation holes in the side. The base has a collar with four machined mounting holes. Inscriptions are on the clock’s face."Made in Germany" and "WEMPE / CHRONOMETERWERKE / HAMBURG"flagstaff hill, flagstaff hill maritime museum and village, warrnambool, maritime museum, maritime village, great ocean road, shipwreck coast, marine meteorology, horology, chronometer, marine technology, latitude, marine navigation, mechanical instrument, scientific instrument, ship clock, chromometerwerke gmbh, wempe chronometerwerke, marine clock

This map from the mid-18th century doesn't include the finer details of land and sea masses that we know today. The map was produced by German cartographer and publisher, Johann Baptist Homann (1663-1724) and published in 1746, after his death. Earlier versions were published, such as 1707 and 1716. The date can be calculated from the Roman numerals on the top left text area. This print of a map is significant for its connection with early world explorers. A comparison of maps over the centuries shows the progression of navigational technology, the countries who claimed the land they explored. The naming of even some Australian locations shows who had already made their mark on Australia in the early 18th century. The print shows the fine details included by the cartographer and the beauty included that makes it attractive and interesting even today. The map is also significant for its connection with German cartographer, Johann Baptist Homann, whose Homann publishing company was renewed in Germany for producing high quality maps and atlases. Map behind glass in dark brown wooden frame on beige paper. The Coloured hand drawn line drawings show different hemispheres of the known world in the mid-18th century. Beautifully drawn figures and decorative embellishments enhance the map. The text on the top right has an explanation of the Figures I, II, III, and IV. This print of the 1746 map was produced in England by Leisure Arts Ltd. "PLANIGLOBIL TERRESTRIS" "MDCCXXXXVI" [1746] "MAPPE_MONDE" [Medieval Map of the World] "LEISURE ARTS LTD" "Printed in England"flagstaff hill, warrnambool, flagstaff hill maritime museum, flagstaff hill maritime village, flagstaff hill maritime museum and village, shipwreck coast, world map, french map, 18th century map, leisure arts ltd, cartography, early exploration, cartographer, johann homann (1663-1724), exploration, naviagtion, 1746 planiglobil terrestris

This meticulously hand crafted ship model is one of the most intricate and challenging projects for a ship modeller to create. Jim Williams took up the challenge, choosing to make all of the components by hand, following a plan of the ship rather than purchasing a pre-made kit. He even made his own tools specifically for working with this model. The “Sovereign of the Seas” 1637-1697 - The magnificent ship “Sovereign of the Seas” was ordered by Charles I of England, who desired a giant Great Ship to be built. It was built by Peter Pett under the guidance of his father Phineas, the King's master shipwright, and launched with 102-guns at Woolwich Dockyard on 13th October 1637, as the Navy’s second three-decker first-rate ship. It was the most extravagantly decorated warship in the Royal Navy, bought with the help of a special 'Ship Money' tax imposed by the King. Soon afterwards the ship was remodelled and cut down to a safer and faster ship. Over the ship’s lifetime it was renamed “Commonwealth”, then in 1650 it became simply “Sovereign” then again after a rebuild in 1660 it was named “Royal Sovereign”. By 1642 the ship’s armament had been reduced to 90 guns. In 1651 Sovereign was made more manoeuvrable by reducing the upper works. It served throughout the wars of the Commonwealth and became the flagship of General Robert Blake. It was involved in all of the great English naval conflicts fought against the United Provinces and France and was referred to as 'The Golden Devil' by the Dutch. By 1660 the armament was changed attain to 100 guns. After the English Restoration, it was rebuilt as a first-rate ship of the line, with flatter gun decks and 100 guns, and most of the carvings were removed. During the First Anglo-Dutch War, in a secret session on 21 October 1652, the States-General of the Netherlands announced reward money for the crews of fire ships that succeeded in destroying enemy vessels; the Sovereign was singled out with an extra prize of 3000 guilders to sink or ruin it. Although repeatedly occupied by the Dutch, the Sovereign was retaken every time by the British and remained in service for nearly sixty years as the best ship in the English fleet. The Sovereign was in regular service during the three Anglo-Dutch Wars, surviving the Raid on the Medway in 1667. After a second rebuild in 1685 the Sovereign was relaunched as a first-rate ship of 100 guns, before taking part in the outset of the War of the Grand Alliance against Louis XIV of France, venturing into the Irish Sea, and later participating in the Battle of Beachy Head in 1690 and the Battle of La Hougue. At this time she was more than fifty years old. It was the first ship in history to fly ‘royals’ above the topgallant sails and a top gallant sail on the jigger-mast. The Sovereign eventually became leaky and defective with age and was laid up at Chatham when, on 27th January 1697, the famous ship caught fire, burning to the waterline. Jim Williams, the model’s maker - Jim (James Bernard) Williams was born in 1888 at The Forth in Scotland. He lived in Tasmania for some time and enlisted to fight in France in WW1. After the war he moved to Warrnambool, Victoria, where he worked at the Cramond & Dickson clothing store until the Great Depression in the 1930’s. He was later employed at Fletcher Jones Menswear, where he worked for 27 years until just before his death in 1959. Jim was a passionate ship model builder. He worked on his model ships between 1930 and 1955, including The Endeavour and The Sovereign of the Seas, which was one of the most intricate historic ship models to build. He had a table set up in a bay window and worked on them on and off using a jeweller's eye glass on the finer pieces. Jim’s long-time employer, Fletcher Jones, knew of Jim’s hobby and skill as a ship model builder and requested Jim to describe the model, Sovereign of the Seas, with the view of putting it on display. When the model was finished there was a full article and photo in The Standard newspaper. Jim described his work on the ship mode “Sovereign of the Seas” in correspondence to his then employer, Fletcher Jones. The document gives us an insight into his skill, patience, and regard for replicating the details of the original ship. Some of the details are: "In making the model the time taken to make certain items might be of interest. For instance "The Great Lantern" on the stern, four weeks, a similar time for the figurehead of St George & the Dragon. "The lower shrouds three to each side about six weeks & the rigging as whole several months. There are nearly 300 blocks and pulleys ranging from nearly 1 / 16 inch in diameter. Dead eyes were bored with 3 to 5 holes. To do this needles of different sizes, set in handles & ground to wedge ends were used. Glass cut and ground to shape were used windows. All gun-port covers (74) hinged. "All guns and anchors made of wood. Nothing for the model was purchased ready-made; everything hand made." Jim’s family donated the ship model along with many associated tools, accessories and papers. The model represents the Sovereign of the Seas. The Royal Navy ship of the line launched in 1637 has a significant British maritime heritage. These days the Sovereign of the Seas still remains one of the most intricate historic ship models to build, representing to the model enthusiast a true challenge to the art of model shipbuilding. The model of Sovereign of the Seas in Flagstaff Hill's collection is an exemplary example of a ship model built and hand crafted from a plan with the making of every item on the model, not a model kit with prefabricated parts. It was made by a local Warrnambool man Jim Williams as a leisure activity in the mid 20th century. The hobby and craft of ship model making has resulted in visual representations of the changes in maritime technology and advances in world-wide navigation. Ship model of HMS Sovereign of the Seas, a 17th century British warship. The handmade model is in wooden framed, airtight glass case. All components were hand crafted. Many of the tools used were made by the model maker, Jim Williams. An inscribed plaque is within the case. Inscribed on plaque "SOVEREIGN OF THE SEAS / 102 GUNS - 1634"flagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, model ship, vessel sovereign of the seas, jim williams, james bernard williams, the forth tasmania, freda williams, heather williams, phyllis bowditch, fletcher jones staff 1936, 17th century sailing ship, cramond and dickson, sovereign of the seas, royal sovereign, sovereign, charles 1, ship model