An hourglass or sandglass is an instrument for measuring a defined time and can be used perpetually by simply turning it over immediately the top bulb empties. The clear blown glass is shaped into two equal sized bulbs with a narrow passage in the centre and contains uniform sized sand or glass particles in the lower bulb. The width of the neck regulates the constant flow of the particles. The glass is held in a stand with top and bottom of equal shape and size. Hourglasses can measure an infinite variety of time by gauging the size of the particles, the shape and size of the bulbs and the size of the passage between the bulbs, thus measuring hours or minutes or even seconds. Generally an hourglass sits between discs of wood at the ends, which are joined by long wooden spindles between the ends and tightened by screw caps. The length of time can be adjusted by adding or removing sand particles. The use of the marine sandglass (or hourglass) has been recorded in the 14th century in European shipping. A one minute sandglass was used in conjunction with the ship’s log for ‘dead reckoning’, (see below) that is, for measuring the ship’s speed through the water. They were also used to regulate ringing the ship’s timetable; for example a 4 hour sandglass was used for the length of the sailors’ watch, and a half hour timer for taking of readings for the ship’s log; the ship’s bell would be rung every half hour. It was usually the role of the cabin boy to watch and turn the sandglasses over at the exact time of them emptying their upper chambers and to ring the ship’s bell. Hourglasses have been used historically for many hundreds of years. Some have been used for timing church sermons, in cooking, in industry and at sea. Even today they are used for measuring the cooking time of eggs and timing a player’s turn in games such as Boggle and Pictionary. The sandglasses at sea were gradually replaced in the late 1700’s to early 1800’s by the more accurate chronometers (marine clocks) when they became reliable instruments. DEAD RECKONING (or Deduced Reckoning) Dead reckoning is the term used to describe the method of calculating the ship’s position from its speed and direction, used in early maritime travel, mostly in European waters. Both the (1) speed and the (2) direction of travel were recorded on a Traverse Board at half-hourly intervals during a helmsman’s watch of 4 hours. The navigator would record the readings in his ship’s log, plot them on his navigational chart and give his updated course directions to the next helmsman on watch, along with the cleared Traverse Board. This was a very approximate, but none-the-less helpful, method of navigation. The wooden Traverse Board was a simple pegboard with a diagram of a compass with eight peg holes along the radius to each of the compass points, plus a grid with ascending half hours in the left column and increasing ship’s speed in knots in a row across the column headings, with a peg hole in each of the intersecting cells. A number of wooden pegs were attached to strings on the board. By placing one peg consecutively in the direction’s radius hole, starting from the centre, and the speed holes when the half hourly reading was taken, a picture of speed and direction for the whole 4 hour watch was created. (1) To measure the ship’s speed a one minute hourglass timer was usually used to measure the ship’s speed through the water and help to calculate its longitude. A rope, with knots at regular standard intervals and a weight such as a log at the end, would be thrown overboard at the stern of the ship. At the same time the hourglass would be turned over and a seaman would start counting the number of knots on the rope that passed freely through his hands as the ship travelled. When the timer ran out the counting would be stopped. A timer of one minute (one-sixtieth of an hour), knots spaced one-sixtieth of a nautical mile apart, and simple arithmetic easily gave the speed of the ship in nautical miles per hour ("knots"). This would be recorded every half hour. The speed could however be inaccurate to the travel being affected by ocean currents and wind. (2) To calculate the ship’s direction a compass sighting would be recorded each half hour.Marine hourglasses or sandglasses were used from around the 14th to 19th century during the time of sailing ships. This hourglass is representative of that era, which is during the time of the colonisation of Australia. Hourglass or sandglass; an instrument used to measure time. Two equal sized clear glass bulbs joined with a narrow passage between them, containing equal sized particles of sand grains in lower bulb. Glass sits in a brass collar at each end, in a frame comprising 3 decorative brass columns or posts, each attached top and bottom, using round screw-on feet, to round brass discs. Disc have Roman numerals for the numbers 1 - 12 pressed into their inner surfaces and hieroglyphics on the outer surfaces. Roman numerals on inner surface of discs " I II III IV V VI VII VIII IX X XI XII " Hieroglyphics impressed on outer surface of discsflagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, horology, hourglass, hour glass, sandglass, sand glass, timing instrument, dead reckoning, deduced reckoning, finding latitude at sea, sandglass with hieroglyphics and roman numerals, hourglass with hieroglyphics and roman numerals, brass hourglass

Removed from SMB campus when the TAFE Chemistry class closed.Glass vessel with hourglass shape, top opening, and 2 round side openings, side openings at different levels.chemistry apparatus, glass vessel, test tube, lecture demonstration equipment

This item is from a collection donated by descendants of John Francis Turner of Wodonga. Mr. Turner was born on 6 June 1885. He completed all of his schooling at Scotts Boarding School in Albury, New South Wales. On leaving school, he was employed at Dalgety’s, Albury as an auctioneer. In 1924 John was promoted to Manager of the Wodonga Branch of Dalgety’s. On 15/03/1900 he married Beatrice Neal (born 7/12/1887 and died 7/2/1953) from Collingwood, Victoria. They had 4 daughters – Francis (Nancy), Heather, Jessie and Mary. In 1920, the family moved From Albury to Wodonga, purchasing their family home “Locherbie” at 169 High Street, Wodonga. "Locherbie" still stands in Wodonga in 2022. The collection contains items used by the Turner family during their life in Wodonga. The designation "Nippon porcelain" refers to porcelain made in Japan for export to the west, and stamped with the word Nippon on their bases. This practice began in 1891 in response to the U.S. McKinley Tariff Act, which forbade the import of items that weren't "plainly marked, stamped, branded, or labelled in legible English words." Unfortunately, many reproduction or fake pieces were also produced. In 1921 "Nippon" was no longer accepted by U.S. Customs Agents as the correct name of origin so from then on, imported Japanese porcelain was supposed to be marked "Japan". This information helps us to establish provenance of this item.This item comes from a collection used by a prominent citizen of Wodonga. It is also an excellent example of Japanese porcelain of the early 20th century.A hand painted coffee cup and saucer with gold trim and floral design. The image includes tones of green shading and pink flowers.The cup and saucer have a gold trim. There are also embossed flowers on the saucer.Under saucer- Backmark - An hourglass surrounded by an upside down laurel wreath. Above the laurel wreath; "Hand Painted" Beneath the laurel wreath "NIPPON"domestic items, japanese porcelain

An empty chest, originally housing a lawn tennis and badminton set. Black and green lithographic print features couples playing mixed doubles tennis and badminton in Cassiobury Park, with Cassiobury House in the background. Inscription: THE CASSIOBURY GAMES OF/BADMINTON AND GARDEN TENNIS/LONDON/DEAN & SON 160 FLEET STREET. The hourglass court used in Wingfield's version of lawn tennis is depicted in this lithograph. Materials: Wood, Metal, Ink, Glue, Paint, Paper, Lacquertennis

A chest (.1), housing a lawn tennis and badminton set. Black and green lithographic print features couples playing mixed doubles tennis and badminton in Cassiobury Park, with Cassiobury House in the background. Inscription: THE CASSIOBURY GAMES OF/BADMINTON AND GARDEN TENNIS/.../LONDON/DEAN & SON 160 FLEET STREET. The hourglass court used in Wingfield's version of lawn tennis is depicted in this lithograph. Contents include: racquets (.2 -.3); tennis balls (.4 - .5); shuttlecock (.6); badminton net (.7); guy ropes (.8 - .9); ornate pegs (.10 - .11); mallet (.12); and net posts (.13 - .14, 2 parts each). Materials: Wood, Metal, Ink, Glue, Paint, Paper, Lacquer, Gut, Rope, String, Velvet, Bird feather, Felt, Rubbertennis

This remnant of a ships bell was recovered from the wreck site of the CHILDREN by Flagstaff Hill Divers on 1 October 1973. (Diving identification number S.M24/10-73, Accession number 24). The artefact had lain in the ocean off Childers Cove since the vessel’s disastrous sinking there on 15 January 1839. Other similarly high value metallic objects raised from the site, and now in the Flagstaff Hill collection, are the ship’s signal cannon (1963), and the ship’s anchor (1974). A ship’s bell was normally struck by the lookout at the foreward part of a vessel, following orders (“Strike the bell”) from the officer of the watch at the helm, or as a warning signal of danger ahead. Its main function was to keep the crew aware of time. Each 24 hour period was divided into 4 hour work-shifts, or watches, and each of these was divided into 8 half hours, or glasses (each half hour being determined by the time it took between each turn of the ship’s hourglass). The six watches were the first watch from 8pm to midnight, the second or middle watch from midnight to 4am, the third or morning watch from 4 to 8am, the fourth of forenoon watch from 8am to midday, the fifth or noon watch from midday to 4pm, and the sixth or dog watch from 4 to 8pm. Within each watch the first half hour would end with one bell, the second with two bells, the third with three bells, and so on until their work-shift ended with the ringing of eight bells. The CHILDREN left Launceston on 11 January 1839 and immediately struck heavy weather. By the evening of 15 January Captain Browne had been continuously on duty for 4 days and needed sleep, his First Mate (T. Gay) was incapacitated with seasickness, and the task of command was given to the Second Mate (W. Wentworth). At two bells into the first watch, or 9 o’clock that night, the captain went below. Two hours later, at six bells into the first watch, or 11 o’clock that night, the lookout cried “Breakers close ahead”. Within a minute the ship struck the rocks at the entrance of Childers Cove. Within twenty minutes the huge seas had taken her stern, three masts and much of her weatherside, leaving survivors clinging to the forecastle. Within two hours the wreck had completely disappeared. If anyone could have rung the bell by then, it would have been to strike two bells into the middle-watch, or one o’clock on the morning of 16 January. An 1859 Victorian Register of Wrecks from 1835 to 1858 remarks the CHILDREN “Ran ashore through an error in the reckoning and a bad lookout [and] Became a total wreck”. 22 passengers and crew survived the tragedy, but 16 lives were lost, including the captain and second mate, and 8 children. The shipwreck of the CHILDREN is of State significance ― Victorian Heritage Register S116A part of a brass ship’s bell, recovered from the wreck of the CHILDREN. The upper part, or dome of the bell, has corroded away, leaving the lower portion, or mouth of the bell, largely intact. However this lower surviving portion has been severed vertically with a clear (saw?) cut, leaving a regular 1cm gap down one side of the bell. It is an evocative relic, attractively aged on the seafloor, bearing layers of aqua-marine verdigris and white limestone accretion on a dull bronze surface. There is no visible ship’s name on the bell. flagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, the children, bell, ships bell, childers cove, henty brothers, james henty & co, sea-watches, nautical time, james henty & co, bell from the children