Louis Heinrici, Germany, circa 1900 a small Stirling type hot air engine in which a body of air is worked constantly, being alternately heated and cooled during each revolution of the crankshaft. Heinrici hot air engines are of the valveless, closed cycle type, generally called Stirling cycle engines, after Robert Stirling, the Scottish Presbyterian minister who pioneered their development in the early 1800's. They operate by alternately heating and cooling a quantity of air, called the working fluid, contained in the engine's internal spaces. Heat is applied externally and passes through the cylinder wall, heating the working fluid, which is then expanded against a piston to do mechanical work. After heating and expanding, the working fluid is moved to a cool space where it cools and contracts before being returned to the hot space for the cycle to repeat. It has a displacer (just a loose piston), below and in the same cylinder as the power piston to which it is connected via cranks and linkages so as to lead by 90degrees of crankshaft angle. The displacer space and the piston space are connected by the annular gap around the loose fitting displacer so that the working fluid moves between these spaces and changes volume by the appropriate ratio as the engine rotates. Because they have no valves and experience no sudden pressure changes, Stirling engines are noted for quietness and reliability. Heinricis use air at atmospheric pressure for their working fluid, but for higher specific output (power for size) and better efficiency, modern Stirling cycle engines use pressurised gas- air, nitrogen, helium or hydrogen.Historic - Hot Air Engine - MotorHot Air Motor made of Steel with two drive wheels. a small Stirling type hot air engine in which a body of air is worked constantly, being alternately heated and cooled during each revolution of the crankshaft. Heinrici Motorheinrici hot air motor, puffing billy

The Ballarat School of Mines was established in 1970 and was the first school of Mines in Australia.A number of Ballarat School of Mines Annual General reports bounds in a dark blue hardcover with black leather spine. Includes some illustrations such as the Ballarat School of Mines Senior Staff.mining, mining alumni, geometry, steam, botany, ballarat school of mines, alfred mica smith, j f usher, andrew anderson, chemistry, metallurgy, a e c kerr, henry j hall, veterinary science, robert e weir, assaying, mineralogy, petrography, algebra, trigonometry, applied, mechancis, land surveying, mine surveying, dynamics and heat, sound and light, magnetism and electricity, carpentry and joinery, architecture, photography, john warrington rogers, james bickett, thomas wanliss, henry cuthbert, museum, william huey, steele, and, gas, engines, mine managers certificate, john m sutherland, charles e campbell, cyanide plant, mining laboratory, samuel thornton, daniel walker, percy osborne, robert allan, hubert murphy, charles deane, ernest trend, thomas evans, alfred johnston, boer war, richard maddern, underground, ferdinand krause

This Johnson Bros. (USA) Locomotive Type Boiler was from a steam shovel (that moved on rails) that excavated rock and soil during the construction of Stevens Weir near Deniliquin NSW in 1934. It has a working pressure of 100psi. This is an example of a fire tube boiler where the fire from the fire box heats the water surrounding the fire tubes running through the boiler, smoke escapes out the smoke stack and the steam is captured in the dome and sent through pipes toward other engines in the Port of Echuca Steam Display. Two glass gauges are fitted on the side of the firebox. Two safety valves are fitted at the top of the boiler to maintain the correct and safe pressure. It still functions today for visitors most days of the week.A good example of the technology and industrial history of the Riverina region of southern NSW and northern Victoria. It is an integral part of the Port of Echuca Steam Display running secondary engines off the steam produced within this boiler. Large cast iron, fire tube boiler with 124 fire tubes, fire box, steam dome and exhaust chimney. boiler, johnson bros, steam display, kevin hutchinson steam shed

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

The first five pages are photocopies of photos:- 2 of Rae's Crushing Works; Victoria Quartz on Victoria Hill, Ironbark; Looking North from Old Chum Hill to the Victoria Hill; Victoria Hill - from Rae's Open Cut. Introduction covers location of buildings and mines. Mentioned are:- North Old Chum Mine, Ballerstedt's First Open-cut, Quartz Veins (Spurs), rock formations pitching North, Prospecting shafts 1929, Concrete dam, Engine beds of Lansells Big 180 Mine, Lansells Big 180 Shaft, twenty stampers crushing battery, Lansell's Cleopatra Needle type chimney, Victoria Quartz Mine, Victoria Quartz dams, Rae's Open-cut, Quartz once roasted here to an intense heat, Anticlinal Arch New Chum Line, small primitive tunnels, Prospecting tunnels, Floyd's small 5 head crushing battery, Great Central Victoria (Midway) Shaft, Great Central Victoria engine-bed, Ballerstedt's small 24 yard claim, The Humboldt, Adventure ground, The Advance, Luffsman & Sterry's Claim, A round shaft. Small piece of paper with 'Notes on Victoria Hill complete. Notes prepared by Albert Richardson.document, gold, rae's crushing battery, rae's crushing battery, rae's crushing works, victoria quartz mine, from old chum hill, victoria hill from rae's open cut, ironbark, hercules & energetic, midway, wittscheibe, great central victoria, mr & mrs conroy, central nell gwynne, gold mines hotel, john brown knitwear factory, new chum & victoria, rotary club of bendigo south, north old chum, ballerstedt's first open-cut, lansell's big 180 shaft, cleopatra needle type chimney, a roberts & sons, mr e j dunn, h harkness & sons, eureka extd, new chum railway, pearl, inrush of water at victoria quartz, floyd's small 5 head crushing battery, great central victoria (midway), ballertedt's small 24 yard claim, humboldt, humboldt, great central victoria, victoria hill, bendigo & vicinity 1895 p51, j n macartney 1st edition 1871, bendigo goldfield registry 1871, plan of new chum line, mr rae anderson, annals of bendigo obituary 1904, bendigo advertiser, b m l records mines dept, patterson's goldfields of victoria, dickers mining record 23/11/1861, australian mining standard special edition 1/6/1899 p40, bendigo mines ltd, chinese joss house, fortuna, the victoria goldfield 1851 to 1954, the victoria hill 1854 to 1949