House being removed by J. Barrows traction engine.j. barrows, traction engine, vehicle, work, private dwelling, building, sebastopol, advertisement

The design of this and other similar treadle powered dental engine (or dentist drill) was in common use by dentists from the 1870’s into the 1920's. When electricity became accessible to most communities the electrically powered dental engines began to take over from the treadle power. Over the ages teeth were extracted using picks and scissors and other gouging instruments. Bow drills, hand drills and even a "bur thimble" drill were later used to prepare cavities for filling. Some drills were made bendable by attaching flexible shanks between the metal bur and the handle, giving access to the teeth at the back of the mouth. Other mechanical devices were introduced along the way, such as clockwork drills, but they were hard to handle and inefficient. Over the centuries “dentistry has been performed by priests, monks and other healers. This was followed by barbers; the barber’s chair may well have been the precursor to the dental chair. “(SA Medical Heritage Society Inc.) In 1871 James Morrison patented the first commercially manufactured 'foot treadle dental engine', the first practica dental engine although others had been introduced as early as 1790 (by John Greenwood). Handmade steel burs or drills were introduced for dental handpieces, taking advantage of the significant increase in the speed of the drill. In 1891 the first machine-made steel burs were in use. The treadle drill reduced the time to prepare a cavity from hours to less than ten minutes. In 1876 the Samuel S. White Catalogue of Dentist Instruments listed a 12 ½ inch wheel diameter dental engine, with 14 bright steel parts, for sale at US $55 In today’s market, this is the equivalent to US $1200 approx. The specifications of that dental engine are very similar to the this one in our Flagstaff Hill Maritime Village’s collection. It is interesting to note that workings of a similar treadle dentist drill were used and modified to power a treadle spinning wheel of one of the volunteer spinners at Flagstaff Hill Maritime Village. The foot treadle dental engine was a milestone in dental history. “Historic importance of treadle powered machines; they made use of human power in an optimal way” (Lowtech Magazine “Short history of early pedal powered machines”) The invention of a machine to speed up the process of excavation of a tooth lead to the invention of new burs and drills for the handpieces, improving speed and the surgical process of dentistry. They were the fore-runner of today’s electrically powered dental engines. This treadle-powered dentist drill, or dentist engine, is made of iron and steel and provides power for a mechanical dental handpiece that would be fitted with a dental tool. On the foot is painted lettering naming it "The Brentfield" and there is a fine line of light coloured paint creating a border around the name. The paint under the lettering is peeling off. The drill has a Y-shaped, three footed cast iron base, one foot being longer than the other two. A vertical frame is joined into the centre of the base, holding an axle that has a driving-wheel (or flywheel) and connecting to a crank. A slender, shoulder height post, made from adjustable telescoping pipes, joins into the top of this frame. On the post just above the frame is a short metal, horizontal bar (to hold the hand-piece when it is not in use). A narrow tubular arm is attached to the top of the stand at a right angle and can move up, down and around. There is a pulley each side of the joint of the arm and a short way along the arm is fitted a short metal pipe. A little further along the arm a frayed-ended cord hangs down from a hole. At the end of the arm is another pulley and a joint from which hangs a long, thin metal pipe with two pulleys and a fitting on the end. A treadle, or foot pedal, is joined to the long foot of the base, and joined at the toe to the crank that turns the driving-wheel. The metal driving-wheel has a wide rim. Touching the inside of the rim are four tubular rings that bulge towards the outside of the driving-wheel, away from the pole, and all meet at the hub of the axle. The axle fits between the inside of the driving-wheel and the frame then passes through the frame and is attached on the other side. The driving-wheel has a groove around which a belt would sit. The belt would also fit around a pulley on the arm, at the top of the post. The pulley is joined to a rod inside the arm and this spins the drill's hand-piece and dental tool holder. The foot pedal has a cross-hatch pattern on the heel and the ball of the foot has tread lines across it. The end of the toe and the instep areas have cut-out pattern in them. "The ____/ Brentfield / __ DE IN L___" (Made in London) painted on the long foot of the base. Marked on the drill connection is “Richter De Trey, Germany”flagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, dentist, teeth, dental drill, dental engine, treadle drill, foot powered drill, treadle engine, orthodontics, dental surgery, james morrison, the brentfield, richter de trey, german dental fitting, london dental drill

Photograph by Darge Photo studios with a Collins Street address and telephone number, shows the interior of an unknown Melbourne cable tram engine house or winding house. Shows the drive mechanisms, tension adjustment, steam engine and possibly an auxiliary electric drive.Yields information about the interior engineering arrangements of a winding house.Block mounted black and white photograph onto dark grey card, stamped with studio name in gold.tramways, william st, cable trams, interior, engine house, winding house

2 Coloured photos of D Class Steam Rail Locomotive and one Black & White of same engine at Cato Park. c 1974. The engine was subject to vandalism and removed in 1988. The black & white photo of D3 608 was copies from a railway magazine. Two coloured photos & one black & white photo of "D" class 608 Steam rail Locomotive taken at Cato Park. "D" 608. Inscription on the back of both colour photos, "Vec 74. D Class Loco at Cato Park". On the black & white photo " D3 608 one of the numerous and popular D3 class, preserved in a park in Stawell, 2nd April 1978".railways.

It was the first Holden to incorporate the new "Red" engine, with a 7 main bearing crankshaft instead of the 4 main bearing crankshaft used in the "Grey" engine. The larger capacity 149 ci (2400cc) engine was first only sold attached to a three-speed manual gear box or the "Hydramatic" three-speed automatic transmission with a (column shift). Although the Controlled Coupling Hydramatic used in the EH was actually a four speed, it effectively worked as a three speed unit except at full throttle. The 179 ci (2900cc) engine was initially only sold with the "Hydramatic" three-speed. The first EH with a 179 ci engine and a manual gear box was called the "EH-S4", fitted with an up-graded manual gear box, with stronger gears than the 149ci gear box and an up-graded clutch. The three-speed manual (column shift) gear boxes had no synchromesh on first only second and third 'top gear'It was the first Holden to incorporate the new "Red" engine, with a 7 main bearing crankshaft instead of the 4 main bearing crankshaft used in the "Grey" engine. The larger capacity 149 ci (2400cc) engine was first only sold attached to a three-speed manual gear box or the "Hydramatic" three-speed automatic transmission with a (column shift). Although the Controlled Coupling Hydramatic used in the EH was actually a four speed, it effectively worked as a three speed unit except at full throttle. The 179 ci (2900cc) engine was initially only sold with the "Hydramatic" three-speed. The first EH with a 179 ci engine and a manual gear box was called the "EH-S4", fitted with an up-graded manual gear box, with stronger gears than the 149ci gear box and an up-graded clutch. The three-speed manual (column shift) gear boxes had no synchromesh on first only second and third 'top gear'Two tone, blue body and white roofon the boot of this car there is a 179 badge stating that this car was powered by the larger motor available. There was also a "Hydra-matic" badge showing this vehicle was fitted with an automatic transmission. Registered number 63454-Hholden, 1963 - 1965, car

sepia photograph on cream board. Winding engine, written across of photo ' Fortuna Hustler's mine, near Bendigo Goods Sheds 2240 ft' 5 males standing near machine. Winding machine photographed from rear of machinery from an elevated position, a group of five men standing near the controls. (Photo belonged to Albert Richardson, whose father was an engine driver at the Fortuna Hustlers Mine. ( possibly ? ) ON BACK FORTUNA HUSTLERS B R S A RICHARDSONW.H. Robinsonorganization, business, fortuna hustlers winding machine

sepia photo (postcard ) photo taken from elevated position on north side of Mitchell Street, of Railway Station, Bendigo. Fortuna Hustlers ( 2240 ft. ) mine on LH side of photo. Engine shed in centre of photo, with steam issuing from engine behind. ( not visible ) Horse and buggies in middle of street. Mitchell Street is unmade. On bottom left of card ' Railway Station, Bendigo ' On back 'Fortuna Hustlers 2240 ft ' and Mng 8, Royal Historical Society of Victoria, Bendigo Branch.place, landscape view, bendigo railway station

Black and white photo showing: 1. Carbon removed from the exhaust stack of the semi diesel engine of the Bendigo City Council road roller. 2. Section of exhaust stack before being cleaned out. 3. Piece of carbon taken from Victorian locomotive cylinder and 4 Samples of scale scabs taken from the cylinder of the diesel engines at the Little 180 Gold Mining Coy. Vincent Kelly Bendigo impressed in the bottom left corner. Information typed on the back of the photo.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, bendigo city council, little 180 gold mining coy bendigo, vincent kelly

Two red covered auction catalogues with black printing for an auction at the Fryerstown Creek Dredging Syndicate, Fryerstown on 8th February, 1945 comprising 52 H.P. Ruston & Hornsby Diesel Engine, 35 H.P. McDonald Super Diesel Engine, 8 in. Class G Thompson Water Pump, 6 in. Thompson gravel Pump, thousands of feet of Piping, Tanks, corr. Iron Buildings, Tools, Belting and Equipment. Contains descriptions of some of the lots. J. H. Curnow & Son were the auctioneers.business, auctioneers, j h curnow & son pty ltd, ian dyett collection - auction catalogue - fryerstown creek dredging syndicate, j h curnow & son, j l jamieson & co, national security (general) regulations, the cambridge press, w g wedd

This was used as a dummy propeller when test running aircraft engines.This is a heavy wooden propeller for an aircraft. It is painted blue with birch tips. It has a large centre hole of 8 cm diameter. It has 8 bolt holes of 18 mm diameter. The propeller tips are squared (ie not tapered). One side of the blades have an aeronautical curved form.aircraft maintenance, propeller

This containerswould have contained Spark plugs for internal combustion enginesHinged metal container, lid printed in blue and white"Extra range Champion Spark plugs Made in England"container, spark plugs

circa 1930s, a book containing information on the Napier Lion engine. 1920, 1930, aero engine, napier, napier lion

North Western Woollen Mills Engine Room under Constructionstawell industry

Gas Company – Stawell Engine Office and Showroom Main Streetstawell

North Western Woollen Mills Engine Room under Constructionstawell industry

This photograph shows the construction of the first bridge over the Snowy River at Orbost being built. a copy was also donated by Gil and Heather Richardson. The first pile bridge over the Snowy River was just completed by Mr Jim Granter when the 1891 flood took out the centre,. There were differences of opinion as to whether the council should pay . The Shire Secretary, Mr John Draffin, persuaded them to honour their obligations. Mr Granter and Mr Clarke finished it as a suspension bridge which was opened by Mrs William Watt. Soon after a mob of cattle stampeded, the weight snapped the cable, letting one side sag. Mr R.P. Cameron repaired it and this bridge remained until 1922. "In 1890 the contract for a bridge was let to Mr James Granter for £1450. This structure with additions and improvements made to it was to cost the ratepayers about £2,500, and its erection was proceeded with in a very satisfactory manner until, just as the greater-part of the work had been completed, the flood of 1891 came down on it, piling up mountains of logs, timber and debris against the piers, which had not been made wide enough apart to allow for. contingencies of this kind. The structure held out bravely until the turn of the flood and then gave way with a crash, about five bays from the centre disappearing in the stream." ( Snowy River Mail August 12 1893)This is a pictorial record of the construction of the first bridge over the Snowy River.A black / white photograph of four men working on the construction of a new bridge and its pylons a man is standing on a timber tower/ derrick. There are logs in the foreground, trees in the background. sheds on the left and possibly a steam engine.on back - "first bridge - 1st pile being driven"snowy-river-bridge granter-jim bridge

Bendigo Advertiser ''The way we were'' from 2001. George Lakey, of Dingee, shifted his house from Bendigo to Dingee, using the steam engine. Taken around 1918 to 1920. The clip is in a foldernewspaper, bendigo advertiser, the way we were

Sepia toned, mounted on green board. Interior of engine room, showing machines with large pistons, drive shafts and fly wheels. Inscription: plague on front of machine 'A. Harkness & Co | Engineers | 1907 | Bendigo'.A. G. Levy, (Eaglehawk photographer)organization, business, a.harkness + co

Printed document titled: Models of Simple Steam Engines by T. Jones, M. I. Mech. E. and T. Gilbert Jones, M. Sc., Wh. Sc. Includes descriptions of models. Four pageseducation, tertiary, models for engineering students.