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The Ed Muirhead Physics Museum
Photograph, Optical munitions & E.R. Johnson
Black and white photograph of Dick Johnson using a polarimeter. Photo is glued on cardboard backing with red border.Hand written on back: “Optical Munitions E.R. (Dick) Johnson MSc candidate on polarimeter”. Stamped on back: “University of Melbourne School of Physics Melbourne” -
The Ed Muirhead Physics Museum
Periscope, Optical munitions : part of prototype tank
Metal hollow vessel with glass insert opens at one end. At opening metal round plate is perpendicular and has brass cylinder attached. -
The Ed Muirhead Physics Museum
Dosimeter, X-ray
Polished metal cylindrical X-ray dosimeter stored in red rectangular cardboard box. 26.1 = box 26.2 = dosimeterEngraved on dosimeter: “C1948” On box: “C.K. Dosimeter”;”Sole Distributors Cinema Television Ltd Lower Sydeham London S.E.26” -
The Ed Muirhead Physics Museum
Lamp, Standard Pentane
Vernon Harcourt’s Standard Pentane Lamp, consisting of the following components: 27.1: Wooden hinged box with key 27.2: Glass Pentane lamp 27.3: Metal clamp attachment 27.4: Empty glass bottle 27.5: Glass bottle stopper 27.6: 1.5 CP weight 27.7: 1 CP weight 27.8: Small metal bullet 27.9: Instruction sheet Miscellaneous: 2 screws to be reattached to lamp green small piece of glass small flat rectangular piece of metal cotton woolLabel on front of box (27.1): “1K5”; “Natural Philosophy Laboratory No. University of Melbourne” Label on inside of box (27.1) “Negretti and Zambra Opticians Meteorological Instrument Makers to the Queen To the Prince of Wales The Royal Observatory Greenwich The British Meteorological Society Admiralty, Board of Trust, Royal National Lifeboat Institution. Holborn Viaduct. 45 Cornhill. 122 Regent Street & Crystal Palace London” (emblem also included on label). Plaque on lamp (27.2): “Nat. Phil. Lab No. Univ. of Melb.”; “Vernon Harcourt Standard Pentane Lamp No. 2. Made by Woodhouse & Rawson Electrical Manfg Coy No. 4590” Label on clamp (27.3): “Nat Phil. Lab. N. Univ. of Melb” Moulded on glass bottle (27.4): “4 oz” Inscribed on weight (27.6): “1.5CP” Inscribed on weight (27.7): “1 CP” -
The Ed Muirhead Physics Museum
Harmonic Analyser, The Stanley#3
Wooden box (28.1) containing the following (11 items + 2x21disks (sets A &B): 28.2: black enamelled harmonic analyser (main body,serial no. 37 28.3: plastic slide rule (40 inch) 28.4: Instruction manual 28.5: Long steel metal rule (92 cm) with handles 28.6: Wooden clipboard with paper 28.7: brush 28.8: fixed arm planimeter Serial No. 25498 - 4 components and box 28.9: fixed arm planimeter Serial No. 25499 - 4 components and box 28.10 Harmonic analyser black piece 28.11 Harmonic Analyser long metal attachment 28.12 Harmonic Analyser short metal attachment 28.13 - 28.55: 42 metal discs (not numbered individually) 28.56 Key to box (not numbered)Front right hand side of box in texta: “GW7446”; on inside lid of box: “GW7446”; On harmonic analyser in white: “No. 3 Harmonic Analyser Stanley London Serial No. 37. Made in England”; On clipboard (28.6): ?“P.Cholec Shade”; Stamped on brush (28.7): “Made in England Pure Bristle”; Label in planimeter box (28.8): “7/124/F/152/500 Fixed Arm Planimeter Serial No. 25498. 1 Rev = 100 sq. cms. Constant = 18.676”. Inscribed on planimeter (28.8): “Albrit 25498 Made in England” Label in planimeter box (28.9): “7/124/F/152/500 Fixed Arm Planimeter Serial No. 25499. 1 Rev = 100 sq. cms. Constant = 18.676”. Inscribed On planimeter (28.8): “Albrit 25499 Made in England” On discs 28.13-28.55: Half are “A” disk and half are “B”. All are inscribed. -
The Ed Muirhead Physics Museum
Microtome/W... (H.A. Waters)
Microtome for cutting resin embedded tissues for electron microscopy. In 1957 a modified hodge microtome redesigned and built by H.A. Waters of the Melbourne University Department of Physics was acquired. The Waters microtome is of thermal expansion type - the rod “A” is heated and by expansion pushes the resin block forward by a fraction. It is mounted on a long cast iron base. The movement of the block is eccentric drawing the specimen away from the knife after cutting, The glass knife ‘B’ is adjustable by means of a modified microscope column screws ‘C’. The microtrome is driven by a continuous action electric motor mounted on the common base. Hand cutting can also be done. The cutting was controlled by viewing through a Leitz Binocular microscope mounted on the same base. The original microscope was subjected to nine modifications by Dr S Weiner from whose PhD Thesis (1962) ‘Electron Microscopical Studies of the Liver’ this information was obtained. (text provided by Professor H Attwood) Microtome made of metal and enamelled in light blue. Components are identified by the use of stick on labels. The microtome is mounted on a long cast iron rectangular base and has an electrical cord for connection to a power point.Plaque on back: “Pathology Department, University of Melbourne Serial No. 0091. Date: 7/7/1968” -
The Ed Muirhead Physics Museum
Periscope component
Used as a periscope instrument. Twin pair of periscope components made of iron and covered in olive green enamel. -
The Ed Muirhead Physics Museum
Liquid nitrogen trap
Demonstration cut-away model of a liquid nitrogen trap for vacuum system, consisting of two coaxial copper tubes, diameters approx. 3 and 2.5 inch resp. -
The Ed Muirhead Physics Museum
Instruments, Miscellaneous
Demonstration model: Metal cylindrical instrument has three tubes attached to body with a glass disc in one tube (= viewing port). Large part of instrument is cut away. Model part of accelerator beam line. Bolt holes on the base and top of instrument for attachment into vacuum lines. -
The Ed Muirhead Physics Museum
Mechanical equivalent of heat(J): remnant of torque mechanism
From label: Remnants of the “J” Apparatus beam balance for the measurement of the mechanical equivalent of heat. The solid object is the rotating magnet the construction of which is illustrated on the cover of \\\"A man Ahead of his Times\\\". Made in the Nat. Phil. Workshop for J experiment.Three components of “J” Calorimeter made of metal and covered in green enamel. One small weight from 33.3 has become detached from string. -
The Ed Muirhead Physics Museum
Gas-powered engine
Gas-powered engine used to drive Grayson’s original ruling engine (Cat. no. 35) Because of frequent failures of the electric power supply, Grayson preferred to use a hot-air engine, driven by a gas flame, to turn the engine so that, once a ruling had commenced, it would continue uninterrupted until the end. -
The Ed Muirhead Physics Museum
Engine, Grayson Diffracting Grating Ruling
Made by Henry Grayson at home with the help of William Stone. Used to rule diffraction gratings, achieving excellent results of 2cm squared rulings on speculum metal. The instrument was transferred to Melbourne University, and used by Professor Lyle from 1917-30. Information attached to the front of object and statistical information on stand on top of object.Grayson Diffraction Grating Ruling engine consisting of multiple complex chrome and brass components. Enclosed in specially made glass and wooden display box. -
The Ed Muirhead Physics Museum
Pyrometer, Cambridge Optical
Cambridge Optical Pyrometer constructed with round black face erected on wooden tripod. A single yellow wire about 1 metre length is left floating (i.e. wrapped round one leg).On face: “Degree Centigrade Cambridge Optical Pyrometer ?The Cambridge Scientific Instrument Co. Ltd Cambridge England No. 42610” -
The Ed Muirhead Physics Museum
Beam Balance, with wooden box
Beam balance made of brass, stainless steel with “ tortoise shell pattern” decoration. Enclosed in display case with glass windows and sitting on four legs for levelling. Made by F. Sartorius, Gottingen. Plaque on front of box: “F.Sartorius Werkstatte fur Wissenschaftliche Instrument Gottingen”. Plaque on balance: “Patent F.Sartorius Gottingen No. 5936” -
The Ed Muirhead Physics Museum
Spectrograph, Double Prism Optical
Double Prism Optical Spectrograph made of standing L-shaped metallic base in grey enamel which supports a brass collimator/telescope abutting a wooden box containing two prisms and camera. Tradition has it that it was designed by Laby but there is no supporting evidence.Engraved on brass cylinder: “Adam Hilger Ltd London England” On end of brass cylinder: “Screw = 5m/m Adam Hilger Ltd London England No. F31.301/25403” -
The Ed Muirhead Physics Museum
Photograph, “J” Apparatus in Laboratory
Black and white photograph of “J” Apparatus laboratory (refer to Reg No. 33 and Reg No. 34). Laminated photograph is mounted on wood and secured with masking tape. Metal hook on back for hanging. Frame is painted black.Stamped on back: “Artfilm Laminating Block Mounting Specialists, 337 Balwyn Road, North Balwyn 3104. Tel: 816 3691” -
The Ed Muirhead Physics Museum
Chart, Image/Photo Grayson ruling engine, details of manufacture
Cardboard image chart covered in clear plastic showing a variety of black and white photomicrographs, measurements and images: - curve indicating condition of screw prior to regrinding - curves showing progressive improvement during regrinding - curve showing result of corrections. - general view of Apparatus for cutting ratchet teeth. - apparatus for refining crudely separated abrasive - photomicrographs of Abrasives used in lapping the lead screw - photomicrographs of Grayson’s test rulings (Approx. 1875) - Diamond Carriage Front View - Plan of Apparatus for testing the screw - Measurements of Grayson’s Test Rulings -
The Ed Muirhead Physics Museum
Lens with box and lid
Round glass lens stored in rectangular cardboard box with lid and supported by cotton wool.On inside of box in pencil: “20/1/40 (?dictatomigialls of l/4). On top of box: “wray flat”. -
The Ed Muirhead Physics Museum
Slide, Grayson Test plate with case
Test plate rectangular glass slide with rulings under circular cover glass within yellow circle and brown border enclosed in red hinged box with blue lining. Described as “A sample Microscope slide - Test plate with rulings from 30,000 to 120,000 per inch”. This is the only surviving ruling reaching up to 120,000; hence is both unique and valuable.Labels on slide: “Test plate 10,000 to 120,000. Ruled by H.J. Grayson, Melbourne”. No of lines per inch Band 1-10,000 2-20,000”. On label on side: “No of lines per inch Band 3 -30,000 4 - 40,000 5-50,000 6-60,000 7-70,000 8-80,000 9-90,000 10-100,000 11-110,000 12-120,000” -
The Ed Muirhead Physics Museum
Slides, Test with box
8 micrometer (microscope) test slides stored in wooden box with storage slots. Cardboard label inside box: “From Melbourne University Physics Dept Museum. Probably Grayson trials or William Stone” “ Microrulers/W S” on lidOn box: “Micronmemters W.S.” On 43.2: unlabeled, with glass rectangle 30x10mm cemented on microslide On 43.3: red and gold emblem/”Micronmemter 100 and 1000 in an inch” On 43.4: “Depth 0.10 mm; contents of 4 squares 0.001 C.mm ” On 42.5: unlabeleed square 9 x 7 mm. On 43.6: “1/100 1/500 inch” On 43.7: “200/inch 500/ inch 1000/ inch 2000/ inch” On 43.8: “1/100 1/500 inch” On 43.9: “Heavy lines up to 70,000. Higher Lines broken up” : “120X”(??) -
The Ed Muirhead Physics Museum
Slide with box and lid
Slide showing Wallace’s Replica of Rowland’s Plane.Typed label on slide: “Wallace’s Replica of Rowland’s Grating 14500 lines to the inch Central Scientific Company, Chicago ILL” Label on box: “Diffraction Grating (Wallace) 14500 lines/inch” -
The Ed Muirhead Physics Museum
Optical flat with box
Blank clear slide with cardboard box. Loose paper with slide “Plane parallel flat for adjustment of spectrometer”. -
The Ed Muirhead Physics Museum
Engine, Micro-ruling engine, Wm Stone #1
From attached information on display: This engine was designed to explore the nature and magnitude of mechanical defects in ruling engines. It was used to cut simple rulings for the calibration of microscope fields of view.First micro-ruling engine made (1934), by Stone, with flat rectangular iron base and wheel mechanism. A scriber made of a gramophone needle is in place over the glass slide on a ruling table. A second holder for a diamond lies beside the instrument. -
The Ed Muirhead Physics Museum
Engine, Micro-ruling engine, Wm Stone #2
The advance mechanism on the large brass wheel does not seem to have been completed.Second micro-ruling engine (1934) erected on a wooden base. A simple steel cutter is in place over the glass slide on the ruling table. -
The Ed Muirhead Physics Museum
Diffraction Grating with cover
Diffraction grating, 1-3/4in x 1in ruled on 2-1/4 in. disk of speculum metal, recessed in 2-1/2 in. dia. brass holder, itself mounted on a flat, round base with three levelling screws. Cylindrical brass lid. -
The Ed Muirhead Physics Museum
Glass microscoepe slide, 3 Abbe calibration microrulings
Glass slide with three “silver ” circles enclosed in small hinged brown leather box lined with black velvet. No calibration ruling details available.On box: “Diffraction splatte nach ABBE C.Zeiss Jena” -
The Ed Muirhead Physics Museum
Clock, Cooke Astronomical with case
Used by Prof. Laby probably in experimental determination of “J” the mechanical equivalent of heat. Also as master clock in master-slave system of clocks in Old Physics Bldg.Astronomical Cooke clock with large black face and wood-glass box casing. Enclosed in outer security case.On clock face: “T. Cooke & Sons York England” -
The Ed Muirhead Physics Museum
Canon tele-converter lens in accessory box
Part of the Laby CollectionCanon tele-converter camera lens stored in black accessory boxoptical equipment -
The Ed Muirhead Physics Museum
Canonet QL17 Camera, c 1965
Business card belonging to Betty Laby inside.Cannot QL17 model camera. Silver and black compact rangefinder with associated storage case. -
The Ed Muirhead Physics Museum
Camera accessory box
Brown camera accessory box containing assorted accessories and flash bulbs