Showing 7 items
matching evershed and vignoles
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Kiewa Valley Historical SocietyMeter Millivolt, after 1950
... Evershed & Vignoles Ltd (founded 1895) ...This milli-volt meter was manufactured after 1950 and used by the SEC Vic (Kiewa Hydro Electricity Scheme) from that date until late 1900's. It was used to measure very small voltages associated with the operation of the various Hydro Generators. The readings were able to be shown by the resistor in use in the current circuit. During this time period, high quality testing instruments were either sourced from Europe or England.This milli-volt meter is very significant to the Kiewa Valley as it was used by those electrical technicians, who were part of the Kiewa Hydro Scheme. An "off spin" from the Scheme was the beginning of an explosion in "human" resources into the Kiewa Valley. This influx of population transformed the region from that of a basically quiet rural region to one which evolved into both industrial and larger residential community. This evolution in the Kiewa Valley created a change, not only in the "physical" landscape(better roads and infrastructure), but also the socio-economic growth within the Valley allowing other "tourist" based industries to expand within the valley and Alpine areas.This millivolts DC meter was used in the 1950's. It is contained in a wooden box and has two coloured (red/black, positive and negative) screw tight knobs which have bake-lite connections. It also has a covered (black tin) view meter marked from zero to 10 millivolts. Underneath this and within a round bake-lite is a small adjustment screw. The top of the box is fastened onto the main structure by six brass screws. The back of the structure is fastened by eight brass screws and there are four small bake-lite rest knobs.On the face of the millivolt compartment , and at the top "TO BE USED WITH DIAL HORIZONTAL TEMP. COEF. +- .08 % PER oC. Underneath the scale "MILLIVOLTS D.C. F.G." (LEAD RESIS. .05 OHMS)" underneath and to the left "MADE IN ENGLAND BY" "EVERSHED & VIGNOLES Ltd" and to the right "No. 857842" underneath Regd. TRADE MARK MEGGERkiewa valley tourism, victorian alps, alternate energy supplies, alpine population growth -
Kiewa Valley Historical SocietyMeter Ammeter Recorder, Circa 1950
... Evershed and Vignoles Ltd ...This testing voltmeter recorder was last certified by SEC Vic laboratories on the 17/4/77. It was used extensively as mobile recorder placed for periods of one month at locations experiencing unacceptable fluctuations of power. These locations would cover the North East regions of Victoria. They cover voltage drops at domestic and business properties especially those that were experiencing regular fluctuations(daily) at approximately the same time of the day. As the electrical network is required to operate within a set level of voltage, fluctuations outside of this has to be investigated and necessary remedial action taken. This is especially so for rural properties where power "drainage" can occur through animal/bird and tree interference. It can also be the result of defective wiring and overloading at peek operational times (milking machines).This mobile voltage recorder is very significant to the Kiewa Valley because it highlights the difficulties that can occur in maintaining a power supply that experiences fluctuating power demands by the rural industries that it supplies. The requirement of a mobile testing apparatus to cover the various sections in the Kiewa Valley and other rural areas in the northeast region is one of necessity as electricity once connected to a rural property is a labour saving supply as generators on rural properties require a higher degree of maintenance an ultimately at a higher cost. The testing of the SEC Vic supplied electricity to rural properties,those who had previously run on generators, had to be quick and unassuming with certainty of correct supply levels.The mechanism of this voltage recorder has been installed(by the manufacturer) into its own protective wooden box. This box has a front (swing open) lockable section which permits direct access to the installed measuring equipment (for servicing and data collection). The top section of the box has two screw on terminals for access to the machine being tested. This tester has its own inbuilt ink supply facilities and a mechanical clockwork device that unwinds a roll of paper onto a second roll at a rate of 10 mm per hour. The recording chart is marked with time slots against voltage. There is a recording arm which has an ink pen at the end. Both arm and pen carry the ink supply from the ink reservoir, located on the left side of the cabinet door in specially constructed bottle holder( three small bottle capacity). To record a suspect power problem to a home or business establishment the voltmeter is connected to a power supply outlet being tested and wind the recording clockwork mechanism (gives a four week running time). Before leaving the recorder in situ the electrician checks to see if the chart is recording the correct voltage and that the clock mechanism is advancing correctly.On the front of the access "door" at the top a metal label "RECORDING AMMETER" below this "MURDAY SYSTEM" below this "ALTERNATING CURRENT" and below this the manufacturer's registered number "No. 139156" Below this is a metal tag with State Electricity Commission of Victoria Electrical Engineer's Section equipment number "338" Below these tags and above the viewing window is the manufacturer's dtails "EVERSHED & VIGNOLES Led LONDON"sec vic kiewa hydro scheme, alternate energy supplies, alpine feasibility studies temperature, rainfall, power outages -
Kiewa Valley Historical SocietyCase Volt Meter Recorder, Circa 1950 to 1977
... Evershed & Vignoles Ltd (founded 1895) ...This case is for a testing voltmeter recorder. The last time it was certified by SEC Vic laboratories on the 17/4/77. It was used extensively in the transportation of the mobile recorder which was sometimes placed for periods of one month at locations experiencing unacceptable fluctuations of power. These locations would cover the North East regions of Victoria. They cover voltage drops at domestic and business properties especially those that were experiencing regular fluctuations(daily) at approximately the same time of the day. As the electrical network is required to operate within a set level of voltage, fluctuations outside of this has to be investigated and necessary remedial action taken. This is especially so for rural properties where power "drainage" can occur through animal/bird and tree interference. See KVHS 0302 (A) for the instrument.This case for a mobile voltage recorder is very significant to the Kiewa Valley because it highlights the difficulties that can occur in maintaining a power supply that experiences fluctuating power demands by the rural industries that it supplies. The requirement of a mobile testing apparatus to cover the various sections in the Kiewa Valley and other rural areas in the northeast region is one of necessity as electricity once connected to a rural property is a labour saving supply as generators on rural properties require a higher degree of maintenance an ultimately at a higher cost. The testing of the SEC Vic supplied electricity to rural properties,those who had previously run on generators, had to be quick and unassuming with certainty of correct supply levels.This heavy and thick all leather case for the "easy" transportation of the Volt meter recorder has a opening top which pop riveted to the main body(rivets are aluminium). The all leather top has a shaped carrying handle which is also riveted on. There are two straps on the side of the top which can be fastened to the main body by metal "shoe" buckles. The bottom end is secured to the main bag by large rivets.Tick grade stitching is on all corners.Nilsec vic kiewa hydro scheme, alternate energy supplies, alpine growth in electricity consumption -
Federation University Historical CollectionScientific Instument, Evershed and Vignoles Ltd, Voltmeter
... Evershed and Vignoles Ltd ...AC and DC volmeter. 50-150 volt, moving iron. Analogue display, non-linear semi-circular lacquired wood case. Black metal hinged lid for scale window. User instructions inside lid. Three terminal posts, and a contactor, at top end. Leather carry strap top end. Registered trade Mark "Megger" Serial number 137872scientific instrument, voltmeter, evershed and vignoles -
Federation University Historical CollectionScientific Instument, Evershed and Vignoles Ltd, Voltmeter
... Evershed and Vignoles Ltd ...DC Voltmeter 0-150 volt, analogue display on semi-circular scale. Scale wndow protected wit hinged black metal lid. Lacquered wood case. Leather carry strap on right hand side. Two terminal posts on bottom end. Trade Mark "Megger" Serial Number 117729scientific instrument, voltmeter, evershed and vignoles -
Kiewa Valley Historical SocietyElectric Megger (Insulation Tester) and its case
Megger as the device was called, is in fact its brand name. It is a device that supplies a DC (direct current as per car batteries) voltage to enable testing of electrical apparatus. This particular device produces 250volts DC when the handle is turned vigorously. If an electrical device, such as a kettle or toaster, blew a fuse or tripped a circuit breaker, when switched on, then it must be checked electrically before any more use. Following the repair of the faulty item a megger would be used to check if either of the AC 240volt plugs leads were touching the metal case (earth). The output leads of the megger would be connected with one to the earth (metal case) and the other to each of the power connections in turn. A good megger reading of 50,000 ohms (resistance) would enable the device to be returned to service. A reading of zero ohms resistance would mean that it would again blow a fuse, and was therefore unsafe to use. In the electrical industry e.g. the former State Electricity Commission, a megger would be used to test lots of similar item in sequence. Because of the vigorous job of winding the handle, two persons were often used to save time. One would crank madly whilst the other shifted the leads. This particular megger is of a small voltage, but other meggers are bigger and have a few ranges of DC voltages able to be selected. The optimal megger for large Generating machines was motor driven megger. This was applied to the device being tested for a duration of approximately 30 minutes with reading of the resistance taken at regular intervals.All equipment belonging to the State Electricity Commission of Victoria was labelled with a metal plaque attached to it. The SECV constructed the Kiewa Hydro Electric Scheme in the Upper Kiewa Valley and on the Bogong High Plains. The scheme began in 1938 and finished in 1961 when this megger was used and also possibly later as the SECV remained to maintain and operate the Scheme. This megger is of significance in relation to the advancement of technology.A rectangular box in dark brown bakerlite casing. It has an agent's plaque fixed to the left of the face and on the right is the marker's recessed stamp. In the middle in a transparent window so the level of ohms can be read. The front also has two recessed fixing knobs in black. On one side is a crank handle with a knob that lifts up and is turned vigorously to create the voltage. The back has four recessed screws and four small leather pads. There is a hole on each side to insert wires. There are two copper insulated wires. The SECV Plaque states: State/Electricity Commission/of/Victoria/ Electrical Engineer's Section/ No.1747 The Agent's Plaque states: H. Rowe & Co. Pty Ltd/Melbourne & Sydney/Sole Agents/in Australia for/Evershed & Vignoles Ltd Maker's states: 500 volts/Megger/Regd Trade Mark/Made in England/Patent No/400728electrical meters, electrical equipment, fuses, safety, state electricity commission of victoria, mt beauty, bogong village -
Federation University Historical CollectionBook - Booklet, The Institute of Physics Handbook: Exhibition of Scientific Instruments and Apparatus, 08/1960
The Exhibition of Scientific Instruments and apparatus was set up to show the professional scientist the latest tools of trade and glimpses of future developments in the field of instrumentation .Cream soft covered book of 198 pages relating to an exhibition of scientific instruments and apparatus held at the School of Chemistry, University of Sydney. Exhibitors in the exhibition include: Advance components, Airmec, Akashi, Aladdin Industries, Amalgamated Wireless, Applied Physics Corporation, Ardente, Austral Engineering Supplies Pty Ltd, Avo Limited, Baird Atomic, Baker, Baldwin Instrument Co., B. and Relays, Barnstead Still and Steriliser Co., Beckman, Bender, Boonton Radio Corporation, Bosch, British Electric Resistence, British Physical Laboratories, Buccho, Bundenberg, Buehler, Bureau of Analysed Samples Ltd, Business Equipment Pty Ltd, Cambridge Instrument Co, Casella, Chamberlain and Hookham, Cossar, Cooke Troughton, Counting Instruments Co, CSIRO, Dawe Instruments, Difco, Duff and Macintosh, Dumont, Dupree, Dynatron Rodio Ltd, East Lancashire Chemical Co., Edwards High Vacuum Ltd, Eletircal Equipment Australia, Electronic Industries, Electroscientific Industries, Electrothermal Heating, Elema Schonanda, EMI, Englehard, Epprect, ERD Engineering, Ericsson Telephones, Esdaile, Ether Ltd, Evershed and Vignoles, Faraday Electronic Instruments, Federal Products, Filtron, Fischer, Fluke, Foot, Fortiphone, PX Fox, Foxall Instruments, Gambrell Bros, Gardener and Salmon, Garlick, Gelman , Gossen, Griffen and george, Gurr, Guthrie. Hasler, Headland Engineering Developments, Heraeus, Hersey Sparling Meter Co, Hewlett Packard, Heyneco, Hilger and Watts, Instron Engineering, Institute of Physics, Intermetal, Internation Resistance Corporation, Jacoby Mitchell and Co, Janke and Kinkel, JENA-er Glasswerke Schott and Gen, Keithly Instruments, Kelvin and Hughes, Kent, Kipp and Zonene, Kovo, Krautkramer, Kruss, Lambrecht, Land Pyrometers Leeds and Northrup, Leeds Meter Co, Leybold, Liddle and Epstein, Long Industrial Equipment, macdougall, McKinlay Fletcher, McLellan, Marconi Instruments, Masruements, Metrimpex, Metrohn, Metron, Mettler, Mica Corporation, Minneapolis Honeywell Regulator Company, Moisture Regulator, Morganite, Morris, Moseley, Muirhead, Mullard- Australia, Nagard, National Instrument Co, National Standards Laboratory, Negretti and Zamba, Nira, Northeastern Engineering, Nuclear Equipment Ltd, Ronald payne, Philbrick, Philips, Physik Instruments, Pincombe, Precision Tools and Instrument Co., Printed Electronics, Pye, Quicfit, Radion Corporation of Amerixa, Radio Frequency Laboratories, Radiometer, Rank Cintel, record Electric Co., Reichert Optische Werke, Rhode and Schwarz, Ridsdales and Co, Rocol, Rotameter, Rototherm, Rowe, George Sample, Santon, Sanders, Sartorious-Werke, Sauter August, Schneider, Scruttons, SEFRAM, Selby, Sensitive Research, Servomax Controls, shckman, Shimadzu, Siemens, Simpson, Sodeco, Soiltest, Solartorn, Southern Instruments, Albert Speck, Stanford X-Ray, Sunvic Controls, Sweda, Sydney County Council, Tamson, techne Cambridge, Tektronix, Telefunken, Telequipment, Andrew Thom, Thompson J, Langha,, Thronethwaite, Tinsley, Tokyo Opptical co., Townsen and Mercer, Treacerlab, Tylors, Unicam, Union OPtical Co, Varian Associated, Venner Electronics, Vidler Thornethwaite Engineering, Crosweller, Wandel and Golterman, Watson Victor Limited, Wayne Kerr Laboratories, waveforms, West Instruments, Herman Wetzer, Wild Instrument Supply Co, Yokagawa Electrical Works, Carl Seiss, Zwick.science, instruments, apparatus, scientific objects
