A yellow coloured cardboard front cover with black information. Near the top reads Australian Air Publication 7453.099-3. Above the RAAF insignia reads Royal Australian Air Force and under the insignia are the details of the manual. Down the right hand side there are cardboard inserts with writing on each tab. The manual is held together by two metal staples. There is an amendment inside the manual.royal australian airforce - manuals, australian air publication, circuit breaker, circuit breaker type d

A yellow coloured cardboard cover with black information on the front. Near the top right hand corner reads Australian Air Publication 7453.098-3. Above the RAAf insigia reads Royal Australian Air Force and below the insigna are the details of the manual. Inside the manual there are several cardboard inserts with tabs on the. Down the left hand side of the manual are two metal staples.royal australian airforce - manuals, circuit breaker

Instruction - 12 pages + brown covers, centre stapled titled "Parts of Westinghouse Automatic Circuit Breaker Tramway Type", Style Nos. 5401, 5402, 5403 and 5404. Part list B6009. Shows images of the circuit breaker, lists all parts, shows images of the various parts. Has a list of company offices on the last page and the Westinghouse UK printing bureau logo.trams, tramways, electrical engineering, electrical equipment, westinghouse, instructions, maintenance

Drawing - Quarto blue print, British Thomson Houston Pty Ltd, Drawing No. XD13398, Dimensions of MR4EE Circuit Breaker, Cat No. C5708 - dated 24 May 1912. Similar to the type used on Ballarat single truck trams.drawings, british thomson houston, circuit breakers, electrical equipment

Instruction to Ballarat motormen and depot staff dated 13/1/1950, about ensuring the controller was closed in the off position before opening the automatic circuit breaker. Appears this was not done on tram 14 and a fire resulted. Significant damage can result of the action. When the tram was rewired during 2024, this fire damage was apparent. Signed by Mr. Farr.Yields information about a fire in tram 14 as the result of the controller being left open and the circuit breaker operated.Notice type on quarto paper."and depot staff" hand written in ink along title.secv, trams, tramways, faulty equipment, tram 14, fire, circuit breakers, controllers

Quarto duplicated sheet titled "Tram No. 1041", giving instructions on opening door, fault finding, circuit breakers, motor cut outs, and what to do.trams, tramways, training, faults, doors, 1041, tram 1041

The unit was used at Ballarat School of Mines in the Maths, Science and Physics Departments.Grey metal unit with Dials on the front and vents at the back. Handles for carrying. Two circuit breaker switches, two DC output sockets, two AC output socketsYellow sticker - SMB - with number 116069. Engraved on back - S.M.B.. Maths / Science / Physics Sticker on cord indicating inspection of unit - 13/04/2005. Tag Number - 032725alternating current, direct current, ac, dc, electrical, ballarat school of mines, science, maths, physics, ac/dc, scientific instrument

Although the Kiewa Hydro-Electric Scheme was first proposed in 1911, construction did not commence until 1938. As part of the push to cut electricity costs and diversify supply, the Victorian Government (circa 1930) initiated the conversion from primarily brown coal supply to hydro – electricity. Field investigations during the 1940’s resulted in a new proposal for a scheme that had more than double the capacity of the 1938 scheme. The Kiewa Hydroelectric Scheme became the largest scheme of its kind in the State Of Victoria and the second largest scheme in Australia. The number of personnel involved in the planning and construction of the scheme increased dramatically. During the late 1940’s, most activity centered around the construction of the West Kiewa Power Station, Rocky Valley Reservoir, McKay Creek Power Station and the Bogong Creek Aqueduct.A common thread across all the larger hydro scheme constructions was the need for workers, both qualified and unqualified who came from around the world seeking a new life for themselves and their families. New accommodation and facilities were required for the army of workers engaged in construction in often remote and wild areas. The SEC had a high demand for timber, and set up the first of a number of sawmills at Bogong Creek in 1939 and set up the first hardwood logging in the headwaters of the Kiewa River. These new ‘towns’ such as Mt Beauty and Bogong, survived, serving the needs of operational personnel and their families, and expanding with growth of new industries. Mount Beauty, and to a lesser extent Bogong, are among these places. Large A3 size spiral bound display folder containing photocopied black and white photographs of various aspects of the early days of the Kiewa Valley Hydro-electric scheme including equipment, various work sites and photographs of workers and their families. 1-Breakdown in Circuit Breaker (Isolating Contacts) 2-Big Hill Bench- Site of No 5 Devlopment 3-No 1 Power Station 4-No 1 Pipeline, Anchor No 8 5-Push Dozing-RD8 Tractor 6- Tractor and driver at work 7- Workmen in unnamed tunnel 8- Front page of Journal of SECV Vol 15. Photograph of No 1 pipeline viewed from McKay Portal 9-Rocky Valley Dam Core Wall 10-Workmen working inside tunnel loading rocks into a rail truck. 1-Breakdown in (generator) Circuit Breaker (Isolating Contacts) Handwritten underneath (This is not a picture of any part of a generator. It is a circuit breaker Signed Ron White Ron was the Principal Hydro Engineer of the SEC Kiewa Scheme Page number 39 2-Big Hill Bench – Site of No. 5 Development (abandoned) Page number 40 3-No 1 Power Station Page number 41 4-No. 1 Pipeline, Anchor No. 8 Page number 42 5-Push Dozing – RD8 Tractor, 12 cubic yard Carryall and FD Cletrac Tractor Page number 43 6-No marking Page number 44 7-No marking Page number 45 8-Journal of State Electricity Commission of Victoria SEC Vol 15 No… April-May, 19… No 1 Pipeline-A view from McKay Portal G Hempenstall and D Sutton stiffening pipe section for transport during construction (….indicates missing text) Page Number 46 9-Rocky Valley Dam Core Wall Page number 47 10-No markings Page number 48 secv; kiewa hydro electric scheme; construction area; power stations; reservoirs; aqueduct; mt beauty; bogong

Used in pre-circuit breaker domestic electric fuse boxes8 amp (light) and 15 amp (power) tinned copper wire wound onto cardboard holder, printed in red and blue "Hang on your fuse box", "Use one strand only", "Made in Australia", "Best tinned copper wire"fuse wire, electricity

Item used to contain the compressor fuse on tram 14, salvaged during the project to renew the wiring of the tram. The box was located alongside the circuit breaker at No. 2 end of the tram. Demonstrates an item fitted to a tramcar to contain a renewable fuse.Wooden box containing a fuse, fuse holder and short sections of associated wire. The fuse holder is secured to the base of the box with brass screws. The box has a cover secured with a brass screw. There are two pieces of wire secured on the ceramic fuse holder, one of which the insulation has deteriorated and fallen off. The other wire has its cloth covered rubber insulation remaining in position. The outside of the box has been painted with the SEC tram green paint. fuse, tram 14, tramcars, tramcar maintenance

Possibly made by local SEC Staff for the refurbished Ballarat Tram depot during the mid 1930's. Note the spelling of Depot with the accent.Demonstrates and provides information to Depot workers and Fire Fighters that the power had to be turned off to the Trolley Wire inside the depot using an emergency circuit breaker and where this equipment was provided before using a fire hose.Set of two wooden signs, with chamfered edges, red background with white painted letters, advising SEC Ballarat Depot workers or Firefighters that the power had to be cut to the Trolley Wire prior to using a fire hose in the depot building. An emergency button was provided in a circuit breaker box for this purpose. Rear has been primed with a pink primer. .1 - complete sign .2 - bottom section broken offtramways, ballarat, signs, emergencies, tramway power, fire fighting, safety

This protection relay apparatus (a large electrical fuse), which permits the easy monitoring and disconnection of faulty electrical apparatus connected to the large SEC Victoria Hydro Scheme's electrical power producing generators. These generators are powered by the hydro force of "stored" water at a higher altitude. The establishment of both the NSW and Victorian Hydro Schemes was achieved from the early 1900's to the 1960's. At this point in time the need for additional power sources to quench both an industrial and domestic demand for electricity was purely an economic and not and environmental (carbon reduction) factor. This hydro scheme was instigated by "the Government of the day" as a bold move and was the major force of the World War II refugee and "technical" workforce inclusion of skilled and unskilled migration into the Australian environment. Although this mass "invasion" of workers with families was thought of in some circles as intrusive, the expansion of population post war years and its integration into the Australian rural sector, produced the multi- lingual multi-cultural diversity of later years.This protection relay is very significant to the Kiewa Valley as its use was introduced during the Kiewa Hydro Scheme. Although only a small apparatus it was part of the explosion of human resources into the valley. This influx of population transformed the region from that of a basically quiet rural region to one which evolved into both an industrial and a larger residential community. This evolution in the valley created a change, not only in the "physical" landscape but also the socio-economic expansion which permitted other "tourist" based industries into the valley.This protection relay unit has a black painted metal shell with four copper enclosed "prongs" fastened to the rear of the housing(from a bake-lite plate) . Between these "prongs" are four "empty" points allowing additional "screw on" bases. The front glass enclosed meter and recorder allows for the identification and automatic disconnection of any faulty equipment connected to the main power generator. This equipment acts similarly to a modern day circuit breaker found on the electrical circuit boards of residential homes.On the top section of the front panel "ASEA" to the left "Made in Sweden" and to the right "Frabrique en Suede" below this "RIS" below this a graph and next to it two columns of numbers and a pointer for each setkiewa hydro electricity scheme, victorian state electricity commission, relays, generators

Has a strong association with the Geelong tramway system, yields information about the sealing or securing equipment from interference and demonstrates the type of equipment used. Exact use not known - could have been used for multiple purposes.Nickel plated steel sealing punch - with base unit, spring, handles, pins and punch or press that was used to seal or secure lead seals either on power meters, ticket boxes or circuit breakers. Placed letters "M.E.S. Co Ltd" onto the lead seal along with numbers "1". On outside of handle "PAT. 9682 1902" and in inside ".1" - the number of the press? Knowledge of manufacturer unknown - possibly the UK. Could research the Patent numbers - a quick search at the time failed to show something.trams, tramways, sealing, mesco, seals

Westinghouse part catalogue B6008 for the "Parts of Westinghouse Canopy Switch for Tramway Equipments" - used for Westinghouse T1F controllers - style Nos. 5437 and 5409, manufactured by Westinghouse Electric & Manufacturing Co. of London and Manchester. Dated Oct. 1906. Lists parts with images and prices. It was used to turn on or off the power to a tram. It is not a circuit breaker of the type that are fitted to the Museum's trams.Yields information about the Westinghouse UK products.Manual or document 8 printed pages centre stapled within card covers.tramways, tramcars, equipment, westinghouse, switches

Folder - blue covers, foldback clips containing technical information on Metropolitan Vickers, "Cam Operated Contact Type Tramcar Controllers" dated July 1936, and given number Q.69975. Gives a general description of the equipment, sizes available, types, small and large controllers, enclosures, regenerative controllers, circuit breakers, notching regulator, air brake attachment and line switch attachment, along photographs of the equipment, construction specifications, for the OK38B. Also includes outline drawings. Folder includes four folder blueprints of wiring diagrams - note these have not be scanned."Spare / 102" on front cover in ink and date stamp "2 July 1936" on many of the documents.trams, tramways, controllers, metropolitan vickers, tramcars

The Ballarat School of Mines trained electricians.Correspondence on State Electricity Commission of Victoria letterhead between the State Electricity Commission of Victoria to Ballarat School of Mines in 1937. .1) Dated 16/01/1937 this item relates to the licensing of Electrical Mechanics Regulations 1935 and is signed by W.J. Price .2) Dated 24/08/1937 this item relates to the practical portion of examination 37/2 in connection with Licensing of Electrical Mechanics at Ballarat on 23 September 1937 and is signed by W.J. Price .3) Dates 18 October 1937 this three page foolscap letter relates to radio interference suppressors, and the increasing us of earth leakage circuit breakers for the protection of installations, and is signed by D. Dunhamstate electricity commission of victoria, ballarat school of mines, electricity, trades, electricians, w.j. price, d. dunham, sec

Set of 21 Digital Images of the recommencement or reopening of tram services following the reconstruction of the power supply and substation on 26/12/2004. .1 - Sign announcing free rides today in the front of No. 27 .2 - Peter Winspur and Garry Wood showing Peter the process for turning the power on .3 - ditto .4 - closing the Circuit Breaker .5 - 27 runs across Wendouree Parade .6 - 27 leaves the depot .7 - Peter Winspur removes the sign on the pole saying we were not running .8 - 27 in Wendouree Parade .9 - Carolyn Cleak removing a sign .10 - Placing signs and turning the pole at Carlton St .11 - Carlton St and waiting passengers .12 - Pole sign and bicycle warning sign re tram tracks .13 - Sam Boon and band at Gardens Loop .14 - ditto .15 - ditto .16 - Happy passengers .17 - Richard Gilbert - reopening speech. .18 - No. 26 and happy passengers .19 - 27 and 26 at the loop .20 - No. 26 at the loop, with passengers and the band. .21 - as for 19trams, tramways, btm, substation, wendouree parade, reopening, carlton st, gardens loop, tram 27, tram 26

Document retyped from possibly an SECV training document titled "Safety First" outlining tram driving safety practices, awareness for motormen, electrical aspects, tram circuits, line breakers, insulated trams, trolley poles, light bulbs, broken trolley wires and fallen wires around trams. Section 2 - "instructions to be Observed by members and workers working on track maintenance". Possibly prepared for use by the BTPS, c1974.Demonstrates a Safety document for use by tramway crews and workers.Document - typed 6 Quarto pages - original.tramways, tramcars, operations, passenger services, ballarat, training

.1 - Book - 56 pages + grey covers, side stapled, issued by the British Engineering Standards Committee "Electrical Machinery excluding motors for traction purposes", No. 72-1917, September 1917. Has "Commonwealth Engineer" label along the bottom edge. .2 - Book 28 pages - light grey covers, side stapled, issued by the British Engineering Standards Association, "Insulating oils for use in Transformers, oil switches and circuit breakers" No. 148-1923, April 1923. Has a Tait Book Co. stamp along the bottom edge and ESCo date stamp 1 Oct. 1925. Printed by Gaylard & Sons London. .3 - Book 72 pages - light grey covers, side stapled, issued by the British Engineering Standards Association, "Tungsten Filament Electric Lamps" No. 161-1925, August 1927. Has a Tait Book Co. stamp along the bottom edge and ESCo date stamp 15 Feb. 1928. Printed by Waterlow & Sons London. .4 - Book 48 pages - light grey covers, side stapled, issued by the British Standards Institution, "Metal Sheathed paper insulated plain annealed copper conductors for electricity supply including voltage tests" No.1 48-1933, March 1933. Has a Tait Book Co. stamp along the bottom edge and ESCo date stamp 15 Feb. 1928. Printed by Waterlow & Sons London. trams, tramways, power station, standards, materials, electrical systems

.1 - Book - 20 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Air-break knife switches and laminated brush switches for voltages not exceeding 660Volts" - C23 - 1926, August 1926" .2 - Book - 24 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Flame proof air break switches for Voltages Not Exceeding 600Volts", C25-1926, October 1926. .3 - Book - 24 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Flame proof air break circuit breakers for Voltages Not Exceeding 600Volts", C26-1926, October 1926. .4 - Book - 24 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Totally Enclosed air-break Circuit Breakers for Voltages not exceeding 660 Volts" - C27 - 1926, September 1926. .5 - Book - 24 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Totally Enclosed air-break Switches for Voltages not exceeding 660 Volts" - C28 - 1926, December 1926. .6 - Book - 24 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard "Metallic Resistance Materials for Electrical Purposes" - C29-1926, November 1926. .7 - Book - 28 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Face Plate controllers and resistances for use therewith Electric Motors (DC and AC Slip ring)" - C31-1926 - December 1926. .8 - Book - 28 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Australian Standard "Contactor Controllers and Resistances for use therewith Electric Motors (DC and AC Slip ring)" - C32-1926 - December 1926. .9 Book - 36 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Electrical Performance of Industrial Electric Motors and Generators with class A insulation" - C34-1927, October 1927 with a green label dated September 1932 advised that the tentative standard has been endorsed as a Standard with amendment. .10 - Book - 56 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Electrical Performance of Large Electric Generators and Motors - Rating permitting overloads" - C35-1927, April 1927 with a green label dated September 1932 advised that the tentative standard has been endorsed as a Standard with amendment. On top right hand corner has the date stamp of the "The Electric Supply Co. of Victoria Ltd Ballarat" trams, tramways, power station, standards, materials, electrical systems

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

The Optacon OPtical-to-TActile-CONverter is a compact, portable reading aid for the blind. It is about the size of a textbook, and weighs less than 2kg. It works by converting a printed image into a tactile image that a blind person can feel with one finger. After a period of training and practice, a blind person can use the Optacon to read ordinary books, magazines, newspapers, and other printed materials. The Optacon was developed after intensive research at Standford University, California, USA and was trialed by clients of the Royal Victorian Institute for the Blind (now part of Vision Australia) in 1973. It has three main sections: 1 a miniature camera, 2 an electronics section, and 3 a tactile stimulator array. The miniature camera, about the size of a pocket knife, is mounted in a housing that has rollers for easy movement along a line of print. The camera is connected to the electronics section by a lightweight cable. The electronics section and the tactile stimulator array are in the main chassis. The array consists of 144 tiny metal rods arranged in six vertical columns and 24 horizontal rows. Each of the rods can vibrate independently. The tips of these rods protrude through holes in a concave finger plate where the index finger is placed flat in order to read. These three components act together to convert the image of a printed letter or other shape into a pattern of vibrating rods, a tactile image of the letter or shape. The letter shape is tactually perceived as an image that moves from right to left on the finger, showing the left or leading edge of the letter first. Letters are felt sequentially rather than all at once, and the image should be kept moving. The Optacon converts a printed O into a tactile form that resembles a crater with a vibrating rim -- a completed circle. C would have a gap or opening on the right side of the curve. The letter F would be felt, sequentially, as a vertical line with two trailing horizontal lines. Because it can convert any ordinary printed image into a corresponding tactile image, the Optacon is not restricted to any special typestyle or language. The camera has a zoom lens that compensates for differences in the size of type. The standard Optacon lens can accommodate type sizes from 6 point to 20 point. With the optional F4A magnifier lens, type sizes as small as 4 point can be read. Powered by a rechargeable battery, and comes with its own battery charger. The battery is contained within the main chassis, and is not removable by the user. There are four basic controls on the Optacon: the Magnification Adjustment zoom button located on the camera section on the side opposite the rollers; and the On-Off switch, the Stimulator Intensity Adjustment knob, and the Threshold Adjustment knob located on the right side of the front panel. The Circuit Breaker protrudes from the right-hand wall inside the chassis compartment. From left to right when the back panel is facing you, are located: the jack for connecting the battery charger; the Battery Check button; the Normal-Invert switch; and the Input/Output I/O connector for use with the Visual Display, when using the Repeater Cable to connect two Optacons to one another or with other accessories. Designed not be removed from the leather case during normal operation, the On-Off switch is a slide switch located on the right side of the front panel. It slides up and snaps into place in the on position. 1 black with orange front, rectangular device in leather case assistive devices, audio equipment

Photocopy of 54 data sheets published by Westinghouse Electric & Manufacturing Company of East Pittsburgh Pa, USA c1920. Consists of plastic cover, header page with Westinghouse logo, contents sheets (2 pages), forward, 67 pages (single side photocopy) and heavy rear card cover bound with a green comb binder. Original material lent by Craig Tooke of the Melbourne Tramcar Preservation Association at Haddon. Photocopied by Warren Doubleday March 2000. List of contents produced 30/6/2000 and then bound. Contains data sheets regarding motors, commutators, brushes, armatures, bearings, field coils, pinions, lubrication, air piping, axle collars, resistance grids, gear cases and other technical information. Westinghouse Railway Operating Data 30/6/2000 List of Contents Page No. Care and repair of commutators 1 Undercutting commutators 2 Railway Motor carbon brushes 3 Brush holders 4 Flashing of railway motors 5 Soldering railway armatures 6 Armature Winding 7 Banding armatures 8 Railway Motor Bearings 9 Lubrication of railway motor bearings 10 How to babbitt motor bearings 11 Oil, grease and waster for motors and gears 12 Saturation of motor bearing waste 13 Testing Polarity of Field Coils 14 Charging of storage batteries on Interurban & street rail cars 15 Precautions to be taken with blower installations on motor cars 16 Putting on Railway Motor Pinions 17 How to take armatures out of box frame motors 18 Dipping and Baking of Railway Motors 19 War time dipping and baking outfits 20 Dipping and baking railway motors will decrease troubles 21 Protection of Motor Bearings from Dust 25 Winter Operation of Railway Motor equipments 26 Installation of Air piping to prevent freezing 27 Maintenance of Traction Brake Equipment 28 Maintenance of controller fingers and contacts 29 Hand operated circuit breakers 30 Railway Motor Testing I 31 Railway Motor Testing II 33 Railway Motor Testing III 35 Railway Motor Testing IV 36 Railway Motor Testing V 37 Removing and replacing railway motor armature shaft 39 Mounting and Maintenance of car resistors 40 Lubrication of control apparatus 41 Maintenance of fuse boxes for railway service 42 Does it pay to dip and bake armatures 43 Dipping and Baking as a financial asset 44 Shop Organisation 45 Tinning Malleable Iron Bearing shells 46 Life of armature bearings or railway motors 47 The assembly of complete sets of commutator segments 48 Electric welding as a factor in reclamation 50 Metal to Metal press, shrink and clamping fit allowances 52 Life of railway motor carbon brushes 54 General information of grid resistance design for the operating man 56 Stopping a car by braking with the motors 57 Railway Motor shafts and their maintenance 58 Axle collars 59 Gear cases 60 Ventilated railway motors 62 Revamping Loose armature bearings 64 Life of axle bearings of railway motors 65 Heat-treated bolts for railway service 66 Document imaged over 7 parts 7-9-2016 - see hi res files. trams, tramways, westinghouse, motors, data sheets, technical information

File containing correspondence between the MMTB Chief Engineer Mr. Strickland and various companies, including Railless Ltd, Australian General Electric, English Electric / Dick Kerr and its UK consultants Heap and Digby (H&D) between the period August 1922 and August 1936. Includes drawings, technical specifications, some of which are duplicated in the Reg Item 535 file. For a listing of the contents of this file and of Reg Item 535, see Related Documents - htd535-536list.pdf Item 536 - Trolley Buses Listed from top of file, in order found. Letters generally to/from MMTB Chief Engineer. Date Type Notes 7/8/1936 Letter from TE Barnes – re Bremen Germany Steam Omnibus. Three pages. On foolscap paper – rest quarto. Has been damaged. 3/2/1926 Letter from Bruce Henderson re transport in the Glen Eira Rd area – poor private bus. 25/10/1925 Letter to G. Higgins, regarding a paper he had presented and printed in Australian Municipal Journal about transport around Melbourne, predicted the demise of trams, trains. Notes Spencer St bridge. Copy of paper is pinned with letters. 28/819/22 Copy of letter to H&D from AEC (see above) Includes the Mexborough test gradient drawing. Undated Pamphlet from Railless Limited about Birmingham’s new trolley buses. 16/3/1923 Extract from Electric Railway and Tramway Journal – wages of trolleybus drivers not getting paid extra in Bradford. Two copies pinned together. 9/4/1923 Letter from H&D re pamphlet exchange You should have had it! 23/2/1923 Letter to H&D asking for information. Has a note re the Board’s attitude towards motor buses. 28/8/1922 to 24/23 Series of letters pinned together with L. de Koenneritz regard trolley buses and Paris. Noted that the MMTB did not have the legislative power to run trolley buses. 15/2/1922 to 10/4/23 Series of letters pinned together with the Aust. GE regarding trolley buses and references to their operation in journals. 10/1/1923 Letter from H&D re request for information on driving gear of Railless Ltd. vehicles 23/2/1923 Letter to H&D re above. 23/2/1923 Sheet of paper on “Steads Review” paper – pamphlet not yet to hand. 8/11/1922 to 10/1/1923 Series of letters with H&D pinned together asking for Railless driving gear – reluctant to provide. 26/9/1922 Letter from H&D, with copy of letter from English Electric enclosing materials regarding Trolley Bus equipment. Note much of this material is the same as that in Reg Item 535 contained within the green cloth tape. Performance curves for DK 26B motor Blueprint – 4449 – outline of controller DK, Type D, form B. Specification for DK 26B trolley motor. Blueprint – drawing 2810 – DK 26 Motor Blueprint – No. 1312D – controller diagram Pamphlet – EE – tramcar Type D automatic circuit Breakers. Publication No. 230, dated 9/1920. Ditto, Form A, drawings No 3565, 1/1/19. Performance curves for DK85A motor Blueprint – P2002M034 – DK85 Motor. EE specification for Traction Motor DK85 Modified from a tram motor. Blueprint – EE drawing – P2002M036 – DK85 motor with ball bearings. EE blueprint P2102F021, traction control wiring for form D controller. EE blueprint P2103F033 – outline of controller type SE1, form C and D. EE blueprint P2102Z011 – wiring diagram for type SE1 form controller. EE blueprint – P2102F025 – diagram of connections (wiring) for Type SE1, form D controller.trams, tramways, trolley buses, melbourne, mmtb, aec, heap and digby, english electric, railless, dick kerr, general electric