The Bird Mark 4 is an anaesthesia assistor or controller with pressure and volume controller to be driven by a respirator. Combination of Mark 4 with respirator makes an automatic anaesthesia respirator eliminating manual bagging. The machine can work through Boyle anaesthetic system. It is designed for both paediatric and adult application. (Drugs and Equipment in Anaesthesia Practice, Aruna Parameswari, 2019)Green metal box atop a clear plastic unit with a black bellows inside, which forms one part of the overall unit. The unit is attached to a pole, enabling height adjustment. The pole is, in turn, attached to a set of four castors [not original].White text on black stick on strip on top of metal box: DO NOT PULL APART / FOR USE IN THEATRE ONLY A series of instructions are printed in white text over the unit.anaesthesia assistor, anaesthesia controller, pressure controller, volume controller, paediatric, adult

This is a set of 16 photograph of the Royal Australian Survey Corps’ Johnson Ground Elevation Meter (JGEM) Survey Vehicle taken at the Army Survey Regiment, Fortuna, Bendigo. The JGEM vehicle was extensively used by RA Svy within Australia from the late 1960s. A limited number of Ground Elevation Meter (GEM) station wagon type vehicles were manufactured by General Motors Corporation (GMC) in the USA for the United States Geological Survey, Canada’s mapping agencies, RA Svy and National Mapping (Natmap). The GEM was a four-wheel drive, four-wheel steer vehicle. Four-wheel steering was necessary to avoid systematic errors caused by non-tracking of front and rear wheels on conventionally steered vehicles. The manufacturer substituted the rear axle with a front axle and connected them to form the four-wheel steering mechanism. The two Australian GEM vehicles, referred to as Johnson GEMs (JGEMs) were converted into right-hand drive. After delivery in 1964, acceptance Natmap and RA Svy testing and operator training was undertaken at the Army's School of Military Survey located at Balcombe, Victoria. A small fifth wheel was mounted on a cantilever arm suspension midway between the front and rear wheels on the right side of the vehicle. It was lowered to and raised from its operating position by use of a constant pressure air cylinder. A telescopic bar, suspended between the front and rear axles, provided the reference datum for the angle measurement. The wheel provided the velocity or distance signal through a pulse generator system. A sensitive pendulum mounted on this bar provided the angle measurement for each minute distance traversed. The JGEM contained electromechanical instruments used to determine relative elevations, by trigonometric principles, along a traversed path. These relative elevations were obtained through apparatus which measures the instantaneous angle of inclination of the road and the instantaneous velocity of the meter along such a path. Road routes over which the JGEM operated were planned so that each started and ended as near as practicable to an existing point of known elevation (formally referred to as a level traverse bench mark). The difference in height from the bench mark and the road surface alongside the JGEM’s fifth wheel was measured with a level and staff. Along each route, mapping control photo reference points where new elevation values were required were identified on aerial photographs. Under favourable conditions it was possible to survey as much as 160km in an ordinary working day. The first of RA Svy’s JGEM operations was undertaken in 1:250,000 scale map areas of Queensland. CPL John Hook was the JGEM’s main operator in the early 1970s undertaking operations covering 1:250,000 scale map blocks over northern Victoria and central NSW, each requiring 36 points (9 runs of photography and 4 points across. SPR Lyn Thompson and SPR Bob McDonagh teamed with CPL Hook on some of these JGEM operations. When RA Svy was integrated into the Royal Australian Engineers in 1996, the JGEM vehicle with the Survey Corps collection was donated to its museum. It is believed to be the last of the original manufactured fleet in existence. The JGEM has undergone extensive refurbishment to achieve roadworthiness and is currently housed at The Australian Army Museum of Military Engineering, Hoslworthy Barracks, NSW. It can be viewed by making an appointment with the museum’s curator.This is a set of 16 photograph of the Royal Australian Survey Corps’ Johnson Ground Elevation Meter (JGEM) Survey Vehicle taken at the Army Survey Regiment, Fortuna, Bendigo. The photographs were on 35mm slide film and were scanned at 96 dpi. They are part of the Army Survey Regiment’s Collection. .1) - Photo, colour, c1960s, Johnson Ground Elevation Meter (JGEM) Survey Vehicle .2) - Photo, colour, c1960s, JGEM instrumentation, on-board computer. .3) - Photo, colour, c1960s, JGEM instrumentation. .4) - Photo, colour, c1960s, JGEM instrumentation, on-board computer. .5) - Photo, colour, c1960s, JGEM tyre pressure controller .6) - Photo, colour, c1960s, JGEM rear doors, SGT Geoff Briggs. .7) - Photo, colour, c1960s, JGEM 5th wheel distance/angle measurement device in lowered position, SGT Geoff Briggs. .8) - Photo, colour, c1960s, JGEM 5th wheel distance/angle measurement device in lowered position. .9) & .10) - Photo, colour, c1960s, JGEM tyre pressure system, SGT Geoff Briggs. .11) - Photo, colour, c1960s, JGEM tyre pressure system. SGT Geoff Briggs. .12) - Photo, colour, c1960s, JGEM levelling scope, levelling staff, unidentified technicians. .13) & .14) - Photo, colour, c1960s, JGEM levelling scope, unidentified technician. .15) & .16) - Photo, colour, c1960s, probably survey operation adjusted height plotted on block base sheet. .1P to .16P - Some of the equipment is annotated on the frame of the 35mm slides.royal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, asr, surveying

A black plastic folder containing a set of 38 General Electric Data Sheets for MMTB and tramway trust equipment, dated July 8 1924. Contained in folder with flexible clips. Pages have been punched with four holes. Copy of document made for BTM Feb 1998 by Doug Prosser. For scan of list - see btm780sheet.pdf General Electric Data for Car Equipment Maintenance Contents For scan see btm780d1 (5 pages) Title sheet Data contents summary sheet showing manual prepared for Melbourne & Metropolitan Tramways Board Including Footscray Tramway Trust Hawthorne Tramways Trust Melbourne, Brunswick and Coburg Tramway Trust Prahran and Malvern Tramways Trust. 2 sheets dated July 8, 1924 giving equipment schedules for the various operators, and diagrams. - hard to read the background sheet information. Does not reference the tramcars. For scan see btm780d2 (54 sheets - items 1 to 27) 1. Methods of Removing the Armature from Box Frame Railway Motors Dated 9/1924, 7 pages 2. Instructions for order Magnet Frames for Railways and Mine Haulage Motors 2 pages, not dated 3 Winter Covers for Ventilated Railway Motors - 2 pages 4 Better Commutation for Railway Motors - 1 page 5 Commutator Grooving Machines - 1 page 6 Railway Motor Armature Coils - 2 pages 7 Carbon Brushes for Railway motors - including brush pressure adjustment - 2 pages 8 Renewable Carbon-Way Brush holders for Railway Motors - 2 pages 9 Commutator Grooving Machines (2nd version) - 2 pages 10 The Repair of Railway Motor Commutators - 3 pages 11 Dimensions of Electrical Apparatus used with 600-volv Type PC railway control equipment, (Sheet 15380, dated 2/1/1924) - 1 sheet including · US-13-E Trolley Base, · MS-118-A main switch, · MA-13-F Fuse Box, · MD3 - lightning Arrester, · BJ-386-B Distributing Box, · Type BG Railway Resistors. 12 Connections of Type KM-63-BR Railway Controllers and Equipment - Drawing 15257, 1 page, dated 1/3/1921 with dimension details on rear of type K-63-BR railway controller equipment including: · SG Resister, · BK-13-A Insulator, · MR11 - Circuit breaker, · MD3 - Lightning Arrester box, · K63-BR Controller, · US15C Trolley Base. 13 Method of Supporting Railway Resistors using Porcelain Bolt insulators for 600 and 1500 Volt Work. Drawing dated 1/11/1923, No. 15249B - 1 page 14 Dimensions of Electrical Apparatus used with 600-volv Type M railway control equipment, (Sheet 15381, dated 2/1/1924) - 1 sheet including · US-13-E Trolley Base, · MS-118-A main switch, · MA-13-F Fuse Box, · MD3 - lightning Arrester, · BJ-386-B Distributing Box, · Type BG Railway Resistors. 15 Dimensions of Electrical Apparatus used with 600Volt, Type PC Railway Control Equipment. Drawing No. 15382, dated 2/1/1924. Includes: · C129-A Master Controller, · DA82C Coupler sockets, · MS-14-G switch, · MS-46-H switch. 16 Dimensions of Electrical Apparatus used with 600-volv Type M railway control equipment, (Sheet 15383, dated 2/1/1924) - 1 sheet including · C-169-A Controller · DA-69-B Coupler Socket and DC-66-C Coupler Plug · MS-14-G Switch · MS-46-H-Switch 17 Method of Making Tap Connections for Car Cables -= SD 15468, 1/11/1924, 1 page 18 The Repair of 600 Volt Railway Motor Armatures, 64408, 9/2/1924, 4 pages 19 Proper Method of Mounting and Dismounting Railway Motor Pinions. - 2 pages 20 Pinion Pullers for Railway Motors - 2 pages, dated 8/1/1924. 21 The Care of Railway Motor Bearings - 4 pages 22 Oil Scraper Rings for Air Compressors - 64590 - May 1924 - 1 page 23 Finger Bases for type K 63 controller 1 page 24 Adjustment of Drum Controller fingers - 29/1/1924, 64600A - 1 page 25 Star Wheels for Type K Controllers - 64603 - 1 page 26 Soldering Aluminium Controller Cylinder Castings - 2 pages 27 Porcelain Bolt Insulators for Railway Service - and drawing on rear showing mounting arrangement of resistor Grids - 2 pages. For scan see btm780d3 (13 pages) 28 Connections of Armature and Field Winding for GE-201-F and GE 263A railway motors. DS37869 29 Connections of Armature and Field Winding for GE-201-I railway motors. K1629303 30 Connections of Armature and Field Winding for GE-202 motor, DS 10472 31 Connections of Armature and Field Winding for GE-203 A and GE 226 railway motors. DS23869. 32 Connections of Armature and Field Winding for GE-241 motors - K1629077 33 Connections of Armature and Field Winding for CP25A Air compressor 34 Connections of Armature and Field Winding for CP27A Air compressor 35 Connections of Armature and Field Winding for GE-258 and GE 264 railway motors. K1629343. 36A- Dimensions of Type K-63-BR Railway Controller Equipment 36 US-13-E Trolley Base for Railway Service - 3/1/1923, 64823 - 2 pages 37 Copy of M&MTB (Eastern System) Certificate of Competency as Motorman. 38 Photocopies of a series of four photos of 22E trucks under an SEC tramcar. For scan see btm780d4 (40 pages) 39 Sprague G-E Multiple Unit Control, Type PC, Instruction Book 84772 - Oct. 1922 - 40 Pages. Images of sheets added 2-11-15 trams, tramways, general electric, motors, controllers, trolley pole bases

Yields information about the operation by the Begonia Festival and in particular when 661 was repainted.Set of 8 colour prints of BTPS trams during the 1984 Begonia Festival, just after the repainting of 661 has been completed. Each print has two small copies of the main photo on the right hand side. Printed on Sakuracolor paper. .1 - 661, 27 and 38 at the depot .2 - 661 at St Aidans drive with the parking fee collectors in the view. Interior cab view showing controller, brake handle and pressure gauge. .3 - crossing 14 at the loop. .4 - 661 and 27 at the depot .5 - interior view of No. 14 .6 - interior view of depot with 28 and 26 being rebuilt in the view. .7. - interior view of 661 .8 - interior view of 661 with the tram being swept out. trams, tramways, begonia festival, btm, depot, wendouree parade, tram 661, tram 27, tram 38, tram 14, tram 28, tram 26

Model of a flow controller and distributor system with filter and pressure guage for air or gas? Used for teaching ArboricultureHardi pressure guagearboriculture, teaching, model, flow controller, distributor, filter, pressure guage