Newton's lantern slide catalogue: section 2 (circa 1920)

43, Museum Street, London, W.C.l, 97 THE HISTORY AND DEVELOPMENT •L—GENERAL INTEREST SLIDES. 1 25 kw. PouUen arc. 2 Building a 400 ft. mut at Carnarvon. 3 Building a 400 it. mut at Carnarvon showing bunding derrick. 4 400 ft, mut complete—Carnarvon. 5 A large iceberg. 0 Pair of telephones. 7 High frequency alternator—New Brunswick. 6 Marconi wot la-—Chelmsford. 9 Senators Marconi in laboratory. K.—DIAGRAMS, ETC. 1 Mechanical analogy for Herts oscillator with water tank. 2 Evolution of Herts oscillator in Marconi aerial. OF WIRELESS TELEGRAPHY— Continued- 3 Section of telephone receiver. 4 Fleming valve diagram. 5 Microphone circuit and battery. 6 Scale of ether vibrations. 7 Damped and undamped waves. 8 Umbrella “T" and *' L " aerials. 9 Comparison of Carnarvon and ship station wave lengths. L.—PHOTO RADIOGRAMS. I President Coolidge—trans-Atlantic transmission. 1 rTesiaeni i_oonage—irans-Auaniic transn 2 Photoradio transmitter—Ranger system. BEF WIRELESS TELEGRAPHY. (POULSEN SYSTEM,) Wo have been fortunate in securing a number of interesting negatives illustrating the yPoulseu System. Descriptive notes have been written by Mr. C. F. Elwell, who is specially ^qualified to write with knowledge and'authority regarding the development of this system ✓ of long-distance Wireless Telegraphy. |£*' Plain Slides, 2s. each. Typewritten Notes, 4f. 6 d., or can be loaned with the Slides. 1 Prof. Clerk-Maxwell, 2 The Maxwell Theory. 8 Heinrich Hertz. 4 Hertz's apparatus. 6 Gugielmo uaroooL 6 Sir Oliver Lodge. . 7 Map showing stations. 8 Masts in i pineapple field. B Honolulu Station from the sea. 10 „ Anchorage for stays. 11 „ Anchorage. Near View, f 12 Damped and Continuous waves. 13 A Vslve. ,'14 Alternator. ?15 Duddell Singing Arc. I 16 Static Curves. R 17 Duddell Arc. ' IS Dynamic Curve. -, 19 Prof. Duddell. Jp -20 Dr. Valdemar Poulren. >' 2I System of Connection. Tc22 Small sized Paulsen Arc Generator. £23 An Anode. I Cathode Mounting. _ } System of Connection. £26 Steel Tower. $27 ElweD Wooden Tower. tV28 Six Short Wooden Towers. 29 Method of Constructing. 30 Two Short Towers. 81 Stay Wires. 32 Oregon Station. 33 Admiralty Station, Hornsea Island. 34 Seaplane in collision at Hornsea Island. 35 Intenor of Long Distance Station. 36 Tallest Wooden Towers in existence. 37 Base of Tower. 38 Electrical Machines, 39 Magnetic Circuits, 40 Method of Setting. .41 Interior of Arc Transmitter Room. 42 Map showing Stitions. 43 Wireless Army Wagon. <4 „ Near View. 45 Pack Set. 46 „ „ K Trench set. 47 Using a set in the Trenches. The following may be used with extra condensed notes Instead of Nos. 21 and 24. 48 El well PouUen Arc Installation. 49 System of Connection. 50 Small sized Arc Generator. 51 An Anode. 52 Cathode Mounting. 53 Small Arc. 54 Large Arc. ■M ■4 L . WIRELESS TELEGRAPHY. Then Slides nre published by the kind permtBBion of the late Sir W. H. Preeco and Sir Oliver J. Lodge ; and those of the llatconi Bjatem and installations have been .photographed with the kind assistance of the Wireless Telegraph and Signal Company. - Notes on this subject. Nos. 1-28. can be obtained from Messrs. Newton, Beautifully Painted Viewt, It. &d. each. l _ , Portrait/, 10,. each. J «™> «■*«. 2* «*». 13 Complete arrangement of Lodge'* Magnifying ' JT Prof. H. Harts. Portrait with Autograph fi.S-,Standard Hertz Resonator 9 J Prof. Oliver J. Lodge, D.So„ F.R.8., do. Portrait L.4 Byntonlo Leyden Jar Experiment —* Spiral Wire Coherer K /. enclosed In 1 ■7 Extenal view of Lodge'* proposed Syntonio BlgnalUog Btatlon* jJtiLodgos Biogle-point Coherer and Diagram* of 'Coherer Circuit* j-Lodge'* and Muirhead’* improvement* In Byn- tonio Telegraphy, shewing all oonneotian* for a complete station 10 Blr W. H Preece, ..B.. F.R.B., Ac. Portrait ' ~a Of apparatus lor magnetic Induction ... inf principle of Preeca’i system a* adopted by the Past Office > Lodge’* Magnifying Telephone Devloea showing detail of magnet aid microphonia relay 15 Marconi's Short-distance Apparatus 10 Marooni's Receiver and Transmitter 18 Wireless Telegraph Station at the Bouth Foreland Lighthouse 19 The Maruonl Transmitter in the Lighthouse con- nected for telegraphing to Wimerenx 20 The Heoelving Apparatus at the Lighthouse con- nected op 21 Tbe mast carrying the vertical wire at ths Booth Foreland 22 Receiving a menage at the South Foreland 23 Tbe tnutti the Wimereux station [station 24 Reoelring a message from Dover at Wimereux 25 Facsimile and transcription of Dot and Dish- * Message *ent by H.M. the Queen from Dover to Wimereux to the Mavor of Rn'1n<ri«