102 No. 13 PATENTLISTE I>KR „ELEKTROTECHNISCHEN RUNDSCHAU.‘ No. 11134. Thwing & Wiborg. Rail bonds for electric railways. No 11168. Feeny. (Allgemeine Elektrizitäts-Ge sellschaft.) Railway and tramway vehicles driven by electricity. No. 12329. Fox. Electric motors. No. 12466. Siemens Bros & Co. Ld. Apparatus for deriving electrical currents of one direction irom a source of alternating current. No. 12 508. Siemens Bros & Co. Ld. Apparatus for deriving electrical currents of one direeiion from a source of alternating current. No. 12509. Siemens Bros & Co. Ld.‘ Apparatusfor deriving electrical currents of one direction from a source of alternating current. No. 12691. Leve Electric clotb cutting macbines. No. 12 400. Liddle. Trolleys for electric cars. No 12 974. Madden. Apparatus for making secon dary battery plates and plates for other pur- poses. No. 14411. Sander Manufacture of filaments and other conductive bodics for incandescent elec tric lamps and keaters. No. 15 671. Churchward. Dynamo electric gene- rators and motors. No. 15 680. Churchward. Dynamo electric gene- rators and motors. No. 15826. Blood. Armatures for dynamo electric machines or motors. No. 18 437. Förster. Incandescent e'.ectric lamps. No. 18 795. British Thomson Houston Co. Ld. Elec tric lighting by low frequ.-ncy currents No. 13 577. Electrical fuses for high tension. No 19 333. Roardman. Electric arc lamps. No. 19 386. Offord & Jevons. Electric time switches. No. 19 451. Mansbridge. Electrical condensers. No. 19766. Rowlands. Overhead trolley poles used in electrical traction. No. 20177. Batault. Commutator or collector for electrical purposes. No. 20 030. British Thomson-Houston Co. Ld. Alter nating current electric railways. No. 21 100. Hall. Electric Converters or transfor- mers. No. 21804. Claremont. Manufacture of electrical insulating materials. No. 22 287. British Thomson-Honston Co. LI. Syn- chronizing apparatus for electrical alternators. No. 22747 Clark Electro - magnetic brakes for railway and tramway vehides. No. 22748. Clark. Eiectro - magnetic brakes for railway and tramway vehicles. 1901. No. 18879. Connett. Collectors for electric tram- ways and the like. No. 19 079. Lake. Casings for electric arc lamps. No. 19 225. British Thomson Houston Co. Ld. Incan descent electric lamps. No. 19 393. Fomm, Fomm&Fomm. Electric motors. Frankreich. No. 310133 20. 4. Ol. Cruvellier. Systeme de traction electnque. No. 310165. 22. 4. 01 Societe d’Exploitation des brevets Dolter Dispositif destnid ä evaluer directement l’etat d’isolement des plots de contact dansles systemes a prise de courant ä fleur du sol No. 310281. 26. 4. 01. Company franqaise pour l’exploitation des procedes Thomson-Houston. Systeme de traction electrique. No. 310290. 26. 4 01. Jobis. Preneur de courant pour tramways electrique pourons d’un fil de trävail unique. No. 1461. Ducretet. Telegraphie relays. No. 157. Perret. Electric motor. No. 309 566. 17. 4. 01. Millet. Cert. d’add. pour sy.-teme de traction electrique par plots de contact automatiques pour tramways. No. 2854. Wet'er. (Electrizitäts-Aktiengesellschaft vorm. Schuckert u. Co.) Apparatus for star- ting and regulating or Controlling electro- ■motors. No. 11076. Lamm. Means for extingninsking elec tric arc applicable to iighning arresters, switches, and the like. No. 11293. Lake (Tesla). Utilization of electro- magnetic, light, or other like radiations- etfects, or disturbane.es transmited th'ough the natural media and to apparatus therefor. No. 310169. 22. 4. 01. Maifhe. Systeme de trans- mission des courants telegraphiques et tele- pLoniques. No. 310189. 23. 4. 01. Hugltes. Perfectionnements appoites aux transmetteurs telephoniques. No. 310 209. 23. 4. 01. Societe Aktieselskabet Progress. Relais a reglage automatique pour telbgraphes et te ephones. No. 310 221. 2>. 4 01. Perfectionnements aux Systeme de communication te-ephonique.