6020 Commutators 



Phase meter, theory and use. Teichmiiller, J. 

 Elekttech. Z. 18 (1897) 569-, 581-, 616-, 

 648-, 663-. 



, Trowbridge's, for dynamos. Anon. 

 Elect. Ev. 30 (1892) 351-. 



retardation, visualisation. Wilberforce, 

 L. R. Elect. 20 (1888) 553. 



Production of sine E.M.P. Hanchett, G. T. 



[1899] Sc. Abs. 3 (1900) 64-. 

 Wave form synthesis. Barr, J. M., Beeton, 



S., <& Taylor, C. P. Elect. 35 (1895) 257-, 



286-. 

 . Fleming, J. A. (et alii). Elect. 35 



(1895) 304, etc. 



6020 Apparatus for Starting and 

 Regulating Currents. 



Arc prevention by subdivided break. Wurts, 

 A. J. Sc. Abs. 1 (1898) 487. 



Circuits, broken, Schuckert indicator for. 

 Aliamet, M. Sc. Abs. 1 (1898) 160-. 



, low pressure, grounding. Emmet, W. L. R. 

 [1899] Sc. Abs. 3 (1900) 284-. 



, , protection from high pressure cur- 

 rents. Reed, W. B., & Reed, L. C. [1899] 

 Sc. Abs. 3 (1900) 124. 



COMMUTATORS. 



Jacobi, M. H. Pogg. A. 36 (1835) 366-. 

 Dujardin, . (vi Adds.) Majocchi A. Fis. 



C. 12 (1843) 271-. 

 Glaesener, M. Liege Mm. S. Sc. 2 (1845-46) 



489-. 



Fauconpret, F. de. A. C. 36 (1852) 155-. 

 Dumoncel, T. [A. .] C. B. 36 (1853) 548-. 

 Reuscli, F. E. Pogg. A. 92 (1854) 651-. 

 Hormann, A. A. Ps. C. 127 (1866) 638-. 

 Carl, P. A. Ps. C. 127 (1866) 640- ; Carl 



Bpm. 4 (1868) 342-. 

 Fonseca Benevides, F. da. (rx) Lisb. J. Sc. 



Mth. 4 (1873) 143. 



Crova, A. Par. S. Ps. Se. (1882) 117-. 

 (Kittler switch.) Edelmann, M. T. Lum. 



Elect. 16 (1885) 157-. 

 for batteries. Rollett, A. (xn) Graz I. PI. 



Us. 2 (1871) 194-. 



. Mercadier, E. A. Tel. 3 (1876) 556-. 



board, multiple. Anizan, J. J. Tel. 24 (1900) 



169-, 198-, 239-. 

 , telephonic. Anizan, J. J. Tel. 24 (1900) 



97-. 

 for connecting many elements in series. 



Leconte, F. Brux. S. Sc. A. 18 (1894) 



(Pt. 1) 56-. 

 design. Adams, A. D. [1899] Sc. Abs. 3 



(1900) 279. 

 electromagnetic. Le Goaziou, P. J. Tel. 5 



(1881) 181-. 

 gyrotrope. Pohl, G. F. Kastner Arch. Ntl. 



13 (1828) 49 

 with hermetically closed mercury contact. 



Fischer, K. Lpldina. 24 (1888) 70-. 

 mercury. Giltay, J. W. A. Ps. C. 3 (1878) 



Contact-makers, etc. 6020 



mercury, automatic. Villari, E. (xi) Bologna 



Ac. Sc. Mm. 4 (1873) 463-. 

 , of constant resistance. Jones, J. V. Elect. 



15 (1885) 370-. 

 multiple, of large capacity. Sieur, . A. Te"l. 



20 (1893) 524-. 

 Be's, for primary and secondary batteries. 



Anon. Bv. Sc.-Ind. 27 (1895) 88-. 

 Buhmkorff's, modification. Trusevic, A. A. 



Vars. S. Nt. Tr. (1897) (C. R., Ps. C.) Fasc. 



3, Mem. 7, 4 pp. 

 for telephone exchanges. Mandroux, . A. 



Tel. 18 (1891) 220-, 312-. 

 . Zetzsche, E. J. T61. 15 (1891) 49-, 



73-, 101-. 

 universal. Fick, A. Wiirzb. Ps. Md. Sb. 



(1895) 51-. 



Compensator to maintain^ constant intensity of 

 battery. Wartmann, E. Bb. Un. Arch. 1 

 (1858) 26-. 



Contact apparatus for electric signalling. 

 Schumann, F. Z. Psychol. 17 (1898) 253-. 



maker. Shaw, H. S. H. Nt. 26 (1882) 

 490-, 501. 



. Bedell, , Miller, , <& Wagner, . 



[1893] Nt. 49 (1893-94) 37. 

 for electric clocks. Spellier, L. H. 



Franklin I. J. 121 (1886) 223-. 



, instantaneous. Haralson, J. (jun.) 

 Sc. Abs. 2 (1899) 849. 



, non-oxidising. Schuller, A. Mth. 

 Termt. Eta. 3 (1885) 74- ; Mth. Nt. B. Ung. 

 3 (1884-85) 159-. 



working in hydrogen. Budde, E. A. 



Ps. C. 20 (1883) 167-. 



pressure, effect on current. Treve, (capit.) 

 A. R. S. C. B. 87 (1878) 405. 



vibrator (double contact). T., G. A. Te"l. 

 15 (1888) 313. 



Control of electric cars. Hale, I. Colo. Sc. 



S. P. 4 (1891-93) 294-. 

 Cut-outs, fusible. Glover, B. H. [1899] Sc. 



Abs. 3 (1900) 340. 

 , magnetic. Aliamet, M. [1897] Sc. Abs. 



1 (1898) 160. 

 Discharge key. Jones, J. R. Tel. J. 7 (1879) 



283-. 

 for capacity determinations. Heim, C. 



Elekttech. Z. 11 (1890) 556-. 



, Morse, to obtain reversals with. 

 Heaviside, 0. Tel. J. 3 (1875) 102-. 



Electrepeter. Clarke, E. M. [1836] Stur- 

 geon A. Electr. 1 (1836-37) 65-. 



and electrotome, magnetic. Page, C. G. 

 Silliman J. 35 (1839) 112-. 



Electromagnetic apparatus. Jacobi, M. H. 



Pogg. A. 54 (1841) 335-. 

 Fuses for explosives. Ris, P. C. B. 82 (1876) 



977-. 

 . Scola, , (& Ruggieri, . Par. S. 



Ps. 86. (1886) 188-. 

 , apparatus for testing. Ducretet, E. 



C. E. 102 (1886) 1158-. 

 , sensitiveness. Sebert, . Par. S. 



Ps. 86. (1885) 143-. 



(See Safety fuses.) 



739 



