DE185527C - - Google Patents

Info

Publication number

DE185527C

DE185527C DENDAT185527D DE185527DA DE185527C DE 185527 C DE185527 C DE 185527C DE NDAT185527 D DENDAT185527 D DE NDAT185527D DE 185527D A DE185527D A DE 185527DA DE 185527 C DE185527 C DE 185527C

Authority

DE

Germany

Prior art keywords

coal

ring

rings

carbon

contact pieces

Prior art date

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Active

Links

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• 239000003245 coal Substances 0.000 claims description 25
• OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
• 229910052799 carbon Inorganic materials 0.000 claims description 10
• 229920001875 Ebonite Polymers 0.000 description 2
• 239000003610 charcoal Substances 0.000 description 2
• 238000009413 insulation Methods 0.000 description 2
• 241000156961 Coenonympha Species 0.000 description 1
• RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
• BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
• 239000011324 bead Substances 0.000 description 1
• 229910052802 copper Inorganic materials 0.000 description 1
• 239000010949 copper Substances 0.000 description 1
• 239000011521 glass Substances 0.000 description 1
• 239000011810 insulating material Substances 0.000 description 1
• 239000002184 metal Substances 0.000 description 1
• 229910052751 metal Inorganic materials 0.000 description 1
• 239000010445 mica Substances 0.000 description 1
• 229910052618 mica group Inorganic materials 0.000 description 1
• 229910052573 porcelain Inorganic materials 0.000 description 1
• 229910052709 silver Inorganic materials 0.000 description 1
• 239000004332 silver Substances 0.000 description 1