DE90042A - - Google Patents

Info

Publication number

DE90042A

DE90042A DE90042A DE 90042 A DE90042 A DE 90042A DE 90042 A DE90042 A DE 90042A

Authority

DE

Germany

Prior art keywords

grinding

pumice stone

grinding wheel

wheel

lever

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.)

Pending

Links

• Espacenet
• Global Dossier
• DPMA
• Discuss

• 239000004575 stone Substances 0.000 claims description 31
• 239000008262 pumice Substances 0.000 claims description 26
• 239000010985 leather Substances 0.000 claims description 6
• 239000004744 fabric Substances 0.000 claims description 3
• 239000011230 binding agent Substances 0.000 claims description 2
• 239000004568 cement Substances 0.000 claims 1
• 239000010440 gypsum Substances 0.000 claims 1
• 229910052602 gypsum Inorganic materials 0.000 claims 1
• 238000007788 roughening Methods 0.000 claims 1
• 239000000428 dust Substances 0.000 description 3
• 239000000463 material Substances 0.000 description 3
• 230000033001 locomotion Effects 0.000 description 2
• 238000000034 method Methods 0.000 description 2
• 241001275954 Cortinarius caperatus Species 0.000 description 1
• 241000272476 Gyps Species 0.000 description 1
• 230000005540 biological transmission Effects 0.000 description 1
• 239000002775 capsule Substances 0.000 description 1
• 150000001875 compounds Chemical class 0.000 description 1
• 230000007812 deficiency Effects 0.000 description 1
• 238000004519 manufacturing process Methods 0.000 description 1
• 238000003825 pressing Methods 0.000 description 1
• 230000001105 regulatory effect Effects 0.000 description 1