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Publication of GB188901007ApublicationCriticalpatent/GB188901007A/en
C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
C01D3/00—Halides of sodium, potassium or alkali metals in general
C01D3/04—Chlorides
C01D3/06—Preparation by working up brines; seawater or spent lyes
B—PERFORMING OPERATIONS; TRANSPORTING
B61—RAILWAYS
B61C—LOCOMOTIVES; MOTOR RAILCARS
B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
B61C15/08—Preventing wheel slippage
B61C15/10—Preventing wheel slippage by depositing sand or like friction increasing materials
B61C15/105—Preventing wheel slippage by depositing sand or like friction increasing materials with gravity activated sanding equipment