US1411518A - robertson - Google Patents

robertson Download PDF

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Publication number
US1411518A
US1411518A US1411518DA US1411518A US 1411518 A US1411518 A US 1411518A US 1411518D A US1411518D A US 1411518DA US 1411518 A US1411518 A US 1411518A
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United States
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robertson
application filed
filed apr
paper lift
apr
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
    • C22B26/10—Obtaining alkali metals

Description

A. w. MBERTSON..v
PAPER LIFT.
APPLICATION FILED APR-22, 1921.
A. W. ROBERTSON.
PAPER LIFT.
APPLICATION FILED APR.22. 192|.
Patented Apr. 4, 1922.
3 SHEETS-SHEET 2.
/4 I II-
US1411518D robertson Expired - Lifetime US1411518A (en)

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US1411518A true US1411518A (en) 1922-04-04

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US1411518D Expired - Lifetime US1411518A (en) robertson

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4001031A (en) * 1973-11-16 1977-01-04 Chem-Trol Pollution Services, Inc. Process for making low alkali cement clinker
US4162922A (en) * 1975-05-27 1979-07-31 Klockner-Humboldt-Deutz Aktiengesellschaft Method and apparatus for the lowering of the alkali content of cement calcined to completion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4001031A (en) * 1973-11-16 1977-01-04 Chem-Trol Pollution Services, Inc. Process for making low alkali cement clinker
US4162922A (en) * 1975-05-27 1979-07-31 Klockner-Humboldt-Deutz Aktiengesellschaft Method and apparatus for the lowering of the alkali content of cement calcined to completion

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