๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Journal of Franklin Institute

Publisher
Elsevier Science
Year
1954
Tongue
English
Weight
32 KB
Volume
257
Category
Article
ISSN
0016-0032

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โœฆ Synopsis

of Rochester, New York, "For

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## 3(i)6 Potash Ahtm from Feldspor. [Jour. Frank. Inst., material, has to be leached to extract the alum, requiring nmch water, giving weak liquors, and, consequently, wasting much coal in the subsequent concentration. Recognizing these objections, Mr. Spiller proposes cryolite as the source of

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THE FRANKLIN INSTITUTE 369 FIG. 4--Discharge pressure is automatically controlled by balanced forces acting between pressure plunger and adjustable compression soring. Pump zemains in full stroke position until pressure on plunger overcomes spring force and returns the tilting box stud toward the ne