Tablet engravings

This workbook is a guided tour through the steps of the Emerald Formula. There are alchemical mandalas and symbolic drawings actually used by the alchemists to illustrate the principles of the Emerald Tablet, as well as interpretations and guided meditations to accompany them. Most engravings have never before been published to a wide audience and date back over five hundred years others have been restored with symbolic colors to convey their archetypal content. [By D.W. Hauck ]... 

Lead ores are widely distributed in Nature, and are easily smelted. The Babylonians too engraved inscriptions on thin plates of metallic lead (10). The Romans used it extensively for water pipes, writing tablets, and coins. Unfortunately, they also used it for cooking utensils, and lead poisoning was an all-too-frequent result. A few very small lead nuggets, some of which are believed to be of pre-Columbian origin, have been found in Peru, Yucatan, and Guatemala (41). 

Manufacture by Direct Compression All the components were mixed for 10 min, passed through an 0.8-mm sieve, and compressed into tablets on a rotary press with a rate of 40,000 tablets/h at a compression force of 15-kN. Core shape was convex with a diameter of 9 mm and the engraving BASF. Hardness of the tablets was about 60 N. 

The compound cup profile could be used to provide round or oval tablets. This profile provides a good tablet weight per volume but simultaneously presents a weak cup edge, thus being the weakest of all cup configurations. Because of this, the maximum compression force is limited to the minor cup radius on the round shapes and the minor cup radius on the minor side for the oval shapes. In addition, the available engraving area is limited to the blending point of the two radii. 

When considering applying a bisect to a tablet s surface, careful attention should be taken with respect to the tablet s cup depth, band thickness, and hardness. Considering these aspects, the specifications for the bisect size are determined taking into account the tablet s size, engraving or printing, and desired bisect design. 

Waimer, F. Krumme, M. Danz, P. Tenter, U. Schmidt, P.C. The influence of engravings on the sticking of tablets. Investigations with an instrumented upper punch. Pharm. Dev. Technol. 1999, 4 (3), 369-375. 

Change in the engraving, relief or other markings (except grooves) on the tablets or capsules. Conditions to be met the new marking should not cause confusion between tablets or capsules. 

The design and execution of engravings on punches require considerable knowhow and skill. While most capping problems, i.e. the separation of a thin layer of the tablet from the main body of the compact during or after unloading and... 

Fig. 6.2 -43 An assortment of engraved punches (courtesy Kilian, Koln, Germany) Fig. 6.2 -44 Tablets with. .capping" and sketch explaining the capping phenomenon [B.48]...

This is the same exhortation as found engraved on copper tablets in the manuscript of Samuel Baruch Samuel Baruch writes that the ultimate achievement is ... 

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