Wooden separators

Mica splittings are processed from lower quaUty blocks and from sheets too thin for blocks and unsatisfactory for producing film. The splittings are packed for sale in three ways book form, which are laminae spHt to the desired thickness from the same book of mica, then dusted with mica dust, and restacked in book form pan packed, in which splitting layers are placed evenly in a pan, and each layer separated by a thin sheet of paper then pressed together and loose packed, in which splittings are si2ed with screens then padded loosely in a wooden box for shipment. 

Tlie indi ddual cells are assembled into batteries after a leakage test to check for faulty welding joints in steel containers or cracks and improper seals in the plastic encased cells. Cells that are to be delivered without electroltye are emptied after the fomiation cycles. Tlie steel-cased cells hav e to be separated by mechanical means to prevent intercell shorts and are often assembled into wooden crates. Tlie cells in plastic cases can be cemented together or strapped with tape. 

During the first trials with synthetic separators around 1940 it had already been observed that some of the desired battery characteristics were affected detrimentally. The cold crank performance decreased and there was a tendency towards increased sulfation and thus shorter battery life. In extended test series, these effects could be traced back to the complete lack of wooden lignin, which had leached from the wooden veneer and interacted with the crystallization process at the negative electrode. By a dedicated addition of lignin sulfonates — so called organic expanders -— to the negative mass, not only were these disadvantages removed, but an improvement in performance was even achieved. 

Grind the chlorate separately in a clean, nonsparking (glass or wooden) bowl with a wooden pestle. The resulting granules should approximate those of ordinary table sugar. 

FIGURE 13.5 Analysis of tracking components, a) A chairlift, (b) The track wheel was used to separate a human track into a person s olfactory footprint and odors emanating from crushed soil and vegetation. The track wheel has wooden footpads on a metal rim, spaced at an average human stride. The wheel produces a track that lacks human scent and consists entirely of odors from disturbed soil and vegetation. (From Most and Bruckner, 1936.)... 

Now make a little fire for four hours. This must chase away all the humidity from the mercury and vitriol. After complete evaporation of the wetness, stoke the fire so that the white and pure matter of the mercury becomes separated from all its impurities this operation requires another four hours. You will know when sufficient time has elapsed by introducing a wooden rod into the sublimating vessel. Lower this into the upper aperture and down into the matter itself, ascertaining whether the mercurial white matter is ready to blend together.. . . ... 

Packing, Grenades should be packed separately from bouchens and firing mechanism, each in a separate wooden box or in a separate compartment of the same box. The exception is in the case of grenades loaded with EC Blank Fite Powder which can be packed with firing mechaoism assembled... 

Mixing proceeds in the following way The ingredients, milled separately or in binary form, are weighed out into wooden boxes or barrels fitted with grips, and following the addition of ca. 8% of water (10% on hot and dry summer days) they are mixed by hand with a wooden paddle. The damp material is spread evenly over the tray of the runner. The layer of the material should not be less than 1 cm thick. 

The neck or cap is now removed by supporting the cylinder on a chevalot or wooden rest, and turning the upper part two or three times in the curve of a bent iron heated to redness, as shown in Ffg, 163 a drop of water allowed to fell on the heated line produces fracture and separation of the cap,. Or, tho samo may bo done by wrapping round the end of tho cylinder a thread of hot glass, removing tjie thread, and applying a piece of cold iron to any part which the thread covered. 

When the epidermis is sufficiently softened it is detached, together with the hair on the beam. This is an arched wooden or stone bench—Fig, 347—upon which the hido is laid, with tho flesh side inwards, and (lie hair removed by die scraping knife, shown in Fig. 348. After tho separation of the hair and epi-... 

Wakbukton s method of effecting the purification of rape oil is by treatment with caustic alkali, ia which, the albuminous and other impurities are soluble, and are. separated, associated with soapy matters. In a suitable vessel, containing fifty-two parts of. caustic soda solution, of specific gravity 1-010, are to be put one hundred pounds of the refined oil those are to be stirred with a wooden ladle till well mixed. The mixture is then allowed to stand twenty-four hours undisturbed, in a cold place, after which it is then slowly warmed, and again well stirred. After twenty-four hours subsidence all the oil will have separated if such should not bo entirely the case, the complete separation may be effected by the addition of a small quantity of spirit of wine. The oil drawn off from the liquor is afterwards well washed with hot water, till the pure oil is obtained without taste or color, and if desired, may be passed through a filter. The soap which deposits may be used as an ordinary detergent... 

---