Journal of the American Ceramic Society

doi: 10.1111/j.1151-2916.1922.tb17643.xpmid: N/A

Schramm, Edward

doi: 10.1111/j.1151-2916.1922.tb17644.xpmid: N/A

ABSTRACT The device (shown in the figure) measures the blow required to chip the edge. Results are reproducible to within about 10%, this variation being due to lack of uniformity in the pieces tested. Vitrified china is more resistant to chipping than is semi‐porcelain or European true porcelain.

Cable, Margaret Kelly

doi: 10.1111/j.1151-2916.1922.tb17645.xpmid: N/A

ABSTRACT The development of the Ceramics Department of the University of North Dakota; correlation of research in chemical and experimental laboratories and cultural value of the work; inexhaustible supplies of the state being utilized.

Clark, Wm. M.; Forsyth, J. H.

doi: 10.1111/j.1151-2916.1922.tb17646.xpmid: N/A

ABSTRACT “A glass pot is a wonderful piece of engineering:” It is an expensive article and deserves the most careful treatment. The precautions indicated are; careful packing for shipment in ruin proof box cars, well padded pot carriages equipped with the spring suspensions, storage in a warm, dry room, careful preparation of furnace bench to insure an even distribution of load on the bottom of the pot and to make certain that the pot is level, or tilted slightly forward. Unnecessary jolts often result in damage which only becomes apparent when the pot is heated up.

Spurrier, H.

doi: 10.1111/j.1151-2916.1922.tb17647.xpmid: N/A

ABSTRACT Milling.—A continuous pebble mill of the self‐feeding type is recommended. Segregation due to difference in density is not to be feared. Drying.—Instead of drying completely, wetting down, tempering, aging and grinding the author recommends drying the press cake only down to a water content of 16%, followed immediately by disintegrating and pressing. The pressed ware produced by this shortened procedure is very satisfactory. A Combined Disintegrator and Dryer.—The author suggests the application of a hot blast to the clay as it leaves the mill for the disintegrator thus drying and disintegrating it in one operation. This suggestion has not, however, been tried out.

Bsllamy, H. T.

doi: 10.1111/j.1151-2916.1922.tb17648.xpmid: N/A

ABSTRACT The construction of the furnace is shown in the figure. It is fed from the 3 burners and uses about 24,000 cu. ft. of B.t.u. gas per 24 hours. It successfully melts high lead crystal, alabaster, opal, gold ruby opalescent, and green opalescent glasses.

doi: 10.1111/j.1151-2916.1922.tb17649.xpmid: N/A