A Comparison of British and American Foundry Practice: With Special Reference to the Use of Refractory Sands |
Common terms and phrases
99 Potash Alumina American foundries Anal artificial bond Barium oxide Belgian bonded sands bonding material Britain British sands burning-on castings cent chemical analyses Clay substance clay-grade coarse colloidal constituents core-sands cores Cornish Red Ferric oxide Ferrous ferruginous fettling fireclay foundry FOUNDRY PRACTICE foundry-sands French Red G. F. Pettinos grade grains Gravel H. F. Harwood hematite high-silica sands Hydrated iron oxide Jersey Jersey sands kaolin Key Sand Lime felspar limonite Loss on ignition Lumberton Magnesia Massillon mechanical analyses mechanical composition metal method Millimetres Millville Millville Sand Mineral Composition calculated mixing mixture Moist molasses mould moulding-sands naturally-bonded sands obtained Ottawa output permeability Portage Potash production proportion quantity quarries Quartz refractory Refractory Sands sample Sandstone short ton Silica Alumina Silica Clay silica rock silica sand steel foundries steel-casting sub-angular supplies surface Titanic oxide tons Total trace trace W. J. Rees Water above 110 Water below 110
Popular passages
Page 56 - Resolved, by the American Federation of Labor in convention assembled, that a broad program of scientific and technical research is of major importance to the national welfare...
Page 56 - ... industry resulting from scientific research is a most potent factor in the ever-increasing struggle of the workers to raise their standards of living, and the importance of this factor must steadily increase since there is a limit beyond which the average standard of living of the whole population can not progress by the usual methods of readjustment, which limit can only be raised by research and the utilization of the results of research in industry; and WHEREAS, there are numerous important...
Page 56 - Federation is instructed to transmit copies of this resolution to the President of the United States, to the President pro tempore of the Senate, and to the Speaker of the House of Representatives.
Page 56 - ... usual methods of re-adjustment, which limit can only be raised by research and the utilization of the results of research in industry; and WHEREAS, there are numerous important and pressing problems of administration and regulation now faced by federal, state, and local governments, the wise solution of which depends upon scientific and technical research; and WHEREAS, the war has brought home to all the nations engaged in it the overwhelming importance of science and technology to national welfare,...
Page 56 - Whereas, scientific research and the technical application of results of research form a fundamental basis upon which the development of our industries, manufacturing, agriculture, mining, and others must rest; and "Whereas, the productivity of industry is greatly increased by the technical application of the results of scientific research in physics, chemistry, biology, and geology, in engineering and agriculture, and in the related sciences; and the health and well-being not only of the workers,...
Page 56 - ... progress by the usual methods of readjustment, which limit can only be raised by research and the utilization of the results of research in industry; and WHEREAS, There are numerous important and pressing problems of administration and regulation now faced by federal, state, and local governments, the wise solution of which depends upon scientific and technical research; and WHEREAS, The war has brought home to all the nations engaged in it the overwhelming importance of science and technology...
Page 72 - Kampmann, a good sand for moulds may be artificially made from the following mixture : — Fine quartzose sand 93...
Page 45 - Considering the amount of fine-grinding undertaken, the works' which are well- ventilated, are remarkably free from dust. The sand itself is screened for various purposes. Ottawa sand, which passes a screen having 20 meshes to the linear inch...
Page 43 - Some seams of the rock are not quite so pure as others, but all are mixed before being washed. The rock, which is a soft sandstone composed of rounded grains of quartz, is usually almost entirely disintegrated in the course of blasting and subsequent immersion in water is sufficient to cause it all to fall apart as free sand. The material is sluiced down after being blasted, and piped to the foot of the elevator (see Frontispiece). The elevator consists of the usual form of belt but has wooden "...
Page 43 - The elevator consists of the usual form of belt but has wooden " riffles," about 4 inches high and 12 inches apart, extending across its whole width. The riffles consist of two battens, the upper one screwed on to the lower. As they wear, therefore, the upper ones are replaced without interfering with the attachment of the lower ones to the belt.