Annual Report of the Secretary of Internal Affairs of the Commonwealth of Pennsylvania: Industrial statistics, 3. daļaDepartment of Internal Affairs, Bureau of Industrial Statistics, 1908 |
No grāmatas satura
1.–5. rezultāts no 25.
26. lappuse
... CEMENT INDUSTRY IN PENNSYLVANIA . * Pennsylvania is richly endowed with limestone , shale and clay suitable for the manufacture of Portland Cement . These materials have been so disposed by Nature as to render them readily accessible ...
... CEMENT INDUSTRY IN PENNSYLVANIA . * Pennsylvania is richly endowed with limestone , shale and clay suitable for the manufacture of Portland Cement . These materials have been so disposed by Nature as to render them readily accessible ...
27. lappuse
... cement rock formation . Cement rock is usually dark grey in color , but is often found having a black glistening appearance . As the content of calcium carbonate increases , the color become a somewhat lighter grey , and with the change ...
... cement rock formation . Cement rock is usually dark grey in color , but is often found having a black glistening appearance . As the content of calcium carbonate increases , the color become a somewhat lighter grey , and with the change ...
28. lappuse
... cement . A small plant was built and the cement was used on the canal . In the course of about three years , however , no other market was found for the product of this plant and the project was therefore abandoned shortly afterward ...
... cement . A small plant was built and the cement was used on the canal . In the course of about three years , however , no other market was found for the product of this plant and the project was therefore abandoned shortly afterward ...
29. lappuse
... cement clinker . The other is chemical and applies to the change wrought by the calcination of the finely pulverized material . Since the mechanical operation covers the fine pulverization of the cement clinker as well as the crushing ...
... cement clinker . The other is chemical and applies to the change wrought by the calcination of the finely pulverized material . Since the mechanical operation covers the fine pulverization of the cement clinker as well as the crushing ...
30. lappuse
... cement its strength , and alumina has the property of gov- erning the set of cement . Iron oxide when present within certain limits exerts little influence on the physical properties of cement . It materially assists however in burning ...
... cement its strength , and alumina has the property of gov- erning the set of cement . Iron oxide when present within certain limits exerts little influence on the physical properties of cement . It materially assists however in burning ...
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55 hours 60 hours affected by strike Aggregate amount alumina amount of wages Average daily wage Average number Average rent paid Average value produced Average working hours Average yearly earnings BITUMINOUS COAL brick Capital invested realty car shortage cent clay companies reporting Companies working 60 counties Days idle days in operation Days lost Employes affected establishments considered Females Germans Highest rent hours per week idle on account industry inside workmen involved in dispute Irish Italians labor lime lost by strike Lowest rent machinery Males manufacture Market or realized Market value mills Minors Nationality not given Number of companies number of days Number of employes Number of establishments number of wage paid per annum Pennsylvania Portland cement pounds Production in given Question in dispute Question involved rent per annum report Idle Serious accidents silk Strike arbitrated Strike unsuccessful Total number Total production value of production wage earners employed workmen over 16