Milk Bottle Companies: Buck Glass Company. Florida Glass Manufacturing Company. J. T. & A. Hamilton Company. Liberty Glass Company. Fruit Jar Companies: Ball Brothers Company. Jelly Glass Companies: Ball Brothers Company. Alexander H. Kerr & Company. [23] COMPANIES PRODUCING AND SHIPPING EACH CLASS OF PRODUCTS DURING 1937 WEST COAST MANUFACTURERS Narrow Neck Bottle Companies: Glass Containers, Inc. Hazel-Atlas Glass Company of Calif. Owens-Illinois Pacific Coast Co. Wide Mouth Bottle Companies: Glass Containers, Inc. Hazel-Atlas Glass Company of Calif. Latchford Marble Glass Company. Maywood Glass Company. Norhwestern Glass Company. Owens-Illinois Pacific Coast Co. Milk Bottles, Fruit & Jelly Glasses & Pressed Food_Ware: Hazel-Atlas Glass Company of Calif. Owens-Illinois Pacific Coast Co. Pressure & Nonpressure Ware: Glass Containers, Inc. Hazel-Atlas Glass Company of Calif. Latchford Marble Glass Company. Northwestern Glass Company. Beer Bottle Companies: Glass Containers, Inc. Hazel-Atlas Glass Company of Calif. Latchford Marble Glass Company. Northwestern Glass Company. Owens-Illinois Pacific Coast Co. [24] Wine Bottle Companies: Glass Containers, Inc. Hazel-Atlas Glass Company of Calif. Latchford Marble Glass Company. Maywood Glass Company. Northwestern Glass Company. Owens-Illinois Pacific Coast Co. Liquor Ware Companies: Glass Containers, Inc. Hazel-Atlas Glass Company of Calif. Latchford Marble Glass Company. Maywood Glass Company. Northwestern Glass Company. Owens-Illinois Pacific Coast Co. [25] Hazel-Atlas Glass Company of Calif. Owens-Illinois Pacific Coast Co. RELATIONSHIP OF SHIPMENTS TO CAPACITY SINCE 1928 The following chart shows the relationship of shipments to capacity in total number of gross since 1928. SHIPMENTS Shipments in gross, rather than production, have been selected for this study because production records are not available prior to 1932. It was found, by a study of the figures since 1932, for which production records are available, that shipments quite accurately reflect the production within a fiscal year period. CAPACITY The capacity for the industry has been computed by using a mathematical formula for each plant. This capacity is divided into active and potential. Active capacity is considered as capacity actually operating, or capable of operating within a period of 30 days. Potential capacity is considered as capacity where major repairs are necessary, and which cannot be put into operation within the 30-day limit. On the chart, the potential capacity line is the total of active capacity, plus potential capacity, and equals the total capacity for the industry. The melting area of a glass furnace determines quite accurately the amount of glass that can be produced by the glass furnace each day. In 1928 good operating furnaces were producing a ton of packed glass from 12 sq. ft. of melting area. Through improvement in tank design, better methods of firing, and generally improved efficiency in tank operation, this has been reduced so that currently good operating tanks are producing a ton of packed glass from 8 sq. ft. of melting This change has not been abrupt, but rather has been a steady and constant area. improvement each year. It may be noted that some furnaces in the industry have, and are obtaining, a better performance than this, while other furnaces are not obtaining this performance. An average performance, would be impractical to obtain because many furnaces are not called upon for capacity operation. By this we mean that business is not sufficient to operate all of the equipment on the furnace, or to in many cases justify the expenditure for new and improved equipment. The operation of many tanks in the industry proves that if the business were available, all tanks could meet the current capacity figure of a ton of glass for 8 sq. ft. of melting area. The chart reflects the improvement yearly in the efficiency of glass furnaces from a ton of glass for 12 sq. ft. of melting area, to a ton of glass for 8 sq. ft. of melting area. The working days per year are based on 280 days. This is arrived at by taking the total of 365 days, less 52 Sundays, less 5 [26] holidays, and less 28 working days for tank repairs, leaving a net of 280 working days per year. The opera tion is continuous, and the working day is 24 hours. While many glass furnaces operate for a longer period than the 280 days, it is conservative to calculate capacity on this basis. The number of gross for each company is computed by using the average weight bottle produced by that company. ACTUAL PERFORMANCE DURING 1937 Following the charts on shipments and capacity, we show by tabulation the performance of individual companies against this capacity figure for the year 1937, and for the month of June, which was the peak production month during the year. In the East, companies showing a low percentage of operation are companies that have specialized in certain classes of product, and have maintained a large capacity for peak periods of operation. Some of these classes have become smaller, and others have shown very little growth, certainly not in proportion to the increase in capacity. (Refer to chart on shipments by classes of ware.) While the majority of these companies have started producing additional classes of product during the last two or three years, this additional production has not become sufficient to bring their operation near the industry average. In the West the growth of business and of productive capacity have been very rapid. Construction of new capacity has not been in direct relationship to the increase in business. In 1936-37 two of the medium and small companies added new furnaces which more than doubled their capacity. Other companies are adding to their capacity in 1938. Companies in the industry have been classified as large, medium, and small; 1928 was used for this classification. Large companies are defined as those that shipped 1,000,000 gross or more in 1928. Medium-sized companies are defined as those that shipped between 200,000 and 1,000,000 gross in 1928. Small companies are defined as those that shipped less than 200,000 gross in 1928. Individual company identity has not been disclosed because of the confidential nature of the information. [29] PERCENTAGE OPERATION POUNDS PRODUCED TO CAPACITY FOR 1937 (CAPACITY BASED ON 8 SQUARE FEET OF ACTIVE MELTING AREA PER TON PACKED) EAST OF ROCKY MOUNTAINS [30] PERCENTAGE OPERATION POUNDS PRODUCED TO CAPACITY FOR 1937 (CAPACITY BASED ON 8 SQUARE FEET OF ACTIVE MELTING AREA PER TON PACKED) WEST COAST The percent- Shipments for each year since 1928 are related to the base year. age of increase or decrease from this base year is shown on the chart. percentage as an index number, the progress of the individual companies is clearly shown. For companies that have started since 1928, the second year of operation was taken as the base. [31] PROGRESS OF INDIVIDUAL COMPANIES SINCE 1928 For this chart, individual companies are given a number so that confidential information will not be disclosed. Companies in the industry have been classified as large, medium, and small; 1928 was used for this classification. Large companies are defined as those that shipped 1,000,000 gross or more in 1928. Medium-sized companies are defined as those that shipped between 200,000 and 1,000,000 gross in 1928. companies are defined as those that shipped less than 200,000 gross in 1928. Small |