A Treatise On the Progressive Improvement And Present State of the Manufacture
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To quickly assess the difficulty of the text, read a short excerpt:
The largest of the plates here mentioned is capable by reduction of being converted into 7J plates having the dimensions of the smallest in the Table ; whereas the price of the former is 23^- times greater than that of each of the small plates, and more than 3^ times the aggregate value of those into which it would be divided. The reason for this progression al rate in the prices is sufficiently obvious. Could such a degree of perfection be attained in the different processes of manufacture, 20...8 GLASS MANUFACTURE.
CHAP. VI.
Dimensions.
Surface in Square Inches.
Price.
Price per Sq. Inch.
s. D.
d.
60 inches by 30 inches.
1, 800 10 10 1 1-400 60 - - 40 - - 2, 400 16 3 5 1-617 60 - - 50 - 3, 000 22 10 5 1-800 70 - - 50 - - 3, 500 28 7 8 1-946 80 - - 50 - - 4, 000 34 14 10 2-085 100 - - 50 - - 5, 000 48 9 8 1-327 100 - - 60 - - 6, 000 63 15 1 2-550 100 - - 70 - - 7, 000 80 8 2 2-757 100 - - 80 - - 8, 000 98 4 10 2-947 132 - - 84 - - 11, 088 200 8 4-337 160 - - 80 - - 12, 800 246 15 4 4-705 that a certainty existed of producing plates of every re- quisite dimension, there would no longer be any pre- tence for thus enhancing the prices of the larger pieces ; and plates might be sold indiscriminately at so much per superficial foot in the manner usual with linen or woollen fabrics, making perhaps some allowance for the greater expensiveness of machinery required for large than for small operations.
What to read after A Treatise On the Progressive Improvement And Present State of the Manufacture?
You can find similar books in the "Read Also" column, or choose other free books by George Richardson Porter to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The largest of the plates here mentioned is capable by reduction of being converted into 7J plates having the dimensions of the smallest in the Table ; whereas the price of the former is 23^- times greater than that of each of the small plates, and more than 3^ times the aggregate value of those into which it would be divided. The reason for this progression al rate in the prices is sufficiently obvious. Could such a degree of perfection be attained in the different processes of manufacture, 20...8 GLASS MANUFACTURE.
CHAP. VI.
Dimensions.
Surface in Square Inches.
Price.
Price per Sq. Inch.
s. D.
d.
60 inches by 30 inches.
1, 800 10 10 1 1-400 60 - - 40 - - 2, 400 16 3 5 1-617 60 - - 50 - 3, 000 22 10 5 1-800 70 - - 50 - - 3, 500 28 7 8 1-946 80 - - 50 - - 4, 000 34 14 10 2-085 100 - - 50 - - 5, 000 48 9 8 1-327 100 - - 60 - - 6, 000 63 15 1 2-550 100 - - 70 - - 7, 000 80 8 2 2-757 100 - - 80 - - 8, 000 98 4 10 2-947 132 - - 84 - - 11, 088 200 8 4-337 160 - - 80 - - 12, 800 246 15 4 4-705 that a certainty existed of producing plates of every re- quisite dimension, there would no longer be any pre- tence for thus enhancing the prices of the larger pieces ; and plates might be sold indiscriminately at so much per superficial foot in the manner usual with linen or woollen fabrics, making perhaps some allowance for the greater expensiveness of machinery required for large than for small operations.
What to read after A Treatise On the Progressive Improvement And Present State of the Manufacture?
You can find similar books in the "Read Also" column, or choose other free books by George Richardson Porter to read onlineMoreLess
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