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Table ///.—TROY WEIGHT. 24 grains, gr. make 1 pennyweight. dwt. 20 pennyweights " 1 ounce. oz. 12 ounces
Colburn's First Lessons: Intellectual Arithmetic, Upon the Inductive Method ... - Σελίδα 123
των Warren Colburn - 1827 - 172 σελίδες
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο

## An English spelling-book. To which are added first lessons in grammar [&c.].

English spelling book - 1859
...190 9 10 I . 1 200 10 0 t » >n » j Weights and Measures. TROY, OK GOLDSMITHS' WEIGHT. 24 grains = 1 pennyweight (dwt.) 20 pennyweights = 1 ounce (oz.) 12 ounces = 1 pound (lb.) APOTHECABIES' WEIGHT. 20 grains = 1 scruple. 3 scruples = 1 dram. 8 drams = 1 ounce. 12 ounces = 1...

## The engineer's, millwright's and machinist's practical assistant

...experiments. 1-901306 cubic inches of pure MARK. water, at 62° Fahrenheit ... = 480 grains, gr. 24 grains = 1 pennyweight, dwt. 20 pennyweights = 1 ounce, oz. 12 ounces = 1 pound, Ib. NOTE.— Avoirdupois Ibs. x 1-21528 = Troy Ibs. „ bz. X -9115 = „ oz. Troy Ibs. x -823 = Avoi.lbs....

## The Practical Model Calculator, for the Engineer, Mechanic, Machinist ...

Oliver Byrne - 1863 - 588 σελίδες
...Liquids ; also all Metals except Silver and Gold. Oz. Dwt. Gr. TROY WEIGHT. Grains marked Gr. 24 Grains make 1 Pennyweight Dwt. 20 Pennyweights 1 Ounce Oz. 12 Ounces 1 Pound Lb. Gr. Dwt. 24 = 1 Oz. 480 = 20 = 1 Lb. 5760 = 240 = 12 = 1 By this weight are weighed Gold, Silver, and...

## Illustrated Hand-Book and Price Current of Machinery and Iron Work

Appleby Brothers - 1863
...MEASURES OF WEIGHT— TROY. U8ED FOR PRECIOU8 METAL8. 4 grains (marked gr. ) = 1 carat (marked car.) 24 ,, =1 pennyweight ,, dwt. 20 pennyweights = 1 ounce „ oz. 12 ounces = 1 pound ,, Ib. AVOIRDUPOIS. U8ED IN ALL MERCANTILE TRAN8ACTION8, AND IN THE COMMON DEALING8 OF LIFE. 27•34375...

## The Common School Arithmetic: Combining Analysis and Synthesis : Adapted to ...

James Stewart Eaton - 1868 - 324 σελίδες
...Taken in what order? 94. For wlmt is Troy Weight used? Repeat the table. Descending scalet Ascending? 24 Grains (gr.) make 1 Pennyweight, dwt. 20 Pennyweights " 1 Ounce, oz. 12 Ounces " 1 Pound, Ib. dwt. gr. oz. 1 = 24 Ib. 1 = 20 = 480 1 = 12 = 240 = 5760 lions are added mentally, and only the...

## The Common School Arithmetic: Combining Analysis and Synthesis, Adapted to ...

James Stewart Eaton - 1866 - 312 σελίδες
...tables. TROY WEIGHT. 94. TROY WEIGHT is used in weighing gold, silver, and precious stones. TABLE. 24 Grains (gr.) make 1 Pennyweight, dwt. 20 Pennyweights " 1 Ounce, oz. 12 Ounces " 1 Pound, 1b; dwt. gr. oz. 1 = 24 lb. 1 = 20 = 480 1 = 12 = 240 = 5760 Ex. 1. How many grains in Ex. 2. Reduce...

## Arithmetic step by step, by H. Combes and E. Hines, Μέρος 1

Henry Combes - 1866
...hundredweight (cwt., 112 1bs.). 1 ton. 1 stone. 2.— TBOY. (Used by goldsmiths.) 24 grains (grs.) make 1 pennyweight (dwt.). 20 pennyweights „ 1 ounce (oz.). 12 ounces „ 1 pound (lb.). 7,000 grs. 1 lb. Av. | 5,760 grs. 1 lb. Troy. 3. — APOTHECABEES. • (Used by chemists.) 20 grains...

## The advanced lesson book, by E.T. Stevens and C. Hole

Edward Thomas Stevens - 1866
...weight. TROT WEIGHT, For Precious Stones and Metals, and in Phitosophical Experiments. 2i grains = 1 pennyweight (dwt.) 20 pennyweights = 1 ounce (oz.) 12 ounces = 1 pound (Ib.) A pound troy contains 5760 grains. A pound avoirdupois contains 7000 grains. LONG MEASURE. 12...

## The Metric System of Weights and Measures Compared with British Standard ...

...• 2,218 • 192 64 32 8 4 8 |Qu 7 640 • 17,745 • 536 512 256 64 32 TROY WEIGHT.— 24 grains = 1 pennyweight (dwt.), 20 pennyweights = 1 ounce (oz.), 12 ounces = 1 pound (Ib.) In weighing Diamonds, there are 151} carats to the ounce Troy ; and for Pearls, the ounce is...

## A shilling arithmetic

...the sun ? 61. Troy Weight. Used for Gold, Silver, and Jewelling, and in Philosophical Experiments. 24 grains (gr.) make . 1 pennyweight (dwt.) 20 pennyweights . . 1 ounce (oz.) 12 ounces 1 pound (Ib.) NB The troy pound and ounce are not the same as the avoirdupois pound and ounce ; but — 1 Ib....