# The Operative Mechanic, and British Machinist: Being a Practical Display of the Manufactories and Mechanical Arts of the United Kingdom, Volume 1

Knight and Lacey, 1825 - Machinery - 795 pages
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### Contents

 I 1 II 7 IV 16 V 20 VI 21 VII 23 VIII 30 IX 32
 LVI 242 LVII 243 LVIII 246 LIX 249 LX 250 LXI 256 LXII 274 LXIII 277

 X 35 XI 43 XII 52 XIV 54 XVI 55 XVII 56 XVIII 61 XIX 64 XX 65 XXI 75 XXII 87 XXIII 92 XXIV 94 XXV 104 XXVI 105 XXVII 107 XXVIII 109 XXIX 110 XXX 112 XXXI 113 XXXII 114 XXXIII 120 XXXIV 122 XXXVI 128 XXXVII 139 XXXVIII 142 XXXIX 158 XL 160 XLI 161 XLII 162 XLIII 164 XLIV 216 XLV 218 XLVI 228 XLVII 229 XLVIII 230 L 231 LI 232 LIII 233 LIV 235 LV 237
 LXIV 282 LXV 283 LXVI 291 LXVII 309 LXVIII 311 LXIX 314 LXX 315 LXXI 323 LXXII 328 LXXIII 340 LXXIV 344 LXXV 356 LXXVI 365 LXXVII 378 LXXVIII 388 LXXIX 392 LXXX 400 LXXXI 410 LXXXII 416 LXXXIII 441 LXXXIV 445 LXXXV 447 LXXXVI 454 LXXXVII 456 LXXXVIII 486 XC 500 XCI 507 XCII 515 XCIII 524 XCIV 529 XCV 536 XCVI 547 XCVII 560 XCVIII 581 XCIX 606 C 621 CI 628 CII 635 CIII 639 CIV 643

### Popular passages

Page 684 - Multiply the sum of the two parallel sides by the perpendicular distance between them, and half the product will be the area.
Page 674 - Proportion, when the ratio is the same between every two adjacent terms, viz. when the first is to the second, as the second to the third, as the third to the fourth, as the fourth to the fifth, and so on, all in the same common ratio.
Page 683 - Sides given. The square of the hypotenuse is equal to both the squares of the two legs. Therefore, 1.
Page 676 - Prob. 7. Through a given point C, to draw a line parallel to a given line AB.
Page 59 - He broke a rope of two inches in circumference ; though, from his awkward manner, he was obliged to exert four times more strength than was necessary. He lifted a rolling stone of eight hundred pounds' weight with his hands only, standing in a frame above it, and taking hold of a chain fastened thereto.
Page 715 - ... arrangement on the rack. Each letter or stamp must be tried as to its heat, by imprinting its mark on the raw side of a piece of waste leather. A little practice will enable the workman to judge of the heat. The tool is now to be pressed downwards on the gold leaf, which will, of course, be indented and show the figure imprinted on it. The next letter or stamp is now to be taken and...
Page 115 - ... 4. Divide the circumference of the wheel in feet by the velocity of its floats in feet per second, and the quotient will be the number of seconds in which the wheel turns round.
Page 764 - ... easy and simple in the extreme, and so evidently efficient in its application, that it cannot but excite surprise that, in the present highly improved state of our manufactures, such a communication should be made as a discovery entirely new. Instead, therefore, of the customary mode of hardening the blade from the anvil, let it be passed immediately from the hands of the forger to the grinder ; a slight application of the stone will remove the whole of the scale or coating, and the razor will...
Page 147 - ... and a second quantity will be had. Multiply the area of the millstone by the weight of a cubic foot of the same stone, for a third quantity. Multiply the first quantity by the second, and divide the product by the third, and the quotient will be the weight required. 2. To find the number of cubic feet in the turning millstone, supposing it to have no eye :—From the weight of the spindle and lantern subtract the quantity found by the preceding rule, for the first number. Subtract this first...
Page 180 - First, I use two vessels in which the steam is to act, and which in other steam engines are called cylinders. Secondly, I employ the steam after it has acted in the first vessel to operate a second time in the other, by permitting it to expand itself...