The Progressive Machinist: A Practical and Educational Treatise, with Illustrations |
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The Progressive Machinist: A Practical and Educational Treatise, with ... Nehemiah Hawkins No preview available - 2016 |
The Progressive Machinist; A Practical and Educational Treatise, with ... N 1833- Hawkins No preview available - 2015 |
Common terms and phrases
adjusted angle applied Area body bolted boring called cast chisel chuck circle contains cutting describe designed diameter dimensions direction dividers drawing drawn drill edge engine equal face feed figure finished fixed flat foot force gear give given hammer hand handle hard hardened head heat heavy held holding hole illustrated inches iron kind lathe latter length less machine marked material means measure mechanical metal motion moving necessary operation ordinary parallel pencil piece pitch plate portion position practice radius represents rest round rule scale screw shaft shape shown in fig shows side slide solid space speed square steel strain strength surface TABLE taken teeth tempered term thread tool tooth true turned usually vise weight wheel
Popular passages
Page 20 - He that spends a groat a day idly spends idly above six pounds a year, which is the price for the use of one hundred pounds. He that wastes idly a groat's worth of his time per day, one day with another, wastes the privilege of using one hundred pounds each day. He that idly loses five shillings' worth of time loses five shillings, and might as prudently throw five shillings into the sea.
Page 24 - Rhodium . . Rubidium Ruthenium Samarium . . Scandium . . Selenium . . Silicon Silver Sodium Strontium . . Sulphur . . Tantalum . . Tellurium . . Terbium . . Thallium . . Thorium . . Thulium . . Tin.. Titanium . . Tungsten . . Uranium . . Vanadium . . Xenon Ytterbium Yttrium . . Zinc Zirconium...
Page 211 - POWERS, are six in number; viz. 1. The Lever; 2. The Wheel and Axle ; 3. The Pulley ; 4. The Inclined Plane ; 5. The Screw; 6. The Wedge.
Page 72 - TABLE. 4 farthings (far. or qr.) make 1 penny, d. 12 pence " 1 .shilling, s. 20 shillings " 1 pound or sovereign, £ or sov.
Page 67 - Square Measure 144 square inches = 1 square foot 9 square feet = 1 square yard...
Page 69 - CUBIC MEASURE 1728 cubic inches = 1 cubic foot 27 cubic feet = 1 cubic yard 128 cubic feet...
Page 113 - From a point P in this line draw the perpendicular P B to the line AB, and on P describe the circle BD, touching the lines and cutting the center line at E. From E draw EF perpendicular to the center line, cutting AB at F, and from Fig.
Page 38 - ... can- be easily drilled and turned in the lathe, and does not resist the file. It has a brilliant fracture, of a gray, or sometimes a bluish-gray, color; the color is lighter as the grain becomes closer, and its hardness increases at the same time.
Page 53 - We do not say what gravity is, but what it does, — namely, that it is something which gives to every particle of matter a tendency toward every other particle. This influence is conveyed from one body to another without any perceptible interval of time.