The Operative Mechanic, and British Machinist: Being a Practical Display of the Manufactories and Mechanical Arts of the United Kingdom, Band 1Knight and Lacey, 1825 - 795 Seiten |
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Seite 46
... iron as if it had fallen from a great height . Had it been allowed to fly to that height , it would have fallen upon the iron with somewhat more force , ( because no oaken spring is perfectly elastic , ) but this would have re- quired ...
... iron as if it had fallen from a great height . Had it been allowed to fly to that height , it would have fallen upon the iron with somewhat more force , ( because no oaken spring is perfectly elastic , ) but this would have re- quired ...
Seite 73
... iron to which they are attached , and it also increases the speed of any navigable body through the water to which ... iron arm frames to which one end of the paddles C , C , C , C , C , C , are attached by the joint - pins D , D , D , D ...
... iron to which they are attached , and it also increases the speed of any navigable body through the water to which ... iron arm frames to which one end of the paddles C , C , C , C , C , C , are attached by the joint - pins D , D , D , D ...
Seite 74
... iron frames B , B , B , B , exactly an equal distance apart from each other ; and it must also be observed in piercing or drilling the joint pin - holes in the circle EE , that they correspond with the holes made in the arm frames B , B ...
... iron frames B , B , B , B , exactly an equal distance apart from each other ; and it must also be observed in piercing or drilling the joint pin - holes in the circle EE , that they correspond with the holes made in the arm frames B , B ...
Seite 89
... iron plate the moving shuttle e is applied ; it fits close to the cast - iron so as to prevent the water from leaking between them , and the water runs over its upper edge . F is an iron groove or channel let into the masonry of the ...
... iron plate the moving shuttle e is applied ; it fits close to the cast - iron so as to prevent the water from leaking between them , and the water runs over its upper edge . F is an iron groove or channel let into the masonry of the ...
Seite 90
... iron groove pieces or channels which are let into the stone - work of the side walls , and being made wedge - like , they fix the ends of the cast - iron breast fast in its place . The grooves are not upright , but inclined to the ...
... iron groove pieces or channels which are let into the stone - work of the side walls , and being made wedge - like , they fix the ends of the cast - iron breast fast in its place . The grooves are not upright , but inclined to the ...
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angles applied axis axle bottom brass bricks bucket called centre circle circumference cock colour common construction copal copper cupel cylinder described diameter draw edge effect ellipsis engine epicycloid equal fastened feet fixed flax force four frame friction frustum geer groove gudgeon heat hole horizontal hour inches iron joint length lever linseed oil litharge lower machine machinery manner matrass means metal mill mill-stone mortise and tenon motion mould moving nitrous acid operation pallet pass pendulum perpendicular piece pinion pipe piston placed plane plate pounds pressure proportion pulley pump quantity radius rail raised ratchet-wheel represented rollers rope round sandarac screw shaft side sliding spindle square steam steel stone sufficient surface teeth thickness threads tooth tube turned turpentine upper valve varnish velocity vertical vessel water-wheel weight wheel whole wire wood yarn
Beliebte Passagen
Seite 684 - Multiply the sum of the two parallel sides by the perpendicular distance between them, and half the product will be the area.
Seite 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.
Seite 683 - Sides given. The square of the hypotenuse is equal to both the squares of the two legs. Therefore, 1.
Seite 676 - Prob. 7. Through a given point C, to draw a line parallel to a given line AB.
Seite 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.
Seite 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...
Seite 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.
Seite 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...
Seite 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...
Seite 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...