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Manufacturing and Economy of Machinery
All Manufacturing and Economy of Machinery
Accumulating Power
20. Whenever the work to be done requires more force for its execution than can be generated in the time necessary for its completion, recourse must be had to some mechanical method of preserving and condensing a part of the power exerted previously...
Copying With Elongation
140. In this species of copying there exists but little resemblance between the copy and the original. It is the cross-section only of the thing produced which is similar to the tool through which it passes. When the substances to be operated upon ...
Distinction Between Making And Manufacturing
163. The economical principles which regulate the application of machinery, and which govern the interior of all our great factories, are quite as essential to the prosperity of a great commercial country, as are those mechanical principles, the op...
Economy Of The Materials Employed
77. The precision with which all operations by machinery are executed, and the exact similarity of the articles thus made, produce a degree of economy in the consumption of the raw material which is, in some cases, of great importance. The earliest...
Enquiries Previous To Commencing Any Manufactory
298. There are many enquiries which ought always to be made previous to the commencement of the manufacture of any new article. These chiefly relate to the expense of tools, machinery, raw materials, and all the outgoings necessary for its producti...
Exerting Forces Too Great For Human Power And Executing Operations Too Delicate For Human Touch
56. It requires some skill and a considerable apparatus to enable many men to exert their whole force at a given point; and when this number amounts to hundreds or to thousands, additional difficulties present themselves. If ten thousand men were hi...
Extending The Time Of Action Of Forces
45. This is one of the most common and most useful of the employments of machinery. The half minute which we daily devote to the winding-up of our watches is an exertion of labour almost insensible; yet, by the aid of a few wheels, its effect is spr...
Increase And Diminution Of Velocity
32. The fatigue produced on the muscles of the human frame does not altogether depend on the actual force employed in each effort, but partly on the frequency with which it is exerted. The exertion necessary to accomplish every operation consists of...
Of Copying
82. The two last-mentioned sources of excellence in the work produced by machinery depend on a principle which pervades a very large portion of all manufactures, and is one upon which the cheapness of the articles produced seems greatly to depend. T...
Of Copying By Casting
105. The art of casting, by pouring substances in a fluid state into a mould which retains them until they become solid, is essentially an art of copying; the form of the thing produced depending entirely upon that of the pattern from which it was ...
Of Copying By Moulding
112. This method of producing multitudes of individuals having an exact resemblance to each other in external shape, is adopted very widely in the arts. The substances employed are, either naturally or by artificial preparation, in a soft or plasti...
Of Copying By Punching
133. This mode of copying consists in driving a steel punch through the substance to be cut, either by a blow or by pressure. In some cases the object is to copy the aperture, and the substance separated from the plate is rejected; in other cases t...
Of Copying By Stamping
128. This mode of copying is extensively employed in the arts. It is generally executed by means of large presses worked with a screw and heavy flywheel. The materials on which the copies are impressed are most frequently metals, and the process is...
Of Copying With Altered Dimensions
147. Of the pentagraph. This mode of copying is chiefly used for drawings or maps: the instrument is simple; and, although usually employed in reducing, is capable of enlarging the size of the copy. An automaton figure, exhibited in London a short t...
Of Money As A Medium Of Exchange
166. In the earlier stages of societies the interchange of the few commodities required was conducted by barter, but as soon as their wants became more varied and extensive, the necessity of having some common measure of the value of all commodities...
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Most Viewed
Of Raw Materials
On The Causes And Consequences Of Large Factories
Accumulating Power
Of Price As Measured By Money
Enquiries Previous To Commencing Any Manufactory
On The Influence Of Durability On Price
Of Copying By Punching
Extending The Time Of Action Of Forces
Least Viewed
On The Influence Of Verification On Price
Of Copying With Altered Dimensions
On The Cost Of Each Separate Process In A Manufacture
On The Position Of Large Factories
On A New System Of Manufacturing
On Combinations Of Masters Against The Public
On The Effect Of Taxes And Of Legal Restrictions Upon Manufactures
Of Printing From Cavities