BY MRS. M. R. ALLEN A long time ago there was a Bear that had a fine pea patch. He and his wife had to work in the field every day, so they left their little girl at home to keep house. One fine morning Br'er (which means "Brother") Rabbit... Read more of The Rabbit And The Peas at Children Stories.caInformational Site Network Informational
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   Home - Steel Making - Categories - Manufacturing and the Economy of Machinery

Manufacturing

Registering Operations
65. One great advantage which we may derive from machinery is...

On Combinations Amongst Masters Or Workmen Against Each Other
353. There exist amongst the workmen of almost all classes, ...

Of Copying
82. The two last-mentioned sources of excellence in the work ...

On The Division Of Labour
217. Perhaps the most important principle on which the econo...

Proper Circumstances For The Application Of Machinery
329. The first object of machinery, the chief cause of its e...

Printing From Surface
91. This second department of printing is of more frequent a...

On The Position Of Large Factories
277. It is found in every country, that the situation of lar...

On Contriving Machinery
318. The power of inventing mechanical contrivances, and of ...

Copying With Elongation
140. In this species of copying there exists but little rese...

Accumulating Power
20. Whenever the work to be done requires more force for its ...

On A New System Of Manufacturing
305. A most erroneous and unfortunate opinion prevails among...

On The Causes And Consequences Of Large Factories
263. On examining the analysis which has been given in chapt...

Of Copying By Stamping
128. This mode of copying is extensively employed in the art...

On The Effect Of Machinery In Reducing The Demand For Labour
404. One of the objections most frequently urged against mac...

Extending The Time Of Action Of Forces
45. This is one of the most common and most useful of the em...

Distinction Between Making And Manufacturing
163. The economical principles which regulate the application...

Of Copying By Casting
105. The art of casting, by pouring substances in a fluid st...

On The Exportation Of Machinery
437. A few years only have elapsed, since our workmen were n...

Of Copying By Punching
133. This mode of copying consists in driving a steel punch ...

On The Method Of Observing Manufacturies
160. Having now reviewed the mechanical principles which reg...



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. The
principle alluded to is that of copying, taken in its most
extensive sense. Almost unlimited pains are, in some instances,
bestowed on the original, from which a series of copies is to be
produced; and the larger the number of these copies, the more
care and pains can the manufacturer afford to lavish upon the
original. It may thus happen, that the instrument or tool
actually producing the work, shall cost five or even ten thousand
times the price of each individual specimen of its power.

As the system of copying is of so much importance, and of
such extensive use in the arts, it will be convenient to classify
a considerable number of those processes in which it is employed.
The following enumeration however is not offered as a complete
list; and the explanations are restricted to the shortest
possible detail which is consistent with a due regard to making
the subject intelligible.

Operations of copying are effected under the following
circumstances:

by printing from cavities by stamping
by printing from surface by punching
by casting with elongation
by moulding with altered dimensions





Next: Of Printing From Cavities

Previous: Of The Identity Of The Work When It Is Of The Same Kind And Its Accuracy When Of Different Kinds



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