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Manufacturing

Enquiries Previous To Commencing Any Manufactory
298. There are many enquiries which ought always to be made ...

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

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

Increase And Diminution Of Velocity
32. The fatigue produced on the muscles of the human frame d...

On Combinations Of Masters Against The Public
376. A species of combination occasionally takes place among...

Sources Of The Advantages Arising From Machinery And Manufactures
1. There exists, perhaps, no single circumstance which disti...

Of The Identity Of The Work When It Is Of The Same Kind And Its Accuracy When Of Different Kinds
79. Nothing is more remarkable, and yet less unexpected, than...

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

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

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

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

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

On Over Manufacturing
284. One of the natural and almost inevitable consequences of...

On The Influence Of Durability On Price
197. Having now considered the circumstances that modify what...

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

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

On The Duration Of Machinery
340. The time during which a machine will continue to perform...

Of Raw Materials
210. Although the cost of any article may be reduced in its ...



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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