An Attempt to Analyse the Automaton Chess Player, of Mr. de Kempelen ... to which is Added, a ... Collection of the Knight's Moves Over the Chess Board (Livre numérique Google)

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Booth, 1821 - 40 pages
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Page 27 - ... the confidence of the spectators, and lead them insensibly from the main object of pursuit. The door (A) may safely be left open ; this will tend to confirm the opinion, which the spectators probably... formed on viewing the candle through, this cupboard, that no person was concealed within it : it will further assure them that nothing can pass in the interior without their knowledge, so long as this door continues open. " The drawer stands next in the order of succession : it is opened, apparently,...
Page 20 - ... spring or weight, or any system of machinery. In all machines requiring to be wound up two...
Page 31 - ... than a string communicating with the finger. His right hand being within the chest, may serve to keep in motion the contrivance for producing the noise, which is heard during the moves, and to perform the other tricks of moving the head, tapping on the chest, &c. " In order to facilitate the introduction of the player's left arm into the arm of the figure, the latter is obliged to be drawn backwards ; and to account for, and conceal this strained attitude, a pipe is ingeniously placed in the...
Page 18 - On that score no apprehension seems to be entertained ; the chest is ostentatiously opened, and the semblance, at least, of wheels, and pulleys, and levers, is submitted to inspection without reserve ; but when their reality should appear, and their connection with the Automaton be made manifest, the doors are carefully closed, and the spectators are required to pay large drafts on their credulity, without any means of further examination.
Page 21 - ... the key appeared to perform the same number of revolutions ; evincing thereby that the revolving axis was unconnected with machinery, except, perhaps a ratchet wheel and click, or some similar apparatus, to enable it to produce the necessary sounds, and consequently that the key, like that of a child's watch, might be turned whenever the purposes of the exhibition seemed to require it.
Page 36 - ... the third position. MA similar box to receive the toes of the player in the first position. N The inner chest, filling up part of the trunk. O The space behind the drawer. PQ The false back, turning on a joint at Q.
Page 21 - ... machines requiring to be wound up, two consequences are inseparable from their construction : the first is, that, in winding up the machinery, the key is limited in the number of its revolutions ; and the second is, that some relative proportion must be constantly maintained betwixt the winding up and the work performed, in order to enable the machine to continue its movements. Now these results are not observable in the...
Page 30 - ... much time as he finds necessary, in apparently adjusting the machinery at the back, whilst the player is taking the position described in figs. 7 and 8. In this position he will find no difficulty in executing every movement required of the automaton : his head being above the table, he will see the chess-board through the waistcoat as easily as through a veil; and his left hand extending beyond the elbow of the figure, he will be enabled to guide its hand to any part of the board, and to take...
Page 23 - Fig. 11 shews the same raised, forming the opening (s) between the chambers. When the trunk of the figure is exposed by lifting up the dress, it will be seen that a great part of it is occupied by an inner trunk...
Page 30 - ... half of the chest was then excluded from their sight. Hence we learn how easily, in matters of this sort, the judgment may be led astray by an artful combination of circumstances, each assisting the other towards the attainment of one object. - " When the doors in front have been closed, the exhibitor may occupy as much time as he finds necessary, in apparently adjusting the machinery at the back, whilst the player is taking the position described in Figs. 7- and 8. In this position he will find...

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