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From Main Clause to Post-Positioned Adjective:
An Exercise in Style 
from Charles Dickens' A Tale of Two Cities
Analysis Key
Note: Other variations are possible.

1. Charles Darnay was alone (PA) {in a cell}. | He had sustained himself (DO) {with no flattering delusion} [Adv. to "had sustained" since he came {to it} {from the Tribunal}]. |

SC: Charles Darnay, [Adj. to "Charles Darnay" who was alone in a cell], had sustained himself with no flattering delusion since he came to it from the Tribunal. |

PPA: Charles Darnay, alone [PPA] in a cell, had sustained himself with no flattering delusion since he came to it from the Tribunal. |

2. The rain-drops are large (PA), heavy (PA), and few (PA). | They are still falling. | 
SC: The rain-drops, [Adj. to "rain-drops" which are large, heavy, and few], are still falling.  |

PPA: The rain-drops, large [PPA], heavy [PPA], and few [PPA], are still falling. |
  or:
The rain-drops are still falling, large [PPA], heavy [PPA], and few [PPA]. |

3. The strong tide was so swift (PA), so deep (PA), and certain (PA). | It was {like a congenial friend} (PA), {in the morning stillness}. |
SC: The strong tide, [Adj. to "tide" which was so swift, so deep, and certain], was like a congenial friend, in the morning stillness. |

PPA: The strong tide, so swift [PPA], so deep [PPA], and certain [PPA], was like a congenial friend, in the morning stillness. |

4. Darnay was unable (PA) to restrain himself [#1] any longer. | He touched Mr. Stryver (DO) {on the shoulder}. |
SC: Darnay, [Adj. to "Darnay" who was unable to restrain himself any longer], touched Mr. Stryver on the shoulder. |

PPA: Darnay, unable [PPA] to restrain himself any longer, touched Mr. Stryver on the shoulder. |

5. {In the midst} {of a great uproar} {in the court}, Doctor Manette was seen (P). | He was pale (PA) and trembling (PA) [#2]. |
SC: In the midst of a great uproar in the court, Doctor Manette, [Adj. to "Doctor Manette" who was pale and trembling], was seen. |

PPA: In the midst of a great uproar in the court, Doctor Manette was seen, pale [PPA] and trembling [PPA]. |

Notes
1. "Himself" is the direct object of the verbal (infinitive) "to restrain." The infinitive phrase functions as an adverb to the adjective "unable."
2. Following and joined to an adjective by "and," "trembling" will probably be processed as an adjective. Hence, we can explain it at a gerundive--a verbal adjective.