1.  [JACK sb.1 6.] A jack of the clock that strikes the quarters.

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1604.  Middleton, Father Hubbard’s T., Wks. (Bullen), VIII. 54. The quarter-jacks in Paul’s, that are up with their elbows four times an hour.

2

1771.  [see JACK sb.1 6].

3

1874.  T. Hardy, Far fr. Mad. Crowd, I. xvi. 190. A little canopy with a quarter-jack and small bell beneath it.

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  2.  [JACK sb.7] A jack-boot cut down.

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1809.  Sir Frantic the Reformer, 75.

        He being transported, his first born
Long with these boots did ’s shanks adorn,
Until the tops being full of cracks,
He made them into quarter-jacks.

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