2 examples of knocking-off in sentences

" "Then, sir, we will talk of it at luncheon; it is knocking-off time for the morning.

When I saw the four meeting chains of the cage-roof emerge, the pointed roof, and two-sided frame, I stopped the ascent, and next attached to the knock-off gear a long piece of twine which I had provided; carried the other end to the cage, in which I had five companions; lit my hat-candle, which was my test for choke-damp, and the Davy; and without the least reflection, pulled the string.

2 examples of  knocking-off  in sentences