How to use an orange press?

Excuse me, could you please elaborate on the steps involved in using an orange press? I'm a bit unfamiliar with the process and would appreciate a clear, concise explanation. Specifically, I'm wondering about the initial setup, the technique for squeezing the oranges, and any tips or tricks for getting the most juice out of each fruit. Additionally, I'd like to know if there are any safety precautions I should be aware of while operating the press. Thank you in advance for your assistance.