Translation of conveyor in Spanish

Will you be online in 1 hour? I saw your translations and had some comments: rainbow is it 'arco iris' or one word arcoisris? Usually all words appear lower case. Sometimes it is uppercase. It all depends.
I have even met someone who invited me to come and visit. It was an older couple who were renting apartments for language students. Well, actually there are agencies that offer the same as this couple, but I'm open.
I have learned German for one year and I would like to intensify my studies. Do not know how yet... It is very difficult at my age to start new projects in life. I am over 75, did I tell ya...