Not exactly 1800s machines, but these books cover non industrial way of life. https://www.foxfire.org/shop/category/books/foxfire-series/ and a couple health books https://store.hesperian.org/prod/Where_There_Is_No_Doctor.html https://hesperian.org/wp-content/uploads/pdf/en_dent_2020/en_dent_2020_fm.pdf
https://store.hesperian.org/prod/Where_There_Is_No_Doctor.html the synopsis is on "vaccines", something that is impossible to produce in any safe form if there is a disaster...
(post is archived)