We would like to perform a minyan for the deaf. All the participants can speak verbally, but cannot hear, including the Torah reader. Can he sign the words that he is reading during Kri'at Hatorah, or is there a halacha that the Torah must be specifically oralized and only in Hebrew?
Rabbi Dovid Stein of Beit Kenesset Chatam in Rehovot has a large group of deaf people come and read Parshas Zachor from the torah every year. Meaning that each individual comes to the torah and reads for himself. Presumably this is because "krias hatorah" needs to be just that - reading from the torah, and sign language is not considered to fit into the halachik category of reading.
There are those who say based on the Rambam in Tefila 12:1 that the requirement to read the torah is a requirement of the community, but not of any one specific individual, and therefore if one were to miss some of the reading he does not have to make it up, because he is not individually required to hear it. (This would be in distinction from hearing meggilas Esther on Purim.) If that is the case, the same would hold true for deaf people. They are not individually required to hear the reading, and so it would not be necessary to have the reading signed to them.