Family Almoslino from now Novi Sad

My grandmother´s father were Ignatz Almuslin b 1829 in then Ujvidek in Hungary. he emmigrated to Stcoholm, Sweden, about 1850. There he educcated himself in the field of passementerie. His father was Abraham b 1792 and his mother Eva. He, his parents and his three siblings were documented in the Census of 1848 in Hungary. There seems to evidence that this family of now Novi Sad earlier came from Belgrade. This is documented in one of Pavel Sosberger´s book "Our fellow-Citizen Jews-Biographies". He there claims that this family is of sephardic origin.
I have tried to locate Abrahams father and ´to go even further back in time. But I have failed!. Abrahams father is documented as Branch Ujvidek in one document, but no trace of name and other signs.
Do anyone know more about this family from now Novi Sad?
Johan Haesert
Stockholm
Sweden