A combined shoe and tongue device for a cigarette making machine defines a tobacco receiving through-passage which has a rectangular cross section at its upstream end (18A), which cross section then changes rapidly along a relatively small proportion of the total length of the through-passage, to a rounded concave section, and the rounded section (24) then changes progressively to section (26) by way of reducing its width while retaining substantially its height. The important feature of maintaining the height while reducing the width of the filler stream may also be used in other arrangements described in the specification.
