The 11" lathe, known as the Model 5, was more substantially constructed than the 9" with an increased weight of over 150 lbs. The 15/32" bore spindle ran in what were known at the time as bronze "boxes", which were adjustable for alignment and wear. As standard, the toolslide was a single, swivelling unit - although a compound slide rest was available for an additional $3.50. Like the Model No.41/2, the No. 5 was offered with a choice of a $20 power-type countershaft, an ordinary treadle or a velocipede pedal drive - in the latter case with three rather than two pedals so that the adjustable seat could be moved down the longer bed to undertake turning jobs near the tailstock.
The Model 5 was also available with a 15-inch capacity gap bed and an improved specification. The cross slide was enlarged to become a useful, T-slotted boring table which carried a swivelling top slide as part of the regular equipment. The set-over tailstock was completely redesigned along more conventional lines with a thick base plate and a greatly extended nose to reach over the wide cross slide.

Barnes 11" No.5 lathe with velocipede drive. The slotted cruciform-style backplate on the floor by the pedals was used as a "driver" or "catch" plate to turn work between centres - this particular design must be the most dangerous ever invented - perfect for grabbing the sleeve of an unsuspecting operator and winding him into the mechanism. If you have one with your antique lathe - bin it, or frame it, but don't use it; ever. They have been proved, however, to have their uses: Doug Elliot, a Barnes owner in California reports that the previous keeper of his lathe had attempted to force onto the Barnes' spindle a 3-jaw chuck intended for a 6-inch Atlas -  and so violently had this been done that the chuck had split into two parts. Undeterred, the enterprising and presumably impecunious "machinist" recessed the cruciform backplate a 1/4" or so, to the exact diameter of the chuck, bolted it in place through slots and went on using it ……..

Barnes 11" No.5 lathe with gap bed and large, T-slotted boring table and compound slide rest. Note the extended tailstock casting designed to carry the barrel over the wider slide - and the three-pedal arrangement to permit the operator to work nearer the tailstock.