Chainsaw Repair

Looks like an old Southbend with a Lima drive .The Lima armature ,obviously from Lima Ohio built what they called over arm adaptors to convert old line shaft machines from previously line shaft driven .They just got the proper  sized motor and coupled it to a Ford Model A transmission.With a stepped vee belt pulley and the gears they could have many speeds .I've got a later Lima drive on one of my lathes circa 1912 .