Lanphear Herbert Scott (1856-1923) was granted letters patent for a Machine for Paring Apples on June 2, 1885 (Scott, 1885). Lanphear's patent was for a lathe parer similar in design to the Oriole parer, patented by his brother R. P. Scott. However, in Lanphear's design the threaded disc stays engaged with the rack. After paring, coring and slicing a projection on the disc pivots the spring loaded rack aside so that the cranck can be pulled back to starting position. As the rack is pulled back an L-shaped rod pushes the core off the forks. The coring/slicing blade is also designed differently than the Oriole. The parer works more smoothly than the Oriole.
The first version of this parer made before the patent was granted is equipped with a 4 inch threaded wheel (below), while examples made after the patent was granted are designed with a 4.5 inch threaded wheel.
Scott, L. H., inventor, Machine for Paring Apples, 1885 June 2. US319332.