https://randomthingsminecraftmod.wikispaces.com/ I tried going to both that site, as well as a general Google search, and have not found any information about the Item Corrector or the Item Sealer.

I am running Random Things version 3.7.1 for MC 1.9.4

Also, for the player interface, would it be possible to change it so that instead of the sides being hard coded to specific locations, you are able to open a gui to change the sides? At present, unless you have a mod installed that adds some sort of pipe you cannot pull out of your internal inventory, but instead it pulls out of your hotbar. Without having the ability to change the function of the face, this makes that item near useless since your hotbar is where your tools and such are. When taking into account the crafting requires some rather expensive items, it would make more sense to have either the sides configurable, or have the bottom be set to internal inventory, and one of the sides be hotbar.

In case you haven't already figured it out, you can use the Super Lubricant Ice for item transportation, what the item corrector does is when the items are sliding down the Super Lubricant Ice it will correct them to be centered on it, and if it also passes over a sealer than that makes it so you can't accidentally pickup the item.