Seeking a way to operate a Laundry Dryer when I'm not using my Kitchen Stove/Oven
Bad idea.  Those large NEMA 10-50 connectors are not  made for frequent use. Because of the very high insertion force, they are actually much more fragile than you would assume.  

Also, you are almost certainly dealing with old 3-prong NEMA 10 ungrounded connectors.  Dryers or stoves connect via an exception in the electrical code, in which they are allowed to bootleg ground, tying the machine chassis to the neutral wire.  This is dangerous because if the neutral wire ever breaks, it will electrify the machine's chassis!   The logic is "these connectors are unlikely to fail because they are rarely unplugged“. 

See a problem? 

An additional problem is that dryers are made to be matched with 30A breakers, not 40A or 50A.