![In 1938, Californias Brooks Walker patented the 5th wheel product known as Park Car. With the use of a collection of gears and hydraulic pumps and strains, activation was designed by means In 1938, Californias Brooks Walker patented the 5th wheel product known as Park Car. With the use of a collection of gears and hydraulic pumps and strains, activation was designed by means](https://s3.anibl.com/wp-content/uploads/2021/06/in-1938-californias-brooks-walker-patented-the-5th-wheel-product.jpg?v=1622974154)
In 1938, Californias Brooks Walker patented the 5th wheel product known as Park Car. With the use of a collection of gears and hydraulic pumps and strains, activation was designed by means
![Parccar - “Spare Tire” Parking Innovation From The 1950s Would Be So Useful Right Now - ThrottleXtreme Parccar - “Spare Tire” Parking Innovation From The 1950s Would Be So Useful Right Now - ThrottleXtreme](https://www.throttlextreme.com/wp-content/uploads/2017/02/1951-Cadillac-Spare-Tire-Parking-System.jpg)
Parccar - “Spare Tire” Parking Innovation From The 1950s Would Be So Useful Right Now - ThrottleXtreme
Would it be possible for a large car to have an auxiliary wheel at right angles to the others to help with parking, etc.? - Quora
Would it be possible for a large car to have an auxiliary wheel at right angles to the others to help with parking, etc.? - Quora
![Brooks Walker's Fifth Wheel: This 1950s Car Had an Extra Wheel to Help With Parking | Vintage News Daily Brooks Walker's Fifth Wheel: This 1950s Car Had an Extra Wheel to Help With Parking | Vintage News Daily](https://2.bp.blogspot.com/-W2eTEJ8sqe8/XAanNcw0tZI/AAAAAAADYX8/2KGIc29Ow18y2TaGwexa2SONpG0Q3zmjgCLcBGAs/s1600/US-Patent-2139341-Brooks-Walker-Inventor-From-Walker-Research-Fifth-Wheel-Parking-Fonctionnement-And-Original-Pictures.jpg)