Various patents on the New Holland-chopper

New Holland was the first manufacturer to integrate a metal detector and a corresponding sequencer into its forage harvesters to protect the chopper units.

Here is the related patent from 1973:

 

https://worldwide.espacenet.com/patent/search/family/023472937/publication/DE2430147A1?q=DE2430147

 

The automatic adjustment of the shearbar, which is now standard in all forage harvesters, was originally a New Holland invention. Here is the corresponding patent from 1987:

 

https://worldwide.espacenet.com/patent/search/family/021941082/publication/DE3855398T2?q=EP291216

 

This application is about a screen that is intended to prevent the cooler fan from sucking feed dust or corn juice emerging from the cracker into the cooler:

 

https://worldwide.espacenet.com/patent/search/family/066476542/publication/EP3735816B1?q=pn%3DEP3735816A1

Swiveling blower unit “Vari-Flow”

The swiveling blower unit of the FR series, known as "Vari-Flow," is basically a development of the "Fortschritt" company in Neustadt, Saxony.
The only "B"-prototype of the "Case 8790" ever built, was already equipped with this invention.
The basic principle is to reduce the distance between the cutting cylinder and the blower during grass harvesting.
This ensures a more consistent crop flow and reduces peak loads in the drivetrain.
After the acquisition of Case IH in 1999, New Holland adopted this idea and has been producing it since 2006.