1
Henry K Orthman: Floating folding tool bar having a lock means. Orthman Manufacturing, Zarley McKee Thomte Voorhees & Sease, February 21, 1978: US04074766 (50 worldwide citation)

A farm implement tool bar includes a main frame section having a wing section pivotally connected thereto and operated by a hydraulic cylinder located in a passageway in the main frame. The pivotal connection between the hydraulic cylinder and the wing section includes a lost motion connection to al ...


2
Henry K Orthman: Folding tool bar having a transport brace. Orthman Manufacturing, Zarley McKee Thomte & Voorhees, March 2, 1976: US03941194 (26 worldwide citation)

A farm implement tool bar includes a hollow main frame and oppositely extending wing sections pivotal between horizontal and vertical positions. A hydraulic cylinder is connected to a mounting assembly including upper and lower mounting plates interconnected at their inner ends by a vertical post. T ...


3
Henry K Orthman: Apparatus for synchronizing the steering disc and row follower means of a row crop implement. Orthman Manufacturing, Zarkey McKee Thomte Voorhees & Sease, October 21, 1980: US04228860 (22 worldwide citation)

In a row crop implement having an elongated tool bar, a steerable coulter disc, a row follower mechanism connected to the tool bar, and a device for steering the coulter disc in response to movement of the row follower mechanism, an apparatus for synchronizing the steering disc and row follower mech ...


4
Henry K Orthman: Steering device for row crop cultivator. Orthman Manufacturing, Zarley McKee Thomte Voorhees & Sease, January 22, 1980: US04184551 (21 worldwide citation)

A precision steering apparatus, affixed to the tool bar of a row crop cultivator, includes a pair of transversely spaced and pivotally mounted coulter discs and a steering mechanism for pivotally moving the coulter discs in unison. A furrow follower mechanism detects lateral drifting of the cultivat ...


5
Henry K Orthman: Tractor front end hitch. Orthman Manufacturing, Zarley McKee Thomte Voorhees & Seas, May 28, 1985: US04519623 (20 worldwide citation)

A tractor front end hitch comprising a main frame removably secured to the front end of a tractor and having a pair of lower lift arms pivotally secured thereto and extending forwardly therefrom for connection to the implement. A pair of upper lift arms are pivotally secured at their rearward ends t ...


6
Henry K Orthman: Ground conditioning device and method of conditioning soil. Orthman Manufacturing, Zarley McKee Thomte Voorhees & Sease, July 25, 1978: US04102406 (18 worldwide citation)

Water-holding and retaining cavities are formed in furrows with the cavities being staggered between adjacent rows. An arm spring biased downwardly carries a hub having spikes in planes laterally spaced apart with the spikes around the hub being staggered between the planes. Each spike is concave lo ...


7
Henry K Orthman, Jay Stombaugh: 180.degree. Folding tool bar. Orthman Manufacturing, Zarley McKee Thomte Voorhees & Sease, June 12, 1984: US04453601 (18 worldwide citation)

A 180.degree. folding tool bar for an agricultural implement is described including a main frame having wing sections pivotally mounted on the ends of the main frame which are movable between field and transport positions. A hydraulic cylinder is positioned within the main frame at each end thereof ...


8
Henry K Orthman: Forklift attachment for moving three-point mounted equipment. Orthman Manufacturing, Zarley McKee Thomte Voorhees & Sease, December 27, 1977: US04065013 (13 worldwide citation)

The spaced apart arms of a forklift vehicle are slidably received in sleeves mounted on the lower ends of spaced apart legs carried on a cross member. Upwardly facing hooks are provided on each of the legs and cross member for detachable engagement with hitch pins on a three-point mounted implement. ...


9
Henry K Orthman: Cotton root cutter and shredder. Orthman Manufacturing, Zarley McKee Thomte Voorhees & Sease, May 13, 1986: US04588033 (10 worldwide citation)

An apparatus for uprooting and shredding cotton plants after harvest includes a below ground cutting blade having a forward cutting edge inclined rearwardly and to one side of the implement, which blade cooperates with an oppositely inclined above ground trash bar to uproot cotton plants and deposit ...


10
Henry K Orthman: Collapsible guide rod assembly for a tractor guidance system. Orthman Manufacturing, Zarley McKee Thomte Voorhees & Sease, May 4, 1993: US05207739 (6 worldwide citation)

A guide rod assembly is mounted on the front end of a tractor with the guide rods closely adjacent the front wheels and the crop rows to transmit steering signals to a steering guidance system. The pair of guide rods pivot from a downwardly extending parallel position upwardly toward a raised closed ...