A pressure contained car cannon for the launching and/or flipping of vehicles, or other large-scale props, for use in motion picture action sequences. The device consists of a car canon having a barrel, a cannon foot and a piston. By way of pneumatic pressure, force is achieved by transferring energy from the piston to the cannon foot, resulting in a push force which expels the cannon foot from the cannon barrel, launching the vehicle on its desired trajectory while keeping most all vapor and smoke contained within the barrel itself.

A self-trailering grain bagging machine on four wheels for storing grains and seeds inside a silo bag. The machine has a grain receiving hopper within which a compression auger encased in an auger tube. The auger is driven by mechanical means powered from a tractor's power take-off. The machine is mounted on a frame fitted with paired crossmembers at its left and right hand sides. Each crossmember is mounted upon a pair of wheel supports. The wheel supports are capable of gyrating relative to the crossmembers. The wheel supports carry one wheel that wheel rotates along with said wheel support. A work tongue is attached to the front side of the frame. The work tongue pivots relative to a horizontal axis. A transport tongue is attached to one crossmember wherein the wheels remain aligned in the direction intended for work and when turning said wheel supports by 90 degrees.

A vehicle having a thick matter pump has multiple supporting devices, a rotatable mast assembly with part-mast members, and a hydraulic drive assembly with hydraulic drives for the supporting devices and the mast assembly. A valve assembly is provided for the hydraulic drive assembly. The valve assembly has a group of proportional valves and a group of switching valve devices which are each connected to at least one hydraulic drive of the supporting devices or the part-mast members. The switching valve devices are connected downstream of the proportional valves. Exactly one switching valve device is supplied by exactly one proportional valve and is connected downstream of exactly one proportional valve such that outputs of the proportional valves lead exclusively to inputs of the switching valve devices.

A vehicle having a thick matter pump has multiple supporting devices, a rotatable mast assembly with part-mast members, and a hydraulic drive assembly with hydraulic drives for the supporting devices and the mast assembly. A valve assembly is provided for the hydraulic drive assembly. The valve assembly has a group of proportional valves and a group of switching valve devices which are each connected to at least one hydraulic drive of the supporting devices or the part-mast members. The switching valve devices are connected downstream of the proportional valves. Exactly one switching valve device is supplied by exactly one proportional valve and is connected downstream of exactly one proportional valve such that outputs of the proportional valves lead exclusively to inputs of the switching valve devices.

A vehicle having a thick matter pump has multiple supporting devices, a rotatable mast assembly with part-mast members, and a hydraulic drive assembly with hydraulic drives for the supporting devices and the mast assembly. A valve assembly is provided for the hydraulic drive assembly. The valve assembly has a group of proportional valves and a group of switching valve devices which are each connected to at least one hydraulic drive of the supporting devices or the part-mast members. The switching valve devices are connected downstream of the proportional valves. Exactly one switching valve device is supplied by exactly one proportional valve and is connected downstream of exactly one proportional valve such that outputs of the proportional valves lead exclusively to inputs of the switching valve devices.

A vehicle having a thick matter pump has multiple supporting devices, a rotatable mast assembly with part-mast members, and a hydraulic drive assembly with hydraulic drives for the supporting devices and the mast assembly. A valve assembly is provided for the hydraulic drive assembly. The valve assembly has a group of proportional valves and a group of switching valve devices which are each connected to at least one hydraulic drive of the supporting devices or the part-mast members. The switching valve devices are connected downstream of the proportional valves. Exactly one switching valve device is supplied by exactly one proportional valve and is connected downstream of exactly one proportional valve such that outputs of the proportional valves lead exclusively to inputs of the switching valve devices.

A jack assembly for mounting on the hitch arm of a wheeled implement frame supports the wheeled frame relative to a ground surface upon which the wheeled frame is engaged. A jack frame of the assembly is fixedly mounted onto the implement frame and pivotally supports a leg for movement between a raised transport position and a lowered position to support the implement frame elevated above the ground when stationary. A first catch on a retainer member pivotal on the jack frame cooperates with a second catch on a link member pivotal on the leg. A linear actuator coupled between the jack frame and the link member acts to both (i) release the catches and extend the leg towards the lowered position, and (ii) engage the catches and raised the leg towards the raised position.

A jack assembly for mounting on the hitch arm of a wheeled implement frame supports the wheeled frame relative to a ground surface upon which the wheeled frame is engaged. A jack frame of the assembly is fixedly mounted onto the implement frame and pivotally supports a leg for movement between a raised transport position and a lowered position to support the implement frame elevated above the ground when stationary. A first catch on a retainer member pivotal on the jack frame cooperates with a second catch on a link member pivotal on the leg. A linear actuator coupled between the jack frame and the link member acts to both (i) release the catches and extend the leg towards the lowered position, and (ii) engage the catches and raised the leg towards the raised position.

A level indication system for a vehicle includes a control system. The control system is configured to acquire stability data regarding a stability characteristic of the vehicle at a current location, determine whether the stability characteristic is within an operational range, provide a first indication that the vehicle is reconfigurable at the current location into an operable state in response to determining that the stability characteristic is within the operational range, and provide a second indication that the vehicle is not reconfigurable at the current location into the operable state in response to determining that the stability characteristic is within a nonoperational range.

A level indication system for a vehicle includes a control system. The control system is configured to acquire stability data regarding a stability characteristic of the vehicle at a current location, determine whether the stability characteristic is within an operational range, provide a first indication that the vehicle is reconfigurable at the current location into an operable state in response to determining that the stability characteristic is within the operational range, and provide a second indication that the vehicle is not reconfigurable at the current location into the operable state in response to determining that the stability characteristic is within a nonoperational range.