A heavy vehicle and machinery trailer having: (i) a trailer base with wheels and suspension; (ii) a trailer bed supported on the trailer base by the suspension; (iii) loading ramps connected to the trailer bed where the suspension, or other methods such as hydraulically operated landing legs, are adapted to allow an operator to alter the pitch and/or roll angle of the trailer bed relative to the ground surface and wherein where the loading ramps are adapted to have varying lengths such that the ramps can be evenly pitched when they are extended to the ground on a sloped surface. The trailer has a hydraulic system under the control of an electrical controller which is operated by a user. The electrical controller has a preset matrix of safe loading and unloading parameters which it uses to determine whether the sensed state of the trailer is safe for loading or unloading.

An air powered landing gear supports a front end a trailer when it is deployed. A cylindrical rod is secured to an underside of the trailer, and a collar assembly rotates around the rod. A leg assembly is rigidly affixed to and extends downwardly from the collar assembly. A pneumatic cylinder extends between the trailer and the leg assembly and is configured to rotate the landing gear from a deployed position, wherein the landing gear supports the front end of the trailer, to a stowed position, wherein the landing gear is rotated upwardly toward the trailer.

An air powered landing gear supports a front end a trailer when it is deployed. A cylindrical rod is secured to an underside of the trailer, and a collar assembly rotates around the rod. A leg assembly is rigidly affixed to and extends downwardly from the collar assembly. A pneumatic cylinder extends between the trailer and the leg assembly and is configured to rotate the landing gear from a deployed position, wherein the landing gear supports the front end of the trailer, to a stowed position, wherein the landing gear is rotated upwardly toward the trailer.

Embodiments herein provide a vehicle-mounted gas turbine generator set, including: a chassis vehicle, a main cabin body and at least one of an air intake filter system, a ventilation filter system and an exhaust system. The chassis vehicle includes a main beam and an operator cabin. The operator cabin is located at a first side of the main beam in a first direction. The main cabin body defines a main accommodation space. A gas turbine and a generator connected with each other, and an electrical system connected with the gas turbine and the generator, are arranged in the main accommodation space. In a second direction perpendicular to the first direction, the main accommodation space is located between the main beam and the at least of the air intake filter system, the ventilation filter system and the exhaust system.

Embodiments herein provide a vehicle-mounted gas turbine generator set, including: a chassis vehicle, a main cabin body and at least one of an air intake filter system, a ventilation filter system and an exhaust system. The chassis vehicle includes a main beam and an operator cabin. The operator cabin is located at a first side of the main beam in a first direction. The main cabin body defines a main accommodation space. A gas turbine and a generator connected with each other, and an electrical system connected with the gas turbine and the generator, are arranged in the main accommodation space. In a second direction perpendicular to the first direction, the main accommodation space is located between the main beam and the at least of the air intake filter system, the ventilation filter system and the exhaust system.

An integrated vehicle jacking assembly includes a plurality of jacks that is each coupled to a bottom side of a vehicle. Each of the jacks is actuatable into an extended position for lifting a respective driver's side or passenger's side of the vehicle upwardly thereby facilitating tires on the respective driver's side or passenger's side of the vehicle to be removed and replaced. A control unit is positioned within the vehicle and the control unit is operationally coupled to each of the jacks. The control unit actuates one or both of the jacks between the extended position and the retracted position. A plurality of wheel chocks is provided for inhibiting the vehicle from rolling when the vehicle is lifted.

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.

An embodiment includes first and second brackets to respectively couple to a trailer bed; first and second arms to respectively couple to the first and second brackets; wherein (a) in a first orientation the first arm is to couple to the bed non-orthogonally with the bed raised a first distance and with the first arm not extending below wheels of the trailer; (b) in a second orientation the first arm is to couple to the bed orthogonally with the bed being raised a second distance which is less than the first distance and with the first arm extending to a level of the bottom of the wheels, and (c) in a third orientation the first arm is to couple to the bed orthogonally with the bed being raised a third distance, which is between 0 inches and the second distance, and with the first arm extending below the wheels.

A system for optimizing a machine learning model. a machine learning model that generates predictions based on at least one input feature vector, each input feature vector having one or more vector values; and an optimization module with a processor and an associated memory, the optimization module being configured to: create at least one slice of the predictions based on at least one vector value, determine at least one optimization metric of the slice that is based on at least a total number of predictions for the vector value, and optimize the machine learning model based on the optimization metric.