Abstract: A trailer comprising a main trailer portion having a ramp tail hingedly secured to the rearward end thereof. A first axle and suspension system is positioned beneath the main portion of the trailer forwardly of the hinge point of the ramp tail. A second axle and suspension system is positioned rearwardly of the first axle and is located beneath the hinge point of the ramp tail when it is desired to pivotally move the ramp tail. During highway usage, the second axle may be slidably moved beneath the ramp tail so as to increase the distance between the two axles.

Abstract: A main tail lock for a hydraulic tail trailer comprising a pair of spaced-apart locks which are pivotally secured to the frame of the tail and which are pivoted between locked and unlocked positions by a lock cylinder. When the locks are in their unlocked position, the tail cylinders for the tail may raise or lower the tail of the trailer. When the locks are in their locked position, the tail cylinders are prevented from retracting thereby preventing the lowering of the tail with respect to the main frame of the trailer.

Abstract: A low-angle tilt trailer comprising a forward frame section which is adapted to be connected to a prime mover and having a rear frame section selectively longitudinally slidably mounted thereon. A wheel assembly is mounted at the rearward end of the rear frame section. A hydraulic cylinder interconnects the forward frame section and the rear frame section to enable the rear frame section and the wheel assembly mounted thereon to be moved between rearward and forward positions relative to the front prime section. The trailer bed is pivotally connected to the rear frame section to enable the trailer bed to be tilted so that the rearward end of the trailer bed can be brought into ground engagement. The rear frame section may be moved forwardly relative to the front frame section and the trailer bed tilted upwardly to approximately an 81/2.degree. angle to facilitate the loading and unloading of equipment.

Abstract: A multiple fold ramp tail for a trailer is described comprising a wheeled frame having rearward and forward ends with the forward end of the frame being suitable for connection to a prime mover such as a truck or the like. A multiple fold ramp tail is pivotally connected to the rearward end of the frame and comprises a main ramp portion, first stage ramp portion and a second stage ramp portion. The forward end of the main ramp portion is pivotally connected to the rearward end of the frame and the forward end of the first stage ramp portion is pivotally connected to the rearward end of the main ramp portion. The second stage ramp portion is pivotally connected at its forward end to the rearward end of the first stage ramp portion. The first and second stage ramp portions are normally in a stored position wherein they are folded upon themselves beneath the lower rearward end of the main ramp portion.