Abstract: A work machine includes a vehicle body, a blade supported by the vehicle body, a pair of first hydraulic cylinders, a pair of second hydraulic cylinders, a pair of lift stroke sensors and a control unit. The first hydraulic cylinders are configured to lower and raise the blade. The second hydraulic cylinders are configured to tilt the blade forward and backward and left and right. The lift stroke sensors are configured to detect stroke amounts from the pair of first hydraulic cylinders, respectively. The control unit is configured to start actuating the pair of second hydraulic cylinders when the stroke amounts of the pair of first hydraulic cylinders match. The control unit is configured to stop actuating the pair of second hydraulic cylinders based on a magnitude relation between a prescribed threshold and a difference in the stroke amounts of the pair of first hydraulic cylinders.

Abstract: An earth working apparatus includes a working implement having a first end and a second end. The earth working apparatus also includes a first support supporting the working implement, where the first support also has a first end and a second end. The earth working apparatus further includes a first arm connecting the first end of the working implement to the first end of the first support, and a second arm connecting the second end of the working implement to the second end of the first support. A second support is pivotally coupled with the first support by a torsion coupler. The first arm and the second arm can be pivotally coupled with the first support by a torsion coupler. The second support can be connected to a third support and configured to articulate with respect to the third support between a generally horizontal working orientation and a transport orientation.

Abstract: The present device is generally a stabilizer bracket for small to mid-sized skid steer vehicles used to grade earth using a dozer blade in conjunction with remote grade control equipment (such as laser automation or other automated leveling system). The device is most suited to skid steer vehicles capable of using a variety of interchangeable front end accessories in addition to a dozer blade.

Abstract: A land leveling device for leveling uneven surfaces. The land leveling device generally includes a frame adapted to be removably attached to a tractor. The frame will generally include a rear support, a first side support extending in a forward direction from a first end of the rear support and a second side support extending parallel to the first side support from a second end of the rear support. A central rod will preferably extend forward from a central point on the rear support parallel to and between the first side support and second side support. A pair of leveling members are each fixedly attached to the side supports at their respective ends and pivotally attached to the central rod. As the land leveling device passes over terrain, the leveling members automatically pivot about the central rod to adjust for uneven surfaces.

Abstract: An operator controllable machine is retrofitted to be operator controlled or to be automatically controlled. An electrical joystick output is provided by a manually actuated joystick control, including a joystick, to a machine control in the manually controlled machine. An interface is added between the joystick control and the machine control to permit an external source, such as a GPS receiver or a laser receiver, to apply an electrical automatic control output to the machine control, as well. The interface includes a number of optical isolation circuits and a microprocessor. The isolated microprocessor output is supplied to the machine control, which produces valve control signals to control the hydraulic valves of the machine. The application of hydraulic fluid to the hydraulic cylinders of the machine is then controlled by either the joystick control output or the automatic control output.

Abstract: The present device is generally a stabilizer bracket for small to mid-sized skid steer vehicles used to grade earth using a dozer blade in conjunction with remote grade control equipment (such as laser automation or other automated leveling system). The device is most suited to skid steer vehicles capable of using a variety of interchangeable front end accessories in addition to a dozer blade.

Abstract: A system is provided for positioning a work implement. The system has at least one actuator for actuating a movement of the work implement. In addition, the system has at least one sensor associated with the at least one actuator and configured to sense at least one parameter indicative of an orientation and a position of the work implement. The system also has at least one ground inclination sensor configured to sense a parameter indicative of an inclination of a surface of the ground.

Abstract: A multi-purpose working device comprises a rear frame, a front frame, a central part connecting the rear frame to the front frame, and a tool-maintaining device connected to the central part by an adjusting system, such that said tool-maintaining device can pivot in an essentially perpendicular manner in relation to the longitudinal axis and essentially parallel to the base counter to the central part. The central part comprises at least one stationary part and another part which can be displaced counter thereto, such that the displaceable part can be displaced, essentially, in the longitudinal direction in relation to the stationary part. The front frame comprises a front wheel which can rotate about an angle range of at least 120 degrees, preferably at least 180 degrees, a hydraulic control which acts upon the front wheel for directional control, and a hydraulic drive which is used to drive the front wheel.

Abstract: An ice resurfacing machine laser control is used to optimize the ice layer on an artificial ice track, such as an ice hockey rink and is adapted for use in ice resurfacing machines. The thickness of an ice layer is optimized with a beam for a laser transmitter. The ice resurfacing machine comprises a laser receiver and mechanisms to regulate the elevation of the scraper blade.

Abstract: A scraping device, a system and a method for collecting a material are provided. The scraping device may have a bowl having a first end and a second end. A lip may be positioned at the first end and may cover an opening at the first end. In an embodiment, direct mounted cylinders may be attached to the lip and may move the lip to completely cover or uncover the opening. The scraping device may have a tongue mounted to the bowl having a triangular-shaped plate mechanism that may be used to raise and to lower a cutting edge attached to the bowl. Cylinders connected to the mechanism may be retracted or extended to raise or to lower the scraping device. A load within the scraping device may be lifted by force exerted from a barrel end of a cylinder, thus utilizing a maximum potential of the cylinder.

Abstract: A gearing arrangement for driving at least one working unit, especially a cutter arrangement, has a support unit (6) with a connection mechanism (45) coupling to a tractor (1). A gearbox housing (7) is pivotably supported around a pivoting axis (11) in the support unit (6). The gearbox housing (7) can be directly or indirectly connected to the working unit (38, 41). An input shaft (28) is pivotably supported within the gearbox housing (7) around a rotational axis (27). A connection mechanism (33) on the input shaft connects with a drive shaft (10). The input shaft (28) drives at least one output shaft (31), which is rotationally supported in the gearbox housing (7). The output shaft (31) may be connected to intermediate shaft (34, 39) to drive at least one working tool of the working unit.

Abstract: A method and apparatus for controlling a work implement movably connected to a work machine. An implement controller automatically controls simultaneous first and second control modes of operation assigned to the work implement. A sensor applies a signal to the implement controller indicating position of the work implement. The implement controller reverses the simultaneous first and second control modes assigned to the work implement upon detecting a predetermined movement of the work movement. The simultaneous first and second control mode assignments may also be changed by actuation of a manually actuatable device.

Abstract: The invention discloses a differential connecting rod and draft cable for an agricultural tillage device. The invention consists of a differential connecting rod which is positioned parallel to the center frame. The center frame is connected to the inner wing frame by a universal joint. The universal joint has a spherical bearing and a pivot. The pivot is positioned in a slot. The differential control rod positions the pivot in the slot. An ‘L’-shaped linkage and a spring assembly pivotally support the rod.

Abstract: A bogie is attached to a three point hitch of a tractor and serves to control the up and down movement of a scraper blade. The bogie comprises an articulated frame having a pair of spaced side rails each connected to a separate lower link of the hitch. An intermediate arm is supported by the side rails and has means for connection to the upper link of the hitch. A castor is mounted for swivelling in a wheel housing and is raised and lowered by means of an hydraulic actuator.

Abstract: Land leveling apparatus includes a leveling attachment drawn by a tractor with the attachment having pivotally connected side blade sections on a central blade section affording a substantially greater leveling capacity. The side blade sections fold up to reduce width during transport and have a power-driven linkage arrangement for each blade section that moves and positions the blade sections and locks them in the lowered working position, together with upper and lower level adjustments for the side blade sections. A hitch assembly facilitates quick coupling to a crossbar carried by the lower links of the tractor linkage and is pivotally joined to the central blade section so as to facilitate rear tractor wheel movement independently of the scraper blades.

Abstract: Land leveling apparatus includes a leveling attachment drawn by a tractor with the attachment having pivotally connected side blade sections on a central blade section affording a substantially greater leveling capacity. The side blade sections fold up to reduce width during transport and have a power-driven linkage arrangement for each blade section that moves and positions the blade sections and locks them in the lowered working position, together with upper and lower level adjustments for the side blade sections. A hitch assembly facilitates quick coupling to a crossbar carried by the lower links of the tractor linkage and is pivotally joined to the central blade section so as to facilitate rear tractor wheel movement independently of the scraper blades.

Abstract: The cutting angle or cutting depth of the blade of an earth-moving equipment such as a bulldozer is adjusted by a hydraulic pressure cylinder and the supply of pressurized liquid to and from the hydraulic pressure cylinder is controlled in accordance with the running speed of the bulldozer. In addition, the rate at which the cutting depth of the blade of the earth-moving equipment is adjusted is inversely proportional to the speed of the earth-moving equipment.

Abstract: This invention is directed to an apparatus for compacting snow for skiing and snowmobiling. It includes an elongated snow compacting member with means which permit its ends to move upwardly and downwardly so that when one end contacts an elevated snow surface that end automatically moves upwardly to substantially equalize the p.s.i. exerted by the snow compacting member against the snow which is being compacted. It also includes snow compacting wings which extend outwardly from and are pivotally secured to the central snow compacting section of the snow compactor and power means for rotating the wings upwardly. The outer ends of the wings are secured to the inner ends by shear bolts or pins so that when an outer end contacts a rigid object it falls away and is not damaged. Means is provided for adjusting the angle of attack of the bottom wall of the snow compacting element to the surface of the snow to vary the pressure exerted upon it.