A ground scraper (10) including: a bowl (12) for holding excavated ground material; a cutting edge (14) mounted at a mouth of the bowl (12) for excavating the ground material; an apron (26) pivotally mounted to the bowl (12) for closing the mouth of the bowl (12); and a hitch assembly (28) including a draft tube (32) and a pair of draft arms (34) extending from the draft tube (32) and pivotally coupled to the bowl (12). Each draft arm (34) including a first portion (36) angled with respect to a second portion (38).

A tractor attachment mountable on a loader boom of a tractor and a tractor attachment kit. In one embodiment, the tractor attachment is a grapple assembly, and the grapple assembly kit includes a mounting assembly, a plurality of clamping units, and a plurality of support units. The clamping units and the support units are removably mountable on the mounting assembly and may be arranged in different combinations on the mounting assembly. Such combinations may range from a single clamping unit mounted on the mounting assembly to a mixture of clamping units and support units mounted on the mounting assembly to several clamping units mounted on the mounting assembly. The clamping units may have alternative pivot points to permit jaws of the clamping unit to close at different speeds and with different forces. One or more fangs may be removably mounted on a clamping unit to enhance its grip.

The bucket lifting extension device may comprise a pair of mounting blocks and a bucket extension. The bucket lifting extension device may be an attachment for a bucket of a piece of equipment. As non-limiting examples, the piece of equipment may be a front end loader such as a skid steer loader or a tractor. The bucket extension may enlarge the bottom of the bucket such that the bucket may easily lift bulky items. The pair of mounting blocks may couple to a bucket rear wall in order to retain the bucket extension on the bucket. The bucket extension may slide into a gap located between the pair of mounting blocks and the bucket rear wall. The bucket extension may be detachable by removing capture nuts, pivoting hinges located on the pair of mounting blocks, and sliding the bucket extension out from under the pair of mounting blocks.

A curb sweeping apparatus for releasable engagement with a blade of a blade-carrying machine such as a motor grader, for example, the blade being arcuate in cross-section and having a top edge and a bottom cutting edge, the sweeping apparatus being comprised of a height and depth adjustable mounting assembly, a carrier frame fixedly connected to the mounting assembly, and a motor-driven rotary sweeper comprised of a sweeper brush assembly rotatably mounted to the carrier frame and a sweeper motor mounted to the carrier frame and operably coupled to the sweeper brush assembly.

There is provided an electromagnet control apparatus that continuously attracts crushed pieces of metals with the core of a magnetized electromagnet without immediately releasing the attracted pieces in a composite operation of a construction machine. The electromagnet control apparatus includes a control unit that controls a demagnetized state, a magnetized state, or a counter-magnetized state of an electromagnet. Until the end of a first threshold time t.sub.th1 from a transition to the demagnetized state from the magnetized state, the control unit ignores a turn-on voltage for turning on first transistors (a first transistor, a fourth transistor) and turns on the first transistors after a lapse of a second threshold time that is shorter than the first threshold time. The demagnetized state and the magnetized state are repeated until the end of the first threshold time t.sub.th1 from the transition to the demagnetized state.

A mounting assembly for a chock block for a wheel of a machine is provided. The mounting assembly includes a first bracket configured to be attached to a pocket of a ripper of the machine. The first bracket includes a central plate and two side plates extending from the central plate. The mounting assembly also includes a second bracket configured to be attached to the first bracket. The second bracket includes a pair of support rods extending therefrom. The pair of support rods is configured to removably mount the chock block thereon.

Disclosed are hay bale spikes for tractors used to carry hay bales. A hay bale carrying system includes a frame attachable to a tractor. The frame includes a first spike rigidly connected and a second spike movably attached parallel to the first spike, where the second spike is movable to a position that is not parallel to the first spike. An opening in the frame may position a pin to matingly accept the second spike that includes a lever arm on the opposite side of the pin from the spike. The lever arm may include a connector near its end connectable to a hydraulic cylinder such that expansion and contraction of the hydraulic cylinder provides leverage through the pin to the second spike to move the second spike from a first parallel position relative to the first spike to a second non-parallel position.

The invention relates to a mounting device (1, 1) for mounting a fork, comprising at least one fork blade (2), on a machine bucket (3), wherein the mounting device (1, 1) comprises at least one pre-tensioned plate (4) arranged on said at least one fork blade (2), and at least one upper tension stop (6) against which said at least one pre-tensioned pressure plate (4) is pre-tensioned for mounting the machine bucket (3) by clamping the bucket (3) between said at least one pre-tensioned plate (4) and said at least one upper tension stop (6). The invention also relates to a mounting method for mounting a fork (2) on a bucket (3).

An implement system for a machine includes a primary blade and a secondary blade coupled to the primary blade through a linkage mechanism such that the secondary blade is trailing the primary blade. The implement system includes an actuator which controls a movement of the secondary blade. The implement system includes at least one position sensor which generates signals indicative of a position of the primary blade and a position of the secondary blade. The implement system further includes a controller which is in communication with the primary blade, the secondary blade and the position sensor. The controller receives the signals indicative of the position of the primary blade and the position of the secondary blade. The controller operates the actuator to control the movement of the secondary blade based on the position of the primary blade and secondary blade.

The present invention relates to an apparatus for laying a pipe in a trench, the apparatus comprising a placement assembly (2) for placing the pipe in the trench; a compactor mechanism (3) for compacting of the aggregate about the pipe.