Abstract: To set time difference to the starting time of excavation and scooping by setting the starting of the scooping with a bucket behind the starting of the excavation with a ripper in an excavation machine where the bucket and the ripper are equipped to an arm, and are manipulated to open and close with each other by expansion and contraction of a hydraulic cylinder. During the first half of the contracting process at a hydraulic cylinder, a pin mounted on a connecting link where a bucket and a ripper are connected moves through a slot formed on the bucket to make bucket delay in closing, and the bucket and the ripper close at the same time during the latter half of the contracting process.

Abstract: A system to remove a ram packer from a ram block is provided. In one embodiment, the system includes an extraction tool having opposing jaws configured to engage a ram packer installed in a ram block. The system may also include an actuator configured to move the opposing jaws to facilitate separation of the ram packer from the ram block. Additional systems, devices, and methods are also disclosed.

Abstract: A hydraulic jack including a frame and a pump connected to the frame. The pump includes a rod, a housing, a piston and a plurality of valves. The rod has a cross-sectional area. The housing has an end through which the rod slides. The piston is associated with said rod, with the piston establishing a rod side chamber and a piston side chamber within the housing. The piston having a cross-sectional area. The plurality of valves each are fluidly connected to the rod side chamber and/or the piston side chamber. The piston, the rod and the valves are arranged to provide a first hydraulic fluid flow associated with the cross-sectional area of the piston until a predetermined pressure is reached and a second hydraulic fluid flow associated with the cross-sectional area of the rod after the predetermined pressure is reached.

Abstract: A hand operated tool for extracting an embedded elongated object, includes: a) an elongated, movable first handle member with a first, upper end portion divided into two matching legs separated by an opening; b) a corresponding second handle member with a first jaw member and a first, upper end extending through the leg opening, the second handle member being pivotally attached to both legs; c) a floating head portion pivotally attached to the first and second legs, the floating head portion including a second jaw member and an adjacent, upper curved edge; and d) two matching lever bars facing one another from opposite sides of the tool, each being pivotally connected to the second handle member and to the floating head portion; and wherein the second jaw member is engaged against the first jaw member in a closed tool position, and disengaged from the first jaw member in an open tool position.

Abstract: A pry bar with a built in hammer includes a slide bar including an elongated linear section, a first pry section at a first end of the elongated linear section and angled relative thereto, the first pry section including a front edge with a first notch therein, a side edge which meets the front edge at a corner, a second notch at the side edge immediately adjacent the corner, and a nail entrapment notch in the side edge, and a second pry section at a second end of the elongated linear section and angled relative thereto, the second pry section including a front edge with a notch therein; a first stop fixed to the elongated linear section adjacent the first pry section; a second stop fixed adjacent to the elongated linear section adjacent the second pry section; and a slide hammer slidably mounted on the elongated linear section between the first and second stops in order to impact against the first stop.

Abstract: A hydraulic spike puller comprising a frame with a chute, a hydraulic drive section connected to the frame, and a spike contacting section connected to the hydraulic drive section and movably located in the chute. The improvement comprises the spike contacting section comprising two jaws pivotably connected to each other and a friction system extending from the jaws and contacting opposite interior sides of the chute. The jaws each have a spike contacting claw section which, when the jaws are in an open position, have a back surface adjacent an interior side of the chute to block an area between the chute and the back surface. The claw sections have substantially non-curved bottom faces which, when the jaws are in the open position, can push a spike out of the chute. The claw sections are shaped to prevent a spike from being caught between the chute and the back surfaces of the claw sections.

Abstract: A spike removing system for removing deeply embedded spikes from railroad tracks. The inventive device includes a housing having an open end, an upper hydraulic cylinder attached within an upper portion of the housing, a lower hydraulic cylinder having a plurality of opposing first jaws and second jaws pivotally attached thereto, and a plunger head attached to the lower hydraulic cylinder for closing and separating the opposing first jaws and second jaws with respect to one another. The first and second jaws are preferably S-shaped and include a channel for allowing the opposing jaw to slidably move with respect to the other jaw. The jaws project downwardly when closed upon a spike, thereby digging into the tie to ensure proper engagement with the head of a deeply embedded spike.

Abstract: An extractor (30) for removing string clamping plates (26) from Floyd Rose tremolos (20) has a tongue (36) with a pin (38) which can engage hole (27) in plate (26) so that threaded element (42) when rotated will engage saddle surface (23) and apply upward force on tongue (36) and pin (38) and thus pull plate (26) into cylindrical extension (46) during removal of the string clamping plate.

Abstract: A device for extracting nails or the like from a workpiece. The extractor includes a body member having a first end and a second end; a plurality of leg members, each of the leg members having a first end and a second end, the first end of each of the leg members being attached to the second end of the body member; and a collar slidably positioned over at least a portion of the leg members for causing the second ends of the leg members to be urged inwardly. The extractor is preferably machined or otherwise constructed out of metal.