A system for performing interactions within a physical environment including a robot base that undergoes movement relative to the environment, a robot arm mounted to the robot base, the robot arm including an end effector mounted thereon and a tracking system that measures a robot base position indicative of a position of the robot base relative to the environment. A control system acquires an indication of an end effector destination, and repeatedly determines a robot base position using signals from the tracking system, calculates an end effector path extending to the end effector destination at least in part using the robot base position, generates robot control signals based on the end effector path and applies the robot control signals to the robot arm to cause the end effector to be moved along the end effector path towards the destination.

The invention relates to a replaceable blade piece (1) of a working cylinder of a screen crusher, which as viewed from the side is substantially T-shaped. The blade piece has a frame portion (2) forming the vertical shaft of the T and a blade portion (3) forming the horizontal arm of the T, the longitudinally opposite front surfaces of which form the actual work surfaces (4). The frame portion (2) has a through hole (5) extending in the longitudinal direction of the blade portion (3). Into the frame portion (2) is formed, on the opposite sides containing the hole (5), a channel-like section (6), which extends in the vertical direction of the frame portion (2), between the edge areas (8, 9) of the side with the hole (5). The invention further relates to a replaceable blade piece holder (11) of a working cylinder of a screen crusher, said holder having a U-shaped frame portion comprising arm portions (12, 13), through which extends a longitudinal hole (15) of the frame portion, and a bottom portion (14) with a curved bottom connecting the arm portions (12, 13). On the opposite surfaces of the arm portions (12, 13), onto their middle area is formed a bulge (16), which extends in the vertical direction of the arm portion, travelling at the hole (15).

A combination bit and bit holder assembly includes a bit holder having a forward body portion and a shank. The forward body portion includes an upper end and a lower end. An insert is mounted in the bore of the upper end of the body portion. The insert also includes a central bore that receivingly retains a receiving cup. The receiving cup includes a bottom portion and an annular flange that extends from the bottom portion and defines a hollow forward portion. A bit is mounted in the hollow forward portion of the receiving cup which is configured to have a ductility that provides impact absorption to the bit.

A tool adapter comprises a body including at least one elongated portion defining a longitudinal axis, a first end and a second end disposed along the longitudinal axis, a flange disposed between the first and second ends along the longitudinal axis, and an exterior surface extending along the longitudinal axis, and a collar portion defining a collar outer surface and the body defines a first groove disposed adjacent the first end extending along the longitudinal axis on the outer collar surface along the majority of the longitudinal length of the collar portion.

A pick tool comprising a strike tip and a pick tool body, the pick tool body including a non-rotating strike tip at a first end of the pick tool body. A shaft is provided at a second end of the pick tool body, the shaft being configured to pass through an opening in a surface of a pick tool holder, the shaft being configured in use to be non-rotationally attached to the pick tool holder. The shaft projects from a pick tool abutment surface such that, when the pick tool is attached to the pick tool holder, the abutment surface abuts the pick tool holder surface. The abutment surface has an aspect ratio between its length and width of between 1.5:1 and 3:1. The pick tool body comprises a leading edge and a trailing edge, the leading edge being, in use, the edge that first contacts a formation, the trailing edge having an angle of less than 18 between a main axis of the pick tool and an axis from the strike tip to the abutment surface at the trailing edge.

The invention relates to a method for setting a screw, which has an external thread in a front region and a drive in a rear region for introducing a torque into the screw, in a drilled hole in a substrate of a mineral material, in which method an internal thread is produced in the drilled hole by means of a threaded drill provided with a cutting thread, and then the screw is introduced into the drilled hole and in so doing the external thread of the screw is screwed into the internal thread, produced by the threaded drill, in the drilled hole. According to the invention, there is provision that the outside diameter of the cutting thread of the threaded drill is smaller than the outside diameter of the external thread of the screw. The invention further relates to packages comprising object for carrying out such method.

A chisel holder for a ground processing machine includes a base portion including a chisel receiver and a holder receiver. The chisel receiver includes a chisel introduction region for receiving a threaded shaft of a chisel. The holder receiver is configured to receive an internally threaded nut. The holder receiver includes at least one retention face configured to secure the nut against rotation at a peripheral side or the nut.

In one aspect of the present invention, a high impact resistant tool comprises a sintered polycrystalline diamond body bonded to a cemented metal carbide substrate at an interface, the body comprising a substantially pointed geometry with an apex, the apex comprising a curved surface that joins a leading side and a trailing side of the body at a first and second transitions respectively, an apex width between the first and second transitions is less than a third of a width of the substrate, and the body also comprises a body thickness from the apex to the interface greater than a third of the width of the substrate.

A road surface crushing apparatus includes: a cylinder-shaped drum configured to be rotatably installed on one side of a main transportation means; a plurality of crushing units each formed to protrude from one side of the outer circumferential surface of the drum in an outward direction, and configured to crush a road surface to be repaired; and one or more cutting units each formed to extend from one side of one of both ends of the outer circumferential surface of the drum in a direction away from the outer circumferential surface of the drum, and configured to cut a boundary surface between the road surface to be repaired and a road surface not to be repaired; wherein when the drum is rotated, both a crushing operation of the crushing units and a cutting operation of the cutting units are simultaneously performed.