Abstract: A device system with a device stand, a drilling device arranged displaceably on the device stand for carrying out drilling and a feed device for displacing the core drilling device along the device stand. The feed device has a manual feed device, designed for example as a handwheel or a lever, and the device system has a control device for evaluating measured values. The feed device or the manual feed device e has a sensor for determining measured values, the measured values being used for evaluation and transmitted to the control device, and a starting point and/or an end point of the drilling being detected by the control device through a sudden change in drilling parameters. In a second aspect, the invention relates to a method for determining a depth of a bore, the bore being produced with the proposed device system.

Abstract: A device for covering a cut gap which can be produced by a machine tool. The device can be connected to a dust suctioning device so that the dust produced while working with the machine tool can be removed from the working area of the machine tool using the dust suctioning tool. A second aspect of the invention relates to a system consisting of at least two proposed devices. Another aspect of the invention relates to a method for suctioning dust from a working region of a machine tool. The device includes sealing caps which can be connected to a dust suctioning device via suction connecting pieces. Furthermore, the sealing caps are used to seal the working area in which the working process of the machine tool is carried out.

Abstract: A deflection roller (32) for a deflection roller package (33) of a wire saw (1), having a wheel (32), a pivot bearing (42) and a sealing element (55). The wheel (32) has a raceway (45) along the periphery thereof for guiding a saw wire (3) of the wire saw (1). The pivot bearing (42) is coaxially inserted in the wheel (32). An outer sleeve (51) protrudes from a lateral surface (49) of the wheel (32). An inner sleeve (50) protrudes from a lateral surface opposite the one lateral surface (49). A radius (53) of the inner sleeve (50) is smaller than a radius (52) of the outer sleeve (51). The sealing element (55) is placed on the outer sleeve (51) or inserted into the inner sleeve (50).

Abstract: A wire saw 1 according to the invention for an endless saw wire 3 has a housing 6, a wire drive 9, and a wire store 7. The wire drive 9 is for pulling the saw wire 3 in a circulating direction 8. The wire store 7 has a first package 31 of deflection rollers 32 and a second package 33 of deflection rollers 32. The second package 33 is mounted so as to be displaceable with respect to the first package 31 along a direction 14 in order to increase a length of the saw wire 3 stored on the wire store 7. A feed device 38 exerts a feed force on the second package 31 in the direction 14. The wire store 7 is arranged downstream of the wire drive 9 in the circulating direction 8. The wire saw pulls the saw wire 3 in the circulating direction 8, resulting in a tensile stress on the saw wire 3 running into the wire saw 1. By contrast, the saw wire 3 running out of the wire saw 1 is largely without tension.

Abstract: A pivotable wire deflector 19 for a saw wire 3 of a wire saw 1 has a deflection roller 32, a pivot joint 60 and a clamping and spreading mechanism. The defection roller 32 has a running groove 45 for guiding the saw wire 3 of the wire saw 1. The pivot joint 60 has a rotary bearing block with a cylindrical receptacle 65, and a tube 63 which is arranged so as to be rotatable in the cylindrical receptacle, wherein the deflection roller 57 is attached to the one of rotary bearing block 62 or tube 63. A clamp 70 is fastened to the rotary bearing block 62 and arranged so as to enclose the tube 63. A lever 68 can be moved manually between a first position and a second position.

Abstract: A system includes a power tool and a suction device that is connected to the power tool via a suction hose. The power tool is drivable into a wall or into a substrate by a negative pressure produced by the suction device. A method includes driving the power tool into the wall or into the substrate by using the negative pressure produced by the suction device that is connected to the power tool via the suction hose.

Abstract: A carriage (50) for a wall saw that includes a saw head and a motor-driven feed unit with a guide slide and a feed motor. The carriage is made up of a base frame (51) with a supporting frame (55) and a receiving plate (56), a guide frame (52) with a handle (58), and a chassis (53) with a first axle (64), a second axle (66), and at least three wheels (65, 67). At least one wheel (65) of the chassis (53) is designed to be connectable to a gearwheel (45) of the guide slide (26) in a force- and torque-transmitting manner with the aid of a connection device.

Abstract: A carriage (50) for a wall saw that includes a saw head and a motor-driven feed unit with a guide slide and a feed motor. The carriage is made up of a base frame (51) with a supporting frame (55) and a receiving plate (56), a guide frame (52) with a handle (58), and a chassis (53) with a first axle (64), a second axle (66), and at least three wheels (65, 67). At least one wheel (65) of the chassis (53) is designed to be connectable to a gearwheel (45) of the guide slide (26) in a force- and torque-transmitting manner with the aid of a connection device.

Abstract: A protection device for a rope saw assembly (5) includes at least two, telescopically displaceable relative to each other, cover members (12, 13) having each a circular cross-section, an extending along a longitudinal axis receiving space (14) for the saw rope (8), and a longitudinally extending opened slot (15, 16), and provided each with a securing device (18, 20) located on one end (17, 19) of each of the cover members (12, 13) for securing a respective cover member (12, 13) to a respective deflection roller (6, 7) of the rope saw assembly (5).

Abstract: A hand-held power tool for driving a cutting or grinding working tool (11) includes a running gear (13) having a roller (15) and a support section (14) for supporting the roller (15), and a locking device (20) for locking the roller (15) against rotation relative to the support section (14).

Abstract: A deflection device for a rope saw assembly, includes a deflection roller (12; 52; 92); a stationary protective cover (13; 53, 93) surrounding art least some regions of the deflection roller (12; 52; 92); and at least one cover member (23; 63; 102, 103) pivotally arranged on the protective cover (13; 53, 93) surrounding at least some regions of the deflection roller, and displaceable along a path radially spaced from the axle (15; 55; 95) of the deflection roller (12; 52; 92).

Abstract: A hand-held power tool for driving a working tool (1) includes a drive belt (3), first and second arms (5a, 5b) longitudinally displaceable relative to each other and carrying respective deflection rollers (6) of the drive belt (3), a belt tensioning device (4) located between the first and second arms (5a, 5b) and including a spring (8) preloaded against the first arm (5a), and a displaceable pressure piston (9) located between the spring (8) and the second arm (56).

Abstract: A hand-held power tool for driving a disc-shaped working tool (13) includes a belt drive (15) for driving the working tool (13), a belt cover (21; 41) for at least partially covering the belt drive (15) and having, at a belt cover free end (23; 43) remote from an outer housing (14) of the power tool, a circumferential wall section (24; 44), and a separate cover element (31; 51) for the free end (23; 43) of the belt cover (21; 41) and integrated in the circumferential wall section (24, 44) at the belt cover free end (23; 43).

Abstract: A hand-held power tool for driving a working tool (1) includes a drive belt (3), first and second arms (5a, 5b) longitudinally displaceable relative to each other and carrying respective deflection rollers (6) of the drive belt (3), a belt tensioning device (4) located between the first and second arms (5a, 5b) and including a spring (8) preloaded against the first arm (5a), and a displaceable pressure piston (9) located between the spring (8) and the second arm (56).

Abstract: A hand-held power tool for driving a cutting or grinding working tool (11) includes a running gear (13) having a roller (15) and a support section (14) for supporting the roller (15), and a locking device (20) for locking the roller (15) against rotation relative to the support section (14).

Abstract: A deflection device for a rope saw assembly, includes a deflection roller (12; 52; 92); a stationary protective cover (13; 53, 93) surrounding art least some regions of the deflection roller (12; 52; 92); and at least one cover member (23; 63; 102, 103) pivotally arranged on the protective cover (13; 53, 93) surrounding at least some regions of the deflection roller, and displaceable along a path radially spaced from the axle (15; 55; 95) of the deflection roller (12; 52; 92).

Abstract: A protection device for a rope saw assembly (5) includes at least two, telescopically displaceable relative to each other, cover members (12, 13) having each a circular cross-section, an extending along a longitudinal axis receiving space (14) for the saw rope (8), and a longitudinally extending opened slot (15, 16), and provided each with a securing device (18, 20) located on one end (17, 19) of each of the cover members (12, 13) for securing a respective cover member (12, 13) to a respective deflection roller (6, 7) of the rope saw assembly (5).

Abstract: A device for deflecting a saw cable (13) of a cable saw and having a support (1) and at least one deflection member (2) securable to the support (1) and having two support arms (6), between which a deflection roller (3) is rotatably supported, and two guide surfaces (18) formed in the region of the deflection member (2) projecting beyond the deflection roller (3) for preventing the saw cable (13) from falling off of the deflection roller (3).