Abstract: A propellant magazine for a propellant-operated setting tool and including a pocket foil (1, 11, 21) having a plurality of recessed, spaced from each other, pockets (2, 12, 22, 42) for receiving each a propellant (3, 13, 23), a cover foil (5, 15, 25) unreleasably connected with the pocket foil (1, 11, 21) for closing the pockets (2, 12, 22), and an electrically conducting strip (7, 17, 27, 37) associated with each pocket (2, 12, 22, 42) and having at least one contact point (8, 9, 18, 19, 28, 29, 31, 32, 38, 39).

Abstract: A cartridge for setting devices if formed of a pot-shaped plastics material cartridge housing (2), which has a surface (8) contacting the inner contour (12) of a cartridge chamber of the setting device. A sealing cover (3) closes off the housing (2) at its open end (4). The sealing cover (3) has a cylindrical section (6), which extends into the interior (5) of the housing (2) and expands under the pressure developed upon ignition of the cartridge, so that a positive connection results between the housing (2) and the sealing cover (3).

Abstract: A piston holder for a drive piston of a setting tool and including at least one clamp member (18; 24; 25; 36; 39; 40; 52; 58) that is constantly non-rigidly pressed against a circumference of the drive piston (8), and elements for supporting the at least one clamp member for an eccentric movement in a plane in which a central axis (10a) of the drive piston (8) is located.

Abstract: A piston holder for a drive piston (8) of a setting tool and including a circumferential groove (15) provided in a stationary, with respect to the setting tool, component of the setting tool and surrounding the drive piston (8), with the circumferential groove (15) becoming shallower in a drive-out direction of the drive piston (8), and an O-shaped helical tension spring (21) located in the circumferential groove (15) and concentrically surrounding the drive piston (8).

Abstract: A cartridge magazine for explosive powder charge-operated setting tools including a charge-receiving member (2, 12, 22) having a plurality of spaced from each other, charge-receiving chambers (3, 13, 23) for receiving propellant charges (6, 16, 26), respectively, and a bottom (1, 11, 21) for closing the charge-receiving chambers (3, 13, 23) and formed of a heat-releasing, fusible and current-conducting foil.

Abstract: A holder for a drive piston (8) of a setting tool, and including a return element (19) having a first end (21) that applies pressure to the drive piston (8), and a second end (22) spaced from the first end (21), and axial and radial stop elements (16-18) fixedly securable in the setting tool and against which the second end (22) of the return element (21) is displaceable and elastically deformed upon displacement of the drive piston (8) in the setting direction (20).

Abstract: A piston holder for a drive piston (8) of a setting tool and including a circumferential groove (15) provided in a stationary, with respect to the setting tool, component of the setting tool and surrounding the drive piston (8), with the circumferential groove (15) becoming shallower in a drive-out direction of the drive piston (8), and an O-shaped helical tension spring (21) located in the circumferential groove (15) and concentrically surrounding the drive piston (8).

Abstract: A piston holder for a drive piston (8) of a setting tool and including a braking element self-lockingly supportable on a drive piston body (10), and spring elements (21, 23; 27, 28) for applying different biasing forces to the braking element (17; 24-26) in respective opposite directions corresponding to a direction of displacement of the drive piston (8) for reducing self-locking forces with which the braking element (17; 24-26) is supported on the drive piston body (10).

Abstract: A piston holder for a drive piston of a setting tool and including at least one clamp member (18; 24; 25; 36; 39; 40; 52; 58) that is constantly non-rigidly pressed against a circumference of the drive piston (8), and elements for supporting the at least one clamp member for an eccentric movement in a plane in which a central axis (10a) of the drive piston (8) is located.

Abstract: A piston holder for a drive piston (8) of a setting tool and including a braking element self-lockingly supportable on a drive piston body (10), and spring elements (21, 23; 27, 28) for applying different biasing forces to the braking element (17; 24-26) in respective opposite directions corresponding to a direction of displacement of the drive piston (8) for reducing self-locking forces with which the braking element (17; 24-26) is supported on the drive piston body (10).

Abstract: An explosive powder charge-operated setting tool including a first part provided with a cartridge socket (3), an opposite second part having a mating surface (14) which partially covers an axial projection surface of the cartridge socket (3), a circular cut-out (7) provided adjacent to the first part, and at least one connection channel (13), and an annular sealing member (9) located in the circular cut-out (7) of the second part and displaceable parallel to a setting direction relative to the second part (2), with the sealing member (9) being supported on the first part outside of the cartridge socket (3), and with the at least one connection channel (13) extending from the cartridge socket (3) up to a working surface (16) of the sealing member (9) facing in a direction opposite to the setting direction.

Abstract: An explosive powder-actuated setting tool including a guide cylinder (1) having an inner bore (2); a drive piston (3) axially displaceable in the inner core (2); a cartridge socket (5) for receiving a cartridge, and a connection channel (4) connecting the cartridge socket (5) with the inner bore (2) of the guide cylinder (1), with the connection channel (4) having a mouth opening (9) adjoining the cartridge socket (5) and formed of a first, sharp-edged circumferential section (10) and a second circumferential section (11) provided with a radius.

Abstract: A high pressure gas operated setting tool and including guide cylinder, a fastening element guide (6) arranged, in a setting direction, in front of the guide cylinder and axially displaceable against a spring-biasing force in a direction opposite to the setting direction by a maximum amount (S), a drive piston (8) axially displaceable in the guide cylinder, a return device for displacing the drive piston to its ignition-ready position, and an elastic resetting element (9), surrounding the stem (82) of the drive piston and extending between the stop (73) of the guide cylinder (7) and a front, in the setting direction, end surface of the drive piston head (81), the resetting element (9) having a length corresponding at least to a maximum distance (A) between the stop (73) and the front end surface (83) of the drive piston head (81) reduced by the amount of the axial displacement of the fastening element guide (6).

Abstract: A high pressure gas-operated setting tool, and including a driving piston (21, 41, 61, 81) displaceable in a piston guide (7, 27, 47, 67) and having a stem (8, 28, 48, 68) and a head (9, 29, 49, 69), and a return member surrounding the stem (8, 28, 48, 68) and arranged between a stop (17), provided on the piston guide (7, 27, 47, 67) and facing in a direction opposite to a setting direction, and a front, in the setting direction, end face (18, 38, 58, 78) of the head (9, 29, 49, 69), with the return member being formed as a hollow cylindrical structural member of an elastic material and having a plurality of openings (12, 32, 34, 52, 72) which alternate, in a longitudinal direction, with layers of the elastic material.

Abstract: A high-pressure gas-operated setting tool for driving nail-shaped fastening elements into hard constructional components and including a slide (73) displaceable in a guide housing (7) under action of a portion of the high-pressure gas, which is used for displacement of the drive piston (6) in the setting direction, against a biasing force of a spring (8) and having a pawl projecting into the axial projection of the drive piston (6), the pawl (78) displacing the drive piston upon the slide (73) being displaced by the spring (8) in a direction opposite to the setting direction.

Abstract: A setting tool, actuated by highly compressed gases, for driving fastening elements into a receiving material, has an axially extending piston guide (7) forming an axially extending borehole (20) for a driving piston (21) axially displaceable in the borehole and made up of a head (9) and a shaft (8) projecting axially in a driving direction from the head. To return the driving piston (21) to a starting position after a fastening element is driven, three axially extending conical compression springs following one another and encircling the piston shaft are positioned between a stop (17) in the piston guide (7) and an end surface (18) of the piston head. Damping elements (14) are located between adjoining compression springs. In the compressed state of the compression springs, the coils in each spring are in a common plane with one another and are free of contact with one another.

Abstract: An explosive powder charge operated setting tool includes an axially extending driving piston (2) slidably guided in a piston guide (1). The piston guide (1) has a trailing or rear end base part (3) penetrated axially by a through channel (4) which opens in the driving direction of the setting tool into a recess (7) in the base part (3). The trailing end face of the driving piston (2) facing the base part (3) has a centrally arranged annular-shaped depression (10). In axial section the depression (10) is semicircularly-shaped. Depression (10) and recess (7) serve to reverse and direct unburned portions of the explosive powder charge into a hot zone in the base part (3) so that the unburned portions are subsequently ignited and do not foul the setting tool.

Abstract: Powder charge operated setting tool includes a barrel (11) and a closing or breech member (17), axially displaceable within a housing 1. Stops (3a, 17a) and shoulders (8b, 11e) cooperating with each other are provided in the housing (1) and on the barrel (11) as well as on the closing member (17) which limit displacement of the barrel (11) and, after an additional displacement travel, the displacement of the closing member (17) counter to the setting direction. As a result a free space is formed between the barrel (11) and the closing member (17) which permits feeding of propellant charges (15), especially in magazines, perpendicularly to the axis of the barrel.

Abstract: A loading strip (1) for supplying individual explosive powder charges in a setting tool is formed of an elongated belt-shaped member (2). The member has openings (2a) therethrough with a hollow receptacle (3) projecting outwardly at each opening from one surface of the member (2). The interior of the hollow receptacle (3) in combination with the corresponding opening (2a) form a space for holding an explosive powder charge. Annular gap (2b) encircles each opening (2a) and extends inwardly from the opposite side of the member from the receptacles. A bulge-like projection extends into the space formed by the receptacle and the member. The projection has a hollow recess (2c) located eccentrically relative to the opening and the hollow space and faces the opposite side of the member (2). An ignition medium (6) is placed in the hollow recess (2c). A base plate (7) forms a closure for the explosive powder charge space and the ignition medium hollow recess.

Abstract: A fastening element assembly for use in a hard receiving material, such as concrete, masonry and the like, includes a sleeve and a fastening element or bolt. The sleeve forms a blind bore in the receiving material. At its leading end, in the insertion direction, the sleeve has a cutting edge. The sleeve is rotated by rotational force transmitted to engagement faces on the sleeve. After the borehole is drilled by the sleeve, the bolt is driven through the sleeve into the receiving material.