Abstract: A deice for curing a photocurable plastic filler (6) disposed in a dental cavity (2) of a hard tooth substance (4) includes a laser light source (10) and a light conductor (11) leading from the laser light source (10) to an applicator (14). The applicator (14) is utilized to apply drops of the plastic filler (6) upon the dental cavity alternating with an intermittent operation of the laser light source (10).

Abstract: A method and apparatus for reforming the base of a container such as a can having a domed base. The apparatus comprises independent assemblies for rotating the can and for reforming the base profile. The base reforming assembly uses a torque shaft to twist an eccentric and actuate radial movement of a roll into contact with the can base. A stop prevents movement of this roll beyond a predetermined amount, thereby maintaining consistency of profile depth. By minimizing moving parts of the tooling, wear is limited to that which may arise from the stop alone.

Abstract: Apparatus for re-forming a seaming flange (F) formed on the open end of a can body (B) comprises: a bottom support for supporting the bottom end wall of the can body and a pusher pad (2) including a circular disc (12) having an outer profile adapted to receive and support the open end of the can body with the seaming flange protruding radially outwardly beyond the disc. A push rod (4) moves the pusher pad axially towards and away from the bottom support such that successive can bodies can be held there between whilst the pusher pad and bottom support are driven in rotation about their common axis. One or more rollers (34) are mounted adjacent the outer edge of the pusher pad disc for axial movement with the push rod and the pusher pad (2) is mounted on the push rod (4) for limited axial movement thereon against the action of a spring (38).

Abstract: In an apparatus for the processing of workpieces and the surface treatment thereof by means of a plasma, a processing chamber (11) to process workpieces and a treatment chamber (10) for the surface treatment of the workpieces by means of a plasma are united in one device. The two chambers (10, 11) are sealed against the environment in a gastight manner and separated from each other by means of a gastight door (12). Thus, workpieces (15) can be machined in the processing chamber (11) by means of a tool (20) while the door (12) is closed. After processing, the conditions in the two chambers (10, 11) are adapted, for example by introducing the same gas into the processing chamber (11) as into the treatment chamber (10). After the pressure in the two chambers (10, 11) has been equalized, the door (12) is opened by displacement, and the workpieces (15) are transferred into the treatment chamber (10).

Abstract: A suction device for body fluids comprises a container (10) being airtightly closable by means of a cover (11). A bag (14) is connected to a cylindrical projection (12) of the cover (11) by means of a support ring (13). A suction opening (15) is provided in the cover (11) to produce a low pressure in the bag (14). Furthermore, the suction opening (15) comprises a branching (31) to produce a low pressure in the container (10) as well. Additionally, the cover (11) comprises an outlet opening (17) enclosed by a hollow body (37). The hollow body (37) can be pushed into the container (10) to empty the bag (14) so that the fluid contained in the bag (14) can be poured out via openings (40, 41) of the hollow cylinder (37).

Abstract: A control device for reducing a marking time in a marking device. This control device performs control operations whereby an image 20 of an area that circumscribes the entire "ABCDE" pattern of an original image is retrieved, the circumscribed area image 20 is divided into a plurality of image segments 19 of a predetermined size, and each of the plurality of image segments 21 is sequentially displayed on a mask.

Abstract: In a brake jaw consisting of a lining support member (2) and a friction lining (4), an intermediate layer (6, 8) arranged between the friction lining (4) and the lining support member (2) and acting as a damping layer to avoid squealing caused by friction, it is provided that the intermediate layer (6, 8) consists of a material mixture that is adapted to damp friction squealing during braking and to generate an acoustic alarm signal when reaching the wear limit.

Abstract: A concentrator for focusing solar radiation onto an elongate absorber, comprising a plurality of transverse supports arranged one behind the other in the longitudinal direction, stabilizing the concentrator in the transverse direction and defining the shape of the concentrator profile, and a thin-walled support structure resting on said transverse supports and having a plurality of adjacent longitudinally extending ribs stabilizing the concentrator in the longitudinal direction. In the transverse direction, the support structure adapts to the curved profile of the transverse supports and forms a light-weight and strong bearing for a reflector plate.

Abstract: In a brake jaw (5) for disc brakes with partial linings having a brake disc (1), in particular for trucks, comprising a lining support plate (2) and a brake lining (4) fastened to the lining support plate (2), it is provided that for compensation of the radially different heat distribution in the brake disc (1), a radial profiling of the frictional power induced via the brake lining (4) is performed, the profiling being opposite to the heat distribution.

Abstract: A boat lift motor and drive assembly includes a rigid mounting plate supporting a boat lift motor, a drive shaft thereof carrying a drive pulley, a pulley belt entrained about the drive pulley and a driven pulley, the driven pulley being connected to a shaft of a worm gear, the worm gear being in mesh with a drive gear, and the drive gear being connected to an output shaft which is in turn connected to a reel having wound thereon a boat lift cable which is connected to a boat platform for lifting and lowering a boat resting thereon. The lift motor and drive assembly as covered by a housing defined by first and second housing bodies with a first of the housing bodies including a recess for receiving the driven pulley and accommodating the same and also including a frusto-conical wall defining a protective shroud for the winding reel shaft.

Abstract: A hose coupling comprises a coupling element with a throughflow channel and a plug member with a plug projection for insertion into the throughflow channel of the coupling element. The plug projection opens a valve when inserted. To retain the plug member on the coupling element, detents are used that each have a locking nose engaging behind a retaining member. Thereby, withdrawing the plug member is inhibited. The plug member may take a second position in which the plug projection does not yet push open the valve, but already seals the throughflow channel. Thus, additional hose clamps may be omitted.

Abstract: Apparatus for use in forming can bodies comprises a punch including a hollow punch sleeve with a supply of compressed air connected to the interior thereof. A concave dome void recess in the nose of the punch is adapted to receive a correspondingly shaped doming tool for forming a domed base profile in the can body and an air passage provides fluid communication between the interior of the punch sleeve and the concave recess. A valve located in the air passage is biased into the open position by a spring but is normally held closed by the pressure of air in the interior of the sleeve. Entry of the doming tool into the dome void recess when the valve is closed causes a substantial rise in pressure in the air passage which enables the valve to open and deliver compressed air to the interior of the can body to assist in stripping it from the punch.

Abstract: A method of determining in a game of tennis the point of contact of a service ball relative to a service line by (a) monitoring a field of view along the service line and producing an electronic representation of an upper boundary of the ball as it passes through the field of view, (b) scanning the upper boundary of that representation progressively in the direction of the ball flight and determining at successive spaced positions along the path of the ball the angle of definition of the boundary, and (c) comparing successive values of that angle and noting the position of the ball at which that angle reduces relatively rapidly to a lower or even a negative value. A preferred method determines and compares successive horizontal components of successive sections of the boundary which have successive equal value vertical components.

Abstract: A boat lift motor and drive assembly includes a rigid mounting plate supporting a boat lift motor, a drive shaft thereof carrying a drive pulley, a pulley belt entrained about the drive pulley and a driven pulley, the driven pulley being connected to a shaft of a worm gear, the worm gear being in mesh with a drive gear, and the drive gear being connected to an output shaft which is in turn connected to a reel having wound thereon a boat lift cable which is connected to a boat platform for lifting and lowering a boat resting thereon. The lift motor and drive assembly as covered by a housing defined by first and second housing bodies with a first of the housing bodies including a recess for receiving the driven pulley and accommodating the same and also including a frusto-conical wall defining a protective shroud for the winding reel shaft.

Abstract: The invention relates to a variable-displacement screw-type compressor with at least one main rotor and at least one subsidiary rotor which are fitted in the same housing, mesh together and convey a medium to be compressed from an inlet to an outlet, in which the inlet is bounded by at least one housing segment fitted to slide in the housing which follows the shape of the rotor casings on its sealing side facing the rotors. At least one housing segment is guided and movable transversely to the rotor axes.

Abstract: A token for use with a token operated device includes a plurality of predetermined optical characteristics. The plurality of predetermined optical characteristics are disposed in a substantially radially symmetrical manner with respect to the token, and each of the optical characteristics have the property of a facet wherein an effective surface normal of said facet is a line along a predetermined vector angle with an elevational angle ranging preferably between 30.degree. and 60.degree.. An azimuthal angle of the facet surface is other than substantially along a radial line of the token or substantially along a line tangent to an annular ring centered on the token such that a token operated device can validate the predetermined optical characteristics substantially independent of token orientation.