Abstract:
In order to provide a method for producing a soldered joint between a substrate for at least one electrode and a contact element of a fuel cell unit which results in the substrate being reliably soldered to the contact element but without impairing the functioning of the substrate by surplus solder material, it is proposed that the method comprise the following process steps: applying a mixture, which comprises a soldering material and a bonding agent containing an elastomer material and/or a resin, to the contact element and/or the substrate; bringing the substrate and the contact element into contact; soldering the substrate and the contact element by heating them up to a soldering temperature.
Abstract:
A device and method for controlling an internal combustion engine (2) includes a charger (7) for increasing pressure of air supplied to the engine. IN addition, a catalyzer (10) for refining exhaust of the engine is provided. In dependence on the temperature of the catalyzer (10), the charger (7) is activated and the time point of the combustion is shifted in the direction of “late”.
Abstract:
A slip-on receptacle adapted to be inserted on one of two members to be fastened in alignment with a hole therein and to receive and engage with a stud coupled with the other of the two members so as to fasten the two members together. The receptacle includes a base portion with an opening therein and at least one resilient mounting leg extending from the base into overlying and spaced relationship with respect thereto so as to receive the one member therebetween and mount the receptacle thereon in position with the opening in the base aligned with the opening in the one member. A resilient receptacle leg extends from the base into overlying relationship with respect thereto and is spaced from the base a predetermined distance to permit the one member to be inserted therebetween. The receptacle leg has an opening therein and stud engagement means thereon in position for alignment with the opening in the one member and the base when the receptacle is mounted on the one member to receive the stud coupled with the other member and interengaged therewith to hold the members together. The receptacle leg and each mounting leg are adapted to act independently with the resilient mounting leg accomodating dimensional width variations of the one member and the receptacle leg being a fixed distance from the side of the one member engaged by the base independent of the width diameter of the one member.
Abstract:
A receptacle for use in fastening two members together. The receptacle is adapted to be mounted on one of the two members and to be coupled with a stud mounted on the other of the two members. The receptacle includes a base and a pair of arcuate slightly resilient projections extending from the base. The member to receive the receptacle has surfaces thereon forming a recess conforming to the configuration of the cross section of the receptacle. The relative dimensions of the recess and the receptacle are such that when the projections on the receptacle are resiliently depressed slightly toward one another, the receptacle can be positioned in the recess on the member and the projections released whereupon they will tend to return to their initial configuration and thus frictionally engage with the surrounding walls of the recess so that the receptacle is mounted on the one member. The base has a hole which is aligned with a hole in the one member to receive the stud therethrough. The stud and receptacle are provided with a slot and a corresponding cam follower and a spring to accommodate axial movement of the cam follower in the slot as the stud is rotated relative to the receptacle.
Abstract:
A coupling device for mounting an article to a support. The device includes a base adapted to be mounted to a support. At least one depending leg terminating in a locking flange extends from the base. Each flange has a first configuration permitting it to be inserted through the aperture in the article to be coupled with the support. Additionally, each flange is adapted to be shifted to a second configuration to engage with the surface of the article surrounding the opening and opposite the surface adjacent to support to thereby mount the article to the support.
Abstract:
A drill chuck has a chuck body having a plurality of angularly spaced and axially extending but angled guide grooves each holding a jaw that is axially displaceable between an axially front closed position and an axially rear open position. Each jaw has an outer edge formed with external teeth, and also has an axially rearwardly directed rear face extending at an acute angle to a plane perpendicular to the axis. A ring rotatable on the body about the axis has an internal screwthread meshing with the teeth, and an adjustment sleeve rotationally coupled to the ring is rotatable to move the jaws between the open and closed positions. A cover disk on the rear end of the body is formed with respective throughgoing chip-discharge holes each having an inner end aligned with a respective one of the grooves and an outwardly open outer end.
Abstract:
A power drill has a housing holding a motor and a drive member rotatable about an axis. An arbor extending along the axis outside the housing is rotationally coupled by complementary formations with the drive member. A tube shaft on which is fixed a chuck body holding a plurality of axially displaceable jaws. A sleeve in the tube shaft is rotationally coupled to the arbor. A pusher element braced axially forward against the jaws extends axially rearward into the sleeve, and interengaging screwthreads on the sleeve and pusher element axially displace the pusher element and the jaws on relative rotation of the sleeve and pusher element. A setting sleeve rotationally coupled to the rear end of the tube shaft is axially displaceable between a tightening position engaging a slip coupling on the housing and a drilling position disengaged from the slip coupling and rotationally coupled to the arbor.
Abstract:
A drill-chuck body is rotatable about an axis and formed with a plurality of passages opening axially rearward at a rear face of the body and radially outwardly at windows in a side of the body. Jaws displaceable between front and rear positions in the passages each have a row of teeth exposed radially outwardly at the respective windows. A tightening ring rotatable about the axis is formed with an internal screwthread engaged at the windows with the teeth such that rotation of the ring moves the jaws between the front and rear positions. A tightening sleeve fitted around and coupled rotationally to the tightening ring extends axially rearward past the windows. This brace ring is radially inwardly engaged with the body and engages radially outwardly between the windows and the rear face with the tightening sleeve so as to coaxially center it on the body.
Abstract:
A gripper for use in combination with a pin has a body having an axially open cavity in which the pin is engageable. Jaws in the cavity are radially displaceable between an inner holding position bearing radially inwardly on and gripping the pin and an outer release position in which the pin can be removed axially from the cavity. An actuating element in the body is engageable with the jaws and shiftable between end positions corresponding to the inner and outer positions of the jaws. An actuator connected to the actuating element can move it from one of the end positions into the other of the end positions. An externally accessible connecting or operating member on the chuck body is connected through an emergency release with the jaws for moving the jaws into the outer release position as the result of connection to or operation of the member.