Abstract: A catalytic booster-converter for insertion into the exhaust pipe of a vehicular exhaust system comprising an elongated conduit device adapted to be rigidly connected in series with an exhaust pipe intermediate the ends thereof. The elongated conduit device is in separate length portions which are spaced apart a predetermined distance. A catalytic converter element is interposed between and removably secured to the facing ends of said length portions. A converter element is secured between such length portions in such a manner that it can be removed and replaced by movement transversely of the conduit device.

Abstract: A slide-actuated switch of precision type including first and second housing elements defining a hollow casing, the first housing element having an elongated slotted opening therethrough with a manually engageable sliding member projecting through the opening. The sliding member includes a recess in an inwardly facing surface. A resilient cam means is positioned within the recess, and includes a wedge-shaped projection. The second housing element has an inwardly-extending septum thereon defining a plurality of detents selectively engaging said projection. A pair of contacts is disposed in overlapping relation within the housing, one of the contacts having cam follower means thereon slideably engaging the projection on the cam means.

Abstract: An improved miniature switch construction of a type in which a plurality of included switches are mounted in a common housing element to be actuated by a single shaft extending longitudinally within said housing, and having included operating cams which are radially aligned by bearing journals integrally formed on each side of the housing, and fitted into correspondingly sized bores, molded into each half of a pair of housing members. The shaft is formed as a single piece of pinion stock which mates with a corresponding opening in each cam.

Abstract: A group of miniature switches particularly adapted for soldering and/or installation upon the surfaces of printed circuit boards in a manner similar to that employed in installing integrated circuit chips. The switches are commonly known in the art as DIP switches, and are of a variety of types of manual actuation. As a group, the switches are characterized by a minimization of parts, ease of fabrication and assembly, and improved reliability.

Abstract: A roll section, i.e., a spool and bearing assembly for supporting a roller sleeve, has a cylindrical spool laminated of rolled sheets. Axially-extending seams of the different laminates are arranged relative to one another to balance the assemblage. Retaining elements within the spool engage the bearing to lock it in place.