摘要:
A connection device consisting basically of a socket member (1) exhibiting a termination area (2) for the connection of an electric cable and a contact area (4) joined to it by means of a base (1a), the contact area being in the form of tines and intended to receive and hold a mating pin (3), and of a separate driver member (5) in the form of a closed ring which is preferably manufactured of heat recoverable material. In order to create an electrical connection device where the driver member being retained against the contact area, creates both a mechanical force and keyed-in connection between the socket member and the mating pin when in its second functional position, a recess which is at least partial formed into the mating pin, and the tines and driver member are formed and positioned relative to each other in such a way that the driver element partially fits into the recess when in its second functional position. In addition, when using a driver member of heat recoverable material, it is advantageous if at least one locking element is provided which prevents unwanted actuation of the driver element when locked, while permitting appropriate actuation when released.
摘要:
An electrical connector consisting principally of a housing of synthetic material with a plurality of receiving chambers provided therein for receiving an associated electrical connector contact element. In at least one outer housing wall of the housing is located one orifice per receiving chamber, with a locking arm disposed therein, which is integrally formed as a single piece on this outer wall of the housing. In order for it to be possible with a single operating step to release both the primary and the secondary locking and therefore to remove the electrical connector contact elements quickly and easily from their receiving chambers, a return slope is integrally formed on the free end region of each of the locking arms. In the housing at least one further access point is provided per receiving chamber and leads from the mouth region of the housing. This access point extends substantially parallel to the longitudinal direction of the receiving chamber so that a tool inserted into the housing by way of the other access point displaces the locking arm from its locking position into its release position.
摘要:
Crosslinkable compounds obtainable by reaction of water-soluble mono- or polyamines with 2,3-epoxypropyl sulphonates or 2-hydroxypropyl 1,3-bis-sulphonates or their mixtures with up to 15 mol % of an epihalogenohydrin or dihalogenohydrin are used for imparting wet strength to paper.
摘要:
Spread-coating compositions for improving the surface properties of paper comprising an aqueous dispersion of a styrene/butadiene-polymer, and from about 2% to about 30% by weight of total polymeric solids of polyethylene oxides of a molecular weight of from about 6,000 to about 50,000.
摘要:
The invention relates to enantiomerically pure bisphosphines of the general formula (I) ##STR1## where R is as defined in the description, a process for their preparation and their use in metal complexes as catalysts for asymmetric reactions, in particular asymmetric hydrogenations.
摘要:
The invention relates to enantiomerically pure bisphosphines of the general formula (I) ##STR1## where R is as defined in the description, a process for their preparation and their use in metal complexes as catalysts for asymmetric reactions, in particular asymmetric hydrogenations.
摘要:
Crosslinkable compounds obtainable by reaction of water-soluble mono- or polyamines with 2,3-epoxypropyl sulphonates or 2-hydroxypropyl 1,3-bis-sulphonates or their mixtures with up to 15 mol % of an epihalogenohydrin or diyhalogenohydrin are used for imparting wet strength to paper.
摘要:
An electrical connector with a connector part having a rectangular cross-section and a casing part. The casing part has a main body which comprises a contact region formed with a rectangular cross-section like a quiver-like case which receives and holds a contact. In order to create an electrical connector device which can be produced simply and cost-effectively and in which at the same time good transmission of current is ensured, the contact consists of a contact plate which is bent in a U shape about the middle region extending transverse to its longitudinal extension. Two contact arms are formed extending substantially spaced apart and parallel to each other, of which the free ends are connected to the mouth region of the contact region in order to fix the contact on the main body both in a form locking manner and in a materially bonded manner.
摘要:
The invention relates to novel enantiomerically pure bisphosphines of the general formula (I) ##STR1## in which R, R.sup.1 and R.sup.2 have the meanings given in the description, a process for the preparation thereof and the use thereof in metal complexes as catalysts for asymmetric hydrogenations.
摘要:
The present invention relates to novel 2-arylpropenoic acids, derivatives thereof, processes for their preparation and their use in the preparation of S-ketoprofen.