摘要:
A box-like trim tab for a high-speed motor boat or motor yacht has an inlet at its side pivotally connected with the stern of the boat so that it can allow the exhaust gas or a cooling liquid of the engine to pass through the trim tab and emerge at the open free side thereof. The trim tab reduces the noise generated by discharging the exhaust gas under the water or by conducting the exhaust gas through the water to the trim tab outlet.
摘要:
The invention pertains to a rotary vane vacuum pump (1) with a high vacuum stage (9, 22), with a fore-vacuum stage (8, 21), with a substantially cylindrical rotor (3) which has bearing and anchor segments (11 and 21, 22), a bearing segment (11) being situated between two anchor segments (21, 22) and the anchor segments (21, 22) having vane slots (25, 26), and with a roughly pot-shaped housing (2) which contains the pump chambers (8, 9) and whose base is designed as a bearing piece (13) with a passage (35) for the rotor drive. To provide for a simple manufacture, the invention proposes that the operational rotor (3) is of one piece, that both anchor sections (21, 22) of the rotor (3) are arranged on the face side, that the bearing segment (11) between the anchor segments (21, 22) is the only bearing segment and that both vane slots (25, 26) are open from their respective front sides. (Drawing FIG. 2)
摘要:
The invention relates to a vacuum pump (1) with an oil separator (42) connected downstream of its outlet (33) and with a duct (45, 46) through which the oil separated in the oil separator (42) is returned to the vacuum pump (1); to feed back the oil in a simple manner, the oil feed duct (45, 46) opens into a duct (47) that supplies gas ballast to the pump (1).
摘要:
Warp knitted briefs are produced of two congruent lengths of knitted material. The lengths are knitted together transversely to their direction of production across the width of the material, with a distance therebetween, forming side seams. In the center of the briefs, between two side seams, starting from one of the longitudinal material edges, the layers are knitted together to form a gusset region. In the vicinity of the side seams, additional connecting areas are provided between the two lengths of knitted material, which form the front and the back of the briefs. The connecting areas are tearable under a predetermined tensile load without damaging the knitted lengths of material.
摘要:
The invention relates to N,N-disubstituted arylcycloalkylamines of general formula ##STR1## wherein n, m, A, X and R.sup.1 to R.sup.7 are defined as in claim 1, the isomers, isomer mixtures and salts thereof, which have valuable properties, particularly an inhibitory effect on cholesterol biosynthesis.
摘要:
Substituted pyridines of the formula ##STR1## in which A represents nitrogen or a C-X group where X represents hydrogen or halogen,Q represents oxygen or sulphur,R.sup.1 and R.sup.2 are identical or different and represent hydrogen, halogen, alkyl, halogenoalkyl, alkoxyalkyl, alkoxy, halogenoalkoxy, alkylthio, alkylamino or dialkylamino,R.sup.3 represents hydrogen, amino, nitro, hydroxyl, halogen, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, alkylamino, dialkylamino, alkylcarbonylamino, alkoxycarbonylamino or alkysulphonylamino,R.sup.4 represents hydrogen or alkyl andZ represents oxygen or one of the groups below: ##STR2## where R.sup.5, R.sup.6 and R.sup.7 are defined herein and their use in herbicide compositions.
摘要:
A solenoid valve battery includes in each case a solenoid valve (9), which exhibits coil contacts and can be constructed advantageously for the variation of the number of device components for the handling of connections and for cable assembly as well as with respect to its device size. A pluggable connector module (13) is furnished for the contacting of the protective grounded conductor (19), of the signal line, and of the neutral conductor (20). At least one protective grounded conductor (19) and/or a parallel running neutral conductor (20) are through-connected and running in the longitudinal extension direction (17) of the strip. The grounded conductor (19) and the neutral conductor (20) can be contacted by plugging the connector modules (13) together in longitudinal direction. A signal line (21) is furnished individually at each connector module (13) and includes a connector clamp (23) at an input (22) and a connection to the corresponding coil contact (20a) at an output (24).
摘要:
A two-stage rotary vane vacuum pump includes a pre-vacuum stage having a pre-vacuum pumping chamber and an outlet valve; a main oil sump; and a first oil conduit having a first opening communicating with the main oil sump and a second opening communicating with the pre-vacuum pumping chamber. The first opening is located at a level below an operational oil level in the main oil sump. There is further provided an intermediate oil sump situated at a level above the outlet valve and being arranged for receiving oil from the pre-vacuum pumping chamber; and a second oil conduit leading from the intermediate oil sump to components of the vacuum pump to be supplied with oil. All such components are situated at a level below the intermediate oil sump.
摘要:
A working cylinder is described which features a cylinder of compact construction. The openings provided for the tension member can be very well sealed by simple means. The tension element features a cross-section having a continuous circumferential line. The size of the cylinder is also reduced through the use of a generally elliptical piston. The tension element is preferably comprised of several plastic tension strands encased in a jacket of plastic material which also has a generally elliptical cross-sectional shape.