An antifouling coating composition for boat hulls, etc. based on a combination of fluoro-carbon polymers especially polytetrafluoroethylene and antifouling agent, especially copper metal and Cu2O, as active constituents. Additional binders and fillers can be included.

An apparatus and method for providing an accurately regulated flow of liquid medium to a device mounted in or on a rotor of a centrifuge, comprises a scoop on the rotor having a mouth opening forwards in the direction of rotation, with a duct connecting the mouth to the device; the liquid medium being projected as a jet into the path of the rotating scoop so that the mouth chops out a mid-portion ...

The invention concerns a centrifuge intended for use in mainpulating liquid batches on an analytical scale. The centrifuge consists of a body (2) rotatable about its axis (1) provided with input and output conduits (8,9,11) and presenting the essential feature that therein are contained two parallel, circular arc-shaped volumes (3,4) located at different distances from the axis (1) of the body (2)...

PURPOSE:To obtain a reset signal for a processor and to perform resetting in case of malfunction by detecting edges of a signal outputted according to a programmed procedure, and detecting the level of the signal obtained by integrating the edges. CONSTITUTION:Edges of the output signal of the microcomputer 1 are detected by a detecting circuit 2. The detected edges are integrated by an integratin...

PURPOSE:To use one self-monitoring timer for both an initial routine process and a normal routine process in common by switching clocks to be counted by the counter of the self-monitoring timer system of a microprocessor at the time of initial routine processing and normal routine processing. CONSTITUTION:A clock 2 is inputted to a counter group 1 through a changeover gate 2 in the normal routine ...

PURPOSE:To speed up the recovery to normal operation by detecting edges of an output signal of a specific period to be processed in time series, and resetting a processor when the level of the signal generated by integrating the edges is larger than a set value. CONSTITUTION:The output signal of a microcomputer 1 is supplied to an edge detecting circuit 4 to detect edges. Its edge detection output...

A card locking device for use in a time recorder which is constructed in such a manner that while a wire type dot matrix type printer performs its printing operation such as time printing or the like on a time card inserted into a card guide passage, a locking lever is effective in clamping the inserted time card in the card guide passage for the purpose of preventing it from being removed therefr...

L'INVENTION CONCERNE UN PROCEDE DE TRAITEMENT DE LA SURFACE D'UNE COUCHE DE POLYURETHANE AYANT DES PROPRIETES D'ANTILACERATION ET D'AUTOCICATRISATION UTILISEE EN TANT QUE COUCHE EXTERNE DANS UN VITRAGE FEUILLETE.

SELON L'INVENTION, ON DEPOSE SUR LA SURFACE DE LA COUCHE, UNE SOLUTION DISPERSION OU EMULSION DE CIRE COMPRENANT, EN OUTRE, UNE HUILE DE SILICONE ET EVENTUELLEMENT DES AGENTS DE ...

A safety ski binding releasably holding a boot on a ski. The binding includes a jaw adapted to hold the boot and to pivot laterally, and an elastic mechanism biasing the jaw against lateral pivoting. When vertical stress acts on the binding, friction is generated which further biases the jaw against lateral pivoting, thereby preventing lateral release of the boot when dangerous lateral stress acts...

PURPOSE:To allow a disc brake to work with roll back effect, by making the seal ring with a profile in the form of an approx. parallelogram deformed backward at the bore side, and by fitting the bore side in a groove provided at the periphery of a piston. CONSTITUTION:A seal ring 6 has a profile in the form of approx. parallelogram deformed backward on the bore side 6a and forward on the periphery...

A process for marking fluoropolymer articles, for example to color code them, which employs a composition that is an organic dispersion containing a copolymer of tetrafluoroethylene and hexafluoropropylene, an epoxy compound, and a pigment.

The brake unit (e.g. for use in controlling draw works of a drilling rig comprises an input shaft (22) which operates to drive a gear pump (96) for circulating oil under pressure over interposed brake discs (136) and plates (140) and through restricted openings (162) during a first direction of rotation such as during lowering of the pipe stands so as both to cool and to lubricate the discs and pl...