An abrading apparatus formed from sheet stock and processes for making the same are disclosed. The abrading apparatus has a base with a plurality of cantilevered members extending from the periphery of the base with each cantilevered member formed to provide a discontinuous abrading surface along the periphery of the apparatus. A process for making this abrading apparatus includes the steps of for...

A system for continuously separating lighter and intermediate density matter, such as plasma rich in platelets from whole blood moves blood through a diverging centrifugation gap (65) between inner and outer walls of a rotor (42) rotating about a central axis within an outer housing. The centrifugation action creates layered flow along an intermediate section. However by creating trailing wakes in...

The data card is inserted into a reader that has a carrier (5) that is pivot mounted (4) and is held in the loading position by a spring (10). The carrier has a slot (7) that receives the card (21), which is pushed in against a spring (22) biased slide (20). Once fully inserted, finger pressure (50) can be applied to cause the carrier to turn anti-clockwise about the axis (4) until a lug (40) lat...

1. Rigid foam (I) is claimed, esp largely closed-cell PU or polyisocyanurate foam with a cellular structure produced by foaming rigid foam components (II), esp polyols and isocyanates, with eC02 as blowing agent and possibly using activators and/or stabilisers; the novelty is that (I) has a mainly homogeneous cell structure with cells pref below 100 microns in dia contg mainly C02 and a proportion...

A method is disclosed for the operation of a data processing system for motor vehicles including at least two computers and a line connecting the computers for the transmission of messages. This line permits a fast and reliable data transmission between the computers installed in the motor vehicle, taking into account the specific requirements of a controller-coupling in the motor vehicle. An embo...

Disclosed is a modification of production of alcoholic beverages such as beer or wine by subjecting to fermentation by means of a faculative anaerobic microorganism such as a yeast a substrate liquor to the microorganism, which modification comprises conducting at least a part of the fermentation under such an anaerobic condition that the content of the dissolved oxygen in the substrate liquor is ...

A method for providing a medical apparatus with a protective, lubricious coating is described. The method comprises providing a coating solution which contains a protective compound such as a urethane, a slip additive such as a siloxane, and optionally, a crosslinking agent for the protective compound such as a polyfunctional aziridine, coating the solution onto a surface of a medical apparatus an...

The data card is inserted into a reader that has a carrier (5) that is pivot mounted (4) and is held in the loading position by a spring (10). The carrier has a slot (7) that receives the card (21), which is pushed in against a spring (22) biased slide (20). Once fully inserted, finger pressure (50) can be applied to cause the carrier to turn anti-clockwise about the axis (4) until a lug (40) lat...

A rigid foam, especially a largely closed-cell polyurethane or polyisocyanurate rigid foam, includes a cell structure being formed by the expansion of rigid foam raw materials with carbon dioxide as an inflating agent. The cell structure is substantially homogeneous and has a cell content of substantially CO2 inflating agent and proportions of a physical inflating agent being at least substantiall...

A sofa bed having a friction damper on the main angle of the bed frame, which prevents the front tube and front legs of the frame from rapidly swinging forward as the frame is opened to prevent injury to the operator.

A mixture of two powdered alloys of the M, Cr, Al type, M being Co and/or Ni, is disclosed, in one form, for use in providing an abradable surface of an article and is characterized by the substantial absence of B. The first alloy has substantially no Si and has a higher melting range than that of the second alloy. The second alloy has substantially no Y and consists essentially of, by weight, 8-1...

The manufacture of a reinforcement for a tire comprises the following steps: (a) a continuous cord is hooked to retention means disposed in two circles which are a distance apart which corresponds to the length of the path of a cord from one side of the reinforcement to the other so that the cord, disposed in this way, defines a cylinder by a plurality of passes back and forth from one retention m...

The object of this device is to simplify and reduce the cost of the original assembly and/or the optional mounting of a controlling or limiting device associated with a differential mechanism whose output elements are connected to coaxial wheel shafts. This result is obtained by providing interengaging splines (16, 26) provided on two of the input and output elements of the differential, these spl...

The invention relates to a process for producing superconductive ceramics wherein, first, a liquid alloy melt is made of metals; this is carried out at a temperature at which the melt is chemically homogeneous. The melt is subsequently atomized with an inert gas or with oxygen. In the first case, a powder develops which is oxidized in a further step whereas in the second case the oxide powder is a...

A pickup system for an optical disc reading/recording apparatus in which a micro Fresnel lens, formed with concentric circular gratings, is used in place of an optical element, such as an objective lens, for focussing and collimating light beams from a semiconductor light source. The pickup system so formed is light in weight, easily miniaturized, and inexpensive to manufacture. The micro Fresnel ...

A closed cell phenolic foam having a cell structure in which the cell walls are substantially free of both ruptures and perforations is made by foaming and curing a foamable phenolic resole composition containing an aqueous phenol formaldehyde resole, a surfactant, a blowing agent and optionally other additives, with an acid foaming and curing agent which is an anhydrous aryl sulfonic acid which h...

Improved fiber resin matrix prepreg fabrics are disclosed which are comprised of a first layer of reinforcing fabric coated with an epoxy resin composition and a discrete second layer of an epoxy resin modified with an elastomeric polymer. The discrete second layer is provided with a support comprising a gauze-like, lightweight fibrous mat or carrier of light-weight fibers that preserves the secon...

A method for altering the surface appearance or texture of a textile or other substrate comprises impinging the surface of the substrate (25) with a high velocity fluid jet (18) with water being a preferred fluid. The substrate is placed against a support (20), and a fluid stream having a peak dynamic pressure in excess of about 2068 kPa (300 p.s.i.g) is directed onto the fabric surface. Various m...