A data structure and application programming interface for creating and manipulating object model artifacts within a meta-model is provided. The data structure may include higher level abstractions of the type system to provide a set of services to implement software design tools and editors.

A versionable schema is both backward-compatible and forward-compatible. Such a schema is able to receive data expected by multiple versions of the schema; tolerates the absence of optional data, in accordance with other versions, and accept wildcard data in accordance with still further versions. Thus, a message or message may be validated by the versionable schema.

Methods, systems, and computer program products for converting an object of one type to an object of another type that allow for the runtime operation of the conversion process to be altered or customized. The conversion may occur within an extensible serialization engine that serializes, deserializes, and transforms objects of various types. The runtime operation of the serialization engine is altered by one or more extension routines that implement the desired customizations or extensions, wit...

A select lever and a permanent magnet of a type selection mechanism of a type-printer are arranged with a gap between the magnet and the distal end of the lower part of the lever. The select lever is located untouched in a stable position that is settled by the respective magnetic polarities of the permanent magnet and the distal end of the lower part of the lever imparted by a magnetization coil.

The present invention relates to a new type aircraft. The aircraft includes the airframe and wing, characterized in that the transverse section of airframe has an oblate (oval) profile with corrugated area on the ventral of airframe; the aircraft has uneven friction areas on the underside surface of wing; there are fireproof & anti-wear layers on the envelopes of airframe ventral and friction areas; the said fireproof & anti-wear layers have tire rubber material. When the aircraft is in motion w...

More easily readable matter is provided by intelligible characters which have spaced stroke components and a contrast space between the stroke components, the stroke components forming the intelligible character so that the width is at least about 20% greater than the height. The component strokes have mass or weight which does not exceed 5% of the contrast space with horizontal stroke components; and which does not exceed 30% of the contrast stroke with vertical space components. Cut-ins at str...

A printer employing a steel band having type and control indicia etched along one surface. A variable reluctance transducer senses the control indicia to properly time the operation of the printer. The transducer contains an axial pole and a concentric cylindrical pole, in which are located a coil and a cylindrical magnet.

A changeable type element for typebars of a typewriter is disclosed comprising a U-shaped member having a pair of walls spaced from one another by a connecting type face. The type element is multipositional within the typebar segment of the typewriter. A camming means is pivotally supported between the spaced walls. A spring, attached to the camming means biases the camming means into locking engagement with the typebar when the type element is assembled on the free end of the typebar. The sprin...

A type character visual indicator for an interlingual typewriter for multiple languages typing and having a chassis provided with a window, a drum having type characters is mounted for rotating and sliding to a position to align a selected type character with a striker; the indicator includes an endless band having type characters thereon arranged in reverse direction to the type characters on the drum, to a pointer movable with the drum for indicating a particular type character in a particular...

A new type of light includes a casing used for containing an emitting device. Further, the emitting device includes a couple of wires, an insulator ball, a filament and a fuse. The couple of wires are connected with a power supply via the casing, wherein the contact points of wires and casing are defined as the bottom of the light. Moreover, the insulator is posited above the bottom of light. Subsequently, the filament is posited above the insulator ball, and the fuse is posited on the top of wi...