Abstract: A method for creating a web-based database application that is data dictionary driven is disclosed. A web site, containing various computer programs, data for a database application and a data dictionary describing both the structure of an application database and the requirements for the database application, creates web pages for facilitating the execution of a database application over the internet. The method comprises the steps of creating, updating and maintaining an on-line data dictionary, and creating and initially populating a database for the application. The various programs at the web site create web pages for the application, update the data dictionary and facilitate modification of the data structure for the application. The data dictionary may be initialized: from electronic data uploaded to the web site; from the data-dictionary records describing an existing web-based application; or directly by the user via a web interface.

Abstract: A differential assembly in which a belt links gears on opposite sides of a carrier via idlers, which idlers are spaced to have synchronous interfittment of the belt teeth with the gear teeth and peripherally shaped to turn the belt flat for gear engagement with a minimum arc of partial engagement.

Abstract: A power driven personal walker for the infirm and handicapped comprising laterally spaced uprights for grasping by a user in a walking position, a horizontal base frame supporting the uprights in use position rearwardly open to the legs and feet of the user and having a transverse front portion, a wheel assembly, and means to drive the wheels including a motor coupled to said axle means in wheel driving relation.

Abstract: A bicycle pairing apparatus comprising a plastic chassis having head, rear and intermediate portions respectively opposed to the handlebars, the rear axles and the seat posts of the bicycles. Connector rods connecting the bicycles at the handlebars, the rear axle and the seat post pass through the chassis portions and are supported by the chassis in such manner that loadings on the bicycles that might put them out of square to each other are resiliently resisted and the bicycles are kept in square alignment.

Abstract: A fire resistant plastic trash container is provided by embedding a contiguous mass of incombustible particulate in the container surfaces to be protected, suitably by gravity impact during rotational molding of the container.

Abstract: Wheel structure for a trash container comprising an enhanced thickness hub portion defined by positioning a metal member within the locus of the wheel wall during molding so as to increase wall thickness by better heat transfer and increase resin buildup in the vicinity of the metal member. The metal member is usefully a fastener for the end of the wheel carrying axle whereby the position of the wheel on the axle is fixed by the fastening metal member being trapped in the increased wall thickness hub.

Abstract: Machine dumpable, self-closing trash receptacle comprising an axially elongated, upwardly open, trash receiving body having an outwardly projecting flange at its upper rim, and a body cover, the body and cover being connected in hinged relation by cooperating body and cover portions defining a series of tabs and a mating series of slots, and fastening means connecting the tabs and slots for maintaining mating interfittment of the tabs and slots in normal covered, and inverted dumping condition of the receptacle.