Abstract: A data processing system issuing ECs through “online” networks of personal computers, televisions, or other devices with video monitors or telephones. Each electronic certificate includes transaction data and identification data, and can be printed out on a printing device linked to a consumer's personal input device, or electronically stored in a designated data base until a specified expiration date. The certificate can be used for various purposes, including use as a coupon for a discounted price on a product or service, proof of a gift or award, proof of reservation, or proof of payment. Consumers access the data processing system online, browse among their choices, and make their selections. The data processing system provides reports on the selected certificates and their use following selection.

Abstract: An apparatus and method for handling photographic film within the print-exposure section of a photographic printer. A mask matches the film frame (negative) and has a window for the passage of the exposure light. The mask also has holes through which air can be directed onto the film. A guide for the edges of the film parallels, and demarcates a gap with the mask. A source of air under either overpressure or underpressure supplies such air to the mask (4) and the film (1) through the air-direction openings (15). The air is supplied with overpressure while the film is being advanced. The air is supplied with underpressure while the print is being exposed to clamp the film.

Abstract: This invention is a tire building drum for building the stage - I carcass of a tire corresponding to the initial part of the carcass before breaker belts and the tread are subsequentially applied. The invention is in a drum and a method of using it whereby the components for making the stage - I carcass can be expanded substantially radially say between 25% and 35% of the drum radius to ensure that the side wall components extend generally in planes perpendicular to the drum axis during crowning and includes fillers fitted to or attached to the beads which can be substantially undistorted in those planes and will be similarly substantially undistorted in use at the vital area where a tire is in contact with the wheel rim.