Abstract: A mode dependent, optical time delay system for electrical signals having a highly multi-mode optical fiber having a step index profile in optical alignment with an optical source which is capable of converting an incoming electrical signal into an optical signal. By incorporating within the system a number of different components to alter or control the mode angles of the incoming optical signal, the resultant optical output signal is time delayed as it propagates through the optical fiber. This optical output signal is thereafter converted into an electrical output signal which is also time delayed in direct relation to the mode angle of the optical signal propagating through the optical fiber.

Abstract: A packaging machine for loading trays with delicate articles such as cakes or tarts comprises a first conveyor for conveying a stream of the articles to be loaded, a plate pivotally mounted at the end of a first conveyor to receive articles from the first conveyor, a stop above the plate to locate on the plate an article fed by the first conveyor, a pusher mounted above the plate and on the same side of the stop as the first conveyor, a second conveyor beneath the plate for conveying the tray to be loaded and a mechanism for moving the plate the stop and the pusher. In use the packaging machine is arranged so that articles from the first conveyor move in turn under the pusher and on to the plate where they are located by the stop, the plate is then tipped, the stop moved away from the article and the pusher moved downwards and away from the first conveyor to push the article on the plate down the plate past the stop and off the plate into a tray on the second conveyor.

Abstract: A mechanical mirror steering system utilizing a combination of links and bearings connected as shown in the figure to form a rhombic parallelogram, and having a mirror so attached as to describe circular arc on a plane in a precise manner.

Abstract: A system for reflecting a collimated beam of radiation with two mirrors including a gimbal mount, steering rod, an articulated spatial parallelogram linkage for one mirror, a pivot joined to one joint of the parallelogram for the second mirror and a pivoted frame and parallelogram mechanism for supporting the mirrors.

Abstract: A system for steering a mirror, comprising a mirror mounted on a gimbal provided with a steering rod and incorporated into an articulated spatial parallelogram linkage to allow for steering the mirror in a precise and controlled manner.