Abstract: A nut cap and assembly therewith is provided. The capped nut assembly is made up of a nut body and a cap. The nut body has an elongated internally threaded member formed with polygonal side walls extending from a collar member at the inner end toward the outer end, and the cap has a hollow shell with an end wall closing one end and being open at an opposite end. The cap is sleeved over said nut body with its side wall surrounding the polygonal side walls and its closed end overlies the outer end of the nut body, and the open end of the cap has a radially inwardly flared resilient lip portion that attaches to the collar member in a snap fitting relationship.

Abstract: Ion beam machining apparatus which uses a focused ion beam to sputter particles from a target is disclosed. The beam is scanned over the target and photons emitted in response to the incidence of the beam on the target are analyzed to identify the different materials in the target and the location of these materials. Electrons are projected in a stream to the impingement site of the ion beam, in order to neutralize the charge produced by the beam and thereby stabilize the position of this site, and the photon detectors are isolated from any light emitted by the electron source.

Abstract: A miniature sized, scenic display which includes a transparent case containing a three dimensional landscape of a village of houses located in a woods alongside a lake, boats and flower blossoms floating on the water surface, a school of imitation fish swimming underwater, and the water circulating variably in the lake by means of a paddle mechanism, so to give movement to the floating and swimming objects.