Abstract: A method and apparatus for aligning the light path of a square ring laser gyroscope wherein the alignment method includes directing two input beams of light into the cavity of the gyroscope. Next, the input beams are intercepted prior to their incidence upon the input mirror with a pair of polarizers. Subsequently, the extinction ratios of the first and second output beams of light are measured at the exit mirror. The curved mirrors of the gyroscope are then translated in opposite directions and equal amplitude so as to change the extinction ratios of the output beams. Such translations are repeated until the measured extinction ratios are substantially equal.

Abstract: For releasable connection of a first apparatus (e.g. an electric cable) to a second apparatus (e.g. an electric switch) for conductive communication therebetween, a connector comprises a plug (1), a socket (2), an over-center buckle (14-17) and an "O"-ring (19), the latter being housed in said socket (2) and arranged to be compressed in the course of, the engagement of said plug and socket as effected by displacement of said buckle. The "O" ring upon compression tends to resile in a sense to displace the buckle towards its engaged state. This provides both the requisite locking between the plug and the socket, and also a seal against the ingress of moisture into the socket. Interengaging contacts (7,11) are each carried on a non-conductive carrier member (23,27), the carrier members having resilient tongues and lips (24,25,28,29) for retention in the plug and socket respectively by snap action over a step (26,30) within body portions (9,12) of the plug and socket respectively.

Abstract: Apparatus including a vehicle and rotor means carrying cutter structure is provided, for removing pavement in linear trench configuration or configurations.

Abstract: Laminates of a metal base having a plasma or flame sprayed metal coating thereon, which coating comprises at least about 50% by weight of a transition metal, and including a layer of a solid film lubricant of effective lubricating amounts of a lubricating pigment dispersed in a polymeric binder on said flame sprayed or plasma sprayed metal coating. These laminates may be used at various glass contacting locations for handling glass in its process of manufacture.

Abstract: An improvement is provided in methods for conveying a charge, or gob, of formable glass along glass loading equipment, from the point of severance of the gob to the point where the charge of formable glass is discharged into a mold for forming; the improvement essentially resides in increasing the effective glass contacting life of lubricants, which have been previously employed on the glass loading equipment, by providing a support coating for the previously employed lubricants, which support coating comprises a transition metal in a major amount applied from a flame spray or plasma spray and presents an abrasion-resistant, rough surface profile upon which the previously employed lubricants are then deposited.