Abstract: An apparatus and method are provided for calibrating a densitometer based sensor for measuring the linear density of the shot particles passing through a shot peening system to ensure that mass flow rate readings and shot velocity readings calculated therefrom are accurate. The apparatus comprises a probe having a plurality of randomly distributed particles configured to have a linear density substantially equal to the linear density of shot which the sensor should experience during operation of the shot peening system at desired parameters.

Abstract: A shoe support for supporting lasts of a wide range of sizes comprises two support members in the form of spaced-apart bars (38) each of which can pivot at an axis (36) extending adjacent an elongated edge of its associated bar so that the distance between the ends of the bars can be varied. Instead of bars (38), plate members (138) may be used, dimensioned so as to provide a substantially continuous support surface, for e.g. shoe components, when pivoted to a horizontal position. For maintaining the support members (38;138) in adjusted position, furthermore, a friction arrangement (40,42; 144,146) is provided. The shoe support is especially suitable for use in a shoe transporter system forming part of a drying apparatus in which the bottoms of shoes and/or shoe components to which a coating of e.g. adhesive has been applied can be supported by the shoe supports with the coated surfaces exposed to turbulent air and heat.

Abstract: The invention relates to remote sensing from a satellite of a parameter in one or more regions on the ground adjacent the satellite ground track by radar transmission. The purpose of the invention is to reduce energy consumption and optimize measurement accuracy. A transmitter antenna generates a plurality of pencil radar beams which illuminate respective cells of the region. A control means successively energizes the antenna at respective frequencies for respective pulse durations and for respective number of pulses. The invention is particularly appliable to scatterometer apparatus for responding to wind speed and direction by sensing radar backscatter from sea.

Abstract: Radially fed microwave signal combiner/distributor apparatus comprising a central coaxial connector which is coupled via radially extending paths to several circumferential coaxial connectors which are equiangularly disposed on the circumference of a circle surrounding the central connector, the apparatus including a generally discoidal microwave transmission cavity through which the paths extend, which cavity communicates at the center thereof with the central coaxial connector and which cavity communicates at the circumferential periphery thereof with the circumferential coaxial connectors via a conductive annulus, which annulus is spaced away from the internal circumferential periphery of the cavity, and to which annulus the inner conductors of the circumferential coaxial connectors are electrically connected at locations equiangularly spaced around the annulus.