Abstract: An apparatus for mechanically extracting fish roe utilized in conjunction with a continuous operation to butcher and clean fish, especially salmon. After head removal, each fish traverses along a V-shaped trough, tail first and belly up, through side compressing (but resilient) rollers, vertically disposed, forcing the roe sack out of the fish body through the opening provided by the head removal. The trough has a lower opening strategically located relative to the rollers to allow the fish roe to drop by gravity to a collecting receptacle.

Abstract: A central twin or single chain conveyor with abutments moves crabs through a centering device, beneath leg hold-downs and into an intersecting chain having projections that strike the carapace's leading edge to pivot it away from the crab body, and into a guide that, with the chain carrying the projections, will transport the carapace to a cross conveyor for removal. A central pipe, closed at its upstream end, is stationarily positioned to enter the body cavity and remove the viscera from the crab body, and travels in the body cavity while cleansing liquid is sprayed through holes in the pipe to clean the body cavity and the crab is guided by the pipe. Rotatably driven brushes biased into the crab body will, along with the water sprayed, remove the gills. The central conveyor has link support surfaces on opposite sides of a central plane of symmetry to space the crab body above the central portion of the chain so that a central rotating saw may saw the crab body into two sections, each with the legs attached.

Abstract: Glassware having small bubbles or blisters that impart a handcrafted appearance to it is made by metering specially formed decomposable granules into a soda-lime glass melt at the feeder of a glass forming machine. The granules are made by coating or wetting an alkali metal nitrate with sodium silicate aqueous solution. They decompose in the melt, but the water glass coating slows the decomposition rate such that the resulting gas inclusions cannot escape from the melt before it has been formed or set in a desired shape in the forming machine.