Abstract: A boat comprising a hull the general shape of which is a spherical dome which in the fore part of the boat extends to above the water-line at maximum load while at the sides the part of the hull above the water-line departs from a spherical shape and progressively approaches a cylindrical shape, and further comrising at least one float-forming lee-board disposed at the aft and rigidly connected to the hull, and a single propeller orientable about a vertical axis comprised in the median longitudinal plane of the boat.

Abstract: Quick-action pipe joint having a pair of clamp members in which tapered groove portions are adapted to engage the peripheries of flanges of the pipes to be connected. The members are curved so as to be able to encircle the pipe flanges, one end of each clamp member being mounted so as to rotate or pivot freely, toward and away from each other. The other ends can be held tightly clamped with a special bolt and a nut arrangement.

Abstract: A device for separating air bubbles from fluids, e. g. feed water, to provide smoother flow thereof, and to protect the piping against corrosion. The device comprises a large hollow cylinder intercalated in the piping and an air-cushion member at the top of the cylinder. An air exhaust pipe is provided in the member to separate the air bubbles.

Abstract: Device for making sections for specimens and specimen support therefor, namely for thin sections and ground surfaces of metallographic specimens for microscopic analyses. The device includes a rotatable polishing wheel with at least two of the specimen supports disposed thereabove, and frictional drive means centrally located with respect to the wheel, wherein the specimen supports have assigned thereto at least one roller for driving a pair of adjacent supports, the latter as well as the rollers having complementary engaging peripheral surfaces that are partly cylindrical and partly conical, and means for adjusting the location and degree of interengagement between the respective surfaces.

Abstract: Device for wrapping thin dough sheets around a mixture of minced vegetables and meat. The mixture is wrapped into the sheet by the reciprocal movement of a belt. One end of the belt is secured to a cradle and the other end to a slide plate. The latter is reciprocated by a cam mechanism connected to a main spindle.

Abstract: Desalination apparatus with the double feature of condensation and evaporation, comprising plural dish-like condensing elements piled coaxially, wherein a sloped bottom diaphragm is provided in each element, at the lower part of each of which an upwardly diverging duct is provided. A cooling pipe is led through the ducts of the elements. A depending pipe is provided near the outer edge of each element, through which the supplied sea water flows from an upper element to a successive lower element. The lowest condensing element is heated or is filled up with water that is hotter than the supplied sea water. The distilled water obtained on each condensing element is withdrawn from the lower edges of the ducts as a result of evaporation from the elements and subsequent condensation on the undersides of the diaphragms.

Abstract: Device for conveying or transferring rolled food, namely semi-finished materials in a chain of procedural steps to the next step. A comb-shaped cradle is secured to each stage processing device, and travelling comb-shaped cradles pass the fixed cradles upwardly, thus the materials on the fixed cradles are moved to the travelling cradles. The latter move above the fixed cradles of the next stages and pass the fixed cradles downwardly, thus the semi-finished materials are put on the fixed cradles of the next stages.

Abstract: Device for processing dough, specifically one that forms dough sheets having a desired thickness and bakes them. Dough in a hopper is injected from a flat nozzle by a gear pump and stuck onto the rotating drum. The latter is heated and the dough sheet is baked on it. The sheet is released from the drum by a releasing plate contacted with the drum.

Abstract: Device for mounting specimens for the purpose of lapping, grinding and polishing metallographic specimens for microscopic analyses, comprising a rotatable polishing wheel with a number of specimen holders disposed thereabove, a driving roller centrally located with respect to the wheel and at least one supporting roller for each specimen holder, the rollers having wedge grooves engaged by peripheral edge portions of the specimen holders, and adjustable pressing members in the specimen holders for exerting pressure on the specimens and for maintaining proper frictional contact between the wedge grooves and the peripheral edge portions which constitute a frictional drive.