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Publication of SU62312A1publicationCriticalpatent/SU62312A1/en
Application filed by А.П. Кучумов, Г.И. ЧижиковfiledCriticalА.П. Кучумов
Priority to SU209ApriorityCriticalpatent/SU69979A1/en
Priority claimed from SU209Aexternal-prioritypatent/SU69979A1/en
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Publication of SU69979A1publicationCriticalpatent/SU69979A1/en
Способ формовки гребных винтов, особенно с переменны.м шагом, отличающийс тем, что на полученную вращением щаблона по направл ющим угольникам винтовую поверхность укладывают по нанесенным концентрическим рискам трапецеидальные угольники, забивают промежутки между ними землей и сглаживают поверхность линейкой.A method of forming propellers, especially with variable pitch, characterized in that the screw surface on the screw surface obtained by rotating the squares along the guide squares is laid on the trapezoidal squares caused by concentric risks, block the gaps between them with earth and smooth the surface with a ruler.