PURPOSE: To realize an effective width enlarging of a core clamp ring with a small frictional force without leakage by incorporating a narrowed cross section by forming a link, forming an acute angle at a centerline of the section of a wall section in this case in a no load state, directing a transfer region between the wall sections inward in an axial direction and providing a step at a radially ...

PURPOSE:To obtain a sealed lead-acid battery at low cost which has high deposi tion sealing reliability for high temperature use by sticking films or sheets to each other to form a current collector, the films or sheets each comprising a composite plate and a polyolefine synthetic resin body of predetermined rate of bridging. CONSTITUTION:A group 1 of electrode plates of a sealed lead-acid battery...

PURPOSE:To improve the properties of the frame body of a lead-acid battery against residual stress and shrinkage percentage so as to prevent generation of cracking for maintaining the sealing property of the battery over a long period of time by using a polyester of great stress cracking resistance as the frame body. CONSTITUTION:In a lead-acid battery, the circumference of a group of electrode pl...

PURPOSE:To enhance the productivity of a storage battery by arranging a fixed plate at the center of electrode groups of two cells when inserting the electrode groups into an electric jar to manufacture a storage battery, and also shifting moving plates located on both outsides of two cells to the center portion side by means of insertion of wedges, and compressing each of the electrode groups to ...

A gas feed arrangement for supplying gas into bags in a packaging machine is disclosed. A belt-like film is tubulated by a tube former and, as articles to be packaged are supplied into the tubulated film, both the tubulated film and the articles are transported while being held between a pair of tension conveyors. Double pipes, each consisting of an outer evacuation pipe and an inner gas jet pipe,...

A method of monitoring yarn quality in a yarn texturing process comprises measuring the velocity of the travelling yarn at two locations and comparing the measured velocities. At a first location the yarn tension is sufficient to draw out the crimp and at a second location the tension is lower such that the crimp is developed. Apparatus for performing this method comprises a measuring device (28) ...