Abstract: A closed hoop carries striking means and is connected to a bifurcated extension of a shaft and handle member by a plurality of vibration-absorbing elastic elements.

Abstract: A valve is disclosed which is comprised of a valve housing fabricated from wo valve housing halves. Each half of the valve housing is comprised of a connection piece and a flange section. The connection piece is provided with means such as threads for connecting it to piping. Each flange section is constructed from stamped sheet metal and provided with an annular area forming flanges. The flange sections of each of the housing halves are fastened together by means of fasteners such as bolts. Each of the sheet metal flange sections are provided with a connection area surrounding the valve opening which is welded to one of the connection pieces forming one of the housing halves. Each sheet metal flange section is provided with at least one semicircular recess to form a shaft guide recess for a valve shaft located in the separation plane between the flange sections that run transversely to the valve opening.

Abstract: The arrangement is used for continuously cleaning surface-sensitive paper or film in web form. The arrangement may be installed at any point along the path of web travel. The cleaning effect is provided by a ribbon of fibrous nonwoven material which is guided over a suction roller together with the web to be cleaned. The ribbon of fibrous nonwoven material moves in the opposite direction to the web. A highly satisfactory cleaning effect is obtained by the high relative speed between the surface to be cleaned and the web of nonwoven material. The particles of dust and dirt removed from the web are drawn into the suction roller under the effect of the vacuum.