摘要:
A method of fabricating a belt wherein a belt carcass is shuttled back and forth between a pair of storage reels, one of which is pivoted after the first pass to invert the carcass, with extruder means in line with the pass line of the carcass such that covering material is fed continuously from the extruder directly onto the upper and then the lower surfaces of a belt carcass. Such carcass and covering are joined together by laminating the covering to the carcass without interruptions.
摘要:
An apparatus for heating and compressing an elongated article ls provided. The invention comprises the use of a plurality of individual press units which are heated; the press units are moved into heating and compression relationship with opposed surfaces of the article; each press unit is moved successively into engagement with the article and into contacting end to end relationship with the previous press unit, the units being moved relative to the surface only in a direction perpendicular to the surfaces when in contact with the surfaces; the press units and the article are moved stepwise in the direction of the length of the article; the press units are continuously maintained in contact with the article until the end of the heating and compressing cycle; with the press unit finally successively being moved out of engagement with the thus produced elongated article.
摘要:
This invention pertains to an extrusion head for producing a resistant element of a conveyor belt or the like, the particular resistant structure of which comprises metal wires or threads of various diametrical dimensions. The extrusion head is capable of producing a tube of uncured elastomeric material in which longitudinal metal wires or threads are embedded during its formation. The tube is then cut along one of its generatrices by suitable means and is converted to a flat band.
摘要:
A drive belt for use on a yarn spinning frame or the like, and which is adapted to run substantially lint free. The belt comprises interwoven cotton and nylon yarns, with at least several of the yarns including an electrically conductive component in either continuous or staple filament form blended therewith to facilitate discharge of static electricity. Also, a cured resin substantially fills the interstices of the woven material to prevent lint or yarn fly from lodging therein.
摘要:
A CURING PRESS FOR ELONGATED ARTICLES HAVING A SERIES OF PRESS UNITS WHICH SUCCESSIVELY ENGAGE SUCCESSIVE PORTIONS OF THE ARTICLE AND MOVE IT AND A UNIT OF THE PRESS WHILE THEY ARE IN ENGAGEMENT THROUGH THE PRESS WHILE THE PRESS UNITS APPLY COMPRESSIVE FORCE AND HEAT TO SUCCESSIVE PORTIONS OF THE ARTICLE. THE ARTICLE AND THE PRESS UNITS IN ENGAGEMENT THEREWITH ARE MOVED THROUGH THE PRESS IN A STEPWISE MANNER AND EACH PORTION OF THE ARTICLE HAS COMPRESSIVE FORCE APPLIED TO IT WHILE IT IS STATIONARY.