A roller and a device for guiding paper webs to a unit of a rotary printing press includes paper web traction devices. These traction devices may be endless or of finite length. The roller that cooperates with these traction devices includes a passage that receives the traction devices. The axial width of the passage is adjustable.

New fibrous nonwoven webs are taught that comprise a mass of polyethylene terephthalate fibers that exhibit a double melting peak on a DSC plot: one peak is representative of a first molecular portion within the fiber that is in non-chain-extended crystalline form, and the other peak is representative of a second molecular portion within the fiber that is in chain-extended crystalline form and has a melting point elevated over that of the non-chain-extended crystalline form. Webs comprising fibe...

The present invention concerns a device for discharging webs at a predetermined web speed in an uninterrupted process, in which the web end (37) on an initially active take-off roll (2) must be placed against and joined to the beginning of a web on a roll initially situated in a waiting station. To this end, the web tension in the processing line (39) is adjusted to a predetermined target value. In order to influence the web tension in additional areas during the joining of the web ends (37), a ...

Deviator device for a web, particularly a paper web, in which a deviator drum, disposed between an inlet guide surface and an outlet guide surface for the web, is variously inclined by rotation about an axis tangential both to the inlet surface and to the drum, in order to move the web transversely to the inlet surface through a required distance which can be varied at will within a required range.

Systems for connecting telecommunications infrastructure lines to telephones, handsets, computers, telecopy machines and other end user interfaces or consumer electronics devices in a residence or business. Systems according to the present invention include Network Control Units which form the center of a star topology and which communicate via RF link with Wireless Access Units and handsets. Wireless Access Units feature an interface, such as, for example, a standard telephone jack, for accommo...

The present invention includes novel barrier webs that have certain desirable physical qualities such as water resistance, increased durability, improved barrier qualities and the like. The present invention further comprises a barrier web comprising a web that has been treated with a curable shear thinned thixotropic polymer composition, the fabric being adapted to be substantially impermeable to liquids, permeable to gases and impermeable to microorganisms. The barrier webs of the present inve...

A web member for use in reinforcing a structural framework, such as a truss or a wall panel, comprised of beams and web members secured to the beams. A web member includes a support section with a longitudinally extending tab on each end thereof. The tabs are bent to engage inside surfaces of the beams for securement thereto as with screw fasteners whereby the web member is secured to and extends between beams of the truss.

The present invention relates to a method for coating of a fibrous web. According to the method a coating color with pigments is applied to the surface of the web and dried in order to form a coated web. The invention comprises using a coating color which contains pigments having a steep particle size distribution, a maximum of 35% of the pigment particles being smaller than 0.5 .mu.m. The coating color is spread on the surface of the web with a coating speed of at least 1450 m/min, preferably o...

Composite nonwoven webs are provided having two distinct regions extending adjacent one another in the machine direction of the web; the first region is formed from first continuous filaments and the second region is formed from second continuous filaments. The interface of the first and second region is formed from a mixture the first and second continuous filaments in a confluent relationship with one another and such that the two distinct regions form a unitary nonwoven web. The respective fi...

A roll for calendars or super-calendars has a tubular rotatable roll shell (20) and a stationary core (30) extending through the roll shell. The space (31) between the roll shell and the core is divided by means of several peripheral seals (32) into numerous annular chambers (31a, 31b . . . ). A flow of fluid is guided through each of the annular chambers. The fluid temperature in each annular chamber is independently controllable. Consequently the roll shell (20) can be heated by the fluid to d...