Abstract: There is provided a stress-reducing device and a method of using same. The stress reducing device comprises an insert positionable, in use, proximate to an area of a fluid-carrying conduit that experiences increased tensile stress concentration, the insert being configured to apply, in use, compressive force onto the area.

Abstract: The web-fed rotary offset printing machine utilizes a blanket belt onto which two or more colors are offset and which prints the two or more colors at once onto a material web. The blanket belt travels about guide rollers which have a lesser mass and/or a lesser diameter than the form cylinders which offset the colors onto the blanket belt. If several impression nips—blanket to web nips—are formed along the travel path of the material web, they are located so close to one another that fan out register errors cannot occur.

Abstract: The web-fed rotary offset printing machine utilizes a blanket belt onto which two or more colors are offset and which prints the two or more colors at once onto a material web. The blanket belt travels about guide rollers which have a lesser mass and/or a lesser diameter than the form cylinders which offset the colors onto the blanket belt. If several impression nips—blanket to web nips—are formed along the travel path of the material web, they are located so close to one another that fan out register errors cannot occur.

Abstract: A guide tube is fixed adjacent opposite ends in outer and inner covers of a nozzle stage segment. The guide tube is serpentine in shape between the outer and inner covers and extends through a nozzle vane. An insert is disposed in the nozzle vane and has apertures to accommodate serpentine portions of the guide tube. Cooling steam is also supplied through chambers of the insert on opposite sides of a central insert chamber containing the guide tube. The opposite ends of the guide tube are fixed to sleeves, in turn fixed to the outer and inner covers.

Abstract: A method and an apparatus are provided for absorbing lateral sideframe vibration in printing units. A member is connected between two sideframes of a printing unit. According to one embodiment, the member is a rod and a mass slides on the rod. The mass is biased between two springs and a unit frame tie surrounds the rod. According to another embodiment, collars are disposed on the rod for adjusting the preload of the springs and additional masses may be placed on the mass sliding on the rod. A further embodiment includes a unit frame tie acting as the member and a rod connected to the unit frame tie. A mass is movable on the rod.

Abstract: A guide tube is fixed adjacent opposite ends in outer and inner covers of a nozzle stage segment. The guide tube is serpentine in shape between the outer and inner covers and extends through a nozzle vane. An insert is disposed in the nozzle vane and has apertures to accommodate serpentine portions of the guide tube. Cooling steam is also supplied through chambers of the insert on opposite sides of a central insert chamber containing the guide tube. The opposite ends of the guide tube are fixed to sleeves, in turn fixed to the outer and inner covers.

Abstract: The bearing lubrication system for a cylinder in a printing machine pumps oil from the driving gear side to the roller bearing. The gear side has a gear box and an oil sump with a supply of lubricating oil. An oil loop connects the bearing housing with the gear box fluidically via dry quick disconnects. The dry disconnects allow quick removal of the printing machine cylinder for maintenance or for print job retrofitting. As the printing machine cylinder rotates (it is driven from the gear box), oil is pumped from the gear box into the bearing housing. The bearing is thus lubricated and cooled. The oil is discharged from the bearing housing and returned to the gear box sump.