An apparatus for heating a roll for the heat treatment of textile material. A drive shaft for the roll is hollow and a fixed pipe for the supply of heated lubricating oil is inserted through said hollow shaft and opens into the interior of the roll. The clearance between the inner wall of said hollow shaft and the outer wall of said fixed pipe and/or a guide hole leading from the interior of the roll or of said hollow shaft to the interior of a housing serves as a circulation path through which ...

The current invention discloses photocopying methods and systems for substantially eliminating shadows caused by uneven surfaces of an original by the use of a light diffusing element or a carrier sheet which automatically triggers the associated photocopying parameters. The light diffusing element has a marker or an identification code which is detected by a sensor placed along a paper path, and the marker contains various type of information used for adjusting the photocopying conditions assoc...

A manufacturing method of an ink-jet head comprises the steps of: laminating with an adhesive a first plate having a nozzle hole that ejects an ink droplet and a second plate having a communication hole; and applying pressure to the first and second plates in their laminated direction. In the step of laminating, an opening of the nozzle hole is included within an opening of the communication hole on an interface between the first plate and the second plate. In the step of applying pressure, pres...

A vibration control device including a bracket, and a vibration control body. The bracket has a stay portion for connection to an engine, a flange portion formed at one end of the stay portion, and a stabilizer portion to damp large magnitude movements of the body. The vibration control body includes an insulator made of anti-vibration rubber or other resilient material, an upper plate, and a stopper portion. The flange portion preferably slidably receives the upper plate in order to couple the ...

A steel slag cement manufactured by reducing a steel slag discharged from a steelmaking furnace such as a converter, an open-hearth furnace or an electric arc furnace, and then oxidizing the steel slag thus reduced, which consists of, in weight percentage: CaO : 68 to 72%, SiO.sub.2 : 22 to 26%, Al.sub.2 O.sub.3 : 1 to 3%, Fe.sub.2 O.sub.3 : 0.2 to 1.0%, P.sub.2 o.sub.5 : 0.1 to 0.6%, TiO.sub.2 : 0.4 to 0.9%, MnO : trace to 0.4%, MgO : 0.3 to 3.0%, CaF.sub.2 : 0.3 to 2.0%, and the balance incide...

A process for recovering and utilizing useful substances from a molten metal produced, when manufacturing a steel slag cement from a steel slag discharged from a top-blowing oxygen converter, during a reduction treatment of steel slag, which comprises the steps of: subjecting, in an acidic refining furnace, said molten metal to a primary oxidation refining treatment and a secondary oxidation refining treatment to recover a primary slag containing a large amount of TiO.sub.2 and SiO.sub.2 and a s...

An IP communication network system has a plurality of autonomous systems, configuring IP networks of domains independent of each other, for performing interior- and exterior-forwarding of IP packets. The plurality of autonomous systems include a plurality of border relay devices positioned at borders between the IP networks. Each of the plurality of border relay devices includes a discarding unit for discarding, if the IP packet forwarded is an unauthorized intrusion packet, this unauthorized pa...

To reduce an overhead of the interrupt on a processor associated with packet send and receive control in a network, a packet send command chaining unit is provided. Based on the control field in each packet send command, a send node controls an interrupt request to the processor in the packet level and sends a packet set with the control information to a receive node. Based on the control field in the received data packet, the receive node controls a receive circuit interrupt request, thereby re...

An inverter device for variably controlling an operating frequency of an electric motor, which drives a compressor in a refrigerating cycle. the inverter includes a box-like resin case, having a metal film for shielding being applied or plated on a surface thereof and having a step portion on which a terminal block for the motor is arranged. A first substrate having mounted thereon power semiconductor devices constituting a converter and an inverter so as to be immersed in gel, and the first sub...

A refrigerating apparatus comprises: a first substrate, on one surface of which an active converter and an inverter are mounted, and on a reverse surface of which a radiation fin is closely fixed; a second substrate, on which a microcomputer, a current detecting mechanism, and a terminal block are mounted; a resin casing covering sides of the first and second substrates and provided with a step permitting the terminal block to be arranged thereon; and a third substrate, on which an interface con...