Sanwa Kokan Co., Ltd

Sony Corporation

Nippon Steel Corporation

Ebara Corporation

Idemitsu Kosan Company, Limited

Asahi Denka Kogyo K.k.

Sanwa Kokan Kabushiki Kaishas

Toshio Sakurai

Yutaka Sunaga

Shoji Shimada

Mitsuaki Iino

Tadashi Koizumi

Yoshio Hayashi

Yoshiro Tomoda

Takuro Handa

Kouji Aoyagi

Akio Nishihara

Hidekatsu Katoh

Yoshiharu Kamimura

Makoto Yoto

Tusnehiro Kashima

Koichi Higeta

Kazumi Aoki

A method of and a device for cold drawing seamless metal tubes, each tube having an upset portion on both ends. The draw bench comprises a reducing die, a die control unit, a plug control unit including a plug and a draw unit. The reducing die has an internal surface including an inlet portion which tapers rearwardly, a small diameter bearing portion and an oppositely inclined outlet portion. A plug includes a rearwardly tapered portion, a large diameter bearing portion, a forwardly tapered portion, a small diameter cylindrical portion, a rearwardly tapered portion and a large diameter cylindrical forward bearing portion. The plug control unit is mainly movable with respect to the die control unit by a pair of hydraulic units, but the control unit is also movable with respect to the plug control unit for changing a cross sectional reducing area between the reducing die and the plug.

Methods for cold drawing seamless metal tubes each having an upset

The present invention relates to a method and a system for lubrication of a mechanical system and the like used under the severe conditions, and includes a lubricating oil feeding device to the mechanical system, a lubricating oil extracting device, a device for analyzing properties of the lubricating oil thus extracted and a device for controlling in accordance with the result of the analysis. As commensurate to the degree of the extracted lubricating oil, new lubricating oil is fed into lubricated portions from the feeding device in response to a command from the controlling device, while, the lubricating oil is extracted from the lubricated portions to renew the lubricating oil.

Method and system for lubrication

A method of cold drawing seamless metal tubes each having an upset portion on each end. A draw bench used for carrying out the method of this invention comprises a die control device, a plug control device including a plug having large and small diameter bearing portions and a draw unit. The die control device and the plug control device are movable with each other for changing a cross sectional reducing area between the reducing die and the plug. The method is characterized in that the cross sectional reducing area between the reducing die and the plug is preferably changed in accordance with the desired forms of a mother tube to be drawn by longitudinally transferring the reducing die and the plug and fixing them at the selected positions.

Method of cold drawing seamless metal tubes each having an upset portion

A draw bench for cold drawing seamless middle tubes having upset portions on both ends. The draw bench includes a die control device, a plug control device including a plug having large and small diameter bearing portions and a draw unit. The die control device and the plug control device and the plug control device are moveable with respect to each other for changing the cross-sectional reducing area between the reducing die and the plug.

Device for cold drawing seamless metal tubes having upset portions on

A portable word processor incorporates a keyboard for typing-in data relating to a textual document, a microprocessor for processing the data, and a microcassette recorder for storing each page of the textual data when typing of the page is complete. A half-line character display is situated on an operating panel of the word processor above the keyboard. The microprocessor includes a text buffer memory having a capacity corresponding to one page, favorably 1800 characters or 66 lines. A cassette recorder interface is included to control operation of the cassette during transfer of textual data from the text buffer memory for storage on the microcassette tape, and transfer of the data to the text buffer memory from the tape for editing and revision of the textual document. The microcassette recorder can store pages of the textual data intermittently with voice recording, such as dictation, on the same tape.

Word processor

Rust-proof lubricant compositions for coating metals comprising mono, di- or tri-partial esters synthesized from pentaerythritol and fatty acids having more than 6 carbon atoms including the corresponding isomers, or a mixutre thereof as chief constituents.

Rust-proof lubricant compositions

A compound having the following general formula (I); ##STR1## wherein R.sub.1 and R.sub.2 stand for a hydrocarbyl group having from 1 to 24 carbon atoms, x is a number of 0.5 - 2.3, useful as an additive for lubricants.

Sulfur containing molybdenum dihydrocarbyldithiocarbamate compound

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Yokohama, Japan

Toshio Sakurai