An idler roller consists of a roller body which comprises a plastic core having a bore to accommodate an idler shaft and a shell of polyurethane located around the core to provide a tubular load-bearing wall. Bearing assemblies are located within the roller body at each end thereof for receiving the idler shaft. A channel-shaped metallic insert is embedded in the shell, the insert spiralling aroun...

PURPOSE:To obtain a uniform image free frim unevenness in development without increasing manufacturing cost by bringing tracking rolls into uniform contact with a photosensitive body. CONSTITUTION:The tracking rolls 10-13 fixed to the outside of side frames 7, 8 are rotated in contact with the photosensitive body 1 as it rotates. Screws 14, 15 are brought into contact with the outside wall of a ho...

PURPOSE:To obtain a compact computer cartridge with which ICs different in specification can be connected to a common cartridge to use the ICs by providing a circuit substrate containing plural selectable circuits and a changeover switch which can select and switch those circuits. CONSTITUTION:A PROM20 and a changeover switch 14 are attached by soldering on a circuit substrate 18 provided in a car...

A stable electrochemical device for monitoring a component in ambient atmosphere or a gas stream is of the kind which employs a deliquescent electrolyte, is suitable for monitoring and/or analysing hydrogen fluoride, employs a bromide/bromate electrolyte, and employs a cathode which has a large contact area with the electrolyte/atmosphere or gas stream when compared with the anode. The anode can b...

The present invention relates to a two-part gunning refractory composition wherein fine powders of a refractory aggregate and superfine refractory powders are previously made into the form of a slurry containing therein a deflocculant, thereby reducing the amount of aluminous cement and also reducing the amount of water to achieve a deposit applied by gunning having a quality comparable to one pro...

Bolts (10, 13) of material such as fabric, supported in open-topped bearing elements (6, 14) are exchanged by apparatus comprising a carrier (24). The carrier (24) has closable openings for engagement with spindle ends (8) projecting from the bolts (10, 13). When the carrier (24) has engaged the bolts (10, 13), it is raised (arrow 28), rotated about 180 DEG (arrow 26) and lowered (arrow 28), so c...

Air is drawn into a turbine through a particle separator 10 which normally seats in an opening 14, but if the separator clogs then it is moved by power means 18 in a direction opposed to the air flow 16, to open a by-pass. As shown the separator pivots at 17, but in Figures 3,4 (not shown) the separator is moved rectilinearly out of opening 14. In Figures 5,6 copy in opposite directions. Means 18 ...

A bend limiter, which can also be used to carry tensile load without undergoing extension, comprises a tube whose wall has the form of a bellows in that it has alternating flared and wasted portions. The diameter of each flared and each waisted portion is fixed but the portions are free to move relative to one another to a limited extent, in a direction perpendicular to the axis of the tube. The l...

A surface acoustic wave device comprising a semi-conductor substrate 7, a piezoelectric film 8 disposed on the semi-conductor substrate, an input transducer 2, and an output transducer 3, includes a plurality of metal electrodes 10A, 10B, 10C, 10D disposed between said input and output electrodes, means for applying bias voltages to each of said metal electrodes, and means for regulating said bias...

An improved winding apparatus for winding wires and the like, which includes a flyer having a passage for passing the wire through it and driven for rotation around a winding form or winding frame for winding the wire onto the winding form, a roller movably mounted on the flyer for movement in approximately radial direction from a rotational axis of the flyer so as to depress the wire disposed app...

Material, such as fabric, is unwound from a bolt (7) in a magazine (6) and deposited on a table (1). The magazine (6) comprises a chain (8) having suspension elements (11, FIG. 2) for receiving spindles (10) of the bolts (7). The required bolt (7) is locked in an unwinding position and held firmly, but rotatably, by supporting means (14) and retaining means (18), all in the form of ball bearings. ...

PURPOSE:To improve the efficiency of a connecting operation by letting off a pair of cores in the order of connection from plural pairs of cassettes contg. set of the cores with every plural pieces according to the order of connection in a way as to permit taking-out of said cores in the order of connection and supplying the cores from the succeeding cassettes. CONSTITUTION:The cassettes 1 contg. ...

An 1,3,4-thiadiazole-5-thiol ester of the formula, wherein R is a hydrogen atom or a methyl group, a process for their preparation and a process for preparing a cephalosporin compound of the formula, +TR wherein R is the same as defined above, using the above described 1,3,4-thiadiazole-5-thiol ester.

Novel 5-fluorouracil derivatives of the general formula: wherein R1, R2 and R3 each represent hydrogen atom or methyl group, and R4 represents a straight or branched alkyl or alkenyl group, which has low toxicity and improved antitumor activity, and novel antitumor preparations containing the said 5-fluorouracil derivative.

PURPOSE:To prepare 5[50(4-carbamoyl-4-piperidinopiperidino)propyl]-10,11dehydro-5H-dibenz [b,f]azepin, usefl as psychotherapeutic drugs, by the hydrogenation of the corresponding 10, 11-ene compound.

PURPOSE:To prepare 5-[3-(4-carbamoyl-4-piperidinopiperidino)propyl]-10,11dihydro-5H-benz[ b,f]azepin, useful as psychotherapeutic drugs, by treating the corresponding cyano compound with hydrogen peroxide.

The pesticide comprises, as active ingredient, a 2-cyclopropylamino-4-amino-6-hydroxylamino-s-triazine which optionally contains further substituents, or an acid addition salt thereof, with a strong mineral acid. The composition has a larvicidal activity against insect larvae. It causes the destruction of the egg larvae and prevents adults from hatching from the pupae, and is particularly suitable...

PURPOSE:To provide a slow-release bleomycin solid preparation which can be administered topically, and keeps effective local concentration for a long period without causing side effects such as inflammation at the normal tissues, composed of a carcinostatic agnet bleomycin, beeswax, a higher fatty acid triglyceride, and a polyoxyethylene derivative. CONSTITUTION:A mixture comprising (A) bleomycin,...

PURPOSE:To supply a wire correctly by giving vibration to a wedge when the wire is supplied through a wire supply hole in the wire bonding method where the electrode of a semiconductor device is assembled by ultrasonic bonding with the wire. CONSTITUTION:When clamper 6 is closed to supply wire 3 between heel 5 of wedge 4 and electrode 2 of chip 1, ultrasonic vibration is given to wedge 4. After th...