baber/WOPTO huggingface dataset:
Patent GB-1477378-A (GB)
Title: Manufacture of olefin polymer fibrids
IPC: D01F6/04
Filed: 1974-12-19
Abstract: 1477378 Making olefin polymer fibrids BASF AG 19 Dec 1974 [21 Dec 1973] 54854/74 Heading C3P Olefin polymer fibrids are made by dissolving an olefin polymer in an organic solvent under pressure and at a temperature which is above the boiling point of the solvent at standard pressure, and flashing the solution by passing it through an orifice into a space which is at a lower pressure, the solvent used, being pentane or a mixture containing at least sufficient pentane to cause the olefin polymer to separate in the form of discrete fibrids on flashing. Preferred solvents are naphtha cuts containing 5-50 wt. per cent pentane and mixtures of n-pentane and isopentane. The concentration of the original solution may be 10-25 wt. per cent and the dissolution may be carried out at 100-180 C. at 10-20 atmospheres. The space into which the solution is flashed may contain a precipitant or non-solvent for the polymer, which may be the same as the solvent used to form the solution (being a non-solvent at the lower pressure). The treatment of polyethylenes, and an ethylene/ n-butyl acrylate copolymer, is exemplified.
Patent GB-1198707-A (GB)
Title: Coupled-Cavity Velocity-Modulated High-Frequency Electron Discharge Devices
Inventor: SHIVELY JAMES FRANKLIN
IPC: H01J23/24
Filed: 1967-12-05
Abstract: 1,198,707. Travelling-wave tubes. VARIAN ASSOCIATES. 5 Dec., 1967 [8 Dec., 1966], No. 55183/67. Heading H1D. A slow wave structure for a travelling-wave tube comprising a number of coupled cloverleaf type cavities is characterized in that the cavities are coupled to a lossy terminated waveguide to suppress unwanted modes. Fig. 3 shows a section of a cloverleaf cavity 29 including four finger sections 32 and coupled by T-shaped slots 42 to an adjacent cavity (not shown). Arcuate waveguide sections 50 and 51 are coupled by irises 52 to diametrically opposed leaf portions 40; the waveguides have a cut-off frequency between the upper edge of the operating band and the #-point of the fundamental operating mode and are tapered from maximum height at the coupling regions to zero height at the terminated ends, and the inner surfaces of the waveguide are coated with lossy material. The walls of the slots 42 may also be coated with lossy material to suppress slot modes. In a modification, Fig. 4 (not shown), the waveguides extend in opposite directions from a common input, and the coupling slots are of elongate form. In a further modification, Fig. 5 (not shown), waveguides similar to those in Fig. 3 are coupled to each leaf portion, the waveguides being half a wavelength long at the #-point frequency. In the travelling-wave tube illustrated (Fig. 1, not shown) the slow wave structure is provided with a coaxial line input and a waveguide output. As an alternative the tube may be of the hybrid type with a klystron input section.
Patent GB-1145310-A (GB)
Title: Process for producing 5'-purine nucleotides
IPC: C12P19/32
Filed: 1966-12-09
Abstract: 1,145,310. 5<SP>1</SP>-Purine nucleotides; fermentation process. KYOWA HAKKO KOGYO CO. Ltd. 9 Dec., 1966 [10 Dec., 1965], No. 55192/66. Heading C2C. A process for the production of 51-purine nucleotides comprises culturing a micro-organism of the species Micrococcus glutamicus in an aqueous nutrient medium under aerobic conditions at a temperature of 25‹ to 37‹ C. and a pH of 5À5 to 8À0, at least one surface-active agent having been added to the medium. The addition is preferably made at the initiation of culturing. Specified surface-active agents are polyoxyethylene sorbitan fatty acid esters (C 12 -C 18 ) and the alkyl amine salts thereof (C 8 -C 18 ), polyoxyethylene alkyl amines (C 12 - C 18 ), polyoxyethylene alkyl ethers (C 12 -C 18 ), polyoxyethylene alkyl allyl ethers (C 8 -C 18 ), alkyl trimethyl ammonium halides (C 12 -C 18 ), alkyl benzyl dimethyl ammonium halides (C 12 - C 18 ), alkyl pyridinium halides (C 12 -C 18 ) and alkyl betaines (C 12 -C 18 ). Preferably 50- 2000 γ of surface-active agent per one ml. of culture medium is added. The example describes the preparation of 5<SP>1</SP>-inosinic acid.
Patent GB-1332027-A (GB)
Title: Electrophotographic copy process
IPC: G03G13/26
Filed: 1971-11-30
Abstract: 1332027 Electro-photographic processes A B DICK CO 30 Nov 1971 [1 Dec 1970(2)] 55549/71 Headings G2C C17C2 and C17D2 An electro-photographic process utilizes two or more receptors, each having a coating containing a photo-conductor, a binder, a sensitizing dye and a dispersed dye, the dispersed dyes in different receptors being of different colours. The process comprises electrostatically charging the receptors, imagewise discharging them in accordance with those areas of an original complementary in colour to the respective dispersed dyes, developing each receptor with a toner, activating the toner (preferably by heating) whereby it becomes a solvent for the dispersed dyes, and contacting a copy sheet with each receptor in turn whereby the dispersed dyes are imagewise transferred to the copy sheet to form a multi-colour image. The toner may be activated by heat, solvent or vapour, preferably the toner images are pre-heated and then transferred to the copy sheet by hot pressure rollers. Toners. Preferred toners are: antipyrine; 1-allyl-2 thiourea; vanillin; 1, 6-hexanediol; 1, 10-decanediol; ammonium acetate; ethyl urea; acetamide; benzohydrol; 2, 2-dimethyl-1; 3-propanediol; ammonium formate and pyrazine. The toner may be used dry or in liquid e.g. Isopar (R.T.M.) containing a methylmethacrylate copolymer.
Patent GB-1137150-A (GB)
Title: Web rewind machine
IPC: B65H19/22
Filed: 1966-12-12
Abstract: 1,137,150. Winding webs. CAMERON MACHINE, S.A. 21 Dec., 1966 [21 Dec., 1965], No. 55615/66. Heading B6B. In a single-drum web-winding machine for winding longitudinally slit webs, a platform 54 is provided on either side of the drum 26. Each platform supports horizontally sliding carriages 48, each carriage carrying a pair of rewind arms 36 which are adjustable transversely on tracks (50, Fig. 1). A pneumatic cylinder 74 associated with each carriage 48, loads each web-roll 28 supported by the arms 36 against the drum 26. When the web-rolls 28 have achieved the required diameter, hydraulic cylinders 112 pivot the platforms 54 about horizontal axis to lower the completed webrolls 28 on to transversely moving conveyer belts 116. An hydraulic motor 44 is provided to drive each web-roll 28. A fluid pressure control valve (88, Fig. 2) is associated with each web-roll 28, and regulates the quantity and pressure of liquid supplied to the hydraulic motor 44. The setting of the valve (88) is controlled by two detectors. The first detector comprises a potentiometer (84, Fig. 5) mounted on the platform 54, the slider of which is connected to the carriage 48. The signal from the potentiometer, which is dependent on web-roll diameter, controls the quantity of liquid entering the motor 44, and therefore the speed. The second detector comprises a cam (90, Fig. 5) mounted on the platform 54, cam follower (94) of which is mounted on the carriage 48. The signal transmitted from the cam follower controls the pressure of the liquid entering the motor 44, and therefore the torque.
Patent GB-1473310-A (GB)
Title: Electric bed warmer
IPC: H05B3/42
Filed: 1976-08-10
Abstract: 1473310 Bed warmer C WHITE 10 Aug 1976 55966/73 Heading H5H A bed warmer comprises a rigid metal, e.g. stainless steel bottle, filled with oil and containing a rigid immersion heater provided with a thermostat. The immersion heater is of metal sheathed or cartridge type and the thermostat is accessible for adjustment. A socket on a supply cable engages terminal pins on the immersion heater. The bed warmer may be energized whilst the user is in bed or may be energized before the user retires to bed.
Patent GB-1374588-A (GB)
Title: Dipeptide ester compound
Inventor: NAKAJIMA N
IPC: A23L27/30
Filed: 1971-12-03
Abstract: 1374588 Sweetened orange formulation TAKEDA YAKUHIN KOGYO KK 3 Dec 1971 [5 Dec 1970 18 Dec 1970 26 Aug 1971 24 Nov 1971] 56222/71 Heading C6E [Also in in Divisions A2 and C2] A sweetened orange formulation for dissolution in water consists of concentrated juice of mandarin oranges, D-sorbitol powder, citric acid, Vitamin C, orange essence and L-aspartyl - aminomalonic acid methyl I-ethylpropyl diester (artificial sweetener).
Patent GB-1152879-A (GB)
Title: A method of and Apparatus for Coating Anode Blocks with Aluminium
IPC: C23C4/129
Filed: 1966-12-16
Abstract: 1,152,879. Coating apparatus. METALLGESELLSCHAFT A.G. 16 Dec., 1966 [29 Dec., 1965], No. 56513/66. Heading B2L. [Also in Division C7] Carbon blocks 1, intended for use as anodes in aluminium melts, are coated with aluminium by an array of spray guns 7, 7', 7" arranged in an arch so as to generate a curtain of atomised aluminium, the blocks being kept stationary while the array is moved backwards and forwards by ram cylinders and the guns are moved sideways and up and down by further ram cylinders 8, 8', 8". When the sides of a block are coated it is moved 90‹ about a vertical axis and the operation repeated. The top surface receives a double coat and the sides one each.
Patent GB-1397560-A (GB)
Title: Measurement of curvature in ducts
IPC: G01B7/28
Filed: 1971-12-06
Abstract: 1397560 Measuring curvature of ducts POST OFFICE 6 March 1973 [6 Dec 1971] 56553/71 Heading G1M A system for measuring the longitudinal curvature of a duct comprises, a steel tube E containing a transducer and mounting self centralizing wheels G, and a measuring feeler arm F movable radially of the duct and connected to the transducer and monitoring gear, the tube E being drawn into position through the duct by a rope J and rotated by a shaft H. The radius of curvature is given by R ={¢<SP>2</SP> + h<SP>2</SP>}/2h where h is the chordal height measured by the feeler F and 1 is the chordal length between the sets of wheels G. Heavy longitudinally mounted helical springs and thrust collars mounted fore and aft on the tube E press outwardly pivoted arms carrying the wheels G, Figs. 3 and 6 (not shown), so that the wheels contact the wall of the duct and the axis of rotation of the tube is held central by means of the equally applied forces on the wheel arms. The feeler wheel (43) which also normally contacts the duct wall is withdrawn when the tube is moved by a crank lever arrangement (49), (50) operated by pull on the rope J, Fig. 8 (not shown), and as it withdraws a micro-switch (55) disconnects the output from the transducer 54. The transducer is connected by cable cores (36), Fig. 6 (not shown) within the tube E to internal slip rings (32) connected to external terminals (35). A rotary switch 19, 20, 21, 22 generates a signal for every rotation of the transducer so as to provide a datum reference.
Patent GB-1451656-A (GB)
IPC: F16H19/00
Filed: 1973-12-11
Abstract: 1451656 Toothed gearing NADELLA and A PITNER 11 Dec 1973 [22 Dec 1972] 57368/ 73 Heading F2Q In a rack and pinion steering gear, a pinion 8 is formed on a shaft 7 between a cylindrical bearing portion 17 having a cylindrical bearing portion 6 having axially extending lubricating grooves 10 extending from between the pinion teeth at the depth of the root circle. The bearing portion 6 engages a sheet metal cup 3 which is located by an anchoring spider 4, and the bearing portion 17 is mounted in a cylindrical roller bearing 13.
Patent GB-1150910-A (GB)
Title: Improvements in or relating to Implantable Power Sources
Inventor: KAISER NIELS EDMUND GULDBAEK
IPC: A61N1/378
Filed: 1966-12-23
Abstract: 1,150,910. Surgically implantable devices. N. E. G. KAISER. 23 Dec., 1966 [30 Dec., 1965; 2 Aug., 1966], No. 57686/66. Heading A5R [Also in Divisions 2F and H4L] In a device for controlling artificial organs of the body in response to myoelectric signals a rectifier circuit comprises a pick-up coil 4 receiving energy from a transmitter, and a transistor 1 which rectifies the energy pickedup to provide a d.c. output across smoothing capacitors 17. The emitter of the transistor may be connected to a tapping on the coil as shown, or alternatively fig. 2 (not shown). The emitter and base may be connected to opposite ends of the coil, with the d.c. output taken between base and collector. The d.c. is used to power a frequency modulated oscillator 19, and in use the unit is encapsulated and emplarted in a human body. In use the modulating signal at terminals 13, 14 is derived from a muscle and the frequency modulated signal is picked up by an external receiver and is used to power an artificial organ. The input signal picked up by coil 6 is provided by an external oscillator. Coils 4, 26 may employ common ferrite cores figs. 3,4 (not shown).
Patent GB-1372743-A (GB)
Title: Draw and buffing gear
IPC: B61G11/18
Filed: 1971-12-15
Abstract: 1372743 Combined buffer and draw gear RINGFEDER GmbH 15 Dec 1971 [15 Dec 1970] 58298/71 -Heading B7T Buffer and draw gear, for use with an automatic central buffer coupling of a rail vehicle 16, comprises a spring device consisting of a housing formed of two parts 4a, 4b displaceable telescopically one within the other against the action of a spring, e.g. of the annular friction type, within the housing; a stirrup operatively connected to the spring device and consisting of two stirrup eyes 2, 3 joined to two spaced members 1 which have aligned apertures for receiving a coupling pin 9 to thereby connect a shaft 17 of the coupling with the spring device; a pressure plate 8 abutting one end of the spring device and slidable within the eyes 2, 3, the plate being adapted to engage on the undercarriage of the rail vehicle in use; slide members 11 fitted, e.g. removably, on the members 1 for co-operation with similar slide members on the rail vehicle; and a supplementary member 12 removably attached to the plate 8 and providing an abutment surface for the adjacent end of the coupling shaft 17. The detachable mounting of the supplementary member 12 on the plate 8 allows supplementary members with abutment surfaces of various forms (see also Figs. 5 and 6) to be interchangeably fitted in the gear to thereby adapt the gear for use with couplings having differently shaped coupling shaft ends. The supplementary member 12 may be fitted to the plate 8 by means of pins, or may alternatively have chamfered edges engaged between correspondingly shaped flanges on the plate 8 (see Fig. 8, not shown). Pressure members 14 may be interposed between the pin 9 and the spring device in use.
Patent GB-1315724-A (GB)
Title: Low-calorie sugar substitute
IPC: A23L27/30
Filed: 1970-12-08
Abstract: 1315724 Sugar substitute DEUTSCHE LAEVOSAN-GES C F BOEHRINGER & SOHNE GmbH & CO KG 8 Dec 1970 [9 Dec 1969] 58302/70 Heading A2B A low calorie sugar substitute composition comprises (a) fructose and/or xylitol and (b) a synthetic sweetener in a sweetening value ratio of (a) : (b) of 50:50 to 90:10. The synthetic sweetener is preferably saccharin.
Patent GB-1449280-A (GB)
Title: Reciprocating piston compressor
IPC: F04B49/24
Filed: 1973-12-18
Abstract: 1449280 Controlling reciprocating compressors M I FRENKEL 18 Dec 1973 58462/73 Heading F1N In a compressor comprising a piston 4 reciprocable in a cylinder 3 having hollow cylindrical inlet and outlet valves 1, 2 each comprising a stack of annular elastic laminae 8 and alternating rigid annular seats 9 therefor, a valve-member 13 or piston (21) is movable within the cylindrical space 15 in one of the valves in order to effect a change in capacity. When the valve-member 13 is moved from its position shown either manually or by actuating mechanism 17, a chamber 12 is placed in communication with the working space 6 to reduce the capacity. In an alternative, Fig. 3 (not shown), the valve is movable by a fluid actuated diaphragm (34) and connects the working chamber to an inlet chamber 5 to reduce the capacity to zero. By using the piston (21), Fig. 2 (not shown) instead of the valve-member 13, a variable volume dead space is connectible to the working space 6.
Patent GB-1453732-A (GB)
Title: Current mirror amplifiers
IPC: H03F3/45
Filed: 1973-12-18
Abstract: 1453732 Transistor amplifying circuits RCA CORPORATION 18 Dec 1973 [26 Dec 1972] 58557/73 Heading H3T A current mirror, i.e. a current amplifier with a current gain determined by the transconductances of equally biased devices such as transistors 23, 24, has a first input terminal 21, Fig. 1, a common terminal 29, and an output terminal 22<SP>1</SP> first and second transistors 23, 24 respectively having similar connections to the first input terminal 21 and having connections of their collector electrodes respectively to the first input terminal 21 and output terminal 22<SP>1</SP>, first and second resistive elements 25, 26 connecting the respective emitter electrodes of the first and second transistors 23, 24 to the common terminal 29 and a third resistive element 28 of substantially the same resistance as the first resistive element connected between a second input terminal 22 and the output terminal 22<SP>1</SP>. In the embodiment, the arrangement is driven by and provides load circuits for, a pair of fieldeffect transistors 11, 12 in long-tailed pair amplifier connection, and output terminal 22<SP>1</SP> forms the base connection of a grounded-emitter output stage 30. A further resistor 27 of the same value as resistors 25, 26, 28 is connected in the collector circuit of transistor 23, while potentiometer 40 allows for any final unbalance in the circuit being removed. In a second embodiment, a further transistor 59 is arranged with its collector to emitter path in series between the collector of transistor 54 and the output terminal 22<SP>1</SP> and its base connected to input terminal 21. In this modification, the bases of transistors 53, 54 are biased from input terminal 21 via the base-emitter path of transistor 59 and a compensatory diode 57, which may comprise a transistor with base and collector strapped, is connected in the collector circuit of transistor 53: the output stage now comprises a Darling- ton pair 31, 32. The Specification also describes a modification of the circuit of Fig. 2, in which the bases of the two current-mirror transistors (63, 64, Fig. 3, not shown) are returned to the collector of the first transistor and the collector of the first transistor (31) in the output pair is connected directly to a power supply. The fieldeffect transistor pair may also be replaced by bipolar transistors.
Patent GB-590525-A (GB)
Abstract: 590,525. Lavatory basins. BRADLEY WASHFOUNTAIN CO. Feb. 20, 1945, No. 4272. Convention date, Jan. 15, 1944. [Class 26] In a foot-operated wash-fountain having a spray head 20, the supply of waterthereto being controlled by a shut-off valve 231 in valve casing 32 opened by means of a link 95 connected to one end of a lever 90 pivotally mounted on a fixed post 92 upon which is slidably mounted a guide 75 operated by a foot-treadle 65, a resilient and yieldable coupling in the form of a spring 93 and a rod 84 fitting loosely in apertures in a leverend 89 and a guide 75 is located between said guide and lever. Levers 66 connect a treadle 65 with the guide 75 at which end they are forked to engage the pins 72, the guide being normally held in its lowered or " valve closed " position by a spring 76. On depressing the treadle 65 at any point, the guide 75 rises against compression of the spring 76, and through the action of the spring 93 of the yieldable coupling raises the end 89 of the lever 90 to pull down on the link 95 thus canting the shaft 40 downwardly to make the attached disc-head 47 pivot about one point on the flange 45 ; this forces the piston 39 to flex the diaphragm 11<SP>1</SP> and open the pilot valve 26<SP>1</SP> allowing the pressure of water in an inlet 5<SP>1</SP> to open a valve 23<SP>1</SP> so permitting water to flow into the outlet 6<SP>1</SP> and to pipe 31 and spray-head 20. Releasing foot pressure on the treadle spring 76 returns the guide 75 to the base and rod 84 pulls down the lever 90 so closing valve. Applications are described to (a) circular basins having water supply from above and below, (b) semi-circular basins with water supply from below. U.S.A. Specifications 1,574,700 and 2,243,957 are referred to.
Patent GB-1340677-A (GB)
Title: Method for the continuous manufacture filling and closure of thermoplastic containers
IPC: B29C49/34
Filed: 1970-12-14
Abstract: 1340677 Blow-moulding and filling containers HOLSTEIN & KAPPERT MASCHINENFABRIK PHONIX GmbH 14 Dec 1970 [24 Dec 1969] 59277/70 Heading B5A Sterile thermoplastics containers are moulded, filled and sealed by extrusion-blow-moulding, scavenging with sterile gas while under high internal pressure, filling to the top of the mould with liquid, any excess being recycled to storage via a duct for supporting or blowing air, whereafter the container is sealed and severed by a second moulding device. The apparatus, Fig. 2, comprises an extruder 43 having a multi-nozzle head 12, two pairs 3, 3<SP>1</SP> of pivoted mould platens vertically reciprocable on guides 53 by cylinders 17 and a product-collecting bin 41. Multicavity mould halves 20, 21, 20<SP>1</SP>, 211, Fig. 3 are mounted on the platens 3, 3<SP>1</SP> which are pivoted at 22 by cylinders 25 through rack and pinion devices 23, 24 and may be locked by extensible rod 29 and latch 30. Minor vertical and horizontal adjustment of the mould halves within the platens may be effected by pins 31 and fluid system 32. In one position, one pair of platens 3, abuts nozzle block 12 and the containers are blow-moulded by high-pressure blowing air through inner pipe (15, Fig. 6, not shown) and purged with sterile gas. Filling liquid is fed through the outer pipe (42), any excess passing back through pipe (15) via a non-return valve to the reservoir. The mouth of the container is cooled during filling by means of flange (40) at the end of pipe (15) causing the filling liquid to impinge thereon. Platens 3 are then moved downwardly away from block 12, any liquid remaining in pipe (15) being blown out. As further tubing is extruded, platens 3<SP>1</SP> are open and move upwardly around closed platens 3 and close on the fresh extrudate, severing the previous extrudate. The filled and sealed containers within platens 3 are supported by low-pressure air during moulding and filling of those in platens 3<SP>1</SP> and are discharged into bin 41 on opening of the platens 3 prior to their upward movement as platens 3<SP>1</SP> descend.
Patent GB-1415608-A (GB)
Title: Improvements in and relating to telescopic hydraulic shock absorbers
Inventor: GEOFFREY GILBERT JANES
IPC: F16F9/44
Filed: 1973-12-21
Abstract: 1415608 Shock absorbers ARMSTRONG PATENTS CO Ltd 21 Dec 1973 59412/73 Heading F2S A telescopic hydraulic shock absorber of the type having a piston-rod 18 attached to a piston 16 with valve means 32 situated in a pressure cylinder 10 arranged coaxially within an outer cylinder 12, the annular space 14 serving as a reservoir and being connected to the pressure cylinder 10 by valves 22, 58 is characterized by an axial passage through the piston-rod 18 containing an axially displaceable adjuster rod 70 co-operating at its inner end 30 with the piston valve means 32 and operated by cam means 74. In the embodiment, the adjuster rod 70, by rotation of the cam member 74, allows external adjustment of the preload on two springs 34, 36 arranged in series against the valve member 32; the springs 34, 36 may have different spring rates. Also shown is a sleeve-valve 94 arranged in parallel with the spring-loaded valve 58 and which allows a choice of several throttle orifices 96 to be put in circuit by rotation of the valve body 104 by means of a screwdriver applied externally.