baber/WOPTO huggingface dataset:
Patent GB-957748-A (GB)
Title: Proportioning and mixing device
IPC: B29B7/74
Filed: 1961-10-23
Abstract: 957,748. Mixing liquids. FARBENFABRIKEN BAYER A.G. Oct. 23, 1961 [Oct. 22, 1960], No. 37911/61. Heading B1C. In a proportioning and mixing apparatus for the production of plastics (especially polyurethane foams) a motor 9 drives metering pumps 8, 19 which supply the two main components to the mixing chamber 13 where they are mixed by counter-current injection. One of the components is obtained from the container 1, and the other is composed of two partial components from the containers 22, 23 which are pre-mixed by the stirring device 21; the supplementary metering pump 20 (which draws the partial component from container 23) and the stirring device 21 are also driven from the motor 9. The pumps 8, 19, 20 have relief valves 17a, 17b, 17c controlled through the means for switching off the pumps and matched so that irrespective of variation in the high delivery pressures for the respective components they decrease at the end of a mixing period in such a way that cessation of feed for all takes place at the same time.
Patent GB-1151347-A (GB)
Title: Apparatus for Converting Electrical Power into Pulse Current
Inventor: BENIN VLADIMIR LVOVICH
IPC: G01R21/127
Filed: 1966-08-24
Abstract: 1,151,347. Power measurement. KHARKOVSKY POLITEKHNICHESKY INSTITUT IM. LENINA. Aug.24, 1966, No.37935/66. Heading G1U. In a system for converting true power in a line 1 into pulse current whose average value depends on the power amplitude, a rectified and smoothed test voltage proportional to the voltage across the line 1 is derived at 7, 9 and subtracted from a full wave rectified but unsmoothed reference voltage at the input of a transistor 2. When the reference voltage is less than the test voltage, the transistor is switched on. The transistor collector circuit is energized by a rectified voltage proportional to the current in the line 1, derived at 4. Pulses appear in the transistor load 3, of amplitude-duration product proportional to the true power in the line, and the averaged value of these pulses represents the true power. The reference voltage is derived from a D.C. source 16, which is chopped by the line frequency, the chopped signal being amplified across transformer 19, and passed through a low pass filter 14 to a rectifier 15. The current and voltage signals applied to the transistor 2 may be interchanged Fig.2 (not shown) and by incorporating suitable symmetrical filters the arrangement may be used to determine forward power in 3 phase systems.
Patent GB-619823-A (GB)
Title: Improvements in or relating to indicating - scale arrangements
IPC: G01D13/06
Filed: 1946-12-30
Abstract: 619,823. Indicating-apparatus. MARCONI'S. WIRELESS TELEGRAPH CO., Ltd., and PEARCE, R. Dec. 30, 1946, No. 38055. [Class 106 (iv)] [Also in Group XL (c)] Means for indicating the movement of a, rotatable member comprise a drum and tape both bearing scale marks arranged so that the marks move together at the same linear speed and co-operate to give the required indication. A drum 1 has pins 2 for co-operation with a perforated tape 3 which winds from one to the other of two spools 4, 5 and is maintained in contact with the drum by two rollers 7 6, which are sprung separately or together by a spring 8. The numbers 0 to 9 are repeated round the drum to give the units digit, while the tape bears the digits of higher denomination, the two co-operating at the reading point, for example between two lines 9, to indicate the movement of the drum or member moving in correspondence therewith. In a modification the rollers 6, 7 are replaced by gear-wheels providing a drive between a gear-wheel fixed to the drum and gear-wheels fixed through coiled springs to the axes of the spools thus accommodating the gear chain to the varying diameters of the spools. The device may be used as a tuning scale for a variable condenser.
Patent GB-1071356-A (GB)
Title: A horticultural blanket
IPC: A01G13/02
Filed: 1964-09-18
Abstract: 1,071,356. Protecting plants. J. STONE. Nov. 1, 1965 [Sept. 18, 1964], No. 38142/64. Heading A1E. [Also in Division B5] A cover for protecting plants comprises two or more layers of transparent plastics film .sealed together continuously around the edges and discontinuously over their meeting surfaces so that the cover may be inflated. The cover is provided with tabs 14, 15 having eyelets 18 so that the cover can be -fastened to the ground by means of pegs or to hooks or clips on a greenhouse frame. The layers may be joined by high frequency welding along lines 20 to define parallel interconnected tubes 21.
Patent GB-369577-A (GB)
Title: An improved vehicle coupling and combined automatic braking means
IPC: B60T7/20
Filed: 1930-12-20
Abstract: 369,577. Vehicle brakes. WALKER, F. T., Woodlands, Norton Lees, Sheffield, and KING, W. T., 31, St. Peters Street, Stamford, Lincolnshire. Dec. 20, 1930, No. 38474, [Class 103 (i).] In a braking device for trailer vehicles in which the brakes are automatically applied when the trailer tends to overtake the tractor, the draw-bar of the trailer comprises a single shaft carrying a spring-controlled slidable member f connected by a universal coupling a, c to the tractor and having a pin-and-slot connection q, r with a lever pivoted at n to the draw-bar and adjustably connected at t to the cable-operated brakes, the lever comprising two connected members o, Fig. 3, between which the draw-bar is disposed. A detachable cover may be fitted to the coupling to encase the moving parts and lubricating-cups may also be fitted.
Patent GB-1525817-A (GB)
Title: Method and apparatus for forming a reserve winding of yarn of determined length on the spool of a textile-machine
IPC: B65H54/34
Filed: 1976-09-17
Abstract: 1525817 Forming reserve winding FRIED KRUPP GmbH 17 Sept 1976 [20 Sept 1975] 38625/76 Heading D1J When a spool is fully wound, yarn running to it is cut and sucked into a suction pipe, the full spool is replaced by an empty one, the pipe is moved to bring the yarn into engagement with a catching element rotating with the empty spool, the yarn is so guided that yarn withdrawn from the suction pipe by the catching element will be wound on one spool region to form a reserve winding and that yarn delivered to the spool will be wound in an adjacent spool region, and the yarn being withdrawn from the suction pipe is severed to form a reserve winding of preselected length. Yarn 1, Fig. 1a is traversed by grooved roller 4 onto spool 5. When the spool is wound, a wheeled unit 21 comprising fan 20, yarn bin 19, suction pipe 18, yarn severing device 26 and guide 22, is positioned on rail 15. The yarn is laid over guide 22, Fig. 2b, cut off by blade 23', and sucked through pipe 18 into bin 19, Fig. 2c. Pipe section 18" is then rotated so that the yarn is carried beyond rotating empty spool 5", Fig. 2d. Device 26 then severs the yarn in pipe 18 to provide a reserve yarn of given length. The yarn then engages Fig. 3, with hook 28 rotating with the spool. Delivered yarn 1' is then guided sideways by guide 29 to be traversed by roller 4 to form the main winding. Simultaneously the cut length of yarn is withdrawn from pipe 18, deflected sideways by conical surfaces on rotating plate 6, and wound as reserve yarn over the yarn loop extending around hook 28. To vary the length of yarn reserve, Fig. 3, severing device 26 is controlled by adjustable time delay 35' actuated when pipe 18 reaches the Fig. 2d position. Alternatively, device 26 may be mov able relative to pipe 18. In an open end spinner, Fig. 4, spun yarn 1 is fed by rollers 2 through square guide tube 38 to winding drum 4 and bobbin 5. When movable unit 40 is located, pipe 18 is connected to a closable opening in tube 38 which is under reduced pressure. Tube section 18" is rotatable to beyond empty bobbin 5', carries guide 22 as in Fig. 2a, and is connected to severing device 26.
Patent GB-816648-A (GB)
Title: Improvements in or relating to ª‡-chloro-glutaric acid derivatives
IPC: C07C55/12
Filed: 1957-12-12
Abstract: The invention comprises 4-carboalkoxy-2-chlorobutyric acids which are prepared by reacting chlorine with a monoalkyl ester of glutaric acid in the presence of a catalyst in the form of phosphorus or a phosphorus halide, oxyhalide, oxygen acid or oxide at a temperature not in excess of 140 DEG  C.  The use of stoichiometric amounts of reactants is preferred.  Specified catalysts are phosphorus, phosphorus tri-chloride or -bromide, phosphorus pentahalides, phosphorus oxy-bromide or -chloride, phosphoric and phosphorous acids, and phosphorus tri- and pent-oxide.  In examples, chlorine is passed into a heated mixture of monomethyl glutarate and phosphorus trichloride or red phosphorus, the 4-carbomethoxy-2-chlorobutyric acid being separated by distillation.  Monomethyl glutarate is prepared by refluxing together approximately equimolar amounts of methanol and glutaric anhydride.
Patent GB-1412907-A (GB)
Title: Copolymer latex and paper coating composition thereof
IPC: C08F220/12
Filed: 1973-08-16
Abstract: 1412907 Copolymer latices SUMITOMO NAUGATUCK CO Ltd 16 Aug 1973 38740/73 Heading C3P A latex of a copolymer of 25 to 45 per cent by weight of a substituted or unsubstituted conjugated diolefine, 3 to 40 per cent by weight of an alkyl ester of unsaturated carboxylic acid, 1 to 5 per cent by weight of a hydroxy-alkylcontaining unsaturated monomer, 0À5 to 4 per cent by weight of an unsaturated carboxylic acid monomer and 6 to 70À5 per cent by weight of an alkenyl aromatic monomer may be prepared by polymerizing the monomers in an aqueous emulsion polymerization system wherein an emulsifier is used in a ratio of 0À05 to 3À0 parts by weight on the basis of 100 parts by weight of the monomers and wherein at least 30 per cent by weight of the monomers is continuously or incrementally added after the initiation of the polymerization reaction and after the concentration of the total solids of the polymer becomes over 20 per cent by weight in the polymerization system, so that the concentration of the total solids is maintained above 20 per cent by weight and the rate of polymerization reaction is maintained above 50 per cent. A paper coating composition comprises a pigment and the copolymer latex. In the examples butadiene, styrene, methyl methacrylate, #- hydroxyethyl acrylate, fumaric acid and acrylic acid are copolymerized in the presence of water, lauryl sulphate, tert-dodecyl mercaptane, sodium bicarbonate and potassium persulphate. Coating compositions comprising the latexes, kaolin clay, calcium carbonate, zinc oxide, casein, satin white, oligomer dispersing agent (a sodium salt of polyacrylic acid) and modified starch are prepared.
Patent GB-1154695-A (GB)
Title: Rotary Drum Dryer, especially for Drying Beet Slices
Inventor: BAUNACK FRITZ
IPC: F26B11/02
Filed: 1966-09-01
Abstract: 1,154,695. Rotary drum driers. BœTTNER WERKE A.G. 1 Sept., 1966, No. 39119/66. Heading F4G. A rotary drum drier has a preheating portion formed by a member attached thereto and rotatable therewith and of greater diameter, with conveyer blades at its entry end and lifter blades at its drum end. A feed shoot projects laterally into the member on that side of the member which moves downwardly when the member rotates and cruciform elements are mounted in the path of the lifter blades to act as materialarresting elements.
Patent GB-356610-A (GB)
Title: Improvements relating to the manufacture of reinforced transparent sheets
IPC: B32B17/10
Filed: 1930-12-30
Abstract: 356,610. Transparent sheets. HAVER, E., 11, Gr³ner Weg, Oelde, Westphalia, Germany. Dec. 30, 1930, No. 39218. [Class 20 (iii).] Transparent sheets of wire fabric embedded in cellulose or the like are made from wire fabric which is flattened after weaving wholly or a,t the joints, or made from flattened wire.
Patent GB-1240640-A (GB)
Title: Improvements in or relating to devices for drying granular products
IPC: B29B9/00
Filed: 1970-08-17
Abstract: 1,240,640. Dryer for granules. BATTENFELD MASCHINENFABRIKEN G.m.b.H. 17 Aug., 1970 [10 March, 1970], No. 39550/70. Heading F4G. An apparatus for drying granules comprises a hopper 10 with inlet 11 and outlet 12 which has at its lower end an inverted T-piece 15, 16. Air from a compressor 20 is heated by heater 23 and passes in the direction A through the horizontal section 16 of the T-piece, carrying with it some granules G. These are conveyed up pipe 18 to an annular channel 19 whence they return to the hopper 10. An externally operable valve (32, 33, 34), Figs. 2, 3, 4 (not shown), allows the granules to be withdrawn from the dryer. Thermostats 26, 27, 28 control the temperatures at various stages of the process. An extension 30 of the hopper 10 protrudes partly into the horizontal section 16 of the T-piece so that clogging does not occur in the T-piece.
Patent GB-1063139-A (GB)
Title: Improvements in or relating to fluid control valves
IPC: G05D23/275
Filed: 1964-09-29
Abstract: 1,063,139. Valves. DOLE VALVE CO. Sept. 29, 1964 [Jan. 8, 1964], No. 39631/64. Heading F2V. A fluid flow control valve has three fluid openings normally in communication with one another, first and second spaced seats 47, 51, a ported valve member 26 guided for movement between the seats, and motor means, such as a temperature-responsive element 71, to actuate the valve member. In the preferred embodiment, the valve divides the flow through a heating convector and a by-pass line while maintaining a constant flow to outlet 13. The valve member 26 is urged by a spring 39 into engagement with a rod 77 actuated by 'the element 71 which is heated by a coil 80. After the member 26 has engaged the lower seat 47, a spring 78 is compressed to accommodate further expansion in the element 71 and a safety switch 83, 84 is opened. Spring-loaded seals 60 are provided for the valve stem.
Patent GB-1528098-A (GB)
Title: Spark-ignition internal combustion engine
IPC: F02P15/02
Filed: 1976-09-27
Abstract: 1528098 Spark-ignition IC engines NISSAN MOTOR CO Ltd 27 Sept 1976 [6 Oct 1975]  39984/76 Heading F1B In an engine having two spark-plugs 9 per cylinder and an inlet and exhaust valve overlap in the range from 10 to 45 degrees of crank angle the idling speed is in the range 400 to 650 rpm. The mixture is supplied by a carburetter 1 or by fuel injection into the air intake system, Fig. 3 (not shown), the idling speed being adjustable by setting the carburetter or the electronic injection. Exhaust gas is recirculated through a conduit 6 under the control of a valve 7.
Patent GB-899655-A (GB)
Title: Improvements in or relating to glass-to-metal seals
Inventor: HARROWELL RAYMOND VIVIAN
IPC: C03C27/02
Filed: 1958-12-12
Abstract: 899,655. Toughening glass: glass compositions. GENERAL ELECTRIC CO. Ltd. Dec. 9, 1959 [Dec. 12, 1958], No. 40161/58. Classes 56 and 61. [Also in Groups XXXVI, XL(a) and XL(b)] A glass for use in a waveguide window has the following approximate composition in parts by weight: SiOg 65 B 2 O 3  24 Al 2 O 3  2.2 K 2 O 4.2 Na 2 O 4.0 An eliptical disc of the glass is sealed into a metal sheet of Co.Ni.Fe alloy (see Group XXXVI), and after sealing has been effected the metal sheet surrounding the glass is indented to relieve stress in the glass or to obtain a desired stress pattern. If a further welding operation is to be performed the indenting may be such as to leave a moderate compressive stress in the window parallel to the minor axis and then, after welding, further indenting is performed to relieve the heavy tensile stress set up by welding, leaving a slight residual tension. Sealing and annealing treatment is described. A plier-like tool, for use in indenting the surface of the metal sheet, comprises pliers carrying a single or multiple indenting head with a stop to control the maximum depth of indentation. One jaw may have a flat surface and the other a pair of indenting spurs, e.g., of rectangular section 0.04 inch x 0.08 inch rounded at the top and “ inch apart; a stop may be set to produce indentations 0.01 inch deep.
Patent GB-1460704-A (GB)
Title: Preparation of nitronitrates
IPC: C07C203/04
Filed: 1975-10-02
Abstract: 1460704 Nitronitrates TEXACO DEVELOPMENT CORP 2 Oct 1975 [1 Nov 1974] 40277/75 Heading C2C Vicinal nitronitrates are made by reacting an alkene having at least 8 carbon atoms in a chain or a cycloalkene having at least 8 carbon atoms in a ring with dinitrogen tetroxide, oxygen and concentrated sulphuric acid. The reaction is effected at a temperature of -10 to 20 C. using a mole ratio of alkene or cycloalkene to sulphuric acid of between 1 : 1 and 5 : 1 and possibly in the presence of an inert organic solvent. The reaction mixture may also include vicinal hydroxynitro compounds.
Patent GB-1366735-A (GB)
Title: Methylaziridine compounds and process for the production thereof
IPC: H01J35/04
Filed: 1972-08-31
Abstract: 1366735 Printed circuits BUCKBEEMEARS CO 31 Aug 1972 [30 Dec 1971] 40370/72 Heading H1R [Also in Division H5] To provide a co-ordinate system for facilitating the determination of the position of internal details of a structure, e.g. a tooth, exhibited on an X-ray picture, a fine grid-consisting of a plurality of photofabricated, regularly spaced, X-ray opaque filaments encapsulated in a protective material-is positioned in front of the X-ray film during its exposure. The gridas described, of reticulated form-may be produced by developing the image of a master grid on a photosensitive resist covering a baseplate; electrodepositing an X-ray opaque metal; coating with plastics material; and thereafter peeling off the coated grid from the base-plate and completing the encapsulation with further plastics material.
Patent GB-967979-A (GB)
Title: Improvements in reciprocating conveyors
IPC: B65G25/10
Filed: 1962-10-25
Abstract: 967,979. Reciprocating conveyers; spiral shoots. F. JOS. LAMB CO. Oct. 25, 1962 [Oct. 30, 1961], No. 40418/62. Headings B8A and B8S. A reciprocating conveyer comprises a runway 1, consisting of spaced parallel guide rails 2 longitudinally between which carrier rails 3 extend, and a transfer rail 13 mounted for reciprocation along a supporting rail 7 by means of upper and lower flanged rollers 12, 10 which maintain the transfer rail 13 uniformly spaced from the runway 1. The transfer rail 13 is reciprocated by a piston-rod 16 connected to the transfer rail through a drive pin 17 and a bracket 18. A cylinder 15 attached to the supporting rail 7 by a mounting 14 drives the piston-rod 16 through a four-way pneumatic valve 24 secured to the supporting rail 7. The valve 24 has reversing buttons 29 operated by trips 30 attached to the transfer rail 13. Attached to the bracket 18 is a pivot pin 20 on which a brush 21 with resilient bristles 19 is mounted with a stop member 22 which prevents the brush 21 from turning in one direction when it extends vertically downwards, but permits it some turning movement in the other direction. Additional brushes 21a are mounted on additional brackets 18a. As the transfer rail 13 is moved by the piston-rod 16 in the direction in which workpieces AA are to be moved, the brushes 21, 21a are held in their working positions by the stops 22, 22a and when the pistonrod 16 is moved in the opposite direction each brush is free to turn about its pivot and travel back over workpieces which remain stationary on the runway. The various rails 2, 3, 7, 13 are resilient so that the path of the conveyer may be curved: the transfer rail 13k<SP>1</SP> (Fig. 25) being further guided by horizontally arranged rollers 42. The runway and transfer rail may be helically wound (Fig. 30) to provide an elevator with large storage space with no danger of undischarged workpieces being damaged as the resilience of the bristles of the brushes enables them to sweep over workpieces held on the runway. When the runway is inclined a stop may be provided to prevent workpieces running backwards (Fig. 34, not shown). More than one runway may be provided (Fig. 8, not shown) and workpieces may be moved in opposite directions along adjacent runways by a single transfer rail (Fig. 5, not shown). As shown in Fig. 37, cylindrical workpieces P may be fed along a runway 1p by a piece of notched rubber 21s.
Patent GB-1354103-A (GB)
Title: Data processing
IPC: G06K7/10
Filed: 1970-08-22
Abstract: 1354103 Registering location and movement of articles PLESSEY CO Ltd 20 Aug 1971 [22 Aug 1970 19 Dec 1970 22 Dec 1970] 40530/70 60426/70 and 60732/70 Heading G4H The system disclosed in Specification 1,257,163 is modified in that the read head for encoded labels is adapted in use to be held in the hand and comprises a plurality of photo-cells and light sources, the light being caused to impinge on the label and the modified reflected beam being transmitted back preferably both with the aid of light fibres. In one embodiment, Figs. 4, 5 (not shown) three detectors are placed at apices of an equilateral triangle, the width of the detectors being equal to the distance between each of them and equal to the width of a coloured (e.g. black) line on the label indicative of binary "0". Strobe marks are indicated as a white line three times the width of the detectors and binary "1" marks by black lines of the same width as the strobe marks. The output of the head as it is moved across the label in any orientation is taken to a logic circuit, Fig. 7 (not shown) responsive to the simultaneous sensing of a black line (binary 1) and to the sequential sensing of a black line followed by a simultaneous sensing of a white line (binary 0), the results are held in a shift register. In a further embodiment, Figs. 8, 9 (not shown) only two detectors are used which must be moved across the label with the adjoining line in a direction perpendicular to the coded stripes. Corresponding logic circuitry, Fig. 12 (not shown) is provided.
Patent GB-949205-A (GB)
Title: Improvements in or relating to conveyor installations
Inventor: ORWIN OLAF JOHN BARCLAY
IPC: B65G47/00
Filed: 1959-11-30
Abstract: 949,205. Conveyer systems. FISHER & LUDLOW Ltd. Feb. 27, 1961 [Nov. 30, 1959], No. 40655/59. Heading B7L. In a conveying installation in which load carriers 13 are propelled along a track 12 by dogs 15, 16 depending from an overhead chain 11 running on a track 10, there is provided at one or more locations on the installation a plurality of actuating elements 38 which on being moved laterally outward of the tracks 10, 12 by a carrier 13 pivots succeeding cam-shaped carrier drive disengaging elements 23 into the path of a roller 32 to lift the dogs 15 out of driving engagement with a driving bar 17 on the carrier 13 and at the same time to pivot a stop member 20 into the path of bar 17 to stop further forward movement of the carrier 13. The carrier drive disengaging element 23 and stop 20 are mounted on a vertical spindle 37 supported from the upper and lower tracks 10, 12 and biased by a spring 42 tending to move the element 23 and stop 20 outwardly of the track. The element 23 is moved to the operative position before the stop 20 and to the inoperative position after the stop 20. The stop 20, mounted between converging arms of a channel member 24, is held in its operative position or inoperative position by a spring 30. In its operative position pins 29 on the stop 20 engage in a right-angled notch 26, but should the stop 20 be engaged by an oncoming carrier 13 not drivingly disengaged from the chain 11, the stop 20 is moved outwardly against a spring 30 until the pins 29 engage in a recess 27 provided at the end of the member 24. Specifications 819,343, 875,082, 875,083, 949,202, 949,204, 949,206 and 949,207 are referred to.