baber/WOPTO huggingface dataset:
Patent GB-1500833-A (GB)
Title: Tv deflection circuit arrangement
IPC: H04N3/233
Filed: 1975-12-04
Abstract: 1500833 Vertical deflection circuit INTERNATIONAL STANDARD ELECTRIC CORP 4 Dec 1975 [9 Dec 1974] 49817/75 Heading H3P A television receiver has a vertical deflection arrangement comprising means 2, 5 for generating a distorted sawtooth waveform the output of which is applied to the non-inverting input 11 of a deflection amplifier 9 which has an output 12 coupled to the series arrangement of deflection coils 15, a current sampling resistor 16 and a coupling capacitor 20 in that order. There is a negative feedback path between the junction of the coils and the resistor and the inverting input of the amplifier, and the means for generating a distorted sawtooth is operated with reference to the potential existing between the current sampling resistor and the coupling capacitor. An inductance (not shown) may be connected between the deflection coils, or between the current sampling resistor 16 and the coils, for N-S raster distortion correction. The coupling capacitor may be connected to ground via a series resistor 24 to provide a sawtooth without a D.C. component to other stages. A parabola shaped voltage is present at the junction between resistor 16 and the coupling capacitor and this is added to the distorted sawtooth produced 5 from a sawtooth generator 2 which receives synch. pulses at 1. Conventionally, parabolic feedback signals vary widely from circuit to circuit because of capacitor tolerances and these are compensated for by varying parameters in the distorted sawtooth producing circuit 5, the feedback going only to the deflection amplifier. By feeding back further and by making the feedback voltage depend on the value of the capacitor 20 the present circuit makes correction for tolerances unnecessary thereby simplifying the requirements of the distorted sawtooth generator. The coupling capacitor 6 may be placed at the input of the distorted sawtooth generator 5 (not shown) rather than at the output.
Patent GB-1523130-A (GB)
Title: Process and apparatus for heating elongate metallic elements by electric resistance heating
IPC: B23K11/25
Filed: 1975-12-04
Abstract: 1523130 Internal resistance heating MEYER ROTH & PASTOR MASCHINENFABRIK GmbH 4 Dec 1975 [4 Dec 1974] 49866/75 Heading H5H Conductive pins 6, 7 for forming into links of a chain are arranged in series between respective pairs of electrodes 2, 3 and 4, 5 controllably biased on to the ends of the pins and heated in two stages by passing electric current, one heated pin being replaced by a cold pin whilst the current is switched off and the cold pin then being given a first stage of heating whilst the second pin is given its final stage of heating, the electrodes thus not being removed until the respective pin is fully heated. Reservoirs 12, 13 containing pneumatic or hydraulic fluid at different pressures are connected to cylinders 8, 9 via changeover valves 14, 15. Higher pressure is applied to the cooler pin and the changeover takes place after a cold pin is inserted, so that low contact resistance between the electrodes and pins is achieved by a high pressure of contact without distorting the pin at higher temperature. Sensors 22, 23 cause automatic replacement of an element with attendent changeover of pressures when a pin reaches the required temperature. Changes in length of the pins are accommodated by strong and weak springs in each respective pair of electrodes, the weak spring being fully compressed when high pressure is applied to the pin and changes of length are accommodated by the strong spring. Conversely the strong spring is not compressed when the low pressure is applied and changes in length are accommodated by the weak spring.
Patent GB-1084448-A (GB)
Title: Improvements in or relating to 4h-benzo[4,5]cyclohepta[1,2-b]thiophen-4-one derivatives
Inventor: JUCKER ERNST
IPC: C07C65/30
Filed: 1964-12-11
Abstract: The invention comprises compounds of the formula <FORM:1084448/C2/1> where R represents chlorine or bromine or a C1- 4 alkoxy radical and Z represents the radical -CH2-CH2- or -CH=CH-.  The compounds are prepared by cyclization of a 2-[2-(2-thienyl)ethyl] benzoic acid of the Formula (II) <FORM:1084448/C2/2> by treatment with polyphosphoric acid, followed, if desired, by dehydrogenation in the 9,10-position by halogenating the 9,10-dihydro-compound and subsequently dehydrohalogenating the halo-compound.  Examples relate to the 6-chloro-, 6-bromo-, 6-methoxy- and 7-chloro-derivatives.  The benzoic acid derivative (II) is prepared by heating the appropriate o-phthalide with N-bromosuccinimide to give the 3-bromophthalide of the formula <FORM:1084448/C2/3> which is heated with water to give the phthalaldehydic acid of the formula <FORM:1084448/C2/4> which is then condensed with 2-thienyl-diethyl-phosphonate to yield the benzoic acid of the formula <FORM:1084448/C2/5> which is reduced to yield the benzoic acid of the Formula (II).
Patent GB-1129708-A (GB)
Title: Improvements in suction-box and drop-leg arrangements for paper-machines
IPC: D21F1/52
Filed: 1966-11-11
Abstract: 1,129,708. Suction apparatus for paper-making machines. VALMET OY. 11 Nov., 1966 [11 Nov., 1965], No, 50540/66. Heading D2A. A suction box 1 has a drop-leg 2 with an adjustable cross-section. The water passage through the drop leg 2 is defined by two fixed end walls 7 and two side walls 5 extending between the end walls 7. Each side wall 5 comprises a bent plate hinged at its upper edge to the suction box 1 with its lower edge extending into an overflow trough 3 and extends transversely of the fibre web on the wire of a Fourdrinier machine. A pipe (4) connects the suction box 1 to a vacuum source. The lower parts of the side walls 5 diverge, as shown, in normal operation but may lie parallel (Fig. 2) when the machine is started up.
Patent GB-1183302-A (GB)
Title: Plutonium Separation
IPC: G21C19/44
Filed: 1968-10-29
Abstract: 1,183,302. Processing spent nuclear fuel; plutonium compounds. UNITED STATES ATOMIC ENERGY COMMISSION. 29 Oct., 1968 [14 Dec., 1967]. No. 51122/68. Heading G6R. Plutonium is recovered from a sodium fluoride-plutonium tetrafluoride complex by contacting the complex with liquid hydrogen fluoride, which dissolves the NaF, and separating the undissolved PuF 4 ; the complex is formed by reaction between NaF and PuF 6 , for example during the processing of irradiated nuclear fuel elements; the fuel is fluorinated with BrF 5  to remove uranium and fission product fluorides, leaving PuF 4  which is treated with fluorine, the volatile PuF 6  being absorbed at 100-150‹ C. by a bed of NaF to form the complex. Further uranium and fission product fluorides are removed by passage of fluorine at 400‹ C. and the complex is then treated in succession with liquid HF and liquid BrF 5  to dissolve the NaF and residual Ru 106. Nb 95, and Sb 124 fission product fluorides.
Patent GB-1108847-A (GB)
Title: Austenitic stainless steel
IPC: C22C38/58
Filed: 1965-12-02
Abstract: A stainless steel has the following percentage composition: <TABS:1108847/C6-C7/1> Nb may be replaced by a molar equivalent amount of Ti, Zr, Hf, W, V or Mo, or by twice as much Ta.
Patent GB-1483585-A (GB)
Title: Process of the water-resistance of gypsum-based end products
IPC: C04B28/14
Filed: 1973-11-05
Abstract: 1483585 Water-proofed gypsum products UNIE VAN KUNSTMESTFABRIEKEN BV 5 Nov 1974 [5 Nov 1973] 51344/73 Heading C1A A gypsum is formed by setting (as defined) anhydrous or partly anhydrous calcium sulphate to form a paste, wherein before or during setting there is incorporated into the calcium sulphate material one or more compounds which in solution form ions of Sr, AlF, Ti, Mn, AlF 5 , HPO 4  or rare earth metal, and the paste is contacted with ammonia after setting and before or during drying to obtain an alkaline reaction thereof.
Patent GB-1170330-A (GB)
Title: Apparatus for Erecting Open Topped Trays from Blanks
Inventor: HUCKLE GODFREY
IPC: B31B3/46
Filed: 1967-11-13
Abstract: 1,170,330. Erecting trays. BOWATER PACKAGING Ltd. 26 March, 1968 [13 Nov., 1967], No. 51644/67. Heading B5D. [Also in Division B8] A tray made from a blank having a bottom A, Fig. 3, side panels B, extension flaps D, end panels C, ledge panels E, outer glue flaps F, apertures H and tongues G, is erected by a reciprocating male former 40 pressing it down into an aperture defined by walls 5, 7 so causing the extension flaps D to be folded upwardly and inwardly by convex folding edges 26 of extension flap folding surfaces 25 (see also Fig. 5). At the same time the end panels C and ledge panels E are folded upwardly by inclined upper surfaces 36 of triangular blocks 30 (see top left quadrant, Fig. 3). The side walls B are then folded to lie outside the extension flaps D by upwardly and outwardly extending portions 13 of erecting plates 12. Each triangular block 30, Fig. 4, is connected to a support plate 22, both by an arm 31, pivoted on a rod 32, and by a coil spring 33 fixed to an L-shaped bracket 34. As the former 40 descends the blank strikes apices 35 of the blocks 30, causing them to pivot outwardly so completing the upwardly folding of the panels C, E. The glue flaps F then engage the convex folding edges 26 which, with curved and twisted slide plates 27, cause the flaps to be folded inwardly (see bottom left quadrant, Fig. 3). Further descent of the former 40 aligns fold lines J on the blank with the block apices 35, the fold lines now corresponding with the top edges of blocks 47, secured on top of the former 40. The blocks 30, being spring-biased, effect continual engagement of the ledge panels E by their apices 35, causing them to be folded inwardly and downwardly until arrested by inclined surfaces 49 on guides 48. Members 50 secured on the former 40 locate and prevent the tongues G being bent. The former 40 now ascends, causing the inclined surfaces 49 to fold back the ledge panels E until the former breaks free. The blocks 30 then spring back and re-fold the ledge panels E to lie at about 40 degrees to the vertical, the edges of the glue flaps F being vertical and the flaps themselves about 30 degrees to the side walls B. Downward pressure of a second blank causes the ledge panels E to become horizontal whilst opposed pairs of tapered, inclined plates 24 effect the contact of the glue flaps F and the side panels B. The tongues G of the erected tray now engage the apertures H of the next higher tray to effect stacking. The extension flaps D may be glued.
Patent GB-1485949-A (GB)
Title: Magnetrons
IPC: H01J23/207
Filed: 1973-11-07
Abstract: 1485949 Magnetrons EMI-VARIAN Ltd 28 Oct 1974 [7 Nov 1973] 51646/73 Heading H1D The coaxial resonator of a coaxial magnetron is tuned-e.g. to dither the magnetron frequency -by a movable tuning element continuously unidirectionally displaceable for repetitive cooperation with a fixed tuning element. As shown, conductive segments 9 extending through 30 degrees of arc, and spaced circumferentially at 30 degree intervals, one mounted in a channel 10 formed in the coaxial cavity 4 by re-entrant dielectric walls, similar segments 11 being mounted for rotation on fingers 12 extending from the disc 13. Segments 9 and 11 may, alternatively, be of high dielectric constant material; the channel 10 may be filled with a fluorocarbon low loss liquid to reduce the likelihood of voltage breakdown; the movable tuning member may alternatively be within the evacuated portion of the resonator; and a conventional, annular, axially adjustable tuner may additionally be provided in resonator 4. In a further embodiment (Fig. 3, not shown), a sequence of sealed apertures (39) are formed in one end wall of the resonator 4, and a disc provided with a corresponding sequence of recesses (41) is rotated outside the end face.
Patent GB-1456237-A (GB)
Title: Fixing device
IPC: G03G15/20
Filed: 1973-11-07
Abstract: 1456237 Fixing electrostatic toner images OCE-VAN DER GRINTEN NV 7 Nov 1973 [8 Nov 1972 17 Sept 1973] 51743/73 Heading G2H [Also in Division F2]  Toner images on copy sheets 10 are fixed by passage through the nip of heated roller 60 and elastic-surfaced image-contacting roller 130, which has a non-uniform ribbed surface and deforms in the nip to present a uniform surface against the roller 60. Preferably the non-uniform surface of roller 130 is composed of an alternation of grooves and intervening lands, which deform to fill the grooves in the nip. Both rollers may have grooves, which co-operate with sheet-stripping blades downstream of the nip.
Patent GB-1340835-A (GB)
Title: Piezoelectric oscillator arrangements
IPC: H03H9/19
Filed: 1972-11-10
Abstract: 1340835 Piezoelectric flexural resonators SIEMENS AG 10 Nov 1972 [28 Dec 1971] 51909/72 Heading HIE A piezoelectric flexural bar oscillator of rectangular cross-section, made, e.g. of quartz, has electrodes disposed on the four longitudinal faces 1, 2, 3, 4 in the manner indicated by the diagrammatic Fig. 2. Mounting wires 8, 11 are attached at nodal points and lie in a common plane. The bar may be an XY oscillator, the adjacent faces 1, 4, each bearing a single electrode, being YX and YZ faces respectively. The electrodes are of chromiumplatinum-gold and cover the edges of the bar when first deposited. Subsequently, the edges are chamfered to separate electrodes on adjacent sides except at connections 7. The connections are formed by initially depositing electrode material in transverse grooves deeper than the extent of the chamfer.
Patent GB-1367688-A (GB)
Title: High power hydraulic control systems
Inventor: GRATZMULLER J L
IPC: H01H33/02
Filed: 1971-11-09
Abstract: 1367688 Hydraulic motor control circuit J L GRATZMULLER 9 Nov 1971 [23 Nov 1970] 51913/71 Heading F1P [Also in Division H1] A high pressure high flow hydraulic jack cylinder 6, the piston 42 of which in the position shown holds a single pole switch in its closed position, is connected with the housings of hydraulically operated valves 8, 12 and with a hydraulic accumulator 10 by means of large diameter bores in abutting blocks, whilst the actuating chambers of valves 8, 12 are connected together by a narrow diameter high pressure, low flow conduit 31 and by a similar conduit 30 and a solenoid valve 26 to the delivery of a high pressure pump P, which latter is also connected by a high pressure, low flow conduit 20 to the oil space 38 of accumulator 10. In operation, and with accumulator 10 charged at high pressure, and with conduits 30, 31 pressurized, a valve member 58 is held open by pilot pressure on a piston 56 whilst member 60 of valve 12 is held closed. On operating solenoid valve 26 to depressurize conduits 30, 31, valve members 58, 60 lift and the jack cylinder rapidly discharges past member 60 into a low pressure tank 14 connected by a duct 32 to a return reservoir.
Patent GB-1104660-A (GB)
Title: Method of controlling a mechanism
IPC: G01R31/28
Filed: 1965-12-08
Abstract: 1,104,660. Programmed testing. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec.8, 1965 [Dec.23, 1964], No. 51987/65. Heading G3N. A semi-conductor wafer 10 on a transparent support 11 is mounted on a carriage 26 for quadrature movement to positions occupied by individual chips of the wafer by servodriving arrangements 27, 28 under the control of a template following arrangement comprising a negative or positive photo-copy 18 of the wafer, touched up to facilitate a desired positioning procedure, which is scanned by a photo-cell 57 and light-source 55. When positioned at a chip a drive 34 brings test connectors 33 into engagement with the chip in order that a desired test sequence is carried out. At the end of a test sequence a signal on a line 36 causes the test connectors to be withdrawn. Positioning is effected by a logic circuit responsive to a signal on a line 58 indicating the presence of a chip and a signal on a line 59 indicating absence of a chip. The logic circuit comprises AND gates 62, 63, responsive to the photo-cell signals and position dependent signals from an OR-gate 60. Bi-stable trigger circuits 68-70 and interconnecting AND gates 71, 72 respond to a sequence of holes and chips to operate servodrive arrangements 27, 28 to shift rows, find the farthest chip in the next row, change direction and initiate testing at the first chip.
Patent GB-1425928-A (GB)
Title: Optical guides
IPC: B29C48/00
Filed: 1972-11-10
Abstract: 1425928 Light guides BICC Ltd 9 Nov 1973 [10 Nov 1972] 52099/72 Heading G2J An optical cable comprising a central support and a plurality of optical fibres or groups of fibres is constructed so that each fibre or group is readily identified at any transverse cross-section of the cable and so that strain in each fibre is reduced when the cable is stressed. The fibres are secured side-by-side on a flat flexible support, e.g. a tape of paper, plastics, metal or alloy, wound helically in at least one layer about the support which is of a material and of a cross-sectional area to reduce strain in the fibres when itself stressed, e.g. it may be a single copper-coated steel wire or may be a stranded element, and is preferably coated with a layer of rubber or cellular plastics material about which the support is wound. Two tapes may be used, with the fibres sandwiched between, see Fig. 3 (not shown) or a single plastics tape may be used with the fibres embedded in it, see Fig. 4 (not shown). Where two tapes are used, each carrying fibres, they may be wound in opposite hand. An outer sheath of plastics is provided, and a conductor, e.g. copper tape, may underlie the sheath, being separated from the fibres by a cellular plastics layer, see Fig. 1 (not shown).
Patent GB-1523830-A (GB)
Title: Amusement device including a piece moved along a path magnetically
IPC: A63F11/00
Filed: 1976-12-14
Abstract: 1523830 Magnetic game; toy vehicles TOMY KOGYO CO INC 14 Dec 1976 [23 June 1976] 52128/76 Headings A6H and A6S An amusement device comprises control means 17, 18 for moving a magnet (26) beneath a surface 12 to move a piece 16 along a path 14, and timing means 20 for terminating the operation of the control means. Knobs 17, 18 steer the magnet and hence the piece, a button 24 sets the time interval and a knob 20 winds a spring of the timing mechanism. Each knob 17, 18 rotates a gear 56 meshing with a gear 58 engaging teeth on a flexible strip 42, 52 movement of which carries along a respective rod 36 extending transversely of the surface and guided by pinions 38 on the ends of the rod engaging fixed racks 40. The two rods engage slots in the magnet. The button 24 moves a slide 80, Fig. 7, so that it engages a stop 78, or a stop 76, or neither, on a member 74 carried round with the knob 20, so determining how far the knob can be wound. The spring escapement mechanism produces a clicking noise. A start-stop button 22 can be moved to jam the escapement. When the knob 20 has reached its unwound position, a stop 126 carried round with it engages a slide 114 and moves it against a spring (118) to cause teeth (122, 124) to jam the knobs 17, 18 and prevent further movement thereof. Another stop (138) on the knob trips a bell.
Patent GB-1514570-A (GB)
Title: Door actuating mechanisms
IPC: E05F15/00
Filed: 1975-12-20
Abstract: The door-actuating device driven by a motor and having a two-armed actuating lever (7), one end of which is connected to the motor (2) and the other end (10) of which is connected to the door to be moved, is provided, at the door-connected end of the actuating lever, with connection members (13, 14) which allow an "elastic" coupling of the door. For this purpose, the actuating lever contains a guide track (12), in which a slide element (13) of the connection members is mounted so as to be longitudinally displaceable counter to the force of a spring (20). This element is connected to a link (14), via which the actuating lever is coupled to the door. The guide track is at such an angle relative to the operative direction of the driving force that, if the closing movement of the door is inhibited by an obstacle to movement in or near the closed position of the door, the slide element (13) moves in the guide track (12) counter to the force of the spring (20), the angle between the guide track and the slide element changing in such a way that the closing force determined by the spring force and acting on the door is reduced. <IMAGE>
Patent GB-1242677-A (GB)
Title: Improvements in or relating to agricultural balers
Inventor: RADFORD HERBERT EDWARD
IPC: A01F15/08
Filed: 1967-11-17
Abstract: 1,242,677. Baling machines. BAMFORDS Ltd. 13 Nov., 1968 [17 Nov., 1967], No. 52421/67. Heading B5F. [Also in Divisions B3 and D1] In an agricultural baler having a tying device operated by a complete revolution of a pinion 34 driven by a gear 19 having an interrupted set of like gear teeth 35, the first tooth 34a of the pinion which is engaged by the end tooth 35a of the interrupted gear 19 has a larger radius than the other teeth of the pinion so as to accommodate the greater wear thereof. The pinion 34 drives a rotatable bill hook 33. A knife 37 is carried by an arm 36. A continuous set of gear teeth (28), Fig. 2 (not shown), on the gear 19 drive a twine disc 32 through a bevel gear (27) and worm drive (29, 30).
Patent GB-526412-A (GB)
Abstract: 526,412. Directive wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and COCKERELL, C. S. Feb. 8, 1939, No. 4196. [Class 40 (v)] In " homing." and similar systems depending upon the use of so-called " interlocking " signals, it is found that the receiver, particularly if provided with automatic volume control, tends to discriminate between the dots and dashes so that when the craft is off-course on the " dot " region the signal appears to be stronger than when it is a similar distance " off -course " in the " dash " region. According to the invention this is offset by inserting a non-rectilinear impedance, such as a pair of rectifiers Z, having the polarity shown, in shunt between the output from the usual rectifier bridge R and the input transformer to the " left-right " indicator I. The arrangement is also applicable to a receiver cooperating with a non-directional transmitter and with a local reversing switch to give the effect of a reversed cardioid curve.
Patent GB-1057504-A (GB)
Title: Tobacco
Inventor: SCHUMACHERAND JOSEPH NICHOLAS
IPC: A24B15/40
Filed: 1965-12-13
Abstract: A tobacco product has added thereto an amount sufficient to alter the flavour or aroma of the tobacco product of a compound selected from the group of compounds having the formulae <FORM:1057504/A1-A3/1> <FORM:1057504/A1-A3/2> <FORM:1057504/A1-A3/3> wherein R1, R2, R4 and R5 are selected from the group consisting of hydrogen and alkyl groups and R3 is an alkyl group.  The alkyl groups may contain 1-6 carbon atoms.  The amount of compound added is between 0.00005 and 0.5%, and preferably between 0.0004 and 0.02%, by weight of the product.  Suitable compounds are selected from a , b -dimethyl-g -pentyliolenebutenolide, a , b -dimethyl-g -pentylbuterolide, a , b -dimethyl-g -pentyl-g -hydroxybutenolide, 3, 4-dimethyl-D a , b butenolide, 3, 4, 4-trimethyl-D a , b  butenolide, 3-isopropyl-D a , b  butenolide, g -ethyl-D a , b  butenolide, or 2, 3-dimethyl-D a , b butenolide.  Quantitative examples are given.
Patent GB-1517518-A (GB)
Title: Dough laminators
IPC: A21C3/02
Filed: 1974-12-07
Abstract: 1517518 Overturning and overlapping sheets SIMON-VICARS Ltd 18 Nov 1975 [7 Dec 1974] 53042/74 Heading B8R Individual sheets 11, e.g. of dough, are cut on a input conveyer 10 and transferred on to a second conveyer 13 comprising groups of rollers 14 held on endless, continuously driven chains 17. The groups are spaced, e.g. at 15 or 15<SP>1</SP>. In Fig. 1, the rollers 14 of a group are held rotationally stationary as they pass the output of conveyer 10 and a sheet is transferred thereto. When the group is over the transverse conveyer 18 however, the rollers 14 are rotated in reverse sense feeding the sheet through the space 15 and on to transverse conveyer 18, which may be continuously or intermittently moved at a rate which causes sheet overlap. In Fig. 4, the rollers 14<SP>1</SP> rotate continuously forwardly causing a sheet 11 to be fed through space 15<SP>1</SP> and be turned over as it is transferred on to conveyer 18.