baber/WOPTO huggingface dataset:
Patent GB-969488-A (GB)
Title: High frequency tube apparatus
IPC: H01J23/46
Filed: 1960-12-02
Abstract: 969,488. Velocity-modulated tubes; tuning cavity resonators; impedance matching. VARIAN ASSOCIATES. Dec. 2, 1960 [Dec. 16, 1959], No. 41606/60. Headings H1D and H1W. High frequency tube apparatus comprises a hollow substantially enclosed cavity resonator and a tuning member 26, Fig. 4, comprising a movable wall 22 which includes an inductive plate having a forwardly projecting portion 25 substantially central thereof and forwardly projecting flexible tuner diaphragms 23 connecting opposite sides of the plate to the cavity resonator, whereby when the movable wall is in its most forward position the forwardly projecting portion and the folds of the diaphragms substantially form a partition across the cavity resonator which opens up when the movable wall is moved rearward. The tuning member may also comprise a capacitive plate 27 curved substantially to follow the external shape of the drift tube as described and claimed in Specification 969,490, the arrangement being such that by rotation of control knob 35, the inductance and capacitance of the cavity resonator is altered in the same sense, thereby increasing the tuning range. The high frequency energy coupling means comprise an annular wave-permeable ceramic window 57, Fig. 2, coaxially arranged within the coaxial coupling means 53, 54 and is so dimensioned and disposed so as to transform the load impedance to an optimum impedance over a substantial bandwidth, as described and claimed in Specification 969,489. The electron gun comprises a cathode heating element 73, Fig. 5, of non-electrically insulated 0.015 inch diameter tungsten wire operating at 1700 C. held tightly against a refractory dielectric disc 74 of alumina ceramic by refractory dielectric rods 75 of sapphire, the emitter button 67 being in contact with the heating element and composed of barium aluminateimpregnated tungsten operating at 1000- 1100 C. Specification 927,471 also is referred to.
Patent GB-1465939-A (GB)
Title: Prefabricated sandwich-like plastics structural elements
IPC: E04C2/284
Filed: 1974-09-25
Abstract: 1465939 Laminated fire-proof panels; reinforcing edges O JONSSON and E MILASZEWSKI 25 Sept 1974 [28 Sept 1973] 41636/74 Headings B5N and B5K [Also in Division E1] A laminated fire-proof structural element for walls, floors and roofs comprises surface layers 3, 4 which will not crack on heating and a foam core 5 (suitable materials for which are specified) the core being bevelled to form a cavity 7 adjacent to a gas-permeable molten foamabsorbing insert 8, e.g. mineral wool, from which an outlet bore 9 extends through an edge reinforcement member 6. Heat-softening edge layers 15 prevent entry of air. The assembly of structural elements 2 with a supporting member 1 is achieved by inserting a bolt 12 through a bushing 10 and into a blind bore 14<SP>1</SP> in the lower element 2. The bolt 12 is hinged to facilitate the positioning of the upper element 2 via a through bore 14 (see Figs. 1-2, not shown). The bushing 10 is positioned by lugs 11 and maintained against horizontal forces by anchoring strips 13 (see also Fig. 4, not shown).
Patent GB-911779-A (GB)
Title: Tool for machining spherical surfaces
IPC: B23B5/40
Filed: 1959-12-08
Abstract: 911,779. Copy-milling; milling-cutters. MICROMATIC HONE CORPORATION. Dec. 8, 1959 [Dec. 17, 1958], No. 41639/59. Class 83 (3). A rotary cutting tool comprises a pair of cutting edges lying tangential to a sphere generated about a centre lying on the tool axis. Two tools 13, 14, Fig. 1, may machine the inner and outer surfaces of a workpiece 10 as it is rotated slowly through one revolution. The tool may be fed downwardly to the position shown in Fig. 4 while the workpiece 38 is stationary or rotating. The edges are formed on doubleconical tips 29, 31, Fig. 6, and are set back to give a negative rake angle. The tips are clamped on to a hard insert 23, Fig. 5, by a screw 27 acting through a clamp 25 and a chip-breaker 26.
Patent GB-1519522-A (GB)
Title: Heating apparatus
IPC: F24D3/18
Filed: 1975-10-10
Abstract: 1519522 Central heating systems ROBERT BOSCH GmbH 10 Oct 1975 [30 Oct 1974 20 Feb 1975] 41642/75 Heading F4U A heating system comprises a heat pump 10 having an evaporator 11 for withdrawing heat from the environment, e.g. from ambient air or from spring or river water supplied by a pump 14, and a condenser 12 for transferring heat to liquid in a pipeline 17 connected to a three-way valve 19 whereby the heated liquid may be passed to a calorifier 23 and/or to a radiator system 31 and then returned to the condenser. A thermostat 44 in the calorifier is connected to a switch 42 controlling the heat pump compressor motor and the multiway valve 19. As shown, the compressor motor is also controlled by a control unit 36 connected to sensors 37, 38 for detecting the ambient temperature and the temperature in the radiator system, respectively. The control unit 36 also controls the operation of an auxiliary heater 29. The control arrangement is such that the multiway valve 19 provides priority switching to the calorifier in that when the thermostat 44 demands heat, the control unit 36 is overridden and the valve 19 is adjusted so that only water in the calorifier is heated. In a second embodiment, Fig. 2 (not shown), the multiway valve 19 is located at the downstream side of the calorifier and the radiator system 31, adjacent to the inlet of the pump 33.
Patent GB-1437130-A (GB)
Title: Apparatus forcontrolling a distance of travel of a depositor  for artificial stones
IPC: G05B19/12
Filed: 1973-09-06
Abstract: 1437130 Stacking bricks &c FRIED KRUPP GmbH 6 Sept 1973 [7 Sept 1972] 41978/73 Heading B8C [Also in Division G3] Artificial stones 5 are picked up from a station 4 by grippers 3 and transported by a carriage 2 which deposits the stones in a predetermined arrangement on a movable support 6 for subsequent heat treatment. The distance of travel of the carriage 2 is controlled in accordance with a preset programme set by a camming device 7 and electrical pulses produced by a generator 8 during carriage movement. When the carriage has moved to within a predetermined distance of its stopping point, its speed is reduced to a low value to ensure accurate positioning at the desired location.
Patent GB-1005764-A (GB)
Title: Profile turning machine
IPC: C07F9/32
Filed: 1963-11-24
Abstract: 1,005,764. Lathes. B. SCHONDORFF. Nov. 24, 1961 [Nov. 24, 1960], No. 42182/61. Heading B3T. An underfloor lathe for turning the wheel. peripheries of rail-vehicles in situ comprises rolls 4, 5 for supporting and driving the wheels 1, a tracer 17 for engaging the axle 2 or its box 3 and transmitting eccentric movements of the axle by means of a feeler 22 to means 9, 10 for controlling the height of the rolls 4, 5 so that any rise or fall of the axle-centre relative to the lathe-tool is compensated by a corresponding fall or rise respectively, of the rolls. A frame 6 adjustable vertically in guides 8 by hydraulic jacks 9, 10 carries a pair of rolls 4, 5 at each end. In vertical guides in the frame 6 there is a compound slide-rest 12 which is supported from a pedestal 15 by an hydraulic jack 13, 14 so that vertical movements of the frame 6 do not affect the tool. The tracer 17 is mounted in a spherical bearing 20 and is connected by a sheathed cable 21 to a feeler-valve 22 for controlling the supply from a pump 23 to the jacks 9, 10. The slide rest 12 may be controlled electrically by a feeler, and instead of hydraulic control of the frame, this may be controlled electrically. In a modification, Fig. 3, the rolls 24, 25 are carried by slides 26, 27 movable in inclined guides 28, 29 by hydraulic cylinders 30, 31. The slides are interconnected by a bar 33 which influences the feeler 32.
Patent GB-1072329-A (GB)
Title: Improvements in digital voltmeters
Inventor: METCALF ERIC
IPC: H03M1/00
Filed: 1964-10-16
Abstract: 1,072,329. Selective signalling. SOLARTRON ELECTRONIC GROUP Ltd. Oct. 5, 1965 [Oct. 16, 1964], No. 42392/64. Heading G4H. A voltage digitizer of the type in which the number of charge quanta that have to be applied to an integrating amplifier to balance the input voltage are counted is characterized in that both a fast acting and a slow acting feedback are provided. In Fig. 1, fast and slow feedback loops extend from the quantum generator QC over a resistor R4 and a resistor R6, respectively, and they function simultaneously. In a modification, Fig. 3, the fast and slow feedbacks function successively; for a first part of the measuring cycle large quanta at a slow frequency are applied over resistor R4 and for the remainder of the cycle small quanta at a high frequency are used.
Patent GB-1469574-A (GB)
Title: Signal convolving apparatus
IPC: H03H9/25
Filed: 1974-09-30
Abstract: 1469574 Surface wave convolving device SPERRY RAND CORP 23 Sept 1974 [23 Oct 1973] 42408/74 Heading H3V A signal convolving device comprises input transducers 1, 2 at opposite ends of a piezoelectric substrate 4 which feed surface waves at respective frequencies w 1 , w 2  towards a semiconductive zone 3 having interdigitated elements 25, 26 which are used to impose bias electric fields E on zone 3, in order to reduce the attenuation of the device, and which are also used to obtain an output signal via a D.C. blocking capacitor 35 at a frequency w 3  which is the sum of w 1  and w 2 . The curve of gain or attenuation against electric field E (Fig. 3, not shown) is such that the bias field, which is supplied via an inductor 33 by a direct or pulsed voltage source 36, causes a net gain. The resistivity of the semi-conductive material is controlled by doping or, if it is photo-conductive, by the amount of light falling on it. The substrate 4 may be lithium niobate with a semi-conductive layer of CdSe or CdS, and the semi-conductive layer may be spaced from the piezoelectric substrate. Alternatively the substrate may be of a material, such as CdS or GaAs, which has both piezoelectric and semi-conductive properties. In an example w 1 =123 MHz, w 2 =132 MHz and the sum frequency w 3 =255 MHz.
Patent GB-1432597-A (GB)
Title: Cooling device for hydraulic torque converters
IPC: F16H41/30
Filed: 1973-09-10
Abstract: 1432597 Hydrodynamic torque converter KABUSHIKI GAISHA DAIKIN SEISAKUSHO 10 Sept 1973 [11 Sept 1972] 42412/73 Heading F2W A hydrodynamic torque converter is cooled by a unitary fin structure 43 comprising fins 44 bent from a part toroidal metal sheet which is welded to the outer surface of the torque converter impeller element 11. As shown, radial fins 44 are integral with ribs 45 connected at their inner and outer ends to annular rings 46, 47. One of the rings 46 or 47 may be omitted. The fins 44 may be spiral to increase air flow. Each rib is spot welded at 48 to the impeller shell and the rings 46, 47 are spot welded to the shell at circumferentially spaced points.
Patent GB-1102938-A (GB)
Title: Dither type trace reader
Inventor: MOUNTAIN PETER DONALD
IPC: G06K11/04
Filed: 1965-10-06
Abstract: 1,102,938. Photo-electric edge followers. FORD MOTOR CO. Ltd. Oct. 6, 1965, No. 42502/65. Heading G1A. The electrical analogue of a graphical trace is obtained by scanning one edge of the trace 4 with a beam of light 6b reflected from a mirror galvanometer 3 to which an oscillating signal is applied, receiving light reflected or transmitted on a photocell 9 to produce a correcting signal having a mark/space ratio which varies according to the position of the edge of the trace with respect to the mean position of oscillation of the beam of light and integrating the correcting signal and  superimposing the integrated correcting signal  upon the oscillating signal applied to the mirror galvanometer. The output of cell 9 is applied to an amplifier 11 including a Schmitt trigger which produces a square wave signal with the required mark/space ratio. The output of amplifier 11 is integrated by an integrator 12 the output of which is fed to the galvanometer 3 to make it follow the trace and also at 14 to an analogue computer which is to use as input the function defined by the trace. If the light beam loses the trace, the galvanometer will return to a predetermined position where it may be arranged to automatically stop the motor driving the trace or initiate a search for the trace. The trace may be on a closed loop, and there may be several traces on the same paper in different colours any one of which could be read by using a corresponding filter.
Patent GB-1086476-A (GB)
Title: Improvements in adjustable lath or louvre assemblies
Inventor: LEE LUCILLE
IPC: E06B7/084
Filed: 1965-10-07
Abstract: 1,086,476. Louvre windows. SOUTH EAST METAL INDUSTRIES Ltd. Oct. 7, 1965. No. 42688/65. Heading E1J. [Also in Division F4] In an adjustable lath or louvre assembly clips 2 are mounted spacedly, to overlap each other when closed, on a jamb 1 to which the clips 2 are pivoted and having projections 3 extending obliquely across the jamb 1 to align with the clips 2 when closed, a first portion 5 of a clip undersurface overlying a projection 3, to one side of which a second portion 6 is disposed on closure.
Patent GB-1416506-A (GB)
Title: Device for interconnecting the ends of webs of material
IPC: B65H19/18
Filed: 1973-09-11
Abstract: 1416506 Web splicing CHAMBON Ltd 11 Sept 1973 [13 Sept 1972] 42688/73 Heading B8R A web splicing device in a web unwinding machine comprising a stand 1, Fig. 1, supporting rotatably a support 3 carrying at its end a pair of mandrels 5, 6 for replacement and expiring web rolls A, B includes a rotary knife blade cylinder 13, driven by a motor 14 and connectable selectively by a kinematic connection drive to the replaceable web roll, and brake means 29, 30 Fig. 2, to brake the mandrel of the expiring web roll during unwinding thereof. In operation the unwound web roll A has its mandrel 5 subjected to a braking torque to maintain the tension in the web 7. Braking torque is applied to the mandrel by a brake 29 acting on a chain sprocket 25 connected with the mandrel by chain drive 31, 33. During rewinding of the expiring web roll A the replacement web roll B is prepared for splicing by disposing the adhesive tape 8 on the leading edge of the web of roll A against a mark and rotating the knife blade cylinder 13 so that its knife blade 10 is aligned with a further mark. When the splicing operation is required a clutch 28 is actuated and the motor started to rotate the knife blade cylinder 13 and web roll A in synchronism with each other to bring them up to the peripheral speed of the web 7 under control of pick-ups, one of which 35 is shown, whereupon a cylinder 17 is actuated so that its piston 18 trips a pair of arms 15 mounted on the support 3. Tripping of the arms 15 disposes the stationary blade 11 in the rotary path of the blade 10 and the expiring web 7 is severed. The severed trailing end is attached to the tape 8 by a roller 19 tripped in timed relationship by a further piston 23. A further tape 42 carried by a suction roller 36 is attached to the opposite face of the spliced webs by a further applicator roller 38 tripped by a cylinder 40 and cooperating with a presser roller 41. The motor 4 is then stopped, the clutch 28 disengaged, the brake 30 applied to sprocket 26 to brake the mandrel 6 of the web roll B and the latter is brought into the position occupied by the web roll A by rotation of the support 3 clockwise using a motor drive 51. The guide rollers 20, 9, are then replaced by the diametrally disposed guide rollers 20a, 9a.
Patent GB-990245-A (GB)
Title: Improvements in or relating to antenna systems
IPC: H01Q13/04
Filed: 1961-11-29
Abstract: 990,245. Radio aerials. WESTERN ELECTRIC CO. Inc. Nov. 29, 1961 [Dec. 6, 1960], No. 42785/61. Heading H4A. A biconical transmitting aerial 18 (Fig. 1) and a biconical receiving aerial 20 for a repeater satellite 12 each comprise a conical-shaped parallel plate waveguide (Fig. 3) having a portion 28, 30 of a width less than one half of the operating wavelength separated from a wider waveguide 25, 27 by a mesh of conductors 34 arranged at 45 degrees, as shown, the conductors 34 circularly polarizing the wave. To ensure complete and continuous circular polarization, the inner faces of the biconical openings may be lined with dielectric material or annular corrugations or slots 36 may be provided as shown. To prevent cross-coupling between the transmitting and receiving aerials the circular feeder waveguide 26 of one of them is supplied with right hand circularly polarized waves which emanate from the flared mouth with a spiral wave front, the other circular feeder receiving left-hand circularly polarized waves of similar spiral wave front but 180 degrees out of phase. In addition, slots 40, 42 parallel to the biconical openings may assist in minimizing cross-coupling. The flared mouth may be covered by insulating material of which the satellite shim is made. Minimizing of crosscoupling between the aerials may be enhanced by coupling both aerials to their associated transmitter or receiver for waves with a spiral wave front of the proper sense.
Patent GB-1180070-A (GB)
Title: Process for Thermal Hydrodealkylation of an Alkyl Benzene.
IPC: C07C4/16
Filed: 1967-09-21
Abstract: 1,180,070. Thermal hydrodealkylation. GULF RESEARCH & DEVELOPMENT CO. 21 Sept., 1967 [27 Sept., 1966], No. 43004/67. Heading C5E. Alkylbenzene feeds contaminated with at least one C 6-12  paraffin (e.g. 4-12 wt. per cent) are thermally hydrodealkylated in two zones at a temperature of 538-816‹ C., the feed to the second zone being the effluent from the first, and the effluent from the second zone being separated under high pressure into a liquid phase, from which the product is recovered, and a gas phase, at least part of which is recycled to the feed to the first zone in an amount sufficient to give a hydrogen to aromatic ratio in said feed of 4-20 and to give a total reactor feed comprising 35-70 wt. per cent of recycle gas. The effluent from the first zone may be quenched with a portion of recycle gas before passing to the second zone, and the effluent from the second zone may be used to generate steam before passing to the separator. The invention obviates the necessity to purify the feed.
Patent GB-898179-A (GB)
Title: Improved process for treating zinc to improve corrosion resistance
Inventor: FRANCIS HOWARD T
IPC: C23C22/73
Filed: 1960-12-14
Abstract: The corrosion resistance of a zinc surface is improved by contacting it with a solution containing zinc ions and chromate ions in a ratio of zinc to chromate of 9:1 to 1:9,5.  The temperature of the surface should be above the boiling point of the solvent for the solution and below the melting point of zinc so as to volatilise the volatile components of the solution immediately after the solution contacts the surface.  Bodies made of zinc or zinc alloy or bodies coated with zinc or zinc alloy, e.g. galvanised articles, may be treated.  The solution may be applied by spraying or by a roll, and may contain zinc chloride or zinc nitrate together with chromic acid, suitable solvents being water, alcohol and alcohol/water mixtures. Exemplified solutions also contain nitrates of magnesium, aluminium, cobalt and nickel.
Patent GB-1155446-A (GB)
Title: Combined Ploughing and Tilling Apparatus
Inventor: PALM GUNNAR HILMER
IPC: A01B17/00
Filed: 1967-09-22
Abstract: 1,155,446. Agricultural implements. G. H. PALM. 22 Sept., 1967 [7 Dec., 1966], No. 43242/67. Heading A1B. A combined ploughing and tilling apparatus comprises a plough chassis 1, a tilling device including a supporting structure 12 carrying a rotary tiller 23 and being pivoted to the plough chassis 1 for lifting and lowering movement, the supporting structure also being arranged to abut against the plough chassis by means of a roller 7, spring means 9 being provided to urge the structure into its lowered position. A shaft 20 carrying the tilling device is mounted in bearings on rods 19 which are vertically adjustable in sleeves 17 mounted in the ends of a rod 11.
Patent GB-1065675-A (GB)
Title: Method and apparatus for maintaining a combustion wave in continuous circulation round a closed circuit
Inventor: THOMAS JOHN LIONEL
IPC: H02K44/08
Filed: 1964-10-23
Abstract: 1,065,675. Radiant tube heaters. BRITISH PETROLEUM CO. Ltd. Dec. 2, 1965 [Oct. 23, 1964], No. 43279/64. Heading F4B. [Also in Division F1] A combustion apparatus comprises two tubular sections 10a, 10b connected together to form a circuit. The sections 10a, 10b respectively have inlets 14a, 14b for gaseous fuel and oxidant and exhausts 15a, 15b for combustion products. The arrival of a flame front at the end 12a of section 10a on its way to exhaust 15a causes ignition of the combustible gas at 11b, continuously supplied from inlet 14b. The flame front thus travels along section 10b and in passing to exhaust 15b ignites the gas at 11a, continuously supplied from inlet 14a. The cycle thus repeats itself. A spark gap 21 effects combustion at starting of the cycle. Each inlet 14a, 14b comprises, Fig. 3 (not shown), a fuel nozzle (17) surrounded by an annular space (19) supplied with oxidant by a pipe (20). The fuel and oxidant mix in a chamber (22), the effective length of which can be adjusted by moving the nozzle (17). In a modification, Fig. 2 (not shown), nine tubular sections (10a to 10i) are connected to form a circuit operating in the manner described. The fuel may be hydrogen, town gas, butane or carbon monoxide and the oxidant air with or without additional oxygen. Nitrogen may be added to slow the reaction. The apparatus may be used for M.H.D. power generation or in chemical reactions.
Patent GB-1129287-A (GB)
Title: An exhaust system conduit for an internal combustion engine
IPC: F01N13/18
Filed: 1965-10-12
Abstract: 1,129,287. Plastic pipes. WALKER MFG. CO. 12 Oct., 1965 [12 Oct., 1964], No. 43313/65. Heading F2P. [Also in Divisions B5 and F1] An I.C. engine exhaust pipe, e.g. downstream of the silencer, is formed of synthetic plastics material, e.g. an epoxy, phenolic or silicone resin including a curing agent such as amine, an anhydride or polyamide, which is flexible in a first stage of curing, when it is installed in a motor vehicle and clamped in the desired shape, and which becomes rigid in a second stage of curing which is effected after installation. The second stage may be initiated by heat, e.g. the flow of exhaust gases through the pipe, or by the external application of a chemical-curing agent. Suitable filler materials may be incorporated in the plastic material, e.g. asbestos, sand or fibreglass for strengthening, antimony trioxide to protect the pipe from the exhaust gas heat, or fillers which either heat insulate the pipe or conduct the exhaust gas heat through the pipe. The pipe wall thickness may decrease in a downstream direction. The pipe may be formed of three concentric layers, the inner one including heat insulating fibres, and the middle layer serving to bind the inner layer to the outer one, the latter either including heat conducting fibres or being elastomeric to cushion road shocks. Alternatively, the inner layer may have heat conducting metal filings embedded therein. The exterior of the pipe may be formed with heat conducting, spaced, peripheral fins. The curing to the second stage may be such that either the radially inner or outer portions of the pipe wall are left in a semi-flexible state to reduce exhaust noise.