baber/WOPTO huggingface dataset:
Patent GB-1324879-A (GB)
Title: Method and apparatus for regulating the output of a set of fuel cells
IPC: H01M8/04
Filed: 1970-10-16
Abstract: 1324879 Fuel cell battery P PATIN 16 Oct 1970 [16 Oct 1969] 49222/70 Heading H1B [Also in Division H2] In a method of controlling the output of a set of fuel cells the electrolyte of which contains constant amounts of a reactant, the cells are electrically connected in series and are progressively and sequentially connected hydraulically in parallel to the electrolyte circuit as the loss of head of electrolyte flowing through a preceding cell attains a preset value. Fig. 3 shows cells Pa-Pm which are used to supply a current I to a vehicle traction motor and to which electrolyte is supplied by a pump 9 driven by a motor 10. A main outlet duct 11 from the pump 9 is connected directly to the inlet of the first cell Pa and to the inlets of the cells Pb-Pm via pipes 12b-12m containing orifices 13b-13m, respectively, to produce a minimum flow through each cell. The minimum electrolyte flow is arranged to produce zero voltage in the cells Pb-Pm but internal resistances which are negligible or of a desired value. The inlet of each of the cells Pb-Pm is additionally connected to that of the preceding cell via a valve 14b-14m, respectively, each of which comprises a membrane 16, Fig. 4, which is normally held against the end of inlet pipe 21 by a spring 17 to shut off the flow. As the pump motor 10 speeds up, the pressure in inlet pipe 21 rises until the spring pressure is overcome and electrolyte is permitted to flow to the corresponding cell via inlet 20 and to the valve 14 of the next cell via a pipe 21. The motor 10 is connected in series with a rheostatic vehicle controller (23, Fig. 5, not shown) and is supplied from an auxiliary battery (24) in series with a dynamo (25) driven at a speed proportional to that of the vehicle. The arrangement produces a constant current I to the vehicle motor. The Specification mentions applications to control a number of other variables, using appropriate transducers instead of the dynamo (25).
Patent GB-1486574-A (GB)
Title: Musical instrument
IPC: G10H1/38
Filed: 1974-10-23
Abstract: 1486574 Musical instruments D DEIS 14 Nov 1974 49303/74 Heading G5J In a musical instrument a keyboard or other. sound producing means is laid out with pairs of keys or other sound producing means separated by a semitone aligned end on to give two rows staggered as shown, adjacent keys or sound producing means in any row being separated by a major or minor third. A three headed hammer (not shown) may be used when the sound producing means are in the form of mounted metal plates to produce various triads.
Patent GB-1143508-A (GB)
Title: Encoder
IPC: H03M1/00
Filed: 1967-10-31
Abstract: 1,143,508. Shaft encoders. DIXI S.A. 31 Oct.,1967 [9 Nov., 1966], No. 49305/67. Heading G4H. A shaft encoder has a number of tracks, one for each digit, each comprising a resistor, the value of which depends on the magnetic field intensity and a magnetic path which varies as the shaft rotates. In the form of Fig. 1, the housing 1 comprises a shell containing a permanent magnet 2 forming a flux gap between rim 3 and flange 4. A ring of non-ferrous metal, e.g. brass, in the flux gap has slots for the resistors 9 and polepieces 10. The shaft 7 is fixed to a rotor 6 carrying toothed polepieces 8 forming tracks. The resistors 9 are connected as potential dividers each with a fixed resistor and the output signal is taken from the junction. The polepieces 10 may taper towards the code teeth. In another form, Fig. 3, a separate magnetic circuit is provided for each track, a permanent magnet 12 having two polepieces 13, 14, between which is placed, at one end, the resistor 9 and, at the other, the toothed disc 17 of the encoder. As the teeth pass into and out of the flux gap the magnetic field on the resistor varies. Alternatively, the gaps may be arranged in series.
Patent GB-1162286-A (GB)
Title: Buildings with Rotatable Floors
Inventor: BAUER EDWIN L
IPC: E04B1/346
Filed: 1967-10-31
Abstract: 1,162,286. Revolving restaurants. W. K. H. MAU. 31 Oct., 1967, No. 49355/67. Heading E1A. A stationary, multi-storey building having a fixed roof 52, panoramic window arrangement 70 and fixed column 42 is provided with a revolving restaurant in the form of a floor 86 which has a plurality of levels 88, 90, 92, 94. The floor is provided with rollers 158, 186 running on tracks such as 192, lateral guide means such as 132, peripheral seals and conventional drive means including an electric motor operating through gear reduction mechanism for details of which and minor architectural modifications the Specn. and remaining drawings, (not shown), should be referred to.
Patent GB-1473928-A (GB)
Title: Slide filing plate
IPC: G03B21/64
Filed: 1974-11-15
Abstract: 1473928 Slide holders SLIDEX CORP 15 Nov 1974 [28 Nov 1973] 49438/74 Heading G2J A slide holding plate 1 has slide receiving pockets each having a support surface 2 for supporting the periphery of a slide 6 and a transparent membrane 4 forming a projection window, the membrane being spaced from the slide 6 so that any dirt or marking on the membrane is out of focus when the slide is projected. Figs. 3 and 5 (not shown) show alternative forms of membrane.
Patent GB-1110809-A (GB)
Title: Modulated beam recording and reproducing apparatus
Inventor: PEARS DAVID ASHLEY
IPC: H04N5/94
Filed: 1965-11-22
Abstract: 1,110,809. Recording and playback. MINNESOTA MINING & MANUFACTURING CO. 22 Nov., 1965, No. 49545/65. Heading G5R. Apparatus for recording or playback using a scanning beam of energy includes means for deflecting the beam transversely with respect to the record track in order to reduce the effect of drop-outs. As described, the record tape carries a layer of secondary electron-emission material, covered by a masking layer which is selectively removed by electron bombardment during recording. The recording beam is deflected rapidly to and fro so as to broaden the record track. Playback utilizes secondary electron emission in response to scanning by an electron beam, which is deflected sideways for a predetermined distance and time if the signal played back is suddenly reduced. The tape carries a synchronizing signal which controls both the speed of the tape and adjustment of the scanning beam along the track as described in Specification 1,110,810.
Patent GB-1170529-A (GB)
Title: Improved Apparatus for Counting a Succession of Pulses
IPC: G04F10/04
Filed: 1967-11-01
Abstract: 1,170,529. Electric selective signalling; counting-apparatus; parking meters. TRAVAUX INDUSTRIELS POUR L'ELECTRICITES TRINDEL. 1 Nov., 1967 [4 Nov., 1966], No. 49571/67. Headings G4D, G4H and G4T. In a device for counting a number of pulses, a marker and a reader for recording on and reading from a material support comprise respective multi-decade counters, supplied in parallel by a pulse generator, so that marking members of the marker are successively armed by circular switching and the weights of decades of detectors in the reader are switched circularly, the detector of the reader, in each decade, which corresponds to the corresponding-decade marking member which is armed at the same instant exhibiting a zero weight. Pulses from generator G, representing changes in temperature or displacement or simply the passage of time, are counted at a marking station M in a decimal counter having three decimal orders each comprising a rotary stepping switch 1 (only one order shown). The pulses also drive a decimal counter at a reading station L, this counter having ten stepping switches in each of three decimal orders, the switches in a given order being driven in synchronism and having their wipers lagging by one position relative to the wipers of the respective preceding switches in the order (only five switches b 0 -b 4  of one order shown). When a card S 1  is inserted in the marking station M, it closes contact 3 and the count is punched into it as shown (or printed or magnetized on to it). At the end of an interval of time (which is to be measured or the change of temperature or displacement during which is required), the card is inserted in the reading station L and the count marked on it is sensed by feelers v 0 -v 9  &c. to energize one out of ten lines for each decimal order. The ten lines for an order go in common to the ten rotary switches of the order, producing an output from the wiper of one of them which via an indication relay R 0 , R 1  . . . prints or displays the decimal digit of the order. To avoid incorrect indications, minus-one corrections are made in the higher decimal orders of the counter at L, partly under control of comparisons of the inputs (from the feelers) and outputs (from the indication relays) of preceding decimal orders, by changing over contacts preceding the indication relays of the orders being corrected. The time that a vehicle has been parked may be measured as above, the indication relays at L feeding a diode matrix (in part via changeover contacts for tariff selection), optionally followed by an adding machine, to obtain the amount to be paid which is printed out.
Patent GB-1135682-A (GB)
Title: Process for preparing bipyridylium compounds
Inventor: DOWNES JOHN EDWARD
IPC: C07D213/22
Filed: 1966-11-07
Abstract: 1,135,682. Bipyradylium compounds. IMPERIAL CHEMICAL INDUSTRIES Ltd. 6 Oct., 1967 [7 Nov., 1966 (2)], Nos. 49800/66 and 49801/66. Heading C2C. N-alkyl diquaternary salts of 4,4<SP>1</SP>-bipyridyls are prepared by heating a 4,4<SP>1</SP>-bipyridyl for at least 3 minutes with an aliphatic carboxylic acid containing 2-5 carbon atoms substituted in the alpha position with a radical capable of conversion into a stable negative ion. The reaction may be carried out in the presence or absence of an inert diluent.
Patent GB-1150704-A (GB)
Title: Method and Apparatus for Spreading Chopped Fibers
IPC: D04H1/72
Filed: 1966-11-08
Abstract: 1,150,704. Cutting glass fibre rovings. JOHNS-MANVILLE CORP. 8 Nov., 1966 [30 Dec., 1965], No. 49953/66. Heading C1M. [Also in Division D1] A method of forming a non-woven fibrous layer from glass fibre roving comprises cutting the rovings into relatively short lengths, dropping the cut lengths on to a support for the layer and reciprocating a plurality of relatively thin, taut, resilient elongated members transversely of their lengths across the path of the falling roving. Apparatus for carrying out the method preferably includes a pair of feed rollers 30 and 32, and a cutting roller 34 with radiating extending knives running the length of the roller 34 and engaging against a rubber covered roller 36. The resilient members 50 are preferably stretched elastic bands of, for example, neoprene. The members 50 are held in a framework 38 which is preferably reciprocated by eccentric drive means.
Patent GB-1093417-A (GB)
Title: Improvements in or relating to cutting tools
IPC: B23B27/16
Filed: 1964-12-09
Abstract: 1,093,417. Cutting tools. VALERON CORPORATION. Dec. 9, 1964 [Feb. 26, 1964], No. 50002/64. Headings B3B, B3C and B3K. A cutting tool having a removable cutting insert comprises a holder body 14 with a seat 15 through which projects a pin 13. An insert 10 is located over the pin by way of a central hole 11 and a wedging element 17 located in a recess in the body at the rear of the insert is adapted to force the insert into co-operation with the pin and hence lock the insert in the seating. The wedging element is provided with a cylindrical protrusion 18 which cooperates with a corresponding portion 21 of the recess and is provided with a locking screw 19 such that the tightening of the screw produces a reaction, between the protrusion on the wedge and its co-operating portion of the recess, which is directed through the pin from the insert thus producing a clamping action between the pin and insert to secure the insert in the recess.
Patent GB-1449360-A (GB)
Title: Liquid cooled dummy load for rf transmission lines
IPC: H01P1/26
Filed: 1974-11-19
Abstract: 1449360 Liquid cooled waveguide loads BIRD ELECTRONIC CORP 19 Nov 1974 [19 Nov 1973] 50103/74 Heading H1W A liquid-cooled dissipative load for a co-axial transmission comprises co-axial annular passages for passing liquid over the surface of a resistive inner conductor in one direction, and then in the reverse direction. As shown, coaxial terminals 23, 31 are respectively connected to a three-part housing 30, 31, 32 and to an inner conductor in the form of a dielectric tube 35 with an external resistive coating. The tube 35 is supported at one end by a conductive socket 44 attached to the inner terminal 21, and, at the other end, by a cap 38 through which it is earthed. The inner terminal assembly is located by a dielectric annulus 37 and electrical energy is propagated between the outer, exponentially tapered member 30 and the inner (dissipative) member 35. The latter is surrounded by co-axial dielectric tubes 33, 34 defining inner and outer annular liquid-flow passages 56, 57. These respectively communicate, through radial passages, with an inlet chamber 53 and an outlet chamber 60, and they are inter-connected by radial passages 58. Thus, liquid flows from the earthed end of the load, over the resistive member 35 and back to the earthed end. Circulation is maintained by a pump 16 in series with a heat-exchanger 15. A restricted flow of coolant is maintained in a narrow annular passage 63 between the internal surface of tube 35 and the exterior of a dielectric rod 36. The passage 63 is provided, for this purpose, with bleed ports 62, 66.
Patent GB-1212184-A (GB)
Title: Airborne navigation/communication equipment
Inventor: DRAKE MICHAEL JOHN
IPC: H03J1/14
Filed: 1966-11-09
Abstract: 1,212,184. Electric component assemblies. G.R. DESIGNS Ltd. 9 Nov., 1967 [9 Nov., 1966], No. 50308/66. Heading H1R. [Also in Division H3] An airborne navigation or communications receiver having oscillator mixer tuning elements selected by a rotary knob on the chassis has a component circuit assembly mounted in a separate sub-chassis, within the main chassis and replaceable as an independent unit, e.g. as shown in Fig. 2. Electrical interconnections between sub-chassis circuit is preferably by plug and socket arrangements (not shown) or by soldering. As shown in Fig. 4, coaxial shafts S4, S5, S6 coupled to frequency selector switches in unit 3 carry cogs C4, C5, C6 which when unit 3 is inserted mesh with cogs C1, C2, C3 on coaxial shafts S1, S2, S3 operated by knobs and journalled in the front plate 2 of the main chassis. The cogs C4, C5, C6 also mesh with indicator disc cogs C7, C8, C9. The shafts in unit 3 and the indicator disc shafts are arranged to rotate stepwise to discrete angular positions their movements from these positions being impeded by a detent. The indicator unit is the subject of Specification 1,212,183, Class G3Q.
Patent GB-1516459-A (GB)
Title: Electrolyte for electrochemical machining of nickel base superalloys
IPC: B23H3/08
Filed: 1976-12-02
Abstract: 1516459 Electro-machining electrolyte UNITED TECHNOLOGIES CORP 2 Dec 1976 [5 Dec 1975] 50327/76 Heading C7B Electro-machining of Ni-base superalloys is effected at 15-20V in an aqueous electrolyte containing 2À6-79 ml/l HNO 3  (sg 1À4 # 42‹Be), 10-40 ml/l HcL (36 wt. per cent) and 59-358 g/l citric acid. The hydrogen ion normality may be maintained at 2À0-2À2 or the Cl ion concentration at the equivalent of 10-16 ml/l of HCl.
Patent GB-1170276-A (GB)
Title: Apparatus for Separating a Moulded Product from a Moving Mould.
IPC: B28B13/06
Filed: 1966-11-14
Abstract: 1,170,276. Slip casting; product separation. KONINKLIJKE SPHINX-CERAMIQUE V.h. PETRUS REGOUT, N.V. 14 Nov., 1966 [17 Nov., 1965], No. 50952/66. Heading B5A. Ceramic articles are removed from porous slip-casting moulds, by means of a guide and follower mechanism, the product-carrying mould part being pivoted about an axis extending in the direction of movement, the follower-receiving guide extending in this direction and mounted to be stationary in this direction but movable in a part-circular path transversely to this direction, the guide being moved along this path to rotate said mould part when its follower is in the guide from a first angular position in which the product remains in the mould part to a second angular position in which the product is permitted or caused to separate from the mould part, the length of the guide and the speeds of the guide and mould being such that the follower remains in the guide during angular movement thereof. In the Figs, the moulds 20, 21 are carried by a truck 4 on endless track 1. Each truck, Fig. 2, comprises a frame 11 having a portion 14 pivoted at 15 and carrying the lower mould part 20, a portion 12 pivoted at 13 and carrying the upper mould part 21, the whole upper part of the frame carrying said portions 12, 14 being pivoted at 18. As shown in Fig. 2, the mould is held open by roller 16 following guide 22 during movement through the heated tunnel 2, the mould being closed during section 23 of the track and filled during section 24, the truck then passing into non-heated tunnel 3. Thereafter, surplus slip may be drained from aperture (28, Fig. 4, not shown) by tilting about pivot 18 due to roller 19 following guide 26. After drying, the product may be removed to a truck (10) on another endless track 9. As in Figs. 6-9 (not shown) truck (10) runs down an incline to engage with truck 4 at 15 after upper mould part 21 is raised (Fig. 6) and part (30) of truck (10) is pivoted at 15 on to the upper part of product (29, Fig. 7) and both part (30) and portion 14 carrying product 29 are turned on to truck (10, Fig. 8). Portion 14 is then returned to truck 4, truck (10) disengaged from 15 by movement up an incline and divergence of tracks 1, 9. Portion 12 is then moved to half-open position, 12<SP>1</SP>, for passage through tunnel 2. The product may be finally dried in tunnel 8.
Patent GB-1335562-A (GB)
Title: Angle-of-attack computers
IPC: F41G7/30
Filed: 1970-10-28
Abstract: 1335562 Analogue and digital computers SPERRY RAND CORP 28 Oct 1970 [3 Nov 1969] 51216/70 Headings G4G and G4A  An apparatus for evaluating the angle of attack of an aircraft comprises a section shown in Fig. la for deriving the angle of attack αi in the aircraft's inertial frame of reference by combining data from accelerometers 59, 58, 56 responsive to acceleration in respective orthogonal directions, a side slip detector 60 and an air data computer 52<SP>1</SP> which provides the airspeed and altitude rate of the aircraft. The angle αi so derived is fed to a second section shown in Fig. lb which uses αi to derive a value of the aircraft mass from data relating to the forces acting along the vertical axis of the aircraft and the acceleration caused thereby. The angle αi and the mass are combined in accordance with equations derived in the Specification to produce as an output an angle a which is the angle of attack of the aircraft with respect to the frame of reference of the surrounding air. Fig. 2 (not shown), shows an alternative arrangement to that of Fig. 1a, wherein the accelerometers are replaced by a gyroscopic device responsive to the pitch and roll angles of the aircraft. The computing circuits may be either analogue or digital.
Patent GB-1324209-A (GB)
Title: Process for hydrocrackind and or isomerizing paraffin hydrocarbons
IPC: B01J23/42
Filed: 1971-11-05
Abstract: 1324209 Hydrocracking; isomerization TEXACO DEVELOPMENT CORP 5 Nov 1971 [7 Dec 1970] 51516/71 Heading C5E Paraffin hydrocarbons are hydrocracked and/ or isomerized by contacting with hydrogen at 200-400‹ F. in the presence of a catalyst consisting essentially of platinum, alumina and 3- 15 wt. per cent chlorine and in the presence of carbon monoxide introduced at a time average rate of 1 x 10<SP>-7</SP> to 5 x 10<SP>-4</SP> gram mole per hour per gram of catalyst. The carbon monoxide can be introduced either continuously or intermittently and moderates the activity of the catalyst to enable greater selectivity to be obtained. The feed contains 7 to 27 carbon atoms. The process can be used to (a) isomerize nheptane to iso-heptane, (b) isomerize n-octane to predominantly iso-octane, (c) hydrocrack isooctane to predominantly iso-butane, (d) hydrocrack n-octane to predominantly iso-butane and small amounts of propane, n-butane and iso-pentane and (e) hydrocrack C 11 _ 18  paraffins to normal and iso C 5 -C 6  gasoline blending components.
Patent GB-516554-A (GB)
Abstract: 516,554. Calculating-apparatus; synthetic resin articles. OLYMPIA BUROMASCHINENWERKE AKT.-GES. July 2, 1938, No. 19688. Convention date, July 13, 1937. [Class 106, (i)] [Also in Group IV] -  A numeral wheel or drum for registering or calculating mechanism is formed by an inner surface a, Fig. 3, of artificial resin with the distinguishing marks b in relief and with a ribprojection d, Fig. 6, which serves to ensure that the marks are correctly placed, and by an outer covering e of plastic composition, such as polystyrol formed by moulding, pressing, spraying or other process and of a different colour, in such manner that only the surfaces of the marks remain visible or become visible after a turning or like operation, as shown in Fig. 5. The sections of the composition that are wholly or partly -enclosed, by reason of the shape of the distinguishing marks, are secured by means of perforations c provided in the bodies of the marks.
Patent GB-1035380-A (GB)
Title: Improvements in or relating to short-wave tuning systems
IPC: H03H5/00
Filed: 1964-12-21
Abstract: 1,035,380. Inductors; cavity resonators. PATELHOLD PATENTVERWERTUNGS & ELEKTRO HOLDING A.G. Dec. 21, 1964 [Dec. 23, 1963], No. 51791/64. Headings HIT and H1W. [Also in Divisions H3 and H4] A short wave amplifier tunable through a wide frequency range comprises a coil S disposed concentrically in a cylindrical screening housing B and a helically movable contact ring R having contacts K1, K2 running on the coil turns and on the housing respectively. The coil is connected to a valve with an outer anode case A, disposed concentrically so as to be surrounded by the top turns of the coil, the end of which is connected to the anode case. When the contact ring is in top position the annular space above it is sealed off from the space below and forms a cavity resonator in conjunction with the internal capacity Cag of the valve, and when the ring is set to a lower position the inductance of part of coil S is in series with the cavity resonator. As shown, the coil S is bifilar wound and it may comprise tubing through which cooling fluid is passed, the lower end being earthed to the casing B. The valve is in grounded grid connection and the tuning range may be increased by means of variable capacitors C2 connected between the anode case A and the housing B. In a modification (Fig. 2, not shown) the housing is made conical at the upper end so as to reduce the minimum enclosure and increase the maximum frequency. In another (Fig. 3, not shown) the contact ring R comprises inner and outer rings, connected together by sliding contacts, so that the outer ring and contacts K2 need only have a sliding movement.
Patent GB-1097210-A (GB)
Title: Mobile display
IPC: A47F5/10
Filed: 1965-12-08
Abstract: 1,097,210. Display stands. F. R. BONNET and R. G. PALAMINI. Dec. 8, 1965 [Dec. 9, 1964], No. 52062/65. Heading A4H. A wheeled display stand comprises a carriage frame 1-3 pivotally supporting a pair of spaced parallelogram linkages 7-10 interconnected by cross-bars 11-16 for movement between a display condition, as shown, in which the inclination of the linkage is determined by selectively adjusting the length of telescopic legs 17, 18 carried by the linkage, and a folded or transport condition (Fig. 1, not shown) in which opposed rods 7, 8 of the linkage are locked in a vertical position. The cross-bars 11-16 support shelves, trays or containers 20-22. In the folded condition of the stand, the front leg 18 is engaged in a sleeve 6 carried by the base frame of the carriage 1-3.