baber/WOPTO huggingface dataset:
Patent GB-1230190-A (GB)
IPC: H04L27/06
Filed: 1968-09-26
Abstract: 1,230,190. Automatic phase control. INTERNATIONAL BUSINESS MACHINES CORP. 26 Sept., 1968 [6 Oct., 1967], No. 45667/68. Heading H3A. A receiver for carrier modulated signals including two different pilot frequencies comprises control means to adjust the phase of the demodulating carrier if the relative phase delay between the two pilot signals exceeds a predetermined magnitude. After demodulation, the phase relationship of the two pilots signals is compared in an early/late gate circuit which controls the input pulses fed to a divider chain providing the demodulator clock signal. In one embodiment, Fig. 4, the higher frequency pilot, 1800 Hz, is applied to two trigger circuits SS1, SS2 to define three time zones, SS1, SS2, #SS1 + #SS2. If a rising edge of the other pilot, 600Hz, occurs during SS2, no action is taken, and the demodulator clock signal F 0  is provided from a 16F 0  source via gate A4 and divider Cl, C2, C3. If the rising edge of the 600Hz pilot occurs during SS1, it triggers T1 to inhibit gate A4 and thus omit a triggering pulse. If the rising edge of the 600Hz pilot occurs during #SS1 + #SS2 TII is triggered to open gate A2, feeding an extra pulse into the divider. In an alternative early/late gate, Fig. 6 (not shown), the divider (T1, T2, T3) is fed with one or other of two phase displaced trains of pulses depending on the relative phasing of the two pilots.
Patent GB-1233081-A (GB)
IPC: G07F17/32
Filed: 1968-06-28
Abstract: 1,233,081. Chance apparatus. J. W. PROCTOR. 30 June, 1969 [28 June, 1968], No. 31109/68. Heading A6H.  In an electrically operated machine of the fruit machine type, i.e. one in which a row of adjacent symbols are displayed after a game, means are provided permitting a selected symbol or symbols to be held during a number of consecutive games. The machine may include indicating means showing the periods during a series of games when the symbol may be held. The holding means may comprise circuitry, including relays, designed to override the usual machine circuitry which prevents the holding of symbols for more than one game. A relay may also be provided as a reset for the holding relay for use when a player wins a game. In one embodiment, the holding system of a conventional fruit-machine comprises circuitry adapted to energise a coil and associated stop 5 (Fig. 1) which coacts with a notched disc 3 fixedly and coaxially mounted upon a drive shaft 1 bearing a reel R having the symbols S marked thereon. In known machines this stop 5 may be held on for one game only after which a mechanism releases the stop permitting the reel to rotate, however, the circuitry of this embodiment (Figs. 2 and 3 not shown) is designed to override this "anti-hold" mechanism and allow the reel to be held over a series of games. A display box (Fig. 4) 109 may be provided having a plurality of transparent panels 110 each capable of being illuminated and each representing one (or more than one) game in a series of games. These panels are lit successively as games are played and indicate whether a player may hold a symbol during that game.
Patent GB-1234333-A (GB)
IPC: B41F13/68
Filed: 1969-03-24
Abstract: 1,234,333. Severing by tearing. H. G. FALTON, and C. A. SUTTON. 24 March, 1969, No. 15381/69. Heading B4B. [Also in Division B8] Bursting apparatus comprises means (e.g. roller 44) to feed a transversely weakened web 36 at a predetermined speed, pulling means (e.g. belts 48 co-operating with rollers 50) operable at a greater speed than the web feeding means to tension the web, and stationary rupturing means (e.g. blade 52) to initiate rupturing of the web along a transverse line of weakening such that a portion may be severed from the web and delivered (e.g. along shoot 14). Web 36 may comprise a series of inserts joined along lines of weakening (e.g. perforations) and intended for insertion in printed publications issuing from a printing machine. The web is guided between opposing wiping members 176 over roller 42, past a gum applying station 182 and over a roller 44 bearing projections which engage in marginal perforations. The web is periodically gripped between arcuate faces 132 of bursting rollers 50 and projections on driven endless belts 48 which operate at a speed greater than that of roller 44 causing tensioning of the web over a blade 52 and severing of the foremost insert therefrom. The delivery shoot 14 is pivotable to a number of alternative positions, Figs. 2 and 3 such that the glued and severed insert may be pushed by projections 114 on belts 48 into the nip between a web 16 issuing from a printing machine and an associated guiding roller, 30 or 34. The apparatus may be positioned adjacent a longitudinal folding station at the delivery end of a press (Fig. 1, not shown).
Patent GB-1250130-A (GB)
IPC: F23D14/26
Filed: 1970-07-14
Abstract: 1,250,130. Gas burners. GEO. BRAY & CO. Ltd. 14 July, 1970, No. 34048/70. Addition to 1,148,943. Heading F4T. In a flamestrip for use in a non-aerated natural gas burner, a single sheet of flame resistant material such as steel is formed to provide two longitudinal relief chambers 4 on either side of a longitudinal main flameport portion 2 which has main flameports 3 in two rows, one on each side of the medial plane, each relief chamber being formed with restrictor inlet ports 6 and auxiliary outlet flame ports 5, the dimensions of these ports being such that stable flames are formed at the auxiliary outlet flame ports 5 to prevent flame-lift at the main flameports 3. The main flameports 3, auxiliary flameports 5 and the restrictor inlet ports 6 have diameters in the edges 0À25-0À35 mm., 0À45- 0À55 mm. and 0À25-0À35 mm. respectively. The flamestrip may be further deformed to provide means for attachment to a flameport module or gas manifold. In another embodiment (Figs. 3 and 4, not shown) the main flameport portion (8) is flat and substantially flush with the adjacent surfaces of the relief chambers (4<SP>1</SP>), the main flameports (9) being in a single row in the medial plane.
Patent GB-1250737-A (GB)
IPC: B60T8/42
Filed: 1970-02-19
Abstract: 1,250,737. Antiskid brake systems. GENERAL MOTORS CORP. 19 Feb., 1970 [13 March, 1969], No. 7934/70. Heading F2C. In a method of controlling a brake pressure modulator 100 in an antiskid system the velocity of a braked wheel is sensed by a tachogenerator to produce a first signal on a line 28 simulating wheel deceleration during braking and a timedelayed second signal simulating vehicle deceleration, the two signals being compared to sense incipient wheel lock-up and produce an output signal which controls the modulator. The frequency signal from the tachogenerator 12 is fed to a frequency-to-voltage converter 18 and differentiated to produce an acceleration signal. Spurious signals due to wheel hop following brake application are overcome by providing a bias signal by means of a pulser 74 and an acceleration switch 78 causes brake application whenever wheel acceleration exceeds a predetermined value. The modulator 100 has an hydraulic portion 102 including a piston 126 moving in a bore 124 under the influence of a pneumatic chamber 104 divided by a diaphragm 106 having a rigid backing 108 and connected to a vacuum source 118 via a conduit 116 and to a valve 86 via a conduit 114, the valve being operated by a solenoid 84 energized by the control circuit so that sensing of an incipient wheel lock condition causes the piston 126 to be moved to allow a check valve 146 to close and isolate the, brakes from the master cylinder and to increase the volume within the bore 124 to reduce the braking pressure.
Patent GB-1250889-A (GB)
IPC: H02M1/08
Filed: 1968-07-30
Abstract: 1,250,889. Switching systems for consuming apparatus; control of A.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 18 July, 1969 [30 July, 1968], No. 36411/68. Headings H2H and H2J. [Also in Division G3] A control circuit comprises a bi-directional thyristor device with an internal or external triggering diode (that is, a "Quadrac" " or a "Triac" " with a "Diac") and a transistor arranged to control triggering signals to the device in response to a D.C. signal. As shown, the device is a Quadrac Q in series with a load and an A.C. supply, the triggering angle being determined by the rate of charging of a capacitor C which is regulated by the transistor VT connected across the D.C. terminals of a rectifier bridge B. In Fig. 2 (not shown) the load is an unspecified A.C. motor and the D.C. control signal is derived from the difference between a D.C. tachogenerator voltage and a reference. In Fig. 3 (not shown) the load is a split phase capacitor motor, the device being in series with the main winding only, and the control signal is the amplified difference between a D.C. reference voltage and the rectified and smoothed output of an A.C. tachogenerator. In this case the capacitor 22 and bridge 24 are connected to a potential divider across the Quadrac and the capacitor is shunted by a diode/resistor network connected across the Quadrac to prevent "hysteresis in the control action due to incomplete discharge of the capacitor. A temperature control system is mentioned, the D.C. control signal being derived from an unspecified temperature sensitive device.
Patent GB-1250955-A (GB)
IPC: A01D34/49
Filed: 1969-02-15
Abstract: 1,250,955. Grass box. WEBB LAWNMOWERS Ltd. 10 Feb., 1970 [15 Feb., 1969], No. 8318/69. Heading A1F. A grass box for a lawn mower which has a closable outlet for grass discharge comprises a upper hood portion 11 and lower part or floor 12 pivotally connected at 14 to position 11 and having a wall forming the floor of the box and upwardly directed flange like walls 13 which lie flush with and inside the walls of portion 11. The box is carried on a support means 15 containing elevating means which can be moved vertically by handle 41 acting through bell cranks 35, 32, 23 pivoting about pins 36, 22 which are supported by brackets on the mower frame. On elevation of the support means 15 lower part 12 swings upwards and tilts forwardly on levers 24 and 17, and lost motion lever 27 moves until the end of the slot 28 furthest from pin 26 abuts pin 29. Further elevation of the support means causes upper part 11 to swing clockwise as viewed in Fig. 1 about pin 14 so progressively opening the grass outlet opening. The fully elevated attitude of the grass box is such that all the grass is discharged. The support means, in alternative embodiments, may be power operated by electric motor or i.c. engine.
Patent GB-1251559-A (GB)
IPC: G11B5/706
Filed: 1969-02-27
Abstract: 1,251,559. Cobalt ferrites. SONY CORP. 27 Feb., 1969 [27 Feb., 1968], No. 10537/69. Heading H1H. A magnetic powder has the formula wherein M is Zn, Mg, Cd, Ca or a combination of 2 or 3 of these metals except the combination Zn.Ca. When M is Zn or Mg 0À3<x<1, 0À15<y<0À3; when M is Cd or Ca 0<x<1, 0À02<y<0À15; when M is Zn.Mg, Zn.Mg.Cd or Zn.Mg.Ca 0À3<x<1, 0À05<y<0À3 and when M is Zn.Cd, Mg.Cd, Mg.Ca, Cd.Ca, Zn.Cd.Ca or Mg.Cd.Ca 0<x<1, 0À02<y<0À15. In Examples, ferrites are made from precipitated hydroxides and oxalates. These ferrites, provide magnetic video tapes having improved storage temperature characteristics.
Patent GB-1258838-A (GB)
IPC: B29C48/91
Filed: 1969-11-11
Abstract: 1,258,838. Oriented films; extruding films. PLASTIC PRODUCTS Ltd. 11 Nov., 1969 [12 Nov., 1968], No. 55160/69. Headings B5A and B5B. [Also in Division A4] The surface of an extruded longitudinally oriented thermoplastics strapping tape 3 is deformed to minimize slippage e.g. when used with plastics or metal fastening clips, by embossing between opposed concave and convex surfaces of nip rolls 13, through which it makes a further pass, via idler roll 14. The tape is initially oriented by stretching and quenching in a water bath 4 on being drawn from the extrusion die 2 by nip rolls 6, through which it also makes an additional pass, via idler roll 7, and is further oriented by the faster speed of the rolls 13 than of the rolls 6 and which rolls 13 draw the tape between electrical resistance heaters 8, through a water quenching bath 12, and between water removing air jets 12a. The oriented and roughened tape 16 is heat annealed by being drawn between further electrical resistance heaters 17, through a water quenching bath 21, and between water removing air jets 21a, by nip rolls 22 which rotate at a slower speed than rolls 13. The invention is described on respect of polypropylene homopolymer or copolymer (with ethylene) which may be coloured by 0À5 to 2% by weight of low density polyethylene colour masterbatch, and may be expanded by 0À0-0À5% by weight of blowing agent to increase the transverse strength of the strapping. The process conditions are specified in examples wherein 0À15 inch thick strapping is produced, the strapping being heated to about 110 C. by the heaters 8 and the water bath 4 being at 18 C. and the baths 12 and 21 at 8 C. The strapping may be stretched by a factor of between 6 and 11 to 1, between the rolls 6 and 13, and may relax in length up to 20% between the rolls 13 and 22.
Patent GB-1265473-A (GB)
IPC: C09J189/00
Filed: 1967-12-08
Abstract: 1,265,473. Coated particles. ALFRED ADAMS & CO., Ltd. 10 March, 1969 [8 Dec., 1967], No. 55838/67. Heading B2E. [Also in Division C3]  Particles of animal glue having a moisture content of not less than 20% are coated with oil, grease, powdered talc or whiting to reduce tendency to stick together.
Patent GB-1266004-A (GB)
IPC: H04L17/04
Filed: 1969-07-01
Abstract: 1,266,004. Teleprinter keyboards. MITE CORP. 1 July, 1969 [12 Nov., 1968], No. 33248/69. Heading H4P. [Also in Divisions B6, G4 and H1] A telegraph transmitter or teleprinter keyboard (see also Division G4) includes a number of code bars 14, each connected to a magnet 31, 32 &c., movable between two positions, a number of keys 12, each of which operates a unique combination of code bars, a flux responsive switch associated with each magnet, one position of each magnet serving to open and the other to close its associated switch and a means, e.g. a magnetic shunt, for increasing the flux change between the two positions of the magnets. The flux responsive switches 24 &c. are mounted behind a shielding wall 22 and the magnets are moved towards and away from the wall. A rotating wiper of adjustable width co-operates with fixed contacts each connected to one of the switches to serialize the data. The wiper is driven by a limited rotation clutch which converts the continuous rotation of a motor shaft into an intermittent rotation in response to actuation of the keys 12. A typeblock operated by the keys 12 is moved across the paper in response to movements of the clutch. Five bit representation is used and a sixth code bar to be moved by the non-character keys, e.g. carriage return, is included.
Patent GB-1266472-A (GB)
IPC: C07C17/25
Filed: 1970-07-15
Abstract: 1,266,472. 2-Chlorobutenes. DENKI KAGAKU KOGYO K.K. 15 July, 1970 [16 July, 1969], No. 34338/70. Heading C2C. 2-Chlorobutenes are obtained by contacting 2,3-dichlorobutane with an Fe compound as catalyst, in the presence of at least 0À01 mole of 0 2  per mole of 2,3-dichlorobutane, in the vapour phase at 200‹ to 450‹ C. The process may be operated continuously. The Fe compounds may be supported on a carrier, e.g. α-alumina. Examples are given which illustrate the process of the invention.
Patent GB-1295165-A (GB)
IPC: E21D23/04
Filed: 1970-03-26
Abstract: 1295165 Advancing mine roof supports GEWERKSCHAFT EISENHUTTE WESTFALIA 26 March 1970 [3 April 1969] 14779/70 Heading E1P In a mine roof support comprising two frames interconnected by an advancing jack, each frame is provided with two telescopic props D which engage in base members 1, 2 interconnected by a rigid member 3 pivotally attached thereto. In order to limit relative pivotal movement between the base members and the member 3, the base members are also interconnected by means of a leaf spring 13 having two sinusoidal portions 13b which elongate and tend to straighten during relative pivotal movement in direction P. Upon pivotal movement in the other direction, the portions 13b of the spring are stopped by oblique portions 12 of the rigid member 3.
Patent GB-1296569-A (GB)
IPC: G05B17/00
Filed: 1970-09-17
Abstract: 1296569 Control system for ethylene polymerisation MITSUBISHI PETROCHEMICAL CO Ltd 17 Sept 1970 [1 Oct 1969] 44497/70 Heading B1X  A control system used in a tubular polymerisation apparatus in which ethylene E, initiator F and modified G are mixed, compressed in 1 and fed into tubular reactor 2 having heat exchangers 3, 4 then into product separator 5 to separate polyethylene from unreacted gases, comprises predictive control system comprising product quality inspection device 6 downstream of the product separator for measuring the quality of the polymer, for example a melt index value, temperature detecting means 7 for determining the temperature distribution within the reactor, a "predictive model" 8 comprising means for predicting a product quality value. Q from a temperature T m  detected in the reactor, a "model correcting device" 9 comprising means for transmitting a correcting signal to the predictive. model, the signal depending on simultaneously measured values of detected temperature and product quality and a manipulated value deciding device 11 comprising means for determining the deviation of the predictive product quality value from a desired value, and for changing at least one manipulated reaction variable in response to the determined deviation. The. system may have a plurality of predicitive models each corresponding to a different temperature detecting position in the reactor.
Patent GB-1296604-A (GB)
IPC: F01P7/04
Filed: 1970-12-04
Abstract: 1296604 Viscous shear coupling DAIMLERBENZ AG 4 Dec 1970 [5 Dec 1969] 57769/70 Heading F2C A viscous shear coupling, e.g. in the drive for an I.C. engine cooling fan, comprises a driving disc 12 in a working chamber 13 in a driven housing 14, the viscous liquid being fed to the working chamber from a reservoir 18 in the housing by a non-rotary scoop tube 27 adjusted in accordance with I.C. engine coolant temperature and delivering to an intermediate driven chamber 21 defined by walls 22, 23, the liquid being fed from the intermediate chamber via those holes 25 spirally arranged in wall 22 which are immediately adjacent the radially inner surface of the liquid in the working chamber. Holes or slots 29 in the driving disc 12 ensure distribution of the liquid to both sides of the disc. Discharge holes 24 are provided at the outer periphery of the wall 22 connecting the working chamber directly to the reservoir. Again, Fig. 2 (not shown), the intermediate chamber (20a) is wider axially at its outer diameter and tapers inwardly so that liquid flows more or less rapidly into the working chamber depending on the effective radial position at which it is flowing into the chamber.
Patent GB-1297069-A (GB)
IPC: A23K20/195
Filed: 1970-04-21
Abstract: 1297069 Cephalosporin derivatives BRISTOLMYERS CO 21 April 1970 [21 April 1969] 19062/70 Headings C2A and C2C Cephalosporin derivatives having the Formula I: wherein Ar is 2-thienyl, 3-thienyl or in which each of R<SP>1</SP> and R<SP>2</SP> is H, NO 2 , di-C 1-6 - alkylamino, C 1-6  alkanoylamino, amino, hydroxy, C 1-6  alkanoyloxy, C 1-6  alkyl, C 1-6  alkoxy, sulphamyl, Cl, I, Br, F or trifluoromethyl and non-toxic pharmaceutically acceptable salts thereof may be prepared by hydrolysing a compound having the Formula II: or a non-toxic salt thereof in the presence of an acid to remove the t-butoxycarhonyl functional group. The starting material of Formula II may be prepared by (1) acylating 7-amino-3- azidomethylceph-3-em-4-oic acid or a non-toxic salt thereof with an equimolar weight of an acid having the Formula III: or with a functional equivalent thereof in an inert solvent at a temperature below 5‹ C., or (2) acylating 7-amino-cephalosporanic acid or a non-toxic salt thereof with an equimolar weight of an acid having Formula III or with a functional equivalent thereof in an inert solvent at a temperature below 5‹ C. to form an intermediate having the formula or a non-toxic salt thereof and reacting the intermediate with sodium azide, in the presence of a base, in aqueous solvent. Preferably the acid hydrolysis reaction comprises treating the compound of Formula II with an excess of 40 to 60% aqueous formic acid or concentrated trifluoroacetic acid. The non-toxic pharmaceutically acceptable salts include Na, K, Ca, A1 and ammonium salts, substituted ammonium salts with amines and acid addition salts with mineral and organic acids. Antibacterial pharmaceutical compositions comprise compounds of Formula I and a diluent or carrier. The acids of Formula III wherein Ar is as defined above are prepared by reacting the corresponding acid having a free amino radical with t-butoxy carbonyl azide.
Patent GB-1301504-A (GB)
IPC: H03K23/54
Filed: 1970-12-15
Abstract: 1301504 MOSFET counter HUGHES AIRCRAFT Co 15 Dec 1970 [15 Dec 1969] 59494/70 Headings G4A and G4C A multiple stage counter circuit comprises a number of stages in series, each stage comprising a MOSFET flip-flop, there being two MOSFET gating transistors between each stage, whereby signals in transit between stages are stored in the inherent capacitance of the MOSFET's of the stages. The whole circuit may be constructed on a monolithic semiconductor substrate and may form part of a shift register circuit. Operation.-Initially a pulse on the reset line sets the flip-flop Q1 and resets all the others. At this time the Q 1  output is 1, the Q 1  output is 0, clock CLK is 0 CLK is 1, hence MOSFET's 1G 1A conduct and inputs 1N 2 , 1N 2  are 1, 0 respectively. When the CLK is 1, CLK is 0, and the MOSFET's 1G, 1A are turned off, this happens fairly slowly owing to the inherent capacitance of the MOSFET's. Thus 1N 2 , 1N 2  are 1, 0 respectively when the clock pulse CLK sets flip-flop Q2 and resets register Q1, and thus these pass to flip-flop Q2. When CLK is 0 again the same occurs between flip-flop Q2 and Q3 and so on through the stages. Ring Counter (Figure 3, not shown).-The first stage Q1 is eliminated and the outputs of the last stage are connected to 1N 2 , 1N 2  through MOSFET'S 1G, 1A. The reset line is connected to the direct set line DS of flip-flop Q2. Two embodiments of flip-flops are also described (Figs. 4 and 5, not shown).
Patent GB-1303985-A (GB)
IPC: A47B97/04
Filed: 1969-01-26
Abstract: 1303985 Drawing boards A J McGROGAN 26 Jan 1970 [26 Jan 1969] 48456/68 Heading A4H [Also in Divisions B6 and G2] A board unit comprises a pair of spaced parallel channel members 11 having angled portions, and a board 17 slidably mounted in the channels. As the board is moved from the major to the minor angled portions, its angle of orientation varies. The board may be counter-balanced with a spring or weight and pulley system.
Patent GB-1304280-A (GB)
IPC: B28B13/02
Filed: 1970-04-10
Abstract: 1304280 Slip casting apparatus GOUGH & CO (HANLEY) Ltd 12 July 1971 [10 April 1970] 17172/70 Heading B5A Apparatus for feeding ceramic slip to a mould comprises a slip reservoir 14, a slip dispensing nozzle 38 supplied therefrom by a tube 34 via a shut-off valve 36 controlled by a pneumatic cylinder 40, and two electrically conducting probes 62 attached to the nozzle for sensing the level of slip supplied to the mould and for controlling the operation of the valve. The nozzle is mounted on a wheeled gantry 2 and moved vertically thereon to a mould filling and a withdrawn position; during such movement cycle the probes are cleared by a brush 64 reciprocated horizontally. A plurality of such nozzle and valve assemblies for supplying a corresponding number of moulds are each adjustably secured to a bracket 44 moved vertically by a crank 54 on a shaft 52 driven by a reversible motor 60. The brush is mounted above a drip collecting tray 80 attached to a framework and oscillated horizontally in synchronism with the vertical movements of the nozzles. The drive therefore includes a cam on the driven shaft 52 which oscillates a lever connected to a crossbar 72 attached to pivoted links 74 between which the tray 80 and brush are supported.