baber/WOPTO huggingface dataset:
Patent GB-1394131-A (GB)
Title: Ripple control receivers
IPC: H02J13/00
Filed: 1972-07-19
Abstract: 1394131 Ripple control receiver LANDIS & GYR AG 19 July 1972 [26 July 1971] 33832/72 Heading H4G  In a ripple control receiver, a control order comprising start bits (e.g. LLO), address bits LOLLOO, -L-), an order bit (A), and a confimation bit (L), is compared bit by bit with a code stored in the receiver, the control indicated by the order bit A only being effected if the rest of the control order is identical to the stored code. Receipt of the start bit at a filter 37, Fig. 3, causes a differentiating circuit 51 to reset a flip-flop 55, thus starting a clock 39 which feeds a ring counter 41. The outputs 45 of counter 41 are selectively connected in accordance with the stored code with output lines 42-44: the signals on 42-44 are sequentially compared with the incoming signal at gates 48-50. If the incoming and stored bits "A" agree, then an output 56 from gate 50 sets a flip-flop 57 to change its output from 59 (no agreement), to 58, the output 58 or 59 controlling a master switch 63. If any of the control code start, address or confirmation bits differ from the stored bits on 42, 43 then gate 48 or 49 is enabled and flip-flop 55 is set; this stops 39 and resets the apparatus; otherwise, a pulse 46 from 41 opens gates 60, 61 for output 58 or 59. Finally, a pulse 47 causes flip-flop 55 to reset the apparatus. In the embodiment of Fig. 5, incoming pulses are stored in a shift register 75. The order of bits A are compared by means of a diode 86, a signal on lead 87 giving rise to a "1" signal for switch 63 at output 31 or 32 of a gating circuit 29. Diodes 82, 84 co-operate with resistors 88, 89 to provide signals 83, 85 which block circuit 29 if any of the other bit comparisons should be unsuccessful. The embodiments may be augmented for the processing of multiple command signals (Fig. 4, not shown), and the start bit may alternatively be a double length bit.
Patent GB-1119941-A (GB)
Title: Protection device
IPC: H02H1/00
Filed: 1966-08-19
Abstract: 1,119,941. Protective arrangements. G. S. BOWMAN. 17 Nov., 1965 [19 Aug., 1964], No. 33844/64. Heading H2K. To protect against, or to indicate the presence of, arcing faults in an electrical installation, a broad-band R.F. detector circuit is connected to the earth and/or neutral line or lines of the installation so as to respond to the radiofrequencies produced by an arc, alarm means responsive to the output of the detector giving a visual or audible alarm or initiating a tripping action. The detector circuit may comprise an LC circuit 10 tuned to accept radio-frequency signals, e.g. of 500-2000 kilocycles, and a diode 9. The alarm means may comprise a transistor amplifier 8, a monostable transistor pulse circuit 6, 7 and a relay 4, 5 controlling an indicator lamp 3.
Patent GB-1437875-A (GB)
Title: Guided missiles
IPC: G01S7/36
Filed: 1974-08-01
Abstract: 1437875 Radio guided missiles SAABSCANIA AB 1 Aug 1974 33962/74 Heading H4D When a guided missile is provided with a homing device, e.g. a radar, having a wide lobe RL, Fig. 1, or field or view, wherein the centre line of the lobe tracks the "radar centre of gravity" X, Fig. 2, said centre of gravity can be made to depart from a target M by the introduction (e.g. ejection by the target) of false target indicating means, e.g. chaff RM. The efficacy of such action is reduced by the additional use at the missile of a detector having a narrow lobe DS for detecting an effect only produced by the real target, e.g. an infra-red detector. Thus in the case of Fig. 2. the output of the detector falls and the radar is instructed to stop tracking the false "radar centre of gravity" and reacquire the real target. The search may be aided by the knowledge of the direction of the lobe DS when an output was last produced by the detector. The infra-red detector may be replaced by a second radar, a photodetector or a laser transmitter/receiver, the only requirement being a narrower reception lobe. The homing device may be a television tracker.
Patent GB-849465-A (GB)
Title: Art of producing filamentary polyacrylonitrile
IPC: D01F6/18
Filed: 1956-11-07
Abstract: The microporosity of polyacrylonitrile filaments which have been produced by wet spinning an aqueous solution of the polymer into an aqueous coagulating liquid is removed by passing the filaments through a drying zone occupied by a gas whose dry bulb temperature is between <PICT:0849465/IV(a)/1> 200 DEG  and 260 DEG F., and whose relative humidity at this temperature falls between the lines AB and CD of the temperature/humidity graph shown in the drawing, the filaments being passed sufficiently slowly through the drying zone to cause substantially all the water to be evolved from each filament and its structure to collapse.  The drying is preferably effected while the filaments are in a relaxed state.  In an example, a terpolymer containing in polymeric form 88% acrylonitrile, 6,4% 2-methyl-5-vinylpyridine, and 5,6% vinyl acetate dissolved in 47% aqueous sodium thiocyanate is wet spun into 10% aqueous sodium thiocyanate at - 2 DEG  C. to form a tow of gelled filaments which is cold stretched 300% while wet with coagulating bath liquid, and then stretched.  339% in water.  Samples of this tow are tray-dried for 1/2 hour at 230 DEG C. dry bulb temperature and 15, 21, 27 and 40% relative humidity respectively.  The filament material preferably contains more than 50%, and especially at least 80% by weight of polyacrylonitrile copolymerised with 2 to 10% by weight of a vinyl pyridine and 2 to 10% of a third copolymer.  A list of examples of vinyl pyridines and of suitable third copolymers is given.  The average molecular weight of the acrylonitrile homo- or copolymer is normally within the range 30,000-200,000, more particularly 40,000-100,000, and still more particularly 60,000-80,000.  Filaments treated according to the invention are homogeneous in appearance and structure. Specifications 714,530, 732,135 and 738,759 are referred to.
Patent GB-980351-A (GB)
Title: Farming tubes in dies
Inventor: MATSUKIN IURY GEORGIEVICH
IPC: B21D26/06
Filed: 1963-08-29
Abstract: 980,351. Stamping. KHARKOVSKY AVIATSIONNY INTITUTE. Aug. 29, 1963, No. 34184/63. Heading B3Q. In forming a tube 1 in a die 2 by a shock wave in liquid, the liquid is supported in the tube so that leakage occurs which is continuously replenished. The liquid leaks downwards at A1, between the tube 1 and a plug 4 extending into the divided die 2, and upwards at A between the tube and a cylinder 5 through which the liquid is supplied by means of a port B. One or two corrugations may be formed in the tube by expanding it against the die each time a piston 6 is propelled into the liquid, as by compressed air or the ignition of a liquid fuel in air. Between strokes of the piston, the die and tube assembly is moved along guides 3 exposing further sections to the shock waves. Openings 9, 10 in the cylinder prevent the formation of an air cushion and permit the escape of exhaust gases. In a modification, Fig. 3, the shock wave is produced by an explosion 16 in the liquid, which leaks downwards at A and escapes upwards at A1, being supplied through a pipe 15. The divided die 2a is surrounded by a ring 11 which is removed after a forming step so that the tube 1a may be raised in the die, exposing a further section to the forming chamber. A top ring 18 on the die is replaced by one, Fig. 4 (not shown), shaped to accommodate the formed section of the work-tube 1a
Patent GB-430803-A (GB)
Title: Improvements in collotype processes
IPC: G03F7/14
Filed: 1934-11-28
Abstract: 430,803. Photo-mechanical printing- surfaces. STEVENSON, A. H., Summerstown Works, Tooting, London.-(Assignee of Sperati, M. de, and Filippi, J. ; 10, Boulevard de la Bastille, Paris) Nov. 28, 1934, No. 34188. Convention date, Nov. 29, 1933. [Class 98 (ii)] Collotype plates for use in hand presses or for phototype or flat or off-set lithographic machines, are prepared by forming the image in a silver halide emulsion layer, having a network of capillary ducts formed therein, this layer being integral with another layer of material, preferably of a colloidal nature, non-sensitive, and capable of absorbing and retaining moisture. The network of capillary ducts is formed by projecting the negative of the image onto the layer through a screen having a surface presenting a network of depressions capable of refractive action. In carrying out the process, a layer of gelatin containing a small amount of dextrine and slightly hardened is applied to a support, e.g. a glass plate or film, and the surface is granulated. A fine-grain silver bromide or chloro-bromide emulsion is applied to the gelatin layer and exposed to a negative of the image through a refraction screen formed by exposing a bichromated gelatin layer to light under a ground-glass screen and washing to develop a collographic grain. The plate is developed in a metol-hydroquinone developer and bleached with a solution of potassium bromide, copper sulphate and potassium bichromate or chromic acid. The plate is then washed, dried and inked with the usual leather, gelatin, or rubber rollers.
Patent GB-384090-A (GB)
Title: Apparatus for heating gases by electricity
IPC: F24H1/14
Filed: 1931-12-10
Abstract: 384,090. Heating gases by electricity. CIGNOLO, E., Rue Alfred Defuisseaux, Grace-Berleur, Belgium. Dec. 10, 1931, No. 34272. Convention date, Jan. 26. [Class 39 (iii).] An apparatus for heating gases particularly suitable for breweries and in auto. genous welding consists of a tube 2 through which the gases to be heated are passed mounted with clearance within a refractory member 3 carrying an electrical heating resistance 3a, the tube being mounted in the refractory member within a casing 4 so as to be removable therefrom by detachment of one of the connecting sleeves 2a or 2b and its corresponding ring 6a or 6b.
Patent GB-997015-A (GB)
Title: Apparatus for playing darts games
IPC: A63F9/02
Filed: 1965-01-12
Abstract: 997,015. Dart games. W. E. P. MURRAY. Jan. 12, 1965, No. 34414/61. Heading A6H. Apparatus for playing a dart game simulating football, comprises a target board having its playing surface marked to represent one half of a football pitch, and subdivided into squares, the markings comprising a wire frame laid over the board. The squares comprise different colours, denoted by reference letters a, b and c. The game is played according to rules described in the Specification, using two sets of darts which are preferably distinguished by colour.
Patent GB-1018086-A (GB)
Title: Improvements in power sweepers
IPC: E01H1/05
Filed: 1962-09-10
Abstract: 1,018,086. Road sweeping machines. G. H. TENNANT CO. Sept. 10, 1962 [Sept. 13, 1961], No. 34475/62. Heading E1G. A road sweeping vehicle comprises a brush 19 mounted in a housing 18 communicating with a removable refuse receptacle and filter unit 40, supported between forwardly extending portions 11f of the vehicle body 11 by arms 35L integral with or rigidly secured to a shaft 26 rotatably mounted on the vehicle body. The unit is tilted for emptying the receptacle 41 by the action of an hydraulic cylinder 31 on a crank 27 mounted on the shaft 26. Pivots 65 which engage in notches 36 in the arms 35L are so located that the unit 40 tends to tilt in the direction of the arrow 66, the tilting movement being limited by engagement of stops 68 on the arms 35L with brackets 67 on the unit 40. The stops are adjustable to vary the clearance under the edge 47 of the refuse receptacle 41 and the unit 41 can tilt about pivots 65 when an obstruction such as a stone 63 is encountered. A plenum chamber 44 above the filter housing 43 communicates with the inlet 56 of a suction blower 50 mounted on the main body of the vehicle when the unit 40 is in operative position. The brush 19 is supported by arms 19A pivoted on the vehicle frame and automatically lowered as the diameter of the brush decreases, with wear. The brush is linked to a lever 15B which is normally movable along the longer limb on an L-shaped slot on the machine frame but which when located in the short limb maintains the brush in a raised position. A lower limit may be imposed on the free floating action of the brush by pivoting a lever 80 to cut off the end of the longer limb of the slot. A kerb brush (not shown) of adjustable height may be provided. To use the vehicle for general transport purposes the unit 40 is raised by the cylinder 31 and removed and the arms 35L lowered to receive, e.g. firefighting or snow-clearing equipment having pivots similar to the pivots 65.
Patent GB-619035-A (GB)
Title: Water-soluble phthalocyanine derivatives
IPC: C09B47/12
Filed: 1946-11-22
Abstract: Phthalocyanine derivatives containing sulphonium salt groups are made by reacting a phthalocyanine containing at least two chloro-or bromo-methyl groups with thiourea or a substituted thiourea, hydrolysing the product with alkali to replace the salt groups by alkali metal mercaptide groups, alkylating, and subsequently reacting the so-obtained bisalkylmercaptomethyl phthalocyanine with such an ester as is known to convert organic sulphides into ternary sulphonium salts.  In examples: (1) copper tri-(chlormethyl) phthalocyanine is reacted with thiourea, followed by hydrolysis with caustic soda, alkylation with dimethyl sulphate, and conversion to the sulphonium salt with more dimethyl sulphate; (2) as (1), but using metal-free tri-(chlormethyl) phthalocyanine; (3) copper tri-(chlormethyl) phthalocyanine is reacted with tetramethylthiourea, subsequent treatment being as in (1); (4) as (1), but using benzyl chloride for the alkylation step; (5) as (1), but using o-tolylthiourea instead of thiourea. Other reactants specified are copper tetra-(chlormethyl) phthalocyanine, copper tri-(chlormethyl)-octa-3 : 6-chlorphthalocyanine, copper tetra - (chlormethyl) - tetra - 4 - benzoylphthalocyanine, copper tri - (bromo - methyl) - phthalocyanine, N - methylthiourea, N-o-tolyldimethylthiourea, N.N.N1-trimethylthiourea, ethyl chloride, and methyl p-toluene-sulphonate.  The products are soluble in water, and dye cotton blue or green.  Solution in water may be assisted by wetting agents, e.g. condensation products of b -naphthol and ethylene oxide.
Patent GB-905654-A (GB)
Title: Improvements in or relating to electric apparatus
IPC: H01C1/14
Filed: 1959-10-13
Abstract: 905,654. Circuit assemblies; resistors. GENERAL ELECTRIC CO. Ltd., and NEEDLE, C. D. T. Oct. 11, 1960 [Oct. 13, 1959], No. 34668/59. Class 37. An electrical component assembly comprises a plurality of electrical circuit components 2, 3, 4, encased in a block 14 of potting resin with connections made within the block between the components and a plurality of connecting strips 15, 16, 17, 18, which project outside one end of the block to provide input and output points 5, 7 and a common terminal 9 and outside the other end of the block to provide intermediate connection points 10, 11, 12, 13, the arrangement being such that by connecting together intermediate points 10, 11, input and output points 5, 7 are connected directly together while point 9 is isolated therefrom while by connecting together intermediate points 12, 13 a component is connected between each of the pairs of terminals 5 and 7, 5 and 9, 7 and 9. A connector, Fig. 3, comprising a helical spring 27, arranged within a nylon sleeve 28, as described in Specification 905,653, and of a suitable size to be a push fit over connection points 10, 11 or 12, 13 is provided to make the connection between either pair of intermediate points. Insulating spacers 22, 23 are arranged between intermediate points 10, 11 and 12, 13, respectively. The components 2, 3, 4 are preferably all resistors connected in a #-configuration, Fig. 2 (not shown), to serve as an attenuator pad which can either be connected into circuit between terminals 5 and 7 or removed therefrom by placing the connector over points 12, 13 or over points 10, 11, respectively. Fig. 4 shows multiple attenuator unit comprising a plurality of attenuator pads clamped together between brackets 35, 36 by threaded rods 33, 34 which are located in grooves 43, Fig. 1, in the sides of the pads. Adjacent input and output terminals 5, 7 on successive pads are connected together as are also all the common terminals 9. A desired value of attenuation may be inserted by the unit by appropriately positioning the connector units.
Patent GB-325599-A (GB)
Title: Improvements relating to dynamos
IPC: H02K23/42
Filed: 1928-11-24
Abstract: 325,599. Rotax (Motor Accessories), Ltd., and MacFarlane, J. E. Nov. 24, 1928. Exciting; field magnets.-In a dynamo of the type having each pole divided into two parts of the same polarity and adapted to give constant volts with varying load, one part of each pole has a series winding in addition to the shunt winding and each bifid pole has a shoe joining the two pole parts so arranged as to make a good magnetic joint with one and to be separated by an air-gap or its equivalent from the other part which carries the series winding. In the twopole machine shown, each pole consists of two parts a, b given a common polarity by means of a shunt coil c and joined by a pole-shoe d. The shoe joints with the parts a, b respectively are made by means of magnetic and non-magnetic insertions e, f, the non-magnetic gap being provided on the leading pole part b which carries the series coil g. Specification 222,273 is referred to.
Patent GB-609227-A (GB)
Title: Improvements in or relating to control systems for direct current motors supplied from a constant current source
IPC: H02P5/685
Filed: 1945-12-21
Abstract: 609,227. Automatic speed control of motors; exciting dynamo-electric machines. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Dec. 21, 1945, No. 34677. Convention date, Nov. 16, 1944. [Classes 35 and 38 (iv)] [Also in Group XXXVII] A control system comprises a direct-current motor having an armature winding and field winding means, means for producing a directcurrent of constant magnitude for energizing said armature winding, means for producing an electrical potential of constant magnitude, means for producing an electrical potential varying in magnitude according to the motorspeed, means for energizing the field winding means in accordance with the difference of said potentials, and means for completely deenergizing said motor at a predetermined low motor-speed. The armatures of a plurality of direct-current motors are supplied from a constant current generator 1G, the control system of one of the motors 1M being shown in detail, the other motors being similarly controlled. The field winding 1MF of the motor 1M is energized from an exciter C which has a series winding CSF, a field winding CPF energized from a constant voltage generator 2G, and a differential field winding CVF excited by a tachometer generator PG. A variable resistor TR is adjusted so that the resistance-line of self-energization of the generator C is coincident with the initial straight line portion of its noload saturation curve. When the motor 1M is running, any deviation of its speed from that corresponding to the setting of a resistor AR1 will vary the excitation of the exciter C to correct the deviation. During the 'early part of the acceleration period, the generator C is operated on a level portion of its characteristic so as to provide substantially constant motor field excitation and torque. Similar conditions obtain during regenerative deceleration, the excitation of the generator C being controlled by the winding CVF. At a predetermined low motor speed, a switch S opens and a resistor 1R is placed in the motor circuit. A circuitbreaker CB is de-energized and closes contacts CB2 to short-circuit the motor armature across the resistor 1R. Contacts CB1 open to deenergize the motor field winding 1MF. The exciter field winding CVF may be connected across the armature of the motor 1M, to respond to its back-electromotive force. The motor may be provided with two field windings connected in a bridge circuit, two opposite corners of which are connected to a constant source and the other corners connected to a, potential varying with the speed of the motor and opposing the constant potential. Interlocking relays ensure that the differential energization does not become effective until a predetermined motor-speed is reached. The variable potential may be the back-electromotive force of the motor, or that of a tachometer generator.
Patent GB-411519-A (GB)
Title: Improvements in and relating to gas discharge relay circuits
IPC: H01J13/48
Filed: 1932-12-07
Abstract: 411,519. Circuits for gas-discharge tubes. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Thompson, H. C. ; 119, S. Arlington Avenue, East Orange, New Jersey, U.S.A.) Dec. 7, 1932, No. 34712. Convention date, Dec. 7, 1931. [Class 40 (v).] A primary variable 17, Fig. 2, in shunt with one 11 of a pair 11, 12 of series connected gas-discharge tubes changes the distribution of voltage on the tubes to cause the tubes to break down in rapid succession and pass a current which operates a relay 3 or other control. A transformer 13 applies an alternating or pulsating potential with a peak value less than twice the breakdown voltage of one tube, and greater than twice the voltage drop across one tube when current is flowing. A capacity 16 and a resistance 18 are connected in parallel with the tube 12, and a photo-electric cell 17 and a capacity 15 in parallel with the tube 11. As shown in Fig. 5, one 40 of a group of adjacent capacity plates 38, 39, 40 is connected to a point between the tubes 32, 33 and the remaining plates are connected to either side of the tubes. A potential from a source 45 is applied to a second group of capacity plates 41, 42, 43 opposite the first group, and the presence of an object near the plates automatically causes the potential across one of the tubes so to increase that the tube breaks down. According to a further modification, the variable impedance across the tube is a thermionic valve, the impedance of which is changed by the reception of high-frequency current.
Patent GB-1148404-A (GB)
Title: Improvements relating to the manufacture of ceramic tableware articles
Inventor: PALMER JAMES MORRIS
IPC: B28B7/00
Filed: 1966-08-04
Abstract: 1,148,404. Moulding ceramic tableware. BRITISH CERAMIC RESEARCH ASSOCIATION. 1 Aug., 1967 [4 Aug., 1966], No. 34914/66. Heading B5A. [Also in Division A4] Ceramic tableware is compression moulded between male and female dies 10 and 11, the latter of which has three small circular depressions 15 which produce supporting protrusions on the tableware. The die 11 is located in a box 12 having a hole 14 through which the ejection plunger moves.
Patent GB-605507-A (GB)
Title: Improved safety razor
IPC: B26B21/42
Filed: 1945-12-27
Abstract: 605,507. Safety razors. GIDDINGS, J. L. Dec. 27, 1945, No. 34955. [Class 30] A safety razor adapted for haircutting comprises a three-hole razor blade e placed on three pins of a base c, a distance piece a with three holes, fitting on the pins over the blade, a curved combmember b also having three holes placed over the distance-piece with the hollow side towards the distance piece, and a handle d, screwed on to the centre pin so as to clamp the parts together.
Patent GB-1040283-A (GB)
Title: Improvements in or relating to the selection of a card from a pack
IPC: G06K21/00
Filed: 1963-09-04
Abstract: 1,040,283. Statistical apparatus. MOSLER SAFE CO. Sept. 4, 1963 [Sept. 6, 1962], No. 34972/63. Heading G4M. A card having code notches 14 which correspond to the actuated selector bars 16, 18, is ejected from a stack of cards 10 by an air blast from a nozzle 20, bridges 25 being provided to deliberately cause turbulence in the air stream and thereby reduce fluttering of the cards. Nozzle 20 and stack 10 may be moved, one relative to the other, to effect attempts at ejecting the cards in turn.