baber/WOPTO huggingface dataset:
Patent GB-964224-A (GB)
Title: Pulse synchronization system
IPC: H04N5/12
Filed: 1960-11-25
Abstract: 964,224. Radio navigation; automatic phase control systems. SPERRY RAND CORPORATION. Nov. 25, 1960 [Dec. 4, 1959], No. 40578/60. Headings H3A and H4D. Pulsed carrier signals, e.g. in a Loran receiver, are detected by a synchronous oscillator 5 in a phase detector 4 and the envelope of the resulting positive or negative pulses sampled in a gate 12 by pulses of equal frequency which may be derived from a frequency divider 13 operated from the oscillator 5 through phase shifters 6, 15, the output of gate 12 through a servo system 17 adjusting the phase shifter 15 until the divider output pulses coincide with a particular point of the incoming pulse envelopes. This point may be the zero crossover point of bi-directional pulses produced by differentiating in circuit 11 the output of detector 4. Since the outputs of 4, 11 reverse in polarity dependent on the phase sense of oscillator 5, the 180 degrees ambiguity may be resolved by sampling the output polarity of detector 4 in a gate 24 by further pulses from divider 13, the sampled output actuating a polarized relay 18 changing over as and if necessary the sense of the input to servo 17 and its direction of correcting phase shifter 15. The output of oscillator 5 from phase shifter 6 is stabilized at 90 degrees relative to the phase of the I.F. from receiver 2 by beating them in a synchronous detector 32 whose output is sampled by pulses from divider 13 in a gate 33 and applied through a servo 9 adjusting phase shifter 6 until the exact 90 degrees phase difference results. A further 90 degrees phase shifter 7 then finally produces exact in-phase relation of the inputs to detector 4. The slowness in final correction of the latter control loop renders the change-over gate 24 and relay 18 necessary. Specifications 668,777 and 825,644 are referred to.
Patent GB-1086315-A (GB)
Title: Improvements in or relating to data transmission systems
IPC: H04L1/16
Filed: 1964-10-06
Abstract: 1,086,315. Data transmission. ING. C. OLIVETTI & C. S.p.A. Oct. 6, 1964 [Oct. 14, 1963], No. 40612/64. Heading H4P. A block data digital transmission system in which an ordinal number is added to each block includes a block counter at the receiver which is stepped at the end of each block if the block has been correctly received and if the received block number agrees with that of the receiver counter. The receiver then returns to the transmitter a signal representing the block number after said step has occurred, and this signal is compared with the number of the block currently being transmitted. The system comprises a tape transmitter giving a block of signals terminated by an end of block character. Three multi-bit check characters are derived and follow the transmitted block, which is preceded by an ordinal number A, B, or C. For example, suppose the first block is numbered A, line CTR, Fig. 2a. When the block and its associated characters arrive at the receiver, whose counter is assumed also to be in state A, line CRC, the numbers are compared and the block tested for correct reception by means of the check characters. If there is agreement the receiver counter advances to B and a multi-bit signal representing that number is returned to the transmitter where it is decoded to indicate count B. Meanwhile a second data block has been transmitted, numbered B. The decoded received count B and that of the block being transmitted are compared and, if equal, the transmitter counter is stepped for the next block number. In the event of mutilation on the return channel, for example as at the third block, Fig. 2a, the transmitter is stopped until the next return signal, A in this example, is received. Logic circuitry determines that this is one greater than the count now at the transmitter counter, so the counter is stopped and transmission restarts. Fig. 2b illustrates the action consequent upon mutilation on the forward channel in the second block. In this case the tape reader reverses until this block and the third, which has also been transmitted, can be repeated. An error-indicating character is punched in the faulty data block at the receiver.
Patent GB-1313241-A (GB)
Title: Process for the production of tetronic acid
IPC: C07D307/60
Filed: 1971-09-01
Abstract: 1313241 Tetronic acid LONZA Ltd 1 Sept 1971 [4 Sept 1970] 40771/71 Heading C2C Tetronic acid is produced from a γ-monohaloacetoacetic acid by reaction in aqueous solution with aqueous alkali, preferably 2 to 3 moles of NaOH or KOH per mole of organic starting material, acidification with a non- oxidizing mineral acid (e.g. HCI, H 2 SO 4 ), evaporation to dryness and subsequent isolation of the product by sublimation from the residue at 80‹ to 130‹ C. and 10-1 to 10<SP>-3</SP> mm. Hg. The preferred organic starting material is γ-bromoacetoacetic acid or γ-chloracetoacetic acid.
Patent GB-991582-A (GB)
Title: Method and apparatus for the mechanised mining of coal
IPC: E21C41/18
Filed: 1962-10-29
Abstract: 991,582. Mineral mining. DEMAG AG., and HAMBORNER-BERGBAU AG. Oct. 29, 1962 [Oct. 28, 1961], No. 40868/62. Heading E1F. A modified form of stall and pillar mining comprises forming inbye from a drift 1 at an edge of a panel of a seam to be mined a stall 3 having a face 4 of saw tooth formation. To the rearmost inclined wall of the face is applied a mining machine 5 which is advanced through a curve out of the drift over suitable guiding means 11 to engage the inclined wall at right angles and enter the seam in a curve to eventually drive a heading at right angles to the drift. The self propelled machine comprises a cutter unit 5 having retractable hewing arms 5a, 5b and a conveyer 9. At the completion of the heading the hewing arms 5a, 5b are swung outwards before the machine is withdrawn so that as the machine is withdrawn the heading is laterally enlarged, the pillar remote from the direction of mining advance through the panel being completely or partially mined out. As the machine returns to the curved entry into the seam the hewing arm 5b is retracted so that a sickle shaped pillar 7 is left adjacent the drift. When the machine is withdrawn from the seam on to the guiding and supporting platform structure positioned in the drift the structure is advanced so that the cycle of operations can be repeated on the next inclined wall of the stall. The platform structure consists of a bridge straddling a conveyer extending through the drift and a track-carrying platform having a laterally pivotable nose section. Means for vertically adjusting the platform and anchoring the structure in the drift are provided.
Patent GB-1202871-A (GB)
Title: Improvements in or relating to wall, roof and like building structures
Inventor: STEADMAN WILLIAM DAVID
IPC: E04B2/38
Filed: 1966-09-14
Abstract: 1,202,871. Building elements. W. D. STEADMAN. 12 Sept., 1967 [14 Sept., 1966 (2)], Nos. 41093/66 and 41094/66. Heading E1B. A building structure for walls, comprises modules 1, 1a made from insulating material e.g. polyurethane foam, lightweight concrete, &c., horizontal and vertical wooden or metal frameworks 9, 9a engaging offset edge grooves in the modules and held together by tie bolts 13, and horizontal and vertical reinforcing rods 5, 4 embedded in concrete in channels 3 at the edges of the modules. The outer surfaces of the modules may be formed with grooves 12 or have a wire mesh netting for keying plaster 10. The connection of the walls to foundations, roofs and ceilings is by projecting tie rods and monolithic casting of the concrete. T-junctions, corners and buttresses are also described. The floor panels have only one channel section framing member, the opposite end of the channel containing the concrete being closed by a bung of insulation material (Fig. 8).
Patent GB-1078756-A (GB)
Title: Process for the preparation of 3-methylflavone-8-carboxylic acid
IPC: C07D311/30
Filed: 1964-10-09
Abstract: Carboxylic acids of the formula <FORM:1078756/C2/1> are prepared by oxidizing the corresponding compound having at the 8-position an alkenyl group of 3 carbon atoms in a pyridine-water suspension with an oxidizing agent, such as potassium permanganate, in the presence of a magnesium salt of a mineral acid such as magnesium nitrate, then filtering the reaction mixture and acidifying the filtrate to produce the free acid.  The carboxylic acid may be converted to the hydrochloride of an ester of the formula <FORM:1078756/C2/2> by reaction with a chloride of the formula RCl.HCl, where R is -CH2-CH2-N(CH3)2, -CH2-CH2-N(C2H5)2, -CH2-CH2-N(nC3-H7)2, -CH2-CH2-N(iC3H7)2, -CH2-CH2-CH2 -N(CH3)2, -CH2-CH2-CH2-N(C2H5)2, b -piperidinoethyl- or b -morpholinoethyl-.  8-Allyl- and 8-(propenyl-1)-3-methyl-flavone are prepared by reacting 3-allyl- and 3-(propenyl-1)-2-hydroxy-propiophenone with benzoyl chloride.  3 - (Propenyl - 1) - 2 - hydroxy - propiophenone is prepared by the isomerization of the corresponding 3-allyl compound.
Patent GB-1104794-A (GB)
Title: A device for heating thermoplastic tubes and the like
IPC: H05B3/00
Filed: 1963-10-19
Abstract: 1104794 Electric heaters W T GRIFFITHS 16 Oct 1964 [19 Oct 1963] 41394/63 Headings F4W and W61 Apparatus for heating thermoplastic pipes prior to bending comprises a metal cylinder 17 with an asbestos lining 18 carrying spiral heating elements 19 and mounted between end-plates 13, 14, carried by a support tube 12. The elements are controlled by a series/parallel three-heat switch 20. In use the thermoplastic pipe is threaded over a rod 27 passing through the heater cylinder and supported on the hook 29, and a cylindrical rubber or like resilient core is hung from the hook 29. After heating, the thermoplastic pipe is drawn over the core, and removed to the bending mould with the core inside it.
Patent GB-1455205-A (GB)
Title: Lobate polyester filaments
IPC: D03D27/00
Filed: 1974-09-24
Abstract: 1455205 Lobate polyester filaments EI DU PONT DE NEMOURS & CO 24 Sept 1974 [24 Sept 1973] 41549/74 Heading B5B [Also in Division Dl]  Polyester filaments of 2-14 denier having an oblong cross-section, Fig. 1, continuously along their length are characterized in that (a) major and minor axes of symmetry are perpendicular to each other, (b) the ratio of length A to width B measured along the axes of symmetry is 1À4-2À4, (c) a lobe is located on each extremity of the major axis and has a tip ratio r./R of 0À20-0À45, (d) a lobe is located on each extremity of the minor axis and has a tip ratio r 2 /R of 0À8-2À1 times the ratio r 1 /R and, (e) indentations are present between each adjacent pair of lobes on the major and minor axes, the shortest distance d between two indentations on opposite sides of the major axis being from 1À2-2À0 times the radius r 1 . Suitable crosssections are shown in Figs. 2, 3 and 4. The filaments are melt spun using a spenneret having clusters of diamond shaped or linked circular orifices there being 3 orifices in each cluster as in Figs. 5 and 6. The filaments are drawn and crimped in a stuffer box to form staple fibres useful in the preparation of fur pile fabrics.
Patent GB-1298092-A (GB)
Title: Amplifiers having load protection means
Inventor: HANEDA YOSHIAKI
IPC: H03F3/30
Filed: 1970-08-28
Abstract: 1298092 Transistor amplifying circuits SONY CORP 28 Aug 1970 [28 Aug 1969] 41575/70 Readings H4J J24D J24B1B and J24A4A An amplifier in which the load is directly connected to the output stage is provided with means for detecting the application of an undesirable D.C. voltage to the load, the detecting means controlling switching means which prevent the application to the load of the undesirable D.C. voltage. The embodiment comprises an amplifier in which a preliminary stage 2, Fig. 1 directly coupled to a pair of complementary type transistors 3, 4 each of which drives one transistor 5, 6 respectively, of the output stage. Transistors 5, 6 are connected in series between equal supply voltages of opposite polarity +B, -B respectively, so that the speech coil 22 of the loudspeaker SP can be connected directly between the point P and earth. A D.C. selection circuit, comprising resistor R10 and capacitor Cl is connected between point P and earth; if D.C. of either polarity is detected, an input is applied to D.C. to D.C. converter 7, the output of which is proportional to the input, but always of the same sign. This output renders SCR conductive, whereby the bases of transistors 3, 4, are clamped to earth potential via diodes D2, D3, D4, D6, thereby rendering the output transistors 5, 6 non- conductive. The D.C. to D.C. converter 7 comprises a transistor oscillator 9, Fig. 2 energized from input terminals r, irrespective of their polarity, by means of bridge rectifier network 8. The output from oscillator 9 is fed via a transformer to rectifier 10 and a smoothing capacitor.
Patent GB-1364575-A (GB)
Title: Method for radiological well logging
IPC: G01V5/04
Filed: 1972-09-08
Abstract: 1364575 Borehole logging TEXACO DEVELOPMENT CORP 8 Sept 1972 [20 Sept 1971] 41712/72 Heading G1A In borehole logging, in which a fast neutron source is repetitively activated to produce bursts 33 of neutrons, during which periods the scintillation detector output is gated (periods 34) for processing the pulses representing gamma rays (31) produced by inelastic scattering of the neutrons by the earth formations, before each detection cycle 34, a similar duration detection period 35 is provided during which the detector output is gated to provide signals representing background gamma rays (32) resulting from thermal neutron capture, which background can be subtracted from the inelastic gamma pulse rate for correction purposes. In apparatus such as that of Fig. 1, in which a sonde as in Specification 1364573 is used, a similar pulse weight analyzer 25 is used which counts pulses, due to inelastic gamma rays, in four energy bands representing C, O, Si and Ca, while the background gammas are counted by analyzer 24 in four equivalent energy bands. A ratio of carbon to oxygen for inelastic gammas, corrected for background gammas, is computed in device 26.
Patent GB-1381895-A (GB)
Title: Crystal oscillators
IPC: H03B5/32
Filed: 1972-09-08
Abstract: 1381895 Oscillators; acoustic surface-wave devices MARCONI CO Ltd 18 July 1973 [8 Sept 1972] 41753/72 Headings H3F and H3U An oscillator comprises an amplifier and a surface wave delay line connected as a regenerative feedback path around it, the delay line having sending transducer means 14 and receiving transducer means mounted on it, in which the latter comprises two or more separate transducers 10, 12 each comprising a pair of interdigitated comb-like electrodes 16, 18, arranged at differing distances from the sending transducer, the feedback signal due to any of the separate transducers being insufficient in itself to sustain oscillation. Feedback over a single transducer would be capable of producing oscillation at a number of frequencies, whereas the outputs from two or more receiving transducers with differing spacing from the sending transducer can be arranged so as only to reinforce one another at a single frequency.
Patent GB-1162022-A (GB)
Title: Improvements in or relating to Force Transmitting Members
IPC: F16C7/00
Filed: 1966-09-19
Abstract: 1,162,022. Helicopter rotors. BENDIX CORP. 19 Sept., 1966 [21 Oct., 1965], No. 41801/66. Addition to 1,045,723. Heading B7W. [Also in Division F2] A tie-bar for joining a helicopter rotor blade and rotor hub, comprises two or more endless bands 80, 82, 84, Fig. 4, each built up from layers of tape. comprising parallel filaments of wire or glass fibre bonded together and separated by an elastomeric substance such as polyurethane, passing round two end fittings 72 adapted to be connected to the structures, the bands being encased, separated, and bonded to the end fittings by the elastomeric substance, which constitutes a filler of low elastic modulus. Molybdenum disulphide may be added to the polyurethane to prevent chafing between the wires. In Figs. 4, 5 the symmetrically arranged bands are radially and transversely spaced apart, each end fitting being a one-piece member. In Fig. 2, the centre lines of the two bands lie in a common plane, and the inner band is received by a bush 32 while the outer band is received by a half-bush 34 bearing on the flanges of the bush 32. On assembly to the structures, side washers (not shown) maintain the bushes in alignment. Elastomer 66 fills the space between the bands (Fig. 3, not shown) and forms fillets 102, 104 at the bushes. It is stated that in use in a helicopter rotor, failure of one of the bands results in a change of feel in the pilot's control to give warning of the increased loading of the remaining band(s).
Patent GB-974264-A (GB)
Title: Improvements in or relating to miniature lamp holders
Inventor: GREASLEY ERIC ARTHUR
IPC: B60Q3/04
Filed: 1962-11-07
Abstract: 974,264. Lamp holders. PRESSAC Ltd. Oct. 8, 1963 [Nov. 7, 1962], No. 42077/62. Heading H2E. A miniature lamp holder comprises a metallic body 1 closed at its forward end by a metal plate 2, formed with an opening 4 for the reception of a screw-threaded lamp cap, and a contact member 9 attached to insulating discs 10 and 11 by distortion of the contact member, said disc 11 having U-shaped slots cut around its circumference to provide resilient ears 13. The holder is wired by passing the wire through an aperture in the rear wall of the body, through opening 4 and through the centre of contact 9, which for this purpose is initially outside the body, the bared ends of the conductor being soldered to the contact 9, forming a contact surface 8a. The contact is then pulled by the wire through the opening in the front plate when the ears 13 fold up in umbrella style. When the contact is inside the body the disc 11 again expands due to its resiliency and prevents withdrawal of the contact through the front opening. A spring 15 urges the contact into engagement with a bulb inserted in said opening. In a second embodiment the holder may be adapted to receive a bayonet lamp.
Patent GB-936243-A (GB)
Title: Photographic roll-film camera
IPC: G03B19/04
Filed: 1959-12-10
Abstract: 936,243. Cameras. E. KURBI, and C. NIGGELOH, [trading as KURBI & NIGGELOH METALLWARENFABRIK]. Dec. 10, 1959 [Dec. 10, 1958], No. 42092/59. Addition to 936,242. Class 98 (1). In a roll-film camera constructed to leave a longitudinal marginal portion of the film to one side of the image area, as described in the parent Specification, a part of the space in front of the unused portion of film is used to accommodate a viewfinder which may be of the brilliant type, in which there is only one reflection (Fig. 3), or, as shown in Fig. 2, may provide for viewing along the camera axis by having two reflecting surfaces 17 and 18. The periscopic action may alternatively be produced by means of a prismatic rod having two silvered surfaces. The space 14 may be used for the accommodation of other camera parts or a data-marking device.
Patent GB-1325346-A (GB)
Title: Quarry conveyorloaders
IPC: B65G47/19
Filed: 1970-09-03
Abstract: 1325346 Endless conveyers EUROPEENNE DE MANUTENTION CONTINUE 3 Sept 1970 [5 Sept 1969] 42129/70 Heading B8A In a mobile loading machine comprising a shoot 6 for delivering materials to an endless conveyer belt 3, an adjustable deflector plate 12 is pivotable mounted above the conveyer to control the depth and hence the amount of material carried by the conveyer. Weight sensitive means C1 disposed beneath the conveyer belt detect the presence of large lumps on the belt and control an electric motor 51 driving a screw jack 38 coupled to the deflector 12 to raise the latter out of the path of the large lumps. A time delay 58 in the motor control. circuit ensures the lumps have passed the vicinity of the deflector before the electric motor is activated to lower said deflector. Alternatively the plate 12 may be controlled by means measuring the tension in the belt, or the electrical current absorbed by the motor driving the belt.
Patent GB-921620-A (GB)
Title: Improvements in or relating to colliery and like winding arrangements
Inventor: BOWLER JOHN JOSEPH
IPC: B66B17/20
Filed: 1960-12-08
Abstract: 921,620. Decking gear for pit cages. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Nov. 3, 1961 [Dec. 8, 1960], No. 42242/60. Class 78 (4). The deck 2 (Fig. 2) of a pit cage 1 can be moved vertically to compensate for decking errors. In the form shown the deck is lifted by rams 8 mounted at the landing. The rams are connected by linkwork to move conjointly about pivots 9 to a retracted position in which they are held by a bolt 14 sliding in a locking cylinder 15. The inward movement of the rams 8 to their working positions is effected by a ram 10 and limited by stops 11. The upward movement of the rams 8 is limited by their heads 13 engaging the underside of the landing, or by an internal stop in the cylinders, or by a limit valve closing the supply of fluid at the proper level. The rams may be supplied through non- return valves so that they do not retract if the supply fails, and keys are placed under the deck when it engages a roller operating a switch 7. An interlock prevents extension of the rams 8 until they have been swung inwardly. Where the cage is guided by ropes a centring device such as that shown in plan in Fig. 3a is applied before the deck is levelled.
Patent GB-1322006-A (GB)
Title: Shift registers
IPC: G11C19/18
Filed: 1970-09-03
Abstract: 1322006 Shift register GENERAL INSTRUMENT CORP 3 Sept 1970 [8 Sept 1969] 42297/70 Headings G4A and G4C [Also in Division H3] In a shift register each stage of which comprises a FET input switch Q3, and a pair, Ql and Q2, of FETs cross-coupled via switches Q4 and Q5, a feedback loop controlled by a switch Q8 is provided between the output of FET Q1 in one stage and the input of FET Q2 in the preceding stage. The feedback loop provides a cross-coupling between the FETs so that the datum being shifted does not decay when the shift pulses, #3 and #8, are of long duration. In operation concurrent clock pulses #4 and #5 complete the cross-coupling between the storage FETs Q1 and Q2 the drains of which are connected via transistors Q6 and Q7 to a negative supply line 18. The concurrent shift pulses Q3 and Q8, which are 180 degrees out of phase with pulses #4 and #5, connect successive stages together and complete the feedback loop which cross-couples FET Q2 of one stage with FET Q 1 in the succeeding stage thus preventing the datum being shifted from decaying. Fig. 2, (not shown), illustrates how the circuit of Fig. 1 may be divided into identical modules which may be manufactured as integrated circuits. In this latter case a special "endstage" (60) must be added in order to complete the crosscoupling between the last two storage FETS and provide an output connection.
Patent GB-1409721-A (GB)
Title: Dynamoelectric machines
IPC: H02K3/52
Filed: 1972-09-13
Abstract: 1409721 Dynamoelectric machine insulation and windings GENERAL ELECTRIC CO 13 Sept 1972 [15 Sept 1971] 42449/72 Heading H2A In a dynamoelectric machine, an insulating material such as nylon is moulded directly on to the stator core to form a layer 32 for insulating the windings 27 from the poles 23 and yoke 21, and also to form axially projecting wall-like members 34, 38, 39 for holding the end turns 29 of the windings in the regions beyond the end faces of the core. The members 34, 38, 39 are formed with notches 41, 42 to provide access for a wire cutting tool &e. during a servicing operation. The moulding process additionally forms receptacles 43 for winding terminals 46, and also provides a set of tabs 68, 69 which function to locate the stator in a mould cavity in a further moulding process, the latter process resulting in the encapsulation of the core and windings in an insulation coating constituted by particulate material, e.g. sand, interstitially embedded in a matrix material (as discussed with reference to Fig. 6, not shown). (For Figures see next column.)