baber/WOPTO huggingface dataset:
Patent GB-1468893-A (GB)
Title: Multi-probe flux leakage testing apparatus
IPC: G01N27/82
Filed: 1974-06-03
Abstract: 1468893 Detecting flaws magnetically MAGNETIC ANALYSIS CORP 3 June 1974 [7 June 1973]  24550/74 Heading G1N In a multi-probe flux leakage flaw testing apparatus the outputs of the probes are processed to yield bi-polar signals having positive and negative portions corresponding to the largest positive and negative portions simultaneously occurring in the probes. Testing Assembly Fig. 4 and Figs. 3, 5, 6 (not shown).  The tube or rod 31 to be tested passes in the direction shown through a rotatable head 35 mounted on bearings 34 on hub 33 fixed to back plate 32, the head being driven by a belt. Mounted on the head are a pair of half cylinders 37, 37' between which two diametrically opposed adjustable pole pieces 38, 38' are clamped and which provide a steady magnetic field for passing through the tube 31. Probe carriers 44, 44' held in position in the cylinders 37, 37' by members 44 each supports a probe cartridge 45, 45' supported by spring biased lever arms 46, 46'. Each cartridge contains a desired number of probes, two as shown, of the type including a U-shaped magnetic core wound by a coil and having trapezoidal pole pieces adjacent tube 31, Fig. 2a (not shown). As the head rotates tube 31 is scanned in four helical paths. The probe circuitry, to left of dashed line of Fig. 8, is mounted on cards 51, 51' connected to slip rings 52-54 contacting brush assemblies 52'-54' to enable the signals to be passed to the processing circuitry. Circuitry Fig. 8. The probe coils 25-1, 25-2, .. 25-n are each connected via bi-polar amplifiers 61 and filter circuit 66 to respective opposite poled rectifiers 64, 65 with the diodes 64 from all the channels being connected together by line 68 and diodes 65 by line 69 yielding signals 73, 74. The circuit functions to produce on lines 68, 69 only the largest positive and negative signals simultaneously applied to respective sets of diodes and all diodes except those passing these largest signals are back biased. The signals in lines 68, 69 are then applied to transistors 75, 76 which forms a combining circuit to yield a bi-polar signal 79 at 80 which is fed via slip ring 81 to a connector 82 on the stationary mounting. In order to distinguish between outside diameter, O.D., flaws and inside diameter, I.D., flaws two channels are provided which include respective R.C. band pass filters 92, 93. After filtering at 94, 94' to eliminate high frequency transients the resultant flaw signals are supplied to vertical deflection circuits of oscilloscopes 96, 96' and to circuits 98, 98' which may include threshold circuits actuating an alarm, marker or segregator whenever either the positive or negative portions exceed a predetermined value. The head may be fixed and include a number of probes arranged in a line along tube 31, Fig. 2 (not shown). Flat plates may be tested instead of tubes or rods.
Patent GB-599754-A (GB)
Title: An improvement in or relating to the driving of mule spindles
IPC: D01H3/06
Filed: 1945-09-22
Abstract: 599,754. Spindle driving arrangements for spinning-mules. CHARLESWORTH, H. Sept. 22, 1945, No. 24616. [Class 120 (ii)] The invention relates to the driving of groups of spinning-mule spindles by a band tensioned by an adjustable device. The tension arrangement comprises slotted brackets b, e extending rearwardly from the spindle rail a at each end of the group, the bracket b carrying an adjustable guide pulley d and bracket e carrying a fixed guide pulley k and an adjustable tension lever f with a pulley g attached to one end and a spring h fastened to the other. The spring h may be connected to the spindle rail a by an adjustable anchorage..Stops n<1>, n<2>, adjustable along the slot of the bracket e, are provided to limit the extent of swing of the lever f.
Patent GB-1328181-A (GB)
Title: Formamidine derivatives useful as insecticides and miticides
IPC: A01N37/52
Filed: 1971-04-19
Abstract: 1328181 Formamidine derivatives HOKKO CHEMICAL INDUSTRY CO Ltd 19 April 1971 [18 March 1970 11 Dec 1970 (2)] 24624/71 Heading C2C The invention comprises formamidines of formula in which n is 0, 1, 2 or 3; X is a halogen atom or an alkyl, haloalkyl, alkoxy, nitro or alkylcarbamoyloxy, group the X groups being the same or different; R 1  is a hydrogen atom or an alkyl, alkenyl, alkynyl, haloalkyl, alkylthioalkyl, alkoxyalkyl, haloalkoxyalkyl or haloalkyl-thioalkyl group; R 2  is alkyl, alkenyl, alkynyl, alkylthioalkyl, alkoxyalkyl or haloalkyl group; and Y represents an oxygen or sulphur atom; and acid addition salts thereof. They may be prepared by reacting an aniline compound of formula or an acid addition salt thereof with a formamide compound of formula and a condensation agent which is capable of reacting with water of condensation to liberate a hydrogen halide which forms an acid addition salt with the formamidine and, if necessary, converting the salt to the free base, and when desired converting the free base to another acid addition salt. Suitable condensation agents are, for example, phosphorus oxyhalides, phosphorus trihalides, phosphorus pentahalides, thionyl halides, phosgene, thiophosgene, oxalylchloride, alkyldichlorophosphines, hydroxyalkyl dichlorophosphonates and sulphuryl chloride. A large number of examples of the formamidines and their preparation are given. The formamidines of the invention may be used as active agents in insecticidal and miticidal compositions. The compositions may contain conventional supports and extenders and, if desired, other insecticides, fungicides, herbicides and plant growth regulators.
Patent GB-626067-A (GB)
Title: Improvements in or relating to kneading and mixing machines
IPC: B29C48/72
Filed: 1946-08-19
Abstract: 626,067. Mixing apparatus. LIST, H. Aug. 19, 1946, No. 24641. Convention date, Aug. 20, 1945. [Class 86] A continuously-operated kneader and mixer comprises a worm member 1 rotatable in a casing 2 which is reciprocable relatively to the worm member whereby a portion of the mass already mixed is returned into the less mixed mass. A cylindrical worm is provided with an interrupted thread and rotates within an axially-reciprocated cylindrical casing having a plurality of tooth-like projections 5 on its inner wall, the speed of rotation of the worm and of reciprocation of the projections 5 being such that the latter repeatedly pass through the gaps in the worm thread. The casing 2 may be given in addition, a slight rocking movement. The last couple of turns of the worm thread at the end adjacent the exit port 4 have no gaps. In a modification, Fig. 4, a conical press worm and casing both of cc ncave form are provided, the casing 2 being given an axially-reciprocating motion to increase the pressure difference between the turns of the worm thread, a portion of the mass to be kneaded thus being pushed back through the space between the worm and casing when the latter is moved to the left. The Specification as open to inspection under Sect. 91 described also a construction in which the fixed casing of a conical worm has by-pass channels through which material is forced back into the mass by the pressure of the worm. This subject-matter does not appear in the Specification as accepted.
Patent GB-626965-A (GB)
Title: Improvements relating to frequency standards of the tuning fork type
IPC: H03B5/30
Filed: 1946-08-19
Abstract: 626,965. Tuning-forks. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Aug. 19, 1946, No. 24664. Convention date, July 27, 1945. [Class 13] [Also in Groups XL (b) and XL (c)] The Specification as open to inspection under Sect. 91 comprises matter relating to the construction of an electrically maintained tuning fork. The tuning fork comprises members which may be bars 11, Fig. 8 (Cancelled), or discs, Fig. 9 (Cancelled, not shown), centrally connected by a spacing piece 13 by soldering, brazing, electric spot welding or other means, and supported within a vacuum container 15 by means which engage said spacing pieces, the complete assembly being mounted within a copper container 14. This subject-matter does not appear in the Specification as accepted.
Patent GB-519625-A (GB)
Title: Improvements in and relating to sound reproducing devices
IPC: H04R1/30
Filed: 1938-08-23
Abstract: 519,625. Loud-speakers. FOUNTAIN, Ltd., G. R., and HOULGATE, H. J. Aug. 23, 1938, No. 24722. [Class 40 (iv)] A moving - coil loud-speaker comprises a domed or conical diaphragm 1 rigid with a flat annular portion 17 and provided with a flexible surround 2, an actuating coil 5 attached to the rigid flat portion 17, a throat member 11 having a rear surface close to the diaphragm and similar in shape thereto, holes 12 being formed in the throat member substantially opposite the actuating coil and substantially at right angles to the flat portion 17, the said holes leading to the periphery of a transverse passage A to the centre 15 of which the horn proper is connected, the section of this passage at right angles to the direction of flow of the sound being either constant or increasing according to a substantially logarithmic law, and the arrangement being such that the sound waves pass from the diaphragm through the holes and radially inwards through the transverse passage and into the horn without restriction. As shown in Fig. 1, the transverse passage A lies between the throat member 11 and a coupling member 13 to which the horn is attached. An air-tight joint is made between the members 11, 13 by means of a rubber ring 14. As shown in Fig. 2, a central hole 16 may be formed in the throat member 11 and the wall of the member may be thickened in this central region ; this is stated to improve high frequency response. Specification 495,784 is referred to.
Patent GB-318383-A (GB)
Title: Improvements in racks for letter and like trays
IPC: B42F7/12
Filed: 1928-08-28
Abstract: 318,383. Abbott, S. S. Aug. 28, 1928. Rack stands.-A letter &c. trav rack consists of a base A having two vertical standards B upon which swing- ing trays D are mounted, each standard carrying alternate trays. The base may be provided with a sliding tray E.
Patent GB-1317347-A (GB)
Title: Angular code controlling device
IPC: H03M1/00
Filed: 1971-04-19
Abstract: 1317347 Fluid logic switching circuits MANUTAR SA 19 April 1971 [ 19 March 1970] 24790/71 Heading F1P [ Also in Divisions G3 and G4] A coding device for ascertaining the angular position of a rotatable shaft of a machine tool comprises a disc secured to the shaft having a plurality of radially and circumferentially spaced holes in which can be inserted interchangeable keys 12, Fig.3. Each key 12 has a number of holes signifying the control information to be transmitted at a particular angular position of the shaft. The presence of a hole permits the passage of a jet of fluid 33, from an orifice 28-32 in a pressurised container 26, to a fluid responsive device 34-38. A fluid responsive device, Fig.4, comprises an inlet 39 supplied with a pressurized fluid which, in the absence of a hole, flows out through an outlet 40. When the jet of fluid 33 passes through a hole, it enters the device through an opening 41 and impinges on the jet from inlet 39 to deflect it to an outlet 42 and provide a control signal.
Patent GB-849606-A (GB)
Title: Improvements in and relating to screw bushes
Inventor: HALL SYDNEY
IPC: F16B37/12
Filed: 1958-08-01
Abstract: 849,606. Anchor-nuts &c. HALL & KAY Ltd. June 26, 1959 [Aug. 1, 1958], No. 24797/58. Class 89(1). An anchor-nut comprises a body 10 shouldered adjacent one end to form a riveting-annulus 12, and slotted at the other end, the slots extending more than half, but not all-way, from said other end to the shoulder, which may have projections 11 or serrations to grip the face of a workpiece to which the nut is riveted. The body may be cylindrical or polygonal in cross-section, and may taper towards the slotted-end, which may be contracted before or after inserting the screw for locking same.
Patent GB-1001688-A (GB)
Title: Vulcanization of olefin copolymers
IPC: C08L23/16
Filed: 1963-06-21
Abstract: Vulcanizable compositions comprise an olefin-olefin copolymer and a minor proportion of a uniformly dispersed mixture of a polymer or copolymer of a conjugated diolefin having a vinyl group in the molecule with a polymer of divinyl benzene.  The said mixture may be obtained by dissolving the diolefin polymer or copolymer in monomeric divinyl benzene, with or without a hydrocarbon solvent, and polymerizing the solution obtained either thermally or by means of a free radical initiator.  The diolefin polymer may have 1,2- or 3,4-enchainment obtained by polymerizing with an alkali metal catalyst; the diolefin polymer may be polybutadiene, polyisoprene or butadiene-styrene copolymer.  Specified olefin-olefin copolymers are ethylene-propylene and ethylene-butene-1 copolymers.  The compositions may optionally contain plasticizers, antioxidants and other additives.  The compositions can be vulcanized by heating with organic peroxides, with or without sulphur.  The vulcanized products have good electrical insulating properties and are suitable for forming insulation sheaths for electric cables. Specifications 856,736 and 856,737 are referred to.
Patent GB-208228-A (GB)
Title: Improvements in or relating to electric lighting sets
IPC: B60R16/02
Filed: 1922-09-14
Abstract: 208,228. Railing, A. H., Garrard, C. C., and Wilson, W. Sept. 14, 1922. Switchboards; lighting and heating systems.- In electric lighting sets comprising an internalcombustion engine, dynamo and accumulator battery a " fool-proof " arrangement of interlocked push-button switches is provided for controlling the set. Switches 9, 10 switch the dynamo " off " and " on " respectively to a circuit through a two-way switch 16, the battery 8, fine wire winding 17 and fuse 4. Switch 15 is the starting switch, connecting the battery to the dynamo and causing the latter to run as a motor till the engine fires. The winding 17 belongs to a reverse current cut-out relay 6 of tha type described in Specification 176,978, and when the voltage of the dynamo exceeds that of the battery by a certain amount, a coil 19, connected across the battery, swings to the right and closes a circuit through the coil 20 connected across the dynamo, which in turn completes a circuit at 21 through the thick wire retaining coil 18. Switches 11, 12 determine whether the whole or only apart of the battery 8 shall supply current to the lamps. The switches 10, 11, 12 are interlocked by means described in Specification 126,197 so that no two adjacent buttons can be pushed home at the same time and so that the pushing in of any one button releases any other. Over voltage to the lamps during charging and short-circuiting of the end cells are thus prevented.
Patent GB-1100157-A (GB)
Title: Improvements relating to pulse radar systems
IPC: G01S7/292
Filed: 1965-06-11
Abstract: 1,100,157. Pulse radar. SOCIETE NOUVELLE D'ELECTRONIQUE ET DE LA RADIO-INDUSTRIE. 11 June, 1965 [16 June, 1964], No. 24889/65. Heading H4D. In an arrangement for deciding whether a pulse radar echo signal in a range-time quantum Q is in a clutter zone, the video echo train is amplitude-quantized in a binary manner, the ensuing " 1 " signals are quantized in duration and time-position, the signals thus quantized are stored, and the quantized " 1 " signals from n time quanta preceding quantum Q in a current pulse repetition period (p.r.p.) are utilized together with similar signals in n time quanta following quantum Q in the previous p.r.p. are utilized to make the decision. The signal in quantum Q itself may also be used. In a store 12 each ferrite toroid corresponds to a time quantum; writing-in and reading-out from the store are controlled by an addressing circuit 13 actuated by pulses. Read-out is as described in Specification 1,071,692 such as to feed into a shift register 16 the signals from the " previous " p.r.p. Another shift register 17 is fed directly from the duration and time-position quantizer 10. Parallel read-out from the shift registers enables a logic unit 18 to totalize the " 1 " data in 2n time quanta and this total is compared with a predetermined threshold; if exceeded, and if the further criterion that there is a " 1 " signal in one of the two time quanta adjacent to quantum. Q is met, the input video signal is blocked from the utilization circuit or the latter is fed from a logarithmic receiver. The P.P.I. may be marked to indicate the clutter zones, Fig. 2 (not shown), and the logic unit decision may be cancelled manually over selectable zones. A decision may be taken as regards azimuth: the clutter zone positions found during an aerial revolution are stored and the clutter sector positions are maintained even if during the next aerial revolution a clutter decision does not arise in a p.r.p. in a particular direction. The invention is stated to be particularly useful when echo amplitude may vary from one p.r.p. to the next as in a radar utilizing random carrier frequencies.
Patent GB-518427-A (GB)
Title: Improvements in or relating to the construction of ladders and the like
IPC: E06C1/38
Filed: 1938-08-25
Abstract: 518,427. Ladders. McCONNEL, Ltd., F. W., and McCONNEL, F.'W. Aug. 25, 1938, No. 25009. [Class 20 (ii)] A single upright ladder comprises a hollow central upright with tubular cross members welded thereto and which project on opposite sides and form the rungs. The central member is formed of opposed flanged angle-shaped strips of metal 12; 13 welded together at the flanges and provided with pressed-out shaped apertures 17 either at the flanged or angled portions to receive the tubular cross members 11, which project on either side of the central member and constitute rungs. The ends of the rungs are interconnected by light metal members such as wire 21 or channel-bars 20. The lower cross member 28 is longer than the remainder and is formed with downwardly turned divergent portions 25 which lie alongside, and are welded to similar portions of the next lowest rung 29 to form a base for the ladder, and the upper end is provided with an arm 23 terminating in a pad 24 to rest against a vertical wall. In a modification, the ends of the lowest cross member are welded to divergent strut members secured to the central member at their upper ends and stiffened by short vertical rods disposed between them and the ends of the next lowest rung.
Patent GB-292001-A (GB)
Title: Improvements relating to electric regulating devices
IPC: H02P9/26
Filed: 1927-02-11
Abstract: 292,001. British Thomson-Houston Co., Ltd., and Parry, R. D. Feb. 11, 1927. Divided on and addition to 278,060. Regulating, automatic. - Thermionic devices 17, 18 connected to a system 11 through a transformer 21 pass anode current in dependence upon the voltage of the system. Increase of voltage causes an increased anode current and therefore a longer potential drop across the anode resistance 26; this causes the grids of the thermionic devices 30, 31 to become more negative. Their anode current is therefore reduced, and as the anode circuit is in parallel to a resister 15, the field current of an exciter 13 is reduced, and thus the field current of the alternator 10 is reduced. The cathodes of the devices 30, 31 are supplied through constant current resisters 34 from the exciter. In various modifications one or more of the following features are incorporated. The cathodes of the devices 30, 31 are supplied by the anode current of the devices 17, 18, or from the transformer 21 through rectifiers, or in parallel to a " shunt " in the output of the exciter, which in this case is a constant current machine. The devices 17, 18 may have grids energized from tappings on the transformer 21. The devices 17, 18 may be duplicated, the second set being connected across another phase of the system 11. The anode circuit may supply a separate excitation to the exciter and be connected to a mid point of the transformer 22. Specification 232,641 is referred to.
Patent GB-744649-A (GB)
Title: Means for the fractional separation of mixed granular materials
IPC: B03B5/24
Filed: 1953-09-10
Abstract: 744,649. Separating solid materials. PHILLIPS, C. H. J. V. Aug. 27, 1954 [Sept. 10, 1953], No. 25053/53. Class 117. Material is fed into one end of a shallow, horizontal or slightly inclined and longitudinally-reciprocated trough which is provided with means which obstruct the flow of the upper layer to promote separation of the denser component which passes into the lower layer of material, the upper layer being delivered over the side walls, and the lower layer being delivered at the end of the trough. In one embodiment the trough a, Figs. 2, 3, fed from the hopper b, is supported for vibration on links d. The walls g of the trough may decrease in height from the feed end and are so placed that the trough width also decreases. The base may be of a flat-V or dish-shaped cross section. Supported from angle plates i at opposite sides of the trough are a number of Y-shaped members h providing passages j for the upper layer of material to pass out sideways over the walls g to collect in ducts k and travel to outlets m. The lower layer moves forward acquiring an increased concentration of the denser components and discharges through outlet o. In a second embodiment, a series of scoops are supported above the trough on fixed cross members s, Fig. 4, the bases q of which incline upwards and the sides r of which converge in the direction of travel of the material. A gap between the rear edge of the base q and the support s allows material arriving at the top to pass back into the trough a. The trough walls g are recessed at t where the leading edge of each scoop dips therein. The obstructing members may be fixed or may reciprocate with the trough.
Patent GB-161609-A (GB)
Title: Improvements in detachable vehicle wheels
IPC: B60B3/18
Filed: 1919-10-14
Abstract: 161,609. Penrose, R. A. Oct. 14, 1919. Detaching from, and attachinq to, permanent hubs.-A detachable hub of the type described in Specification 121,614, which is secured by a ring b having a bayonet-joint connection with the outer end of the permanent hub a, is formed adjacent its inner end with recesses a' engaging radial driving-lugs a<3> on the permanent hub a.
Patent GB-747548-A (GB)
Title: Improvements in or relating to a method of producing a picker for under-pick looms
IPC: D03D49/36
Filed: 1954-08-31
Abstract: 747,548. Loom pickers. STAUB & CO., AKT.-GES. Aug. 31, 1954 [Dec. 23, 1953], No. 25208/54. Class 142 (2). In a picker made from two blanks of raw hide assembled together, tne shuttle-striking portion is formed by flaps 4c, 4d on one blank folded as shown in Fig. 6 to lie between the main panels 4a, 4b; the other blank, Fig. 7, has its main panels 5a, 5b in contact and the flaps 5c, 5d folded round them, and is inserted into the pocket 10 of the first blank.