baber/WOPTO huggingface dataset:
Patent GB-1320220-A (GB)
Title: Capsule insert for a telephone handset
IPC: H04M1/62
Filed: 1970-09-23
Abstract: 1320220 Capacitor microphones AKG AKUSTISCHE U KINO-GERATE GmbH 23 Sept 1970 [25 Sept 1969] 45219/70 Heading H4J  A transmitter for a telephone handset includes a capacitor microphone and a transistor amplifier connected together and housed in a casing. The capacitor microphone comprises a fixed electrode 4 in the form of a disc of sintered material which is partially contacted by plastics diaphragm 5 which has a vapour deposited gold coating. Transistor amplifier 6 is connected to the microphone through resilient conductive ring 7 and its output is taken to terminal 10 in casing 1. The diaphragm is supported around its circumference on electrode 4 by heat resistant wax and is secured by contact with depression 8 in cap 2 which is secured in an insulated manner to body 1 by flange 13. The amount of contact of the diaphragm with the electrode is determined by the grain size of the material before sintering. The capacitance of the microphone is between 400-1000 pF.
Patent GB-1528809-A (GB)
Title: Cleaning of electrostatographic imaging members
IPC: G03G21/00
Filed: 1975-10-31
Abstract: 1528809 Cleaning electrophotographic surfaces XEROX CORP 31 Oct 1975 45374/75 Heading B6C Liquid developer residues are removed from electrophotographic member 10a by application of a cleaning liquid 17 miscible with the developer by wick 19a and its subsequent removal, together with the residues, by cleaning means 21b. The cleaning means 21b may be a blade, and a second blade 21a may act on the member 10a before application of the liquid 17. Preferably the wick is pivot-mounted, and is moved intermittently into and out of contact with the member 10a by cam 23. The liquid 17 may include a Lewis acid or Lewis base, either dispersed or dissolved in it. Suitable Lewis acids and bases are listed.
Patent GB-1016263-A (GB)
Title: Formwork for casting concrete floors
Inventor: BOWDEN GEORGE FRANCIS
IPC: E04G11/48
Filed: 1962-11-30
Abstract: 1,016,263. Shuttering for casting floors; shores. SYMONS Mfg. CO. Nov. 30, 1962, No. 45402/62. Headings E1E and E1S. Shuttering for casting floors comprises panels 16 supported flush with the upper surface of beams 14 by vertically movable angle iron rails 24 on the beams which are supported on brackets 30 on the top of vertically adjustable shores 12. The rails 24 are mounted on the beams by curved slots 246, Fig. 19, so that theymay be lowered to release the panel 16 and leave the concrete supported by the beams. The brackets 30 support the beams by channels 122, Fig. 8, on which they are secured by studs 35 the beams being of I-section the webs of which are engaged between angles 134. The top section 56, Fig. 4, of each shore 12 is vertically adjustable by means of a screw 84 screwing in a nut 86 on top of the next lower section 54, and to adjust is turned by holes 108 or the square end 110 of the screw 84. The shore is composed of several sections spigoted together and is filled with reinforcing material 102. The rails 24 are secured in position by pins and lowered by a lever, Fig. 15 (not shown) engaging a hole 262, Fig. 19, in the beam and an abutment 264 on the rail. The beams may be longitudinally adjustable by means of end sections 224 of I-section which are slidable between two channels 216 back to back which make up the middle section and which are secured together by a short I-beam 204. The parts are clamped in adjusted position by bolts 234 engaging slots 230 in the end sections. Brackets 250 mounted by means of angle slots 254 support the panels 16 on the end sections. The ends of the panels 16 normally rest on the rails 24 but the sides may rest on these rails and the ends on wooden members 42, Figs. 1, 36, supported by brackets 300 on the lower flanges of the beams, one edge of a flange engaging in slots 310 and being secured by locking plates 320 engaging the other edge of the beam, the locking plate being secured by a nail through holes 332, 330. Adjustable members 42 are described in Figs. 43-45 (not shown).
Patent GB-1142216-A (GB)
Title: Installation for the automatic filling and cleaning of a main hydraulic circuit
IPC: F15B21/044
Filed: 1966-10-11
Abstract: 1,142,216. Hydraulic systems. STAMICARBON N.V. Oct. 11, 1966 [Oct. 12, 1965], No.45436/66. Heading F1P. In an hydraulic circuit in which a main pump 1 supplies hydraulic fluid to an increasingly remote hydraulic motor 5 through a pipeline 4 capable of being extended by adding sections 4', 4"...., the circuit is arranged to be filled and/or flushed by a feed pump 11 drawing from a reservoir 10 and supplying the circuit through a line 13, connected to the inlet of the main pump and to a line 16,16<SP>1</SP> by-passing the pump, whereby fluid fed by the pump enters the circuit by way of the by-pass line 16, 16<SP>1</SP>. Fluid enters the circuit through the by-pass line since the resistance to flow therethrough is less than through the main pump 1. During flushing and/or filling a cut-off valve 15 is also opened to allow the fluid to by-pass the motor 5. After leaving the motor 5 hydraulic fluid passes through pipe sections 6, 6<SP>1</SP>...., a filter 7 and a release valve 9 to the reservoir 10. In operation of the circuit both pump are opened and all or some (10% say) of the fluid reaching the valve 9 returns to the reservoir 10, the remainder, if any, being re-circulated. Stop valves 20, 20<SP>1</SP> for isolating the main pump during servicing are provided.
Patent GB-1534158-A (GB)
Title: Dust filter unit and a method of cleaning a dust filter unit
IPC: B01D46/04
Filed: 1975-10-31
Abstract: 1534158 Cleaning dust filters ATLAS COPCO AB 31 Oct 1975 [8 Nov 1974] 45501/75 Heading BIT A method of cleaning a dust filter unit of the kind that comprises a plurality of flexible filter bags that are open to the clean air side and mounted on cages that prevent the bags collapsing, comprises terminating the inlet flow of dirty gas and then cleaning all the bags simultaneously by injecting repetitively pulsed air jets into the bags, the jet axes being parallel to the side walls of the bags and the jets being directed towards the bottom of the bags so that a part of the length of the jets does not touch the bags. The bags may be relatively thin (length more than 10 times their width), flat bags. The air jets may issue from expansion nozzles, e.g. Laval-type nozzles connected to a self-oscillating membrane pulse valve or an electrically-controlled pulse valve. The method may be applied to the filtration of dust-laden air from a rock drilling bore hole using polyester textile filter bags.
Patent GB-1082108-A (GB)
Title: Jig for assembling a plurality of electron guns to form an electron gun mount
IPC: H01J9/18
Filed: 1965-10-27
Abstract: 1,082,108. Manufacturing cathode-ray tubes. SYLVANIA ELECTRIC PRODUCTS Inc. Oct. 27, 1965 [Oct. 27, 1964], No. 45547/65. Heading H1D. An assembly jig for assembling and mechanically converging a plurality of electron guns, to provide an electron gun mount for a shadowmask colour cathode-ray tube, comprises a base 30, a plurality of electron-gun holding cartridges 26 adapted to be fitted on the base in a convergent array, and a top cap 20 adapted to be fitted to the other ends of the cartridges to maintain the required convergence of the cartridges and guns. As shown, each cartridge comprises end blocks 50, 52 having parallel facing surfaces which are perpendicular to the required gun axis and at a small angle to the facing surfaces of base 30 and top cap. The blocks 50, 52 are mounted on a rod 58, block 50 being fixed and block 52 being movable axially upwards and then rotatable through 180 degrees when screw 53 is released. In the latter position, gun electrodes are mounted on a mandrel 60, 64, Fig. 5 (not shown), secured to block 50 with spacers 70, 72, 74 therebetween, and a cathode-grid assembly is mounted on a mandrel 62 secured to block 52, which is then moved back to the position shown. After assembly of each gun in its associated cartridge, the cartridges are mounted on pins 34 provided on each of three equi-spaced legs forming base 30. Top cap 20 is then placed in position and straps 16, Fig. 2 (not shown), provided on each gun electrode are sealed to glass beads 18 after which the electrode spacers are moved out of contact with the electrodes and the jig is dis. assembled.
Patent GB-1173269-A (GB)
Title: Method of Duplicating Magnetic Tapes
IPC: G11B5/86
Filed: 1968-09-26
Abstract: 1,173,269. Copying magnetic record tapes. TELEFUNKEN PATENTVERWERTUNGSG.m.b.H. 26 Sept., 1968 [29 Sept., 1967], No. 45747/68. Heading G5R. A master tape in which information is stored in the form of variation in the cross-sectional area of at least one strand of magnetizable material is brought into contact with an unrecorded tape and both tapes are exposed jointly to a steady magnetic field with a highfrequency alternating field superimposed thereon. The field acts perpendicularly to the contacting surfaces of the tapes. The master recording is produced initially as a mechanical hill-and-dale recording in the non-magnetic tape, the groove then being filled or coated with magnetic material. The cutting stylus has a flank angle greater than 90 degrees so that the groove is shallow and forms a variable area recording at the surface of the tape.
Patent GB-1138684-A (GB)
Title: Improvements in or relating to temperature-responsive fluid control valves
Inventor: BARTLETT LESLIE ROBERT
IPC: F16K17/38
Filed: 1965-11-02
Abstract: 1,138,684. Fluid pressure control valves &c. SPIRAX-SARCO Ltd. 8 Sept., 1966 [2 Nov., 1965], No. 46419/65. Heading F2V. A temperature-responsive fluid control valve comprises an inlet chamber 2, and separated from it by a wall 4, an outlet chamber 3, the wall having formed thereon a valve seat member 5 with a bore 6 extending through it. A closure member 20, having a sealing ring 21 and arranged to be axially displaceable within the bore, is, at its upper end, connected to the lower end 11 of a cylindrical chamber 12, the chamber housing between itself and a bellows 18 disposed within it, a thermostatic medium 17. As shown, one end of the bellows is connected to the upper end 10 of the chamber 12, and the other to a cap 16 fixed to the lower end of a rod 13, the rod being slidably mounted in the chamber end 10. The position of the rod determines the temperature at which the valve closes, and this may be adjusted by suitably turning member 15. In operation, fluid entering the outlet chamber 3 heats the thermostatic medium so causing it to expand. The increase in volume is accommodated by the chamber 12 moving bodily downwards, i.e. by the bellows contracting, and in doing so causing the closure member 20 to enter the bore 6 and the sealing ring to engage the upper rim of the bore 6 so closing the valve. Any further increase in temperature results in the closure member being moved further into the valve seat bore 6, such further movement being accompanied by a compression of the sealing ring 21. In an alternative arrangement, the closure member 20 may be fixed, the chamber 12 arranged to act upon the seat member 5, and the direction of flow reversed, the operation of the valve being similar to that described above. In a modification, the seal between the closure member 20 and bore 6 may be effected by forming the wall 4 with a resilient seat insert (60, Fig. 4, not shown), which insert carries an inwardly directed flange engageable by a metallic closure member (62), or alternatively, the closure member is formed of metal and carries at its free end a resilient portion (51, Fig. 3, not shown), having an outwardlyextending flange engageable with the bore of a hard seat (53). In a further modification (Fig. 2, not shown), the valve closure member carries a further valve member (37), the arrangement being such that the valve may be dismantled without stopping flow from the inlet to the outlet chamber.
Patent GB-1310845-A (GB)
Title: Apparatus for extricating ceramic castings from multiple-piece moulds
IPC: B28B1/26
Filed: 1970-09-18
Abstract: 1310845 Slip casting MANSFIELD SANITARY Inc 18 Sept 1970 [13 Oct 1969] 47803/72 Divided out of 1310844 Heading B5A The subject matter of this Specification is identical with that described in Specification 1,310,844 but the claims are concerned with the mould gripping apparatus for picking up the mould.
Patent GB-1478990-A (GB)
Title: Anchoring system and method
IPC: B63B21/22
Filed: 1974-11-05
Abstract: 1478990 Anchoring system SKAGIT CORP 5 Nov 1974 [28 Nov 1973] 47814/74 Heading B7S  An anchoring system comprises a length of anchor chain 60 attached to anchor 24, a wire rope 40 connected to the anchor chain and hoisting equipment including winch 38, chain hoist 42 and fairlead sheave 62. The anchor chain is connected to the rope by a connector 54 having a portion 54b in which one end of the rope is secured and a convex portion 54a in which a link 56 of the chain is received. The fairlead sheave has an inner groove 66 for the rope, an intermediate groove 68 for the anchor chain and an outer groove 70 having an inner surface which mates with the convex portion of the connector.
Patent GB-1358655-A (GB)
Title: Conveyor system for conveying sheets
IPC: B65H29/20
Filed: 1972-10-20
Abstract: 1358655 Cutting, collating and stacking sheets M D MARTIN 20 Oct 1972 [28 July 1972] 48370/72 Heading B8R Sheets discharged from a corrugator 2, Fig. 1, are cut into a plurality of narrow sheets 3 and conveyed in rows between upper and lower bands of a conveyer 4 on to a side take-off conveyer 6 comprising rollers 12 rotating so as to convey the sheets are right-angles to the discharge direction, and at such a speed that the leftmost sheet 3 in a row is deposited on the conveyer 6 and moved into position to receive the second leftmost sheet of the next row at the time that sheet is deposited, so that piles of sheets are formed on the conveyer 6, the number of sheets in each pile being the same as the number of sheets in each row. The piles are then carried to an accelerator conveyer 7 comprising friction rollers 22 rotating more rapidly than the rollers 12 so as to space the piles from each other, to a transfer conveyer 8 travelling more slowly than the accelerator, and to a stacker conveyer 9 travelling faster than the conveyer 8 so as to shingle the sheets in each pile. The speed of the conveyer 6 is synchronized with the discharge velocity of the corrugator by a tachometer control 112, wherein delay means comprising a condenser is connected between the tachometer generator and a variable electric motor 13 driving the conveyer 6, so that when the speed of the corrugator alters, the speed of the conveyer 6 is not altered until all sheets discharged at the first speed have been collated. If the conveyer 6 is driven by a fluid motor, the tachometer generator controls an electric motor driving a variable volume pump for the fluid motor, and the delay means comprises a pressure accumulator in a by-pass between the pump and the fluid motor. Sheets discharged on to the conveyer 6 are aligned against a plurality of bullet-shaped back-stops 61, Figs. 1, 5 and 6, adjustable towards and away from the conveyer 4 by a motor 51 and chain 47 according to sheet size. In the event of the sheets being too long for the rollers 12, the assembly of stops 61 is swung upwards out of the feed path about a pivot 74. A converter mechanism, comprising channels 81, Fig. 11, supporting vertical cross plates 83 carrying a plurality of guide wheels 84 between each pair of rollers 12, is raised on a parallel linkage 87 by an actuating lever 91 so that the wheels 84 project above the rollers 12, and the conveyer 6 now allows the sheets to be discharged therefrom in the same direction as the feed of the conveyer 4. Sheets carried by the conveyer 9, Figs 1 and 15, are stacked against back-stops 92, 93, which are adjustable according to sheet width along a shaft 97 by threaded engagement therewith, the shaft being rotated by a handle 104 or a motor 107. The conveyers 6, 7, 8, 9 are driven by separate variable-speed motors linked to produce a constant proportional speed. Sheet piles on the conveyers 7, 8 are held down by guide rollers 34, 39.
Patent GB-1586798-A (GB)
Title: Preparation of optionally substituted phenyl- and naphthyl-alkanoic acids
IPC: C07C59/68
Filed: 1977-11-23
Abstract: Phenylalkylcarboxylic acids of the formula (I) are prepared by oxidising alkene derivatives of the formula (II). The substituents R<1> to R<8> are defined in Claim 1. Examples of oxidising agents which can be used are potassium permanganate or chromium trioxide in acid medium or ozone-saturated oxygen. Ozonides formed as intermediates are decomposed with hydrogen peroxide. Phenylcarboxylic acids of the formula (I) can be used as pharmaceuticals by reason of their excellent anti-inflammatory properties. <IMAGE>
Patent GB-1023274-A (GB)
Title: Improvements in or relating to measuring instruments
Inventor: BELL ERIC BRAYTON
IPC: G01N3/58
Filed: 1963-12-12
Abstract: 1,023,274. Examining and measuring components. SAUNDERS ROE & NUCLEAR ENTERPRISES Ltd. Nov. 17, 1964 [Dec. 12, 1963], No. 49051/63. Heading G1A. In an instrument for the examination for thickness of components a collimated beam of particle radiation is passed through the component and detected, the resultant signal being analysed by an energy resolution device. The energy of radiation such as α particles, is reduced in proportion to the thickness of the component that it has passed through. This relation is used in the examination of razor blades e.g. in sharpness measurement. In the described embodiment, a radioactive source of α particles 6 (Fig. 2, not shown), in the form of PO 210 electrodeposited on to the head 7 of a platinum pin 9, is mounted in a holder 8, having at the end, brass plates 10, 11 separated by aluminium shims 13, 14 and defining a slit of about 1 Á x 1 mm. The detector is a silicon surface barrier detector and is connected to a circuit (Fig. 4, not shown) comprising pre- and main amplifiers 20, 21, a pulse amplitude analyser 22 which can be adjusted to pass only those pulses in a pre-selected energy band, and a scaler 23, to count and display the count digitally. The razor blade 2 (Fig. 1) is mounted on a holder 3 which can be moved on a wedge 4 to various positions with respect to the radiation beam, by a micrometer screw 5. Movement may be continuous or interrupted, using motor drive or hand operation. That part of the beam which reaches the detector directly i.e. which does not pass through the edge of the blade, results in high energy signals, which are suppressed by the analyser 22 if the latter is set to pass pulses of the lower energy ranges corresponding to α particles passing through the blade. Counts are taken for predetermined times over a series of energy bands with the razor blade at different positions and a profile of the edge of the blade may be obtained in graph form, if desired. Thus with a sharp edge, a slow change in energy reduction is obtained, whereas a blunt blade gives a sudden pronounced value. The analyser may be set to pass one predetermined energy band corresponding to that for radiation passing through the critical region affected by sharpness. Counts are received which then show if blades, passed through the instrument sequentially, are below a predetermined sharpness standard. This enables various applications of the instrument for use in a production line. Other applications are the determination of thickness variations, pin- and blow-hole detection &c. Variable collimation enables average thickness measurements and variation of the instrument's sensitivity. A # emitting source maybe used, the detec - tors then being an ionisation chamber or scintillation counter.
Patent GB-1242410-A (GB)
Title: Method of crystallizing a binary semiconductor compound
IPC: C30B19/10
Filed: 1968-10-17
Abstract: 1,242,410. Crystallizing arsenides and phosphides. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 17 Oct., 1968 [20 Oct., 1967 (2); 29 Dec., 1967 (2)], No. 49228/68. Heading C1A. [Also in Division B1] A semi-conductor compound AB is crystallized from a solution containing; as solvent, the element A or B and, as non-doping additive, an element of the same group as the solvent element but of higher atomic number. The compound may be GaAs, GaP or InAs. The solvent may be Ga or As. The additive may be In, La or Ta. A solution of GaAs in Ga may contain 3-20% of GaAs and 1-5% of In (based on Ga). It may also contain Si, Te or Zn as dopant. The solution may be cooled from a temperature 20-50‹ C. above the saturation point at 0À1-50‹ C./min. Unidirectional crystallization on a seed (see Division B1) may be effected.
Patent GB-1108516-A (GB)
Title: Navigation lights for aircraft
IPC: H05B41/34
Filed: 1965-11-19
Abstract: 1,108,516. Signalling systems. J. RUSSELL. 30 Dec., 1966 [19 Nov., 1965], No. 49366/65. Heading G4F. [Also in Divisions F4 and H2] A circuit for flashing a pair of gas discharge tubes 12 mounted in a fin on the surface of an aircraft consists of an inverter including transistors TR1, TR2 and a transformer T1 whose output is rectified by diodes D1, D2 to provide power for the tubes and an oscillator circuit including transistors TR3, TR4, each driving a trigger circuit including a transformer T2 or T3, a capacitor C1 or C2 and a rectifier CR1 or CR2, the output of each of which produces pulses which are fed to the ionizing strips of the tubes 12.
Patent GB-1364480-A (GB)
Title: Transmission system
IPC: H04B17/40
Filed: 1971-10-26
Abstract: 1364480 Testing unattended repeaters SOC ITALIANA TELECOMUNICAZIONI SIEMENS SpA 26 Oct 1971 [26 March 1971] 49770/71 Addition to 1364264 Heading H4L In a PCM transmission system testing arrangement as claimed in the parent Specification 1,364,264, the two repeaters associated with opposite transmissions in any one line at a selected repeater station are individually selected and tested. This is done by sending on the service line in addition to the station identifying and interrogating signals (see parent Specification), a pulse (a 1 , Fig. 5, not shown) to reset all the processing units of the stations, followed by a line selecting pulse train (a 2 ,...), there being a discriminator at each station responsive thereto to control two gates, respectively receiving signals from the two repeaters representing correct or incorrect operation thereof. To generate the reset pulse and line selecting pulse train, the transceiver (T1/R1) of the interrogation and reply-analysis unit (Fig. 3, not shown) receives, in addition to the station interrogation pattern (from O1) the outputs of two hand-operated monostables (MR, MS) one of which (MR) generates a pulse of duration 10 Ál for resetting, and the other (MS) a selected number of pulses of duration 5 Ál, where Ál is the spacing between one station interrrogation pattern and the next. The processor unit at the selected station includes a counter (CS, Fig. 4, not shown) reset by the 10 Ál, pulse through an integrator (IS2), and arranged to count the (5 Ál) pulses passed by another integrator (IS1), the integrator time constants being selected to separate the different duration pulses. A decoder (DS) is controlled by the counter (CS) and each output thereof (I ... K) is fed to two gates (E* 1 , E** 1 ; etc.). Only one gate of each pair is enabled by a decoder (DC1) for one direction of transmission, and only the other by another decoder (DC2) for the other direction of transmission. The third input to each gate is the signal (#<SP>1</SP>) representing the functioning condition of the associated repeater. The output of each gate, as in the parent Specification 1,364,264, operates a monostable (M1) to generate a pulse if its repeater is correctly functioning.