baber/WOPTO huggingface dataset:
Patent GB-1205423-A (GB)
Title: Dyeable compositions
IPC: C08L23/02
Filed: 1967-11-28
Abstract: 1,205,423. Polymer compositions. UNIROYAL Inc. 28 Nov., 1967 [6 Dec., 1966; 1 Nov., 1967], No. 53980/67. Heading C3P. Dye receptive fibre-forming compositions comprise (A) 90 to 97 weight per cent of a polyalkene-1; (B) 0.5 to 5 weight per cent of a thermoplastic nitrogen-containing polymer having a basic ionization constant greater than 1 x 10-<SP>14</SP> and which is (a) an intralinear waterinsoluble condensation polyamide or (b) a water-insoluble polymer containing aliphatic, aromatic or heterocyclic amino groups; and (c) 0.5 to 5 weight per cent of an hydrophilic ethylene oxide polymer of molecular weight 300 to 1500 or 100,000 to 7,000,000, a degree of polymerization of at least 4 and an ethylene oxide content of at least 60 weight per cent, which is an ethylene oxide homopolymer or ether or ester thereof or an ethylene oxide/ alkylene oxide copolymer; the total weight of B + C being at least 3 per cent of the composition. (A) may be a polymer or copolymer of ethylene, propylene, 3 - methylbutene - 1 or 4 - methylpentene - 1. (B) may be a polymer or copolymer of an alkenyl pyridine, alkenyl alkyl pyridine or vinyl quinoline; a polyamide, e.g. polyhexamethylene adipamide, polyhexamethylene sebacamide, polypyrrolidinone, polycaprolactam, polyenantholactam or polyhexamethylene adipamide/sebacamide; or a reaction product of 3 - dimethylaminopropylamine and a styrene/maleic anhydride copolymer or of N-methyl bis (aminopropyl)amine with tolylene diisocyanate. The ethylene oxide polymer may be a polyethylene oxide, random or block ethylene oxide/propylene oxide copolymer, or polyethylene glycol ether or ester, e.g. of alkyl phenols, fatty acids and partial esters of fatty acids and hexitol anhydrides. The compositions may be melt spun into dyeable fibres. Many suitable materials are listed and examples describe compositions comprising polypropylene, poly - 2 - vinylpyridine and (1, 2, 10, 15, 17, 18 and 19) polyethylene glycol, (12) polyethylene glycol monomethyl ether, (13) polyethyleneglycol octylphenyl ether and (14) polyethylene glycol distearate, polyethylene glycol monostearate, polyethylene glycol sorbitan monostearate or polyethylene glycol sorbitan monolaurate; polypropylene, polyethylene glycol and (3 and 5) 2 - vinylpyridine/2 - methyl - 5 - vinylpyridine copolymers, (4) polycaprolactam, polyhexamethylene adipamide or a hexamethylene adipamide/hexamethylene sebacamide/caprolactam copolymer and (8 and 9) styrene/ dimethylaminopropyl maleimide copolymers; and poly - 2 - vinylpyridine, polyethylene glycol and (6) polyethylene and (7) poly-4-methylpentene-1.
Patent GB-1185867-A (GB)
Title: Improvements in Folding Wheel-Chairs
Inventor: PRITCHARD DENNIS HENRY
IPC: A61G5/08
Filed: 1967-12-05
Abstract: 1,185,867. Collapsible wheelchairs. VESSA Ltd. 5 March, 1969 [5 Dec., 1967], No.55200/67. Heading B7B. The rigid wheel carrying side frames of a wheel chair are interconnected by cross-braces the upper members 3 and 5 of which engage telescopically with the lower members 4 and 6. An elongated ratchet in each lower member is engaged by a pawl in the upper members and to collapse the chair handles on the side frame members 2 are depressed to release the pawls and allow the sections to telescope as the side frames are brought together.
Patent GB-1448249-A (GB)
Title: Electrical pulse generators particularly for ignition systems for gas turbine engines
IPC: F02C7/266
Filed: 1973-11-28
Abstract: 1448249 Ignition systems BENDIX CORP 28 Nov 1973 [29 Nov 19721 55232/73 Addition to 1414920 Heading F1B [Also in Division H3] The first semi-conductor means of an electrical pulse generator according to Specification 1414920 comprises two parallel connected transistors 20, 50 having current transfer ratios which differ by not more than ten. Preferably the current transfer ratios are in the range from 40 to 50 as shown, the electrical pulse generator forms part of a battery powered ignition circuit for jet or gas turbine engines.
Patent GB-1173808-A (GB)
Title: Paddling Pools
Inventor: SALMONS PETER ALAN
IPC: E04H4/00
Filed: 1967-12-05
Abstract: 1,173,808. Collapsible paddling pools. R. F. DEVELOPMENT CO. Ltd. 7 Nov., 1968 [5 Dec., 1967], No. 55286/67. Addition to 1,050,758. Heading A4N. A collapsible paddling pool comprises a flexible base 1, a semi-rigid side wall 2, and an inflatable and deflatable rim 6. The base consists of flexible material, such as polyvinyl chloride, the side walls comprising a plurality of rigid panels 3, 4 sandwiched between two layers of the flexible material (5), Fig. 3, (not shown) similar to the base material and coupled laterally by the material via lines of heat sealing, so as to permit relative movement of adjacent panels in the erected condition. The rim 6 protrudes vertically from the upper edge of the side wall 2 and is formed from an initially flat, elongated sheet of plastics material having its longer edges overlapped and heat sealed to the upper periphery of the side walls.
Patent GB-1362044-A (GB)
Title: Manufacture of insoluble and only slightly swellable poly-n-vinyl- pyrrolidone-2
IPC: C08F126/10
Filed: 1971-12-02
Abstract: 1362044 Poly-N-vinyl pyrrolidone-2 BADISCHE ANILIN- & SODA-FABRIK AG 2 Dec 1971 [3 Dec 1970] 55929/71 Heading C3P] [Also in Division C6] An insoluble and only slightly swellable poly- N-vinyl pyrrolidone-2 is prepared by polymerizing N-vinyl pyrrolidone-2 in aqueous solution in the presence of 0À5 to 10% by weight, based on the N-vinyl pyrrolidone, of a cyclic acid amide containing at least two ethylenically unsaturated groups, one of which is attached to an amide nitrogen atom which forms part of a heterocyclic ring, the polymerization being started at the surface of a metal which is susceptible to attack by oxygen and which is capable of forming a permeable oxide film or by seeds of poly-N-vinyl pyrrolidone-2 formed at the surface of said metal. The metal may be Fe, an Fe alloy, Co, Zn or Sn and may be the reactor. The amide may be N,N<SP>1</SP>- divinylimidazolidone - 2, N,N<SP>1</SP> - divinylhexahydropyrimidinone-2 or N-vinyl-3-ethylidinepyrrolidone-2. In the examples, N-vinylpyrrolidone-2 is polymerized in the presence of N,N<SP>1</SP> - divinylimidazolidone - 2, dibenzoyl peroxide and iron or zinc or seeds are produced by polymerizing N-vinylpyrrolidone-2 in the presence of N,N<SP>1</SP>-divinyl imidazolidone-2 or N,N<SP>1</SP>- divinylhexahydropyrimidone-2 dibenzoyl peroxide and iron and the seeds are used to polymerize N-vinyl pyrrolidone-2 in the presence of N,N<SP>1</SP>-divinyl imidazolidone-2 or N,N<SP>1</SP>-divinylhexahydropyrimidone-2.
Patent GB-1245296-A (GB)
Title: Improved clasp for bracelets or the like
IPC: A44C11/02
Filed: 1968-11-26
Abstract: 1,245,296. Fasteners. "GAY FRERES" S.A.R.L. 26 Nov., 1968 [28 Nov., 1967; 12 Nov., 1968], No. 56078/68. Heading E2A. A clasp for a bracelet or the like comprises a cover member 1 having two pins 6, 6' each extending into a slot 7, 7' in a slide 2 having a hook 3, 3' at each end respectively and slidable in the cover member against spring pressure from a central hook closing position to one or other hook opening position; The cover member is channel shaped or rectangular in cross section. The central part of the blade spring 9 is bent to engage releasably a pin 11 secured to the slide, or the spring slides over the pin and restores the hooks to closed position. In other embodiments one end of the spring has a pin engaging recess or projection and the other end is curved or has a larger projection either to restore a hook to closed position or to vary the force needed to open and close a hook. Two helical springs may be provided one end abutting a pin 6, 6' and the other end abutting a pin secured to the slide and cover member respectively.
Patent GB-1254080-A (GB)
Title: Improvements in or relating to microwave oscillators
IPC: H03B7/14
Filed: 1969-11-19
Abstract: 1,254,080. Semi-conductor oscillator; frequency modulation. MATSUSHITA ELECTRONICS CORP. 19 Nov., 1969 [20 Nov., 1968], No. 56559/69. Headings H3R and H3T. [Also in Division H1] A microwave oscillator has a solid state oscillator device 22 operatively installed in a cavity resonator 21, a solid state electrically controllable variable reactance device 25 operatively installed in a further cavity resonator 23 and the cavity resonators 21 and 23 are coupled in microwave operation. As shown, the oscillator device 22 may be a Gunn, avalanche, LSA or tunnel diode or a transistor and the voltage variable reactance device 25 which acts to vary the tuning of the oscillator may be a variable capacitance diode, P-N junction diode, Scholtky barrier diode, MOS diodes or varactor. Course tuning is obtained by movable short 24 and fine tuning by the device 25 and stub 43. The frequency of the oscillator may be modulated by a voltage 27 applied together with D.C. source 26 to the voltage variable capacitor 25. Modulation distortion may be reduced by adjusting the movable short 24 and stub 43. Automatic frequency control may be provided by detecting the frequency deviation from a preset value and converting the deviation with a discriminator to provide a control signal which is fed back to control the variable reactance device. H.F. filters 31, 32 are used and instead of the hole coupling between the cavities 21, 23, loop coupling may be used. The cavity 23 may be removable and the variable reactance device 25 may be interchangeable in order to widen the frequency range.
Patent GB-1183050-A (GB)
Title: Improvements in or relating to the Automatic Measurement of Blood Pressure
Inventor: GOLD DEREK CHARLES
IPC: A61B5/022
Filed: 1966-12-17
Abstract: 1,183,050. Measuring blood pressure. ELECTRONIC & X-RAY APPLICATIONS Ltd. 15 March, 1968 [17 Dec., 1966], No. 56600/66. Heading A5K. [Also in Division G1] A system for the automatic measurement of systolic blood pressures includes a pair of overlapping inflatable cuffs 34, 36, means for detecting pressure pulses in the lower cuff 34 which do not occur simultaneously with pressure pulses in the upper cuff 36, and means for measuring the pressure in the cuffs when such non-simultaneous pulses are detected, the detecting means being substantially non-responsive to pressure pulses occurring simultaneously in the upper and lower cuffs. As shown, the system comprises a control unit 37 having a switch 38 able to be set so that a pump 31 inflates the cuffs with air through a passage in a transducer, a mercury manometer 33 being connected to the cuffs and arranged to operate a bistable device to switch off the pump when the cuffs reach a predetermined pressure. The cuffs then gradually deflate through an adjustable vent (20, 22) in the transducer (Figure 1, not shown) until, at the systolic blood pressure of the patient, blood passes under the two cuffs. Pressure pulses then occur non-simultaneously in the cuffs causing a puff of air from the cuff 34 to pass (within the transducer) from a jet (13) onto a thermister (15), the output 46 from the thermistor then causing a bistable device 42 to isolate the manometer so that a systolic blood pressure reading may be taken. The control unit includes switches 39, 49 so that measurements may be taken on demand or at chosen time intervals, and the manometer may provide an electrical output to a recorder or cath ode ray screen. A series of platinum contacts on the manometer shorted by the mercury provide for such an electrical output and a second series of contacts provide for an electrical pulse operating the bistable device 43. The transducer (Figure 2, not shown) is arranged such that pulses transmitted simultaneously to the two cuffs, when the cuffs are at pressures above systolic and because the cuffs overlap, produce puffs of air in jets (12, 13) in the transducer which mix and pass into the adjustable outlet 21 without effecting the thermistor. The valve 32 which isolates the manometer may be a three way valve or two valves arranged to provide a rapid exhaust to atmosphere when the cuffs are finally deflated. An input and time delay is provided (not shown) so that the bistable device 42 cannot be unset while (and for a short period after) the bistable device 43 is set.
Patent GB-1164045-A (GB)
Title: Indexing and Dispensing Mechanism
IPC: B65H20/22
Filed: 1967-12-13
Abstract: 1,164,045. Cutting webs. STANDARD PRESSED STEEL CO. 13 Dec., 1967 [16 Dec., 1966], No. 56652/67. Heading B4B. [Also in Division B3] Apparatus for indexing a ribbon R of plastic and for sub-dividing it into discrete lengths for application to a workpiece, e.g. a threaded bolt, comprises a transfer block 87 movable in a reciprocating path between two positions, a ribbon guide 89, 90 secured to the block 87 which has a bore 91 through which is reciprocable a rod 96 carrying a pin 97, the pin 97 being moved to pierce the ribbon after which the block 87 is moved forwardly to advance a length of ribbon, another ribbon guide 105, 106 across which is movable a pin 110, the pin 110 being moved downwardly to clamp an advanced length of ribbon, the exit of the guide 105, 106 having coacting therewith a reciprocating tool T to shear off a discrete length of ribbon for application, e.g. by heat and pressure, to the workpiece. The tool T is secured to a piston-rod 114 and is guided by means of a roller 119 mounted on a bifurcated bracket 120. The block 87, pin 97 and pin 110 are reciprocated by means of doubleacting fluid-pressure cylinders C1, C2 and C3, respectively, which drive piston-rods 79, 96 and 109. The cylinder C1 and piston 79 are axially adjustable.
Patent GB-1305395-A (GB)
IPC: G01S13/64
Filed: 1969-11-19
Abstract: 1305395 Radar MOTORALA Inc 19 Nov 1969 [19 Nov 1969] 56734/69 Heading H4D In a vehicle-borne azimuth-scanning radar receiver, range-gated filters are responsive to a filter control signal to adjust the filter frequency response such that clutter is rejected, while the maximum frequency band width is provided for moving target detection against varying clutter conditions. As shown, a radar video signal is supplied to range-gated filters 34, the outputs from which are fed to a moving target (ot other radar) indicator 54 and to an adaptive averaging circuit 56 to provide adaptive optimizing of clutter rejection. Circuit 56 receives a reference potential as at 57 which may be indicative of an acceptable clutter level to indicator 54. Thus, circuit 56 compares the amplitude of the rangegated video, over a predetermined interval, with the reference potential to produce an error signal which is used to adjust the frequency bandwidth of filters 34. A range enabling pulse of a duration representing the range of interest ensures that the range-gated video is utilized in the averaging circuit only in such range of interest, thereby effecting clutter optimization only within the period of the range gate.
Patent GB-1397323-A (GB)
Title: Plate cutting apparatus
Inventor: SEKINE K
IPC: B23K7/00
Filed: 1972-12-12
Abstract: 1397323 Cutting by fusion NIPPON KOKAN KK 12 Dec 1972 [21 Jan 1972] 57316/72 Heading B3V An apparatus for cutting a straight bevelled edge in a plate 2 comprises a carriage 1 movable in a cutting direction A, a cutting torch 5 and an arm 9 attached to the carriage 1, a plate thickness detector 10 mounted on one end of the arm 9 below the plate 2 and means 11 responsive to output signals of the detector 10 for moving the torch 5 relative to the cutting direction A. In one embodiment, the cutting torch 5 is mounted on a movable arm 12 of a carriage 1 slidable along a beam 3 which is itself movable along a rail 8 in the cutting direction A. Attached to the arm 12 is another arm 9 mounting a roller CR 1  which is urged by a spring into contact with the lower surface of the plate 2 formed of members of different thicknesses welded together at 6 and 14. When a difference in plate thickness is detected by the roller CR 1 , an output signal is applied from a transmitter CX to a transformer CT which generates an output voltage to actuate a motor M 1  causing the carriage 1 to be moved along the beam 3 thereby maintaining the bevelled edge in a straight line. The upper surface of the plate 2 is contacted by a roller CR 2  of a differential transformer LT 1  mounted on the other end of the arm 9. When an output voltage is produced from the transformer LT 1  due to vertical movement of the roller CR 2 , a motor M 2  is actuated to vertically move the arm 12 so as to maintain the torch 5 and roller CR 1  at a predetermined distance from the upper surface of the plate 2. In another embodiment (Fig. 3, not shown), wherein the torch 5 is moved vertically to keep the bevelled edge straight, the bottom surface of the plate 2 is followed by a roller of a differential transformer (LT 2 ) which controls the motor M 2  for maintaining the arm 12 a constant distance from the plates bottom surface. The torch 5 is connected to a differential transformer (LT 3 ) (Fig. 4, not shown), having a roller following the upper surface of the plate 2 so that when the arm 12 is moved, a motor (M 3 ) is actuated to cause the torch 5 to be moved relative to its holder 4 by the same distance thereby maintaining constant the distance between the torch 5 and the upper surface of the plate 2.
Patent GB-1369939-A (GB)
Title: Transponder for telemetering system
IPC: H04M11/00
Filed: 1972-12-14
Abstract: 1369939 Telemetry systems INTERNATIONAL STANDARD ELECTRIC CORP Dec 1972 [16 Dec 1971] 57758/72 Headings G4D D6M3 D6Y D6C1 and D6C2 [Also in Division H4] A telemetry system for reading one or more remote meters A, B, C comprises a respective memory 14 and a shift register 16 for storing the reading of each meter, a control circuit 35 responsive to a signal supplied from a telephone network interface unit 22 via a receiver 30 and a telephone line unit 24 for reading out the stored data, and an encoder 40 for converting the data into tone signals which are transmitted to a central data processor 20. Each meter, which may be a gas, water or electricity meter generates pulses by means of a respective switch Al, B1, Cl closed by an associated reed switch as the meter reading changes, the pulses being shaped in a buffer circuit 12 and counted by counters in the memory 14. Each memory supplies a binary coded decimal output to the respective shift register 16. When the meter readings are to be transferred to the processor 20, the unit 22 sends a 697 Hz signal to the receiver 30 via the unit 24. The frequency and duration of the signal are checked by the circuits 30, 35 and if satisfactory, the circuit 35 supplies a signal to a power supply circuit 45 to cause a battery to be connected to the shift registers and to a multivibrator in the encoder 40. The multi-vibrator supplies clockpulses on a line 235 to the circuit 35. The clockpulses are fed to the shift registers via a line 228 to enable the serial read-out of sixteen data bits from each register. The encoder converts the data into a form in which each bit is represented by one of two frequencies, the data being transmitted over a telephone line 26 to the processor 20 via a gate 224 opened by the 697 Hz signal. After the transmission of the total 48 bits of data, a signal from a clockpulse counter in the circuit 35 closes the gate 224 and switches off the power supply to the encoder and shift registers. If a telephone subscriber whose meters are being read lifts the receiver, the data transmission is stopped and since all the 48 data bits have not been received by the processor, the partial data transmitted is erased. The battery in the supply 45 is charged from a recitified 12 volt A.C. supply and if prolonged failure of the A.C. supply causes excessive discharge of the battery the power supplied to the receiver 30 on a line 350 is switched off to prevent operation of the system.
Patent GB-1248493-A (GB)
Title: Worm conveyor
Inventor: HINDERMANN ERICH AUGUST
IPC: B65G33/00
Filed: 1969-11-27
Abstract: 1,248,493. Worm conveyers. E. A. HINDERMANN. 27 Nov., 1969 [29 July, 1969], No. 68031/69. Heading B8A. Material, such as coffee beans, is introduced into a hopper 8 and transported through a flexible tube 1, to be discharged at 9, by two helices 2, 3 which are rotatively mounted at 7 and are secured at 5 to be rotated in the same direction by a shaft 6 driven by a motor 4. The inner helix 3 has a greater pitch than the outer helix 2. Fig. 3 shows the drive wherein the helix 3 is secured to a disc 5a on motor shaft 6a, whereas the helix 2 is secured to an annulus 5b driven frictionally by a clutch disc 6b which is slidable on the shaft 6a. In operation the motor is started to drive the helix 3 and at a subsequent moment, determined by timing means (not shown), an electromagnet 15 is operated to rotate a lever 10 anticlockwise to permit the disc 6b to be impelled by a spring 6c to engage the annulus 5b to cause rotation of the helix 2.
Patent GB-1400940-A (GB)
Title: Brakes
IPC: F16D55/30
Filed: 1973-12-18
Abstract: 1400940 Disc brakes LAMBERT BRAKE CORP 18 Dec 1973 [2 Jan 1973] 58602/73 Heading F2E A disc brake comprises a U-shaped channel member 20 having side sections 22, 24 joined by a bight portion 26, stators 52, 54 located on either side of a disc 16 and a lever 66 having a cam surface 76 for actuating stator 54 the lever extending through a slot 68 in the side section 24 and pivoted on the section 24 by means of a pin 72 which passes through an aperture 74 formed in the lever and bears against an elongated groove 70 in the side section 24. The channel member may be formed of sheet metal and the groove 70 may comprise an embossed section of the side portion 24. In the embodiment shown the disc 16 is axially movable and the lever 66 applies the stator 34 through cam surface 76 until the disc 16 bears on the stator 52. Alternatively the disc may be fixed.
Patent GB-1212059-A (GB)
Title: Method and apparatus for texturizing textile yarns
IPC: D02G1/08
Filed: 1968-12-10
Abstract: 1,212,059. False twisting yams. TURBO MACHINE CO. 10 Dec., 1968 [13 Dec., 1967], No. 58607/68. Headings D1D and D1F. Apparatus for texturising yarns comprises means providing paths for continuous yarn travel, e.g. sley bars 22, 32 and 36, means defining a twist zone, means 24 for continuously applying false twists to the yarns in the twist zone, and means, e.g. heater 27 for setting twisted yarns in the twist zone, the apparatus being characterised in that the false twist means 24 comprise continuously oppositely movable belt runs 48, 51 for frictionally engaging and twisting yarns, and said runs comprise means for simultaneously offsetting the plurality of yarns conveyed therebetween from their respective yarn paths. The yarns are offset laterally from their respective paths. One of the belt runs is disposed slightly upstream relative to the other of said runs. The twist zone is defined by pairs of nip rolls 25, 26 and 52, 53. In a preferred embodiment the source of yarns is offset in a direction opposite to the direction of travel of the upstream belt run.