baber/WOPTO huggingface dataset:
Patent GB-1230873-A (GB)
IPC: B06B1/04
Filed: 1968-05-27
Abstract: 1,230,873. Power transducing systems. OHIO, STATE UNIVERSITY. 27 May, 1968 [29 May, 1967], No. 25210/68. Heading H2H. An ultrasonic generator such as a piezoelectric device 25 which transforms electrical impulses into mechanical impulses is supplied with power from an A.C. generator 10 driven by an electric motor 20. The frequency at which the transducer 25 resonates is critical, therefore to obtain maximum power output from the tranducer the generator frequency and hence its speed, must be arranged so that it remains constant. This is effected by constructing the driving motor as a synchronous-type motor and the generator as an inductor-type generator, the speeds of the motor and generator being matched by way of gearing 15.
Patent GB-1238567-A (GB)
IPC: H01H36/00
Filed: 1969-10-17
Abstract: 1,238,567. Pressure gauges. CARBORUNDUM CO. Oct.17, 1969 [Nov.5, 1968], No.51034/69 Heading G1C. In a differential pressure sensitive device a spring-loaded indicator member 26 and a disc 17, attached to the end of a rod 18, are normally attracted towards one another by a magnet 30, separating an indicating; chamber 12b, from a pressure chamber 12a, and the arrangement is such that as long as the pressure, such as on the upstream side of a filter does not exceed a predetermined value the device will remain in the normal or inoperative position but as soon as the pressure in duct 25 exceeds such value, e.g. the filter becomes clogged, the pressure in duct 25 to chamber 1b increases to move a spring-loaded piston 13 away from magnet 30 and carries with it rod 18, plate 20 and disc 17 so that the plate 20 is held in the latter position by a magnet 24 and the member 26 will be moved away from the magnet 30 by the spring 25 to project the indicator 27 to the exposed position shown. The disc 17 is manually restored to the normal position by dismantling the device. A temperature sensing bimetallic strip 35 prevents the plate 20 being moved during cold conditions.
Patent GB-1239119-A (GB)
IPC: B64F1/305
Filed: 1969-12-19
Abstract: 1,239,119. Gangways. DORR-OLIVER Inc. 19 Dec., 1969 [23 Dec., 1968], No. 62022/69. Heading B7J. In a device for loading passengers into an aircraft 16, a telescoping passageway 72 has an inner section 80 which is connected at one end via a weather proof seal 78 to a static structure 20 extending from a terminal 12 and an outer section 82, the section 80 being pivotally mounted at the end adjacent to the terminal 12 for vertical and horizontal swinging motion and a ground supported structure 24 and a cantilever structure 90 supports the passageway 72, the structure 90 having outwardly extending beams 92 which are connected at their outer ends by a cross structure 96 which supports a track 100 oriented transversely with respect to the passageway 72, the track 100 having rails 102 upon which a carriage 104 is suspended by means of rollers 108, which carriage 104 is controllably movable along the track 100 by means of a mechanism 130 having an electric motor 132 to operate axis rollers 134 and has vertically extensible hydraulically operated support means 114 which allow the passageway 72 to be swung vertically and horizontally to mate with an aircraft doorway when in use. As mounted in Fig. 1 the passageway 72 extends over one wing 17 of the aircraft 16. The passageway 72 has side guides 120 which act as a track for side rollers 122, the members 120 and 122 transmitting lateral forces between the carriage 104 and the passageway 72 so as to prevent excessive lateral movement therebetween. Mounted upon each side guide 120 are stops 140 and 150 with stop latches 142 and 152 respectively pivoted upon pins 144 and 154. The upper stops 140 engage a set of stop brackets 148 fixed to each side of the section 80 of the passage way 72 when the passageway 72 is in the stored position. In order to operate the bridge, passageway 72 is raised slightly from the stored position by actuator 146 to allow retraction of stops 140. Lower stop 150 prevents accidental contact of passageway 72 with one wing 17 of aircraft 16 but the stop 150 can be overridden by operating actuator 156 so as to retract latch 152. Further passageways 30 and 44 may be provided which lead from module 10 or facade 12 to the aircraft 16. In a further embodiment described with reference to Fig. 5 (not shown) the module and passageways may be used to provide access to two aircraft parked in the vicinity of facade 12.
Patent GB-1239693-A (GB)
IPC: F02C7/266
Filed: 1969-02-19
Abstract: 1,239,693. Igniters. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. 19 Feb., 1969 [27 Feb., 1968; 29 Jan., 1969], No. 43983/70. Divided out of 1,239,692. Heading F4F. [Also in Division F1] A high tension igniter plug comprises an inner electrode 10, an outer electrode 37 surrounding the inner electrode to define an annular passage therebetween, the electrodes having operative extremities relatively positioned for the development of ignition sparks or arcs therebetween during use when a gas or gas vapour mixture is fed to the annular passage for emergence through a substantially uniform annular gap formed between the operative extremities of the electrodes, and an outwardly flaring generally conical deflector 11 constituting the operative extremity of the inner electrode. The embodiments of the invention described also incorporate means 14 for imparting a whirling motion to the gas in the annular passage in accordance with. the invention claimed in the Specification 1,239,692.
Patent GB-1251518-A (GB)
IPC: F16L37/252
Filed: 1968-11-01
Abstract: 1,251,518. Pipe couplings. KRAMPE & CO. 1 Nov., 1968 [3 Nov., 1967], No. 52015/68. Heading F2G. A quickly-actuable coupling for joining hose- and pipe-lines comprises a socket 1, a plug 2 and a locking sleeve 8, the socket having an annular groove 4 and at least one axial recess connecting with the groove, and the plug being provided with a collar 7 rotatable but not axially displaceable relative thereto the collar having at least one radially extending ear 3 adapted to be inserted in the recess of the socket and after relative rotation of the collar and socket to engage in the groove 4 to couple the socket and plug together and to be freely rotatable in the groove. The locking sleeve is spring biased towards the axial position for locking and slidably mounted for axial displacement on the socket and has a lug adapted in the locking position to engage in and close each axial recess in the socket to complete the annular groove 4 and prevent removal of the ear therefrom.
Patent GB-1252965-A (GB)
IPC: C08G59/68
Filed: 1969-01-15
Abstract: 1,252,965. Glass cloth laminates. UNION CARBIDE CORP. 15 Jan., 1969 [16 Jan., 1968], No. 2332/69. Heading B5N. [Also in Division C3] Glass cloth laminates use as bonding adhesives curable compositions prepared by first mixing piperidine with a polyepoxide and then adding a polycarboxylic acid anhydride to the mixture. The compositions may contain 0À1 to 5% by wt. of piperidine based on the weight of polyepoxide. The anhydride curing agent may be used at from 0À5% of the stoichiometric amount to 1À5% in excess of this amount. The polyepoxide may be a diglycidyl ether of bisphenol A. The anhydride may be derived from an acid A(COOH) 2  where A is a C 1-14  divalent hydrocarbon radical; examples are methylendomethylenetetrahydrophthalic anhydride and methyltetrahydrophthalic anhydride. In an example a 12-ply laminate is prepared by pressing and curing for 1 hour at 120‹ C. and 1 hour at 160‹ C.
Patent GB-1257128-A (GB)
IPC: D02J1/22
Filed: 1969-10-14
Abstract: 1,257,128. Detecting broken filaments. MASCHINENFABRIK RIETER A.G. 14 Oct., 1969 [6 Nov., 1968], No. 50333/69. Heading B5B. [Also in Division F1] In the spin-draw-winding of artificial filaments, breaks in the filaments are detected at the drawing or winding stages and a signal from the break detector is caused to operate both a suction nozzle located upstream of the detector through which the filament supply is drawn away, and a cutting device located immediately downstream of the suction nozzle. Both nozzle and cutter may be compressed air actuated. In Fig. 3 the blade of the cutter (not shown) is moved by a piston-rod 25 attached to a piston 26. Compressed air enters chamber 31 through pipe 15 and only when the pressure is enough to overcome the pressure of spring 29 loaded balls 30 which engage recess 28 in the rod does the rod move, thus ensuring a rapid blade movement. The nozzle in Fig. 4 is fed with compressed air at 15 and the air leaves the nozzle via annular gap 37 through diffuser 36 creating a suction in tube 35. Air reaches annular chamber 38 via passages 39 which enter tangentially (Fig. 5) thus creating a vortex which increases the suction drag on the filaments drawn in at 35.
Patent GB-1265178-A (GB)
IPC: B25B27/00
Filed: 1969-12-02
Abstract: 1,265,178. Pliers. DIONYS HOFMANN MASCHINENFABRIK G.m.b.H. ONSTMETTINGEN (WURTT). 2 Dec., 1969 [2 Dec., 1968], No. 58821/69. Heading B4W. [Also in Division B7] Pliers for applying a balance weight 5 and its separate securing clip 4 to a vehicle wheel rim comprises operating members 1, 2 for exerting opposing forces P 2 , P 1  on the weight and clip, and a third operating member 3 for applying a force P 3 , normal to said opposing forces, to said clip for fixing the clip to the weight. Members 1, 2 are pivoted together at 7 and have jaws shaped to engage the clip and weight, respectively. In one embodiment, member 3 comprises a lever pivoted at 10 to member 1 and formed with one or two protuberances positioned to abut the clip. In another embodiment, member 3 is a pin longitudinally slidable in a housing, formed in the jaw of member 1, by blows applied to its head to apply force P 3  to the clip.
Patent GB-1288848-A (GB)
IPC: B23Q7/05
Filed: 1970-11-06
Abstract: 1288848 Bar-stock feed LIPE-ROLLWAY CORP 6 Nov 1970 [12 Dec 1969] 52930/70 Heading B3B In a multiple spindle lathe having hollow spindles for receiving elongated workpiece bars each bar 15 is incrementally fed by a bar feeder attachment 25 comprising a housing 26 enclosing a constantly rotating pneumatic or electric motor, the housing being mounted pivotally upon a shaft 20 of the machine tool and the motor driving a roller 32 for engaging the bar 15 to feed it longitudinally. The housing is pivoted by face cam 50 rotated by a machine tool shaft 21 and engaging a cam follower roller 47 attached to the housing 26. The motor has attached to its drive shaft a cup-shaped member 29 on which the roller 32 is mounted, and spaced bearings between the said member 29 and the exterior of the housing 26 carry side thrust loads. The roller 32 is made in two halves adjustably spring loaded together.
Patent GB-1290511-A (GB)
IPC: G02B27/44
Filed: 1969-10-06
Abstract: 1290511 Image reproduction AGFAGEVAERT A G 6 Oct 1969 [5 Oct 1968] 48897/69 Heading G2J Two or more images are reproduced simultaneously but spatially separated by illuminating a record 1 comprising a plurality of superinforced images each having a superimposed grating of unique constant and/or azimathal angle, selecting by means 7 those non-zero diffraction intensities associated with the images to be reproduced and by using deflectors 8-11 simultaneously reproducing such images as at 6a, 6b in spatial separation. The selector 7 preferably comprises a circular array of shutters 13-21, Fig.4, one semi-circle of which corresponds to positive diffraction orders and the other semi-circle of which corresponds to negative orders. One shutter 17 or 27 of each half has an aperture 17a or 27a for passing the appropriate diffraction intensity. The shutters 17, 27 may be moved mechanically or electrically to their appropriate location so that the desired images are reproduced, the remaining shutters 13-16, 18-21 having interlocking lugs 14b, 15a, so that they block all other paths of light. A separate series of shutters will be used for each order of diffraction. Light from the selector is passed to the screen 6 by mirrors 8-11. To achieve equality of image brightness the lower diffraction orders pass light attenuating means. Alternatively the superimposed gratings may have a spatial variation of refractive index or aborption coefficient such that the diffraction orders used have equal intensities. If desired the selector 7 may comprise electromagnetically controllable shutters.
Patent GB-1295702-A (GB)
IPC: H02J7/10
Filed: 1970-07-24
Abstract: 1295702 Battery charging systems McCULLOCH CORP 24 July 1970 [24 July 1969] 35995/70 Heading H2H [Also in Division H3] A method of rapidly charging a battery comprises changing a D.C. voltage into an A.C. voltage, rectifying the A.C. voltage into a pulsating D.C. voltage which is applied to the battery through means including a switch so as to charge the battery, the battery being discharged through the switch every time the A.C. voltage drops below the battery voltage. A battery 50 is charged from an A.C. source 10 by way of a rectifier 11, an oscillator-inverter 2. A transformer 3 and rectifier 4, a further inverter 8 being provided if the power output of inverter 3 is insufficient. The output waveforms of the inverters are substantially square waves having steep trailing edges with short transition periods between the positive and negative pulses. By arranging that the diodes 62, 63 in the rectifier 4 have a suitable recovery timesay 50 microseconds-the diodes will then remain conductive during the transition period so that during this transition period the battery 50 will discharge through the diode 60. In order to prevent overcharging of the battery 50 a control circuit 5 is employed. A voltage divider 51, 52, 53 senses the battery voltage' such that at a predetermined voltage thereacross the thyristor. 56 fires to energize a relay W A  so opening a contact A 1  in the supply to the rectifiers 11, 7. In other embodiments the battery charging may be terminated by sampling the quiescent battery voltage or by means responsive to the integrated battery terminal voltage. The relay W A  may be replaced by solid state means and the device for terminating the battery charge may act directly on the inverters.
Patent GB-1297714-A (GB)
IPC: C08C19/22
Filed: 1971-01-19
Abstract: 1297714 Chloronitrosylating polymers BASF WYANDOTTE CORP 19 Jan 1971 [21 Jan 1970 23 Nov 1970] 2688/71 Heading C3P Hydrocarbon polymers which may be substituted by halogen atoms or carbonyl, carboxyl, sulphonyl or hydroxyl groups are chloronitrosylated by reacting with nitrosyl chloride or with chlorine and nitric oxide in the presence of a catalyst and an inert liquid reaction medium. Specified polymers are polyethylene, polypropylene, polybutylene, ethylene/propylene copolymers, chlorinated polyethylene, polystyrene, polymethylstyrenes, polybutadiene, polyisobutylene, polychloroprene, butyl rubber, styrene/butadiene copolymers, polysulphones, polyvinyl halides and polyvinylidene halides. The nitrosyl chloride may be formed in situ by reacting hydrogen chloride with nitrososulphuric acid or an alkyl nitrite, or may be used in admixture with nitric oxide or nitrogen dioxide. The reaction may be catalysed by radiation, heat or an organic peroxide or azo catalyst. Specified inert liquid media include benzene, chlorobenzenes and chlorinated and/or fluorinated aliphatic and alicyclic hydrocarbons. The products may be cross-linked by heating optionally with metal oxides, metal salts, free radical initiators such as peroxides and azo compounds; and optionally in the presence of fillers, stabilizers and plasticizers. Examples describe the reaction of (I) polyethylene in carbon tetrachloride, (II) chlorinated polyethylene in benzene, (III) butyl rubber in carbon tetrachloride, (IV) polyvinyl chloride and polyvinyl fluoride in carbon tetrachloride and chloroform, and polystyrene in benzene, (V-VII) polyethylene in trichlorotrifluoroethane, (VIII and IX) chlorinated polyethylene in trichlorotrifluoroethane and (X and XI) chlorinated polyethylene in trichlorofluoromethane with nitrosyl chloride in the presence of ultra violet light; and the reaction of polyethylene in carbon tetrachloride with nitrosyl chloride in the presence of (IV D) benzoyl peroxide and (IV E) azodiisobutyronitrile. The products are cured by heating, optionally in the presence of magnesium oxide, zinc oxide, carbon black, stearic acid, dicumyl peroxide, chlorinated biphenyl and phenyl-#-naphthylamine.
Patent GB-1301293-A (GB)
IPC: G01R1/20
Filed: 1969-09-15
Abstract: 1301293 Shunts for electrical instruments WESTINGHOUSE BRAKE ENGLISH ELECTRIC SEMICONDUCTORS LTD 6 Aug 1970 [15 Sept 1969] 45346/69 Heading G1U [Also in Division H1] To compensate for the self-inductance L1 of a nominally resistive shunt RL1, the current to be measured is also passed through a further impedance having a self-inductance L2 equal to L1 but a resistance RL2 which is low relative to RL1. The voltages across L1 and L2 are arranged to be mutually cancelling, by either measuring the difference in the voltages across the shunt proper (arm AD) and the further impedance (arm DB) using a differential voltmeter, or completing a bridge network with non-inductive resistors (arms AF, FB) and measuring the voltage across the bridge diagonal (DF).
Patent GB-1306841-A (GB)
Title: Determining intensities of spectral lines
IPC: G01J3/32
Filed: 1970-02-27
Abstract: 1306841 Determining intensity of spectral lines photo-electrically PGH STATRON 27 Feb 1970 9614/70 Heading G1A The intensity of spectral lines are determined by providing a plurality of indicating channels which can be selected by means of electronic switches to receive a detector output in turn as each spectral line is scanned. The light emitted from a sample is projected into a mono-chromator where its spectrum is scanned by vibrating plate 2 which has a slit 2a. Plate 2 is driven by co-operation between armature 3 and electromagnet 1 supplied with alternating current from low frequency generator 18 which also supplies the control circuit 19 so that pulses are applied to the switches 20 on each channel at the correct instant when slit 2a is at a particular position corresponding to one spectral line. In the figure only a single channel is shown where light from a single spectral line passes through slit 2a and pulse a is generated in secondary electron multiplier b. This pulse passes to switches 20 which are operated to pass a maximum intensity pulse e and a flank pulse f which are amplified at 7a, 7b and converted into continuous voltages g, h. These voltages, which should be equal if the scan is correctly dispersed in relation to the scanned spectral line, are fed to an indicator togehter with the outputs from the other channels. The indicator described is an analogue computer so that the actual intensity or ratio of intensities can be indicated. If the scan is off-centre, perhaps due to thermal effects, the height of pulse f is not correct and voltages g and h will not be equal. The difference between these voltages can be used in a control system (not shown) to correct the scan.
Patent GB-1314328-A (GB)
Title: Resolution of noradrenaline
IPC: C07C215/60
Filed: 1969-07-24
Abstract: 1314328 Resolution of dl-noradrenaline UNITED KINGDOM ATOMIC ENERGY AUTHORITY 17 July 1970 [24 July 1969] 37375/69 Heading C2C dl-Noradrenaline is resolved by conversion into its salt with ( - )-2-phenylpropionic acid and fractional crystallization of this salt which may be converted into the l-noradrenaline dbitartrate. Examples relate to the radiochemical isomers dl-noradrenaline C 14  and dl-noradrenaline-T. dl-Noradrenaline-T is prepared by reduction with sodium borotritiate of noradrenalone which may be obtained by reaction of ammonia with the reaction product of catechol monochloroacetic acid and phosphorus oxychloride and converted to the hydrochloride.
Patent GB-1331286-A (GB)
Title: Diazonaphthalene compounds
IPC: G03F7/022
Filed: 1970-10-15
Abstract: 1331286 Diazonaphthalene compounds KODAK Ltd 7 Oct 1971 [15 Oct 1970] 49106/70 Heading C2C [Also in Division G2] The invention comprises diazoketo-naphthalene compounds having the general formula wherein A and B are different and represent a diazo group or an oxygen atom and X and Y are different and represent a hydrogen atom or the group in which R 1  and R 2  each represent a hydrogen atom or an optionally substituted alkyl, aryl or aralkyl radical, n represents a positive integer and Z represents a halogen atom. They may be prepared by reacting the appropriate sulphonyl halide and trihaloalcohol. The compounds of the invention may be used as photosensitizers.
Patent GB-1334040-A (GB)
Title: Method of testing the correspondence of a pair of surfaces
IPC: G01N29/04
Filed: 1970-02-18
Abstract: 1334040 Ultrasonic testing JOSEPH LUCAS (INDUSTRIES) Ltd 12 May 1971 [18 Feb 1970] 7742/70 Heading H4D A method of testing the correspondence of a pair of surfaces includes the steps of applying to one surface a film which is adhesive on both sides, the thickness of the film equalling the thickness of a bonding material with which the surfaces are subsequently to be bonded, mating the second surface to the exposed adhesive and testing the assembly for voids between the surfaces. The preferred method of testing is by ultrasonics.
Patent GB-1335213-A (GB)
Title: Fixed blade louvre assemblies
IPC: F24F13/08
Filed: 1970-08-27
Abstract: 1335213 Ventilators ENGINEERS & METALWORKERS (ST HELENS) Ltd 23 Aug 1971 [27 Aug 1970] 41196/70 Heading F4V A louvre assembly comprises two spaced parallel jambs 10 each having on its inner face angled members 15 defining a channel, louvre blades 20, each blade having slots 27 at each end for receiving the members 15, and spacer elements 30 which are received in the channels between the blades 20, each blade 20 being additionally secured by a bracket 40 which engages channels 26 on the blade and is secured to a common support bar 50 arranged intermediate the ends of the blades 20. The uppermost spacer element in each jamb is secured thereto. The assembly is made of extruded sections. The jambs 10 are mitred and welded to cross-members (11, Fig. 1)
Patent GB-1341505-A (GB)
IPC: G11C19/08
Filed: 1972-09-15
Abstract: 1341505 Magnetic storage devices PLESSEY CO Ltd 15 Sept 1972 [7 Oct 1971] 46623/71 Heading H3B A magnetic material capable of suporting circular magnetic domains comprises a layer of a polycrystalline or amorphous unixial magnetic material having a single easy direction of magnetization normal to a major surface of the layer, the crystallites of the material having a maximum diameter at least one order of magnitude less than the width of a domain wall. In the case of amorphous material the crystallite diameter is the distance through which crystallographic order is maintained. The material may be an orthoferrite, or any other magnetic material such as a metal oxide or an alloy in which the requirement of crystallite dimensions are met. The magnetic material is formed by vapour phase deposition or electroplating in a conducting or non-conducting substrate which may be copper glass or a plastics material. The easy axis of magnetization is produced by the epitaxial effect of the substrate, or during or after deposition of the magnetic material by applying a thermal gradient, a stress pattern, or a magnetic field with or without the use of heat. Domain propagation is obtained by the provision of a permalloy T-bar overlay pattern and a rotating magnetic field. An overlay disc with an associated rotating permanent domain is used for domain generation and a current loop is provided for inductive readout.