baber/WOPTO huggingface dataset:
Patent GB-1256516-A (GB)
IPC: H04N5/33
Filed: 1968-11-12
Abstract: 1,256,516. Television. ELTRO G.m.b.H. & CO. 12 Nov., 1968 [1 Dec., 1967], No. 53706/68. Addition to 1,214,870. Heading H4F. [Also in Division G2] Due to a constant viewing angle of the optical scanning unit of the parent Specification, the width of each terrain strip scanned increases from the centre outwardly towards.the two ends of the strip. Thus if the scanning is performed so that successive strips just touch at the centre, then there is a degree of overlap which increases in magnitude towards, the strip ends, the overlap area corresponding to, portions of the terrain which are scanned twice resulting from. the scanning of two successive strips. However, the glass fibre optical system forms a rectangular image of the terrain strip on the recording film and thus the scaleof the. strip as recorded decreases in the direction from the centre to the ends of the strip. On account of this distortion an objelt, e.g. a tank, detected in the overlap, area, may; appear on the record film as two adjacent tanks. The present invention, overcomes this defect. In one method of the, invention, Fig. 3, the optical-electronic receiving elements 1. ... 12 which scan adjacent elements of a terrain strip are connected to the luminescent diodes 21 ... 32 by switches 41 ... 45, 48 ... 53, 60. The switches are operated in groups at successive points in time in the scanning operation thus: at t 1  switches 41, 52; at t 2  switches. 42, 43, 50, 51; at t 3  switches 44, 45, 53, 48, 49, 60; the final switching position being as shown in Fig. 5. Thus the elements 1 and 12, 2 and 11, 3 and 10 are successively disconnected and each of the elements 2 ... 11 is. for some time connected to two diodes. The effect of this switching is to chop off the overlapping scanning areas so that the output from the diodes 21 ... 32 represents a scanned terrain strip of rectangular shape. In another method of the invention the image formed on the record film is caused to have a non-rectangular shape similar to that scanned. Tb this end, Figs. 8, 9, the glass fibre optical element in front of the record film 55 is divided into strands 70 ... 79, all of the strands except the centre strands 74, 75 having enlarging elements 80 ... 83, 86 ... 89. Alternatively the glass fibres may be positioned at an angle to the record film, the resulting elliptical light spots having different eccentricities.
Patent GB-1257271-A (GB)
IPC: G07D7/20
Filed: 1970-04-07
Abstract: 1,257,271. Photo-electric currency authentication. LANDIS & GYR AG. April 7, 1970 [April 16, 1969], No. 16350/70. Heading G1A The authenticity of an intaglio printed note is determined by measuring sequentially the reflectance from a lined area which it is irradiated in the direction of the lines and then at rightangles thereto by a beam making the same small angle with the surface, the measurement being made photo-electrically and the values being compared. One or two sources may be used and one or two detectors and in the case of use of a single source and detector they may be movable into the two directions or the note may be mounted to be rotated from one desired singular position to another. Systems of mirrors may be used, to direct the beam or beams, and light may be projected through a means for reducing the incidence on the photo-cell of reflected light.
Patent GB-1258088-A (GB)
IPC: H01S3/098
Filed: 1969-05-08
Abstract: 1,258,088. Lasers. WESTERN ELECTRIC CO., Inc. 8 May, 1969 [13 May, 1968], No. 23533/69. Heading H1C. Transverse mode switching in a laser oscillating in at least one transverse mode is accomplished by the injection into the laser cavity of an optical signal of the desired output mode. The cavity is designed to provide for transverse mode competition in the laser resonator which mode competition is related to the principle that a particular atom can contribute energy to only one particular mode so that when one of the modes is made to be preferred by injection of the signal of the preferred mode into the laser cavity energy is transferred to this mode. The output from a helium-neon laser 10 oscillating at a single frequency and in a single, second order, mode is passed via isolator 30, 40 to helium neon laser 20 oscillating in the fundamental transverse mode, all other modes being suppressed by aperture 28. The injection of the second order mode causes the laser 20 to switch from oscillating in the fundamental mode to oscillation entirely in the second order mode, Figs. 2A, 2B, 2C (not shown). If aperture 28 is omitted so that laser 20 oscillates in a plurality of transverse modes then, provided there is sufficient mode competition, the injection of a low level transverse mode signal into cavity 24, 26 causes laser 20 to switch to oscillate entirely in this mode and at the same time image amplify the injected signal, Figs. 3A, 3B, 3C (not shown). As well as acting as a binary switch the apparatus may be used to amplify a single frequency complex signal i.e. a signal characterized by a plurality of transverse modes. In this case the complex signal is injected into laser 20 oscillating in a plurality of transverse modes at the same frequency whereby laser 20 switches to oscillation entirely in the transverse modes of the complex signal with the same ratio of amplitudes but with amplification. To achieve this the cavity resonator of laser 20 is frequency degenerate at the frequency of the input signal, transverse mode competition is reduced in order that the oscillator locks to the input signal modes, the oscillator is characterized by net gain for oscillations in as many transverse modes as are in the input signal and mirror 24 is of high transmissivity to provide substantially equal gain for all these modes. When the apparatus is being used as a binary transverse mode switch or amplifier the laser cavity may be concentric degenerate Fig. 4A (not shown), plane parallel degenerate Fig. 4B (not shown) or if the OFF state is a higher order mode the cavity may be confocal half-degenerate, Fig. 4C (not shown) or half confocal Fig. 4D (not shown) the last two cavities not being suitable for amplification. Fig. 4E shows a cavity suitable for amplification of a complex signal. Solid state lasers such as Nd-7AG may be used.
Patent GB-1258755-A (GB)
IPC: C22B9/10
Filed: 1968-04-09
Abstract: 1,258, 755. Flux for preventing oxidation of molten metal. IMPERIAL SMELTING CORP. (ALLOYS) Ltd. March 27, 1969 [April 9, 1968], No. 17035/68. Headings C7D and C7M. Molten Zn, Pb, Sn, Al or alloys thereof are covered with a molten flux layer consisting of or containing as a predominant component either sodium aluminium chloride or a mixture of sodium aluminium chloride and sodium chloride. The flux may also contain alkali or alkaline earth metal halides such as KCl and Na 3 AlF 6 . The flux may be used in recovering Zn from Zn dust, Al from furnace dross and Te from Pb.
Patent GB-1288512-A (GB)
IPC: C07C235/64
Filed: 1970-09-07
Abstract: 1288512 Salicylanilides and thiobenzanilides MERCK & CO Inc 7 Sept 1970 [8 Sept 1969] 42689/70 Heading C2C The invention comprises novel salicylanilides and thiobenzanilides of the formula. in which A is H, C 1-6  alkanoyl or aroyl; each of Y 1  and Y 2  is H, halogen, OH, alkyl, haloalkyl or polyhaloalkyl; Y 3  is halogen, OH, haloalkyl or polyhaloalkyl; each of X 1  and X 2  is H, halogen, alkyl, polyhaloalkyl, haloalkyl or NO 2 ; X 3  is halogen, alkyl, haloalkyl, polyhaloalkyl or NO 2 ; R 2  is H or alkyl; R 1  is alkyl, C 3-6  cyclo - alkyl or monohaloalkyl or polyhaloalkyl in which there is more than one type of halogen atom present; Z is O or S; provided that when Z is not S when R 1  is alkyl and that at least one of X 1 , X 2 , X 3 , Y 1 , Y 2  and Y 3  is other than H or halogen when R 1  is CH 3  and A is H; and all the alkyl, haloalkyl and alkoxy radicals contain not more than 5 carbon atoms, and their preparation. Compounds in which Z is O are prepared by reacting the appropriate aniline derivatives with the corresponding salicylic acids or acid halides. Compounds in which Z is S and R 2  is H are obtained by reacting phenols and phenyl isocyanates of the formulµ Compounds in which R 2  is alkyl are made by reacting the corresponding compounds in which R 2  is H with alkyl halides. The following starting materials are prepared: potassium 2,6 - dichloro - 4 - nitrophenate, potassium 2,6 - dibromo - 4 - nitrophenate, 1,3 - dichloro - 2 - methoxy - 5 - nitrobenzene, 1 - chloro - 3 - methyl - 2 - methoxy - 5 nitrobenzene, 1 - chloro - 3 - trifluoromethyl - 2- methoxy - 5 - nitrobenzene, 1,3 - dichloro - 2- cyclohexyloxy - 5 - nitrobenzene, 1,3 - dichloro- 2 - ethoxy - 5 - nitrobenzene 2 - butoxy - 1,3- dichloro - 5 - nitrobenzene, 1,3 - dibromo - 2- methoxy - 5 - nitrobenzene, 3,5 - dichloro - 4- methoxy - aniline 3,5 - dichloro - 4 - cyclohexyloxyaniline, 3,5 - dichloro - 4 - ethoxyaniline, 4 - butoxy - 3,5 - dichloroaniline, 3- chloro - 5 - ethoxy - 4 - methoxyaniline, 3- chloro - 5 - trifluoromethyl - 4 - cyclohexyloxyaniline, 3 - chloro - 5 - trifluoromethyl - 4 - ethoxyaniline, 4 - butoxy - 3 - chloro - 5 - trifluoromethylaniline, N - propyl - 3,5 - dichloro- 4 - ethoxyaniline, N isopropyl - 3,5 - dichloro- 4 - ethoxyaniline, N - butyl - 3,5 - dichloro - 4- ethoxyaniline, 3 - chloro - 4 - ethoxyphenyl isothiocyanate, 3 - chloro - 4 - cyclohexyloxyphenyl isothiocyanate, 3 - chloro - 4 - (#- chloro - α,α,# - trifluoroethoxy)aniline, 1- chloro - 2 - (# - chloro - α,α;# - trifluoroethoxy)- 5 - nitrobenzene and 3 - chloro - 2 - (#- chloro- α,α,# - trifluoroethoxy)phenyl isocyanate. Anti-bacterial compositions contain the above novel compounds and excipients. The compounds also possess anthelminthic activity.
Patent GB-1289016-A (GB)
IPC: H05B3/68
Filed: 1970-06-17
Abstract: 1289016 Electric hot-plates TAPPAN CO 17 June 1970 [6 Oct 1969] 29429/70 Heading H5H A smooth top cooker unit comprises an enclosure with a smooth glass or glass-ceramic top 34, an electric heater unit mounted in the enclosure, the heater unit comprising a temperature resistant body 29 with a recessed top containing a resistance heating element 32, the recess 30 in the top of body 29 being completely surrounded by a rim 33 which engages the underside of the glass top 34 so that the element 32 is spaced from the glass top 34 and is operative in a space completely enclosed by top 34 and body 29. The body 29 may be spring urged against the top 34 and be slightly deformed to ensure a tight seal. The element 32 is a coiled wire snap fitted into a spiral groove 31 formed in body 29. A cylindrical metal pan 37, supported from the floor of a metal box 11, forming the bottom of the enclosure, by metal legs 40 and supports 41, encloses the body 29. As shown four such heater units are mounted to the left of a vertical partition 13 of the enclosure. On the right of partition 13 the enclosure is further subdivided by vertical partitions 14, 15. In the front compartment so formed are the control units 17 for the heater units. The centre compartment contains a blower driven by a motor 20 in the front compartment. Air is drawn in through slotted cover 23, passed via a duct in partition 13 to the heater units 25 and 26 and then directed by a vertical daffle 42 to rear heater units 27, 28 before emerging through a screened top 24 of the rear compartment. The blower may be programmed to continue operating for a predetermined time after de-energization of the heater units.
Patent GB-1290562-A (GB)
IPC: B21K1/56
Filed: 1970-07-24
Abstract: 1290562 Making screws AMP Inc 9 July 1971 [24 July 1970] 35910/70 Heading B3A [Also in Division F2] A stick of screws is formed from extruded stock of cruciform cross-section. The ribs 1 are cut away to define tapering leading edges 2, portions 5 of reduced height, and heads 6. The rib portions 5 are serrated by teeth 7 forming an interrupted screw-thread. Slots 8 are provided to weaken the connection between adjacent screws and to serve as screw-driver slots. Tongues 9 may be provided as locking members.
Patent GB-1296193-A (GB)
IPC: C10G/
Filed: 1970-01-15
Abstract: 1296193 Making combustible gas VICKERSZIMMER AG PLANUNG UND BAU VON INDUSTRIEANLAGEN 15 Jan 1970 [15 Jan 1969] 2120/70 Heading C5E [Also in Division B1] Hydrocarbons to be converted, e.g. to make town gas, pass down tube 3, and up through catalyst support 6 (concentric rings) and catalyst to outlet 4. The apparatus shown is supported in a furnace. Tube 3 may have the "wavy" shape shown, or may have helical or spiral shape. Protective tube 10 is connected to tube 1 by a compensating device 11 to allow for varying expansions of the apparatus.
Patent GB-1297990-A (GB)
IPC: C07C255/08
Filed: 1970-11-16
Abstract: 1297990 Ammoxidation catalysts MONSANTO CO 16 Nov 1970 [17 Nov 1969 (4)] 54467/70 Heading B1E [Also in Division C2] A catalyst comprises either (a) antimony, uranium and tungsten or (b) at least one metal that catalyses the ammoxidation of saturated hydrocarbons, in admixture with sulphur, a sulphur-containing compound or elemental halogen.
Patent GB-1301498-A (GB)
IPC: F16B19/10
Filed: 1970-11-03
Abstract: 1301498 Stud fastenings REED INTERNATIONAL Ltd 13 Oct 1971 [3 Nov 1970] 52273/70 Heading E2B A stud fastener for securing together plastics fencing parts 1, 2 comprises plastics tube part 3 having a head 6 at one end and a chamfered collar 5 at its leading end which is slotted at 7 to enable it to pass through holes in the parts 1, 2, and a stud 4 which is inserted into the tube to hold the collar in an expanded position and which also has a chamfered portion 8 whose rear surface snaps against the end surface of the tube. Both tube and stud are of plastics material.
Patent GB-1303428-A (GB)
IPC: C23C8/26
Filed: 1969-04-10
Abstract: 1303428 Nitriding steel NATIONAL RESEARCH DEVELOPMENT CORP 25 March 1970 [10 April 1969] 18504/69 Heading C7U An iron alloy including at least one ironsoluble addition which reduces significantly the activity coefficient of nitrogen in iron, is gasnitrided in an atmosphere the nitrogen potential and temperature of which are such as to favour the formation of G.F. zones and inhibit the production of iron nitrides. The alloying element may be Ti, V, Cr, Mn, Zr, Nb, Mo, Ta or W, generally in the range 0À2-10% by weight, while the nitriding temperature may be 450-650‹C.
Patent GB-1314954-A (GB)
Title: Precast panel building wall construction and method
IPC: E04B2/58
Filed: 1971-08-17
Abstract: 1314954 Stud-and-slab walls MODULAR WALL SYSTEMS Inc 17 Aug 1971 38631/71 Heading E1B A stud-and-slab wall consists of spaced column members 10 orientated so as to have elongate vertical channels of two adjacent columns disposed in opposing relation for the reception of the ends of precast, e.g. concrete, panels 15 at least one surface of which simulates the appearance of handlaid masonry, the panels being inserted from above and, after being slid down to the desired level, e.g. to contact a foundation or a lower block, being wedged in position within the channels by angle irons 18. The columns are preferably steel I-section members and the angle irons 18, which compress packing material 19 to urge the panels against further packing material at the opposite sides of the channels, are welded to the associated flanges of the I-section members.
Patent GB-1316943-A (GB)
Title: Lampholders
IPC: F21S8/00
Filed: 1969-05-19
Abstract: 1316943 Indicator lamp GEORGE TURNOCK Ltd and H C SHELTON 18 May 1970 [19 May 1969] 25501/69 Heading F4R [Also in Division H2] An indicator lamp comprises a hollow tubular body 10 having an outwardly directed flange 13 at one end and a retaining portion 11 constituted by an outward bulge in the wall of the body, which portion tapers outwardly from a position remote from the flange to a position adjacent to the flange, this retaining portion being both flexible and resilient and not directly connected to the flange but co-operating with it to retain the lamp body in a circular hole in a panel with the flange abutting the surface of the panel. A rear plug portion 26 of the body has an axial opening to carry an electrically conductive member 32 by which electrical contact is made to a terminal of a centre-contact bayonet-type bulb 21 in the body and has a further aperture 30 to allow passage of a second electrically conductive member 23 to a ring 22 surrounding and in electrical contact with the other terminal 18 of the bulb which is prevented from passing through the ring by lugs 20, the bulb being forced into contact with these contacts by a spring 35 held in the body. A lens 15 which may be transparent, translucent or coloured, or plain or ribbed, is held on to the body by a bezel 16.
Patent GB-1326237-A (GB)
Title: Flue fan unit
IPC: F04D29/42
Filed: 1970-12-10
Abstract: 1326237 Centrifugal fans BLAWS ENG PRODUCTS Ltd 3 Dec 1971 [10 Dec 1970] 58753/70 Heading F1C A flue fan unit for incorporation in a flue piping comprises a fan 12 having a single inlet 13 on one side and its driving motor 14 on the opposite side, a casing 15, 21 surrounding the fan and motor and having a main inlet 16 for connection to receive the flue gases and an outlet 18 for connection to the flue discharge, the casing having an additional inlet covered by a grid 22 through which the fan sucks in secondary ambient air 23 the secondary air passing over the motor to cool it. The casing part 15 forms a straight portion of the flue piping of a gas appliance. A deflector plate 20 protects the fan from the hot flue gases 17, which are diluted and cooled before entering the fan inlet 12 via an aligned aperture in the deflector plate. The motor 14 is linked via a relay to the magnetic valve of the gas appliance so that the valve cannot be operated unless the motor is energized. A flow-operated vane on the discharge side of the fan actuates a switch to cut off the supply to the gas appliance if the flow falls below a predetermined volume. Instead, a thermostat on the discharge side of the fan may switch off the gas appliance if the temperature becomes excessive.
Patent GB-1329662-A (GB)
Title: Memory system
IPC: G11B3/36
Filed: 1971-05-07
Abstract: 1329662 Information storage; positioning apparatus EG & G Inc 7 May 1971 13750/71 Headings G4H and G5R In a random access data storage system in which the storage element is a gramophone  record, access to data in a particular turn in the record's spiral groove is obtained by "skating" the pick up stylus outwardly from an inner "home" position across the turns until the total number of pulses counted-each generated as the stylus crosses a turn-equals the address number of the particular turn. The record which is held stationary during the skating process is then rotated on its turntable to read out the required data. Stylus 27 is mounted on pick up arm 30 which is mounted for horizontal movement on a rotatable shaft 31, in addition the arm can be pivoted vertically by a lifting rod 35 which extends through the shaft 31. The turntable 11 is driven when idler wheel 17 is moved into engagement with the rim 24 of the table and with motor shaft 15a and the motor 15 is energized. The access sequence is controlled by a motor 42 which drives a cam wheel 43 which carries a switching lobe 46 and an offset drive pin 44. This pin engages in a slotted transverse section 48 of a yoke member 47 and also in a slot 64 of an arm 60 which pivots freely about shaft 31. The free end of arm 60 carries an electromagnet 66 which co-operates with an armature 67 mounted on a second arm 61 which is fixed to shaft 31 and pivots with the tone arm 30. When an address is fed to the apparatus, motor 42 and the electromagnet 66 are energized and the wheel 43 rotates anticlockwise drawing with it arm 60 which in turn via electromagnet 66 and armature 67 rotate arm 61 and pick up arm 30 so that stylus 27 skates outwardly across the record from its inner home position. When the total number of pulses generated by the pick up equals the address number plus an extra, e.g. five grooves to provide a margin against error, a comparator provides an output which de-energizes the electromagnet, releasing arm 61 and hence the pick up arm from arm 60. At the same time yoke member 47 is moved to the left allowing spring 19 to pivot arm 20 so that idler 17 is moved into contact with motor shaft 15a and the turntable rim 24. The turntable drive motor is now energized a short delay period after the comparator has provided an output and the record is played to provide the output information. During this period wheel 43 reaches its half rotation point actuating micro switch 70 which turns off control motor 42. When the information has been read out the turntable drive motor is de-energized and the control motor 42 is re-energized and continues driving the cam wheel 43. During this part of its movement yoke 40 is moved to the right whereby the turntable idler is disengaged and an inclined portion 38 of the yoke engages beneath lift pin 35 to lift the stylus from the record. In addition the return movement of arm 66 moves arm 61 and hence the pick up arm back to its home position at which the stylus is lowered on to the record by the return of the yoke to its initial position.
Patent GB-1330214-A (GB)
Title: Vapour discharge lamps
IPC: H01J61/04
Filed: 1972-06-16
Abstract: 1330214 Lamps THORN ELECTRICAL INDUSTRIES Ltd 16 June 1972 [7 Sept 1971] 41727/71 Heading F4R [Also in Division H1] A vapour discharge lighting unit includes a light-transmitting arc chamber 11 provided with electron-emitter electrodes 20 and containing a metal or metal compound the vapour of which in use supports an arc discharge emitting resonant radiation between the electrodes, and a bowl reflector 12 associated with one or both electrodes and so located outside the chamber as to collect a proportion 24, 25 of the said resonance radiation from the discharge region and reflect the collected radiation towards a space within the chamber outside the discharge column and behind the associated electrode. In the embodiment shown the bowls 12 are part ellipsoidal and are secured to nibium caps 16 and 17 closing the ends of the sintered alumina tube 11 and supporting electrodes in the form of tungsten wires 20 carrying tungsten coils 21 coated or impregnated with electron, emissive material. A filling, e.g. of sodiumxenon and mercury is introduced through a niobium exhaust tube 18. Fillings of other alkali metals may be employed, or halides if the arc tube 11 is made of fused silica. The reflectors 12 instead of being of metal may be of the interference or dichroio type to transmit visible light while reflecting infra-red radiation or to trasmit U.V. while reflecting light of longer wavelengths. The arc tube 11 may be U-shaped so that only one reflector 12 is necessary. A single reflector also suffices if the lamp is operated on D.C. As an alternative to enclosing the arc tube 11 and reflector(s) 12 in an outer evacuated envelope 13, the reflector(s) may be built into a light fitting in which the arc tube 11  is supported.