baber/WOPTO huggingface dataset:
Patent GB-1112827-A (GB)
Title: Improvements in or relating to an arrangement controlling the rewinding of a spool
IPC: G03B21/43
Filed: 1966-11-25
Abstract: 1,112,827. Feeding record tapes. PAILLARD S.A. 25 Nov., 1966 [16 Dec., 1965], No. 52889/66. Heading G5R. [Also in Divisions F2 and G2] In a mechanism controlling the re-winding of a cine film, tape, or other strip, the increased film tension at the end of a film run transmitted to a film driving wheel actuates an arm 10 engaging the rewind control lever 28. The driving wheel comprises a drum 2 freely rotatable on a driving shaft, and a disc 3 with film engaging teeth 4 and having a projection 17 extending through arcuate slot 18 in drum 2. Wheel 3 and spring-loaded arm 10 rotate on a reduced diameter section 5 of drum 2 and frictionally engage each other and the drum through linings 9, 11, 12. Ratchet wheel 13 is fixed on shaft 1 and drivingly engages a spring- loaded pawl 14 pivoted on drum 2 until, at the end of the film run, increased tension stops wheel 3 against friction torque from lining 12. Projection 17 thereby stops also and disengages driving pawl 14 and the wheel assembly then rotates freely on shaft 1. Arm 10 then moves under spring-action to start the rewind mechanism and fast rewind takes place. After re-wind, film moves off the feed spool and leaves the station F<SP>1</SP> in its path whereby belt-crank 20 pivots clockwise due to spring 22 and blade 25 engages teeth 26 on drum 2 which is then locked. Further projection is possible when lever 28 is returned to its initial position, reengaging the drive and removing blade 25 by mechanism which is not shown. In another form, the change in film tension may be sensed by electric switch means.
Patent GB-1208288-A (GB)
Title: Semiconductive electro-luminescent element
IPC: H05B33/20
Filed: 1967-11-21
Abstract: 1,208,288. Glass mixtures; coating with glass. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 21 Nov., 1967 [2 Dec., 1966; 5 Dec., 1966; 7 Dec., 1966], No. 53004/67. Heading C1M. [Also in Division C4] A semiconductive electroluminescent layer includes an electroluminescent powder 103 (e.g. ZnS:Al, Cu), semi-conductive metal oxide powder 102 (e.g. SnO 2 , TiO 2 , Sb 2 O 5  and WO 3 ) which is highly reflective to the light emitted from the electro-luminescent powder intermingled with each other in a vitreous binding agent 101 which may be of composition SiO 2 - 20À01%; B 2 O 3 -28À58%; ZnO-18À33%; BaO -14À34%; CaO-0À74%; MgO-0À016%; Na 2 O-10À84%; K 2 O-4À05%; TiO 2 -2À31%; Al 2 O 3 -0À41%; Fe 2 O 3 -0À009%; and PbO- 0À012%. Ratios of the constituents, given by volume percentages, are metal oxide 10-20(15); E.L. powder 15-30 (20) and vitreous binding agent 65, with powder sizes preferably less than 5, 10 and 1 micron respectively. The powders mixed with a volatile liquor (diacetone or octyl alcohol) are deposited by silk screening and fired on a heatproof substrate such as a glass plate 105 with transparent electrode layer 104 of stannic oxide the substrate have similar coefficients of expansion.
Patent GB-1450101-A (GB)
Title: Method and apparatus for the production of films of plastics material and cellulosic stock
Inventor: CHARLES-MESSANCE FRANCOIS
IPC: B29C48/50
Filed: 1973-11-15
Abstract: 1450101 Spinnerette L A CELLOPHANE 15 Nov 1973 [15 Nov 1972] 53099/73 Heading B5B Cellulosic stock is extruded into a film by feeding through a conduit to a spinnerette having a slot shape orifice and a continnously moving rotating member in rolling or sliding contact with the interior surface of the conduit prior to the nozzle. For example the spinnerette may comprise (Fig. 1) a feed conduit 1, a ball 7 in contact with interior surface of conduit 1, rotatably mounted on shaft 2 and bearing 4, 5 and 6 and driven by means of the motion of the cellulosic stock past inclined vanes 3. Alternatively the ball or equivalent member may be propelled magnetically (see Fig. 2 not shown).
Patent GB-1337147-A (GB)
Title: Photoelectrophoretic imaging apparatus
Inventor: EGNACZAK R
IPC: G03G15/28
Filed: 1970-11-09
Abstract: 1337147 Optical system for photoelectrophoretic imaging XEROX CORP 9 Nov 1970 [14 Nov 1969] 53131/70 Headings G2A and G2H A photo-electric imaging apparatus comprises a transparent injecting electrode 5 formed as a section of the curved surface of a cylinder 1 rotatable along a circular path such that the outer surface thereof moves through an imaging zone b, optical projection means consisting of mirrors 21, 22 and 23 lens, 24 and lamps 33 with associated reflectors (not shown) for projecting an image of original 20 on platen 19 through cylinder 1 and electrode 5 to imaging zone B and means to move lamps 33 and mirror 21 about axis 18 so as to scan original 20 in synchronism with the movement of cylinder 1. Cylinder 1 contains therein a stationary housing 145 with openings 146 and 147 and lamps 9, 10 and 11 to aid cleaning of the injection electrode (See Specification 1335989)
Patent GB-1122599-A (GB)
Title: Automatic microscopic electronic data accumulator
IPC: G06T7/00
Filed: 1965-12-16
Abstract: 1,122,599. Selective signalling; counting apparatus. FEMCO Inc. 16 Dec., 1965 [23 Sept., 1965], No. 53475/65. Headings G4D and G4H. A microscope stage 8, Fig. 1, is reciprocated so as to effect a series of parallel scans of a mineral or biological specimen, the light transmitted through or reflected by the specimen being detected by a photomultiplier 5 to produce a corresponding variable analogue current. Amplifier 24 supplies a corresponding variable voltage to a bank of Schmidt triggers ST-1 to ST-20 set at different threshold levels. The instantaneous level of the output from amplifier 24 is characteristic of the part of the specimen being scanned, e.g. whether it is coal, pyrite, or the plastic matrix in which the specimen is embedded, and the triggers ST are so connected to gates G1-G20 that only that gate corresponding to the instantaneous voltage level passes clock pulses from source 13 to the corresponding point counter. These counters thus accumulate quantities representative of the proportions of different selected components in the specimen. The outputs of gates G1-G20 are also connected over cable J to a combining network 52-60, Fig. 20, and with mode control switch 34, Fig. 1, in position P, the total point counters in Fig. 2 register the total count and the total count for all levels below a given value. With switch 34 in position D, counts are obtained of the number of pyrite particles which are free, on the surface of coal, and embedded in coal. The outputs of gates G2, G3 and G4 in this case represent plastic matrix, coal and pyrite, respectively, and the outputs J21-J23 of these gates are supplied to a logic circuit 61-75, Fig. 2, which determines the sequences in which these signals occur, e.g. plastic matrix (J21) then pyrite (J23) then coal (J22) for surface pyrite, and for each such sequence a pulse is supplied to the appropriate free, surface or encased pyrite counter. Measurements of the size distribution of a selected component in the sample may be obtained as follows. The desired component level is selected by switch 51 at the top of Fig. 1 and the trains of pulses occurring for this level are applied over cable I to a binary counter BC1-BC12, Fig. 2, which counts the number of pulses in each train before being reset by a timing circuit 81-85 which detects the end of each train. Memory flip-flops FF101-FF109 are so connected that, at the end of each train, when the binary counter is reset, only one of gates 111-120 is enabled to supply a pulse to the associated P-level counter, the particular counter actuated corresponding to the size range in which the particle just scanned falls. With the microscope stage 8 being moved at 1 mm. per second, and with a clock pulse frequency of 1 kc./s., the size ranges are measured directly in microns.
Patent GB-1402843-A (GB)
Title: Window assembly for use with a stack monitor for monitoring  materials present in a flowing fluid
IPC: G01J3/457
Filed: 1972-07-03
Abstract: 1402843 Photo-electric inspection window ENVIRONMENTAL DATA CORP 3 July 1972 [1 July 1971] 54044/74 Divided out of 1402301 Heading G1A [Also in Division F4] In a window assembly for attachment to a flue so that gases in the flue may be optically analyzed, the window is carried on a slide and can be moved to a position where it can be cleaned. Fig. 1 shows the assembly fixed to a wall 111 of a flue so that gas in region 112 can be monitored. The window 132 is carried by a slide body shown in Fig. 5, and can be pulled from the assembly housing by a handle on the body. The body is sealed to the housing by O rings 133. In use a blower 116 blows air along the path of arrow 127 and this, together with a recess 126 in end-plate 124, provides non-turbulent flow in the region of the flue monitored.
Patent GB-1121478-A (GB)
Title: Improvements in the purification of pyromellitic dianhydride and/or acid
IPC: C07C51/573
Filed: 1965-12-22
Abstract: Pyromellitic dianhydride, pyromellitic acid or mixtures thereof, are purified by contacting the crude compound(s) with a non-reactive gas at a temperature between 75 DEG  and 275 DEG  C. for sufficient time to remove the impurities substantially completely, and recovering the substantially pure product.  The gas may be, for example, steam, air, carbon dioxide or nitrogen though when the dianhydride is the desired product the gas should not contain enough water or water vapour to convert the dianhydride to the acid.  In various processes for producing the pyromellitic dianhydride or pyromellitic acid, the crude product is obtained in a tail-gas stream already containing a non-reactive gas, such as air, which is suitable to act as a portion of, or all of the treating gas. The crude solids may be obtained, for example, by the air oxidation of durene in the presence of a niobium vanadate catalyst.
Patent GB-1176720-A (GB)
Title: Improvements in or relating to Zirconium Oxide-Aluminium Oxide Abrasive Grain.
Inventor: MUELLER RUDOLF
IPC: C04B35/111
Filed: 1967-12-01
Abstract: 1,176,720. Abrasive grain. DYNAMIT NOBEL A.G. 1 Dec., 1967 [6 Dec., 1966], No. 54798/67. Heading C4V. A method of increasing the grain toughness of a zirconium oxide-aluminium oxide abrasive grain comprises heating the grain at a temperature which is not high enough to melt or to agglomerate the grain. The heating may be at from 900‹ to 1300‹ C.
Patent GB-1435337-A (GB)
Title: Connector and ac/dc converter assembly for gyroscope
IPC: G01C19/10
Filed: 1973-11-27
Abstract: 1435337 Two-part couplings; converter construction MITSUBISHI PRECISION KK 27 Nov 1973 [27 Nov 1972] 55040/73 Headings H2E and H2F A combined connector and rectifier assembly comprises a housing 10, a plurality of female contacts 12 connected to the A.C. side of rectifier circuits 28-both contacts and circuits being disposed in the housing-and a locking screw 20 for locking the assembly to a complementary connector. The contacts 12 are embedded in a moulded insulator 14 and arranged in a circle coaxial with the cylindrical housing 10. The locking screw 20 has associated washers 22, 24 and passes through the insulator 14 to project from a recess 16 in the mating face. The opposite face has a circuit board 26 bonded thereto, the board carrying integrated circuits 28 and conductors (not shown) connecting the circuits and contacts. A cable 30 passes through a guide 32 in the housing and is connected to the D.C. side of the circuit board at one end and carries a connector 34 at the other end. A filler 36 covers the circuit board and fills the rear end of the housing.
Patent GB-1436367-A (GB)
Title: Process for vapour phase ammoxidation
IPC: B01J27/198
Filed: 1973-11-28
Abstract: 1436367 Vanadium oxide SUN VENTURES Inc 28 Nov 1973 [28 Nov 1972] 55095/73 Heading C1A [Also in Division C2] An ammoxidation catalyst-reactant composed of an oxide of vanadium intermediate between V 2 O 5  and V 2 O 3  and free of V 2 O 5  is reduced to V 2 O 3  during the ammoxidation reaction and is regenerated by oxidation with air or other oxygen source to V 2 O 5  and subsequently reduced for example with ammonia or SO2 to the stage intermediate between V 2 O 5  and V 2 O 3 .
Patent GB-1324934-A (GB)
Title: Belt-type clutch couplings
IPC: F16H61/664
Filed: 1971-11-29
Abstract: 1324934 Belt drive control ETABS DALOZ 29 Nov 1971 [4 Dec 1970] 55265/71 Heading F2L In a belt drive for a motor mower, or similar machine, a pulley 2 comprises a flange 2b secured to a shaft 7 having a wheel 12 at one end, and a flange 2a secured to a tube 3, coaxial with shaft 7, and having wheel 6 at one end, this pulley being driven by a belt 13 from a driving pulley 14, movable to tension the belt (or to do the converse) and allow transmission of drive. As shown in Fig. 2 the pulley 14 is supported in a bearing 16a moveable about a bearing 16b (by lever 24) supported by the vehicle chassis, a belt 20 driving pulley 14 via pulley 19, shaft 18, gears 18a and 23 and shaft 15. The tensioning means shown may be replaced by a roller or jockey adapted to bear on belt 13. The arrangement is such that with the belt 13 slack the wheels 6, 12 may be moved independently of one another.
Patent GB-1491899-A (GB)
Title: Signal generator arrangement
IPC: H04L7/033
Filed: 1974-12-23
Abstract: 1491899 Automatic frequency control TELECOMMUNICATIONS RADIOELECTRIQUES ET TELEPHONIQUES 23 Dec 1974 [27 Dec 1973] 55384/74 Heading H3A An arrangement for simultaneously producing two signals, one having a rising frequency and the other a falling frequency, the rise and fall being repeated in successive time slots comprises two voltage controlled oscillators 1, 1<SP>1</SP> controlled by a clock-synchronized control generator 3 and by respective phase control loops which include variable frequency dividers 7, 7<SP>1</SP>, the dividers also being controlled by the generator 3. The generator 3 includes a counter 12 driven from a clock 11 which provides a digital output to code converters 13, 13<SP>1</SP>, 14, 14<SP>1</SP>. The outputs from the code converters adjust divider 7 and oscillator 1 to sweep, for example, upwards in frequency and adjust divider 7' and oscillator 1<SP>1</SP> to sweep in the reverse direction the two frequencies being complementary. The loops may also include frequency changers 15, 15<SP>1</SP> whose second inputs are derived from standard oscillators 16, 16<SP>1</SP>. Fixed frequency dividers 20, 20' may be included in the outputs.
Patent GB-1121480-A (GB)
Title: Improvements in and relating to cranes
IPC: B66C23/70
Filed: 1965-12-31
Abstract: 1,121,480. Jib cranes on vehicles. K. F. T. ADOLFSSON. 31 Dec., 1965 [16 July, 1965; 4 Nov., 1965], No. 55437/65. Headings B8E and B8H. A crane post 1, rotatably and removably mounted in a socket 4 in a support 8 such as the platform of a lorry, pivotally supports at 10 a telescopic jib 2 which is extended and contracted by a screw-and-nut mechanism 17, 19. The screw 17 is rotated by a detachable hand lever 5 provided with sockets 32, 33 for engaging a head 21 formed on the screw 17 and heads 29 on an hydraulic pump 24 for extending a jib-luffing ram 3. An oil return valve 25 is provided with an actuating lever 34 for controlled lowering of the jib. The hydraulic system includes a pump by-pass check valve permitting passage of oil to but not from the ram cylinder whereby the unloaded jib may be raised manually to the required elevation.
Patent GB-1357320-A (GB)
Title: Liquid applicators
IPC: A01C23/02
Filed: 1970-11-21
Abstract: 1357320 Liquid applicator J PHILLIPS and J F PHILLIPS 4 Nov 1971 [21 Nov 1970] 55498/70 Heading A1D [Also in Division F1] A liquid applicator mounted on a tractor comprises, two cylinders 11, 19 with their piston rods 16, 18 flexibly joined at 17. As the piston in cylinder 19 is reciprocated by applying compressed air from a compressor powered by the tractor alternately to each end of the cylinder 19 by means of a manually operable control valve, liquid is alternately drawn from the reservoir 14 into cylinder 11 through an inlet valve and applied in predetermined amounts through an outlet valve in outlet 15.
Patent GB-1172234-A (GB)
Title: Display Device and Dressmaking Aid
Inventor: COOPER DONALD JOSEPH
IPC: A47F8/00
Filed: 1966-12-14
Abstract: 1,172,234. Displaying fabrics. AMERICAN CHARACTER Inc. 14 Dec., 1966, No. 55955/66. Heading A4T. [Also in Divisions A6 and G5] A dress display manikin has a figure formed of upper 56 and lower part 58 each pivoted on a support 66 passing through a backing 22 to a loading leaf spring 68, and each part pivotally loaded by leaf spring 70, whereby the upper part may be tilted forward by bend hand 84 and the lower part by means of a part 50 of the backing between the legs pivoting forwardly at 49 and carrying leg contacting cams. The backing is universally pivotable at 45 on a base 24. The backing has a serrated opening corresponding to the figure shape whereby cloth draped around the figure may be trapped between the figure and the opening. In a second embodiment, a rear handle allows the middle parts of the figure to be pushed forwardly. Various accessories may be used as a kit for the display to be used for teaching, or as a toy.
Patent GB-1306724-A (GB)
Title: Perhydroindanes and perhydronaphthalenes and a process for the manufacture thereof
IPC: C07D309/10
Filed: 1970-05-12
Abstract: 1306724 Perhydroindanes and perhydronaphthalenes and the production thereof F HOFFMANN-LA ROCHE & CO AG 12 May 1970 [13 May 1969] 56260/71 Divided out of 1306721 Heading C2C Compounds of the formula wherein Y is a grouping of the formula B is the remainder of a monocyclic or bicyclic aryl group which may carry one or more alkyl and/or alkoxy substituents, R1 is a primary C 1-5  alkyl group, R<SP>5</SP> is a hydrogen atom or an alkyl group, Z is a carbonyl group or R<SP>7</SP> is a hydrogen atom or an acyl group, R<SP>8</SP> is a hydrogen atom or an aliphatic hydrocarbyl group, and m is 1 or 2, and optical enantiomers thereof, may be obtained by oxidizing a perhydro compound of the formula wherein R<SP>2</SP> is a hydrogen atom or an alkyl or acyl group. The oxidation may be effected at 0-75‹ C. by employing, for example, chromic acid, potassium dichromate, potassium permanganate, or preferably a chromic acid/acetone/sulphuric acid mixture or a chromic acid/acetic acid mixture. The radical Z, when a hydroxymethylene group, may be protected by an acyl group.
Patent GB-1370140-A (GB)
Title: Connecting device
IPC: H05K3/40
Filed: 1971-12-07
Abstract: 1370140 Electric couplings WESTERN ELECTRIC CO Inc 7 Dec 1971 [7 Dec 1970] 56725/71 Heading H2E A connecting device, particularly for use with a cross-bar switch, comprises an insulating substrate having a pair of conductive paths supported on one side of the substrate, a conductive path supported on the other side of the substrate, and connected to each of the pair of conductive paths, portions of the substrate which support the pair of conductive paths thereon being formed with a fold whereby portions of the pair of conductive paths are displaced from the remaining portions, and each of the displaced portions of the conductive paths being formed to receive and engage a termination of an external circuit. A flexible, semirigid substrate 14, Fig. 2, has longitudinal conductors 16 supported on one surface and termination conductors 18, arranged in groups 17A-17L such that corresponding conductors in each group are connected to a common longitudinal conductor 16, supported on the other surface. The required interconnections are provided by through-holes 22. Holes 23 are punched through the conductors 18 and the substrate 14 adjacent one edge 19 of the connector and a fold 24 is provided in the substrate 14 to form a hump-like configuration. Due to this fold the holes 23 form saddles or recesses into which the external terminals are placed to make contact with the conductors 18, the connections being completed by soldering. The conductors 16 and 18 may be covered by insulating sheets 27 and 28 respectively, the saddles 26 being left exposed.
Patent GB-1314287-A (GB)
Title: Indexing device for a machine tool
IPC: B23F23/08
Filed: 1971-12-07
Abstract: 1314287 Gear-cutting; indexing SKODA NARODNI PODNIK 7 Dec 1971 [10 Dec 1970] 56853/71 Headings B3B and B3K An indexing device 8 for a gear-cutting machine comprises a transmission shaft 114 driven by drive means 101, and carrying an arresting disc 104 having a recess which co-operates with a catch 105, and further carrying a cam wheel 103, a roller follower 106 biased by a spring 115 being arranged to be selectively engaged with the cam wheel, and to actuate means 7 for controlling the speed of means 101, shaft 114 driving a stop drum 110 via gearing 108, 109, and a shaft 113, stops 111 on the drum co-operating with switches 112 controlling the movements of the machine, and of elements of the indexing device. In operation, when grinding a globoidal worm 9, by a grinding disc 15, catch 105 is withdrawn from the recess of disc 104 by actuation of an hydraulic cylinder 118, and through a stop 119 withdraws follower 106 from cam wheel 103. A throttle valve 107 is simultaneously actuated so that pressure is supplied to hydraulic motor 101 and drum 110 is rotated so that a selected row of stops 111 is brought into the operating field of a switch 112. The latter causes catch 105 to enter the recess in disc 104, follower 106 is again pressed into engagement with cam wheel 103, valve 107 is gradually closed and the speed of motor 101 is reduced, and stops, when catch 105 is fully entered into the recess. The table 14 on which grinding wheel 15 is mounted is driven by a mechanism 1 through a gear-box 2 and a worm and wheel 4, 5, and the work blank 9 is rotated from mechanism 1, 2 through a differential gear 7, the latter being also connected to the indexing device 8.
Patent GB-1287880-A (GB)
IPC: F02B53/00
Filed: 1970-12-01
Abstract: 1287880 Rotary I C engines J H TAYLOR 1 Dec 1970 [31 Dec 1969] 57008/70 Heading F1F A rotary I.C. engine comprises intermeshed parallel rotors 20, 22 in intersecting parallel bores 10, 12, and each having one radially slidable vane 36, maintained in contact with the surrounding bore 10, 12 by a stationary cam-groove 44, except at the mesh zone, where the cam 44 has a depressed part 122 which retracts the vanes; an inlet valve 60 opened by a cam lobe 82 on one of the rotors to admit pre-pressurized combustible mixture, such as oxygen or air and hydrogen or butane, to an inlet port 54 on one side of the mesh zone; and ignition means controlled by contacts 106 which are opened to produce a spark by the closing movement of the inlet valve 60. The combusted mixture is scavenged and exhausted at an opposite port 56. Opening of the inlet valve 80 is varied, to provide a throttle control, by a lever 94, shifting tangentially a rack-toothed cam follower 82 operating the valve. The rotor teeth provide sealing only and are relieved of load by meshing synchronizing gear-wheels 32 on the rotor shafts and installed in a separate end-housing. Mixture is supplied to the inlet valve by a compressor (130) driven by one of the rotor shafts. Several such arrangements may be arranged side-by-side, with 180 degree phase displacement, Fig.3 (not shown).