baber/WOPTO huggingface dataset:
Patent GB-978408-A (GB)
Title: Arrangement and process for electrostatic printing
IPC: G06K15/14
Filed: 1963-11-14
Abstract: 978,408. Printing-apparatus. ELECTROSTATIC PRINTING CORPORATION OF AMERICA. Nov. 14, 1963 [Dec. 17, 1962], No. 44989/63. Heading B6C. An electrostatic printing device comprises means for establishing an electric field between an electrode 10 and a conductive screen 12 having apertures 12A therein arranged in a pattern desired to be printed, a rotating brush 20 or other means for applying a mixture of two types of powder having opposite triboelectric polarity properties from a container 22 to the apertures 12A of the screen so that one of the powders passes through the apertures and on to a shell of paper 14 located between the electrodes 10, 12, and means 18 for reversing the polarity of the electrodes whereby the other powder passes through the apertures on to the paper 14. The powder particles may consist of a mixture of two differently coloured finely-ground resins and in the embodiment of Fig. 2 three stencils 30, 32, 34 are mounted on an endless belt 36 and are provided with conductive tabs 30A, 32A and 34A adapted to be engaged by a contact brush 72. The patterns in the screens may be complementary and may be printed in turn on a web 46 beneath the upper electrode 44 in different colours. The programme for the printing is automatically controlled by a circuit including a pulse generator 50, actuated on rotation of the belt rollers 38, 40, a counter 54, a relay 66 and a double-throw switch 68. Two rows of stencils may be arranged side-byside on the endless belt so as to pass beneath a pair of upper electrodes, Fig. 3 (not shown), and the web, if conductive, may itself form the upper electrode, Fig. 4 (not shown). In the embodiment of Fig. 6, two stencil screens 124 and 126 are arranged one on each side of a web 122 and the screens are formed with conductive portions 124A, 124B and 126A, 126B, the respective screen portions being separated by an insulating portion. Curved stencils may be used according to the invention to print on bottles, fruit, and curved wooden and ceramic surfaces.
Patent GB-968139-A (GB)
Title: Process for polymerizing olefinically unsaturated hydrocarbons in a fluidized bed
IPC: C08F10/00
Filed: 1962-11-28
Abstract: TiCl3 as a suspension in propane is made by mixing at room temperature, in an autoclave, 97 millimoles TiCl4, 400 ml. of liquid propane, 38 millimoles of aluminium triethyl, raising the temperature to 170 DEG  C. for 1 hour, cooling and diluting with propane. Specifications 666,529, 910,261 and 907,579 are referred to.ALSO:Polymers of olefinically unsaturated hydrocarbons are made by polymerizing a monomeric hydrocarbon in the presence of fluidised particles of a polymer of that hydrocarbon, and a catalyst made by forming a suspension of titanium and/or vanadium trihalide by reducing titanium and/or vanadium tetrahalides with an aluminium alkyl compound in a medium consisting chiefly of one or more inert hydrocarbons containing at most four carbon atoms thereby forming a suspension of the trihalide particles in the inert hydrocarbon, and subsequently mixing the trihalide particles with an aluminium alkyl and/or aluminium alkoxy compound. During the reduction of the tetrahalides the temperature may be raised above the critical temperature of the inert hydrocarbons, e.g. above 135 DEG C. to give the purple modification of TiCl3, and also pressures of between 80 and 150 atmospheres employed.  Olefinically unsaturated hydrocarbons mentioned are ethylene, propylene, butene-1, and butadiene.  In the examples the homopolymerization of propylene, and the copolymerization of ethylene and propylene are described.  The organometallic compounds exemplified are aluminium triethyl Al(C2H5)2Cl, and (C2H5)2AlOC2H5. Specifications 666,529, 907,579 and 910,261 are referred to.
Patent GB-1522252-A (GB)
Title: Apparatus for monitoring sodium concentration in a flow of mercury-sodium amalgam
IPC: G01N27/30
Filed: 1976-10-29
Abstract: 1522252 Sensor for sodium in amalgam SOCIETA ITALIANA RESINE SIR SpA 29 Oct 1976 [30 Oct 1975] 45124/76 Heading G1N A probe for determining sodium in a sodium/ mercury amalgam comprises a sodium betaalumina solid electrolyte 26 with the unknown material on one side and a sodium/mercury reference amalgam 24 on the other side and means (30, 34) contacting the amalgams. The reference amalgam is contained in insulating container 10, the solid electrolyte forming part of the wall thereof. The probe is preferably used for measuring sodium concentrations in the range 0À15-0À3 wt. per cent and the reference concentration is 0À01- 0À7 wt. per cent and differs by at least 0À05 wt. per cent from the expected sodium concentration.
Patent GB-1360656-A (GB)
Title: Lift truck attachments
IPC: B66F9/14
Filed: 1971-09-29
Abstract: 1360656 Masted lift trucks CLARK EQUIPMENT CO 29 Sept 1971 [5 Oct 1970] 45304/71 Heading B8H A forwardly projecting frame 50, rotatably supporting a fork assembly 90 about a vertical axis, is connected to the lifting carriage 24 by means of X-links 42, 44 which are arranged so as to permit the frame 50 to be moved from one side of the truck to the other. The links 42, 44 are pivoted at their lower ends to the lifting carriage and frame 50 respectively and are slidably connected at their upper ends to the frame 50 and to the lifting carriage, respectively, an hydraulic ram 80 being provided for actuating the links. The fork assembly 90 is rotatable by means of a pair of hydraulic rams 122, interconnected by a chain passing around a sprocket 127, and means (not shown) may be provided for raising and lowering the fork relative to the frame 50. The fork is tiltable under the action of an hydraulic ram, Fig. 8 (not shown). Shafts 150 152 mounted on the lifting carriage are provided with pinions 154, 155 engaging racks 156, 157 on the mast.
Patent GB-1391092-A (GB)
Title: Apparatus suitable for use in the production of ethylene dichloride
IPC: C07C17/38
Filed: 1972-05-19
Abstract: 1391092 Reactor ALLIED CHEMICAL CORP 19 May 1972 [20 May 1971] 45329/74 Divided out of 1391091 Heading B1X Apparatus suitable for use in the production of ethylene dichloride comprises a vertically disposed reaction zone 1 having at least two gas inlets 13, 15 positioned at or near the bottom of said zone, at least one gas outlet 19 positioned at or near the top of said zone, a first opening in the lower half of said zone and a second opening in the upper half of said zone, a vertically disposed externally cooled heat exchanger 3, and means 7 connecting the first opening in the reaction zone with the lower half of the heat exchanger and means 5 connecting the second opening in the reaction zone with the upper half of the heat exchanger, thereby forming a continuous path for the circulation of liquid from the reaction zone to the heat exchanger and thence back to the reactor again, said apparatus being free from mechanical means for circulating liquid along said continuous path. A rectification section 27 may be positioned above the reaction zone; vapours passing this are cooled in condenser 31. Condensate accumulates in separator 37; part is returned as reflux via line 41 to the rectification section and the remainder is withdrawn as the desired product at 25. There may be a level-sensing device 21 to keep the liquid level in the reaction zone above the upper conduit leading to the heat exchanger.
Patent GB-1443058-A (GB)
Title: Ignition systems for rotary engines
IPC: F02P7/063
Filed: 1973-10-02
Abstract: 1443058 Ignition systems; timing ignition NIPPONDENSO CO Ltd 2 Oct 1973 45927/73 Heading F1B [Also in Division H1N] An ignition system for a rotary internal combustion engine comprises a first ignition signal generator 5, a first ignition coil 3 controlled by the first ignition signal generator and a first pair of sparking plugs Ta, Tb connected with the first ignition coil, a second ignition signal generator 6 operable independently of the first ignition signal generator to generate ignition signals at time instants different from those of the first ignition signal generator, a second ignition coil 4 controlled by the second ignition signal generator and a second pair of sparking plugs La, Lb connected in series with the second ignition coil, first ignition time control means (not shown) coupled to the first ignition signal generator for varying the time of ignition signal generation by the first ignition signal generator in accordance with an operating condition of the engine and second ignition time control means (not shown) coupled to the second ignition signal generator for varying the time of ignition signal generation by the second ignition signal generator in accordance with an operating condition of the engine. As shown a distributer brush 11a is connected between the first ignition coil and the first pair of sparking plugs but the distributer may be omitted although the ignition signal generators are shown as circuit breakers 5, 6 it is stated that electromagnetic signal generators associated with transistors or thyristors may be employed. The construction of a distributer assembly comprising coaxially arranged circuit breakers 5, 6 is described with reference to Fig. 2, (not shown). The timing is controlled centrifugally and by engine vacuum.
Patent GB-1527867-A (GB)
Title: Device for processing an electric signal using elastic surface waves
IPC: H03H9/25
Filed: 1975-11-05
Abstract: 1527867 Signal processors employing surface waves THOMSON-CSF 5 Nov 1975 [8 Nov 1974] 45975/75 Heading H3U An initial electrical signal is processed by converting it into a surface wave by feeding it to a transducer 5 on the piezoelectric substrate 1 of a processor device, applying a second signal to the device thus producing a second wave which interacts with the surface wave to provide'a timeindependent spatial potential pattern which is then fixed; and finally applying a third signal to the device thus producing a third wave which interacts with the pattern to produce a resulting wave representing the correlation or convolution function of the third signal and the pattern; the second, third and resulting waves being in each case either elastic or electromagnetic. If they are elastic they are emitted or received by transducers 5, 6, and if electromagnetic by plane electrodes 2, 3, Fig. 1, or by combs 20, 30, Fig. 7. The pattern is fixed by a layer 4, which may be separate from the substrate (Fig. 4, not shown) or integrated therewith, Fig. 7. The fixing mechanism may be charge storage in junctions and associated capacitors, trapping electrons in a semi-conductor, or modification of surface charge; Specification 1,516,400 is referred to in this respect. In the device of Fig. 1 the second signal is either a pulse T, applied to electrodes 2, 3 subsequently to the initial signal, or a known signal U applied to surface wave transducer 6 simultaneously with the initial signal. If T is a suitable linearly frequencymodulated signal the pattern produced may be the Fourier transform of the initial signal. The third signal may be converted into an elastic wave J by either transducer 5 or 6, or into an electromagnetic wave K by electrodes 2, 3. Waves J and K have a frequency corresponding to the spatial modulation of the pattern, and respectively produce an electromagnetic or elastic resulting wave. Wave J may produce a resulting wave which reproduces the initial signal S. In a modification, Fig. 6 (not shown) additional surface wave transducers (7, 8) of a different pitch from transducers 5, 6 are provided. With this arrangement third waves N 1 , N 2  are emitted from transducers with pitches different from each other and different from but related to the spatial modulation of the pattern, so as to produce an electromagnetic resulting wave. In the device of Fig. 7, the surface wave emitted by transducer 5 and representing the initial signal has a frequency # and the second signal is converted into an electromagnetic wave by combs 20, 30. The pattern produced is interacted with a surface wave of frequency # 1  representing the third signal to provide a resulting surface wave also of frequency # 1 .
Patent GB-1362791-A (GB)
Title: Pallets
IPC: B65D19/06
Filed: 1971-08-24
Abstract: 1362791 Load handling pallets F J BARKER 24 Aug 1971 [28 Sept 1970] 46031/70 Heading B8H A pallet comprises a base 11 with upstanding corner posts 12 to which are secured fixed end walls 14 and a series of removable planks along one of the other sides. The fourth side is left open. In use a series of pallets may be stacked one upon the other yet the planks, secured at opposite ends by a bracket 16 and a catch 17 to respective posts, may be removed to provide access to the interior of the pallet without disturbing the stacked pallet.
Patent GB-1363486-A (GB)
Title: Electrical appliances
IPC: H05B3/34
Filed: 1971-10-05
Abstract: 1363486 Electric blanket element controllers NORTHERN ELECTRIC CO 5 Oct 1971 [22 March 1971] 46287/71 Heading H5H [Also in Division H1] An electric blanket has a liquid-tight temperature control combined with an on/off switch situated on the blanket for example replacing one of the thermostats normally provided to prevent overheating. The top blanket cover 11a, Fig. 2, is gripped by flanges 27, 26 on the top and bottom of the control housing which are sealed together. An 0-ring 33 prevents moisture entering the control unit during washing. The control unit, Fig. 3, comprises a camoperated bimetallic contact 46 opposite a fixed contact 48 to set the temperature and a switch 39 operated by projection 38. A light 16 may be used to indicate when the switch 39 is closed, i.e. when the projection 38 is not in contact with the pin 44. A plug 18, Fig. 1 (not shown), is provided on the blanket remote from the control unit to connect a power supply to the blanket in such a position so as to reduce the chances of the user fouling the power cable.
Patent GB-1099199-A (GB)
Title: Directional light antiglare lamp
Inventor: KOROS SANDOR
IPC: F21V7/10
Filed: 1965-11-03
Abstract: 1,099,199. Sealed beam lamps. MEDICOR MUVEK. Nov. 3, 1965, No. 46573/65. Heading H1F. [Also in Division F4] A lamp which may be of the sealed beam type, consists of a reflecting concave surface of rotation 10a, a concave spherical counter reflecting surface 11a of smaller diameter, the focus of the surface 10 coniciding with the centre of the sphere, a source of light 12 situated at the point of coincidence, a prism 13 arranged in the path of rays reflected from the surface 10a, integral with the member 11 carrying the surface 11a and sealed to the member 10 carrying the surface 10a so as to form a vacuum vessel, and a support plate 16 for the light source 12 sealed into a central passage in the member 10, the support structure for the source 12 and/or at least part of the surface 16a and/or the support plate and/or the sealing means between the members 10 and 11 having light-absorbing material applied thereto. Parts of the prism 13 may be inclined at different angles to produce an asymmetric beam. The prism 13 may have grooves of semi-circular cross-section in parallel straight lines or as concentric circles on the outer surface, the radii of the grooves decreasing from the central part outwards. The light source may be a flattened coiled-coil of tungsten wire the ends of which are coiled round leads 19, 20 secured to lead-in wires 17, 18, the parts of which within the lamp being blackened to avoid undesired reflections.
Patent GB-1091961-A (GB)
Title: A process for preparation of unsaturated aldehydes and acids
IPC: B01J27/057
Filed: 1964-11-17
Abstract: Propylene and isobutylene and mixtures thereof are converted to the corresponding unsaturated aldehydes and/or acids by contacting at an elevated temperature a gaseous feed mixture of one or both of the unsaturated hydrocarbons and oxygen with a catalyst containing as essential ingredients:  (a) molybdenum; (b) metallic tellurium, tellurium monoxide, tellurium dioxide or an alloy of tellurium; (c) oxygen; and (d) at least one of the metals copper, silver, cadmium, zinc, titanium, tin, lead, antimony, vanadium and nickel.  The oxygen in the starting mixture may be in the form of air and, if desired, a saturated hydrocarbon may be present.  The catalyst may also contain phosphorus as an acid promoter.  If desired the catalyst may be supported in a carrier, e.g. silica, alumina, silicon carbide.ALSO:A catalyst for the oxidation of propylene or isobutylene to the corresponding unsaturated aldehyde or acid contains (a) molybdenum, (b) metallic tellurium, tellurium monoxide, tellurium dioxide or an alloy of tellurium; (c) oxygen; and (d) at least one of the metals copper, silver, cadmium, zinc, titanium, tin, lead, antimony, vanadium and nickel.  The catalyst may also contain 0.1-1.5 parts by weight of phosphorus as an acid promoter and may also be supported on a carrier for example silica, alumina or silicon carbide.
Patent GB-984978-A (GB)
Title: Fluid flow sensing means
IPC: F04B49/10
Filed: 1962-12-11
Abstract: 984,978. Regulating positive displacement and centrifugal pumps and compressors. SCULLY SIGNAL CO. Dec. 11, 1962 [Dec. 21, 1961], No. 46649/62. Headings F1A, F1C, F1F and F1N. [Also in Division H2] A flow sensitive device for controlling the speed of an I.C. engine driving a pump or compressor, e.g. of positive displacement or centrifugal type, comprises a flexible vane 92 disposed in the pump delivery line and controlling a switch 108 in the circuit of a solenoid controlling the engine throttle. Vane 92 is carried by a lever 86 on a shaft 60 mounted in antifriction bearings and carrying a switch operating arm 76 loaded by a spring 106 of adjustable tension. The housing 42 carrying the vane and switch is angularly adjustable in pipe union 36 and is clamped in position by a ring 48. Arrows 124 indicate the alignment of the vane. In operation, a valved nozzle at the end of the delivery line is connected to a tank to be filled, the I.C. engine being in its idling position and a pump by-pass circuit being in operation for a positive displacement pump. When the nozzle valve is opened, the flow through the pipe is sufficient to move vane 92 to operate the switch and hence open the engine throttle. When the nozzle valve is closed, the vane is returned by its spring to open the switch and return the engine speed to idling. A member 96 on lever 86 supports the vane when in its full flow position.
Patent GB-1370427-A (GB)
Title: Flanged pulley and a method of making the same
IPC: B29C65/56
Filed: 1971-11-04
Abstract: 1370427 Moulding pulleys DAVALL GEAR CO Ltd 4 Nov 1971 [1 Oct 1970] 46725/70 Heading B5A [Also in Division F2] A pulley is moulded, e.g. by injection moulding nylon or acetal resin, in two parts 2, 3 each carrying one of the flanges and one part 2 being moulded with an insert 1, the two parts being subsequently bonded together. In Fig. 1, part 2 has teeth 4 and is fitted on to a metal shaft 1 which may be knurled to provide a key. The part 3 is received in a rebate 8 of part 2 and has an annular bead or a number of pips which melt during ultrasonic welding together of the parts 2, 3. In Figs. 3 and 4 part 2 has annular grooves 14, 15 and an annular projection 9 which when contacted by an ultrasonic or heat welding tool flows into the space left by a chamfer 10 of part 3 to retain that part. Specification 1,370,428 is referred to.
Patent GB-1360454-A (GB)
Title: Clutch or brake device for an automatic transmission
IPC: F16D55/40
Filed: 1971-10-08
Abstract: 1360454 Friction clutches; multidisc brakes AUTOMOBILES PEUGEOT and REGIE NATIONALE DES USINES RENAULT 8 Oct 1971 [4 Nov 1970] 46921/71 Headings F2C and F2E  A clutch or brake device E1 in which interleaving discs 3, 4 are splined to the two elements 1, 5 to be coupled has a reaction plate 7 welded (by localized or spot welds) to one of the elements, the discs 3, 4 being compressed between the clutch or brake operating member and the reaction plate. Shown are two clutches, E 1  and E 2 , operated by pistons 6 and 11 respectively to compress the discs against the reaction plates 7 and 12 respectively. The reaction plates may have teeth adapted to conform to the splines of the elements, and be spot welded at every second or third tooth, or the plates may not have teeth, but be welded at every second or third spline of the drum shaped element (1 or 2). The splined elements 1 and 2 are of pressed out sheet metal.
Patent GB-1451945-A (GB)
Title: Thermoplastic moulding compositions
IPC: C08K5/42
Filed: 1973-10-09
Abstract: For the preparation of thermoplastic moulding compositions having a high rate of crystallisation, 0.05-1.5 % by weight of an alkali metal salt or alkaline earth metal salt of an organic sulphonic acid of the given formula (I) such as, for example, the sodium salt of isethionic acid or acetyl-isethionic acid, of taurine, of N-methyl-N-palmitoyltauric acid or of an alkanesulphonic acid is added to a linear polyester of the polyethylene terephthalate type. The addition of such sulphonates, which can be carried out before, during or after the preparation of the polyester, makes it possible, owing to their double nucleating and lubricating action, to shorten the injection-moulding cycle and hence to increase the production rate and, furthermore, makes it possible to obtain manufactured products having dimensional stability and a high heat distortion point. In this way, the addition of solid inorganic substances and hence the appearance of agglomerates and cracks, which would lead to a consequent reduction in the resilience of the finished objects, are completely avoided. The technical and application characteristics of the polyester are not comprised by the addition of such sulphonates and permit a significant increase in the production rate, with the finished products having improved mechanical characteristics (resilience). R X R'SO3Me (I> where:     Me = alkali metal or alkaline earth metal; R = hydrogen atom or an alkyl, aryl or arylalkyl radical having 1 to 20 carbon atoms; R' = linear or branched alkylene radical having 1 or more carbon atoms, which can contain polar groups such as -COOR'' or -CH2COOR'' in its branches,   X = a -CH2 group or a polar group such as <IMAGE> where R'' is a hydrocarbon radical.r
Patent GB-1039989-A (GB)
Title: Ethylene/vinyl acetate copolymer-petroleum wax compositions
IPC: D21H19/18
Filed: 1964-11-19
Abstract: A coating composition comprises an ethylene/vinyl acetate copolymer, having a vinyl acetate content of 25-35%, and petroleum wax, for example paraffin wax with or without microcrystalline wax, said copolymer being 25-40 wt. per cent of the composition and having a melt index of 1-10, said wax being 40-63 wt. per cent of the composition, and 12-20 wt. per cent of the composition being an alpha-methyl styrene/vinyl toluene copolymer having a vinyl toluene content of 35-85% and a ball and ring softening point of 110-150 DEG C.  The composition may also contain inert filler, pigment, dye, or antioxidant.ALSO:A coating composition comprises (1) 25-40% of an ethylene/vinyl acetate copolymer having a melt index of 1-10 and having a vinyl acetate content of 25-35%, (2) 40-63% of a petroleum wax, for example paraffin wax with or without microcrystalline wax, and (3) 12-20 wt. per cent of an alpha-methyl styrene/vinyl toluene copolymer having a vinyl toluene content of 35-85% and a ball and ring softening point of 110-150 DEG  C.