baber/WOPTO huggingface dataset:
Patent GB-901421-A (GB)
Title: Improvements relating to electrical image intensifying devices
Inventor: COOPER DAVID HARVEY
IPC: H01J29/39
Filed: 1959-10-29
Abstract: 901,421. Cathode-ray tubes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 25, 1960 [Oct. 29, 1959; Jan. 13, 1960], Nos. 36770/59 and 1300/60. Class 39 (1). A screen, for use in converting an imagecarrying beam of light, X-rays or electrons into an electrical signal, comprises a conductive plate 3 extending over part of a first surface of an insulating, supporting membrane 2, a conductor extending from plate 3 through a hole 5 in membrane 2 to a terminal 7 located on the second surface of membrane 2, and a layer 4 of material exhibiting photo-conductivity, or bombardment induced conductivity, deposited over plate 3 and over the uncovered portion of the first surface of membrane 2. As shown, a transparent rectangular plate 3 of aluminium or bismuth is provided on a transparent membrane 2 of a polyester fibre material which is stretched over a metal support ring 1. Holes 5, 6 formed in ears extending from opposite corners of plate 3 are filled with silver paint and covered with outwardly extending terminals 7, 8. Opposite the holes 5, 6, on the free surface of the layer 4 of amorphous selenium, are provided small layers 13, 14, or an annular layer, of insulating material. An annular coating 15 of aluminium is provided on the layer 4, outside the area of plate 3, to prevent image distortion at the edge of the area of layer 4 which is scanned by a low velocity electron beam. In an alternative arrangement, Figs. 3, 4 (not shown), the conductive plate 3 is formed with tabs extending outwardly from the middle of its longest sides, these tabs being connected as before to terminals on the second surface of membrane 2. The terminals may be connected by a semicircular conductive strip on the second surface of membrane 2.
Patent GB-1174147-A (GB)
Title: Process for Removing Hydrogen Chloride from Vinyl Chloride
Inventor: ROLAND KLAUS
IPC: C07C17/38
Filed: 1967-08-11
Abstract: 1,174,147. Vinyl chloride. INSTITUT FUR CHEMIEANLAGEN. 11 Aug., 1967, No. 37022/67. Heading C2C.   Vinyl chloride is purified by removing therefrom hydrogen chloride and high boiling impurities by subjecting crude vinyl chloride in vapour form to (a) a washing step in which it is contacted with water or hydrochloric acid and optionally a neutralization step in which any remaining hydrogen chloride is removed, e.g. by contact with alkali, and (b) a distillation step in which vinyl chloride and low-boiling impurities are separated from high-boiling impurities, the steps being combined partly or wholly by contacting the crude vinyl chloride during step (a), at least during the washing step, with a countercurrent flow of liquid vinyl chloride enriched with high-boiling impurities obtained as reflux in step (b). In Fig. 1, crude vinyl chloride supplied at 1 is washed in absorption tower 2, scrubbed with alkali in neutralization tower 7 and fractionated in column 6, condensed vinyl chloride being supplied thereto by line 12 and the vinyl chloride containing high boiling impurities being returned from the bottom of column 6 to the top of tower 2. Alternatively (Fig. 2, not shown), the reflux from the fractionation may be returned to the absorption tower via the neutralization tower or (Fig. 3, not shown) the absorption and fractionation may be effected in a single tower. The hydrochloric acid obtained as effluent from the washing stage may be used for drying acetylene or other hydrocarbons used in the production of vinyl chloride.
Patent GB-1391267-A (GB)
Title: Step-by-step linear adjustment devices
IPC: F15B11/12
Filed: 1971-08-06
Abstract: 1391267 Pneumatic actuators; fluidic circuits PLESSEY CO Ltd 14 July 1972 [6 Aug 1971]  37108/71 Headings F1D and F1P A pneumatic actuator has an axial rod c, Fig. 1, which is freely movable when pistons a, b are in the position shown. If air is admitted through a port q, piston a is moved to the right and a boss s on the piston with a sloping face h tilts a washer g so that it grips the rod c and moves it to the right with the piston a. This movement continues until a sleeve i abuts the right hand washer g, thus causing the tilted washer to assume a vertical position in which it is a sliding bit on the rod c. Movement of the rod c ceases, and when the air supply is interrupted the piston a and washer g returns to their original positions. Movement of the rod in the opposite direction is effected by the piston b. A fluidic circuit for producing a number of successive steps of the rod c is shown in Fig. 2. Solenoid valves B, C control flow to ports q, r. Air-flows through the power jet of one of fluidic elements E 1 , E 2  and also charges a pressure reservoir F. When pressure has built up in the reservoir F the flow through the jet is deflected into a vent outlet VG. This allows the actuated piston to return to its rest position. When pressure in the reservoir has dropped the cycle is repeated. A counter H either counts the pulses or terminates the stream of pulses after a predetermined number have been produced.
Patent GB-911176-A (GB)
Title: Sheet inspection method and apparatus
Inventor: FLOOK WILLIAM MOWAT
IPC: D02H13/00
Filed: 1960-10-28
Abstract: 911,176. Counters. DU PONT DE NEMOURS & CO., E.I. Oct. 28, 1960, No. 37120/60. Class 106 (1). [Also in Groups IX and XL (b)] The invention relates to apparatus for the inspection of a travelling sheet of material and is described with reference to the inspection of a sheet of a considerable number of heavy denier yarns being wound on to a beam. '' Fluff ball "  defects or slubs are detected and may either be counted or stop the beaming so that they may be cut out. It is a feature of the invention that weavers' knots, which are unobjectionable and occur frequently, do not operate the detection device. To this end sensing devices are provided inspecting the sheet across two discrete regions spaced apart in the direction of travel of the sheet a sufficient distance for weavers' knots to clear one region before entering the second. This spacing, for the application described, may be a quarter of an inch which is small enough for true defects to affect both sensing devices at once and thus provide an indication. In a first embodiment the yarns 7 are carried across the open top of a trough 4 provided with a fluorescent tube light source (not shown) fed from a direct current supply. Photo-multiplier 27 views a region 17 across the yarns and closely adjacent the upper surface thereof through an aperture in mask 26, collimating lens 25, mask 24 and silvered surface of prism 23. A light trap 19 comprising an internally blackened box with a suitable aperture is provided at the end of region 17. A second photo-multiplier 34 views a second region 18, spaced forwardly along the direction of yarn travel to region 17, through an identical optical system. The region 18 is preferably immediately below the yarns (Fig. 4, not shown), but may be on the same side of them as region 17. It is assumed that sufficient light passes up between the yarns to illuminate defects viewed on the upper side of the sheet; if this is not the case a duplicate fluorescent tube above the yarns must be provided. As described in detail with reference to Fig. 5 (not shown), the amplified photomultiplier outputs are applied to a double-triode coincidence detector controlling a thyratron. Relays in the thyratron output circuit control a counter and the circuit of the motor driving the beam. To prevent local deterioration of the fluorescent tube phosphors it is proposed to reverse the supply polarity every hour and the circuit incorporates a disabling device preventing a spurious indication being given when this is done. To increase sensitivity the regions 17 and 18 may each be split so that one half is effective for viewing the top side of the yarn sheet and the other half the lower side (Fig. 6, not shown). In an alternative arrangement the fluorescent tubes are not used and the light trap 19 replaced by a unit 106 directing collimated beams of light from lamps 107, 108 along regions 17 and 18 respectively. In this embodiment defects cause a reduction and not an increase in the light received by the photo-multipliers.
Patent GB-1363350-A (GB)
Title: Hot coke receptacle for horizontal coke-oven batteries
IPC: C10B39/10
Filed: 1972-08-09
Abstract: 1363350 Coke quenching cars HEINRICH KOPPERS GmbH 9 Aug 1972 [17 Aug 1971] 37125/72 Heading F4B Coke from a horizontal coke oven battery is discharged into a receptacle mounted on a chassis 2 having wheels 3 which run on tracks 4 along the coke side of the battery. The chassis 2 supports an annular rotary drum 6 disposed within a casing 11, the drum having a U-shaped cross-section constituted by polyhedral shell 7 and side flanges 8, and the axis 5 of the drum being parallel with the axes of the ovens in the battery. Coke form the oven discharged into the drum through coke guides (14) and a charging opening in the casing 11 is carried by the rotation of the drum underneath nozzles 21 spraying water from a tank 22 to quench the coke. The interior of the drum 6 is also provided with partitions 24 dividing the drum into pockets, which when the drum is rotated carry coke to the upper part of the drum. The coke falls from the pockets onto a plate 25 which has a trap door 26, the coke being redirected to the bottom of the drum when the trap door is closed, but directed to a discharge shoot 27 extending to a discharge opening (28) in the casing 11 when the trap door is open.
Patent GB-522925-A (GB)
Title: Recovery of whale oil from glue waters and "graxes" resulting from the digestion of whale materials with steam under pressure in ordinary or rotary digesters
IPC: C11B1/00
Filed: 1938-12-21
Abstract: 522,925. Extracting whale oil. AKTIEBOLAGET SEPARATOR., LEVER BROS, & UNILEVER, Ltd., and BOSTOCK, B. R. Dec. 21, 1938, No. 37156. [Class 91] In the recovery of whale oil by straining and centrifuging " glue waters" or " graxes " obtained in the steam treatment of the flesh, blubber, or bones in " pot " or rotary digesters, the strainer or strainers are self-cleaning and the only or first centrifuge is of the kind continuously or intermittently discharging the separated solids. For example, oil and grax pass from a digester 1 to an oil-separator 13. The separated oil is treated in ordinary centrifugal separators or clarifiers. The grax is forced to collecting tanks 3 and run continuously through coarse self-cleaning revolving strainers 4, a buffer tank 6, and finer selfcleaning vibrating strainers 7 to a centrifugal separator or concentrator 10 arranged for continuous or intermittent discharge of separated solids ; the oil is discharged to a tank 11 and passed through an ordinary centrifugal clarifier 12. The solids separated by the strainers are conveyed to meat presses 5 ; glue water therefrom is returned by a pipe 9 to the strainers 4 or 7. Specifications 277,311, [Class 91], and 356,680 are referred to.
Patent GB-1504485-A (GB)
Title: Apparatus for dressing grinding wheels
IPC: B24B53/08
Filed: 1976-09-08
Abstract: The dressing apparatus has two machining tools such as diamond charged wires (44, 46) which are arranged parallel to each other, are held, under tensile stress and tangentially with respect to the grinding wheel, by means of their ends in in each case one retaining device (48) of a carrier (34, 36, 38) and can be driven about their longitudinal axis. By means of a guiding device (16), the dressing apparatus for dressing grinding wheels can be controlled analogously to the contour of the grinding wheel profile to be dressed, one of the two wires being alternately in the operating position. It is possible to exchange a used wire while the other wire is in use. As a result, shutdown times can be largely avoided. <IMAGE>
Patent GB-1519005-A (GB)
Title: Method and device for regulating the operational behaviour of an internal combustion engine
IPC: F02M25/07
Filed: 1975-09-11
Abstract: 1519005 Measuring gas concentration electrically ROBERT BOSCH GmbH 11 Sept 1975 [4 Sept 1974] 37327/75 Heading G1N [Also in Division G3] In an I.C. engine, ionic currents are measured in the combustion chamber and used to control an engine parameter (see Division G2-3). As shown the sensor is incorporated in a sparking plug having two ignition electrodes 16, 17 and two sensing electrodes 18, 19. Ionic currents in the plug are sensed, the time taken for a flame front to pass between the sensing electrodes being indicative of the engine air-fuel ratio.
Patent GB-771437-A (GB)
Title: Improvements in or relating to hydraulic presses
IPC: E03B3/11
Filed: 1955-12-30
Abstract: 771,437. Boring earth. MANNESMANN AKT.-GES. Dec. 30, 1955 [Jan. 3, 1955], No. 37487/55. Class 85. An hydraulic press is adapted to force pipes or the like into the ground or against a resistance. A liner 3 is introduced into the ground 4 through an opening I in a shaft wall 2 and anchored against the wall 2 by concrete 16. The press is bolted to the liner 3. The press comprises an outer cylinder 5 and an inner cylinder 6 with an annular piston 9 sliding in the annulus between the cylinders 5, 6, which space is closed at its ends by plates 7, 8. A tubular piston rod 10 is a sliding fit over the inner cylinder 6 and has gripping means 11 at one end to grip a pipe 12 or the like which is slid through the inner cylinder 6. Fluid is forced into the space 15 to act on the piston 9 and advance the tube 12 into the ground 4.
Patent GB-1406565-A (GB)
Title: Tube expander
IPC: B21D41/02
Filed: 1973-08-08
Abstract: 1406565 Tube expanders MANNESMANN-MEER AG 8 Aug 1973 [24 Nov 1972] 37687/73 Heading B3J A tube expander including segments 2 slidable along a frusto-pyramidal body 1 has tapering guide rails 3 fixed at the angles 4 of the body, opposed sides of adjacent rail 3 being parallel and overlying bars 8 on the segments. The segments 2 may be in two parts 7, 11 connected by screws 14.
Patent GB-964056-A (GB)
Title: Improvements in or relating to articles of furniture
IPC: A47C19/00
Filed: 1962-10-05
Abstract: 964,056. Moulded resin furniture frames. R. BOFINGER. Oct. 5, 1962 [Oct. 6, 1961], No. 37746/62. Headings A4J and A4W. [Also in Division B5] Articles of furniture, e.g. seats and beds of synthetic plastic material such as polyester resin, comprising two superimposed layers 1, 2 of glass fibre reinforced synthetic plastics material and an intermediate layer 3 of a light weight core, e.g. a paper honeycomb or a hand foam core, have the two layers 1, 2 connected together only in the region of the edges and the feet of the articles. A bed is shown with layers 1, 2 connected around peripheral flanged edges 4, 5 and the lower end of the feet. The feet are formed from trumpet shaped projection 1<SP>1</SP>, 2<SP>1</SP> closed at their ends by rubber plugs
Patent GB-781645-A (GB)
Title: Depth control means for a rotary cultivating machine
Inventor: HOWARD ALFRED CLIFFORD
IPC: A01B33/08
Filed: 1954-12-31
Abstract: 781,645. Agricultural implements. ROTARY HOES, Ltd. Dec. 7, 1955 [Dec. 31, 1954], No. 37764/54. Class 6(1). A rotary cultivator supported from or towed by a tractor and provided with a transverse rotor 17 covered by a shield 24 and driven from the power take-off shaft of the tractor and raised clear of the ground by a lifting mechanism is characterized in that the depth of cultivation of the rotor is controlled by ground engaging means mounted on a hinged rear bottom portion 24a of the shield 24 and adjusted by a strut 30 adjustably connected to a stationary boom 31 on the machine. As shown the ground engaging means comprises a renewable trailing edge portion 29. Alternatively the portion 29 may be replaced by a transverse roller or two narrow skids that run on the undisturbed soil layer below the cultivated earth. The rotor is driven from a power shaft enclosed in a tube 11. Wheels 18 are provided, the axle of which is connected to a lever 19 by means of a link 20, the lever 19 being acted upon by a manually operable device 21 or alternatively a hydraulic device 22 to pivot the rotor about the axis 23 to raise the rotor clear of the ground. Specification 781,646 is referred to.
Patent GB-900375-A (GB)
Title: Improvements in or relating to washing machines
IPC: D06F34/28
Filed: 1960-11-03
Abstract: 900,375. Washing-machines. GENERAL MOTORS-HOLDEN'S PROPRIETARY Ltd. Nov. 3, 1960 [Nov. 3, 1959], No. 37791/60. Class 138 (2). A washing-machine has a manually-adjustable control whereby a cold water valve is either intermittently operated at a manually selectable rate to admit cold water for mixing with hot water for a warm wash or continuously operable to admit cold water for a cold wash. In the examples hot and cold water valves are actuated by solenoids 3 and 4 respectively controlled by a timer having a moving contact 2. An adjustable automatic intermittent switch 11 is associated with either or each of the solenoids 3 and/or 4, and means are provided for manually preselecting the final temperature of the water for both washing and rinsing. The arrangement may provide (i) a constant supply of hot or cold water, (ii) a constant supply of hot water plus an intermittent supply of cold, (iii) a constant supply of cold water plus intermittent hot, or (iv) an intermittent supply of both hot and cold water. The circuit shown in Fig. 2 provides cold, warm or hot water for washing and cold or warm water for rinsing. The temperature of the warm water is controlled by a cam (not shown) exerting a biasing action on the bimetallic element 11b of the intermittent switch 11. Setting of a preselector switch 6a to " warm " energizes a switch 9 which closes its contacts. Solenoid 3 is thus energized continuously (for hot water) through switch 9, and solenoid 4 is energized intermittently (for cold water) through switches 9 and 11.
Patent GB-367085-A (GB)
Title: Improvement in ammeters
IPC: G01R15/00
Filed: 1930-12-15
Abstract: 367,085. Current and pressure meters. WESTON ELECTRICAL INSTRUMENT CORPORATION, 614, Frelinghuysen Avenue, Newark, New Jersey, U.S.A. Dec. 15, 1930, No. 37808. Convention date, Oct. 30. [Class 37.] A multi-range ammeter, or volt-ammeter, particularly of the moving-coil type, wherein switch contacts and resistance shunts are provided for the various ranges, has individual fuses for each adjustment of the current meter, and provision is made in the instrument casing for housing spare fuses. As shown, the ammeter fuses Fl .. F4 are mounted between the switch contacts C<1> .. C<4> and a bus-bar 26, a voltmeter fuse 17 being provided. S<1> .. S<4> are the shunt resistances and 13 represents series resistances in the volts circuit. The spare ammeter fuses are carried in recesses 36 by springs 37, spare voltmeter fuses 39 being mounted on springs 38. The cover parts 31 and 34 are hinged to the main casing 30, the part 34 being secured by a spring clip 35.
Patent GB-1517867-A (GB)
Title: Hydraulic control valve and system
IPC: F03B7/00
Filed: 1976-09-13
Abstract: 1517867 Valves DEERE & CO 13 Sept 1976 [12 Sept 1975] 37889/76 Heading F2V A valve comprises a body having a bore 26 which is intersected by first and second inputs 28, 30, first and second outputs 42, 44 and an exhaust 36, together with a spool 62 which slides within the bore 26 and has two recesses 70 which respectively connect the inputs 28, 30 with the outputs 42, 44 in a first position of he spool, and which connect the outputs 42, 44 with the exhaust 36 in a second position of the spool. Two such valves may be served by the same input and exhaust ducts, the valve bodies being formed as a single unit, in which case further recesses 74, 78 in a first spool permit fluid to flow along the input and exhaust ducts past the first spool to or from the second valve.
Patent GB-1431790-A (GB)
Title: Polyformal polymers and copolymers
IPC: D01F6/62
Filed: 1973-08-10
Abstract: 1431790 Polyformal polymers EASTMAN KODAK CO 10 Aug 1973 [16 Aug 1972 31 May 1973] 37966/73 Heading C3R The invention comprises polyformal polymers having inherent viscosities from 0À03 to 1À0 and recurring units of formula where n is 1 or 2, and copolymers comprising 75 to 98 weight per cent of blocks of a polyester and 25 to 2 weight per cent of blocks of the polyformal. The polyformal is obtained by reacting a brominated bisphenol A diethanol of formula with formaldehyde. The copolymers are obtained by mixing the polyformal with a polyester and melting the mixture so that the polymers react to form the block copolymer or by forming a polyester from reaction mixture of a glycol, a dialkyl ester of a dibasic acid and the polyformal. In examples polyformal polymers are prepared from tetrabromobisphenol A diethanol and formaldehyde; copolymers are prepared by mixing the polyformal with poly-(ethylene terephthalate) and with poly-(1,4-cyclohexylenedimethylene terephthalate and melt extruding the mixture; also copolymers are made by esterifying mixtures of the polyformal with dimethyl terephthalate, ethylene glycol, 1,4-butane diol, dimethyl isophthalate and 1,4-cyclohexanedimethanol; fibres are spun from the copolymers and then knitted into fabrics which show improved flame resistance.
Patent GB-976673-A (GB)
Title: Improvements in or relating to apparatus for the collection of refuse
IPC: E04F17/12
Filed: 1962-10-09
Abstract: 976,673. Refuse shoots for blocks of flats. S. ALLCHURCH, and B. ALLCHURCH. Sept. 18, 1963 [Oct. 9, 1962], No. 38179/62. Heading B8S. A paper sack 25 full of refuse is disposed of in a block of flats through opening 12 and falls down shoot 10, the opening being controlled by pivoted door 20, and the sack being slit by knives 30 and 32 to allow refuse to escape from the sack 25. This avoids any blockage in the shoot.
Patent GB-1115801-A (GB)
Title: Hot top structure
IPC: B22D7/10
Filed: 1965-09-07
Abstract: 1,115,801. Ingot moulds. OGLEBAY NORTON CO. 7 Sept., 1965 [23 Sept., 1964], No. 38247/65. Heading B3F. A hot top comprises a metal easing 13 with an inwardly extending rim flange at top and bottom, the space between the flanges 20, 21 being filled with an insulating lining 14 of porous firebrick or cast refractory, and the inner face of the insulation being protected, for re-use, by a refractory insert jacket 23 made from a number of panels (25, 26), Fig. 4 (not shown), of approximately the same height as the metal casing 13. The panels are secured side-by-side to a flexible sheet, e.g. of corrugated cardboard &c. 27 which can be folded at the gaps between adjacent panels to form an annular lining for inserting into the insulated casing 13 to locate against the inner edges of the flanges 20, 21 and form the inner surface of the hot top. A bottom ring 37 is secured by clips, and a wiper ring 38 is included. The top edge 27a of the backing cardboard 27 acts as a location abutment against a chamfer 33 of the top flange 20.