baber/WOPTO huggingface dataset:
Patent GB-1124520-A (GB)
Title: Improvements in or relating material removing apparatus
IPC: E02F3/24
Filed: 1966-09-08
Abstract: 1,124,520. Bucket wheel excavators. MASCHINENFABRIK BUCKAU R. WOLF A.G. 8 Sept., 1966 [20 Sept., 1966], No. 40263/66. Heading E1F. [Also in Division B8] In an excavator a rotatable tube is supported below to extend across a mobile bridge. Scraper buckets are helically disposed about the tube to extend through openings in the tube. To prevent spillage from loaded buckets before the buckets pass above a funnel leading down to a conveyer extending through the tube the inner open ends of the buckets bear against a protective shield concentrically disposed within the tube about the conveyer up to the funnel. The inner portions of the buckets have a limited resilience in order that flexing may occur to prevent caking of material therein. The shield may have corrugations to enhance the flexing.
Patent GB-1398661-A (GB)
Title: Treatment of waste water
IPC: C02F3/34
Filed: 1973-08-24
Abstract: 1398661 Waste water treatment HITACHI Ltd 24 Aug 1973 [25 Aug 1972 6 Oct 1972] 40317/73 Heading C1C Material having a cationic or anionic charge is removed from waste water by contacting the waste water with plant cells at a pH exceeding the isoelectric point of the plant cells when the material to be removed is cationic or at a pH not exceeding the isoelectric point of the plant cells when the material is anionic so as to adsorb the material on the plant cells and separating the plant cells. The pH of the waste water may be adjusted before contacting with the cells or the pH of the mixture may be adjusted after contacting. The cationic material removed may be a heavy metal, such as Mn, Ni, Ag, Cd, Hg or Pb and the anionic material removed may be an acid dye, a mordant dye or hexavalent chromium. The plant cells may be obtained from yeasts, green algae and permanent tissues of seed plants. Where the waste water contains both cationic and anionic material the water may first be contacted with plant cells at a pH exceeding their isoelectric point and then be contacted with plant cells (which may be the same as or different from the first plant cells) at a pH not exceeding their isoelectric point. Where hexavalent chromium is to be removed the waste water may first be contacted with plant cells at a pH not exceeding their isoelectric point and then be contacted with plant cells at a pH exceeding their isoelectric point to remove chromium which has been converted to Cr<SP>3+</SP> on contact with the plant cells. The plant cells may be separated from the waste water by centrifugation and/or by using a precipitation tube.
Patent GB-1419447-A (GB)
Title: Appliance for linear bodies
IPC: F16G11/05
Filed: 1973-08-28
Abstract: 1419447 End fittings PREFORMED LINE PRODUCTS CO 28 Aug 1973 [13 Sept 1972] 40412/73 Heading D1T An end fitting for a cable 12 comprises:- (a) a first protuberance member 14 on the cable 12 and a first set of helically preformed elements 16 wrapped in tightly encircling relation about the member 14 and in gripping relation with the cable 12; (b) a second protuberance member 18 on the first set of helically preformed elements 16, and a second set of helically preformed elements 20 wrapped in tightly encircling relation about the member 18 and in gripping relation with the elements 16; and (c) a housing 22 receiving the first and second protuberances formed by (a) and (b), said housing having a restraining end against which one of the protuberances is seated and a restraining structure 30 against which the second protuberance is seated. In Fig. 1 the restraining structure 30 is threadably secured in the housing at 30a. A clevis 24 is screwed into the housing. The structure includes adapters 26 and 32 that encircle the protuberances.
Patent GB-981939-A (GB)
Title: Improvements in or relating to infra-red radiators
IPC: H05B3/44
Filed: 1963-10-14
Abstract: 981,939. Infra-red heaters. HERAEUS QUARZSCHMELZE G.m.b.H. Oct. 14, 1963 [Nov. 16, 1962; March 12, 1963], No. 40428/63. Heading H5H. A tubular glass cased infra-red radiator element arranged to be supplied with current from one end has a partition member within the casing resting at the closed end on a wad of quartz wool, and forming a plurality of chambers in which the heating element is disposed, Fig. 2 or Fig. 3. The partition member may be twisted as shown in Fig. 4.
Patent GB-996518-A (GB)
Title: Improvements in or relating to sewage disposal systems
Inventor: WILKINS DAVID LEONARD WALTER
IPC: C02F3/12
Filed: 1962-10-26
Abstract: <PICT:0996518/C1/1> In an aeration tank 1 with diffuser heads 2, the orifice of the atmospheric vent 4 is protected from blockage by foam by means of a fantailed jet of air from nozzle 9.
Patent GB-1162685-A (GB)
Title: Electric Power Control Circuit Using a Thyristor
IPC: H03K17/72
Filed: 1966-09-12
Abstract: 1,162,685. Converting; control of D.C. motors. GENERAL ELECTRIC CO. 12 Sept., 1966 [24 Oct., 1965], No. 40709/66. Headings H2F and H2J. [Also in Division H3] A commutating circuit for a semi-conductor switching device, e.g. SCR, diac or triac, comprises a series connected capacitor and rectifier in parallel with the load terminals of the switching device. In use, the capacitor charges up while the switching device is off, and when the switching device becomes conductive the rectifier is reverse biased to hold the capacitor charged. When it is required to switch off the switching device, the capacitor is caused to discharge resonantly through it. Motor control circuits.-In one embodiment, Fig. 4, a motor 22 is driven from a D.C. supply 18, 19 via a phase-controlled triac 11 and a further triac 43. When it is required to turn off triac 11, a further triac 52 is fired to discharge commutating capacitor 23 through triac 11, the discharge being made resonant by inductor 26. When it is required to pump back energy from the motor 22 to the load, capacitor 51 provides similar commutation for triac 43. Triac 52 may be omitted, the two triacs 11, 43 then commutating each other off. In an alternative arrangement, Fig. 5 (not shown), turn-on at one of the triacs (11, 43) is arranged to turn off the other by means of saturable transformers (16) which initiate discharge of the resonant commutating circuit (23, 26, 27). Converting circuits.-In a D.C.-A.C. converter, Fig. 7, comprising a bridge of triacs 11, 11<SP>1</SP>, 43, 43<SP>1</SP> discharge of the commutating circuit 23, 26, 27 of each conducting triac is initiated by firing- of a non-conducting triac. Thus firing of, say, 11 and 43<SP>1</SP> produces current through transformers 16a, 16b<SP>1</SP> to discharge the commutating circuits of triac 43, 11<SP>1</SP>, thus extinguishing them. The commutating circuit may also be used in a biphase converter using SCR'S, Fig. 9 (not shown). D.C. control circuits.-The commutation circuit may also be employed in circuits of the type in which variable firing angle control of triacs, SCR's or diacs is used to vary the supply of D.C. to a load, Figs. 1, 2, 3, 6, 8, 10 (not shown), turn off being either initiated by an auxiliary SCR or by a further triac in a flywheel circuit.
Patent GB-1485577-A (GB)
Title: Distilling
IPC: B01D3/12
Filed: 1976-01-05
Abstract: 1485577 Distillation apparatus REKTORAT SLOVENSKEJ VYSOKEJ SKOLY TECHNICKEJ 5 Jan 1976 [4 Oct 1975] 40742/75 Heading BIB  A thin film multistage evaporator comprising a single evaporator body comprising a vertical inner shell I having an external heating surface and an outer shell surrounding the inner shell to define a space there between which is divided into successive working chambers 2, 3, 4, by gas tight means 11 and 20. A rotatable film wiper 10, 19, 20 wipes the exterior surface of the inner shell. The wiper and the seals form a single driven unit (e.g. rotated by motor 6) about the heated surface. In the embodiment of Fig. I vapour passes through condenser surfaces 55, 56 and condenses on cooling jackets 37, 41, 45 and condensate is led away through tubes 39, 42, 35 vacuum being applied through tubes 40, 41. Heating tubes 46, 47, and 48 supply heat to the three stages which are maintained at 10<SP>-1</SP>, 10<SP>-2</SP> and 10<SP>-3</SP> Torr respectively. Liquid to be evaporated is fed at 54 travels downwardly and is removed at 34.
Patent GB-1270327-A (GB)
Title: Anti-slip or anti-skid devices for rail vehicles, in combination with rail cleaners or rail brakes and switch means
IPC: B61C15/00
Filed: 1969-08-15
Abstract: 1,270,327. Cleaning rails. KNORRBREMSE G.m.b.H. 15 Aug., 1969 [16 Aug., 1968], No. 40896/69. Heading B7J. [Also in Division F2] An anti-slip or anti-skid device, which device in use acts on slipping or skidding of a wheel set, on associated braking or driving means to decelerate or accelerate the wheel set, is combined with switch means in the form of an electromagnetic valve 15 which is controlled by the anti-slip or anti-skid device and by which valve 15 a head section 3 of a rail cleaner 2 is moved from a rest position and temporarily held in an operating position to clean a rail surface 12. As shown, the valve 15 is connected to the anti-slip or anti-skid device (not shown), by an electric line 16 and the valve 15 is situated between a pressure medium pipe 14 and a pipe section 14<SP>1</SP>, which pipe section 14<SP>1</SP> connects with the rail cleaner 2 which is pressure-operable and comprises the head section 3, e.g. a rubber plate at the lower end of a piston-rod 4 which has at its upper end a piston 5 situated in a cylinder 6. The piston-rod 4 has fixably attached thereto within the cylinder 6 a plate 8 and between the plate 8 and the bottom 7 of the cylinder 6 is situated a spring 9 and a quantity of damping liquid 10, the distance h corresponding approximately to the spacing of the head section 3 from the surface of rail 12 in its rest position. Opening of the valve 15 by the anti-slip or anti-skid device results in the flow of pressure medium from the pipe 14 to the pipe section 141 via a by-pass pipe 20 containing an open check valve 21 to thereby move down the piston 5 and bring the rail cleaner 2 into its operative position: on the valve 15 closing the pipe section 14 becomes connected to an outlet 17 but the return movement of the piston 5 is slowed down by a timing means comprising a pressure medium reservoir 18, the check valve 21 in the by-pass pipe 20, which valve 21 now closes, and a throttling device 19 in the pipe section 14<SP>1</SP> which throttling device 19 slows down the return flow of pressure medium.
Patent GB-1261520-A (GB)
Title: Improvements in and relating to power supply arrangements for cathode ray tubes
Inventor: FORSTER GERHARD
IPC: H04N3/22
Filed: 1968-08-27
Abstract: 1,261,520. EHT supplies for cathode-ray tubes. RCA CORPORATION. 27 Aug., 1969 [27 Aug., 1968], No. 40978/68. Heading H2F. In a power supply circuit for a cathode-ray tube, the A.C. supply is rectified by a thyristor 10, the resulting D.C. operating a deflection generator 55 from which is derived the EHT for the cathode-ray tube, the conduction angle of the thyristor 10 being controlled in response to changes both in the A.C. and D.C. voltages so as to stabilize the deflection amplitude. As described, trigger signals for thyristor 10 are derived by a phase shifter 24, 26. The level of such signals is controlled by transistor 30 in response to changes in A.C. voltage (via diode 37) and to changes in D.C. voltage (via resistor 45). The deflection generator 55 is driven by transistors 50 and 52 and feeds deflection coil 56. The flyback pulses are stepped up by transformer 60 and rectified at 61 to provide EHT. In Fig. 2 (not shown) the D.C. responsive control is achieved by connecting the lower end of the primary of transformer 60 to the base of transistor 30.
Patent GB-1440379-A (GB)
Title: Process for the manufacture of esterification catalysts
IPC: B01J23/14
Filed: 1973-08-31
Abstract: 1440379 Impregnated shaped silica gel CHEMISCHE WERKE HULS AG 31 Aug 1973 [2 Sept 1972] 41068/73 Heading C1A [Also in Divisions B1 and C2] The activity of a shaped silica gel esterification catalyst is improved by impregnating it with one or more dissolved compounds of Al, Ti, Zn or Sn, drying and then gassing with methanol vapour. The silica is, suitably, a porous amorphous silica in bead or sphere form which has been formed by gelling a silica hydrosol with mineral acid and forming beads in a waterimmiscible liquid. It may contain additives, e.g. magnesia, silica fillers, clays, carbon or inorganic compounds to improve its physical properties, e.g. abrasion resistance. The impregnation of the gel may use a solution of an organic derivative of the metals which will give the oxide or hydroxide in subsequent processing or use. The impregnation solution may contain 0À01-8% wt. of the compound, expressed as metal. In the examples 0À5 % wt. of Al; 1% wt. of Zn; 1À2% wt. and 1À8% wt. of Ti or 1À4% wt. of Sn is applied to the silica gel bodies.
Patent GB-1139127-A (GB)
Title: Electric circuit arrangement of a skiving machine
Inventor: VINKTAREK ALOIS
IPC: A43D8/34
Filed: 1967-09-08
Abstract: 1,139,127. Skiving-machines. ZAVODY PRESNEHO STROJIRENSTVI GOTTWALDOV NARODNI PODNIK. 8 Sept., 1967 [10 Sept., 1966], No. 41077/67. Heading B4B. In a skiving machine having pedal-controlled electric circuits for controlling the pawls 2, Fig. 4, for stepwise turning of a programme cylinder 1 controlling the positions of guiding elements for adjusting the thickness, width and angle of skiving, the cylinder 1 being actuated by a D.C. electromagnet Z1 and the pawls 2 being selected by an A.C. electromagnet Z2, an additional circuit V-V, Fig. 1, is arranged in parallel with the pedal-controlled circuits I-I to IV-IV to provide an automatic adjustment of the machine. The circuit V-V includes a contact K1 which is closed when the material to be skived is between a pivotally-mounted arm (5), Fig. 2 (not shown), and a feeder (4). The contact K1 is connected with a relay B1 which is supplied by a rectifier U1. The circuit I-I includes contact K2, rectifier U2 and relays B2, B3, circuits II-II, III-III and III<SP>1</SP> include contact K3, relays B4, B5 and electromagnet Z2 and circuits IV<SP>1</SP>, IV-IV include rectifier U3, electromagnet Z1 and relay B3. The contacts K2, K3 are closed when the pedal (11), Fig. 3 (not shown), is operated.
Patent GB-891664-A (GB)
Title: Improvements in or relating to whippletrees and like structures
Inventor: TATE JOHN HUNTLEY
IPC: A01B19/00
Filed: 1959-12-03
Abstract: 891,664. Whippletrees. LEWIS & CO. Ltd., SAMUEL. Dec. 28, 1960 [Dec. 3, 1959], No. 41083/59. Class 108(2). A whippletree comprises a tubular member 11 of square or rectangular cross-section to which an implement such as a harrow 10 may be attached by riveted on eye bolts 12, and which is attached to the harness of a horse or tractor by a hook 15 attached to ring 14 connected to the member 11 by a pair of rod members 16 having an eye at each end. Each rod member may comprise a pair of rods 16 connected by interengaging eyes.
Patent GB-1145610-A (GB)
Title: Filter
IPC: B01D29/09
Filed: 1967-09-08
Abstract: 1,145,610. Moving band filter. CLARKSON INDUSTRIES, Inc. 8 Sept., 1967 [7 March, 1967], No. 41217/67. Heading B1D. In a filter for machine-tool coolant, in which a strip of paper or cloth filter medium is unwound from a supply roll (41) and carried along the upper run of endless belt 21, 22, sealing strips 43, (44) backed by spring metal 58 engage the margins of the medium, and any liquid which penetrates between the medium and strips runs into channels 61, (62), which slope down to a sump (66) at one end of the filter, and is kept separate from filtrate in tank 10. Belt 21, 22 comprises transverse wire coils 21, intermeshed together, some enclosing rods 22 which are joined to the endless chains 23, 24. A vacuum pump 46, which extracts air from tank 10 to assist the filtration, is driven by the same motor (31) as moves the belt, and motor (31) is controlled by a pressure switch in tank 10. The upper run of the belt has a concave form and is supported by rollers 28, and dirty liquid is delivered gently by a distributor (36) to form a pool 45 above the medium, which is discharged with solids into receptacle (42). Filtrate leaves tank 10 by outlet (37) to return to the machinetool. Liquid which has leaked under strips 43, (44) is discharged at (68). The belt 21, 22 has impervious resilient edge strips 59 (60) to back the filter medium under strips 43, (44).
Patent GB-1237806-A (GB)
Title: Carburetor choke valve
Inventor: MCFADDEN PAUL H
IPC: F02M1/02
Filed: 1969-08-19
Abstract: 1,237,806. Spray carburetters. BENDIX CORP. Aug. 19, 1969 [Sept. 5, 1968], No.41298/69. Heading F1B . A choke valve plate 16 mounted on a manually operated shaft 18 in a carburetter air intake passage 12 is connected to the shaft by a leafspring 20 so that when the choke is partially opened during engine starting by the suction developed in the passage and acting on the valve plate, the leaf-spring distorts to allow the valve plate to move relatively to the shaft from the closed position shown in Fig. 3 to the partially open position shown in Fig. 6, with the centre 17 of the valve plate moving along the axis of the passage.
Patent GB-1345530-A (GB)
Title: Circlips
IPC: F16B21/18
Filed: 1970-12-11
Abstract: 1345530 Circlips H VISSERS NV 11 Dec 1970 [12 Dec 1969] 41774/73 Divided out of 1345529 Heading F2H A resilient ctrclip 1, for use in an assembly as described and claimed in United Kingdom Specification 1,345,529, is made of a plastics material, such as a polyamide, reinforced with glass fibres. The circlip is thus adapted to shear when subjected to a predetermined force. A bevelled or rounded edge 10 may be provided, or each radially outer edge of the circlip may be bevelled.
Patent GB-1120292-A (GB)
Title: Control arrangement in electro-erosive apparatus
IPC: B23H1/02
Filed: 1965-10-01
Abstract: 1,120,292. Spark erosion. INDUSTRIELLE ELEKTRONIK AGIE LOSONE BEI LOCARNO, A.G. FUR. 1 Oct., 1965 [15 July, 1965], No. 41840/65. Heading B3V. [Also in Divisions G3 and H2] Electro-erosion apparatus is supplied from a pulse-generator (not shown) over a transistor switch TR1 and the working current passes through a resistor 11 across which is connected a circuit 2 including a relay 25 which operates to close contacts 26, 21 when a capacitor 24 is fully charged. Thus if an arc occurs in the working gap between the electrode 106 and a workpiece 107 a relatively large current passes and capacitor 24 charges up and operates relay 25; at the same time the electrode feed motor M, under the control of a regulating device 5, reverses to retract the electrode 106 from the workpiece, the armature voltage of the motor then being such that a signal of positive potential is produced at point 508. This signal is applied over transistors TR2, TR3, TR4 in a circuit 4 to operate a relay 45 whereby contacts 43 and 44 are closed. With both relays 25 and 45 operated, an A.C. supply on lines 102, 103 is connected over contacts 21, 26, contacts 43, 44, a diode 36 and a valve 39 associated with a time-delay circuit 37, 38, to operate a relay 310 whereby the supply to the electro-erosion apparatus is interrupted by way of contact 33, a fault indicator 311 is energized by way of contact 34 and a device 6 is operated by way of contact 35. The device 6 acts to charge one or more of the pulse generator output parameters, e.g. pulse frequency, pulse amplitude, or pulse width so that when the system automatically starts up again, i.e. when relays 25 and 45 fall off, arcing is less likely to occur. Electric switches or transductors may replace the relays 25, 45 and 310. Thus, the protective system responds only when the arc persists and the electrode is being retracted, and the Specification describes how this obviates unnecessary actuation under certain operating conditions.
Patent GB-871134-A (GB)
Title: Folding chair
Inventor: GOLTEN DESIDER
IPC: A47C4/24
Filed: 1959-12-09
Abstract: 871,134. Folding chairs. METAL PRODUCTS (TREFOREST) Ltd. April 8, 1960 [Dec. 9, 1959], No. 41869/59. Class 52(2). A foldable chair has a pair of legs 2 joined at the top by a horizontal connecting part which is held in a clip 6 and backrest supports 8, which are formed to fold flat on seat 4, are pivotally mounted on brackets 5 for the other pair of legs 1. When legs 2 are released from clip 6 and collapsed into legs 1, the seat and back rest may be folded flat against the legs (Fig. 3, not shown)
Patent GB-1011703-A (GB)
Title: Aparatus for regulating the composition of electrolytes
IPC: C25D21/12
Filed: 1962-11-06
Abstract: 1,011,703. Automatic mixture control. J. PRUSEK. Nov. 6, 1962, No. 41873/62. Heading G3R. [Also in Division G1] An arrangement for automatically monitoring and regulating the proportions of constituents in a bath of electrolyte comprises a sampling arrangement wherein electrical signals representative of conductivity, S.G. and temperature are developed and a computer to which the signals are applied and which produces signals representative of the proportion of two known constituents for regulating the composition. The sampling means comprises a sampling chamber 12 through which the sample is pumped, and a float 13 within the chamber, which float signals the S.G. by the effect of a projection therefrom on the current through an induction member 10. The float carries a thermistor 14 and a coil 15 in a sealed glass tube, the coil being energized by an H.F. generator, housed within the float, and indicating changes in conductivity by the effects of changes in the electrical properties of the coil.
Patent GB-1408910-A (GB)
Title: Photographic lenses
IPC: G02B13/00
Filed: 1972-09-08
Abstract: 1408910 Telephoto lenses PONDER & BEST Inc 8 Sept 1972 [10 Sept 1971 7 Sept 1972] 41928/72 Heading G2J A telephoto lens, comprises a housing 10, a plurality of objective elements 20.... 25 coaxially mounted in the housing means for moving the elements axially in fixed relation to focus the lens, and a lens 32 having zero or negative power mounted in the housing behind the elements in fixed relation to the housing and being effective to correct off-axis aberration when the elements are moved to close focus the lens. The equivalent focal length of the lens 32 is at least twice the back focal length of the overall lens which should be at least 0.7 times the diagonal of the image frame 18 of the camera 16. The lens 32 may be an air spaced or lemented doublet. Optical data are given.
Patent GB-419476-A (GB)
Abstract: 419,476. Calculating - apparatus. ASHMORE, J. W., 124, Weldon Crescent, High Heaton, Newcastle-on-Tyne. Sept. 14, 1933, No. 25440. [Class 106 (i).] A tabular device for use in calculating the value of bets comprises a set of superposed discs the lower one of which forms a base 1 with a central pivot 2, an upstanding edge 1<a>, and an annular scale plate 1<*> which serve to support and maintain the other discs 3, 4, in position, the discs 3, 4 being movable independently or conjointly. The upper disc 4 is provided with a radial aperture 5 at the edges of which is marked a scale of amounts wagered and diametrically opposite thereto is an aperture 6 with an arrow 8 to indicate the odds that are marked on the circumference of the intermediate disc 3. On the disc 3 also are radial columns of amounts corresponding to the odds and amount wagered. These amounts may represent amounts won at "odds-on" prices and to ascertain the amounts won at normal or "odds against" prices the disc 3 is provided with an aperture 10 to expose the columns of amounts marked on the base member 1. The disc 3 is rotated to bring the apertures 5, 10 into coincidence by means of projections 11, 11<a> and to prevent movement of the disc 3 in one direction teeth 3<a> on its edge co-operate with a detent 9.
Patent GB-1102696-A (GB)
Title: Improvements in or relating to shoe manufacture
Inventor: STADEN ALFRED ALEXANDER
IPC: A43D8/00
Filed: 1965-11-17
Abstract: The subject-matter of this Specification forms part of that described in Specification 1,102,695, but the claims differ.