baber/WOPTO huggingface dataset:
Patent GB-1092668-A (GB)
Title: Data input apparatus for use in conjunction with a calculating device
Inventor: KOEHLER HELLFRIED
Filed: 1965-08-04
Abstract: 1,092,668. Calculating apparatus. BUCHUNGSMASCHINENWERK KARLMARX - STADT VEB. Aug. 4, 1965, No. 33349/65. Heading G4B. Data input apparatus for use in conjunction with an electronic computer or the like, has two data stores (e.g. a pin carrier and a contact matrix set up thereby), two sign stores (e.g. plus and minus keys with associated mechanism) and two instruction stores (e.g. function keys with associated mechanism, and a set of contacts actuated thereby). A first number is entered manually on digit keys and set up in the pin carriage in known manner. The sign and function keys are then depressed and the start key actuated; this causes the transfer of the pin carriage setting to the contact matrix and a signal is sent to the computer. A second number can now be entered and sign and function keys depressed while the settings of the contact matrix and the first sign and function keys are transmitted to the computer. The second number and key settings are transmitted subsequently in a similar manner. Details of the keyboard mechanism and circuitcontrolling arrangements are described and illustrated.
Patent GB-1022365-A (GB)
Title: Improvements in or relating to wave-guide coupling
IPC: H01P1/16
Filed: 1963-08-23
Abstract: 1,022,365. Waveguide seals; travelling-wave tubes. SIEMENS & HALSKE A.G. Aug. 23, 1963 [Aug. 31, 1962], No. 33435/63. Headings H1D and H1W. A dielectric sealing member 6 having rotational symmetry is provided in a junction member 9, 10 extending between and perpendicularly to a pair of parallel rectangular waveguides 1, 3 the first of which is intended to be evacuated. The junction member contains three irises 7, 8, 11 which are designed to provide band-pass characteristics for E 01 mode energy in the member and to provide a characteristic impedance having a root equal to the product of the impedances of the guides 1, 3. In order to compensate for the presence of the dielectric seal 6, the central iris may have a larger diameter than the outer irises (Fig. 2, not shown). This compensation may also be effected by placing the seal 6 and its associated iris nearer to the iris 7 than to the iris 8. As shown in Fig. 3, the central iris 11 is made from a separate annular member which is held between two flanges 9, 10 which together form the junction member. A soldered seam 12 between flange 10 and annulus 11 is located within a closed annular chamber 13 formed between the flanges 9, 10. In a modification (Fig. 4, not shown), the central iris is formed from thin material and is provided with annular corrugations to absorb thermal stresses. It is sealed to the flange 10 by means of an 0-ring. In a further modification (Fig. 5), eccentric irises of reduced diameter are used, the junction member thereby comprising two coupled resonant cavities with the sealing member 6 extending across one of them. Where the waveguide 1 is extended for connection to a travelling- wave or transit-time tube 18, the axis of this tube is arranged at right-angles to the waveguide in order to prevent X-rays or electrons from hitting the window.
Patent GB-972214-A (GB)
Title: Liquid fuel injection pumps for internal combustion engines
Inventor: EVANS FRASER MACKIE
IPC: F02M41/14
Filed: 1961-09-19
Abstract: 972,214. Fuel-injection pumps. C.A.V. Ltd. Sept. 12, 1962 [Sept. 19, 1961], No. 33458/61. Heading F1A. In a fuel injection pump comprising a rotary distributer 3 housing pistons 5 in a transverse bore, Fig. 1, distributer 3 is coupled to a drive shaft 6 by a tongue 4a, Fig. 2, engaging a slot in a cup-shaped portion 6a of shaft 6, extensions of the slot being aligned with pistons 5, Fig. 3, and housing shoes 9 and rollers 10 engaging a cam track 11. Cam track 11 may be replaced by a cylindrical track having captive rollers mounted thereon, rollers 10 being replaced by cam surfaces on shoes 9. The end 4 of the distributer is of reduced diameter to permit slight angular movement between shaft 6 and the distributer. Fuel is fed to pistons 5 by a rotary vane feed pump 14 via a throttle 18 controlled by a centrifugal governor 13.
Patent GB-602079-A (GB)
Title: Improvements in and relating to dischargers for centrifugal machines
IPC: B04B11/08
Filed: 1945-12-11
Abstract: 602,079. Centrifugal machines &c. NAAMLOOZE VENNOOTSCHAP MACHINEFABRIEK REINEVELD. Dec. 11, 1945, No. 33538. Convention date, Nov. 10, 1942. [Class 23] A centrifugal machine comprising a cutting blade or plough 5 for the removal of solid material and a skimming device 9 for removing liquid from the basket 3, the plough and skimming device being adapted to be moved towards or away from the filtering or straining wall of the basket, is characterised in that the skimming device 9 is adjustably secured to the blade supporting member 4. The sleeve member 10 is axially located on the discharge pipe 8 by means of two collars 12, and has two helical grooves 11 coacting with rollers 7 housed in brackets 6 secured to the blade supporting member 4. Thus rotation of sleeve 10 by a suitable lever causes axial movement of pipe 8 and skimming device 9. A clamp 15 is provided for securing the pipe 8 in the required position.
Patent GB-172965-A (GB)
Title: Improvements in propellers
IPC: B63H1/12
Filed: 1921-12-14
Abstract: 172,965. Tourseiller, J. A. F. Dec. 14, 1920, [Convention date]. Driving-arrangernents for screw propellers.-A propeller is provided with alternate thrust and suction surfaces produced on a diaphragm by cyclical deformation. A flexible diaphragm F, Fig. 1, carried by a casing A is fixed to the vessel. The rotating shaft B has an arm C on which are freely mounted rollers D which bearup against the diaphragm and on rotation deform it to produce the alternate surfaces. The casing is supplied with air at the required pressure by a pipe G. The Specification as open to inspection under Sect. 91 (3) (a) also comprises a propeller in which thrust surfaces J, Fig. 2 (Cancelled), alternate with suction surfaces K in a rigid construction. This subject-matter does not appear in the Specification as accepted.
Patent GB-1392513-A (GB)
Title: Method for producing fasteners such as screws pins bolts or the  like comprising elongatable shanks and elongatable shank fastener produced according to the aforesaid method
IPC: F16B19/02
Filed: 1972-07-18
Abstract: 1392513 Bolts H BRANDER 18 July 1972 [20 July 1971] 33566/72 Heading F2H A bolt shank is formed by rolling, with a threaded portion 2 and a portion 3 having alternate peripheral beads 10 and grooves 11. The bead crests and groove bottoms are circular arcs in profile, and are tangential to the sides of the grooves. The beads 10 and the threaded portion 2 have the same external diameter d, except for one bead (7), (Fig. 2, not shown) which is formed with an external diameter (d 5 ) greater than d, and is subsequently ground to an intermediate diameter (d 6 ) to fit a centring bore in a workpiece. The beads may be knurled or serrated. The specification includes formulae interrelating the various dimensions of the grooves and beads.
Patent GB-738253-A (GB)
Title: Honing element
IPC: B24B33/08
Filed: 1953-12-03
Abstract: 738,253. Honing. BARNES DRILL CO. Dec. 3, 1953 [Jan. 19, 1953], No. 33647/63. Class 60. A honing element, for use in tools for honing internal cylindrical surfaces, comprises a stick 10, Figs. 2 and 3, of bonded abrasive to the sides of which are secured by adhesive thin strips 12 of non-metallic material, e.g. a thermosetting phenolic type resin material. The strips 12 project below the bottom of the stick to form a channel which receives a rigid bar 17. The end portions of the bar 17 project beyond the stick and have notches 19 to receive the garter bands; the ends of the notch walls project a short distance above the bottom of the stick so as to provide shallow shoulders 21 which abut against opposite ends of the stick to prevent longitudinal movement of the stick relative to the bar. The notches 19 are of such depth that the outer surfaces of the springs do not project appreciably above the bottom of the stick. The stick and bar are detachably secured together by pins 22 passed through holes 23, 24 in the bar 17 and side strips 12 respectively. A squared lug 32 formed on one side of the bar 17, projects through a notch 33 in one of the strips 12 and engages a recess in one side wall of the tool body, to prevent longitudinal movement of the honing element relative to the tool body. In a modification, Fig. 4, the notches 19 for receiving the springs 20 underlie the ends of the stick. In a further modification, Fig. 6, lugs 25 formed integral with opposite ends of the side strips 12 underlie the garter springs 20, this arrangement serving to connect the stick to the bar.
Patent GB-664816-A (GB)
Title: Improvements relating to securing materials together
Inventor: MCGILL ERIC FREDERICK GEORGE
Filed: 1947-12-20
Abstract: Monochlorotriethoxy silane is prepared by reacting one mol silicon tetrachloride and 3 mols. of anhydrous ethyl alcohol.  The Provisional Specification refers to the replacement of one of some of the halide atoms of a silicon halide with alkoxy or aroxy groups.
Patent GB-1478516-A (GB)
Title: Lactones of the benzazaxanthene series and dye-forming components for duplication processes
IPC: B41M5/145
Filed: 1974-07-31
Abstract: 1478516 Benzazaxanthene lactones BASF AG 31 July 1974 [1 Aug 1973] 33739/74 Addition to 1454304 Heading C4P The invention comprises benzazaxanthene lactones of the general formula wherein R<SP>1</SP> is H, alkyl, cyanoalkyl or hydroxyalkyl having 1 to 6 C atoms per alkyl radical, alkoxyalkyl having 2 to 12 C atoms, carboalkoxyalkyl having 4 to 11 C atoms, or phenylalkyl having 7-12 C atoms, R<SP>2</SP> is phenyl optionally substituted by C 1 -C 3  alkyl, Cl and/or Br, R<SP>3</SP> is H or an optionally substituted aliphatic or aromatic radical, X and Y are independently hydroxyl, Cl, Br or C 1 -C 3  alkyl, Z<SP>1</SP> is H, Cl, Br, NO 2 , alkyl or hydroxy- or halo-alkyl having 1-3 C atoms, Z<SP>2</SP> is H, Cl, Br, C 1 -C 4  alkyl or phenyl, m and n are independently 0, 1, 2 or 3 individual radicals X and/or Y being identical or different when m and/or n denote 2 or 3. They are prepared by condensing a benzoylbenzoic acid of the general formula wherein R is H, C 1-4  alkyl or a C-acyl radical of an aliphatic carboxylic acid having 1 to 4 C atoms and in which R<SP>1</SP>, R<SP>2</SP>, X, Y, Z<SP>1</SP>, m and n are as above with a homophthalimide of the general formula wherein R<SP>3</SP> and Z<SP>2</SP> are as above. The condensation takes place in presence of water-eliminating agents, e.g. sulphuric or polyphosphoric acid, acetic anhydride or zinc chloride, optionally in presence of a high boiling point solvent, e.g. trichlorobenzene. The compounds are used in pressure sensitive recording media.
Patent GB-605106-A (GB)
Title: New laminated safety glass
IPC: B32B17/10
Filed: 1945-12-14
Abstract: As interlayers in compound glass there are used the films consisting of highly polymeric esters of ethylene glycol and cyclohexane-1 : 4-dicarboxylic acid, which may contain up to 25 per cent of esters of other glycols, e.g. propylene, diethylene, trimethylene, or p-xylylene glycol, with other acids, e.g. adipic or terephthalic acid.  Films may be prepared separately or in situ by drying on the glass solutions of the esters, e.g. in ethyl acetate, chloroform, acetone, methyl ethyl ketone, or mixtures thereof.  Specification 461,236 is referred to.
Patent GB-415995-A (GB)
Title: Improvements in and relating to racket presses
IPC: A63B60/44
Filed: 1932-11-30
Abstract: 415,995. Racket-presses. STOIK, T., 86, Grossbeerenstrasse, Berlin. Nov. 30, 1932, No. 33924. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 31, 1933]. [Class 132 (ii).] A racket-press comprises one frame, instead of the usual two frames, in the form of a collapsable cross with clamping members for the racket at the ends of the four legs of the cross. The frame has four legs a, b, c and d in two pairs pivoted at e, clamping members f, g, hand i for the racket being located in slots in the ends of each of the legs a, b, c and d respectively. The clamping members are secured by knurled screws k, l, m and n. A modified construction is shown in Fig. 4 in which the clamping members cannot get lost when no racket is in the press, a clamping member f being enlarged at f<111> for engagement with a correspondingly enlarged slot a<1> which prevents the member f leaving the leg a in the direction of the screw k.
Patent GB-1511309-A (GB)
Title: Cyan-forming couplers and silver halide photographic materials containing these couplers
IPC: G03C7/34
Filed: 1975-08-14
Abstract: 1511309 Phenolic and naphtholic colour couplers FUJI PHOTO FILM CO Ltd 14 Aug 1975 [14 Aug 1974] 33970/75 Heading C2C [Also in Division G2] A two-equivalent cyan-forming photographic coupler has the formula A-NHCOR where A is a group obtained by the removal of H from an active methine group of an optionally substituted phenolic or naphtholic coupler and R is (1) an aliphatic hydrocarbon group having at least one electron-attracting substituent in the α-position to the CO group in RCONH or (2) aryl, heterocyclic, alkoxycarbonyl, aryloxycarbonyl, carbamoyl, acyl or amino which groups are optionally substituted with one or more electron-attracting substituents, and R is a residue of a carboxylic acid of the formula RCOOH having a pKa of not more than 2À6, the electron-attracting substituents in (1) and (2) being selected from halogen, NO 2 , carbonylcontaining group, carboxyl, sulphonyl-containing group and sulpho. In the specified couplers A is an optionally substituted 4-hydroxy-phenyl or 3-carbamoyl-4-hydroxy-naphthyl group. The coupler may be prepared by heating A-NH 2  and RCOCl in acetonitrile for 4-6 hours in the presence of a base, e.g. triethylamine. 1 - Hydroxy - 4 - nitro - N - [γ - (2,4 - ditert - amylphenoxy)propyl] - 2 - naphthamide is prepared by nitrating 1-hydroxy-N-[γ-(2,4-ditert - amylphenoxy)propyl] - 2 - naphthamide in acetic acid at 15-18‹ C. using 60% nitric acid aqueous solution. 1 - Hydroxy - 4 - amino- N - [γ - (2,4 - di - tert - amylphenoxy)propyl]. 2-naphthamide is prepared by reduction of the above nitro compound in 90% acetic acid aqueous solution using reduced iron.
Patent GB-825250-A (GB)
Title: Improvements relating to the construction of open-hearth furnaces and other similar metallurgical furnaces
IPC: F27D1/02
Filed: 1957-11-01
Abstract: 825,250. Furnace walls and roofs. HEUER, R. P. Nov. 1, 1957 [Nov. 6, 1956], No. 34219/57. Class 51 (2). An open hearth furnace comprises a front wall 25 and back wall 26 suspended from buckstays 52 and arched inwardly towards a gabled roof 27 suspended from I-beams 35 hooked by brackets 36 on to front and back beams 32 and 33 respectively, the maximum width between the front and back walls at the upper hearth level 22 being more than 10% greater than the width of the roof at its inner face. The basic refractory roof bricks 46, Fig. 3, are suspended in pairs from the webs of beams 35 by hangers 38 with cardboard or asbestos expansion plates 51 between the bricks. Projections 40 on the hangers 38 engage co-moulded sockets 42 set towards one brick face at an angle, Fig. 2 (not shown), so that the bricks take up the slope of the roof suspended from the vertical hangers. The roof may be removed by crane and the beams 32 and 33 are supported on a hearth frame or beam structure 34. Metallic abutments 50 at the ends of the beams 35 engage the end roof bricks. The walls 25 and 26 comprise wedge-shaped basic bricks 53, Fig. 5, suspended by hangers 64 from buck-stays 52 spaced longitudinally of the furnace on the frame 34, and partly supporting the beams 32, 33. Intermediate bricks 54 filling the spaces between bricks 53 are of opposite wedge-shape to the latter and thus do not tend to fall inwardly of the furnace wall. These bricks 54, Fig. 10, have a metal casing comprising a U-plate 73 and a flat plate 76 each formed with internal ribs 72, and similar plates may be fitted to the bricks 53. The furnace walls may be planar instead of arched. In a modification, Fig. 11 (not shown), the wall bricks may be suspended from the buck-stays 52 by hooks engaging rods welded to said buck-stays. The gaps 91 between the roof and the walls may be closed by a mass of granular plastic refractory 92. Above the water-cooled door frames 93 in the front wall 25 are arches 94 of basic refractory, wedge bricks suspended from girders 95 in pairs by hangers 96. The bricks are metalcased with internal ribs similar to the bricks 54, Fig. 15 (not shown). The brickwork may comprise magnesia plus 5-75% chromite.
Patent GB-1527275-A (GB)
Title: Electrical connector
IPC: H01R13/20
Filed: 1976-08-17
Abstract: 1527275 Two-part couplings C MEYER 17 Aug 1976 [9 Sept 1975] 34279/76 Heading H2E A cable connector has two parts 1, 2 on each of which are formed longitudinally extending teeth 13, 14 which on connection are received against teeth of the other part, faces 15, (16), 19, (20) of the teeth of one part engaging the corresponding faces of the teeth of the other part, and a retaining member 41 on each part extending between the teeth of the part and being rotatable between a position in which the parts are releasable and a position in which they are locked together. As shown, the parts are identical and have cylindrical bodies bifurcated to form the teeth. The retaining member 41 of each part has parallel faces 43, (44) on diametrically opposite sides of its body such that in one position of the members 41 the parts can be disengaged.
Patent GB-487157-A (GB)
Title: Improvements in or relating to projection screens for use in television, cinematography, telecinematography or the like
IPC: G03B21/60
Filed: 1936-12-15
Abstract: 487,157. Projection screens. BAIRD TELEVISION, Ltd., and BAIRD, J. L. Dec. 15, 1936, No. 34376. [Class 97 (i)] A projection screen is formed of intermeshed rods or fibres of transparent material which will pass light without refraction, except at its boundary, and substantially without scattering or optical absorption ; the screen may be rendered reflecting, and may be combined with an additional screen of translucent or transparent material. The fibres may be flexible threads of glass formed by extrusion, and may be interlooped by a knitting process, or may be woven, the warp and weft fibres being identical. The screen may be silvered on one side, or may be used with an additional screen of gelatin, glass, or the like, either in close proximity to it on either side, or applied to it as a coating. The additional screen may have a surface which is coarsened to render it dispersive, and may be interposed between the woven &c. screen and a reflecting layer.
Patent GB-521844-A (GB)
Title: Improvements in or relating to funnels for liquids
IPC: B67C11/02
Filed: 1938-11-25
Abstract: 521,844. Funnels. ARCHBALD, R. H. (Avigdor, R.). Nov. 25, 1938, No. 34386. [Class 125 (ii)] A portable collapsable funnel comprises a mouth piece ring 10 and a base plate 11 of light metal connected by an annular body wall 13 of artificial rubber impermeable to petrol and oil &c. When the funnel is in use the wall 13 is maintained in position by struts 14 hinged to the plate 11. The ring 10 is furnished with suspension eyes 18 to which chains 19 are attached. The funnel is suspended from a hook 20 by an adjustable strap 21.
Patent GB-1028194-A (GB)
Title: Surface area measurement
IPC: G01B11/30
Filed: 1963-09-03
Abstract: 1,028,194. Electric selective signalling systems. SOC. DE PRODUCTION D'APPAREILLAGES AUTOMATIQUES S.p.AA. Sept. 3, 1963 [Sept. 6, 1962], No. 34659/63. Heading G4H. An area F, Fig. 3, to be measured is moved step-by-step on a transparent belt under a row of photo-electric cells C and the cells masked by the area at each step are counted. At each step a pulse turns on a first coldcathode tube T0, Fig. 4, so that clock pulses from a source G cause an " on " condition to pass along a chain of tubes T1 to T10. Each tube produces a pulse in its cathode circuit but only those pulses associated with a masked cell C pass on to a counter N, the other pulses being shunted to earth.
Patent GB-798507-A (GB)
Title: Improvements in fluid flow meters
IPC: G01F1/115
Filed: 1954-11-30
Abstract: 798,507. Measuring fluid flow electrically. HOBSON, Ltd., H. M., and THOMASSON, D. W. Aug. 31, 1955 [Nov. 30, 1954], No. 34676/54. Class 40 (1). [Also in Group XL (e)] Fig. 2 shows a fuel flow meter of the kind described in Specification 752,496 in which a transducer constituted by a vaned rotor is disposed in a conduit through which the fluid flow to be measured is passed. The rotors are rotated at a speed proportional to the rate of flow of the liquid and in one or more of its vanes a magnet is arranged to pass close to a solenoid disposed externally to the conduit so that voltage pulses are produced at a rate proportional to the flow to be measured. The pulses are applied to a cathode-coupled flip-flop circuit comprising discharge tubes V1, V2 and the positive-going portion of the pulse produced across the cathode resistor R2, when the flip-flop reverts to its stable state, is differentiated by the resistorcapacitor circuit C4, R9 and applied to trigger a further cathode-coupled flip-flop circuit comprising tubes V3, V4. The positive pulses produced in the anode circuit of the tube V3 are of constant amplitude and width and the milliammeter M indicates the mean value of these pulses which is directly proportional to their frequency so that the meter has a linear operation scale. The range of the rate meter may be varied by providing a switch which is movable to select one of the two alternative resistor chains R13, R14.
Patent GB-976862-A (GB)
Title: Improvements in or relating to automatic circuit breakers
Inventor: JACKETS ALBERT EDMUND
IPC: H02H3/087
Filed: 1960-10-11
Abstract: 976,862. Semi-conductor switching circuits. GENERAL ELECTRIC CO. Ltd. Sept. 26, 1961 [Oct. 11, 1960], No. 34793/60. Heading H3T. [Also in Division H2] An overload protective arrangement includes a choke 11 and a semi-conductor controlled rectifier 14 connected between a D.C. source 3 and a protected load 44, switch means 31 to apply a starting pulse to the gate of the rectifier 14, and overload responsive means effective to connect a circuit having a low impedance to current pulses across the load and the rectifier to render the rectifier quiescent. In the arrangement shown, the operation of a spring-loaded switch 31 causes a pulse to be supplied to the gate of the rectifier 14 as a capacitor 41 charges. This causes the rectifier 14 to conduct to switch on the supply to the load 44. The supply may be switched off by operation of a spring-loaded stop-and-reset switch 34 which, when operated, connects the gate to a further semi-conductor controller rectifier 19 through a resistor 43 to the positive supply terminal. The rectifier 19 fires and, in series with capacitor 18, provides the low impedance circuit. The current flowing in this path flows through the coil 16 of the choke 11, which is arranged as an autotransformer and induces in the coil 17 of the autotransformer a voltage sufficient to render the rectifier 14 quiescent. Under overload conditions, the voltage produced across a series resistor 10 exceeds that derived from a potentiometer 9 connected across a Zener diode 6. This renders a transistor 20 of a pulse generator conducting so that a pulse is produced from the secondary winding 28 of a transformer 23 and applied to the gate of the rectifier 19 which conducts and renders the rectifier 14 quiescent as described above. The rectifier 19 remains conducting so that an indicator lamp 39 is lit until the switch 34 is operated to momentarily disconnect the circuit through the lamp and render the rectifier quiscent. A simple choke may be used instead of an autotransformer, the choke serving to reduce the current through the rectifier 14 below the holding value necessary to maintain it conducting when an overload occurs. The voltage for operating the pulse generator may be obtained from a resistor connected across the load instead of in series with the load.