baber/WOPTO huggingface dataset:
Patent GB-523271-A (GB)
Title: Improvements in cylindrical door latches or the like
IPC: E05C1/16
Filed: 1938-12-30
Abstract: 523,271. Fastenings. MARTINS, J. C. Dec. 30, 1938, No. 37797. [Class 44] The bolt 9 of a cylindrical door latch is guided by a stationary guide 5 (the bolt being forked in the form shown), and a member 23 is arranged between the guide 5 and the rear end of the bolt so as to withdraw the bolt when pressed down by an arm 14 on the spindle. In the form shown, the member 23 is attached to the end of the bolt by pins 24 engaging notches in lugs on the bolt, and these lugs are duplicated so that the bolt can be inverted for use with a door of the opposite hand. The member 23 may alternatively be permanently pivoted to the bolt, or may be replaced by several balls lying between the guide 5 and a lug at the rear end of the bolt. The guide 5 and half-bearings for the spindle are formed on semi-cylindrical members inserted into the casing 1 and secured by a spring ring.
Patent GB-819278-A (GB)
Title: Improvements in or relating to reversing valves for refrigeration systems
IPC: F25B41/04
Filed: 1956-12-11
Abstract: 819,278. Refrigerating; heat pumps. CARRIER ENGINEERING CO. Ltd. Dec. 11, 1956 [Feb. 20, 1956], No. 37884/56. Class 29 [Also in Group XXIX] A reversing valve for use in a refrigerating system so that the functions of condenser and evaporator may be interchanged consists of a movable member 30 having an axial bore 31 for the passage of refrigerant and resilient sealing rings mounted in grooves 32 at each end for co-operation with seatings formed in the valve housing 21 and in a union 20 and an end cap 22. The member 30 is operated by a hand lever 39, 35 pivoted at 36<SP>1</SP>, sealed by a bellows 38, and loaded by a spring 40 to provide a snap action from one extreme position to the other. With the member 30 in the position shown refrigerant from the compressor 10 enters the valve housing through/a passage 26 and passes out through a passage 27 to a heat exchange coil 12, a capillary type expansion means 13, and a heat exchange coil 14, the refrigerant then re-entering the valve housing through a passage 28 and passing through the bore 31 to an outlet 15 leading to the compressor inlet. When the valve member 30 is moved to its other position the flow of refrigerant through the circuit 12, 13, 14 is reversed. In a modification, the valve member is actuated by a coaxial stem extending through a hole in the plug 22 and surrounded by a sealing bellows, whilst in a further modification the lever 39 is operated by a bimetallic element in response to variations of temperature in an area which is required to be heated or cooled.
Patent GB-1083658-A (GB)
Title: Improvements in annular convergent-divergent exhaust nozzle
Inventor: LENNARD DEAN JORDAN
IPC: F02K1/12
Filed: 1965-09-07
Abstract: 1,083,658. Jet propulsion nozzles. GENERAL ELECTRIC CO. Sept. 7, 1965, No. 38140/65. Heading F1J. The invention relates to an annular convergentdivergent exhaust nozzle for a jet propulsion engine which comprises a cylindrical shroud member which is movable axially between an upstream position in which it provides an annular convergent nozzle for subsonic operation, and a downstream position in which it provides an annular convergent-divergent nozzle for supersonic operation. The exhaust nozzle shown is for a gas turbine jet engine the turbine of which is indicated at 52 and the annular exhaust gas passage at 56. The nozzle assembly comprises a plug member 10 of double conical form having an upstream divergent surface 12 and a downstream convergent surface 14. The maximum diameter of the plug member may be varied by means of the flap members 17, 18 which are pivotally mounted at 19, 20, the flap members being movable by means of an actuator 30. The outer part of the nozzle comprises fixed generally cylindrical structure 42 which converges slightly at its downstream end 81, the structure being formed with an axially extending cam groove 85. Disposed around the structure 42 is an axially movable shroud member 64 which is movable between an upstream position as shown in Fig. 1, and a downstream position as shown in Fig. 2. To the downstream end of the shroud member 64 are pivotally mounted at 62 a series of flap members 60, the upstream ends of the flap members having pivotally connected thereto brackets 87 which are provided with rollers 86 which engage in the cam track 85 in the support structure 42. In the upstream position of the shroud member 64, Fig. 1, the flap members 60 are in an upstream position in which they provide an annular convergent nozzle for subsonic operation, the outer surfaces 74a of the flap members in this position forming together with the outer surface of the downstream end of the cylindrical support structure 42 a relatively small angle to the longitudinal axis of the nozzle. In the downstream position of the shroud member 64 shown in Fig. 2, the flap members 60 have pivoted about their pivotal mounting points 62 (due to the convergent shape at the downstream end of the cam track 85) so as to provide an annular convergent-divergent nozzle, the outer surfaces 74a of the flap members 60 in this position forming with the outer surface of the shroud 64 a cylindrical surface. The inner surface of the shroud member 64 is provided with cam tracks with which engage sliders secured to the support structure 42.
Patent GB-1311065-A (GB)
Title: Calcium nitrate-urea double salts capable of being scattered and  stored
IPC: C05C13/00
Filed: 1970-08-07
Abstract: 1311065 Calcium nitrate/urea double salts BADISCHE ANILIN- & SODA-FABRIK AG 7 Aug 1970 [9 Aug 1969] 38174/70 Heading C1B Granular double salts of calcium nitrate and urea having improved hardness are obtained by adding 0À5 to 5% of inorganic salt selected from the one or more of the sulphates and carbonates of Na, Mg, Ca, Cu and Fe; silicates and chlorides of Mg, Ca, Cu and Fe; and nitrates of Na, Mg, Cu and Fe.
Patent GB-364813-A (GB)
Title: Improvements in or relating to air compressing devices
IPC: B60C23/10
Filed: 1930-12-19
Abstract: 364,813. Air-compressing apparatus on motor vehicles for purposes other than propulsion. HERSHMAN, M., 61, Downs Road, Clapton, London. Dec. 19, 1930, No. 38376. [Class 79 (iii).] The barrel 17 of an air pump is secured to the slotted web 15 of a bracket 26, adapted to be attached to a convenient part of a motor car whereby the pump may be operated by the engine, by means of a collar 18, screwed extension 19, and nut 20. A bracket described in the Provisional Specification comprises a flat plate bent at right angles at each end and formed with a central tubular boss carrying a driving shaft and gripped by clamps secured to the engine frame. One end of the plate is slotted to receive the pump barrel.
Patent GB-1083779-A (GB)
Title: Production of phosphate coatings on metal
Inventor: FREEMAN DENNIS BRYAN
IPC: C23C22/44
Filed: 1965-09-08
Abstract: A solution for use in forming phosphate coatings on surfaces of steel, zinc or aluminium or any two or all three of these, simultaneously or successively, comprises ammonium primary phosphate, fluoride, and an accelerator consisting of a soluble molybdenum or tungsten compound, and free from alkali metal ions. The solution preferably contains 5 to 50 g/1 ammonium primary phosphate, 0.02 to 10 g/1 ammonium fluoride, 0.05 to 10 g/1 accelerator and 0 to 5 g/1 phosphoric acid with a pH of 2.5 to 6 and a working temperature of 60-180 DEG F.  The preferred accelerator is ammonium molybdate or ammonium tungstate and the fluoride is ammonium fluoride or bifluoride or ammonium fluoborate or silico-fluoride. Cleaning agents such as non ionic surface active agents or emulsified organic solvents as disclosed in Specification 983,925 may also be present.
Patent GB-1330213-A (GB)
Title: Method and apparatus for the production of rare earth metal alloys by electrolysis
IPC: C25C7/02
Filed: 1971-08-18
Abstract: 1330213 Producing rare earth alloys by fused electrolyte process MOLYBDENUM CORP OF AMERICA 18 Aug 1971 [25 Sept 1970] 38710/71 Heading C7B A rare earth metal alloy is produced by electrolysis of a fused salt bath 60 comprising a mixture of alkali and rare earth metal fluorides and containing one or more rare earth metal oxides, using a molten alloying metal, such as Mg, Li, Al, Cs, Rb, Ca or Sr, as cathode 62 floating on the fused salt bath and confined in an inert insulating sleeve 38 e. g. of BN. The bath preferably comprises 33 to 66% rare earth metal fluoride e. g. YF 3 , 10 to 35% alkali metal fluoride e.g. LiF and 10 to 33% alkaline earth metal fluoride e.g. BaF 2 , to which the rare earth metal oxide e.g. Y 2 O 3  is added, e.g. via feeder 48 having funnel 50 scaled in the cell cover 14, at the same rate as that at which it is consumed in electrolysis; fluorides of Na, K and Ca, Sr are also specified. The molten metal cathode may be connected to the DC source 61 by an inert conducting connector 54, e.g. of Mo, W, Ta, Nb or Pt. The anodes 64, 66 may be of graphite. The molten alloy collected at the molten cathode can be removed by ladling through opening 42 or syphoning off through tube 44 for recovering pure rare earth metal by distillation or selective solution.
Patent GB-1413389-A (GB)
Title: Mos type semiconductor ic device
IPC: H03K19/017
Filed: 1973-08-17
Abstract: 1413389 Integrated circuits MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 17 Aug 1973 [18 Aug 1972 21 Aug 1972] 38895/73 Heading H1K [Also in Division H3] In a multi-input complementary gating circuit (see also Division H3), the number of interconnections and hence the chip area is considerably reduced by redesigning the load circuit to use fewer transistors. The chip uses MOS transistors and the interconnections use aluminium wirings of a width 10 Á. In the driving stage D2, the transistors are of the same conductivity type and have their respective drain, source electrodes connected together. The load circuit N uses transistors of opposite conductivity type as well as transistors operating in the enhancement or depletion modes.
Patent GB-879465-A (GB)
Title: Improvements in or relating to electric time switch mechanisms
Inventor: STOLLE ANTHONY DANIEL
IPC: H01H43/10
Filed: 1957-12-16
Abstract: 879,465. Time switches; retractive switches. INTERNATIONAL REGISTER CO. Dec. 16, 1957, No. 39053/57. Class 38 (5). A switch has a time-driven cam controlling main contacts, said cam being manually settable by rotation of a knob which is also axially displaceable against spring action to operate supplementary contacts. The cam 35 is driven by an electric motor 73 via gearing 64, 71 and a friction clutch 66, 67 and is secured to a bushing 53 having a slot 81 engaged by a pin 82 on a shaft 56 carrying a knob 90. A cam follower 42, as described in Specification 879,466, transmits movement to contact springs 22, 24 so as to open and close contacts 28, 30, 32. The shaft 56 is normally biased to the rear by a spring 86, one end of which engages a stop 87 secured to the bushing 53 and the other end of which bears on a collar 83. The knob and shaft may be pulled out so that the collar 83 pivots a lever 95 about recesses 101 which engage in a slot 99 in a fixed bracket 58, thus causing an insulating button 103 to press contacts 108, 109 together.
Patent GB-1457607-A (GB)
Title: Method of and apparatus for the firing of gypsum
IPC: F27B7/08
Filed: 1974-09-06
Abstract: 1457607 Firing gypsum LAMBERT INDUSTRIES 6 Sept 1974 [8 March 1974] 39096/74 Heading C1A [Also in Division F4] Gypsum is heat treated to produce plaster of Paris in at least three zones through which the material is moved, and the material is stirred in its passage through the zones. The material can be recycled from one zone to a preceding zone, to enable the heating to be controlled. Gypsum is fed at 11 to a rotary kiln heated by gases from a burner 16 flowing through tubes 10 parallel to the kiln axes and arranged to be submerged in the charge during part of the rotation of the kiln. Annular partitions 5-8 through which the tubes 10 pass, divide the kiln into zones, and blades in the central orifice of each partition assist in feeding the material from zone to zone. Duct 17, Fig. 4, leading to spiral conduits 13, enable a regulatable amount of the material to be recycled to the preceding zone. Heating gases may be recirculated to the burner 16, and the flow through the tubes 10 may be regulated to control the heating.
Patent GB-1098449-A (GB)
Title: Device for reading a scaler
Inventor: QUIVY PIERRE
IPC: H03K21/08
Filed: 1966-09-01
Abstract: 1,098,449. Counters; electric selective signalling. COMMISSARIAT A L'ENERGIE ATOMIQUE. Sept. 1, 1966 [Sept. 3, 1965], No. 39143/66. Headings G4A and G4H. The order and magnitude of the most significant digit or digits are recorded. Input pulses at 13 are registered in a counter comprising a number of binary-coded decimal orders 11. As each order becomes operative so an associated flip-flop 14 is actuated. When the count is completed the most significant order is detected by the corresponding logic circuit in selector 17 responding to a signal 1 from the associated flipflop 14 and a signal 0 from the next higher flip-flop. The identity of this order is passed to a decoder 25. At the same time selector 17 enables the appropriate circuit to read out the magnitude of the digit through circuit 28. The signals from 25, 28 may pass to buffer circuits 46, 47 when high-speed counting is involved. Two or more digits may be read out in a modification (Fig. 4, not shown).
Patent GB-1041658-A (GB)
Title: Electron beam deflection circuit
IPC: G09G1/04
Filed: 1964-09-25
Abstract: 1,041,658. Cathode-ray tube circuits. WESTINGHOUSE ELECTRIC CORPORATION. Sept. 25, 1964 [Oct. 10, 1963], No. 39170/64. Heading H4T. In an arrangement for reducing pin-cushion distortion on the display afforded by a cathoderay tube (C.R.T.), correction networks 14, Fig. 4, are inserted between the deflexion signal sources 10, 12 and the associated deflection means 20, 22 and each correction network, Fig. 5, comprises at least one voltage controlled non-linear voltage divider, the divider ratio being controlled by deflection signal amplitude. For a given deflection direction, e.g. X, the uncorrected X-deflection voltage E x  is applied at terminal 32, the uncorrected Y-deflection voltage E y  is fed in at terminal 34 and the corrected X-deflection voltage appears at terminal 36. The biasing resistors for diodes 80, 82 ... 88 and 80<SP>1</SP>, 82<SP>1</SP> . . . 88<SP>1</SP> are respectively coupled to junctions 90 and 92 which control the diode conduction potentials. As E x  increases above zero diode 80 conducts first followed by diodes 82, 84, 86 and 88 in that order thereby affecting the divider ratio of first voltage divider 40, 42 ... 48; as E x  increases below zero, diodes 80<SP>1</SP>, 82<SP>1</SP> ... 88<SP>1</SP> operate similarly. The second voltage divider 41, 43 ... 49 is affected similarly by the E y  input at terminal 34, and transistor 70 or 71 conducts to control the potential at junction 90 or 92. Details relating to the design of the network, including the correction factor equation, are given. The values of resistors 51, 53 ... 65 and 51<SP>1</SP>, 53<SP>1</SP> ... 65<SP>1</SP> may be found expeditiously by observing spot displacement at the C.R.T. screen; a television type raster or test pattern may be employed.
Patent GB-1392710-A (GB)
Title: Doors for vehicles
IPC: B62D65/00
Filed: 1971-08-21
Abstract: 1392710 Vehicle doors GKN SANKEY Ltd 11 Aug 1972 [21 Aug 1971 (2)] 39314/71 and 39315/71 Headings B7J and B7B A vehicle door comprises an outer skin 10, Fig. 3, of plastics material having first fixing elements constituted by bosses 23 and 24 projecting from its inner surface; an inner panel 35, Fig. 4, of plastics material releasably secured to skin 10 such as by screws or bolts passing through apertures 46, 47 and 50 in the panel 35 to engage in cylindrical threaded inserts fixed in pockets in flanges 15, 18 and 17 respectively of the skin 10; a Y-shaped reinforcing member 25 interposed between skin 10 and panel 35 and extending between the edges of the door to provide an anchorage for a door latch mechanism, Fig. 7 (not shown), at the end 28 of the stem of the Y and anchorages for door hinges at the ends 29 of the bifurcations of the Y; and second fixing elements constituted by screws or bolts passing through holes in the member 25 at 33a and 34a to engage threaded inserts in the bosses 23 and 24, the holes being oversize to allow adjustment of the relative positions of the reinforcing member 25 and the skin 10 prior to their being rigidly secured together. An upper frame 36 for a window 60 and door mechanisms such as window winding mechanism 59 and door latch control mechanism 61, 76 may be carried solely by the inner panel 35. A vehicle body including a door as described and a body shell may be manufactured by the following sequential steps: securing hinges between the body shell and reinforcing member 25; applying outer skin 10 to member 25; adjusting the position of skin 10 relative to the body shell and fixing the skin 10 to member 25 in the adjusted position; simultaneously painting the exterior of the body shell and of the outer door skin 10; and securing the inner panel 35 to skin 10 having previously mounted door mechanisms on the panel 35.
Patent GB-1303554-A (GB)
IPC: G01S13/524
Filed: 1971-08-23
Abstract: 1303554 Pulse radar RAYTHEON CO 23 Aug 1971 [24 Aug 1970] 39471/71 Heading H4D In a pulse Doppler M.T.I. radar the output of an oscillator 31 is digitally phase shifted by digital error signals which are derived by digitally multiplying, 47, outputs of magnitude and sense detectors 33, 35, selecting the output of the multiplier for a selectable range portion by a gate 49, and integrating the output of that gate. The embodiment, which may be airborne, is a two-pulse canceller but the invention may be extended to other multipulse cancellers. The clutter-rejection "notch" is thereby centred on the average Doppler frequency of clutter at the selected range cell(s). Gate 49 is for ground clutter i.e. short range and gate 51 for precipitation clutter i.e. long range.
Patent GB-900311-A (GB)
Title: Electroluminescent device
IPC: H05B33/14
Filed: 1958-07-16
Abstract: 900,311. Electroluminescence. SYLVANIA ELECTRIC PRODUCTS Inc. July 16, 1958 [July 16, 1957], No. 39763/60. Divided out of 900,310. Drawings to Specification. Class 39(1). The phosphors particles for use in an electroluminescent device are equalized in size to within  20%, e.g. by milling and fractionating by settling through various liquids in order to facilitate matching the voltage gradient to the mean particle size as described in Specification 900,310. Mean particle sizes of starting materials of 10 and 15 microns, and mean particle sizes of resulting materials of 2 to 40 microns are referred to. The phosphor can be zinc sulphide activated by copper, chloride and trace amounts of lead. Specifications 717,170 and 746,502 also are referred to.
Patent GB-979338-A (GB)
Title: Improvements in or relating to the production of concrete piles
Inventor: VICKERS HARRY
IPC: E02D15/04
Filed: 1962-10-20
Abstract: 979,338. Concrete piles. HOLMPRESS PILES Ltd. Dec. 23, 1963 [Oct. 20, 1962], No. 39789/62. Heading E1H. A method of forming a concrete pile as described in Specification 638,682 in which the guide member 6 is reduced in diameter in the vicinity of the solid body 2. As shown, the reduced portion 16 is in the form of a tongue projecting e.g. 6 inches in length from the guide members 6 which may be 4 inches in diameter. It could however be in the form of a tapered portion. Detachable compression member 12 is in the form of a conical shoe as is the solid body 2.
Patent GB-1114814-A (GB)
Title: An improved intra-uterine contraceptive device
IPC: A61J7/04
Filed: 1966-09-06
Abstract: 1,114,814. Intra-uterine devices. G. MAJZLIN. 6 Sept., 1966 [2 June, 1966], No.39840/66. Heading A5R. An intra-uterine device 10 is formed from a resilient wire of plastics or stainless steel material which is bent to form a somewhat flattened spiral, the device being able to be contracted and then expanded along the axis of the spiral so that it may be inserted into the uterus without dilatation. A loop 30 is provided to facilitate removal of the device.
Patent GB-855718-A (GB)
Title: Improvements in or relating to impregnating compositions
IPC: B65G47/00
Filed: 1958-12-11
Abstract: 855,718. Rot- and water-proofing textiles. CHEMISCHE WERKE WITTEN G.m.b.H. Dec. 11, 1958 [Dec. 23, 1957], No. 40023/58. Class 140. Cotton, rayon, jute, wool and other textiles are rot-proofed and waterproofed by treatment with a composition containing a mineral or vegetable wax, as waterproofing agent and 5- 15% of the weight of the agent of a chlorinated phenyl ester of a fatty acid of 6-12 C atoms having dissolved therein 1-5% of the weight of the agent of a chlorinated phenol. The latter preferably comprises pentachlorphenol or tetrachlorphenol or a mixture of such phenols, and the ester is preferably derived from the same phenols. The composition preferably contains an aluminium salt and is in the form of an aqueous emulsion. An example describes the addition of a mixed melt of paraffin wax, montan wax, pentachlorphenyl ester of fatty acids of 6-12 C atoms, and pentachlorphenol to a hot solution of size, and the further addition of aqueous aluminium triformate and acetic acid, to form a concentrate which is homogenized and foruse diluted to one fifth concentration. Reference has been directed by the Comptroller to Specification 613,274.
Patent GB-1322644-A (GB)
Title: Coupling device with spring locking detent means
IPC: F16L27/113
Filed: 1971-08-26
Abstract: 1322644 Pipe coupling E B WIGGINS Inc 26 Aug 1971 [3 Feb 1971] 40071/71 Heading F2G In a connector for coupling aligned pipes or members 10, 11 cylindrical, screw-threaded coupling parts 17, 19 are tightened to urge sealing 0-rings 24, 26 into sealing engagement around the pipe ends. The coupling parts 17, 19 are further interconnected by detent means 27 mounted on one part 19 on which resilient fingers 30 successively engage notches 36 on the other part 17 to releasably oppose relative rotation of the parts 17, 19 at spaced dwell points. The fingers 30 are shaped to provide a larger force opposing de-coupling relative rotation of the parts than that opposing coupling relative rotation. As shown, a collar 16 engages flanges 14, 15 to prevent separation of the pipes under high fluid pressure, the flange members 12, 13 being attached to the pipes 10, 11 by swaging, for example. Alternatively, the pipes may have flanges or beaded projections formed directly at the ends. The O-rings 24, 26 are compressed between the collar 16 and washers 23, 25 by an inner annular sleeve 22 carried on the part 19 which may be a nut having a flange 21. The sleeve 22 is swaged at 34 around the inner periphery of the nut to hold captive the detent member 27 which is constrained to rotate with the nut 19 by an outstanding lug (28<SP>1</SP>) (Fig. 5, not shown). The ends of resilient fingers 30 on the detent member 27 which is of spring steel are curved to present different ramp inclinations (a, b), (Fig. 6, not shown), to the edges of the notches 36 so that the finger moves more easily in one direction over the notches than in the other. Thus on tightening the nut 19 on the screw threaded part 18 the shallow ramp side 31 of the finger rides over the notches with relatively small force opposing the rotation. When the nut 19 is rotated to decouple the parts 17, 19 the sharply inclined ramp side 32 of the finger engages the notches to oppose the rotation more strongly. As the nut is tightened during coupling, the fingers engage the notches with more force and the coupling requires a correspondingly greater force to untighten it. The coupling parts may be of anodized aluminium, brass, stainless steel or magnesium alloys whilst the O-rings may be of oil-resistant synthetic rubber.