baber/WOPTO huggingface dataset:
Patent GB-1431168-A (GB)
Title: Contact lenses handling device
IPC: A61F9/00
Filed: 1972-02-08
Abstract: 1431168 Contact lens handling device HYDRON-LENS Ltd 8 May 1973 [8 Feb 1972] 5699/72 Heading G2J A device for removing contact lenses from' beneath a liquid is made of a wettable material and comprises a rod-like member 10 having an enlarged end portion 12 with a curved surface 16 so dimensioned that it can be pressed gently on to the inner surface of the lens, the lens then adhering to the end portion 12 and being withdrawn from the liquid. At its other end the rod-like member 10 carries a spatula-like flattened curved portion 14 of the same curvature as the end portion 12; this may be used to turn a lens over in the liquid prior to use of the end portion 12 for withdrawing the lens, or may itself be used to withdraw the lens. The device may be made of polypropylene, glass, or nylon.
Patent GB-343748-A (GB)
Title: Manufacture of new cellulose derivatives
IPC: D06P1/642
Filed: 1930-02-21
Abstract: Alkali cellulose, or cellulose which has been treated with alkali such as potash solution is caused to react with a cyanogen halide such as cyanogen bromide or cyanogen chloride, a marked affinity for acid dyestuffs being obtained.  Carbon bisulphide may be used before or with the cyanogen halide, to improve the retention of the cellulose structure.  The reaction may be conducted in the presence of an organic base, e.g. diethylamine, diethylethylenediamine, or piperidine.  The final products may have a more or less high content of nitrogen, and may have a soft grip resembling sheep's wool.  In the examples a solution of cyanogen bromide or chloride in benzene is employed in the cold.  The Specification as open to inspection under Sect. 91 (3) (a) refers to the treatment of the reaction products with water, a base, or an alcohol.  This subject-matter does not appear in the Specification as accepted.
Patent GB-244960-A (GB)
Title: Apparatus for use in the transport of ammunition particularly on shipboard
IPC: F41A9/01
Filed: 1925-03-04
Abstract: 244,960. Beardmore & Co., Ltd., W., and Webster, T. H. March 4, 1925. Loading-appliances. - Trolleys or platforms A for transporting ordnance shells or like objects E are provided with vertical standards C each having a pivoted arm D, the arms when horizontal jointly embracing the shell &c., which is removable laterally when the arms on one side are turned out of the horizontal position by camcontrolled means. The cams are in the form of rails H adjacent to the path of the shell &c. and on each side thereof. The arms D carry spring- controlled levers F provided with rollers G running on the rails to keep the arms horizontal. When the trolley arrives at the loading or discharging station, the rollers G pass into gaps in one or other of the rails and the arms D are then released by the reaction of the springs J on the levers F.
Patent GB-1426215-A (GB)
Title: Roll stands
IPC: D21G1/02
Filed: 1974-02-08
Abstract: 1426215 Rollers ESCHER WYSS Ltd 8 Feb 1974 [8 Feb 1973] 05891/74 Heading F2U In a roll arrangement comprising two rolls 1, 2 one roll (2) comprises a shell 8 rotatably mounted on a non-rotating support beam 7, shell 8 being movably guided in radial directions with respect to the support beam 7 substantially in the plane containing the axes of the two  rollers, the means for movably guiding shell 8, which comprise hydraulic jacks 10, 11 providing the thrust force between the rolls, and the ends of roll 1 and the support beam 7 of roll 2 being supported in common supports 6. The radial movement of shell 8 is provided by mounting the shell on a mounting ring 15 which is in turn rotatably mounted on a guide disc 16 having surfaces 18 which slide on flats 20 of beam 7. The supports 6 each comprise a support block 5 and a support block 13, these having spacers 22 between them and connected together by screws and nuts as shown, two per support 6. The screw fasteners can be disengaged to permit the rolls to be separated, either by raising the upper roll 1, or pivoting it up (Fig. 4, not shown) or by lowering the lower one 2, the rolls here being supported below a supporting structure (Fig. 5, not shown). The roll assembly may be used in paper making, or in the textile industry
Patent GB-867353-A (GB)
Title: Improvements in or relating to semiconductor devices
Inventor: FULLER DENNIS QUINTRELL
IPC: H01L23/29
Filed: 1958-02-24
Abstract: 867,353. Transistors. PYE Ltd. Feb. 24, 1959 [Feb. 24, 1958], No. 5895/58. Class 37. In a junction transistor the emitter and collector electrodes are enclosed by closely surrounding preformed covers of gas impervious material. The covers 5 (Fig. 1), preferably of glass or ceramic, are coated at 6 with silver and provided with recesses for housing the emitter 2 and collector 3, respectively and into which project external leads 8 sealed through the material of the covers. A metallic annular base contact 7 co-operates with the covers to form a hermetically-sealed envelope. In an alternative embodiment the covers are additionally recessed to accommodate the silver coatings so as to leave no air gap between the semi-conductor wafer and the cover adjacent the electrodes. The device is assembled by placing one cover and its associated lead 8 recess uppermost, filling the recess with indium or antimony according to whether the wafer is N or P type, mounting the silicon or germanium wafer over the cover, depositing a quantity of indium or antimony on the wafer opposite the cover recess, and positioning the second cover on the wafer with the deposited activator material within its recess. The assembly is then heated to form alloy junctions beneath the emitter and collector electrodes and to fuse them to leads 8. During the heating the silver coatings are soldered to the wafer and annulus 7 to form a good base contact for the transistor and a hermetic seal between the two covers.
Patent GB-512034-A (GB)
Title: Improvements in and relating to quick-release hose couplings or connections
IPC: F16L37/086
Filed: 1938-02-25
Abstract: 512,034. Pipe couplings. EAGLES, Ltd., W., COOPER, C. W., and WAKEFIELD, W. Feb. 25, 1938, No. 5954. [Class 99 (i)] A quick-release coupling for fire-hose and like fittings is of the kind in which a ring on the plug part of the fitting snaps past one or more spring-pressed pawls 7 in the socket member 1, each pawl being withdrawable either by a direct pull or by rotation of a cam member 4. The member 4 is slidable and rotatable on a boss 2 projecting from the socket 1 and has an enlargement grooved to form a gripping part for rotation and a smaller part having a cam face 6 on its outer end, and a cover 11 enclosing the cams is rotatable on the member 4. The cam face 6 engages a complementary cam member 10 on the stem 8 of the pawl 7, and the cam faces may be of ratchet form or may be formed by V-shaped teeth to permit rotation of the member 4 in either direction. Reference has been directed by the Comptroller to Specification 359,796.
Patent GB-779194-A (GB)
Title: Improvements relating to impact detectors
Inventor: MCCLEMENTS ANDREW
IPC: G01P15/135
Filed: 1954-03-01
Abstract: 779,194. Impact detectors. TILTMAN LANGLEY, Ltd. May 31, 1955 [March 1, 1954], No. 5968/54. Class 106 (3). A mechanism for indicating when a given acceleration of a body has been exceeded comprises a mass movable relative to the body in the direction of the acceleration and an overcentre biasing mechanism arranged to urge the mass initially in this direction and to trip when the given acceleration is exceeded. As shown, the movable mass is constituted by one fixed mass 17, Fig. 2, at one end of an arm 15 pivoted at 16, and a second mass 18, 19 adjustable in position on the arm on the other side of its pivot. By varying the position of the mass 18, 19 the mechanism may be set for differing given accelerations. The initial position of the masses may be varied by an adjustable stop 21, 22. The over-centre biasing mechanism comprises a flexible leaf spring with a central leaf 5 secured in tension to a block 3 and two outer leaves 10 bowed in compression in engagement with a rigid member 8 secured to the block, the free ends of the leaves being joined together in a contact 12 abutting a depending portion 14 of the arm 15 and normally urging the portion 14 upwards, a limiting stop 24, Fig. 3, being provided. When the given acceleration is exceeded the spring system trips into the position shown in Fig. 3 and this occurrence may be determined by visual inspection or by the making of an electrical circuit between the contact 12 and an upturned portion 13 of the base 1. The electrical circuit may include solenoid means operating a counting or resetting mechanism. The overcentre biasing mechanism may be reinforced by magnetic means on the arm 14 and on the free ends of the spring adjacent the contact 12, one of such means being variable in position to vary the magnetic effect. Specification 419,917, [Group XXXVII], is referred to in the Provisional Specification.
Patent GB-822690-A (GB)
Title: Improvements in or relating to motors or pumps
IPC: F01B3/00
Filed: 1958-02-25
Abstract: 822,690. Swash-plate engines. BERGSTEDT, A. J. A. Feb. 25, 1958 [Feb. 28, 1957], No. 5992/58. Class 122 (3). [Also in Groups XXVIII and XXIX] The couple exerted on the shaft of a swash-plate motor by the fact that only the cylinders on one side of the shaft are pressurized at the same time is compensated for by the provision of smaller cylinders 17, one each diametrically opposite one of the main cylinders 15 and pressurized at the same time. Cylinders 15 and 17 are connected by passage 31, groove 29 in shaft 18 and passage 33, and for each pair of cylinders there is a corresponding groove. The cross-sectional areas and positions of the cylinders are so arranged that the couple exerted by a pair of pistons on the shaft is zero. However, pistons 45 and 49 act on oppositely inclined swash plate surfaces 57, 55, whose reactions tend to turn block 11 in the same direction.
Patent GB-374081-A (GB)
Title: Improvements in and method of securing buttons to garments or the like
IPC: A44B1/44
Filed: 1931-02-26
Abstract: 374,081. Buttons. BIFURCATED & TUBULAR RIVET CO., Ltd. and PATERSON, L. M., Foxhill, Wendover Road, both in Aylesbury, Buckinghamshire. Feb. 26, 1931, No. 6089. [Class 43.] In buttons adapted to be attached to material by engagement with a bifurcated rivet 6, the button comprises a front element 1 having a rim or flange 2 and a back element consisting of an outwardly coned disc 3 having its periphery locked beneath the rim 2 and formed at its centre with a hollow shank 3<1>. The front element has integral or in association therewith a central conical anvil 7 and the shank has a rolled outer rim 5 surrounding an opening 4 to receive the rivet such that the material may abut on the rim. and be clamped between it and the rivet head, the body of the rivet being concealed within the material and the hollow shank and held by its legs being splayed by the anvil. The anvil may consist of a separate disc 7 placed between the front and back portions or may be constituted by a conical depression in the front portion.
Patent GB-1170442-A (GB)
Title: Filters for Gases
Inventor: STRIPP PETER WILLIAM
IPC: B01D46/10
Filed: 1966-02-11
Abstract: 1,170,442. Air filter. TECALEMIT (ENG.) Ltd. 10 Feb., 1967 [11 Feb., 1966], No. 6169/66. Heading B1T. [Also in Divisions B5 and Dl] An air filter element comprises fibres of Merino wool and of a copolymer of vinyl chloride and acrylonitrile, and powdered paratertiary-butyl-phenol-formaldehyde, and is treated to develop electrostatic charges to assist filtration. The constituents may be incorporated in a single layer, but in Fig. 1 (not shown) the wool and powder form a batt (8) which is sandwiched between batts (9, 10) of copolymer, and batts (9, 10) are backed by scrims (11, 12). The layers are bonded to form a peripheral lip (6), which is retained between two parts of a filter housing for an I.C. engine intake. In manufacture (Fig. 2, not shown), the powder is added to the fibres (wool or mixture) in or after a carding machine (15) which forms the batt, and the batt passes between corrugated rollers driven at speeds which vary out of phase, or between reciprocating platens, which moves the fibres relatively to develop the charges. Acrylic resin may then be applied as a liquid or vapour, which acts as bonding agent and helps the batt to retain its charges. Passage of air in use may develop further charges.
Patent GB-413795-A (GB)
Title: Improvements in or relating to boxes, drums and like containers
IPC: B65D45/28
Filed: 1933-03-01
Abstract: 413,795. Securing lids to boxes, drums, &c. LAPORTE, Ltd., B., Luton, and HARNAMAN, J., 92, Kingsway, Luton. March 1, 1933, No. 6256. [Classes 18 and 21.] The lid 4 of a box, drum &c. 1 is forced down on to a seating 3 by means of a bar 6 rotated by a handle 8 and having at its ends pins 7 eccentric to the axis of the bar and engaging arcuate lugs 2. The handle 8 may be held stationary by a pivoted arm 9.
Patent GB-776775-A (GB)
Title: Improvements in and relating to multiple drives of road vehicles
Inventor: WATTS LAURENCE DEREK
IPC: B60K17/36
Filed: 1954-02-26
Abstract: 776,775. Motor vehicles. SCAMMELL LORRIES, Ltd. March 3, 1955 [Feb. 26, 1954], No. 6297/55. Divided out of 776,774. Classes 79(2), 79(3) and 79(4). In a motor vehicle having two rear axle assemblies each comprising two axles 13, 14 and each axle being driven by an independent propeller shaft, the drive is transmitted from two engines 1, 2 which are coupled by hydrokinetic couplings 3, 4 to variable speed gears 5, 6 each gear driving through a separate gear train 7 or 8 the propeller shafts on the associated side of the vehicle. As shown the gear trains 7, 8 are disposed in a common casing, and are connectable by a clutch 38. Each train drives a three-part propeller shaft 9 and a one-part propeller shaft 10. The inboard wheels 17 of the axles are removable through a trapdoor provided in the vehicle. The casing of each axle carries a member 22 which is pivoted at its forward end to a member fixed to the vehicle frame. A longitudinal balance beam interconnects adjacent pairs of wheels and is universally jointed to a frame member. Increased manoeuvrability is obtained for the vehicle by biasing the throttle opening on one engine relatively to the other with the gear trains 7, 8 disconnected. As shown, a cab 37 extends entirely across the forward end of the vehicle. In a modification the cab is replaced by two separate cabs with a bonnet disposed between them. Specification 728,123 is referred to.
Patent GB-324271-A (GB)
Title: Improvements in and relating to powdered fuel burners
IPC: F23D1/00
Filed: 1929-02-26
Abstract: 324,271. Hazlehurst, H. E., and Margetson, O. Feb. 26, 1929. Addition to 313,100. Pulverulent-fuel burners. - In the pulverulentfuel burner of the parent Specification, means are provided for dividing the stream of rich mixture into a number of small streams which issue at equidistant points around the circumference of the separating chamber or discharge orifice. The separating chamber c is fitted with a liner composed of a plurality of segments b with ribs a each of which forms a separate helical channel the discharge ends d being spaced equidistantly around the circumference of the chamber c. The ribs may be continued into the rich fuel stream outlet e, the discharge outlets then being spaced equidistantly around the orifice.
Patent GB-852093-A (GB)
Title: Low-tension ignition system for jet engines, gas turbines, oil-fired plants, and thelike
IPC: H01T13/46
Filed: 1958-02-27
Abstract: 852,093. Sparking plugs. SMITSVONK N.V. Feb. 27, 1958 [March 9, 1957], No. 6319/58. Class 7(4). A low voltage ignition system for jet engines, gas turbines, oil-fired plants and the like comprises a sparking device 1 operating through condenser discharges and fitted on an electrically conductive rod or tube which is thin in comparison with the sparking device and which is secured to the inner wall 3 of the combustion chamber, the device being located at the most favourable place relative to the injected fuel jet. The insulation 8 may comprise a plurality of compressed mica rings. The length of voltage supply conductor 5 within the bushing 6 may be fitted therein in a gas-tight manner.
Patent GB-1215913-A (GB)
Title: Geophysical instrument
Inventor: GERRYTS EGBERT
IPC: G01V3/06
Filed: 1969-02-05
Abstract: 1,215,913. D.C.-D.C. converting. SELECTION TRUST EXPLORATION Ltd. 5 Feb., 1969, No. 6325/69. Heading H2F. [Also in Division G1] A converter for use in a ground resistance measuring instrument (see Division G1) incorporates a transistorized inverter and rectifier circuit. A stabilized voltage of 7À5v is applied at terminals 21, 22 to energize a 10,000 c/s. oscillator, incorporating transistor 27 with a parallel tuned circuit 32, 33 in its collector circuit transformer coupled to its base. The oscillator output is applied to a buffer amplifier 38 and thence to a power amplifier 41. The output from the power amplifier is transformer coupled to a rectifier circuit 47, 49 which provides at terminal 46 approx. 250v and at terminal 50 approx. 20v.
Patent GB-1401752-A (GB)
Title: Mixing head
IPC: B01F23/47
Filed: 1974-02-12
Abstract: 1401752 Valves KRAUSS-MAFFEI AG 12 Feb 1974 [23 March 1973] 06325/74 Heading F2V [Also in Division B5] In a mixing device for at least two synthetic material components and having an outlet 16 for connection to a moulding tool a slider 1 is movable from a position, Fig. 1b, in which at least three inlet ports communicate with a mixing chamber 15 to a position, Fig. 1a, in which each inlet port is connected by a by-pass groove in the slider to a respective recirculation conduit. As shown four inlet ports 7a, 8a, 9a, (10a), four outlet ports 11a, 12a, 13a, (14a) and four by-pass slider grooves 3, (4), 5, (6) are provided. In a modification for use with only two components, grooves (23), (24) in the housing each combine the recirculation flow from two slider grooves and feed a respective recirculation conduit. In a further modification two equiangularly spaced inlet ports and slider grooves are provided, two of the inlet ports being externally interconnected and a housing groove (35) interconnecting two slider grooves with a common recirculation conduit.
Patent GB-589455-A (GB)
Title: Improvements in high frequency vibrator
IPC: H01H50/76
Filed: 1945-03-14
Abstract: 589,455. Electromagnetic interrupters. PLESSEY CO., Ltd. March 14, 1945, No. 6372. Convention date, April 14, 1944. [Class 38 (v)] In a high-frequency electromagnetic interrupter the rod 27 carrying the armature 29 and fixed at its other end to the vibratory contact arms 25, 26 is rigid while the side springs carrying the 'fixed' contacts 32, 33 are compliant. A flexible hinge plate 18 supports the vibratory contact structure.
Patent GB-723562-A (GB)
Title: An improved aluminium alloy for bearings
Inventor: REYNOLDS LIONEL ARTHUR
IPC: C22C21/00
Filed: 1952-03-12
Abstract: An alloy, particularly for bearings of lowspeed internal combustion engines, consists of Mg 0.3-0.6 per cent; Sn 5-6.5 per cent; Cu 1-1.3 per cent; Ni 1.5-1.7 per cent; the remaider commercially pure Al containing not more than 0.5 per cent Si, 0.6 per cent Fe, 0.2 per cent Mn, 0.1 per cent Zn and 0.1 per cent Pb as impurities.  For use with hard shafts a bearing may be hardened by heating to 175 DEG  C. for 10 hours and cooling in air.
Patent GB-824158-A (GB)
Title: Improvements in and relating to electrical lamp socket assemblies
IPC: H01R33/09
Filed: 1958-02-27
Abstract: 824,158. Lamp-holders. UNITED-CARR FASTENER CORPORATION. Feb. 27, 1958 [March 5, 1957], No. 6442/58. Class 38 (1). A lamp-holder body consists of an inner member 12, recessed at 26, 28 for the reception of socket contacts 14, 16, and a resilient, bifurcated hollow shell 18 which fits over the member 12 and is retained thereon by interfitting grooves 42 and ribs 40. A mounting bracket 20 is gripped between the member 12 and shell 18 and the wires connected to the contacts enter through the bifurcating slots 48 in the shell and are trapped at the bottoms of said slots by ribs on the end walls of member 12 which travel in the slots. The contacts are inserted from the top of the member 12 and the wires attached to the solder lugs 35 projecting from the lower face of said member. Alternatively, Fig. 15, the contacts 14a with the wires attached thereto may be inserted from the lower face of member 12, in this case being provided with portions which snap over shoulders 54a in the recesses 26a.
Patent GB-541107-A (GB)
Title: Improvements in or relating to straps or handles for bags and the like
IPC: A45C13/26
Filed: 1940-04-10
Abstract: 541,107. Bags &c. BURNEY, R. W. April 10 1940, No. 6450. [Class 133] Handles 17 are attached to bags, suitcases &c. by T- or other shaped links 16 engaging directly or through intermediate links loops 14 at the ends of stem members passing through eyelets or other apertures 12 and formed with heads 15 rotatably disposed thereunder.
Patent GB-643292-A (GB)
Title: Improvements in the manufacture of turbine blades
IPC: B21H7/16
Filed: 1948-03-01
Abstract: 643,292. Making turbine blades. JAMESON, Ltd., J. L., and JAMESON, J. L. March 1, 1948, No. 6486. [Classes 83 (ii) and 83 (iv)] Die-rolling.-A method of producing turbine blades includes the step of hot rolling a series of blades 6 in a length of metal 1. The blades may be fed to and finished in a machine of the type described in Specifications 591,890 and 642,535, [both in Group XXIII]. The bar is preferably heated electrically, by passing it through an induction furnace 10 or by resistance heating, by means of contacts 8, 9, or the rolls 2, 3 may themselves constitute an electrode.
Patent GB-1536962-A (GB)
Title: Stereo-signal decoder circuits
IPC: H04H20/88
Filed: 1976-02-19
Abstract: 1536962 Stereophonic receivers SIEMENS AG 19 Feb 1976 [13 March 1975] 06499/76 Heading H4R In a receiver, Fig. 1 (not shown), for stereophonic transmissions the stereo signal pilot tone (PT) is detected and controls the insertion of attenuation (6) in the sum signal, L+R, channel so as to inhibit the reproduction of the L+R signal on a monophonic transmission, making it easier to search for a stereophonic signal. Preferably a switch (11) is provided to switch out the attenuator to allow reproduction of a monophonic signal when required. As described, the L+R signal is applied to the base of transistor 21 of the emitter coupled pair 17, 21 so that the L+R signal is applied to the common emitter circuit of differential amplifier 14, 15. The collectors and bases of the differential amplifier 14, 15, are coupled respectively to the collectors and bases of differential amplifier 12, 13, to form differently selected pairs so that a switching signal, derived from the presence or absence of the 19 kHz pilot signal in the received signal, switches the L+R signal to or from the common emitter circuit of transistors 24, 25. When a stereo signal is being received the L+R signal at the emitters of transistors 24, 25 splits equally between the transistors to be combined in the collector circuits with applied signals +(L-R) and -(L-R) to provide the output signals U L  and U R , equal respectively to 2L and 2R.