baber/WOPTO huggingface dataset:
Patent GB-641510-A (GB)
Title: Improvements relating to liquid fuel injection nozzles
Inventor: BARRINGTON RALPH
IPC: F23D11/38
Filed: 1948-02-16
Abstract: 641,510. Liquid fuel nozzles. LUCAS, Ltd., J. Feb. 16, 1948, No. 4437. [Class 75(i)] [Also in Group XXIX] In a liquid fuel injection nozzle with tangential passages delivering to a swirl chamber p the passages are arranged so that turbulence is set up at an intermediate point in each passage. As shown the tangential passages are formed in a plate f secured in a body part a between a plate c having the nozzle orifice e and a backing plate g having ports h communicating with the equal diameter inlet ends n of the tangential passages. At an intermediate point the passages are reduced to a smaller bore o thereby providing shoulders q setting up turbulence.
Patent GB-229677-A (GB)
Title: Improvements in and relating to extension frames for motor vehicles
IPC: B60P3/42
Filed: 1925-02-18
Abstract: 229,677. Olson, N. L. Feb. 18, 1924, [Convention date]. Frame constructions.-Relates to means for securing an extension chassis to the main chassis, and for extending the driving-shaft. A standard extension chassis is provided and is used with or without a suitable drive shaft extension, according to the length of wheel base desired. The channel side frames of the extension chassis 14, Fig. 2, are secured to the main chassis 1 by U bolts 16 and by brackets 18 which are bolted in the end transverse member 4 of the main chassis and connected with the side frames of the extension chassis, the ends of the member 4 extending within the channels 14 as shown in the detailed view iu Fig. 10. In lengthening the wheel-base to receive the extension chassis, the transmission shaft 45 and casing 46, Figs. 2 and 3, are disconnected from the universal joint at 49 and extension members 66, 61 are inserted. For this purpose, a transverse member 50 is secured to the main chassis forming a support for the outer member 64 of a universal joint in the transmission shaft housing.
Patent GB-1163200-A (GB)
Title: Improvements in or relating to Magnesium Base Alloys
Inventor: GITLESEN GUNNAR
IPC: C22C23/02
Filed: 1967-01-30
Abstract: 1,163,200. Magnesium base alloys. NORSK HYDRO-ELEKTRISK KVAELSTOF A.S. Jan.30, 1968 [Jan.30, 1967], No.4541/67. Heading C7A. An alloy comprises, in weight percents:- Al Z - 10 Ca 0À5 - 2À5  Mn 0À001 - 0À5 Cu up to 0À5  Si up to 0À5  Zn up to 0À3  and optionally conventional amounts of Be, the balance being magnesium. The alloy may be used for casting and is less liable to hot cracking than conventional alloys of similar composition but containing greater amounts of zinc. The Specification refers to magnesium alloys claimed in Specification 847, 992.
Patent GB-235501-A (GB)
Title: A wind driven windscreen wiper for motor vehicles
IPC: B60S1/06
Filed: 1925-02-19
Abstract: 235,501. McGrath, R. O. Feb. 19, 1925. Windows and the like, cleaning. - Winddriven apparatus for oscillating a wiper over the windscreen 13 of a vehicle comprises an airpropeller 1 mounted on the vehicle roof 16 and driving a worm 3 meshing with a worm-wheel 5 on a vertical shaft 4 passing through the roof. A worm 6 mounted on the lower end of this shaft meshes with a worm-wheel 7 mounted on a bracket 17 fixed to the frame of the screen, and a crank-pin 8 on the worm-wheel 7 is connected by a link 9 with the crank 11 of the wiper 12.
Patent GB-1413982-A (GB)
Title: Foam producing apparatus
IPC: G05D11/13
Filed: 1972-01-19
Abstract: 1413982 Generating foam R V M STAPLE 19 Jan 1973 [19 Jan 1972] 4584/74 Heading B1C The subject-matter is identical with that of the Parent Specification but the claims relate to the maintenance of the flow rates of the liquid constituents within a predetermined ratio range.
Patent GB-1493874-A (GB)
Title: Glycols containing two perfluoroalkylthio groups and process for making them
IPC: C07B61/00
Filed: 1975-02-03
Abstract: 1493874 Bis-(perfluoroalkylthio) glycols CIBA-GEIGY AG 3 Feb 1975 [4 Feb 1974 (2)] 4590/75 Heading C2C Bis-(perfluoroalkylthio) glycols of general formula wherein Rf is a C 1-18  straight or branched perfluoroalkyl group optionally substituted by a C 2-6  perfluoroalkoxy group; R 1  is a C 1-12  straight or branched alkylene group; C 2-12  alkylenethioalkylene, alkyleneoxyalkylene or alkyleneiminoalkylene group where the N-atom bears an H atom or C 1-6  alkyl group; R 2  and R 3  are each straight or branched C 1-12  alkylene optionally substituted by one or two phenyl or cyclohexyl groups, or are a group in which m is an integer of 1-12, k is an integer of 2-6 and r is an integer of 1-40; R 4  is H, C 1-24  alkyl or C 1-24  alkanoyl or alkenoyl optionally substituted by 1 to 3 Cl, Br or carboxyl groups, or alkanoyl substituted by phenyl or naphthyl which rings are optionally substituted by 1 to 3 Cl, Br, C 1-6  alkyl or alkoxy groups, or C 2-6  alkanoylamino or alkenoylamino groups or the mono- or di-Cl or Br derivatives thereof or R 4  is benzoyl optionally substituted by 1 to 3 Cl, Br, C 1-18  alkyl, C 1-8  alkoxy or C 2-6  alkanoylamino or alkenoylamino or the mono- or di- Cl or Br derivatives thereof, are prepared by reacting a thiol Rf-R 1 -SH in an amount of 2À0-2À5 moles with 1 mole of an acetylenic compound at 40‹-100‹ C. in the presence of 0À5-20 mole per cent of an azo-type free-radical catalyst, e.g. azobisisobutyronitrile. Amongst numerous examples compounds are prepared. 1,1,2,2-tetrahydroperfluorotridecanethiol is prepared by reacting C 11 F 23 CH 2 CH 2 I with thiourea. (CF 3 ) 2 CF(CF 2 ) 6 CH 2 CH 2 SH is similarly prepared. 1,1,2,2-tetrahydroperfluoroundecanthiol is obtained from C 9 F 19 CH = CH 2  and H 2 S.
Patent GB-1114266-A (GB)
Title: Oil cleaner
IPC: F01M1/10
Filed: 1966-02-02
Abstract: 1,114,266. Cartridge filter. J. J. RUSSO and M. S. LaMONICA. 2 Feb., 1966, No. 4605/66. Heading BID. An edge paper roll oil cleaner comprises a generally cylindrical container 10 with a removable top plate 12 and bottom, an oil inlet 23 and outlet 25, the bottom having an oil receiving groove 29 located in its interior surface communicating wih outlet 25, an oil cleaning paper roll cartridge 22 being positioned over the bottom and supported by a hollow support tube 17 which rests on the bottom and which extends axially along the cleaner and a circular plate 41 surrounding the support tube, the plate 41 being provided with a plurality of holes 40 which are positioned over the oil receiving groove, there being oil passages 65 milled or cast in plate 12 to allow passage of oil from the top of tube 17 to the top of the cartridge 22, a portion of plate 12 being in contact with the periphery of the cartridge 22 to prevent oil flowing down the outside of the cartridge, the inlet 23 leading into tube 17. The filtration flow is thus through inlet 23 up tube 17 into passages 65 down through paper roll 22 and apertures 40 into groove 29 and out through 25.
Patent GB-267483-A (GB)
Title: Method of rolling metals and apparatus therefor
IPC: B21B39/16
Filed: 1927-02-18
Abstract: 267,483. Karius, K. March 11. 1926, [Convention date]. Addition to 245,741. Rods and bars.-In rolling metal sections by drawing the section through a curved guide to turn over a foot to form an " undercut " groove as described in the parent Specification, the drawing rolls instead of being placed at the exit of the guide are located at the entrance to the guide.
Patent GB-1208812-A (GB)
Title: Electrophoretic imaging process
IPC: C09B45/34
Filed: 1968-01-30
Abstract: 1,208,812. 812. Photo-electrophoretic imaging. XEROX CORP. Jan.30, 1968 [Jan. 30, 1967], No.4726/68. Heading G2H. [Also in Division H1] A photo-electrophoretic imaging suspension comprises an insulating carrier liquid having dispersed therein a photo-sensitive pigment of formula wherein R is selected from H, CN, NO 2  and for at least two of the radicals R being other than hydrogen. The photo-sensitive pigment must have its principal light absorption band coincident with its principal photo-sensitive response. The preferred pigments are 1, 3, 6, 8 tetracyano; 1, 3 dicyano- 6, 8 - dibromo; 1, 3, 6, 8 tetraamino; 1, 3 dinitro- 6, 8- dicyano; 1, 6- dicyano; 1, 3, 6, 8 tetrabromo; 1, 3, 6, 8 tetranitro, and 1 cyano- 6 nitro pyrene. The insulating carrier liquid may be decane, dodecane, n-tetradecane, paraffin, beeswax, kerosene or a thermo-plastic material. The suspension may comprise three different coloured pigments to give a full colour reproduction e.g. a phthalocyanine, or a naphthol or naphthoic acid derivative. The suspension may be formed on a Nesa glass plate and traversed by a baryta paper electrode during exposure to an image. The image-formed by the suspension may be fixed using paraffin wax.
Patent GB-778551-A (GB)
Title: Improvements in or relating to wiring ducts for the reception of electric conductors
IPC: H02G3/04
Filed: 1956-02-16
Abstract: 778,551. Conduits. SQUARE D CO. Feb. 16, 1956 [Feb. 18, 1955], No. 4814/56. Class 36. A wiring duct comprises an insulating channel 1 of U-shaped cross-section, the opposed sides 3, 4 of which have a multiplicity of openings 5 through which conductors can be passed, and a cover 6 to which brackets 9 are attached which are engageable with the sides 3, 4 of the channel. The cover 6 is preferably of insulating material and is U-shaped in cross-section, the brackets 9 being -secured thereto at regular intervals by studs 14. The legs 12, 13 of the brackets have inwardly directed tongues 16 which engage in certain of the openings 5, the inherent resilience of the. channel 1 tending to move the legs 3, 4 outwardly into engagement with the legs 12, 13. The rear wall 2 of the channel I has spaced slots through which plastic rivets extend, which rivets also pass through holes in a support 17.
Patent GB-977959-A (GB)
Title: Improvements in or relating to servo motor systems
Inventor: MARSHALL CHARLES EDWARD
IPC: H02P7/30
Filed: 1962-02-08
Abstract: 977, 959. Automatic control of loop tension. POTTER INSTRUMENT CO. Inc. Feb. 8,1962, No. 4893/62. Heading G3R. In a nitroactive control system the power to a uno motor is controlled by a device responsive firstly to signals derived from a square wave current and signals generated by a transducer and secondly to the square wave current itself. As shown, a potentiometric transducer 199, is mechanically coupled to a tensioning arm of a magnetic tape transport system, not shown, and a D.C. servomotor 244 drives a tape take-up reel for holding the tape which passes over the tensioning arm. The feedback loop from the servo-motor to the transducer, including a take-up reel, a tape and a tensioning arm, is indicated by a connected 246. Error signals from the transducer 199 are fed through a transducer emitter-follower 201 to a lead network 204, comprising a resistor shunted by a capacitor, which superimposes a rate of change of error signal on the error signal which is fed to a differential amplifier 206. The differential outputs are fed to saturable reactors 209, 212 which are simultaneously supplied with a square wave signal from a square wave generator through lines 211, 213. The square wave signals cause the reactors to saturate while the error pulses tend to reduce the saturation so that pulses are applied through transistor emitter-followers 218, 221 and transistor amplifiers 220, 223 to a transistor pushpull driver stage the output of which is fed to a toroidal transformer 228 having two opposed outputs which are fed to inhibit circuits 231, 232 wherein they are combined with square wave signals from the square wave generator. The resultant signals control silicon rectifiers 237, 238 to determine the energization of fields 242, 243 for that direction of rotation of servomotor 244 which will rotate the reel to restore the tape tension to the predetermined value.
Patent GB-1193206-A (GB)
Title: Improvements in or relating to Electrical Instrumentation and Switchgear Panels.
IPC: H02B1/36
Filed: 1968-01-31
Abstract: 1,193,206. Two-part couplings. LA TELEMECANIQUE ELECTRIQUE. 31 Jan., 1968 [6 Feb., 1967], No. 4947/68. Heading H2E. [Also in Division H1] Electrical component trays 31, Fig. 11, for slidably mounting in housings 2, Fig. 2, have rotatable spindles 60 engaged by detachable handles 125 at the front of the tray and having laterally extending studs 73 engageable with helical grooves in fixed members 120 to complete the final inserting movement during which contact clips 15-24, Fig. 12, at the rear of the tray engage supply bus-bars 11 or output blades 19, Fig. 13. Each tray comprises a pair of parallel longitudinal profile sections 32 which are guided on grooved rails 37 fixed to the casing. The spindle 60 also carries a pair of cams 92, Fig. 7, having opposed helical grooves for raising and lowering a plug 82 into engagement with a socket connector 49 provided for the control circuitry and separately engaged on further rotation of the shaft 60 after the tray is fully home.
Patent GB-525092-A (GB)
Title: Improvements in or relating to electric indicating or repeating instruments
IPC: G08C15/04
Filed: 1939-02-15
Abstract: 525,092. Current meters. SMITH & SONS (MOTOR ACCESSORIES), Ltd., S., and MOSS, E.. B. Feb. 15, 1939, No. 5012.. [Class 37] [Also in Group XXXV] An indicating or repeating instrument of the resultant field type has the rotor magnetically biassed to a predetermined position when the instrument is de-energized in order to avoid a misleading indication if the supply is interrupted. As shown, the rotor 15 is a permanent magnet and co-operates with a fixed magnet 19 for bias purposes. Magnet 19 is well spaced from the rotor to prevent interference with normal working, but its flux may be neutralized by an electromagnet 22 energized with the stator. In the case of wound rotors, a permanent magnet is mounted thereon and cooperates with pole pieces of a fixed magnet arranged to avoid axial thrust on the rotor. The Provisional Specification also describes gravity bias.
Patent GB-697922-A (GB)
Title: Improvements in or relating to electron and ion discharge tubes
IPC: C03C27/00
Filed: 1951-03-01
Abstract: 697,922. Glass-to-metal seals. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. March 1, 1951 [March 4, 1950], No. 5039/51. Class 36. [Also in Group XL (a)] A method for effecting joints in discharge tube envelopes comprises the steps of machining the surfaces to be joined, coating them with a thin metallic film which is then polished to an optical finish, fitting them together to form the closed envelope and evacuating, and finally, while evacuated, heating sufficiently to cause molecular diffusion of the metal layers into each other, forming a permanent joint. This temperature is below the softening point of the envelope materials, and, since the envelope is evacuated, oxidization of the electrodes is avoided. The method may be used for joining glass, ceramic, or metal envelope sections, or combinations of these ; when one section is metal, then only the non-metal surface need be metal-coated. The coating may be silver, gold or platinum, painted on in colloidal suspension, or electroplated. The surfaces joined may be curved instead of flat. The silvering may be continued over part of the envelope surface to form current leading-in means, as shown on envelope sections I and J, Fig. 3.
Patent GB-438504-A (GB)
Title: Improvements in or relating to superheterodyne receivers
IPC: H03G3/22
Filed: 1934-02-15
Abstract: 438,504. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Roberts, W. Van B.; 155, Hodge Road, Princeton, New Jersey, U.S.A.) Feb. 15, 1934, No. 5070. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 16, 1934]. [Class 40 (v)] A superheterodyne receiver includes means for simultaneously varying the high-frequency gain and the strength of the local oscillations applied to the frequency changing stage. The cathode circuits of the radio-frequency and intermediate-frequency amplifiers 1, 5 respectively, include biassing resistances rl, r2 respectively, which are taken to tappings 4, 7 respectively on the fixed portion R2 of a potentiometer connected across the main H.T. supply. The portion R of this potentio-. meter is variable and thus controls the grid bias and amplification of the valves 1, 5. In addition, variation of resistance R also controls the potential at the point 19 on a fixed potentiometer R1 which supplies the anode potential for the local oscillator 8, and hence varies the amplitude of the oscillations produced thereby.
Patent GB-1456182-A (GB)
Title: Containers
IPC: B65D1/16
Filed: 1975-02-06
Abstract: 1456182 Portable containers NATIONAL CAN CORP 6 Feb 1975 [5 April 1974] 5142/75 Heading B8D A deep-drawn and ironed metal can comprises a bottom wall which is integrally connected with a cylindrical sidewall 12 through an annular outwardly directed arcuate bead 16 and which is provided with an annular inwardly directed arcuate bead 26 joined to the bead 16 by an interconnecting annular portion 29 of arcuate cross-section presenting a convex surface to the can interior. The central portion 30 of the bottom wall is flat and connected to the bead 26 by a further arcuate portion 32. Specific relationships between various dimensions and angles of the bottom wall configuration are defined.
Patent GB-676256-A (GB)
Title: Improvements in and relating to driving mechanism for automatic clothes washing machines
IPC: D06F37/36
Filed: 1950-03-02
Abstract: 676,256. Washing- and drying-machines. BRITISH THOMSON-HOUSTON CO., Ltd. March 2, 1950 [March 12, 1949], No. 5324(50. Drawings to Specification. Class 138 (ii). The subject-matter of this Specification is the same as that described in Specification 676,244 except that in the present case the centrifugally operated valve for preventing stalling of the driving motor is omitted. Specifications 625,328 and 646,403 are referred to.
Patent GB-466971-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B04B15/06
Filed: 1936-02-21
Abstract: 466,971. Centrifugal separators. FAWCETT, H. W. Feb. 21, 1936, Nos. 5326 and 27266. [Class 23] In a centrifugal separator with a disc pack, washing liquid is fed to the edges of the discs near the bowl axis and is evacuated in an outward direction after issuing from the discs. In one form, the non- rotating inlet pipe 16, shown on the right-hand side of Fig. 1, which supplies the milk or like liquid during normal working, canbereplaced by the apertured tube 30 shown on the lefthand side of the Figure, which supplies the wash - ing water. The outer peripheries of the discs 5 are mounted in .members 11 between conical bays in the bowls, and each bay has a discharge aperture 12 controlled by a valve 21, Fig. 3, as described in Specification 460,362. The spring 24 and the weight of the parts are arranged so that at the normal running speed of the machine the aperture 12 is closed, while at or below a predetermined speed, which is less than the normal speed, the valve remains open. When the treatment of the milk or other liquid is finished, the supply is stopped and the speed of the machine is reduced to open the valves 21 to discharge the contents of the bowl. The pipe 16 is then replaced by the pipe 30 so that the washing liquid can be supplied to the discs and bowl. This liquid is directed through a ring of apertures 33 to the discs 5 while the apertures 34, 34<a> direct it to clean the distributer space 17. The total cross-sectional area of the apertures 33, 34, 34<a> is approximately equal to the cross-sectional area of the pipe. By means of a rod 66 the pipe 30 can be adjusted axially, and the cup 69 can be rotated to vary the effective areas of the inlet openings 68, 70. The discs 5 are divided into groups by discs 5<b> which project radially inwards beyond the remainder. The distance pieces between the discs 5 are of small dimensions, and the combined areas of the apertures 12 are greater than one threehundredth part of the combined areas of the apertures 33, 34, 34<a>. The washing liquid discharged through the tubes 77, 78 whirls into the chambers 63, 62 to clean the walls. In the modification shown in Fig. 3, the discs 5 are mounted at their inner peripheries on the rotating tube 40 provided with slits 41 which enable the disc pack to be covered completely with washing liquid. The discs are extended inside the cream level and the liquid jets are projected through the slits 41 on to the extended parts so that thev spread out to cover the disc surfaces by the time the cream level is reached. In a further modification, the upper part of the bowl is removed and the disc pack is clamped by the nut 80, Fig. 4, The washing liquid is sprayed through a series of holes 41 which are arranged in a staggered manner so that portions of adjacent rows of holes occupied by liquid overlap in the direction of rotation.
Patent GB-234895-A (GB)
Title: Improvements in microphones
IPC: H04R9/04
Filed: 1924-03-03
Abstract: 234,895. Round, H. J. March 3, 1924. Drawings to Specification. Magnetic instruments; diaphragms.-In a microphone comprising a spiral coil secured to an annular support, e.g. of tissue paper or rubber, suspended in a magnetic field, the weight of the coil is made substantially equal to the combined weights of the support and of the adhesive securing the coil to the support. To adapt the coil for use in series with the primary of a step-up transformer used in conjunction with an amplifying valve, the resistance is so chosen that the damping resistance usually shunted across the secondary of the transformer may be dispensed with.
Patent GB-1031477-A (GB)
Title: A machine for cultivating the soil
IPC: A01B9/00
Filed: 1963-02-11
Abstract: 1,031,477. Agricultural implements. H. VISSERS. Feb. 11, 1963 [Feb. 19, 1962], No. 5523/63. Heading A1B. A machine for cultivating the soil comprises three digging units 7 as described in Specification 885,938 pivotally mounted on a wheeled frame 3 the two outer units 7 being raised by a hydraulic cylinder. A shaft 13 on the frame 3 is driven by a power shaft 12 on the tractor and is connected to the units. In a modification the units are mounted on a tractor the two outer units being mounted between the front and rear wheels of the tractor.
Patent GB-899232-A (GB)
Title: A method for removing stresses in cables made from synthetic, linear polyamides, and cables thus treated
IPC: H01B3/30
Filed: 1961-02-15
Abstract: Stresses in cables made from synthetic linear polyamides are removed by treating the cables with hot, acid-free mineral oil. The temperature of treatment is preferably between 100 DEG C. and 10 DEG C. below the melting-point of the polyamide from which the cable is made.  The oil may contain an antioxidant.  The treatment may be applied in a continuous or a discontinuous manner to cable which may be relaxed or under tension.  In an example, a cable of poly-S -caprolactam is treated with Tellus No. 41 oil at 140 DEG C. The tensile strength after treatment is compared with that of similar cable treated with hot water.  The treated cable contains 12% by weight of oil.ALSO:Stresses in cables made from synthetic linear polyamides are removed by treating the cables with hot, acid-free mineral oil. The temperature of treatment is preferably between 100 DEG C. and 10 DEG C. below the melting-point of the polyamide from which the cable is made.  The oil may contain an anti-oxidant.  The treatment may be applied in a discontinuous or a continuous manner to cable which may be relaxed or under tension.  In an example, a cable of poly-e -caprolactum, is treated with Tellus No. 41 oil at 140 DEG C.  The tensile strength after treatment is compared with that of similar cable treated with hot water.  The oil-treated cable contains 12% by weight of oil.