baber/WOPTO huggingface dataset:
Patent GB-1153292-A (GB)
Title: Improvements in or relating to the Cultivation of Micro-Organisms
Inventor: VINH KY CHARLES
IPC: C10G32/00
Filed: 1965-06-28
Abstract: 1,153,292. Yeast &c. BRITISH PETROLEUM CO. Ltd. June 3, 1966 [June 28, 1965], No. 27284/65. Heading C6F. A micro-organism is cultivated in the presence of a feedstock consisting of or containing a straight chain hydrocarbon, preferably paraffinic, aqueous nutrient medium and a gas containing free oxygen, thereafter a part of the aqueous nutrient medium is separated, the remaining product (or part thereof) comprising the micro-organism in admixture with at least part of the residual hydrocarbon feedstock and at least part of the residual nutrient medium, is treated with a surface active agent consisting of or containing a non-ionic detergent, and the mixture so obtained is subjected to a separation treatment (centrifuging and/or filtering) for the recovery of a fraction which predominates in hydrocarbon, a fraction which predominates in an aqueous medium and a fraction consisting of or containing a mixture of the micro-organism and water. The non-ionic detergent may be: (i) compounds represented by the formula A-(CH 2  CH 2 O) n H wherein A is an alcohol residual group or acid residual group and the value of n lies within a range varying according to the residual group as follows: lauric alcohol (7-10), myristic alcohol (7À5-11), oleic alcohol (13-15), palmitic acid (14-17), oleic acid (8À5-11) and stearic acid (15À5-19); (ii) a condensation product of ethylene oxide with a mixture of lauric alcohol or myristic alcohol having an average of 2 to 10, preferably 8 -5, ethylene oxide groups per terminal group; or (iii) the sucrose ester of tallow. The aqueous nutrient medium may be separated by decantation, being replaced in part by water. The fraction containing the microorganism may be extracted with an azeotropic mixure of n-decane and isopropanol, and drum-dried.
Patent GB-935157-A (GB)
Title: Improvements in or relating to door mats gratings or foot mats
IPC: A47L23/24
Filed: 1961-07-28
Abstract: 935,157. Door mats; gratings. E. ARENS. July 28, 1961, No. 27382/61. Class 142 (4). A grating mat comprises steel bars d surrounded by rubber or plastic casings a. The bars may be undulating and are contained in a frame f.
Patent GB-304167-A (GB)
Title: Improvements in arrangements for supplying current for the operation of thermionic valve systems
IPC: H02M1/14
Filed: 1927-10-15
Abstract: 304,167. British Thomson-Houston Co., Ltd., Young, A. P., and Hutt, J. Oct. 15, 1927. Converting pulsating currents into steady continuous currents. - In a system for supplying, from a source S of variable voltage, steady anode voltages for the operation of a thermionic-valve power amplifier, in order to provide different voltages for the anodes of different valves VI, V2 choke coils 1, 2 shunted by condensers 4, 5 are connected in series across the source. A resistance 3 is connected in series with the coils.
Patent GB-1004342-A (GB)
Title: Method for reinforcing the image on a lithographic printing plate
IPC: B41N3/08
Filed: 1962-07-17
Abstract: The lacquer described in the parent Specification is modified by the incorporation of phosphoric acid. Specification 723,242 also is referred to.
Patent GB-1379961-A (GB)
Title: Methods of treating polyimides
Inventor: DE ANGELO M
IPC: H05K3/38
Filed: 1972-06-13
Abstract: 1379961 Etching WESTERN ELECTRIC CO Inc 13 June 1972 [14 June 1971 19 May 1972] 27557/72 Heading B6J A polyimide surface is etched with an aqueous solution of ethylene diamine and a basic compound selected from the group consisting of (a) a carbonate, hydroxide, cyanide, borate, phosphate, pyrophosphate, sulphite, sulphide or silicate of an alkali metal such as sodium, potassium, lithium, rubidium or caesium; (b) a carbonate, hydroxide, cyanide, borate or sulphide of ammonia; (c) alkali metal alkoxides where the alkylate portion has 1-4 carbons; (d) a quaternary ammonium hydroxide of the formula (R1, R2, R3, R4)-N-OH, where R1 and R2 are each an alkyl group of 1-4 carbons, R3 is an alkyl or alkenyl group of 1-18 carbons, and R4 is an alkyl or alkenyl group of 1-18 carbons, a phenyl, an alkyl-phenyl group where the alkyl portion has 1-18 carbons, a benzyl, or an alkyl-benzyl group where the alkyl portion has 1-18 carbons. A preferred basic compound is sodium hydroxide. The polyimide etched is made from the anhydride of pyromellitic acid and 4,4<SP>1</SP>-diaminodiphenyl ether. After etching to roughen its surface, the polyimide is subjected to electroless plating.
Patent GB-385924-A (GB)
Title: An improved rotary mop or the like for cleaning, polishing and like apparatus
IPC: A47L11/19
Filed: 1931-10-03
Abstract: 385,924. Rotary mops. TURNER, W. H., 23, Ellesmere Road South, Chorltoncum-Hardy, Manchester. Oct. 3, 1931, No. 27641/32. Divided on 385,684. [Classes 19 and 60.] A hollow core 1 is formed with slots 2 of key-hole shape adapted to receive doubled. flaps 8 of felt, hair, fibre, rubber, leather, velvet, cotton fabric or like material, the flaps being retained in place by wires 10. The flaps may be split, as shown at 9. A spring-pressed plunger 3 is provided for attachment of the core to a shaft which is grooved to receive the plunger. The core has a receptacle closed by a stopper 6 and adapted to contain polishing or like preparation which is fed to the flaps 8 through holes 7. The flaps may be adapted to come into contact with solid blocks of a buffing preparation as they rotate. Such an arrange. ment may be used instead of or in addition to the reservoir in the mop. Specification 385,684 is referred to.
Patent GB-172458-A (GB)
Title: Improvements in or relating to dies or the like for screwing tapered plugs or for other forms of tapered screwing
IPC: B23G5/12
Filed: 1920-09-29
Abstract: 172,458. Vulcan Foundry, Ltd., and Richards, R. P. Sept. 29, 1920. Screwing-die heads.-The radial chasers C of a taper screwing-die for hand or machine use are mounted in a loose sleeve A and are pressed outwardly by springs D to engage cam-slots h in a tapered sleeve H. Engagement or disengagement of the chasers with the work is effected by the partial rotation of the sleeve A, which is under the torsional influence of a spring F. The chasers are adjusted to varying diameters, by axially adjusting the tapered sleeve H on the sleeve J by means of the graduated nut K, the sleeve J being secured by the nut Q to the locatjng-stop N, which engages the work-piece x, through the ball-thrust P. The sleeve B, on which the chaser-sleeve A is mounted, is provided with axial slots b and moves relatively to the stop N during screwing under the control of a spring R, a buffer spring S<1> being interposed between the sleeves J, E to absorb shock consequent on the recoil of the sleeve B after disengagement of the chasers. Modifications show dies in which the chasers are mounted directly in the sleeve B and in which the tapered sleeve H is partially rotated to effect the engagement or disengagement of the chasers. The spring R may be disposed externally and sleeves of different tapers and chaser-sets of different pitches may be used with the same apparatus.
Patent GB-745054-A (GB)
Title: Improvements in or connected with musical toys
Inventor: JACOBS JOHN DOUGLAS PERCY
IPC: A63H5/00
Filed: 1952-11-05
Abstract: 745,054. Musical toys. STONE & CO., Ltd., H. G. Feb. 4, 1954 [Nov. 5, 1952], No. 27820/52. Class 132(3) A musical toy comprises a cardboard tube 1 having one end closed by a disc 2 from which a plurality of different length wires 3 project into the tube. When the tube is shaken a weight 4 flexibly secured by a spring 7 and rubber plugs 9, 10 to a perforated cover 5 strikes the wires 3 and musical notes are produced. Alternatively, a length of rubber cord may be used to carry the weight 4.
Patent GB-226001-A (GB)
Title: Improvements in electric water heaters
IPC: F24H1/10
Filed: 1923-11-06
Abstract: 226,001. Macdonald, J. A. Nov. 6, 1923. Wire resistances, embedded; mounted on grooved surfaces.-A water heater 1 is provided with one or more heating elements comprising a refractory non-conducting core having a plurality of longitudinal peripheral slots 8 containing a resistance, the elements being disposed in housings 6 readily removable from the heater. The resistance is preferably in the form of a ribbon disposed with one of its edges projecting outwardly so as to form fins on the core, and is secured in the slots by cement the setting of which is completed by sending a current through the resistance. The ends of the resistance are fused to the supply leads 12 and are then embedded in cement pressed into the groove 13 in the core. A filling of asbestos fibre renders the housing moisturetight. The junction box at the bottom of the heater is in two parts 18, 19 and contains the inlet elbow 5. A switch may be fitted in place of the cover plate 21, if desired.
Patent GB-885627-A (GB)
Title: Improvements in fuel injection valves for internal combustion engines
IPC: F02M61/18
Filed: 1960-08-11
Abstract: 885,627. Fuel injectors. GOTAVERKEN A.B. Aug. 11, 1960 [Sept. 15, 1959], No. 27868/60. Class 7(3). A fuel injector nozzle comprises a part 2 forming a guide for the valve 3 and a part 6 containing the valve seat 10 and spray orifices 8, the two parts being secured to the housing 1 by a nut 13 -and correctly aligned by an annular member 12 engaging corresponding recesses in the parts 2, 6. An aligning pin 11 is also provided. The nozzle part 6 is of tungsten carbide.
Patent GB-956767-A (GB)
Title: Improvements in and relating to transfer systems
IPC: B41M5/10
Filed: 1959-08-17
Abstract: 956,767. Transfer systems. J. GROAK. Aug. 12,1960 [Aug.17, 1959],No. 28079/59. Heading D2B. A transfer system is prepared by applying to a base sheet B, e.g. paper, a dispersion of a hard brittle resinous material or a substantially unplasticized synthetic resin and drying it to form a frangible layer F of discrete fine particles of size preferably less than 1¢ microns and exhibiting negligible flow properties at normal temperatures, and applying thereover, or to a receiving surface R, e.g. a second paper sheet, an activating layer A composed of predominantly organic thermoplastic material and having an affinity for the resinous material of the frangible layer and for the surface R intended to receive material by transfer from the base sheet B. If desired one or more further layers I, I 1 , I 2 , of synthetic resin dispersion may be applied over the frangible layer and dried, these layers having affinities for layers A and F, and for each other, greater than the affinity of layer F for the base sheet B. More specifically layer F preferably comprises a hard non-ionic or anionic resin e.g. unplasticized polystyrene, polymethyl, methacrylate, which may be strengthened by blending it with a high m.p. acrylate resin, a polymerized terpene resin emulsion or abutadiene copolymer emulsion. The activating layer A may comprise a continuous layer of polyethylene, e.g. a low m.p. polymer emulsion containing 20% solids, plasticized polystyrene, acrylic resins, polymerised terpene resin, polyamides, or copolymers or mixtures of these resins. The intermediate layers I may be formed from an emulsion of polystyrene, ethyl acrylate or polymerised terpene resin, or admixtures thereof. The various layers may be colourless, translucent, white or coloured by added pigment and their application effected by printing, coating, dipping, rolling or spraying. Thus a relatively inner layer may incorporate a record pigment, e.g. carbon black paste, or the base sheet itself may be coloured, and a relatively outer layer a masking pigment, e.g. titanium dioxide. An inner layer may contain a finely divided material, e.g. magnetic Fe 3 O 4 , detectable by physical sensing methods. A reverse system can be prepared in which a coloured base or baselayer is covered by a frangible layer incorporating a masking colour or having a superimposed overlying layer incorporating such. Pressure on the upper sheet will cause the masking colour to be stripped from the base to reveal the colour beneath.
Patent GB-1169466-A (GB)
Title: An Improved Slider for Sliding Clasp Fasteners.
IPC: A44B19/26
Filed: 1967-06-19
Abstract: 1,169,466. Sliding-clamp fasteners. OPTIHOLDING A.G. 19 June, 1967 [8 July, 1966], No. 28108/67. Heading E2S. In order better to resist deformation,' e.g. during ironing, the top and bottom plates 1 and 2 of a slider of a sliding-clasp fastener have convex outer surfaces so that the overall thickness of the slider is greatest in the region of the wedge-shaped neck 3 extending between the plates, and the guide flanges 4 provided on either or both of the plates are thick so as to present broad surfaces to the stringers and thereby provide additional support for the plates. The latter are preferably circular to avoid any tendency of the slider to tilt during ironing, and they may be recessed to receive catches and pulling members.
Patent GB-651380-A (GB)
Title: Improvements in and relating to devices for cutting power transmission and conveyor belting or the like
IPC: C14B5/04
Filed: 1948-10-29
Abstract: 651,380. Cutting belting transversely. HAYDEN-NILOS, Ltd., POTTER, J. J., and WHEATLEY E. Oct. 29, 1948, No. 28166. [Class 31 (i)] A belt-cutting machine of the type comprising a belt-clamping device formed by a stationary lower jaw 13, an adjustable upper jaw 8 and a movable cutter 14 traversed by a screwthreaded spindle 16 provided with an actuating handle 18, the cutter projecting upwardly between the lower jaw and a side plate 20, is characterized by the provision of a belt-locating guide comprising calibrated arms 1, 2, pivotally connected at 3 to a carrier arm 5 which is in turn pivotally connected at 6 to the upper clamping jaw 8. The arms 1, 2, are collapsible on the carrier bar and movable therewith to an inoperative position close to the upper clamping jaw.
Patent GB-361486-A (GB)
Title: Improvements in and relating to vehicles
IPC: B62D33/00
Filed: 1930-09-20
Abstract: 361,486. Vehicle roofs. GARDINER, J. R., 9, Sylvan Close, Selsdon, Surrey, and BERGIN, T. J., Air Ministry, Adastral House, Kingsway, London. Sept. 20, 1930, No. 28191. [Classes 103 (ii), 103 (iv), and 108 (i).] A portion of the rear of roofs of motor and other vehicles of the wagon or lorry ,type is made removable and is lockable in position to cover the floor and brace the roof. In one form, the portions 4, 10, 11, 12 of the framework of the canvas hood is braced by a cross-bar 13 and ties 14, 15 and is removably connected by connections 16 .. 20 to the remainder of the framework. The connections 16, 17 include a hooked tongue-member 22, Fig. 3, carried by the frame member 4 and a stirrup 24 which is held in position by a pin 26. The connections 18, 20 are similar except that the members 22 are omitted. In the connection 19, Fig. 5, the frame member 11 is held in a U-shaped fitting 27 by a pin 28. The pins are preferably locked by hinged tongues or cotters and are provided with safety springs 30.
Patent GB-1439955-A (GB)
Title: Filtering
IPC: B01D46/30
Filed: 1973-06-13
Abstract: 1439955 Corrugating AMERICAN AIR FILTER CO Inc 13 June 1973 [3 Oct 1972] 28215/73 Heading B3E [Also in Division B1] Sheet steel to -be used as the permeable faces of a gas filter element is corrugated by passing it between a pair of intermeshing rollers or between a first pair of rollers and then a second pair of rollers rotating more slowly than the first pair and then perforated.
Patent GB-878273-A (GB)
Title: Improvements relating to friction engaging devices
Inventor: SCARROTT GORDON GEORGE
IPC: F16D63/00
Filed: 1957-09-07
Abstract: 878,273. Friction clutches; clutch-brake combinations. FERRANTI Ltd. Sept. 3, 1958 [Sept. 7, 1957], No. 28309/57. Class 80 (2). [Also in Group XXXIV] In an electromagnetic friction clutch or brake a driven or braked thin, flexible, steel disc 11 is normally held in light but ineffective contact with pole faces 18, 19 of a laminated driving or stationary magnet 16 by pressure of springs 29 on a co-operating laminated armature 23, whereby when, for engagement, the magnet 16 is energized by a winding 17, no initial air gap has to be overcome and full torque is developed very quickly. The armature laminations 23 are carried in a plate 24 which slides axially on studs 27 on one part 21 of a two-part driving or stationary shell 14, 21 bolted together at 20. The driven disc 11 may be splined on its shaft. In a combined clutch and brake on a common driven shaft of a computor tape reader capstan, the light opposing drag torques of the disengaged clutch and brake counterbalance.
Patent GB-1243860-A (GB)
Title: Brake antiskid device
IPC: B60T8/1761
Filed: 1969-06-04
Abstract: 1,243,860. Brakes. HAYAKAWA DENKI KOGYO K.K., and AISIN SEIKI K.K. 4 June, 1969 [5 June, 1968; 11 Sept., 1968], No. 28312/69. Heading F2F. Incipient skidding of vehicle wheels is reproduced as an electrical signal from generator G which is responsive to the deceleration of the wheels, and this causes release of the braking force for a predetermined time after which the brakes are reapplied, and then released cyclicly until the vehicle stops, and the threshold signal value at which release occurs is reduced for subsequent operations to the value existing in the initial deceleration of the wheels. By this means gentle braking will not normally initiate the braking-release cycle, but on fierce braking, the threshold is lowered sufficiently for the cycle to take place and maintain the wheel-speed at about 80% of the vehicle speed for the maximum braking effect. This is done by cutting out a resistance 11 at relay 20. The circuit for achieving this consists of five sections, Fig. 1(A). Section 1 to which the generator is connected consists of an amplifier employing transistor 7 and feeding section II through a condenser 8. Section II is a Schmidt circuit which serves to provide an output through condenser 19 to the next section when the voltage received is higher than that set by resistances 10, 11. Section III is a multivibrator delay circuit providing a pulse signal of specific time duration when energized from the preceding section, this pulse being sent into Section IV which is a releasing circuit comprising a transistor 33 and a magnetic coil 32 which releases the braking effort. Pedaloperated switch 37 is connected to relay 38 and emitter terminal 42 of transistor 33, and another relay 39 is connected to collector terminal 43 of this transistor. On heavy braking, the signal from Section I is above that set by resistances 10, 11 in parallel and the system operates to produce cyclic release and braking. When transistor 33 passes current to coil 32, it also, at the same time shorts out relay coil 39 across 42, 43. This opens switch 20 to cut out resistor 11 leaving only resistance 10, so that the threshold voltage is reduced, so that cycling occurs at a lower wheel deceleration. The additional resistor 11 may be transferred to Section I (Fig. 1(B), not shown). In a further modification, Fig. 4, transistor 124 becomes non- conducting after the first operation, thus eliminating a resistor 125 from a voltage divider. This reduces subsequent deceleration signals. The time constant of the cycle is set by the charging of condenser 119 through resistor 118.
Patent GB-1496628-A (GB)
Title: Process for producing alkyl adamantanes
IPC: C07B61/00
Filed: 1976-07-08
Abstract: Lower-alkyladamantanes are obtained by reacting tetracyclo[6.2.1.1<3,6>.O<2,7>]dodecane or a lower alkyl derivative thereof and hydrogen in the presence of an H-Y type zeolite or a zeolite which has been subjected to ion-exchange treatment with at least one type of metal ions from the group of the alkaline earth metals and rare earth metals, as catalyst. The resulting lower-alkyladamantanes can be used for the preparation of synthetic lubricants, additives for lubricants, starting materials for monomers, pharmaceuticals and for intermediates for organic syntheses.
Patent GB-1202618-A (GB)
Title: Magnetic transducer
IPC: G11B5/127
Filed: 1968-06-14
Abstract: 1,202,618. Magnetic heads. BURROUGHS CORP. 14 June, 1968 [21 June, 1967 (2)], No. 28398/68. Heading G5R. A magnetic head comprises at least one ferrite transducer element 17 projecting through, and secured by electrically insulating material 59 to, an apertured member 13 closing one end of a hollow shell 11 containing the unit 19. Manufacture.-Ferrite core parts 19, 21 and a copper shim 20 are joined by adhesive and bifilar-wound 23 to form a record/playback unit 17 which is located in grooves 35, 37 in a support member 27 subsequently inserted through the shell and retained by a snap ring 49. The winding leads pass along channels in the support 27 and are held by a ring 43, the cable shield 41 being clamped by part 39. A ferrite shield 47 is also provided. The protruding core parts and face of the cap member 13 are coated with epoxy resin 59 and partially cured then heated to 212‹ F. whereupon the support 27 expands, forcing the unit 17 further through the cap 13, so that on cooling the unit is firmly held by the resin only, being then spaced from the contracted support 27. The working face is then finishmachined. A multiple head is similarly manufactured (Figs. 3-7, not shown), the individual units 17 first being located in a corrugated spring support and shielding member (10<SP>1</SP>) in alternate fashion to reduce cross talk. The head casing is coated internally with insulation, and externally with wear-resistant chrome. The head is for use with magnetic disc or drum records.
Patent GB-533249-A (GB)
Title: Improvements in or relating to electric discharge devices particularly for use in the starting circuit of gaseous electric discharge lamps
IPC: H05B41/08
Filed: 1939-10-23
Abstract: 533,249. Discharge lamps; electric switches. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Oct. 23, 1939, No. 28464. Convention date, Nov. 29, 1938. [Class 39 (i)] [Also in Groups XXXV and XXXVII] The starting of an electric discharge lamp is effected by connecting the electrodes 6, 7 to the source by an auxiliary discharge device 13, which has contacts 20, 24 carried by bimetallic strips 19, 23 which act as electrodes for a discharge ; as shown the strips 19 is connected to a cylinder 22 coated with emissive material some of which is sputtered on the strip 23 but the cylinder 22 may be dispensed with. An inductance 9 is included in the main lamp circuit. On closure of the circuit switch 12 a discharge occurs between the strip 19 or cylinder 22 and strip 23 ; heating of the strips causes them to flex and close contacts 20, 24 ensuring heating of the electrodes 6, 7 in the lamp and ionization of the gases around them ; when the strips 19, 23 cool the contacts open and the inductance 9 ensures break down of the gap between the electrodes 6, 7. The discharge across the lamp short-circuits the auxiliary 13 during normal running. Only one of the strips 19, 23 need be bimetallic.