baber/WOPTO huggingface dataset:
Patent GB-1388735-A (GB)
Title: Hammer drilling machine
IPC: B23B45/16
Filed: 1972-06-23
Abstract: 1388735 Rotary, percussive drilling machine IMPEX ESSEN VERTRIEB VON WERKZEUGEN GmbH 23 June 1972 [4 Sept 1971] 29573/72 Heading B3C [Also in Division B4] A drilling machine comprising a tool mounting spindle 1 constantly rotated in use by a motor via gears 9, 10 includes a percussion mechanism rendered operative to apply impacts to a plate 5 secured to the spindle when the latter is displaced axially against bias of spring 6 to effect coupling of teeth 5<SP>1</SP> on the plate with teeth 11 of a sleeve 11 of the percussion mechanism. The percussion mechanism also includes a hammer piston 3 axially movable relative to sleeve 11 and rotatable therewith, and a spring assembly 4 which maintains cam teeth 3<SP>1</SP> on the piston in engagement with cam teeth 2. The machine is illustrated with a camming spindle 15 and ball 16 positioned to permit engagement of the teeth 5<SP>1</SP>, 11<SP>1</SP> to occur upon the inward axial movement of the spindle 1 so that the machine will apply rotation and percussion to a tool attached to and coaxial with the spindle 1. The spindle 15 can be rotated to a position in which inward axial movement of the spindle 1 is prevented, thus in this condition the tool will only be rotated. Inclined teeth 14 on gear 9 cause the latter to be constantly forced against bearing 8.
Patent GB-1340295-A (GB)
Title: Assembled column for chromatography
IPC: G01N30/60
Filed: 1972-06-26
Abstract: 1340295 Chromatography MERCK PATENT GmbH 26 June 1972 [1 July 1971] 29848/72 Heading B1X A column containing a sorption agent for chromatography comprises a main column containing a sorption agent both ends of which narrow conically into shorter columns of smaller diameter than said main column, each of said shorter columns containing close to the column filling a filter distributer and adjacent thereto a closure stopper provided with a capillary. The filter distributer may be sand, filterboard or porous ceramic material. There may be additional sealing such as rubber or resin outside the stoppers. The capillaries may project beyond the outside ends of the stoppers and any additional sealing but stop short of the inside ends of the stoppers.
Patent GB-281254-A (GB)
Title: Improved method of manufacturing porous refractory bricks and the like
IPC: C04B38/02
Filed: 1927-11-08
Abstract: 281,254. Setterberg, I. Nov. 26, 1926, [Convention date]. Porcus refractory compositions.-Porous refractory bricks and the like are made by adding to finely divided refractory material a substance capable of evolving gases by reacting with water, such as powdered aluminium, zinc, calcium, or calcium carbide, adding water to form a dough, allowing the mass to rise and then drying and burning. 'When metal powder is used, a suitable amount of alkali, lime or other basic material is added to facilitate the reaction. Suitable refractory materials are refractory clay, chamotte, kaolin, quartz, quartzite, flint, magnesite, dolomite, chromite and alundum.
Patent GB-942712-A (GB)
Title: A variable transmission line coupler
Inventor: AYER DONALD RODNER
IPC: H01P5/04
Filed: 1961-08-18
Abstract: 942,712. Directional couplers. SANDERS ASSOCIATES Inc. Aug. 18, 1961, No. 29860/61. Heading H1W. A variable directional coupler for twoconductor transmission lines comprises means for varying the spacing of the conductors of the respective lines within a coupling section. The invention may be applied to the type of strip line comprising a single inner strip conductor arranged between a pair of broad outer conductors forming a common " ground." As shown, the inner conductors 30, 36 (Figs. 2, 3), of the coupled lines share the same pair 22, 24 of ground conductors and variation in coupling (max. of 3 db.) is obtained by lateral movement of the conductor 36 between the positions shown in whole and broken lines (Fig. 2). As the conductor 36 approaches the conductor 30 the capacitance of both lines increases within the coupling section causing mismatch between this section and the output and input sections. In order to avoid this, conductor 36 is associated with a fixed compensatory conductor 27 and conductor 30 with a compensating conductor 26 which moves with the conductor 36. Thus, as the coupled conductors approach each other they withdraw from the region of their compensatory conductors and the capacitance within the coupled section remains constant. The fixed and movable conductors, respectively 27, 30 and 26, 36, may be mounted on dielectric blocks 18, 20 (Figs. 6, 7), arranged within relatively movable, recessed, conductive members 42, 44 which provide the common ground planes of the coupled lines. The member 42 forms the lid of a box 46 and the member 44 is arranged for lateral movement within the box. This is effected by means of a lead-screw and cam mechanism 82, 86. Terminals 56, 58 for the two lines are arranged on the lid 42, the terminals 58 associated with the movable line being connected to sliding contacts 60. Contact pressure between members 42 and 44 is provided by a pair of short resilient tubes (Fig. 5, not shown), mounted between member 44 and the base of the box. The tubes are arranged with their axes perpendicular to the direction of motion of the member 44 and have sufficient resilience to permit this motion.
Patent GB-1007750-A (GB)
Title: Improvements in or relating to protective covers for internal combustion engine exhaust pipes
Inventor: TOLBERT WILLIAM PAUL
IPC: F01N13/08
Filed: 1964-07-23
Abstract: 1,007,750. Exhaust pipes. GLEASON CORPORATION. July 23, 1964, No. 29862/64. Heading F1B. A self-closing protective cover for the end of an exhaust pipe comprises a plate 15 connected to a counter-balance arm 34 pivoted at 23 about a pivot 29 carried by a frame 13 formed by part of a one part metal band 10 having a portion 11 clamped around the exhaust pipe, the portion 14 connecting the frame 13 to the band 11 being formed by two parts of the metal band clamped together e.g. by a rivet 25 or welding. The plate 15 is forced open by the pressure of the exhaust gases and automatically closes when the engine is inoperative. The open ends 12 of the band 10 are clamped together by a bolt 18, the portion 14 of the band preventing distortion of the frame 13 when the bolt 18 is tightened. The maximum open position of the cover 15 is determined by contact of the lever 34 with part 36 of the frame 13. The lever 34 carries a self lubricating sleeve 29 fitting over the pivot 26 which comprises a split tube expanded into holes in the frame 13.
Patent GB-635966-A (GB)
Title: Improvements in or relating to a drink dispenser
IPC: B67D1/00
Filed: 1945-11-09
Abstract: 635,966. Dispensing mixed drinks; measured quantities by volume. DOLE VALVE CO. Nov. 9, 1945, No. 29913. Convention date, Jan. 1, [Classes 106(v) and 116] [Also in Groups II and XXIX] In a drink dispenser for mixing and discharging two liquids, the flow of a first liquid under pressure, e.g. carbonated water, effects the release of a predetermined volume of a second liquid, e.g. a flavouring syrup. A valve housing 24, secured in an aperture in the bottom of a double-walled heatinsulated cabinet 10, carries a syrup tank 22 and forms a cylinder in which slides a cup-shaped member 23 having a flanged top 31 and a discharge opening 33. The member 23 is urged into an in- .operative position, Fig. 1, by a relatively strong spring 34 retained by a collar 35 threaded into the housing 24. A measuring receptacle 38, the upper end of which is a sliding fit in the housing 24, has an exteriorly threaded lower end press-fitted into the member 23 and an outlet 40 normally closed by a valve 41 ball-jointed to the base of an inlet valve 53, the latter being normally open to allow syrup from the tank to fill the receptacle. When a manually or electro-magnetically actuated valve 20 is opened, carbonated water under pressure flows through the inlet pipe 19, 17 and the spiral passage formed between the member 23 and the threaded exterior of the receptacle 38 to the discharge opening 33, the force of the water on the flanged top 31 being sufficient to move the member 23 and the receptacle to the operated position, Fig. 2, in which the communication between the syrup tank and the receptacle is closed by the valve 53 under the action of a relatively weak spring 56 and the valve 41 is opened for the syrup in the receptacle to be discharged into a chamber 16 adjacent the discharge opening. A gauze 45 in the chamber 16 ensures adequate mix- .ing of the two liquids.
Patent GB-603327-A (GB)
Title: Improvements in or relating to automatic electric voltage regulation
IPC: H02P9/18
Filed: 1945-11-09
Abstract: 603,327. Automatic voltage control systems. COURSEY, P. R., STEATITE & PORCELAIN PRODUCTS, Ltd., and DUBILIER CONDENSER CO. (1925), Ltd. Nov. 9, 1945, No. 30002. [Class 38 (iv)] In an automatic voltage regulating system, changes in the capacity of a condenser, having a ceramic dielectric based upon titanium compounds, subject to the voltage to be controlled, actuates means correcting voltage deviation. In Fig. 4 a voltage-sensitive condenser 10 is connected to bus-bars 17, 18 of a D.C. generator 19, the voltage of which is to be controlled. This condenser also forms, with an inductance 11, a tuned circuit in the grid circuit of a triode valve oscillator 12. Deviation of generator voltage from a desired value alters the oscillator frequency and a contact-making frequency meter 21 energizes a relay 26 or 30 according to the sense of the deviation to operate a D.C. shunt motor 34 in the appropriate direction to correct the generator voltage by adjustment of a field rheostat 36. A variable condenser 25 serves for setting the desired generator voltage. The following modifications of this arrangement are referred to :- (a) motor 34 adjusting tap connections to the generator field ; (b) an auxiliary valve oscillator providing a reference frequency and the frequency meter responding to the beat frequency of the two oscillators to permit the use of higher oscillator frequency; (c) in the case of A.C. voltage control, connection of the voltage-sensitive condenser to the bus-bars through a transformer and rectifier, and adjustment of an induction regulator or transformer tap changer by motor 34. In Fig. 5, the D.C. voltage to be controlled 44 is applied to a voltage-sensitive condenser 40 in one arm of a normally balanced A.C. bridge supplied from a constant voltage auxiliary A.C. source 45 of any convenient frequency. Deviation of the controlled voltage from a desired value results in an output from the bridge which is rectified as shown and applied to a polarised two-way relay 51 controlling correcting means as in Fig. 4. Alternatively, a pair of directional relays may be energized from or form part of the bridge. The bridge may be normally unbalanced and its output amplified electronically. Source 45 may be an A.C. voltage to be controlled and the output of the bridge may control the grids of gas discharge-type valves directly connected in the A.C. circuit. Thermal insulation or thermostatic control to minimise the effect of temperature variations on the voltagesensitive condensers is referred to. In cases where A.C. is applied to the condensers the use of D.C. bias as a means for selecting a sensitive working point is referred to. Specifications 574,577 and 601,109, [both in Group XXXVI], are referred to.
Patent GB-865174-A (GB)
Title: Improvements in silencers for exhaust gases
IPC: F01N13/18
Filed: 1959-09-03
Abstract: 865,174. Silencing gaseous currents. BURTON, L. J. Sept. 3, 1959, No. 30027/59. Addition to 789,507. Class 7(2). The exhaust gas silencer of the parent Specification is modified in that the two complementary steel pressings A1, A2 are joined together by bending the flanges G of one part over the corresponding flanges of the other part to form a seal.
Patent GB-1009147-A (GB)
Title: Improvements in and relating to the production of multi-coloured or variegated patterned wire
Inventor: HOLLISTER RALPH GEORGE
IPC: B21C1/00
Filed: 1963-07-30
Abstract: 1,009,147. Making multi-coloured wire. JOHNSON, MATTHEY & CO. Ltd. Sept. 11, 1964 [July 30, 1963], No. 30131/63. Heading B3A. In a method of making a multi-coloured twisted wire, a composite metal strip composed of two or more differently coloured layers is formed, the strip is rolled to a dimension suitable for drawing, the rolled strip is drawn into wire form and finally twisted about its own axis. The wire may be formed from carat gold having a different composition in each layer or gold may be bonded to one or both sides of a base metal layer such as copper. To produce a plurality of similar wires, a composite blank may be cut into strips before drawing.
Patent GB-914922-A (GB)
Title: Improvements in or relating to nuclear reactor servicing machines
Inventor: WRIGHT ROBERT ANDREW
IPC: G21C19/06
Filed: 1960-09-01
Abstract: 914,922. Servicing reactors. GENERAL ELECTRIC CO. Ltd. Aug. 15, 1961 [Sept. 1, 1960], No. 30173/60. Class 39 (4). A reactor servicing machine operable whilst the reactor is on load comprises a cylindrical pressure vessel 1 having a rotatable turret 2 whereby a number of servicing means can be brought into an operating position. Of these servicing means only a fuel element storage magazine 5 is shown. The magazine has six compartments 5 and may be indexed in one direction or the other by operating an appropriate reciprocating assembly 6 or 7. Each assembly comprises a push rod 8 mounted in bearings 10, 11 on the magazine and carrying a pawl 14 pivoted on a pin 13, a block 21 secured to the rod being biased by a spring-loaded telescopic tube 22. On depression of a rod 8 against the bias of the tube 22 the pawl 14 engages a roller 16 on the magazine and the latter is indexed one step. The rods are operated by tappets 24, 25 extending through the wall of the vessel 1.
Patent GB-969108-A (GB)
Title: Stabilization of halohydrocarbons in a phosphatizing bath
IPC: C07C37/07
Filed: 1962-08-07
Abstract: Halohydrocarbon-containing phosphatizing baths for metals which include phosphoric acid and a phosphoric acid solubilizer such as an aliphatic alcohol having 3 to 8 carbon atoms and/or an alkyl acid phosphate thereof are stabilized by the inclusion of a quinone.  The bath which is substantially anhydrous contains 0.001-5% by weight of quinone based on the weight of the halohydrocarbon, 0.05-7.5% of orthophosphoric acid by weight and 1-10% by weight of the aliphatic alcohol.  The bath may also contain 0.01-5% by weight of a nitro aromatic, a nitroso aromatic or an azo aromatic compound.  The halohydrocarbon may be tri-chlorethylene, perchlorethylene, difluorotetrachloroethane, trifluorotrichloroethane, dichlorotetrafluoroethane, dibromotetrafluoroethane, or trichlorofluoromethane.  The quinone may be p-quinone, quinhydrone, 1,2-dihydroxyanthraquinone, 1,5-dihydroxyanthraquinone or the p-quinone-phosphoric acid addition obtained by reacting p-quinone with phosphoric acid. Specification 966,883 is referred to.ALSO:A phosphatizing bath for forming a phosphate coating on metal surfaces comprises a halohydrocarbon solvent, phosphoric acid, a phosphoric acid stabilizer such as an aliphatic alcohol having 3 to 8 carbon atoms and/or an alkyl acid phosphate thereof, and a quinone as a stabilizing agent.  The bath which is substantially anhydrous contains 0.001-5% by weight of quinone based on the weight of the halohydrocarbon, 0.05-7.5% of orthophosphoric acid by weight and 1-10% by weight of the aliphatic alcohol.  The bath may also contain 0.01-5% by weight of a nitro aromatic, a nitroso aromatic or an azo-aromatic compound.  The halohydrocarbon may be trichlorethylene, perchlorethylene, trifluorotrichloroethane, difluorotetrachloroethane, dibromotetrafluoroethane, dichlorotetrafluoroethane or trichlorofluoromethane.  The quinone may be p-quinone, quinhydrone, 1,2-dihydroxyanthraquinone, 1,5-dihydroxyanthraquinone or p-quinone-phosphoric acid addition product obtained by reacting p-quinone with phosphoric acid. Examples of treating ferrous material such as stainless steel are given. Specification 969,849 is referred to.
Patent GB-1219995-A (GB)
Title: Production of adiponitrile
IPC: B01J31/16
Filed: 1969-06-13
Abstract: 1,219,995. Adiponitrile. E. I. DU PONT DE NEMOURS & CO. 13 June, 1969 [14 June, 1968], No. 30229/69. Headings C2C. Adiponitrile is produced by (a) reacting HCN with a mixture of 3- and 4-pentenenitriles, in the presence of a catalyst and under conditions such that trans-2-pentenenitrile is isomerized to the cis form to produce a mixture containing adiponitrile and 2-, 3- and 4-pentenenitriles; (b) fractionally distilling this mixture to separate adiponitrile therefrom; (c) fractionally distilling the mixture of pentenenitriles so obtained to separate cis-2-pentenenitrile; and (d) recycling the remaining pentenenitriles to the hydrocyanation reactor. Specified catalysts are nickel, palladium or cobalt complexes, which may be preformed or prepared in situ and which may be used in conjunction with promotors. The pentenenitrile starting material may be obtained by the hydrocyanation of butadiene.
Patent GB-158759-A (GB)
Title: Improvements in oil-lubricated thrust bearings
IPC: F16C33/10
Filed: 1919-12-03
Abstract: 158,759. Spence, W. L. Dec. 3, 1919. Force - feed lubricating.-A thrust bearing of the unit type comprising a spherically - seated thrust washer on one or both sides of a collar on the shaft, is lubricated by oil which is delivered to a central space S from an adjacent journal bearing by a helical groove in the bush or journal or both. The oil is distributed by grooves D cut in the surface of the washer W. The grooves are tapered radially and also on one side, as shown in Fig. 4, and do not extend to the outer edge of the washer W; they are radial, spiral or tangential in direction. The space S is formed by rounding the inner edge of the washer so as to clear the curved fillet in the shaft. Oil may be supplied through a passage H or N through or at the back of the washer, or the whole bearing may be immersed in oil.
Patent GB-1376485-A (GB)
Title: Wood slicing machine
IPC: B27L5/06
Filed: 1972-06-29
Abstract: 1376485 Wood slicing machine MARUNAKA TEKKOSHO Inc 29 June 1972 30385/72 Heading B5L A machine for slicing wood 5, Fig. 1, longitudinally comprises a stationary table consisting of a plurality of rollers 4 which are freely rotatable about axes normal to the feed direction of the wood, a vertically adjustable stock feed unit 10 having a driven belt 17 for advancing the wood over the rollers 4, and a slicer knife unit 139, Fig. 6, mounted on the table and having a slicer knife 140 whose edge is located at an acute angle to the direction of feed of the wood. As described the unit 10, Fig. 1, is vertically adjustable along pillars 8, 9 by a handle 30 or motor 34 driving a shaft 29 which via bevel gears 31, 32 rotates a shaft 33 threaded into the housing 10a of the unit 10. A motor 12 on the housing 10a drives a pulley 15 for the belt 17. The lower run of the belt is urged downwardly by resiliently mounted rollers 19. Further rollers, e.g. 50, may be provided level with the rollers 4 to enable the wood 5 to be fed, after slicing, back along a rectangular path to its initial position ready for further slicing. The height H of the belt 17 above the rollers 4 is adjusted after each slicing so that the belt contacts the upper face of the wood to feed it. The angle between the blade edge and the direction of wood feed may be 15 to 30 degrees.
Patent GB-792405-A (GB)
Title: Improvements in electrical contactor and breaker cams
IPC: H01H19/62
Filed: 1956-10-05
Abstract: 792,405. Cams. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. Oct. 5, 1956 [Oct. 29, 1955], No. 30419/56. Class 80 (3). A cam for operating an electrical contactor or breaker comprises a crown 2 for engaging a follower of a moulded material having good mechanical properties, such as a phenolic resin containing fibres or fabric, around which is moulded a supporting body 1 of an insulating material of good dielectrical qualities such as a suitable plastic.
Patent GB-1189067-A (GB)
Title: Variable Resistance Device
IPC: H01C10/40
Filed: 1968-06-26
Abstract: 1,189,067. Variable resistors. BECKMAN INSTRUMENTS Inc. 26 June, 1968 [3 July, 1967], No. 30420/68. Heading H1S. A variable register (e.g. a trimming resistor) comprises a housing 6 having a threaded shaft 12 and a resistance element 31, a block 23 having spring contact 26 mounted thereon which presses on element 31 and urges the block 23 so that a threaded channel in its upper face engages the thread of the shaft 12 to enable rotation of the shaft to move the contact over the resistance element. The shaft is secured in the housing by spring clip 17 being inserted between the shoulder 18 formed by the annular recess 16 in the shaft 12 and two wedge-shaped projections 19 on the inner wall of the housing on either side of the opening 11 for receiving the shaft, the head 45 of the shaft being forced into firm engagement with the outer wall of the housing. 0-ring 22 maybe mounted in a second recess 22a in the shaft. The V-shaped spring contact 26 which may be coated with a palladium-silver-copper alloy is push-fitted into engagement with the boss 28 of the block 23, flanges 23a about the side walls of the housing to prevent rotation of the block 23. The resistor element may be in the form of a helically wound resistance wire or a resistive film (30, Fig. 2, not shown), e.g. of carbon or conductive plastics material, on an insulating substrate 31, e.g. of refractory, glass or plastics material. A conductive collector strip (29, Fig. 2) is also mounted on the substrate 31 parallel to but spaced from the resistive element to which contact is made via the spring contact 26 which is also the tapping contact. External electrical connections are made via tags 40 and terminals 33 and 35 to the resistive strip and 34 to the collector. The substrate 31 is held into place in the housing 12 by base member 10 which is bonded to the housing 12, e.g. by ultrasonic welding the members 10 and 12 and block 23 being of filled plastics material.
Patent GB-859884-A (GB)
Title: Improvements in or relating to electrolytic capacitors
Inventor: STIRLING ALAN WILLIAM
IPC: H01G9/02
Filed: 1958-09-23
Abstract: 859,884. Electrolytic capacitors. STANDARD TELEPHONES & CABLES Ltd. Sept. 23, 1958, No. 30429/58. Class 37 An electrolytic capacitor comprises anode and cathode metal foils 1, 2 separated by a separate, porous, non-fibrous film of an organic synthetic resin impregnated with an electrolyte. Tantalum foils are interleaved with films 3, 4 of polyethylene terephthalate, and rolled up, the anode foil bearing an oxide coating constituting the dielectric. Perforations are provided in the films 3, 4 by pricking to produce burrs, Fig. 2 (not shown), which space the electrode foils from the films. Alternatively the perforations may be produced without burrs, the films being crimped to space the electrodes therefrom, Fig. 3 (not shown). An ammonium tetraborate electrolyte is used; the electrodes may alternatively be of aluminium; and other suitable synthetic resins are disclosed. Two superposed separator films may be used, the respective perforations being arranged to partially overlap.