baber/WOPTO huggingface dataset:
Patent GB-877709-A (GB)
Title: Shoulder grinding mechanism for a grinding machine
IPC: B24B47/16
Filed: 1959-11-02
Abstract: 877,709. Grinding shouldered work. CINCINNATI MILLING MACHINE CO. Nov. 2, 1959 [March 23, 1959], No. 37089/59. Class 60. A grinding machine for grinding a shouldered cylindrical work-piece 16, Fig. 1, held between fixed centres 14, 15, comprises manuallycontrollable means for reciprocating the wheel 18 between predetermined limits when grinding the cylindrical portion, and without reciprocation beyond one of the limits for grinding the shouldered portion 17 by bringing a face 8b of the wheel into contact with the work, together with means for securing a -control member, 78, selectively in an intermediate position when either reciprocation or shoulder-feed are not required. The motor-driven grinding-wheel spindle 19 drives through a belt 70 and a worm-shaft 67, Fig. 2, a worm-wheel 65 and shaft 53 having its axis normal to that of the spindle 19 and having at its inner end a roller 52, Fig. 1, mounted eccentrically of the shaftaxis. The roller 52 engages a vertical wall 54 of a flat 51 on a follower 50 slidably mounted parallel to the spindle, the forward end of the follower bearing against a ball-end 38 carried by one arm 26 of a yoke which is pivoted at 27, Fig. 3, and is in engagement with a collar 28 on the wheel spindle 19 ; when the latter is driven by a motor 24 and belt 23, the yoke is oscillated by the eccentrically-mounted roller 52 to reciprocate the wheel periphery across the work, radial feed being effected by conventional means. A spring-biased plunger 47 maintaining the bolt-head 38 in contact with the follower 50 and the wall 54 in contact with the roller 52. The flat 51 is sufficiently wide to allow the follower to be moved to the left by a cam 76 to a point at which the roller ceases to make contact with the wall 54, thus stopping the oscillation motion of the yoke ; further rotation of the cam moves the ball-end 38 beyond its normal travel to bring the face 18b of the wheel into contact with the shoulder 17, against the further compression of the spring biasing the plunger 47. The cam 76, shaped as shown in Fig. 2, is manually operable by a lever 78 at the end of a shaft 75 and a gauge 87 indicates the travel of the spindle 19 during shoulder-grinding. For an operation involving no shoulder-grinding, the lever 78 may be prevented from movement to the over-riding position by a hinged stop, or if reciprocation is not required a second stop is available to permit movement of the lever only in the direction of shoulder grinding ; the stops may be used together to lock the lever intermediately when reciprocation and shoulder-feed are not required.
Patent GB-522918-A (GB)
Title: Improvements relating to the de-aeration of liquids
IPC: B01D19/00
Filed: 1938-12-21
Abstract: 522,918. Degasifying liquids. JOHSSON, J. A. Dec. 21, 1938, No. 37133. [Class 1 (i)] A device for degasifying liquids comprises an evacuated vessel a containing a frustroconical weir g having a well h in its upper end into which the inlet pipe c dips. Specification 504,846 is referred to.
Patent GB-1325714-A (GB)
Title: Liquil level sensing apparatus
IPC: A61M1/36
Filed: 1970-07-31
Abstract: 1325714 Liquid level sensing apparatus MEDICAL DEVELOPMENT CORP 31 July 1970 [24 Feb 1970] 37144/70 Heading G1H Surgical apparatus comprises a liquid receiving container 10 and a pair of spaced electrical terminals 18 which project into the container and are electrically connected to an indicator 29 such that when the level of the liquid reaches a position in which it contacts both terminals a circuit is completed and current flows through the liquid to actuate the indicator and give a warning that a predetermined level has been reached. The container has a lid 12 with inlet and outlet ports 13, 14 coupled by conduits to a patient suction device and a vacuum respectively. The vacuum conduit may include a valve which is closed simultaneously when the indicator is actuated. The indicator may emanate an audible or visual warning. The container is supported in arms 19 on a bracket 20. The terminals may be coupled to arms 25 connecting them to the indicator or arms 19 extending from the bracket may engage the terminals when the container is disposed and supported within the arms. In this case the indicator connected either to the outer ends of the arms or to the inner ends and supported by the bracket. Two containers may be supported on electrically conducting arms supported by a post carried by a base, the containers being interconnected such that when one is filled and actuates the indicator it is manually manipulated to break the terminal contacts with the arms and permit the fluid to be drawn into the second container.
Patent GB-872424-A (GB)
Title: Apparatus for recording sound on to a plurality of magnetic sound record sheets at the same time
IPC: G11B25/04
Filed: 1958-11-19
Abstract: 872,424. Magnetic sound-and-picture sheets; copying. TOKYO DENKI KAGAKU KOGYO KABUSHIKI KAISHA, and HOSHINO, J. Nov. 19, 1958 [Nov. 20, 1957 (2)], No. 37254/58. Class 40 (2). A multiple machine, of the type described in Specification 850,291 has common drive means for all the turntables T and two multiple pressure plates 22, one being available for reloading as the other is holding record sheets in transducing position. The apparatus shown may be used either to produce three simultaneous records from an external signal source, or by suitable switching may record two copies of a record simultaneously played back at a third turntable.
Patent GB-1499730-A (GB)
Title: Method of acidizing subterranean formations
IPC: E21B43/26
Filed: 1975-09-11
Abstract: 1499730 Acid fracturing of formations EXXON PRODUCTION RESEARCH CO 11 Sept 1975 [10 Oct 1974] 37407/75 Heading E1F A fluid loss composition for use with an acid emulsion during the acid fracturing of a calcareous subterranean formation comprises a polymer mixture including a vinyl polymer, which is polyvinyl alcohol, polyvinyl pyrrolidone or a copolymer of vinyl alcohol or of vinyl pyrrolidone, and a natural gum; and finely divided particulate' material. The acid emulsion has an internal hydrocarbon liquid phase constituting from 50- 80 volume per cent and an external aqueous acid phase constituting from 20-50 volume per cent. Preferably the aqueous acid is hydrochloric acid and the natural gum is guar or karaya. The total weight concentration of the polymers in the aqueous acid phase is from 1-5 per cent and the natural gum constituent constitutes at least 25 weight per cent of the polymer mixture. The concentrations of the vinyl polymer and the natural gum in the acid phase -may be from 1-3 weight per cent and from 0.25-1.25 weight per cent respectively. The particulate material is preferably silica sand having an average particle size of less than 74 microns and is present in the acid phase in a concentration of from 2-1016/barrel. A fracturing fluid may be injected into the formation ahead of the acid emulsion.
Patent GB-523121-A (GB)
Title: Improvements in or relating to means for making and breaking electric circuits at short intervals of time
IPC: H01H3/00
Filed: 1938-12-23
Abstract: 523,121. Interrupters. GRASEBY, R. C. Dec. 23, 1938, No. 37454. [Class 38 (v)] An oscillating part of an escapement mechanism is connected to one of a pair of contacts to cause intermittent opening and closing of the contacts. In the example, the contacts 14, 15 are on springs 12, 16, the spring 12 having a forked end 10, 11 embracing an ,insulated pin 6 mounted on the pallet lever 3, which in oscillating under the influence of a pin 19 on a balance wheel 4, alternately forces apart and forces into contact the contacts 14, 15, by bending the spring 12. A comparatively stiff arm 18 separates the springs and acts as a stop for the spring 16.
Patent GB-1291142-A (GB)
Title: Harvester for maize planted in rows
IPC: A01D45/02
Filed: 1970-08-04
Abstract: 1291142 Rotary cutters for maize &c. MASCHINENFABRIK FAHR A G 4 Aug 1970 [9 Aug 1969] 37495/70 Heading A4C [Also in Division A1] In a maize harvester (see Division A1) the maize cobs are separated from the stalks by rollers 2, while the stalks are cut from the ground by blades 7. The maize stalks pass into the path of chaff cutters 8, attached to two drums 6 mounted side-by-side, and are comminuted. The drums 6 rotate in opposite directions, and the cutters 8 may be rigidly attached, suspended freely in pendulum fashion, or pivotally controlled on the circumference of the drum. In another embodiment Fig. 4 (not shown) there is a single rotating drum whose cutters co-operate with the rigid cutters of a fixed plate.
Patent GB-1160124-A (GB)
Title: Apparatus and Method of Detecting Stress in Strip Material
Inventor: SYKE GEORGE
IPC: G01N27/82
Filed: 1966-08-24
Abstract: 1,160,124. Electro-physical measurement - stress. BRITISH IRON & STEEL RESEARCH ASSOCIATION. Aug.22, 1967 [Aug.24, 1966], No.37947/66. Heading G1N. [Also in Division G3] Stress in sheet steel is determined by magnetic or electromagnetic tests of the field in the longitudinal and transverse directions e.g. to control a rolling mill with the object of avoiding uneven stress or wavy edges. The measurement may be made by the self inductance of pairs of coils on cross-shaped cores Fig. 1 (not shown), or the coupling between pairs of coils above and below the sheet Fig.2 (not shown), or Hall-plate or fluxgate magnetometers detecting the fields induced by a permanent magnet. A plurality of detectors may be arranged across the strip, or a single detector scanned transversely to determine the transverse stress-differencedistribution to control e.g. the screw down of a rolling mill or the rejection of faulty strips Fig. 9 (not shown).
Patent GB-804699-A (GB)
Title: Corrosion-inhibition of iron and steel
IPC: C23F11/14
Filed: 1956-12-12
Abstract: The corrosion of iron and steel objects is inhibited by the action of a-nitronaphthalene which is preferably in admixture with ammonia, and may be used in the solid phase, in solution, e.g. aqueous hydrochloric or sulphuric acid, or absorbed in wrapping paper.  The examples compare its action with that of dicyclohexyl ammonium nitrite.
Patent GB-1513606-A (GB)
Title: Device for controlling fluid communication between two spaces
IPC: F16L17/10
Filed: 1976-09-14
Abstract: 1513606 Valves STAL REFRIGERATION AB 14 Sept 1976 [3 Oct 1975] 38044/76 Heading F2V A device for controlling communication between apertures 4, 15 of spaced members 1, 14, includes a ring 10 sealed to the end of a collar 6 and which normally engages a member 7 to close off the end of the collar but when inflated moves to engage the member 14 and allow flow between the apertures 4, 15. The tube may be formed by rings joined at their inner and outer peripheries.
Patent GB-1394650-A (GB)
Title: Navigation aid
IPC: G01S13/02
Filed: 1973-08-10
Abstract: 1394650 Cathode-ray tubes DEVELOPMENT ASSOCIATES 10 Aug 1973 [14 Aug 1972] 38073/73 Heading H1D [Also in Division H4] A television screen employed in a navigation aid (see Division H4) includes two superposed phosphor layers (82 and 84, Fig. 4, not shown), only the outer layer being responsive to electrons of low velocity, the inner layer being excited, when the incident electron energy is increased, both by electrons penetrating through the outer layer, and by ultra-violet radiation emitted by the outer layer, whereby to permit a substantial increase in display intensity. The two phosphor layers may emit light of different colour.
Patent GB-827430-A (GB)
Title: Chrome tanning mixtures and preparation of leather therewith
IPC: C14C3/02
Filed: 1957-12-09
Abstract: A product obtainable from methylol compounds of mono- or poly-valent phenols, polynuclear phenols or phenol resins by condensation with sulphites and/or bisulphites is ememployed as a tanning agent.  The syntan may be produced in the presence of an alcohol or an aldehyde and/or a ketone.  Example 1: a mixture of phenol and cresol is condensed in presence of sodium hydroxide with formaldehyde, sodium bisulphite and methanol added, the mixture heated, cooled and aftertreated with urea.  Example 3: dihydroxy-diphenyldimethylmethane is condensed with formaldehyde in the presence of sodium hydroxide and sodium metabisulphite. Example 4: phenol is condensed with formaldehyde in the presence of hydrochloric acid to form a low molecular weight resin which is reacted with sodium bisulphite and formaldehyde in the presence of sodium hydroxide.  Specifications 443,967, 478,280, 510,743, 595,337, 615,190, 683,084, 701,103 and 705,663 are referred to.
Patent GB-885129-A (GB)
Title: Conessine derivatives
IPC: C07J71/00
Filed: 1959-11-11
Abstract: The invention comprises 3-oxocona-1 : 4-dienine and salts thereof, and 2 : 4-dibromo-3-oxoconanine.  They are prepared by hydrogenating 3-hydroxy-5-conenine, typically in the presence of a noble metal catalyst, to yield 3b -hydroxy-conanine, oxidising this with chromic acid to 3-oxo-conanine, treating this with bromine and hydrogen bromide in a lower alkanoic acid to yield the 2 : 4-dibromo-compound and, when required, heating this with pyridine or an alkylated pyridine such as collidine to yield the 1 : 4-dienine.  Examples are given, and a list of salt forming organic and inorganic acids is also provided.  The preparation of the methiodide of 3-oxo-cona-1 : 4-dienine is also described and a list of further quaternating agents is provided.  Specification 884,176 is referred to.
Patent GB-1181369-A (GB)
Title: Method for Purifying Dimethyl Terephthalate
IPC: C07C69/82
Filed: 1967-08-21
Abstract: 1,181,369. Purifying dimethyl terephthalate. MITSUBISHI CHEMICAL INDUSTRIES Ltd. 21 Aug., 1967 [26 Aug., 1966], No. 38389/67. Heading C2C. A process for the purification of a crude dimethyl terephthalate, a product of the esterification with methanol of a crude terephthalic acid obtained by the partial oxidation of pxylene, comprises contacting the crude dimethyl terephthalate with molecular oxygen at a temperature in the range 140-280 C. and in the presence of a cobalt-comprising material and a bromine-comprising material both of which are soluble in the crude dimethyl terephthalate. The purified dimethyl terephthalate is recovered by distillation. The active life of the cobalt- and bromine-containing materials may be extended by including in the reaction mixture manganese or manganese compounds. Many cobalt, manganese and bromine comprising materials are listed. The examples describe the esterification of crude terephthalic acid with methanol and subsequent purification by oxidation.
Patent GB-1395002-A (GB)
Title: Camera
IPC: G03B27/62
Filed: 1971-02-10
Abstract: 1395002 Photographic apparatus J R DENNER 5 May 1972 [10 Feb 1971] 385/73 Divided out of 1395001 Heading G2A The disclosure is identical to that of the parent Specification 1395001, but the claims are directed to construction of copyholder and its attachment to the frame of the camera.
Patent GB-352892-A (GB)
Title: Improvements connected with trawling gear
IPC: A01K73/05
Filed: 1930-12-23
Abstract: 352,892. Trawling-gear. HUGHES, T. T., 9, Trafalgar Road, Milford Haven, Pembrokeshire. Dec. 23, 1930, No. 38690. Addition to 320,743, [Class 48, Fish &c.]. [Class 48.] A waterkite according to the parent Specification is formed with a plane or curved board B. One or more tapering tubes C may be provided.
Patent GB-1158128-A (GB)
Title: Improvements in or relating to Coffee Mills With Adjustment Of The Fineness Of Grinding
IPC: A47J42/18
Filed: 1966-09-01
Abstract: 1,158,128. Coffee mills. PHILIPS GLOEILAMPENFABRIEKEN N.V. 1 Sept., 1966 [4 Sept., 1965], No. 39004/66. Heading B2A. In a coffee mill comprising a grinding element 5 mounted on the shaft 3 of a motor arranged in a housing 2 and a grinding element 7 forming part of a funnel piece S which constitutes a channel for the supply of coffee .beans to the elements 5, 7 and which has a rim 16 rotation of which permits the funnel piece to be adjusted axially relative to the shaft 3 to control the fineness of grinding, the funnel piece is supported from the end plate 17 of the housing 2 which plate is axially adjustable relative to the shaft 3. The plate 17 is supported by a spring 18 and guided by a cylindrical bearing boss 19 of the housing 2. The plate 17 is provided with cams 25 coacting with spokes 26, which connect the boss 19 to an annular wall part 28 of the housing 2, to determine the different axial positions of the plate relative to the shaft 3 as indicated by an index sign 43, on the rim 16, which is movable along an index 44 provided on an annular part 40. The part 40 has an internal milled edge 41 having vertical teeth engageable by a resilient pawl 42 connected to the rim 16. The funnel piece 8 is fixed on supporting pins 23 which project from the plate 17. The housing 2 is supported by tongues 12, through flexible rings 13, by supports 14 projecting from the base 15 of the central part 1 of the mill. The ground coffee is received in a removable cup 33. In a modification, the cup (33, Fig. 2) has outwardly-bent peripheral parts (45) which hook on to an annular spring (48) housed in the rim (16). The peripheral parts (45) are provided with downwardly and outwardly projecting fingers (47) which can be resiliently pushed inwards together with the peripheral parts (45). The cup, peripheral parts and fingers may be made in one piece from synthetic material. The rim (16) has screwed thereon an outer ring (49) which is locked by one end (50) of the spring (48) passing through a bore of the rim (16), the outer ring (49) surrounding the downwardly-projecting part (40) of the coffee-bean container and having an aperture (52) through which the adjusted position can be read on the index provided on the annular part (40).
Patent GB-1244950-A (GB)
Title: Earth scraper vehicles
Inventor: COPELAND CHARLES RICHARD
IPC: E02F3/64
Filed: 1970-08-13
Abstract: 1,244,950. Scraping-apparatus. GENERAL MOTORS CORP. 13 Aug., 1970 [15 Aug., 1969], No. 39060/70. Heading E1F. An earth scraper vehicle comprises a scraper bowl 14, an elevator 52 having transverse blades 60 adapted to load cut earth into the bowl 14, an ejector 66 mounted adjacent the elevator and having a front wall 68 which cooperates with the elevator blades 60 to form earth raising compartments of the elevator, and jacks 72 for moving the ejector rearwardly from a front bowl-closing position to discharge earth out of the rear end of the bowl. Jacks 28 are provided for moving the bowl to and from engagement with the earth, and the bowl has a jack-operated rear door 48 which also acts as a striker blade for levelling the earth. The ejector is supported on the bowl by rollers. The rear door 48 may be replaced by a movable portion of the floor of the bowl. The front wall 68 of the ejector may be of arcuate convex form.
Patent GB-833370-A (GB)
Title: Improvements in or relating to sheet material bending apparatus
Inventor: NEER KENNETH RALPH
IPC: B21D5/14
Filed: 1956-12-21
Abstract: 833,370. Curving. SOLAR AIRCRAFT CO. Dec. 21, 1956, No. 39089/56. Class 83 (4). Apparatus for bending sheet material to arcuate form comprises a movable element having a deformable portion, a stationary member having a rigid forming edge exerting deforming pressure on said deformable portion, and means for feeding a work blank between said movable element and the forming edge of said stationary member. A rubbercovered roller 18 is supported and driven at one end by the spindle of a lathe head 12 and is supported at its other end by an upright 30 on a stand 16 adjustably fixed on guideways 14, 15 of the bed 13 of the lathe. A cross-slide 40 on the stand 16 supports, on vertical members 56, 58, a guide-block 66 to one side of which the members 56, 58 are secured. The block 66 is formed as a wedge 72 with an edge 74 parallel to the roller 18. An endless belt 86 runs over the wedge 72, being driven by contact with the roller 18 to feed a metal blank to the bight between the roller 18 and the edge 74, passage therethrough causing the blank to curve under the edge 74. Pressure between the edge 74 and roller 18 is adjusted by a screw 98 moving the cross-slide 40. To form an elliptical or other non-circular section the roller 18 may be mounted with a slight eccentricity. By angling the edge 74 with respect to the roller 18 a conical shape may be formed.
Patent GB-1483530-A (GB)
Title: Catalyst and process for production of 2,6-dimethyl-1,3,6-octatriene
IPC: C07C67/00
Filed: 1974-09-09
Abstract: 1483530 Dimerisation catalyst MITSUBISHI PETROCHEMICAL CO Ltd 9 Sept 1974 [8 Sept 1973] 39261/74 Heading B1E [Also in Division C5] A catalyst composition for dimerising isoprene comprises (a) a zirconium component consisting of one or more compounds of formula Zr (OR) n  Cl 4-n  wherein R is C 2-20  chlorinated alkyl or C 3-20  chlorinated cycloalkyl and n is 1 to 4, (b) an aluminium compound consisting of one or more compounds of formula Al R' m  Cl 3-m  wherein R' is C 1-10  alkyl, C 3-10  cycloalkyl or aryl and m is 1.5 or 2, and (c) a coordinating component having one or more covalent electron pairs. The coordinating component may be an ether, e.g. tetrahydrofuran; alcohol, e.g. benzyl alcohol; ketone or aldehyde, e.g. furfural; silane or siloxane, e.g. cyclohexamethyl trisiloxane; amine, e.g. mono ethanolamine; amide or nitrile; mercaptan or sulphoxide, e.g. dimethylsulphoxide or sulpholane; phosphine, e.g. tricresylphosphine; phosphate; phosphite, e.g. triphenyl phosphite or phosphine oxide, e.g. tricresyl phosphine oxide. Suitably, the molar ratio of coordinating component to zirconium component is 0.01 to 10:1 and of aluminium component to zirconium component is 1:1 to 100:1.