baber/WOPTO huggingface dataset:
Patent GB-932819-A (GB)
Title: Device for automatically taking up play in brake shoes on motor vehicle brakes
IPC: F16D65/54
Filed: 1961-10-18
Abstract: 932,819. Internal shoe drum brakes. FIAT S.p.A. Oct. 18, 1961 [Oct. 22, 1960], No. 37321/61. Class 103 (1). An automatic adjuster for the shoes 1, 2 of an internal shoe drum brake comprises rods 7, 8 pivotally mounted on a back plate 3 by means of slotted holes 7a, 8a engaging pins 9, 10 secured to the back plate, levers 13, 14 pivoted at 15, 16 to the respective shoes and provided with holes 11, 12 of larger diameter than the rods through which the rods pass, and springs 17, 18 which urge the levers to grip the rods, the levers being capable of sliding along the rods during application of the brake but gripping the rods tightly when the brake is released, so that a constant clearance of the brake linings with respect to the drum determined by the play provided by the slotted holes 7a, 8a is maintained.
Patent GB-1002334-A (GB)
Title: Process for the preparation of magnesium by electro-thermal reduction of calcined dolomite
IPC: C22B26/22
Filed: 1961-10-18
Abstract: <PICT:1002334/C6-C7/1> In the production of magnesium by the electrothermal reduction of dolomite with ferro-silicon or other metallic reducing agent, the reaction mixture contains dolomite in 50-200% excess over that theoretically required. Reduction is carried out under reduced pressure at a temperature above the solidus of the reducing agent, and the mixture is heated by radiation on to its surface.  Excess dolomite is recovered from the residue by sieving preferably at a temperature below 675  DEG C. and is recycled.  A suitable apparatus illustrated consists of a furnace 1 having a grating 2 to support the reaction mixture which is introduced through feeder 6, the residue being discharged at 4.  Heat is supplied by means 8 and the magnesium vapour is transported by a stream of inert gas from pipe 20 through purification chamber 12 to the condenser where the major part is condensed to liquid which forms barometric column 15, the remainder solidifying in condenser 17 from which it is subsequently removed by heating coil 18.
Patent GB-619710-A (GB)
Title: Improvements in and relating to electric ballasts
IPC: F21V23/02
Filed: 1946-12-19
Abstract: 619,710. Lamp supports. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 19, 1946, No. 37440. Convention date, Dec. 22, 1945. [Class 75 (iii)] [Also in Group XXXV] In a lighting fitting particularly for a circular fluorescent discharge lamp, the ballast is constructed so that it may be housed in a wall or ceiling fitting or in the base of a floor or table lamp. The ballast casing 1 is constructed with an axial aperture so that it may be fitted over a threaded pipe 23 or 30, Fig. 5 or 7, and attached thereto by means of locking nuts 27 or 34 respectively. As shown in Fig. 7, a plate 33 may be fitted over the pipe 30 before the ballast casing is fitted to which plate can then be attached the remainder of the wall or ceiling fitting.
Patent GB-1512098-A (GB)
Title: Substantially non-inflammable copolymers containing antimony
IPC: C08K5/59
Filed: 1975-09-12
Abstract: 1512098 Complex antimony compound BAYER AG 12 Sept 1975 [12 Sept 1974] 37573/75 Heading C2C [Also in Division C3] A complex antimony compound containing amide groups is obtained by esterifying an α-hydroxy polycarboxylic acid with a polyol in a molar ratio of the carboxyl groups to the hydroxyl groups in the polyol of at least 2 : 1 and in the presence of an acid transesterification catalyst, reacting the resulting esterification product with an antimony oxide in a polar organic solvent at 100-200C. to form a clear solution of a product still containing free carboxyl groups, adding a monoisocyanate to the resulting solution at a temperature below 100 C. in such a quantity that the free carboxyl groups are converted into the corresponding amide groups, and optionally removing the solvent. In Example 1 tartaric acid is reacted with ethylene glycol and the product therefrom reacted with antimony trioxide and phenylisocyanate added to the solution. In further Examples the following reactants are employed in tartaric acid, 1,6-hexane diol, antimony trioxide and methyl isocyanate (2); citric acid, ethylene glycol, antimony trioxide and 3,4 dichlorophenyl isocyanate (3); and tartaricacid, glycerol, antimony trioxide and 3,4 dichlorophenyl isocyanate (4).
Patent GB-1383844-A (GB)
Title: Screw-threaded nut
IPC: F16B37/02
Filed: 1972-03-08
Abstract: 1383844 Locking nuts TRW Inc 8 March 1972 [8 March 1971] 37590/74 Divided out of 1383843 Heading F2H  A sheet metal nut 2b comprises concentric inner and outer tubular parts 4b, 8b joined together at one end 6b, the inner part 4b being internally threaded and the outer part 8b having at least adjacent said one end 6b a polygonal external configuration of wrenching faces for engagement by a spanner, an end portion 56 of the inner part 4b adajcent said one end 6b having a generally similar configuration to the external polygonal configuration, with internal faces opposite to and matching the wrenching faces. As shown, the configurations are hexagonal, and the portion 56 tapers axially. The nut has a captive locking washer as described in Specification 1,383,843.
Patent GB-327136-A (GB)
Title: Improvements in rotary pumps
IPC: F04B1/04
Filed: 1928-12-20
Abstract: 327,136. Shell-Mex, Ltd., Lubbock, I., and Joyce, J. R. Dec. 20, 1928. Revolving-cylinder pumps.-In a rotary pump of the kind comprising a fixed crank 28 and a rotary cylinder block 1, the inlet and delivery are controlled by a removable bush 15 provided with ports 16, 17, adapted to register with ports of passages 13, 11 formed in the shaft 2 or in the block. A relief valve 34 allows accumulated leakage in the casing 14 to return to the inlet passage 22. Springs may be interposed between the pistons 25 and the ends of the cylinders 3. Specification 312,408 is refererd to.
Patent GB-1028501-A (GB)
Title: Improvements in or relating to electrically operated gaseous discharge glow lamps
IPC: H01J17/00
Filed: 1963-09-25
Abstract: 1,028,501. Glow discharge lamps. P. J. KAYATT. Sept. 25, 1963, No. 37726/63. Heading H1D. A modified method of producing the flickering glow discharge lamp of Specification 997,961 is described, in which an assembly of electrodes mounted within an envelope, and at least one of which is coated with barium azide, is heated while exhausting the envelope until no more nitrogen is evolved, and then introducing into the envelope a small predetermined amount of nitrogen. The nitrogen may be introduced either separately, in a metering operation, or already mixed, in the correct proportion; with the other filling constituents.
Patent GB-1116350-A (GB)
Title: Improvements in or relating to radio and television receivers
Inventor: LANDMAN ALEXANDER
IPC: H03D7/18
Filed: 1964-09-16
Abstract: 1,116,350. Image frequency rejection. PLESSEY-UK Ltd. 15 Sept., 1965 [16 Sept., 1964], No. 37822/64. Heading H3Q. In a U.H.F. tuner (Fig. 3) employing quarterwave or half-wave transmission lines as tuning elements, the input to the first R.F. stage 2 (which may be a transistor or a valve) is aperiodic but is shunted to earth by a transmission line 14 which is tuned by a capacitor 15 ganged to the R.F. tuning capacitors 5, 6 and the oscillator tuning capacitor 10; the resonant frequency of the line 14 is thereby always different from the received frequency by twice the I.F. and second-channel interference is thus rejected. The trimmer capacitors shown associated with the line 14 can be adjusted to reject other interfering carriers that are near the image frequency.
Patent GB-1102660-A (GB)
Title: Bottom dump hopper barge
IPC: B63B35/30
Filed: 1966-08-24
Abstract: 1,102,660. Hopper barges. DREDGING INDUSTRIES (AUST.) PTY Ltd. 24 Aug., 1966 [25 Aug., 1965], No. 38020/66. Heading B7A. A hopper barge comprises at least two tubular pontoons 1 supported in spaced relationship-to constitute the sides of the barge-by bow and stern structures 3 and at least two hollow bulkheads 9; the bottom of the barge being formed of bottom wall plates 17 fixed longitudinally to the pontoons and to the bow and stern structures and at least two tubular door members 21 hinged (at 23) to structural members in juxtaposition to the bottom wall plates; at least two hydraulic units 28-29 mounted in the hollow bulkheads and operatively connected (via links 26) to the door members; and a coaming structure 6 fixed to the pontoons and to the bow and stern structures.
Patent GB-1045290-A (GB)
Title: Improvements in or relating to digging equipment
Inventor: OSBORNE KENNETH HEATHCOTE
IPC: E02F3/40
Filed: 1963-09-26
Abstract: 1,045,290. Excavator shovels. SCOTTISH LAND DEVELOPMENT Ltd. Sept. 16, 1964 [Sept. 26, 1963], No. 38057/63. Heading E1F. [Also in Division A1] The shovel of a machine for the digging up and transplanting of trees is of such a shape as to have in a direction from the front to the back of the shovel an arcuate section transverse of said direction and a forwardly and inwardly tapering digging edge.
Patent GB-1183416-A (GB)
Title: Conveyor Insert for Developing Apparatus for Photographic Film Base
Inventor: KLEIN ULRICH
IPC: G03D3/13
Filed: 1967-08-18
Abstract: 1,183,416. Photographic developing apparatus. PENTACON DRESDEN KAMERA - UND KINOWERKE VEB. Aug. 18, 1967, No. 38099/67. Heading G2A. A conveyer insert 2 for a photographic processing tank 1 for photographic film contains transport rollers 3 to 9 to transport the film through the tank and guide elements 10 arranged between the rollers, which elements are made in roof form having a slot 11 for the passage of the film in the roof edges pointing in the direction of passage of the film and are mounted on the plates 2, 2<SP>1</SP> of the conveyer insert so that the circulating processing liquid can enter and issue at their open ends. The guide elements may be of PVC foil and have impressed ribs 12 perpendicular to the direction of passage of the film. The elements may be mounted in roof-shaped recesses of the plates 2, 2<SP>1</SP> of the conveyer insert being fixed in position by two knobs 14 formed on the elements and gripping round the plates.
Patent GB-1355526-A (GB)
Title: Image recording on insulator surfaces
IPC: G03G9/135
Filed: 1971-08-16
Abstract: 1355526 Electro-photography AUSTRALIA COMMONWEALTH OF 16 Aug 1971 [17 Aug 1970] 38406/71 Heading G2H A photo-conductive member comprising a photo-conductor embedded in an insulative sheet is exposed on one side and the resulting conductivity image is developed with liquid developer while a member bearing a charge contacts the other side. As shown in Fig.1, a conductivity image on a member 2 is developed by means of a porous roll 7 while member 2 is in contact with a member 4 charged by means of a brush (6), Fig.1(B), (not shown). As shown in Fig. 2, a paper support 11 carrying member 10 is in contact with a charged endless belt 12. As shown in Fig.3, a member 18 bearing a conductivity image passes through the nip between a development roll 20 and a charging roll 19. Liquid developers and materials of photo-conductive members are specified. It is also stated that a dielectric image produced on an insulative member by stylus charging may be similarly developed.
Patent GB-365280-A (GB)
Title: Improvements in or connected with sheet metal spars particularly adapted for use in aircraft structures
IPC: B64C1/06
Filed: 1930-12-20
Abstract: 365,280. Metal spars for aircraft. STEEL WING CO., Ltd., Gloster Works & Aerodrome, Hucclecote, and EMBY, D. H., Old Vicarage, Ampney Crucis, near Cirencester, both in Gloucestershire. Dec. 20, 1930, Nos. 38440/30 and 25833/31. [Class 4.] Metal spars for aircraft have booms formed from two or more metal strips so corrugated and bent that the borders of the strips coincide and are fixed together while other parts of the strips are spaced apart, two such looms being connected together by distancing struts and diagonal bracing embraced by the outer borders of the booms. Fig. 1 shows a spar having booms each formed from two strips a, b having coterminal edges a3, a4 and central portions a<5> with intermediate portions spaced as shown. The edges a<3>, a<4> and central portions a<5> are secured together by hollow rivets those securing the former passing through spacing tubes. Vertical struts c bent as shown and provided with liners c<6> at their ends are secured to the edges a<3>, a<4> by bolts d passing through distance tubes d<1> or by separate rivets. Diagonal bracing e of channel section expanded at the ends and fitted with strengthening pieces e<2> are secured to the booms also by the bolts d or rivets which secure the struts. Lightening holes c<5> are formed in the struts c. Various modified booms are described. The strip a may be in two parts with flat overlapping central portions, upturned at the edges to interengage, or the strip b may be of channel section with rounded corners, or strips with polygonal instead of curved corrugations may be used. Fig. 8 shows a boom made from four pieces overlapping at the centre and Fig. 9 a boom made with three strips two of which fit closely together. A boom formed from two strips so bent as to form rectangular hollow spaces at the corners also is described with an additional strip secured over the central flat portion. Figs. 10 and 12 show other modifications. The spacing of the rivets bracing the edges a<3>, a<4> together is varied to suit the load on the spar and the thickness or number of the strips forming a boom may be varied for the same purpose.
Patent GB-1454959-A (GB)
Title: Continuous rotary damper
IPC: F16F9/12
Filed: 1974-09-04
Abstract: 1454959 Continuous rotary dampers EFDYN CORP 4 Sept 1974 [3 Oct 1973] 38578/74 Heading F2S A continuous rotary hydraulic damper comprises an annular housing unit 12, an annular stator unit 14 and a rotor unit 16, the housing unit 12 having a pair of opposed axially inwardly facing annular cavities 26, 36 and a radially inwardly facing annular recess 42, the stator unit 14 being seated in the recess 42 and having axial ports 52, 58 communicating with the annular cavities 26, 36, and the rotor unit having a radial vane portion 62 which projects into the stator unit 14 and which is provided with radial slots 66, 68 on both sides. The set of slots 66 is displaced circumferentially with respect to the slots 68. The stator unit 14 is formed in two parts 46, 48. The housing unit 12 is also formed in two parts 18, 20 which between them define an annular channel 44 which contains cellular material 74 and acts as a liquid reservoir. The hub portion 60 of the rotor unit bears on axial 22, 32 and radial 24, 34 bearing surfaces on the housing unit 12.
Patent GB-943307-A (GB)
Title: Grilling and toasting apparatus
Inventor: FORTEY JOHN CECIL EASTLAND
IPC: A47J37/06
Filed: 1961-10-30
Abstract: 943,307. Grilling stoves. RADIATION Ltd. Aug. 27, 1962 [Oct. 30, 1961], No. 38698/61. Heading F4W. [Also in Division A4] A platform 1 is movable vertically between a lowered position, in which a griller and toaster carried beneath it is stowed below the level of a hot plate of a domestic cooker, and two elevated positions, in which it can be used, respectively, for toast making and spit grilling. The platform is raised by turning handle 5 to wind wire 28 on pulley 6. A counterweight 10 simultaneously falls. The gas connection to the grill includes a flexible tube and is arranged so that a cam on shaft 4 extinguishes the flame when the platform is lowered. A spring-urged locking device (Fig. 3, not shown) maintains the platform in each of its three positions. The use of springs or a motor instead of counterweights, and a telescopic tubular guiding arrangement instead of ball-mounted guide 2 are referred to. The grill may be heated electrically.
Patent GB-1274926-A (GB)
Title: Method of and apparatus for detecting the ends down condition of textile yarn forming machines
Inventor: BLACK ROBERT L JR
IPC: D01H13/14
Filed: 1969-08-01
Abstract: 1,274,926. Spinning yarns. PARKS-CRAMER CO. 1 Aug., 1969 [2 Aug., 1968], No. 38764/69. Heading D1F. [Also in Division Gl] The presence or absence of a running yarn at each spindle station of one or more spinning and/or twisting machines is detected and measured according to temperature of, or temperature differential between, machine elements whereat in normal operation heat is generated by frictional engagement by, or is caused by movement of, the yarn. Signals derived from such detection may register, record and display the "ends-down" condition of the machines and also provide warning if this is excessive. Heat sensitive detector apparatus may be carried by patrolling machinetending equipment e.g. an overhead, pneumatic cleaner, so as continuously to scan the machines. In the machine 10 shown, wherein heat is generated by movement of a traveller 12 about a ring 11 at each spindle, the fall in temperature due to cessation of the traveller movement resulting from interruption of spinning yarn S is detected by an infrared radiation sensing device 30 comprising a housing 31 defining a parabolic reflector surface therewithin, an infrared filter 32 and a sensor 34 at a focal point of the reflector and electrically connected to electronic circuits (not shown) for recording &c fluctuations in radiation. The device 30 has a zone of sensitivity confined to the ring 12 or a part thereof. The electronic circuits may be responsive to either an amplitude or a frequency modulated signal and the signal transmission may be effected by radio frequency techniques.
Patent GB-369947-A (GB)
Title: Preparation of cyanines comprising a single ring nucleus
IPC: C09B23/04
Filed: 1930-12-24
Abstract: g -Cyanines useful as photographic sensitizers are obtained by condensing a pyridinium quaternary salt containing a halogen in the 2-position with an alkyl halide of a polynuclear nitrogenous heterocyclic compound having a reactive methyl group in the a -position.  In examples, 2-iodopyridine ethiodide and methiodide are condensed by boiling in alcoholic potash with quinaldine ethiodide and methiodide.  After washing with ether, the residue is fractionated by means of methyl alcohol in order to separate some iso-cyanine which is usually present.  2-Chlorpyridine.--1-Methyl (or ethyl) pyridone is heated with a mixture of phosphorus oxychloride and pentachloride.  The product is converted into the methiodide or ethiodide by heating with methyl or ethyl iodide in a sealed tube or under a reflux. Specification 369,946 is referred to.
Patent GB-1437440-A (GB)
Title: Method and apparatus for combined injection moulding and blow forming of containers or objects from plastics material
IPC: B29C49/06
Filed: 1973-08-17
Abstract: 1437440 Injection moulding; blow-moulding VAN LEER VERPACKUNGEN GmbH 17 Aug 1973 [17 Aug 1972] 39015/73 Heading B5A In a combined method of injection moulding and blow moulding, preforms 5 are injection moulded in and removed from a mould 4 at a higher rate than they are blow moulded in the blow moulds 6, and two or more preforms are simultaneously blow moulded in two or more blow moulds 6. As shown the preforms 5 are moulded on mandrels 3 which are carried by C-shaped members 1 independently movable on a rail 2. Alternatively roller bearings may be used. The mandrels 3 may be heated by induction heaters 9 and the preforms by induction heaters 8.
Patent GB-995023-A (GB)
Title: Apparatus for testing dynamic balancing machines
IPC: G01M1/22
Filed: 1962-10-16
Abstract: 995,023. Dynamic balancing machines. D. HOFMANN, [trading as G. HOFMANN KOM.- GES]. Oct. 16, 1962 [Nov. 28, 1961], No. 39138/62. Headings G1N and G1X. A dynamic balancing machine has a built in testing means operative during running of the machine to impart to the machine shaft or article receiving means an artificial imbalance of known amplitude and phase the effect of which is measured by the balancing machine and compared with the known value as a means of testing the accuracy of the balancing machine. The artificial imbalance may be permanently applied such as element 6 (Fig. 1) on the article receiving means 4, compensating means 12 being provided in the indicating apparatus to cancel out the artificial unbalance when an article is being tested. As shown Fig. 1 a receiver 7 picks up imbalance oscillations from a bearing 1 and a phase transmitter 8 determines the phase position of the imbalance . The signals from 7 and 8 are passed on in suitable form to an indicator 10 differentially connected to the compensating means 12 to climinate the artificial imbalance. If the compensator reads other than zero a signal is produced which may actuate an alarm or stop the machine. Alternatively the artificial imbalance may be temporarily applied at will. In the embodiment Fig. 2 a known imbalance formed by a ball 26 is applied when the machine is running. The ball is normally held close to the axis of the machine shaft 23 by a rod 27 and is released by movement of the rod, whereupon centrifugal force moves it to a position 26<SP>11</SP> to form an imbalance of predetermined size and angular position. The slight imbalance arising in the innermost position of the ball is compensated for by arrangement of compensating materials (not shown) on the shaft 23. Alternatively the ball may be held and released pneumatically (Fig. 4 not shown). In a further embodiment Fig. 6 (not shown) there are two imbalance elements of equal mass, one fixed to the machine shaft and the other moveable in an axial direction relative to the one from a diametrically opposite balanced position to a position in which it creates unbalance.
Patent GB-1472172-A (GB)
IPC: F21V8/00
Filed: 1973-08-18
Abstract: 1472172 Lamps LUCAS ELECTRICAL Ltd 25 June 1974 [18 Aug 1973] 39176/73 Heading F4R A lamp for supplying light to one or more optical cables 13 comprises a hollow body 15 containing a bulb 12, one or more apertures 23 in the wall of the body through which light can pass to enter the respective cables, and a panel 19 engageable with the body to trap the ferrule 14 on the end of each cable against a flange 18 on the body so that the end of each cable is aligned with its respective aperture. The flange is provided with a radial groove (26) corresponding to each aperture to receive a respective ferrule, a rib on the ferrule engaging in slots 24, 25 in the flange and panel respectively to hold the ferrule in place. The panel is formed with a central aperture 21 through which the body 15 is pushed, withdrawal of the body being prevented by sharp tags 22. One side of the panel is shaped to define a spring clip 27 for attaching the lamp to the edge of a plate.
Patent GB-1398923-A (GB)
Title: Vehicle coupling
IPC: B62D53/06
Filed: 1972-03-06
Abstract: 1398923 Vehicle couplings R J GREATBATCH 1 March 1973 [6 March 1972 24 July 1972] 39325/74 and 39326/74 Divided out of 1398922 Heading B7T A coupling between a towing vehicle 30 and a trailer having a part of its weight supported by the towing vehicle comprises an A-frame 2 pivoted at 27 to the towing vehicle between the wheel base thereof and below the level of the rear wheel axle Y, the frame having a crossmember 25 which carries a stub axle 23A on which a first bearing 24 is journalled, two second bearings 20B projecting diametrically oppositely from bearing 24 and accommodating spindles 20A carried by brackets 19 attached to an apertured plate 31 bolted to a plate 11F of trailer tow bar 11E, the axle 23A and spindles 20A accommodating roll and yaw respectively. In Fig. 2 the brackets 19 are attached to a channel section member 12 which has a slot 13 in its flanges to receive the ends of a peg 10 projecting from goose-neck trailer towbar 11A, a pin 18 being inserted in apertures formed in the member 12 and towbar. The attachment comprising slots 13 and pin 18 may be made with a straight towbar, Fig. 3 (not shown).