baber/WOPTO huggingface dataset:
Patent GB-680956-A (GB)
Title: Improvements in electric circuit installations with guided current collectors
IPC: H02G5/00
Filed: 1950-09-14
Abstract: 680,956. Collectors. HAUSS, K. Sept. 14, 1950 [Sept. 14, 1949], No. 22645/50. Class 38 (i). A current-carrying system from which current may be collected at any point by sliding collector carriages guided therein, comprises several conductors 2 insulatingly arranged one above another on a supporting rail 1, the longitudinal edges of which form running tracks for the collector carriages, a U-shaped protecting casing 12 being removably fitted on the rail and extending beyond it, leaving a labyrinth-like slot between it and the rail through which access to the conductors is obtained. Fig. 1 shows one embodiment in which the rail is completely flat and each carriage comprises a base-plate 4 carrying sliding or rolling contacts 7 engaging the conductors 2, and spindles 5 carrying rollers 6 which engage the edges of the rail. Fig. 2 shows a modification in which the edges of the rail are bent over at about 45 degrees away from the side carrying the conductors, whereby the rollers may run alongside the rail to make the system more compact. In a further modification, Fig. 3 (not shown), the edges of the rail are bent over in U-form towards the side carrying the conductors. The axles of the rollers may be adjustable whereby the carriages may be removed from the rail at any point. Fig. 7 shows a carriage suitable for curved rails in which the rollers 6 are mounted on hinged wings 17, whereby they adapt themselves to the curves and maintain the contactcarrying part 4 at a constant distance from the conductors. Removal of a carriage from the rail is effected by taking out one hinge-pin. The rail is assembled in short lengths, adjacent lengths being connected by bolting on a strip 13, Fig. 9, expansion of the conductors being allowed for by leaving gaps between them and connecting them by flexible strips 14 bolted on their rear faces, the sleeve 13 and rail being cut away to permit access thereto.
Patent GB-1469507-A (GB)
Title: Aircraft navigation systems
IPC: G01S1/14
Filed: 1974-05-10
Abstract: 1469507 Radio navigation PLESSEY CO Ltd 10 May 1974 [11 May 1973] 22671/73 Heading H4D An aircraft radio navigation system comprises means radiating a first signal in a narrow course beam radiation pattern and means radiating a second signal in a wider clearance beam radiation pattern, the phase of one of the signals being cyclically inverted. As described, an ILS (instrument landing system) localizer, for providing azimuthal guidance for aircraft, comprises means for generating a single pair of CSB (carrier plus sidebands) and SBO (sidebands only) signals. The sidebands are produced by amplitude modulation of the carrier signal by 90 Hz and 150 Hz signals. The CSB and SBO signals are applied to respective power splitters 3, 4, Fig. 2. A first pair of output signals CSB1, SBO1 are fed out to derive the narrow beam course field radiation pattern by conventional means. A second pair of output signals CSB2, SBO2 are fed out through respective phase reversal switches 5, 6 and 90 degree phase delay circuits 7, 8 to derive the clearance field radiation pattern by conventional means. The phase reversal switch circuits 5, 6 cause the signals applied thereto to be cyclically reversed in phase at a low frequency, e.g. 10 Hz. The effect of this is that if any reflection of the clearance signal on to the course line takes place, the DDM (difference in depth of modulation) thus imposed reverses in sense at the rate of the phase reversals, and is effectively self-cancelling. The phase delay circuits 7, 8 are provided to obviate the problems that can arise if the CSB and SBO signals are in phase where the course and clearance radiation patterns cross (Fig. 1, not shown) The phase reversal switches 5, 6 may each cnmprise a bridge arrangement of four arms 9, 10, 11, 12, Fig. 3, of which the first three have the same electrical lengths, whilst the arm 12 differs in electrical length from the others by a half-wavelength (180 degrees). The input signal is fed to the junction of the arms 9, 10 and the output signal is taken from the junction of the arms 11, 12. A diode D1 is coupled through a quarter wavelength (90 degrees) line 17 to the junction 15 of the arms 9, 12 and a diode D2 is directly coupled to the junction 16 of the arms 10, 11. When the diodes are made conductive (by application of a 10 Hz frequency rectangular wave bias signal) the junction 16 is short-circuited, whereas the junction 15 is opencircuited. Hence, the signal is fed via the arms 9, 12. Conversely, when the diodes are made non-conductive, the signal is fed via the arms 10, 11. The invention may also be applied to ILS glide-path systems.
Patent GB-387706-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F04B3/00
Filed: 1931-08-11
Abstract: 387,706. Revolving-cylinder and reciprocating-piston motors. BURN, L., Tudor Cottage, Longparish, Hampshire, and THOMPSON BROS. (BILSTON), Ltd., Bradley Works, Bilston, Staffordshire. Aug. 11, 1931, No. 22676. [Class 122 (iii).] In a pump or motor of the type in which a square piston 60 reciprocates inside a rectangular frame 61, which reciprocates in a square recess in a revolving drum 62, two or more units are contained in a single outer casing 10. As shown, a shaft 67, mounted in the cover 55 of the casing 10, carries a disc 66, to which drums 65, 62 and a partition disc 59 are bolted. The drum contains rectangular frames 64, 61, inside which square blocks 63, 60 are mounted on eccentric bushes 58, 57 secured on a spindle 52. The latter is secured by a nut 54 in the cover 50 of the casing 10, and is supported in a bearing 69 in the shaft 67. Passages 80, 81 in the drums communicate with inlet and discharge openings 74, 70, 75, 71 in the casing. Alternatively the pistons 63, 60 may be secured eccentrically on the shaft 52, which is rotated. Specification 327,685, [Class 102 (i), Pumps &c.], is referred to.
Patent GB-1116973-A (GB)
Inventor: REISCHL A
IPC: D06N3/14
Filed: 1965-05-28
Abstract: A microporous polyurethane sheet structure permeable to water vapour is prepared from a solution having a solids content of 5-30% by weight and a Ford viscosity of 10-180 seconds (4 mm. outflow nozzle at spray temperature) and comprising: (a) a reaction product free of-NCO groups, of an OH containing polyester or polyesterurethane of M.W. 500-10,000 and from 90-115% of the quantity equivalent to the total of reactive hydrogen atoms present in the polyester or polyurethane of an organic polyisocyanate, 0.05-0.35 gram equivalents of the organic polyisocyanate being used to make 100 grams of the reaction product, (b) 3-26% by weight of an organic polyisocyanate calculated on (a), and (c) an organic solvent of B.P. below 120 DEG C., by spraying the solution on to a substrate through a stream of gas at not more than 80 DEG  C. below the B.P. of the solvent so that the sprayed solution is broken up into drops and 50-95% of the solvent is evaporated before reaching the substrate to form a non-melting structure.  The foil produced on solidification may be stripped from the substrate if desired.  Compounds reacting with isocyanates may also be included in the solutions in quantities up to 150 equivalents per cent excess, calculated on the isocyanate (b). Other resins may also be incorporated in the solutions, as well as curing catalysts, pigments &c. ALSO: A microporous polyurethane sheet structure permeable to water vapour is prepared from a solution having a solids content of 5-30%, by weight and a Ford viscosity of 10-180 seconds (4mm outflow nozzle at spray temperature) and comprising: (a) a reaction product free of -NCO groups, of an OH containing polyester or polyesterurethane of M.W 500-10,000 and from 90-115% of the quantity equivalent to the total of reactive hydrogen atoms present in the polyester or polyurethane of an organic polyisocyanate, 0.05-0.35 gram. equivalents of the organic polyisocyanate being used to make 100 gms. of the reaction product, (b) 3-26% by weight of an organic polyisocyanate calculated on (a), and (c) an organic solvent of B.P. below 120 DEG C. by spraying the solution on to a substrate through a stream of gas at not more than 80 DEG C. below the B.P. of the solvent so that the sprayed solution is broken up into drops and 50-95% of the solvent is evaporated before reaching the substrate to form a non melting structure.  The foil produced on solidification may be stripped from the substrate if desired.  The substrate may be a polyurethane wound fleece, a chromium plated steel sheet, leather, a textile, paper or a knitted fabric.  When the substrate is porous, e.g. a Perlon fleece, the surface of the microporous coating may be levelled by grinding, and coating compositions applied to form an artificial leather.
Patent GB-672192-A (GB)
Title: Improvements in convertible tables
IPC: A47B3/10
Filed: 1950-09-19
Abstract: 672,192. Tables convertible into trolleys. SCHRANZ, J. Sept. 19, 1950. [Sept. 19, 1949]. No. 23014/50. Class 52 (iii). [Also in Group XXXII] A table has a box-like top 1 containing wheels 14 on hinged brackets 15. The U-shaped legs 10, 11 of the table can be detached and re-fitted to serve as a handle and luggage rest for the trolley into which the table is then converted. A child's seat with tubular legs may be placed on the top 1, with horizontal feet engaging the holes 20 in the rim in place of the luggage rest 11, the device then serving as a perambulator.
Patent GB-188126-A (GB)
Title: Improvements in and relating to wooden stair-rods and fastenings
IPC: A47G27/06
Filed: 1921-09-01
Abstract: 188,126. Whitaker, Ltd., S. & T., and Whitaker, S. Sept. 1, 1921. Stair rods; stair-rod eyes.-Wooden stair rods a of substantially triangular form have their corners d bevelled and their other edges rounded, and the fastenings e are cut from the same pattern of wood moulding, their two ends g and f being cut at an angle of 45‹. The fastenings are affixed to the tread j and riser k by means of wood-screws i, a metal washer 1 with spikes 2 being used to prevent damage to the wood. The fastenings e may be used with rods of any other section, a cycloidal form being shown in Fig. 3.
Patent GB-955639-A (GB)
Title: Improvements in or relating to cigarettes
IPC: A24D3/04
Filed: 1962-06-15
Abstract: 955,639. Cigarettes. A. P. MILLER. June 15, 1962 [Jan 25, 1962], No. 23247/62. Heading A2C. A cigarette comprises a tobaccocontaining portion 4 and a tubular bit portion 6 providing a smoke passage 10, the bit portion having passageways providing communication between the exterior of the bit portion and the smoke passage. The passageways may be grooves 8, circumferential openings (Fig. 3, not shown) or may be formed by crimping the inner surface of the tubular bit 6 (Fig. 7, not shown). A cylindrical member 30 may be fitted into the passage 10. The member 30 includes a pair of annular grooves 32, 34 and has radial slots 36 tapered to converge from the upstream to the downstream end of the cylinder 30. Smoke drawn from the tobacco portion 4 is thus mixed with the air drawn through the grooves 8 in the member 30.
Patent GB-321655-A (GB)
Title: A contrivance for safeguarding food
IPC: A47G19/26
Filed: 1928-08-13
Abstract: 321,655. Ventris, F. W. Aug. 13, 1928. Meat safes.-A provision safe comprises a dish-like base f, a metal top a spaced from the base f by rods b<1>, b<2>, b<3>, a gauze curtain e which hangs in the form of a cylinder from the top a and has a ring g, which fits against the :inclined rim of the base, attached to its lower edge, and a cord d passing over pulleys c<1>, c<2>, c<3> and secured to the ring g so that it is raised, for insertion or withdrawal of food, by pulling the cord.
Patent GB-1115539-A (GB)
Title: Method for stabilizing polyoxymethylene
IPC: C08G2/28
Filed: 1967-05-19
Abstract: Polyoxymethylenes are stabilized by acetylating the polymer in a heterogeneous system by means of acetic anhydride, in which process the polymer is also subjected to ionizing radiation either before or during the acetylation. Pyridine may be present as an acetylation catalyst.  The examples also describe the preparation of the starting polyoxymethylene (1) by irradiating solid trioxan, (2) by polymerizing trioxan in nitrobenzene in the presence of BF3.(C2H5)2O, and (3) by polymerizing anhydrous formaldehyde in benzene in the presence of tetramethylthiuram disulphide.
Patent GB-676850-A (GB)
Title: Spring starter for an internal combustion engine
IPC: F02N5/02
Filed: 1950-09-18
Abstract: 676,850. Turning-gear. KLOCKNERHUMBOLDT-DEUTZ AKT.-GES. Sept. 22, 1950 [Oct. 10, 1949], No. 23338/50. Class 7(v) In an engine starter in which a spring, such as a spiral spring 6, Fig. 1, serves as a power accumulator, the spring 6 being secured at one end to the engine frame and at the other end to a rotatable housing 10 enclosing the spring and arranged adjacent the engine flywheel 3, which latter can be turned in the direction opposite to the normal direction of rotation of the crankshaft by an engageable and disengageable drive for the purpose of tensioning the spring, there are provided pawls 11, Fig. 2, secured to the flywheel and adapted to engage notches 12 in housing 10 so that when the fiywheel is turned in the opposite direction it carries with it the housing 10. The flywheel has a toothed ring 14, secured thereto by diametrically-disposed pins 15, Fig. 1, and in order to tension the spring 6 the ring 14, Fig. 2, is engaged by two pawls 16, 17 operated by a hand lever 21. Upon operation of the lever 21 the pawls alternately engage the toothed ring and turn the fly-. wheel and crank-shaft backwards through a given angle until spring-loaded pawls 11 each pivoted upon one of the pins 15 drop into notches 12 in casing 10 so that the latter is locked to the flywheel, further rotation of the flywheel then tensioning the spring 6, which may be released to accelerate the engine by moving the lever 21 into a recess 28 thereby disengaging the pawls 16 and 17 from the flywheel. When the engine is running the pawls 11 are moved out of notches 12 by centrifugal force. The angular tensioning motion of lever 21 is defined by stops 25 and 26. The rotation of the flywheel for tensioning the spring may be effected by an electric motor or other power means, and the spiral spring replaced by a helical one.
Patent GB-1000558-A (GB)
Title: Improvements in coupling devices for electric cables
Inventor: BARTON GEOFFREY
IPC: H01P1/04
Filed: 1961-06-28
Abstract: 1,000,558. Junction boxes. NORTHWESTERN SPECIALITIES Ltd, June 28, 1962 [June 28, 1961], No. 23348/61. Heading H2E. A coupler for cables with a covered metal sheath insulatingly spaced from an inner conductor or conductors comprises a hollow tubular body 1 counterbored and screw-threaded inside its ends to receive end nuts 2, a sleeve 3 flanged to abut the central part of the body bore, and a sleeve 4 which screws into one end of the latter. Fig. 1 shows the coupler used as a through coupling for two coaxial cables, in which sleeves 3 and 4 are fitted between the respective metal sheaths and the insulation surrounding the centre conductors, and are pressed against the sheaths when end-nuts 2 are tightened on to the sheath coverings. The inner conductors of the cables are soldered or plugged into a sleeve 7 within the central bore. Fig. 3 shows the coupler used as a cable termination, the flanged sleeve 3 being closed to accommodate a resistor 15 and a spacer sleeve 11 placed between sleeve 3 and the end-nut 2 which is also closed. To convert this arrangement to the through coupling the end of sleeve 3 may be sawn off. The coupler is sealed at its ends by deformable washers 5, 6 inside the end-nuts 2, and branch cables may be connected into it through screwholes 17 otherwise closed by studs 8 and washers 9.
Patent GB-257417-A (GB)
Title: Improvements in or relating to stuffing boxes for gas meters and the like
IPC: G01F15/00
Filed: 1925-09-18
Abstract: 257,417. Cooke, A. G., Phillips, B. C., and Phillips, R. A. Sept. 18, 1925. Stuffing-boxes, substitutes for; packing, non-metallic. - Packing which is especially applicable for the spindle of a gas meter, comprises flexible pads d pressed against concave surfaces in the bottom and cover of a box a by a spring b which grips the spindle. Each pad is gripped between two rings e, f, the outer ring f being formed with lugs a which grip the end coil of the spring b. In a modification, each pad is secured 'in a cup, the base of which is formed with eyelets through which the end coil of the spring is passed, the end of the spring being then bent over. The box a is packed with grease.
Patent GB-190764-A (GB)
Title: Improvements in swash-plate engines
IPC: F16H23/08
Filed: 1921-09-02
Abstract: 190,764. Rowledge, A. J., and Rolls- Royce, Ltd. Sept. 2, 1921. Engines with main shaft parallel to axis of cylinder; driving-gear.-In swash-plate mechanism which is especially adapted for internalcombustion engines, the swash-plate is enclosed by a casing through which lubricant for the bearings is supplied by pumps. Rotation of the casing is prevented, either by trunnions in blocks moving in guides, or by a gimbal ring. The swash-plate c, Fig. 1 is secured between the two parts of a casing, of which one part b<1> is integral with the shaft b, while the other part b<2> is secured to the shaft. The plate is enclosed in a casing d in two parts bolted together and having trunnions d<1> in blocks e<1> moving in guides e. The casing d has recesses for bearing pads f and has pockets d<2> for the bearings of the piston-rods g<2>. The latter have cup-shaped ends g<4> bearing on hemispheres d<3> mounted on pivots d<4> in the pockets d'. The piston-rod ends are secured by washers and nuts d<5>, d<6>. Splashing of lubricants into the engine cylinders is prevented by guards g<3>. In the modification shown, in Fig. 2, the casing d is supported by a gimbal ring e<1>, the trunnions of which are preferably in the plane of the bearings g<4>, the swash-plate disc c being consequently eccentric to the shaft. The disc c is formed at the periphery of a cup c', which is bolted to a flange b<1> on the shaft. The casing d bears on one face only of the disc through the medium of a pad f. Trunnions e<33> of the gimbal ring e' are supported in bearings in a bracket e' carried by the engine casing, while the other trunnions e<44> and e<4> of the gimbal ring carry the casing d. Specification 875/05, [Class 12, Bearings &c.], is referred to.
Patent GB-1342162-A (GB)
Title: Stand
IPC: F16B7/04
Filed: 1971-04-19
Abstract: 1342162 Stands: furniture joints STAFF & SCHWARZ GmbH 19 April 1971 [11 March 1970] 23369/71 Heading A4H [Also in Division E2] A column for a lamp stand is formed of sections 11, in the form of tubes or of rods with tubular end portions, detachably interconnected by bolts 14. Each bolt 14 has one or two clamping members 15 each in the form of a longitudinally gapped ring of spring steel rotatably located around an annular groove 17 in bolt 14. Each member has projecting beads 16. On insertion of the bolt in to a section 11, the clamping member 15 is compressed in to groove 17 and the beads 16 press against the inner wall of section 11. Bolt 14 includes a stop collar 18. The bolt ends are tapered, chamfered, and/or rounded. One or more lamps may be displaceable longitudinally along the column.
Patent GB-1498597-A (GB)
Title: Aromatic polyvinyl compounds their preparation and use
IPC: C08F291/02
Filed: 1976-06-07
Abstract: 1498597 Alkenylphenyl esters of polybasic carboxylic acids SUMITOMO CHEMICAL CO Ltd 7 June 1976 [5 June 1975 18 June 1975] 23455/76 Heading C2C [Also in Division C3] The invention comprises compounds (I), where R<SP>1</SP>-R<SP>7</SP> are hydrogen or C 1-20  aliphatic hydrocarbyl; A is an optionally substituted hydrocarbon residue; and n is 2 or 3, provided that when R<SP>1</SP> is methyl and R<SP>2</SP>-R<SP>7</SP> are hydrogen the group R<SP>1</SP>-C=CR<SP>2</SP>R<SP>3</SP> is o- or pto the oxycarbonyl group, and their preparation by reacting a compound (II), where M is hydrogen or alkali metal with a compound A(COY) n , where Y is -OH, -OR (where R is C 1-20  aliphatic hydrocarbyl) or halogen. The compounds of the invention are crosslinking agents and plasticizers for rubber (see Division C3).
Patent GB-506620-A (GB)
Title: Improvements in tuning inductances for high frequency circuits
IPC: H03J3/28
Filed: 1938-01-28
Abstract: 506,620. Inductances. HAZELTINE CORPORATION. Jan. 28, 1938, No. 23528. Convention date, Feb. 16, 1937. Divided out of 506,602. [Class 38 (ii)] In a variable inductance for tuning high frequency circuits over a wide frequency band and comprising a conductive shield 44 movable in relation to the winding 41 on a former 42, the co-operating surfaces of either the shield or winding or both being tapered, the winding is provided with an iron dust core 50 which is adjustable by means of a screwed rod 50a for adjusting the maximum value of the inductance. The shield may be movable axially but is preferably arranged to move in an arcuate path by being mounted on an arm 48 secured to a rotatable shaft 46 which may serve for ganging a plurality of inductances employed in various stages of a wireless receiver. Full dimensional particulars of the arrangement are given in the Specification.
Patent GB-619882-A (GB)
Title: Improvements in and relating to louspeaker units
IPC: H04R7/12
Filed: 1946-08-08
Abstract: 619,882. Loud-speaker diaphragms. BRITISH THOMSON-HOUSTON CO., Ltd., SIMPSON, H., and BOCOCK, W. A. Aug. 8, 1946, No. 23535. [Class 40 (iv)] An annular diaphragm for a moving coil closed type loud-speaker unit comprises inner and outer annular portions 1, 2, secured together and having a cylindrical coil former 6 integrally formed with one or both said annular portions. The diaphragm is suspended from the corrugated portions 4, 5 of the outer and inner annular portions respectively. Suitable combinations of thickness and type of material may be used and in a given example one annular portion is made of metal whilst the other is made of moulded paper.
Patent GB-533587-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L9/24
Filed: 1939-08-16
Abstract: 533,587. Vacuum cleaners. HOOVER, Ltd. Aug. 16, 1939, No. 23643. Convention date, Sept. 19, 1938. [Class 8 (i)] In a vacuum cleaner normally propelled over the carpet for floor cleaning and convertible to off-the-floor cleaning by attachment of a flexible hose, the mouth of the floor nozzle is closed during off-the-floor cleaning by a valve 14 within the nozzle. The adapter 32 is inserted in a port 18 and held by a spring latch. The plate 17 which normally closes the port 18 is pivotally carried by a bracket 19 on the valve. The bearings of the rotary agitator are releasably carried in an eccentric position on the ends of the rotary semi-cylindrical valve shown, and the agitator is thus lifted from the floor and its belt slackened in the off-the-floor position.