baber/WOPTO huggingface dataset:
Patent GB-333386-A (GB)
Title: Improvements relating to telephone systems
IPC: H04M19/00
Filed: 1929-08-02
Abstract: 333,386. Siemens Bros. &. Co., Ltd., and Crinsted, W. H. Aug. 2, 1929. Drawings to Specification. Automatic exchange systems. - The usual exchange battery is eliminated by the use of rectified alternating current which is fed through a smoothing device for speech-transmission purposes but is used unsmoothed for the operating-mechanisms of selectors. A lamp may be bridged across the speech supply leads to decrease the variations in voltage with varying load.
Patent GB-1421966-A (GB)
Title: Circuit arrangements for use in telecommunications switching  systems
IPC: H04L7/033
Filed: 1973-05-18
Abstract: 1421966 Multiplex pulse code modulation systems PLESSEY CO Ltd 21 March 1974 [18 May 1973] 23767/73 Heading H4L Incoming p.c.m. time division multiplexed information in pseudo-ternary bipolar form from a remote exchange is supplied to terminal I/P of a switching network and converted to binary form at BBC. The incoming bit rate is extracted at ICE and the binary information signals from BBC are converted into parallel form by 8-bit shift register SPC under the control of local clock pulses. A local clock generator ECPG produces two pulse streams A, B at the local exchange bit rate and displaced from each other by half a bit period. A " forbidden area " pulse generator FAPG generates pulses of predetermined duration relative to the leading edge of each incoming bit period and a local " forbidden area " pulse generator in overlap detection device ODL generates pulses of predetermined duration relative to the leading edge of each local clock bit period. The local " forbidden area" pulses are produced by combining the present phase of the local clock pulse stream with pulses of twice the local bit rate phase-shifted by 90 degrees and the incoming " forbidden area " pulses are produced by a monostable of period one eighth of the incoming clock pulse period. The two " forbidden areas " are compared at ODL to control AB changeover logic ABCL and determine which clock pulses A or B are used to clock the shift register SPC. The selected local clock pulses via 8-bit, i.e. channel counter RC control a 5-bit address counter AC coupled to random access memory RAM so that blocks of eight bits are transferred in parallel to memory RAM under the direction of write strobe WS. The arrangement compensates for drift of the frequency of the local exchange clock relative to that of the remote exchange clock.
Patent GB-879916-A (GB)
Title: An aircraft landing system
IPC: B64F1/20
Filed: 1959-07-10
Abstract: 879,916. Infra-red navigation. NIPPON ELECTRIC CO. Ltd. July 10, 1959 [July 18, 1958], No. 23784/59. Drawings to Specification. Class 40(3) Infra-red radiators, outlining an airport runway, are detected on an aircraft by an electron image tube, their position being indicated on a fluorescent screen.
Patent GB-1042273-A (GB)
Title: Improvements in and relating to silicone elastomers
IPC: C08L83/06
Filed: 1963-06-14
Abstract: A room temperature-curable silicone rubber stock comprises, by weight (1) 0.5 to 15 pts. of a silicon compound containng at least 3 Si-bonded -OR radicals, wherein each R is a monovalent hydrocarbon (h.c.) or halo-h.c. radical, or a radical of the formula R111(OCH2.CH2)a-, in which R111 is a monovalent h.c. or halo-h.c. radical and a is 1, 2 or 3, and (2) 100 pts. of R11COO(R12SiO)nOCR11, wherein each R1 is a saturated or unsaturated monovalent h.c., halo-h.c., or a cyanoalkyl radical, each R11 is H or a monovalent h.c. or halo-h.c. radical and n has a value of at least 5.  Reactant (1) may be a silane, a partial hydrolysate thereof, a siloxane containing Si-bonded -OR radicals and optionally -OH radicals or a silica filler having surface -OR radicals as described, e.g. in Specification 788,151.  The stock desirably contains a condensation catalyst, numerous examples of which are given, and fillers and known additives may also be added.  The stocks can be dissolved or dispersed in inert solvents.  Articles can be made by forming the above composition containing a condensation catalyst to the desired shape and contacting the shaped composition with water, preferably water vapour, at a temperature within the range of from 25 DEG  C. to the decomposition temperature of the ingredients of the composition. Examples are given.  Uses.-For sticking other siloxane elastomers to steel; as sealants; as protective coatings; for electrical and thermal insulation; as impression materials in dentistry; for coating textiles; and for making foils, moulds and laminates.
Patent GB-261144-A (GB)
Title: Control of electric motors
IPC: B66C13/24
Filed: 1925-09-25
Abstract: 261,144. British Thomson-Houston Co., Ltd., Given, R. D., and Peacock, J. V. Sept. 25, 1925. Systems for continous current motors only.- In controlling a motor 22 for hoisting, excavat- ,ing, or other heavy work, by regulating a genera- -tor 20 which supplies the motor with current, each machine has a series field and a shunt or separately excited field, the two fields of the motor assisting each other and those of the generator opposing each other. During acceleration, resistance 28 is gradually cut out of the generator shunt field, and, after a certain number of steps, gradually inserted into the motor shunt field. The controller may have additional segments or resistances for effecting steps uf regenerative braking.
Patent GB-184710-A (GB)
Title: Improvements in or relating to casement windows
IPC: E05C17/18
Filed: 1921-09-10
Abstract: 184,710. Wilson, W. A. Sept. 10, 1921. Hinges readily separable about hinge pin.-In casement windows opening inwardly and outwardly, pivots on the frame engage divided sockets in the sash, one part f of each socket, Fig. 3, being removable when the window is in position so that the window itself may be removed by sliding the pivots through slots b<2> in the sash. A casement stay consists of pivoted parts g and h the part g being pivoted to the bracket k on the window, Fig. 7, and a spring- pressed bolt p adapted to engage recesses &c. in the stay. To open the window inwardly, a screwed plug h<1> is removed from the rod h, the rod disengaged from the casing m which is then turned down on the hinged part out of the path of the window. To secure the parts g, h in alignment a tubular sleeve is provided to bridge the joint.
Patent GB-1425469-A (GB)
Title: Temperature-dependent fuel flow regulators for burners
IPC: F16K31/68
Filed: 1972-05-23
Abstract: 1425469 Valves DUNLOP Ltd 14 May 1973 [23 May 1972] 24122/72 Heading F2V [Also in Division F4] A temperature-dependent fuel flow rate regulator, for use with a gas burner 4 in which the gas mixes with combustion air on leaving the burner, comprises a cylindrical block 2 having a number of gas passages 6 the outlets of which are covered by a split bi-metallic band 1 which expands as the burner warms up to increase the gas flow to the burner. On first lighting the burner the passages 6 are all closed and gas is supplied through an uncontrolled orifice 12. The band 1 is supported above a shoulder 7, so that gas may flow freely around it, by providing projections (not shown) on the lower edge of the band or by pinning the band to the block.
Patent GB-931863-A (GB)
Title: Improvements in or relating to calculators
IPC: G06G1/00
Filed: 1959-07-14
Abstract: 931,863. Mechanical calculating-apparatus. G. BADALAMENTI. July 14, 1959 [July 14, 1958], No. 24218/59. Class 106 (1). A mechanical calculating device for resolving given numbers into their prime factors comprises a rigid strip A bearing groups of inclined lines corresponding to prime numbers, and perpendicular scales A<SP>1</SP>, A<SP>11</SP>, and a cursor B which slides along the strip A and itself carries a slide C bearing a reference point at the centre, movable in a direction transverse to A. As shown, the graduation of the scale A<SP>1</SP> represents the odd numbers 1-99 only, and the graduation of the scale A<SP>11</SP> represents the hundreds (0, 100, 200, . . .). A network of lines is drawn parallel to these scales and any intersection may be represented by an ordered pair of numbers, e.g. (300, 41) which is taken to represent the single number 300+41, i.e. 341. Multiples of prime numbers are plotted upon the line matrix, for example if the prime 17 were to be plotted 1 X 17=17 would be at the point (0, 17), 2 x 17= 34 would be at (0, 34), . . ., 21 x 17=357 would be at (300, 57). A group of lines is drawn through points representing multiples of 17 which lie upon different " hundred lines." These lines have a characteristic slope and a corresponding line for the prime 17 is marked on the annular cursor. These lines are drawn for all primes up to a chosen limit. Multiples of primes of a higher order may simply be marked by a dot or circle on the matrix. To operate the reference point of the slide C is brought above the point representing the number whose prime factors are required. Any lines on the cursor which coincide with lines on the strip indicate the particular prime factors present.
Patent GB-240847-A (GB)
Title: Improvements in or relating to means for varying the wave lengths of valve transmitters for wireless or the like signalling
IPC: H03J3/08
Filed: 1925-09-30
Abstract: 240,847. Telefunken Ges f³r Drahtlose Telegraphie. Oct. 1, 1924, [Convention date]. Drawings to Specification. Thermionic generators. - In order to permit wide variations in the wave-length of an oscillating valve without necessitating alterations in the back coupling, the tuning elements are so arranged that L/CR remains constant, where L, C, R are the inductance, capacity, and effective resistance of the plate oscillatory circuit. The ratio L/C is kept constant by a suitable mechanical linkage between the controls of the inductance and capacity. The effective resistance R of the circuit normally rises as the wavelength is shortened, and the invention provides means for keeping the effective resistance substantially constant. These means may comprise a rheostat in series in the oscillatory circuit, with its control member linked to the controls of L and C in such a way that the resistance is cut out as the wave-length is shortened. Alternatively, a fixed ohmic resistance may be placed in the circuit shunted by a condenser, the resistance of the combination automatically falling as the frequency rises. In another arrangement, a resistance with a high positive temperature coefficient, such as a metal filament lamp, is placed in circuit. With high frequencies, the effective resistance of the circuit (without the lamp) rises and the oscillatory current falls. With the lamp in circuit, however, its filament becomes dull and its resistance less, thus automatically restoring the total resistance to normal.
Patent GB-1320309-A (GB)
Title: Skin-treating compositions in sheet form
IPC: A61K9/70
Filed: 1971-04-19
Abstract: 1320309 Compositions in sheet form V P VARIOPHARM GmbH 19 April 1971 [18 March 1970] 24495/71 Heading A5B [Also in Division B2] Pharmaceutical and cosmetic compositions in the form of flexible sheets and films are made by forming an oil-in-water emulsion containing the active material and a water soluble or swellable film former and reducing the water-content of a thin layer thereof to from I to 15%. The oil phase of the emulsion is or comprises an oily or oleaginous substance such as an animal, vegetable or mineral oil. A conventional emulsifier is present as well as the film-former which may be a water-dispersable or swellable cellulose derivative, or an alginate. In an example, a piece of mull is incorporated into the sheet and reference is made to applying the sheet material to a backing such as a bandage or adhesive tape. Numerous active materials which may be incorporated are specified as well as such ingredients as TiO 2  and ZnO which increase covering power of ointments.
Patent GB-682776-A (GB)
Title: Improvements in or relating to joints for sheet material
IPC: F16B5/07
Filed: 1949-09-23
Abstract: 682,776. Joining metal sheets. COOKSON, W. April 24, 1950 [Sept. 23, 1949], No. 24539/49. Class 20(ii) [Also in Groups XVI Iand XXV] Means for connecting the edges of two panels A, B, Fig. 2, comprise a longitudinal resilient socket portion provided by folding the edge of panel A and adapted to receive the edge of panel B and slots 7 in the resilient wall 6 of the socket adapted to receive wedge-shaped projections 8 on the edge of the panel B, whereby the parts are interlocked. The spaced walls 3, 6 of the socket are connected by a roll portion 2 which provides sufficient lateral resilience to make a tight joint. The wall 6 is sufficiently springy in the longitudinal direction to allow the projections to engage or disengage in sequence without permanent deformation. In the form of Fig. 6 the resilient wall 13 of the socket is formed with a sloping shoulder 14 and an upturned lip 15, slots 16 being formed in the shoulder part 14. Projections 17 on the part B snap into the slots 16 and may be provided with sloping side edges so that relative longitudinal displacement between the parts A, B will cause the wall 13 to lift and allow the projections to move out of the slots. The parts can then be separated by pulling apart. In the form of Fig. 10 a releasing slider D is mounted to run on the resilient wall 21 of 'the socket, a part of the slider engaging under the lip 22 of the wall 21 to release the projections 17 from the slots 16 and a wedge portion 28 abutting a flange on the portion B to force it out of the socket. The socket part and the co-operating edge part may be curved' along their longitudinal axes.
Patent GB-929017-A (GB)
Title: Improvements relating to direct current track circuits for railway signalling systems
Inventor: DUCKITT HARRY
IPC: B61L1/18
Filed: 1959-07-17
Abstract: 929,017. Track circuit feed sets. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. July 15, 1960 [July 17, 1959], No. 24628/59. Class 105. In a D.C. track circuit feed set 16 for use in railway signalling systems in which only one rail 12 is divided by insulated joints 13, 14 into track circuit sections, e.g. section A, whilst the other rail 11 is continuous to provide a return circuit for an A.C. traction system, the direct current is derived from an A.C. supply via a transformer 17 and full-wave rectifier 19 and the alternating traction return current is prevented from interfering with the operation of the feed set by series chokes 22, 21, which form a high impedance at the traction frequency and a low valve shunt resistor 20. The resistor 20 is provided with an outer pair of terminals and an inner pair close to, but separate from the outer pair. The rectifier circuit is connected to one pair of terminals and the output circuit to the other pair.
Patent GB-1383422-A (GB)
Title: Golf balls
IPC: A63B37/06
Filed: 1972-05-25
Abstract: 1383422 Golf balls DUNLOP Ltd 15 May 1973 [25 May 1972] 24663/72 Addition to 1087566 Heading A6D [Also in Division C3] A golf ball comprises a thread-wound core and a cover formed of a blend of two copolymers, the first being a copolymer of a mono-olefine and an unsaturated mono- or dicanboxylic acid and the second of ethylene and vinyl acetate. The second is preferably present in an amount from 5-30% by weight and contains from 10-40% by weight of vinyl acetate and the first preferably contains ethylene. The unsaturated carboxylic acid may be methacrylic acid or acrylic acid and the first copolymer may additionally contain a vinyl alkanoic ester, an alkyl acrylate or an alkyl methacrylate monomer. The first copolymer may contain thermolabile cross-linkages formed by the addition of a metal salt of the unsaturated carboxylic acid e.g. a sodium or zinc salt or by the addition of an inorganic or organic metal cross-linking agent whose metal forms ionic bonds with the carboxyl group, example being acetates of sodium or potassium or oxides of calcium, magnesium, or zinc. Fillers e.g. of zinc or magnesium oxide may also be incorporated up to 20% by weight of the combined first and second copolymers.
Patent GB-852496-A (GB)
Title: Light sensitive material for photomechanical reproduction
IPC: G03F7/022
Filed: 1958-07-31
Abstract: 2,5 diethoxy-1-(41-toluene-sulphonylamido)-benzene diazonium chloride is prepared by diazotising the corresponding amino compound. Analogous benzene-sulphonylamido-benzene diazonium salts are prepared similarly.  N-(41 methylbenzene-sulphonyl)-imido-benzoquinone-(1,4)-diazide-(4), N-(41 methylbenzenesulphonyl)-imido-2-methyl-5-methoxy-benzoquinone-(1, 4)-diazide-(4), N-(41 ethylbenzene-sulphonyl -imido-2,5 diethoxy-benzoquinone-(1,4)-diazide(4), N-(21 p methylbenzene-sulphonyl)-imido 2,5-diethoxy-benzoquinone-(1,4)-diazide-(4), N-(21,51-dichlorobenzene-sulphonyl)-imido-2, 5-diethoxy-benzoquinone-(1,4)-diazide-(4) and N-(41methylbenzene-sulphonyl)-imido-2, 5-dichloro-benzoquinone-(1,4)-diazide-(4) are prepared by a method analogous to that given for N-(41methylbenzene sulphonyl) imido-2,5-diethoxy-benzoquinone-(1,4) diazide-(4) in Specification 723,382.  The melting points of these various compounds are quoted.
Patent GB-1154025-A (GB)
Title: A Method of Objectively Testing Ampoules for the Presence of Extraneous Particles in the Ampoule Liquid
IPC: G01N33/00
Filed: 1966-06-02
Abstract: 1,154,025. Photo-electric detection of extraneous matter in ampoulers. FARBENFABRIKEN BAYER A.G. June 2, 1966 [June 2, 1965], No.24675/66. Addition to 1,082,928. Heading G1A. In an arrangement for detecting extraneous matter in ampoules as described in Specification 1,082,928 in which an ampoule is spun in a vertical position and then stopped, any extraneous matter then passing through a light curtain, extending closely to and over the bottom of the ampoule, and the matter in so doing altering the light intensity measured by a photo-electric receiver at which the light curtain is directed, the photo-electric signal passes to two discriminators having different thresholds. If the signal is greater than both thresholds of the ampoule is rejected but if it falls between the threshold a repeat test procedure is performed on the ampoule. The ampoule is accepted if the signal is less than both thresholds.
Patent GB-1083337-A (GB)
Title: Improvements in or relating to trip mechanism for record-changer gramophones
Inventor: CADDY EDWARD WILLIAM JOHN
IPC: G11B17/02
Filed: 1963-06-21
Abstract: 1,083,337. Gramophones. GARRARD ENGINEERING Ltd. June 10, 1964 [June 21, 1963], No. 24738/63. Heading G5R. The trip mechanism for a gramophone has an annular gear 1 on the turntable and a gear 2 whose teeth are interrupted. A trip lever 15 pivoted at 16 can move freely in its own plane and for a small angle at right angles thereto. It has a downwardly extending pin 18 which has a bevelled end resting on the slide 12. Towards the end of a record the end 9 of the pickup arm 3 moves the slide which moves the trip lever resting on it so that the end 17 of the trip lever 15 engages the annular gear 1. This moves the gear 2 a sufficient distance for it to engage the gear 1, and rotation of gear 2 returns the pick-up arm to its starting position by a conventional linkage shown diagrammatically at 4, 5, 6, 7 and 8. The bevelled end of the pin 18 enables the trip lever to ride up on to the slide in readiness for the next cycle of operation.
Patent GB-360990-A (GB)
Title: A machine for sharpening screwing taps and the like
IPC: B24B3/20
Filed: 1930-08-19
Abstract: 360,990. Grinding. HUNT, H. W. and HUNT, P., Elsinore Road, Old Trafford,. Manchester. Aug. 19, 1930, No. 24742. [Class 60.] Milling-cutters and like tools, sharpening.-A machine for sharpening taps and like tools consists. of means for partially rotating the tap and for simultaneously swinging it about an axis parallel to the axis of the tap laterally with respect to a grinding wheel, whereby the cutting-edge is backed off ; means also are provided for grinding the flutes. The machine consists of a base 10 having thereon a tray 11 supporting, in a pedestal 13, a grinding wheel 12, and, on a slide bar 17 and a face 18, a carriage 20 movable by a screw 25. The carriage supports, on shaped lugs 29, 30, a cross slide 31 movable by a screw 32 and having a projecting graduated quadrant 36, which is supported by a lug on the carriage 20. The slide 31 carries a slide rail 38 pivoted in a lug 37 and held in angularly adjusted position with respect to the quadrant by clamps 39, 40, and on the rail 38 are brackets 42, 43 secured by nuts 42a, 43a and carrying a shaft 44 on which are adjustably mounted a tailstock 46 and a headstock 46. In the headstock is mounted a spindle carrying a chuck 51 for the work, and upon the spindle is rotatably mounted a hand-lever 55. The lever, when oscillated, moves a cam plate 56 supported by a stud 57 on the lever and adjustable by an eccentric 58 carried by the lever, the cam plate being held up to a roller 48, in the bracket 42 by a spring-actuated link connected to the headstock. The lever 55 also carries pawls 64, 65 adapted to be engaged with ratchet wheels 62, 63 secured to the chuck spindle and having different numbers of teeth arranged so that taps with different numbers of flutes can be ground. Oscillation of the lever is limited in one direction by a stop projection on the headstock, and is adjustably limited in the other direction by a lug 67 on an angularly adjustable stop plate 66 held by a clamp 69. In operation, the tap is set to correspond to its taper by setting the rail 38 and the oscillation to be given is set according to the number of flutes by the plate 66. Oscillation of the lever 55 rotates the tap and the cam plate 56 causes it to feed into the grinding wheel, thus producing backing off ; reverse movement of the chuck spindle is prevented during return of the lever 55 by a spring-pressed friction pad 52. In order to grind the flutes, a grinding wheel 75 carried by an arm 74 pivoted to a bracket 73 is provided, a screw 78 limiting the amount by which the arm 74 can be lowered on to the tap. The Provisional Specification describes also a device for assisting in setting up the tap in the machine, and states that the wheel 75 may be used for trueing-up the end-face of the tap.
Patent GB-599949-A (GB)
Title: Improvements in carbons
IPC: C01B32/336
Filed: 1945-09-25
Abstract: Activated carbon of small particle size is obtained by exposing channel carbon black to controlled oxidation by introducing a relatively cool charge of the carbon into a furnace in the presence of atmospheric air the oxygen content of which is not substantially depleted and heating the carbon in the air to a temperature of 400-550 DEG C. for a period of 20-40 minutes.  The carbon black may pass through an externally-heated inclined rotating steel tube in co-current with a rapid current of air.  A chain extending through the inside of the tube and secured at the two ends so as to leave a small amount of slack, agitates the charge.  Specification 570,437, [Group VI], is referred to.
Patent GB-1110343-A (GB)
Title: Swimming doll
Inventor: ALLEN FRANK KENDALL
IPC: A63H23/10
Filed: 1966-06-03
Abstract: 1,110,343. Swimming doll. M. E. HOCKMAN; R. J. HOCKMAN and R. M. WALKER. 3 June, 1966, No. 24874/66. Heading A6S. A swimming doll comprises buoyant arms and body watertightly connected by resilient annular flanges 36, 38, so that the arms can rotate freely relative to the body, driven from within the body 'by battery 31, electric motor 17 and a transverse shaft to the ends of which the arms are connected releasably, so that they may be set at various relative ,positions. In one embodiment, the transverse shaft is in three pieces: two outer shafts 28, 29 and a central portion carrying pinion 24, which is rotated by the motor and has shafts 44, 46 on either side, each with a rectangular recess 47 into which fits the inner end 43 of the of the outer shafts, each connected non-releasably alt its outer end to an arm and passing through opening 41 or 42 in the body wall. To change their relative position, an arm is pulled away from the body (resiliently deforming the connecting flanges) to disconnect shaft 28 and socket 44, the arm rotated, and the shaft re-engaged with the socket.