baber/WOPTO huggingface dataset:
Patent GB-1366167-A (GB)
Title: Acoustic signal devices in telecommunications systems
IPC: H04M19/04
Filed: 1971-10-06
Abstract: 1366167 Acoustic signalling SIEMENS AG 6 Oct 1971 [7 Oct 1970] 46404/71 Heading G4F [Also in Divisions H3 and H4] An acoustic signalling device includes an electric oscillator driven piezo-electric element mechanically driving a diaphragm of an acoustic transducer. In the substation ringer shown A.C. ringing signals applied between a and b pass through a capacitor C1 which blocks D.C. line potential. The first half of each cycle passes through diode D1 and has no effect. The latter half of each cycle passes through D2 and commences to charge the capacitance of a piezoelectric element W. A thyristor T is connected in parallel with the piezo-electric element and to a potential divider R2, R3 so as to fire discharging the capacitance as soon as the charge reaches a relatively low level. The discharges take place at a frequency selected by choice of the values of R2 and R3 equal to the resonant frequency of the piezo-electric element which is mechanically coupled to the diaphragm of an acoustic transducer not shown. The natural frequency of the diaphragm is arranged to be equal to the resonant frequency of the piezoelectric element.
Patent GB-988217-A (GB)
Title: Improved paper coating composition
IPC: D21H19/58
Filed: 1963-11-25
Abstract: A paper coating composition comprises a neutral or alkaline aqueous slurry of a paper-coating grade mineral pigment and a dispersed hydrophilic elastomeric resin, the resin being a thermoplastic polymer prepared by emulsion polymerization of 34 to 46% of a conjugated 1-3-diolefin, 19 to 34% of a vinyl aromatic monomer 1 to 15% of an acrylonitrile and 10 to 18% of an alpha-beta-unsaturated carboxylic acid.  Specified diolefins are butadiene, piperylene, isoprene, hexadiene, chloroprene and chloropentadiene, specified aromatics are styrene vinyl toluene, p-ethylstyrene, p-chlorostyrene, and 2-4 dichlorostyrene specified "nitriles" are methacrylonitrile and alpha-butylacrylonitrile while alpha-chloro-acrylic acid, ataconic acid, fumaric acid, maleic acid, citraconic acid and teraconic acid are specified acids.  Conventional emulsion polymerization technique is employed.ALSO:Paper is coated with a composition comprising a neutral or alkaline aqueous slurry of a paper-coating grade mineral pigment and a dispersed hydrophilic elastomeric resin, the resin being a thermoplastic polymer made by emulsion polymerization of 34-46% of a conjugated 1-3-diolefin, 19-34% of a vinyl aromatic monomer, 1-15% of an acrylonitrile and 10-18% of an alpha-beta-unsaturated carboxylic acid (see Division C3).  The coating composition is prepared from the emulsion polymer by mixing, the pH being adjusted with an alkali and conventional adhesives, e.g. casein added.  The coating weights may be in the range of 2,5-30 pounds dry solids per ream per side and the base paper weight in the range of 30-500 pounds per ream.  In the examples, (II) a polymer from 38 parts butadiene, 36 styrene, 10 acrylonitrile, and 14 glacial methacrylic acid is diluted with water to give 25% solids and pH adjusted to 8,5.  A paper web formed on a Fourdrinier machine from a mixture of bleached hard and soft wool fibres having long and short fibres is primed with a conventional clay-starch coating and then coated on both sides using two trailing blades in tandem, (III) 72 parts of the polymer mixed with 75 parts fine coating clay, 15 calcium carbonate, 10 titanium dioxide, 1 tetrasodium phosphate, 1 Vegetal and water to give 42% solids is applied to a 60 pound ream weight prime coated unsized body stock by roll coater, and (IV) 62 parts of the polymer mixed with 95 parts fine coating clay, 5 titanium dioxide, 1 tetrasodium pyrophosphate, 2,5 ammonia cut casein, 1 Vegetal and water to 43% solids is applied by air knife to the prime coated wire side of an overprint body stock.
Patent GB-1161639-A (GB)
Title: Independent Sprung Wheel Suspension
IPC: B60G15/07
Filed: 1967-10-16
Abstract: 1,161,639. Strut-type suspensions. BAYERISCHE MOTOREN WERKE A.G. 16 Oct., 1967 [29 Oct., 1966], No. 46972/67. Heading B7D. [Also in Division F2] In a strut-type suspension assembly including a telescopic damper 1 detachably secured in a carrier tube 3 connected to the wheel carrier 2, a space between the damper 1 and tube 3 is filled with liquid to improve heat dissipation from the damper. The damper 1 is axially clamped in the tube 3 between a screwed element 7 and a conical seat 8. Reference has been directed by the Comptroller to Specification 1,037,760.
Patent GB-1112118-A (GB)
Title: A method and apparatus for the continuous deposition of a bituminous composition under water or other liquid
IPC: E02B3/12
Filed: 1966-10-20
Abstract: 1,112,118. Spray-producers. SOLETANCHE. 20 Oct., 1966 [25 Nov., 1965], No. 47035/66. Heading B2F. [Also in Division E1] In an apparatus for filling a cavity with a bituminous composition comprising a tube 4 having a nozzle 1 fitted with a closure means 3, hot composition 8 is poured into the tube (via funnel 5) and the closure 3 released. In Fig. 1 the closure 3 is of wood and is held by a sleeve 2 surrounding the nozzle 1, the heat of the composition 8 fusing the sleeve, the fusion of which releases the closure 3. The composition may be kept hot by a heating rod 7 in the tube. The composition may be widely distributed by a plurality of means on the bottom of the tube which is slowly raised during discharge.
Patent GB-1328527-A (GB)
Title: Control circuit for a stepping motor
IPC: B41J11/44
Filed: 1970-10-02
Abstract: 1328527 Control of stepping motors MOHAWK DATA SCIENCES CORP 2 Oct 1970 [17 Nov 1969] 47066/70 Heading H2J A stepping motor 18 is supplied with energizing pulses W1 ... W4 from drive circuits 154c, 162c, 170c, 178c supplied by an encoding matrix formed by the AND and OR circuits of Fig. 3c, the inputs to the matrix coming from a binary, four-stage shift register SR1 which receives signals from an OR circuit 98b in accordance with a train of pulses STR spaced at sequentially decreasing time intervals, so that pulses AS produced by the pulses STR shift a bit through the register SR1 at the rate of one stage for each of the pulses STR and the encoding matrix alters the pattern of the pulses W1 ... W4 (two present, two absent) in corresponding sequentially-decreasing time intervals to cause acceleration of the rotor of the motor. After a predetermined number of pulses STR, a single shot multivibrator 58a will generate a STOP signal to initiate deceleration of the rotor by changing the pattern of pulses W1 ... W4 in sequentially-increasing time intervals, such initiation being dependent on the count in a counter 42a controlled by a pulse train 6LS or 8LS. If the latter count is greater than a predetermined value, the STOP pulse is not generated and the register SR1 is controlled by pulses DS which have a constant phase shift with respect to the pulses AS and STR and which thus change the pattern of the pulses W1 ... W4 at constant time intervals to cause the rotor to run at constant velocity. After such a period of constant velocity, during which the pulses 6LS or 8LS decrement counter 42a to its predetermined value, or if the counter 42a has not exceeded this value, the STOP pulse is generated and the shift register SR1 is fed through delay circuits D1 ... D4 which, together with the single shot multi-vibrators 60a, 62a, 64a, 66a, produce the pulse train having sequentially increasing time intervals for decelerating the rotor. Manual adjustment of the delay circuits D1 ... D4, the circuit producing the pulses STR and a potentiometer 81b provides for tuning to desired acceleration, deceleration and constant velocity conditions. The motor provides the drive for feeding a paper print form through the line printing device of a web feeding system (see Division B6), the pulses STR, 6LS, 8LS being provided by a transducer sensing the tracks on a strobe disc rotatable with the rotor shaft, the pulses VFU being provided by a transducer sensing the tracks on a format control tape, and the pulses 6LPI, 8LPI determining operation of the system, when started by a begin-paper-feed pulse BPF, according to whether a 6 or 8 line per inch mode is desired, Fig. 1 (not shown). Operation of the system for these two modes is described, Figs. 4 to 7 (not shown), a further shift register SR2 operating in tandom with the register SR1 during the 8 line per inch mode.
Patent GB-1114667-A (GB)
Title: Valve operating mechanism
Inventor: PASK WILLIAM JOHN
IPC: F01L1/20
Filed: 1966-10-21
Abstract: 1,114,667. Cam followers. FORD MOTOR CO. Ltd. 21 Oct., 1966, No. 47241/66. Heading F2K. In a valve operating mechanism of an internalcombustion engine, a tappet 12 is in two parts 14, 16 which are screwed together, the upper part 14 being engaged by a cam 11 and the lower part 16 engaging a valve stem 18, and opposed gear teeth 28, 29 on the parts 14, 16 are adapted to be engaged by a toothed tool 31, Fig. 2, to effect relative rotation of the parts and hence tappet adjustment. The two threaded parts 14, 16 are locked against relative rotation by a spring washer 25 located between a shoulder 26 on part 14 and a circlip 27 on part 16. Alternatively, a self-locking thread could be used.
Patent GB-1453696-A (GB)
Title: Method for the production of solid particles
IPC: A01N25/02
Filed: 1972-10-13
Abstract: 1453696 Dispersions of solids RENTOKIL Ltd 15 Oct 1973 [13 Oct 1972] 47449/72 Heading B1V [Also in Division A5] A process for the production of solid particles comprises mixing a solution containing at least one normally solid material and at least one emulsifier with a liquid in which the solvent system is readily soluble but not flash soluble and the solute is insoluble, the liquid, the solvent system and the emulsifier system being so chosen that on mixing the solution with the liquid a micellular emulsion is formed in which there is a gradual migration of the solvent from the micelles, precipitating the solid material. "Not flash-soluble" is defined as meaning that the liquids are miscible but that there is a short delay after mixing before the solution of one in the other is formed. In examples, a solution of a pesticide (e.g. idofenphos, lindane, bromophos, or propoxur) in a water-miscible solvent (e.g. 2-ethoxy-ethanol) containing a wetting- agent is added to water. An emulsion of micelles is formed which changes to a dispersion of finely-divided solid suitable for application to surfaces. The solution may also contain nucleating agents e.g. finely divided silica and other liquids e.g. kerosene or glycerine.
Patent GB-1092627-A (GB)
Title: A method of and apparatus for producing clean ingots
IPC: B22D9/00
Filed: 1964-11-23
Abstract: 1,092,627. Casting-machines. SUMITOMO METAL INDUSTRIES Ltd. Nov. 23, 1964 [Nov. 30, 1963], No. 47603/64. Heading B3F. A filled ingot mould is rotated about its vertical axis and then rotated bodily about a vertical axis so that it assumes an inclined position with the upper end of the mould toward the axis. The metal may be poured into the mould while it is rotated about its vertical axis by an electric motor 8. The rotation of the mould about its own axis may be continued during solidification by an electric motor mounted on the mould support.
Patent GB-1453473-A (GB)
Title: Method for atomising waste sulphuric acid and acid-cracking furnaces equipped with ultrasonic atomisers
IPC: C02F1/02
Filed: 1973-10-12
Abstract: 1453473 Spray producers DAVY POWERGAS GmbH 12 Oct 1973 [14 Oct 1972 17 Nov 1972] 47726/73 Heading B2F [Also in Divisions Cl and F4]  An ultrasonic atomiser 1 for atomising waste sulphuric acid in a cracking furnace 6, Fig. 5, comprises an ultrasonic generator 3, Fig. 2, with an annular resonance chamber 3a located therein, a pipeline 3i for feeding in the operating medium, e.g. a gas or vapour for the ultrasonic generator, and a surface 3f for directing the stream of operating medium from said pipeline into chamber 3a, wherein a rotary atomiser 19 or a pressure atomiser (16) Fig. 1, (not shown) is provided and a feed pipe 20 for the waste acid extends into the cup 19a of the rotary atomiser, said pipe having a plurality of lateral orifices 20a. The annular space 15 between atomiser 19 and generator 3 is connected by a pipeline 15a to a source of gas under pressure, which forms a gas buffer to prevent entry of other gases into said space. Atomiser 19 is connected to a hollow rotary drive shaft 17 mounted coaxially around the acid feed pipe. The operating medium is preferably low pressure steam or alternatively compressed air or a combustible gas. In an alternative embodiment the ultrasonic generator is surrounded by the outlet orifice of the feed channel for waste sulphuric acid. The cracking furnace is generally cylindrical and includes a burner 7 located centrally in its roof 6a and a plurality of ultrasonic atomisers 1 located in the roof and distributed uniformly around and equidistant from the burner.
Patent GB-1253409-A (GB)
Title: An electric alarm clock
IPC: G04C21/20
Filed: 1969-09-29
Abstract: 1,253,409. Alarm clocks. UHRENFABRIK SENDEN G.m.b.H. Sept.29, 1969 [Sept. 28, 1968], No. 47870/69. Heading G3T. In an alarm clock having an electric movement, an electrically illuminated clock face, and an electrically actuated alarm, a manually operable and automatically returnable stop mechanism stops and keeps stopped, the alarm and switches on the clock face illumination and an alarm control mechanism is arranged to actuate the alarm at a predetermined time for a limited period and to cancel operation of the stop mechanism on expiry of said period, and to prevent operation of the stop mechanism from interfering with subsequent or simultaneous actuation of the alarm by the control mechanism, and the arrangement is such that the stop mechanism when operated before or at the same instant as the alarm actuation is ineffective to stop the alarm until release and re-operation of the stop mechanism. The alarm may comprise a buzzer the circuit of which is completed at a desired time when an arcuate contact 21 Fig. 3 (not shown) or the hour wheel 7 engages an alarm wheel (11). This occurs when projections on the hour wheel 7, Fig. 1a which is urged axially by a spring 14, are permitted to enter recesses in the alarm wheel (11). The arcuate contact (21) is formed integrally with a contact plate (22) connected in the alarm circuit via resilient blades 29. 30 carried by an arm 31 which is movable about a pivot pin 32 when the hour wheel 7 is moved axially, to engage a contact 37, Fig. 1c (not shown), carried by its end 36, with a fixed contact 38. The alarm is interrupted by manual operation of a lever 42 to pivotally move a lever 56 so that a projection 60 at its end 59 separates the contacts 37, 38 and is held therebetween by a catch 61. If the lever 42 is operated before the alarm has been actuated the end 59 will not be retained between the contacts 37, 38 and the levers 42, 56 on release are returned by a spring 57. On operation of the lever 42 simultaneously with the initiation of the alarm actuation of the end 59 is prevented from entering the contacts 37, 38 by a projection 47 at the end 63 of an extension 62 of the spring 14. Whenever the lever 42 is operated the clock face illumination is energized by the completion of a circuit through the lever 42 and a contact 49.
Patent GB-1489177-A (GB)
Title: Digital data signalling systems and apparatus therefor
IPC: H04L25/49
Filed: 1973-10-16
Abstract: 1489177 Data transmission; synchronizing; D.C. suppression GENERAL ELECTRIC CO Ltd 16 Oct 1974 [16 Oct 1973] 48145/73 Heading H4P To provide timing information also reduce fortuitous D.C. bias, signals are transmitted at twice input bit rate and are coded as follows: one input value, e.g. 0=01 (or 10) another input value, e.g. 1 = 00 alternate with 11. Decoding apparatus at a receiver includes a clock pulse generator synchronized in response to transitions between the two signal levels in the direction that occurs only at the end of pairs of digits. The arrangement may be installed in a station of a public telephone network which may include multiplexing equipment. Multi-level input signals, e.g. at 120 megabits/second are passed through terminal equipment 1 producing an NRZ waveform primes AND gate 10, on occurrence of 1 bits to pass clock pulses which switch bi-stable circuit 11, output passing to AND 13, receiving together with AND 14 the NRZ signals. AND 14 also receives clock pulses and outputs are combined in OR 15 to provide double rate binary signals. At the receiver incoming signals are equalized and shaped then passed through a delay 16 of one double rate bit period which is then passed together with the original to exclusive NOR 17 which supplies signals in which the second half of each bit period carries data in decoded form. This is then led together with the inverse through 19 to bi-stable circuit 20 clocked by a synchronized generator 18. Output 21 may be multiplexed. In a modification the double rate signal may be first converted into a balanced ternary signal where ternary 0 = binary 01 and the other values represent respectively 00, 11. The arrangement is stated to be particularly suited over short transmission paths, e.g. of the order of several tens of metres.
Patent GB-1458752-A (GB)
Title: Pipe or hose coupling
IPC: F16L37/088
Filed: 1974-11-07
Abstract: 1458752 Pipe couplings HERMAN VOSS VERWALTUNGS GmbH [trading as ARMATURENFABRIK HERMAN VOSS] 7 Nov 1974 [10 Nov 1973 20 Sept 1974] 48175/74 Heading F2G A pipe coupling comprises a nozzle 2 insertable into a coupling head 1 to be positively locatable relative to the coupling head 1 by a locking element retainable by the coupling head 1, the locking element comprising a resilient ring member 3 provided with a radial gap 18 and two resilient arcuate arm members 19 and 20 each connected with the ring member 3 and extending to partially embrace a body portion 14 of the coupling head 1 provided with a circumferentially extending slot therein to permit the ring member 3 to be introduced into the coupling head 1 and with an internal circumferential groove 16 to partially receive the ring member 3, and the nozzle 2 being provided with an external circumferential groove 12 to at least partially receive the ring member 3. The end of the nozzle to be inserted incorporates a frusto-conical portion 10 to increase the diameter of the ring member 3 upon insertion until the ring member 3 drops into the groove 12 thus locking the coupling. The coupling may be unlocked either by insertion of a tool into the gap 18 or by pressure on the extreme end of the arm member 19 and 20 which can be provided with gripping projections having a rough outer surface. In alternative embodiments the ring member 3 may be concentric or eccentric with body portion 14 and may include a projection to be inserted into a corresponding recess in the body portion 14 to stop relative rotation between the ring member 3 and the body portion. In order to enhance sealing, the gap 18 may extend from inner to outer surfaces in a labyrinthine path.
Patent GB-1147356-A (GB)
Title: Improvements in or relating to semi-conductor switching elements
IPC: H01L45/00
Filed: 1966-10-27
Abstract: 1,147,356. Semi-conductor devices. DANFOSS A/S. 27 Oct., 1966 [10 Nov., 1965], No. 48189/66. Heading H1K. A junctionless non-rectifying solid state switching device comprises a body composed of antimony and selenium with opposed electrodes applied thereto. The antimony is preferably present in an excess of 1 or 2% above the stoichiometric ratio. The body may be formed by withdrawing a crystal from a melt or by cathodic evaporation.
Patent GB-1329369-A (GB)
Title: Process for preparing 4-aminopyrimidine derivatives
IPC: C07D239/42
Filed: 1971-10-18
Abstract: 1329369 4-Aminopyrimidines SHIONOGI & CO Ltd 18 Oct 1971 [22 Oct 1970] 48409/71 Heading C2C 4-Aminopyrimidines of the general formula wherein R 1  and R 2  are each a hydrogen atom or methyl or ethyl group, are prepared by reaction of an amidine and an acid anhydride of the respective general formulµ R 1 CH 2 C(=NH)NH 2  and R 2 COOCOR 3 , wherein R 3  is a hydrogen atom or methyl or ethyl group, provided that R 2  and R 2  are not both hydrogen atoms; and hydrolysis of the resulting mixture. Certain of the products are identified by comparison with products obtained by known routes.
Patent GB-1439049-A (GB)
Title: Wear-and corrosion-resistant alloy
IPC: C22C29/00
Filed: 1973-10-18
Abstract: 1439049 Nickel or cobalt alloys E I DU PONT DE NEMOURS & CO 18 Oct 1973 [15 Feb 1973] 48595/73 Heading C7A A wear- and corrosion -resistant alloy comprises by weight:- 20 to 42% molybdenum 1.5 to 12% silicon 17 to 25% chromium in a cobalt-base alloy or 8 to 22% chromium in a nickel-base alloy the balance being cobalt or nickel in an amount of at least 45% together with impurities and incidental elements e.g. up to 0À6% manganese, up to 2% iron. The alloy has a microstructure consisting of 10 to 100 volume % of a hard phase at least half of which is laves phase, a ternary silicide intermetallic with up to 90 volume % of a relatively soft matrix phase; the laves phase must constitute at least 10 volume % of the overall alloy. These alloys find particular use in the chemical industry since they are resistant to corrosive fluids even at temperatures up to 100C and when subjected to friction. They can be produced by conventional melting and cooling to form rods or other articles, or by powder metallurgy. Alternatively, the alloy can be formed as a coating on metal substrates by plasma spraying.
Patent GB-1328216-A (GB)
Title: Combustion of liquid hydrocarbons
IPC: B05B1/26
Filed: 1970-10-13
Abstract: 1328216 Liquid fuel burners W BRODLIN 13 Oct 1970 [14 Oct 1969 11 Aug 1970] 48596/70 Heading F4T A liquid fuel burner for producing a substantially noiseless, soot free blue flame comprises an air supply tube 2 which converges towards its outlet 4, an oil nozzle 6 positioned along the longitudinal axis of the tube 2 and having its tip 5 lying in the plane of the outlet 4, and a hollow distributer 8, having a plurality of circular holes 10, positioned downstream of, with a convex wall facing, and in axial alignment with, the outlet 4, the crosssectional area of the outlet being less than the projected area of the distributer parallel to the plane of the outlet and the arrangement being such that, in use, high velocity air leaves the supply tube 2 in a concentrated jet, substantially all of which impinges on the distributer. The distributer may be hemispherical, as shown, spherical, dish-shaped or cylindrical and is supported by a rod 9, the distance between the outlet and the distributer being adjustable. In an alternative embodiment a second distributer is mounted downstream of, and is isolated from, the first distributer and serves as an ionization probe.
Patent GB-1081324-A (GB)
Title: Process and apparatus for vacuum coating articles
IPC: C23C14/24
Filed: 1964-11-30
Abstract: <PICT:1081324/C6-C7/1> Se vapour discharged horizontally from an evaporation chamber is deposited on Al cylinders to form an electro-photo-sensitive coating.  Within a vacuum chamber formed by a tank 15 and a base 16, aluminium cylinder 5 are mounted between spacing rings 6 on supporting members 3 by spring clips 8.  The members 3 can be rotated by driving mechanisms 10 and maintained at a constant temperature by circulation of hot water, this temperature being measured by an electric signal from slip rings 12.  The evaporation chamber 1 comprises a side wall pierced with a large number of 1-2 mm dia holes and a closable inlet 2 for charging Se into a vessel within chamber 1.  Heaters are disposed inside, outside or around the side wall to prevent deposition on this wall. Coating is carried out in a vacuum of 5 x 10-5 mm Hg by heating the Se to 295 DEG  C. and rotating the cylinders.  To load and unload cylinders the tank 15 provided with hangers 14 may be raised by a travelling crane and the cylinders moved on rings 6 to avoid touching them.  With the tank raised prior to coating dust may be removed from rotating cylinders with an air spray.