baber/WOPTO huggingface dataset:
Patent GB-387833-A (GB)
Title: Improvements relating to the photographic recording of sound
IPC: G11B7/00
Filed: 1932-01-26
Abstract: 387,833. Optical sound recording apparatus. BRITISH ACOUSTIC FILMS, Ltd., Film House, Wardour Street, London. -(Assignees of Poulsen, A. ; 7, Hoyrups Alle, Hellerup, near Copenhagen, and Petersen, A. C. G. ; 183, Norrebrogade, Copenhagen.) Jan. 26, 1932, No. 2393. Convention date, Jan. 26, 1931. [Class 40 (ii).] Comprises a method of producing photographic variable-density sound records wherein when the sound intensity does not exceed a predetermined value the recording is effected in the usual manner over a constant minimum width of the film, but when the sound intensity exceeds that predetermined value the density variations are maintained substantially constant while the width of the record is varied in accordance with the sound intensity. Fig. 4 shows a circuit diagram of the device used to produce a record of the kind shown by Fig. 2. Currents from a microphone d, passed through an amplifier e, are fed to a transformer f and then amplified by a valve g to influence a light source h. Light from the source h is projected through a slit y to form a variable-density record on the film l. A portion of the microphone currents is taken to a transformer n, the secondary winding of which is included in the grid circuit of a rectifying valve p connected by a coupling resistance r to an amplifying valve q. By selection of the grid bias for the valve p, its plate current can be made zero for so long as the microphone current intensity does not exceed a predetermined minimum value. When the intensity exceeds such value, the negative grid voltage of the valve q is increased so that the plate current of this valve decreases. This plate current actuates a relay u. connected mechanically to a shutter m and to an adjustable resistance v which is connected in parallel with the grid leak resistance x of the valve g. So long as the microphone current intensity is below the predetermined value, the plate current of the valve q is constant and the adjustment of the shutter m and of the resistance v remains unaltered so that the sound. recording is effected as a variable-density constant-width record. Upon increase of intensity of the sound currents above the predetermined value, the plate current of the valve q decreases so that the free portion g<1> of the slit y is increased and the resistance v is altered to reduce the amplification of the valve g at the ,same rate as the width y<1> is increased. This maintains the range of density of the resultant sound record substantially constant while its width is varied in accordance with the sound intensity. According to a modification, the current from the valve q controls the angular position of an oscillograph mirror which reflects the recording light beam on to the record film. The apparatus may be arranged, by the employment of two oppositelydisposed shutters m, to produce a record as shown by Fig. 1.
Patent GB-1173185-A (GB)
Title: Carbanilates
IPC: C07C271/06
Filed: 1967-01-17
Abstract: 1,173,185. Pesticides containing carbanilates. UNION CARBIDE CORP. 17 Jan., 1967 [18 Jan., 1966], No. 2407/67. Heading ASE. [Also in Division C2] A pesticidal composition comprises a carrier and a compound of the formula where R 1  is alkyl, alkenyl, alkynyl, aryl or aralkyl and may be substituted, X is oxygen or sulphur, R 2  is hydrogen or alkyl of not more than 4 carbon atoms, R 3  and R 4  are hydrogen or alkyl, R 5  is hydrogen, halogen, alkyl, alkoxy or alkylthio, or R 3  and R 5  together form alkylene of 3-5 carbon atoms, the total number of carbon atoms in R 3 , R 4  and R 5  not being more than 7.
Patent GB-484238-A (GB)
Title: Improvements in or relating to convection heaters
IPC: F24H3/00
Filed: 1937-01-28
Abstract: 484,238. Air-heating stoves. COLE, Ltd., E. K., and SUTTON, R. W. Jan. 28, 1937, No. 2461. [Class 64 (i)] [Also in Group XI] The ratio of convection heat to radiant heat from a heater comprising an open-ended duct a containing the heating element d and surrounded by auxiliary airheating ducts b, c is altered at will by opening or closing a door h provided in the duct walls opposite the heating element, or by raising the element from its normal position to near the upper forwardly extending end of the ducts. A reflector f and a shield g below the heating element prevent direct radiation of heat from the element downwards to the floor of the room. The heating element is moved up and down by means of a handle on a shaft carrying sprocket wheels which engage chains secured to the element, or, in the case of a gas burner, by means of hinged links. Specifications 414,475, [Group XI], and 460,918 are referred to.
Patent GB-1085102-A (GB)
Title: A receptacle of plastics material for holding a moisture-containing food product suchas meat, and a packaged food product
IPC: A47J47/10
Filed: 1966-01-19
Abstract: 1,085,102. Butchers' accessories. AMERICAN EXCELSIOR CORPORATION. Jan. 19, 1966 [Feb. 8, 1965], No. 2478/66. Heading A4T. [Also in Division B8] A plastics receptacle or tray for holding moisture containing food, e.g. meat, susceptible to deterioration in absence of air has a liquid proof food support surface provided with a plurality of separated air containing wells into which liquid can drain. The receptacle may be used for packaging e.g. fruit.
Patent GB-471718-A (GB)
Title: Improvements in and relating to adjustable oarlock sleeves
IPC: B63H16/04
Filed: 1937-01-28
Abstract: 471,718. Oars. FRASER, F. W. Jan. 28, 1937, No. 2495. [Class 114] An oar is provided with an adjustable oar-lock sleeve constituted by a flanged tubular member formed of rubber, leather or other non- metallic material, and split, and an open metal ring is embedded in the flange. The sleeve 10 has a flange 12, is slit along the line 11, and contains aT-sectioned metal ring 14 with upstanding flanges 15, 16 which have a slit 13. When in position on the oar the sleeve is secured by a screw 17. In a modification, the metal ring instead of being circular in form is provided with bulges 23 and the sleeve and its flange may also have two slits 13, 24 with two sets of securing screws 17, 31. The sleeve portion is also adapted to be secured by screws directly to the oar.
Patent GB-936875-A (GB)
Title: Double melting in electron-beam furnaces
Inventor: DEUTSCH KURT
IPC: C22B9/22
Filed: 1961-01-23
Abstract: 936,875. Casting machines. IMPERIAL CHEMICAL INDUSTRIES Ltd. Feb. 2, 1962 [Jan. 23, 1961], No. 2579/61. Class 83 (1). A continuous casting, e.g. of niobium or tantalum, from an electron beam furnace is immediately received in a second electron beam furnace and remelted and, if desired, continuously cast. The furnaces are surrounded by vacuum chambers, and the emergent casting is preferably surrounded by a vacuum chamber in which it cools.
Patent GB-1379615-A (GB)
Title: Photographic hardening bleach-fixing bath
IPC: G03C7/42
Filed: 1972-01-19
Abstract: 1379615 Photographic hardening bleach-fixing bath AGFA-GEVAERT AG 19 Jan 1972 [21 Jan 1971] 2625/72 Heading G2C A hardening, bleaching and fixing bath contains an organic aldehyde as a gelatine hardener, an iron (III) or cobalt (III) complex of a complex-forming aminopolyacetic acid as a bleaching agent and sodium thiosulphate as a fixing agent. The hardener may be an aliphatic mono- or di-aldehyde and may be formaldehyde or an aliphatic dialdehyde having 4-5C in which the carbon chain may contain an O, S or N atom, e.g. succinaldehyde, glutaraldehyde, bis- (formylmethyl) ether, bis- (formylmethyl) sulphide or bis- (formylmethyl) amine, the last mentioned being optionally substituted on the N atom by methyl, hydroxyethyl or formylmethyl. The aminopolyacetic acid may be nitrilotriacetic, an aliphatic or cycloaliphatic 1, 2- or 1, 3- diaminotriacetic or diaminotetraacetic acid. The bath may be used in the silver dye-bleach process (see Example 5).
Patent GB-564207-A (GB)
Title: Improvements in or relating to electric motor controllers
IPC: H02P1/34
Filed: 1943-02-18
Abstract: 564,207. Electric selective control systems. IGRANIC ELECTRIC CO., Ltd. Feb. 18, 1943, No. 2716. Convention date, Feb. 23, 1942. [Class 40 (i)] [Also in Group XXXVII] The motor 1 driving a printing press is controlled by a rotor resistance 4 adjusted by a reversible pilot motor 7, which also adjust an associated slider on a potentiometer 8 to correspond to a selector tapping on a potentiometer 11, a balanced relay 12 having coils 12a connected between the potentiometer tappings controls the motor 7. With a relay 17 in the position shown, .the motor 7 adjust the resistor 4 to correspond to a selected tap 11d so that upon closure of button 16 and lifting of contactor 2, the motor 1 runs at " inching " speed. Closure of button 15 causes relay 17 to lift, lock itself up, lift contactor 2, and substitute tap 11b for 11d, thereby causing motor 7 to adjust resistor 4 for normal running speed of motor 1. Opening of button 17 causes system to revert to the condition shown. Upon abnormal conditions, e.g. lack of register, switch 18 is thrown to substitute tap 11e for 11b or 11d, whereupon motor 7 adjust resistor 4 for a creeping speed of motor 1.
Patent GB-745778-A (GB)
Title: Improvements in folding machines for laundry use
IPC: D06F89/00
Filed: 1954-02-01
Abstract: 745,778. Folding sheets &c. BROADBENT & SONS, Ltd., T., CRAN, W. B. G., IRELAND, A. A., PRITCHARD, H. K., and SPRECKLEY, F. March 11, 1954 [Feb. 1, 1954], No. 2897/54. Class 42 (2). In a folding machine for laundry flatwork in which the leading edge of an article b, Fig. 1, moving on a conveyer a is gripped against a stationary bar i by a movable plate g which is raised by a solenoid h when the article has lifted a first switch arm c and moved a second switch arm f projecting through a slot in plate g, arm f is supported at k by plate g; thus when the latter is raised arm f is moved backwards so that its bottom end cannot interfere with the gripping of the article edge against bar i. Arms c, f control switches d, e respectively in the circuit of solenoid h. When the trailing edge of the article passes arm c, the solenoid circuit is broken and plate g falls to release the leading edge of the article; the rate of descent of plate g is controlled by a dashpot to avoid trapping the article against conveyer a. Instead of using a dashpot, the final descent of plate g may be restrained by a catch o, Fig. 6, which is normally clear of plate g but is moved to the position shown by a solenoid r controlled by a switch s which is closed when the folded article raises a feeler u or interrupts a light beam to a photo-cell; alternatively the feeler may be connected mechanically to catch o, or solenoid r may be energized for a predetermined time when switch arm c is raised.
Patent GB-734617-A (GB)
Title: Improvements in the walls of buildings or like structures
IPC: E04B2/56
Filed: 1953-02-08
Abstract: 734,617. Walls; partitions. CHICK, E. D. Feb. 2, 1954 [Feb. 8, 1953], No. 2911/53. Class 20 (4). A cavity wall, or partition, is formed of vertically-spaced timber studs A, slabs B made, e.g., of lightweight concrete, cemented wood wool, plastic board, or other lightweight material, and nailed on opposite sides to the studs A, and reinforcing wires C, wound round hooked spikes, or nails 0, driven into an end wall of framing E, and passed over the outer faces of the slabs being preferably secured also to the slabs by staples, or hooked spikes F. The wires C are tensioned as the hooked members D are driven into the framing E. A rendering G which is finally applied to the rear wall, as shown, or to both walls, may consist of a number of coats of plaster, or cement and sand, which covers the wires and fastenings leaving a smooth, or textured face to the wall, or walls, so treated.
Patent GB-289566-A (GB)
Title: Improvements in and relating to thermionic valve coupling devices
IPC: H03H7/00
Filed: 1927-02-02
Abstract: 289,566. Pohu, G. E. A. Feb. 2, 1927. Couplings.-A device for coupling electric circuits, such as thermionic valve circuits, comprises a holder of magnetic material adapted to receive coupling units of standard dimensions by interchanging which the nature and degree of coupling may be varied. Units comprising coils, condensers, and resistances are provided so that choke-capacity, resistance-capacity, or variable ratio transformer coupling is afforded by the device. The holder comprises a U-shaped iron core 2 secured within an insulating casing 1 and recessed at 4 to receive bridging member 15 carrying the interchangeable units. The casing is provided with terminals 7 for connection to the circuits to be coupled, the terminals being connected internally to contact blades 6, 8. The interchangeable units are in the form of flanged discs 11 containing inductance coils, resistances, or condensers of various values. The coils are connected to contacts 13 on the faces of the discs adapted to co-operate with the contact blades 6. In the case of the condenser units, a pair of condensers may he provided in each disc, each being connected to one of the studs 13 co-operating with the blade contacts 6, and to one of a pair of contacts on the periphery of the disc, these contacts co-operating with the contact blade 8. Additional contact members 9 may be provided on two of the terminals 7 to support and connect in circuit a grid leak resistance. In order to connect in circuit a telephone or measuring instrument, blank units comprising contacts co-operating with the blades 6 and connected to spring terminals carried on the units may be provided.
Patent GB-591826-A (GB)
Title: Electrical contacting equipment
IPC: H01R41/00
Filed: 1945-02-06
Abstract: 591,826. Current-collectors; conductors. BENBOW, B. W. Feb. 6, 1945, No. 3026. Convention date, Jan. 31, 1944. [Class 104(iii)] Electrical contacting equipment comprises an insulating sheath 11, Fig. 1, embracing a trolley wire 10, the lower portion of the sheath having spaced openings 15 separated by gear-like ribs 14, and a contacting device comprising an endless series of articulated teeth 30 which are supported for traversing movement and urged into engagement with the exposed portions of the trolley wire, each tooth sliding relatively to the trolley wire commencing with its seating upon the wire and ending with its removal from its associated opening, such sliding movement being opposite to the general direction of movement of the contacting device. Each tooth 30 has an end face 30a for engaging the trolley wire and a base portion 30b which engages one of two busbars 41. These bars are provided on their upper faces with cavities filled with graphite or other lubricating medium and are pivoted by pins 42 to L-shaped levers 43 urged apart by a spring 46. The tooth enters a space 15 in the centre, as shown by the tooth in the right-hand space of Fig. 1, and sliding movement takes place so that on leaving its space the tooth is in contact with one of the teeth 14, as shown by the tooth in the left-hand space of Fig. 1. The contacting device may be mounted in a housing 35 of a moulded phenolic condensate product, made in two halves bolted to the ends of the axles 34 of the wheels 32 about which the endless chain of teeth is trained. The housing is provided with upwardly extending members 36, 37, Fig. 4, carrying flanged wheels 38, 39 which run on the base portions of the strips 17. The insulating sheath 11 may be made in two longitudinal halves embraced by the strips 17, the wall portions 19 of which are held together by spring tabs 21, 22 of a bracket 20 which serves to support the wire from the ceiling.
Patent GB-179245-A (GB)
Title: Liquid-level indicator for liquid containers
IPC: B64D37/00
Filed: 1921-01-25
Abstract: 179,245. Nicholson, A. Jan. 25, 1921. Indicators actuated by floats.-Liquid level in fuel-tanks is indicated by means of a float 10, or plurality of floats where the liquid is liable to surge, connected by bellcrank levers 9 pivoted at 11 to a bracket S secured to the inner side of the top of the tank, the inner adjacent arms 6 of the levers being connected to pistons 5 working in cylinders 4 which have a common delivery into a chamber 2 connected by a tube 3, filled with a suitable medium, with a bent glass tube or other indicator. In the case of a pressure feed tank, the spindles fitted with an eccentric are led through stuffing-boxes to pistons working in a dome attached to the outside of the tank. A number of modifications for actuating the cylinders are described including a pinion gearing with a rack formed on the pistons, spring- controlled differential cams and, for deep tanks, a screw cylinder operated by a cord connected with the floats. In a, further modification lazytongs mechanism is employed.
Patent GB-1178562-A (GB)
Title: A Propellant Means including an Additive to Reduce Erosion
IPC: F42B5/24
Filed: 1967-01-20
Abstract: 1,178,562. Polyurethane foam. POUDRERIES REUNIES DE BELGIQUE S.A. 20 Jan., 1967 [24 Jan., 1966], No. 3086/67. Headings C3C and C3R. [Also in Divisions C1 and F3] Polyurethane foam impregnated with talc is prepared by stirring the talc into a mixture of polyethylene glycol of low and high molecular weight, castor oil, totyl di-isocyanate and acetyl chloride, adding to the resultant mixture glycerol, polyethylene glycol, polypropylene glycol nioxdiol and dibutyl tin di-2-ethyl hexoate, and curing the mixture at 210‹ F. for at least 2 hours. MgO or 5i0 2  or a mixture of both can be used in place of the talc.
Patent GB-975195-A (GB)
Title: Ground effect machines
Inventor: JONES RICHARD STANTON
IPC: B60V1/00
Filed: 1962-01-26
Abstract: 975,195. Air cushion vehicles. WESTLAND AIRCRAFT Ltd. Dec. 24, 1962 [Jan. 26, 1962 (2)], Nos. 3151/62 and 3152/62. Heading B7K. A peripheral-jet air cushion vehicle comprises a base platform including pressurized air or gas cushion generating arrangements and a skirting extending below the base platform in a manner as to retard the escape of the pressurized air or gas cushion, thereby increasing the clearance height of the vehicle during operation, the vehicle being characterized in that the depth the skirting extends below the base platform is not greater than one-fifth times the minimum main dimension, usually the beam axis dimension of the platform area of the cushion. The vehicle is constructed in the manner described in Specification 975,193 and comprises a base 2 having an annular nozzle 12 formed by flexible skirts 19, 20 which extend below the base a distance GH which is not more than one-fifth dimension CD.
Patent GB-1063742-A (GB)
Title: Improved power transmission mechanism
IPC: F16H3/00
Filed: 1965-01-25
Abstract: 1,063,742. Reverse gear. ALLIS-CHALMERS MANUFACTURING CO. Jan. 25, 1965 [Feb. 6, 1964], No. 3154/65. Headings F2C and F2D. In a reverse gear for a forage harvester having a gear 11 axially slidable on an input shaft 2 to selectively mesh a pinion 28 of a forward gear train 28, 51, 59 or a reverse train pinion 58, one of the gear trains incorporates an overload release clutch 32. As shown, the overload release clutch is provided in the forward gear train and comprises a disc 29 fast with the gear 28 and carrying a pawl 32 the nose 36 of which engages recesses 35 in a rim 31 fast with the gear 51. The pawl is normally held in the recess 35 by a spring-pressed latch 37 engaging a recess in the pawl. The nose 36, recess 35, latch 37 and pawl recess are so shaped that on overload the latch is forced anticlockwise against the bias of the spring 39 to permit the pawl 32 to move out to disengage the coupling. The coupling remains disengaged with the pawl 32 held against a stop 44 by the latch 37 engaging the end of the pawl until manually reset. The ratio of the forward ratio may be altered by interchanging the gears 51, 59 or by replacing those gears with gears of different sizes. The pinion 11 is normally biased to the forward ratio position by a spring (Figs. 5 and 6, not shown) and moved manually to the reverse ratio position.
Patent GB-1391772-A (GB)
Title: Polymerisation process
IPC: C08F10/02
Filed: 1971-01-26
Abstract: 1391772 Polymerisation catalyst BP CHEMICALS INTERNATIONAL Ltd 13 March 1972 [26 Jan 1971] 3163/71 Heading B1E [Also in Division C3] A catalyst for polymerizing ethylene or a mixture of ethylene and at least one other 1- olefin comprises chromium oxide supported on silica, alumina, zirconia, thoria or composites thereof (e.g. silica-alumina) which is activated by heating at 250 to 1200‹C in the presence of a compound containing the hexafluorotitanate anion (e.g. ammonium hexafluorotitanate) and preferably also in the presence of air.
Patent GB-327227-A (GB)
Title: Arrangement of motor-cars for transporting goods and persons
IPC: B60P3/42
Filed: 1929-01-31
Abstract: 327,227. Sandberg, S. R. Jan. 31, 1929. Seats and seat backs, arrangement and disposition of.-In a vehicle in which the side-walls can be removed to form seats, the boards 4 forming the side-walls are provided with holes 10, Fig. 3, adapted to co-operate with pins 12, Fig. 1, on supporting trestles 11 when the boards are used as seats. Vertical stanchions 5 project from the edges of the floor of the vehicle and have hook-shaped plates 13 mounted thereon to carry one of the side-boards 4 to form a seat-back. The ends of the boards forming the sides are provided with plates 7 which are bent at the ends and engage in holes' 6 in the ends 2, 3 of the vehicle, or in an angle-iron 8 attached to the ends, in which case the plates 7 are locked in the angle-iron by bolts 9. A chain 15 passes through eyes in the top of the stanchions and is tightened by a device 16. The trestles &c. may be stowed in a box 17 under the floor or the vehicle.
Patent GB-1381902-A (GB)
Title: Universal pipe coupling
IPC: F16L59/18
Filed: 1972-01-25
Abstract: 1381902 Pipe couplings SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 25 Jan 1972 [27 Jan 1971] 3394/72 Heading F2G In a ball-joint coupling having a flexible envelope 4, resilient forces urging the pipe sections A and B apart increase the sealing pressure exerted by ring 3 on spherical surface 1. The pipe sections may be urged apart by a helical spring or by the resilience of envelope 4. Alternatively or additionally compressed gas may be introduced or may leak into the space 6 to provide or contribute to the sealing pressure. The space 6 may be filled with porous and flexible insulating material. The pipe sections may also be insulated (Figs. 4-6, not shown) and the pipe line used for liquefied natural gas. 0-ring seals of P.T.F.E. may be used in conjunction with scrapers for cleaning the spherical surface. An additional sealing ring may be resiliently urged into contact with the surface 1.
Patent GB-1500480-A (GB)
Title: Method and device for measuring pitch errors in gear wheels
IPC: G01B13/12
Filed: 1976-01-28
Abstract: 1500480 Measuring tooth pitch optically BJURO VZAIMOZAMENYAEMOSTI I METALLOOBRA-BATYVAJUSCHE PROMYSHLENNOSTI 28 Jan 1976 03434/76 Heading G 1A To measure pitch errors in a gear-wheel 8 it is continuously rotated and a non-contacting sensor 7 produces a signal when a flank of each tooth is in a predetermined angular position, one of these signals triggers the transmission of a train of reference signals having an interval between signals equal to the time of rotation of the wheel through the correct pitch angle, and the time interval between each sensor signal and a corresponding one of the reference signals gives the pitch error of each tooth. The sensor 7 may comprise a photo-electric detector 12 and light source 11 or utilize a pneumatic or acoustic jet. The reference signals are derived from a photo-electric signal generator 15 via a multiplier 23 and divider 24, and their transmission to phase comparator 25 is triggered by synchronizing device 26. The comparator 25 opens and closes electronic switch 28 to allow a number of pulse signals from a second train of higher frequency from interpolation unit 27 to pass to counter 30, the said number being proportional to the pitch error. A sign determination unit 34 controls the polarity of the output voltage of the D/A converter 31 which is fed to recorder 32.