baber/WOPTO huggingface dataset:
Patent GB-1086889-A (GB)
Title: Colour bleaching catalysts for the silver dyestuff bleaching process
IPC: G03C7/28
Filed: 1965-11-19
Abstract: The invention comprises compounds free from COOH and SO3H groups of formula <FORM:1086889/C2/1> wherein at least one of the substituent pairs R1, R2 and R3, R4 is a carbocyclic aromatic group substituted by a sulphonamide group via the S atom and fixed to the pyrazine ring and in which the substituent in as far as it does not form a ring of this type is an alkyl, aryl, cycloalkyl or heterocyclic group.  The compounds are used as catalysts in photographic compositions (see Division G2).  In an example 2,3-dimethyl -8 - N - methylsulphamyl - benzoquinoxaline is prepared by reducing the o-aminoazo dye aniline -->2-aminonaphthalene-6-sulphomethylamide with sodium dithionite to yield 1,2-diaminonaphthalene-6-sulphomethylamide which is condensed with diacetyl; 2,3-dimethyl -8 - N,N - dimethylsulphamyl - benzoquinoxaline and 2,3-dimethyl-8-N-b -diethylaminoethyl -sulphamyl - benzoquinoxaline are also specified.
Patent GB-1508229-A (GB)
Title: Lubrication of internal combustion engine valves
IPC: F01L3/08
Filed: 1975-12-02
Abstract: 1508229 Lubricating I C engine valves SOC D'ETUDES DE MACHINES THERMIQUES 2 Dec 1975 [27 Feb 1975] 49534/75 Heading F1B The stem 1 of an intake or exhaust valve has an annular groove 12 providing intermittent communication between cavities 4 and 5 respectively communicating with a lubricating oil supply passage 9 and an annular cavity 14 axially spaced along the stem from the other cavities. The cavities communicate with radial holes 13 and 14 in the stem guides 2 and 3 and the cavity 8 between the guides communicates with a return passage 11 to the engine case. The oil may be supplied by a pump not mechanically driven by the engine and supplying oil only after a few engine revolutions.
Patent GB-1486707-A (GB)
Title: Method of and device for measuring the radius of a rotating grinding wheel
IPC: B24B49/00
Filed: 1975-12-04
Abstract: 1486707 Measuring radius of grinding wheel electrically ETABS ZELANT GAZUIT 4 Dec 1975 [6 Dec 1974] 49742/75 Heading G1N [Also in Division B3] A grinding wheel 1, Fig. 1, for operating on the surface of a square billet 8 supported on a table 9, is attached to two linked arms 2, 3 and urged against the billet by two fluid-pressure cylinders 7, 11. The billet is clamped against a shoulder 9a by an arm 13 controlled by a further pressure cylinder 14. The radius of the grinding wheel 1 is determined by measuring the angle w between the arm 3 and the horizontal, and the angle w 1  between the arms 2, 3, using rotary potentiometers fixed to hinged joints 4, 5. The appropriate mathematical calculations for determining the grinding wheel radius are performed in a computer Fig. 2, (not shown) using the-known fixed dimension of the assembly. The voltage signal representing the radius is used to control the angular velocity of the wheel 1.
Patent GB-1130077-A (GB)
Title: Improvements in or relating to photographic silver halide emulsions
Inventor: DERSCH FRITZ
IPC: G03C1/10
Filed: 1966-11-07
Abstract: 1,130,077. Photographic silver halide materials and processing. GENERAL ANILINE & FILM CORP. Nov.7, 1966 [Nov. 8, 1965], No. 49791/66. Heading G2C. An exposed photographic silver halide material is developed in the presence of a compound of the formula: - wherein R is hydrogen, alkyl of 1-4 carbons or a cation such as sodium, potassium, ammonium or an amine cation and Ri is hydrogen or alkyl of 1-4 carbons, and wherein the benzene ring of the above formula may be further substituted by inert substituents. Compounds specified are 3-carboxy- or -carboethoxy-4-hydroxy-7- trifluoromethyl-quinoline, 2-carboxy- or - carboethoxy-3-methyl-4-hydroxy-7-trifluoromethylquinoline and 2-carboxy- or -carboethoxy-3- methyl-4-hydroxy-5-trifluoromethylquinoline. The compound may be present in the silver halide material in the emulsion or an undercoat, intermediate coat or overcoat layer e.g. an anti-abrasion layer, or in the developer or a predevelopment treatment bath.
Patent GB-1269466-A (GB)
Title: A sound reproducing device
IPC: G11B33/06
Filed: 1970-10-22
Abstract: 1,269,466. Playback of grooved tape sound records. IDEAL TOY CORP. 22 Oct., 1970 [18 Nov., 1969], No. 50179/70. Heading G5R. A loud-speaker 60 is set in vibration by a stylus 62 as it tracks a groove on a reel-to-reel sound tape 38 which is held against the stylus 62 by a roller 45. The tape 38 and the drive spring 35 are rewound by pulling a string 37 which pulls the roller 45 away from the stylus 62 and rotates a grooved cam 44 so that a cam follower 32e moves the stylus 62 across the tape 38 for random selection of a groove for playback. The V-shaped tone arm 32 is made of a resilient plastics material and the roller 45 of metal. Each tape drum has a V-shaped notch (36d, Fig. 11, not shown) with an inwardlyprojecting lip and the end of the tape is folded to fit into the notch.
Patent GB-502569-A (GB)
Abstract: 502,569. Ticket printing and issuing machines. PAUTZE, H. Aug. 19, 1937, No. 22753. [A Specification was laid open to inspection under S@t. 91 of the Acts, Feb. 21, 1938.] [Class 106 (iii)] A ticket printing and issuing machine for railway booking- offices is provided with a lugged printing-plate which cam be used, in conjunction with a laterally adjustable transmission member controlled by a keyboard, for printing the various prices for the different categories of tickets. Recording and totalizing devices are incorporated. The printing-plate 1 is carried by a drum 3, and the circuit of the driving-motor is closed when one of the keys 9 is depressed. The key-rod 10 moves a pivoted member 8 carried by a constantly reciprocating bar 7 so as to engage and carry with it, for a distance determined by the length of recesses 11, a bar 6 to position horizontally a transmission member 4 carrying four groups of resilient lamellae 5. The member 4 is then raised so that price-adjusting lugs 2 secured to the printing-plate 1 depress selected lamellae into the path of rotating arms 21, whereby the price printing-wheel 22 is correctly positioned. A bar 13, similar to the bar 6, positions an abutment 13a horizontally when a key 9 is depressed, so as to arrest the rotation of segments 16, 16a which position the '' kind of train " printing- wheel 17 and the record printing-wheel 18. Racks 19 are then moved against stepped abutments 20a, 20d, and transfer their values on their return movement to the price-counting and totalizing mechanisms. Upward movement of the key-rods 10 lifts the price-counting mechanism 24 from the racks 19 and locks it by a lug 25. When all these movements have been effected, the drum begins to rotate and the ticket slip is printed. The lugs 2 are carried by narrow bars 2a hooked to a plate 33 between guides thereon. The tickets from a roll 28 are advanced by a plunger 26 in known manner, a cam 29 actuating a ticket counter 23.
Patent GB-1247047-A (GB)
Title: Improvements in and relating to tubular heat exchangers
IPC: F28D7/10
Filed: 1968-10-25
Abstract: 1,247,047. Tubular heat exchangers; concentric-tube elements. W. ROSENLEW & CO. A.B. 25 Oct., 1968 [27 Oct., 1967], No. 50681/68. Heading F4S. In a casing 1 of a heat exchanger are disposed concentric-tube units each consisting of an outer tube 8 extending between headers 2, 3 and an inner tube 9 communicating via inlet and outlet openings 10, 11 in wall of the outer tube 9 with the casing interior. In use a fluid to be heated is passed from header 2 through tubes 8 of the units to header 3 and is heated by steam flowing around the tubes 8 and through the inner tubes 9 of the units. The stream enters the casing through an inlet 13 and is directed by a baffle 1a towards one end of the casing where some of the steam enters the tubes 9 via openings 10 whilst the remainder flows around the tubes 1. Condensate from the steam is withdrawn at 14.
Patent GB-1216119-A (GB)
Title: Flanging thin metal cylinders
Inventor: FRANEK JOZEF TADEUSZ
IPC: B21D51/26
Filed: 1968-10-25
Abstract: 1,216,119. Flanging. METAL BOX CO. Ltd. 13 Aug., 1969 [25 Oct., 1968], No. 50883/68. Heading B3E. A method of cold-forming a laterally extending flange at the ends of a thin metal cylindrical body in which the cylinder 1 is fed by a wormtype conveyer 2 to a rotatable feed turret 3 having pockets 4 equipped with magnets 5 which engage the side of the cylinder and align it axially with circular flanging dies 6 on a carrier 18. As the carrier 18 is rotated to position C, the flanging dies are moved axially under control of cam 20 so that they enter the ends of the cylinder and rotation of the carrier continues the movement of the cylinder to position D by which time the cams 20 and 21 have caused the flanging dies and swaging rollers 11 to occupy the position where abutments 34 are in contact with faces 35 of the swaging rollers 11. While the cylinder 1 is being advanced between positions D and E the flanging dies 6 and swaging rollers 11 co-operate simultaneously to apply tensile and compressive forces to the ends of the cylinder so as to form flanges 1a during which time the flanging dies 6 rotate about six times. Between positions E and F cams 20 disengage the flanging dies 6 from the cylinder but the flanges 1a remain engaged by the swaging rollers 11 so that ironing takes place between positions F and G. At position F, G the flanged cylinder is stripped away from roller 11 and is removed by turret 8.
Patent GB-1496491-A (GB)
Title: Dihydroergopeptine derivatives
IPC: C07D457/04
Filed: 1974-11-25
Abstract: 1496491 Dihydro-ergopeptine derivatives SANDOZ Ltd 25 Nov 1974 [28 Nov 1973] 50914/74 Heading C2C Novel compounds of the Formula I wherein R is hydrogen or C 2-6  alkyl and acid addition salts thereof, may be prepared by condensing a reactive functional derivative of an acid of the Formula II with a compound of the Formula III in the form of a salt.  The intermediates II and their C 1-4  alkyl esters are prepared by alkylation of a 6-nor alkyl ester to introduce R<SP>1</SP>, optionally followed by hydrolysis of the ester. Some of these compounds II and their C 1-4  alkyl esters are claimed per se in Specification 1,496,492. Pharmaceutical compositions of the compounds I with the usual excipients show venoconstrictor activity.
Patent GB-1382797-A (GB)
Title: Nuclear reactors
IPC: G21C19/20
Filed: 1971-11-04
Abstract: 1382797 Refuelling reactors BRITISH NUCLEAR DESIGN & CONSTRUCTION Ltd 3 Nov 1972 [4 Nov 1971] 51405/71 Heading G6C  A nuclear reactor comprises a transfer machine 20 which acts to transfer fuel-elements or other components from core-discharging apparatus to a storage facility and vice versa. The machine 20 is disposed laterally of the core 12 and has a transfer member 22 movable on a pantograph mechanism 21 between or transfer position in which it transfers a component such as a full sub-assembly 32 to or from a respective gripper 18 of a charging machine 16 or 17 (which has been appropriately positioned by rotation of closure plugs 14, 15) and a datum position beneath a gripper 23 for transferring the sub-assembly 32 from or to a careusel 24 to which access may be had, via tube 29, from the exterior of the reactor. The transfer member 22 is constructed to receive a bottom spigot 33 which normally locates the sub-assembly 32 in the core 12, and provides a pad 42 to support the sub-assembly 32 at a slight inclination. The transfer member may be arranged to support two sub-assemblies 32 simultaneously (Fig. 4, not shown) to speed up the refuelling operation by reducing the member of transfer movements. The charging machines 16, 17 may be rotatable relative to the closure plug 15 and may include means to hold down core components adjacent the one being removed. In modifications (Figs. 6 and 7, not shown), the gripper 18 and the transfer member 22 are constructed to provide interference members which coact to prevent, respectively, release of a sub-assembly 32, whose spigot 33 is damaged or missing, from the gripper 18 to the transfer member 22, and movement of the transfer member 22 away from the transfer position until the gripper 18 is fully clear of a fuel subassembly. In the core 12, the sub-assemblies 32 may be disposed at a slight angle to the vertical and supported by leaning posts so as to reduce their vibration due to flow of the sodium coolant.
Patent GB-1098719-A (GB)
Title: Hair spray applicator
IPC: B65D83/14
Filed: 1966-11-17
Abstract: 1,098,719. Valves. R. C. EBERHARDT and G. B. DOUGLAS. Nov. 17, 1966, No. 51465/66. Heading F2V. [Also in Division F1] A hand - actuated valve in the discharge line 17, 40 of a hair spray applicator for attachment to a pressurized aerosol dispensing container (see Division F1) comprises flexible, conical valve members 36, 39 controlling ports 35, 38 connected to the container and a spray nozzle, respectively, members 36, 39 being moved off their seats by depressing a lever 33 against the bias of the spring shown.
Patent GB-1120795-A (GB)
Title: Timer, paraticularly for electric or gas kitchen ovens
IPC: G04C23/16
Filed: 1966-11-18
Abstract: 1,120,795. Timer for ovens. ETS. CARPANO & PONS. 18 Nov., 1966 [29 Nov., 1965], No. 51792/66. Heading A4D. [Also in Division H1] A timer for turning an appliance such as an electric or gas oven on and off comprises a clock mechanism 5-8 driven by a motor 2, a clock dial 12, an hour-setting knob 10 driven by the clock mechanism and a knob 36 for showing the duration of time between turning on and turning off the appliance. To set the timer, the hour graduation on the dial 12 corresponding to the time at which the appliance is to be turned off is aligned with a mark 13 on a face plate 4 of the timer and a mark 11 on the knob 10 is aligned with the hour graduation on the dial 12 corresponding to the time at which the timer is turned on. A mark 37 on the knob 36 is set to register the duration of time for which the appliance is to be turned on. The motor 2 rotates the knob 10 at a rate of one revolution in twelve hours and a cam 24 is also rotated at the same speed by gears 21-23. The position of engagement on the cam 24 of a tip 39 of a lever 28 is determined by the knob 36, the lever being mounted on a bracket 32, a projecting part (not shown) of which engages a helical slot 33. The cam 24 rotates until the pre-selected time for turning on the appliance is reached, whereupon the tip 39 engages a cam surface 25 of the cam 24 so that the lever 28 rotates and its other tip 39<SP>1</SP> lifts a frame 40 upwards. An arm 41 of the frame 40 in turn lifts a lever 42 upwardly so that a projection 51 engages a projection 52 on a relatively rapidly rotating gear wheel 53. The lever 42 is thus moved horizontally and held in position by the engagement of projections 54, 55. An arm 45 of the lever 42 moves a slider 47 horizontally, a tongue 48 of the slider being coupled to a gas tap, for example, to turn on the gas or to a switch to turn on a heating element. A disc 14, having a notch 15 aligned with the mark 11, isalso driven at the same speed as the knob 10, so that when the notch 15 coincides with the pre-selected time for turning off the appliance, a projection 18 of an arm 16 enters the notch 15. The arm 16 carries a contact piece (not shown) which, as a result of the subsequent horizontal displacement of the arm 16, causes a break in the current supply leads 20, 20<SP>1</SP> to the motor 2. At the same time, the tip 39 of the lever 28 moves over an edge 26 of the cam surface 25 so that the frame 40 and the slider 47 return to their initial positions thus closing the gas tap or opening the electric switch. The gas tap or electric switch may also be controlled manually by setting the mark 37 on the knob 36 between letters A and M on the face plate 4. In this position, the tip 39 only engages the smooth cylindrical surface of the cam 24 and a projection 56 on the shaft 35 of the knob 36 engages a projection 57 to move the slider 47.
Patent GB-1477538-A (GB)
Title: Glass optical fibres
IPC: C03C13/04
Filed: 1974-11-29
Abstract: 1477538 Optical fibre CARL-ZEISSSTIFTUNG [trading as JENAER GLASWERK SCHOTT & GEN] 29 Nov 1974 [30 Nov 1973] 51837/74 Heading ClM An optical fibre having an optical loss below 150 dB/km is drawn from a glass which consists essentially of the following constituents, expressed in mole per cent (approximate weight percentages shown in brackets): the mole ratio SiO 2  : PbO being 2À5-4À0 : 1 ratio 0À67-1À08 : 1), the alkali metal oxide(s) being K 2 O and/or Na 2 O with or without up to 5 mol per cent Cs 2 O; and the glass optionally including one or more refining agents. The glass preferably comprises K 2 O and Cs 2 O, with little or no Na 2 O being present, and preferably has an H 2 O content less than 10 ppm (by weight). Up to 0À1 mole per cent of As 2 O 3  may be included as the refining agent. In the examples the glasses have refractive indexes (N D ) of 1À617-1À649, Tg 439-484 C., and softening points of 604-674 C.
Patent GB-1451907-A (GB)
Title: Digital frequency meter
IPC: G01R23/10
Filed: 1973-11-13
Abstract: 1451907 Displays WANDEL U GOLTERMANN 13 Nov 1973 [24 Nov 1972] 52636/73 Heading G4H [Also in Division H3] A digital frequency meter which operates by counting 13, pulses whose frequency is to be measured for a predetermined time interval and transmitting the resulting count to a digital indicator 15 via an intermediate store 14, is provided with hysteresis between the state of the counter at the end of each interval and the state of the indicator to reduce jitter. In Fig. 1, a comparator 19 compares each new count with that in store 14 and up-dates the store only if the difference is greater than 1. In another arrangement, Fig. 2 (not shown) the least significant stages (210) of the counter are not read out, the frequency applied to the counter being higher than the frequency being measured by a ratio equivalent to the division factor of the unread stages. The unread stages may be two binary flip-flops which may be set to their 1 or 3 state if at the end of the previous count they were in their 3 or 0 stage, Fig. 3 (not shown).
Patent GB-1204386-A (GB)
Title: A method for making multi-layer belts, more particularly for spinning and twisting machine drives, and belts so manufactured
Inventor: ZENERE LIVIO
IPC: F16G1/14
Filed: 1967-11-20
Abstract: 1,204,386. Laminated drive belt. L. ZENERE. 20 Nov., 1967 [21 Nov., 1966], No. 52698/67. Heading B5N. [Also in Division F2] A method of making multi-layer drive belts, e.g. for driving spinning and twisting spindles, comprises making a composite material by bonding a layer 4 of polyamide resin to a layer 5 of double face fabric, e.g. by pressing, one face 5<SP>1</SP> of the fabric being formed of synthetic polymer fibres, e.g. of nylon, integrally bondable to the layer of polyamide resin, the other face 511 of the fabric being formed of yarns of cotton or equivalent thermally insulating fibres, cutting the composite material into parallel strips 10 and closing each strip to form a loop with the said other face of the fabric facing the inner space of the loop. In the embodiment shown, a polyamide fabric 3 is bonded to the free surface of the layer of polyamide resin.
Patent GB-1195100-A (GB)
Title: Writing Instrument.
Inventor: BROSS H
IPC: B43K24/08
Filed: 1967-11-21
Abstract: 1,195,100. Retractable ball-point pens. H. BROSS. 21 Nov., 1967 [23 Nov., 1966], No. 52938/67. Heading B6P. In a retractable ball-point pen having a retracting mechanism similar to that of Specification 1,099,569, an additional resilient element is provided to assist in bending the rocker arm 5 back towards its normal untensioned position. In Fig. 2, the additional resilient element comprises a leaf-type spring 4 moulded integrally from plastics material between the push-button 1 and the rocker arm 5. In (Fig. 12), such an element comprises a torsionrod (204) positioned parallel to the longitudinal axis of the pen. In (Fig. 13) the toothed part or control cam (309) and an inclined surface (306), against which the rear end of the ball point cartridge is pressed by a retracting spring (308), are provided on the same free end of the rocker arm (305). The cartridge resiliently bearing against the inclined surface (306) assists in bending the rocker arm back to its normal position. In (Fig. 14), the guide releasing and stop edges which are engaged by the control cam on the rocker arm are provided on a semi-cylindrical extension (425) at the rear end of the pen casing.
Patent GB-1105379-A (GB)
Title: Improvements in vehicle ejection seats
IPC: B64D25/10
Filed: 1966-11-25
Abstract: 1,105,379. Ejection seat with directable rocket motor. J. MARTIN. 13 Dec., 1966 [25 Nov., 1966], No. 52986/66. Heading B7G. An ejection system for ejecting a seat 3 and occupant combination from an aircraft comprises an ejection gun 2 to start ejection in a given direction, a rocket motor pack 4 pivoted to the seat at 5 and angularly adjustable by means (e.g. a variable length link 2, (23), Fig. 4 (not shown), to direct the rocket thrust through the e.g. of the seat and occupant. The variable length link may comprise either a nut 28 rotatable on a screwed rod 22 which in turn acts as a rack for a pinion 33 integral with a calibrated drum (32), Fig. 3 (not shown), or a link (40), Fig. 6 (not shown), slidable within a tube (41) both having holes (43, 45) through which a pin (44), Fig. 5 (not shown), may be inserted to fix the link in the tube. The rocket motor pack may comprise six canisters 10 containing charges of propellant and a firing means 15, 16 interconnected by a hollow spine 7 with four stub nozzles 12.
Patent GB-1196785-A (GB)
Title: Improvements in Lasers.
Inventor: WILLS MAURICE STAFFORD
IPC: H01S3/03
Filed: 1967-11-22
Abstract: 1,196,785. Lasers. NATIONAL RESEARCH DEVELOPMENT CORP. 18 Nov., 1968 [22 Nov., 1967], No. 53031/67. Heading H1C. A gaseous active medium is contained in the annular space between two concentric silica tubes 1, 2, and r.f. pumping energy is applied by a plurality of spaced tubular copper electrodes 11, 12 located both within the inner tube 2 and externally of the outer tube 1. The outer electrodes 12 are positioned so as to overlap the spaces between the inner electrodes 11. The ends of the tubes are sealed by mirrors 3, 4 and the inner tube 2 is held centrally by vacuum seals 7, 8. Both tubes are liquid cooled the inner through a tube 9 passing through a hole in mirror 3 and the outer by a jacket 10. It is stated that, compared with a simple tubular structure, the concentric arrangement of tubes 1, 2 enables a greater volume of gas to be contained in the discharge space without increasing the ratio of discharge space wall area to volume of enclosed gas. Reference has been directed by the Comptroller to Specification 1,152,706.
Patent GB-1392148-A (GB)
Title: Anti-blocking valve apparatus
IPC: F16K7/06
Filed: 1973-11-15
Abstract: 1392148 Valves INDUSTRIAL CONTRACTING OF FAIRMONT Inc 15 Nov 1973 [9 Feb 1973] 53142/73 Heading F2V A valve apparatus comprising a Y-pipe fitting having a main pipe section and a branch pipe section, each fitted with a hose 19, 20 and two screw-actuated pinch members 30, 31<SP>1</SP>, is provided with a rotatable disc 38 with a radial slot 41 allowing access to one of the screws of the pinch members which, upon opening, locks the disc such that the other pinch member cannot be opened.