baber/WOPTO huggingface dataset:
Patent GB-1185125-A (GB)
Title: Infinitely Variable Cone Pulley Gear
IPC: F16H9/16
Filed: 1968-07-24
Abstract: 1,185,125. Expanding-wheel gear. REIMERS GETRIEBE AG. 24 July, 1968 [25 July, 1967], No. 35363/68. Heading F2D. In an infinitely-variable expanding core pulley gear in which driving and driven pairs of pulley flanges 3, 4 and 5, 6 are relatively axially movable for ratio change by the usual connecting levers 7, 8 centrally fulcrumed at 9, 10 on nuts, axially adjustable on a screwed centre spindle 34 for "V" belt tension adjustment, and rocked by manual rotation of an oppositely pitched screw threaded spindle 13 carrying nuts 14, 15 engaging the ends of the levers 7, 8, and in which the driving and/or driven pulley flanges are additionally urged together by torque responsive camming balls 25 arranged in "V" notches between the movable pulley flanges 4, 6 and reaction discs 16, 17 to adjust the belt grip (i.e. avoid slip) in response to transmitted torque, the reaction discs are connected via thrust bearings 36, 37 and support rings 56, 57 to a balance arm 35 fulcrumed at or approximately about its centre 38 such that the reaction forces occurring at the discs 16, 17 are suitably balanced to ensure smooth ratio changes to be effected and to avoid ratio speed oscillation especially in the vicinity of the 1:1 ratio condition. As shown, the balance arm 35 is fulcrumed at 38 on the centre spindle 34, whilst in Fig. 3 (not shown) the arm 35 floats on a movable fulcrum (41) the position of which is adjustable as a function of the gear ratio, the fulcrum comprising rollers (40) engaging a curved bearing surface (39) on the arm 35 and a flat surface (44) on the gear housing, the rollers being carried by a nut (41) on a screwed spindle (42) connected by bevel gears (43) to the ratio adjusting spindle 13. In Fig. 4 (not shown), only the driving pulley flange 4 is provided with a torque responsive cam ball device, and the ratio control lever 8 formed as a bell-crank lever having one arm extending from the ratio adjusting spindle 13 only to its centre fulcrum 10 on the belt tensioning spindle 34, and its other arm extending axially along the tensioning spindle 34 to carry a fulcrum pin (51) on which the balance arm 35 is floatably fulcrumed on a curved bearing surface as in Fig. 3, one end of the balance arm being connected as before to the cam ball reaction disc support ring 56 whilst the other end is directly connected via the support ring 57 and a thrust bearing 33 to the movable driven pulley flange 6. In this embodiment interchangeability of the roles of the driving and driven shaft, readily available in the Figs. 2 and 3 embodiment, is not possible, only the flanges 3, 4 on the shaft 1 serving as the driving pulley.
Patent GB-1056762-A (GB)
Title: Sample collector
IPC: B25H3/00
Filed: 1963-09-06
Abstract: 1,056,762. Sample collectors. LKB-PRODUKTER A.B. Sept. 6, 1963 [Sept. 12, 1962], No. 35377/63. Heading B1X. A sample collector comprises a rectangular base (1) having a plurality of equal rectangular holders (2) arranged in a recess therein in two rows so as to occupy said recess apart from a space or two spaces equal to said holders. The holders are adapted to receive a plurality of receptacles such as test tubes (3) and means are provided to move the end holder of one or each row to the other row in a step-by-step movement (8,9) and to move all holders of each row in the longitudinal direction of the row (10,11). The numerals in brackets refer to the illustrated embodiment which has two unoccupied spaces for holders and in which accordingly two positions 6,7 are provided in which samples may be supplied from a stationary filling nozzle to the receptacles.
Patent GB-786391-A (GB)
Title: Improvements in or relating to electric protective devices particularly for use withseries capacitors
Inventor: MARBURY RALPH EUGENE
IPC: H01G2/14
Filed: 1955-12-09
Abstract: 786,391. Temperature-responsive actuating-elements. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Dec. 9, 1955, No. 35405/55. Drawings to Specification. Class 64(2) [Also in Group XXXVII] In an electric protective device in which a fusible element is softened by heat produced by current flowing through it and is pierced by a spring-biased element to cause contacts to close (see Group XXXVII), the element is a replaceable disc of thermoplastic material, e.g. polystyrene, containing finely-divided metal powder, e.g. aluminium powder.
Patent GB-772136-A (GB)
Title: Shock-absorbing device
IPC: F16F7/00
Filed: 1955-12-09
Abstract: 772,136. Shock absorbers. SLUYTER, N. Dec. 9, 1955, No. 35460/55. Class 108(3). In a shock absorbing device in which a rubber mass 19, Fig. 2, rotatable about an axis 17 is enclosed between metal confining elements 161, 20, and constitutes a segment attached to the circumference of a member 16 rotatable about a fulcrum 17, and in which an eccentric surface 19a is provided adapted to co-operate with a second rotary member 26, the rubber mass 19 is intimately bonded with the surfaces of the metal elements 16<SP>1</SP>, 20, and the unit of rigid confining elements and rubber mass thereby obtained, gradually grows thicker circumferentially. As shown in Fig. 2, the element 16<SP>1</SP> is part of the member 16. The gradually increasing circumferential thickness is either obtained by change in thickness of the rubber mass itself (as shown), or by change in thickness of the confining elements 16<SP>1</SP>, 20. The member 26 comprises a roller carried by a support 18 rotatably mounted at 17 relative to the member 16 which is also in the form of a roller. The element 20 is of U-shaped cross section and at one end 27, has its side portions bent upwardly in to the shape of the periphery of the roller 26. The end of the element 20 is secured by a bolt 24 against a domed washer 23 so that the element 20 is restrained against tangential movement relative to the roller 16. This, however, permits the element 20 to rock about the bolt 24 when the support 18 is moved clockwise relatively to the roller 16 to compress the rubber mass 19. In the construction shown in Fig. 1, both rotary members 2, 3, carry a respective rubber mass 7 having associated rigid confining elements 6, 6. Each member 2, 3, is rotatably mounted on a common support 1. Load is applied at 14 through links 11, 13, pivotally connected together at 14 and pivotally connected respectively at 10, 12, to the members 2, 3.
Patent GB-1510077-A (GB)
Title: Flange coupling
IPC: F16D1/033
Filed: 1976-08-26
Abstract: 1510077 Shaft couplings; bolting ERIKSBERGS MEK VERKSTADS AB 26 Aug 1976 [27 Aug 1975] 35512/76 Headings F2U and F2H A flange coupling for a ship's propeller shaft comprises at least two accurately-machined bores 6 with expansion shell bolts 3a received therein for transmitting torque, and other bores (11, Fig. 3, not shown) with bolts (3b) received therein for transferring axial forces.
Patent GB-1444085-A (GB)
Title: Coin-freed gaming or amusement machine
IPC: G07F17/34
Filed: 1972-07-29
Abstract: 1444085 Gaming machines A SHAW 24 Oct 1973 [29 July 1972] 35559/72 Heading G4V A coin-freed gaming machine comprises a random selection device by which at least one symbol is selected from a plurality of symbols and a pay-out mechanism operable in response to a winning selection having been made and further includes or is in association with a further symbol selection devices operable after a winning selection by the first device and effective in the event of a winning selection by the further device to initiate a further pay-out. In the embodiment described the random selection device comprises a "fruit-machine" reel assembly, and the further selection device comprises a display screen 50 bearing fifteen symbols one of which may be illuminated at any one time by a respective lamp 49. A winning further selection occurs when the selected symbol is one which occurred in the winning line on the "fruitmachine". When a winning selection is made by the "fruit-machine" one or more switches 12 are closed to energize a relay 14 and hence energize motor 16 of pay-out selection switch 15, motor 41 of the further selection switch 40 and indicator lamp 32 and condition a push-button 30 for operation by the player to stop, after a predetermined time delay, the motor 41. The switch 15 includes a plurality of cam switches 18 connected to switches 12 and pay-out relays 22 and effective during one revolution of motor 16 to pay out a predetermined number of coins of an appropriate denomination. The switch 40 comprises two rotary switches 43, 51; 44, 52 the stationary contacts of the first being connected to respective lamps 49 and the stationary contacts of the second to particular ones of switches 12. If on stopping of motor 41 wiper 52 is connected to a closed switch 12 the motor 16 is re-energized and a further pay-out identical to the first is made. Alternatively a further payout mechanism may be associated with the further selection device. The further selection device may be reactuated if it makes a winning selection, with the odds against further wins being progressively reduced.
Patent GB-1236151-A (GB)
Title: Improvements in forging manipulators and charging machines
IPC: B21J13/10
Filed: 1969-07-15
Abstract: 1,236,151. Forging manipulators. DANGO & DIENENTHAL K.G. 15 July, 1969 [25 July, 1968],No. 35626/69. Addition to 1,171,557. Heading B3H. [Also in Divisions F3-F4] A forging manipulator has its peel 5 suspended by four piston-cylinder devices 9, 18 pivoted to the manipulator frame at 7, 17 and to the peel and a pair of rigid connecting levers extending along each side of the peel. The piston rods 6 of the rear pair of devices are directly pivoted to the peel 5, the levers and the cylinders 9 being pivoted about a common axis 7. The front end of the peel is pivoted to a cross-bar (15), Fig. 2 (not shown), between the levers (12) (13). The devices are hydraulic and interconnected for parallel movement of the peel. In an alternative embodiment the levers 31, Fig. 3, are each double armed with the pivot bearings between the arms. The rear devices are pivoted to the arms at 25 a short distance from the axis 33 of the levers. The front end of the levers are joined to the peel 21 by a pair of tension rods 34. A damping piston cylinder device 44 may be provided at each side of the peel.
Patent GB-785169-A (GB)
Title: Redox type polymerization
IPC: C08F36/04
Filed: 1955-12-13
Abstract: Low temperature polymerization of a conjugated diolefin containing from four to twelve carbon atoms by a redox type reaction is carried out using diisopropylbenzene di-hydroperoxide as the oxidizing agent. Specified diolefins are butadiene, pentadiene, hexadiene and dodecadiene which may be polymerized alone or with a copolymerizable compound containing the linkage CH2 = C<, e.g. acrylonitrile and styrene.  The reaction may take place in aqueous emulsion, preferably at not above 20 DEG  C., the preferred amount of peroxide being 0.01 to 0.50 parts per 100 of polymerizable starting material.  Such additions as emulsifying agents, e.g. sodium fatty acid soap, reaction modifiers, e.g. tertiary mercaptans, an iron, cobalt, nickel, manganese or copper compound as an oxidation catalyst and a sequestering agent, e.g. ethylenediaminetetraacetic acid, its sodium salts, tripolyphosphates, citrates and potassium pyrophosphate may also be present.
Patent GB-1096565-A (GB)
Title: Two-vane voltage compensated flasher
Inventor: BLEIWEISS ARTHUR FAUST
IPC: H01H61/06
Filed: 1965-08-20
Abstract: 1,096,565. Thermal switches. LEHIGH VALLEY INDUSTRIES Inc. Aug. 20, 1965, No. 35820/65. Heading H2B. [Also in Division G4] A two-vane voltage-compensated shunt-type thermomotive " flasher " has a main stressed snap-acting vane 50, with a thermally expansible pull-ribbon 51 heated by a resistance 55, actuating the load contacts 21, 22, cyclically at normal voltages, and controlling the circuit through the resistance 55 and an auxiliary stressed snap-acting vane 40, with a thermallyexpansible pull-ribbon 41 heated by a resistance 45, which opens normally closed contacts 23, 24 at above normal voltages to put a resistor 35 in series with heating resistance 55 so that pull-ribbon 51 will heat less rapidly (see also Fig. 5 for circuit diagram). The vanes 50, 40, with thermally expansible pull-ribbons 51, 41, are constructed as in Specification 761,713.
Patent GB-1222933-A (GB)
Title: Separators
IPC: G01N1/22
Filed: 1969-07-17
Abstract: 1,222,933. Centrifugal separator. SIEMENS A.G. 17 July, 1969 [18 July, 1968], No. 36168/ 69. Heading B2P. In a helical-flow vortex separator for removing dust particles from a gas, the crude gas is fed into one end of a vortex chamber 1 through an inlet tube 2 and relatively pure gas is withdrawn from the opposite end of the chamber through an outlet tube 6 from the outer region of which a portion of the relatively pure gas is removed through a duct 9 and introduced as auxiliary gas by means of a blower 10 and a duct 11 into the annular gap 7 between the tube 6 and the chamber 1, guide vanes 8 being provided in the gap to recirculate the auxiliary gas in the chamber 1 in the form of an outer potential flow which combines with the crude gas to create an inner rotary flow whereby the particles are separated from the crude gas and discharged with a branch of the potential flow via the annular gap 15 between the inlet tube 2 and the chamber 1. The separator may be used for the extraction of a gas sample from a waste gas channel 4. The annular gap 15 is in communication with a receptacle 16 which opens into the channel 4 by way of an aperture 17. Vanes 3 may be provided in the inlet tube 2 to impart a spin to the crude gas. A clean gas discharge tube 13 is coaxially mounted in the outlet tube 6 and vanes 14 may be provided upstream of the tube 13 to provide further spin to the gas to assist in the separation of any particles remaining the outflowing gas.
Patent GB-176563-A (GB)
Title: Improvements in steering devices for vehicle wheels
IPC: B62D7/18
Filed: 1920-12-29
Abstract: 176,563. Rawlinson, S. Dec. 29, 1920. Disc wheels.-A steering- wheel comprises a disc 45 bolted to the hub and secured to the rim by bolts 48 and locking clips 49.
Patent GB-1394592-A (GB)
Title: Method of forming image dyes in photographic materials
IPC: G03C1/825
Filed: 1972-08-03
Abstract: 1394592 Producing indophenoxide dye images EASTMAN KODAK CO 3 Aug 1972 [6 Aug 1971] 36372/72 Heading G2C and G2X An indophenoxide dye image is formed in a photographic material by reacting in the material a colour coupler with an oxidized colour developing agent which is predominantly a p-aminophenol of the formula:- H 2 N-Ar-OH where Ar is 6-20 C arylene which may be substituted and with an onium compound. The colour coupler may be reacted with the oxidized p-animophenol in the presence of the onium compound or the product of the reaction between the colour coupler and oxidized p-aminophenol may be subsequently reacted with the onium compound. The p-aminophenol may be oxidized during photographic development of an imagewise exposed photographic silver halide emulsion layer. The colour coupler may be present in the silver halide emulsion layer or a layer adjacent thereto. The onium compound may be a water-soluble or water-insoluble quaternary ammonium compound. The onium compound and/or the p-aminophenol developing agent may each be incorporated in the silver halide emulsion layer or a layer adjacent thereto. The silver halide emulsion may be a fogged direct-positive silver halide emulsion. The dyes formed do not wash out or migrate as readily as other dyes e.g. an indophenol dye mordanted on a polyvinyl pyridine. The formation of photographic indophenoxide dye diffusion images is described and claimed in Specification 1394593.
Patent GB-844950-A (GB)
Title: Mixing nozzle
Inventor: ARMSTRONG JAMES E
IPC: B01F25/46
Filed: 1957-04-25
Abstract: 844,950. Spray-producers. GRACE & CO., W. R. April 25, 1957, No. 36470/59. Divided out of 844,950. Class 69 (3). A mixing nozzle 10 has a cylindrical feed channel 12 and a mixing zone 13 separated by a vaned member 11 so that fluid flowing into the zone from the channel is whirled by the vanes 15. A cylindrical spin chamber 18 within the vaned member, and provided with an outlet orifice 19 in a removable plug 20, is fed tangentially with a second fluid via a restricted passageway 22 so that the two whirling fluid streams mix in the zone 13 before leaving the nozzle aperture 32. Formulae are given relating the total pressures of the fluids leaving the orifices 19 and 32 with the densities of the fluid streams, their flow rates, and various dimensions of the mixing nozzle.
Patent GB-1249937-A (GB)
Title: An electric circuit arrangement including a differential amplifier
IPC: H03F3/393
Filed: 1969-07-21
Abstract: 1,249,937. Transistor amplifying circuits. MESSERSCHMITT - BOLKOW - BLOHM G.m.b.H. 21 July, 1969 [20 July, 1968], No. 36493/69. Heading H3T. In an arrangement comprising a differential amplifier with an input signal applied to one input terminal and the other input terminal connected to a point of reference potential, the amplifier has a feedback path, connected between the output terminal and the one input terminal, which includes a switch which is cyclically operated to switch the resistance of the feedback path between a finite value and substantially zero. An embodiment comprises a summing amplifier having inputs U E1 , U #2  applied over resistors R 1 , R 2  respectively and the feedback path comprises a resistor R 3  shunted by the source-drain path of a field-effect transistor 2 which is switched between saturation and cut-off by a signal applied to its gate.
Patent GB-1270005-A (GB)
Title: Apparatus for determining the relative position of two objects
Inventor: BURKHARDT HORST
IPC: G01D5/347
Filed: 1969-07-21
Abstract: 1,270,005. Photo-electric position determining. DR. JOHANNES HEIDENHAIN. July 21, 1969 [July 20, 1968; Aug. 23, 1968], No. 36594/68. Heading G1A. In an arrangement for determining the position of one object relative to another in which one of the objects is provided with at least one line mark an enlarged image of which is formed by an optical system and detected by an automatic line detector device, the automatic line detector device has its line seeking element directly connected mechanically to an indicator scale. The automatic device may comprise a microscope having a vibrating wire and be movable in the field of the optical system to lock on to the mark by a servomotor. The scale may be read by a further photo-electric system which may provide a digital output. The apparatus is described in respect of an arrangement for subdividing the interval between two graduations of a scale, for the testing of lenses, and for effecting by a programme small positional adjustments of for example a machine tool. Mechanical supporting and guiding arrangements are described.
Patent GB-912311-A (GB)
Title: Improvements in or relating to stock refiners
IPC: D21D1/38
Filed: 1960-10-25
Abstract: 912,311. Stock refiners. BELOIT IRON WORKS. Oct. 25, 1960 [Nov. 16, 1959], No. 36623/60. Class 96. In a paper stock refiner, a substantially cylindrical housing 40 is provided with a stock inlet 45 and outlet 46 and encloses a rotor 48 carrying a plurality of outwardly projecting ribs 51 disposed at an angle both to its axis and to a plurality of inwardly projecting ribs 58 located on a series of circumferentially-spaced stator segments 55 positioned between the housing and the rotor, and which are uniformly adjustable in a radial direction to vary the gap between the stator and rotor ribs respectively, by means of axially aligned, variable fluid pressure tubes 68, e.g. composed of rubber, located in channels 66, 67. The tubes 68 may have a common manifold and fluid-pressure flushing means (not shown) may be provided to remove stock fibres lodged between the housing 40 and the segments 55. Both stator and rotor ribs may conform to a herringbone pattern.
Patent GB-1482954-A (GB)
Title: Electronic device
IPC: H01L49/00
Filed: 1974-08-20
Abstract: 1482954 Solid state electrical devices MASSACHUSETTS INSTITUTE OF TECHNOLOGY 20 Aug 1974 [20 Aug 1973 11 June 1974] 36645/74 Heading H1K [Also in Division H3] In an electronic device comprising, on a substrate 120, Fig. 1a, first and second metal layers 124, 128 mutually separated at an area of overlap by a dielectric layer 126 to form a junction across which quantum mechanical tunnelling can occur thereby providing a non-linear I-V characteristic, the area of the junction is at most of the order of 1 micron<SP>2</SP> and the thickness of the dielectric layer is less than about 10A. The very low junction capacitance permits operation at frequencies of the order of 10<SP>12</SP> Hz and higher. One or both of the metals may be superconducting, but in the preferred embodiments selection is made from one or more of W, Cu, Ni, Al and Cr, the dielectric layer being formed by deposition or by oxidation of the first metal layer 124. Reference is made to doping of the dielectric layer with H 2 O D 2 O or methyl alcohol. Fig. 3 illustrates a triode embodiment including three metal layers 14, 20, 26 adjacent pairs of which are separated by respective dielectric layers 16, 22. The central metal layer 20 may be unconnected to any external terminal, in which case the device functions as a negative resistance diode. Numerous applications are described, including oscillators, radiation sources, radiation detectors including imaging devices and solar arrays, parametric amplifiers, multi-vibrators, frequency subdividers and mixers and holographic imaging devices (see Division H3).
Patent GB-1400955-A (GB)
Title: Process for the preparation of a granular activated carbons
IPC: C01B31/12
Filed: 1973-08-02
Abstract: 1400955 Active carbon AKZO NV 2 Aug 1973 [3 Aug 1972] 36704/73 Heading C1A Granular active carbon is obtained by comminuting natural or synthetic rubber objects, reacting the particles obtained with sulphur or a sulphur containing compound, i.e. H 2 SO 4 , SO 3 , ClSO 4 OH, SO 2 Cl 2 , in an amount of 0À05 to 12 parts by weight of rubber and then pyrolysing the so treated rubber at a temp. in the range 350 to 1000 C. The rubber may be a styrene butadiene rubber or a polybutadiene rubber. The reaction with the sulphur material may be effected at a temperature in the range -20 to 300 C., and may be in the presence of an inert solvent or diluent. The rubber particles preferably have a size of 2 to 4 mm. The carbon obtained may be further activated by heating in a stream of activating gas, e.g. steam or air.
Patent GB-1526804-A (GB)
Title: Adjustable steam throttles
IPC: F22G5/12
Filed: 1975-09-05
Abstract: 1526804 Valves WELLAND & TUXHORN 5 Sept 1975 [10 Sept 1974] 36733/75 Heading F2V [Also in Division F4]  In an adjustable throttle for steam comprising a central perforated cylinder 9 and an associated movable piston valve member 5, the cylinder is surrounded by a number of tubes 10 provided with slots 15 for distributing cooling water into the steam flow. In use, steam entering at 3 passes through the bores 8 uncovered by the valve member 5, through the spaces between the tubes 10 and mixes with cooling water leaving the slots 15. The tubes are of oval cross-section with their major axes lying radially so that the spaces between the tubes define Laval nozzles which create suction and swirl and thereby assist the water inflow and its subsequent mixing with the steam. Some of the tubes 10 may have the slots 15 located at different axial positions as shown.