baber/WOPTO huggingface dataset:
Patent GB-1153937-A (GB)
Title: Method of producing Vinyl Chloride Resins
IPC: C08F255/02
Filed: 1967-10-06
Abstract: 1,153,937. Grafting vinyl chloride on to elastomer mixtures. JAPANESE GEON CO. Ltd. 6 Oct., 1967 [14 Oct., 19661, No. 45874/67. Heading C3G. A vinyl chloride resin is produced by graft polymerizing to a mixture of (1) at least one elastomer containing 10 to 80% by weight of ethylene and selected from ethylene-vinyl ester copolymers, ethylene-acrylic acid ester copolymers and ethylene-vinyl ester-acrylic acid ester terpolymers and (2) at least one elastomer selected from ethylene-propylene copolymers, ethylene-propylene-non-conjugated diolefin terpolymers, butyl rubber and chlorinated butyl rubber, vinyl chloride or a mixture of vinyl chloride with up to 20% by weight based on the vinyl chloride content of one or more comonomers, said first and second-named elastomers and said monomer or monomers being present in the graft polymer in amounts, on a weight basis, of 1 to 15%, 2 to 15% and 97 to 70%, respectively. The polymerization is carried out in solution, suspension or emulsion, preferably by dissolving the elastomers in the monomer or monomers and then dispersing the solution in an aqueous medium. In the examples, vinyl chloride, alone or together with 2-ethylhexyl vinyl ether, is grafted on to a mixture of ethylenevinyl acetate and ethylene-propylene copolymers and vinyl chloride alone is grafted on to a mixture of ethylene-ethyl acrylate and ethylenepropylene copolymers, ethylene-vinyl acetate copolymer and butyl rubber or chlorinated butyl rubber, or ethylene-vinyl acetate copolymer and ethylene-propylene-dicyclopentadiene terpolymer. The graft polymers produced are compounded with dibutyl tin maleate and butyl stearate.
Patent GB-948843-A (GB)
Title: Improvements in or relating to tracks for endless track vehicles
IPC: B62D55/24
Filed: 1961-12-21
Abstract: 948,843. Endless tracks for vehicles. SKELLEFTEA GUMMIFABRIKS A.B. Dec. 21, 1961 [Dec. 21, 1960; March 24, 1961], No. 45930/61. Heading B7H. An endless track for a vehicle comprises transverse bars 6 and longitudinal reinforcing wires 7 encased in an elastomeric material, e.g. rubber, which is formed with transverse external shoulders or ribs 5 and inwardly directed projections 12 which may have stepped portions 14 or concave surfaces for engagement with the treads of tyres of different sizes. The bars may be in two portions 6a and 6b riveted together, clamping the reinforcing wires therebetween or the bars and the wires may be held together by the rubber. In the longitudinal direction, the track comprises three parts, 1a 1b and 1c between which and the transverse parts are spaces 10. At the ends of the track, the wires 7 are looped around sleeves 8 which are bolted to complementary lug members 17 and 18 pivoted together by bolts 19. In a modification, Fig. 7, the wires 7 are connected to anchoring heads retained in cast-in jointing plates 20, which may be made in one piece or in two parts riveted together, holes 24 being provided for bolting to the connection members 16. The track may be used with a tractor having wheels 2, 3, Fig. 1, on each side, or on a tractor wherein the track is driven by a rubber cog-wheel.
Patent GB-1412272-A (GB)
Title: Method of correcting for amount of exposure in photographic  printing
IPC: G01J1/42
Filed: 1972-10-05
Abstract: 1412272 Photographic printers KONISHIROKU PHOTO INDUSTRY CO Ltd 5 Oct 1972 [7 Oct 1971] 45982/72 Heading G2A The amount of exposure for printing a negative 23 is determined by measuring the average transmission density of the negative and correcting it according to the measured values of the means of the maximum and minimum densities and the density of a central zone of the negative. As shown light from the negative 23 is directed by optical fibres 27 to sets of photo-detectors 28, 28', 28" for measuring blue, green and red light respectively. As shown, the blue photo-detectors 28 are connected to an adder 30 and log converter 31 for producing an average blue transmission density signal; and to max. and min. detectors 32, 34, log converters 33, 35 and an adder 36 for producing a mean blue density signal. The central photo-detectors 28 are connected to a log converter 37 for producing a central zone blue density signal. Corresponding signals are produced for the other colours and elements 38, 38 , 38", 39, 39', 39", 40, 41 and 42 process the signals to grade the negative and produce an appropriate shutter control signal. This signal may be determined and used during exposure or determined before exposure, and memorized for subsequent use. A half mirror 25 directs the negative image on to a viewer or film alternatively locatable at 26.
Patent GB-1093410-A (GB)
Title: High voltage electric circuit breaker with means for precisely coordinating the operation of widely spaced components
IPC: H01H33/16
Filed: 1966-10-14
Abstract: 1,093,410. High-voltage switches. GENERAL ELECTRIC CO. Oct. 14, 1966 [Dec. 30, 1965], No. 46115/66. Heading H2B. In a high-voltage switch comprising widelyspaced moving contact assemblies 34 and 34a coupled for conjoint operation, loss of synchronism due to thermal expansion of a linking bar 60, or to movements of a concrete base pad 19, is prevented by mounting the pivots 63 of bell cranks 62 on a common base member 80 which is fixed relative to the right-hand pad 19 but slidable with respect to the left-hand pad 19. Member 80 has the same coefficient of expansion as link 60 so that the angular positions of the bell cranks 62 remain substantially fixed with respect to each other despite thermal expansion or contraction of link 60 or relative movement of pads 19. Bell cranks 62 are respectively connected to moving contact arms 38 by insulating rods 46 and universal joints 69 and springs 44 tend to urge adjustable contacts 37 into engagement with fixed contacts 36 carried on insulators 39 within metal tanks 20, but a latch 50 engages a roller 72 on an extension of the right-hand bell crank 62 to restrain springs 44. Energization of a solenoid 78 pivots the latch 50 against the action of a spring 75 and the contacts 37 then connect resistors (32, Fig. 2, not shown) across open main contacts (22, 24) also within the tank 20, but not shown in Fig. 1. A similar compensating arrangement for three spaced contact assemblies (Fig. 6, not shown) is also disclosed.
Patent GB-1325465-A (GB)
Title: Reel and band assembly and method of producing same
IPC: B26B21/26
Filed: 1970-09-29
Abstract: 1325465 Tape reels PHILIP MORRIS Inc 29 Sept 1970 [29 Sept 1969] 46233/70 Heading B8M [Also in Division B3] A wind-on continuous razor blade is attached to a pay-out or take-up reel 10 of moulded plastics material by forcing an end portion of the band into a peripheral slot 21 in the reel using a locking member 15 shaped and dimensioned to clamp the band elastically in the slot. The member 15 is initially connected integrally with a flange 11 of the reel by webs 16 which are severed by movement of the member into the slot. Shoulder portions 25 of the slot snap around a bulbous portion of the member 15 and retaining tongues 26a may be punched out of the band. In an alternative embodiment (Figs. 6 and 7, not shown), an upper reel portion (61) is of reduced cross-section for mounting in a bearing support of the razor, mounting of this reel portion in the razor preventing the slot from opening to release the band without the need for the retaining shoulders 25.
Patent GB-993363-A (GB)
Title: Improvements in or relating to automatic aperture control systems for cameras
Inventor: JOTCHAM JOHN MICHAEL
IPC: G03B7/085
Filed: 1962-12-10
Abstract: 993,363. Automatic control of camera aperture. S. SMITH & SONS (ENGLAND) Ltd. Dec. 6, 1963 [Dec.10, 1962], No. 46477/62. Headings G2A and G3R. In a system for automatically controlling the aperture of a camera, a proportion of the light passing through the aperture during operation of the camera continuously influences a photo-cell the electrical output of which controls mechanical means adjusting the aperture. In Fig. 1 a proportion of the light passing through the zoom lens 1 of a cine camera to a film 26 is reflected by a partially silvered mirror 3 on to a photo-conductive cell 4 so that variations in light intensity from a desired value determined by the setting of an adjustable neutral density filter 9 are effective, through a temperature-compensated transistor amplifier 5 and moving coil actuator 25, to adjust an aperture 2 in such sense as to restore the light intensity to the desired value. Moving coil 25 rotates an L-shaped lever 8 about a pivot 37 so that, as shown in Fig. 2, a pin 31, near one extremity of lever 8, moves aperture jaws 27, 28 in opposite directions about their pivots 29, 30. Photo-conductive cell 4 may alternatively be arranged to vary the amplitude of oscillation of a transistor oscillator the output of which is rectified to energize moving coil 25. To increase the aperture for slow motion effects an additional filter is interposed between mirror 3 and cell 4. A further filter may be temporarily interposed between lens 1 and mirror 3 to open the aperture without increasing light intensity prior to the introduction of the slow motion filter. Use of a photo voltaic cell or phototransistor is referred to, and the partially silvered mirror may be replaced by a prism which reflects a portion of the light.
Patent GB-1366812-A (GB)
IPC: B66D1/06
Filed: 1973-06-22
Abstract: 1366812 Detent brakes; one-way-acting brakes LONDON ELECTRIC FIRM Ltd 22 June 1973 [10 Oct 1972] 46619/72 Heading F2E In a drive assembly of the kind including an input shaft 2X, Fig. 3, having one end portion 2AX adapted to receive withdrawably a crank handle or a power tool, the end portion 2AX is of non-circular cross-section (e.g. square, Fig. 4) and projects through a correspondingly non- circular aperture 16A, Fig. 4, in a locking plate 16 so that the shaft cannot rotate relative to the plate, the locking plate being spring-urged axially, in a guide 13X which holds it against rotation, on to the non-circular portion of the shaft; when the locking plate 16 is pushed, against the spring 17, to a second portion 2C of the shaft of reduced cross-sectional area, by application of a handle or power tool to the non-circular end 2AX, the shaft is permitted to rotate. A complete winch is shown in Figs. 1, 2, the portions of shaft in Fig. 3 being oriented in the opposite direction to the complete shaft of Fig. 1. The assembly 13X, 16, 17 and stop pins 18, Fig. 3, is intended to replace components 13, 14, 15, Fig. 1, stated to be known and now described. A circular plug 14 having a square hole is inserted in a cylindrical tube 13 and oriented so as to engage the square-section end 2A of shaft 2 to lock the shaft, and is retained in position by pins 15 on the tube 13 engaging in slots in the plug. Shaft 2, Fig. 1, carries a worm 3 driving a worm-wheel 4, Fig. 2, and has beyond the worm a flange 8 contacting a friction washer 9 in turn contacting a ratchet wheel 10 co-operating with a spring loaded pawl 11, Fig. 2. During unwinding of cable 12 from drum 1, (counter-clockwise rotation of shaft 2, Fig. 2), pawl 11 prevents rotation of ratchet wheel 10; at the same time the pull of cable 12 tending to turn drum 1 counter-clockwise (Fig. 1), causes worm-wheel 4 to urge worm 3, and hence shaft 2, to the right, squeezing friction washer 9 between flange 8 and the now-stationary ratchet wheel 10, to produce a braking effect when unwinding stops.
Patent GB-1148039-A (GB)
Title: Filter means for fractioning a suspension of solid particles
IPC: B01D35/26
Filed: 1967-10-16
Abstract: 1,148,039. Filter with rotary back-washing pump. CELLECO AB. 16 Oct., 1967 [18 Oct., 1966], No. 47012/67. Heading B1D. A suspension of solid particles flows in at 1, into space 5, and is fractionated into accept and reject portions by a filter wall 4: the accept eaters a plurality of chambers 8 having outlet ports 10 arranged circumferentially about a central .axis 13 and communicating with a common outlet chamber 11. Within chamber 11 is a rotary pump 17 having an outlet 20 which communicates with each port 10 in succession, administering a sudden back-pressure which cleanses the filter wall 4 of the corresponding chamber 8. As described, the suspension is forced in. at 1 by an external pump (not shown), and the reject fraction leaves at 7. Pump 17 operates by centrifugal force. As illustrated in Fig. 5 (not shown), pump 1.7 may incorporate vanes (17a) to drive suspension from inlet chamber 2 through. a U-bend and: up into a number of tubular filter elements (5a), thus eliminating the external pump.
Patent GB-1360457-A (GB)
Title: Amino acid derivatives
Filed: 1972-10-02
Abstract: 1360457 Amino acid derivatives BEECHAM GROUP Ltd 2 Oct 1972 [9 Oct 1971] 47099/71 Heading C2C The invention comprises compounds having the general Formula (I) or an acid addition salt thereof wherein R, R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> which may be the same or different, are hydrogen, halogen, trifluoromethyl, C 1 -C 6  alkyl, amino, nitro, hydroxy or OR<SP>8</SP> where R<SP>8</SP> is C 1 -C 6  alkyl, aryl, aralkyl or acyl; R<SP>5</SP> is hydrogen or C 1 -C 6  alkyl; R<SP>6</SP> is a straight or branched chain C 1 -C 6  alkylene group, and R<SP>7</SP> is hydrogen or a salt forming ion. They may be prepared by hydrogenation of the corresponding oxo-compound any of the groups R to R<SP>4</SP> which are reduced by the hydrogenation being introduced after the reaction. The compounds of the invention may be used in pharmaceutical compositions mixed with a conventional carrier and used in the form of a microfine powder for insufflation in pierceable capsules of hard gelatine, in injectable form dissolved or suspended in a sterile parenterally acceptable liquid or orally administerable form as tablets, capsules and syrups. These compounds and compositions may be used to depress or stimulate the appetite and cardiovascular and/or bronchodilatory and/ or central nervous system activity and also to inhibit certain antibody/antigen reactions.
Patent GB-1219320-A (GB)
Title: Vehicle with accessory box and detachable cover plate
IPC: B60R11/06
Filed: 1968-10-04
Abstract: 1,219,320. Tractors; battery arrangements. DEERE & CO. 4 Oct., 1968 [4 Oct., 1967], No. 47132/68. Heading B7H. An agricultural vehicle has a closable battery or accessory box 10, the cover 20 of which is removable and forms an extension of the driver's platform 18. The cover 20 has below it and adjacent and parallel to two edges a pair of shallow V-section strips 32, 34 which are engageable respectively with a pivotable and a fixed L-section strip of the box. The strip 32 is pivotable in brackets on one side of the box by a lever 48 which is selectively engageable with two clips 50 and 52.
Patent GB-1153603-A (GB)
Title: A process for the manufacture of Cross-Linked Products
Inventor: STIVERS EDWARD COLLIER
IPC: C08K5/095
Filed: 1966-10-21
Abstract: 1,153,603. Cross-linking olefin polymers. RAYCHEM CORP. 21 Oct., 1966 [22 Oct., 1965], No. 47293/66. Heading C3P. Cross-linked polymers are manufactured by sequentially diffusing at least two complementary reactive materials into an olefin polymer to form in situ by reaction between the materials a cross-linking agent for the polymer having a decomposition temperature below the melting- point of the polymer, and thereafter maintaining the polymer at a temperature below its melting-point but sufficient to decompose the cross-linking agent and cross-link the polymer. The materials are preferably diffused into the polymer in solvent free form. Preferred materials are tertiary hydroperoxides and oxalyl chloride. Specified polymers are polyethylene, ethylene/propylene copolymers, ethylene/ butene-1 copolymers and ethylene/ethyl acrylate copolymers. Fillers, e.g. carbon black, magnesium oxide and titanium dioxide may also be present. In examples slabs of (1 and 3) polyethylene and (4) ethylene/propylene and ethylene/ethyl acrylate copolymers, and (2 polyethylene bottles are cross-linked using t.-butyl hydroperoxide and oxalyl chloride.
Patent GB-1241333-A (GB)
Title: Aerosol dispenser with separate phases
IPC: B65D83/14
Filed: 1968-10-07
Abstract: 1,241,333. Spray producers. J. R. GEIGY S.A. 7 Oct., 1968 [11 Oct., 1967], No. 47378/ 68. Heading B2F. Aerosol dispensers comprise an outer container 1 having valve plug means and a push button, and containing a reservoir 7 of propellant 8 under pressure, and the product to be dispensed accommodated in a fluid-tight flexible bag 22c. The propellant reservoir may be within the bag or the bag may be in the form of an annulus or spiral surrounding the reservoir. The bag may be made of plastic and/or metal foils or laminates, and the outer container of metal, wood or paper-board. Means may be provided whereby the dispenser may be operated in any position, particularly by extending the propellant draw off tube 48 to half the height of the reservoir which is at most half full. Entry of liquid propellant into the draw off tube may be avoided by forming the inlet as holes or slots in the side of the tube, or by shielding the end with disc-like caps. Alternatively the propellant may be adsorbed in a spongy or powdery material which is retained by a screen across the propellant outlet.
Patent GB-971671-A (GB)
Title: Polymers from bis-phenolamides
IPC: C08G63/685
Filed: 1962-12-17
Abstract: A process for the production of synthetic linear polycarbonate-amides and polyesteramides having the repeating unit <FORM:0971671/C3/1> where R is a divalent aromatic or aliphatic hydrocarbon radical containing from 1 to 12 carbon atoms, R1 is hydrogen, an alkyl radical containing from 1 to 3 carbon atoms or an aryl radical containing from 6 to 12 carbon atoms and X is <FORM:0971671/C3/2> or <FORM:0971671/C3/3> where n is 0 or an integer from 1 to 12, comprises reacting <FORM:0971671/C3/4> with halides of X.  The examples describe the preparation of polymers by reacting:-(I) phosgene with N:N1-hexamethylene-bis (p-hydroxybenzamide; (II) adipyl chloride with N:N1-hexamethylene-bis (p-hydroxybenzamide) and (III) terephthalyl chloride with N:N1-hexamethylene-bis (p-hydroxybenzamide).  Specification 971,672 is referred to.
Patent GB-1489966-A (GB)
Title: Process for preparing a fibrous protein product and the product thereof
IPC: D01F4/00
Filed: 1975-11-19
Abstract: 1489966 Protein fibres MILES LABORATORIES Inc 19 Nov 1975 [6 Jan 1975] 47692/75 Heading B5B [Also in Division A2] A finely divided oilseed protein material is mixed with water, heated to 100-180 C. and extruded through a spinneret having orifices of 0À001 to 0À01 in diameter said orifices being spaced apart a distance not greater than one diameter of the orifices. The mixture is suitably heated by means of high frequency electromagnetic energy and extruded at a pressure of 500 to 5000 p.s.i. through an elongate spinneret having parallel capillary orifices with a length to diameter ratio of from 10 to 25.
Patent GB-1303699-A (GB)
IPC: G04R20/10
Filed: 1970-10-08
Abstract: 1303699 Electronic timepieces CENTRE ELECTONIQUE HORLOGER SA 8 Oct 1970 [4 Nov 1969] 48017/70 Heading G3T A pulse discriminator for monitoring a minutes timing signal A, Fig.1, and producing a control signal e.g. for the automatic synchronization of an oscillator serving as a timebase of a clock. The minutes signal A may be transmitted by radio to the discriminator which is effective to cut-off the control signal when parasitic signals superimposed on the minutes signals exceed a certain level, the absence of control information being preferable to incorrect control information. The time signal A comprises a pulse of 0‹1 sec duration at the beginning of each second and two pulses, each having a duration of 0À1 sec and separated by 0À1 sec, at the beginning of each minute. When a trigger circuit comprising monostable units 3, 4, receives the first impulse of the pair it successively emits a first impulse B and then a second impulse C, as illustrated, Fig. 2 (not shown). A counter flip-flop 1 controlled by the timing signal A is returned to a given position by the second impulse from the trigger whereupon the counter emits an impulse D which is differentiated in a unit 2 to produce impulse E. A 'squelch' circuit is provided to cut the minutes timing signal A when parasitic signals P exceeding a certain level are received, and includes an AND gate 5, monostable unit 6, and RC circuit 7. The 'squelch' circuit is controlled by the said first impulse B from the trigger 3 and by impulse D from the counter and produces an impulse H of given duration when two controlling pulses B and D coincide.. A control circuit comprising an AND gate 8 emits an impulse I if the second impulse C from the trigger 4 and the differentiated impulse E from the counter 1 coincide and only in the absence of a 'squelch' impulse H. The impulse I changes the state of a monostable unit 9 having a period of 250m secs. The unit 9 thus produces a control signal U for automatically synchronizing a time keeper, for each unperturbed pair of minute impulses in signal A. The signal J may control illumination of a lamp which may be used for the manual hand setting of the timepiece. A current diagram of the discriminator is illustrated in Fig. 3 (not shown).
Patent GB-1171806-A (GB)
Title: Improvements in or relating to a Stator Vane Assembly for a Machine for Use Both as a Pump and as a Turbine.
IPC: F04D29/68
Filed: 1967-10-23
Abstract: 1,171,806. Hydraulic turbines; centrifugal pumps. VEREINIGTE OSTERREICHISCHE EISEN - UND STAHLWERKE A.G. Oct. 23, 1967 [Nov. 9, 1966], No. 48135/67. Headings F1C and F1T. A hydraulic reversible pump-turbine having fixed stator vanes 5 has apertures 6 in the convex surface of each vane adjacent the periphery of the runner 1 so that when the machine is operating as a pump some of the liquid leaving the runner flows through the apertures 6 into a duct 7 within the vane and then leaves through an aperture 8 to rejoin the mainstream. When the machine is operating as a turbine, a flap valve 9 mounted in the duct 7 closes to prevent flow through the duct. An opening 10 in the top vane carrier 3, closed by a plug 11 having an inspection window 12, enables removal of each valve 9 for cleaning. The duct 7 has a diffusion action so that the velocity of flow of the liquid leaving aperture 8 is the same as that past the vane. The vanes are set for optimum performance when the machine is operating as a turbine but the construction helps to reduce shock losses during pump operation.