baber/WOPTO huggingface dataset:
Patent GB-841430-A (GB)
Title: Improvements in or relating to optical measuring or checking apparatus
Inventor: ODDIE FREDRICK BRIAN
IPC: G02B23/24
Filed: 1956-12-21
Abstract: 841,430. Optical gauging-apparatus. ROLLSROYCE Ltd. Dec. 11, 1957 [Dec. 21, 1956], No. 39125/56. Class 106 (2). [Also in Group XX] Optical measuring or checking apparatus for inspecting a bore in an article 11 comprises a lens 12 of small depth of focus, means to support the article so that the bore is optically aligned with the optical axis of the lens, a graticule 24, with which the image of the bore may be checked, and a stylus 22 adapted to contact the external surface of the article. As shown, a hollow turbine blade 10 has its bore 11 illuminated by a bulb 13, the bore being coated with a thin layer of white powder. The blade 10 is clamped by its root 10a substantially horizontally and so that it can be pivoted about its own axis and tilted about a perpendicular axis. The optical apparatus consists of a bridge 16 on which are mounted the lens 12 and a mirror system 25, 26, 28, mirror 28 being half silvered. A slide 20 which can be spring-biased to one side or the other as desired carries a pair of styli 22 and a graticule screen 23 on which are mounted a pair of target-like graticules 24 illuminated by a lamp 18. The graticules 24 each consist of a number of concentric circles, the centre one of which is of the same diameter as, and aligned with, the centre of the hemispherical tip of the corresponding stylus 22. The mirror system 25, 26, 28, is arranged so that the styli 22 and the graticules 24 are situated the same distance optically from the lens 12, and an image of the graticules appears on the screen 27. The blade 10 is inserted between the styli 22 and adjusted so that the particular cross-section to be checked lies between the styli. The slide 20 is then biased to one side so that the corresponding stylus touches the outer surface of the blade 10. The image, Fig. 2, on the screen 27, then consists of a light portion 11a corresponding to the cross-section of the bore 11 and a set of concentric circles 24a produced by the graticule 24. The distance d between the innermost circle 22a and the edge of the portion 11a corresponds to the wall thickness of the blade at that point. In a modification, the bulb 13 is replaced by a mercuryvapour lamp shining on a prismatic transparent member placed in the bore 11 (see Group XX).
Patent GB-1437258-A (GB)
Title: Hydrates as curing aids
IPC: C08F14/00
Filed: 1973-08-20
Abstract: 1437258 Curing fluoroelastomers MINNESOTA MINING & MFG CO 20 Aug 1973 [21 Aug 1972] 39344/73 Heading C3P Fluoroelastomers which are copolymers of vinylidene fluoride with at least one terminally unsaturated fluoromonoolefin having at least one fluorine atom substituent on each doublebonded carbon atom, each carbon atom of said fluoromonoolefin being substituted only with fluorine, chlorine, hydrogen or a C 1 -C 4  fluoroalkyl or fluoroalkoxy group, said copolymer being one in which at least 10% of the chain carbon atoms are -CH 2 - units, are cured in the presence of (1) at least one quaternary ammonium or phosphonium compound, and (2) a salt hydrate containing water which is relatively firmly bonded at ambient temperature but at least a portion of which is readily released at 120-175 C., said hydrate being present in an amount to give 0À1-3À0 parts by weight of water per 100 parts elastomer. The compositions may also contain an amine cocurative, a curing accelerator, an acid acceptor, a base and a filler. In examples, vinylidene fluoride/hexafluoropropylene copolymer and a mixture thereof with vinylidene fluoride/ chlorotrifluoroethylene copolymer are cured in the presence of triphenyl benzyl phosphonium chloride and a salt hydrate selected from MgSO 4 .7H 2 O, CaSO 4 .2H 2 O, Al 2 (SO 4 ) 3 .18H 2 O, Fe(NH 4 )(SO 4 ) 2 .12H 2 O, calcium citrate.4H 2 O, sodium citrate. 2H 2 O and cobalt acetate.4H 2 O ; the compositions also containing MgO, Ca(OH) 2 , 2,2 - bis(p - hydroxyphenyl) - hexafluoropropane, and a filler selected from carbon black, silica and calcium silicate.
Patent GB-1461909-A (GB)
Title: Biocidal compositions
IPC: A01N43/80
Filed: 1973-08-21
Abstract: 1461909 Biocidal compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 16 July 1974 [21 Aug 1973] 39430/73 Heading A5E Biocidal compositions comprise a polymeric quaternary ammonium compound and an isothiazolin-3-one compound having the general formula: wherein R represents a hydrogen atom, a halogen atom, a C1-C4 alkyl group or a cyano group; R1 represents a C1-C4 alkylsulphinyl group, an aralkylsulphinyl group containing up to 8 carbon atoms, a C1-C4 alkylsulphonyl group or an aralkylsulphonyl group, containing up to 8 carbon atoms when R is a cyano group; R1 represents a hydrogen atom, a halogen atom, an aralkyl group containing up to 8 carbon atoms or a C1-C4 halogeno alkyl group when R is a C1-C4 alkyl group or a halogen atom provided that R, can be a C1-C4 alkyl group when R is a C1-C4 alkyl group and R1 is an aralkyl group containing up to 8 carbon atoms or a C1-C4 halogeno alkyl group when R is a hydrogen atom; or R1 or R2 taken together represent the divalent group -CH=CH-CH=CH-, the hydrogen atoms of which may !be replaced by substituents selected from halogen atoms, C1-C4 alkyl groups, C1-C4 alkoxy groups, the nitro group and the cyano group. Preferred polymeric quaternary ammonium compounds are a 60:40 molar copolymer of styrene and trimethyl 2- methacryloyloxyethyl ammonium chloride, poly(trimethyl 2-methacryloyloxyethyl ammonium methosulphate), poly(vinyl benzyl trimethylammonium chloride), cyclic polymer of dialkyl dimethyl ammonium chloride, poly (N-methyl vinyl pyridinium chloride), poly (vinyl chloroacetate) quaternised with pyridine, copolymers of poly(vinyl chloroacetate) and vinyl acetate quaternised with pyridine and the polymer from decamethylene dibromide and N, N, N', N'-tetramethylhexamethylene diamine. The preferred isothiazoline-3-one compound is 1, 2-benzisothiazolin-3-one.
Patent GB-1499926-A (GB)
Title: Contact device for a flat cable
IPC: H01R12/79
Filed: 1975-09-29
Abstract: 1499926 Connector for flat cables DU PONT DE NEMOURS (NEDERLAND) BV 29 Sept 1975 [7 Nov 1974] 39809/75 Heading H2E A contact device for connecting the cover of a flat cable 13 to, for example, the conducting strips 19 of a circuit board 8, comprises a housing 1 provided with channels 2, one for each core of the cable, in which channels contact elements 3 each having at the front end a pair of contacts 4 adapted to pierce the cable insulation and embrace the cable core 14 and at the rear end a pair of resilient contacts adapted to grasp the edge of the circuit board. In use the elements 3 are pushed from a first inoperative position (Fig. 1) in which they are held by a lip 9 snap fitting into a hole 10 in housing 1, to a second contacting position in which they are held by the lip 9 engaging a second hole 11 (Fig. 3, not shown). The rear end of the housing 1 and elements 3 may be formed on pins or sockets for pin and socket connections.
Patent GB-1368863-A (GB)
Title: Electromagnet for a timepiece motor
IPC: H02K3/26
Filed: 1972-08-30
Abstract: 1368863 Electromagnets; printed circuit assemblies ITT INDUSTRIES Inc 30 Aug 1972 [2 Sept 1971] 40123/72 Headings HIP and H1R [Also in Divisions G3 and H2]  An electromagnet which forms part of an electric motor for a watch comprises a coil formed by a first set of conductors 2 on an insulating substrate 1 and covered by an intermediate insulating layer 3, a second set of conductors 6 on the layer 3 and connected through apertures 7 in the layer 3 to the conductors 2 to form the coil, and a ferromagnetic layer 4 between the conductors 2, 6 to form a core of the coil. The substrate 1 may be a passivation layer on the surface of a hybrid or monolithic integrated circuit (9, Fig. 3, not shown) which contains motor driving circuitry and connections between coils if several are formed on a common substrate. The core 4 has polepieces 5 to co-operate with a permanent magnet arrangement 8. The electromagnet may form a stationary or moving part of the motor which may be of the continuous or step-by-step revolving type, or of the rotary vibrating type, e.g. a balance. The substrate 1 may thus be in the form of a disc which is pivotally mounted and has several coils arranged tangentially thereon, or radially with the coil diameters decreasing toward the axis of rotation. The coil current is fed in through spiral balance springs.
Patent GB-973366-A (GB)
Title: Magnetic recording system
IPC: G11B5/02
Filed: 1961-11-09
Abstract: 973,366. Magnetic anti-erase arrangement. RADIO CORPORATION OF AMERICA. Nov. 9, 1961 [Nov. 30, 1960], No. 40192/61. Heading G5R. To prevent a head represented by its centretapped winding 10<SP>1</SP> from accidently obliterating a semi-permanent record track, its local circuitry differs from that of its neighbours by the additional components R 1 , R 2 , D 3  and D 4 . Standing currents through resistors 36, 42 bring diodes D 1 , D 2  of any selected head to a low impedance state and actuation of either of switches 30 or 32 writes in a "1" or "0" pulse, or alternatively such a pulse is read by it, the low impedances R 1 , R 2  being insignificant during reading by the head 10<SP>1</SP>. However, an inadvertent write pulse applied to head 10<SP>1</SP> causes a potential drop across one or other of the resistors R 1 , R 2  sufficient to render the associated diode diode D 3 , D 4  conducting, whereupon the diode bypasses the major portion of the pulse which is not written in. The diodes D 3 , D 4  are temporarily disconnected to edit the semi-permanent track. The switches indicated are stated to diagrammatically represent transistor switching arrangements.
Patent GB-1029866-A (GB)
Title: Control circuits for electric motors
IPC: H02P1/44
Filed: 1964-10-02
Abstract: 1,029,866. Control of A.C. motors; cooling electric motors. HUPP CORPORATION. Oct. 2, 1964 [Oct. 2, 1963], No. 40339/64. Headings H2A and H2J. A single-phase induction motor drive the compressor of a refrigerator and has main and auxiliary stator windings 58a, 58b. The auxiliary winding poles are at 45 degrees with the main winding poles, the auxiliary windings having the higher impedance. Initially, both stator windings are energized directly through contacts 106, 108. After a short period, however, resistance-wire 100 expands to break contact 108 whereby capacitor 110 is connected in series with winding 58b. If there is an overload, contact 106 opens to disconnect the motor. A timer motor 90 periodically opens contact 92a to de-energize fan motor 96 and the compressor motor, and energize heating-coil 95 associated with the evaporator. The operation of the heating-coil continues until defrost thermostat 97 opens the circuit. Afterwards, the timer motor restores the circuit to its initial condition. The fan motor 96 circulates air over the evaporator provided that the timer contacts 92a are closed, the refrigerator door is closed, and the cabinet-temperature is not too low. The compressor motor has a fan with radial flow vanes which are cast as part of the rotor, and axial flow vanes which are formed from a sheet metal disc attached to the ends of the radial flow vanes.
Patent GB-1368103-A (GB)
Title: Device for guiding and supporting a continuous casting leaving a liquid-cooled mould
IPC: B22D11/128
Filed: 1971-08-27
Abstract: 1368103 Continuous casting MANNES. MANN AG 27 Aug 1971 [16 Sept 1970] 40375/71 Heading B3F [Also in Division B8] At opposite sides of a strand 2 descending from a mould 1, two series of plates 4, each series carried by a moving endless chain or belt 3, are pressed against the strand (as by rollers 7) to move therewith to guide and support it, there being projections (which may be punctiform projections 13, Fig. 4) on one side of each plate 4, to contact the strand, the contact area not exceeding 50% of the area of the plate side. The plate units, driven by rolls 5<SP>1</SP>, in synchronization with withdrawal rolls, may be followed by guide rolls 6. A plate 4 may be in the form of a frame 11 enclosing a grid or lattice 12 so that cooling water may be sprayed through on to the strand 2. Alternatively, nozzles may be arranged to spray directly on to the strand. The projections may be oblique strips, or annuli surrounding through-holes.
Patent GB-867124-A (GB)
Title: Protection device against failures of pipes or containers for fluids under pressure
IPC: B60T11/32
Filed: 1958-12-17
Abstract: 867,124. Valves. REGOLI, B., and DI STEFANO, C. Dee: 17, 1958 [Dec. 21,1957; April-5, 1958], No. 40721/58. Class 135. [Also in Groups XXXIV and XXXVII] .  A safety cut-off device for hydraulic systems comprises a body 1 having an inlet 2, 40 connected to a supply line, and outlets 10 to separate sections of the system; a groove 4 in the body enables fluid to pass to either side of a piston 7 and to outlets 10 via ports 14, 12 in members 5, the piston 7 being centred by equal pressure on its faces and by springs 28. Should a fault occur in one of the sections, then loss of pressure on one side of piston 7 causes it to move toward the defective section, the piston's central portion 9 moving a pin 24 in an extension 22 of member 5, to move a locking cap 26 into a blind hole 25 in a pin 16, then the cap 26 has completely entered hole 25 the pin 16 is moved by springs 20 to close port 12 and seal off the defective section. When piston 7 moves from its central position, a metal disc 37 in a cap 30 serewed into body extension 27, is moved by spring 38 into contact with body 1 to make an electric circuit to operate a warning light, the disc 37 being normally insulated from the body by insulators 36, 34. The member 5 nearest the defect is unscrewed from the body to reset the device. In an alternative arrangement in Fig. 2, on failure in a section of the system, the piston 63 moves toward the defective section until pin 71 is moved into recess 62 in body 51 by spring 73 enabling a spring 66 to move a pin 64 into port 61 or 60 to seal off the defective section. Should the fault occur in the section fixed to the end 52 of body 51, then to reset the device the cap 53 and stud 77 are removed; a tool is inserted in slot 59 in the piston to rotate the piston and align the shot pin 71 with the hole of stud 77 from which it is removed, the piston is then removed, pins 71 and 64 re-inserted in piston 7 and the device reassembled. If the defect occurs in the section attached to cap 53 then the cap only is removed for resetting the device. After resetting the washer 76 is removed from stud 75 which is re-inserted to engage the groove 74 in piston 63 to fix the piston whilst air is removed from the system.
Patent GB-1153479-A (GB)
Title: Improvements in Weight-Measurement Devices.
Inventor: HATTON JOHN SAMUEL
IPC: G06G7/26
Filed: 1965-09-24
Abstract: 1,153,479. Measuring weight electrically. W. & T. AVERY Ltd. Sept. 26, 1966 [Sept.24, 1965], No.40751/65. Heading G1N. [Also in Division G4] In a weight measuring transducer device, the nonlinearity of the output electrical signal variation is corrected by adding to the signal a correction signal variable therewith and of approximately equal and opposite nonlinearity thereto, so that the resultant signal varies substantially linearly. The output of a strain gauge load cell varying nonlinearly with applied weight Fig. 1 (not shown) is applied to terminals 10 connected over resistance 26 to output terminals 11, and the input is applied to variable gain amplifier 12 energizing a bridge comprising three linear resistors 16, 17, 18 and nonlinear resistor 19, which may be a silicon carbide element or a Zener diode having an approxiniately equal and opposite nonlinearity to that of the strain gauge signal Fig. 2 (not shown). The bridge output energizes a variable potentiometer whose output is added to that developed at the output terminals, and the bridge is adjusted by varying amplifier gain to be alanced at maximum cell loading, after which the potentiometer is adjusted for half maximum output for half loading, and the resultant signal will then vary substantially linearly with load. In a modification Fig. 4 (not shown) the bridge may comprise two equal resistors and two non- linear resistors; corresponding pairs being disposed in opposite ridge arms. In a further modification Fig. 5 (not shown) the bridge output is combined with the nonlinear signal in a series resistive summation circuit at the inserting input of a pushpull amplifier supplying the output, whose non-inverting input is connected over a series resistance to the output of the bridge energizing amplifier; with both inputs of the pushpull amplifier being resistance shunted to earth. The resistances are proportioned to cancel the linearly varying component of the voltage introduced by the bridge circuit, while retaining the required correcting nonlinear component Fig. 6 (not shown).
Patent GB-1018812-A (GB)
Title: Improvements in vaporizing devices for liquified gaseous fuel, namely for use in internal combustion engines
IPC: F02M21/06
Filed: 1962-10-29
Abstract: 1,018,812. Valves. MASSEY-FERGUSON Inc., and BENDIX CORPORATION. Oct. 29, 1962 [Nov. 1, 1961], No. 40795/62. Heading F2V. [Also in Division F1] In a vaporizer for liquefied gaseous fuel, the fuel flows to the inlet 41 of a pressure reducing valve 32 through a heating coil 60 in heat exchange relation with the engine cooling water in a casing 12 and any liquefied fuel in the chamber 42 downstream of valve 32 is collected and vaporized in a trap 70. The pressure-reducing valve 32 is controlled by a spring-loaded diaphragm 46 subjected to the pressure in chamber 42.
Patent GB-1026605-A (GB)
Title: Apparatus for loading mine cars and like vehicles
Inventor: BARKER WILFRED
IPC: E21D9/12
Filed: 1963-10-16
Abstract: 1,026,605. Loading mine cars. W. H. BARKER & SON (ENGINEERS) Ltd. Oct. 7, 1964 [Oct. 16, 1963], No. 40800/63. Heading B8E. A train of mine cars 15 is loaded with material which passes from a continuously driven conveyer 11 down a fixed shoot 10 and a movable shoot 12 on to a conveyer 14 which discharges into a shoot 17. When a car is situated beneath the shoot 17, the conveyer 14 is driven and the shoot 12 occupies the dashed-line position in which it forms a continuation of the shoot 10. When the car is fully loaded, a closure gate 18 pivoted to the shoot 17, is closed by a ram 19, the conveyer 14 is stopped, and the shoot 12 is retracted to the chain-line position by a ram 16 allowing material from the shoot 10 to collect on the conveyer 14. When the loaded car is replaced by an empty car, the gate 18 is opened, the conveyer 14 is restarted and the shoot 12 is returned to its initial position. The shoot 12 may alternatively be pivoted to the shoot 10, Fig. 2 (not shown), or mounted thereon for telescopic withdrawal.
Patent GB-1080913-A (GB)
Title: Mea-substituted halobenzenes
Inventor: TOLGYESI WILLIAM STEPHEN
IPC: C07C17/38
Filed: 1965-09-24
Abstract: Meta-bromobenzene compounds having at least one bromine substituent in one of the meta positions with respect to another nonalkyl ring substituent, and substantially free from the corresponding ortho- and parasubstituted bromobenzene compounds are produced by reacting a mixture containing (a) a meta-substituted bromobenzene compound and (b) at least one ortho- or para-substituted benzene compound with at least a stoichiometric amount based on the total amount of ortho- and para-bromo compounds present of an aromatic hydrocarbon bromine acceptor containing 6-15 carbon atoms in the presence of a Friedel-Crafts catalyst so that the ortho-and para-bromine atoms are eliminated.  The process may be used for obtaining the metabromo compound from the mixture of isomers obtained when benzene itself or benzene having a fluoro, bromo or chloro substituent is treated with bromine in the presence of a Friedel-Crafts catalyst.  Suitable bromine acceptors or an alkyl substituted benzene.  The metabromobenzene compounds concerned may have as substituents, in addition to the m-bromo radical, a chlorine, bromine or fluoro radical, a phenyl group, a halophenyl group, a phenoxy group or a halophenoxy group.  The preferred Friedel-Crafts catalysts are salts of formula MXn in which M is a metal, e.g. Al, Fe, Sn, Sb or Zn of valency n and at least one X is a halogen.
Patent GB-950678-A (GB)
Title: Improvements in and relating to diaphragms and diaphragm-operated machines
Inventor: GROSSFIELD KARL
IPC: F04B43/06
Filed: 1961-11-16
Abstract: 950,678. Diaphragm pumps. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 2, 1962 [Nov. 16, 1961], No. 41031/61. Heading F1N. [Also in Division F2] A rubber &c. pump diaphragm 1 is reinforced by concentric rigid rings 5 bonded in recesses in annular mounds 4 on one side 3 thereof. Parallel reinforcing cords 2 or an insert of cross-weave fabric (not shown) may be embedded in the diaphragm. Means e.g. chains 13, Fig. 3, are attached to the rings 5 to actuate the diaphragm in one direction. In the vacuum pump shown in Fig. 3, which comprises a pumping chamber 7 having an inlet 15 and outlet 16 and a pressure chamber 8 connected to a pressure source 14, the chains 13 engage holes in the rings 5 and are secured to a frame 12 at one end of a shaft 10 reciprocated by a motor 9. In operation, during the pumping stroke the shaft 10 moves downwards and the diaphragm 1 is forced by the pressure in the chamber 8 into the chamber 7, the diaphragm closing the inlet 15 and discharging fluid through the outlet 16 until the diaphragm lies against the walls of chamber 7. The motor 9 then pulls the diaphragm upwards to its original position by means of the chains 13 against the pressure in chamber 8, the inlet 15 being uncovered and the chamber 7 again being filled with fluid. The cycle then recommences. In a modification, the reciprocatory mechanism is omitted and the rings 5 are connected by springs to the end wall of the chamber 8 which is subjected alternately to pressure and to exhaust.
Patent GB-1063298-A (GB)
Title: Runner blade servo system for turbines with overrun
Inventor: BOYD LAWRENCE MILTON
IPC: G05D13/00
Filed: 1963-10-17
Abstract: 1,063,298. Hydraulic turbines. DOMINION ENGINEERING WORKS Ltd. Oct. 17, 1963, No.41064/63. Heading F1T. [Also in Division G3] In a Kaplan type turbine, the runner blades 3, 4 Fig. 1 are journalled in a rotating casing and are adjusted by a piston 9 through a rod 8 and links 7. The casing forms a reservoir for an electrically driven pump 23 which supplies fluid to a control valve 21. Movement of the valve 21 connects opposite sides of the piston to supply and exhaust and the piston moves until the valve 21 again closes. Opposite sides of the piston are also connected to the reservoir through non-return valves so that when the valve 21 is actuated the torque on the blades moves the piston 9 rapidly by allowing fluid to be drawn from the reservoir through the appropriate non-return valve. The valve 21 is actuated by a cable (20), Fig. 2 (not shown) to position the blades with respect to the wicket gate (13). This gate is positioned by a motor (17) with changing load on the turbine and the cable is actuated by a cam (18).