baber/WOPTO huggingface dataset:
Patent GB-1401995-A (GB)
Title: Sighting goniometers
IPC: G01C1/02
Filed: 1972-10-30
Abstract: 1401995 Photo-electric axis alignment MESSERSCHMITT - BOLKOW - BLOHM GmbH 30 Oct 1972 [20 Nov 1971] 49848/72 Heading H4D Relates to a system for aiming a device, e.g. a gun, at an object with the aid of a sighting telescope 11 having a sighting axis 10 and a partially reflecting plane mirror 13 which produces an image of the object in an image plane 24, the aiming axis of the device which is defined by a luminous source 5 attached to said device being automatically aligned with the sighting axis 10 by an error signal U1 produced by a position-sensitive detector 15 attached to the telescope and responsive to the radiation from said source 5 passing through the mirror 13. According to the present invention the electrical zero axis of the detector 15 is automatically aligned with the sighting axis 10 by projecting on to the detector 15 an image of an illuminated aperture 22<SP>1</SP> corresponding to the sighting axis 10, any resultant error signal U2 from the detector 15 being applied to control a resistor 19 in the voltage feed for the detector 15 to effect the required alignment. As described the aperture 22<SP>1</SP> is illuminated by a modulated light source 20 so that the error signal U2 is modulated in a corresponding manner and can be separated from the (unmodulated) error signal U1 by a device 25; it is stated that the light source 20 may be modulated in frequency and phase. The illuminated aperture 22<SP>1</SP> is projected on to the detector 15 by a lens 23 and the mirror 13, a corresponding image being also formed in the image plane 24 to act as a sighting point. The luminous source 5 may comprise a laser producing visible or infra-red radiation and the mirror 13 may be provided with a filter coating 14 which is transparent to the radiation from the source 5 but fully reflective to radiation from other spectral regions.
Patent GB-1358059-A (GB)
Title: Moulding compositions containing polyethylene and polyisobutylene or an ethylene copolymer
IPC: C08L23/06
Filed: 1971-10-28
Abstract: 1358059 Polyethylene moulding compositions BADISCHE ANILIN- & SODA-FABRIK AG 28 Oct 1971 [29 Oct 1970] 50123/71 Heading C3P Moulding compositions comprise by weight (I) polyethylene of density 0À915 to 0À965 g./c.c. and melt index 0À005 to 20 g./10 mins., either (2) (a) 1À5 to 10 per cent of polyisobutylene of molecular weight 300,000 to 5,000,000 or an ethylene copolymer containing 20 to 60 weight per cent of vinyl acetate units, or (2) (b) 1À5 to 30 per cent of an ethylene copolymer containing 20 to 60 per cent of a C 1 -C 8  alkyl acrylate or methacrylate, said ethylene copolymers having a melt index of 0À5 to 200 g./10 mins., and (3) 0À1 to 5 parts of N,N<SP>1</SP>-distearoyl ethylenediamine. The compositions may also contain fillers, e.g. chalk and carbon black, and stabilizers, e.g. 4,4<SP>1</SP>-thio bis-(3-methyl-6-t.-butyl phenol). Examples describe compositions of polyethylene, N,N<SP>1</SP> - distearoylethylene diamine and (1 and 2) ethylene/vinyl acetate copolymers and (3) polyisobutylene.
Patent GB-1477819-A (GB)
Title: Method of preparing organotin compounds
IPC: C07F7/22
Filed: 1975-12-08
Abstract: 1477819 Triorganotin carboxylates M & T CHEMICALS Inc 8 Dec 1975 [6 Dec 1974] 50243/75 Heading C2J A triorganotin derivative of an ethylenically unsaturated mono- or dicarboxylic acid of the formula R<SP>2</SP>(CO.OH) n  where n is 1 or 2 and R<SP>2</SP> is an "n-valent" C 2-20  hydrocarbyl radical having a double bond between 2 adjacent C atoms that do not form part of an aromatic ring structure, is prepared by reacting the acid or an anhydride thereof with a stoichiometric amount of a triorganotin hydroxide or bis-(triorganotin) oxide, removing the by-product water from the reaction mixture by contact with a solid, chemically inert dehydrating agent sufficient to remove at least 95% of the water present and separating the triorganotin derivative from the dehydrating agent. The reaction may be effected with slight heating in a solvent such as mineral spirits or in the absence of a solvent. The acid may be acrylic, methacrylic, crotonic, isocrotonic, 3-butenoic, oleic, 1-cyclohexene-1- carboxylic, cinnamic, abietic, maleic, fumaric, citraconic, itaconic or tetrahydrophthalic acid. The dehydrating agent may be anhydrous MgSO 4 , CaSO 4 , a calcium halide, Na 2 SO 4 , K 2 CO 3 , activated alumina, silica gel or a type 4A or 5A molecular sieve. In the examples, bis- (tributyltin)oxide is reacted with methacrylic acid.
Patent GB-1490317-A (GB)
Title: Aqueous drilling fluid and a method increasing its drilling lubricity
IPC: C09K8/06
Filed: 1975-12-10
Abstract: 1490317 Drilling fluids OIL BASE GERMANY GmbH 10 Dec 1975 [22 Oct 1975] 50617/75 Heading E1F An aqueous drilling fluid comprises an emulsion of dehydrated castor oil in a brine solution containing an alkaline earth metal oxide or hydroxide, the dehydrated castor oil serving to enhance the lubricity of the fluid. Preferably the dehydrated castor oil is comprised of at least 75% by weight of triglycerides of linoleic acid isomers and is present in an amount of from 0.5 to 3.0% by volume based on the volume of the fluid.
Patent GB-1329959-A (GB)
Title: Expanding mandrel
IPC: F16C13/00
Filed: 1971-11-02
Abstract: 1329959 Mandrels GOODYEAR TIRE & RUBBER CO 2 Nov 1971 [2 Nov 1970 15 Sept 1971] 50927/71 Heading B3B [Also in Division F2] To grip the core of a cylinder (e.g. of fabric reinforced rubber to enable V-grooves to be cut to form V-belts therefrom a mandrel comprises a cylindrical diaphragm 42 coaxially disposed about a core 13, 15 and inflatable (e.g. in space 37) to radially move outwardly against a bias (e.g. an annular coil spring (89), Fig. 3 (not shown), axially extending segments 70 to engage a stop (e.g. rings 76 in cut-outs 80 in the segments and/or pins 72 on the segments movable in slots 74 in end plates 46) the segments having caps 86 whose outer peripheral surfaces lie substantially on a cylinder when the segments are extended. The coil springs (89) may lie in cutouts (84) similar to but axially spaced from the cut-outs 80. To hold the rings 76 coaxial with the core. One, or two adjacent pairs of diametrically opposite segments may be held in their radially outer positions by their end pins 72 located in holes instead of slots 74, and have screws holding the rings 76 to the radially inner surfaces 82 of their recesses 80. In this case the radially inner surfaces of their recesses 84 are suitably relieved to enable the springs 89 to retract the other segments.
Patent GB-1022739-A (GB)
Title: Circular particle accelerators of the cyclotron type
IPC: H05H13/00
Filed: 1964-12-16
Abstract: 1,022,739. Cyclic particle accelerators; turning resonant structures. C.S.F.-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Dec. 16, 1964 [Dec. 17, 1963], No. 51138/64. Headings H1D and H1W. In a cyclotron, one of the D-electrodes 1 is supported by a flat hollow beam 2 connected to the wall of a resonant cavity 3 which is formed partly by a cylindrical sector 9 and is provided with a panel 10 rotatably mounted at 11 to vary the tuning of the resonant circuit. The panel 10 has a width equal to that of the support beam 2, and has a part-cylindrical end-piece 10 having a width equal to that of the cavity 3 which forms a fixed capacity with cavity wall 9. The cavity is excited by a loop 17 connected at 20 to the high D.C. voltage and at 21 to a high frequency amplifier located in cage 22. The cyclotron may be operated with variable frequency excitation in order to cause the extraction energy of the accelerated particles to vary within the relativistic domain, and may be used to accelerate different particles, the tuning band being of the order of 1 :3. A known tuning mechanism comprising a series of foldable panels in a resonant cavity is referred to.
Patent GB-1533566-A (GB)
Title: Removal of sulphur dioxide from gas streams
IPC: B01D53/50
Filed: 1975-12-15
Abstract: 1533566 Sulphur dioxide absorption process UNION CARBIDE CORP 15 Dec 1975 [16 Dec 1974] 51208/75 Heading B1L In the removal of sulphur dioxide from a gas stream comprising SO 2 , H 2 O, N 2  and O 2  using a system of at least three beds of activated crystalline zeolite adsorbent of pore diameter at least 4A‹, each fixed bed cyclically undergoes the sequential steps of (a) adsorption, wherein the gas stream is passed therethrough at 10-50‹C and SO 2  and H 2 O are selectively adsorbed; (b) desorption, wherein air containing not more than 5 ppm vol water vapour and at 150-350‹C is passed counter currently through the bed to desorb and flush away SO 2  and H 2 O; and (c) cool down, wherein an air stream at 0‹-60‹C which contains 10-200 ppm water (and which has been formed by passing ambient air containing more than 200 ppm water vapour through a sulphuric acid scrubber) is passed co-currently through the bed; the cyclic operation of the beds being such that at any given time each of the steps is in operation, and the effluent air stream from the bed or beds undergoing step (c) being used, if necessary after additional heating, to desorb the bed or beds undergoing step (b), the effluent air stream having been dehydrated to a water vapour content of not more than 5 ppm vol. during step (c).
Patent GB-1468178-A (GB)
Title: Method for the continuous production of an annealed steel of  controlled hardness
IPC: C21D11/00
Filed: 1974-11-27
Abstract: 1468178 Controlled continuous annealing of steel ITALSIDER SpA 27 Nov 1974 [29 Nov 1973] 51268/74 Heading C7N Steel is continuously annealed to a controlled uniform hardness by indirectly monitoring the product by measurement of a magnetic property, the result being compensated for variation in carbon content by measuring the same property at the same location in the product but upstream of the annealing furnace. The property is measured upstream, M CR , and is related to the carbon content C, p,p.m., by the expression where K, K O  are constants derived experimentally and α lies between 2 and 3.5. The same property is measured at the same location in the product and at the exit of the furnace to provide a value M CO  from which hardness is obtained by the Formula:- where D = hardness S = thickness at the location where the measurements are made a, b, c, d and A O  = coefficients obtained by statistical analysis of known results.
Patent GB-1527749-A (GB)
Title: Sulphinyl halides and their preparation from penicillin sulphoxides
IPC: C07D205/09
Filed: 1975-12-18
Abstract: 1527749 Azetidinyl sulphinyl chlorides ELI LILLY & CO 18 Dec 1975 [24 Dec 1974 19 Nov 1975] 51963/75 Heading C2C Compounds of formula where R<SP>1</SP> is a carboxylic acid protecting group; and R is (1) an imido group of the formula in which R 2  is C 2 -C 4  alkenylene or 1,2-phenylene; (2) an amido group of the formula in which R 3  is (a) hydrogen, C 1 -C 3  alkyl, halomethyl, benzyloxy, 4-nitrobenzyloxy, tbutyloxy, 2,2,2 - trichloroethoxy, 4 - methoxybenzyloxy or 3 - (2 - chlorophenyl) - 5 - methylisoxazol - 4 - yl; (b) the group R<SP>1</SP> in which R<SP>1</SP> is 1,4-cyclohexadienyl, phenyl or phenyl substituted with 1 or 2 halogens, protected hydroxy, nitro, cyano, trifluoromethyl, C 1 -C 4  alkyl, or C 1 -C 4  alkoxy; (c) a group of the formula R<SP>1</SP>-(O) m -CH 2 - in which R<SP>1</SP> is as defined above and m is 0 or 1; or (d) a group of the formula in which R<SP>1</SP> is as defined above; and W is protected hydroxy, or protected amino; (3) an imidazolidinyl group of the formula in which R<SP>1</SP> is as defined above and U is nitroso or acetyl; or (4) an imido group of the formula in which R<SP>1</SP> and m are as defined above, and R 4  is C 1 -C 3  alkyl, C 1 -C 3  haloalkyl, C 1 -C 3  alkoxy, or 2,2,2-trichloroethoxy, are prepared by reacting a penicillin sulphoxide of formula with an N-chloro halogenating agent at 75- 135 C. in an inert solvent under substantially anhydrous conditions. The compounds of Formula I in which R is R 3 CONH- are claimed per se. The penicillin sulphoxide of Formula II in which R 1  is p-nitrobenzyl and R is is prepared by ozone oxidation of the corresponding penicillin, itself obtained from 2,2,2- trichloroethyl chloroformate on p-nitrobenzyl 6 - phenoxyacetamido 2,2 - dimethylpenam - 3- carboxylate.
Patent GB-1281367-A (GB)
Title: Hydraulic control valve
Inventor: HODGSON ROBERT FRASER
IPC: F15B21/044
Filed: 1969-10-23
Abstract: 1281367 Valves COMMERCIAL SHEARING & STAMPING CO 23 Oct 1969 51994/69 Heading F2V An hydraulic control valve which is biased to a neutral position by means of a spring and flange arrangement 40, 41, 42 and which is used to control a motor 80, comprises a hollow spool valve member 16 having formed therein three sets of ports 47, 58 and 60, two check valves 51 and 64 disposed one at each end of the valve member, two inlet chambers 18 and 19 fed from a common source, an outlet chamber 20, a passage 24 extends transversely to the valve bore 14 and which communicates with the bore via a passage 23, the passage 24 being connnected to the source feeding the inlet chambers, two exhaust chambers 34, 35 and two working chambers 31 and 32. When in the position shown, fluid from the inlet chambers 18 and 19 is caused to flow to the outlet chamber 20 and accordingly motor 80 remains stationary. When the spool is moved to the left as seen in the drawing, (Fig. 4, not shown), motor line 84 is fed from the transverse passage 24 by way of passage 23, ports 58, the spool interior, ports 60 and working chamber 32, return flow from the motor being by way of motor line 82, working chamber 31, spool recess 76 and exhaust chamber 34. During the above indicated state of the valve, check valve 64 is maintained unseated by the fluid pressure acting thereon. When the spool is moved to the right of the neutral position (Fig. 5, not shown) supply to the motor takes place from inlet 18, over spool recess 76 and into chamber 31 and motor line 82, whilst exhaust of line 84 takes place through line 84, chamber 32, ports 58 and 60, and chamber 35. In such circumstances, the inlet pressure augments the spring force acting on check valve 51 and so maintains it seated whilst the pressure of the return unseats check valve 64. In the event of cavitation taking place at the piston end of the motor 80, the resulting pressure differential across check valve 51 causes it to open and to allow some of the return flow to be fed into line 82, such flow taking place from chamber 32, through ports 58, through the spool interior, past check valve 51, through ports 47, and into chamber 31.
Patent GB-1390930-A (GB)
Title: Rotary piston positive-displacement machines
IPC: F02B53/00
Filed: 1971-11-11
Abstract: 1390930 Rotary positive-displacement machines NATIONAL RESEARCH DEVELOPMENT CORP 6 Nov 1972 [11 Nov 1971] 52384/71 Heading F1F A rotary positive-displacement machine, such as an internal combustion engine, of the nutating disc type comprises a U-sectioned annular splitring seal 25 having one limb located in the radial part of an L-shaped annular groove 21 positioned at the junction of the side wall 8 of a channel for receiving the disc and the interior surface of the casing 1, the other limb sealingly engaging the wall 8. The seal 25 thus forms a seal between the casing 1 and the hub 5 of the rotor, the crosshatched portion representing a cut-out from the seal, while ensuring that fluid cannot flow between working chambers via portion C, D in groove 21. The disc and its axially movable seals 11 are recessed to accomodate the latter mentioned seal limb.
Patent GB-1069496-A (GB)
Title: Improvements in or relating to torque transmitters
IPC: F16H47/12
Filed: 1963-12-04
Abstract: 1,069,496. Variable-ratio gears. INPOWER WORKS (PROPRIETARY) Ltd. Dec. 4, 1963 [Dec. 11, 1962], No. 52452/66. Divided out of 1,069,495. Heading F2D. The subject matter of this Specification is included in Specification 1,069,495.
Patent GB-1120376-A (GB)
Title: Miniature tape recorder
IPC: G11B5/00
Filed: 1966-11-24
Abstract: 1,120,376. Tape recorders. GRUNDIG E.M.V. ELEKTRO-MECHANISCHE VERSUCHSANSTALT, INH. MAX GRUNDIG. 24 Nov., 1966 [24 Nov., 1965], No. 52575/66. Heading G5R. In a tape recorder including a removable tape cassette 2 enclosing two spools 50, 51 which are spaced apart in the same plane, two driving gear wheels 15, 16 which are in constant mesh with one another are movable along respective spindles 17, 18 by the actuation of a control member (as shown, a rocker 21 operated by means of a manually operable slide 30 having a projecting knob 31) to be selectively coupled (as shown, by means of pins 55a, 56a) to respective ones of the two spool members which are thereby driven in opposite directions. A sound head 41 is carried on a spring-biased slidable member engaging, by means of an upstanding rib 43, a cam surface on the control slide 30, which controls the position of the sound head 41 and also of an erase head (61, Figs. 2 and 6 to 9, not shown) and of contacts (44) in the battery circuit. In operative position, the sound head 41 latches the cassette 2 in place on the recorder.
Patent GB-1432640-A (GB)
Title: Article handling apparatus
IPC: B66F19/00
Filed: 1973-11-13
Abstract: 1432640 Luffing arm apparatus MOTODA ELECTRONICS CO Ltd 13 Nov 1973 [14 Nov 1972] 52675/73 Heading B8H A luffing arm apparatus for lifting and lowering a load 37 comprises a support 10 with a support head 112 mounted thereon to rotate about the axis thereof. A first parallelogram linkage 14, 15, 16, 17 is pivoted at 18 to the head and a second parallelogram linkage 17, 22, 25, 26 is mounted at the end of the first linkage remote from the support head. Additional links 30 parallel to the links 14 are pivotally connected between the support head and a connection plate 26 of the second linkage. A control bore 35 is mounted on the free end of the second linkage and controls a motor 58 mounted on the link 16. A chain 40 passes over a sprocket 48 driven by the motor and has its opposite end secured to a mount 39 on the link 16. An intermediate portion the the chain passes around a sprocket 45 secured to a carriage 43 movable along a rail 42 whereby when the motor is operated to raise or lower the load the carriage moves along the rail so that the forces applied to the chain always act in a vertical direction. The load may be moved manually in a horizontal direction towards and away from the support 10 and in a horizontal direction about the axis of the said support.
Patent GB-1319326-A (GB)
Title: Cassette changer with a pause mode
IPC: H04N9/67
Filed: 1970-11-05
Abstract: 1319326 Colour television SONY CORP 5 Nov 1970 [15 Nov 1969] 52728/70 Heading H4F A primary colour video signal is derived at a collector terminal 16 of a first transistor 8 by applying a colour difference signal C-Y to the base of the first transistor 8 and a luminance signal Y to the base of a third transistor 12, the collector of which is connected at one end of a resistor 11 between the emitters of the first transistor 8 and of a second transistor 9, all three transistors 8, 9 and 12 being either of NPN or of PNP type to facilitate integration. The collector and base of the second transistor are both held at fixed D.C. potential, and means such as a current source 17, an impedance element or a video amplifier circuit are provided between earth and a point 20 between the resistor 11 and the emitter of the second transistor 9, with the result that the point 20 is held at a constant D.C. potential. A further resistor 10<SP>1</SP> may be provided between the transistor 8 and resistor 11, and this may be fixed or variable, as shown, to alter the saturation of the colour signal without affecting its hue. In a modification an additional transistor (21), Fig. 4 (not shown), forms a Darlington configuration with the second transistor 9, Fig. 3, to lower the impedance of the luminance signal path and thereby to improve the high frequency characteristics of the circuit. Three such circuits may be provided to deal with all three colour difference signals, and in this case the three second transistors (9R, 9G, 9B), Fig. 5 (not shown), may be reduced to a single second transistor (9), Fig. 6 (not shown), common to all three colour component circuits. The saturations of the three primary colour signals may be independently variable.
Patent GB-1255338-A (GB)
Title: Sorting separators actuated by metal detectors
IPC: B07C5/36
Filed: 1969-10-28
Abstract: 1,255,338. Separating tramp metal. PULSOTRONIC MERTEN K.G. Oct. 28, 1969 [Nov. 20, 1968; Sept. 6, 1968], No. 52779/69. Heading G1N. A metal detector controls a pneumatic, hydraulic or electromagnetic motor to swing a tube, pivoted below a hopper, from an "accept" to a "reject" position. The pivot may be formed by a flexible bellows at the top of the tube Fig. 5 (not shown).  As described an inductive detector having a coil round the neck of the hopper controls a solenoid operating against spring bias to swing the tube over "trouser-leg" opening at the bottom of the separator housing.
Patent GB-1360748-A (GB)
Title: Reflex cameras
IPC: G03B19/12
Filed: 1972-11-15
Abstract: 1360748 Reflex camera POLAROID CORP 15 Nov 1972 [6 Dec 1971] 52804/72 Heading G2A A folding bellows camera for successively exposing individual film units in a container 38 has a reflex viewing mirror 48 hinged (56 and 74) at one end to an exposure frame 128 for rotation between viewing and exposure positions and held in the viewing position by means situated at or near one side of mirror 48 and consisting of (a) resilient retaining means acting on mirror 48 through a shaft 76 spaced a small distance from the rotational axis 72 and (b) a single stop 136 which engages a recess 134 in frame 128. Mirror 48 comprises a carrier supporting a Fresnel-type mirror 52 on its upper side and a planar mirror 54 on its lower side. Rotation of mirror 48 is effected by a motor 60 (having a slip clutch 66) through a low rate torsion spring 100, bell crank 86, draw-down link 80, and shaft 76. Energy absorbed by an over-ride spring 112 after rotation of mirror 48 to viewing position provides the resilient retaining means.
Patent GB-1245355-A (GB)
Title: A metallurgical furnace
Inventor: NOLTING PETER
IPC: F27D11/02
Filed: 1969-10-30
Abstract: 1,245,355. Resistance-heated furnaces. VEREINIGTE ALUMINIUM - WERKE A.G. 30 Oct., 1969 [8 Nov., 1968], No. 53322/69. Heading H5H. The heating elements 3 of a metal melting furnace comprise straight bands of rectangular cross-section disposed horizontally in the furnace interior 4 and supported by the walls adjacent the roof, the bands having a depth greater than their width and being disposed, width up, in the furnace. The elements 3 are connected in series by connectors 2 inserted in the mounting openings 1 of the furnace wall and welded to the element ends. Each seriesconnected group of eight elements 3 has its own heavy current/low voltage transformer 5, which may be fixedly mounted on the furnace. The surfaces of the bands are made smooth so that splashes of molten metal do not remain thereon.