baber/WOPTO huggingface dataset:
Patent GB-1120342-A (GB)
Title: Improvements relating to synchros and the like
Inventor: CATTON MICHAEL
IPC: G08C19/46
Filed: 1964-12-11
Abstract: 1,120,342. Indicating angular position. PLESSEY - UK Ltd. Nov. 30, 1965 [Dec. 11, 1964], No.50450/64. Heading G1N. The angular position of the shaft of a device, e.g. a resolver synchro, which generates a plurality of sinusoidal alternating voltages which vary with shaft angle, is indicated by deriving from the alternating voltages a first digital output indicative of the quadrant containing the shaft angle, and also deriving from the alternating voltages direct voltages, the ratio between which varies linearly with shaft angle, which ratio is converted into a second digital output. As shown, the alternating output voltages are converted by phase detectors PD1, PD2 to two direct voltages having polarities which depend on the shaft angle, and these voltages are converted by trigger circuits TC into outputs of constant amplitude, the four possible polarity relationships of which indicate the quadrant containing the shaft angle. The alternating voltages are also passed to synchronous rectifiers R1, R2 providing outputs |E sin#| and |E cos #| which are supplied to a combining network CN, to which is also supplied a signal |E| from rectifier R3 connected to a constant amplitude network CA. The combining network generates voltages V=E (1+a) [|cos #| - | sin # |] and V ref = E [a+l cos #|+|sin 6|], a being constant. The ratio V/V ref  is converted to digital form and is stated to be linearly proportional to shaft angle within each quadrant. Rectifiers R1, R2 receive reference inputs from a logic circuit which feeds the larger of the two alternating signals to the rectifiers either directly or inverted, depending on the quadrant involved. It is suggested that diodes may be used at R1, R2, the comparator and logic circuits being omitted. Circuit CA is a phase shifting network which provides an output of variable phase, and amplitude independent of shaft angle, from the alternating voltage inputs. Alternatively the constant amplitude signal may be obtained by feeding the outputs of R1 and R2 to squaring circuits and summing the outputs. The device may be made self-checking by connecting a threshold circuit to the V ref  output and causing an alarm to operate if the output deviates by more than a predetermined amount from its nominal value. The alarm also indicates failure of the circuit. If the input device produces more than two alternating voltages these may be converted to two such voltages by means of a scott connected transformer.
Patent GB-1255670-A (GB)
Title: Pharmaceutical suspension and method of stabilizing
Inventor: HUNTER WILLIAM WARD JR
IPC: A61K9/00
Filed: 1969-10-14
Abstract: 1,255,670. Diagnostic scanning compositions. W. W. HUNTER JNR. 14 Oct., 1969 [14 Oct., 1968], No. 50536/69. Heading A5B. [Also in Division G6] An aqueous suspension of particles of a scanning agent is stabilised by addition thereto of a water-miscible aliphatic polyhydric alcohol having from 3 to 7 carbon atoms, e.g. glycerol, lyxitol, xylitol, sorbitol, dulcitol, mannitol or galactitol. Reference is made to suspensions containing: radioiodinated albumin, and sulphur, strontium carbonate and iron hydroxide which have been labelled with a radioactive isotope (Tc<SP>99</SP>).
Patent GB-1222827-A (GB)
Title: Templates
Inventor: MANN EDWARD CHARLES
IPC: C23F1/02
Filed: 1968-02-07
Abstract: 1,222,827. Etching. BRITISH AIRCRAFT CORP. Ltd. 1 May, 1969 [7 Feb., 1968], No. 50664/67. Heading B6J.  A method of making a template comprising a sheet of metal having a peripheral edge or a groove corresponding with the periphery of an article to be manufactured, consists of (1) making a line drawing layout of an article on a transparent stable material, (2) spraying a photo-stencil emulsion on to a sheet of brass, (3) exposing the emulsion to light through the layout, (4) applying to the emulsion a liquid developer which removes the emulsion in the areas protected from the light by the lines on the layout, (5) placing the brass sheet in an etching bath containing ferric chloride dissolved in alcohol and sulphonated castor oil so as to be etched in those areas where the emulsion has been removed, and (6) immersing in water to remove the etchant and the emulsion. The resulting product is a brass sheet having a surface into which have been etched grooves corresponding to the lines of the layout. In a second method, a sheet of aluminium alloy coated with a plastic, which is hardened by exposure to ultra-violet radiation, is so exposed through the same layout and treated with a dilute solution of caustic soda which removes the unexposed parts of the plastic. The sheet is then rinsed with water, air-dried, and further hardened with ultra-violet radiation. The resulting product is a sheet of aluminium alloy coated on one side with a layer of hardened plastic having lines etched in it corresponding to the lines of the layout. The product of either method is used as a guide for the stylus of a copy-cutting machine, the cutter of which cuts out the required template corresponding to the layout drawing, for later use.
Patent GB-1450194-A (GB)
Title: Calibrating a liquid scintillation counter
IPC: G01T1/20
Filed: 1973-11-02
Abstract: 1450194 A method of calibrating a liquid scintillation counter and a device for use in the calibration WALLAC OY 2 Nov 1973 [3 Nov 1972] 51114/73 Headings G1A and G1B A method of calibrating a liquid scintillation counter comprises supplying in a vial prior to measurement, a measured amount of radio-active substance 2, deposited on a carrier 1 together with the scintillation solution, in which it is soluble. A measured amount of substance 2 is first dissolved in a measured amount of solvent, which is then evaporated, leaving it deposited on carrier 1. If the sample to be measured is water soluble, substance 2 is radio-actively marked saccharos. If it is soluble in a non-polar solvent, it is radioactively marked tripalmitate on tristearate. Carrier 1 is of glass, plastics or metal and preferably transparent. Carriers 1 may be stacked, wall 4 keeping apart substances 2 in adjacent carriers.
Patent GB-1098474-A (GB)
Title: Film-forming compositions containing a cis unsaturated fatty acid amide
IPC: C08J7/054
Filed: 1964-12-16
Abstract: Compositions of matter comprise a high molecular weight film-forming thermoplastic substance and a compound of formula RCONHCH2CHOHCH2OH where RCO is the acyl group of an unsaturated fatty acid of 12-24 carbon atoms and having a cis configuration at at least one ethylenic double bond, R containing C and H only, or mixtures of these, with or without the corresponding saturated compounds.  The composition is preferably in the form of a film or sheet having the amide incorporated therein or as a layer thereon.  The thermoplastic substance may be a cellulose ester, polycarbonate, polyester, polyamide, polyolefine or other ethylenic polymer, e.g. derived from acrylonitrile, methacrylonitrile, styrene, vinyl chloride, vinylidene chloride, vinyl acetate, N-isopropylacrylamide, ethylene, propylene, butene, butadiene or isoprene, or propylene-butene copolymers.  The compositions of the invention have improved antifogging and antistatic properties, and may be used as films for packaging, e.g. food, or moulded or cast, e.g. into sideboards.ALSO:Compounds of the formula RCONHCH2CHOHCH2OH where RCO is the acyl group of an unsaturated fatty acid of 12-24 carbon atoms and having a cis configuration at at least one ethylenic double bond, R containing C and H only, or mixtures of these, with or without the corresponding saturated compounds, are prepared by reacting NH2CH2CHOHCH2OH with RCOOH or esters or triglycerides thereof, e.g. natural products; or by reacting RCOCl with 5-chloromethyl-2-phenyloxazolidone, hydrolysing with HCl, heating with water, and treating with KOH solution.  The products are used in plastic compositions (see Division C3).ALSO:Moist food such as meat is packed in foil prepared from a high-molecular weight film-forming thermoplastic substance containing, or coated with, a compound of formula RCONHCH2 CHOHCH2 OH, where RCO is the acyl group of an unsaturated fatty acid of 12-24 carbon atoms and having a cis configuration at at least one ethylenic double bond, R containing C and H only, or mixtures of these, and with or without the corresponding saturated compounds (see Division C3).ALSO:A high-molecular weight thermoplastic film e.g. of polycarbonate, polyester, polyamide, cellulose ester, polyolefin or other poly-ethylenic compound is coated, e.g. from methanol solution, with at least one compound RCONHCH2 CHOH CH2 OH, where RCO is the acyl group of an unsaturated fatty acid of 12-24 carbon atoms and having an cis-configuration at at least one ethylenic double bond, R containing C and H only; corresponding saturated compounds may also be present.
Patent GB-1077140-A (GB)
Title: Optical device
IPC: G02B17/06
Filed: 1964-12-16
Abstract: 1,077,140. Optical apparatus. BECKMAN INSTRUMENTS Inc. Dec.16, 1964 [Dec.16, 1963], No. 51207/64. Heading G2J. An optical device for interposition between radiation source 12 and a detector 13 comprises means for collimating radiation from the source and directing it on to a sample surface 19, the sample surface being movably mounted for varying the angle of incidence of radiation on said surface, and reflecting means which receives and focuses radiation from the sample surface, a part 20 of the reflecting means being coupled to the sample surface such that the source image is focused at a point fixed with respect to the detector regardless of the angle of incidence on the sample surface. The sample surface 19 being planar, the part 20 comprises a reflecting surface mounted at right angles to the surface 19 so that collimated light reflected from the surface 19 is always projected along the same path by the reflector 20 for any angle of incidence on the sample. The collimating device comprises a concave mirror 17. Radiation reflected from the surface 20 is refocused by a concave mirror 24.- The two surfaces 19, 20 are mounted in a rigid frame Fig. 4 (not shown) which is rotatable about the line of intersection of the two surfaces to vary the angle of incidence. In another embodiment the two surfaces 19, 20 are constituted by two faces of a right-angled prism, the sample to be tested being applied to one of these faces. In order to avoid movement of the source image with change in angle of incidence, rotation of the prism must be accompanied by linear movement of the prism perpendicular to the axis of rotation and in the plane of the surface 20.
Patent GB-1399817-A (GB)
Title: Pilot operated valve
IPC: F16K24/02
Filed: 1971-11-08
Abstract: 1399817 Fluid-pressure servomotor systems WALTER KIDDE CO Ltd 3 Nov 1972 [8 Nov 1971] 51844/71 Heading G3P [Also in Division F2] In a valve for releasing gas from a pressurized source, e.g. a cylinder, a main closure 7, Fig. 1, is normally retained against its seat 5 by a spring 16 and by inlet pressure communicated to a chamber 11 via clearance around the closure 7. However, manual depression of plunger 20 causes rod 21 to open a pilot closure 14 to release the pressure in chamber 11 and to neutralize the action of spring 16, thereby allowing the pressure acting on the peripheral region of seating surface 6 of the closure 7 to open the latter. The rod 21 may be moved by a piston 19 by supplying pressure fluid, e.g. air, through a connection 22 to cylinder 18, or by subjecting the piston to pressure produced by an electrically-detonated explosive cartridge, e.g. for automatic release of CO 2  in fire extinguishers. The valve body may house a diaphragm (25), Fig. 2 (not shown) retained by a screwed plug (24) and communicated with inlet pressure so as to rupture when the latter becomes excessive and vent it to the outlet. In another embodiment, Fig. 3 (not shown) the pilot closure actuating-rod is operated by cam-action via a lever (130) which is associated with a safety pin (132) for preventing inadvertent operation. Moreover, the pilot closure is arranged to abut an inturned lip (133) on the main closure after being partially opened by the pressure-actuated piston (19') so that the final opening movement additionally moves the main closure in the opening direction.
Patent GB-1095157-A (GB)
Title: Novel thiazole derivatives and a process for the preparation thereof and of allied derivatives
IPC: C07D309/12
Filed: 1964-12-17
Abstract: Compounds of the general Formula (I) <FORM:1095157/C2/1> wherein R1 represents a hydrogen atom or a lower alkyl group, R2 represents a hydrogen atom or a lower alkyl, lower alkenyl, lower alkynyl, aryl or lower aralkyl group, R3 represents a hydroxy group or R2 and R3 each represent a lower alkoxy group, and R4 represents a hydrogen atom or an acyl group) are prepared by condensing a compound of the Formula (II) <FORM:1095157/C2/2> (wherein R10 represents a hydrogen atom or a lower alkyl group and R5 represents a tetrahydropyranyl, tetrahydrofuranyl, vinyl, allyl or benzyl group) with a compound of the Formula (III) <FORM:1095157/C2/3> (wherein R6 represents a halogen atom), cleaving off the R5 group if necessary, if desired oxidizing the condensation or cleavage product as the case may be and reacting the oxidation product either with a halide of the Formula (IV) R20-Mg-R7 (wherein R20 has any of the values accorded to R2 except that of a hydrogen atom and R7 represents a halogen atom) or a lower alkyl orthoformate, an alkanol containing not more than seven carbon atoms or an acetone di-(lower alkyl) acetal in the presence of a strong acid and, also if desired, acylating, deacylating or re-acylating the condensation, cleavage or reaction product as the case may require.  The lower alkyl, alkenyl, alkynyl and alkoxy groups and the alkylene residue of the lower aralkyl groups each contain up to seven carbon atoms.  The preparation of starting materials of Formula (II), glycollic acid nitrile, glycollic and lactic acid nitrile tetrahydropyranyl-(2) ethers, 2 - formyl - 4 - methyl - 5 - (b  - acetoxyethyl) thiazole and its picrate and 2-acetyl-4-methyl-5-(b  - acetoxyethyl) thiazole and its p-nitrophenyl-hydrazone is described.
Patent GB-1392570-A (GB)
Title: Inertia-responsive switching device
IPC: H01H35/14
Filed: 1972-11-14
Abstract: 1392570 Inertia switches NISSAN MOTOR CO Ltd 14 Nov 1972 [16 Nov 1971 31 Dec 1971 8 Jan 1972 (2)] 52501/72 Heading H1N In an inertia responsive switch the movable mass such as a conductive ferro-magnetic pendulum 68, Fig. 9, is permanently subjected to one restraining force as from a permanent magnet 76 and selectively subjected to a second restraining force as from an electromagnet 82 whereby the response characteristics of the switch may be varied. On impact the pendulum 68 moves to engage a contact 72 to close a circuit 74, 74<SP>1</SP>. In the example applied to a switch for controlling the actuation of crash restraint means in a motor vehicle the electromagnet 82 is placed in circuit with a normally closed speed responsive switch (46) Fig. 3 (not shown) whereby it is in circuit at low speed only to reduce the sensitivity to collision. The electromagnet is this case is disconnected at high vehicle speeds to increase the sensitivity. In modifications the electromagnetic may operate in opposition to the magnetic field if the permanent magnet and is in circuit with a speed responsive switch which is normally open at low vehicle speeds and closes at higher speeds to increase the sensitivity to impact. In another modification the cores of the electromagnet 102 Fig. 10 and of the permanent magnet 98 form a closed magnetic circuit with a ferromagnetic conductive ball contact 96. In a further modification a conductive ferromagnetic ball 142 Fig. 13 is normally urged away from a conductive contact 130 in the restraint actuating circuit 136, 136<SP>1</SP> by a conductive coil spring 132 in the same circuit. The sensitivity of the device is reduced by an electromagnet 138a, 138b which acts to assist the spring 132 in holding the ball 142 at low vehicle speeds. The speed responsive switches may be arranged in parallel with normally closed switches which rupture to open circuit in the event of a collision. The speed responsive switches are thereby rendered ineffective un less the collision impact is sufficiently high. Examples of suitable rupturable switches comprise sealed glass tubes 144 Fig. 16 containing silver coated frangible glass rods or a small gauge conductive wire in an inert gas are described. These may be mounted in a flexible cover 152 from which terminal wires 148, 148<SP>1</SP> extend.
Patent GB-1386569-A (GB)
Title: Pump drive for hydrostatic drive loaders
IPC: B60K17/10
Filed: 1973-11-13
Abstract: 1386569 Hydrostatic drives CATERPILLAR TRACTOR CO 13 Nov 1973 52670/73 Heading B7H In a vehicle an engine 12 mounted on a frame 10 has a drive shaft 13 detachably connected to a hydrostatic pump in a removable pump compartment 14, there being conduits 32 connecting the pump to a hydrostatic motor 33 for driving the ground engaging means of the vehicle. As shown in Fig. 2, a pair of swivel-type reversible and variable displacement pumps 18 are driven from the engine shaft 13 which receives splined shaft 25 of a gear pair 19, 20 which is connected to a gear pair 21, 22 by a drive shaft 23, and a shaft 24 connects gear 22 to pump 18. A shaft 23a connects gear 21 to a replenishing pump 27 and an implement pump 28. Gears 21, 22 are supported in bearings 35 disposed within pillow blocks 30 secured to upstanding brackets (37), Fig. 3 (not shown), by bolts 38. A similar bearing arrangement supports the gears 19, 20.
Patent GB-1482505-A (GB)
Title: Roller-conveyors
IPC: B65G39/04
Filed: 1975-12-29
Abstract: 1482505 Rollerways TRANSFORM PLANUNGS-UND VERTRIEBS GmbH 29 Dec 1975 [15 Jan 1975] 52946/75 Heading B8A A rollerway comprises a plurality of angularly adjustable rollers each carrying at one end a bevel gear 11 which meshes with a bevel gear 12 on a flexible drive shaft 13. As shown, the other end of each roller is carried by a bearing 17 received in a housing having a part spherical surface to permit angular adjustment, The rollers may comprise a plurality of adjacent discs 19.
Patent GB-1303560-A (GB)
IPC: A61K/
Filed: 1971-11-16
Abstract: 1303560 Equine strangles vaccine RICHARDSON-MERRELL INC 16 Nov 1971 [20 Jan 1971] 53199/71 Heading A5B A method of preparing a vaccine effective against virulent strains of S. Equi comprises culturing virulent S. Equi bacteria under aerobic conditions, separating the bacterial cells from their culture medium, extracting a proteinaceous antigen effective against S. Equi by heating the bacterial cells in an acid solution at pH 1.5 to 6.0, adjusting the hydrogen ion concentration of the solution to above 7.0, removing insoluble material and adjusting the pH to below 7.0. The antigen may be adsorbed on aluminium hydroxide before use.
Patent GB-1542648-A (GB)
Title: Drawing of multiple gauge metal strip
IPC: B21C37/02
Filed: 1976-12-21
Abstract: A sectional metal bar with a surface of stepped cross-section is produced from an essentially rectangular metal bar by preliminary forming. This preformed sectional bar is drawn through a drawing die with the use of hydrodynamic lubrication, the cross-sectional width of the bar being retained and its thickness undergoing a drawing reduction of at least 30% uniformly distributed over the cross-section. The drawing apparatus comprises a lubricant tank (12), through which the bar (10) runs, a hydrodynamic region (17) adjoining the latter in the drawing direction, and a reduction section (18) following the said region and containing the drawing die. It is thereby possible to produce a sectional bar with a high accuracy in a shorter production time. <IMAGE>
Patent GB-1460397-A (GB)
Title: Magnetic couplings
IPC: H02K49/00
Filed: 1974-12-10
Abstract: 1460397 Magnetic couplings USUI KOKUSAI SANGYO KK 10 Dec 1974 [17 June 1974] 53364/74 Heading H2A In a magnetic coupling comprising a permanent magnet rotor 3 and a hysteresis rotor 2, a magnetically conductive member 4 is mounted for rotation with the magnet rotor 3 but is movable relative to that rotor into a position wherein it short circuits the flux to prevent torque transmission. The magnet rotor shown comprises a plurality of angularly spaced, axially magnetized magnets M and the member 4 comprises an equal number of angularly spaced iron pieces 5, Fig. 2 (not shown). The member 4 is angularly movable relative to rotor 3 between a first position in which the iron pieces are axially aligned with magnets M (maximum torque transmission) and a second position in which each iron piece (5) bridges two adjacent magnets and so short circuits the flux (zero torque transmission). The position of the member 4 shown is controlled by a bi-metallic strip 8 to make the transmission of torque dependent on ambient temperature. Figs. 9 to 11 (all not shown) illustrate an embodiment having a cylindrical air gap.
Patent GB-1281290-A (GB)
Title: An improved connecting rod for internal combustion engines
IPC: F16B31/06
Filed: 1970-11-11
Abstract: 1281290 Connecting rods; bolting DR ING hcF PORSCHE KG 11 Nov 1970 [11 Dec 1969] 53618/70 Headings F2H and F2T The big-end bearing cap 3 of a connecting rod 1 is connected to the foot 2 of the rod by tensioning means, e.g. bolts 6, provided with convex support surfaces 13, 15 supported in corresponding concave counter-surfaces 11, 16 in at least one of the foot and cap. The mating surfaces 13 and 11 of a washer 10 for the nut 9 and the foot 2 respectively are part-spherical and the mating surfaces 15 and 16 of the bolt head 14 and the cap 3 respectively are part-cylindrical. The bolts may be screwed into the foot or cap, the heads being provided with partspherical surfaces or co-operating with washers having part-cylindrical surfaces. Alternatively, the bolts may be integrally cast with the cap or foot and co-operate with nuts having partspherical support surfaces or with nuts and washers, the latter having part-spherical or partcylindrical support surfaces.
Patent GB-1118920-A (GB)
Title: Dibenzocycloheptene derivatives
IPC: C07C233/00
Filed: 1965-12-21
Abstract: Novel compounds of the formula <FORM:1118920/C2/1> wherein X represents a C1- 5 alkoxy, trifluoro methyl, C1- 5 alkylsulphonyl, C1- 5 alkylthio or di-(C1- 5 alkyl) sulphamoyl radical and the dotted line indicates an optional double bond are prepared by hydrating the corresponding 5-cyano-compounds.  Therapeutic compositions with anticonvulsive properties comprise compounds of the above formula together with carriers, and may be in forms suitable for oral or parenteral administration.
Patent GB-1413501-A (GB)
Title: Shoe upper conforming machines
IPC: A43D25/18
Filed: 1971-11-23
Abstract: 1413501 Boots &c. BRITISH UNITED SHOE MACHINERY CO Ltd 22 Nov 1972 [23 Nov 1971] 54301/71 Headings B2L and L26H1 A shoe upper conforming machine comprises a shoe rest 16 for supporting the shoe, bottom down; a horse-shoe shaped adhesive-applying member 2 for applying adhesive to the marginal portions of the insole around the toe, forepart and joint regions and wipers 44. The adhesive applying member 2, which may have a reticulated surface to impede draining away of adhesive is arranged to occupy an initial position separated from the insole in which it receives adhesive from supplying means (not shown). As member 2 is moved towards the insole, it is tilted so that its heelward end makes contact first. Grippers 38, 39, 41 may be provided their construction being as described in Specification 1413503. The adhesive-applying member 2 may be as described in Specification 1413504.