baber/WOPTO huggingface dataset:
Patent GB-1186062-A (GB)
Title: Benzonaphthyridine Derivatives
IPC: C07D471/18
Filed: 1967-03-13
Abstract: 1,186,062. Benzonaphthyridines. AMERICAN HOME PRODUCTS CORP. 13 March, 1967 [14 March, 1966], No. 50643/69. Divided out of 1,186,061. Heading C2C. Novel benzonaphthyridines of the general formula wherein R<SP>1</SP> is a hydrogen or halogen atom or a nitro, alkyl or alkoxy group; R<SP>3</SP> is a hydrogen atom or an alkyl, phenyl, alkylphenyl, halophenyl, alkoxyphenyl, benzyl, halobenzyl, alkylbenzyl or alkoxybenzyl group; and R<SP>5</SP> is a hydrogen atom or a phenyl, halophenyl, alkylphenyl, alkoxyphenyl, pyridyl, furyl or thienyl group, and pharmaceutically acceptable acid addition salts thereof are prepared by reaction of an aniline derivative and a 3-quinuclidinone (or an acid addition salt thereof) of the respective general formulµ followed optionally by saliflcation of the product with a pharmaceutically acceptable acid. Pharmaceutical compositions having central nervous system depressant activity comprise, as active ingredient a benzonaphthyridine of the first general formula above or a pharmaceutically acceptable acid addition salt thereof, together with a pharmaceutically acceptable carrier, and may be administered orally or parenterally.
Patent GB-1365861-A (GB)
Title: Rotor shaft supports for dynamo electric machines and methods of manufacturing them
IPC: H02K5/15
Filed: 1971-11-01
Abstract: 1365861 Bearings SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 1 Nov 1971 [2 Nov 1970] 50647/71 Heading F2A [Also in Divisions H2 and B3] A method of making a rotor shaft support member for a dynamo-electric machine includes pressing sheet metal to form a hub portion 4 having a cylindrical bore, a tapering body portion 2, 3 extending radially and axially outwardly of the hub-like portion the body portion having an annular abutment surface in a plane D<SP>1</SP> normal to the bore axis and forming in a press a circumferential locating surface 7 coaxial with the bore axis. A metal blank is punched from strip and in one or more pressing operations the portions 2, 3 and 4 and a flange 6 are formed. The face A<SP>1</SP> of the flange is parallel with a radial plane A<SP>11</SP> extending through a bearing 5. The flange is punched to form the circumferential locating surface 7, which may be provided with slots 37, Fig. 3. The punching tool may engage the hub portion 4 to ensure that the surface 7 is coaxial with the bearing. In an alternative embodiment, Fig. 2, the hub itself forms part of an outer ball race 20, which may be machined after the pressing operation. The support is placed against a stator abutment surface 31 and is located axially by the annular abutment surface and radially by the surface 7. It is secured by an adhesive 36 which fills the slots 37 thereby preventing angular displacement of the support.
Patent GB-1374818-A (GB)
Title: Preparation of 1-alkyl-2-aminomethyl-pyrrolidines
Inventor: KUENZY F
IPC: C07D207/09
Filed: 1971-11-04
Abstract: 1374818 1 - Alkyl - 2 - aminomethylpyrrolidines FRATMANN SA 4 Nov 1971 [10 Nov 1970] 51225/71 Heading C2C 1 - Alkyl - 2 - aminomethylpyrrolidines are prepared by reacting a 1-alkyl-2-pyrrolidine in a solvent, e.g. benzene, toluene or xylene, with phosgene at - 5 to + 10 C.; reacting the resultant product, optionally after isolation and purification of the same, with an alkali metal alcoholate at 0 to -20C. and then with nitromethane at room temperature; and finally reducing the resultant nitromethylene group to an aminoethyl group. The 1-alkyl-2-nitromethylenepyrrolidine may also be isolated and purified before the reduction and the latter is preferably carried out (i) by catalytic hydrogenation in an inert solvent, e.g. Pt black, Rh on Al 2 O 3 , Pd on charcoal and Raney Ni in water, methanol, ethanol, isopropanol, butanol, tetrahydrofuran or dioxane or (ii) by hydrogen produced in situ by the reaction of an acid on a metal. In the first step of the process the phosgene may be first dissolved in the solvent and then the solution formed added to the 1- alkyl - 2 - pyrrolidine. The 1 - alkyl - 2- aminomethyl pyrrolidine may be converted to a salt by the addition of an acid, e.g. HCl, HBr, H 2 SO 4 , oxalic acid, tartaric acid, maleic acid or picric acid. Examples of the alkyl group in the product are methyl, ethyl (see example), propyl, isopropyl and isobutyl groups. Reference has been directed by the Comptroller to Specification 1,236,842.
Patent GB-1170177-A (GB)
Title: Switching Arrangement for Firing Detonators.
IPC: G05B19/07
Filed: 1967-11-13
Abstract: 1,170,177. Circuit arrangements for firing detonators. WASAG-CHEMIE A.G. 13 Nov., 1967 [12 Nov., 1966], No. 51530/67. Heading H2H. A circuit arrangement for firing a plurality of detonators with a predetermined time delay between each firing comprises thyristors T 1 , T 2  respectively in series with detonator terminals II, III, the control electrode of T 2  being connected to the series circuit T 1 , II through a time delay circuit P 1 , C 2 , a four-layer diode V 1  and a capacitor C 3 . Closure of a switch I makes T 1  conductive to fire the first detonator and charge capacitor C 2  which, after a time delay determined by the setting of adjustable resistor P 1 , makes T 2  conductive to fire the second detonator. The sequence is repeated for any further thyristor, detonator, time delay circuits in the chain. The voltage source U may be common to the whole chain or each thyristor may have its own separate source, in each case comprising charged capacitors. The capacitor C 2  may be replaced by several parallel connected capacitors selectible by a multi-position switch, Fig. 2 (not shown).
Patent GB-1369107-A (GB)
Title: Hoppers
IPC: A01C15/00
Filed: 1972-11-08
Abstract: 1369107 Compartmented hoppers INTERNATIONAL HARVESTER CO OF GREAT BRITAIN Ltd 8 Nov 1972 51559/72 Heading B8S [Also in Division A1] A hopper 1, for a combined seed and fertilizer drill, is divided into two chambers by a partition 6 comprising panel members 8, 9 rigidly but releasably connected to one another in juxtaposition. Fig. 2 shows one arrangement of the members 8, 9 giving a particular volume ratio of the two chambers. The members 8, 9 may be unbolted, removed from the hopper 1 and remounted to give a different ratio as shown in Fig. 3. In a further arrangement of the members 8, 9 a single large chamber is provided, Fig. 4 (not shown). In this embodiment rotation of the members 8, 9 is not required in altering the volume ratio of the two chambers, but other embodiments (not shown) require such rotation. The hopper 1 is divided into three sections by transverse walls (4), (5), Fig. 1 (not shown).
Patent GB-1361010-A (GB)
Title: Single-phase asynchronous motor
IPC: H02P1/42
Filed: 1971-11-09
Abstract: 1361010 Control of A.C. motors CALOR 9 Nov 1971 [30 Dec 1970] 52062/71 Heading H2J A single phase asynchronous motor, having a short-circuited rotor R and split poles carrying a stator winding formed by symmetrical halfportions S1, S2 and an auxiliary winding formed by symmetrical half-portions Bl, B2, is started by means of a bi-directional semiconductor switch Tr whose firing current is substantially proportional to the stator current, so that the switch Tr is fired to short-circuit the portions B1, B2 during starting of the motor, but remains open during normal motor operation corresponding to a stator current insufficient to fire the switch. The firing current may be derived from the slider of a potentiometer P connected in the stator winding circuit, from the slider of a potentiometer coupled to the stator circuit through a current transformer, Fig. 2 (not shown) or from the sliders, via respective oppositely-poled diodes, of two potentiometers connected in parallel across a resistance in the stator circuit, Fig. 3 (not shown) or across current transformer coupling to the stator circuit, Fig. 4 (not shown). If a lower starting torque is acceptable, the switch Tr may be replaced by a uni-direotional semi-conductor switch whose control electrode is coupled through a diode to the slider of a potentiometer which is in the stator circuit, Fig. 5 (not shown), or is coupled thereto through a current transformer, Fig. 6 (not shown). A final modification, Fig. 7 (not shown), uses a pair of oppositelypoled parallel-connected uni-directional switches whose control electrodes are coupled through diodes to the sliders of respective potentiometers transformer-coupled to the stator circuit. The semi-conductor switch may be protected by a fuse F and/or a parallel-connected RC circuit and/or by suitable choice of the impedance of the auxiliary winding B1, B2.
Patent GB-1370806-A (GB)
Title: Signal amplifier provided with a protective circuit
IPC: H03F1/56
Filed: 1971-11-12
Abstract: 1370806 Protecting signal amplifiers PIONEER ELECTRONIC CORP 12 Nov 1971 [16 Nov 1970] 52768/71 Heading H3T [Also in Division H2] In a signal amplifier 1 provided with a protective circuit 2 for use in protecting the output stage of the amplifier and/or its load impedance from an abnormal condition represented by a difference between the form of the input signal and the output signal of the amplifier, the protective circuit includes a differential amplifier 21 arranged to produce an output control signal in response to a difference between signals applied to its inputs, an attenuation circuit 22 having an attenuation factor of the same magnitude as the amplification factor of the signal amplifier, and means 24 responsive to a condition of the signal amplifier at which clipping of the output signal occurs, for reducing the sensitivity of the differential amplifier. The input of the signal amplifier is connected to one input of the differential amplifier, the output of the signal amplifier is connected to the input of the attenuation circuit, and the output of the attenution circuit is connected to the other input of the differential amplifier, so that the differential amplifier responds to an abnormal condition to produce an output control signal and the arrangement is such that the sensitivity reducing means 24 when operative sufficiently reduces the sensitivity of the differential amplifier that the differential amplifier does not respond to clipping of the output signal of the signal amplifier. The input and output signals of the amplifier 1 are in phase and as the attenuation factor of the attenuator 22 is of the same magnitude as the amplification factor of the amplifier 1 the differential amplifier is operated in a balanced state. If the D.C. potential of the output line L 2  varies due to some defect of the amplifier 1 the differential amplifier 21 becomes unbalanced and operates switching circuit 23 which opens contact Y to protect the loud-speaker SP. Similarly the amplifier 1 is protected against short circuit of the loud-speaker which would cause unbalance of the differential amplifier and opening of the contact Y. When the switching circuit 23 is operated it returns to its unoperated state after a few seconds so that contact Y is again closed. If the differential amplifier is still in an unbalanced state the contact Y is opened again. When a large input signal is applied to the amplifier 1 so as to cause a clipped output signal at L 2  the sensitivity control circuit 24 operates to reduce the sensitivity of the differential amplifier 21. This allows a potential difference to exist between the inputs fed to the transistors T r1 , T r2  whilst the differential amplifier 21 is retained in the balanced state so that the loudspeaker is driven. The input terminal of the sensitivity control circuit 24 may be connected to any signal line of the amplifier. The protective circuit may operate to disconnect the power source.
Patent GB-1194820-A (GB)
Title: Operation of Fused Salt Electrolytic Cells to Produce Aluminium
Inventor: DILLER ISAAC MENDEL
IPC: C25C3/06
Filed: 1967-04-03
Abstract: 1,194,820. Electro-winning aluminium. I.M. DILLER. April 3, 1967 [April 4, 1966], No.53037/69. Divided out of 1,193,981. Heading C7B. In a method of electro-winning aluminium in which the melt is activated, e.g. by one or a series of high voltage electrical pulses, to produce a lasting increase in conductivity, whereby the yield of metal per kWh for a given set of operating conditions is increased, the cell is operated at an increased rate of production and excess heat energy is extracted from the melt. By extracting the heat, the temperature of the melt may be controlled. Heat may also be extracted from the electrical conductors which may carry currents of 3 meg-amps under an applied cell voltage of 5 volts. The heat extracted may be utilized at least in part in generating of the electrolyzing energy. The heat extraction may be effected by attaching heat exchangers to the walls of the cell and to the electrical conductors and the heat exchange fluid may be molten sodium.
Patent GB-1475960-A (GB)
Title: Fibrous building boards or panels
IPC: E04D3/18
Filed: 1975-12-30
Abstract: 1475960 Coated building boards H H GUSTAFSON 30 Dec 1975 [9 Jan 1975] 53091/75 Heading B2E A fibrous building board or panel is coated on the face intended to face the weather exterior with a water based paint while the paint is still wet a surface active hydrophobic agent is added so that after drying of the paint, the layer exhibits cracks which allow water vapour to diffuse from the board or panel to the weather exterior whilst liquid water tends to be prevented from penetrating into the board or panel from the weather exterior. Suitable hydrophobic agents include wax which may be sprayed on as electrically charged particles, silicone oil or a fat emulsion.
Patent GB-1479760-A (GB)
Title: Dumbbell
IPC: A63B21/045
Filed: 1974-12-10
Abstract: 1479760 Dumbbell K INOUE 10 Dec 1974 [2 Aug 1974] 53439/74 Heading A6M A dumbbell (Fig. 1) comprises a central portion 12 having two screw threaded shafts 15 projecting one from each end thereof, a weight secured to each shaft, each weight comprising sections A, B, C having internally screw-threaded bores and a grip promoting unit comprising a leaf spring 18 and fingergrip portion 19 made of synthetic resin. The weight sections A B C may be retained by a nut 17 or alternatively the end sections C may each be provided with a screw-threaded blind bore (Fig. 4). The leaf spring may be bent (Fig. 1) or straight (Fig. 4) or it may be replaced by a coil spring interposed between the central portion and a finger-grip portion.
Patent GB-1212705-A (GB)
Title: An aircraft
Inventor: ROED AGE EILEF
IPC: B64C25/42
Filed: 1967-11-28
Abstract: 1,212,705. Propulsion jet deflection by blown flaps. SAAB A.B. 28 Nov., 1967 [29 Nov., 1966], No. 54071/67. Heading B7G. [Also in Division F2] An aircraft wing 2 comprises a trailing edge flap 9 pivotable about an axis 13 below the wing from a first position A where it forms a smooth continuation of the wing to a second position D where it forms an acute angle with the undersurface of the wing, a slot 21 between the forward edge of the flap and the main body of the wing, a gas turbine engine 5 mounted on the wing forward of the flap and the slot, a lower flap 23 movable (e.g. about axis 23) in dependence on the movement of the flap 9 (e.g. via a link 24 between a first position where it closes the slot to a second position corresponding to position D of the flap 9 where exhaust air flow from the engine 5 is deflected upwardly through the slot, an upper flap 25 movable from a position A where it forms a smooth continuation of the wing contour, and a position D at an acute angle with the upper surface of the wing, and control means 18 to co-ordinate the flap movements. The above arrangement may comprise the inboard halves of the wings, the outboard halves comprising further trailing edge flaps 7, upper flaps 8 and also leading edge flaps 6 which when extended provide further slots 6a and 6b through the wing. These flaps together with the undercarriage 30 may have their movements also controlled by the pilot's control means 18. All flap and undercarriage movement may be provided by hydraulic actuators 16, 26, 31, 32, 33 and 34. The lower end of the forward wall of the passage 21 may be rounded, and the flap 23 may itself be slotted. When the trailing edge flaps 7, 9, lower flaps 23 and leading edge flaps 6 are moved to the positions B, the left of the wing is increased due to increased camber and boundary layer control provided by air passing through the slots 6a, 6b, 12 and 21.
Patent GB-1114360-A (GB)
Title: Air-propelled boat with air pumps
IPC: B63H7/00
Filed: 1966-12-05
Abstract: 1,114,360. Air-propelled boats and aircushion vehicles. J. VAN VELDHUIZEN, and E. M. VAN VELDHUIZEN. 5 Dec., 1966 [24 June, 1966], No. 54327/66. Headings B7A, B7K, B7M, B7S and B7V. [Also in Divisions E1 and F1] A boat has a buoyant bottom section 12 and upstanding side assemblies 22, 24 including air inlet ducts 90, 92 and air pumps 88, the side assemblies forming air passages and being provided with control means so that the boat may be propelled, steered and supported by air. The side assemblies have wall sections 32, 34 forming extensions projecting below the boat bottom 16, the section 34 having outlet openings 110 therein. The open-ended rear of each side assembly is provided with a rudder assembly 100 so that air discharged by the pump may be used to propel and steer the boat. The rear end may be obturated by a control flap 116 and the air may be exhausted through a forward discharge port 70 under the control of a flap valve 70 to cause lateral or reverse movement of the boat. By opening flap valves 40 air is supplied to said extensions and through outlets 110 to the undersurface of the boat. Between the side assemblies the boat is provided at the bow and stern with loading ramps 54 and 56, pivotally mounted at 50, 52 to swing down to the level of the flooring 48. The stern ramp 56 is provided with embracing plates 58, 60 defining a recess 62 in which the free end of a front ramp can be received and secured, thus providing for the coupling of members in tandem to form a barge assembly, the ramps being coplanar with the flooring 48 so that vehicles may be driven through the assembly.
Patent GB-1422439-A (GB)
Title: Interfitting parts coated with anaerobic compositions
IPC: B05D5/10
Filed: 1973-11-23
Abstract: 1422439 Coated interfitting parts LOCTITE (IRELAND) LTD 23 Nov 1973 [24 Nov 1972] 54399/73 Heading B2E [Also in Division B5] An interfitting part is provided on an engagement area thereof with a first coating of an anaerobic composition (i.e. a composition that cures in the absense of oxygen) comprising a polymerisable acrylate monomer and a peroxy polymerisation initiator therefor and then with a second coating of a cyanoacrylate polymer. The part may be of metal, glass or plastics and may be a threaded fastener, pipe or pipe fitting, or a rivet, flange or bondable substrate. The acrylate monomer may be of formula where R<SP>2</SP> is -H, halogen or C 1-4  alkyl, q is 1-4 and X is a C 2-30  organo group having a total bonding capacity of (q + 1), and the anaerobic composition may additionally comprise an amine and/or sulphimide as accelerator. The second coating may be a polymer of a cyanoacrylate of general formula where R is a C 1-16  alkyl, cycloalkyl, alkenyl, alkenyl, cycloalkenyl, phenyl or heterocyclic radical. The polycyanoacrylate composition may also comprise an anionic and/or free radical polymerisation initiator, a plasticiser such as a sebacate, malonate, diaryl ether or polyurethane, and a thickener such as a polymethacrylate, polyalkylcyanoacrylate, cellulose ester or polyvinylmethyl ether. The first coating may be applied by spraying, brushing, dipping or extrusion and the second by spraying, vapour phase deposition or dipping. In the Examples, (1) a bolt is sprayed with methylcyanoacrylate which is allowed to harden, a composition comprising tetraethylene glycol dimethacrylate and di-2-ethylhexoate, cumene hydroperoxide, a sulphimide, a toluidine, quinone, and also dipropoxy bisphenol A maleate as thickener, is applied and is then sprayed with further methylcyanoacrylate monomer which polymerises instantly to form a thin film over the anaerobic composition; (ii) an anaerobic composition comprising tetraethylene glycol dimethacrylate, fumed silica, mica, cumene hydroperoxide, a sulphimide, a toluidine and quinone is thickened with dipropoxy bisphenol A maleate, applied in a film to a flat steel surface, the film sprayed with methyl 2-cyanoacrylate which hardens to a solid film and another steel surface brought into contact with the covered film to thereby exclude oxygen and harden the composition.
Patent GB-1107010-A (GB)
Title: Jack arrangement for a platform structure
Inventor: YEILDING RALPH DUNCAN
IPC: E02B17/08
Filed: 1966-12-06
Abstract: 1,107,010. Lifting jacks. HYDRAULIC ENGINEERS Inc. 6 Dec., 1966, No. 54448/66. Heading B8J. [Also in Division E1] A jack assembly for selectively effecting movement between a structure 2 such as a drilling barge and a support leg 4 comprises spaced ring-like members 16, 17 adapted to surround the leg 4 with connecting double-acting hydraulic jacks 20, each ring 16, 17 being provided with a rotatable member 24 arranged between plates 21, 22. Each rotatable member 24 is provided with circumferentially spaced projections 25 adapted to engage projections 8 on each leg and with double-acting hydraulic cylinders 30 to rotate the member 24 to move the projections 25 into and out of engagement with the projections 8. The leg 4 may be raised or lowered step by step by engaging one set of teeth 25 and disengaging the other coupled with retraction or extension of the jacks 20.
Patent GB-1373219-A (GB)
Title: Optical brightening agents
IPC: C08K5/43
Filed: 1971-11-25
Abstract: 1373219 #-2-Pyrazolines; optical brightening agents PECHINEY UGINE KUHLMANN 25 Nov 1971 [26 Nov 1970] 54727/71 Heading C2C The invention comprises compounds of Formulµ I and II where R<SP>1</SP> and R<SP>2</SP> each represent alkyl groups containing 1-5 carbon atoms, n is 2 or 3 and X is a monovalent anion. Compound I is prepared by reacting compound II with an alkylating agent of formula X-R<SP>2</SP>. Compound II may be prepared by reacting the appropriate sulphonic acid halide with an amine of formula H 2 N-(CH 2 ) n -S-R<SP>1</SP>. Specific examples of I are where Ar is p-chlorophenyl and R 1  and R 2  are methyl or ethyl. Compound I may be applied to fibres of polymers or copolymers of acrylonitrile as an optical brightening agent.
Patent GB-1071224-A (GB)
Title: Photographic spray developing machines
IPC: G03D5/04
Filed: 1965-12-23
Abstract: 1,071,224. Spray developing apparatus. OMAC S.N.C. Dec. 23, 1965 [Dec.29, 1964], No.54733/65. Heading G2A. Apparatus for developing photographic film 2 by spraying with development liquid from nozzles (3) Fig. 2 (not shown) while progressing it continuously through the apparatus comprises a plurality of cells 1 fitted with upper and lower shafts 5, 6 around spools on which the film is progressed in loops, the lower shafts being driven by a common transmission. All the spools on the upper shafts 5 are freely rotatable relative to the shaft, whereas only some of the spools on the lower shaft are freely rotatable, the others being rotated with the shaft to advance the film. Successive treatments are carried out in successive cells.
Patent GB-1106920-A (GB)
Title: Polyester-fiber-reinforced elastomeric articles
IPC: B60C9/00
Filed: 1966-12-07
Abstract: A reinforced elastomer article (see Division B7 comprises linear condensation polyester fibres and an elastomer which has a moisture permeability of at least 20 g./m.2/24 hours and which contains a amine-free accelerator not capable of generating amines under vulcanization conditions.  The elastomer is suitably cis-1,4-polybutadiene and may be mixed with natural rubber or SBR. Suitable accelerators are benzthiazyl disulphide, mercaptobenzthiazole, and tetra-alkyl thiuram monosulphides.