baber/WOPTO huggingface dataset:
Patent GB-1275156-A (GB)
Title: Liquid cooled dynamoelectric machines
Inventor: INAGAKI JUNPEI
IPC: H02K19/24
Filed: 1969-09-30
Abstract: 1275156 Cooling dynamo electric machines TOKYO SHIBAURA ELECTRIC CO Ltd 30 Sept 1969 [1 Oct 1968 (2)] 47996/69 Heading H2A In a liquid-cooled dynamo electric machine, e.g. the driving motor of an electric car, comprising a statot A, a rotor B, and means, e.g. nozzles 4a, 4b, to spray a cooling liquid directly upon high temperature portions, e.g. end turns of a main winding 3, of the stator, means are provided on the rotor peripheral surface to create when the rotor rotates an axial component of force which prevents the liquid from entering the air gap between the rotor and stator. Such means comprises either, as shown, making the surface outwardly inclined from the axial centre towards opposite ends of the rotor or, Fig. 3, oppositely directed helical grooves (31, 32). The machine otherwise is similar to that disclosed in copending Application (47991/69).
Patent GB-1275620-A (GB)
Title: Optical system
IPC: G03B21/20
Filed: 1969-10-01
Abstract: 1275620 Optical focussing system; lighting arrangements INTERNATIONAL BUSINESS MACHINES CORP 1 Oct 1969 [9 Oct 1968] 48218/69 Headings G2A and G2J An optical system for producing a light beam which converges on to a desired focal point 19 comprises a light source 13, a half silvered mirror 15 positioned equidistant said source and focal point in a plane perpendicular to and bisecting a line therebetween and a retro-reflective surface 11 or 12 positioned to direct the diverging beam from a surface of the mirror back to the mirror as a converging beam which is then directed to the focal point. As shown, diverging light from a source 13 e.g. xenon, mercury, tungsten or iodine lamp or a carbon arc is directed to mirror 15 which transmits half to retro-reflective surface 12, e.g. having cube-corner reflectors or catadioptric elements and reflects half to similar surface 11. The converging beam produced is either reflected or transmitted by the mirror either to the focal point 19 or back to mirror 14 at the source which is provided to increase optical efficiency of the system. A lens 10 may be provided in the light path and when the system is used as a photographic enlarger a slide holding means 16 and a screen 18 are provided. In a modification, Figs.2A, 2B (not shown) a portable system in a housing (21) has the reflective surfaces backed on to flexible bases which are wound on spools (22, 23, 24). Spring-loaded extension (25, 27, 28) serve to unreel the surfaces and provide rigidity while a further rolled strip (26), when extended shows the light source position. Fig.3 (not shown) shows the reflective surfaces  hinged at (34) to allow for transit and for the adjustment of the position of the focal point.
Patent GB-1207857-A (GB)
Title: Improvements in or relating to load carrying machines, such as cranes, mechanical shovels and trench hoes
IPC: B66C23/74
Filed: 1967-10-24
Abstract: 1,207,857. Scoop-arm machines. F.M.C. CORP. 24 Oct., 1967 [21 Nov., 1966], No. 48332/67. Heading E1F. [Also in Division B8] In a machine such as a crane, mechanical shovel or trench hoe, having a rotatably mounted platform 14 carrying a boom at one of its ends, there is provided a counterweight 17 for mounting at the other end of the platform and a counterweight mounting mechanism 18 for raising the counterweight into its mounted position and securing it in that position, the mechanism 18 comprising toggle links 75, 76 which are pivotable to cause pivotal movement of a lever 72 to engage and secure the counterweight in the said position The mechanism 18 which is operated by a hydraulic motor 82 is disposed at one side of the platform and is associated with a second such mechanism at the other side of the platform. The lever 72 which is adjustably mounted has a head 74 for engaging a recessed stud 32 adjustably mounted in the counterweight and a boss 45 on the platform 14 engages a recessed member 42. When the counterweight is not engaged by the mechanisms 18 it is supported on bolts 48 and bosses 47. In operation the toggle links 75, 76 are moved to a final over-centre position when the mechanisms 18 engage the counterweight to prevent its inadvertent detachment.
Patent GB-488734-A (GB)
Abstract: 488,734. Igniting gas burners. GENERAL GAS APPLIANCES, Ltd., and COLEMAN, F. S. Feb. 20, 1937, No. 5104. [Class 75 (iii)] In means for automatically igniting a gasfire or other burner a on opening the gas cock, a friction-wheel l, mounted on a spindle k, parallel to the axis of the cock h, is loaded by a return spring m<1> attached to a stop pawl m<2>, secured by screws m to the wheel, and a pawl n on the spindle k is connected to .the wheel by the screws m passing through slots n<1> for limited movement relatively thereto against the action of a spring n<3>. On opening the cock, a projection o on a plate t on the cock spindle g engages the pawl n to rotate the wheel l until the pawl n is released and the wheel rapidly returned by the spring m<1> to ignite a pilot-jet i, the gas supply to which is opened by the movement of the cock beyond the fully-open position against the action of a spring-pressed plunger q engaged by a projection p on the plate. On releasing the cock, the plunger q returns it to the full-on position. When the cock is turned back, the projection o rotates the pawl n against the spring n<3> until the pawl is released and returns to its normal position. The spindle k and the flint holder s are mounted on a bracket j.
Patent GB-1438769-A (GB)
Title: Supersonic mixed compression jet engine air intakes
IPC: F02C7/04
Filed: 1972-10-26
Abstract: 1438769 Supersonic jet engine air intakes DEFENCE SECRETARY OF STATE FOR 17 Oct 1973 [26 Oct 1972] 49459/72 Headings F1G and F1J A supersonic, mixed-compression jet engine air intake has walls defining a convergent-divergent flow passage having a throat therein at the plane P, the walls comprising a first wall 1 and a second  wall 2a, 2b opposite thereto, the second wall  having formed therein a duct entrance 3 extending  upstream from the throat, the upstream edge of the duct entrance being located in a region opposite the upstream termination of the first wall 1. The intake normal shock wave A, when located upstream of the throat, terminating on a streamline boundary E extending across the duct entrance, inlet air in excess of engine air demand being discharged into the duct entrance downstream of the intake normal shock wave. The object of the invention is to avoid the phenomenon known as "unstart" which occurs when the normal shock wave moves upstream from its design point at the intake throat.
Patent GB-1121499-A (GB)
Title: Process for the production of high molecular weight polyesters of carbonic acid
IPC: C08G64/26
Filed: 1965-11-23
Abstract: In the manufacture of polycarbonates of dihydric alcohols by polycondensing at an elevated temperature a compound of formula <FORM:1121499/C3/1> in which R is -H or -COOR11, R1 is an aliphatic, araliphatic or cycloaliphatic radical having at least three adjacent carbon atoms between the two oxygen atoms, R11 is a C1C4 alkyl radical or a phenyl radical and x is 1-100, there is used as a catalyst (a) an alkali metal or ammonium salt of a C6- 21 fatty acid, an alkylsuphoni acid or an alkyl substituted arylsulphonic acid (both of the sulphonic acids having 6-21 carbon atoms in their alkyl radicals) or (b) a condensation product of one of said carboxylic or sulphonic acids with an alkanolamine.  The intermediate to be polycondensed may be made (i) by reacting a dihydric alcohol with a chloroformate of a monohydric alcohol or a mixture thereof with phosgene or (ii) by reacting a dihydric alcohol with a dialkyl or diaryl carbonate in the presence of a strongly alkaline catalyst containing an alkali metal or ammonium cation.  In the latter case the polycondensation catalyst may be formed in situ by adding a free fatty acid to the intermediate. Specified dihydric alcohols are 1:4butanediol, 1:6 - hexanediol, 2:6 - octanediol, 1:12 - dodecanediol, 1:3 - or 1:4 - cyclohexanediol, 1:3- or 1:4-cyclohexanedimethanol, 3- or 4-hydroxymethylcyclohexanol, o-, mor p-bis-(2-hydroxyethyl)-benzene, hydroquinone - bis - (2 - hydroxyethyl) ether, 2:2 - bis(p - 2 - hydroxyethoxyphenyl) - propane and 2:2 - (4:41 - dihydroxydicyclohexyl) - propane. In the examples an intermediate is obtained by passing phosgene into a mixture of 1:4-cyclohexanedimethanol and ethyl alcohol and after removal of the hydrogen chloride and excess ethyl alcohol the product is polycondensed in the presence of various catalysts.
Patent GB-1277628-A (GB)
Title: Phase comparator
Inventor: BJORKLUND ROLF
IPC: G01R23/00
Filed: 1969-10-13
Abstract: 1277628 Phase comparators ALLMANNA SVENSKA ELEKTRISKA AB 13 Oct 1969 [14 Oct 1968] 50173/69 Heading H3A A phase comparator comprises: first and second gates 12, 13 with one input 14, 16 of each connected to a respective input signal U or I and a second input 15, 17 connected to the output of the other; a third gate 20 having one input 21 connected to the output of the first gate 12 and the other input 22 connected to input 16 of the second gate 13; an integrator 25 connected to the output of gate 20; and a level switch 26 connected to the output of integrator 25 and arranged to operate when the phase difference between the two inputs passes a predetermined value. In the embodiment of Fig. 1, gates 12, 13 are NOR gates, gate 20 an AND gate, and an inverter 23 is included in the connection between input 16 and input 22. In an alternative embodiment, Fig. 3 (not shown), all three gates are NAND gates and the inverter (40) is included in the connection between the output of the first gate and the other input to the third gate.
Patent GB-1428340-A (GB)
Title: Process for the surfacl oxidisation of aluminium
IPC: C23C14/08
Filed: 1974-11-20
Abstract: 1428340 Surface oxidized Al coating on steel COCKERILL-OUGREE-PROVIDENCE ET ESPERANCE-LONGDOZ EN ABREGE "COCKERILL" 20 Nov 1974 [15 Jan 1974] 50213/74 Heading C7F An Al-coated steel sheet is passed through an enclosure containing a vacuum of 10<SP>-1</SP> to 10<SP>-3</SP> Torr containing a residual gas which is acted upon by an electric field to form positive ions which are aimed at an Al target to remove therefrom Al atoms, which react with oxygen also present in said enclosure to deposit an oxide layer on the Al-coated steel. The residual gas may be Ar. As shown, steel sheet 3 enters through gate 4 into evacuated chamber 1 containing source 6 of Al vapour, which coats the steel, which proceeds via gate 5 to chamber 7 at 10<SP>-1</SP> to 10<SP>-3</SP> Torr containing Ar +O 2 , where the electrical field between high-voltage electrodes 11 and Al block target 9 on earthed conductor 10 produces positively charged Ar atoms which bombard block 9, thus producing a reactive-sputtered Al 2 O 3  coating on strip 3. Block 9 may be dispensed with, the Al coating on the strip serving instead as the target.
Patent GB-1379512-A (GB)
Title: Control systems for dc motors
IPC: H02P7/29
Filed: 1970-10-22
Abstract: 1379512 Control of DC motor SEVCON Ltd 18 Jan 1972 [22 Oct 19701 50343/70 Heading H2J In a control system for a D.C. motor 2, 4, Fig. 1, particularly applied in crane hoisting, switches 22, 32, 36 are arranged so that in one condition they connect the armature 2 and field windings 4 in series with a source 6 for load raising and in a second condition they reverse the polarity on the armature 2 for load lowering and shunt the armature and field windings, the current through the motor being controlled by a pulse control circuit 20. Free wheel diodes 34 connected across the motor permit current to circulate when main thyristor 50, Fig. 2, in a speed control oscillator system 20 is non-conducting. A brake coil 24 is provided in series with the supply for automatically releasing a spring- loaded mechanical brake, and is shunted by a diode 26 to suppress high transient voltages at thyristor cut-off. The motor speed may be controlled through a thyristor pulse control system having a main thyristor 50 in the D.C. supply line with a parallel connected second thyristor 56 in'series with a commutating capacitor 52. In operation capacitor 52 becomes charged to a voltage exceding that of the supply by inductance 18 when the main thyristor is non- conducting and the second thyristor is fired. When the capacitor 52 is fully charged the second thyristor is cut off and the main thyristor is rendered conducting for passing the rectified supply. A third reversed thyristor 58 fired simultaneously with the main thyristor 50 discharges the capacitor 52 through inductance 60 whereby the charge on capacitor 52 is reversed and the third thyristor is rendered non-conductive. When the second thyristor 56 is again rendered conducting the reverse charge on capacitor 52 renders the main thyristor non- conducting until it is again forwardly charged by the second thyristor 56 for repetition of the cycle.
Patent GB-1535058-A (GB)
Title: Vacuum pump with oil separator
IPC: B01D46/00
Filed: 1975-12-09
Abstract: 1535058 Oil separator GENERAL SIGNAL CORP 9 Dec 1975 [9 Dec 1974] 50381/75 Headings B1D and BIT A separator 10 is connected to the gas discharge 56 of a rotary piston vacuum pump 40 to remove condensed water and oil from the gas and to separate them by gravity, the water being discharged by overflow 70 and the oil being returned by a line (not shown) to the pump, where it has a lubricating and sealing function. The separator housing 14 is lined, at least above the liquid level 15 and preferably all over, with a coating 24 to prevent corrosion by water, this arrangement facilitating separation of oil-water emulsion. Coating 24 may be iron phosphate, formed by phosphortizing the iron housing, which is porous and holds a quiescent oil layer. Alternatively expoxy, epoxy phenolic, polyester or polytetrafluoroethylene coatings are applied by spraying, brushing or electrostatically. Inlet pipe 18 is directed upwards into a cup-like baffle 20 enclosing one or more wire mesh screens 32 of 10 meshes per linear inch, which break large drops to prevent splashing of the liquid pool 16. Gas leaves at 22.
Patent GB-1444434-A (GB)
Title: Electrostatic separating apparatus
IPC: B01D17/02
Filed: 1973-10-30
Abstract: 1444434 Electrostatic separation T TOKUMOTO 30 Oct 1973 1 Nov 1972 9 Nov 1972 15 Nov 1972] 50408/73 Heading B2J [Also in Division C7] Liquid waste containing oil and solid foreign matter as impurities is fed into the bottom 12 of a separator tank 10 through an inlet 14 to rise in droplet form through a 'body of dielectric solvent 26, e.g. tetra- or trichloro ethylene, which has a specific gravity greater than that of water and in which are supported electrodes 30, 28. An electrostatic field is established between the electrodes, and under the influence of this the liquid droplets are electrophoretically dissociated into water, oil and solid matter which rise to the top of the tank to form supernatant layers of oil-laden solvent, solid matter 72 and clarified water 74; overflow outlet means for the water and the solid matter are provided respectively by 'the upper edges 66a and 68a of the side wall of the tank, which wall is of double layer construction as shown, and the outlet for the oil-laden solvent is constituted by elongate openings 78 in the rear wall (79) Fig. 5 (not shown) of the tank. The electrodes 30, 28 are energised from a high voltage D.C. source 40 and have generally planar surfaces provided with triangular projections 36, 38 (Fig. 4, not shown) which impart charges to the liquid droplets in the inter-electrode space. A cooling pipe 92 is mounted inside the tank below the level of the oil-laden solvent layer and creates a temperature differential within the solvent body to facilitate upward movement of the droplets and oil-laden solvent.
Patent GB-1180454-A (GB)
Title: Improvements in or relating to Resistance Welding
Inventor: COX BRUCE NEVILLE
IPC: H01R43/02
Filed: 1967-11-06
Abstract: 1,180,454. Welding by pressure. WELWYN ELECTRIC Ltd. 6 Nov., 1967, No. 50434/67. Heading B3R. [Also in Division H2] Apparatus for resistance welding a termination lead to an electronic component comprises a fixed electrode and electromagnetic means for periodically moving a movably mounted electrode towards the fixed electrode to enable welding to be effected, means for periodically moving apart the two electrodes, means for supplying welding current when the component and lead are in mutual welding relation and means to ensure the existence of a gap between the two electrodes when said electromagnetic means is actuated and to limit the extent of travel of said movably mounted electrode. A resistor or capacitor 3 provided with an end cap 1 a metallized area, is gripped in fixed electrodes 4, 5 while the terminal lead 2 is clamped by a movable electrode 12 mounted on a support 14 pivoted at 21. The support 14 abuts an adjustable stop 18 such that a variable gap 23 exists between the support and an electromagnetic core 16 when the electrodes are held apart (as shown) by e.g. a solenoidoperated device 20. Upon de-energization of coil 19 the support 14 and electrode 12 are urged by tension spring 22 to rotate about pivot 21 such that the tip 24 of the terminal lead abuts the end cap of the component. A current pulse in coil 17 attracts a ferritic part 15 of the support 14 and a short while later a welding current pulse is fed to the electrodes from a pulse circuit (Fig. 3, not shown), so that the terminal lead is fed into the weld as the tip 24 melts. Thereafter, the electrode 12 releases the terminal lead and the coil 19 is re-energized to retract the electrode 12 against the stop 18. In a modification (Fig. 2, not shown), the tension spring 22 and pivot 21 are replaced by a torsion bar (26). The opening and closing of the jaws of electrode 12 is effected through rollers (31) bearing on surfaces (34) of pivoted levers (32) and operated by a Bowden cable (29). The welding current pulse may be derived from a capacitor discharge.
Patent GB-1481504-A (GB)
Title: Cyclopropylmethylamine derivatives
IPC: A61K31/135
Filed: 1975-12-09
Abstract: 1481504 α - (2,2 - Diarylcyclopropyl)methylamines SUMITOMO CHEMICAL CO Ltd 9 Dec 1975 [11 Dec 1974 16 May 1975] 50471/75 Heading C2C The invention comprises compounds (I), where Ar<SP>1</SP> is phenyl substituted by one or more of halogen, C 1-4  alkyl, C 1-4  alkoxy and CF 3 , of which at least one is in the o- or m -position; Ar<SP>2</SP> is phenyl optionally substituted by one or more of halogen, and C 1-4  alkyl ; R is hydrogen, C 1-4  alkyl, or C 2-4  hydroxyalkyl; and R<SP>1</SP> is C 1-4  alkyl or C 2-4  hydroxyalkyl, and their preparation by reducing a compound (II) below or by reacting a compound (III) below, where X is a conventional leaving group with an amine HNR<SP>1</SP>R. Therapeutic compositions having antidepressant and/or anorexic properties comprise, in forms suitable for parenteral or oral administration; compounds (I) together with an inert diluent or carrier. The starting compounds (II) and (III) are made in accordance with the reaction scheme where R<SP>11</SP> is C 1-4  alkyl.
Patent GB-1201162-A (GB)
Title: Apparatus for friction welding two pieces of plastics material
IPC: C25D5/38
Filed: 1967-11-08
Abstract: 1,201,162. Seaming non-metallic sheet material. FAM FORSCHUNGS ANSTALT FUR MECHANIK. 8 Nov., 1967 [8 Nov., 1966; 19 May, 1967: 12 June, 1967], No. 50863/67. Heading B5K. Two sheets of plastics material, e.g. polypropylene, are friction welded together by vibrating one of the sheets in a direction parallel to the other whilst holding the two sheets together under pressure, the duration of the welding operation being automatically timed, e.g. by means for stopping the vibration of the one sheet upon increase of sliding resistance between the sheets when the interface of the sheets melts. As shown, an eccentric 6 carried at the end of the shaft of an electric motor (2), Fig. 2 (not shown), turns in a square 7 sliding in a rectangular opening 8 in a welding tool 9 the lower end 92 of which is serrated to grip the upper sheet of a pair to be welded which are positioned on a plate 13 of a base 12. The tool 9 is spring-urged upwardly against a tempered steel ball 25 or cylinder which rests in a hollow 93 in the upper part 91 of the tool 9 and is received in a recess in a piston 16. The tool 9 is lowerable by a lever 14 having an eccentric portion 15 which acts on the piston 16 through a strong helical spring 17. A second lever 18 acts resiliently on a toothed drum 19 co-operating with a plate 20 for advancing the sheets. The working surface of the tool 9 comprises toothed zones 31, Fig. 3, and channels 32 between the zones 31 into which channels plastics material can flow during welding. In a modification (not shown), the perimeter of the working surface of the tool 9 is raised to provide a boss. In operation, the motor (2), Fig. 2 (not shown), is automatically operated through a pusher (22) and switches (23) when the lever 14 is lowered. Initially, the rubbing of the ball 25 against the piston 16 and the tool 9 is such that the part 91 does not move laterally relative to the piston 16. When the resistance of the upper sheet increases due to its adherence to the lower sheet the tool 9 is braked and the part 91 begins to oscillate about the fixed lower part 92 and thus avoids tearing of the upper sheet.
Patent GB-1409667-A (GB)
Title: Producing an electrolytic coating
IPC: F02B53/00
Filed: 1972-11-07
Abstract: 1409667 Electro-plating apparatus SOC ANON AUTOMOBILES CITROEN 7 Nov 1972 [9 Nov 1971] 51240/72 Heading C7B A device 1 for plating the peripheral walls of members exposed to frictional forces, e.g. the trochoidal inner walls 2 of Al-Si rotary piston engine casings 3 with Ni, comprises means for stacking the members with separators 7 therebetween e.g. using centering pins 6 force-fitted into holes 5, 12 therein, stack clamping means 9, electrical contact being arranged between the members, and sealing means 8 completely insulating the electrical contact from the plating bath 10 contained in a vat 15. Preferably the electrical contact means is constituted by at least one Al or Ti cross-piece 11 forming the separator 7, and the sealing means by plastics seals 13, 14 (a, b), the thickness of one or more seals, when clamping means do not exert pressure, being greater than that of the cross-piece. The anode 16 is arranged centrally within tubular space 25. The clamping means 9 may comprise a lower frame 22 on which the stacked members rest, the frame having a downwardly flared opening 23, at least two Ti columns 27 fixed on the frame and passing through the stack of casings and co-operating above with a cross-member 29, and a jack 30 on the crossmember connected to arms 31 supported on a ring 32 on the stack. The stack may be agitated vertically and the bath 10 may be air-blown by tubes t.