baber/WOPTO huggingface dataset:
Patent GB-701200-A (GB)
Title: Improvements in or relating to coil ignition systems for internal combustion engines
IPC: H01F38/12
Filed: 1952-08-18
Abstract: 701,200. Ignition coils. LOCH, M. M. Sept. 25, 1952 [Aug. 18, 1952], No. 20688/52. Class 38 (2). [Also in Group XXVII] In a coil ignition system comprising two coils 10, 10', each fitted with sockets 21, 22 and 23, there is provided a plug connector 30 having pins 24, 25 and 26 connected respectively, to the ignition switch, distributer and contact breaker, none of which are shown, which can be plugged into the sockets of either coil. The pins and sockets are offset and the socket 22 and its associated pin 25 are larger than the other two pins and sockets; alternatively, the sockets in each coil may have different diameters, the pins being correspondingly dimensioned. Set screws 27 secure the leads in the pins 24, 26 whilst the lead to pin 25 is secured thereto by a threaded holder 28 which may incorporate a suppressor. The coil which is not in use may be fitted with a cover 32 having a pin 33 engaging the socket 22 whilst the connector 30 is provided with a waterproof apron 31. The two coils are secured to a strip support 12 by clamps 13, 16 and 16<SP>1</SP>.
Patent GB-226132-A (GB)
Title: Improvements in convertible garments
IPC: A41D15/02
Filed: 1924-09-03
Abstract: 226,132. Szczekacz, H. Sept. 3, 1924. Overcoats and pantaloon garments.-An overcoat is provided with means for enclosing the legs and for this purpose is provided at the rear vent with a double flap 5 capable of being opened, as shown in Fig. 2, for use, or of having its two portions fastened together by push buttons 6, 7 or other fastenings. The sides of the coat are provided with complementary fastenings 9 to engage the fastenings 6, 7 for enclosing the legs. Fig. 2 shows the inside of the garment, and Fig. 4 the form of the garment when worn as a pantaloon garment. Draw tapes 11 are provided for the base of the knickerbocker part of the garment.
Patent GB-625496-A (GB)
Title: Improvements in steam generators
IPC: F22B1/30
Filed: 1947-07-31
Abstract: 625,496. Steam boilers. STEEN, C. A. July 31, 1947, No. 20840. [Class 123(ii)] In a steam generator, not shown, preferably electrically heated, which is connected to an expansion vessel 4 by a pipe 5 provided with a check valve 1, 3 permitting flow of water only to said vessel 4, the water returns through a channel of reduced area, e.g. a fine hole in the valve 3 or an external pipe having a constriction therein, which is maintained clear by cleaning needle 2. The needle 2 may be fixed to the valve casing 1 or to a yoke in the vessel 4, or, alternatively, is connected to a float in the latter.
Patent GB-719674-A (GB)
Title: Improvements relating to conveyors
IPC: B65G19/28
Filed: 1952-08-20
Abstract: 719,674. Troughs for endless conveyers. MAATSCHAPPIJ VOOR KOLENBEWERKING STAMICARBON N.V. Aug. 20, 1952, [Aug. 24, 1951.] No. 20888/52. Class 78 (1). [Also in Group XXV] Adjacent sections 1, 2 of the trough of an endless conveyer are linked together at each side of the trough in a manner permitting relative articulation of the sections by bolts 5 extending through sleeves 3, 4 on the ends of the sections, the sleeves being secured by the head 6 of the bolt abutting the sleeve 3 and by a pin 10 which is driven around a groove 7 on the bolt through an entrance 8 in the wall of the sleeve 4, the pin protruding out of the groove and abutting a projection 9 on the sleeve. The connection between the sleeves is broken by striking the bolt head 6 with a hammer whereby the pin 10 is sheared off at the entrance 8. The relative movement between the sections may be reduced by passing the sleeve 4 over the bolt so as to bring the entrance 8 into registration with either of grooves 13, 14 in the bolt and then forcing the pin through said entrance into the selected groove. The grooves 7, 13, 14 are each provided with a stop 15 which may be formed by a local weld deposited in the groove so that the bolt is locked against turning after the pin has been driven round the groove. The pins and the grooves may be of rectangular cross-section with the long side of the section parallel to the bolt. The grooves may follow a helical course.
Patent GB-1488361-A (GB)
Title: Method of and apparatus for friction welding
IPC: B23K20/12
Filed: 1975-02-20
Abstract: 1488361 Seaming CLARKE CHAPMAN Ltd 20 Feb 1975 [11 May 1974] 20934/74 Heading B5K [Also in Division B3] In a method of friction welding, relative rubbing movement is caused between two outer workpieces and an intermediate workpiece by supplying a load to the workpieces along a line, parallel to which the intermediate workpiece is movable but parallel to which only one of the outer workpieces is movable. An embodiment of an apparatus for welding tubular end components to a hollow axle banjo component comprises a fixed head 12, at one end of a base 14, having a chuck 18 rotatable by a motor 22, and slidable on the other end of the base, a head 10 having a chuck 16 driven by a motor 20. An hydraulic ram 32 is pivotally mounted to the base at 34 and its piston-rod 38 is pivotally connected at 40 to the head 10. A carriage 50 slidable on the base carries a boss 52 and clamps 54, 56, and a rod 60 having a stop 64 on the side remote from the head 10, extending from the head 10 passes through a bracket 62 on the carriage. In operation the outer workpieces are held in the chucks 16, 18 and the banjo is clamped on the carriage 50, the chucks are rotated and the head 10 is advanced towards the head 12. The workpiece in the chuck 16 engages the banjo and moves it into contact with the workpiece in the chuck 18 and friction welding of the pieces occurs, an increased load being supplied for forging. Retraction of the head 10 causes retraction of the carriage 50 by engagement of the stop 64 with the bracket 62. The heads may impart orbital, reciprocatory or other motion to the parts, one or each head may support more than one workpiece and the workpieces may be of the same metal or synthetic plastics materials.
Patent GB-767172-A (GB)
Title: Improvements in and relating to speed control of electric motors
Inventor: LUDBROOK LESLIE CARTER
IPC: H02P7/26
Filed: 1952-08-21
Abstract: 767,172. Automatic speed/current control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 8, 1953 [Aug. 21, 1952], No. 21011/52. Drawings to Specification. Classes 38 (2) and 38 (4). [Also in Group XXXVII] Resistors are provided in the cathode leads of grid controlled rectifiers: (i) to limit fault current, (ii) to balance parallel connected valves, Fig. 2, (iii) to assist in simultaneous ignition of parallel connected groups, Fig. 1, (iv) to provide a current-responsive signal for e.g. limiting the current supplied through the valve. Fig. 3 (not shown) comprises an electronic control circuit for a bi-phase gridcontrolled rectifier supply for a motor and it is stated that the circuit may be controlled by a motor speed-responsive signal. In addition a current-limiting signal is fed back to the input of the control circuit from the rectifier cathode resistors. In a bi-phase rectifier, Fig. 4 (not shown) to improve current balance in the two phases the cathode resistor drop in one phase is stored in a capacitor for comparison with that in the other phase and the difference voltage is used to control the grid triggering circuit. Specification 767,171 is referred to.
Patent GB-1335506-A (GB)
Title: Exposure device for manufacturing a display screen of a colour display cathode ray tube
IPC: H01J9/227
Filed: 1972-05-05
Abstract: 1335506 Luminescent screens PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 5 May 1972 [8 May 1971] 21026/72 Heading H1D [Also in Division G2] In a lighthouse for the manufacture of a colour television screen by exposure of a photoresist through a shadow mask, the lens system 8 includes a refractive surface having a stepped profile which divides the lens into annular zones, the transition zones 13-15 between steps being tangential to the light paths. In the arrangement shown the lens system comprises a symmetrical lens 1 which produces a virtual displacement of the light source along the axis which increase with the angle of the rays to the axis, and a stepped lens 12 which produces a virtual displacement of the source normal to the axis in the plane of the drawing which increases with the angle. A motor 18 is provided for moving the lens 12 so that its centre describes a circle of 1À5 mm. radius in order to reduce the effect of residual scattering at the transition regions 13-15. If desired the lens 1 may be made asymmetrical so that it produces part of the required displacement of the light source normal to the axis.
Patent GB-839634-A (GB)
Title: Process for colouring plasticised polyvinyl chloride or lacquers and printing inks
IPC: C09D101/18
Filed: 1956-07-06
Abstract: Lacquers are coloured with pigments obtained by reacting perylene-3,4,9,10-tetracarboxylic acid with an aromatic amine containing an ether grouping, such as p-anisidine or an aminodiphenylene oxide (see Group IV (c)).  In an example, a nitrocellulose lacquer is coloured with the reaction product of perylene-3,4,9,10-tetracarboxylic acid and 2-amino-diphenylene oxide. Specification 201,786 is referred to.ALSO:Pigments are prepared by reacting perylene-3,4,9,10-tetracarboxylic acid with an aromatic amine containing an ether grouping, such as p-anisidine, or 2- or 3-aminodiphenylene oxide.  The products are used for colouring plasticized polyvinyl chloride, lacquers, or printing inks. Examples describe the reaction of perylene-3,4,9,10-tetracarboxylic acid dianhydride with p-anisidine and with 2- or 3-aminodiphenylene oxide. Specification 201,786 is referred to.ALSO:Plasticized polyvinyl chloride and lacquers are coloured by incorporating pigments obtained by the reaction of perylene-3,4,9,10-tetracarboxylic acid with an aromatic amine containing an ether group such as p-anisidine or an amino-diphenylene oxide (see Group IV (c)).  In an example, the product obtained from p anisidine is incorporated on rollers, together with titanium dioxide, with polyvinyl chloride, dioctyl phthalate, and dibutyl phthalate, and that obtained from 2-amino-diphenylene oxide is used to colour a nitrocellulose lacquer. Specification 201,786 is referred to.
Patent GB-734689-A (GB)
Title: Improvements in aerials
IPC: H01Q9/26
Filed: 1952-08-22
Abstract: 734,689. Aerials. SHARDLOW ELECTRIC WIRES, Ltd., and JONES, P. Feb. 27, 1953 [Aug. 22, 1952], No. 21130/52. Class 40 (7). A horizontal or vertical aerial comprises two coplanar centre-fed folded V-dipoles 6, 6a and 7, 7a mounted in a junction-box with their apices adjacent. As shown, the aerial is made directional in a plane perpendicular to the plane of the dipoles by feeding the dipoles in antiphase by cross-connecting the feed points, Fig. 2, or by interconnecting them with a #/2 line 8, Fig. 1, the feeder 9 being connected to one feed point as shown, or tapped into the line 8 to effect impedance matching and phasing. The length of each dipole section 6, 6a, 7 and 7a may be approximately #/8 or n#/2 and the angles subtended between adjacent sections are preferably 90 degrees but these angles and the lengths of the sections may be adjusted to control the directivity, e.g. the sections of the front dipole may be 5 per cent shorter than those of the rear dipole. Fig. 4 shows a mounting for the Fig. 2 arrangement in which the plane of each folded section is perpendicular to the plane of the dipoles. The inner ends of each folded section extend inwardly through an insulating block 14, the four blocks fitting notches cut in a washer 14a and being retained in position by clamping together a rear metallic member 11 and a front metallic member 12 (not shown in Fig. 4; see Fig. 3, not shown) which engage the inner portions of the blocks. On the front surface of the washer 14a the inner ends of the sections are cross-connected by strips 15, 16 which are connected respectively to the inner and outer conductors 9b and 9a of the feeder 9, and on the rear surface of the washer 14a the inner ends of the sections are electrically interconnected by contacting the member 11 or a metal washer.
Patent GB-1132282-A (GB)
Title: Lined cover for electrolytic cell
IPC: C25B9/19
Filed: 1965-08-31
Abstract: 1,132,282. Covers for electrolytic cells. HOOKER CHEMICAL CORP. Aug.31, 1965 [Aug.31, 1964], No. 21181/68. Divided out of 1, 132, 281. Heading C7B. A concrete cover 64 for an electrolytic cell, e.g. for the electrolysis of hydrogen chloride, has applied to its internal surface a protective covering 66 of chlorinated polyvinyl chloride. The cell cover shown is provided with electrolyte inlet 18, chlorine and hydrogen outlets 24, 28 and an analyte level sight tube 68.
Patent GB-1325839-A (GB)
Title: Electromagnetic actuator
IPC: B41J9/38
Filed: 1972-05-08
Abstract: 1325839 Selective printing INTERNATIONAL BUSINESS MACHINES CORP 8 May 1972 [25 June 1971] 21317/72 Heading B6F [Also in Division H1] Hammer mechanism.-A print hammer actuator comprises a main three-legged magnetic core 12 having an operating winding 20 on a centre leg 16, and an armature 22 pivotally supported at 24 adjacent the lower leg 18 with an extension 28 at the other end producing a hammer face. A projection 26 on the armature 22 is opposite the middle leg 16 and moves within the winding 20. A secondary magnetic core 33 on the opposite side of the armature with a restore and damping winding 35 operates to damp oscillations. A spring 23 biases the armature 22 against the secondary magnetic core which is also pivoted at 24 so as to be adjustable with set screws 46 and 48. The third leg 34 of the secondary core 33 acts as the back stop.
Patent GB-1106454-A (GB)
Title: Instrument tutoring device
IPC: G10G1/02
Filed: 1964-05-23
Abstract: 1,106,454. Teaching music. R. B. LEE. 17 May, 1965 [23 May, 1964; 8 Jan., 1965], Nos. 21377/64 and 907/65. Heading G5X. The device shown is for assisting a pupil to learn a musical instrument and is described with reference to teaching the guitar. An apertured paper or celluloid band passes between a contact plate 19 and individual contacts 20 representing stopping positions. The occurrence of a hole in the band at a particular position illuminates a lamp 25 situated under the appropriate fret and string to indicate the stopping to the pupil. In order to cut the band, switch members 21 are moved to the right-hand position, Fig. 3 (not shown) and a battery supply is applied to a metal bridge associated with all the strings. Stopping a particular string on a particular fret energizes a solenoid 26 to punch a hole in the correct position on the band. An auxiliary circuit operated by a plectrum is provided to punch holes representatve of notes produced by the open strings.
Patent GB-636697-A (GB)
Title: Improvements in and relating to the manufacture of cyanamide and its derivatives
Inventor: COURTIER ARMAND JEAN
IPC: C01C3/16
Filed: 1947-08-07
Abstract: Aqueous solutions of cyanamide of any desired concentration are made by adding to water an appropriate quantity of a solution of cyanamide in a solvent more volatile than water and removing the solvent from the resulting mixture by distillation.  The solvent, e.g. ethyl acetate, may have a low latent heat of vaporization. The solution added may be maintained at a temperature near the boiling point of the solvent and the latter may be distilled under reduced pressure. Derivatives of cyanamide may easily be prepared from these aqueous solutions, e.g. dicyandiamide may be made by dimerization of an aqueous solution containing 20-25 per cent of cyanamide.  Solutions of cyanamide in organic solvents may be prepared by the process described in Specification 636,600.ALSO:Urea is made by hydration of an aqueous solution containing 40-50 per cent of cyanamide (see Group III).  According to example 2, a 42 per cent aqueous solution of cyanamide is hydrated by means of 30 per cent (volume) sulphuric acid, the temperature of the reaction being maintained at 90 DEG  C.
Patent GB-657321-A (GB)
Title: Automatic toaster
IPC: A47J37/08
Filed: 1948-08-17
Abstract: 657,321. Thermal switches. DEHN, S. G. (Sunbeam Corporation). Aug. 17, 1948, No. 21721. [Class 38(v)] [Also in Groups VI and XIII] The wave shaped bimetal strip 210 on sufficient heating up snaps away from the stop 224a, Fig. 12, to strike a pin 257 thereby moving the attached contact 173 away from 174 to open the circuit. The bimetal 210 is adjusted for length between its top and bottom fixings by a screw 213. Colour control of toast being made is arranged by a hand-lever 38 which moves the stop 224a in relation to the midposition of the bimetal 210. If it is further away the bimetal must assume a more bent position before it snaps over to cut off the heating, thus giving darker toast. Toasting also may be manually terminated by thumb pressure on a plunger 42, Fig. 5 (not shown), which moves the stop 224a against the bimetal 210 thereby causing 210 to snap over at once against the pin 257 and move it to open the switch 172. Specifications 564,991, 639,393, 657,322, [Group XIII], and U.S.A. Specifications 2,347,385 and 2,332,518 are referred to.
Patent GB-823169-A (GB)
Title: Apparatus for determining micro vapour pressure
IPC: G01N7/14
Filed: 1957-07-10
Abstract: 823,169. Determining vapour pressure. ESSO RESEARCH & ENGINEERING CO. Feb. 12, 1958 [July 10, 1957], No. 21844/57. Class 106 (2). Apparatus for determining vapour pressure comprises a manometer 15, a sample receiving chamber 1, the volume of which is partially definable by the level of mercury in one leg 9 of the manometer 15, means 7 for evacuating the chamber 1 and heat-exchange means 41 for maintaining the temperature of the chamber 1 substantially constant. The chamber 1 has a receptacle 22 containing mercury attached to it, the two being in communication through an orifice 23, which can be closed by a plug 24. In operation, the mercury in leg 9 is raised just above a valve 13 which is then closed. The level in leg 14 is then adjusted to be approximately 76 cm. below a mark 10 at the upper end of leg 9. This is accomplished by vertical movement of a container 18. The chamber 1 is then evacuated. Valve 13 is then opened and the mercury in leg 9 adjusted to the level of the mark 10. Plug 24 is raised, and mercury from the receptacle 22 allowed to reach a mark 19 in the drain-pipe 2 from the chamber 1. When this has been done, the level of mercury in leg 14 is noted. Valve 12 is closed and a sample of the liquid to be tested is introduced by a special pipette (not shown) into the chamber 1 through the orifice 23, the volume of the sample being about <SP>1</SP>/ 5  the volume of the chamber 1. The level of mercury in pipe 2 is re-adjusted to the mark 19, valve 12 opened and the level of mercury in leg 9 brought to the mark 10. When steady, the height of the mercury in leg 14 is noted, the difference between the readings being a measure of the vapour pressure of the liquid. A formula is given for converting the value found into Reid Vapour Pressure.
Patent GB-915362-A (GB)
Title: Improvements in or relating to safety devices for nuclear reactors
Inventor: JONES PETER HARRIS
IPC: G21C19/115
Filed: 1959-06-25
Abstract: 915,362. Reactor control rods. ROLLSROYCE & ASSOCIATES Ltd. June 2, 1960 [June 25, 1959], No. 21909/59. Class 39 (4). A neutron-absorbing rod can be locked in a fully-inserted position in the core of a reactor, the lock being operated by tilting of the reactor. Fig. 1 shows a support rod 10 for an absorbing rod, passing through a safety device and in the fully-inserted position. The safety device contains a frusto-conical surface 16 and a ball cage 20 with sloping ramps 30c; the rod 10 has a neck 24. If the reactor is tilted, at least one of the balls runs along its ramp to engage the rod 10, becoming jammed either between a flange 14 and one end of the neck on the rod, or between the thicker part of the rod and the frusto-conical surface. The safety device is held in the reactor by external dogs 13a which pass between fixed dogs and are then rotated below the fixed dogs, being prevented from further rotation by a collar with dogs 30 engaging holes in the safety device and slots in a fixed part 12 of the reactor. The control rods are cruciform in section and arranged so that each fuel element can be almost surrounded by absorber.
Patent GB-517349-A (GB)
Title: Improvements in or relating to control arrangements for x-ray apparatus
IPC: H05G1/46
Filed: 1938-07-25
Abstract: 517.349. Controlling X-ray apparatus. GENERAL ELECTRIC CO., Ltd., and CALDWELL, J. T. July 25, 1938, No. 22053. [Class 38 (iv)] In a control for X-ray apparatus of the kind comprising separate means for controlling the value of the high-tension current through the tube and for adjusting the time of exposure, the two controls are independently adjustable but are interlocked so that the time of exposure cannot exceed the safe maximum corresponding to the value of the high tension current. In the form shown, high-tension current is supplied to the tube from a transformer 2 the primary of which is fed from an auto-transformer 4 by way of a contactor 5 with an operating winding 6. The filament heating transformer 7 is also supplied from the transformer 4 by way of a tapped choke or resistance 9, by which the filament current, and hence the high-tension current, is controlled. The duration of the exposure is determined by a rotary time switch 10, which is driven by a synchronous motor 19 through a magnetic clutch 20 and operates contacts 11 in the circuit of the operating coil 6 of the contactor 5. During the exposure, the wiper 13 rotates anticlockwise and completes the circuit of the coil 6 by bridging a segment 14 and one of a number of segments 15. The latter are connected to corresponding contact segments 18, any number of which may be connected in parallel according to the position of a wiper 17 which rotates with the switch 16 which determines the current through the tube. In the position shown the minimum current of 100 milliamperes is employed, 'all the segments 18 are in parallel, hence all the segments 15 are in circuit, and the maximum exposure of 10 seconds may be given. As the switch 10 is set successively to each higher current value the wiper 17 passes off one of the segments 18 and the corresponding segment 15 becomes dead, so that should the time switch have been set for too long an exposure the exposure actually given will not commence until the wiper 13 has moved on to the first live sector 15, corresponding to the maximum safe time. The choke 9 may be omitted, the switch 16 selecting tappings on the transformer 7.
Patent GB-275804-A (GB)
Title: Improvements in rear screens for use on motor vehicles
IPC: B60J1/00
Filed: 1926-09-08
Abstract: 275,804. Wal-Car Equipments, Ltd., and Walford, R. S. Sept. 8, 1926. Wind-screens.-In a wind-screen for the rear seats of a motor-vehicle of the kind comprising two panels normally arranged to form a V, the outer edge of each panel 2, 2 is mounted upon the free edge of a door 6 so that the panel is swung forwardly by the opening of the door. while the inner edge of each panel is supported by a jointed arm 8, 9 pivoted to the back of a front seat 11, the arrangement allowing the front seats to be adjusted without disturbing the setting of the screen. The jointed arm preferably comprises a longer link 9 pivoted to a bracket 10 and shorter link 8 having a socket to receive a peg 4 depending from the panel, the peg being releasable from this socket and en. gage able with a second socket 12 on the door when the panel is to be used as a side screen. The panels may also be released from engagement with the door and folded flat against the back of the front seats and held by spring studs 13 on the seats engaging holes 14 on the links 8.