baber/WOPTO huggingface dataset:
Patent GB-748977-A (GB)
Title: A display or advertising device
IPC: G09F1/04
Filed: 1953-11-11
Abstract: 748.977. Showcards. THOMAS, P. R., and NEWMAN, F. G. Nov. 4, 1954 [Nov. 11, 1953], No. 31293/53. Class 3(2) An advertising or display device for mounting on a can, Fig. 1 comprises a cardboard sheet 1 which is provided with fold lines 2, 4, 5, slots 8, an arm 3 and wings 6, 7. The device is folded about the line 2 and positioned on the can with the curved edge of the wings in contact with the inner edge of the rim of the can and the arm 3 in contact with its outside wall; the rim of the can being located in the slots 8. In a modification (see Fig. 1 of the Complete Specification, not shown), the device is provided with a bridge piece 9 between the' arm and the wings whereby it can be mounted on a can having a lip into which a lid is press-fitted. Again, the device may be shaped as shown in Fig. 2 and provided with an arm 3 and fold lines 15, 16, the device being folded first about the line 15 and then about the line 16 to form two opposed wings of different thicknesses.
Patent GB-604037-A (GB)
Title: Improvements relating to electric current rectifiers
IPC: H01L21/10
Filed: 1945-11-21
Abstract: 604,037. Asymmetrically-conducting resistances. LUCAS, Ltd., J., SILMAN, H., FREEMAN, A., and JOACHIM, H. S. Nov. 21, 1945, No. 31392. [Class 37] Selenium rectifier having incorporated with the selenium a phenol having a halogen substituent in the nucleus, or a mono-nitrated halogen-substituted phenol, or an alkali metal or alkaline.earth salt of a phenol having a halogen substituent in the nucleus, or a homologue thereof, in the proportion of about .01- 1.0 per cent. Three examples are given.
Patent GB-428297-A (GB)
Title: Improvements relating to concrete slab piling
IPC: E02D5/12
Filed: 1933-11-11
Abstract: 428,297. Piles. ROTINOFF, G. A., and ROTINOFF, A. M., (Representatives of ROTINOFF, A. G.), 36a, Queen's Gate, South Kensington, London. Nov. 11, 1933, No. 31505. [Class 68 (ii)] The edges of concrete-slab piles are connected by intermediate members engaging with tension members in the piles. The Figure shows a part of a wall comprising concrete slab piles b with tension members a extending through them at intervals in the length of each pile. Each member a has a head d, and the adjacent heads are connected by long members c, which may be withdrawn as the recessed edges of the slabs are filled, e.g. by forcing concrete under pressure down a central hole, not shown, in the member c. In modifications, the members a are in pairs with hooked ends which embrace flanges of I- or square-section connecting members c. Similar devices may be used for connecting the sides of large piles or small caissons. The parts a may extend inwards from the edges of the slabs or caissons, but need not extend right through. In another form, the parts a are in the form of bands, embracing the piles and comprising channel-section or T- section parts for the reception of I - section connecting members c. The recesses in the edges of the slab may be formed with secondary recesses to facilitate the insertion of water pipes for cleaning the edges of the piles, and for other purposes.
Patent GB-866269-A (GB)
Title: Improvements in drafting rollers for spinning frames
Inventor: WHITEHEAD JACK
IPC: D01H5/74
Filed: 1958-10-03
Abstract: 866,269. Drafting rollers. RYDER & SON Ltd., THOMAS. Aug. 17, 1959 [Oct. 3, 1958], No. 31594/58. Class 42 (2). [Also in Groups IX and XXXIV] Drafting rollers which are said to be free running, not to require lubricating and to obviate the necessity for cleaning comprise a centre shaft in two spaced apart nylon bushes in contact with the rollers, there being a centre member around a shaft extending between the rollers which engages the nylon bushes. Rollers a, b are attached by circlips i to nylon bushes c, d, rotatably mounted on a shaft g on which a steel member e is mounted. Square-section nylon bushes h serve to mount the rollers in cap bars, cavities h<SP>1</SP> being provided for truing the rollers. In other embodiments the bushes h are omitted and the rollers supported by the member e. In two further embodiments fixed boss rollers are mounted on nylon bushes in recesses of the member e and in one embodiment square section bushes are provided as in Fig. 2 for mounting in a cap-bar.
Patent GB-892873-A (GB)
Title: Improvements in liquid-insulated electric cables
IPC: H02G15/26
Filed: 1960-09-14
Abstract: 892,873. Liquid-insulated cables. ANACONDA WIRE & CABLE CO. Sept. 14, 1960 [Sept. 23, 1959], No. 31663/60. Class 36. Periodic thermal expansion and contraction of the oil in an oilfilled power cable 10 are utilized by unidirectional valves 22, 28 at each end of the cable to produce a flow of oil through the cable, so that degraded oil is replaced by fresh. Oil is circulated through the cable from a reservoir 24, containing reconditioned oil, to a degraded-oil reservoir 30, and a recycling system, including a reconditioning unit 37 may be employed. In the form shown, the cable comprises a single conductor 14, helically wrapped with paper tape 15 and covered with a lead sheath 16 whose inner surface has longitudinal grooves 18 through which, after installation of the cable, oil 19 is forced under pressure to impregnate the tape 15, but the oil may alternatively be circulated in the spaces between two or more separate conductors. A pipe-type cable (Fig. 3, not shown) is also described.
Patent GB-1157804-A (GB)
Title: Improvements relating to Circuits including Pick-Up Tubes
Inventor: LUBSZYNSKI HANS GERHARD
IPC: G06V10/12
Filed: 1965-07-24
Abstract: 1,157,804. Cathode-ray tube circuits. ELECTRIC & MUSICAL INDUSTRIES Ltd. 19 July, 1966 [24 July, 1965], No. 31669/65. Heading H4T. Areas on the target of a (vidicon) pick-up tube which are unscanned during the forward strokes of the line scan are scanned by one or more lines during line fly-back intervals. The invention is described as applied to a vidicon pick-up tube employed in a pattern recognition arrangement in which a document 1 is moved past the pick-up tube 4 the target of which is scanned by a single line scan in a position determined by a manually operated vertical shift control 14. As a consequence of the single line scan a voltage gradient exists between such line and the remainder of the target and to reduce the effect of this on the level of the video signals produced by the tube the beam intensity is increased during fly-back intervals by signals from the line scan generator 9 which also controls a step-waveform generator 13 supplying voltages varying in amplitude and polarity from line to line, which are superimposed on the vertical shift control voltage to vary the positions of the fly-back traces.
Patent GB-1024542-A (GB)
Title: An over and under voltage protection device using semi-conductors
Inventor: MORTERS RONALD WALTER
IPC: H02H3/20
Filed: 1961-09-04
Abstract: 1,024,542. Protective arrangements. HOUCHIN Ltd. Sept. 4, 1962 [Sept. 4, 1961], No. 31713/61. Heading H2K. [Also in Division H3] An under-voltage and over-voltage protective arrangement comprises a transistor CT having its emitter-base circuit connected to a potential dividing arrangement providing two non-linear paths of different resistance and effective at different voltage values to cause the transistor to change its state. As shown, one higher resistance path includes one or two Zener diodes 4, 5 connected between a tapping 6 on a potential divider 1 and the transistor base and a resistor 7. A lower resistance path includes two or three Zener diodes 10 ... 12 connected between a tapping 9 on the divider 1 and the transistor emitter and a resistor 8. The transistor is' non- conducting until the voltage applied to terminals 2, 3 reaches a lower value at which the diodes 4, 5 become conducting with the diodes 10 ... 12 remaining non-conducting. The resulting voltage drop across the resistor 7 biases the transistor CT into conduction and a relay RR in the collector-emitter circuit is operated. The transistor remains conducting until the voltage at the terminals 2, 3 reaches a higher value at which the diodes 10 ... 12 become conducting. The resulting voltages across the resistors 7, 8 are now such that the transistor is cut off and the relay RR is released. When the voltage at the terminals falls to an intermediate value the voltages across the resistors 7, 8 become such that the transistor again conducts. The complete drawing shows the use of the above arrangement, in conjunction with a frequency sensitive arrangement to protect a three-phase supply system.
Patent GB-1474406-A (GB)
Title: Unsaturated polyesters
IPC: C08G63/682
Filed: 1974-07-17
Abstract: 1474406 Tetrachloro-p-xylylene glycol ether DYNAMIT NOBEL AG 17 July 1974 [19 July 1973] 31766/74 Heading C2C [Also in Division C3] Example 1 describes (a) the proportion of 2,3,5,6 - tetrachloro - p - xylylene glycol bis- (2,2 - dimethyl - γ - hydroxypropylether) and 2,3,5,6 - tetrachloro - p - xylylene glycol from neopentyl glycol, sodium hydroxide and tetrachloro-p-xylylene dichloride, and (b) the preparation of the above ether from neopentyl glycol and tetrachloro-p-xylylene dichloride using magnesium chips.
Patent GB-1372782-A (GB)
Title: Method and apparatus for slitting a film
IPC: B29D28/00
Filed: 1972-07-07
Abstract: 1372782 Cutting films CONSOLIDATEDBATHURST Ltd 7 July 1972 [9 July 1971] 31854/72 Heading B5B  Films are cut by passing them under tension through a nip formed between at least one rotatable slitting roll 20 and a backing means, such as roll 18, pressing against slitting roll 20. The slitting roll 20 consists of a plurality of spaced apart blades 21 arranged circumferentially around the roll, the tips of blades 21 are heated to a temperature above the softening point of the film, for instance by means of gasjibs 40. The blade-tips "fusion-cut" the film and are removed after the cutting.  According to the arrangement of the blades 21 on the roller 20 various products may be produced. With the blades transverse to the roll axis tapes may be obtained. With the blades along the axis the film is slit in a transverse direction to give a product which may be stretched, for instance by tentering, to give an expanded product such as is illustrated in Fig. 4. If the temperature of the blade-tip is sufficiently high, the sides of the slits can adhere to each other at various points, this adhesion forming thin filaments bridging the opening- produced by stretching the cuts. This is illustrated in Fig. 5. The films used in the examples are formed from nylon and polypropylene.
Patent GB-498094-A (GB)
Title: An improved catalytic method of and apparatus for cracking hydrocarbons
IPC: C10G11/18
Filed: 1937-11-19
Abstract: In vapour-phase cracking processes in which the hydrocarbon vapours are passed through a bed of catalyst, the catalyst grains are maintained in vibration by increasing from time to time the velocity of the vapours passing therethrough.  The catalyst bed during regeneration is similarly maintained in agitation by adjusting the velocity of the regenerating gas.  Oil is fed through line 1 and heating coil 3 into a reaction chamber 6 which is preferably <PICT:0498094/III/1> in the form of a conical frustum filled with catalyst supported on a grate 7.  The cracked vapours, preferably after passage through a second similar reactor 61 and a cyclone separator 10, are condensed in a cooler 9 and separator 11 where heavy unconverted fractions are separated and recycled through line 12 to the coil 3.  The light fractions are condensed in cooler 14 and separated from gases in receiver 15.  The intermittent vibration of the catalyst bed is obtained by recycling a portion of the cracked vapours through lines 17 by fans 18, the vapour preferably being heated in coil 21 mixed with steam admitted through line 19.  The catalyst is regenerated by admitting steam or flue-gas through lines 22, 23.  Catalysts specified include oxides or sulphides of metals of Group VI in admixture with lime, alumina, silica, magnesia.  A vapour flow equivalent to 3000 cu. ft. of vapour per hour, is sufficient to maintain the required agitation for catalysts of dimensions about 4 mm.
Patent GB-487225-A (GB)
Title: Improvements relating to electric switches and plug and socket connections
IPC: H01R13/707
Filed: 1936-11-23
Abstract: 487,225. Two-part couplings combined with switches. PARSONS, Ltd., C. H., and HANDLEY, G. B. Nov. 23, 1936, No. 31958. [Class 38 (i)] Closure of the switch of a switch-socket is prevented when the plug-member is withdrawn by a bolt m pivoted to a slide o pressed by a spring p towards the switch but drawn back when the earthing-plug s is inserted by a lever q moved laterally by the plug s and acting on the slide o. The bolt m slides in a guide on a carriage h that is slid upwardly, Fig. 2, when the switch a is closed as shown. When the switch is open and the plug s withdrawn the bolt m is moved by the spring p so that its end engages stop n and prevents movement of the carriage h. When the switch is closed the plug may be locked in the socket by a knife-edge on a lever x pressed into operative position by a spring v, but moved in the opposite direction by a lever w when the switch is opened, as described in Specification 487,224.
Patent GB-366517-A (GB)
Title: Photographic film free from halation
IPC: G03C1/825
Filed: 1930-10-24
Abstract: 366,517. Antihalation layers for photographic films. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. Oct. 24, 1930, No. 32019. Convention date, Nov. 5, 1929. [Class 98 (ii).] In preparing films with antihalation layers, the film support is first coated with an intermediate layer, soluble or capable of swelling in water or in the developing bath and a dye or mixture of dyes is applied to this without a binding agent, one of the dyes forming a lacquer-like coating. The intermediate layer may comprise gelatine, an albuminous substance, gum arabic, cherry gum, glucose or a cellulose ether, and may have a dye which does not stain the film, e.g. methyl blue, incorporated therein. The dyestuff applied to the intermediate layer may be aurine or a mixture of aurine and alkali blue.
Patent GB-1425307-A (GB)
Title: Process for the production of polyactones derived from poly- alpha-hydroxyacrylic acids
IPC: C07C51/377
Filed: 1974-07-19
Abstract: 1425307 Lactones of polyhydroxyacrylic acid SOLVAY & CIE 19 July 1974 [20 July 1973] 32081/74 Heading C3P Polylactones derived from a poly alphahydroxyacrylic acid of the formula are obtained by heating an aqueous solution of a dichloropropionic acid ClCR 1 R 2 -CHCl-COOH to above 100 C. and adding a polymerization catalyst; R<SP>1</SP> and R<SP>2</SP> are hydrogen or C 1 -C 3  alkyl. The catalyst is preferably potassium persulphate and may be added before or after the dehydrochlorination reaction or during it, e.g. when chloride ions first appear, in the reaction mixture. The lactones are water-insoluble and precipitate on formation. They may be converted to salts of the polyhydroxyacrylic acid for use as detergent builders.
Patent GB-248710-A (GB)
Title: Improvements in or relating to driving mechanism for electric railways operated by polyphase motors from a monophase line wire
IPC: B60L9/28
Filed: 1925-12-18
Abstract: 248,710. Kando, K. March 7, 1925, [Convention date]. Phase, changing.-Driving-mechanism for electric railways comprises in combination a synchronous monophase to polyphase transformer having a primary winding 2 of high inductance and a secondary winding 6, together with polyphase working motors 7 provided with shortcircuited armatures and connected to the secondary winding 6, the arrangement being such that during starting, acceleration and braking conditions, unity power factor is maintained in the primary circuit of the transformer. The starting resistances 11 in the excitation circuit 10 may be regulated automatically by the load current of the transformer, Fig. 3, and the regulator may have an adjustable stop 16 to limit the excitation. When pole-changing motors are employed resistances, inductances or transformers 17 are interposed between the motors and phase transformer and the pole-changing switch 13 can be positively connected with the switches of the devices 17. Specification 164,743, [Class 35, Dynamo-electric generators &c.], is referred to.
Patent GB-855562-A (GB)
Title: Fuel flow measuring device
IPC: G01F1/82
Filed: 1958-10-08
Abstract: 855,562. Electric fluid-flow meters. BENDIX CORPORATION, [formerly BENDIX AVIATION CORPORATION]. Oct. 8, 1958 [Oct. 24, 1957], No. 32146/58. Class 40 (1). [Also in Group XXIX] A rotary-type fluid flowmeter comprises an impeller giving rotary motion to the fluid and a driver element mounted on the same shaft and coupled to the impeller by a spiral spring, whereby the angular displacement between the impeller and the driver is indicative of of the mass fluid flow past the meter. Construction (Fig. 1). A sealed meter casing 14 is mounted inside a cylindrical housing 10, inserted in the fluid pipe, by an annular series of radial partitions (not shown), extending axially, leaving annular passages 18 for the fluid to flow through. Assembled inside casing 14 is a motor 20 driving a 3-phase selsyn winding 26 through gears 31-35 and a friction clutch 36. An annular series of magnets 38 is mounted on the rotor of windings 26, coupling with a similar series of magnets 41 mounted on a rotor 43 outside the meter casing 14, running on bearings 48, and attached to a back plate 49 by two rods 50. The rotor 43 drives an impeller 53 through a yielding connection comprising a spiral spring 60 connected to a stud 61 on plate 49, and to the impeller shaft 55, the impeller consisting of a circular wall 54, carrying a cylinder 57 provided with radial vanes 58 in alignment with the fluid passages 18. An annular series of magnets 63 mounted on the impeller couple with a similar series of magnets 64 driving the single phase, energized winding 27 of the selsyn. To avoid viscous drag on the impeller vanes 58, a cylindrical shield 69 is provided between the vanes and the wall of the housing 10, the shield being attached to the rotor back-plate 49 by flanges 71, 72, and to the other end of the rotor 43 by vanes 74. The shape of the metering unit is symmetrical to allow measurement of flow in either direction. Electrical circuit (Fig. 5). The two parts 26a, 27a of the selsyn transmitter 25a are rotated at equal speeds by the motor 20, but rotor 27a lags behind the stator windings 26a by an angle proportional to the mass rate of flow of the fluid. This angle is transmitted to receiver selsyn 84 and indicated on dial 91. The transmitter may alternatively be a tapped potentiometer 25b connected in opposition to a receiver potentiometer 96, adjusted by motor 88a which controls an indicator 91a. Balancing motors 88, 88a may each derive proportional signals from potentiometers 101, 101a which are added at A<SP>1</SP>, B<SP>1</SP> and fed to a motor 107, indicating at 109 the total mass rate of flow from different flowmeters. The sum of the voltages from potentiometers 101, 101a can also be fed to a motor 114 driving a counter 113 to indicate the total mass flow. The connections to the control winding 116 of motor 114 can be reversed by a switch 121 actuated by a propeller 125 when the fluid flows in the opposite direction.
Patent GB-828232-A (GB)
Title: Improvements relating to universal joints
IPC: F16C21/00
Filed: 1956-10-22
Abstract: 828,232. Universal joints. INA-ROULEMENTS S. A R.L., [trading as SAAR-NADELLAGER G.m.b.H.]. Oct. 22, 1956 [Oct. 21, 1955], No. 32153/56. Class 80 (2). [Also in Group XXXIV] In a universal joint, a needle roller axial thrust bearing 6 is interposed between the end surface of each arm of the cross 1 and the inner surface 8 of the corresponding yoke member. The needles are guided in a plane cage 7. Each arm is supported radially by needles 3, which bear with their ends 9, which are directed towards the axis of the cross, against a sealing- ring 10, and their opposite ends bear against the wall 11 of the cage 7. In order to ensure lubrication of the needle roller bearing, a central lubricant bore 4 is provided and the needle roller cage 7 comprises grooves 12 directed from the centre 13 of the cage to its outer periphery 14.
Patent GB-328955-A (GB)
Title: Improvements in and relating to induction electricity meters
IPC: G01R11/36
Filed: 1928-11-05
Abstract: 328,955. Ferranti, Ltd., and Ferranti, S. Z. de. Nov. 5, 1928. Induction motor meters for single-phase threewire spstems have two driving elements each of which is individually complete and electrically associated solely with one side of the system, as shown in Fig. 8, the series coils 28 in the main 1 having their associated shunt winding 26 connected between the mains 1, 2, and the series coils 29 in the main 3 being associated with the shunt coil 27 connected between the mains 2, 3. By this arrangement, should the circuit of either main 1, 3 be opened by its fuse, the driving element on the other portion continues to function. In the construction shown in Fig. 4, the series coils 28, 29 are wound on core which are supported by, but laterally offset from, the poles of a C-shaped core 21, which are arranged at the opposite ends of a diameter of the rotor 4. The shunt coils 26, 27 are carried by a separate core limb 21<1> beneath the disc. Two separate pairs of brake-magnets are provided at opposite ends of a diameter, preferably at right angles to that containing the driving magnets. By this construction both driving and braking torques are balanced, as described in Specification 247,248. Preferably the spindle 32 is supported by a magnetic suspension device 33, 34 as described in Specification 322,995. In a modification the driving systems are magnetically separate. In a further modification, Fig. 12, a shunt magnet core similar to that described in Specification 247,248 is employed, the centre limb being unwound and the shunt coils 26, 27 arranged around the portions 2, 3 and 2<a>, 3<a>.
Patent GB-1515307-A (GB)
Title: Image reconstruction
IPC: A61B6/03
Filed: 1974-07-20
Abstract: 1515307 Radiology EMI Ltd 7 July 1975 [20 July 1974] 32257/74 Heading H4F A method of constructing a representation of the distribution of absorption throughout a planar region i.e. slice, of a body, of the type described in Specification 1,283,915, comprises interpolating between the data signals representing the absorption of radiation (e.g. X-rays) along a plurality of substantially parallel paths in the plane of the region to provide further data signals representing the absorption of the radiation along an increased number of such paths, and allocating to each of an array of predetermined points in a field notionally delineated in the region the data signal or further data signal associated with the path whose centre line passes closest to that point, wherein the interpolation is achieved by forming signals representing differences of the data extending to order m (m#2), subdividing some of these difference signals and combining the subdivided differences by running addition. The interpolation may be based solely on the combination of subdivided differences of order m, e.g. second-order, n subdivided values may be provided for each mth order difference value to be subdivided, each being equal to the respective difference value divided by n<SP>m</SP>.