baber/WOPTO huggingface dataset:
Patent GB-154545-A (GB)
Title: Improvements in electric transformers for feeding metal vapour rectifiers
IPC: H02M7/06
Filed: 1920-11-26
Abstract: 154,545. Soc. Anon. Brown, Boveri, et Cie. Nov. 27, 1919, [Convention date]. Transformers; phase, changing. - Metal-vapour rectifiers are fed with current having a large number of phases by employing a a combined star and polygon connexion of the secondary windings of a three-phase transformer. Four equal secondary windings, connected as shown in Fig. 1, are employed in each phase, 01, 1<1>0, 23<1> and 32<1> being the windings for the first phase. Twelve phases may be obtained from tappings a, b, c, d - - on the windings 13<1>, 3<1>2 - Fig. 2, the points a, b - - being the apices of a regular dodecagon. By additional tappings p, q, r - - on the star-connected windings 01, 03<1> - -, eighteen phases may be obtained. The transformer may feed a single rectifier having a number of anodes corresponding to the number of phases, or two or three rectifiers, each with six anodes, may be fed from the same transformer.
Patent GB-176458-A (GB)
Title: Improvements in or relating to railway signals
IPC: B61L23/12
Filed: 1920-11-26
Abstract: 176,458. Stockdale, R. H. Nov. 26, 1920. Combined electrical and mechanical systems, non-automatic; signalling instruments.-Signalling instruments for use on single track systems are provided in the sending and accepting portions with a self sustaining relay. Specification 15548/12 is referred to. The acceptance key comprises a rotary contact-maker 12 controlling connections to a series of fixed brushes and a cam-actuated plunger 20 which closes contacts 21 whilst the key is moved from normal to acceptance. in which position it becomes locked by a bell-crank lever 121 entering a notch 14. This lever is removed by energization of the polarized relay 34 as the train leaves the section over the treadle or like contact 62 and the relay remains energized by the sustaining circuit from the battery 340 until the key is replaced by its spring. The closing of the contacts 21 at station B energizes the acceptance relay 22 at B through contacts 25 on the signal which are closed only if the signal is normal and a hand-operated switch 32 on the semaphore. Relay 22 closes a sustaining circuit from earth through its coils and armature from battery 220, brushes 4, 2, indicator windings 271 at B and A, brushes 1, 3 at A. resistance 291, and armature 231. The indicator at B shows " train coming " on a flag 273 secured to the acceptance key. The. indicator winding 271 at A causes its flag to show " train going." The despatching plunger 29 at A is then depressed, and the despatching relay 23 is put in parallel to the resistance 291, its armature 231 is drawn over and cuts out this resistance and contact 233 completes a holding circuit so that, when the plunger 29 is released, the relay 23 is energized from battery 30 by a circuit including coil 272 of indicator at A, which then shows " train going," contact 26 on the semaphore, lock-release magnet 31, and handoperated switch 32. The line circuit is broken at armature 231. The signalman at A can then clear the signal, the movement of which opens the contacts 25 on the semaphore in order to prevent the effective use of the acceptance key at A. The signal is reset automatically by the train. On replacing the signal lever, the trip switch 26 is opened and de-energizes the'relay 23, thereby restoring all apparatus at A to normal. As the train passes out of the section, it closes the contact 62 and releases the acceptance key at B as above described.
Patent GB-942892-A (GB)
Title: Improvements in or relating to guides or runways for sliding window panes
Inventor: GREGORY CHARLES HERBERT
IPC: E06B3/46
Filed: 1960-09-29
Abstract: 942,892. Sliding windows. SILENT CHANNEL CO. Ltd. Sept. 29, 1961 [Sept. 29, 1960], No. 33550/60. Headings E1J. A channel section for a sliding vehicle window pane is formed from extruded or moulded thermoplastic material such as nylon, acrylonitrile-butadiene-styrene plastics or acetal resins. Curved flanges 4, 6 hold the pane against vibration and a resilient strip 11 or tube 13 provides further cushioning.
Patent GB-335817-A (GB)
Abstract: 335,817. I. G. Farbenindustrie Akt.- Ges. Nov. 26, 1928, [Convention date]. Sulphonates of pyridine and its homologues.- In the sulphonation of pyridine and its homologues, mercury or a mercury salt is employed as catalyst. Examples are given of the preparation of (1) calcium and sodium-alpha-picoline-#-sulphonates by treatment of alpha-picoline with fuming sulphuric acid in the presence of basic mercury sulphate and conversion of the product with the respective salts; (2) #-pyridine sulphonic acid by sulphonation of pyridine using mercury as the catalyst. The Specification adverts to the prior use as catalysts in this connection of aluminium, magnesium, chromium, potassium and ferric salts, and of vanadyl sulphate.
Patent GB-484730-A (GB)
Title: Improvements in and relating to incendiary bombs
IPC: F42B12/44
Filed: 1936-12-07
Abstract: 484,730. Incendiary bombs. MOURLAQUE, G. A. Dec. 7, 1936, No. 33583. [Class 9 (i)] An incendiary bomb, more particularly intended to be dropped from aircraft, comprises a casing forming a receptacle for an inflammable fluid charge, a mechanical device for igniting the charge and a receptacle containing a gas under pressure, the ignition device being arranged so as to be operated by the fluid charge when the latter is forced out of the casing in a rearward direction by the gas released from the receptacle on impact of the bomb. As shown, the bomb comprises a casing A filled with an inflammable charge N, such as gasoline, alcohol or acetone, and containing a receptacle B filled with a gas under pressure. The neck of the receptacle, which is normally closed by a diaphragm b, is screwed into a union C<1> on the nose cap C, the bore in which is closed by a, disc O of lead &c. held in position by a ring P. Holes p in this ring register with passages c in the union C<1> A striker D adapted to slide in the bore in the nose cap is held in its inoperative position by a spring E, the spring and head of the striker being enclosed in a protecting cap F. The ignition device comprises a block G, which may be made of a combustible material such as celluloid, screwed into the part a and hollowed out at g to receive a spindle J having vanes j at its lower end. The upper end of this spindle carries an emery wheel I which, when caused to turn, rubs against the flints Q pressed into contact with the wheel by adjustable springs q. The chamber g communicates with the outside through passages H and is normally cut off from the inside of the casing by a diaphragm U of lead &c. The block G is formed at its lower end with passages in which are disposed the upper end s of a number of tubes S which are centred in the casing by a spider L and the lower free ends of which are situated near the passages c. A cap T covering the ignition device is removed when the bomb is to be used. The casing is also provided with hollow fins M open along their inner faces at m and filled with a combustible substance, such as resin. In operation, the striker D on impact perforates the diaphragms O and b and the gas under pressure escapes from the receptacle B through the passages c into the casing A so that the charge N is forced through the tubes S. The charge, now under pressure, breaks the diaphragm V and enters the chamber g causing the vaned spindle J and wheel I to rotate so that sparks are produced by the friction between the wheel and the flints Q. The charge leaves the chamber g through the passages H and is ignited by the sparks and bursts into flame as does also the combustible material in the fins M.
Patent GB-752060-A (GB)
Title: Improvements in or relating to rotary exhausters and the like
Inventor: BARNES NEVILLE ADRIAN
IPC: F04C18/352
Filed: 1954-11-19
Abstract: 752,060. Rotary pumps. CLAYTON DEWANDRE CO., Ltd. Nov. 19, 1954, No. 33591/54. Class 110(2) A rotary exhauster or the like particularly for a servo-braking system, of the radially outwardly sliding vane type has a spring loaded end sealing plate, an air inlet valve to maintair a predetermined vacuum and means to connect an engine oil circulation system to the in. terior of the exjhauster for lubrication purposes The suction port 6 communicates through a .recess 28 and a passage 27 with a chamber 26 of a spring loaded ball valve 23 closing a port 24 which communicates with the atmosphere, the valve opening and admitting air to the suction port 6 when a predetermined vacuum is exceeded. The vanes 4 are guided on cylindrical cam rings 17, 18. An annular sealing plate 8 with an outer expanding ring 9 is pressed by springs 13 against edges of the vanes 4 and is prevented from rotating by studs 10. The lubricant supply is connected to a port 20 from which passages communicate with rotor bearings 14, 15. Specifications 563,454, 752,061, 752,062 752,063 and 752,064 are referred to.
Patent GB-1091088-A (GB)
Title: Multi-layer conveyor belts and a process for the preparation thereof
IPC: B29C65/00
Filed: 1965-08-05
Abstract: 1,091,088. Laminates. W. LAMPERT, F. C. LAMPERT and U. F. VON VARNBULER. Aug. 5, 1965. No. 33664/65. Heading B5N. A multi-layer conveyer belt has a core of a plurality of fabric sheets 10 interconnected by polyvinyl chloride layers 12, and an outer cover part 8 comprising a fabric sheet 2 having on its inner surface a polyvinyl chloride layer 6 and on its outer surface a rubber 4. As described the part 8 completely surrounds the core and has its edges joined by a strip 16 of polyvinyl chloride, or of polyvinyl chloride and a vulcanized natural or synthetic rubber. The strip 16 is in contact with the layer 6 and one or more of the layers 12. The rubber 4 may be vulcanized natural or synthetic rubber. The belt is formed either by laminating the sheet 2, layer 6 and rubber 4 separately from the core, and then laminating the cover sheet and core together, or by placing the various constituent layers sequentially in position and then laminating the whole assembly by application of heat and/or pressure.
Patent GB-963559-A (GB)
Title: Methylene bis thiophosphorus esters
IPC: C07F9/40
Filed: 1962-09-03
Abstract: The invention comprises compounds of formula: <FORM:0963559/C1/1> where R, R1 and R2 are the same or different and are each C1-4 alkyl, R3 is a C1-4\t aliphatic radical, styryl or phenyl, and Z is oxygen or sulphur, at least one being sulphur. Specified R3 groups include alkyl, alkenyl and haloalkyl groups They are prepared by reacting a halomethyl thiophosphorus ester <FORM:0963559/C1/2> with a compound <FORM:0963559/C1/3> in the form of a salt or in the presence of a basic condensing agent; one of the groups a, b, a1 and b1 represents R3 and the remainder OR, OR1 and OR2 and X is halogen. A solvent may be used.  The products are insecticides (see Division A5).ALSO:Insecticidal compositions comprise an organophosphorus compound of formula <FORM:0963559/A5-A6/1> where R, R1 and R2 are each C1-4 alkyl, R3 is a C1-4 aliphatic radical (e.g. alkyl, alkenyl or haloalkyl), styryl or phenyl, and Z is oxygen or sulphur at least one Z being sulphur (for preparation see Division C2).  Solutions and emulsions are specified.
Patent GB-521433-A (GB)
Title: A new or improved tool for use in stripping the insulation from electric cables
IPC: H02G1/12
Filed: 1938-11-19
Abstract: 521,433. Cable stripping pliers. MAJOR, P. C. Nov. 19,1938, No. 33717. [Class 61 (ii)] A cable stripping tool comprises a number of blades 21 each connected by a pivot 22 to a ring 10 secured to a handle 12 and by a pin and slot 23, 24 to a face plate 25 connected by screws 26 to a ring secured to a second handle 13 normally held by a spring 15 away from the handle 12 such that when the cable end is entered in the opening 27 gripping of the handles causes the blades to be moved inwards and tangentially to effect a shearing cut on the cable insulation, the depth of such cut being limited to avoid damage to the metallic conductor by a cooperating stop 30 on one ring and an adjustable contact screw 31 on the other ring. To adapt the tool for cables of different sizes the ring 10 carrying the pivots 22 may be angularly adjusted by means of a cover plate secured by screws 39 to bosses 40 on a ring 36 integral with the handle 12, the cover plate having a headed stud 43 passing through a hole therein and through a slot 49 in the ring 10 whereby the latter may be clamped in different angular positions relative to the cover plate.
Patent GB-771916-A (GB)
Title: Improvements in or relating to adjustable vehicle seats
IPC: F16D41/16
Filed: 1954-11-22
Abstract: 771,916. Adjustable seats. FORD MOTOR CO., Ltd. Nov. 22, 1954 [Nov. 20, 1953], No: 33754/54 Class 52 (2). A seat frame 10 is vertically adjusted by links 22, 23 pivoted on the vehicle floor, opposed pairs being coupled by a transverse bar 84, Fig. 6,. which can be swung to rock the links by means of screw and nut mechanism mounted on the vehicle floor and directly connected, preferably by a bell-crank 64 and link 73, to the bar. The screw 58 is rotated by a transverse shaft 53 and two-way ratchet handle 91 and the links 22, 23 are preferably bell-cranks arranged to lift slide tracks on which the seat is mounted as described in Specification 771,915.
Patent GB-1157876-A (GB)
Title: Improvements in Forging Machines
IPC: B21J7/24
Filed: 1966-07-27
Abstract: 1,157,876. Forging hammers. KOBE STEEL Ltd. 27 July, 1966 [27 July, 1965], No. 33769/66. Heading B3H. A forging hammer has its tup 4 raised by two pairs of jacks 7, 8 respectively which operate on alternate forging cycles. The tup 4 passes through a gas pressure cylinder 1 and carries an upper piston 2 engageable within a chamber 3 to which pressure gas may be admitted through valve 6 and conduit 20 for initiating the downstroke. The workpiece which may be heated, is supported on anvil 21 mounted on a spring- loaded block 22. The latter carries two pairs of diagonally opposite jack cylinders 9, 10 respectively containing lifting jacks 7, 8 respectively operated by pressure oil. Each jack carries a pawl assembly 13 which engages the underside of the tup. The pawls co-operate with fixed pistons 15 and are withdrawn by admission of hydraulic fluid. After a forging stroke the two opposite jacks 7 are energized to raise the tup until piston 2 enters chamber 3 whereby the tup will then be held in its upper position by gas pressure in cylinder 1; the pawls are then withdrawn. After the next forging stroke the tup is raised by the other pair of jacks 8. The pawls may alternatively be actuated mechanically.
Patent GB-933600-A (GB)
Title: Improvements in or relating to structural building elements
IPC: A47B96/14
Filed: 1959-10-06
Abstract: 933,600. Structural members. WALZWERKE HOHENLIMBURG HOESCH A.G. Oct. 6, 1959 [Oct. 6, 1958], No. 33856/59. Class 20 (2). Angle or channel-sections have in each flange 12, 13 one or two lines of slots to receive bolts, successive slots in a line being respectively aligned with and transverse to the line. Carrier junctions may be strengthened by plates 26 provided with suitable holes.
Patent GB-450294-A (GB)
Title: Improvements in or relating to a typewriter attachment for handling continuous duplicate record sheets
IPC: B41J17/00
Filed: 1935-12-06
Abstract: 450,294. Carbon papers. COPELAND, R. J., 85, Richmond Street West, Toronto, Canada. Dec. 6, 1935, No. 33889. [Class 16] [See also Group XVI] A carbon-sheet pack for use in manifolding on typewriters, consists, as shown in the Figure, of carbon sheets 30 secured to a backing-sheet 29 provided with a bar 26 having studs 27 which co-operate with the platen to arrest the pack. The front end of the backing-sheet forms a pocket 291 for receiving a loose sheet X.
Patent GB-507148-A (GB)
Title: Springs, more particularly for vehicles, machines and other apparatus
IPC: F16F1/44
Filed: 1937-12-07
Abstract: 507,148. Road - vehicle undercarriages. SCHIEFERSTEIN, G. H. Dec. 7, 1937, No. 33902. Convention date, Nov. 4. [Classes 108 (ii) and 108 (iii)] [Also in Groups XXV, XXIV, and XXXI] A universal joint which may be used as a driving coupling, a hinge or a spring comprises an ellipsoidal head a surrounded by an envelope g of rubber or like resilient material and an outer rigid casing b. The rubber is preferably adhesively secured to the head and the easing. The outer. casing may be made in two parts secured together by beaded flanges. The axis of rotation of the ellipsoid is substantially different from the other axes and may be either longer or shorter. Figs. 5 and 6, respectively plan and elevation, show a resilient support for a front wheel of a motor car. The resilient joints b<2> connected to the wheel support may have the axis of revolution shorter than the other axes. Fig. 8 shows a method of mounting a rear-wheel and this wheel is driven. by a shaft k with a flexible coupling b<3>.
Patent GB-380307-A (GB)
Title: Improved frame or guide for sliding windows of vehicles and the like
IPC: B60J10/04
Filed: 1931-12-07
Abstract: 380,307. Vehicle - window frames. REID, J. S., 14122, South Park Boulevard, Shaker Heights, Ohio, U.S.A. Dec. 7, 1931, No. 33930. [Class 20 (iii).] A channel guide, particularly for sliding window panels of vehicles, comprises a rubber and felt-covered metal member in the form of a slit tube and two separate members 15 inserted between the edges of the guide and the sides 2 of the groove. The members 15 may be held by inturned edges thereon with or without serrations engaging the sides of the guide, or having one inturned edge engaged in a recess 8. The members 15 may also be secured by flat parts having serrations engaging the material of the guide.
Patent GB-509979-A (GB)
Title: Improvements in frames for bifocal spectacles
IPC: G02C5/12
Filed: 1938-11-22
Abstract: 509,979. Spectacles. CSEREP, S. Nov. 22, 1938, No. 33973. Convention date, Nov. 22, 1937. [Class 97 (i)] In a frame for bifocal spectacles, having a rigid bridge connecting the rims and a nose rest behind the bridge and vertically adjustable in relation thereto to enable the lenses to be moved up or down in front of the eyes, the ends of the nose rest have attached thereto wires &c. guided around the peripheries of the rims and held in any adjusted position by their own resilience. As shown, the rear surface of each rim 2 is provided with two channels 5, 6 through which passes the wire 7 connected to the nose rest 4. In the gap between the channels the wire carries a stop 8 having a thumb-piece 9 so that the length of this gap determines the distance through which the rest 4 can be moved. The natural shape of the wire is such that it has to be constrained to enter the channels so that it bears on them frictionally by its own resiliency. By drawing together the thumb-pieces, the rest 4 is lowered so that the lenses are raised in relation to the eyes to facilitate the use of the reading segments 1b.
Patent GB-1483215-A (GB)
Title: Infrared measuring circuits
IPC: G01B11/06
Filed: 1974-08-01
Abstract: 1483215 Measuring the thickness of colour photographic film INFRA SYSTEMS Inc 1 Aug 1974 [24 Aug 1973] 34070/74 Heading G1A An apparatus for measuring the thickness of a "black and white" photographic film 10 is modified to enable it to measure colour film. The apparatus, originally just detected the amount of specularly reflected infra-red light from the front surface 12 and back surface 14 of the film with the incident light beam alternately having an absorbtion wavelength and a reference wavelength. The modification involves employing an extra detector 26 and a filter 28 designed to measure the amount of scattered light of the reference beam wavelength. This scattered light is due to the light scattering effect of the pigments 24 in the colour film. The detector outputs are fed to processing circuitry 20 which comprises a ratio circuit 38 that ratios successive outputs due to the absorption and reference beams. The detectors 18 and 26 are connected by a voltage divider 30 as shown in Fig. 3, such that the voltage generated by the detectors oppose one another. The apparatus is then calibrated in the standard manner with a clear film sample so that the indicator 22 reads the correct thickness. Then a piece of "colour" film of the same thickness is used (resulting in the ratio being disturbed and the potentiometer 30 is adjusted to restore the ratio back to the previous value as measured by the indicator 22, thereby mitigating the effect of scattered light due to the pigment 24.
Patent GB-447919-A (GB)
Title: Improvements in and relating to electric discharge lamps
IPC: H01J61/34
Filed: 1934-11-27
Abstract: 447,919. Discharge lamps. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, and SCOTT, W. J., Rainsbrook Avenue, and FENWICK, C. E., 10, Bilton Road, both in Rugby. Nov. 27, 1934, No. 34094. [Class 39 (i)] An electric discharge lamp, such as a sodium lamp c, is supported within a container comprising two concentric bulbs a, b forming a Dewar vessel which is sealed to a single stem d. The stem may be of conventional form, as shown, with bulbs a, b sealed simultaneously to it, or bulb b may be sealed to bulb a before sealing to the stem, or a stem of " mushroom " type may be employed. The space between the Dewar vessel and the lamp may be evacuated or filled with hydrogen to minimize blackening and to increase the uniformity of temperature of the lamp, or a filling of a rare gas such as neon or argon at a low pressure may be used to minimize the effect of leakage between the lamp and the inner space. If both spaces are evacuated, a communicating passage may be provided to enable them to be evacuated simultaneously through the stem tube ; otherwise, the outer space is evacuated through an external tubulation. The lamp may be supported by bent wire spacers within the inner bulb. Mica or metal discs may protect the stem seal from the heat of the lamp. A ballast resistance may be provided within the inner space, which may also contain reflectors.
Patent GB-195137-A (GB)
Title: Improvements in lamps
IPC: F21V5/00
Filed: 1921-12-19
Abstract: 195,137. McElroy, F. C. Dec. 19, 1921. Search - lights; projectors; vehicle lamps.-A supplementary reflector 14 is attached inside the lamp to the glass front 9, in front of the ordinary reflector and the light source, with its convex face towards the light source and with its edges or rear part against the inner surface of said glass.
Patent GB-932078-A (GB)
Title: Preparation of high-density compactible thorium oxide particles
IPC: C01F15/00
Filed: 1961-09-25
Abstract: High density thorium oxide particles, of 1-2 mm. in diameter, are produced by forming a gel comprising thorium oxide containing 3,5-7 weight per cent residual volatile substances, said residual volatile substances comprising substantially equivalent proportions of nitrate ion and water, by drying a nitrate ion containing sol. at a temperature from 50 DEG -100 DEG C., slowly heating said gel to a temperature of at least 450 DEG C., the temperature increase not exceeding 100 DEG C. per hour and rapidly calcining the resulting heated solid at a temperature of at least 1150 DEG C. Uranium in amounts up to 8 weight per cent of the total metal content may be incorporated in the thorium oxide sol.  The original sol. can be prepared by contacting thorium nitrate with steam at a temperature under -400 DEG C., until the residual volatile nitrate ion and water content of the resulting oxide is within the range of 3,8-5,5 weight per cent. Alternatively, the original sol. can be prepared by dispersing thorium oxide, prepared by calcining thorium oxalate at a temperature of 650 DEG -800 DEG C., in an aqueous nitrate ion system at a thorium-to-nitrate ion molar ratio of 1,9-3,0, evaporating the resulting dispersion at a temperature of 125 DEG -150 DEG C. and then redispersing and evaporating until the volatile nitrate ion and water content of said solids is within the range of 5-7 weight per cent. Uranium can be conventionally added to the sol. as ammonium dueranate, uranyl nitrate hexahydrate, uranium trioxide or hydrated uranium trioxide.