baber/WOPTO huggingface dataset:
Patent GB-868176-A (GB)
Title: Improvements in or relating to devices for setting a body relative to a rotatable member
IPC: B23Q17/22
Filed: 1959-07-07
Abstract: 868,176. Jigs. ALABASTER, C. July 7, 1959, No. 23367/59. Class 83 (3). A device for setting the distance of a workpiece from a rotatable member such as a tool spindle, comprises a sleeve 11 of non-conductive material, having a cap 12 screwed thereon, which has four apertures 13, at right-angles to each other, and windows 14 adjacent a bulb 5 connected to a battery 6. Pins 3, 4 at right angles to each other are slidably secured against the cap 12 by a plate 2 screwed thereon, and spring- urged balls 17. The sleeve is connected to a spindle 9 for connection to a drill-chuck, the spindle being surrounded by a further sleeve 22 and slidable in a plate 23 spring-urged against the end of the sleeve. The pin 3 has a length equal to twice the desired distance between the edge of the work and the spindle-axis, plus twice the required tolerance and pin 4 is twice the desired distance minus twice the tolerance. In operation the spindle 9 is inserted in the drill-chuck and the work is moved into contact with one end of the pin 3, thus completing an electric circuit, and a light can be seen through the windows 14. The device is rotated until the opposite end of pin 3 contacts the work and a further light is seen. The device is then rotated until the pin 4 is in contact, the position of the work being adjusted until only one end of the pin 4 contacts the work, but both ends of pin 3 remain in contact, and a light is only visible in three positions. The work can be set to a bi-lateral tolerance equal to one quarter of the difference in lengths of the pins.
Patent GB-592009-A (GB)
Title: Improvements in or relating to fluid-operated rams
IPC: F16G11/12
Filed: 1944-11-23
Abstract: Wire-tensioning mechanism used in the manufacture of pre-stressed reinforced concrete articles is as described in Specification 581,828, with a suitable restriction formed in the conduit connecting the bottom of the accumulator 32 and the liquid end of the cylinder, so as to restrict the rate of liquid flow to prevent damage to the cylinder if the wire slips or breaks under load.
Patent GB-598807-A (GB)
Title: Improvements in or relating to receivers incorporating super-regenerative amplifiers
IPC: H03D11/02
Filed: 1945-09-11
Abstract: 598,807. Super - regenerative valve circuits.. PATELHOLD PATENTVERWERTUNGS- & ELEKTROHOLDING AKT.- GES. Sept. 11, 1945, No. 23384. Convention date, Sept. 11, 1944. [Class 40 (v)] A super-regenerative amplifier has its oscillatory circuit coupled to the input circuit periodically at the quench frequency to prevent the built-up energy from reacting back on the input circuit. The coupling is established when the energy in the oscillatory circuit has been dissipated by quenching action, and is disconnected when the energy builds up again to the same level as the energy in the input circuit. In Fig. 1, circuit K (which may include a thermionic valve) couples input tuned circuit S to super-regenerative amplifier R controlled by a separate quench oscillator G which also controls the transmission ratio of coupling K through a phase adjusting network P. If a self-quenching amplifier is employed, the output from it is rectified for application to network P. Alternatively, the separate coupling circuit K may be eliminated and the control voltage u2 applied to cause periodic heavy damping of circuit S or periodic de-tuning of the superregenerative amplifier. In a modification, Fig. 2, the coupling involves a frequency change in modulator M produced by periodically interrupted oscillations from local oscillator O which is keyed by control voltage u2 and may be ganged with input circuit S for tuning purposes. The oscillatory circuit of amplifier R is then timed to the difference or summation frequency. Alternatively, oscillator O may operate continuously, when control voltage u2 is applied direct to modulator M. The output from amplifier R may be applied through a band filter to the modulator of a second stage, using the same quench oscillator. The quench frequency is applied to the second amplifier through a phase-adjusting network and build-up in the second amplifier is arranged to begin simultaneously with oscillations in the second local oscillator and when the first amplifier attains its maximum amplitude.
Patent GB-1382477-A (GB)
Title: Process for the preparation of hydrazo bis acetonitriles
IPC: C07C/
Filed: 1972-05-18
Abstract: 1382477 Hydrazobisacetonitriles PECHINEY UGINE KUHLMANN 18 May 1972 [18 May 1971] 23384/72 Heading C2C Hydrazobisacetonitriles, e.g. those having the formula  wherein R 1  and R 2  are alkyl radicals, or cycloalkyl radicals, containing up to 12 carbon atoms, or hydrocarbon radicals containing 6 to 12 carbon atoms including a benzene ring or R 1  and R 2  together form a C 3-11  alkylene radical, any of these radicals being optionally substituted by chloro, bromo, fluoro, nitro or methoxy radicals, or R 2  is a hydrogen atom; are obtained by reacting hydrocyanic acid with the corresponding azines (e.g.  wherein the azines are present in complex mixtures obtained by the oxidation of ammonia in the presence of ketones or aldehydes by means of oxidizing systems composed of nitriles and hydrogen peroxide or auto-oxidation products of secondary alcohols, after elimination or neutralization of excess ammonia.
Patent GB-1118103-A (GB)
Title: Improvements in bicycles
Inventor: UNCLES PHILIP BASIL
IPC: B62K3/10
Filed: 1966-05-25
Abstract: 1,118,103. Collapsible cycles MOULTON CONSULTANTS Ltd. 17 May, 1967 [25 May, 1966], No. 23398/66. Heading B7E. A front post 1 is provided with a rearwardly extending backbone 2 having integral hooks 3 engageable with a bottom bracket 7, the backbone comprising also members 4, 5, which member 4 may engage the seat tube 6 and be locked thereto by a nut which screws down on to a conical lug 10. Extra members 5a, 16 and 17 may be provided.
Patent GB-1495225-A (GB)
Title: Timepiece module
IPC: G04G99/00
Filed: 1976-06-07
Abstract: 1495225 Electronic timepieces JUNGHANS GmbH GEBR 7 June 1976 [24 April 1976] 23406/76 Heading G3T An electronic timepiece module comprising an oscillator 12, circuitry in integrated form, and a digital display 3 is housed in an elongate casing 1 with the display visible through a window 2 in a longitudinal side of the casing, and at least one contact 5 for connection to an exterior power source is exposed e.g. at one end of the casing. As shown the other supply connection is through the casing and a spring 11. The casing shape is thus not dictated by the power source and a number of ways of using the module are suggested, including attachment to an ornamental battery housing. The circuitry and the display, which may be of liquid crystal or l.e.d. type, are carried by respective boards 7, 8 which are inter-connected by attachment pins fixed to an intermediate plate 6.
Patent GB-295721-A (GB)
Title: Improvements in valves
IPC: F16K1/44
Filed: 1928-08-14
Abstract: 295,721. Akt.-Ges. Brown, Boveri, et Cie. Aug. 19, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Seats. - Doublebeat valve seating- cages are retained in tight sealing engagement with cylinder &c. casings, notwithstanding differential expansion under changes of temperature, by the provision of an annular elastic member d integral with the cage c or casing a, Fig. 5, or interposed therebetween, Fig. 7, and opening to the direction of flow so that its action is assisted by the steam pressure. The sealing surfaces may be cylindrical or conical.
Patent GB-295841-A (GB)
Title: Improvements in and relating to high tension and other dry batteries
IPC: H01M50/588
Filed: 1927-09-07
Abstract: 295,841. Marks, E. C. R., (Batterienund Elemente-Fabrik System Zeiler Akt.-Ges.). Sept. 7, 1927. No Patent granted (Sealing fee not paid). Cases; connections. -To avoid accidental short-circuiting of dry cells in a high tension or other battery each socket adapted to receive the usual plug connector is in two parts 13, 14 connected by an insulating ring 15. All the members 13, 14, 15 may be split as shown to give resilience. The sockets are embedded in sealing compound, not shown, in the usual way.
Patent GB-431976-A (GB)
Title: Manufacture of sulphurised dyestuffs
IPC: C09B49/12
Filed: 1934-08-15
Abstract: Hydrocarbons having at least three condensed rings, except anthracene, acenaphthene, and perylene or oxy derivatives of said hydrocarbons are sulphurized to give dyestuffs by means of sulphur or agents yielding sulphur.  In examples: (1) pyrene is heated with sulphur; the portion soluble in sodium sulphide dyes cotton brown tints while the insoluble dyestuff dyes vegetable fibres from a hydrosulphite vat a yellowish brown; the crude dyestuff may also be baked when violet brown to black shades may be obtained: (2) chrysene and fluoranthene are heated with sulphur and a little iodine: (3) oxyphenanthrene, made by fusing sulphonated phenanthrene with caustic alkali, is heated with a sodium polysulphide.  Examples are also given of dyeing goods with the sulphur dyestuffs produced.  The sulphurization of picene is mentioned.  The Specification as open to inspection under Sect. 91 comprises also the sulphurization of amino derivatives or salts of sulphoderivatives of the hydrocarbons containing at least three condensed rings, acetylamino pyrene being mentioned.  This subject-matter does not appear in the Specification as accepted.
Patent GB-447395-A (GB)
Title: Improvements in and relating to electric lamps
IPC: H05B41/22
Filed: 1934-08-15
Abstract: 447,395. Discharge lamps. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Aug. 15, 1934, No. 23554. Void [Abridged as open to inspection under Sect. 91 of the Acts, Feb. 18, 1935]. Drawings to Specification. [Class 39 (i)] The cathode drop of a lamp is lowered by producing positive ions by an independent means, which may be an auxiliary discharge at a higher voltage than the main discharge and maintained between a thermionic or other cathode and an auxiliary anode or either of the main electrodes. In a lamp having a sodium and neon or sodium and mercury filling, the colour of the light emitted may be modified by varying the strength of the auxiliary discharge current relatively to that of the main discharge. The auxiliary cathode may be a filament surrounding the main cathode, or a ring in front of it. Two such units may be used for fullwave alternating-current operation. The lamp may be filled with inert gas, carbon dioxide, nitrogen or titanium tetra-chloride, or mercury, sodium, thallium, or cadmium vapour, or mixtures thereof, for example neon at a pressure of from 0À1 mm. to 10 mms.
Patent GB-1209876-A (GB)
Title: Regenerative air preheaters with bypass-ducts
IPC: F28D19/04
Filed: 1969-05-08
Abstract: 1,209,876. Thermal regenerators. H. BRANDT and A. KRITZLER, [trading as APPARATEBAU ROTHEMUHLE, BRANDT & KRITZLER]. 8 May, 1969 [11 May, 1968], No. 23606/69. Heading F4K. In a stationary matrix, rotary duct-type thermal regenerator, the regenerator chamber 1 is supported in a square carrier frame 13 the corner spaces of which are utilized to support by-pass ducts 4, 11 for the heat exchanging fluids. As shown, heating gas flows in ducts 2, 3 and/or by-pass ducts 4, and air to be heated flows in ducts 5, 6, 8, 9, 10 and/or by-pass ducts 11. Each by-pass duct incorporates an expansion joint 14. Gas and air flow through the respective ducts is regulated by valve members 16-20.
Patent GB-187097-A (GB)
Title: Improvements in lubricating devices
IPC: F16N9/04
Filed: 1921-09-06
Abstract: 187,097. Oudebroekx, F. Sept. 6, 1921. Gravity-feed lubricators for connecting-rod ends &c. A body 1 with a shank 2 is screwed into an oil reservoir carried by the connecting-rod end. The shank has a central passage 3 into the upper part of which is screwed the shank 5 of a cap 6. The chamber 9 enclosed between the cap 6 and the body 1 communicates with the oil reservoir, by openings 8. By movement of the connecting- rod end oil is projected from the reservoir into the chamber 9 through the openings 8 and passes to the passage 3 through grooves 10 on the stem 5. Alternatively, the grooves 10 may extend only as far as radial passages 11 connecting with a central passage 12 in the stem 5.
Patent GB-1424144-A (GB)
Title: Reel-to-reel tape drive apparatus
IPC: G11B15/06
Filed: 1974-05-29
Abstract: 1424144 Feeding record tapes BURROUGHS CORP 29 May 1974 23732/74 Heading G5R In a reel-to-reel tape transport comprising drives for both reels, fast rewind on to the supply reel Rs is effected when a transport leader tape is detected at 12 and the tape wound on the take-up reel Rt is sensed to be of greater diameter than that on the supply reel Rs. As shown, the diameter of the tape on the take-up reel is measured by means of the current taken by the take-up motor Mt to maintain-the tape T at a predetermined tension with the supply motor Ms inactive.
Patent GB-1312606-A (GB)
Title: Methods of controlling the operation of electrolytic cells for the production of aluminium
IPC: C25C3/20
Filed: 1971-04-19
Abstract: 1312606 Producing aluminium by fusion electrolysis SWISS ALUMINIUM Ltd 19 April 1971 [17 Feb 1970] 23769/71 Heading C7B In the electrolytic production of Al from an alumina containing fluoride melt into which anodes fixed to a current-conducting beam dip, the interpolar distance is adjusted to equal a predetermined value by changing the height of the beam with the anodes fixed to it by a measured amount, measuring the resultant change in cell potential, and calculating the interpolar distance (d) before the beam movement from the values of the cell potential before the beam movement (U) and at infinitely small interpolar distance (Uo), the stroke of the beam (#d) and the corresponding change in potential (#U), from the equation d = (U-Uo). #d/#U, then the further movement of the beam necessary to attain the predetermined value, and making that further movement. Preferably the beam is first lowered by a definite  amount, then raised by a definite but higher amount, the potential being measured each time. The interpolar distance is adjusted to and maintained at a constant predetermined value, with alumina being added to the melt when the cell potential rises due to the anode effect.
Patent GB-377826-A (GB)
Title: Apparatus for the electro-osmotic purification of liquids, in particular of water, placed in a centre space separated by means of diaphragms from the electrodes
IPC: B01D61/42
Filed: 1931-08-24
Abstract: 377,826. Electrolytic purification of liquids. SIEMENS-ELEKTRO-OSMOSE GES., Siemensstadt, Berlin. Aug. 24, 1931, No. 23809. Convention date, Aug. 23, 1930. Addition to 339,673, [Class 41, Electrolysis]. [Class 41.] A number of 3-compartment cells for the purification of liquids are arranged so that each compartment is adjacent to the corresponding compartment of the next cell and communicates with it by apertures in the separating partition or by short pipes. In the apparatus shown in Fig. 6, the liquid to be purified, e.g. water, enters the centre compartment M\ flows successively through the compartments M<2>, M<3>, M<4>, and passes by a trough r<4> to the second series M<5> .. M<8> and finally leaves by an adjustable outlet l<1>. The electrode compartments A, K are flushed by percolation of liquid from the centre compartments through the diaphragms. The cathode flushing liquid overflows by slightly rising passages into a slot r<5> from which it passes by an outlet l<2> to a trough r<6>. The anode flushing liquid passes by horizontal passages to troughs r<7>, r<8> and thence by adjustable overflows l<3>, l<2> to the trough r<6>. Each set of diaphragms d is made in one piece, over which slotted partitions t are forced. The partitions are provided with communicating apertures alternately at the top and bottom. Alternatively the flushing liquid for the electrode spaces may be drawn from one or more of the centrespaces, e.g. the last but one. In a modification the liquid flows from each compartment of a set to the corresponding compartment of the adjacent set by a short pipe of adjustable height. In the form shown in Fig. 5, the outlet pipe l is mounted between plates m<1>, m<2> connected by a bolt n so as to be adjustable in a slot q in the wall o. The diaphragms may be of hard rubber or gurocel. They may be fixed in grooves in the cells by a cement of rubber latex with heavy spar, quartz or gurocel powder.
Patent GB-685663-A (GB)
Title: Improvements in or relating to insulating bushings
IPC: H01B17/26
Filed: 1950-09-28
Abstract: 685,663. Bushing insulators. GENERAL ELECTRIC CO., Ltd., and TAYLOR, S. Sept. 14, 1951 [Sept. 28, 1950], No. 23811/50. Class 36. [Also in Group XXXII] In an insulating bushing in which the insulating shell is held under compression by spring means which acts between the lead-in conductor and the shell, the spring means comprises a spring pack which is held under compression before assembly in the bushing so that it may be placed in its operative position without further compression, and then released to apply the necessary compression to the shell. The bushing may comprise two porcelain parts, a shield 2, Fig. 1 (not shown), within a tank, and a shed 4 outside the tank, the parts being held together around conductor 7 and its surrounding condenser bushing by spring pack 5. The bottom of conductor 7 is provided with a flange which bears against the bottom of the shield. The top of conductor 7 is surrounded by a metal casing 13. The spring pack 5 consists of two coaxial rings 18, 19, and a number of parallel rods 20, each carrying a compression spring 21 and secured to ring 18 which rests on the bottom of casing 13. The other end of each rod is threaded and passes through a hole in ring 19 so that the springs are held in compression between the rings by nuts 24. After positioning the spring pack a nut 16 is applied to the top of the conductor 7, over tab 2 of a flexible connection, until its rests on nut 25. Nuts 24 are then removed so that ring 19 abuts against nut 16, thus applying compression to the porcelain parts. The casing 13 is closed by a cover-plate 14 having a connecting 23 spigot.
Patent GB-443290-A (GB)
Title: Improvements in or relating to stiffening material adapted for use in the manufacture of boots and shoes and in or relating to the manufacture of such material
IPC: A43B23/08
Filed: 1934-08-18
Abstract: 443,290. Shoe stiffeners. BRITISH UNITED SHOE MACHINERY CO., Ltd., Belgrave Road, Leicester.-(Assignees of Cameron, E. H.; Arlington, New Jersey, U.S.A.) Aug. 18, 1934, No. 23838. Convention date, Aug. 19, 1933. Drawings to Specification. [Class 17 (ii)] [See also Group VIII] Stiffening-material for use in the manufacture of shoes comprises a fabric such as cotton cloth, flannel, paper or felt charged with a colloidal substance, e.g. cellulose derivatives, casein, albumin, gum or resin, part of which is in precipitated, readily soluble form and part is in a non-precipitated, more solvent-resistant form, the part in non-precipitated form being distributed throughout the part in precipitated form. A fabric impregnated with a precipitated colloidal substance such as that described in Specification 117,068, [Class 17 (ii)], is treated to dissolve the colloid without removal from the fabric by a solvent bath containing a solvent or non-solvent precipitation-restraining agent which is immiscible or but partially miscible with the precipitating liquid in which the fabric is subsequently immersed, so that precipitation of part of the colloid is prevented. When water is used as the precipitating agent, the solvent bath may comprise ethyl acetate alone, or ethyl alcohol or acetone or methyl ethyl ketone together with one or more of the following restraining agents, ethyl acetate, castor oil, butyl alcohol, toluol, naphtha, gasoline, butyl acetate, carbon tetrachloride. In use, blanks are cut from the product and are dipped in a solvent such as ethyl alcohol and diacetone alcohol. Specifications 301,428, [Class 96], and 443,106, are referred to.
Patent GB-387025-A (GB)
Title: Improvements in engine starting mechanism
IPC: F02N99/00
Filed: 1931-08-31
Abstract: 387,025. Turning-gear; flywheels. ECLIPSE AVIATION CORPORATION, 545, North Arlington Avenue, East Orange, New Jersey, U.S.A. Aug. 31, 1931, No. 24430. Convention date, Sept. 5, 1930. [Class 7 (v).] In an engine starter comprising an inertia member connected alternatively with a source of energy to be stored in the inertia member and with a member of the engine to be started, the inertia member has a variable moment of inertia in order to facilitate its being brought up to the desired speed of rotation. As shown in Figs. 1 and 2, the inertia member is a flywheel comprising four parallel and centrifugally actuated segments 12 which when at rest form a thick-walled cylinder of small diameter. Each segment is mounted on the centre of a resilient member 42, which is secured at its upper end to a sleeve 43 fixed on the flywheel shaft 38 and at its lower end to a sleeve 44 slidable on the shaft 38. As the flywheel gains speed, the segments move outwards to the position shown in broken lines, the sleeve 44 rising on the shaft 38. The flywheel is geared to the engine-engaging clutch member 13 by means of a pinion 37 on the shaft 38, compound gears 36, 34 and 33, 32, and planet wheels 26 rotatable on the end 21a of a driving barrel 21 and meshing with the gear 32 and a fixed internal gear 31 ; the barrel 21 is connected by a multiple-disc clutch 45 to a nut 47 engaging a screw-threaded shaft 51 on which the clutch member 13 is splined, a spring 55 being provided to hold the clutch member 13 in engagement with a nut 54 on the end of a rod 53, which is shouldered at 53a to engage the end of the shaft 51. The flywheel is set in rotation by means of a hand-driven shaft 15, connected by bevel gearing 18, 19 and a sleeve 20 to the barrel 21, and driving the flywheel through the planetary &c. gearing. The clutch member 13 is then moved into engagement with the engine member 14 by a hand lever connected to the rod 53. The friction clutch 45 slips in the event of backfire of the engine. In a modified construction of flywheel, Fig. 5, the segments 41 are mounted on resilient members 42 connected at one end to a sleeve 64, rotatable but not axially movable on the shaft 60 and at the other end to a threaded sleeve 61 engaging threads 62 on the shaft 60. While the flywheel is being set in rotation, the sleeve 61 bears against a shoulder 60a on the shaft. When the operator ceases to drive the flywheel, the sleeve 61 moves automatically upwards and the segments outwards under centrifugal action with corresponding reduction of the angular velocity, and the operator can then accelerate the flywheel to the desired speed. The flywheel may be driven electrically instead of by hand.