baber/WOPTO huggingface dataset:
Patent GB-1024850-A (GB)
Title: Improvements in hydraulic swash plate pumps or engines
IPC: F01B3/00
Filed: 1964-02-28
Abstract: 1,024,850. Reciprocating pumps. SOC. D'EXPLOITATION DES MATERIELS HISPANOSUIZA. Feb. 28, 1964 [March 12, 1963], No. 8418/64. Heading F1A. In a swash-plate pump or motor having a revolving cylinder block 6 coupled to a revolving swash plate 10, the thrust bearing 13 supporting swash plate 10 is relieved by pistons 24 in the swash plate which are subjected to hydraulic pressure and act against a fixed support 27. The pistons 24 are mounted in cylinders 25 connected to the pump cylinders 7 through passages 28 and interconnected by a passage 29 to provide a uniform balancing of the swash plate. Check valves 30 are provided in the inlets to cylinders 25 to prevent flow into the corresponding pump cylinders 7 when they register with the pump inlet port.
Patent GB-794387-A (GB)
Title: Extreme pressure grease composition
Filed: 1956-03-19
Abstract: A lubricating grease composition comprises a lubricating oil, an inorganic gelling agent and at least 2.5 per cent by weight, based on the whole composition, of an alkali metal hydrogen phosphate or an ammonium hydrogen phosphate.  The gelling agent may be a clay (particularly a montmorillonite such as hectorite) or an amorphous colloid (e.g. silica, magnesia, alumina, silica-lime or silica-magnesia in aerogel form).  The hydrogen phosphate may be sodium, potassium or ammonium mono- or di-hydrogen orthophosphate, sodium ammonium hydrogen orthophosphate, sodium hydrogen hypo- or pyro-phosphate or ammonium hypophosphate (NH4)2H2P2O6. The water-resistance of the grease may be improved by incorporating in the composition an anionic, cationic or non-ionic surface-active agent.  Suitable cationic surface-active agents are aliphatic amines containing at least one alkyl group with 10 or more carbon atoms, the corresponding ammonium salts (e.g. octadecyl ammonium acetate, dimethyl dioctyl ammonium acetate, dimethyl didodecyl ammonium acetate, dimethyl hexadecyl octadecyl ammonium acetate and the corresponding chlorides) and condensation products of halohydrins with ammonia or amines or the partial amides of such condensation products.  Reaction may take place between the clay and the amine salt to form an onium clay. The inclusion of a small amount of a strong acid (e.g. hydrochloric, sulphuric or phosphoric acid) in a clay-organic base combination improves the hydrophobic characteristics of the grease.  Another method of improving the water-resistance of the grease is to react the gelling agent (especially silica) superficially with an aliphatic or cyclic alcohol.  The grease composition may also contain antioxidants (e.g. arylamines such as phenyl alpha-or beta-naphthylamine) and extreme pressure agents.  In examples, lubricating grease compositions are described consisting of mineral lubricating oil and (a) hectorite, partial tall oil acid amide of an epichlorohydrin-ammonia condensation product, phosphoric acid and sodium dihydrogen phosphate monohydrate, (b) onium clay (prepared by the reaction of dimethyl dicetyl ammonium chloride with bentonite) and NH4H2PO4; and (c) bentonite, partial oleic acid amide of an epichlorohydrin-ammonia condensation product and sodium dibasic pyrophosphate.  In a further example, a lubricating grease composition is described consisting of bis (2-ethylhexyl) sebacate, silica aerogel and K2HPO4. For comparison purposes, grease compositions are described in which the sodium dihydrogen phosphate of composition (a) is omitted or replaced by trisodium phosphate, sodium metasilicate, boric acid, chlorinated naphthalene or a mixture of lard oil and lead naphthenate.
Patent GB-183187-A (GB)
Title: Improvements in and relating to pneumatic tools
IPC: B23B45/04
Filed: 1921-03-18
Abstract: 183,187. White, A. E., (Cleveland Pneumatic Tool Co.). March 18, 1921. Crank shafts.-An eccentric crank pin 46 on short cranks 47 is balanced by a weight 48. A part 50 of the shaft is made straight to facilitate adjusting the big end of a one piece connecting- rod on to the pin.
Patent GB-245976-A (GB)
Title: Improvements in and relating to arrangements for draining or drying damp walls
IPC: E04B1/70
Filed: 1925-03-31
Abstract: 245,976. Motzko, L. March 31, 1925. Drying buildings.-A wall is made self-drying below ground level by means of a face channel 1 which communicates with the outer air by vertical passages 4, the inner ends 6a, 6<b> of which are at high and low levels alternately; other passages 7 extend higher up the wall or to the roof, and occur at wider intervals. For an existing wall, an auxiliary wall 2 is built against the soil; for new walls, the channel 1 is formed in the wall thickness. Porous blocks 9 bridge the channel 1 and may be more closely arranged near the base; they absorb the moisture and deliver it to the moving air. Adjustable slides may be fitted to the openings 5a, 5b. Channels may be similarly formed in internal walls and may communicate by pipes with the outer channels.
Patent GB-678817-A (GB)
Title: Improvements in or relating to metal working machines
IPC: B24B3/02
Filed: 1950-04-05
Abstract: 678,817. Backing-off lathes; milling. WILSON, H. D., and COVENTRY GAUGE & TOOL CO., Ltd. April 5, 1951 [April 5, 1950], No. 8621/50. Class 83 (iii). [Also in Group XXIII] A machine or attachment for form-relieving hobs or other rotatable tools comprises a slide 17, Fig. 1, which may carry either the tool or the work, a member 21, Fig. 2, operatively connected to the slide, a cam 24 to engage the member to feed the slide and a cam 32 intermittently brought into operative position with respect to the member 21 to withdraw the slide. In the preferred embodiment, a rotary tool 15 is mounted on the slide and the work 10 is slowly rotated on a fixed axis. The member 21 is fulcrummed at 22, with a toothed sector at one end to mesh with a rack on the slide. The lower end of the lever 21 is engaged by a rise 26 on the cam 24 once during each revolution of the latter which is driven in timed relation with the work 10 and connected by step-up gearing 28, 29 with a sleeve 30, Fig. 3, to which the cam 32 is rigidly connected. A cam 38 fast with the shaft carrying the cam 24 is connected with this sleeve through a lever 35 and holds the cam 32 in an inoperative position 32a until the feed movement of the slide is completed when the cam 32 is advanced to its operative position and a rise 39 on the cam causes a rapid withdrawal of the slide.
Patent GB-1017964-A (GB)
Title: Improvements in or relating to methods of increasing the capacity of a ship or like vessel by converting the same to a vessel of larger size or displacement
IPC: B63B9/04
Filed: 1963-03-05
Abstract: 1,017,964. Enlarging ships' hulls. ISHIKAWAJIMA-HARIMA JUKOGYO KABUSHIKI KAISHA. March 5, 1963 [April 2, 1962], No. 8683/63. Heading B7S. A method of enlarging a ship to increase its depth, or depth and width includes the steps of placing floats 3 on either side of ship's hull 2, ballasting the floats and/or hull to bring the upper ends of the floats level with the upper deck 5 and fixing them to the hull at 9, cutting the hull between the upper deck and the water level to form two parts which provide an upper hull part and a lower hull part, discharging ballast from the floats to raise them and the attached upper hull, and finally attaching the lower hull part to the floats at 11. An alternative method, comprises placing the floats on either side of the hull as before only with the ship in a dock, supporting the floats on blocks on the dock floor while fixing the upper ends of the floats to the hull adjacent the upper deck as before, cutting the hull between the upper deck and the water level and allowing the lower hull to sink by pumping water out of the dock, and finally securing the lower hull to the floats as before.
Patent GB-837904-A (GB)
Title: Improvements in cold-cathode trigger-tubes
Inventor: CROWTHER GERALD OFFLEY
IPC: H01J17/46
Filed: 1957-03-18
Abstract: 837,904. Cold-cathode tubes. MULLARD Ltd. March 18, 1957. No. 8813/57. Class 39(1). A cold-cathode trigger-tube is provided with a cathode, a trigger electrode and a plurality of main anodes so disposed that when the tube is in the quiescent condition and when a discharge current not greater than a defined maximum is flowing between the cathode and the trigger electrode the breakdown voltage between the cathode and any one of the anodes is different from the breakdown voltage between the cathode and any other anode, and wherein the breakdown voltage in the absence of a discharge current flow between the cathode and the trigger electrode, between the cathode and any selected anode is greater than the breakdown voltage, in the presence of a defined minimum discharge current flow between the cathode and the trigger electrode, between the cathode and at least one other anode, said other anode having a higher breakdown voltage than the selected anode under the same trigger-cathode discharge current condition. The circuit preferably includes a device for disconnecting from the remainder of the circuit those anodes which have a breakdown voltage relative to the cathode which is less than the required breakdown voltage so that the tube functions correctly over a wide supply-voltage range. The main anodes may comprise small plates 10, 20, Fig. 1, supported on rods 11, 21 of unequal length which are surrounded by ceramic tubes 12, 22; or a rod anode may be surrounded by a cylindrical anode extending beyond the rod. Alternatively three main anodes 16, 26, 30, Fig. 5, may be arranged one behind the other. In addition to the trigger electrode T, an auxiliary cathode X may be provided and if required an auxiliary anode, or alternatively radio-active priming means may be provided. Specification 817,557 is referred to.
Patent GB-819125-A (GB)
Title: A process for the purification of anthracene
IPC: C07C7/00
Filed: 1958-03-19
Abstract: Anthracene is purified by selectively dissolving impurities such as carbazole and phenanthrene in a dialkyl sulphoxide or a dialkyl formamide; the carbazole and phenanthrene may be recovered from the mother liquors.  The crude anthracene may be heated with the solvent at 80-120 DEG  C., cooled and filtered at 20-80 DEG  C.; several steps may be used, if desired the solvent and anthracene proceeding in countercurrent directions so that at each stage anthracene is treated with filtrate from the succeeding stage, using pure solvent in the final stage.  In the final stage the filtration may be carried out at a higher temperature and the dissolved anthracene crystallized from the filtrate and supplied to an earlier stage.  At any stage the anthracene may be washed with pure solvent or another solvent.  Tarry impurities may be removed beforehand by treatment with benzene or toluene.  The anthracene may be recrystallized from the sulphoxide or formamide, bleaching earth or active carbon being added to the solution.  The anthracene may be finally purified by sublimation. Carbazole and phenanthrene may be recovered from the mother liquors by distilling off the solvent or by precipitation by adding a liquid in which they are insoluble, e.g. water, preferably after concentration of the mother liquors.
Patent GB-685818-A (GB)
Title: Spirally wound variable inductance devices
IPC: H01F21/00
Filed: 1951-04-17
Abstract: 685,818. Inductances. MALLORY & CO., Inc., P. R. April 17, 1951 [April 18, 1950], No. 8925/51. Class 38 (ii). A variable inductance comprises a rectangular sectioned conductor 60 which is wound in a spiral manner on the face of an insulating member 27 so that the edge 64 is fixedly embedded in the member. A moving contact member comprising two relatively movable parts 113, 114 is adapted to be rotated by means of a shaft member 82 so that as the contact member is rotated the brush 116 travels over the spiral so as to alter the effective length of the conductor thereby to vary the inductance of the device. The member 113 is in contact during rotation with a terminal 38 by means of a brush 118, the other terminal 37 being fixedly connected to the end 61 of the spirally wound coil. Stop mechanism is provided to give end limits to the travel of the moving contact and also to give intermediate positions. A number of such inductance units may be mounted one behind the other and the contact members driven from a common shaft, the whole assembly being enclosed in a dust-proof container.
Patent GB-1000868-A (GB)
Title: Atmospheric corrosion resistant, notch ductile, high tensile strength steel
IPC: C22C38/12
Filed: 1962-03-09
Abstract: A corrosion resistant, notch ductile, high tensile strength steel contains: .C.0-0.2% .Si.0.01-1.0% .Mn.0.2-2.0% .P.0-0.1% .Cu.0.2-0.6% .Cr.0-1.0% .Ti.0.027-less than 0.4% .Nb.0.05-0.5% the balance, apart from impurities, being iron
Patent GB-127121-A (GB)
Title: Improvements in and relating to Ignition Systems for Internal Combustion Engines.
IPC: F02N99/00
Filed: 1918-06-05
Abstract: 127,121. Midgley, A. H.. and Vandervell & Co., C. A. June 5, 1918. Systems, electric; timing. - To prevent backfiring at starting, particularly on aircraft engines, the firing is retarded to such a degree that ignition takes place in a cylinder which is on its working or expansion stroke. Either the cam or the make-and-break device of the circuit-breaker together with the distributor arm may be adjusted for this purpose, as for example by worm and wheel gearing described in Specification 126,583. the possible adjustment extending to 140 degrees for a six-cylinder engine.
Patent GB-558272-A (GB)
Title: Improvements in or relating to controls for mechanically propelled vehicles
Filed: 1942-07-06
Abstract: 558,272. Controlling motor vehicles. FLIND, H. C. July 6, 1942, No. 9364. [Class 79 (v)] A main brake or other pedal lever 10, 11 carries an auxiliary throttle or other control lever 18 which is pivoted at 17 to an intermediate member 15 itself pivoted to the main foot plate 10 about an axis 16 parallel with the foot plate 10 and substantially perpendicular to the pivot 17. In the construction shown the lever 18 is provided with a roller 19 and an arm 20 both normally projecting above the foot plate 10 and is connected to the throttle by a Bowden wire 22, the casing 23 of which is secured to the member 15. Normally the member 15 and lever 18 are held in the position shown by means of a spring 30 which acts on the member 15 and therefore also on the pedal 10 through .toggle links 33, 34 and may be additional to or a substitute for the usual return spring of the pedal 10. When the driver wishes to control the throttle he rests his foot on the plate 10 and arm 20 thereby depressing the lever 18 and the member 15 about the pivot 16 and separating a rack sector 26 on the lever 18 from a holding rack 27 carried by a spring plate 28 fixed to the plate 10. By moving his foot sidewise against the roller 19 the driver rocks the lever 18 about its pivot 17 and opens the throttle to the desired extent. If he raises his foot clear of the arm 20 the racks 26 and 27 engage and the throttle is retained in the desired open position. To apply the brake the pedal 10, 11 is depressed and the first action is to allow the member 15 to rock until a rubber roller 46 thereon engages the plate 10; this separates the rack members 26, 27 and allows the throttle to close under the action of the usual closing spring, further depression of the pedal applying the brake. The spring 30 and toggles 33, 34 act in conjunction with a tension rod 39 pivoted at 40 to the member 15 and sliding through a pivoted socket 41, a compression spring 43 being provided between a buffer 45 and an adjustable collar 42 on the rod. The spring 30 may be dispensed with, independent springs being provided for the brake lever 11 and the member 15. A buffer 47 on the pedal plate 10 si adapted to bear on the foot-board 12 when the pedal is fully depressed, and carries a lug 49 limiting movement of the roller 46. Specification 471,132 is referred to.
Patent GB-375421-A (GB)
Title: Improvements in or relating to cases or holders for sticks of shaving soap and the like
IPC: A45D40/02
Filed: 1931-03-27
Abstract: 375,421. Cases for sticks of shaving soap &c. MARR, P. G., Rydens End, Walton-on-Thames. March 27, 1931, No. 9419. [Class 18.] A " holder-top case for a stick of shaving soap &c. comprises an imperforate tubular holder portion 21 having at each end an opening of a diameter at least equal to the diameter of the bore of the holder portion, a support 25 for the stick &c. having means for retaining it adjustably in the holder portion and a cover 22 which extends over one end thereof and is detachably connected thereto at or near the other end 23. As shown, the support 25 is of the non-return type with a flexible skirt 27 extending from a front transverse end wall 26 and terminating in a number of lugs 28 which engage the interior surface of the holder portion 21 and prevent downward movement of the support therein ; a groove or channel 29 may be provided in the skirt adjacent the lugs and the soap stick 24 may be carried in a split socket 30 detachably fixed to the wall 26 of the support. The cover 22 is spaced from the holder 21 except where it screws on to the end 23 and the bore of the holder may be roughened, pitted, or grooved. Other forms of non-return supports are described and Specification 370,954 is referred to.
Patent GB-1492311-A (GB)
Title: Electric arc-welding processes and apparatus therefor
IPC: B23K9/073
Filed: 1975-03-06
Abstract: 1492311 Welding by fusion UNITED KING- DOM ATOMIC ENERGY AUTHORITY 25 Feb 1976 [6 March 1975] 9473/75 Heading B3R [Also in Division G3] In an electric arc welding process, alternating positive and negative current pulses are supplied to an arc, and the width of the positive and/or negative pulses is controlled in dependence upon a sensed parameter associated with the arc. As shown in Fig. 1, a floating D.C. source 1 is connected to a solid-state reversing switch 2 which supplies a square waveform of alternating polarity through a surge choke 4 and spark starter circuit 5 to an arc formed between a workpiece 7 in a manipulator 84 and an electrode 6 in a holder 12. In operation, the value of a parameter associated with the arc is amplified 91, filtered 92, and compared 93 with a reference value. The resulting output from comparator 93 adjusts the settings of timing devices in a circuit 9 which provides inputs to a unit 3 controlling the periods for which the switching circuit 2 remains in each polarity state. The circuit 9 may also operate to vary the amplitude of the pulses supplied to the arc by means of a thyristor arrangement in the source 1 controlled by a device 11. The arc characteristic sensed and used for control purposes may be the audio-frequency of the arc sensed by a piezoelectric detector 90, the welding current monitored by a sensor 96, the presence of out-ofphase pulses detected by a device 97, or thermal emission at the back of the weld sensed by an infra-red detector. The arrangement may be incorporated in a computer controlled system for TIG welding with a non-consumable electrode or MIG welding with a consumable electrode. The ratio of positive to negative pulse lengths can be set at a desired value for optimum welding action, e.g. with an aluminium workpiece. Further details of the control circuitry are described with reference to Fig. 4 (not shown). In particular, the switching circuit 2 may comprise a thyristor bridge arrangement, and the pulse timer circuits may include a pulse generator and monostable arrangement. An initial pulse selector 10 includes a variable delay and switch so that the polarity and duration of the first arc pulse can be selected independently of subsequent control. A surge injector unit 8 including a transistor switch delivers current pulses synchronized with the operation of the reversing switch 2. Pulses of sawtooth waveform may be supplied instead of a square wave. He and A are referred to as shielding gases.
Patent GB-1426317-A (GB)
Title: Injection moulding composition
IPC: C04B35/634
Filed: 1974-03-04
Abstract: 1426317 Ceramics TOKYO SHIBAURA ELECTRIC CO Ltd K SAITO T TANAKA and T HIBINO 4 March 1974 [5 March 1973] 9543/74 Heading C1J An injection moulding composition comprises raw ceramic material and 8-30% of atactic polypropylene, 3-15% of other thermoplastics, e.g. polyolefines, polystyrene, polymethacrylate and ethylene vinyl acetate copolymer can be included. Plasticizers (e.g. phthalates) and lubricants (e.g. HSt, paraffin wax, ester wax) can also be present. Ceramics specified are Al 2 O 3 , talc, clay, Cr 2 O 3 , pottery stone, felspar, TiO 2 , ZrO 2  and PbO in various combinations.
Patent GB-138768-A (GB)
Title: An improved bedstead fastener
IPC: F16B12/60
Filed: 1919-04-15
Abstract: 138,768. Beadle, W. H. April 15, 1919. Joints and connexions.-In a bedstead joint of the type comprising a socket 2 projecting from a plate 1 secured to a pillar and a tongue 9 projecting from a plate 8 secured to a side rail, the socket 2 is made of U-section with a flat face adjacent to the plate 1 and inwardly inclined face 2 opposite to the plate. The tongue 9 has a recess 14 on the side which engages the plate 1. The fittings may be of cast or stamped metal.
Patent GB-127562-A (GB)
Title: Improvements in Stylographic Fountain Pens.
Inventor: ANDERSEN JOERGEN THORVALD
IPC: B43K8/02
Filed: 1919-04-15
Abstract: 127,562. Andersen, J. T. May 28, 1918, [Convention date]. Reservoir pens.-The ink in the reservoir of a stylographic pen is absorbed in a filling of porous or capillary material, such as cotton-wool, wadding, or asbestos, which extends to the end of a tubular writing-point integral with, or attached to, the reservoir. In the construction shown, the filling 3 is contained in a tube 4 of metal, glass, china, ebonite, &c. fitting into a holder 7. The tube 4 is open at the upper end, and is shaped at the lower end 5 to form a curved tubular writing-point. The upper end of the holder 7 is provided with an air passage 9 to maintain atmospheric pressure inside the reservoir. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a cap provided with an air passage and with a wiping-devioe of absorbent fabric &c. This subject-matter does not appear in the Specification as accepted.
Patent GB-375849-A (GB)
Title: Improvements in and relating to photographic sensitising solutions
IPC: G03C1/64
Filed: 1931-03-30
Abstract: 375,849. Photographic printing. MATE, W., 86, Eltham Road, Lee, and CANNELL, J., 34, Drysdale Avenue, Ching- ford, both in London. March 30, 1931, No. 9628. [Class 98 (ii).] A sensitizing composition specially applicable for fabrics, wood surfaces, tiles and the like comprises, substantially in the following proportions, silver nitrate (300 grs.) ferric ammonium citrate (green scales) (375 grms.), citric acid (300 grs.) and water (1 pint). The solution is applied in drops and the surface dried. The printed image is washed and fixed in hypo, various tones being possible by this treatment and in the case of fabrics by ironing. Faint images can be developed up by steam, the tone depending on the character of the negative and on the exposure. Images on fabrics (e.g. handkerchiefs) can be washed and ironed.