baber/WOPTO huggingface dataset:
Patent GB-1462276-A (GB)
Title: Clutch-motor assembly
IPC: F16D67/06
Filed: 1974-04-23
Abstract: 1462276 Clutch-brake combinations; disc brakes; electromagnetic brakes; cooling QUICK-ROTAN BECKER & NOTZ KG 23 April 1974 [30 April 1973] 17783/74 Headings F2C F2E and F2L In a combined electric motor and clutchbrake unit wherein clutch and brake discs 26, 38 are carried by hubs 23, 34 secured to an output shaft 18 and carry friction facings 29, 32, 39 engageable with a driving flywheel 12 and a fixed disc 52 by selective energization of stationary electromagnets 62, 61 located between the clutch and brake discs, a cooling air flow 15 is drawn past the fixed brake disc 52, between the electromagnets 61, 62, around the clutch plate 26 and through the flywheel 12 by fins 16 on the latter. An additional cooling flow of air 41 is drawn past the brake disc 38 by fins 40. The clutch and brake hubs 23, 34 are connected by annular springs 27, 36 to magnetically conducting rings 26, 37 carrying aluminium support rings 30, 38 for friction linings 32, 39. The clutch support ring 30 is surrounded by a magnetically conducting pole ring 31. The clutch and brake air gaps may be adjusted together to take up wear by screwing a bush 46 into a sleeve 45 of a fixed housing 42 and thus adjusting the axial position of the output shaft 18. The clutch air gap may be adjusted alone by moving the motor shaft (3) and flywheel 11 axially. In Fig. 5 (not shown) axial passages (78) are provided radially inwardly of the electromagnet (61) to provide an additional cooling air path (82). Plugs (84, 85) or PTFE project from the flywheel and fixed brake plate and are worn down by engagement with the clutch and brake discs to provide a thin film of PTFE on the clutch and brake surfaces to reduce wear.
Patent GB-863929-A (GB)
Title: Composite decorative article
IPC: F21V35/00
Filed: 1959-05-25
Abstract: 863,929. Stands; furniture joints. JOSEPHSON, G. May 25, 1959, No. 17806/59. Classes 52(2) and 52(3). A table centrepiece comprises two flat members 1, 5 which are crossed and detachably connected by being half-cut at 2, 6 respectively, the members being held in the correct angular relationship by the edges of the slot in each member engaging ribs 3, 8 formed on the other member. The ends of one or each member may carry a candleholder 11, ash-tray or dish. A socket 13 has slots 15 so that it can be mounted on the members 1, 5 where they intersect and also has a candle-holder 22 &c.
Patent GB-571181-A (GB)
Title: Improvements in or relating to testing equipment of the kind comprising thin sheet material containing an indicator
IPC: G01N31/22
Filed: 1943-10-29
Abstract: Azo dyes which may be used for colorimetric testing (see Group III) are obtained by diazotisation and coupling respectively from 2 mols. 6-nitro-2-amino-phenol-4-sulphonic acid, from 2 mols. ortho-aminophenol-4-sulphonic acid, or from 1 mol. ortho-amino-4-phenol-sulphonic acid and 1 mol. ortho-amino-4-phenol-sulphonamide, each with 1 mol. 5 : 51-dihydroxy-7 : 71-disulpho-2 : 21-fumaric dinaphthylamide.
Patent GB-1512003-A (GB)
Title: Brake indicating device
IPC: F16D66/02
Filed: 1975-04-30
Abstract: 1512003 Indicators for brakes HOPE TECHNICAL DEVELOPMENTS Ltd 30 April 1975 [24 April 1974] 17904/74 Addition to 1387808 Heading F2E The need for brake adjustment is indicated when a magnetic shield interrupts the field to change the state of an electric switch in response to excess movement of part of the brake actuating mechanism. As shown the switch 31 and the magnet 28 are located in bores in a sleeve 21 mounted in an actuator housing and a shield 24 (Fig. 2) mounted on an actuator rod 16 can move into a slot extending between the magnet and switch when the travel of the rod exceeds a predetermined amount. The rod is moved by diaphragm 11. It is stated that the shield may be fixed and the switch and magnet movable. (For Figures see next column.)
Patent GB-562561-A (GB)
Title: Improvements in the manufacture of plaster of paris
IPC: C04B11/024
Filed: 1942-12-17
Abstract: 562,561. Plaster of Paris. HADDON, C. L., CAFFERATA, B. J., and BRITISH PLASTER BOARD, Ltd. Dec. 17, 1942, Nos. 17942/42 and 19568/43. [Class 1 (iii)] Plaster of Paris of crystal form imparting improved setting properties is made by autoclaving gypsum in the presence of a soluble protein or a product of the partial hydrolysis of a protein : in particular, keratin dissolved in alkali, or peptone. Example : 4 kgm. of - 80 mesh gypsum, 4 litres of water, and 8 gm. of commercial peptone were autoclaved at 130- 140‹ C. for 1¢ hours with stirring. Specifications 3225/03, 26007/03 and 5853/04, [all in Class 1], are referred to.
Patent GB-589868-A (GB)
Title: Improvements in or relating to gelatinous hydrocarbon conversion catalysts and corresponding processes
IPC: B01J21/12
Filed: 1944-09-20
Abstract: A catalyst for the conversion of hydrocarbons is prepared by soaking purified silica hydrogel in an aluminium salt solution, draining it, treating with ammonia or other volatile nitrogen base to precipitate all the aluminium salt, washing, drying, and heating to 800 DEG C. The salt may be aluminium sulphate in solution of 16-33 per cent. strength.
Patent GB-752714-A (GB)
Title: Apparatus for the electrical testing of dental pulp vitality
IPC: A61C19/04
Filed: 1954-06-18
Abstract: A dental pulp vitality tester has a current limiting resistance in the probe circuit.  The value is so chosen that when the comparatively high resistance of a tooth is in the circuit the current cannot exceed the maximum necessary, for the desired test, viz. 50 microamperes while, when the probe is in contact with the patient's gum, thereby being effectively short-circuited, the limiting resistance keeps the current below that needed for sensation, this being approximately 200 microamperes.  By this means it is impossible to obtain false indications when the probe is accidentally in contact with or is closely adjacent to the gum. The appropriate formula for deducing suitable values is given. U.S.A. Specification 2,603,753 is referred to.
Patent GB-1464644-A (GB)
Title: Soil cultivating assemblies
IPC: A01B49/02
Filed: 1974-04-24
Abstract: 1464644 Combinations of soil cultivating implements C VAN DER LELY NV 24 April 1974 [1 May 1973] 18025/74 Heading A1B A soil cultivating assembly which includes a cultivator 1 having tines 5 fixedly mounted to its frame for tearing up large lumps of soil and triangularly-shaped (not shown) coupling member or trestle 6 for connection to a threepoint linkage of a tractor, and a rotary harrow 8 having vertically rotatable tined soil working members 11 mounted to its frame for crumbling the broken lumps of soil and triangularly shaped (not shown) trestle 19 and driving shafts 30, 29, gearbox 27, change-speed gear 28 and pinions 12 for driving the members 11 wherein the cultivator 1 is connected to the harrow 8 by arms 22 and adjustable arms 24 both of which are pivotally connected to the trestles 6 and 19 respectively and wherein a hook-shaped stop means 31 is mounted on the frame of the cultivator 1 for limiting the downward movement of the arms 22, 24 when the implements 1, 8 are in their inoperative transport position. The assembly further comprises a ground engaging roller 18 for compressing worked soil and breaking lumps of soil. The roller 18 is mounted on arms 16 which are pivotable about a horizontal axis and include holes whereby pins 19A can be inserted through the holes to be connected to a selected one of an arcuate row of apertures 20 provided on plates 14 of the frame 9 to adjust the level of the roller 18.
Patent GB-238203-A (GB)
Title: Improvements in warp shedding mechanism for looms
IPC: D03C3/20
Filed: 1925-07-15
Abstract: 238,203. Butin, E. A., and Girard, L. Aug. 7, 1924, [Convention date]. Jacquards.-The engagement of the hooks h with the griffe is controlled by electromagnets f, which can be energized by means of feelers i contacting with a pattern on a cylinder g or band comprising conducting portions and also insulating portions. When an electromagnet is energized, a corresponding lever e is held in the position shown in Fig. 1 and a member a operating on a corresponding rod b compresses a spring d when it moves to the left, the rod b being blocked by the lever e. When the electromagnet is not energized, the lever e is freed, the rod b is moved to the left and the corresponding hook e is operated as shown in Fig. 5. The manner in which the apparatus is used for weaving a patterned velveteen requiring six picks is described. The feelers each comprise a long needle i' and a short needle i<2> and the cylinder is moved into three positions in which it contacts respectively (1) for two picks with both feelers, (2) for four picks with the longer feeler only, and (3) with neither feeler, the cylinder being then rotated. The double feeler is necessary to ensure that parts at the end of a patern are not missed, two additional picks being inserted after the feeler i<1> has left the pattern porion of the cylinder, the feeler i<2> remaining in contact therewith. A single feeler may be used occupying two positions only. According to the Specification as open to inspection under Sect. 91 (3) (a), an endless band may be used and the conducting portions may comprise metallic varnish, metallic coil &c. The pattern may be formed by the conducting portions and the groundwork by the non-conducting portions or vice versa. The arrangement may be disposed vertically and the jacquard needles be replaced by hooks and eyes. This subjectmatter does not appear in the Specification as accepted.
Patent GB-353998-A (GB)
Title: Improvements relating to the operation of carbonising chambers
IPC: C10J3/00
Filed: 1930-06-12
Abstract: 353,998. Steaming coke ovens. NAAMLOOZE VENNOOTSCHAP SILICA EN OVENBOUW MIJ, 17, Raamweg, and HIBY, W., 3, Tapijtweg, both in The Hague. June 12, 1930, No. 18076. [Class 55 (i).] In the production of water gas in intermittently operated coke ovens, towards the end of the coking period, steam or water is led into the cleavage in the middle of the mass of coke through tubes having downwardly directed outlet openings. These tubes are introduced from one or both of the narrow sides of the oven. The water may be mixed with tar or oil, or the steam with tar or oil vapours or the water may be replaced by the liquor condensed from the gas.
Patent GB-911467-A (GB)
Title: A jet propulsion power plant with supplementary combustion
IPC: B64C29/00
Filed: 1960-05-23
Abstract: 911,467. Gas-turbine jet-propulsion engines. BMW TRIEBWERKBAU G.m.b.H. May 23, 1960 [June 4, 1959], No. 18098/60. Class 110 (3). [Also in Group XXXIII] A jet-propulsion power plant for aircraft with a reheat combustion chamber and jetdeflecting means comprising a lift-generating nozzle 5 for vertical take-off and landing is characterized in that the reheat combustion chamber 3 is preceded in the direction of flow by an auxiliary combustion chamber 4 located directly aft of a gas-turbine engine 2 and in front of lift-generating nozzle 5, the reheat chamber 3 being separated from nozzle 5 by an aerodynamic throttle 6, the whole power plant being mounted in a nacelle 1. The aerodynamic throttle 6 comprises a constriction of such a size that, when combustion chamber 4 is not in operation, all the generated gas may pass through it, but that, when the gases from engine 2 are heated in combustion chamber 4, only part can flow through constriction 6 and the remainder is emitted downwardly through nozzle 5 to generate lift. In a second embodiment, the gas-turbine engine is of the by-pass type, and in this case, either the turbine exhaust gases together with the by-pass air, or the by-pass air alone, may enter the auxiliary combustion chamber. In the latter case, the turbine exhaust gases are discharged through separate propulsion nozzles.
Patent GB-121192-A (GB)
Title: Improvements in Adjustable Spanners or Wrenches.
Inventor: ANDREWS CHARLES
IPC: B25B13/56
Filed: 1917-12-07
Abstract: 121,192. Andrews, C. Dec. 7, 1917. Wrenches.-Relates to wrenches of the type in which a disk having a series of openings or notches to fit different-sized nuts is pivoted to a handle to which it is locked in various positions by a spring-pressed key. In one form, Figs. 1 and 3, the disk b, pivoted to the handle a, is provided with a series of notches b' and a series of holes b<7> any two adjacent ones of which may be engaged by a pair of conical locking-keys d<2> which are rigid with a spring-pressed lever d pivoted to the handle a. In another form, Figs. 6 and 7, a triangular locking-key b<10> is rigid with the handle a and is adapted to engage the notches b', the handle being slidable axially on the pivot c of the disk b against the action of a spring f.
Patent GB-687826-A (GB)
Title: Cartridge chamber seals for automatic firearms
IPC: F41A3/76
Filed: 1951-07-31
Abstract: 687,826. Automatic firearms. VERWALTUNGSGES DER WERKZEUGMASCHINENFABRIK OERLIKON. July 31, 1951 [Aug. 23, 1950], No. 18136/51. Class 92(ii) Relates to automatic firearms of the kind in which cartridge chambers 12 on a revolving drum 3 are brought successively into line with the barrel 1. According to the invention seating of each cartridge chamber is effected by a bushing 14 the rear part of which is thinner than the front, whereby the rear part is tightly pressed against the wall of the chamber by the action of the gas pressure. The chamber shown is cylindrical; in a modification the chamber is conical.
Patent GB-1069403-A (GB)
Title: Electrode for electrolytic processes
IPC: C25B11/10
Filed: 1964-05-01
Abstract: An electrolysis electrode, e.g. for Cl2 producing cells, has a main conducting portion comprising graphite and an electrochemically effective surface comprising Ti which may be activated by Pt and/or Ir.  The Ti may be welded, cemented, screwed, bolted, clamped or glued to the graphite.  The Ti may be in the form of a hollow body surrounding the graphite or may be in the form of foil glued to a graphite plate using a synthetic vulcanised rubber or epoxy resin adhesive.  The surface of the Ti adjacent the graphite may be coated with Ag or Cu.  The part of the graphite not covered by Ti may be coated with hard rubber or plastic such as polymerized chloro fluoro hydrocarbons.
Patent GB-444283-A (GB)
Title: Improvements in and relating to automatic lathes
IPC: B23Q5/14
Filed: 1935-06-25
Abstract: 444,283. Turning. PITTLER WERKZEUGMASCHINEN-FABRIK AKT. - GES., Wahren, Leipsic, Germany. June 25, 1935, No. 18219. Convention date, Oct. 24, 1934. [Class 83 (iii)] [See also Group XXIV] An automatic lathe has control drums 28, 28a, for determining the direction of rotation and the speed of the spindle respectively, each drum being driven by a separate gear train including rocking key clutches which are independently operated from a common control shaft 13. The drums are driven from a shaft 1 through gears 3, shaft 4, wormgearing 6 and shaft 7. The latter carries at each end a sleeve 8, 8a, keyed to a continuously driven clutch sleeve 9 engageable with the hub of a gear 12, 12a driving the respective control drum. Dogs 15 on the control shaft 13 actuate a lever 16 to withdraw a lever 19 from a lever 21 coupled with the rocking key 24, 25. A spring 22 then rotates the key so that a corner b, Fig. 4, of the part 25 engages in one of the teeth in the interior of sleeve 9 and couples the sleeve to the gear 12 to drive the corresponding drum which continues to rotate until after one revolution of the wheel 12, corresponding to half a revolution of the drum 28 or 28a the levers 19, 21, coact to break the coupling. The rocking keys are made in two parts 24, 25 the ends of the parts being semi-cylindrical so that they interfit as shown in Fig. 3. The part 25 only of the key is hardened and is readily replaceable if breakage occurs.
Patent GB-107340-A (GB)
Title: Improvements in and relating to Electric Switches more particularly for use in connection with Switchboards.
IPC: H01H25/06
Filed: 1916-12-20
Abstract: 107,340. Midgley, A. H., and Vandervell & Co., C. A. Dec 20, 1916. Cases, covers, and lids; contacts; switchboards; switches, quick - action, with compound movement.-In electric switches mounted on motor - vehicle switchboards for changing connexions, and wherein the movable switch member is turned for effecting the change and moved axiaily to close the circuits the movable member has an extension to which the knob m is fixed, formed with a circular part n and a square or other polygonal part o, the casing being formed with a similarly shaped polygonal lug c<1> where the extension passes through it. The squared part is rounded at the base, the rounded end riding over the lug c<1> as the knot is turned; a spring washers t between the casing and a blade carrier m<1> tends to keep the extension inwards, and, when the knob is turned, moves the switch exactly into the next position ready for its axial movement. The movable contacts are formed by cutting out and bending down blades from a plate p. The stationary contacts i, Fig. 3, are formed from a stamping with a connecting-lug i<1>. To ensure a snap action, an annular spring r is carried loosely by a cage s attached to the plate p; the spring works over a doubly-tapered part l on a pillar k, the spring being distended during its movement over the part l. The casing carries an ammeter d mounted as described in Specification 22176/14, the connexion to base contacts being effected by blades e. The casing is attached to suitable supports by clips b.
Patent GB-385870-A (GB)
Title: Improvements in and relating to cigarette making machines
IPC: A24C5/44
Filed: 1932-06-28
Abstract: 385,870. Cigarette-maldng machines. STEUART, F. G., 637, Niagara Street, Victoria, British Columbia, Canada. June 28, 1932, No. 18280. [Class 130.] In a manually-operated device J-shaped members 9 are secured to hingedly-connected endplates 10, 12, and are enclosed in an endless band 27. In the closed position the inner part of the belt is wrapped around discs 25 mounted on each endplate 10, such discs also acting as stops for the tobacco placed in the fold of the belt. An upstanding tongue 26 on each disc helps to fold inwardly any protruding fibres. The paper is inserted through a slot 6 formed between a recess in the upper bar 4 of the frame 3 and a transverse spacing bar 20 spanning the ends of the plates 12.
Patent GB-690830-A (GB)
Title: Improvements in or relating to mechanical integrating mechanisms
IPC: G06G3/08
Filed: 1949-02-02
Abstract: 690,830. Counting-apparatus. GOLDS, L. B. S., and EASTERN ELECTRICITY BOARD. Feb. 2,1949, No. 18327/50. Divided out of 690,801. Drawings to Specification. Class 106 (i). A mechanically-driven counter is combined with clock mechanism and with means for combining the speed of rotation of a member driven by the clock mechanism and of a member having a speed proportional to the intensity or rate of occurrence of events and for operatively connecting the counter to the clock mechanism when the intensity or rate reaches a predetermined limit and means for neutralizing the drive to the counter from the clock mechanism when the intensity or rate reaches another predetermined limit. The embodiment described is substantially the same as part of the subject - matter described in Specification 690,801 which is referred to.
Patent GB-111921-A (GB)
Title: Improvements in and relating to Guides for Oxy-acetylene Cutting Burners.
Inventor: HOGAN FREDERICK JOSEPH
IPC: F23D14/46
Filed: 1916-12-21
Abstract: 111,921. Hegan, F. J. Dec. 21, 1916. Mounting burners.-A guide for oxy-acetylene cutting-burners comprises a plate 7 provided with an eccentrically arranged burner-carrying tube 11 and rotatably mounted in anti-friction bearings in annuli 1, 4. For cutting holes of different sizes. the plate 7 is replaced by others in which the tube 11 is arranged at different distances from the centre: or, in a modification, the tube 11 is arranged adjustably in a graduated radial slot. Pointed and slotted supports 13 secured to diametrically opposed studs 12 are adapted to engage punch marks on the work for positioning the apparatus. The supports 13 may be replaced by others, Fig. 4, comprising a slotted strip 18 secured to a rod 21 to which is adjustably attached a pointed leg 26 or a pin 22 carrying a block 24 preferably tapered to engage an opening.
Patent GB-787600-A (GB)
Title: Improvements in or relating to methods of coating the inside of a curved or irregularly shaped transparent tube with fluorescent material
IPC: C09K11/02
Filed: 1955-06-24
Abstract: A method of coating with a fluorescent material the inner wall of an irregularly shaped tube which is formed of a number of interconnected tubular portions lying in a common plane, e.g. a discharge tube shaped to form a number of letters comprises filling the tube with a suspension of the material in a solution of an organic binding agent of high molecular weight, e.g. nitrocellulose alginates or synthetic resins, in a solvent having a boiling point between 30 DEG  and 150 DEG  C., e.g. acetone ethyl acetate or butyl acetate, removing excess suspension from the tube, arranging the tube so that the common plane is horizontal, and removing the solvent by reducing the pressure in the tube, but not to such an extent that the solvent will boil.  The excess suspension is that proportion which does not adhere to the tube. The pressure is reduced by connecting the tube to a vacuum pump. Fluorescent materials mentioned are calcium tungstate, magnesium tungstate, zinc beryllium silicate, cadmium borate and halophosphates.
Patent GB-463709-A (GB)
Title: Improvements in or relating to the manufacture of synthetic resins
IPC: C08G63/82
Filed: 1935-06-26
Abstract: Polyhydric alcohol-polybasic acid resins are prepared in the presence of copper in solution to yield products having a low acid number. The copper may be used in the form of salts, metallic copper, or it may be extracted from the walls of a copper vessel; suitable compounds include copper, preferably cupric, formate, acetate, phthalate, butyrate, laurate, palmitate, stearate, oleate, linoleate, tungate, oxide, hydroxide, carbonate, succinate, fumarate, maleate, citrate, malate, tartrate, adipate, sebacate, azelate, caproate, benzoate, myristate, naphthylate, naphthalate, and glycerate.  The presence of an alkaline material appears to be beneficial. Resin-forming ingredients include polyhydric alcohols such as glycerol, glycol, sorbitol, pentaerythritol, diethylene glycol, trimethylene glycol, propylene glycol, diglycerol, polyglycols, polyglycerol, modifying agents such as fatty-oil acids, monobasic acids, monohydric alcohols, and polybasic acids such as phthalic, fumaric, succinic, adipic and azelaic acids.  In examples; (1) chinawood oil, linseed oil, glycerine and caustic soda are heated together and the product condensed with phthalic anhydride and glycerine in the presence of copper acetate; (2) cocoanut oil, glycerine and caustic soda are heated together and the product condensed with phthalic anhydride and glycerine in the presence of copper oleate; (3) linseed-oil acids, glycerine, phthalic anhydride and copper acetate are condensed; (4) phthalic anhydride, glycerine, diethylene glycol and copper acetate are condensed.