baber/WOPTO huggingface dataset:
Patent GB-1378804-A (GB)
Title: Lamp socket
IPC: F21V19/00
Filed: 1972-05-18
Abstract: 1378804 Lamp holders ROBERT BOSCH GmbH 18 May 1972 [19 May 1971] 23405/72 Heading H2E A lamp socket, e.g. for motor vehicle lights, comprises a plastics housing 10 having a flange 16 carrying walls 20, 21 and 22, and 25 and 26 which together support and hold a contact 11 having an earthing bar 38 and lugs 34 to receive the locating pins in the base of a lamp. As shown, resilient walls 20, 21 and 22 have knife edges 23 and flanges 24, and walls 25, 26 form ledges 27 at their lower ends. Current is supplied to the central electrode of the lamp by means of plate 12. Contact 11 is forced over knife-edges 23, is supported on the top of walls 25, 26 and held there by flanges 24. Recesses 35 and ledges 27 together form grooves to receive the lamp locating pins. Plate 12 is inserted through a slot in the bottom of cap 15, spring 13 placed around it and held in tension by a plastics cap 14 which is forced into slots 49 in plate 12 and projections 41 which bear on the outside of cap 15. The housing is inserted in an aperture in, e.g. a reflector and held there by undercut portions 32 of walls 29 which bear resiliently against the sides of the aperture. A hood (44, Fig. 2, not shown), held in place by co-operation of a lip (55) with flange 17 seals the rear of the housing. Flange 17 may also be used to prise the housing out of the reflector aperture.
Patent GB-1309994-A (GB)
Title: Preparation of tertiary alkyl esters of alpha-isothiocyanate  carboxylic acid
IPC: C07D233/56
Filed: 1971-04-19
Abstract: 1309994 α - Isothiocyanate carboxylic acid esters; N,N - thiocarbonyldi - imidazole STAMICARBON NV 19 April 1971 [18 Feb 1970] 23566/71 Heading C2C Novel t-alkyl esters of α-isothiocyanate carboxylic acids of the formula wherein R 3  is a C 4-7  t-alkyl group, R 1  is a hydrogen atom or a residue of an amino acid and R 2  is a hydrogen atom or an optionally substituted C 1-3  alkyl group, are prepared by reacting the corresponding amino acid esters with phosgene or with heterocyclic thiocarbonyl compounds. N,N - Thiocarbonyldi - imidazole may be obtained by reacting thiophosgene with imidazole.
Patent GB-988305-A (GB)
Title: Conversion of polychlorocopper phthalocyanines and polychlorobromocopper phthalocyanines into pigment form
Inventor: GEEREN HERMANN
IPC: C09B67/04
Filed: 1963-06-13
Abstract: Polychloro and polychlorobromo copper phthalocyanines which have been subjected to a grinding process, with or without a grinding auxiliary in the presence or absence of a liquid of the benzene series, is heated at a temperature of 70-210 DEG  C., preferably 100-150 DEG C., in the presence of a liquid of the benzene series which is then removed by conventional means, e.g. filtration or steam distillation. The grinding auxiliaries may or may not be removed before the heating process at 70-210 DEG  C. Liquids of the benzene series used are preferably those which are not miscible with water, e.g. benzene, toluene, xylene, chlorobenzene and nitrobenzene.
Patent GB-155909-A (GB)
Title: Improvements in or relating to liquid fuel furnaces
IPC: F23C99/00
Filed: 1919-09-25
Abstract: 155,909. Thornycroft & Co., Ltd., J. I., and Mackie, R. Sept. 25, 1919. Liquid-fuel furnaces.-In a liquid-fuel furnace adapted to burn coal, either alone or in conjunction with oil, means are provided for ensuring that when the furnace door is opened, the supply of oil or of both oil and air is cut off. In the construction shown, the oil-supply valve b is operated by the spindle d to which is attached the hand-lever g; if the closing of this valve has been overlooked, the act of opening the furnace door c causes the lug m on the door to engage with the lever arm h, thus operating the spindle d and cutting off the supply of oil. The usual air-admission valves on the furnace front are so connected by links n, o, n<1>, o<1>, n<2>, o<2>, to the spindle d that they are opened or closed simultaneously with the opening or closing of the oil valve b.
Patent GB-767757-A (GB)
Title: Process for polymerizing chlorotrifluoroethylene
IPC: C08F14/24
Filed: 1954-08-16
Abstract: Polychlorotrifluorethylene and copolymers of chlorotrifluorethylene with vinylidene fluoride are made by polymerizing in aqueous solution containing a water-soluble polymerization catalyst in the presence of a perhaloalkanoic acid of the formula F(CClFCF2)nCClFCOOH where n is an integer, or an alkali metal or ammonium salt thereof.  The reaction may be terminated before complete conversion. Perhaloalkanoic acids mentioned are those obtained by the partial oxidation of polychlorotrifluoroethylene of boiling point between 125 DEG  and 220 DEG  C. at 1 mm. pressure and molecular weight about 1000, and acids of boiling point slightly higher than 50 DEG C. at 1 mm. pressure and of molecular weight about 900.  The catalyst may be potassium, sodium or ammonium persulphate mixed, if desired, with reducing agents such as sodium bisulphite.  The polymer as recovered from the polymerization medium may be ground to a particle size below 1.0 micron and dispersed in water to form a hydrosol or an organic liquid to form an organosol. Specification 765,700 is referred to.
Patent GB-1060966-A (GB)
Title: Mine roof support
IPC: E21D11/40
Filed: 1964-06-09
Abstract: 1,060,966. Setting devices for mine roof supports. M. VON LINSINGEN, [trading as BOCHUMER EISENHUTTE HEINTZMANN & CO.]. June 9, 1964 [Sept. 21, 1963], No. 23899/64. Heading E1E. A mine arch comprising overlapping flanged channel members 1, 2 held by clamps 3 is preloaded against the roof by a removable hydraulic cylinder 4 whose foot 9 abuts the upper end of member 1, the piston 6 carrying pulling means 5 hooked on to the lower end of member 2. A finger 10 on the foot 9 engages between the members 1, 2. The means 5 may comprise a wire rope or a pair of rods or plates and is removably attached to the piston 6. The cylinder 4 may be single- . or doubleacting.
Patent GB-444749-A (GB)
Title: Improvements in apparatus for increasing the "field of vision" in aircraft
IPC: B64D7/02
Filed: 1934-08-20
Abstract: 444,749. Observation devices for aircraft. DRABBLE, J. E. L., 11, Beaulieu Villas, Seven Sisters Road, Finsbury Park, London. Aug. 20, 1934, No. 23934. [Class 103 (ii)] [See also Group XX] To obtain a comprehensive view of the area beneath an aircraft an objective of relatively short focus and wide angle, e.g. 45‹ or more, is disposed in a position free from obstruction in the direction of view desired and forms an image on a plane close to the objective, the image so formed being viewed in a device conveniently placed for the pilot or crew. In the form shown the objective C in the floor of the fuselage A of an aeroplane forms an image on a screen D in the focal plane of the objective C. A reflector F and lenses F1, F2, in a tube E cause an erected image of the image on screen D to be formed on a screen G furnished with a hood H. The lens C and screen D may be mounted in a carrier arranged to be rocked under control from the cockpit. The tube E instead of being right-angled as shown may pass straight from the cockpit B and terminate with objective C free from obstruction forwardly and downwardly. A graticule may be included to enable drift to be determined.
Patent GB-651607-A (GB)
Title: Improvements in or relating to cross-bar switches for use in automatic telephone systems
IPC: H01H67/26
Filed: 1948-09-13
Abstract: 651,607. Cross-bar switches. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Sept. 13, 1948, No. 23990. Convention date, Sept. 16, 1947. Addition to 647,506. [Class 40 (iv)] A cross-bar switch as described in the parent Specification is modified by mounting the contact sleeves 10, which engage the fixed contact wires 1, in a contact box 53, Fig. 1, separate from the frame 2 of the switch. A similar contact box 54, Fig. 2, is provided for the connections to the movable contact wires 17. This arrangement permits the switches to be mounted in adjacent racks 59, 60 as shown in Fig. 3. If the fixed contact wires 1 are withdrawn, by means of the handle 5, far enough to be clear of the contact-sleeves 10, as shown for switch 61, the switch may then be removed from the rack. The contact boxes 54 are preferably not more than half the height of the switch frames 2, so that the switches may be arranged back-to-back as in Fig. 4.
Patent GB-1304153-A (GB)
IPC: G02B6/28
Filed: 1971-04-19
Abstract: 1304153 Changing refractive index of transparent polymers WESTERN ELECTRIC CO Inc 19 April 1971 [19 March 1970] 24027/71 Heading C3P [Also in Division G2] A method for producing a pattern of changed refractive index in or on a body of transparent material comprises polymerizing the material, sensitizing the material for subsequent molecular structural change (cross-linking) tending to increase the refractive index upon exposure to radiation, and exposing the body to the radiation. The radiation may be electromagnetic, preferably ultra-violet, or a beam of electrons or neutrons. The material is preferably aged after exposure. The body may be a poly-acrylate (preferably poly-(methyl methacrylate)), and sensitization may be by exposing the monomer to diffuse U.V. in the presence of oxygen, by incorporating peroxides, e.g. dicumyl peroxide, t-butyl perbenzoate, into the monomer, or, in thin samples, into the polymer.
Patent GB-240650-A (GB)
Title: Improvements in weighing apparatus
IPC: G01G1/00
Filed: 1924-10-11
Abstract: 240,650. Automatic Scale Co., Ltd., and Blick, E. L. Oct. 11, 1924. Indicating-mechanism; pendulum-weight apparatus.-In a weighing-apparatus of the kind wherein a graduated weights chart and an index pointer mounted on independent aligned knife-edges or pivots move in opposite directions on the application of a load, the load is transmitted to the indicating-mechanism through a common intermediate member forming part of a parallel motion linkage whereby the locus of the point of application of the load from the intermediate member to the two separately-mounted units of the indicating mechanism is a straight line. The load is transmitted by a draw-rod 3 to a parallel motion linkage 12, 17, 18 which is connected by cone pivots 20 and flexible ribbons 24, 31 to two independent pendulum resistants 29, 37 carrying respectively the indicating pointer 28 and the graduated weight chart 36. The ribbons are arranged to rotate the pointer and chart in opposite directions. The fulcra of the pendulum resistants are in alignment and lie in the same vertical plane as the axis of the link 17. A tare beam 42 with a dash-pot 44 is coupled to the lever 12.
Patent GB-179872-A (GB)
Title: Improvements relating to the driving gear or power transmitting elements of internal combustion and other engines
IPC: F01B7/12
Filed: 1921-09-10
Abstract: 179,872. Goodman, J. H. Sept. 10, 1921. Driving-gear. - The upper and lower pistons k, l in each of a pair of cylinders are connected to two beams m, n which drive independent shafts e, d rotating in opposite directions. The two shafts are geared together, power being taken off either one of the shafts d, e or off the geared shaft f. The cylinder ends may be closed by a guide plate o, through which the connecting rods l<1> pass, the joint being made by the ball and socket o<1>; the cylinder ends can then be used as compression pumps for the mixture.
Patent GB-694055-A (GB)
Title: Thermostatically-controlled refrigerant expansion valve
Inventor: EHLKE EDWARD CARL
IPC: F25B41/06
Filed: 1950-10-03
Abstract: 694,055. Refrigerating. AUTOMATIC PRODUCTS CO. Oct. 3, 1950, No. 24182/50. Class 29 [Also in Group XXIX] A thermostatically-controlled expansion valve for controlling refrigerant flow to an evaporator, comprises a casing 10 with an inlet 12 and an outlet 14 to the evaporator, a closure member 16 controlling flow from inlet to outlet, a diaphragm 48 connected by a a stem 40 to the member 16 and acted on by outlet pressure in a chamber 46, a second diaphragm 62 connected to the first by a lost-motion device 90 and urged to inoperative position on a shoulder 92 by an adjustable spring 68, and a thermal bulb 80 connected to the space 84 between the diaphragms. The closure member is controlled by outlet pressure acting against thermostatic pressure on the diaphragm 48 until the thermostatic pressure becomes sufficient to move the diaphragm 62 and take up the lostmotion connection whereupon outlet pressure acts directly against the spring 68. The bulb is sensitive to evaporator outlet temperature, and when such temperature rises sufficiently to part the diaphragms, e.g. after defrosting, the outlet pressure in chamber 46 will also be sufficient to close the valve, whereupon the compressor can pull down the refrigerating system without overload. An adjustable spring 34 is provided for varying the degree of superheat at the evaporator outlet.
Patent GB-1391617-A (GB)
Title: Automatic chord playing apparatus
IPC: G10H1/36
Filed: 1972-05-23
Abstract: 1391617 Electrophonic musical instruments WURLITZER CO 23 May 1972 [17 June 1971] 24252/72 Heading G5J An electrophonic organ comprises a plurality of keys and pedals with corresponding tone generators, a plurality of electronic gating means connected to the tone generators, means for producing two sets of pulses and directing one set to pass pedal tones through first gating means and the other set to pass musically related chords through second gating means and means interconnecting the pedals and the second gating means to render the latter conductive independently of the pulses.  A system of a clock 10a, Fig. 2, and logic circuits 12a, 14a generates strings of pulses which, after shaping to the desired form, open diode gates to produce percussion, bass notes and chords in a rythm selected by manual switches. Each gating pulse is shaped by a monostable (120 or 152, Fig. 3, not shown), a diode (126 or 162) and a capacitor (128 or 164) to have a fast rise, a short plateau, and an exponential decay, to give the desired attack and decay characteristics to the sounds. In the preferred embodiment LC master oscillators 64 and dividers 66 produce four octaves of square wave tones which, with suitable filtering, are used for the keyboard and pedals, for the automatic bass notes and chords, and for some of the percussion sounds. Other percussion sounds are obtained from a white noise source. For the bass notes, one of seven tones from the dividers 66 is selected by a push-button switch 300, Fig. 4, and fed, via a divider 54a (86, Fig. 3, not shown) which halves the frequency, a diode gate (90) and an amplifier (94) to an output line 26a (96). For the chords, gating pulses are fed through one of twenty-one push-button switches such as 258, corresponding to minor, major and major seventh chords for the seven bass notes, to a diode matrix, part of which is shown at 256. The matrix routes the pulses to appropriate diode gates (shown in the centre of Fig. 4) to open the gates to pass appropriate tones from the points 236 (fed from the dividers 66) to a line 98, from which the tones pass through an amplifier (100, Fig. 3, not shown) to the output line 26a (96). There are five lines (Fig. 3, not shown) carrying pulses to the pulse-shaping circuits. Pulses on the "bass drum" line (116) produce bass notes. Pulses on any or all of the lines, according to the settings of rhythm switches, produce chords. The pulse-forming circuits can be disabled, if desired, so that chords and bass notes are sounded whenever the push-buttons are operated. In a simplified embodiment (Fig. 1, not shown) the pedals and keyboard are omitted and LC oscillators generate tones for the chords directly, only one divider (54) being retained for the bass notes. Also described is an arrangement (Fig. 5, not shown) in which only manual operation is possible, the pulse-forming circuits being omitted.
Patent GB-260563-A (GB)
Title: Improvements in or relating to urinals
IPC: E03D13/00
Filed: 1926-10-01
Abstract: 260,563. Oesch, J. Oct. 29, 1925, [Convention date]. Urinals are painted with asphalt varnish which is allowed to dry, after which a second coat is applied which is treated while still moist with a disinfecting oil. The Specification as open to inspection under Sect. 91 (3) (a) states that the treatment is with oil or a disinfectant. This subject-matter does not appear in the Specification as accepted.
Patent GB-404242-A (GB)
Title: Improvements in or relating to centrifugal drums
IPC: B04B7/08
Filed: 1933-09-01
Abstract: 404,242. Centrifugal machines. RAMESOHL & SCHMIDT AKT.-GES., Oelde, Westphalia, Germany. Sept. 1, 1933, No. 24347. Convention date, Sept. 24, 1932. [Class 23.] A centrifuga separator drum particularly for use in the manu facture of yeast has radially dis posed discharge ports 5 arrangec in web-like reinforcements or ribs 8 protruding fron the drum botton 9. The material is supplied through the central distributer 1 ; the yeast is discharged through calibrated nozzles 6 in the ports 5 and the remainder through the outlet 7. The ribs 8 assist in carrying the material round with the drum, and they may be extended, as shown, above the height necessary for the ports 5. The distributer plate 10 rests in recesses in the ribs 8 and the ports 5 may have interchangeable linings.
Patent GB-1397442-A (GB)
Title: Stabilization of lead chromate pigments
IPC: C09C1/14
Filed: 1972-05-24
Abstract: 1397442 Stabilized chrome yellow HOECHST AG 24 May 1972 [2 June 1971] 24498/72 Heading C1A [Also in Division C4] Orthorhombic chrome yellow or tetragonal molybdate red of stable crystal phase are produced by mixing a solution of a lead salt with a soluble metal salt which produces an insoluble phosphate on reaction with phosphoric acid or a soluble phosphoric acid salt, precipitating the pigment by adding a chromate with or without a sulphate and molybdate in addition, adding phosphoric acid or a soluble phosphoric acid salt in an amount equivalent to the soluble metal salt to the pigment suspension obtained, and adjusting the suspension to neutral. In a modification an excess of the lead salt is used instead of the mixture of lead salt and soluble metal salt. Preferably the soluble metal salt is one of Zn, Mg of Ce, and the amount of metal phosphate applied by precipitation is 0À1-8% by wt. of the chrome yellow or molybdate red. In Example 1 aqueous solutions of lead nitrate, zinc oxide and nitric acid are mixed, and an aqueous solution of sodium bichromate and ammonium sulphate is added thereto. Aqueous soda is added followed by phosphoric acid, and further soda to adjust the pH to 7À5, the pigment then being filter washed and dried. The zinc oxide can be replaced magnesium oxide cerium chloride or merely a larger amount of lead nitrate. In Example 2 molybdate red is prepared using an excess of lead nitrate and when the desired shade of the tetragonal phase is reached a solution of Na 2 HPO 4 .12H 2 O is added the pigment then being neutralized and washed. The pigment suspension produced could then be treated with sodium silicate and an antimony and solution in a known method.
Patent GB-519299-A (GB)
Title: Improvements in or relating to steam superheaters
IPC: F22G5/04
Filed: 1938-08-19
Abstract: 519,299. Steam superheaters. WARING, A. H., IMPERIAL CHEMICAL INDUSTRIES, Ltd., and INTERNATIONAL COMBUSTION, Ltd. Aug. 19, 1938, No. 24516. [Class 123 (iii)] In a superheater comprising elements through which the steam passes in the same direction as the heating gases, some of the elements 3b extend across a portion only of the heating flue and part of the heating gases which have passed over the first part 3a of the superheater are made to byepass the second part under the control of a damper 5 for the purpose of regulating the superheat. Specifications 465,223 and 492,588 are referred to.
Patent GB-1007622-A (GB)
Title: A novel acetamide derivative
Inventor: CREIGHTON MARTHA MABEL
IPC: C07D217/14
Filed: 1964-02-18
Abstract: The invention comprises N-[2-(cyclohex-1-enyl)-ethyl] -cyanoacetamide and its preparation by reaction of N-[2-(cyclohex-1-enyl)-ethyl]-amine with methyl cyanoacetate.
Patent GB-475919-A (GB)
Title: Improvements in and relating to cleanable sieves
IPC: B01F15/00
Filed: 1936-09-11
Abstract: 475,919. Ball-and-ring mills ; sifting- apparatus. TRIGGS, W. W. (National Gypsum Co.) Sept. 11, 1936, No. 24794. [Classes 59 and 117] In a grid adapted to be cleaned by prongs each prong is arranged so that it is adapted to push through its associated opening material which has become jammed in the opening in a direction which is the same as that in which the material normally flows. As shown as applied to a ball-and-ring mill, a driving disc 20 with a serrated periphery 21 is mounted on a shaft 14 and drives the balls 24 around a ring 25 with a jumping motion. A sleeve 15 surrounds the shaft 14 and drives scrapers 28, 31, 32 at a speed different from that of the disc 20. The material such as gypsum mixed with other materials is discharged through gratings 43 provided with a handle 46 and mounted in a frame in the bottom of the pan. A comb 44 mounted on a semicircular disc 42 is provided with a handle 47 and the disc and grating are mounted on a common pivot 38. The grating is cleared by rotating the handle 46 and grating in a clockwise direction, and the area of the discharge outlet is regulated by rotating the handle 47 and disc 42 anticlockwise to cover up part of the grating.
Patent GB-415591-A (GB)
Title: An improved tennis net set
IPC: A63B61/02
Filed: 1933-09-08
Abstract: 415,591. Tennis nets. HAZELL, F., Balconies, Danbury, Chelmsford, Essex. Sept. 8, 1933, No. 24885. [Class 132 (ii).] A tennis net D is made of rustless metal. It may comprise chain link fencing as shown in Fig. 4, or woven fencing, Fig. 5, and is attached to rods E, threaded through eyebolts B screwed to the uprights A, anchored to the ground. The top line T of the net is provided with a shackle F for adjusting the tension thereof and may be covered with a canvas or metal strip.
Patent GB-203903-A (GB)
Title: A trouser press
IPC: A47G25/72
Filed: 1922-09-14
Abstract: 203,903. Lardner, F. W. Sept. 14, 1922. Trouser presses.-In a trouser press in the form of a box a the bottom of the box is provided with a horsehair &c. pad c and forms the lower board of the press. The upper board e, which also is preferably padded, has at its opposite edges pins i which engage when the upper board is pressed into place any of a series of holes in plates g arranged vertically on the sides of the box. Lifting handles f are provided on the upper board.
Patent GB-200409-A (GB)
Title: Improvements relating to portable gas and like heat-radiating apparatus
IPC: F24C3/04
Filed: 1922-09-14
Abstract: 200,409. Rowell, J., Rowell, R. H., and Roxburgh, A. B. Sept. 14, 1922. Gas stoves; cooking- stoves; canopies and hoods; reflectors.-A portable incandescent gas fire, having radiants c arranged horizontally above a burner b, is provided at the rear with a ventilated reflector or insulator comprising louvers m of polished metal or fireclay attached at their upper corners to the side standards a by screws n the heads of which serve as distance pieces. The slats m are made readily detachable by the provision of keyhole slots engaging over the screws n. A sheet of material having ventilating openings may be used instead of the louvers m. The canopy e of the stove is provided with a sliding hit-andmiss grid p, c, on which a kettle or the like can be heated.