baber/WOPTO huggingface dataset:
Patent GB-1208832-A (GB)
Title: Chlorinated homo- and copolymers of olefins
IPC: C08F8/20
Filed: 1968-02-14
Abstract: 1,208,832. Chlorinating olefin polymers. FARBENFABRIKEN BAYER A.G. 14 Feb., 1968 [24 Feb., 1967], No. 7228/68. Heading C3P. Chlorinated olefin polymers having a chlorine content of 60 to 72 weight per cent are prepared by treating the polymer in organic solvent solution with chlorine and simultaneously with oxygen in the presence of radical formers or actinic light at 50‹ to 100‹ C., the oxygen content of the reaction mixture being 0.5 to 10 weight per cent based on the chlorine. The polymer may be of ethylene, propylene, butylene or isobutylene, optionally with vinyl chloride, vinylidene chloride, vinyl acetate, vinyl propionate, acrylic or methacrylic acids, or unsaturated sulphonic acids. The products may be stabilized with conventional epoxy ether and metal salt stabilizers, and are useful as lacquer binders. Examples describe the chlorination of (1) polyethylene in carbon tetrachloride in the presence of benzoyl peroxide, chlorine and air, (2) an ethylene/vinyl acetate copolymer in carbon tetrachloride in the presence of azodiisobutyronitrile, chlorine and oxygen, (3) an ethylene/vinyl chloride copolymer in chloroform in the presence of benzoyl peroxide, chlorine and oxygen, and (4) an ethylene/methacrylic acid copolymer in carbon tetrachloride in the presence of benzoyl peroxide, chlorine and air.
Patent GB-291715-A (GB)
Title: Improvements in pits for use in the repair, examination or the like of automobiles
IPC: B60S5/00
Filed: 1928-03-08
Abstract: 291,715. Martin, T. March 8, 1928. Inspection and repairing pits.-A garage pit comprises a portable structure let into the ground and carrying two or more spaced trackways. The casing is bottomless and comprises upper and lower rectangular frames 4 connected by standards 11, the lower frame having transverse braces 10. The sides and end are temporarily closed by plates 8. The tracks comprise channels 13 provided with upstanding side guards 16. 17 and end guards 15, to prevent vehicles running into the pit. A platform 18 is provided between the guards 16. Waste oil is collected in a tank 19 sunk in the ground and carrying a funnel 27 adjustable as regards both height and position. A discharge pipe 28 may be provided for pumping the oil out. Steps 14 give access to the pit. Two or more structures may be connected together.
Patent GB-458170-A (GB)
Title: Process for the combustion of heavy oils and burner for applying such process
IPC: F23D11/04
Filed: 1935-03-08
Abstract: 458,170. Liquid-fuel burners. PISSART, V., 6, Rue de Strasbourg, Paris, and DUPUIS, F., 47, Chef-de-Ville, Clamart, Seine, both in France. March 8, 1935, No. 7251. Void [Abridged as open to inspection under Sect. 91 of the Acts, Sept. 16, 1935]. [Class 75 (i)] A liquid-fuel burner comprises a rotating turbine wheel a from the vanes of which the fuel fed through a passage j is flung off to mix with compressed air issuing from a nozzle d<1>. The shaft b carrying the wheel a may be rotated either by the air current impinging on the blades of the wheel or by mechanical means. The wheel a is preferably conical and is formed with a conical inner surface a<1>. The inlet valves for the fuel and air may be operated by arms n, o connected by a link p. The arm o may carry a weight q and be operated by the thermostat of a steam boiler. The fuel supply may be independently regulated by a needle valve m. The combustion air is delivered at right angles to the projected fuel particles.
Patent GB-988293-A (GB)
Title: Improvements in or relating to electrical connectors
Inventor: FRY BERNARD ALBERT GERALD
IPC: H02G3/08
Filed: 1963-02-22
Abstract: 988,293. Rivets. AVDEL Ltd. Feb. 24, 1964 [Feb. 22, 1963], No. 7259/63. Heading F2H. [Also in Division B3] A tubular rivet for use in making an electrical connection to a printed circuit board comprises a shank, a head, a grooved or apertured portion and a roughened exterior portion 8 adjacent the rivet head.
Patent GB-752369-A (GB)
Title: Improvements in or relating to polarised electric relays
IPC: H01H51/22
Filed: 1954-03-12
Abstract: 752,369. Electromagnetic relays. FLIGUE, W. DE, and LAVALLEE, P. L. March 12, 1954 [March 23, 1953], No. 7348/54. Class 38(5) A relay comprises a U-shaped magnetic member 1 having a core 3 energized by a coil 8 the. core being shunted through pole pieces 4, 5 by a permanent magnet 6. A balanced armature 2 is pivoted at 12 to the member 1 whereby one circuit for the magnet flux is formed by the pole pieces 4, 5, the armature, and member 1, and another circuit by the pole pieces and the core 3. The other end of the armature co-operates with a permanent magnet 9 mounted on the member 1 but magnetically separate from the latter. The relative effect of the magnets 6, 9 on the armature is adjustable by varying the reluctance of a non-magnetic spacer 7 associated with magnet 6. In one embodiment, the magnet 6 is preponderant so that the armature is attracted thereto when the coil 8 is de-energized, and the relay is operated by energizing the coil with current having such a polarity that the flux produced assists that of the magnet 6 whereby the apparent reluctance of the circuit 3 ... 6 is decreased and a smaller proportion of the permanent magnet flux traverses the armature and member 1, whereby the magnet 9 is able to operate the armature. In another embodiment, the magnet 9 preponderates and the armature is normally attracted thereto and is operated by energizing the coil 8 with current of a polarity to produce a flux opposing that of the magnet 6. In a further embodiment, the armature remains in whichever position it is moved by the coil, and is moved to its other position by energizing the coil with a current of opposite polarity. The core 3 has a conical portion 3b seating in a similar-shaped hole 1a in the member 1 and is fixed to the latter by a nut 3c. The armature carries contacts 2a, 2b.
Patent GB-1126858-A (GB)
Title: Polymerisation catalyst
IPC: C08F10/00
Filed: 1967-02-16
Abstract: 1,126,858. Polymerisation catalysts. STANDARD OIL CO. 16 Feb., 1967 [16 Feb., 1966], No. 7439/67. Addition to 1,045,178. Heading B1E. [Also in Division C3] The catalyst of the parent Specification No. 1,045,178 which comprises (a) a minor amount of an oxide of Mo in a sub-maximum valency state supported on (b) a high surface area (1-1500 m<SP>2</SP>/gm) Al 2 O 3  which has been hydrohalogenated at 150-500‹C and (c) one or more of sodium, lithium or calcium as promoters is modified in that the hydrohalogenation is effected in two stages-(1) at 200 up to 400‹C for “-5 hours and (2) above 400- 550‹C for “-5 hours.
Patent GB-943041-A (GB)
Title: 1-methyl-oestratriene-derivatives and the preparation thereof
IPC: C07J1/00
Filed: 1961-03-01
Abstract: The invention comprises steroids of the general formula: <FORM:0943041/C2/1> wherein R1 represents <FORM:0943041/C2/2> or =O, R2 represents a hydrogen atom or an alkyl or alkenyl group containing not more than 5 carbon atoms or an ethinyl group, R3 represents a hydrogen atom or an acyl group, R4 represents a hydrogen atom or an alkyl group containing not more than 5 carbon atoms or an acyl group, and R5 represents H, OH or =O, and the corresponding compounds obtained by reacting a 17-keto compound of the above formula with hydroxylamine or an isonicotinic hydrazide, and the preparation of the steroids of the above general formula by treating steroids of the general formula: <FORM:0943041/C2/3> wherein R1, R2 and R3 have the above significance, with a strong acid such as perchloric, sulphuric acid or p-toluenesulphonic acid, or a Lewis acid such as zinc chloride, in the presence of a carboxylic anhydride and, if desired, saponifying the 3-acyloxy group in the product of the first formula to form the corresponding 3-hydroxy compound and, if desired, esterifying or etherifying the hydroxy group.  The above process may be modified in that a keto group or keto groups present in the 11- and/or 17-positions of an intermediate or final product is or are reduced to a hydroxy group or hydroxy groups and, if desired, a 17-hydroxy group may be acylated. The above process may also be modified in that either before or after the acid treatment, a 17-keto group is reacted with a Grignard reagent or with an alkali metal acetylide and, if desired, by a subsequent hydrogenation and/or acylation reaction or reactions to form at the 17-position a grouping of the formula <FORM:0943041/C2/4> , wherein R2 and R3 have the above significance, or a 17-keto group in the final product is reacted with hydroxylamine or an isonicotinic hydrazide which may be substituted to form a 17-oxime or a 17-isonicotinic hydrazone.  Pharmaceutical compositions having an antilipaemic activity, comprise as the active ingredients steroid compounds of the first general formula above and an additive. The composition may be in the form of a tablet, pill, dragee, suppository, emulsion, suspension or solution for injection.
Patent GB-653180-A (GB)
Title: Improvements in or relating to machine tools
IPC: B23Q5/26
Filed: 1948-03-12
Abstract: 653,180. Planing-machines. ROCKFORD MACHINE TOOL CO. March 12, 1948, No. 7570. Convention date, May 15, 1947. [Class 83 (iii)] [Also in Group XXIV] A hydraulic machine tool comprises a drive for reciprocating a work-table 28 in time with a reciprocating cutting member 24, an independent rapid-motion drive, and unidirectional means to permit the former drive to actuate gear means to drive the table during only one phase of its reciprocating cycle and to permit the rapid-motion drive to actuate said gear means during any part of said cycle without disengaging the reciprocating drive. The worktable 28 is screw-fed horizontally or vertically either by a reciprocating hydraulic piston 79, Figs. 5 and 9, acting through a reversible ratchet clutch 95, Fig. 3, or by an electric motor for fast motion. Pressure-fluid is supplied by a twin-pump 33, Fig. 9, rotated by an electric motor 34, Fig. 1. The machine is started and stopped by a manually-operated valve 45, Fig. 9. The tool-head 24 is reciprocated through lever means 39 by a hydraulic piston 37 which is reversed by a valve 75 actuated by dogs 83, 84 on the head 24. Coincidentally with reversal of the piston 37, the piston 79, which carries rack-teeth 92, is also reversed. The rack 92 meshes with a pinion 93 on a shaft 94 also carrying a gear 96 which is mounted thereon through the ratchet clutch 95 and which meshes with a gear 113 engaging a gear 114. Either of the gears 113, 114 is clutched to the vertical or horizontal feed screw by a manually-operated lever 116. The electric motor providing the rapid motion drives a shaft 121, Fig. 3, which drives the gear 96 through a ratchet clutch 118 and the ratchet clutch 95. A hand-lever 112, Fig. 1, is movable horizontally to reverse simultaneously the directions of motion transmitted by the two ratchet clutches and, at each end of its movement, it may be raised to make an electrical contact to start the rapid motion. During rapid motion the feed motion mechanism continues uninterrupted although ineffectively. The rate of feed is controlled by a screw 91 limiting the stroke of the piston 79.
Patent GB-1376022-A (GB)
Title: Bright chromium plating
IPC: C25D3/06
Filed: 1972-02-18
Abstract: 1376022 Electro-depositing chromium DIAMOND SHAMROCK CORP 18 Feb 1972 [19 Feb 1971] 7598/72 Heading C7B An aqueous bright chromium plating bath comprises a complex water-soluble chromic compound containing carboxylic (glycolic, lactic and/ or oxalic) acid and halogen (F and/or Cl) constituents, the molar concentration of Cr being 0.5 to 3 (i.e. 26 to 156 g/l Cr), the molar ratio of Cr to carboxyl constituent being 1:0.7 to 1:3 and of Cr to halogen being 1:0.1 to 1:3.5. The complex may be prepared by combining Cr metal or CrO 3  with the carboxylic acid and e.g. HCl, or reacting chromic halide e.g. CrF 3  with the carboxylic acid. The bath may also contain 50-200 g/l NaCl and/or KC1 to enhance conductivity and 10-70 g/l boric acid or an equivalent such as borax, boron oxide and/or Na oxyfluoborate. Alkali metal carbonate or hydroxide may be added to adjust pH within range 1.8 to 4.9. An aqueous concentrate of the reaction complex from the halogen, carboxylic acid and chromic compound contains at least 50 g/l of Cr for dilution with aqueous medium for preparing a new plating bath or sustaining a working bath. An anode of graphite, Pt or platinized Ti may be used. The substrate may be of steel, brass, bronze, Cu (alloy), a Zn die casting, or Ni or activated plastic surface.
Patent GB-1132311-A (GB)
Title: Method and apparatus for detecting unevenness in a surface of an article and sorting inspected articles
Inventor: QUINN RICHARD MONROE
IPC: B07C5/12
Filed: 1966-02-22
Abstract: 1,132,311. Detecting surface unevenness photo-electrically. BALL BROS. CO. Inc. Feb.22, 1966, No. 7658/66. Heading G1A. In a method and apparatus for detecting surface unevenness of an article and sorting inspected articles, a plurality of light beams are focused on respective portions of a surface of an article, the article is moved relative to the light beams, and the outputs of light sensing means positioned in the path of respective beams beyond the focal points of the beams are compared to produce a rejection control signal when the outputs are inconsistent. Bottles fed on a conveyer 11. Fig. 1, are released in turn by an arm 19 which is rotated by a solenoid 15 in the output circuit of an astable multivibrator 16. Fig. 3, the bottles then passing through a presence detecting light beam 20 to a testing position. The testing sequence is initiated by the termination of the interruption of the beam 20 which actuates a monostable multivibrator 24 to energize through a further multivibrator 25, a solenoid 28, whereby two pairs of idle pulleys 35 are advanced to bring the bottle into contact with a pair of driving wheels for a predetermined time. At the conclusion of the test a brake is applied by the reversing of multivibrator 25 and according to the results, "reject" or "pass" solenoids 66, 78 actuate a deflector 71 to direct the bottle. Two beams of light are separately focused on the rim and a pair of photo-voltaic cells 46, 46' coupled backto-back in the base circuit of a transistor respond to any changes in illumination intensity. The inspection is delayed until a desired rotary speed is achieved by a multivibrator 26 which, after a desired interval relapses and causes a pulse to be applied to an "and" gate 39 in the test signal output path. This prevents false signals arising from the entry and exit of the bottle to and from the test area. The test signal is passed through a differentiating amplifier 50 which discriminates between "down" fault pulses and "wobble" frequencies, and a trigger 52 which passes only rejection signals bigger than a predetermined value and thus tolerates poor seams and out-of roundness up to an acceptable limit, to the "and" gate 39, and a reject signal is stored in a bi-stable multivibrator 40. A "saddle" defect operates trigger 52 towards the conclusion of the test when wobble has subsided if a "down" defect has not been detected, the switch 49 being operated at this time by multivibrator 27 to by-pass the differentiating amplifier in order to improve response. The storage multivibrator applies a reject pulse to a reject "and" gate 41 and a pulse to an inhibit passgate 43. Reversion of the multivibrator 25 scans the gates 41, 43 to enable sorting and resets the store 40 for further operation.
Patent GB-589689-A (GB)
Title: Improvements in and relating to centrifugal compressors
IPC: F02C6/12
Filed: 1945-03-27
Abstract: 589,689. Bayonet fastenings. BRITISH THOMSON-HOUSTON CO., Ltd. March 27, 1945, No. 7664. Convention date, March 31, 1944. [Class 44] [Also in Group XXVI] A supercharging compressor driven by an exhaust driven turbine 10 has a volute chamber 27 with a substantially uniform external diameter and extending inwards, as at 42, to provide the increasing cross-section. The impeller 16 discharges into a diffuser with parallel walls 31, 32 and a series of peripheral notches 34 as outlets. The diffuser is secured to one casing part 24 by shouldered studs 38 and to the other casing part 23 by a multi-toothed bayonet fastening 43, 44. As shown in Fig. 2, radial projection 44 with bevelled front edges 45 on one disc-like part pass under the overhanging portions of lugs 43 on the other disc-like part.
Patent GB-1306253-A (GB)
IPC: B23K20/12
Filed: 1970-02-18
Abstract: 1306253 Welding by presshre TOYODA JIDOSHOKKI SEISAKUSHO KK 18 Feb 1970 [20 Feb 1969] 7716/70 Heading B3R Friction-welding apparatus comprises a first work-holding chuck 12 mounted on a drive spindle 9 driven through a clutch 13 from a motor 1, and a second chuck 21 mounted on a freely rotatable, driven, spindle 18, a further clutch 25 providing for selectively connecting the driven spindle 18 to a braking spindle 23 having a brake 26. A housing 16 which carries the spindles 18, 23 is slidably mounted for the purpose of engaging the workpieces 11, 20 under the thrust of an hydraulic piston 17. Variable inertia of the driven spindle system is provided by detachable weights 22. In a method of welding using the apparatus, the first workpiece 11 is brought up to a predetermined speed and the two workpieces urged into frictional contact, the clutch 25 being disengaged. When relative rotation between the workpieces has ceased, drive to the first chuck 12 is discontinued by operation of the clutch 13 and the welding being completed, the workpiece is released from one of the chucks; e.g. the first chuck 12. With the braking spindle looked against rotation clutch 25 is engaged and serves to brake the spindle 18 for a predetermined and variable period after which the brake 26 is released and spindle 18 is further slowed and it becomes synchronized with the braking spindle 23. The brake 26 is then reapplied to bring the two spindles 18 and 23 to rest together. By this method of operation heat is dissipated partly in the clutch 25 and partly in the brake 26. A cutting tool 27 is provided for removing the weld upset.
Patent GB-235664-A (GB)
Title: Improvements in and relating to sound-transmitting or emitting apparatus
IPC: H04R11/02
Filed: 1924-03-26
Abstract: 235,664. British Thomson-Houston Co., Ltd., Young, A. P., and Butcher, J.H. March 26, 1924. Magnetic instruments; diaphragms. - A telephone transmitter or receiver comprises a cylinder mounted coaxially within a ring, an electromagnetic vibrator unit at each end of the cylinder, and a pair of diaphragms closing opposite sides of the ring and each operatively associated with one of the vibrator units. Fig. 1 shows the application to a loudspeaking telephone adapted to be supported on a rigid stand or suspended from a bracket or ceiling. The cylinder 14 is carried within an inner ring 13 supported by radial arms 12 from an outer ring 11, and the edges of the diaphragms 24 are clamped between rings 26 by screws 27 securing them to the ring 11. These diaphragms, made e.g. of cellulose acetate, wood, fibre, stiff cardboard. aluminium, or copper, are preferably conical as shown, and are each made resilient by the provision of an annular groove 25. The apex of each diaphragm is connected by a rod 28 to an armature 21 suspended by wires 22 within a ring 19 screwed on the adjacent end of the cylinder 14. The permanent magnets 16 with their pole-pieces 18 are adjustable simultaneously towards and from the armatures 21 by the rotation of a rod 32 mounted within one of the arms 12, this rod being formed with right- and left-hand screw threads engaging sleeves 29 carrying the inner ends of links 35 connected to the magnets. The armatures 21 may be constructed as described in Specification 243,064. According to the Provisional Specification, the suspension of the armatures and the construction of the magnetic devices may be as described in Specifications 226,310 and 218,038 respectively.
Patent GB-375288-A (GB)
Title: Improvements in materials for roads and ways, floors, walls, sports grounds and the like, and other purposes
IPC: C08L19/00
Filed: 1931-03-13
Abstract: The rubber paving &c. compositions described in the parent Specification, comprising crushed waste rubber &c., absorbent earthy or cindery material and latex with or without an additional binder such as bitumen, are modified by treating the ingredients or the mixed composition with mineral oils, e.g. benzene, naphtha, petrol, tar oils, a mixture of benzene and anthracene, &c.  The oil may be applied to one or both of the dry ingredients before or during the addition of the latex binder, or may be applied to a formed strip of the material.  When a layer of rubber composition is combined with a bitumen sheet or laid on asphalt &c. the bitumen may be softened by heat or by spraying it with tar oil &c.  In an example, to form a road or paving having a bitumen surface on a rubber foundation, a strip of rubber material prepared according to the parent Specification, or modified by the addition of oil, is dipped in or sprayed with tar oil, or other oil having a solvent or plastifying action both on rubber and bitumen, prior to the application of the bitumen which may be either molten or emulsified.
Patent GB-416097-A (GB)
Title: Improvements in or relating to filtering or straining apparatus
IPC: B01D29/00
Filed: 1933-03-15
Abstract: 416,097. Strainers. AUTO-KLEAN STRAINERS, Ltd., and BELDAM, W. R., 40, Trinity Square, Tower Hill, London. March 15, 1933, No. 7855. [Class 46.] Straining-apparatus is provided with two or more superposed straining layers one of which is composed of a coiled and stranded or otherwise twisted filament and another of a plain coiled filament. Fig. 1 shows an arrangement in which an inner layer is formed by coiling a stranded wire 11 on a rigid support and an outer layer by coiling a plain wire 22 in the turns of the wire 11. The wires may be separated by fabric 23. The liquid strains inwards and the outer layer may be kept clear by means of a scraper 28 as described in Specification 396,156. Fig. 3 shows a modified arrangement in which the inner layer is formed of two stranded wires 25, 26 wound as a two-start spiral and the outer layer by winding a plain wire 27 in the helical groove between the two inner wires. Instead of wire strands of fibre, sometimes reinforced by wire, or of rubber may be used.
Patent GB-1201590-A (GB)
Title: Water-insoluble monoazo dyestuffs
Inventor: KRUCKENBERG WINFRIED
IPC: D06P3/82
Filed: 1969-02-13
Abstract: 1,201,590. Monoazo dyes. FARBENFABRIKEN BAYER A.G. 13 Feb., 1969 [23 Feb., 1968], No. 7883/69. Heading C4P. The invention comprises water-insoluble monoazo dyes of formula wherein R is CH 3  or C 2 H 5 , R<SP>1</SP> is H or -COR<SP>11</SP>, R<SP>11</SP> is CH 3 , C 2 H 5 , OCH 3  or OC 2 H 5 , x is 1 or 2 and y is 0, 1, 2 or 3, with the proviso that when x is 1, y must be at least 1. The dyes are prepared by the usual coupling reaction using a mono- or dicyano-aniline as diazo component. The dyes give orange to red shades on polyester fibres and may be used together with reactive dyes to colour polyester/cotton mixed fabrics.
Patent GB-312722-A (GB)
Title: Improvements in or relating to the distillation of tar, oils and the like
IPC: C10C1/04
Filed: 1928-03-14
Abstract: 312,722. Davidson, W. B., Michie, A. C., and Muddiman, E. W. March 14, 1928. Addition to 255,919. Hydrocarbons, distilling.-In dehydrating and' distilling tars &c. as described in the parent Specification, the heavy oils which have already been dehydrated in the still a are pressed into an admixer b where they are freed from light hydrocarbons by treating them with steam from jets 17<a> while they trickle over trays 2, 3, 4 provided with bubbling hoods 12.
Patent GB-200871-A (GB)
Title: Improvements in portable electric lamps
IPC: F21V21/26
Filed: 1922-03-18
Abstract: 200,871. Levi, S. J., and Rottenburg, H. March 18, 1922. Stud-and-slot fastenings.-A spring-clip fastening for securely attaching lamps to furniture. shelves, and the like comprises a key-hole slot E which engages with the head H of a nail or screw and is secured in position by the jaw G of a spring-clip B actuated by a spring C working on a spindle D.