baber/WOPTO huggingface dataset:
Patent GB-539080-A (GB)
Title: Improvements in the manufacture and production of diolefines
IPC: C07C1/24
Filed: 1940-04-19
Abstract: 539,080. Diolefines. I.G. FARBENINDUSTRIE AKT.-GES. April 19, 1940. No. 7076. Convention date, April 6, 1939. [Class 2 (iii)] [Also in Group III]  Diolefines are produced by passing aliphatic glycols having at least four carbon atoms such as 1-3 or 1-4 butylene glycol in the vapour phase over a dehydrating catalyst in the presence of a hydrocarbon or chlorinated hydrocarbon which is liquid at normal temperature and not decomposed under the reaction conditions. Suitable diluents are hexane and carbon tetrachloride. Suitable catalysts are acid phosphates. In an example, a mixture of aqueous 1-3 butylene glycol vapour and normal hexane is led at 250‹C. over sodium dihydrogen phosphate containing 2 per cent. of free phosphoric acid, the hexane being recycled. Specification 317,500, [Class 2 (iii)], is referred to. The Specification as open to inspection under Sect. 91 includes the use of other diluent vapours which are either not changed or are changed with the production of diolefine, for instance tetrahydrofurane may be used as diluent, or 1-4 butylene glycol which is partly converted into tetrahydrofurane during the reaction, and includes examples in which (2) a mixture of 1-3 and 1-4 butylene glycols is used ; (3) 1-4 butylene glycol and steam are used, the tetrahydrofurane produced, being separated from the reaction products and returned to the reaction mixture ; (4) aqueous 1-3 butylene glycol vapour and benzene are led over a catalyst prepared by mixing sodium dihydrogen phosphate, water, n-butylamine phosphate and graphite, evaporating and heating the residue to 160‹C. This subject-matter does not appear in the Specification as accepted.
Patent GB-983096-A (GB)
Title: Improvements in or relating to servo-systems
IPC: G05D1/08
Filed: 1961-02-27
Abstract: 983,096. Automatic control. HONEYWELL Inc. Feb. 27,1961 [March 1, 1960], No. 7099/61. Heading G3R. In a servomotor control system the difference between a control signal and a feedback signal controls the servomotor through an amplifier the gain of which is automatically reduced by means directly responsive to unstable oscillations of the servomotor output. In Fig. 2 a signal from a roll attitude sensor 25 and/or a signal # c  from a manual controller and/or a heading controller (not shown) are applied to a diode limiter and a lag device 23 acting as a model of the desired roll rate response of an aircraft. The output of model 23 is compared with an actual roll rate signal from a gyro 10 and any difference applied through an RC lead network 50, amplifier 53, proportional plus integral network 55, and lead network 56 to control a pair of servomotor-operated actuators for ailerons # a . A signal dependent on the amplitude of oscillation of the servomotors at a predetermined frequency when the response is near that of model 23, is derived by a filter 58, rectified at 59, and compared with a desired amplitude selected by a signal generator 61. Any difference is applied through a lag unit 63, proportional plus integral device 64, and an amplifier 65 to control the gain of amplifier 53 so that it is maintained at the highest stable value under all flight conditions. The signal dependent on oscillation amplitude deviation is also applied through a lag unit to control the gain of an amplifier associated with a system for controlling the rudder # r  by suitably modified signals from a yaw rate gyro 40 and a lateral accelerometer 47. Feedbacks through lag and rate networks to produce overall lead and integral effects are referred to. Circuit details of amplifiers 53 and 65 which include diode modulators and demodulators, transistor and magnetic amplifiers, and variable gain and limiting diode circuits are described. Specification 932,599 is referred to.
Patent GB-1005656-A (GB)
Title: Improvements in or relating to dispensing containers
Inventor: DAVIS EUGENE EDWARD
IPC: B65D83/04
Filed: 1963-02-21
Abstract: 1,005,656. Dispensing containers. METAL BOX CO. Ltd. Dec. 19, 1963 [Feb. 21, 1963], No. 7108/63. Heading B8P. [Also in Division F2] A container for dispensing one pill at a time, moulded of polystyrene, has a dispensing opening closed by a rotatable member of acetal resin having a pocket to accommodate a pill, a  spring being provided inside the box to urge the member to its closed position. In one form, an involute spring 23 has one end secured to the dispensing member and the other end cooperating with a stop 9. The spring may be moulded into a wall 22 of the dispensing member or may be moulded of the same material as the dispensing member. In a second form (Fig. 6, not shown) the spring may be a leaf spring moulded into the dispensing member or moulded of the same material as the dispensing member, and integral therewith.
Patent GB-903830-A (GB)
Title: Improvements relating to lifting jacks
Inventor: WILLETTS CYRIL MALCOLM
IPC: B66F1/06
Filed: 1960-03-01
Abstract: 903,830. Lifting-jacks. SIMON-CARVES Ltd. Feb. 28, 1961 [March 5, 1960], No. 7144/60. Class 78 (3). In a pawl-and-ratchet lifting-jack, the hollow pillar 10 of light metal alloy has an opening 19 through which a lifting platform 18, secured to the rack bar 16, projects and around which is provided a removable #-shaped channelsection protector member 29 to act as a bearing- surface for the rack bar 16 and to shield the side of the pillar from blows as loads are placed on the platform. The rack bar 16 is also provided with a load-engaging head 17 and is raised by spring-urged pawls 23, 24 pivoted to a handle socket 25.
Patent GB-1448331-A (GB)
Title: Curabel coating compositions
IPC: B82Y40/00
Filed: 1974-02-18
Abstract: 1448331 Modified polymers; coating compositions TOYO INK MFG CO Ltd and NIPPON OIL CO Ltd 18 Feb 1974 [16 Feb 1973] 7217/74 Heading C3P Dicyclopentadiene/allyl alcohol copolymers are modified by reaction with acrylic or methacrylic acid, and the resins thus obtained used in coating compositions, especially printing inks, which are curable by heat and/or radiation. Preferably such compositions also contain a monomer polymerizable with the resin, e.g. ethylene glycol diacrylate, trimethylolpropane triacrylate and pentaerythritol tetraacrylate.
Patent GB-273213-A (GB)
Title: Improvements in or relating to heaters or coolers
IPC: F28D7/16
Filed: 1927-03-15
Abstract: 273,213. White, A. E., (Andale Engineering Co.). March 15, 1927. Headers; straight tubes between headers. - A casing 2 enclosing a number of tubes 1 joining headers 7, 15, is provided with ducts 19, 20 for one medium, parallel with the casing, so that on fixing a cover 15, the U-shaped conduits 21 connect the ducts with the two groups of tubes 1. A vent 27 is left between the joints around each duct and that around the casing 2.
Patent GB-704258-A (GB)
Title: Washer strip and method and apparatus for producing same
Inventor: POUPITCH OUGLJESA JULES
IPC: B21D53/20
Filed: 1951-03-28
Abstract: 704,258. Making washers. ILLINOIS TOOL WORKS. March 28, 1951, No. 7224/51. Classes 83 (2) and 83 (4). [Also in Groups XXV] Punching; twisting; embossing.-Toothed lock washers are made in strip form the washers being in a single row connected to plain marginal bands by tabs that permit easy separation. A single band may be used but preferably there is a band on each side. Such a washer strip may be wound into a coil, after tempering, for use in a subsequent machine such as a screw and washer assembly machine. To produce the strip of washers 26, Fig. 6, having inturned teeth 24, a strip 2, Fig. 1, is fed to a die set in which a punch and die 6 remove the interior of the washer, opposed dies 12, 34 impart the twist to the teeth, a combined punch and hold-down 8 blank out the space between adjacent washers leaving connecting tabs 64 with marginal bands 68, and a punch 10 with an annular edge 98 and pilot 94 forms indentations 100 to facilitate separation of the washers. The sides of the punch 8 have grooves in which cylindrical holddowns 74 slide, being retained in holes in the cylindrical head 36 of the punch 8 and maintained initially by springs 84 in advance of the cutting punch. The hold-downs are fitted with pilots 88. The indenting punch also yields, sliding in its holder as opposed by a backing spring 108. Additional locating pilots 14, 16, 18 are provided. The die set to produce strips of washers with internal teeth 238 indented between the teeth and the tabs 256, Fig. 13, is also illustrated and described. At the first step the central hole in the washer is punched. The punch corresponding to the punch 8 is grooved to form the free teeth on the washer. The twisting-dies follow this punch instead of being located in advance thereof, and the indenting punch is as before. Specifications 648,267 and 649,529 are referred to.
Patent GB-697126-A (GB)
Title: Improvements in or relating to high temperature insulating refractories
IPC: C04B28/26
Filed: 1951-03-28
Abstract: Hollow pellets of alumina, mullite, kyanite, forsterite, clay or kaolin are formed by coating a combustible core e.g. dextrose, starch, resins or lignone with the appropriate finely divided material and firing and sintering (see Group V).ALSO:Hollow refractory pellets of wall thickness between 5 and 30 thousandths of an inch and of a size passing through a screen of 5 mesh U.S. standard are prepared by coating globules of combustible material with finely divided refractory material, forming a shell thereon, firing the globule to burn out the combustible material and to sinter the refractory material.  Preferred refractory materials are mullite, kyanite, alumina, forsterite, clay, kaolin grog or clay grog.  The combustible material may be a "filled" Lignore solution, i.e. dry Lignore incorporated in a concentrated solution thereof, dextrose, starch or resins, and finely divided combustibles may be added to such solutions, e.g. wood flour, nut shells, sugar cane or pith.  A cellular insulating body may be produced from the globules or the pellets.  When using globules they are moulded and then fired.  When pellets are used they are mixed with a binder, e.g. refractory clay plus sodium silicate or a calcium aluminate cement, moulded, and the shaped body refired, if required.  A bond for the pellets may be of the same material as the pellets themselves.
Patent GB-1451143-A (GB)
Title: Rack and pinion steering gear
IPC: F16H19/04
Filed: 1974-02-18
Abstract: 1451143 Toothed gearing ZAHNRADFABRIK FRIEDRICHSHAFEN AG 18 Feb 1974 [17 Jan 1974] 7312/74 Heading F2Q In a rack and pinion steering gear in which the rack 3 is guided and supported by a pressure element 4 mounted resiliently in a casing 1, the pressure element 4 has a lining 8 of plastics material, which may be polytetrafluoroethylene reinforced with glass fibres, the lining 8 being received in a frame 7. The lining 8 may be held to the pressure element 4 by a notched nail 9 or by a holding pin formed integrally therewith.
Patent GB-775016-A (GB)
Title: Improvements in or relating to ironing boards
IPC: D06F81/06
Filed: 1954-03-15
Abstract: 775,016. Ironing boards. MOORE, F. T. D. Jan. 5, 1955 [March 15, 1954], No. 7401/54. Class 138 (2). [Also in Group XIV] In an ironing board in which the ironing surface is foldable, the thickness of the usual padding 2 is accommodated by the use of a three-part hinge 15.
Patent GB-582989-A (GB)
Title: Clothes peg
IPC: D06F55/00
Filed: 1944-04-24
Abstract: 582,989. Clothes pegs. COOK, T. April 24, 1944, No. 7537. [Class 44] A clothes peg comprises jaws 6, 15 to engage an article of clothing and a hook 7 having a slot 20 to engage the clothes-line, the jaw 6 forming a part of the main body 5 to which the jaw 15 is hinged at 11. The jaws are closed about the clothing by urging a collar 14, encircling the jaws, down the tapered outer surfaces of the jaws. Shoulders 13, 19 prevent the collar sliding off the jaws. Interfitting tongue 17 and recess 12 enable the jaws to grip the clothing positively. The hook 7 carries a locking pin 23 arranged to cause the peg to bind on the line when urged sidewise to a non-perpendicular position with respect, to the line. The pin 23 is a snug fit and is slidable in a hole in the hook.
Patent GB-645085-A (GB)
Title: Improvements in or relating to a brush lifting mechanism
IPC: H02K23/66
Filed: 1948-03-12
Abstract: 645,085. Brush-gear for dynamo-electric machines. LELAND ELECTRIC CO. March 12, 1948, No. 7577. Convention date, Oct. 1, 1947. [Class 35] In a brush-lifting mechanism for a commutator motor, the brushes are carried on pivoted arms moved into or out of engagement with the commutator by over-centre springs, the ends of which are attached to a member guided by the pivot-pin and moving radially under the influence of the motor speed. Mounted around the shaft 11 are a series of centrifugal weights 12 which move outwardly against a band-spring 15 to short-circuit the commutator 13 at the desired speed. In the rest position, Fig. 4, the band-spring interlocks with a shoulder on a retaining-plate 18. A series of hinged weights 16 are connected to the short-circuiting weights 12 so as to move radially with them. Flanges 17 on weights 16 are arranged to form a substantially continuous annular flange engaging a slot 47 in an adjustable insulating member 46 connected to the brush-lifting mechanism. The brush supporting arms 25 are both pivoted on a stud 22 and each one is in the form of a bell-crank having a lever 32 on the opposite side of the stud, on which the over-centre spring 50 acts to raise or lower the brush with a snap-action under the influence of a link 40. The motion of the arms is limited by pins 35 engaging holes 36 in the arms. The link 40 slides vertically on the stud 22 and is pivoted at 42 to a lever 44 pivoted at 45 and carrying the insulating operating arm 46 which is moved by the weights 16.
Patent GB-1293226-A (GB)
Title: A fusible pattern mixture for use in an investment casting process
Inventor: WILLIAMS LAWRENCE FREDERICK
IPC: B22C7/02
Filed: 1970-02-17
Abstract: 1293226 Investment casting ROLLS ROYCE Ltd 19 April 1971 [17 Feb 1970] 7583/70 Heading B5A [Also in Divisions C3 and C5] An investment casting process for producing a ceramic casting mould comprises forming a pattern from a fusible pattern mixture comprising a fusible wax material and carbon fibres, investing the pattern with a ceramic slip to form a self-supporting coating, melting out the pattern from the coating to leave a ceramic casting mould, and firing the mould, the firing being such as to burn any remaining fibres with negligible residue. The moulds are de-waxed by high pressure steam in an autoclave, and fired for 1 hour at 1000‹ C. in an oxidizing atmosphere. The term "fusible wax material" includes waxes, stearine, fatty acids, pitch, asphaltum, natural resins and gums, and coumarone-indene resin.
Patent GB-526204-A (GB)
Title: Improvements in or relating to electrical control systems
IPC: G05F1/147
Filed: 1939-03-10
Abstract: 526,204. Control systems for lamps &c. IGRANIC ELECTRIC CO., Ltd. March 10, 1939, No. 7799. Convention date, June 22, 1938. [Class 38 (iv)] A voltage adjusting arrangement for an electric circuit such as a theatre lamp circuit comprises a potentiometer type of impedance such as an auto-transformer 2, Fig. 1, which may be adjusted by a reversible electric motor M under the control of an adjustable voltage such as that corresponding to the setting of a potentiometer impedance 3. The motor drives the auto-transformer contact 2a and a contact 5a on a balancing impedance 5 the voltage thereof being applied with that of the controlling contact 3a to a balanced relay 6 determining the direction of movement of the motor. A further potentiometer. impedance may be adjusted to preset the voltage to be applied to the load circuit 1 when a switch 8 is thrown to its lower contact. The use of an auto-transformer allows the illumination from a lamp circuit to correspond with the setting of the control element. Fig. 2 shows a theatre dimming system for two lighting circuits with presetting auto-transformers 15, 16, 17, 20 for example controlling a balanced relay 19 adapted to selectively energize contactors 32, 33 in the reversing circuits of a motor M which has a brake B to prevent hunting and drives the contact arms of balancing potentiometer 18 and auto-transformer 12. A fading auto-transformer 20 is operable to transfer control gradually from one preset potentiometer to the other. Both circuits may be controlled proportionately by scene and grand master auto-transformers 28, 29 which are arranged to be cascaded with each other and with the potentiometers 15 ... 17. The circuits of the auto-transformers 12 are opened by switches 25 when the former are in minimum voltage positions and when colourmaster and continuity switches 22, 23 are open ; a switch 41 is opened by the arm 12a in the former case. To compensate for pressure drop in lighting circuits auto-transformers such as 13a, with additional turns in series with the lamps may be used. Specification 412,727 is referred to.
Patent GB-503751-A (GB)
Title: Improvements in or relating to optical units
IPC: G11B7/00
Filed: 1937-10-07
Abstract: 503,751. Optical systems. KODAK, Ltd. Oct. 7, 1937, No. 7818/39. Convention date, Oct. 7, 1936. Divided out of 503,673. [Class 97 (i)] Relates to toric lenses for converting a straight line light source 22, Fig. 1, into a curved image 23, intended especially to be in the curved field of an objective 25 adapted to form a straight line image 26 for sound recording and'reproducing as described in Specification 503,673. According to the invention, the minor curvature of the toric lens 21, which may be positive or negative is varied along the meridian of the major curvature, as shown in Figs. 5 to 6c to enable the intensity distribution to be evened out along the curved image 23.
Patent GB-937820-A (GB)
Title: An arrangement of a plurality of layers of flexible long bodies, for example electric cables, for connection between relatively movable bodies, laid in a flexible supporting means
IPC: H02G11/00
Filed: 1961-03-03
Abstract: 937,820. Laying cables. TELEFONAKTIEBOLAGET L. M. ERICSSON. March 3. 1961 [March 3, 1960], No. 7945/61. Class 36. [Also in Group XXX] In a method of laying multiple layers 2, 3, 4, Fig. 1, of electric cables in a protective flexible link chain 1 in which the layers are necessarily disposed away from the neutral axis of curved portions of the chain, spacers 8, 9 are placed between the layers during laying and are subsequently removed to allow space for the layers to move radially during flexing. Flexible protecting strips 5, 6, 7 of metal, fibre, or plastic may be permanently disposed between the layers or over the outermost layers.
Patent GB-1363395-A (GB)
Title: Internal combustion engine fuel injector
IPC: F02M61/14
Filed: 1973-02-19
Abstract: 1363395 Fuel injectors FORD MOTOR CO Ltd 19 Feb 1973 7963/73 Heading F1B [Also in Division B3] In a fuel injector, in which a nozzle head 14, Fig.1 and a fuel inlet 12 are connected to the ends of an elongated body, the body is formed by an outer sleeve and an inner sleeve which fits closely within and is fixed to the outer sleeve and a groove 16 in the outer surface of the inner sleeve forms a fuel passage connecting the fuel inlet to the nozzle head, the outer sleeve and the inner sleeve being fixed together by copper brazing. Each sleeve has a parallel widest section above two shallow tapered sections separated by a steeper tapered section. The inner sleeve parallel section is pressfitted into the outer section.
Patent GB-566884-A (GB)
Title: Improvements in the catalytic conversion of hydrocarbons at elevated temperature
IPC: C10G59/02
Filed: 1942-06-11
Abstract: <PICT:0566884/IV/1> Gasoline of high aromatic content is obtained by contacting naphtha or kerosene with catalysts comprising alumina and an oxide or sulphide of the IV, V or VIII Groups at 850-1050 DEG  F. and under pressures from atmospheric to 750 lbs. in presence of hydrogen, but under conditions in which no hydrogen is absorbed, fractionating the conversion products to separate a gasoline fraction from those of higher boiling range and subjecting the latter to catalytic conversion in presence of a natural, synthetic or activated clay or silica gel mixed with magnesia or alumina at 750-950 DEG  F. and under pressure from atmospheric to 150 lbs. per sq. in., fractionating the conversion products to separate a gasoline fraction which is mixed with the gasoline obtained in the first stage. Naphtha from tank 1 mixed with hydrogen from tank 6 is heated to reaction temperature in coil 5 and passed into reactor 11 filled with catalyst at a rate between 0.3 and 3.0 volumes of liquid per volume catalyst per hour; 1000-5000 cubic ft. of gas containing 30-90 vol. per cent free hydrogen are passed per barrel of oil.  The catalyst comprises alumina containing 1-20 per cent of the oxides of molybdenum, chromium, tungsten, vanadium, cobalt or nickel.  The conversion products pass through condenser 14 to separator 15 where gases are separated and recycled through line 16.  The liquid products are fractionated in tower 20 into gases removed through line 21, a gasoline fraction withdrawn through line 22 and a higher boiling fraction comprising the entire fraction or a part thereof collected on plate 27.  This heavy fraction is then heated to 750-950 DEG  F. in coil 32 and subjected to catalytic cracking in reactor 35 filled with natural or synthetic clays.  The products pass to cooler 37 and separator 38 from which gasoline fractions are fed through line 40 to mix with the reformed gasoline fraction passing to tower 20.  Specifications 541,067, 542,925, 543,968 and 554,095 are referred to.
Patent GB-1212717-A (GB)
Title: Brake actuating mechanism
Inventor: GUMMER ALLEN LEONARD
IPC: B60T17/08
Filed: 1968-02-19
Abstract: 1,212,717. Brake actuators. MGM BRAKES Inc. 19 Feb., 1968, No. 8016/68. Heading F2F. A brake actuating rod 20, Fig. 1, is movable to operate a brake by one or both of two mechanisms, the first comprising a member 32 moved (e.g. by pressure at 80) against a spring 38, and the second comprising a rod 48 moved by a spring 56 and arranged to push the actuating rod 20 through a greater distance than it is moved by the first mechanism. The member 32 is moved by pressure on a diaphragm 18 for service braking, and has a recessed portion 36 through which a threaded end 22 of the actuating rod 20 passes and is held captive by a flanged nut 26 and a flange 24 on the rod. The member 32 bears on the flange 24 during service braking and ultimately bears against the bottom of the chamber 14 or against a plate 14a therein. The spring 56 is held compressed by fluid pressure from 78, on a piston 40, and applies emergency braking, when this pressure drops, by means of an adjustable screw 70 which bears on the rod 48 which in turn bears on the diaphragm 18. The flange 30 of the nut 26 is thereby depressed against the member 32 and provides, when the member 32 is bottomed at 14a, an extra travel of the actuating rod by an amount equal to the depth of the recess 36.
Patent GB-272145-A (GB)
Title: Improvements in and relating to wheel dogs for use with lifting jacks
IPC: B61K7/20
Filed: 1927-03-23
Abstract: 272,145. Stockwell, B. March 23, 1927. Jacks. - A gripping device for holding the wheel of a railway &c. vehicle against the rail while the frame is being raised by a jack for rebushing &c. comprises a baseplate 1 on which the jack J is supported and provided with an upright socket 2 fitted with a slidable ratchet bar 5 having an arm 6 for engaging the rim of the wheel W. A weighted arm 9 is pivoted in lugs at the top of the socket so as to bear against the side of the socket and has a tooth 8 engaging the teeth of the ratchet bar. The arm of the ratchet bar is adjusted to grip the wheel rim and is then held in position against the lifting effect of the jack by the toothed arm.