baber/WOPTO huggingface dataset:
Patent GB-1024719-A (GB)
Title: Production of phthalic anhydride
Inventor: BROWN DAVID
IPC: C07C51/31
Filed: 1964-10-29
Abstract: In a process for the production of phthalic anhydride by the catalytic vapour phase partial oxidation of a hydrocarbon, e.g. o-xylene, followed by selective condensation of phthalic anhydride, a portion of the reactor product gases, preferably at least 25%, is recycled so as to maintain the oxygen concentration in the feed to the reactor below 18 mol. per cent when blended with fresh air, the pressure in the reaction and separation systems is maintained above 2 atm. gauge, e.g. 5 to 50 atm. gauge, and the temperature in the step of separating phthalic anhydride is above the melting point of phthalic anhydride and above the dew point of water at the separation pressure, e.g. above 130 DEG  C. The anhydride is preferably separated prior to recycling the gases, which are preferably also cooled and dehumidified before recycling. The spent gas may be heated and then expanded to produce work, e.g. to compress feed and recycle gas.
Patent GB-1434422-A (GB)
Title: Culturing bacteria
IPC: C12M1/00
Filed: 1973-09-24
Abstract: 1434422 Conveyer system TANABE SEIYAKU CO Ltd 24 Sept 1973 [27 Sept 1972 (2)] 44644/73 Heading B7L [Also in Divisions B1 and C6] The cultivation of aerobic bacteria is carried out in test-tubes to which an oscillatory motion (shaking) is imparted by the stroke of a reciprocating bar. Referring to Figs. 4, 7 and 8, the test-tubes are subjected to oscillatory movement while being conveyed in an aseptic and temperature regulated chamber 40, Fig. 7. The test-tubes are mounted in pivoted holders 21, Fig. 4, on carrier 35 which are conveyed (anti-clockwise) along rails 39 defining an initial straight section 39-1 and three loops 39-4, 39-8 and 39-12; shunt sections 44 and 45 enable the first and second loops to be omitted. The carriers are urged forward by a series of drives 42 consisting essentially of rotating horizontal wheels 55 bearing indentations 55a, Fig. 8, for engaging the stud 54 on the yoke of each carrier. Fast transference of the carriers across the loops 39-6 and 39-10 is achieved by mechanism of conventional construction (Fig. 10, not shown). During their passage along the straight sections, the test-tubes are kept oscillating by repeated impacts from rods 34a mounted parallel to the rails. The rods are attached to connecting rods 63 which reciprocate (leftright) in bearing blocks 66. The rods in the final section 34c may be driven independently of the rest. Mechanism 46 to 49, Fig. 7, for removing and replacing caps on the test-tubes, for supplying dosages of inoculum, culture medium and sample solution to the test-tubes, and for holding the individual test-tubes steady at the end of the circuit during operation of a photo-electric colorimeter 50 are described in detail (Figs. 12, 13 and 14-15, not shown).
Patent GB-1011497-A (GB)
Title: Improvements in or relating to coating compositions
Inventor: HUITSON JOHN JACKSON
IPC: C09D4/06
Filed: 1963-11-13
Abstract: Organosol compositions comprise a vinyl chloride polymer, as sole polymerizable organic compound present in the composition an ester containing at least two ethenoid groups at least one of which is an allyl group and having a boiling point not less than 50 DEG  C., a non-polymerizable plasticizer, a volatile organic liquid, a chemical catalyst for the polymerization of esters of ethylenically unsaturated alcohols and a stabilizer which comprises barium (zinc octoate, cadmium laurate, cadmium/barium laurate or barium ricinoleate.  Specified esters are ethylene glycol bis-(allyl carbonate), triallyl phosphate, triallyl cyanurate, diallyl phthalate, allyl acrylate and the multiple ester derived from 3 moles of maleic acid, 2 moles of ethylene glycol and 2 miles of allyl alcohol.  Prepolymers of these esters may be used. The volatile liquid may be a hydrocarbon, ester or ketone.  The catalyst may be benzoyl peroxide or t.-butyl perbenzoate.  The compositions may be used for coating, e.g. metals, and the coatings cured by heating.  An example describes organosols comprising polyvinyl chloride, phthalate ester plasticizer, diallyl phthalate, titanium dioxide, t.-butyl perbenzoate, xylene, toluene and the specified stabilizers.ALSO:Metal substrates may be coated with organosol compositions comprising a vinyl chloride polymer, as sole polymerizable organic compound present in the composition an ester containing at least two ethenoid groups at least one of which is an allyl group and having a boiling point of not less than 50  DEG C., a non-polymerizable plasticizer, a volatile organic liquid, a chemical catalyst for the polymeriza-tion of esters of ethylenically unsaturated alcohols and a stabilizer which comprises barium/zinc octoate, cadmium laurate, cadmium/barium laurate or barium ricinoleate.  Specified esters are ethylene glycol bis(allyl carbonate), triallyl phosphate, triallyl cyanurate, diallyl phthalate, allyl acrylate and the multiple ester derived from 3 moles of maleic acid, 2 moles of ethylene glycol and 2 moles of allyl alcohol.  In an example mild steel is coated with compositions comprising polyvinyl chloride, phthalate ester plasticizer, diallyl phthalate, titanium dioxide, t.butyl perbenzoate, xylene toluene and the specified stabilizers, and the coatings cured by heating.
Patent GB-1033565-A (GB)
Title: Improvements relating to electrical pulse generating circuits
Inventor: SCOLES GRAHAM JOHN
IPC: H03K3/53
Filed: 1961-12-14
Abstract: 1,033,565. Pulse generating circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 6, 1962 [Dec. 14, 1961], No. 44857/61. Heading H3P. In a pulse generator the energy stored in an inductor L is used to charge a pulse forming network PFN via a diode D, the PFN being discharged via a load R by means of a thyratron or ignitron S. Valve V is made conductive during time T (Fig. 2) so that a current is built up in inductor L. At time A, valve V is cut off, by means not shown, so that the energy stored in inductor L charges the PFN via diode D. The PFN is discharged at time a by firing the thyratron or ignitron S so that a rectangular pulse is generated in load R. Valve V may be made conductive at this time or at a later time b. The amplitude of output pulse may be varied by controlling the duration of the conducting period of valve V. In the event of switching device S failing to de-ionize, the circuit may be shut down by cutting off valve V.
Patent GB-1132593-A (GB)
Title: Core structure
IPC: B29D24/00
Filed: 1965-10-26
Abstract: 1,132,593. Shaping sheet material. W. F. ROBB. 26 Oct., 1965, No. 45365/65. Heading B6J. [Also in Divisions B3, B5 and F4] A core structure, for use in e.g. a constructional panel or a heat exchanger, comprises a series of saddle shaped oppositely directed flattopped projections. In use the core is sandwiched between flat outer sheets. The core is drawn from a sheet of metal or plastics material by co-operating dies and carrying male pins which interleave when the dies are forwarded towards each other. The pins may alternatively be carried by drums or endless belts.
Patent GB-1413214-A (GB)
Title: Low-temperature coolant ducting
IPC: F16L59/12
Filed: 1973-09-27
Abstract: 1413214 Low-temperature coolant ducting SIEMENS AG 27 Sept 1973 [28 Sept 1972] 45386/73 Heading F2P [Also in Division H1] Low-temperature coolant ducting comprises a first tube 2 supported within a second tube 1 by filamentary members 61 which extend between the two tubes and each of which has a first point thereof connected to one of the tubes (2) and a second point thereof coupled to the other tube (1) in a manner permitting movement of that second point along said other tube by means of a bearing device 48 (49, 50) restricted to movement along a support track 4 (5, 6) extending along the other tube. The bearing devices are preferably roller devices operating in U-shape tracks each track being longitudinally slotted for the filaments 61 to pass through. The tube 2 may be provided with a thermal radiation reflector layer on its outer surface and a tubular thermal radiation shield may be provided between the first and second tubes. This shield may be formed of two half tubes 70, 71 suspended by elements 74, 75, 76 on the members 61. Some of the elements 74 are displaceable to permit relative movement between the shield and the tubes. Super-insulation 15 can be incorporated between the shield and the tube 1 and cooling tubes 31, 32 can be secured to the shield. The ducting is used for low-temperature cables carried in the tube 2 in a cooling medium such as helium, nitrogen or hydrogen. In a second embodiment of the ducting (Figs. 1 and 2, not shown) the radiation shield is a complete tube supported from the outer tube 1 and the support tracks 4, 5, 6, are mounted on the inside of the shield. In assembling the conduit the first tube 2 is brought into position within the second tube 1 by means of relative movement therebetween in the direction of their longitudinal axes the bearing devices 48, 49, 50 being successively mounted on the respective support tracks 4, 5, 6. A plurality of ducting sections can be connected end to end, each tube of each section being connected to the like tube of the or each adjacent section by means of an extensible device which allows for contraction of the sections when they are cooled.
Patent GB-951485-A (GB)
Title: Improvements in or relating to a method of manufacturing cigarettes
IPC: A24B5/16
Filed: 1961-12-20
Abstract: A method of treating tobacco comprises the steps of separating cut stems from cut tobacco, of flattening the cut stems, of cutting the flattened stems and of adding the cut flattened stems to the cut tobacco.  In one embodiment tobacco leaf is cut and fed to a cigarette making machine, the stem portions being winnowed off from the main stream.  The stems are conditioned to at least 13% by weight moisture content, rolled, reconditioned, recut and then added to the original cut tobacco leaf.  Tobacco dust may be added to the conditioned stems before rolling.  In a second embodiment tobacco leaf is cut and stem portions separated from lamina portions, the stem portions being moistened, rolled and cut, and then added to the lamina portions for feeding to a cigarette making machine.  In a third embodiment tobacco leaf is stripped, the stems rolled and cut and the lamina portions cut. The two portions are mixed together and then fed to a cigarette making machine where unsuitable tobacco is winnowed off, moistened and rolled.  The rolled winnowings are then fed back to the stripped lamina portions for further cutting. Specifications 934,816 and 937,228 are referred to.
Patent GB-1396673-A (GB)
Title: Stabilizing fet devices
IPC: H01L21/336
Filed: 1973-10-01
Abstract: 1396673 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 1 Oct 1973 [21 Nov 1972] 45759/73 Heading H1K The threshold voltage of a Si-gate IGFET having a silicon nitride-on-silicon oxide gate dielectric is stabilized by heating the device at 970-1150 C. in oxygen at a stage in its manufacture after formation of the nitride layer 10 and prior to formation of the Si-gate 16. The heating step causes the formation of a very thin layer 12 of Si x O y N z ; on the nitride layer 10. The p-channel Si device illustrated includes B- diffused source and drain regions 18, 19, a B- doped Si-gate 16, Al electrodes 20, 21 and a thick oxide layer 17 over the gate 16. The invention is equally applicable to an n-channel device. A silicon-nitride-oxide-silicon capacitor is also described in relation to tests of the efficacy of the invention.
Patent GB-1516207-A (GB)
Title: Method of and apparatus for conversion of a mass of non-gaseous fluid product to deep-frozen balls of small size
IPC: A23P1/02
Filed: 1975-11-06
Abstract: 1516207 Refrigerating J GUILLER 6 Nov 1975 [7 Nov 1974 13 March 1975 30 Sept 1975] 46096/75 Heading F4H A method of producing frozen balls of fruit comprises injecting the substance through nozzles 8 directly into a bath 10 of liquefied gas, thereby atomizing the product and forming the frozen balls, and removing the balls on a conveyer 13. The size of the balls are a function of the difference in the temperature of the product and the refrigerant liquid, and the injection pressure of the product. The apparatus also includes a crushing mill 2, a mixer 3, an injection pressure regulator 4 and a pressure control valve 5. Gaseous refrigerant in the chamber 6 passes to a condenser 12 and back into the bath 10 via a pump 11. The balls are taken from the bath to an outlet chamber 14 and dropped into a tank 15 via a vane-type pressure lock 18. The tank 15 is connected to a vacuum pump 16. More than one tank 15 may be provided. A second condenser 20 may be utilized. The chamber 6 may be operated under pressure.
Patent GB-1388225-A (GB)
Title: Die holder assemblies
IPC: B21J13/03
Filed: 1973-10-04
Abstract: 1388225 Forging dies ILLINOIS TOOL WORKS Inc 4 Oct 1973 [5 Oct 1972] 46340/73 Heading B3H  A die holder sub-assembly, particularly for a bolt pointing machine of the open-throat type, comprises a head 12 of intergral construction provided with telescopic guides 20, 22 in its lower portion and with a die cavity in its upper portion which provides a horizontal shelf 32 to support a die holder composed of a back element 42, side elements 44, 46 and a bottom element 48. The side elements 44, 46 are secured to the head by bolts 50 extending through the back element. The bottom element 48 is secured to the head by a bolt 52 whose head is received in a countersunk bore. The die 54 is fixed to its holder by a grub screw 56. The bottom element 48 of the die holder can be removed easily after the die 54 has been removed. The head 12 is fixed and co-operates with a movable head 14 with a similar die holder sub-assembly. If the die is of reduced thickness a filler block (60), Fig. 7 (not shown), is provided between the die (54b) and the back element (42).
Patent GB-1236884-A (GB)
Title: Single lever control units
Inventor: HOUK RICHARD DAVID
IPC: G05G1/00
Filed: 1969-09-22
Abstract: 1,236,884. Change speed control; hydrostatic transmission controls; link work. NORTH AMERICAN ROCKWELL CORP. 22 Sept., 1969 [13 Dec., 1968], No. 46546/69. Headings F2D and F2K. A control linkage for sequentially operating two cables 18, 19 from a single control lever 60 comprises a beam 20 pivoted at 26 to frame 11 and connected at 35 to the cable 18, and a rocker plate 55 fast with the lever 60 which initially pivots with the beam 20 and thereafter rocks relative to the beam to actuate the other control cable 19 which is connected to the plate 55. Pins 62, 63 fast with the plate 55 engage recesses 70L, 70R in the beam 20. A pin 71 fast with the rocker plate 55 carries a cam follower roller 83 engaging in a cam slot 88, 89, 90 in the frame 11. During initial movement of the lever 60 the pin 71 engages the straight portion 88 of the cam slot and thus prevents rocking motion of the plate 55 relative to the beam 20. The plate 55 and beam 20 therefore pivot together to actuate the cable 18. When the beam 20 has completed its pivoting movement and engages a stop 93, the pin 71 is aligned with one of the arcuate cam slots 89, 90 so that further movement of the lever 60 rocks the plate 55 about the pin 62 or 63 relative to the beam 20 to actuate the other control cable 19. During this rocking movement of the plate 55 the pin 71 slides in the cam slot 89 or 90. The control cable 18 may be connected to the beam 20 by any one of a number of spaced holes 32 which adjust the control movement imparted to the cable 18 by the pivoting movement of the beam. The control cables 18, 19 may control a forward-reverse gear and engine throttle; the pump and motor displacement of a hydrostatic transmission; or two valve spools of a change speed gear.
Patent GB-1089066-A (GB)
Title: A process for the manufacture of benzdiaz(1,4)epine derivatives
IPC: C07D243/20
Filed: 1965-11-06
Abstract: Compounds of the general formula <FORM:1089066/C2/1> (wherein R1 and R2 each represent a halogen atom or a CF3, CN or NO2 group, R3 represents a C1- 7 alkyl group and the broken lines denote optional substituents) are prepared by treating a compound of the formula <FORM:1089066/C2/2> (wherein X represents a carboxylic acyl, tosyl, mesyl or benzenesulphonyl group) with an oxidizing agent and hydrolysing the resulting compound of the formula <FORM:1089066/C2/3>
Patent GB-1468359-A (GB)
Title: Bifilar vibration dampers
IPC: B64C27/51
Filed: 1973-10-09
Abstract: 1468359 Helicopter rotors WESTLAND AIRCRAFT Ltd 7 Oct 1974 [9 Oct 1973] 47164/73 Heading B7W [Also in Division F2] In a bifilar vibration damper, Fig. 5, (i.e. a damper comprising an inertia mass 11 and a support 13, one of which is of U-shaped X- section and receives the other between its legs, interconnected by two pins 26 which extend through passages defined by apertures 27, 29 in the mass and the support, to permit the mass to move pendulously with respect to the support by rolling of the pins on arcuate portions of the apertures) the two pins 26 are located against endwise movement by end plates 18 closing the ends of the passages. The apertures 27, 29 may be circular, oval or arcuate slot (not shown) or D-shaped, the pins 26 contacting the arcuate portions of the "D's". Each end-plate 18 is oval and covers one end of both passages. Spacer members 20 help to locate the pins 26 whilst allowing their frictionless rotation. In Fig. 1, three such dampers are arranged symmetrically about a helicopter rotor system, the support arms 13 rotating with the rotor hub 22. Reference is made to Specifications 1,264,637 and 1,443,148.
Patent GB-1236617-A (GB)
Title: Method of testing vehicle shock absorbers
Inventor: KIEFER HEINZ
IPC: G01M17/04
Filed: 1968-10-07
Abstract: 1,236,617. Testing vehicle shock-absorbers. VEREINIGTE FLUGTECHNISCHE WERKE G.m.b.H. 7 Oct., 1968, No. 47507/68. Heading F2S. Apparatus for testing vehicle shock-absorbers in the installed condition has a plate 6, Fig. 1, which is carried by levers 7, 8; is supported by a spring 10; and is oscillated by means of an eccentrically mounted mass 12 being rotated by a motor 13, the latter being attached to the plate 6. A wheel 1 of a vehicle stands on the plate 6 and is connected, via a longitudinal control arm 2, to a superstructure 3 of the vehicle. The arm 2 has one end pivotally connected to the superstructure and has the other end attached to a spring 4. A shock-absorber 5, which is to be tested, is located parallel to the spring 4 and a measuring instrument 16 is connected to the arm 2, via a linkage 15 and a magnet 14. In use the amplitudes are indicated by means of a pointer 16a and a scale 16b. In another embodiment, a dashpot 105, Fig. 2, and a spring 104 are mounted between an axle 100 and a superstructure 103. A wheel 101 stands on a plate 106 which is connected by levers 107, 108 to a frame 117, and a spring 110 is positioned between an abutment 111 of the frame 117 and the lever 107. The latter carries an eccentrically mounted mass 112 and a motor 113. A measuring instrument 116 is mounted on the frame 117 and is connected, via a linkage 115 and a magnet 114, to the wheel 101.
Patent GB-1062190-A (GB)
Title: Hydroxy naphthoic acid derivative and its use in colour photography
IPC: G03C7/34
Filed: 1965-11-09
Abstract: The invention comprises the compound of the formula <FORM:1062190/C2/1> Such compound is prepared by reacting o-aminophenylacetonitrile with propionic anhydride and hydrogenating 1-hydroxy-2-naphthoic acid phenyl ester in admixture with the o-propionamidophenylacetonitrile in the presence of Raney nickel and separating the desired product.  The product is employed in a cyan colour forming developer (see Division G2).
Patent GB-1409356-A (GB)
Title: Electrolytic regeneration of active carbon particles
IPC: C02F1/467
Filed: 1973-10-12
Abstract: 1409356 Electrolytic regeneration of active carbon BATTELLE MEMORIAL INSTITUTE 12 Oct 1973 [12 Oct 1972] 47885/73 Heading C7B Active carbon particles contaminated with at least one oxidizable impurity are freed therefrom by circulating them, in an aqueous electrolyte suspension, so they repeatedly contact a fixed anodic current collector in an electrolytic cell, whereby anodically liberated atomic oxygen oxidizes the impurity. As described, the cell 1 may be divided by liquid permeable diaphragm 2 and a suspension of C particles in e.g. Na z SO 4  solution, is passed through the anode compartment 3. Baffle 17 causes turbulent flow to increase the collisions with the anodic collector 4. Pump 11 circulates the suspension and pipes 13 and 15 allow addition to or removal from the system. In examples, active carbon contaminated with phenol or organic matter from water is treated and the reactivated carbon is reused and reactivated cyclically.
Patent GB-1155736-A (GB)
Title: A Flash Cube Indexing System for a Camera
IPC: G03B15/04
Filed: 1966-10-27
Abstract: 1,155,736. Photographic flash apparatus. BALDA WERKE PHOTOGRAPHISCHE GERATE UND KUNSTSTOFF R. GR TER, K.G. Oct. 27, 1966 [Jan. 28, 1966], No.48272/66. Heading G2A. In a camera having a rotatably mounted flash cube socket (13, Fig. 1, not shown), a spring (11) is tensioned by the film transport mechanism, a slip clutch absorbing any motion in excess of that required to give the spring a predetermined stress, but iotation of the socket is prevented by a locking lever 21 engaging one of four cams 17-20 on the socket until a release button 29 is depressed. This pivots a rocker 28 so that a screw 34 thereon releases the lever 21, thus allowing the spring to iotate the socket. Movement of the rocker also brings a stop 32 into the plane of the cams 17-20, so the socket is stopped after a very short rotation. Release of the button 29 brings the lever 21 back into the path of the next cam, and removes the stop 32 from the path of cam 17, thus allowing the spring to complete the indexing through 90 degrees. Reference has been directed by the Comptroller to Specification 1, 034, 909.
Patent GB-1394770-A (GB)
Title: Piperidine derivatives and their use as polymer stabilizers
IPC: C08L101/00
Filed: 1973-10-17
Abstract: 1394770 Piperidine derivatives SANKYO CO Ltd 17 Oct 1973 [25 Oct 1972] 48373/73 Heading C2C [Also in Division C3] Novel compounds have the Formula I wherein R<SP>1</SP> represents a hydrogen atom, an alkyl group having from 1 to 4 carbon atoms (which may optionally be hydroxy-, C 1-4  alkoxy-, phenoxy-, C 2-18  aliphatic acyloxy-, C 7-11  aromatic acyloxy-, halo-, cyano-, epoxy-, C 2-5  alkoxycarbonyl-, or phenoxycarbonyl-substituted), an alkenyl group having 3 or 4 carbon atoms, an alkynyl group having 3 or 4 carbon atoms, a benzyl group, an aliphatic acyl group having from 2 to 4 carbon atoms, an alkoxycarbonyl group having from 2 to 9 carbon atoms, or a phenylalkoxycarbonyl group having from 1 to 4 carbon atoms in the alkoxy moiety; n = 1 or 2; and when n= 1: R<SP>2</SP> represents a hydrogen atom, an alkyl group having from 1 to 4 carbon atoms, a phenylalkyl group having from 1 to 4 carbon atoms in the alkyl moiety, or an aryl group (which may optionally be halo-, hydroxy-, nitro-, C 1-4  alkyl-, C 1-4  alkoxy-, or alkali metalsulpho-substituted); and R<SP>3</SP> represents an alkyl group having from 1 to 18 carbon atoms, a haloalkyl group having from 1 to 4 carbon atoms, an alkenyl group having from 2 to 4 carbon atoms, an alkynyl group having from 2 to 4 carbon atoms, a phenylalkyl group having from 1 to 4 carbon atoms in the alkyl moiety, a styryl group, an aryl group (which may optionally be halo-, hydroxy-, nitro, C 1-4  alkyl-, C 1-4  alkoxy-, or alkali metal-sulpho-substituted), or a heterocyclic group; or R<SP>2</SP> and R<SP>3</SP>, together with the carbon atom to which they are attached, represent a cycloalkylidene group having from 4 to 6 carbon atoms; or when n=2: R<SP>2</SP> represents a hydrogen atom; and R<SP>3</SP> represents a direct bond, an alkylene group having from 2 to 6 carbon atoms, or a phenylene group. The compounds of Formula I are obtained by condensing the corresponding 4-aminopiperdine with an aldehyde or ketone of formula The examples describe the preparation of many specific compounds of Formula I and their use as stabilizers for synthetic polymers.