baber/WOPTO huggingface dataset:
Patent GB-1140845-A (GB)
Title: Corrosion-resistant coatings
Inventor: CHERRY BRIAN WILSON
IPC: B05D5/12
Filed: 1964-10-08
Abstract: 1,140,845. Protective coatings. NATIONAL RESEARCH DEVELOPMENT CORP. 7 Jan., 1966 [8 Oct., 1964], No. 41068/64. Heading B2K. A multi-layer protective film for metal surfaces comprises at least three layers of material each being resistant to the passage of ions of one polarity. The polarity to which each layer is resistant alternating from one layer to the next. The overall specific effective resistance (defined as R/dt, where R is the resistance of a sq. cm. area of a, layer, d the thickness thereof in cm. and t is the transport number of the ion). May be at least of the order of 10<SP>13</SP>. The layers may be alternately posiperm/negaperm/posiperm or negaperm/posiperm/negaperm and may be applied as varnishes by brushing or by controlled withdrawal from a bath of coating material. The posiperm layer may be varnish containing two parts tung oil and one part of p-tertbutyl alcohol/formaldehyde resin or an alkyd resin and the negaperm layer may be a polyamide cured epoxy varnish based on a condensation product of diphenylol propane and epichlorohydrin, molecular weight about 900, or a grade of thermoplastic resin formed by polymerising dilinoleic acid with ethylene diamine and having a molecular weight of about 590. A priming and an outer coat may be present if desired. The multi-layer film may be applied to or wrapped round a metal surface as a means of applying the protective layers. The metal may be steel and may be abraided and degreased with benzene before application of the layers.
Patent GB-906898-A (GB)
Title: Improvements in or relating to shelf supports
IPC: A47B57/52
Filed: 1960-11-30
Abstract: 906,898. Brackets. WEBER, A., [trading as WEBER & SOHN, ALBERT.]. Nov. 30, 1960 [Dec. 4, 1959], No. 41082/60. Class 52 [5). In a shelf support comprising a bracket arm adjustable in steps along an undercut slot 3 in an upright 1 and having a transverse lug 5a releasable from the slot by rotation through a quarter turn, the arm has a bracing portion 6 and interchangeable bearing members are provided for transmitting pressure from the bracing portion to the upright, at least one of the members angularly adjusting the arm in a vertical plane and another of the members clamping the arm to the upright. The arm has a telescopic extension 2 and a projection 7 engaging spaced apertures 4 in the upright and the bracing portion 6 has a tapped hole 8 for threaded engagement with a set-screw of the interchangeable members. In the member shown in Figs. 1 and 2, the setscrew 9 bears on a spacer 10 which is slotted to receive the part 6, has a projection 10b engaging the slot 3, and in which the screw 9 is captive but rotatable. Rotation of the screw by a screw-driver angularly adjusts the arm in a vertical plane, the arm being horizontal when the part 6 abuts the spacer. In a modification, allowing angular adjustment below the horizontal, the set-screw bears on the web of the upright. An interchangeable clamping member, shown in Fig. 7, comprises a set-screw 9b passing with clearance through the hole 8 and through a hole in a spacer 11 and screwed into an elongated clamping nut 12 which is rotated to engage behind the edges of the undercut slot the edges being clamped between the nut and the spacer on tightening the set-screw.
Patent GB-852451-A (GB)
Title: Tire bead and manufacture thereof
IPC: B60C15/06
Filed: 1958-12-23
Abstract: For improved bonding adhesion with metal surfaces, butyl rubber is compounded with 5% to 40% of a halosulphonated polymer of a C2-C5 olefine having a molecular weight of at least 1,000.  The olefine may be ethylene, propylene or isobutylene, and the halogen may be chlorine or bromine.  In an example 80 parts of butyl rubber are compounded with 20 parts of chlorosulphonated polyethylene having 29% Cl and 1,25% S, 75 parts of carbon black, 3 parts of mineral oil plasticizer, 1,0 part each of N-nitrosop-nitroso methyl aniline and stearic acid, 3 parts each of magnesium oxide and hydrogenated resin, 5 parts of zinc oxide, 3,5 parts of sulphur, 2 parts of tetramethyl thiuram disulphide and 1,5 parts of mercaptobenzothiazole. Specification 565,974 is referred to.
Patent GB-415287-A (GB)
Abstract: 415,287. Cranes. KAKASKA, H. W., 1223, Rawson Avenue, South Milwaukee, Wisconsin, U.S.A. Nov. 18, 1933, No. 32225. [Class 78 (iv).] A crane comprises a cab 55 on a turntable 56, and pairs of endless tracks 57, 58, connected with the cab by toggle links 59, 60, the tracks on each side being connected by a tie bar 1. A cable 8, fixed at its ends to parts of the toggles, passes over idler pulleys on the pivots 6, 7, of the toggles and also over pulleys 9, 10, one of which is reversibly driven to straighten or collapse the toggles so as to move the turntable to or from the ground. The lower edge 63 of the turntable is corrugated to grip the ground. The tracks 57, 58, are driven through shafts 62 with universal joints. U.S.A. Specification 1,914,920 is referred to.
Patent GB-985461-A (GB)
Title: Improvements in or relating to process for obtaining rigid cellular objects
IPC: C08G18/63
Filed: 1961-11-21
Abstract: A process for preparing rigid cross-linked infusible objects in materials containing a vinyl chloride polymer, comprising homo- or co-polymers of vinyl chloride or mixtures thereof and which are insoluble in solvents for polyvinyl chloride comprises the steps of mixing together said vinyl chloride polymer, a polyisocyanate, a gasification or blowing agent which decomposes on heating to produce a gas, at least one vinylidenic monomer, and an ethylenic anhydride capable of polymerizing with this monomer, heating the mixture in a mould to form an intermediate cellular object, cooling the mould under pressure, removing the intermediate cellular object from the mould and heating it in the presence of water or water vapour to increase both the size and the cell size thereof.  It is supposed that anhydride groups of the copolymer from maleic anhydride and vinylidenic monomer (which has been fixed by grafting on to the molecules of vinyl chloride polymer) are hydrolysed by reaction with the water or water vapour and the acid groups thus formed react with some of the polyisocyanate to link the different grafted polyvinyl chloride molecules.  In examples the ingredients are formed into a paste which is heated to 170 DEG  C. under pressure in a mould. After cooling, the intermediate cellular object is removed from the mould and placed in a humid enclosure at 100 DEG  C. to increase the size of the object and the cell size, until a stable volume is obtained. The ingredients used are polyvinyl chloride, toluene - 2,4 - diisocyanate, a ,a 1 - azo - bis - iso - butyronitrile, maleic anhydride and (9) and (17) acrylonitrile, (10) styrene, (11) vinyl acetate, (12) and (18) methyl methacrylate, (13) ethyl acrylate, (14) a mixture of vinyl-pyridine and butyl methacrylate. In comparison examples cellular products are obtained from (1) P.V.C., maleic anhydride and azobisisobutyronitrile; (2) polyvinyl chloride, toluene-2,4-diisocyanate, azobisisobutyronitrile and maleic anhydride; (3) to (8) polyvinyl chloride, phthalic anhydride, toluene diisocyanate and (3) acrylonitrile, (4) styrene, (5) vinyl acetate, (6) methyl methacrylate, (7) ethyl acrylate, (8) a mixture of vinylpyridine and butyl methacrylate. Other specified polyisocyanates are triphenylmethane triiso-cyanate and diphenyl methane diisocyanate. Alternative vinylidenic monomers are those which contain a CH2=C< or CF2=C< grouping.  Specified are butadiene, isoprene, dimethyl butadiene, chloroprene, 3-cyano-1,3-butadiene, piperylene, myrcene, vinylidene chloride, styrene, p-chlorostyrene, 3,5-dichlorostyrene, p-methoxystyrene, esters, nitriles and amides, e.g. octyl acrylate, lauryl methacrylate, methyl or chloracrylonitrile, dimethylacrylamide, vinylpyridine, vinyl benzoate, vinyl ketones, vinyl carbazole, ethylene, propylene, isobutylene, divinylbenzene, vinyl acetylene and vinyl ethinyl carbinol.  Specification 660,358 is referred to.
Patent GB-1060724-A (GB)
Title: Improvements relating to guided missile systems
IPC: F41G7/22
Filed: 1963-10-23
Abstract: 1,060,724. Guiding missiles by radiation MESSERSCHMITT A.G. Oct. 23, 1963 [Oct. 23, 1962], No. 41737/63. Heading H4D. [Also in Division F3] In a guided missile system the missile radiates a pencil beam of electromagnetic energy in the direction of its travel and the missile is commanded from the launching point (e.g. an aircraft) to hit a ground target. The beam may be modulated or unmodulated light. In the case of a surface-to-surface system the command guidance may be given via a trailing wire as an alternative to radio. If necessary the missile is stabilized in pitch and yaw. As an alternative to direct visual observation a laser beam is associated with a photo-electric scanning receiver. Millimetric radio waves may be utilized and a wider beam with the same axis as the pencil beam may be added.
Patent GB-1159966-A (GB)
Title: An a.c. Source for providing Phase Quadrature Outputs
Inventor: HAWKES HARRY DONALD
Filed: 1965-10-01
Abstract: 1,159,966. Testing transformers. ELLIOTT BROS. (LONDON) Ltd. July 22, 1966 [Oct.1, 1965], No.41850/65. Heading G1U. An arrangement providing two adjustable output currents in phase quadrature for use in a transformer testing arrangement consists of two calibrated resistive potential dividers 1, 2, either in parallel as shown or in series (Fig.1), tapped at their mid points, with two output circuits, one extending from the tapping point 1 to the wiper 6 and including resistor 7, the other extending from the tapping point 2 to the wiper 9 and including a capacitor 10. The output circuits are essentially resistive and capacitive respectively and carry currents which are small compared with the currents passed through the dividers. The arrangement is used in a transformer testing arrangement wherein the secondaries of test and reference transformers are connected in opposition to a winding of a toroidal core. The quadrature outputs of the calibrated source are also applied, and adjusted until zero output to a detector winding on the core is obtained, the adjustments representing the phase errors &c. of the transformer under test. The arrangement has the advantage that the wiper of each divider may be moved through the centre tapped position to obtain a phase shift of 180 degrees, so that four quadrant operation is possible.
Patent GB-1474978-A (GB)
Title: Temperature operated switches
IPC: H01H36/00
Filed: 1974-09-27
Abstract: 1474978 Curie point switches TOHOKU METAL INDUSTRIES Ltd 27 Sept 1974 [27 Sept 1973] 42146/74 Heading H1N A curie point switch 8 has a magnetic reed contact unit with a permanent magnet and a ferromagnetic body having a temperature related permeability adjacent or around the contact unit to provide a closed magnetic loop with the reeds and an auxilary permanent magnet 30 or 31 is rotatably mounted in the vicinity of the permanent magnet and ferromagnetic body so as to have a variable influence on the switch. A magnet similar to that of Fig. 2a may be of disc shape and have a screwdriver slot allowing for rotation in a switch casing (Fig. 5, not shown). The magnet 31 of Fig. 3 is rotatable about its longitudinal axis and two halves thereof on opposite sides of a plane passing through the axis are magnetized in opposite directions.
Patent GB-1204873-A (GB)
Title: Improvements in processes for recording, records of, and devices for the reproduction of moving objects
IPC: G03B15/08
Filed: 1967-09-19
Abstract: 1,204,873. Cinematography; holography. AGFA-GEVAERT A.G. Sept.19, 1967 [Sept.21 1966], No.42532/67. Headings G2C, G2E and G2J. [Also in Divisions G5 and H4] In a process for the recording and reproduction of moving pictures, holographic images of the pictures are recorded on a carrier 10, which may be a rotatable disc or a tape, the images comprising a series of very narrow transverse bands, such that when the carrier is moved continuously past a laser beam illumination and scanning device for reproduction of the moving pictures, no appreciable change in viewpoint is seen. The moving pictures are initially recorded on a conventional cine film 9 whose individual frames are then photographed on to discontinuously moving carrier 10 through a narrow slit in diaphragm 11 using a laser source and reference beam to provide a number of hologram bands for each frame. In an alternative form, film 9 is placed at the focus of a collimating lens such that carrier 10 receives only parallel light, and again no viewpoint change occurs on reproduction. By using different relationships between object and reference waves, multiple separate images may be recorded at the same location on the carrier. These multiple images may each comprise one of a sequence of cine frames, whereby each sequence may be reproduced by adjusting the position of the scanning device. Alternatively, these images may be the colour component images of a full-colour picture and may be reproduced using different wavelength optically superposed laser beams and scanning devices at the necessary inclination to the beam axis. Absorption or phase holograms may be recorded on a transparent carrier, or relief holograms may be formed on a reflective carrier comprising a silvered thermoplastics base. Sound may be recorded on the underside of the carrier as the multi-channel hologram of a laser amplitude which is modulated at the audio-frequency. The sound recording may be in the form of a conventional stylus groove when the picture holograms are in relief on a disc. The scanning device may comprise vidicon tube (19), Fig7 (not shown), of a television camera, the laser (18) and tube being traversed radially across the disc carrier (14) by means of a U-shaped bracket (17) powered by motor (16). The inclination (#) of the vidicon to the laser beam may be varied for each traverse. In place of the vidicon optical scanning means such as mirrors and prisms as fibre-optic elements may be used.
Patent GB-927123-A (GB)
Title: Limiting amplifier
IPC: H03G11/00
Filed: 1961-11-29
Abstract: 927,123. Transistor and valve limiting circuits. NATIONAL CASH REGISTER CO. Nov. 29, 1961 [Jan. 19, 1961], No. 42611/61. Class 40 (6). A one-stage limiting amplifier comprises an amplifying device having an input terminal, an output terminal and a common terminal wherein the common terminal is connected to a network whose impedance switches from a low to a high value when the current flowing therethrough to the amplifying device exceeds a predetermined value so that the gain of the amplifier decreases considerably in value as said predetermined current value is exceeded. In the circuit shown, resistance R3 is much smaller than either of resistors R4, R5 and capacitor C3 has a sufficiently large value to maintain point P effectively at earth potential to alternating currents so long as diode D is conducting. In the steady state the potential at the emitter of transistor Tr is slightly negative with respect to point P due to current flow in resistor R3. The application of a positive signal to the base of the transistor with an amplitude greater than the potential difference across resistor R3 will reduce this potential difference to zero so that emitter current will cease to flow and the transistor become cut off. A negative-going signal applied to the base electrode causes the current through resistor R3 to increase, thus diverting current through R5 from diode D through capacitor C3 and when this diverted current becomes equal to that originally flowing through the diode, the diode cuts off so that the parallel combination of resistors R4 and R5 become included in the emitter impedance and the gain of the amplifier is reduced to a very small value. It is stated that the resistor R3 may be omitted from the circuit, that a transistor in common-base configuration could be used or that the transistor could be replaced by a triode or pentode valve in a common-cathode configuration.
Patent GB-937168-A (GB)
Title: Steam temperature regulation in steam generators
IPC: F22B35/10
Filed: 1959-12-15
Abstract: 937,168. Fluid-pressure servomotor control systems. SULZER FRERES S.A. Dec. 15, 1959 [Dec. 23, 1958], No. 42637/59. Class 135. A steam generator plant comprises at least two heating stages in series, the temperature of the working medium downstream of the second stage being regulated by varying the rate at which water is supplied upstream of said stage, the first stage having a control loop in which the controller desired value is varied in accordance with the value of the manipulated variable of the second stage, viz.: the rate of water supply. As described, Figs. 1, 2a and 2b, the plant comprises a feed pump 2, a pre-heater 3, a feed valve 4, an economizer 6, an evaporator 7, a separator 9 and superheaters 11, 14 and 17. The steam temperature downstream of the superheater is detected by a device 18 to which actuates a P+I hydraulic servomotor control loop 101, 111, 116, 119, 124, 126 controlling a water injection control valve 32 in the line 66. This servomotor loop also receives a signal from a temperature detecting element 15 located downstream of the superheater 14. The signal from the temperature detecting element 15 is also transmitted to a P+I hydraulic servomotor control loop 101<SP>1</SP>, 151, 116<SP>1</SP>, 119<SP>1</SP>, 124<SP>1</SP>, 126<SP>1</SP> controlling the water injection control valve 40 in the line 68. This latter servomotor loop also receives a signal corresponding to the actual water flow in line 66 as measured by a flow meter 35, 137 and transmitted via valves 142, 147 and piston 152. The flow meter 35, 137 may be replaced by means for measuring the displacement of the valve 32 and the temperature detector 12 may be located down. stream of the water injection point of the pipe 68. The servomotor loop 101<SP>1</SP> ... 126<SP>1</SP> also receives a signal corresponding to the steam temperature as detected by a device 12 between the superheaters 11 and 14. A flow meter 50, 137<SP>1</SP> measures the flow in the line 68 and transmits a corresponding hydraulic signal via valves 142<SP>1</SP>, 147<SP>1</SP> and restriction 150 to a piston 152<SP>1</SP> which also receives a signal corresponding to the steam temperature as detected by a device 8 downstream of the evaporator 7. The piston 152<SP>1</SP> actuates a lever 116<SP>11</SP> of a servosystem 116<SP>11</SP>, 119<SP>11</SP>, 124<SP>11</SP>, 168 which transmits a signal to a P+I servomoter control loop 116<SP>111</SP>, 119<SP>111</SP> ,  124<SP>111</SP> ,  175 which controls the feed valve 4. This latter servomotor system also receives signals from the flow measuring device 10 upstream of the superheater 11 and from the flow measuring device 5 upstream of the economizer 6. In another example, the meter 50 is in a P+I control loop which control a valve in a draw-off pipe of the evaporator 7. The temperature detectors 12 and 15 may be associated with steam flow detectors.
Patent GB-1493802-A (GB)
Title: Building constructions
IPC: E04B1/348
Filed: 1974-12-13
Abstract: 1493802 Prefabricated room assemblies PORTAKABIN Ltd 13 Dec 1974 [13 Sept 1973] 43020/73 Heading E1A In a building assembly comprising two portable, prefabricated room units 10, 20 mounted on legs the units are coupled to-gether in side-by-side relationship by bridging means 14..19 allowing the units to relatively pivot about a horizontal axis. The bridging means may be in the form of an hook and eye arrangement, see Fig. 4 (not shown) and the space between the units may be closed strips, see Figs. 2 and 3 (not shown).
Patent GB-1081138-A (GB)
Title: Process for reforming hydrocarbons
Inventor: HEBDEN DENNIS
IPC: C01B3/38
Filed: 1964-10-23
Abstract: The subject-matter of this Specification is substantially the same as that described in Specification 1,063,464, but the claims differ, the reaction temperature being from 550 DEG  to 750 DEG  C., preferably less than 650 DEG  C.  The process may be carried out in the apparatus described in Specification 895,038, and two specific examples using as feedstock a light petroleum distillate and a light petroleum gas (mainly butane) are described.
Patent GB-1406296-A (GB)
Title: Method and apparatus for measuring optical irregularities in an article
IPC: G01N21/896
Filed: 1972-09-21
Abstract: 1406296 Investigating sheet material SAINTGOBAIN INDUSTRIES 21 Sept 1972 [24 Sept 1971] 43764/72 Heading G1A In a scanning apparatus for detecting optical irregularities in moving sheet material two slits 1, and 3 are twice as wide as the other and a lens 2, are arranged as shown so that when slit 1 is illuminated, a narrow beam of radiation impinges on the sheet material and is subsequently received by a differential photo-electrical cell 4 having two sensitive areas 5, 5a, the output signal of the differential photo-cell being a function of any displacement of the slit image (from AoBo to A<SP>1</SP> B<SP>1</SP>) due to any optical irregularities present The detector's output is fed to a recorder (35), Fig.6 (not shown) via a low pass filter, a high pass filter, a differentiator and a rectifier. A more detailed embodiment, Figs.6, 7, 8, 9, 10 and 11 (not shown), incorporating the above arrangement is disclosed. In another embodiment, Fig.4 (not shown) the slits &c. and the detector are on the same side of the sheet with a mirror on the other side so that the radiation beam passes through the sheet twice. In a modification of this, Fig.5 (not shown), without the mirror the detector is positioned to receive radiation reflected off the surface of the sheet facing the apparatus or the detector is positioned to receive radiation internally reflected off the "back" surface after radiation has entered the sheet.
Patent GB-1159255-A (GB)
Title: Phase Discriminator
IPC: H03K5/00
Filed: 1966-09-30
Abstract: 1,159,255. Automatic phase control systems; phase discriminators. INTERNATIONAL STANDARD ELECTRIC CORP. 30 Sept., 1966 [1 Oct., 1965], No. 43828/66. Heading H3A. In phase discriminator for an automatic phase control system, a square wave (a, Fig. 2, not shown) from, oscillator OSC is converted by bi-stable circuit CC, two gates pt1-2 and two inverters inv 1-2, into a positive and a negative train of pulses (ac and ac) of the same width and of half the repetition rate, which are fed respectively to gate pt4 and pt3. The reference waveform b is halved in frequency by bi-stable circuit cd and fed with positive polarity to gate pt4 and with negative polarity to gate pt3. The phase relationships are such that when the oscillator OSC is in phase, the reference pulses (d) fed to gates pt3 and pt4 do not overlap the inputs derived from the oscillator. If the oscillator phase advances (Fig. 3, not shown) the pulse inputs to gate pt4 overlap and produce positive output pulses of duration proportional to the phase error. Similarly a phase delay (Fig. 4, not shown) causes the inputs to gate pt3 to overlap and produce negative output pulses. The outputs of gates pt3-4 are integrated by capacitor cr and fed to a capacitance diode dc controlling the frequency of oscillator OSC. The gate pt3 may comprise an NPN transistor (tr2, Fig. 7, not shown), having its emitter connected to the collectors of two PNP transistors (tr1, tr3) controlled by the input signals. The other gate pt4c may comprise complementary transistors (tr4-6) feeding the common output capacitor cr.
Patent GB-1520215-A (GB)
Title: Dyestuffs of the naphthoylenebenzimidazole series
IPC: C08L101/00
Filed: 1976-10-22
Abstract: 1520215 Naphthoylene benzamidazole dyes PRODUITS CHIMIQUES UGINE KUHLMANN 22 Oct 1976 [23 Oct 1975] 43875/76 Heading C4P The invention comprises dyestuffs of the general formula wherin X is a straight or branched C 1 -C 4  aliphatic chain, the residues -NH-X-OH being in the 4,4<SP>1</SP>, 4,5<SP>1</SP> or 5,5<SP>1</SP> positions. X is preferably-C 2 C 4 - They are prepared by condensing one mole of 3,4,3<SP>1</SP>,4<SP>1</SP>-tetraminodiphenyl with at least two moles of a 4-halonaphthalic anhydride and reacting the dihalo compound obtained with at least two moles of an amino alcohol H 2 N-X-OH. The dyes colour polyamides and polyesters in red yellow shades.