baber/WOPTO huggingface dataset:
Patent GB-1162367-A (GB)
Title: Improvements in or relating to Microscopes
Inventor: HOWARD EDWARD CHARLES
IPC: G02B21/08
Filed: 1965-12-17
Abstract: 1,162,367. Microscope illumination apparatus. W. WATSON & SONS Ltd. Dec.14, 1966 [Dec.17, 1965], No. 53747/65. Heading G2J. Apparatus for illuminating an object for viewing by transmitted light in a microscope consists of light source 1, ground glass screen 2 having a convex lens surface 3 superposed, and a concave mirror 7 behind the source to reflect light on to a limited area of the screens, the use of the mirror being selectively controlled. A rod 9 may be rotated by knob 10 to bring an opaque mask 8 in front of mirror 7, or to swing the mirror itself away from the source, as in Fig. 2 (not shown). An apertured mask 11 may be swung beneath screen 2 when mask 8 is not in use. Sub-stage condenser lens assembly 4A, 4B produces an image 5 of screen 2 near to the plane of the object being viewed. A lens (13), Fig. 2, may be used to focus an image of an iris diaphragm (14) above surface (3) on to the plane (6) of the object.
Patent GB-1407857-A (GB)
Title: Pressure control device
IPC: F24F11/76
Filed: 1972-11-22
Abstract: 1407857 Controlling combustion air temperature FRAM CORP 22 Nov 1972 [22 Nov 1971] 54121/72 Heading F1B [Also in Division F2] In an I.C. engine air cleaner system having a valve 20 moved in response to vacuum in a chamber 24 to control the mixing ratio of hot and cold air streams delivered through inlets 16, 18, the degree of vacuum in chamber 24 is controlled by a device 10 (see Division F2) in accordance with the temperature of the air mixture, the device being arranged in line 28, 26 connected between the engine intake manifold and the chamber. The device 10 may be incorporated in the air cleaner system disclosed in Specification 1280206.
Patent GB-1165345-A (GB)
Title: Improvements in or relating to Multi-Stage Flash Evaporators
Inventor: STARMER ROY
IPC: C02F1/06
Filed: 1965-12-21
Abstract: 1,165,345. Evaporators, multi-stage flash tvpe; desalination of sea water. APPLIED RESEARCH & ENG. Ltd. and R. STARMER. 9 Dec.. 1966 [21 Dec., 1965], No. 54157165. Heading BIB. Sea water, or other brackish water, which is to be desalinated in a multi-stage flash evaporator 10, is first degassed by heating it and passing it through a degasser 19 before it is introduced into a stage of the evaporator, the degasser being maintained at a pressure which is lower than the pressure in that stage of the evaporator. As shown, the feed water is heated in the condenser tubes 21 of the last two flash stages 14, 15, and is then sprayed into degasser 19 which is maintained under reduced pressure by ejector 30. The output side of the ejector is connected to vent line 23 which leads from the last flash stage 15. The degassed water flows from the degasser into stage 15 where it mixes with the water which has passed through all the flash stages. The water mixture withdrawn from stage 15 by pump 13 is passed through condenser tubes 16; it is then further heated in heater 17, and introduced into the first flash stage. The makeup water is preferably treated, at point 24, with sulphuric acid to reduce the alkalinity below 30 ppm. when expressed as calcium carbonates. A condenser may be incorporated in the line 20 between the degasser and the ejector. Also described is an apparatus comprising a subsidiary degasser operating at atmospheric pressure.
Patent GB-1137289-A (GB)
Title: Preparation of organosilicon chlorides
IPC: C07F7/16
Filed: 1966-12-08
Abstract: 1,137,289. Allyl and methallyl-silicon chlorides. DOW CORNING CORP. 8 Dec., 1966 [29 Dec., 1965], No. 54989/66. Heading C3S. A process for preparing allyl or methallylsilicon chlorides, comprises contacting allyl chloride or methallyl chloride at substantially atmospheric pressure at a temperature of at least 150 C., with a slurry of silicon and phosphorus or metal catalyst in an inert diluent, the catalyst being present in at least 0À5 parts per 100 parts by weight of silicon. The metal catalyst is preferably copper but may also be nickel, cobalt, antimony, alone or in combination. The diluent is preferably mineral oil but hydrogenated terphenyl, paraffins, tar or hydrocarbon products, or fluorocarbons can be used. In the examples allyl chloride is converted into a mixture comprising allyltrichlorosilane and diallyldichlorosilane whilst methallyl chloride yields a mixture comprising methallyldichlorosilane, methallyltrichlorosilane and dimethallyldichlorosilane.
Patent GB-1277192-A (GB)
Title: Improvements in and relating to nitrocellulose base propellant compositions
IPC: C06B45/10
Filed: 1965-12-30
Abstract: 1277192 Propellant compositions C S CROSS (United States of America Secretary of The Army) 30 Dec 1965 55303/65 Heading C1D A propellant composition has as a binder a cured intimate mixture of nitrocellulose, hydroxyl-terminated polybutadiene, a plasticizer and a cross-linking agent, the weight ratio of hydroxyl-terminated polybutadiene to nitrocellulose being from 1 : 8 to 3:1. Crosslinking may be effected with toluene-2,4-diisocyanate or hexamethylene diisocyanate. The composition has improved low temperature properties and thermal stability and is made by mixing the specified components with an oxidizer and a fuel and curing, for example in a rocket motor case. Suitable plasticizers are nitroglycerine, hydroxyglycerol trinitrate, butane triol dinitrate, diethylene glycol dinitrate, triethylene glycol dinitrate, trimethylene glycol trinitrate, dibutyl phthalate, dimethyl sebacate, dibutyl succinate, dibutyl adipate, triacetin, ethyl diphenyl phosphate, tributyl phosphate, and tetrazole derivatives. Organic oxidizers specified are PETN, RDX, HMX and tetranitrobutanes, and inorganic oxidizers are ammonium perchlorate, ammonium nitrate, and alkali and alkaline earth metal chlorates, perchlorates, and nitrates. Powdered Al, Zr, Li, Mg, B, or their hydrides or alloys may serve as fuel. Other additives are iron powder, lead salicylate, lead oxide, lead chromate, and lead stearate as burning rate modifiers, symmetrical diethyl diphenyl urea, resorcinol, and 2-nitrodiphenylamine as stabilizers, and zinc oxide, carbon black, titanium dioxide, candelilla wax and sericite as pigments and fillers.
Patent GB-1285259-A (GB)
Title: High-temperature heat-transfer oils
IPC: C09K5/08
Filed: 1970-11-20
Abstract: 1285259 Heat-transfer oils; propyl naphthalenes KUREHA KAGAKU KOGYO KK 20 Nov 1970 [20 Nov 1969] 55364/70 Headings C4X and C5E In a heat-transfer process, the heat-transfer oil employed comprises at least 60% by wt. of one or more propyl naphthalenes, preferably of the specification:-B.Pt. 250-350‹ C.; solidification point - 70‹ to - 30‹ C.; av. mol. wt. 160 - 260; S.G.(d 4 <SP>15</SP>) 0À94-0À98; ignition pt. 110- 170‹ C.; viscosity 0À5-4À0 cp at 100‹ C. Monopropyl naphthalene alone or a mixture of mono-, di- and tripropyl naphthalenes may be used. The balance, if any, of the oil may be polycyclic aromatics and derivatives thereof. Examples 1 and 2 disclose the reaction of liquid propylene with naphthalene in the presence of a SiO 2 /Al 2 O 3  catalyst to produce a crude propylated naphthalene mixture, which is distilled under reduced pressure to a fraction comprising monopropyl naphthalene and minor amounts of di- and tripropyl naphthalene.
Patent GB-1490200-A (GB)
Title: Pyridine derivatives
IPC: C07C405/00
Filed: 1974-12-23
Abstract: 1490200 Pyridine derivatives UPJOHN CO 23 Dec 1974 [26 Dec 1973] 55418/75 Heading C2C The invention comprises pyridine derivatives of the Formula I and pharmaceutically acceptable acid addition salts thereof, wherein R 1  and R 2  each are H, halogen, C 1-6  hydrocarbyl, alkoxy, alkylthio, nitro, amino, alkylamino, dialkylamino, alkanoylamino or trihalomethyl; R 3  is H, C 1-4  alkyl, cycloalkyl, aryl optionally substituted by halogen, C 1-4  alkoxy, halo-C 1-4  alkyl or halo-C 1-4  alkoxy, or aralkyl; R 4  is H, Br, F, I, C 1-12  hydrocarbyl or halo-C 1-12  hydrocarbyl; R 5  is nitro, cyano, amino, alkanoylamino, alkylamino, dialkylamino, phenylazo, arylthio, aryloxy, alkylthio or a group R 4 ; R 6  is Cl, halosulphonyl or a group R 5  and n is 1 or 2; and pyridine derivatives of the Formula II and pharmaceutically acceptable acid addition salts thereof, wherein R 1 , R 2 , R 3 , R 4 , R 5  and n are as defined above, with the provisos (1) that when R 4  and R 5  are both H and R 6  is H, alkyl, amino or nitro, then at least one of R 1  and R 2  is halogen, phenyl, alkoxy, alkylthio, alkanoylamino or trihalomethyl, (2) that when R 4  and R 5  are simultaneously 3-OCH 3  and 5-OCH 3  then R 6  is not 4-C 1-4  alkyl; and (3) that not one of R 4 , R 5  and R 6  is 4-C 1-4  alkoxy. The compounds of Formula I above are prepared by oxidizing the corresponding compounds of Formula II which are obtained by acylating the appropriate aminomethylpyridines or (2-aminoethyl)pyridines with the corresponding benzoyl halides. Pyridine derivatives of the Formula IV in which R 3  is H are obtained by reducing the corresponding nitriles.  Pyridine derivatives of Formula IV above in which R 1  and R 2  are H, halogen, C 1-6  hydrocarbyl, alkoxy, alkylthio, nitro, amino, alkylamino, dialkylamino or halomethyl and R 3  is as defined above are prepared by reducing the appropriate pyridine carboxamides or pyridineacetamides. Pharmaceutical compositions, suitable for oral, parenteral, rectal or topical administration, contain the above pyridine derivatives or acid addition salts thereof in association with sterile liquid or solid carriers. The compounds increase the quantity of prostaglandins produced endogenously by mammals.
Patent GB-1459055-A (GB)
Title: Electrical control circuitry
IPC: F23N5/08
Filed: 1974-12-23
Abstract: 1459055 Burner control ELECTRONICS CORP OF AMERICA 23 Dec 1974 [11 Jan 1974] 55483/74 Heading F4T A burner control apparatus comprises a flame sensor 66 to produce a signal when a flame is present, lockout apparatus 42, 42-1, 42-2, for de-energizing the apparatus, a device 108, 108-1 for actuating fuel control means, a preignition timing interval circuit 144 and an ignition timing interval circuit 160 having a common capacitor 146 one of the timing intervals being a function of the charging of the capacitor and the other being a function of the discharging of the capacitor means 24 responsive to a request for burner operation to initiate an ignition sequence by actuating the timing circuit circuitry responsive to the actuated timing- circuit for energizing the control device at the end of the first timing interval, flame signal responsive circuitry 22 responsive to a signal from the flame sensor 66 to maintain the control device energized and means responsive to the end of the ignition timing interval to deenergize the control device and cause lockout apparatus 42, 42-1, 42-2, to lockout the burner control apparatus in the absence of the signal from the flame sensor. In operation, power is supplied through terminals 10, 12 to transformer 16 and thence to flame sensor 66. Call for burner switch 24 closes and the air flow from blower motor 28 is sensed to thus energize transformer 40 and a D.C. voltage appears at terminal 52 of full-wave rectifier 46. Capacitor 146 is uncharged and in the absence of a signal from circuit 22 transistors 98, 112 and 120 are non-conducting. Lockout switch actuator 42 is heated, pre-ignition delay capacitor 146 is charged to thus initiate charging of trial-forignition capacitor 162, and after a delay due to timing network 144, the ignition and pilot fuel are turned on 30, 32. A flame signal from circuitry 22 causes the ignition 32 to be turned-off and initiates main-fuel flow 34. If the flame signal is lost, contacts 110-2 are opened and the fuel supply is turned-off and contacts 108-1 are opened to prevent ignition or pilot-fuel flow. In a modification, the control circuitry between terminals 52, 54, Fig. 2 (not shown), is altered. In a further modification, terminals 300-, 302 are connected to a D.C. supply, which is energized in response to a call for burner, the onset of the ignition sequence being delayed by a switch 304.
Patent GB-1365719-A (GB)
Title: Testing underwater pipelines for leaks
IPC: G01M3/24
Filed: 1972-10-30
Abstract: 1365719 Detecting leaks in pipes BRITISH PETROLEUM CO Ltd 30 Oct 1972 [30 Nov 1971] 55554/71 Heading F2P [Also in Divisions G1 and H4]  A method of detecting a leak in an underwater pipe-line carrying liquid at a pressure greater than ambient comprises towing a sonic and/or ultrasonic detector along parallel to the pipe-line to detect the sound of a leak. A hydrophone sensitive to acoustic waves may be used and the pick-up amplified and presented as a visible or audible signal which may be recorded and charted.
Patent GB-1419283-A (GB)
Title: Wide band width vertically polazized omnidirectional aerial
IPC: H01Q13/10
Filed: 1973-11-30
Abstract: 1419283 Aerials MESSERSCHMITTBOLKOW-BLOHM GmbH 30 Nov 1973 [2 Dec 1972] 55711/73 Heading H4A A wide bandwidth vertically polarized omnidirectional aerial comprises a first conductive tubular element 12, Fig. 1a, in which is an annular group of slots 4 disposed around its periphery in a plane perpendicular to its axis. As shown, the slots are of uniform size and rectangular shape, but may alternatively be widened out from their centres, either uniformly or stepwise, or be of dumb-bell shape. Furthermore, the slots may have different lengths, in order to obtain a desired asymmetry in the radiation diagram. The element 12 is substantially #/2 wide (#=wavelength at the nominal operating frequency) and the annular group of slots divides it into two portions each #/4 wide. As shown, a co-liner array is formed by a number of elements 12, with narrow gaps 3 therebetween, but in another embodiment said gaps are bridged over, adjacent annular groups of slots then being #/2 apart (Fig. lb, not shown). Coaxially inside the tubular element (or elements) 12 are second and third conductive tubes 10 and 14, which together form a feed system for the aerial. Each slot is connected to said feed system by a symmetrical three-conductor arrangement 5, 8, 9, the outer conductors 8, 9 of which serve also to maintain the spacing between the tube 10 and the element 12. One end of the inner conductor 5 of each arrangement is connected to a lug 7 extending into the slot and its other end passes through an aperture in the tube 10 and is connected to the tube 14. Coaxial cables such as 15, 16 are contained in the tube 14 and are connected to it and to the tube 10 as shown in Fig. 2. Each cable is extended by means of a tube 20 and a rod 21, a transversely disposed hollow boss 20 of said tube passing through a bore in the tube 14 and being secured by a nut 24, whereby the two tubes are electrically connected. An internally threaded extension 26 from the rod 21 projecting into the hollow boss 20 is engaged by a bolt 31. A bush 28 has a flange 29 by means of which it is secured to the tube 10, through an aperture in which it passes. A portion 27 is of reduced diameter, and enters the hollow boss 20. The screw 31 is inserted through a central hole in the bush 28 and when tightened provides electrical connection between the tube 10 and the rod 21. An adjustable short-circuit plane is provided in the coaxial feed 20, 21 at a distance of about #/4 to facilitate matching. It is stated that the aerial is suitable for application to space vehicles.
Patent GB-1482086-A (GB)
Title: Crystal controlled oscillator arrangement
IPC: H03L7/16
Filed: 1973-12-03
Abstract: 1482086 Electronic timepieces STANDARD TELEPHONES & CABLES Ltd 28 Nov 1974 [3 Dec 1973] 55974/73 Heading G3T [Also in Division H3] An arrangement providing a low frequency output for use in timepiece oscillators &c. comprises two high frequency oscillators 1, 2 each including a thickness shear mode Piezo-electric vibrator 3, 4 and an arrangement 6 for deriving the difference frequency and a phase sensitive detector 7 for controlling the frequency f 2  of oscillator 2 such that the difference frequency is a sub-multiple of the oscillator 1 frequency f 1 . The controlled oscillator 2 may include a varactor 5 for effecting frequency control. The vibrators 3, 4 may be arranged on the same Piezo-electric substrate.
Patent GB-1105842-A (GB)
Title: Sports vehicle for sliding on snow and water
IPC: B63B35/81
Filed: 1966-12-14
Abstract: 1,105,842. Planing craft; sledges and sliding vehicles. DR. ING. H.C.F. PORSCHE KG. 14 Dec., 1966 [14 Jan., 1966], No. 55976/66. Headings B7A, B7B and B7S. A sports vehicle capable of sliding on snow and water, i.e. of being used as a toboggan and for water sport has a body 1 with an approximately trough-shaped bottom 2 and generally upright side walls 3, 4 having approximately horizontal rim portions 7, 8, and a seat 17 provided with outwardly directed flanges 19, 20 for securing it to the rim portions of the side walls. The body and seat are of synthetic plastics material and the seat may have a non- slip surface. Metal runners 15, 16 extend over longitudinal ribs 12, 13 formed on the bottom by extensions of the side walls 3, 4. A floor 27 is spaced from the bottom 2 by an inert 28 of foamed material. Handles 25, 26 are secured to the rim portions 7, 8.
Patent GB-1412439-A (GB)
Title: Hydrophilic polymers and devices made therefrom
IPC: G02B1/04
Filed: 1972-12-05
Abstract: 1412439 Production of hydrophilic polymers ERICKSON POLYMER CORP 5 Dec 1972 56123/72 Heading C3P [Also in Division G2] A hydrophilic polymer is prepared by (a) dissolving an organic water-soluble inert substance into a monomer for a hydrophilic polymer before polymerization, (b) bulk polymerizing said mixture and (c) exposing the resulting polymer to water, to remove at least a portion of said water-soluble inert substance and to simultaneously hydrate said polymer. The polymer is preferably a cross-linked copolymer derived from 10-95 wt. per cent of a hydroxy-alkyl acrylate or methacrylate, from 5-90 wt. per cent of a hydrophilic water insoluble monomer (e.g. methoxy ethyl methacrylate), up to 10 wt. per cent of a crosslinking agent (e.g. 1,5-divinyloxy-3-oxapentene or ethylene glycol dimethacrylate) and up to 40 wt. per cent of the water-soluble inert substance. Examples of water-soluble organic inert substances are polyoxyethylene-, polyoxypropylene- and polyoxybutylene-glycols; benzoic, toluic and naphthoic acids; esters and ethers of the above polyglycols; soaps and surfactants; polyvinyl pyrrolidone, polyvinyl caprolactam and polyvinyl piperidone; N-acetyl polyethylene imine; and poly-N-vinyl imidazole, poly-N-vinyl succinimide, and poly-N-vinyl glutaramide. The invention also comprises the polymer before treatment with water, and devices such as contact lenses made therefrom.
Patent GB-1187433-A (GB)
Title: Method of and Apparatus for Checking Labels
Inventor: HOFE GEORGE W VON
IPC: B31D1/02
Filed: 1967-01-26
Abstract: 1,187,433. Verifying labels. NEW JERSEY MACHINE CORP. 26 Jan., 1967 [28 Jan., 1966; 26 May, 1966], No. 56803/68. Divided out of 1,187,431. Heading B8F. The Specification describes a labelling machine having most of the features of the machine described in the parent Complete Specification. The claims relate to a label-checking machine, including means for detecting verifying marks on a label web being fed therethrough and for stopping the machine, or stopping the feed of the web, or operating a warning signal, or applying a distinguishing mark to a label if the marks sought are not found. The marks are of a material different from that used to print the label indicia. The detecting means is adapted to detect marks that are invisible under normal conditions and may, for example, comprise an ultra-violet light source, Fig. 5 (not shown), for causing a normally invisible luminescent mark to glow visibly, and a photo-tube arranged for detecting the visible glow.
Patent GB-1442225-A (GB)
Title: Servo motors
IPC: F15B15/10
Filed: 1973-12-11
Abstract: 1442225 Cutting apparatus FROST ENG DEVELOPMENT CORP 11 Dec 1973 [17 Jan 1973] 57272/73 Heading B4B [Also in Division F1] A device for severing a webbing strap 10, Fig. 1, comprises a flexible open-ended metal tube 34, Fig. 5, which is inflated by compressed gas or pyrotechnically so that as it expands a blade 60 is driven down to cut the strap. The blade is held retracted by a shear-pin 64. The ends of the tube are sealed by a blind end 32, Fig. 3, of the housing and a screwed plug 36. Slight leaks can be tolerated as inflation is rapid. Gas is admitted through a manifold 55, 56, Fig. 2. Fig. 7 shows an embodiment in which the tube 100 is of rectangular cross-section when inflated.
Patent GB-1199537-A (GB)
Title: Deep Water Operating and Servicing System for Operating and Servicing Marine Wells.
Inventor: BROWN WALTER
IPC: E21B43/013
Filed: 1968-12-03
Abstract: 1,199,537. Subaqueous wells; caissons. NORTH AMERICAN ROCKWELL CORP. 3 Dec., 1968 [1 April, 1968],. No. 57381/68. Headings E1F and E1H. A\well.. servicing system comprises ,an. under-: water operating and servicing module 16 adapted to be positioned in proximity to at least one underwater well 14 and coupling system 18 for coupling the well to the module for transfer of materials and/Or tools between the module and the well. The module houses the equipment necessary for automatic periodical well servicing, for separation -and flow control of petroleum products, and for providing life support. After the module is secured to base 10, submarine 100 connects guide lines 20 and 19 to guide pins 50 and 23 on the module and well. The well head having sleeves 47 sliding on the guide lines 19 and pins 23, and a connector 41 having sleeves 72 sliding on the guide lines 20 and pins 50 are then lowered. Hydraulic control pod 49, lowered down lines 19, is used to lock . the well head to valve assembly 26 and to. move hydraulic cylinder 62 downwardly on the tree extension .60 and thus, through links 63, to attach connector 41 to a connector on: the module. To compensate .for any misalignment. of the module with respect to. the Well the connector 41 is. flexibly mounted; on links 63 and a link 64, which is carried by sleeve,.61 rotatably mounted on tree extension. 60. Tubing ,44a,.44b connect connector 41 with Y spool 45 on the well head. Reference has been directed by the Comptrollerto Specification 1,149,933.