baber/WOPTO huggingface dataset:
Patent GB-577273-A (GB)
Title: Improvements in or relating to mechanism
IPC: F42B19/46
Filed: 1931-12-31
Abstract: 577,273. Torpedoes. MACKIE, G. M. Dec. 31, 1931, No. 36111. [Class 9 (ii)] [Also in Group XXV] The externally-operated lever 1 by which the air-valve of a torpedo launched from an aeroplane is opened to start the motor as the torpedo is fired, is rocked by a disengageable strop or cable 8, the other end of which is anchored to the aircraft. Normally, the loop 8 is held against disengagement from the lever by a claw 6 having a pin-and-slot connection 5, 4 with the lever, but prevented from tilting about the pin 5 by a stop-piece 11 supporting the toe 10 of the claw. When the torpedo is fired and the lever is pulled back by the cable, the toe 10 engages the shoulders 20 of the lever-slot 2 in the valve cover-plate 3 of the torpedo, and the claw is displaced forwardly on the lever until the stop-piece passes from beneath the toe. The claw is then free to tilt over backwards and release the strop. Until the lever 1 is operated, it is held in the forward position by a spring plunger 7, as shown in plan in Fig. 3, but the pull on the lever at launching overcomes the plunger.
Patent GB-1277214-A (GB)
Title: Improvements in or relating to position resolvers
Inventor: MCKEE FREDERICK BRIAN
IPC: F21K2/00
Filed: 1969-07-17
Abstract: 1277214 Laminate MARCONI CO Ltd 29 April 1970 [17 July 1969] 36118/70 Heading B5N [Also in Division G4] A translucent laminate consists of a central layer 16 of translucent material to which are glued on opposite faces slabs 17, 18 of similar material separated by air gaps 19. The slabs may be separated by thin strips of a material of different refractive index and the central layer omitted. The translucent material may be Perspex (Registered Trade Mark) containing a fluorescent dye or air bubbles.
Patent GB-767631-A (GB)
Title: High speed low opening shock stabilized parachutes
IPC: B64D17/18
Filed: 1954-12-14
Abstract: 767,631. Parachutes. PIONEER PARACHUTE CO., Inc. Dec. 14, 1954 [Dec. 30, 1953], No. 36180/54. Class 4. A parachute comprises a number of gores 6 secured to each other at their lateral edges 7 to form a canopy and downwardly convergent shroud lines 3 connected to the said edges, wherein the outer end portions of the gores are so shaped that when the parachute is inflated, the outer end edges 10 of the gores slope downwardly and inwardly towards the descent axis at a material angle, being an angle greater than that assumed by the shroud lines, and wherein a number of circumferentially spaced spoiler panels 13 are each connected between a pair of shroud lines below the canopy. As shown, the panels 13 are placed below alternate gores, and adjacent corners of successive panels are joined by tapes 16. Panels 9 are stitched to the outer end edges 10 of the gores, so as to leave vents 11. A crown vent is provided. Reference has been directed by the Comptroller to Specification 703,026.
Patent GB-1103003-A (GB)
Title: Improvements in or relating to gear boxes for motor vehicles
IPC: H01L39/00
Filed: 1966-08-12
Abstract: 1,103,003. Change-speed control. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. 12 Aug,, 1966 [20 Aug., 1965], No. 36224/66. Heading F2D. A power-assisted gear change mechanism giving eight forward speeds comprises a main section with first and second two-speed stage groups A, B followed by an auxiliary range twospeed group G, the groups being of the constant mesh type operated by clutch sleeves 6, 7, 8, respectively, of which sleeve 6 is operated mechanically by the gear-lever 30, while sleeves 7, 8 are operated by hydraulic servo units 66, 68 controlled by valves 71, 81. As shown, creep and reverse gears C, R are provided, operated by a mechanically controlled sleeve 9. The gear lever 30 moves in two vertically spaced gates, the lower one covering the first four ratios, together with creep and reverse, while the upper one covers fifth to eighth ratios. The gear-box is shown in the neutral position, movement of lever 30 to engage first or second gear being transmitted through links 33, 58 and a bell-crank 61 to move clutch sleeve 6 to the left or right hand engaged position. For third gear a transverse shaft 35 operates control valve 71 to admit pressure liquid to servo cylinder 67 to rotate a second bell-crank 62 and move clutch sleeve 7 from right to left hand position and at the same time bell-crank 61 is operated to move sleeve 6 to the left hand position. For fourth gear bell-crank 61 moves sleeve 6 to the right. To engage fifth to eighth gears lever 30 is first raised to operate a shaft 41 and link 45 to actuate control valve 81 and servo cylinder 68, which in turn operates a third bell-crank 63 to move clutch sleeve 8 of the auxiliary box G to the right hand direct drive position, the movements for first to fourth gears then being duplicated. The creep and reverse gears C, R are engaged by a clutch sleeve 9 directly operated by a bell-crank 64 and link 59.
Patent GB-863446-A (GB)
Title: Improvements in epoxidation
IPC: C07D303/48
Filed: 1958-11-12
Abstract: The invention comprises alkyl a -aryl-a -,b -epoxyalkanoates, mono- or di-epoxidized alkylene glycol bis (2-alkenoates) and 1, 2-epoxycycloalkyl-1-carboxylate esters.  These and other glycidic esters are prepared by reacting the corresponding a , b -olefinic ester of an alcohol free of aliphatic and cycloaliphatic unsaturation, with peracetic acid, for a period of time sufficient to produce said glycidic ester.  2, 3-epoxyalkanoate esters may be prepared by this method.  Suitable starting materials include alkyl, aryl, aralkyl, alkaryl or cycloalkyl 2-alkenoates, alkadienoates, alkylene glycol bis (2-alkenoates) and cycloolefin-1-carboxylate esters.  According to the quantity of peracetic acid used the dienic esters can be mono- or di-epoxidized.  The epoxidation reaction can be effected at temperatures in the range from 0 DEG  to 100 DEG C and reaction times varying from 30 minutes to 18 hours.  Equipment of glass, stainless steel or aluminium is preferred and a polymerization inhibitor such as hydroquinone, 2, 4-dinitrophenol or 2, 4-dinitrom-cresol may be incorporated into the reaction mixture. An inert organic reaction medium such as ethyl acetate or acetone may be employed.  The glycidic esters are useful intermediates. Many detailed examples of products are specified.  An example also describes the preparation of 1, 5-pentanediol bis (2-ethyl-3-propylacrylate) by refluxing 1, 5-pentanediol and 2,- ethyl-3-propyl acrylic acid in the presence of toluene and methane sulphonic acid, followed by epoxidation of the product.
Patent GB-1444152-A (GB)
Title: Photographic products and processes
IPC: G03C8/48
Filed: 1973-07-31
Abstract: 1444152 Coated transparent films POLAROID CORP 31 July 1973 [1 Aug 1972 4 Dec 1972] 36376/73 Heading B2E [Also in Division G2] A transparent photographic support, e.g. polyethylene terephthalate, bears on one surface an anti-reflection coating that is transparent and has a lower refractive index than the support. The anti-reflection coating may have a refractive index at least 0.2 less than the transparent support. The transparent support may shave a refractive index of at least 1.6 and the anti-reflection coating may have a refractive index of 1.3-1.4 and may comprise poly (1, 1-dihydropentadecafluorooctyl methacrylate) optionally together with a silica coating (see Ex. 1 and 2), or a copolymer of vinylidene fluoride and tetrafluoroethylene and optionally vinyl butyrate, hexafluoropropylene or chlorotrifluoropropylene optionally with polymethyl methacrylate (see Ex. 2). An aliphatic or aromatic compound containing at least one isocyanate or isothiocyanate group may be in the antireflection coating or between the coating and the transparent support to increase the abrasion resistance of the coating (see Ex. 3-7). The transparent support may contain a small quantity of a pigment e.g. carbon black.
Patent GB-997353-A (GB)
Title: Polypropylene, processes for its production and articles made therefrom
IPC: C08F110/06
Filed: 1961-10-11
Abstract: Hydrogen-modified polypropylene having a limiting melting point above 175 DEG  C., and preferably a crystallinity of at least 85%, an inherent viscosity in tetrahydronaphtalene at 145 DEG  C. in the range of 0.8 to 1.3, a ratio of weight average molecular weight to number average molecular weight of at least 3.0, is made by polymerizing propylene in the presence of a stereospecific catalyst and hydrogen in an amount from 50 to 6000 parts per million based upon the weight of propylene.  Suitable catalysts are described in Specifications 920,118, 920,119, 920,120, 920,121, 920,512, 920,513, 920,631, 920,632, 920,633, 920,634, 921,636 and 921,639.  The polymerization is effected in bulk, or in a hydrocarbon, or halogen-substituted hydrocarbon solvent or diluent.  The polymer is recovered by conventional techniques, e.g. treatment with isobutanol. In Examples 1 to 4, propylene is bulk polymerized in the presence of varying amounts of hydrogen and a catalyst consisting of ethyl aluminium dichloride, hexamethyl phosphoric triamide, and TiCl3.  In Example 5, propylene is polymerized in mineral spirits, in the presence of hydrogen, and a catalyst consisting of ethyl aluminium sesquichloride, hexamethyl-phosphoric triamide, and TiCl3. The polymers are used to make fibres and yarns by conventional techniques.
Patent GB-871080-A (GB)
Title: A pneumatic controller of the baffle-nozzle type
IPC: G05B11/50
Filed: 1957-11-22
Abstract: 871,080. Fluid-pressure servomotor control systems. TAYLOR INSTRUMENT COMPANIES. Nov. 22, 1957 [Dec. 5, 1956], No. 36456/57. Class 135. In a pneumatic controller of the baffle-nozzle type the baffle comprises or is actuated by a plate acted on by at least two spaced forces which tend to move the plate about different axes. In the first embodiment, Figs. 1 and 2, an input pressure from a measuring device to a bellows 1 deflects the plate 4 about the axis BB<SP>1</SP> and the nozzle back pressure is fed to the bellows 2 which tends to move the plate 4 about the axis A, A<SP>1</SP>. The plate 4 constitutes the baffle of a baffle-nozzle arrangement the nozzle 10 of which is secured to a fitting 5 also carrying a bearing 8. A ball 7 is held by a compression spring 13 between the bearing 8 and a bearing 9 on the plate 4. The nozzle 10 is rotatable on the support 6 through 360 degrees to be located above one of the four quadrants a-d of the plate 4. If the nozzle is located above quadrant a or b a direct action is obtained whereas if it is above quadrant c or d a reverse action is obtained. With the nozzle above quadrant a or d bellows 2 gives a positive feedback effect whereas if the nozzle is above quadrant b or c bellows 2 gives a negative feedback effect. If the nozzle is exactly above the axis AA<SP>1</SP> or the axis BB<SP>1</SP> the effect of bellows 2 or 1 respectively is negligible. The actual gain of the arrangement is determined by the location of the nozzle within the selected quadrant and a scale 12 is provided for'setting purposes. In the second example, Fig. 3, the plate 24 does not act as a baffle but positions the baffle 32 with respect to the nozzle 28 through a mechanism comprising a ball 27, pivoted levers 30, 36. In this case, besides the input bellows 21 and the feedback bellows 20 there are provided a set point bellows 23, a re-set bellows 22, a booster relay R, an-integral restrictbr 42 and derivative restrictor and capacitor 43, 60 respectively.
Patent GB-796953-A (GB)
Title: Circuit arrangements for controlling the frequency of an oscillator
Inventor: COPE JOHN EDWARD
IPC: H04N5/12
Filed: 1954-12-16
Abstract: 796,953. Automatic phase control systems. PYE, Ltd. Dec. 16, 1955 [Dec. 16, 1954], No. 36466/54. Class 38 (4). [Also in Group XL (c)] Differentiated television line synchronizing pulses are applied through capacitors C1, C2 to opposite poles of a pair of rectifiers M1, M2 connected in series, shunted by resistors R1, R2 and a sawtooth wave from a line oscillator 3 applied to the junction of the rectifiers so that the pulses of polarity rendering the rectifiers conductive sample the instantaneous amplitude of the steep flyback portion of the sawtooth, the samples being then integrated in a low-pass filter F and applied to stabilize the phase of the oscillator 3. During the frame synchronizing period the differentiated half line frequency pulses thus coincide with the zero or mid-point of the long slope of the sawtooth and are ineffective., The oscillator may run at a multiple or sub-multiple of the frequency of the synchronizing pulses.
Patent GB-813392-A (GB)
Title: Devices for suspending articles
IPC: F16B15/00
Filed: 1955-12-20
Abstract: 813,392. Releasable fastenings; hooks. NEW HYGIENE Ltd., and MACKEWN, A. R. Sept. 21, 1956 [Dec. 20, 1955], No. 36538/55. Classes 44 and 89(2) A device for suspending an article comprises means for carrying the article and fixing means located at one end of the carrying means and comprising a stem having at least two resilient flanges along the stem, the flanges being graduated in size with the smaller near the free end of the stem and the larger near the carrying means. As shown, a hook member for suspending a block 19 of disinfectant material under the inturned edge 18 of a lavatory pan comprises a stem 10 provided with discs 12-15 of resilient material and a hook portion 17 on which the block is hung. The hook portion may be replaced by an apertured box to hold a block or crystals of material. The discs may be moulded integral with the stem and hook portions.
Patent GB-793236-A (GB)
Title: Process for the preparation of all-trans carotenoid compounds
IPC: A23L5/47
Filed: 1955-12-21
Abstract: All-trans C40-carotenoid are prepared by heating suspensions of 15,151-monocis C40-carotenoid compounds in an inert organic liquid e.g. pentanes, hexanes, cyclohexane, benzene, toluene, petroleum ethers and ethyl acetate.  As the 15,151-monocis carotenoid compound there may be used lycopene, a -, b - and g -carotene and hydroxy and keto derivatives thereof.  Examples describe the production of all-trans-b  - carotene, all - trans - 3,4;31,41 - bisdehydro - b  - carotene, all - trans - 3,4 - dehydro - b  - carotene, all - trans - 4,41 - dihydroxy - b  - carotene, and all-trans-lycopene.  The starting compound 15,151-monocis lycopene is obtained by treating 2,7-dimethyl-octadiene-2,6-ine-4-diol-1,8 with MnO2 to produce 2,7-dimethyl-octadiene-2,6 - ine - 4 - dial - 1,8 which with ethanol yields 2,7 - dimethyl - octadiene - 2,6 - ine - 4 - tetraethyldiacetal - 1,8, which with ethyl vinyl ether yields 3,10-diethoxy-4,9-dimethyl-dodecadiene - 4,8 - ine - 6 - tetraethyldiacetal - 1,12 which by hydrolysis yields 4,9-dimethyl-dodecatetraene-(2,4,8,10)-ine-6-diol-1,12 which with ethanol yields 4,9 - dimethyl - dodecatetraene - (2,4,8,10) - tetraethyldiacetal-1,12, which with ethyl propenyl ether yields 3,14-diethoxy-(2,6,11,15)-tetramethylhexadecatetraene - (4,6,10,12) - ine - 8 - tetraethyldiacetal-1,16, which by hydrolysis yields 2,6,11,15 - tetramethyl - hexadecahexaene - (2,4,6,10,12,14) - ine - 8 - diol - 1,16, which with triphenyl - [3,7 - dimethyl - octadiene - 2,6 - ylidene-(1)] phosphine yields 15,151-dehydro-lycopene, which on hydrogenation yields the desired 15,151-monicis lycopene.  The compound triphenyl - [3,7 - dimethyl - octadiene - 2,6 - ylidene - 1]-phosphine is obtained by treating 1-bromo-3,7-dimethyl-octadiene-2,6 with triphenyl phosphine to produce triphenyl-[3,7-dimethyl-octadiene - 2,6 - yl - 1] - phosphonium bromide which is subsequently treated with phenyl lithium.  Specifications 788,266 and 790,614 are referred to.ALSO:All-trans C40-carotenoid compounds (see Group IV (b)) are useful as colouring materials for foodstuffs.  Compounds exemplified are all-trans-b -carotene all-trans-3,4,31,41-bisdehydro-b  - carotene, all - trans - 3,4 - dehydro - b  - carotene, all - trans - 4,41 - dihydroxy - b  - carotene and all-trans-lycopene. Specifications 788,266 and 790,614, [both in Group IV (b)], are referred to.
Patent GB-1307868-A (GB)
Title: Production of hull or deck plating
IPC: B63B3/18
Filed: 1970-07-29
Abstract: 1307868 Laminates; moulding foamed articles CONSTRUCTIONS MECANIQUES DE NORMANDIE 29 July 1970 [30 July 1969] 36790/70 Headings B5A and B5N [Also in Division B7] A foam lath of constant transverse crosssection for use in the construction of a ship's hull or deck plating comprises sheets of covering material with overhanging side portions which have been closely adhered on longitudinal faces of the lath at the actual time of formation of the foam. In the hull or deck plating the foam laths are glued side by side parallel to one another, an overhanging portion of each of the sheets of covering material extending from an individual lath to which it is adhered to cover also a portion of an adjacent lath. The foam may be a rigid polyurethane foam of closed porosity and the covering material may be fibre-glass sheet. In cross-section each lath may be bonded by two parallelsemi-circles of the same radius joined with one another by two parallel edges of the same shape. A foam lath having adhered thereto sheets of permeable covering material may be produced by applying the sheets to the appropriate surfaces of a mould having a constant cross-section of a shape corresponding to that of the foam lath to be made, progressively injecting the foam-forming mixture from one longitudinal end of the mould to its other end, the mould being closed progressively and in proportion to the injection until its total closure, leaving the foam to develop in the closed mould until sufficient impregnation of the desired parts of the sheets of permeablecovering material is effected and removing the lath from the mould, the parts of the sheets intended to form the overhanging side portions being maintained separate from the volume wherein the foam develops at the timeof moulding.
Patent GB-1070586-A (GB)
Title: Measuring apparatus
Inventor: FRENCH JOHN LINGHAM
IPC: H03M1/00
Filed: 1964-09-08
Abstract: 1,070,586. Electric selective signalling. A. C. COSSOR Ltd. Sept. 7, 1965 [Sept. 8, 1964], No. 36793/64. Heading G4H. [Also in Division F2] Measuring apparatus comprises a member whose position represents with an error the magnitude to be measured and another member indicating the correction necessary to obtain the true magnitude. In Fig. 2 (not shown) an optical scanning device comprises a rotating mirror (23) whose angular position represents with some error the distance away of object (22). Mirror (23) is driven by motor (24) energized via a divider (25) by clock pulses from an oscillator (26). The clock pulses also pass to a gate (30). The motor shaft also carries an error scale (27) having a start mark sensed by pick-up (28) to open gate (30) and a series of marks sensed by pick-up (29) to provide correction pulses which are applied to the gate (30) to be added to the clock pulses from oscillator (26). The gate is closed by a signal from detector (20) indicating that the beam (21) has reached the object (22). The pulses passing through the gate are received by counter (31) and the distance indicated thereby. The clock pulses may be derived from a scale disc having uniformly distributed marks.
Patent GB-1221159-A (GB)
Title: Oil well drill pipe handling apparatus
IPC: E21B19/15
Filed: 1969-07-23
Abstract: 1,221,159. Boring earth and rock. LEE C. MOORE CORP. 23 July, 1969 [31 July, 1968], No. 36953/69. Heading E1F. Drill pipe 12 is guided between a rotary table 4 and a rack 14 with the aid of a shoot 21 adjustable for inclination and mounted for lateral sliding movement along a support member 20 adjacent the edge of an aperture 16 in the floor 5 surrounding the table. Lateral movement of the shoot is effected by a jacking lever 38 inserted through an aperture 37 in the top of a sleeve 25 embracing the member 20 to which the shoot is pivoted to engage successively a series of holes 35. The inclination of the shoot is controlled by an hydraulic jack 28 acting between the shoot and the sleeve. In use, the lower end of a stand of pipe 12 to be racked is received in the upper end of the' shoot, (Fig. I), and lowered down the shoot on to a rigid setback mat 17. The upper end is then set between two fingers of the rack 14. The lateral position and inclination of the shoot are controlled so that the lower end of the pipe is received in a predetermined position on the mat 17 corresponding to the appropriate part of the rack. The jack 28 is fully extended at a single stroke but is retracted by increments corresponding to the distance between adjacent fingers of the pipe rack.
Patent GB-629178-A (GB)
Title: Improvements relating to industrial transporter trucks
IPC: B66F9/06
Filed: 1946-12-16
Abstract: 629,178. Load-handling apparatus. FORKTRUCKS PALLETS, Ltd., and MONTGOMERY, F. M. Dec. 16, 1946, No. 37046. [Class 78 (iii)] A load handling attachment adapted to be fitted to the reciprocable load carrying member of a fork truck comprises a mast frame, a jib pivoted at its inner end to the frame and carrying a lifting hook at its outer end, and a cable which is secured at one end to the outer end of the jib and at its other end is adapted to be secured by a pin or otherwise at one of a number of predetermined points in the length of the mast frame to vary the inclination of the jib according to the outreach required. In Fig. 2, the jib comprises two legs b pivoted at their lower ends at spaced points on the frame a and connected together at their upper end with a swinging plate c therebetween from which a lifting hook d is pivotally suspended. The plate c is attached to a steel cable e which passes over a plate f or a pulley at the top of the frame and is secured to a pin g which may be secured in any one of a number of vertically spaced holes in the frame a. In a modification, Fig. 3, the attachment is formed with members h for engaging over the lifting forks of the truck.
Patent GB-1405435-A (GB)
Title: Methods of electrophoretic deposition
IPC: C09D5/44
Filed: 1972-08-10
Abstract: 1405435 Electro-phoretic coating P P G INDUSTRIES Inc 10 Aug 1972 [11 Aug 1971] 37271/72 Heading C7B The base level in a solids-depleted electrophoretic deposition bath is controlled by feeding a partially neutralized micellar dispersion having a particle size 0À1 to 0À2 micron of an aqueous depositable composition containing a basesolubilized resinous vehicle containing 5 to 20 wt per cent resin solids of a dispersant having a solubility of 50% or less in water at 20C and limited affinity for the vehicle, the degree of neutralization being 5 to 80 wt per cent. The dispersant may be selected from certain specified ketones, (poly) ethers, esters, alcohols, nitrocarbons and miscellaneous solvents, e.g. methyl iso- or n-butyl ketone, 2-ethoxy ethyl acetate, 2- nitropropane or nitromethane. The vehicle may comprise a partially neutralized reaction product of a drying oil fatty acid ester with α, #-ethylenically unsaturated dicarboxylic acid or anhydride thereof, with or without one or more other ethylenically unsaturated monomers; or partially neutralized interpolymers of (hydroxyalkyl esters of) unsaturated carboxylic acids and at least one other ethylenically unsaturated monomer; or a condensation product of melamine, urea with formaldehyde, or benzoguanamine, as cross-linking agent; or alkyd and amine-aldehyde resins and polyepoxides may be used. Neutralizing may be effected with NaOH, KOH, NH 3 or an amine e.g. diisopropylamine. The coating composition may include pigments such as Fe or Pb oxide, SrCrO 4 , C black, TiO 2  BaSO 4 , talc, Cd yellow or red, chromic yellow, phthalocyanine blue or green, and surface active agents, antioxidants and fungicides. The substrate to be coated may be a zinc panel.