baber/WOPTO huggingface dataset:
Patent GB-1388031-A (GB)
Title: Transesterification catalysts for production of poly -c4 to c12 alkyleneterephthalate
IPC: C08G63/85
Filed: 1972-03-29
Abstract: 1388031 Bis(hydroxy alkyl)terephthalates FMC CORP 29 March 1972 [24 May 1971] 14908/72 Heading C2C [Also in Division C3] Bis(hydroxy C 4-12  alkyl)terephthalates are prepared by transesterifying a C 1-4  dialkyl terephthalate and a C 4-12  alkylene glycol using a transesterification catalyst of the formula M x TiF 6  where M is a NH 4  radical, an alkali metal or alkaline earth metal, x is 2 where M is monovalent and x is 1 where M is bivalent. The examples describe reacting dimethyl terephthalate with 1,4-butanediol, 1,6-hexanediol, 1,10- decanediol, 1,5-pentanediol or 1,12-dodecanediol using catalysts of the above formula, e.g. diammonium hexafluorotitanate.
Patent GB-1140728-A (GB)
Title: Windscreen wipers
Inventor: HADEKEL RUBEN
IPC: B60S1/38
Filed: 1966-04-04
Abstract: 1,140,728. Windscreen wipers. TRICO-FOLBERTH Ltd. 31 March, 1967 [4 April, 1966], No. 14912/66. Heading A4F. A windscreen wiper harness 10 comprises a number of pressure-transmitting members 18, 19, 21, 22 which distribute pressure from a wiper arm attachment point to a number of points 13-17 along a backing strip 11 for the rubber 12, the members 18, 19 each consisting of two generally parallel rods 25, 26 and the members 21, 22 being made of sheet metal. The members 18, 19 extend from a central pivot 20 whilst the member 22 is also pivoted at 20 and extends from the point 17 to the middle of the member 21. The member 21 extends between the points 15, 16 and both members 21, 22 have a V-shaped cross-section. Notches are cut in the backing strip to reduce its weight and one end is formed with a downturned bridge 31. A latch member 33 prevents the rubber moving axially out of the backing strip and the construction of the harness reduces the effects of lift due to air flowing over a vehicle windscreen. Reference has been directed by the Comptroller to Specification 940,214.
Patent GB-572614-A (GB)
Title: Improvements in shoes
IPC: A43B23/22
Filed: 1943-09-11
Abstract: 572,614. Shoes. WILKES, A.D. Sept. 11, 1943, No. 14923. [Class 17 (ii)] A shank stiffener 10, more especially for children's shoes, is offset from the medial line towards the inside of the foot in line with the big toe, and has a lateral projection 11 at the rear under the heel. It may be attached in the shoe by integral prongs 15 or by fastenings driven through the ends of a strip of leather or other material fastened to the stiffener so as to project beyond the ends, the breast face 13 of the heel being at or near the forward end of the projection.
Patent GB-102705-A (GB)
Title: Improvements in Economisers for Gas-cooking Stoves.
Inventor: HARRISON HERBERT
IPC: F24C15/10
Filed: 1916-10-20
Abstract: 102,705. Harrison, H. Oct. 20, 1916. Heat-distributors.-In a gas-economizer of the kind used on gas cooking-stove hot-plates, and consisting of a shallow chamber with two apertures d<1>, d<2> in its upper surface a and one in its lower surface b arranged so as to distribute the heat from a gas burner over the undersides of two utensils, the secondary aperture is formed with a series of embossings g or flutings f, or preferably both, so as to distribute the heat evenly over the underside of the utensil above it.
Patent GB-180697-A (GB)
IPC: F02D9/00
Filed: 1922-05-29
Abstract: 180,697. Paffrath, P. C., Pochwadt, R., and G³nzel, A. May 30, 1921, [Convention date]. F l,u i d - actuated valves.-Additional air is admitted to the induction pipe c of an internal - combustion engine through holes f in a hollow stem e carried by a suctionactuated s p r i n g - loaded piston d formed integral with a valve i<1> adapted to co-operate with a valve seat i on the perforated cap h of the casing a. The loading - spring m is mounted between the cap h and a disc n adjustable on a spindle e secured at the top to the stem e.
Patent GB-312796-A (GB)
Title: Improvements in roller skates
IPC: A63C17/08
Filed: 1928-05-23
Abstract: 312,796. Duisenberg, G. May 23, 1928. Skates.-A roller skate has a main roller b under the instep and auxiliary rollers c, d, in line with the main roller but on a higher level, these auxiliary rollers being carried in forked brackets e moving about pivot pins f so that these rollers can move in a horizontal plane to follow the curve in which the skate moves. In a modification, Fig. 3, each auxiliary roller is mounted loosely on a spherical hub h, in turn mounted on a shaft g in the fork e. The main roller b is' adjustable on the foot plate a, it being mounted in a forked bracket l, Fig. 5, having horizontal extensions o which engage side edges of a slot n in the foot plate. An extension m of the bracket has a slot r for engagement by a single clamping screw p.
Patent GB-1275403-A (GB)
Title: Fluid control valves
Inventor: BOTTOMS HARRY SIMISTER
IPC: B64D37/00
Filed: 1968-03-29
Abstract: 1275403 Fluid-pressure servomotor systems JOSEPH LUCAS (INDUSTRIES) Ltd 23 May 1969 [29 March 1968] 15168/68 Heading G3P A closure member 17 is moved relative to a seat 16 to control flow between an inlet 13 and an outlet 14 by fluid-pressure in chamber 25 which is controlled by a pilot valve connected to port 23 and responsive to liquid level. A fixed member 24 with an outward end taper 24b extends through a port 22 in the closure member to control the position thereof in conjunction with the pilot valve opening and when the closure member is moving towards the seat with the pilot valve closed the tapering portion 24b will reduce the effective area of port 22 to slow the speed of movement of the closure member and prevent water hammer.
Patent GB-458750-A (GB)
Title: Improvements in or relating to television and like transmitters
IPC: H04N3/223
Filed: 1935-05-24
Abstract: 458,750. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.- (Assignees of Iams, H. ; 209, Prospect Street, East Orange, New Jersey, U.S.A.) May 24, 1935, No. 15171. Convention date, May 26, 1934. [Classes 40 (iii) and 40 (v)] Part only of an electric image, obtained on a mosaic screen 12 from a projected optical image, is transmitted by varying the area scanned by a cathode-ray 20. The amplitudes of the scanning-voltages produced by sawtooth blocking oscillators 26, 30 are varied by adjusting the anode voltages by potentiometers 58, 54, which are operated by a common control 62. The control also operates potentiometers 82, 90, which vary respectively the intensity of the cathode beam in proportion to and the size of the beam inversely to, the size of the area scanned. The position of the area scanned is adjusted by controlling the direct current in auxiliary deflecting-coils 22a, 24a by potentiometers 72, 76.
Patent GB-796030-A (GB)
Title: Improvements in or relating to automatically closed doors
IPC: E05F1/10
Filed: 1956-05-16
Abstract: 796,030. Door - operating appliances, hinges. SCHWAGER, A. G. May 16, 1956 [May 16, 1955], No. 15201/56. Classes 65(1) and 65(2) [Also in Group X] A swinging door formed of a sheet 9 of flexible material held on at least two of its sides by a framework comprising a pair of tubes 5, 6 supporting half-round portions 7a, 7b, 8a, 8b of corner plates 7, 8. and halfround portions 10 of top and side strips 11, the sheet being held between said plates and strips by bolts 12, is urged to the closed position by a pair of spring-biased arms 20, 23 engaging opposite sides of the door, a disc 19 integral with arm 20 being fixed to a vertical shaft 18 journalled in the door frame 1, a disc 22 integral with arm 23 being journalled on shaft 18, and a torsion spring 26, surrounding shaft 18, being secured at its respective ends to disc 22 and to a sleeve 27 fixed to the lower end of shaft 18. As shown, disc 22 is integral with a sleeve 21 adjustably fixable to a surrounding cup-shaped part 24 by means of a pin 29 passing through any one of a series of radial holes in part 24, and the upper end of spring 26 is secured to the latter. Both arms engage the opposite sides of a fixed abutment 31 in the closed position of the door. An anti-friction washer 32 is inserted between the discs. Sleeves 5a, fixed in the ends of the vertical tube 5 of the door framework, have projecting portions journalled in ball bearings 3 mounted in the door frame 1.
Patent GB-1456540-A (GB)
Title: Monoazo pigment and process for its manufacture
IPC: C08K5/00
Filed: 1974-04-05
Abstract: 1456540 Mono-azo pigment from p-nitroaniline and 5-acetoacetylamino-benzimidazolone HOECHST AG 5 April 1974 [7 April 1973] 15249/74 Heading C4P The novel pigment is prepared by coupling diazotized p-nitroaniline with 5 - acetoactylamino - benzimidazolone and then subjecting the product to a thermal after treatment preferably in the presence of a solvent. Coupling is preferably effected in the presence of a surface-active compound, e.g. stearyl alcohol oxyethylate having 20 ethylene oxide units. The pigment may be used for the production of printing pastes, colour lakes and dispersion paints, for the coloration of natural rubber, plastics materials and natural and synthetic resins, for pigment printing on a substrate, e.g. textiles and paper, for the dyeing of viscose rayon, cellulose ethers and esters, polyolefins, polyamides, polyurethanes, polyglycol terephthalates and polyacrylonitrile in the spinning solution and for the colouring of paper.
Patent GB-131765-A (GB)
Title: Improvements in or relating to Electric Accumulators or Secondary Batteries.
IPC: H01M10/12
Filed: 1918-09-20
Abstract: 131,765. Clark, E. J., and Hart Accumulator Co. Sept. 20, 1918. Separators; supports for electrodes; electrodes. - An electrode comprising a number of panels mounted in a frame so as to allow for expansion is provided with recesses to receive spherical enlargements 8<a> formed on glass tube separators 8. Projections 6 are formed on the sides of the electrode and rest on supports 7 to raise the electrode from the bottom of the cell. The bus-bars 9 are of T section. The panels of the electrode are smaller than the apertures in which they are situated, and are connected to the cross-bars 10<a> by lead strips 10<b>. The electrode may be made by first casting the frame with the bars 10<a> in a mould, and then inserting the panels in position and casting the connecting strips 10<b>. Or the frame may be cast without the cross-bars, these being subsequently cast with the strips 10<b> after the panels have been placed in position. In another method, the panels are placed in a mould and the frame, crossbars, and connecting strips cast in one operation.
Patent GB-842521-A (GB)
Title: Improvements in high-pressure fluid containers
IPC: F15B1/24
Filed: 1958-05-13
Abstract: 842,521. Closures for assisting fluid pressure. GRATZMULLER, J. L. May 13, 1958 [May 14, 1957], No. 15286/58]. Class 123(1) [Also in Group XXIX] In order to reduce the cost of manufacture of a hydraulic accumulator or other container of high pressure fluid, the body of the accumulator is constituted by a cylinder having its wall as thin as possible having regard to the maximum service pressure and having at each end a closure member co-operating with two annular abutments engaged in grooves in the cylinder. A cylinder 1 is formed with grooves 13, 15 in which abutments 12, 14 are provided which cooperate with abutment surfaces on a sleeve 10 mounted on a closure member 4. A sealing ring 9 is compressed between the sleeve and the closure member. Abutment 12 is constituted by a wire, abutment 14 by three segments which together subtend slightly less than 360 degrees, the resulting gap being closed by a key. Reinforcing rings 18 prevent flaring of the ends of the cylinder. In a modification abutment 14 is constituted by two wires, the first wire bearing against groove 15 and the second wire, the second wire in turn abutting an abutment surface on the sleeve 10. In another modification abutment 14 is constituted by a single wire which co-operates with a second sleeve which abuts sleeve 10. Specifications 702,088, 712,577 and 814,830 are referred to.
Patent GB-1423164-A (GB)
Title: Rectifying networks for use in fuel supply systems for engines
IPC: F02D41/38
Filed: 1972-04-04
Abstract: 1423164 Measuring A.C. voltage C A V Ltd 21 March 1973 [4 April 1972] 15345/72 Heading G1 [Also in Division G3] A rectifying circuit including a diode bridge 26, Fig. 1, is characterized in that it also includes an amplifier 31 having a diode 34, 35 feedback path which compensates for the forward-volt drop across the diodes in the bridge. This is so because since the input impedance of the amplifier is extremely high, the current that flows from the source of A.C., i.e. winding 23, via a resistor 29a, two diodes of the bridge 26 and a resistor 29b, must equal the current that flows in the feedback path via the two diodes 34, 35 and a resistor 36, and hence, assuming that resistor 36 equals the sum of resistors 29a and 29b, the output voltage of the amplifier must equal the output voltage of the winding 23. The circuit forms part of a fuel injection control system, see Division G3.
Patent GB-153465-A (GB)
Abstract: 153,465. Wade, H., (Jenckes Knitting Machine Co.). Nov. 12, 1919. Knitted fabrics.-An anti-run-back band or stop course for arresting the running or laddering of loops in the direction in which the fabric is knit due to the parting of the body yarn is inserted at intervals by feeding to alternate needles for one or more courses, an extra yarn 2 the presence of which tends to strengthen the fabric. Fig. 2 shows the ladder arrested by the stop course 2.
Patent GB-774452-A (GB)
Title: Improvements in electron tubes of the gas-filled type
IPC: H01J17/10
Filed: 1955-05-27
Abstract: 774,452. Discharge tubes. MACHLETT LABORATORIES, Inc. May 27, 1955 [June 22, 1954], No. 15397/55. Class 39(1). In a gas-filled tube such as a thyratron, the envelope has an opening at one end, with an outwardly extending neck 29 encircling the opening, and an inwardly extending coaxial support 30 which carries a control electrode ; the anode 25 is supported by a tubular .member 27 lying within the opening, one end of this member being sealed to the outer end of the neck and the other end to the anode, so that anode and member close the opening. The member-to-neck seal may be made with an intermediate collar 28 of appropriate material, which may be spaced from the member 27 by a ring, Fig. 3 (not shown). An extension 27a on 27 protects the seal from discharge effects. The other end of the member is brazed to block 26 secured to the rearward surface of the anode. This side is thus exposed to the atmosphere for cooling. The neck 29 closely surrounds the member 27, and is continued within the envelope, as at 30, to provide the support for the grid structure. This is a cylindrical member 31, 32, closed at one end by a wall 35, and extending at the other end below the level of the open end of the cathode 18. The grid itself is a perforated disc 33 ; an additional disc 34, whose perforations are offset from those in disc 33, gives better control over the firing of the thyratron. In the modification of Fig. 3 (not shown) the anode and grid surfaces are tubular and concentric, instead of planar and parallel, with a deionization skirt depending from the grid structure. The gas filling may be hydrogen, with a gas generator 37 within the envelope for maintaining the pressure.
Patent GB-570526-A (GB)
Title: Device for the sparkless interruption of a multi-phase circuit
IPC: H02M7/40
Filed: 1943-09-20
Abstract: 570,526. Converting. AKT.-GES. BROWN, BOVERI, & CIE. Sept. 20, 1943, No. 15428. Convention date, Oct. 9, 1942. [Class 38 (ii)] [Also in Group XXXVII] Sparking in mechanical switches employed as a polyphase inverter is prevented by shunting the contacts by a common grid-controlled discharge vessel having as many anodes as there are contacts and a common cathode and. series-connected, auxiliary-voltage source. In an arrangement adapted for full-wave rectification, wherein the load connected across G is controlled by switches K1 ... K6, a six-anode vessel E with auxiliary battery Hand impedances Za, Zk, is supplied by a double three-phase transformer T connected between the switches and chokes D1 ... D3. In Fig. 3, a pair of transformers are employed, and the source H is replaced by an auxiliary transformer T1. The transformer T has low leakage. The gridcontrol is effected either in dependence on voltage-changes in the reactors or by auxiliary switches coupled to the main contacts. Singlephase transformers may replace the polyphase transformer.
Patent GB-959239-A (GB)
Title: Improvements in or relating to reinforced concrete piles
Inventor: CURTIS ROBERT JAMES
IPC: E02D5/52
Filed: 1962-04-24
Abstract: 959,239. Piles. JOHN GILL CONTRACTORS Ltd. April 19, 1963 [April 24, 1962], No. 15524/62. Heading E1H. In a reinforced concrete pile formed in situ by means of precast concrete units, each unit J (Figs. 4 & 5) is of cylindrical form provided with at least two grooves M diametrically opposed the whole length of the exterior of the unit and so disposed in relation to holes L for the main reinforcing steel bars as to ensure that the holes are kept in alignment between the units when forming a pile, means (steel wire rope E, Figs. 2 & 3) being provided to co-operate with the grooves to assemble a column of units in alignment. The pile is formed by forming a bore in the ground C, lining the bore with a tube, placing the units J within the bore by means of a loop of the steel wire rope E running through the grooves (Fig. 2), withdrawing the rope (Fig. 3), filling said tube and concrete units with cement grout (via a pipe N in the bore K in the units), and withdrawing the tube.
Patent GB-399602-A (GB)
Title: Improvements in gear cutters
IPC: B23F21/10
Filed: 1932-06-01
Abstract: 399,602. Gear cutting. SYKES, Ltd., W. E. and TRY, W. H., The Hythe, Staines, Middlesex. June 1, 1932, No. 15551. [Class 83 (iii).] Tools.-A gearcutting tool of the reciprocating- pinion cutter type comprises a recessed untoothed portion 5 followed by portions 1 .. 4 having teeth of progressively increasing thickness and/or depth. The tool is of approximately five times the blank diameter and the blank is loaded when it is opposite the portion 5 and is positioned at its correct distance from the tool axis, no lateral feed movement being required. As the cutter is rotated for the generating movement, the roughing teeth 1, 2, finishing teeth 3 and shaving teeth 4 come successively into action, the blank rotating through one revolution at each stage. Short teeth 1a may follow the space 5 to ensure more gradual engagement of tool and work. The tool may have either integral or inserted teeth which may be straight or helical and of any desired profile suitable for generating.
Patent GB-355298-A (GB)
Title: Improvements in the manufacture of articles from cellulose esters or ethers
IPC: D01F2/28
Filed: 1930-05-21
Abstract: Artificial threads, ribbons, films, sheets and other shaped products are obtained from solutions of elevated temperatures of cellulose esters or ethers in relatively non-volatile substances which are non-solvents for the cellulose derivative at ordinary temperatures. The products may be obtained by extrusion and coagulation by cooling either in a gaseous medium or in a liquid coagulating medium. Glycols such as ethylene glycol, diethylene glycol, propylene glycol, trimethylene glycol, 1,2 and 1,3-butylene glycols, and glycerine, mono ethers of glycerine and other polyhydric alcohols are solvents for cellulose esters or ethers at elevated temperatures but are non-solvents at lower temperatures.  Solutions of cellulose acetate in glycerine or glycol may be made by stirring the ingredients and gradually raising the temperature to 170-210 DEG  C.  White or coloured mineral or organic pigments may be mixed with the solutions in order to obtain coloured or reduced lustre effects.  When producing heavy products such as bristles or films rollers may be provided for supporting the weight of the extruded product so as to prevent breakage.  The candle or filtering or other chamber through which the solution passes prior to extrusion may be surrounded with a heating jacket, and the solution may be insulated up to the moment of its extrusion.  The spinning cell may be maintained at atmospheric or higher temperature and there may be a progressive cooling from the region of the nozzle to the point of take up of the products.  The spinning atmosphere may contain the vapours of acetone, water, benzene, xylene, alcohols, or other solvent or non-solvent.  For wet spinning, baths of water or other liquids which are non-solvents for the cellulose derivative and which remove the glycerine or other solvent may be employed.  Glycerine or glycol may be used as coagulant, either alone or in mixture with water.  The coagulating baths may also contain acetone, diacetone alcohol, diethyl phthalate, lactic acid, dioxane, tricresyl phosphate, diethyl tartrate, or sodium chloride, sodium acetate, ammonium sulphate or sugars.  A series of baths may be used of progressively decreasing temperatures. The glycerine or like solvent separates readily from the product and may be removed by washing, or in the case of thick films it may be pressed out by means of heated pressure rollers.  The products may be treated with steam or hot aqueous liquids to produce a delustred or milky effect.  Specifications 320,632, 338,490, [both in Class 2 (ii), Cellulose &c.], 340,324, 340,325, 341,897, 343,062, and 346,678 are referred to.
Patent GB-402771-A (GB)
Title: Improvements relating to hoisting apparatus for use in stacking hay or for other purposes
IPC: B66D5/00
Filed: 1932-06-02
Abstract: 402,771. Hoisting-apparatus. TESTER, F., Stanfords End, Edenbridge, Kent. June 2, 1932, No. 15702. [Class 78 (v).] In a hoisting- apparatus of the kind in which the winding drum is operatively connected with a pulley driven from a second pulley by a belt, the arrangement being such that when the first pulley is moved towards the second pulley, it moves at first freely and then encounters a stationary brake block which holds it against rotation, the first pulley 13 is held by a spring 26 in the position corresponding to normal drive of the winding drum, and also in the position in which the drum is held by the stationary brake block 18. The pulley 13 is mounted in a frame 8 which is pivoted at 9 in a fixed lower frame 1 carrying the second pulley 15. The frame 8 is swung about its pivots by rotating a shaft 21 to which it is connected by links 23 and arms 22. The spring 26 is anchored adjustably at one end to the frame 1, and at the other end is attached to a U-shaped member 27 which is connected to an arm 25 on the shaft 21.