baber/WOPTO huggingface dataset:
Patent GB-1447152-A (GB)
Title: Continuous duplicating process and master web for use therein
IPC: B41F16/02
Filed: 1974-08-05
Abstract: 1447152 Duplicating M SHARKEY 5 Aug 1974 [10 Aug 1973] 34471/74 Heading B6C A web-form duplicating master 1 has a paper base 2, a barrier layer 3, and, overlying this, an image 4 comprising a microporous network of a solid binder containing, within the pores, an oil-based ink, the opposite side of the paper base 2 being treated so as not to absorb the oil. The treatment may be an impregnation, or a layer of the same kind of material as layer 3 may be applied (Fig. 2, not shown). Printing is achieved by pressing this web against a web of copy material between rollers, the master and copy both being unreeled before the impression and separately reeled after impression. The barrier layer may be of vinyl resins, e.g. polyvinylidene chloride, or acrylic resins, e.g. ethyl acrylate polymers and copolymers. The layer may also include an inert filler, e.g. silica. The paper may be impregnated with a composition which cures to give a water-insoluble complex of chromium and a long-chain fluorocarbon. The image layer may be applied by means of a pressure-sensitive sheet.
Patent GB-1408104-A (GB)
Title: Process for the manufacture of aqueous epoxide resin emulsions
IPC: C08G59/00
Filed: 1973-07-19
Abstract: 1408104 Epoxy resin emulsions HOECHST AG 19 July 1973 [25 July 1972] 34472/73 Heading C3B Aqueous emulsions of epoxy resins having a water content of 50-70% by wt. relative to the total weight of emulsion are obtained by emulsifying epoxy resins which are liquid at 20-80‹ C., in water, using as emulsifier 0À5-15% by wt. based on the wt. of epoxy resin of an emulsifier mixture consisting of: (a) 30-50% by wt. of abietic acid polyglycol ester, (b) 20-40% by wt. of polyglycol ethers of fatty alcohols and/or (b<SP>1</SP>) polyglycol ethers of p-alkylphenol, and (c) 10-30% by wt. of C 8-18  aliphatic alcohols; the sum of (a), (b), (b<SP>1</SP>) and (c) is 100%. (a) may be ethoxylated abietic acid obtained by reacting 25-30 mols. of ethylene oxide with 1 mol. of abietic acid. (b) may be prepared by reacting 4-30 mols. of ethylene oxide with 1 mol. of a C 8-20  aliphatic alcohol. (b<SP>1</SP>) may be obtained by reacting 4-30 mols. ethylene oxide with 1 mol. of alkylphenol, e.g. p-nonylphenol. Uses.-Coating compositions.
Patent GB-750635-A (GB)
Title: Improvements in and relating to hydraulic turbines and pumps
Inventor: SEEWER PAUL WERNER
IPC: F03B3/18
Filed: 1953-12-11
Abstract: 750,635. Hydraulicturbines and pumps. ENGLISH ELECTRIC CO., Ltd. Dec. 10, 1954 [Dec. 11, 1953], No. 34573/53. Class 110(3) A machine which is operated alternately as a turbine and a pump has adjustable guide vanes 7 which are inserted into the flow towards the runner 1 during operation as a turbine and are retracted from the flow during operation as a pump. The vanes are streamlined with broadened ends and are mounted on rods 4 slidably keyed in members connected by links 13 to a regulating ring 14 rotatable by means of a servomotor controlled by a speed governor. Application of fluid pressure to the piston 10 retains the vanes between the speed rings 8, 9. When the pressure is released hydraulic pressure on the vane lifts it into the pocket 5. A filler piece 6 of the same profile as the broadened end of the vane is fitted over a bearing bush 6<SP>1</SP> of the rod and retained in position by a ring 6". The filler piece acts as a guide for the vane.
Patent GB-809976-A (GB)
Title: Improvements in or relating to spacers for refractory brickwork
Inventor: PARNHAM HAROLD
IPC: F27D1/00
Filed: 1956-11-14
Abstract: 809,976. Refractory brickwork for furnaces. GENERAL REFRACTORIES Ltd. Nov. 14, 1957 [Nov. 14, 1956], No. 34763/56. Classes 51 (1) and 51 (2). Spacers 1 used in refractory brickwork for furnaces comprise combustible sheets 4 having recesses 5 in which are disposed metal inserts .6 whose total area is only a minor fraction, e.g. 9 per cent of the spacer area. The spacers may be made of cardboard, paper, sisal board, strawboard, felt, wood or plastic and the inserts of iron, steel, copper or brass in the form of flat, bent or corrugated discs or wire mesh. The inserts may be round, square or rectangular and are secured in position by strips 7 or sheets of adhesive material on one or both sides. The recesses are formed at least 1 inch from the hot face of the brickwork and are usefully four in number, though this number and the thickness of the inserts are varied to suit conditions. During expansion, the inserts either bond into or fuse into the brickwork and, if the refractory has a high initial rate of expansion, the thickness of the insert is made less than that of the spacer.
Patent GB-825658-A (GB)
Title: Improvements in circuit board wiring techniques
IPC: H05K13/06
Filed: 1956-11-14
Abstract: 825,658. Assembling electrical components on circuit boards. SPERRY RAND CORPORATION. Nov. 14, 1956 [Nov. 30, 1955], No. 34847/56. Class 83 (2). The leads of a plurality of electrical components are simultaneously bent through apertures a circuit board and the board is then dip-soldered to secure the electrical components. A circuit board 23 apertured at 24 is placed on a table 10 with the apertures 24 over corresponding holes in the table 10. A plurality of leads or conductors 27 are then placed over the apertures 24, being positioned either by the engagement of their terminal ends with slots 26 on a bar 25 on the table 10, or by causing pilot portions 19 of needles 17 to be inserted in the apertures 24 and then positioning the leads 27 against the portions 19. The needles 17 are carried by a cross member 14 urged upwardly by springs 15, 16 and guided by pillars 12, 13 slidable in the table 10. With the leads 27 positioned, the member 14 is lowered so that the needles 17 bend all the leads 27 simultaneously through the apertures 24, Fig. 2B, the ends 31, 32 springing outward to bear on the undersurface of the board 23 on upward movement of the needles 17. The pilot portions 19 of the needles may be dispensed with when the slotted bar 25 is provided. In an alternative arrangement leads 27c, Fig. 3B, may be pulled through the apertures 24 by hooked needles 33. More than one lead or conductor may be pushed or pulled through the same aperture 24. A conductor 38, Fig. 4B, may be pushed or pulled in loop form into one or more apertures 24. A further wire 42, Fig. 4C, may be threaded through a loop 41 so formed. A magnetic memory plane may be wired to the board as above.
Patent GB-1522737-A (GB)
Title: Monoazo dyes based on 4-hydroxphenylpropionic acids particularly suitet to the levelled dyeing of synthetic polymide fibres
IPC: C09B29/14
Filed: 1976-08-20
Abstract: 1522737 Monoazo dyestuffs based on 4-hydroxyphenylpropionic acids AZIENDE COLORI NAZIONALI AFFINI-ACNA SpA 20 Aug 1976 [25 Aug 1975] 34862/76 Heading C4P Novel dyestuffs of the formula (wherein R is C 1-3  alkyl or is aryl optionally substituted by C 1-3  alkyl, C 1-3  alkoxy, Cl, Br, NO 2 , CN, C 1-3  SO 2  alkyl, SO 2 NH 2  or CONR<SP>1</SP>R<SP>11</SP> in which R' and R" are H or C 1-3  alkyl; and X and Y are each H, halogen, CH 3 , C 2 H 5 , CN or NO 2 ) are prepared by conventional diazotization and alkaline coupling and are used to dye synthetic fibres, particularly polyamides.
Patent GB-1432372-A (GB)
Title: Solenoid operated switch assemblies
IPC: H01H51/06
Filed: 1972-07-26
Abstract: 1432372 Electromagnetic switches LUCAS ELECTRICAL CO Ltd 13 July 1973 [26 July 1972] 34868/72 Heading H1N A solenoid operated switch for use with motor vehicle starter motors and operating with a time delay comprises a coil 2 on a former 3 contained within a casing 1 having a fixed partition 12. A tubular first armature 4 is biased by a spring 13 away from a second armature 5 and against a stop on a non- magnetic rod 6 on which it is slidably mounted and the rod carries a slidable movable contact 10 biased open with respect to two fixed contacts 7 by a spring 11 acting between the contact and the partition. A further spring 9 between the movable contact 10 and an abutment 8 on the rod acts to drive the movable contact 10 to bridge the fixed contacts 7 when the solenoid coil is energized the relative stengths of the springs being such that firstly the first armature 4 moves from its first position as shown in the Figure to a second position where it abuts the second armature 5, and secondly the two armatures move jointly beyond this second position sufficiently to allow closure of the contacts 7, 8, 10 after an extended total time delay from the instant of coil energization.
Patent GB-926773-A (GB)
Title: Improvements in or relating to means for mounting outboard motors
IPC: B63H20/36
Filed: 1960-10-12
Abstract: 926,773. Outboard motors. J. G. A. WAY HOPE. Sept. 21, 1961 [Oct. 12, 1960], No 34995/61. Class 114. An outboard motor of the type having a driving shaft tube 17 between an engine and a propeller, which is supported on a stern bracket 11 by top and bottom clamps 16 and 19, has a further connecting element, e.g. a bracket 23 secured to deck inboard to which the clamp 16 can be secured when the tube 17 is released from the bracket 11 (Fig. 1 shows the unit supported in both positions). The clamp 16 comprises a hook 15 which may be secured over the pivot 13 or the bolt 26 of the bracket 23, in the latter case the bolt may be tightened to secure the hook. The unit may be supported by a stay (not shown) when outboard from the pivot 13. In a further embodiment the bracket 23 is integral with, or attached to the bracket 11, e.g., by an adjustable stay. Another embodiment describes two deck brackets. Specification 588,464 is referred to.
Patent GB-605519-A (GB)
Title: Improvements in or relating to the production of cellular materials
IPC: C08J9/30
Filed: 1946-01-27
Abstract: <PICT:0605519/IV(a)/1> Expanded, cellular polyvinyl chloride is produced by dispersing air or an inert gas into a paste of polyvinyl chloride powder and a non-solvent plasticiser, submitting the paste to reduced pressure and gelatinising the thus expanded material by heating in an alternating electric field.  Air may be dispersed in the paste simultaneously with its preparation by grinding, for example, in an edge runner mill.  Specified plasticisers are di-2-ethyl hexyl phthalate and tricresyl phosphate.  Basic white lead carbonate may be included in the mixture.  Apparatus for carrying out the invention (Fig. 1) consists of an insulated glass cell 2 containing the paste, placed between two electrodes 5 in a glass vessel 4 capable of evacuation.  Thin sheets of mica 6 are so placed as to avoid discharge between the electrodes.  In a modification, two opposing walls made of brass act as electrodes, the remainder of the cell being of glass.  Heat losses from the walls which result in cooling of the outer layers may be overcome by completing the gellation in an oven, or by heating the container, or by using a container which is an imperfect dielectric.  Specification 500,298 is referred to.
Patent GB-1271953-A (GB)
Title: Examination grading computer
IPC: G06K17/00
Filed: 1969-07-11
Abstract: 1,271,953. Statistical apparatus. EDUCATIONAL COMPUTER SYSTEMS Inc. 11 July, 1969 [11 July, 1968], No. 35139/69. Heading G4M. A translucent examination answer sheet on which student responses have been blacked in at selected multiple choice answer positions is transported by a rotating transparent drum in superimposed relationship with an opaque master sheet which has been punched at the correct answer positions, incorrect answers resulting in the passage of light from sources inside the drum through the sheets to corresponding photo-cells to actuate a counter which either records the number of incorrect answers or the total score. A solenoid may be actuated to mark the answer sheet adjacent the row of answer positions corresponding to each incorrectly answered question, and the total score may also be printed on the answer sheet. Holes in the answer sheet may be engaged by pins on the drum, and the drive motor may be energized from actuation of a counter reset switch until an opaque section of the drum is detected by a photo-cell after the complete answer sheet has been sensed and has dropped off the drum. The drum may be driven by belts which press the answer and master sheets against the drum surface.
Patent GB-405781-A (GB)
Title: An improved method and apparatus for heating and cooling fluids
IPC: F25B9/04
Filed: 1932-12-12
Abstract: 405,781. Heating and cooling gases. GIRATION DES FLUIDES, Rue George Sand, Montlucon, Allier, France. Dec. 12, 1932, Nos. 35160 and 35161. Convention dates Dec. 12, 1931 and Nov. 18, 1932. [Classes 29 and 64 (i).] A current of fluid under pressure is directed with a rotary motion along the inner surface of a cylinder 12, Figs. 9, 10, and the outer layer of fluid, which is heated by compression due to centrifugal action is drawn off through an annular orifice 10 at one end of the cylinder, while the inner layer, which is cooled by expansion, is deflected and drawn off at the other end of the cylinder. In modifications the tangential inlet passages 7<a> are replaced by rotating or stationary helical vanes 23, Fig. 13, and the cooled layer of fluid is withdrawn through an annular opening 25 concentric with outlet 10 for the hot layer.
Patent GB-863564-A (GB)
Title: Improvements in or relating to signal limiting circuits
Inventor: ASKEW GERALD HAMILTON
IPC: H04N5/16
Filed: 1958-11-03
Abstract: 863,564. Limiting circuits. BUSH & RANK CINTEL Ltd. Nov. 2, 1959 [Nov. 3, 1958], No. 35193/58. Class 40(6) An arrangement for limiting the excursion of a signal in both directions and which is linear within its pass range comprises a cathode follower with its cathode load resistor 4 taken to a point of negative potential. The cathode is prevented from going negative by means of a diode 5 connecting it to ground, while the output is prevented from exceeding a given positive limit by means of diode 6 the cathode of which is connected to the cathode of the cathode follower and the anode to a fixed positive potential provided by potentiometer 7, 8, 10. The output is taken from terminal 9. The cathode follower may be replaced by a transistor in emitter follower connection. Residual non- linearity of the cathode follower within its pass range may be compensated by equal and opposite non-linearity in the diode 6, or by following the arrangement by a similar valve in groundedgrid connection (Fig. 2, not shown). In a modification (Fig. 3, not shown) a point on the resistor 8 is connected to a negative potential via a resistor, so that no current flows through resistor 10; this allows of variation of the gain by making the right-hand part of resistor 8 variable, without alteration of the D.C. level. The D.C. level may be made other than earth potential by connecting a resistor between the output terminal 9 and a source of potential. The upper clipping level is adjusted by variation of resistor 7. In a further modification (Fig. 4, not shown) resistor 10 is replaced by a potentiometer in series with a resistor on its earthy side, the output terminal being taken to the potentiometer slider and also to earth via a resistor. In this modification the values of the resistors can be so chosen as to give a nearly constant output impedance.
Patent GB-386426-A (GB)
Title: A new or improved switch device for use in the electrical systems of automobiles
IPC: B60R16/00
Filed: 1931-12-21
Abstract: 386,426. Couplings. McCARTHY, H. R. C., 37, Richmond Park Road, East Sheen, London. Dec. 21, 1931, No. 35248. [Class 38 (i).] A circuit - breaking device or switch is adapted to be clamped to a terminal of a motor-car accumulator and is connected to the usual lead. In the construction shown in Fig. 1, two metal parts 1, 2, are connected to one another by an insulating member 3, part 1 being tapered and fitted with a clamping bolt 7, so that it can be secured to the ordinary accumulator terminal, while the other part 2 is formed with a tapered pin 8 to which the usual terminal on the end of the lead may be clamped. The two parts 1, 2 are electrically connected, when required, by a metal plug 11 fitting in an aperture 10, formed conjointly in the two parts. In a modification shown in Fig. 2, the two parts 1, 2 are connected by a knife switch 13, hinged to the part 2.
Patent GB-1256179-A (GB)
Title: Widscreen wiper blade
IPC: B60S1/38
Filed: 1969-07-15
Abstract: 1,256,179. Windscreen wipers. DUCELLIER ET CIE. July 15, 1969 [Aug. 2, 1968], No.35490/69. Heading A4F. A windscreen wiper blade comprises a wiper element 1 made of a material such as rubber and secured to an arm 5 by claws 6 which engage longitudinal grooves 10 in the element, the ends 11 of the longitudinal grooves and one or more flexible, resilient portions 12 projecting from the wiper element forming stop means to entrap the pair of claws. As shown, two portions 12, which are integral with and project from the sides of the element, are deflected by the claws as the claws slide along the grooves 10 but revert to their initial shape on passage of the claws, thus securing the arm 5 to the element 1. In a modification a single portion 12 projects from the back of the element 1 and has a cross-section similar to the internal cross-section of the arm 5.
Patent GB-994814-A (GB)
Title: Protective cover for electrical conductor bodies
IPC: H01L21/00
Filed: 1962-09-19
Abstract: <PICT:0994814/C1/1> An electrical circuit element, particularly a semi-conductor body 10 of silicon or germanium, having a PN junction 13 extending to a surface 14 of the body as in silicon diodes and transistors (see Division H1), is provided with a protective cover by forming a layer of silicon oxide 11, 17 on the element surface (see Division C7) and bonding to this layer, which is 1,000 to 30,000 <\>rA thick, a layer of glass 19, which is 8,000 to 500,000 <\>rA thick, preferably by depositing powdered glass on the oxide layer 17, e.g. by spraying, settling or silk screening, and fusing it to chemically bond the layers.  A preferred method disclosed in Specification 992,044 is centrifuging the element with the oxide layer in an organic fluid containing a suspension of finely-divided glass particles. Preferred glass compositions are borosilicates containing the oxides PbO, Al2O3, K2O and/or ZnO, in order that the thermal coefficient of expansion of the glass may be similar to that of the element.ALSO:<PICT:0994814/C6-C7/1> <PICT:0994814/C6-C7/2> An electrical circuit element, particularly a semi-conductor body 10 having a PN junction 13 extending to a surface 14 of the body as in silicon diodes and transistors (see Division H1), is provided with a protective cover by forming a layer of silicon oxide 11, 17 on the element surface and bonding to this layer, which is 1,000-30,000<\>rA thick, a layer of glass 19, which is 8,000-500,000<\>rA thick, preferably by depositing powdered glass on the oxide layer 17 and fusing it to chemically bond the layers. In order that the thermal coefficient of expansion of the glass may be similar to that of the element suitable borosilicate glass compositions (see Division C1) may be used.  When the circuit element is of silicon, the oxide layer may be integrally formed on the element by heating it to 900-1400 DEG C. in an oxiding atmosphere such as air saturated with water vapour or steam.  For germanium the silicon oxide layer may be formed by evaporation. The oxide layer may also be formed by electrochemical treatment. Selected areas of the cover may be removed by etching with HF using a conventional etching mask down to the circuit element so that metal buttons 20 and 29-32 may be deposited by evaporation, e.g. to provide terminals, Fig. 3(b); a metal conducting layer 21 may be applied to the base of the element by evaporation or soldering, Fig. 2(d).  Connecting the buttons 29 and 20 in Fig. 3(b) is shown a resistor 39, e.g. of Cr or SnO2 deposited on the glass layer 19. Other conducting connections (not shown) may be deposited on the glass by evaporation or sputtering. Specification 992,044 is referred to.
Patent GB-1041127-A (GB)
Title: Method and apparatus for the photoelectric contactless measurement of dimensions
IPC: G01B11/02
Filed: 1964-09-01
Abstract: 1,041,127. Selective signalling. ZARODY V. I. LENINA PLZN. LARODNI PODNIK. Sept. 1, 1964 [Sept. 14, 1963], No. 35673/64. Heading G4H. In a linear dimension measuring system a beam of light is swept across the object and the period for which the beam is blocked is measured by counting synchronously generated clockpulses. As described, the light beam can be swept across the object either by two mirrors 16, 17, Fig. 2, carried on continuously rotating endless belts or by two helical mirrors 25, 26, Fig. 3, continuously rotating and co-operating with two vertical slits 19, 20.
Patent GB-399347-A (GB)
Title: Improvements in or relating to shutters, doors and the like
IPC: E06B9/68
Filed: 1932-12-16
Abstract: 399,347. Brakes. MILNERS' SAFE CO., Ltd., 12, Newgate Street, London, and JACKSON, J. F., Phoenix Safe Works, Liverpool. Dec. 16, 1932, No. 35675. [Class 103 (i).] In hand-operating gear for doors or shutters which tend to close under their own weight, a brake is arranged to oppose downward movement of the door under normal conditions, but means are also provided whereby the brake may be released, for example in case of fire, to allow the door to close by its own weight, the brake being reapplied, to restore normal operating conditions, after an interval of time sufficient for the closing of the door. The door is operated by gearing from a vertical shaft 18 which is connected by bevel gears to a handoperated horizontal shaft 21 ; the shaft 18 carries a governor 30 which restrains the speed of motion by friction means. A brake drum 32, freely mounted on the shaft 21 and connected thereto by pawls and ratchet gear 35 to rotate when the door is descending, is normally engaged by a brake shoe 40 carried on a pivoted lever 37, which is connected at one end to a sliding bar 36. The operation of the release means, which may be a fusible link or equivalent device, allows the bar 36 to fall under its own weight, and thus release the brake 40. The initial movement of the bar 36 also carries a lug 53 on it clear of an arm 63 on a governor 57, which is thus released to rotate under the action of a torsion spring 56, kept normally wound up. The consequent movement of the governor arms forces down a sleeve 61 into contact with a plate on the end of a lever 50 connected to the bar 36; the downward movement of the bar 36 is thus arrested until the spring 56 is unwound and the governor ceases to rotate, the period of motion of the governor being sufficient to allow the door to close. The bar 36 can then complete its downward movement, bringing a second brake shoe 39, on another pivoted lever connected to the bar 36, into contact with the brake drum 32 to resist the falling tendency of the door when it is subsequently opened. The governor gear for obtaining the requisite time interval between the release of brake shoe 40 and the application of shoe 39 may be replaced by a dashpot connected to lever 37, an additional weight being provided to overcome the resistance of the dashpot.