baber/WOPTO huggingface dataset:
Patent GB-1013662-A (GB)
Title: Method for the production of synthetic plastic veneer
IPC: D06N7/06
Filed: 1963-02-06
Abstract: Impregnated paper veneer sheets which may be used for facing plywood, chipboard and fibreboard comprise paper impregnated with a solution of an aminoplast, or a precondensate or prepolymer thereof, in an organic solvent, the paper before treatment having a density of approximately 1g/cm3 an air permeability of 10 to 100 ml/min and small absorbency.  Urea or melamine resins with alkyd resins added to reduce brittleness may be used the preferred resin being an etherified melamine.  The organic solvent preferably has high surface tension e.g. xylene or dioxane.  The proportion of resin is about 20-25% of the weight of the finished product.  Impregnation of the paper may be effected by drawing it through a trough of resin solution, the excess being removed by a pair of rollers and the solvent driven off in a drying duct. Alternatively the resin solution may be applied by pouring it on to one face of the paper and controlling the drying so that diffusion of solution ceases just before penetration to the underside of the paper which thus retains its fibrous character. Pigments may be incorporated and these will tend to lie on the surface; for thick paper impregnation in two stages may be necessary, only the second stage being of pigmented resin.  Heat and pressure may be used for hardening, or acid agents may be added for cold hardening e.g. hydrochloric, p-toluene sulphonic of oxalic acids.  The veneer may be applied to a carrier during heat curing or may be stuck to it when cold.
Patent GB-608107-A (GB)
Title: Dental matrix clamp
IPC: A61C5/85
Filed: 1946-02-15
Abstract: 608,107. Dental matrix clamps. SIQVELAND, I. E. Feb. 15, 1946, No. 4803. Convention date, Dec. 14, 1942. [Class 81(ii)] A dental matrix clamp comprises a body portion 10, a band tightening device comprising screw and nut members 31, 30 and a slide clasp 16 to which the band B is attached, and an anchoring member 20 to which the other end of the band is secured adjustably mounted on body portion 10 so that the band may be adjusted angularly in a direction transversely of the band. This adjustability is provided by two notches 14, 15, Fig. 4, in the body portion in either of which the anchor member 20 may pivot. The anchor member Fig. 7, is formed with a flange 24 around which one end of the band B is folded. The end of member 26 engaging slide 16 is formed with a flange 29 which locks the band against the slide.
Patent GB-751238-A (GB)
Title: Improvements in two speed transmission actuated by reversal of drive shaft
IPC: F16H3/00
Filed: 1954-02-18
Abstract: 751,238. Reversing gearing. BENDIX AVIATION CORPORATION. Feb. 18, 1954 [March 9, 1953], No. 4811/54. Class 80(2) An output shaft 12 is rotated at different speeds in the same direction when the input shaft 11 is rotated in different directions by a gear 14 threaded on shaft 11 so as to move axially between one position, in which it meshes with a countershaft gear 18 rigid with a gear 20 meshing with a gear 17 on shaft 12, and another position in which it meshes directly with gear 17. In the intermediate position of gear 14, in which it is out of mesh with both gears 17, 18, a double-armed pivoted brake lever 23 is turned by an enlargement 15 on the hub of gear 14 to engage a drum 27 on gear 18, thereby braking all the gears so as to ensure completion of the travel of gear 14 and to prevent clashing of teeth.
Patent GB-1463121-A (GB)
Title: Method of forming ion-implanted regions in semiconductor material
IPC: H01L21/00
Filed: 1974-02-01
Abstract: 1463121 Semi-conductor devices FAIRCHILD CAMERA & INSTRUMENT CORP 1 Feb 1974 [21 May 1973] 04834/74 Heading HlK Ion-implanted regions are formed in semiconductor material 11, Fig. 1b, overlaid by insulation 12 and a layer of polycrystalline silicon 13, e.g. in a charge coupled device, by using as a mask a layer of a first ion-absorbing material 14 and a layer of a second different non-absorbing material 15, e.g. a photoresist, each mask layer being selectively apertured such that ions are implanted in the semiconductor regions underlying the exposed polycrystalline silicon. In a first method, Fig. 1b, strips of silicon dioxide 14a, 14b, 14c, are formed over the surface of the polycrystalline silicon 13, followed by a photoresist 15 which is apertured to expose parts 16a, 16b, 16c of the polycrystalline silicon and parts of the silicon dioxide strips, an edge of the photoresist together with a respective edge of a silicon dioxide strip defining the extent of the implanted regions 17a, 17b, 17c in the silicon body 11. Next the photoresist 15 is removed and selected impurities are diffused or implanted into regions of the polycrystalline silicon layer not overlain by the silicon dioxide strips 14 to render these regions conductive so that they form respective electrodes separated by a number of resistive intrinsic polycrystalline silicon areas, forming the charge coupled device of Fig. 1c (not shown). In a second method, Fig. 2a, a layer of photoresist 25 is formed over the silicon dioxide layer 24 on the polycrystalline silicon layer 23 and windows 26a, 26b, 26c are formed through both these layers to enable ionimplanted regions 27a, 27b, 72c to be formed in the silicon material 21. Photoresist 25 is then removed and replaced by a new photoresist (29), Fig. 2b (not shown), which covers only part of the remaining silicon dioxide layer 24. The newly exposed portions of this layer 24 then being removed and the now exposed regions of the polycrystalline silicon layer 23 rendered conductive as before.
Patent GB-329306-A (GB)
Title: Improvements in or relating to stands suitable for photographs and the like
IPC: A47G1/14
Filed: 1929-02-14
Abstract: 329,306. Haigh & Sons, Ltd., and Haigh, W. Feb. 14, 1929. Stands. - A card 1 is supported in a substantially upright position by a pair of integral hinged flaps 3 formed by cutting along a vertical line 2 extending from the bottom of the card and scoring the card along lines 4. The upper ends of the scorings 4 meet at the top of the cut 2 or are joined, as shown by a cut 5. The front of the card may have a backing 6, serving as a mount for a photograph, pasted thereon.
Patent GB-987047-A (GB)
Title: 2-guanidino-3-nitropyridine and derivatives thereof
IPC: C07D213/75
Filed: 1963-02-07
Abstract: The invention comprises compounds of the general formula <FORM:0987047/C2/1> (wherein R represents a hydrogen, chlorine, bromine, fluorine or iodine atom or a C1- 4 alkyl group) and the hydrochlorides thereof, and their preparation by refluxing guanidine with a compound of the formula <FORM:0987047/C2/2> in a solvent, optionally followed by conversion to the hydrochloride.  The compounds are antibacterial agents.
Patent GB-1463803-A (GB)
Title: Electroless metal plating
Inventor: LOUCH ROBERT WILLIAM
IPC: C23C18/31
Filed: 1973-02-01
Abstract: 1463803 Photographic processes producing metal images IMPERIAL CHEMICAL INDUSTRIES Ltd 16 Jan 1974 [1 Feb 1973] 5091/73 Heading G2C [Also in Division C7] A metal plated image on a substrate is made by (a) exposing imagewise to sensitizing radiation a substrate bearing a coating of a water soluble quaternized bipyridilium compound dissolved or dispersed in a water permeable film forming matrix, (b) contacting the exposed substrate with an HCL solution of Pd Cl 2 , (c) further contacting the substrate with an aqueous reducing agent solution (formaldehyde excluded) and (d) electroless plating a metal thereon from an aqueous bath. The substrate may be an oriented polyethylene terephthalate film, etched with o-chlorophenol and subbed with PVC-PVA copolymer and gelatine containing HCHO. The quaternary compound may be N, N'-bis(4-cyanophenyl)-4, 4'-bipyridilium dichloride or N, N'-dimethyl-4, 4'-bipyridilium dimethosulphate, both of which are sensitive to UV. The matrix may be PVA containing glyoxal and may be cross-linked by heat after coating.
Patent GB-1477331-A (GB)
Title: Ferrocene derivatives
IPC: C07F17/02
Filed: 1974-02-05
Abstract: 1477331 Ferrocene derivatives FISONS Ltd 31 Jan 1975 [5 Feb 1974 22 Feb 1974 14 June 1974 3 July 1974] 05258/74 8128/74 26387/74 and 29444/74 Heading C2J The invention comprises ferrocene derivatives of general formula wherein R is a thiophene ring, C 4-7  cycloalkyl, C 1-6  alkyl optionally substituted by one or more -OH groups, the group -CH 2 COOH or a (C 1-6  alkyl) ester or an unsubstituted or (C 1-6  alkyl)amide thereof, or a group of formula in which R 1 -R 5  are -H, halogen, C 1-8  alkyl, -COOH or a (C 1-10  alkyl)ester or an unsubstituted or (C 1-6  alkyl)amide thereof, C 1-8  alkoxy, -OH, C 1-10  alkanoyl, trihalomethyl, C 1-8  alkylsulphinyl, C 5-6  cycloalkyl, benzoyl or -NH 2 , or an adjacent pair of R 1 -R 5  together form a 3- or 4-membered methylene chain; n is 0, 1 or 2; R<SP>1</SP> is H, phenyl, C 1-6  alkyl, C 4-6  cycloalkyl or C 5-8  alkyl-cycloalkyl; x is 0-8 and y is 0-5, and where the compound of Formula I contains a -CO 2 H group, pharmaceutically acceptable salts thereof. The compounds are prepared by the following methods: (a) compounds of Formula I in which n is 0 by (i) reacting ferrocene substituted by -COCHR<SP>1</SP>(CH 2 ) x X (where X is an anion-forming group) with MS(CH 2 ) y R where M is -H or an alkali metal, or (ii) reacting ferrocene with a compound (where Hal is halogen) usually at - 25 to 45 C. under Friedel-Crafts reaction conditions; (b) where n is 1 or 2, by selective oxidation of a compound of Formula I in which n is O; (c) a compound of Formula I in which R is an unsubstituted or (C 1-6  alkyl)amide of -CH 2 COOH or at least one of R 1 -R 5  is an unsubstituted or (C 1-6  alkyl)amide of a -CO 2 H group by reacting a compound of Formula I in which respectively R is a -CH 2 COOH group or an ester or acid halide thereof, or at least one of R 1 -R 5  is -CO 2 H or an ester or acid halide thereof, with a C 1-6  amine or NH 3 ; (d) a compound in which R is -CH 2 COOH or at least one of R 1 -R 5  is -CO 2 H by hydrolysing a corresponding compound in which R is -CH 2 D or at least one of R 1 -R 5  is -D and D is an ester, acid halide, amide or nitrile group hydrolysable to a -COOH group; (e) when R is C 1-6  alkyl ester of -CH 2 COOH or at least one of R 1 -R 5  is C 1-10  alkyl ester of -CO 2 H by reacting a corresponding compound in which R is -CH 2 COOH or an acid halide or salt thereof or at least one of R 1 -R 5  is -CO 2 H or acid halide or salt thereof with a C 1-6  or C 1-10  alkanol respectively, or when a salt is used as reactant, with a C 1-6  or C 1-10  alkyl sulphate; or (f) when R<SP>1</SP> is C 1-6  alkyl by reacting a compound in which R<SP>1</SP> is -H with R<SP>11</SP>X where X is as above and R<SP>11</SP> is C 1-6  alkyl. The compounds have pharmacological properties and may be incorporated in pharmaceutical compositions together with adjuvants, carriers or diluents and possibly with other active components such as Vitamins B12 and C, folic acid, aspirin, an anthelmintic or an oral contraceptive.
Patent GB-577918-A (GB)
Title: Improvement in impregnated fibrous material, impregnant, and method of making the same
IPC: C08L91/00
Filed: 1944-03-21
Abstract: 577,918. Impregnating compositions. NEWTON, E. P. (Vellumoid Co.). March 21, 1944, No. 5284. [Class 91] [Also in Group VIII] An impregnating composition comprises a mixture of solvent-free bodied drying oil and chlorinated rubber, the latter not exceeding one half the amount of the oil by weight. Bodied tung oil or bodied dehydrated castor oil as described in Specifications 522,892 and 551,113 respectively; may be used but without the solvents of those Specifications. These oils may be used together with bodied alkali-refined linseed oil, and oiticica oil, alone or in combination with each other. The dry ground chlorinated rubber is slowly added to the bodied oil heated to a temperature less than bodying temperature, whilst knead ng and stirring. When tung oil or dehydrated castor oil are used, they may previously have been bodied as described in the above Specifications. When dehydrated castor oil is used compatibilizing agents are required, preferably esters and ketone's such as butyl acetate, "pent acetate," acetone, ethyl ketone, tricresyl phosphate, triphenol phosphate and tributyl phosphate. Fibrous sheet material, e.g., for gaskets, masking tape &c. may be impregnated with the compositions preferably heated to not over 180‹F.; the material is finally aged until gelation is complete.
Patent GB-951803-A (GB)
Title: Frequency measuring apparatus
IPC: G01R23/10
Filed: 1961-02-13
Abstract: 951, 803. Electric selective signalling systems. WESTERN ELECTRIC CO. Inc. Feb. 13, 1961 [Jan. 11, 1961], No. 5316/61. Heading G4H. In apparatus for calculating the product or quotient of two successively occurring frequencies, the first frequency f 1  is applied to one input of a gate 22 in control apparatus 19 through lead 14 and contacts A of switches 17, gate 22 being opened to pass the pulse train f 1  to counter 11 for a time determined by a preset input to time-base control apparatus 19 from a setting unit S. U. and the frequency of a standard pulse train applied to apparatus 19 over lead 18 and contacts A of switches 17. The count registered in counter 11 e.g. in five decimal denominations is entered into a relay store 28, and is then applied to apparatus 19 over contacts D of relay 31 to determine a new time base for a succeeding count. Counter 11 is reset. If f 1 /f 2  is to be determined, relay 16 is operated so that the standard frequency pulse train is applied to gate 22 over lead 21 and frequency f 2  determines together with the count stored in 28 the period for which the standard frequency pulses are supplied to counter 11. At the end of this period counter 11 registers f 1 /f 2 . If the product f 1 f 2  is to be calculated, relay 16 is not operated for the second count. The apparatus may be employed for calculating the voltage coefficient of resistance of a resistor by applying two different voltages to the resistor in a voltage dividing network and converting the voltage drops across the resistor to corresponding frequencies which are applied to the computer.
Patent GB-159813-A (GB)
Title: Improvements in or relating to staple making and driving machines
IPC: B25C5/04
Filed: 1921-02-16
Abstract: 159,813. Eveready Manufacturing Co. of Boston, (Assignees of Woodaman, C. B.). March 4, 1920, [Convention date]. Shearing; shear-blades.-A machine which cuts staples from a metal strip and drives them into sheets of paper, cloth, &c., such as of the type described in Specification 100,196, is provided with means to ensure a more uniform feeding of the strip, and with means which enable the rolls of strip to be more readily changed. Rolls 14, Fig. 2, of strip are mounted on a spindle 20 and surrounded by a casing 16 which is divided longitudinally so that the back half or disc can be removed from the spindle 20 and the roll renewed. The casing 16 is mounted on an arm 112 which slides between four sets of clips 110. The casing is slid backwards for removal. Metal strip 12, Fig. 4, is fed through an oscillating arm 40 which tends to feed more strip than is required, but the strip is stopped by an abutment 38. The strip is held between the arm 40 and a spring arm 44 secured at 46. The arm 40 is pushed backwards by a cam 48 and the spring 44 releases the strip, but as the arm again advances by the action of a spring 52 the strip is clamped by the spring 44 and fed forward until it is stopped by the aforesaid abutment 38. The spring 44 can be released to remove, small pieces of strip by a lever 116 pivoted at 120. The strip is fed to a fixed cutter 26, the face of which, as in the prior Specification, is at an angle to the strip. Movable cutters and benders 58<1>, 62, 58, Figs. 6 and 7, cut and bend the strip as shown without a former and drive it into the work. The edges D, D', Fig. 8, of the strip are cut away as shown to form prongs as described in the above-mentioned Specification.
Patent GB-266744-A (GB)
Title: Improvements in the treatment of crude nitrate of soda
IPC: C01D9/02
Filed: 1927-02-25
Abstract: 266,744. I. G. Farbenindustrie Akt.- Ges. Feb. 25, 1926, [Convention date]. Production of metal.-The residue which results on heating crude natural nitrate of soda to drive off the nitrogen oxides may be utilized in glass manufacture. To facilitate the release of nitrogen oxides, substances of acid character such as acid silicate or portions of the strata mined above, and below the deposit may be added to the law material.
Patent GB-910774-A (GB)
Title: Grilling oven
IPC: A47J37/06
Filed: 1959-02-16
Abstract: 910,774. Grilling-apparatus. WENGER, F. Feb. 16, 1959 [Feb. 18, 1958], No. 5385/59. Class 28 (1). A grilling-oven comprises a frame 20 displaceable in a housing 10 and containing two substantially horizontal food-holding grids 30, 31 with electric heating elements 60, 61 parallel to and respectively above and below the grids. At the opposite ends of grids 30, 31 are respectively tangs 34, 35 and pins 38, 39. Pin 39 and tang 35 engage in channels at the top of rear and front uprights 45, 46 secured to carrier 44 and forming frame 20. A column 47, spring biased downwardly, slides on upright 45 guided by pins and carrying a tongue 51 with a bearing to receive pin 38. The front oven wall 40 is attached to handle tang 33 and the lower heating element is carried on frame 20 which has wheels 43 running on slightly sloping rails 12 in housing 1. As frame 20 runs out of housing 10, grid 30 is either lifted by a pair of guides 70 or by a pair of hooks 72 (one of each is shown respectively on the left and right in Fig. 1) which engage pins 71 on the grid. Element 60 is adjustable for example by being mounted on a frame 120 suspended by links 121 pivoted to bell-crank levers 122 connected by a bar 125 and operated by a lever 126. Frame 120 may be latched in position. The frame 20 may be held in the housing 10 by a spring-biased coupling pin 130 mounted on the carriage and having a conical head 134 with a shoulder 135 which engages a catch in the housing 10. This catch comprises a pivoted arm 137 and a yoke 139 forming a window 40 with upper and lower offset edges 141, 142. The edge 141 engages pin 130 until the time switch 81 is set and the solenoid operating arm 137 is energized when edge 142 engages head 135. When the preset broiling time has elapsed, the latch 137, 139 drops and carriage 20 is released to roll out of the housing. Alternatively, the catch may comprise an apertured bowed member. The broiling time may be calculated from the thickness of the food as indicated on scale 74 by tang 34 of handle 32. In operation, the thermostat is switched in by switch 82 and set by switch 83, and the grids 30, 31 are preheated. Frame 20 is pulled out of the housing, the meat is placed between the grids and the cooking time is read off scale 74. Time switch 81 is set, the thermostat being cut out, and after the set time the frame 20 is released and runs out of housing 10. Whenever frame 20 is outside the housing and elements 60, 61 are receiving full current, a further switch is operated to cut or diminish the current supply to elements 60, 61.
Patent GB-1069349-A (GB)
Title: Apparatus for and method of gas transmission
IPC: F17D1/02
Filed: 1966-02-08
Abstract: 1,069,349. Conveying liquefied gas. M. DIMENTBER. Feb. 8, 1966, No. 5449/66. Heading F4P. Transfer of natural hydrocarbon gas from a source to a distant receiving station is effected by liquefying and sub-cooling at a plant (2), Fig. 1 (not shown), forcing it by a pump (7) through thermally insulated pipelines (8) buried below ground and leading to a pumping station (30) where the liquid is recooled and repressurized and forced through further pipelines (8) to the receiving station where the liquid gas is either transferred through a valved pipe (92) to a tanker ship or is revaporized and fed to a gas distribution system. At a pumping station the liquid gas is throttled at (11), Fig. 2 (not shown) into a flash chamber (12), a portion of the resulting cooled vapour is withdrawn through a valved pipe (32) compressed at (33), liquefied in an ethylene-cooled condenser (35) and fed through a pipe (36) to a chamber (22) where it is mixed with liquid withdrawn from chamber (12) by a pump (17) delivering through a pipe (18) and spray (19). The resulting sub-cooled liquid is then forced by a pump (21) through further pipe-lines (8) to the next pumping station or to the terminal. Compressor (33) and pumps (17, 21) are driven by gas engines (37, 16, 20) respectively and which are controlled by means (13) responsive to temperature in chamber (12), means (14) responsive to liquid level in chamber (12) and means (23) responsive to liquid level in chamber (23). Fuel, for the engines (37, 16, 20) and for engines (37 to 40) driving of a conventional cascade refrigeration system is withdrawn from vapour pipe (29) through a pipe (58) and heated exchangers (59, 63). At the terminal liquefied gas when vaporized passes through a pipe (72) to a vaporizer (73) warmed by a burner (76) in a branch (75) of pipe (72). The resulting vapour is further warmed in an exchanger (83) heated by a burner (86) and passed into a distributing pipe (70). A mixture of liquefied gases, e.g. methane and propane, may be transmitted through the pipe-lines, the propane being subsequently reheated at vaporizer (73). The pipe-lines (8) may also be used to transmit different liquids separated by impervious plugs.
Patent GB-525349-A (GB)
Title: Improvements in or relating to devices for containing and dispensing fluids
IPC: A62C13/00
Filed: 1939-02-18
Abstract: 525,349. Fire - extinguishers. MACKAHAN, R. E., CORCORAN, T. D., HARD, M. W., and SAFFELL, H. V. Feb. 18, 1939, No. 5476. Convention date, Nov. 15, 1938. [Class 47 (ii)] [Also in Group XXVIII] A fire - extinguisher or other device for discharging fluid under pressure, comprises a container 10 with a neck 13 closed by a cup-shaped cap 14 and a dip tube 15, extending to the bottom of the container and projecting laterally to provide a nozzle f which is protected by a cover 16 and is sealed by a diaphragm 17 soldered thereto and having an extended strip provided with a ring 19, whereby the diaphragm can be torn off to bring the extinguisher into use. In a modification, the diaphragm is integral with the cover 16. Specification 525,228 is referred to.
Patent GB-672138-A (GB)
Title: Improvements in or relating to fasteners for straps
IPC: A44C5/24
Filed: 1949-03-01
Abstract: 672,138. Bracelets. GRUNBERGER, K. Jan. 26, 1950 [March 1, 1949], No. 5593/49. Class 43. [Also in Group XXV] A strap fastener comprises a box-like housing 4 in which the strap end is received snugly to be secured by a detachable screw 12 or the like which engages a hole 13 in the strap. The screw 12 may be screwed into a sleeve which traverses the housing and goes through the hole in the strap. The housing may be bent from strip metal. The closed end of the housing may be hingedly connected to one link 2 of a folding link clasp 1, 2, pairs of ears 9, 10 on the links 2, 1 respectively, being arranged to snap one between. the other to close the clasp.
Patent GB-1181065-A (GB)
Title: Load Cells
Inventor: BOADLE CAMPBELL DEAN
IPC: G01L1/22
Filed: 1966-02-09
Abstract: 1,181,065. Load cells. C.D. BOADLE and R.A. ATKIN [trading as WESTERN PRECISION EQUIPMENT] Feb.8, 1967 [Feb. 9, 1966], No.5690/66. Heading G1N. A load cell comprises four strain gauge resistors 6 Fig. 1 mounted on a steel beam 2 supported at two knife edges 4, 5. The load is applied via a button 12 and rod 16 to a plate 10 supported on the beam 2 by a further two knife edges 7, 8. The unit is located in a sealed box 18 with the button 12 centrally in the lid, supported by a diaphragm 14. A second diaphragm may be provided at the bottom of the cell body. The inside of the housing 18 is vented to the atmosphere through a dust filter 22, a moisture difuser comprising a long small-bore tube 24, and a drying agent. The strain gauges are connected in a bridge network.