baber/WOPTO huggingface dataset:
Patent GB-206030-A (GB)
Title: A window cleaning machine
IPC: A47L1/03
Filed: 1922-11-24
Abstract: 206,030. Linton, W. Nov. 24, 1922. Windows, cleaning.-A machine for cleaning both sides simultaneously comprises a hollow base 1 having a cover comprising a fixed part 3 upon which the window sash is adapted to rest, and two movable platforms 2, 4. The base is supported outside and inside the window by brackets 5, 7 respectively and the movable platforms 2, 4 carry hinged uprights 20, 23 adapted to be fixed in the vertical position by pins 22, 22a passing through holes in the uprights and in brackets 26, 3. Slides 27, 28 are arranged in channels in the uprights and connected by wires with pulleys freely mounted on a shaft 12 carried by the bracket 9 but able to be clutched to the shaft by operating a lever 17, the wires also passing around pulleys at the top of the uprights. The slides carry detachably crossbeams 39, 38 each having two cleaner-carrying slides 44, 44a, 45, 45a arranged for horizontal movement along it and operated by wires which pass over idle pulleys at the ends of the beams and are carried through the uprights and connected to pulleys fixed to the shaft 12. Each of the slides has two wires which are wound round the pulleys in opposite directions so that the slack is taken up continually. After the platforms 2, 4 have been arranged so that the cleaning pads press upon the glass the shaft 12 is turned by a handle 19 and by combining the vertical and horizontal movements of the slides by means of the clutch, the cleaning pads 62 are moved over the window.
Patent GB-519504-A (GB)
Title: Improvements in or relating to brush gear for electric motors
IPC: H02K5/14
Filed: 1938-11-07
Abstract: 519,504. Motor brush-gear. BLACK & DECKER MANUFACTURING CO. Nov. 7,1938, No. 32187. Convention date, July 19, 1937. [Class 35] [Also in Group XXII] In a portable rotary hand tool, such as a drilling machine, an electric motor has a rear bearing for the rotor shaft mounted in a housing supported by the field casing, the brush support being of convex formation and enclosing the housing and having positioning means extending in the direction of the motor axis to engage externally exposed surfaces on the field casing. The machine comprises a motor casing 3, to which are attached a gear casing 2 and a handle 4 by means of screws 37, 64 respectively. The motor shaft 9, is mounted in a front bearing 45 in a plate 45' inserted between the gear and motor casings and carries a pinion 21, driving the tool, spindle 4' through double reductions gearing 22, 24. The tool spindle is mounted in a roller bearing 39 in the plate 45<1> and also in a ball journal and thrust bearing 29, which is clamped in the nose 30 of the gear casing by a cap 33 screwing on the nose. A chuck 28 is secured at 27 on the spindle, and on removal of the chuck and cap 33, a different rotary tool attachment may be secured to the gear casing. A fan 10 on the motor shaft draws cooling air through openings in the handle 4 and expels it through openings 11 in the motor casing, the inlet openings being protected by screens 17, Fig. 9, carried by buttons 18 which are a press fit in the handle for easy removal. Motor brush-holders.-The brushes 58, Figs. 8 and 9 are slidable in holders under the action of coiled springs 61 and the holders are attached by screws, rivets &c. 60 to a support 40, made of insulating material which has shoulders 46, 47 forming a push fit on the flat surfaces 49 of an integral extension 55, Fig. 3, of the motor casing 3, in which the rear bearing 43 is mounted.. The shoulders 46 locate the brushes circumferentially and the arcuate surfaces 51 of the support are held against the surfaces 52 of the extension 55 by means of projections 57' on the handle 4 in order to locate the brushes axially.
Patent GB-1304424-A (GB)
IPC: C25D3/48
Filed: 1970-07-02
Abstract: 1304424 Gold or gold alloy electro-plating baths ENGELHARD MINERALS & CHEMICALS CORP 2 July 1970 [3 July 1969] 32276/70 Heading C7B Gold or gold alloy electro-plating baths comprise an aqueous solution of ammonium gold cyanide; are substantially free of alkali metal ions; and contain an additive, e.g. phosphoric acid, sulphamic acid, citric acid, tartaric acid or sulphuric acid, or ammonium salts thereof, to maintain the pH in the range 5-8 and to improve the conductivity of the bath. The bath may include brighteners and levelling agents; and compounds of Ag, Zn, Cd, Sn, Pb, As, Sb, Hg, Co or Ni, which may or may not co-deposit with the gold may be present. The bath may be used in barrel, rack or strip plating; or in electro-forming. Production of the bath may involve passage of alkali metal gold cyanide solution over ammonium cation exchange resin to produce ammonium gold cyanide.
Patent GB-865586-A (GB)
Title: Improvements in or relating to magnetic cores having gaps
IPC: G11B5/235
Filed: 1957-10-17
Abstract: 865,586. Magnetic recording and reproducing heads. TELEFUNKEN G.m.b.H. Oct. 17, 1957 [Oct. 17, 1956], No. 32457/57. Class 40 (2). In a magnetic recording or reproducing head the core has at least one gap the width of which is determined by a gap spacer formed from a sheet of suitable material (preferably glass) which has been made by a glass-blowing technique. The wall thickness of the bubble is determined by viewing its apparent colour when white light is incident thereon and a section of the wall having the required thickness is selected. The method is stated to be suitable for producing gap spacers of less than 2 microns thickness.
Patent GB-1261378-A (GB)
Title: Improvements relating to the encapsulation of semiconductor devices and other electrical components
Inventor: GUMM BRIAN JAMES
IPC: H01L23/29
Filed: 1968-07-08
Abstract: 1,261,378. Semi-conductor devices. INTERNATIONAL RECTIFIER CO. (GREAT BRITAIN) Ltd. 8 July, 1969 [8 July, 1968], No. 32467/68. Heading H1K. In a method of encapsulating an electrical component the component 2 has a layer 3 of varnish applied to it and is then coated with a layer 4 of a flexible compound after which it is embedded in an outer rigid casing 5 applied in a mould, the flexible compound where it coats the leads 1 of the component projecting through this outer casing. The flexible compound may be sprayed on as a solution of silicone rubber in toluene and the outer moulded easing may be of epoxy resin.
Patent GB-863106-A (GB)
Title: Method of making synthetic plastic hose pipes
IPC: B29C53/60
Filed: 1958-10-14
Abstract: 863,106. Flexible hoses. TITEFLEX Inc. Oct. 14, 1958 [Oct. 31, 1957], No. 32496/60. Divided out of 863,105. Class 99(2). A synthetic plastic hose is made by wrapping on a mandrel a helix of plastic strip material which is subjected to high temperature heat treatment as one step of the process of manufacture, and a layer of foil, e.g. of aluminium or copper, is interposed between the mandrel and the strip, the foil being lubricated to facilitate stripping the hose from the mandrel by maintaining a coating of plastic, e.g. polytetrafluoroethylene, between the mandrel and the foil. The latter may be coated with a film of plastic on the side thereof that contacts the mandrel. A strip of woven glass fibre impregnated with polytetrafluoroethylene may be applied over the hose and the hose corrugated, after which the plastic material is heat treated and the foil removed.
Patent GB-1341542-A (GB)
IPC: B65G7/00
Filed: 1972-07-12
Abstract: 1341542 Ground effect transportation system' BERTIN & CIE 12 July 1972 [12 July 1971] 32561/72 Heading B7K A ground-effect transportation system, such as a load-handling pallet or a platform, comprises a source of pressurized fluid and a device 26 for connecting the source to a cushion area and for matching the pressures, the device including a conduit 21 comprising a first portion 21a communicating through a thin-walled aperture 27 with a second, downstream portion 21b of greater cross-section area. The portion 21b is advantageously a parallelepipedal box and is succeeded by a third portion 21c of smaller cross-section connected to a cushion-containing structure 17, several of which are fixed to a chassis 14. The ratio P 1 /P 2  between the pressures of the source and the cushion is greater than the critical ratio at which flow through the aperture 27 becomes sonic. #P 2 /#Q is negative, (Q being the rate of flow through the aperture), so that the installation is self-stabilizing in respect of variations in cushion leakage. (For Figure see next page.)
Patent GB-845552-A (GB)
Title: Pyrimidine derivatives
IPC: C07D487/04
Filed: 1956-10-25
Abstract: The invention comprises (a) 5-hydroxy-7-methyl-s-triazolo (3,4-a) pyrimidines of the general formula:  <FORM:0845552/IV(b)/1> where R represents an unsubstituted or carboxylsubstituted alkyl or aryl group; (b) the preparation of compounds (a), and of the compound of formula I in which R represents hydrogen, by thermal cyclization of 2-acylhydrazino-4-methyl-6-hydroxypyrimidines of the general formula: <FORM:0845552/IV(b)/2> (c) the combination of (b) with the preparation of the compounds of formula II by acylation of 2-hydrazino-4-methyl-6-hydroxypyrimidine by the following methods: (i) when R is hydrogen, heating with concentrated formic acid, (ii) when R is other than hydrogen, heating with the appropriate acid chloride or anhydride in the presence of pyridine; (d) therapeutic compositions containing the compounds (a) or the products of (b) or (c) (see Group VI).  Cyclisation is accomplished by heating to 220-280 DEG  under reduced pressure in an inert atmosphere or, when R = -CH3 or -CH2CH2COOH, by refluxing in glacial acetic acid for some hours. when R = -C6H4.COOH, cyclisation occurs directly during the preparation of the acyl intermediate.  The preparation of the following is described in the examples: 5-hydroxy-7-methyl-s-triazolo (3,4-a) pyrimidine, 5-hydroxy-3,7-dimethyl-s-triazolo (3,4-a) pyrimidine, [5-hydroxy-7-methyl -s-triazolo (3,4-a) pyrimidine]-3-b -propionic acid, 3-phenyl-5-hydroxy-7-methyl-s-triazolo (3,4-a) pyrimidine and [5-hydroxy-7-methyl-s-triazolo (3,4-a) pyrimidine] - 3 - o - benzoic acidtogether with the following intermediates:2-formyl, hydrazino-4-methyl-6-hydroxypyrimidine, acetylhydrazino-4-methyl-6-hydroxypyrimidine, 2-succinylhydrazino-4-methyl-6-hydroxypyrimidine and 2-benzoylhydrazino-4-methyl-6-hydroxypyrimidine. 2-Hydrazino-4-methyl-6-hydroxypyrimidine is prepared by condensing 2-methylthio-4-methyl-6-hydroxypyrimidine with hydrazine hydrate in ethanol, and is characterised by refluxing with acetone to form 2-isopropylidene-hydrazine-4-methyl-6-hydroxypyrimidine.ALSO:Therapeutic compositions comprise, in admixture with a therapeutically acceptable carrier, at least one 5-hydroxy-7-methyl-s-triazolo (3,4-a) pyrimidine of the general formula <FORM:0845552/VI/1> wherein R represents a hydrogen atom or an unsubstituted or carboxyl-substituted alkyl or aryl group.  The said compound, which possesses antitumoral activity, may be made up in solution or suspension in liquids, including oil bases, for injection, in tablets or capsules for oral administration, or in bases suitable for topical administration.
Patent GB-324980-A (GB)
Title: Improvements in and relating to fuel pumps for internal combustion engines
IPC: F02M59/30
Filed: 1928-11-08
Abstract: 324,980. Hemmingsen, T. V. Nov. 8, 1928. Cam - and - leveractuated pumps; rods and rod guides; timing devices.-A fuel pump for internalcombustion engines is actuated by a cam 9, lever 5 and rods 4, and the cam roller 8 is adjustable on the lever to vary the moment at which delivery begins. The roller 8 is carried by a block 12 slidably mounted on the lever 5. In the form shown in Fig. 4, the roller 8 is mounted on a member 32 slidably connected to a lever 35 pivoted on a crank 36. The member 32 has an inclined surface engaging a similar surface on a block 38 which may be adjusted by a screw 39 in a recess in the lever 35 to move the roller 8 relatively to the cam 9 and lever 35.
Patent GB-837212-A (GB)
Title: Improvements in gating circuits employing saturable magnetic cores
Inventor: BONN THEODORE HERTZ
IPC: H03K19/16
Filed: 1956-10-26
Abstract: 837,212. Magnetic amplifiers. SPERRY RAND CORPORATION. Oct. 26, 1956, No. 32745/56. Class 40 (9). Two load impedances are connected in series with a source of spaced power pulses, one of the loads being shunted by at least two windings of two saturable cores, each of which has a control winding such that by changing the state of one or both cores between power pulses the pulses may be switched from energizing one load to energizing the other. In Fig. 4, load 40 is shunted by windings of saturable cores 42 and 43 in series. If both cores are saturated to present low impedance to pulses from the source PP load 40 is by-passed and an output appears across load 41. If during an interval between pulses from PP one or other of the cores is switched by a Source SS to present high impedance to source PP, load 40 becomes energized and load 41 is cut-off. Rectifier 34 and negative potential source 32 isolates load 41 when load 40 is energized. A pulse from PP as well as energizing load 40 also returns the switched core back to its initial state. If both cores 42 and 43 were switched together, the pulse from PP would be insufficient to reset both cores. Both cores may be restored if additional windings are provided in parallel with the windings 45 and 47, but not in series with load 41 or in shunt with load 40. If the additional windings are in series with a high resistance so that the current drawn from source PP is substantially constant, either one or both cores can be switched in the space of one pulse. As shown in Fig. 9, the load 40 may be shunted by windings in parallel in which arrangement both cores. must be switched to energize load 40. Any parallel series connection of any number of windings may be used to shunt the load 40 and additional load impedances may be included in the series shunt circuits, see Figs. 10, 11, not shown. Some of the cores may carry two windings in the path of pulses from PP, one of the windings being in shunt with one load and the other being in shunt with another load while each has its separate series circuit, see Fig. 12, not shown. The control windings may be continuously biased to reverse the core states unless inhibited by an input signal.
Patent GB-1040648-A (GB)
Title: Sail
IPC: B63H9/10
Filed: 1964-08-12
Abstract: 1,040,648. Sails. MANCHESTER YACHT SAILS Inc. Aug. 12, 1964 [Jan. 13, 1964], No. 32885/64. Heading B7V. A sail 14 (Fig. 1, not shown) is provided with furling means 34 comprising two elongate spaced but interengageable fastening means 36, 38 which, when engaged, e.g. by the action of a slider 46, are adapted to retain the area of sail between them in the form of a tubular container 60 (Fig. 3, not shown) for the gathered body of the sail but which are quickly disengageable for unfurling of the sail.
Patent GB-1062427-A (GB)
Title: Locating apparatus
IPC: G01D5/347
Filed: 1964-08-14
Abstract: 1,062,427. Machine tool details &c. R. I. SATTLER. Aug. 14, 1964 [March 9, 1964], No. 33145/64. Heading B3B. [Also in Divisions G1 and G4] Locating apparatus comprises a first remotely readable scale extending along a first axis X-X and having a visible screen read-out 57, a first reference scale 64 parallel to the other scale, and a second pair of such scales Y-Y, 62, at rightangles thereto, each of the scales having a zero reference point and being adjustable to locate the position of the reference point relative to a fixed point. Verniers 38, 36 moving along the scales 64, 62 are secured to pulse counters 54, 44 working in conjunction with light-sensitive elements and gratings on the scales. The zero readings of the scales co-incide with the centre of a first hole A to be machined. A similar vertical pair of scales 66 is also provided. In operation, the scale 62, for instance, enables the operator initially to position the tool approximately and provides a continuous visible check. The scale 62, Fig. 2 (not shown), comprises an endless belt running over rollers in adjustable mountings 99 and clamped in an adjusted position by a screw and washer 95. Scales on the belt extend in opposite directions from a zero point.
Patent GB-1059606-A (GB)
Title: A ringer
IPC: H04M19/04
Filed: 1965-08-04
Abstract: 1,059,606. Substation circuits. SOC. ITALIANA TELECOMUNICAZIONI SIEMENS S.p.A. Aug. 4, 1965 [Aug. 25, 1964], No. 33309/65. Heading H4K. In a substation circuit, the oscillations from a transistor oscillator which is adjustable as regards frequency and output level are modulated by rectified ringing current and fed to a transducer to emit a characteristic calling signal.
Patent GB-1476790-A (GB)
Title: Semiconductor device including an insulated gate field effect transistor and method for its manufacture
IPC: H01L21/32
Filed: 1974-07-29
Abstract: 1476790 Semi-conductor devices RCA CORPORATION 29 July 1974 [30 July 1973] 33315/74 Heading H1K An IGFET comprises a body 14 of monocrystalline silicon having a first surface 15 from which projects a mesa 18 with a second surface 20 on which are formed an insulating layer 32 and an electrode layer 34 of conductive polycrystalline semi-conductor material, the mesa 18 being contiguously surrounded by a single layer 36 of insulating material having a surface 38 which is at least as far from the surface 15 as the outer planar surface 35 of the conducting layer 34. The proximity of the surfaces 35, 38 permits connection of crossover conductors in an integrated circuit. An oxygen-permeable silicon nitride layer 42, a silicon dioxide gate insulating layer 32 and a polysilicon gate layer 34 are formed over the channel region and the insulating layer 36 is thermally grown over the source and drain regions 22, 24. The silicon nitride layer 42 is removed for making the desired connections.
Patent GB-652205-A (GB)
Title: Improvements in or relating to boilers for hot water circulation systems
IPC: F24H1/44
Filed: 1948-12-30
Abstract: 652,205. Hot-water boilers. MAXEN, R., and MOORE, Ltd., W. & E. Dec. 30, 1948, No. 33511. [Class 64(i)] A hot-water boiler comprises a vertical cylindrical firebox 1, a surrounding casing. 2 which forms a water jacket around the front, sides and top of the firebox and a main boiler 7 at the rear, two sets of flue tubes 12, 14, connecting a smoke box 13 near the bottom of the main boiler 7 to a box 11 opening into the firebox and to the main flue 16, transverse water tubes 17 extending through the rear upper part of the firebox, and short tubes 6, fitted with doors 5, connecting the front of the casing with the front of the firebox wall. According to the Provisional Specification, the flue tubes 12, 14, may be replaced by a wide U-shaped duct, or by U-shaped tubes which open independently into the firebox.
Patent GB-521515-A (GB)
Title: Novel or improved safety device for use with hoists
IPC: B66B1/08
Filed: 1938-11-19
Abstract: 521,515. Safety-suspenison apparatus for lifts. AUSTIN MOTOR CO., Ltd., KING, Ltd., G. W., and HALL, L. H. Nov. 19, 1938, No. 33676. [Class 78 (iii)] When the suspension rope A breaks, the auxiliary chain B takes up the strain and tends to raise the comparatively light balance weight b, which resists the action sufficiently to cause the chain sprocket D to be pulled downwards by compressing the springs J. This brings the teeth G of a ratchet wheel on the sprocket shaft into register with a fixed block M and so prevents further rotation of the chain wheel. In the depressed position a spring plunger N, Fig. 6, enters a slot P in the guides and prevents the chain wheel structure from rising again until positively released. The downward movement may operate a switch to cut out the hoisting motor at the same time.
Patent GB-1502160-A (GB)
Title: Photographic film cassette
IPC: G03B17/30
Filed: 1975-08-14
Abstract: 1502160 Film cassettes PENTACON DRESDEN KAMERA-UND KINOWERKE VEB 14 Aug 1975 [20 Aug 1974] 33912/75 Heading B8M Part B  A film cassette comprises delivery and take-up chambers 1 and 2 connected by a rigid bridge or web 3 which has a depression 6 through which a (claw) feed member (not shown) may operate. The depth t of depression 6 is less than the thickness d of the bridge and the length thereof is at least equal to the distance c between consecutive holes 5 of the feed perforation of the film.
Patent GB-775874-A (GB)
Title: Improvements in the treatment of polymeric materials
IPC: B29C35/08
Filed: 1953-12-07
Abstract: A material selected from copolymers of butadiene and styrene, copolymers of butadiene and acrylonitrile, polyacrylic acid esters, polychloroprene and polystyrene is converted to the infusible and insoluble state by irradiation with high energy electrons, using a dosage of at least 3 X 106 R. Specification 665,263, [Group V], is referred to.ALSO:A material selected from copolymers of butadiene and styrene, copolymers of butadiene and acrylonitrile, polyacrylic acid esters, polychloroprene, polystyrene and natural rubber is converted to the infusible and insoluble state by irradiation with high energy electrons, with a dosage of at least 3 X 106R. Specification 665,263 is referred to.ALSO:Rubber is converted to the infusible and insoluble state by irradiation with high energy electrons, with a dosage of at least 3x106R.  Specification 665,263 is referred to.
Patent GB-1013046-A (GB)
Title: Diaryl ether sultams
IPC: C07D291/08
Filed: 1962-09-05
Abstract: The invention comprises compounds of the formula <FORM:1013046/C2/1> wherein R is hydrogen or an alkyl radical of 1-4 carbon atoms, X is NO2, NH2, NH-acyl, NH-SO2-alkyl, NH-alkoxycarbonyl or halogen, Y is hydrogen and may also be halogen if X is NO2 or halogen, Z is hydrogen or halogen, m is 1-3 and n is 1-4.  The compounds wherein X is NO2 and (Y)m and (Z)n have the above meanings and R is hydrogen are made by heating the appropriate 2-halo-5-nitro-benzene sulphonic acid halide with the appropriate 2-amino-phenol in the presence of an acid binding agent, e.g. basic organic solvents or aqueous solutions of inorganic bases. These compounds in which R is hydrogen or an alkyl group and (Y)m and (Z)n have the above meanings and X is NH2, NH-acyl, NH-alkoxycarbonyl or NH-SO2-alkyl are made by reducing the corresponding compound in which X is NO2 and optionally reacting the amino group with a carboxylic anhydride, a dialkyl pyrocarbonate or an alkane sulphonic acid halide.  Those compounds wherein X is halogen and R, (Y)m and (Z)n have the above meanings are made by reacting the compound in which X is NH2 with nitrous acid and a cuprous halide, also the compounds wherein X, (Y)m and/or (Z)n are chlorine may be made by chlorination, with known reagents, of the compounds wherein X is chlorine and (Y)m and/or (Z)n are hydrogen. The compounds wherein R is an alkyl group and X is NO2, NH2, NH-acyl, NH-alkoxycarbonyl or halogen and (Y)m and (Z)n have the above meanings are made by alkylation, with known reagents, of the corresponding compound wherein R is a hydrogen atom.  The compounds are used as pesticides (see Division A5) and are particularly active against keratin pests (see Division D1).ALSO:Diphenyl ether sultams of the formula <FORM:1013046/A5-A6/1> wherein R is hydrogen or an alkyl group of 1-4 carbon atoms, X is NO2, NH2, NH-acyl, NH-alkoxyl carbonyl, NH-SO2-alkyl or halogen, Y is hydrogen, and when X is NO2 or halogen may also be halogen, Z is hydrogen or halogen and n is 1-3 and m is 1-4 exhibit general pesticidal activity. They can be employed in concentrations of 0.00001-1% by weight diluted with solid or liquid carriers, e.g. talc, chalk, bentonite and clay, water, alcohols, ketones and liquid hydrocarbons.  They may be used with known insecticides and/or fertilisers.