baber/WOPTO huggingface dataset:
Patent GB-847407-A (GB)
Title: Improvements in or relating to unsaturated polyesters
IPC: C08G63/54
Filed: 1957-10-21
Abstract: Unsaturated polyester resins are made by esterifying a tri- or higher benzene polycarboxylic acid with a monohydric and a polyhydric alcohol, using the monohydric alcohol in such an amount as to effect partial esterification of the benzene polycarboxylic acid to leave an average of approximately two carboxyl groups per molecule of the acid free for esterification by the polyhydric alcohol, and intercondensing the condensation product with an unsaturated aliphatic dicarboxylic acid.  Specified benzene polycarboxylic acids are trimellitic, trimesic and pyromellitic acid and specified monohydric alcohols are methanol, ethanol, propanol, butanol, amyl alcohol, hexanol, octanol, benzyl alcohol, and phenylethanol.  In examples (1) A hydroxyl group-containing condensate made by esterifying pyromellitic acid with a mixture of butanol and ethylene glycol was polyesterified with maleic anhydride and the product copolymerised with styrene in the presence of benzoyl peroxide and cobalt naphthenate ; (2) A partial ester made by esterifying pyromellitic acid with benzyl alcohol in the presence of butanol was polyesterified with a mixture of ethylene glycol and maleic anhydride and the product copolymerised with styrene in the presence of benzoyl peroxide.
Patent GB-799279-A (GB)
Title: Improvements in or relating to soap compositions
IPC: C11D10/04
Filed: 1955-11-16
Abstract: Soap compositions, which may be in the form either of tablets or of solutions, contain as the essential ingredient a soda or potash soap, or mixtures of such soaps, and a minor proportion, preferably 1-25 per cent in the case of solutions and 0.1-10 per cent in the case of tablets, of a compound of the formula: <FORM:0799279/III/1> wherein x is 0-25, y is 0-50, the total molecular weight is 1500-6500, and R is either -C2H4OH or -C3H6OH, the compound having 50-100 per cent of ethylene oxide present in the molecule when mixed with potash soaps and mixtures of potash and soda soaps, and 0-95 per cent of ethylene oxide in the molecule when mixed with soda soaps. Perfumes, colouring agents, bactericides such as 2:21 - dihydroxy - 3:5:6:31:51:61 - hexachlorodiphenyl - methane ("hexachlorophene"), opacifiers such as titanium dioxide, sodium palmitic methyl tauride, petrolatum and mineral oils may also be incorporated.  The compounds referred to, which are obtainable from ethylene diamine and ethylene oxide and (or) propylene oxide, are said to improve the sudsing properties of tallow soaps, and to increase the resistance of tablets to cracking.
Patent GB-1074311-A (GB)
Title: A stressed concrete structure
Inventor: FRENCH ERIC LIONEL
IPC: D07B1/14
Filed: 1962-08-27
Abstract: 1,074,311. Prestressed concrete. TAYLOR WOODROW CONSTRUCTION Ltd. Aug. 26, 1963 [Aug. 27, 1962], No. 32883/62. Heading E1W. A method of providing a stressed concrete structure comprises providing wire or cable in a duct in a concrete structure, tensioning the wire or cable to stress the structure and completely filling the duct with a material consisting of or containing a corrosion inhibitor after positioning the wire or cable in the duct. A material consisting of or containing a vapour-phase inhibitor may be in the duct. The ends of the duct may be closed, e.g. with mastic or polyurethane foam. preferably before filling the duct, the material being introduced by a tube through at least one closure. The inhibitor is preferably cyclophenylamine carbonate, and it is preferably mixed with a petroleum jelly based compound which may include a thisatropic additive. The wire or cable may have been previously coated with a finely-divided mixture of wax or resin and corrosion-protector, e.g. tannin, by electrostatic spraying.
Patent GB-1483212-A (GB)
Title: Machine tool fault indicator
IPC: B24B5/42
Filed: 1974-07-25
Abstract: 1483212 Automatic control LANDIS TOOL CO 25 July 1974 [26 July 1973] 32952/74 Heading G3N [Also in Division B3] A machine tool e.g. a grinding machine, includes a plurality of sequentially selected displaceable machine mechanisms, a sensor associated with each mechanism for signalling the completion of a selected displacement thereof, and a fault indicator for each displacement sensor energized in dependence upon the signal from the sensor, for example to indicate a fault if the selected displacement of a particular mechanism is not completed in a preset time.  In the embodiment, for grinding a crank-pin, the work is supported by rest 45 between headstocks 23R, 23L. After starting, and provided the headstocks have reached a pre-set speed, grinding wheel 15 is moved forward at a predetermined rate using a stepping motor, and grinding continues until a feeler (145), Fig. 3 (not shown) on rest 45 determines that the workpiece is at a desired size, when the rest is lowered and grinding wheel 15 retracted. The carriage 13 is then moved to position another crank-pin with respect to the grinding wheel, and the grinding cycle is repeated until each crank-pin is at the desired size, when the machine is stopped. Limit switches e.g. 115, 159 on the movement of the grinding wheel 15 are used in a relay switching circuit, Figs. 7 to 9 (not shown) to ensure that the machine is started only when certain initial conditions are met, otherwise a fault indication is given. At the start of each operation in the grinding cycle a timer is set. This timer is reset if the operation is completed in a pre-set time; otherwise the timer times out, a fault indication is given and the machine stopped. The sequence of operations is set in a controller, in which the feed rate of the grinding wheel and the desired speed of the crankpin can be set.
Patent GB-1569452-A (GB)
Title: Conduction-coled circuit package and method of fabrication
IPC: H01L23/433
Filed: 1977-08-05
Abstract: A method for making a circuit package which exhibits an excellent heat transfer path from a semiconductor chip or other heat generating device to the heat sink can or cover of the package. A heat conducting pad is placed in proximate relationship to either the heat sink or to a surface of the chip and is metallurgically bonded to the other. In one of the preferred embodiments a low melting point solder, such as indium or an alloy thereof, is metallurgically bonded to the inside of the heat sink cover in a limited central region thereof. The solder is then positioned adjacent the chip and reflowed to substantially fill in the gap between the solder and the chip, but with no stress between the chip and the solder. The assembly exhibits excellent heat transfer from the chip to the cover and any associated heat dissipating structures. The preferred method involves the reflow of a mass of solder against the back side of the chip, which has previously been solder-bonded on the front side to conductors on the surface of an alumina substrate.
Patent GB-1409346-A (GB)
Title: Propeller guard
IPC: B63H5/14
Filed: 1973-07-11
Abstract: 1409346 Propeller guard A M LIAAEN AS 11 July 1973 [12 July 1972] 33037/73 Headings B7V and B7S A propeller guard comprises a nozzle 5 secured to a ship's hull 1 and surrounding ship's propeller 4. At least two fins such as 9, 10, 11 are secured by their fore ends to the hull on respective sides of the hull, the fins being so shaped that their fore edges slope outwardly from fore to aft. The aft ends of the fins are secured to the fore end of the nozzle. In the embodiment shown tube 12 extends along skeg or heel 2 for the supply of vapour or hot gas to loosen ice which may enter the nozzle.
Patent GB-757105-A (GB)
Title: Improvements in or relating to shaft-position determining apparatus
Inventor: MCAUSLAN JAMES HAY LOUDON
IPC: G01P13/02
Filed: 1953-11-30
Abstract: 757,105. Shaft-position signalling systems. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Nov. 3, 1954 [Nov. 30, 1953; April 9, 1954], Nos. 33156/53 and 10478/54. Class 40(1) [Also in Group XL(b)] The movement of a shaft, e.g. of a weighing machine is measured by means operated by rotation of the shaft which produces a pulse pattern in which when the shaft is rotated in one direction a first pulse is produced in a first circuit and a second pulse is produced in a second circuit, the second pulse beginning before the first pulse ends so that it lags behind and partially overlaps the first pulse, the second pulse being followed by a time interval before the next pair of overlapping pulses is produced, and the pattern being reversed when the shaft is rotated in the opposite direction, pulses from the first circuit being applied to one guide of a polycathode counter tube, and pulses from the second circuit being applied to the other guide of the tube. As shown, the shaft 1 carries a transparent disc 2, which carries opaque radial markings 7 separated by transparent portions 6, co-operating with a lamp 3, a gate 4, and two photo cells at 5. The gate 4 has two sets of markings, comprising transparent portions 10 and opaque portions 11, and transparent portions 12 and opaque portions 13 respectively, a photo-cell being arranged behind each set of markings. By this means, each photocell produces a set of pulses, one set leading or lagging on the other according to the direction of rotation of the shaft. The pulses from the photo-cell V1 are amplified at V3, shaped at V5 and applied to the first guide G1 of the polycathode counter V7, the pulses from photo-cell V2 being similarly treated and applied to the guide G2, and according to which pulse of the overlapping pulse pairs reaches the counter V7 first, the counter is caused to add or subtract in known manner. The counter may be arranged to operate apparatus providing a printed record. Alternatively, the overlapping pairs of pulses may be produced electromagnetically by a moving conductive disc co-operating with with two stationary concentric zig-zag arrangements of conductive material, or electrostatically, the rotating member varying the capacity between it and two stationary members.
Patent GB-1154196-A (GB)
Title: Screening Machines
Inventor: WEHNER ALBERT
IPC: B07B1/52
Filed: 1967-07-19
Abstract: 1.154,196. Scheening apparatus. A. WEHNER. 19 July, 1967 [27 July, 1966], No. 33245/67. Heading B2H. In a screening apparatus having two relatively oscillating frames, a frame 1, supporting a screen 3 having elongated slots and a frame 2 carrying cleaning members 9 which project into the slots at least during part of each cycle of relative oscillation, oscillate relative to each other by being imparted reciprocatory movements having vertical and horizontal components contained in vertical planes parallel to the longitudinal axis of the slots so that the cleaning members brush past the ends of the slots and project, at least during part of the cycle, above the screen 3. The cleaning members may be in the form of fingers, teeth or brush bristles. The screen 3 may take the form of wire screens, which may be flexible, perforated screen plates, or pressed, welded or woven screens. As shown in Figs. 1, 3 and 4, the screen 3 consists of longitudinal wires 6 of wedgeshaped cross-section and cross bars 5 which are joined together and define the slots 4. The frame 1 is supported by cheek plates having angled feet 1<SP>1</SP> attached to driving members 1. The frame 2, which may be joined to the frame 1 by flexible joints, consists of transverse beams 8 mounted on driving members II and having mounted thereon longitudinal beams 7 carrying an array of cleaning members formed by teeth of comb beans 10 which are mounted parallel to one another and spaced by a distance corresponding to the spacing of the slots 4. The comb beams and their teeth can be rigid or flexible and may be of plastics, leather, cast metal, steel, ceramic or glass. The beams 10 may be secured to the beams 7 by cementing, brazing, welding, screwing, riveting, clamping or forcing. The beams 10 and the teeth 9 may be hollow and! a fluid medium may be fed through them to the screen 3. The comb teeth may have different lengths Fig. 11, so that they penetrate to different depths in the material being screened. The upper ends of the teeth may be rounded or pointed curved or angled, Fig. 7. The parts of the teeth which project above the screen surface may have sharp or saw-tooth front and rear edges to give a cutting or tearing action in cooperation with the screen. The teeth may also be in the form of wire loops 9, Fig. 9, through which are inserted, above or below the screening surface, transverse bars 11 which facilitate cleaning. Bars of different cross-sectional shapes may also be mounted between the loops 9. Further shapes cf cleaning members are described and illustrated. The screen assembly may 'be mounted at an angle in a tank, Fig. 19, for wet separating of solids, e.g. ores or coal, settled solids being conveyed over the top of the tanks due to the oscillating movements of the screen assembly.
Patent GB-506661-A (GB)
Title: Improvements in or relating to electron multiplier discharge tubes
IPC: H01J43/04
Filed: 1937-12-01
Abstract: 506,661. Electron multipliers and circuits therefor. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and BANKS, G. B. Dec. 1, 1937, No. 33254. [Classes 39 (i) and 40 (v)] An electron multiplier discharge tube comprises two output electrodes A1, A2, Fig. 1, one or more multiplier electrodes SP1, SP2, a primary electron source C, two or more field electrodes P, P1, P2, one opposite each multiplier electrode and one opposite the source C, an electron impermeable barrier B situated between the field and multiplier electrodes and arranged effectively to separate the series of electron paths from the source C via the electrodes SP1 &c. to the output electrode A2 from the similar path to the electrode A1, and independent means for controlling the electron stream on each side of the barrier. The control means comprise slotted plates G1, G2, coplanar with the source or cathode C and with the plates SP1, SP2, and having grid wires arranged across the slots. The barrier B is a mica plate arranged transversely so as to divide the slab-like space between the plates P, SP1, &c. The two control electrodes G1, G2, may be connected to a push-pull input transformer IS, Fig. 2, and the output electrodes to an output transformer OP, the electrodes P, SP1, &c. being given successively higher potentials, and a magnetic field being applied in the direction of the arrow in Fig. 1. As the electrodes G1, G2 will be in phase opposition, the current and potential of each plate SP1, SP2 remains substantially constant, and freedom from feed-back and good stability are obtained. Also by imposing a high negative bias on the control electrodes " quiescent push-pull may be obtained.
Patent GB-1377737-A (GB)
Title: Crosslinking of olefin polymers
IPC: C08L23/00
Filed: 1971-07-15
Abstract: 1377737 Crosslinking polyolefins DOW CORNING Ltd 7 July 1972 [15 July 1971] 33282/71 Heading C3P Polyolefins are crosslinked by exposing to ultra violet radiation and/or to a temperature above 130‹ C. in contact with a silane of formula R m X 3-m SiGO.CO.N 3  where R is a C 1-20  hydrocarbon or halogenated hydrocarbon radical free from aliphatic unsaturation; X is bromine, chlorine, fluorine, C 1-4  alkoxy or alkoxyalkoxy, or an acyloxy radical of less than 5 carbon atoms; G is a C 1-12  divalent organic radical consisting of carbon, hydrogen and optionally oxygen in ester or ether linkage; and m is 0, 1 or 2; and thereafter contacting the product with water in the presence of a metal carboxylate, a titanium ester or a titanium chelate. The polyolefin may be polyethylene, polypropylene or an ethylene/propylene ethylene/butylene or propylene/2-methylpentene copolymer. The metal compound may be dibutyl tin diacetate; dibutyl- or dioctyl tin dilaurate; stannous acetate or octoate; lead or cobalt naphthenate; zinc octoate; iron 2-ethylhexoate; tetraisopropyl, tetrabutyl or tetranonyl titanate; or bis-(acetyl acetonyl)diisopropyl titanate. In examples (1) polyethylene and (2) polypropylene are mixed with 3-trimethoxysilylpropyl azidoformate, and (3) polypropylene is mixed with 3-trimethoxysilyl propoxyethyl azidoformate and the products are immersed in boiling aqueous emulsions of dibutyl tin dilaurate.
Patent GB-934783-A (GB)
Title: Catalyst and process for the isomerization of olefins
IPC: B01J29/06
Filed: 1959-10-01
Abstract: A catalyst for isomerizing olefins is prepared by treating the acidic form of a silica-alumina material having ion exchange characteristics with a basic, aqueous solution and washing until the washings are neutral, and then with a buffered acidic solution and washing until the washings are neutral.  The acidic silica-alumina may be a synthetic silica-alumina catalyst, or a clay, and is treated with a 2-20% concentrated aqueous solution of sodium carbonate or sodium hydroxide followed by a buffered acetic acidsodium acetate solution having a pH of 2,5-6,0.  The catalyst is dried at 60 DEG -150 DEG C. using an inert gas.  The isomerisation of a mono-olefin containing an unsaturated tertiary carbon atom is effected in the liquid phase in the presence of the above catalyst, e.g. at 30 DEG -100 DEG C. 2-methylpentene-1 is converted to 2-methylpentene-2; 2,3-dimethylbutene-2 to 2,3-dimethylbutene-1; 2-methylbutene-1 to 2-methylbutene-2 and 2-ethylbutene-1 to 3-methylpentene-2.
Patent GB-733994-A (GB)
Title: Improvements in transformers, in particular for electrical welding machines
IPC: H01F27/28
Filed: 1953-12-02
Abstract: 733,994. Transformers. ARO. Dec. 2, 1953 [Dec. 11, 1952], No. 33483/53. Class 38 (2). The secondary winding of a welding transformer consists of a conductive sheet which is made up of a plurality of strips, as 1, 2, arranged side by side, between each pair of which is arranged a tube 3, flattened so as to be of the same thickness as the strips, the ends 5, 6 of which are connected in a cooling circuit so that a coolant flows through the tube to cool the secondary winding. The strips 1, 2 and the tube 3 are brazed together and wound as a single sheet into a winding between the turns of which are interposed insulating members 4.
Patent GB-1444644-A (GB)
Title: Temperature measuring apparatus employing light conductors
IPC: G01J5/08
Filed: 1974-07-30
Abstract: 1444644 Light guides H KLEIBER 30 July 1974 [30 July 1973] 33659/74 Heading G2J An apparatus for use with a radiation-sensitive temperature-measuring device comprises a plurality of optical fibre bundles and a support 11,12 for holding their input ends in a spaced relationship adapted to accommodate the part of an object 1 being measured. In all embodiments the support is ring-shaped, and may, as shown, comprise two hinged sections in hinged housings 11a, 12a. The fibre bundles may have various cross-sections, see Fig. 6, (not shown) and their ends may be arranged in a sinuous or zig-zag line, Fig. 7 (not shown) in the face of the support. The bundles may be secured to the support by a plug connection or by a bayonet joint. A plurality of supports may be arranged sequentially about the object 1, see Fig. 8 (not shown) and the supports may be liquid-cooled.
Patent GB-307961-A (GB)
Title: Improvements in and relating to apparatus for the production of ultra-violet light
IPC: A61N5/06
Filed: 1927-12-13
Abstract: 307,961. Eidinow, A., and Hewittic Electric Co., Ltd. Dec. 13, 1927. Low-pressure metallic-vapour apparatus.-To restrict the emission from ultra-violet lamps to the rays of longer wave-length and thereby make the use of separate screens for this purpose unnecessary, the envelope of the lamp is made of translucent quartz or fused silver sand with glazed surfaces, e.g. that known under the Trade Mark " Vitreosil."
Patent GB-1507306-A (GB)
Title: Telescopic elements and umbrella shafts formed therefrom
IPC: A45B19/00
Filed: 1975-05-23
Abstract: 1507306 Umbrella sticks A FULTON 23 May 1975 [31 July 1974] 33787/74 Heading A4P An umbrella stick comprises at least a pair of telescopic tubes 12, 13 each formed from strip material bent to substantially annular form with the longitudinal edges 14 turned inwardly of the resulting tube and adjacent one another to provide groove 15 in the tube, one tube being slidable  within the other with its groove at least partially accommodating the in-turned edges of the other tube whereby relative rotation of the tubes is prevented. Indentations may be provided at fixed locations along each of the tubes for locking the. tubes against relative axial movement. One of the tubes may extend into a crown carrying ribs and the other into a handle to prevent the tubes opening outwardly of the desired circumference. Constraining rings may also be provided.
Patent GB-162603-A (GB)
Title: Improvements in belts for personal wear
IPC: A41F9/00
Filed: 1920-11-30
Abstract: 162,603. Stephen, G. Nov. 30, 1920. No Patent granted (Sealing fee not paid). Belts; straps and bands; fastening wearing- apparel.-A belt, chiefly for sporting wear, con. sists of a strip of knitted fabric the ends of which, after passing through a slide, are bent back on themselves and buttoned to the belt. Each end b of the strip a is provided with a button-hole carrying a stud d. by which it is secured to buttonholes e in the strip a when the belt has been drawn through the slide c to the required tightness.
Patent GB-997197-A (GB)
Title: Electric motor
IPC: H02K9/18
Filed: 1961-09-21
Abstract: 997,197. Mounting and cooling electric motors. BROWN, BOVERI & CO. Ltd. Sept. 21, 1961 [Sept. 23, 1960], No. 33886/61. Heading H2A. A flange mounting electric motor for use in a compartment having a radio-active atmosphere, is provided with a jacket for cooling liquid, attached to the motor in such a way as to facilitate removal of the jacket or motor by remotelycontrolled manipulators applied in the axial direction from the non- driving end. As shown, the motor is cooled by gas, circulated through the rotor 1 and stator 2 by a fan 17. The hot gas passes over fins 3, through slots 15, over a finned tube 11 and back through slots 16. The gas is cooled by liquid entering via a pipe 13 and passing through finned tube 11, then through the hollow cover 12 and out via a pipe 14. Rollers or skids are provided to enable the motor to approach the mounting plate 6 from the left, tapered pins 19 being provided for alignment. Plug-in connection 21, 22 and a plug-in coupling 9 are also provided. The motor is retained by bolts 5 passing through a mounting flange 4. The liquid cooler may be removed by removing bolts 5, 18. Modifications.-The cooling liquid may pass through the tube 11 and hollow cover 12 in parallel streams and may be circulated via cavities in the bearing end shields. In Fig. 2 (not shown) a blower impeller is directly mounted on the end of the motor shaft.
Patent GB-416763-A (GB)
Title: Improvements in beverage cooling or heating and dispensing apparatus
IPC: F25D31/00
Filed: 1933-12-04
Abstract: 416,763. Cooling or heating and dispensing beverages. ORANGE-CRUSH CO., 324, West Superior Street, Chicago, U.S.A. Dec. 4, 1933, No. 34020. Convention date, April 5. [Class 29.] A beverage cooling or heating and dispensing apparatus comprises a glass beverage container 23 disposed in an outer glass vessel and containing a thin metal vessel 43 having hollow vanes 45 and adapted to hold ice, solid carbon dioxide, or an electrical heater. The annular space between the outer vessel and the container 23 is sealed by a glass cover 28 apertured to receive the metal vessel, and the apparatus is provided with a glass top containing an electric lamp for illuminating the beverage. The metal vessel may be oscillated by a member 46 projecting through a slot in the glass top.