baber/WOPTO huggingface dataset:
Patent GB-1037588-A (GB)
Title: Improvements relating to silicon carbide semiconductor elements
IPC: H01L29/24
Filed: 1965-07-15
Abstract: 1,037,588. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 15, 1965 [July 25, 1964], No. 30008/65. Heading H1K. An ohmic contact is made to silicon carbide using an alloy containing 60-90 wt. per cent gold, 5-30 wt. per cent tantalum, 5-30 wt. per cent platinum or palladium, and, if desired, small quantities of dopant impurities. A typical composition is 80% gold, 10% tantalum, and 10% platinum or palladium. When making contact to P-type silicon carbide 0À5-1% aluminium may be present in the alloy.
Patent GB-379904-A (GB)
Title: Anti-squirt valve for drinking fountains
IPC: E03B9/20
Filed: 1931-10-29
Abstract: 379,904. Drinking fountains. DAVIS, A. H., 45, Yewfield Road, Willesden, London. Oct. 29, 1931, No. 30012. [Class 69 (i).] The outlet of a drinking fountain consists of a hollow plunger 2, which is normally raised by the water pressure when a control valve 11 is open, but is depressed on to a seat 9 if an attempt be made to squirt the water by applying a finger to the discharge opening. If the plunger be held up while applying a finger to the opening, water escapes through holes 16 and is directed downwardly by a skirt portion 17.
Patent GB-652841-A (GB)
Title: Improvements relating to centrifugal pumps
IPC: F04D29/04
Filed: 1948-11-19
Abstract: 652,841. Centrifugal pumps. DEXINE RUBBER & EBONITE Ltd., and FOREMAN, W. E. Nov. 19, 1948, No. 30106. [Class 110(i)] [Also in Group XXIV] A sleeve b is provided around and detachably coupled to the impeller shaft a so as to turn therewith, and is journalled in a packing gland adjacent the impeller and in spaced bearings c in housings d on the pump bed e. The sleeve is slotted to engage between lugs f on the shaft and abuts against a shoulder h on the shaft. The impeller and shaft can be removed without disturbing the sleeve or bearings, by unscrewing a lock nut g. The pump is of the type described in Specification 652,840.
Patent GB-210537-A (GB)
Title: Improvements in and relating to colour control systems for projectors
IPC: G03B33/08
Filed: 1922-11-03
Abstract: 210,537. British Thomson-Houston Co., Ltd., and Wheat, H. C. Nov. 3, 1922. Optical-projection apparatus. - A slide for a colour-control system passing in front of a projector moves at a rate governed by a braking device driven by the weight of the slide. As shown in Figs. 1 and 2, a slide 1 formed of sheets of tinted glass is suspended in front of a projector 2 by cords 3 wound on drums 4 on a spindle 5, which drives an adjustable " fly " 9 through a train of gears 8. The slide 1 is wound up by a crankhandle 7 and the braking effect of the " fly " is varied according to the distance of the vanes from the spindle. Masks 11 vary the strength of the light, and the width of each colour section is governed by the time duration desired. In the modification shown in Figs. 3 and 4, the slide 1 is furnished with a rack 13, engaging a pinion 15 on a spindle 16 secured to the projector 12. An escapement wheel 16 engages an escapement 17 attached to a pendulum 18 having an adjustable weight 19 to control the descent of the slide. A number of projectors may be employed, being synchronized if desired, an electrically-operated trip being employed to control the commencement of operation from a distance. The motion of the slides may be made intermittent by employing suitable gear to stop and re-start it.
Patent GB-779807-A (GB)
Title: Thermal stabilization of ethylene polymers
IPC: C08K5/39
Filed: 1955-10-21
Abstract: Solid polymers or copolymers of ethylene. e.g. with styrene, vinyl chloride or acetate, vinylidene chlorofluoride and methyl methacrylate are stabilized against oxidative degradation during thermal processing by incorporating a zinc di-(saturated hydrocarbon) substituted diorthocarbamate.  Compounds of the formula <FORM:0779807/IV(a)/1> where R1, R11, R111, R1111 are alkyl groups or R1 and R11 together and/or R111 and R1111 together constitute a polymethylene or alkyl polymethylene group which may contain 4 to 5 carbon atoms, may be used in up to 1 per cent by weight.  Alkyl groups mentioned are methyl, ethyl, n-propyl, isopropyl, n-, sec-, iso- and t-butyl, amyl, hexyl, octyl and dodecyl groups and the polymethylene groups may be those derived from piperidine, pyrrolidine, 2-methyl pyrrolidine, hexahydrocollidines, hexahydropicolines and hexahydrolutidines.  Examples are the mixed zinc salt of diethyl and dimethyldithiocarbamic acid, zinc pentamethylene-, 2-methyltetramethyl-, tetramethylene - 3 - ethylpentamethylene-, di - (sec. - amyl)-, di - (2 - ethylhexyl) dithiocarbamates.  The dithiocarbamates may be incorporated as solids, or in solution in, for example, carbon disulphide, benzene, toluene or chloroform by mixing, cold milling, or extrusion or by addition to a benzene or xylene solution of polyethylene.  The solution may be cast or spun into films or fibres.  Articles of improved heat resistance may be obtained by moulding and subjecting the shaped article to additional heating and exposure to ultra-violet light.
Patent GB-1514708-A (GB)
Title: Catch for windows and fanlights
IPC: E05C3/36
Filed: 1975-08-15
Abstract: 1514708 Latches JAMES GIBBONS Ltd 15 Aug 1975 [8 July 1974] 30185/74 Heading E2A A latch capable of securing a pivoted window or fanlight in a closed or a slightly open position comprises rack keeper part 11 on the frame 13 of the window and a gear wheel part 10 secured to the frame 12 of the window. The gear wheel is latched against counterclockwise (i.e. releasing) rotation, by a spring-loaded pawl 24 pivoted to the window frame at 26. This pawl is released to allow opening of the window by a slider (27) having a pull-ring 27a for drawing it out against spring-loading 31 whereupon a pin 28 on the pawl is entrained by the slider to rotate the pawl counterclockwise to free the gear wheel.
Patent GB-1434285-A (GB)
Title: Valves
IPC: F16K27/04
Filed: 1973-06-26
Abstract: 1434285 Making valve casings TRIANGLE VALVE CO Ltd 5 Aug 1974 [26 June 1973] 30349/73 Heading B3A [Also in Division F2] A gate valve comprises a body formed by two parallel back walls 10, interconnected by two relatively narrow side walls 14, each wall 10 terminating at each end in a D-shaped plate 15. Seat rings 13 are welded into apertures 11, the bottom of the body is closed by a hemi-spherical base 10 and the top of the body is encompassed by a ring 19, flange 20, and a cover 21, 22, 23. A gate is housed in the body and actuated by a manual or power-actuated rod 24. In a modification the body is formed by five castings comprising sub assemblies, and welded together.
Patent GB-1490813-A (GB)
Title: Leaching of copper dross
IPC: C22B15/00
Filed: 1975-07-21
Abstract: 1490813 Extraction of copper ISC SMELTING Ltd 5 July 1976 [21 July 1975] 30485/75 Heading ClA Copper values are leached from copper dross (separated from blast furnace lead bullion) which contains 0À5-1À5 g. atoms of sulphur per g. atom of copper, by contacting particles of the dross, in the form of a matrix of metallic lead containing copper and copper compound inclusions, with an aqueous solution of ammonium sulphate and ammonium hydroxide the solution containing substantially no carbonate ions. The leaching may be performed in the presence of an oxidizing gas. The copper may be recovered from the leachate by contact with a copper-selective organic extractant.
Patent GB-1359642-A (GB)
Title: Aerodynamic surfaces
IPC: B64C9/20
Filed: 1970-06-23
Abstract: 1359642 Aerodynamic high lift devices HAWKER SIDDELEY AVIATION Ltd 18 June 1971 [23 June 1970] 30512/70 Heading B7G [Also in Division F2] An aerodynamic lifting surface, such as an aircraft wing, has a main body and a trailing portion 16, with a recess 15 in the underside of the trailing portion, and with a high lift device comprising a plurality of interconnected members stowed in folded condition, Fig. 1, in the recess when the device is not in use, and means for unfolding and extending the members into an operative condition, Fig. 5, below the recess thereby to form on the trailing portion an under and rear surface which is made up of a convexly curved approximately semi-cylindrical bluff rear part extending downward from the region of the trailing edge of the trailing portion to a position well below the level of the undersurface of the main body of the wing, and a substantially flat underpart connected at its rear edge to the convexly curved bluff rear part at the position well below the main body surface level and extending therefrom forward and upward to a region adjacent the forward extremity of the recess, at least one slot being defined in the region of the upper extremity of the convexly curved bluff part to issue air rearwardly over the convexly curved bluff part. A first member in the form of segment 10, Figs. 1 and 5, is fixed to a trolley 13 running in a rail 14 fixed to the wing 11, and is pivoted to a second member in the form of segment 17 which in turn is pivoted to a plate 21 forming the flat part. The segments 10, 17 form the semicylindrical bluff part. The plate is pivoted to a lever 24 controlled by a jack 15 to swivel about a pivot on the wing so that when the plate 21 is lowered a scoop 28, Fig. 5, is formed which captures air for issuing through a slot 30 formed when the trolley 13 moves to the trailing edge of the wing. Air may be blown through a rearwardly directed slot in the segment 10. Alternatively, or in addition, air may be blown through a slot or slots in the fixed trailing portion 16 of the wing 11. The two segments can be replaced by an inflatable bag 35, Fig. 6, containing a hollow former 37 extending spanwise at the top of the bag, the former having a slot 40 issuing air over the rounded trailing edge of the bag. The bottom of the bag is fixed to the trailing portion of plate 21. A slot 30 may be provided above the bag which may be also fixed to the trailing portion 16 of the wing 11.
Patent GB-618299-A (GB)
Title: Improvements in or relating to the method of concentrating synthetic latex
IPC: C08F6/20
Filed: 1946-10-15
Abstract: A latex of a resin prepared by the polymerization in aqueous emulsion of a monomeric material comprising vinyl chloride and/or vinylidene chloride, or a mixture of vinyl chloride and/or vinylidene chloride with an ester of an acrylic acid, is concentrated by adding thereto a creaming agent in an amount of from 0.05 per cent to 0.5 per cent by weight of the water content of the latex and allowing the mixture to stand, when the concentrated latex can be separated from the serum. Suitable esters are methyl acrylate and methacrylate, ethyl acrylate, butyl, dodecyl and phenyl acrylates, ethylene diacrylate and a -chloracylates.  Specified creaming agents are sodium and ammonium alginates, tragon seed gum, gum tragacanth, glue and gelatin.  The pH of the emulsion is preferably adjusted, before creaming, to between 8 and 11.
Patent GB-726175-A (GB)
Title: Improvements in photoelectric cells
IPC: H01J40/00
Filed: 1953-11-05
Abstract: 726,175. Photo-electric cells. GENERAL ELECTRIC CO. Nov. 5, 1933 [Nov. 5, 1952], No. 30666/53. Class 37. [Also in Group XL(a)] In a photo-electric cell, the electron-emissive cathode 10 is composed of a photo-conducting semi-conductor of elongated configuration, terminating in a point. Satisfactory materials are the sulphides of cadmium, zinc, antimony and molybdenum, the oxides and selenides of cadmium and zinc, and lead telluride. Photo-conductivity may be imparted to compounds by firing for half an hour or longer at 700‹ C. or higher. The sulphides or selenides may be prepared by reacting the metals in vapour form with hydrogen sulphide or selenide vapour in a hot quartz tube. In some cases trace impurities of silver or copper added prior to firing enhance the photo-conductivity. The preferred semi-conductor has a resistivity of 10<SP>6</SP> to 10<SP>8</SP> ohm-cms. in the dark, which is lowered by a factor of 100 or more in light. In operation, emission is concentrated at the point, which is shaped by abrasive or chemical action, or by electron bombardment from a surrounding coil. The anode is a transparent conductive wall coating 13.
Patent GB-221392-A (GB)
Title: Improvements in radio receiving sets
IPC: H01G5/06
Filed: 1923-12-06
Abstract: 221,392. Western Electric Co., Ltd., and Grace, B. B. Dec. 6, 1923. Drawings to Specification. Wireless tuning-apparatus, adjustment devices for.-The variable inductance of a wireless receiving set is provided with removable stops for restricting the movement of the movable element to a desired range. These stops, which engage an arm carried by the rotary spindle of the device, may be inserted in slots in the base plate.
Patent GB-1197284-A (GB)
Title: An Improved Catch Assembly for Relatively Slidable Elements
Inventor: ADAMS ALBERT JOHN
IPC: B60N2/07
Filed: 1967-07-04
Abstract: 1,197,284. Latches. A. W. CHAPMAN Ltd. 30 July, 1968 [4 July, 1967], No. 30705/67. Heading E2A. An assembly for securing a seat adjustably to a vehicle comprises two guides 10, 10a a bracket 14, 14a slidable on each guide and a catch member 22, 22a pivoted to a plate 18, 18a on each bracket and with a downwardly bent flange 30, 30a, which is selectively engageable in one of a series of notches 13, 13a in the wall of the guides. Each catch is urged to engage a notch by a spring 36, 36a which is connected to the bracket and to one 34, 34a of two hook like parts on the catch. The other part 35, 35a of the catch 22a is connected to a handle 38 and the other part 35 of the catch 22 is connected by a linkage 40 to the handle. Rotating the handle disengages each flange from a notch and releases the seat for adjustment. In the alternative construction the catch is an integral extension of the handle and the flange extends through an arcuate slot in the bracket and is engageable with one of a series of slots correspondly shaped in the guide.
Patent GB-965978-A (GB)
Title: Improvements in or relating to apparatus for setting up cartons
Inventor: MOSSE RICHARD WOLFGANG EMIL
IPC: B31B3/46
Filed: 1962-08-10
Abstract: 965,978. Making boxes. METAL BOX CO. Ltd. July 26, 1963 [Aug. 10, 1962], No. 30775/62. Heading B5D. A blank 9 (Fig. 2) folded on a punch 3 reciprocal in a die 1 is removed by ejector elements 10, 11 movable in paths parallel with openings 7, 8 at opposite sides of the die and the ejectors are urged towards each other by guides 12, 13 in order to grip the carton. The cartons are prevented from following the punch 3 on removal by stationary spring fingers (not shown). The engaging faces of the ejector elements diverge in their direction of movement and a heel at the back engages in a groove in one of the guides 12, 13. Alternatively the ejector elements may have the shape shown in Fig. 6 in which the step 53 prevents a carton becoming disengaged when the machine is stopped. These elements are carried on chains 14 (Fig. 2) tensioned by sprockets 22 and whose linear speed is reduced when the carton is removed from the die 1 and when it is deposited on receiving elements 31, 32 either by a cam 36 and planet 33, 34 mechanism or by co-operating elliptic gear-wheels (Fig. 5, not shown). The cartons are removed from the elements 31, 32 by a pusher 51 on a chain 52. The distance between the chains 14, 15 may be adjusted for different-sized cartons by rotation of shaft 46 due to left and right hand screws 47, 48. Specification 943,272 is referred to.
Patent GB-425062-A (GB)
Title: Improved means for attaching pipes, signal wires, electric cables, cable slings, and like apparatus to girder like structures
IPC: F16L3/24
Filed: 1933-11-06
Abstract: 425,062. Brackets. BRITISH BELTING & ASBESTOS, Ltd., 59, Southwark Street, London, and PILKINGTON, J., 26, Doncaster Road, Armthorpe, near Doncaster. Nov. 6, 1933, No. 30795. [Class 52 (v)] [See also Groups XXV and XXXVI] A clamp for the attachment to a girder 5 of a plate 12 having means for supporting pipes, electric cables, lamps, insulators, &c. consists of one plate 3 integral with or fixed to the plate 12 and having a lip 4 to engage the girder 5, and a second plate 8 passing through a slot 6 in the plate 3 and having a lip 9 to engage the girder, the clamp being tightened by a wedge 10, e.g. a tram nail, passed through a slot 11 in the plate 8. The end 7 of the plate 8 may be bent or burred over to prevent separation of the plates 3, 8. In a modification, the plate 3 passes through a slot in the plate 8.
Patent GB-954527-A (GB)
Title: Improved mineral fibre mat formation
Inventor: BALL FRANK JERVEY
IPC: D04H1/4218
Filed: 1962-08-10
Abstract: A method of producing a mat of mineral fibres wherein mineral fibres are produced by attenuation from molten mineral and a binder is applied to the fibres by spraying the binder, while dispersed in a aqueous liquid medium, into a heated atmosphere and thence into contact with the attenuated fibres for effecting a bond between the fibres, is characterized by spraying into said atmosphere droplets of an aqueous liquid blend of an "A" stage resole with from 0.1 to 9 parts by weight of lignin per part of said resole, the droplets in the heated atmosphere becoming converted by loss of water vapour to a viscous adhesive blend of the resole and the lignin that adheres to the fibres and bonds them together where they are in contact relation, and thereafter heat curing the adhesive blend "in situ", as disposed and carried by the fibres, to effect a resin-forming reaction between the resole and the lignium.  The atmosphere is preferably a steam containing atmosphere at a temperature above 212 DEG F. and preferably above 450 DEG F.  The fibres are preferably glass fibres and the resole is preferably phenol aldehyde resin.  The lignin may be alkali lignin preferably in the free acid form and the "A" stage resole and the alkali lignin in free acid form may be contained in an aqueous ammoniacal mutual solution that is sprayed into the atmosphere.  The solids content of the solution initially sprayed into the heated atmosphere may be from about 3% to about 50% and the solids content of the binder that is applied to the mineral fibres may be from about 1% to about 15% by weight of the fibres.
Patent GB-767678-A (GB)
Title: Improvements in or relating to hydraulic brake assemblies
IPC: F16D65/28
Filed: 1953-07-29
Abstract: 767,678. Hydraulic brakes. WAGNER ELECTRIC CORPORATION. July 29, 1953 [Aug. 9, 1952], No. 30848/54. Divided out of 767,677. Class 103 (1). The detail description and Figures are included in those for Specification 767,677, which relates to a servo and directly operated hydraulic brake system, the present Specification. being divided therefrom with claims relating specifically to the pressure generating control device 12 whereby pressure produced below a piston 92 on closure of an axial port 90 therein by a valve element 88 in a plunger shaft 66 is applied to the by-pass piston of the power cluster whereby output from the gear pump.is throttled to produce a thrust on the brake operating piston. Due to the limitation of displacement of fluid continued downward movement of piston 92 causes an upward movement of sleeve 84 against spring 82 giving a continuous " feel " during the braking action.
Patent GB-867981-A (GB)
Title: Aqueous resin syrups and their manufacture and use
IPC: C08G12/26
Filed: 1959-09-09
Abstract: A process for the production of a resin syrup comprises heating melamine and benzoguanamine in a mole ratio of 1 : 0,02 to 1 : 0,12 with 0,6 to 1,2 moles of formaldehyde per mole of primary amino group in an aqueous alkaline medium at a pH 8 to 9,2 and at a temperature below 100 DEG C. until a syrup is formed having a solids content of 40% to 65% by weight and a test portion, when diluted with water at 25 DEG C. to a solids content of 20% to 30% by weight produces a slight turbidity, cooling the resin solution to room temperature, and adjusting the pH to 9,0 to 9,5.  It is preferred to use a melamine-benzoguanamine ratio of 1 : 0,03 to 1 : 0,10, 0,8 to 1,0 molecules of formaldehyde per primary amino group, a pH of 8,5 to 9,0, a final adjusted pH of 9,0 to 9,3, and a solids content of 50% to 60%.  More flexible products on curing are obtained if an aryl sulphonamide or a polyhydric alcohol (e.g. a polyethylene glycol) plasticizer is added initially or at any stage in the reaction. The products are used in producing laminates (see Group VIII) and can be cured at 120 DEG  to 160 DEG C.
Patent GB-882516-A (GB)
Title: Improvements in supercharged reciprocating internal combustion engines
IPC: F02B37/02
Filed: 1960-09-07
Abstract: 882,516. Gas-turbine plant. CESKOSLOVENSKE ZARODY NAFTOVYCH MOTORU PRAHA, NARODNI PODNIK. Sept. 7, 1960 [Sept. 16, 1959], No. 30880/60. Class 110 (3). [Also in Group XXVII] In a two-stroke engine supercharged by an exhaust gas turbine driven blower the exhaust gases of each cylinder are discharged in a plurality of separate streams 4, 7, Fig. 1, which have different velocities and pressures, to an equal number of groups 5, 8 of respectively differently-shaped guide blades on a single guide blade ring 16 of the turbine. In a four-stroke embodiment, Fig. 2, a crank-shaftdriven slide valve 10 successively uncovers ports 3, 6 to discharge the separate gas streams 4, 7, or in a modification, Fig. 3 (not shown), the slide valve is replaced by a pair of lift valves each of which separately controls a cylinder head port through which a gas stream is discharged. In the velocity diagram, Fig. 4, the guide blades of the groups 5 and 8 are shaped so that the resultant gas velocities W<SP>1</SP> and W<SP>11</SP>, flowing therefrom have the same relative direction with respect to the rotor blades 15.
Patent GB-603049-A (GB)
Title: Improvements in or relating to the mounting and operation of bucket ladder dredgers or excavators
IPC: E02F3/14
Filed: 1945-11-16
Abstract: 603,049. Excavators and dredgers. TEMPLE, H.R.H. Nov. 16, 1945, No. 30884. [Class 68 (i)] [Also in Group XXIV] In a bucket ladder dredger or excavator, the loading run of the bucket chain is supported between the tumblers by one or more endless chains; the unloaded run may be similarly supported. The bucket chain 10 is carried by a ladder 14 pivoted at 13 and dumps spoil through troughs 17, 18 to a trammel 19, a channel member 21 forming a guide. The upper and lower runs of the bucket chain are supported respectively by pairs of endless chains 23, 25, running over rollers 24, 26 ; at intervals, adjacent ends of links of the chains 23, 25 may be provided with upstanding portions which, when in contact, form semicircular recesses supporting the ends of shafts 27, Fig. 6, which pass through the pivots of the bucket chain. The upper and lower tumblers 12, 11 each comprise driving members 29 bolted together and keyed to a shaft 30, the tumblers having rings 28 or segmental elements bolted thereto and provided with recesses adapted to receive the ends of shafts 27.