baber/WOPTO huggingface dataset:
Patent GB-1352621-A (GB)
Title: High frequency semiconductor device
IPC: H01L23/66
Filed: 1971-09-08
Abstract: 1352621 Semi-conductor encapsulation RCA CORPORATION 8 Sept 1971 [23 Sept 1970] 41796/71 Heading H1K The joints between metallic and ceramic components of a housing are arranged so that consecutive joints have no appreciable overlap; the metallic parts are terminal members and so inter-electrode capacitance is kept low. The transistor 12 is attached by its collector surface to a molybdenum coating 46 on a beryllia ceramic substrate 18. The substrate is provided with an undersurface molybdenum film 52 used in brazing the substrate to the raised platform 32 of a copper base 30. A copper lead 20 is brazed to a peripheral molybdenum film 44 on the upper surface of the substrate, the film being staggered with respect to the lower bonding area 52 and lying over an air gap formed between the overhang of the substrate and the main surface of the copper base. The pillars 34 on the base project through holes in the substrate 18 and receive fine wire bonds (not shown) from the base electrode on the transistor 12. A stepped spacer 22 of alumina ceramic is provided with staggered molybdenum films 72, 76 and has bonded thereto the two upper electrodes 20, 24. Fine wire bonds (not shown) from the emitter electrode of the transistor 12 are terminated on the ledge 84 of electrode 24. A nickel cap 26 is welded to this electrode. The brazed joints in the housing make use of an alloy of 72 wt. per cent Ag; 28 wt. per cent Cu.
Patent GB-1091657-A (GB)
Title: Improvements in or relative to expansion bushings
IPC: F16B13/06
Filed: 1966-09-20
Abstract: 1,091,657. Clamps. E. H. LINDEBERG, S. F. G. LINEDEBERG and P. S. GEJEL. Sept. 20, 1966 [Sept. 20, 1965], No. 41898/66. Heading E2B. [Also in Division F2] An expandable bush 1 has longitudinal weakening grooves 2 and conical end faces 3. The bush is expanded radially by a screw 7, having a threaded bore 9, which draws a frustoconical nut 5 and ring 4 towards each other The members 4 and 5 have dogs 6 engaging in the grooves 2 to prevent relative rotation. The bush may have a circular external crosssection.
Patent GB-1207409-A (GB)
Title: Epoxy resin compositions
IPC: C08L63/00
Filed: 1968-09-05
Abstract: 1,207,409. Laminates. CELANESE COATINGS CO. 5 Sept., 1968 [5 Sept., 1967], No. 42181/68. Heading B5N. [Also in Division C3] Laminates are prepared from glass cloth impregnated with a composition which may be cured at room temperature comprising: (I) a compound containing more than one epoxy group per molecule, (II) a condensate of 1À1 to 1À4 moles of an aryl sulphonamide having one sulphonamide group directly attached to an aromatic nucleus and one mole of a C 1-8  aliphatic aldehyde, and (III) an aliphatic polyamine containing more than two amine hydrogen atoms per molecule. II and III are in a weight ratio of 1 to 10 parts of II to 10 parts of III. From 0À75 to 1À5 total equivalents of sulphonamide and amino hydrogen atoms are present per epoxide equivalent of I. I may be a glycidyl polyether of bisphenol A. II may be para-toluene sulphonamide/formaldehyde resin having a softening point of 40-80 C. III may be iminobispropylamine or N-oleyl-1,3-propanediamine. In an example a 12-ply laminate containing 49% resin was cured for 2 weeks at 25 C.
Patent GB-1160173-A (GB)
Title: Nacreous Pigment of Black Pearl Tone
Inventor: MORITA YOSHIO
IPC: C09C1/00
Filed: 1967-09-15
Abstract: 1,160,173. Lead Pigment. NIHON KOKEN KOGYO K.K. 15 Sept., 1967, No. 42245/67. Heading C1A. A highly lustrous nacreous pigment of black pearl tone comprises substantially uniform crystalline platelets characterized by strong reflectance and weak transmittance of incident light, the platelets having an optical thickness of 180-2000 mÁ, and the individual platelets consisting of a core of crystalline, light-transmitting lead salt having an index of refraction of 1À8-2À1 and substantially uniform surface layer on the upper and lower surface of a mixture of lead sulphide [salt] and PbS.Pb(OH) 2 , each of which surface layers has an optical thickness of 10-30 mÁ. The pigment may be prepared by suspending the core material in an aqueous medium, preferably having a lead ion concn. of up to 0.01 mole/litre, and adding thereto, at a rate of 0À001-0À02 mole of sulphide ion per minute, a soln. of an inorganic sulphide, the soln. having a sulphide ion concn. of 0À0001-0À03 mole per litre to form by chemical reaction on the surface of the platelets the mixture of PbS and PbS.Pb(OH) 2 . The core may be basic lead carbonate, lead hydrogen arsenate, lead phosphate, lead hydrogen phosphate or lead iodide. The inorganic sulphide may be sodium sulphide, potassium sulphide, hydrogen sulphide or ammonium sulphide. Lead acetate, lead nitrate or lead chloride may be used to provide the aqueous medium with lead ion. The suspension may be formed with conventional surfactants such as polyoxyethylene esters and ethers, alkylbenzene sulphonates, polyoxyethylene alkylbenzene sulphonates and polyoxyethylene alkylamines. A buffer soln. made from combinations of ammonium acetate, sodium acetate, sodium citrate, sodium hydrogen phosphate, potassium hydrogen phosphate, borax and sodium chloride may be added to maintain a steady rate of reaction.
Patent GB-1065644-A (GB)
Title: Improvements in and relating to surgical lamps
Inventor: POTAPENKO GENNADY
IPC: F24F13/078
Filed: 1963-10-29
Abstract: 1,065,644. Ventilators; air conditioning operating theatres; lamps. UNION-CARBIDE CORPORATION. Oct. 29, 1963, No. 42563/63. Headings F4R and F4V. Sterile air is directed from a surgical lamp on to the same area as that illuminated by the lamp. The air may be passed to the lamp housing and ejected through openings in a lens or may be passed to an annular channel surrounding the housing and ejected as an annular convergent stream. Where air is passed through the housing a heat reflecting partition transparent to light may separate the air stream from the illuminating means in the housing. Where the lamp is used in an operating theatre a further supply of sterile air may be supplied throughout the theatre through perforations in a false ceiling.
Patent GB-1321907-A (GB)
Title: Surface heater for a toaster
IPC: H05B3/18
Filed: 1970-09-04
Abstract: 1321907 Resistance heating element MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 4 Sept 1970 [11 Sept 1969 (2) 20 Oct 1969 20 April 1970] 42596/70 Heading H5H An electric surface heater for a toaster comprises heating wires 7 woven into a woven sheet 6 which is sandwiched between glass fibre sheets 5 impregnated with silicone enamel, i.e. a silicone varnish having a filler, e.g. silicon oxide and a colouring agent, e.g. iron oxide. The surface heater is made by pressing and heating a woven glass fibre sheet 6 with its resistance wires 7 between a pair of glass fibre sheets 5 impregnated with silicone enamel to which a catalyst, e.g. a Zn, Fe or Cu salt of an organic acid for example octanoic acid, is preferably added. To ensure that the central areas of bread slices are toasted as quickly as the peripheral areas the surface heater is provided with a convex surface facing the bread. This convex surface may be preformed or it may appear on heating due to warping of the surface heater. In the latter case the thickness of insulating material on one side of sheet 6 is made greater than that on the other. The surface heater may have a central projection arranged to contact the bread to enable a temperature detector placed behind the projection to faithfully indicate the bread temperature.
Patent GB-902669-A (GB)
Title: Milling cutter for cutting off moulding sand projecting above the filled flask
IPC: B22C19/00
Filed: 1959-12-17
Abstract: 902,669. Moulding-machines. BADISCHE MASCHINENFABRIK A.G. Dec. 17, 1959 [Dec. 19, 1958], No. 42958/59. Class 83 (1). A device for striking off moulding sand projecting above the filled flask comprises a cylinder 20 with metal strips 21, and a feeler device 18 mounted on a lifting arrangement 1-4, the feeler device automatically adjusting the cylinder to the variable height of the flask. The flask K arriving from the moulding machine first actuates a limit switch 1, causing the piston 16 carrying the feeler member 18 to move downwardly, then a limit switch II causing pressure oil to be applied to the upper ends of cylinders 1 and the cylinder and feeler device on supports 7, 8 to be lowered. When the feeler member 18 contacts the flask spring 17 is compressed until a switch III is actuated, throttling the pressure oil supply to the pistons 1 and slowing the descent of the cylinder &c. until the cylinder is at flask level, when a switch IV is actuated so that the cylinder and lifting system remain halted, the feeler 18 rises, and the drive to the rolls 23 is switched on so that the flask travels beneath the constantly-driven cylinder 20. Beyond the cylinder the flask actuates a limit switch V to restore the lifting assembly to its initial upper position. The cylinder and feeler device supports 7, 8 are in two parts and should the cylinder descend unintentionally when set to its operative position, an abutment surface 22 engages the flask and the supportmembers 8 rock upwardly, actuating a switch IV to cause the lifting system to be moved upwardly and the rest of the control circuit to be deenergized.
Patent GB-1284280-A (GB)
Title: Improvements in or relating to a process for the production of modifiers for aminotriazine and other aminoplast resins
IPC: C08G12/10
Filed: 1969-08-28
Abstract: 1284280 Laminates ADOLF FUNDER oHG FASERPLATTENFABRIK UND HOLZINDUSTRIE 28 Aug 1969 [25 Feb 1969] 42982/69 Heading B5N [Also in Division C3] Aminoplast resins for use in laminating are modified by adding a resin obtained by heating an aminoplast-forming amino-, imino- or amidecontaining compound with substantially anhydrous formaldehyde in an organic polyhydroxylic solvent, the molar ratio of formaldehyde to the aminoplast-forming compound being less than 1À1 : 1. Suitable polyhydroxylic solvents include unsubstituted polyalcohols and amino-, polyamino-, aldehyde- and keto-polyalcohols. The modifying resin may be further reacted with a polycarboxylic acid. In examples melamine, acetoguanamine, or urea is heated with paraformaldehyde, in molar ratio 1À5-3 : 1 in ethylene glycol or glycerol to which adipic acid may be added, or in diethylene glycol; adipic acid may be added after the initial condensation and removal of unreacted polyol; the products are added in amounts of 1-10 wt. per cent to conventional melamine resin solutions, which are then used to impregnate paper, fleeces and fabrics for lamination under heat and pressure.
Patent GB-1089456-A (GB)
Title: Improvements in or relating to the production by fusion of a metallic mass
IPC: B22D23/10
Filed: 1964-10-22
Abstract: 1,089,456. Casting processes; continuouscasting machines; casting composite ingots; consumable electrodes; rolling. LA SOUDURE ELECTRIQUE AUOTGENE, PROCEDES ARCOS. Oct. 22, 1964 [Nov. 28, 1963], No. 43050/64. Headings B3F, B3M and B3R. In an ingot-manufacturing process of the type in which a consumable electrode comprising compacted metallic powder penetrates continuously into electrically-heated molten slag 3 covering molten and solid metal 15, 4 in a watercooled mould 5, the electrode is formed by passing a wire 14 at constant speed through a container 19 where it is coated with metallic powder 13 compacted by a rotating feed screw 20. Members 5, 14 are connected to an electrical supply 7, and a protecting gas-filled shroud 23 may be provided for the electrode. If the powder is magnetic, agglomeration and compacting may be achieved by passing the electrode between electromagnetic coils after its emergence from the container 19, Fig. 11 (not shown). Mixing of the molten materials may be improved by using a medium frequency heating supply (e.g. 300 cycles) and/or by using a non-magnetic mould surrounded by an electromagnetic coil, Fig. 18 (not shown). Ultrasonic vibrations may be used if a fine crystalline structure is desired. The electrode may comprise metal strip having compacted powder on one or both sides, and compaction may be performed by passing the powder-coated wire or strip between suitably-shaped rollers, Figs. 7 to 10 (not shown). In another modification, Fig. 12 (not shown), the electrode is entirely composed of compacted powder. The arrangement of Fig. 5 may be modified to perform continuous casting of lengths of metal extracted from a bottomless mould by driving rollers therebeneath, Figs. 13, 15 and 17 (not shown). Fig. 19 shows an arrangement for producing a composite ingot. Reference is also made to a mould closing around metallic parts to be joined and to a mould comprising several parts of which only some are cooled to join other uncooled sections. Typical figures are given for electrode dimensions, composition, fusion speed and energy consumption, and a comparison is made with various prior art electrodes.
Patent GB-1010770-A (GB)
Title: A vehicle body detachably engageable with its chassis
IPC: B65D90/14
Filed: 1963-11-01
Abstract: 1,010,770. Loading load-lot containers. AUTOLAVA OY. Nov. 1, 1963 [Nov. 7, 1962], No. 43264/63. Heading B8E. A vehicle with a chassis 22 has a detachable body 23 provided with rails 25 mounting at their front rollers 36. The body can be supported on the ground by rear and front pivoted supports 30, 34, Fig. 5, so that as the chassis is backed towards it the rollers 36 and rails 25 engage sloping plate-like guide ramps 40 which guide and slightly raise its forward end until the rails pass over rollers 46 of the chassis which can be power driven. Further rearward movement of the chassis causes the rails to pass over the rollers 46, which are then free to rotate, until it tips downwards to rest on rollers 50, 51 raised by hydraulic jacks into an operative position. The body can now be moved forwards by the rollers 46 which are driven by an hydraulic motor until angle irons 57, 58 and a latch 55 engage cross members 26, 27, 29 between the rails 25 to lock the body in position while at the same time the rollers 50, 51 are lowered so that the body 23 rests firmly on the chassis 22. This movement pivots the rear supports 30 to their stowed horizontal position, Fig. 1. The guide ramps 40 converge towards their front end so that the rails 25 are guided into correct alignment with the rollers 46 which are also flanged to provide guiding means. To unload the latch 55 is withdrawn from engagement by hydraulic means and the rollers 50, 51 are similarly raised.
Patent GB-1488546-A (GB)
Title: Ultrasonically-welded glass fibre-filled thermoplastic structures
IPC: B32B5/00
Filed: 1975-10-22
Abstract: 1488546 Seaming non-metallic sheet material BORG-WARNER CORP 22 Oct 1975 [27 Nov 1974] 43409/75 Heading B5K Two parts 10, 14 of a thermoplastic resin composition comprising 40 to 80% by weight of polyphenylene sulphide and 60 to 20% by weight of glass fibres are ultrasonically welded together, the surface of one part which is to be welded to a surface of the other part being thermally formed to have exposed glass fibres. Preferably, both surfaces to be welded have exposed glass-fibres. A specified composition comprises polyphenylene sulphide containing 30 to 50% by weight glass-fibres. More particularly, parts having glass-fibre-rich surfaces are injection moulded from a 40% glass-fibrefilled polyphenylene sulphide resin employing a barrel temperature of 570‹ F. and a mould temperature of 150‹ F. As shown, a pump impeller comprises two glass-fibre-filled polyphenylene sulphide parts 10, 14. The part 10 has a central hub 11 and arcuate vanes 12 on a surface 16. The vanes 12 have energy directing surfaces 13 moulded thereon. The part 14 has a circular opening defined by a flange 15, The parts 10, 14 are assembled with the surfaces 13 in contact with the lower surface of the part 14, are clamped together and are welded ultrasonically.
Patent GB-1151167-A (GB)
Title: An Improved Piston and Wrist Pin Assembly for an Internal Combustion Engine
IPC: F16J1/16
Filed: 1967-09-25
Abstract: 1,151,167. Two-stroke engines. McCULLOCH CORP. Sept.25, 1967 [Dec 6 1966] No.43419/67. Heading F1B. [Also in Division F2] The gudgeon pin 25 of a two-stroke crank-case compression engine is cooled by flow of the charge through a passage 22 therein. The passage 22 is open to the crank-case at one end 21 and at the other end opens into a recess 27 in the piston with a port 35 co-operating with a transfer passage 37 which is additional to the normal cylinder transfer ports 19, 20. Charge admitted to the crank-case through a reed valve 10 is compressed on the piston downstroke and flows into the cylinder partly through the ports 19, 20 and partly through the passages 22, 37, cooling and lubricating the pin 25 and its needle bearings 30, 31. In Fig.4 (not shown) the passage 22 opens on its outlet side to a passage 40 which is connected to the crankcase, the transfer flow through passage 40 producing a suction which draws some of the charge through the passage 22.
Patent GB-886570-A (GB)
Title: Bag bundling press
Inventor: ZACHOW HENRY E
IPC: B65B63/02
Filed: 1959-12-22
Abstract: 886,570. Wrapping and bundling machines. AMERICAN MANUFACTURING CO. Inc. Dec. 22, 1959, No. 43570/59. Class 94(1). A machine for compressing and facilitating the wrapping of batches of flattened paper bags comprises a backing plate over which a wrapping material is draped, an upwardly movable plunger at the base of the plate, and a platen opposed to the plunger, the batches being laid on the wrapping material over the plunger and the latter rising to compress the batches and enable the wrapping material to be placed and secured by hand into overlapping relation round the resulting bundle. The plunger 4 lies at the base of a sloping plate 2, a wrapping web R being fed from a roll to cover the plate, plunger and a platform 3. The platen 7 is movable horizontally on guide rods 9, 15 from a position opposing the plunger 4 and supported at the end opposite the guide 9 by members 12, 13, to a position clear of the plate 2 as shown in Fig. 5. With the platen 7 in operative position, the web passing between it and the plate 2, batches P are placed on the plunger which rises to force them against the platen. The plunger is connected by linkage 24, 25 to a roller 19 which takes up the web as the batches are compressed. When the plunger reaches its maximum elevation, a rotary cutter 23 severs the web, and the wrapper ends are overlapped and joined about the bundle and platen 7. The plunger descends slightly and the platen is withdrawn sideways. The plunger descends fully and the bundle is removed on to a conveyer 37 by a pusher 34. A roller 21 presses the web against a driving roller 20 to feed a new wrapper length. The amount fed is adjustable to various bundle sizes.
Patent GB-1194190-A (GB)
Title: Pressure Vessels.
IPC: F24D3/10
Filed: 1967-09-25
Abstract: 1,194,190. Pressure relieving devices. F. BRUMME, R. BRUMME, and I. LOTT, [trading as EFFBE-WERK FRITZBRUMME K.G.], 25 Sept., 1967 [2 March, 1967], No. 43610/67. Heading F2V. A flat pressure vessel, e.g. an expansion vessel for heating installations, comprises two wall parts 1 and 2 which clamp a diaphragm 3 therebetween in a fluid-tight manner, and are joined at at least one position by a fastening, e.g. a screw connection 20, which passes through the diaphragm in a fluid-tight relationship. In the embodiment described, a chamber 4 is filled with gas and a chamber 5 is filled with water, each wall part 1 and 2 is formed from a double skin 6, 7 and 8, 9, respectively, welded at 16, which have oppositely curved embossments to form cavities connected with the gas chamber 4. The wall parts are joined at their outer peripheries by a clamping ring 15. In Fig. 3 the wall parts are also joined by sleeve 21 and screws 22, and the diaphragm 3 has an integral elastic sealing sleeve 26 which is compressed when the screws 22 are tightened. The diaphragm has an annular bulge 27 to facilitate its movement. In Fig. 5 (not shown) the elastic sleeve is divided in two parts (28) and (29) which clamp the diaphragm between them. Rivets may be used to join the wall parts. The fastener may be joined to the diaphragm by an adhesive and be sealed where it passes through the wall part. Metal reinforcing rings may be placed between the sleeve parts (28) and (29) and the diaphragm 3.
Patent GB-1260159-A (GB)
Title: Automatic pattern device in a hand knitting device
IPC: D04B39/00
Filed: 1969-09-04
Abstract: 1,260,159. Knitting. AISIN SEIKI K.K. 4 Sept., 1969 [4 Sept., 1968], No. 43822/69. Headings D1C and D1K. A hand operated flat bed knitting machine comprises at least two yarn feeding eyes, 30a, 30b, for feeding two different yarns, carried on the slidable carriage 5 of the machine which also carries means 7 for detecting a pattern P carried on a fixed pattern board 3 and, in response to the pattern, moving the eyes 30a, 30b between a position with the first higher than the second and a position with the second higher than the first so that either yarn may be fed at the front of the stitch to reproduce the pattern. Board 3 is of conductive material and connected to a power source and carrying a pattern P is of insulating material, e.g. paper or coating composition. Device 6 comprises a slidable cursor 7 with contractors 8, 9 adjustable by buttons 12, 13 which slide over the pattern board 3, and selectively connected to the electric power by a micro-switch 15 controlled by a slidable grip 17 on the carriage handle. Fabric pressure device 19 has elements 19a, 19b provided with change over solenoids 20, 21 connected by connector 22. When one of the cursors 8 and 9 is conductive and engages the conducting surface, solenoid 20 is energized but when a conductive cursor 8 or 9 engages the insulating surface solenoid 21 is energized and in either event the energized solenoid attracts connector 22. Pivoted to device 19 is an arm 23 integral with a ring 23 with teeth 23b which mesh with a gear 27 pivoted with gear 28 on device 19. Gear 28 meshes with a gear 31 on the feeder 30 which carries eyes 30a, 30b. Oscillation of arm 23 oscillates feeder 30 through 180 to exchange the position of eyes 30a, 30b.
Patent GB-1074173-A (GB)
Title: Improvements in fixing devices
IPC: E06B3/60
Filed: 1965-10-18
Abstract: 1,074,173. Stud and socket fastenings; glazing. ALUMINIUM - WALZWERKE SINGEN G.m.b.H. Oct. 18, 1965 [Oct. 20, 1964], No. 44043/65. Addition to 1,030,952. Headings E1R and E2B. The device of the parent specification is modified in that the pin thereof includes a head formed by a pair of narrow channel shaped sections made of resilient material, the space between the free ends of the legs 41, 42 of the channel-shaped sections being constricted and the shank of the pin being fixed to one leg 41 with up axis at right angles to the leg. As shown, two metal strips 14 for holding a window pane 33 to a support 12 are each snap-engaged betweeen the legs 41, 42 which form part of the head of a pin 11 which is inserted into a resilient socket 10 to expand the socket into engagement with an aperture in the support 12.
Patent GB-976100-A (GB)
Title: Image-recording process
IPC: G03G13/04
Filed: 1961-12-11
Abstract: 976,100. Electro-thermographic materials. KALLE A.G. Dec. 11, 1961 [Dec. 17, 1960], No. 44171/61. Heading H1K. [Also in Division G2] Resins which on exposure to heat undergo a reduction in specific electrical resistance of at least 10n to 10<SP>n-2</SP>ohm cm. where n is 12 to 19 are polyolefines, polyvinyl chloride, polyvinyl acetate, polystyrene, polyesters, cellulose esters, colophony esters, shellac, coumarone resins, ketone resins and maleinate resins (i.e. a polyester formed by a diels-Alder reaction). The resin may be self-supporting or coated on a support and used to produce electrothermographic images (see Division G2).