baber/WOPTO huggingface dataset:
Patent GB-1506125-A (GB)
Title: Glassmoulded type semiconductor device
IPC: H01L23/492
Filed: 1976-04-05
Abstract: 1506125 Semiconductor devices HITACHI Ltd 5 April 1976 [7 April 1975 (2)] 13768/76 Heading H1K In a glass encapsulated semiconductor device 16 having a surface p-n junction 16alpha, connections to the device are made via lead electrodes 11, 12 having a coefficient of thermal expansion greater than that of the semiconductor device and which are soft soldered to the device. The glass 17, which acts as a passivating layer adhering to the p-n junction surface, has a coefficient of thermal expansion similar to that of the semiconductor device. The electrodes have enlarged heads 11alpha, 12a soldered or welded to portions 14, 15, which are soldered to the end faces of the semiconductor device 16. A Ni layer 13, on the electrode surfaces, prevents glass adhering to the leads during encapsulation, and leaves gaps A, B, C, D which relieve stress on the glass during encapsulation. The flanges 11b, 12b and the enlarged heads 11alpha, 12a form gas-tight seals to the glass when the electrodes 11, 12 contract on cooling, following encapsulation. In an alternative embodiment, Fig. 5 (not shown), the enlarged heads 14, 15 are soldered directly to the device. In a further embodiment, Fig. 6 (not shown), the enlarged heads take a frusto-conical form, on the surface of which are recesses or projections which provide gastight seals between the leads and the encapsulating glass, under conditions of torsional stress.
Patent GB-1421576-A (GB)
Title: Continuously operable apparatus for crystallisation character ised in having a device for supplying the same
IPC: C13B30/02
Filed: 1973-03-22
Abstract: 1421576 Evaporative crystallization SOC FIVES LILLE-CAIL 22 March 1973 [29 March 1972] 13935/73 Heading BIG  Apparatus for crystallizing by evaporation and which includes regulating the supply of sub-saturated solution and also washing the inner walls of the apparatus with this solution comprises a vertically disposed closed cylindrical tank in whioh the lower portion of the tank is divided into a plurality of compartments by radial partitions and wherein successive compartments communicate with each other by apertures formed in the partitions except for the outlet compartment and that one situated immediately after it and a device for supplying sub-saturated solution comprising a pipe with a plurality of holes spaced along the pipe from which is projected the solution, means for rotating the pipe about a vertical axis above partitions and means for varying in accordance with the position of the pipe, the volume of solution which the pipe discharges into each compartment. The solution dischaged may be varied by altering the rotational speed of the pipe or the supply rate of the solution to the pipe in accordance with a predetermined cycle. The rotational speed of the pipe when driven by a motor may be controlled by a rotary switch on an arm rotating synchronously with the pipe and actuating fixed contact makers as the pipe passes from compartment to compartment. The pipe may also be driven by a two speed motor adjustable for each compartment. The rotational speed of the pipe may also be varied by a suitably profiled cam fixed on the shaft of the pipe. The volume of solution supplied to the pipe may be varied by a valve arranged in the supply conduit for the pipe. Figures 1 and 2 show respectively a vertical section of a crystallization apparatus and device, and a cross-section of the apparatus, wherein tank 10 is divided into eight compartments by partitions 15 which contain aperatures 28 except in compartments 0 and 7. In compartment 0 the solution is concentrated by heater 30, until saturated, whilst from 7 the desired crystalline material is recovered from conduit 24. The jet pipe 32 is rotated by a geared motor (not shown) and distributes the unsaturated solution successively and periodically into all the compartments.
Patent GB-1089632-A (GB)
Title: Dispensing spigot device for containers of liquids
Inventor: SCHOLLE WILLIAM RAYMOND
IPC: B65D47/28
Filed: 1965-04-01
Abstract: 1,089,632. Container closures. SCHOLLE CONTAINER CORPORATION. April 1, 1965, No. 13941/65. Heading B8T. [Also in Division F2] A spigot 26 comprising a tube 27 closed at one end and open at the other has a hole (28), Fig. 2 (not shown), formed in its side near the closed end, the tube reciprocating in a sleeve so that the hole is alternately opened and closed, an annular flange 24 carried by the sleeve connecting the spigot to the opening (13) of a plastics bag 10. The opening (13) of the plastics bag 10, which is placed inside a paperboard container 12, has a nozzle (14), Fig. 2 (not shown), secured to it by a flange (15). The outer end of the nozzle (14) has screw threads (19), Fig. 6 (not shown), which engage either the threads (20) of a sealing cap (21) or alternatively threads (25), Fig. 7 (not shown), on the flange 24 of the spigot 26, which is preferably made of plastics. Snap fit locking means may be used as an alternative to the screw-threads. A hand hold 29 is attached to the tube 27 and on withdrawing the tube against the restraining force of a spring 35, located in the rear of the tube by a bayonet slot (36), Fig. 8 (not shown), the hole (28) is uncovered to discharge the container contents. On releasing the hand hold 29 the spring 35 returns the tube 27 to its initial position, thereby closing the hole (28), and a flange 30 squashes an " O " ring 31 against the end (34), Fig. 2 (not shown), of the sleeve (23), thereby forming a liquid-tight seal. Alternatively the seal may be effected by tapering the tube 27 so that the sleeve (23) wedges on to it.
Patent GB-698539-A (GB)
Title: Expansible connecting element
IPC: F23R3/08
Filed: 1952-06-03
Abstract: 698,539. Welding by pressure. SVENSKA TURBINFABRIKS AKTIEBOLAGET LJUNGSTROM. June 3, 1952 [Aug. 23, 1951], No. 13965/52. Class 83 (iv). [Also in Groups XXII and XXVIII] Two cylinders 1, 2 are connected by an expansion joint comprising a slotted ring 4 which is welded to the cylinders where shown. Electrodes may be placed outside surface 5 and inside the cylinder 1 near the place 6, a connecting piece bridging the gap. Beryllium bronze may be used.
Patent GB-884232-A (GB)
Title: Improvements in porous plastic sheeting
Inventor: HONEY ERIC MAURICE O'CONOR
IPC: B29C67/20
Filed: 1958-05-02
Abstract: Microporous sheets are obtained by mixing polyvinyl chloride powder of up to 150m  diameter, a plasticizer and powdered sodium chloride in an amount at least equal to 1 1/2 to not more than 4 times the weight of polyvinyl chloride, the particle size of the sodium chloride for a sheet of 1 to 5 mils. thickness being 5 to 10 m , and for a sheet of 6 mils. thickness and above, 8010 to m , and a volatile solvent for the plasticizer which is not a solvent for the polyvinyl chloride, thereby producing a cream which is spread on a carrier, the solvent removed at 90 DEG  C., the sheet obtained heated to cause gelling, then cooled, the sodium chloride leached out and the sheet dried.  Solvents specified are white spirit and naphtha. Specifications 565,022, 727,679 and 844,801 are referred to.ALSO:Microporous sheets, are obtained by mixing polyvinyl chloride powder of up to 150 m  diameter, a plasticizer and powdered sodium chloride in an amount at least equal to one and a half to not more than four times the weight of the polyvinyl chloride, the particle size of the sodium chloride for a sheet of 1 to 5 mils thickness being 5 to 10m , and for a sheet of 6 mils thickness and above, 10 to 80 m , and a volatile solvent for the plasticizer which is not a solvent for the polyvinyl chloride, thereby producing a cream which is spread on a carrier, the solvent removed at 90 DEG C., the sheet obtained heated to cause gelling, then cooled, the sodium chloride leached out and the sheet dried.  The specified solvents are white spirit or naphtha.  The gelling results in the production of a pervious sheet so that the salt is readily leached out. Specifications 565,022, 727,679 and 844,801 are referred to.
Patent GB-1442294-A (GB)
Title: Method and apparatus for vapour depositing pyrolytic graphite on porous sheets of carbon material
IPC: D01F9/133
Filed: 1975-04-04
Abstract: 1442294 Depositing pyrolytic carbon PFIZER Inc 4 April 1975 [19 June 1974] 14023/75 Heading C7F [Also in Division Cl] A sheet 12 of porous fibrous carbon is infiltrated with pyrolytic graphite by passing it through a vacuum chamber 18, and supplying hydrocarbon gas, e.g. acetylne, natural gas or methane, which may contain a diluent, e.g. hydrogen, nitrogen, ammonia or argon, through a perforated guideplate 36. The sheet, passes over a heated perforated plate 40. Auxiliary vacuum chambers 22, 24, are provided at the ends of the chamber 18. The deposition temperature is 2000 to 2400‹C.
Patent GB-140362-A (GB)
Abstract: 140,362. Ruthardt & Co. March 19, 1919, [Convention date]. Rotary interrupters for use in magneto ignition apparatus, and o: the type wherein a roller a deviated by a cam e on a stationary adjustable casing enters between a guide b and a spring d to separate the contacts, have the roller of annular form loosely surrounding a pivot bolt g and held up to the cam and bolt by a spring k. The spring is fastened inside the roller and ensures a wiping or rolling movement on the cam and guide. The movable contact i is carried by the spring d, and the fixed adjustable contact h by the guide b. A plate m lies over the roller and prevents its axial displacement.
Patent GB-557203-A (GB)
Title: Improvements in electric induction heating apparatus
IPC: H05B6/62
Filed: 1942-10-08
Abstract: 557,203. Electric induction heating. RADIO CORPORATION OF AMERICA. Oct. 8, 1942, No. 14149. Convention date, Nov. 29, 1941. [Class 39 (iii)] In apparatus for gluing together laminated material such as wood between press plates 9, 15, connected to a source of high frequency electric supply of the order of 10 megacycles, standing waves may be set up in the plates if their length is comparable with that of the supply frequency. This effect is avoided by the provision of a plurality of inductors 23 shunted across the plates at spaced points. The inductors may comprise copper tubes 25, 27 bridged by an adjustable link 29 so that the network may be tuned to the operating frequency. An even distribution of dielectric loss in the laminated structure is thereby obtained, and the impedance of the load is raised to a value which matches that of the input line 21. To prevent a large current flowing through the head 5 and frame 3, a number of similar adjustable inductors 30 may be shunted across the head 5 and plate 15, which are separated by a wood block 17. If the press plates are wide, inductors may be placed along both longitudinal edges.
Patent GB-1389822-A (GB)
Title: Substituted benzopyrans and processes for their preparation
IPC: C07D311/16
Filed: 1971-05-11
Abstract: 1389822 Substituted benzopyrans BEECHAM GROUP Ltd 26 April 1972 [11 May 1971] 14226/71 Heading C2C Novel compounds of the Formula (II) wherein R 1  and R 2  which may be the same or different are each a C 1-6  alkyl group, R 3  is a non-aromatic C 1-12  hydrocarbon group, R 4  is an optionally substituted phenyl group, and X is a hydrogen atom, a salting ion or an acyl or inorganic ester group, are obtained (a) by reaction of a chromanone of the Formula (IV) or salts thereof with an organometallic compound of formula R 4 Y, where Y is an alkali metal or magnesium-halogen group, treating with a proton source to liberate a compound of Formula (V) and allowing or causing the dehydration of this compound to yield (II), or (b) by reaction of an organometallic compound R 1 Y where Y is an alkali metal or magnesium halide upon a coumarin (VII) treating the resulting intermediate with a proton source to yield a compound of the Formula (VIII)  and causing or allowing the dehydration of VIII to yield II, and therafter, if required in either case, converting one group R 4  or X to another group R 4  or X by known methods. Intermediates (VII), may be obtained by reaction of a #-benzoyl acetate R 4 .CO.CH 2 .CO 2 R 5  (where R 5  is an ester forming group) with a 3- R3-substituted resorcinol in the presence of a condensing agent. Pharmaceutical compositions, having action on the central nervous system, comprise compounds of Formula (II) together with a pharmaceutical carrier in forms for oral administration.
Patent GB-929888-A (GB)
Title: Improvements in and relating to electric disconnecting switches
IPC: H01H31/28
Filed: 1960-04-22
Abstract: 929,888. Air-break switches; contact members for switches. ELEKTROTECHNICKE ZAVODY JULIA FUCIKA NARODNI PODNIK. April 22, 1960 [April 22, 1959], No. 14239/60. Class 38 (5). In a disconnecting switch having a pair of contact blades 7 pivoted on a fixed contact member 5 and co-operating with a further fixed contact member 5, contact pressure is produced on completion of the closing movement by means of a screw mechanism actuated by the operating mechanism of the switch. To open the switch shown, the operating shaft 3 is turned and initially through linkage 4 turns a lever 12 until it abuts stops 16 fixed to the blades 7. This movement of the lever 12 turns a bolt 9 which has right-hand and lefthand threads at its ends engaging nuts 10, 11 fixed to clamping members 8. Thus the initial movement releases the contact pressure applied by the members 8 and the subsequent movement of the lever 12 abutting the stops 16 opens the switch. As the pivotal opening movement of the blades commences, a lever 13 is moved by a spring 15 until it abuts stops 14 on the blades 7 and locks the lever 12 to the blades 7. This enables the subsequent returning of the blades 7 to the closed position before the lever 12 is free to turn the bolt 9 to apply pressure through the members 8.
Patent GB-830413-A (GB)
Title: Improvements in or relating to soldering
IPC: B23K35/34
Filed: 1956-05-08
Abstract: 830,413. Soldering. PHILCO CORPORATION. May 8, 1956 [May 23, 1955], No. 14240/56. Drawings to Specification. Class 83 (4). [Also in Group XXXVI] A wire or strip of copper, nickel, aluminium, steel, iron, platinum, iridium, or their alloys is coated at one end with a bead of tin, indium, or cadmium-indium alloy by electrolysis so that the metal bead is electrodeposited in molten form (see Group XXXVI), and the wire or strip thus " tinned " is soldered to a metal surface by application of heat to melt the soldering metal. Specifications 830,411, [Group XXXVI], and 830,412 are referred to.
Patent GB-290602-A (GB)
Title: Improvements in and relating to the vulcanization of rubber
IPC: C08K3/02
Filed: 1928-05-15
Abstract: 290,602. British Thomson-Houston Co., Ltd., (Assignees of Nordlander, B. W.). May 16, 1927, [Convention date]. Vulcanizing-compositions; latex, coagulating.- An amorphous compound or mixture of sulphur and selenium or tellurium is used for vulcanizing rubber. The amorphous composition may be formed by fusing together 55 parts of selenium and 45 parts of sulphur and maintaining the resulting plastic mass at a temperature slightly below its fusion point for about two hours. The hard brittle amorphous substance so produced is finely ground for instance in a colloid mill. Another method consists in adding selenious acid to water through which hydrogen sulphide is being slowly bubbled. Preferably a coagulant such as aluminium chloride or barium chloride is present in the water. The precipitate formed is a stable amorphous powder. The amorphous sulphur composition may be used with or without accelerators and with other usual compounding In an example rubber containing 1 per cent of amorphous sulphur composition, 10 per cent of zinc oxide and 40 per cent of whiting is vulcanized by heating to 80-90‹ C. for 2 to 3 hours. In another example the finely divided amorphous sulphur composition is introduced, preferably with an accelerator, into a colloidal suspension of rubber latex in water and the resulting mixture is deposited electrically.
Patent GB-673044-A (GB)
Title: Improvements relating to labyrinth packings
IPC: F16J15/44
Filed: 1950-06-08
Abstract: 673,044. Labyrinth packings. BRITISH THOMSON-HOUSTON CO., Ltd. June 8, 1950 [June 14, 1949], No. 14336/50. Class 122(v) A labyrinth packing between a rotary member 1 and a surrounding stationary member 2, which members have different coefficients of expansion, comprises a stationary annular baffle member having surfaces 11, 12 co-operating with adjacent surfaces 14, 15 on the rotary member to form a labyrinth and consisting of a plurality of arcuate sections 4, 5, 6, 7, urged by spring means 22 towards the rotary member but maintained in spaced relationship thereto by supporting surfaces 20, on the member 2, which engage projections 17 on the baffle member. the latter having the same coefficient of expansion as the rotary member and its arcuate sections being of such a predetermined length that their radial end surfaces 27, 28 abut at a predetermined temperature between the normal working temperature and the ambient temperature, whereby the arcuate sections are supported by the surfaces 20 only at temperatures above the said predetermined temperature whilst the radial clearance between the co-operating surfaces is maintained substantially constant below the said predetermined temperature.
Patent GB-184296-A (GB)
Title: System for transmitting energy by means of steam working in a closed cycle
IPC: F01K1/02
Filed: 1921-05-23
Abstract: 184,296. Cristiani, S., and Sacerdote, S. May 23, 1921. Addition to 171,967. Power-generating systems.- To increase the efficiency of the system described in the parent Specification, the low-pressure reservoir is cooled by a current of air produced by the motion of the locomotive or a fan, and the high-pressure reservoir is heated by the internal-combustion engine exhaust or by a separate source of heat, e.g. a grate burning fuel, or an electric radiator.
Patent GB-950983-A (GB)
Title: Damping vibrations in chimneys, towers, or masts
IPC: E04H12/28
Filed: 1961-04-20
Abstract: 950,983. Frictional vibration-dampers. SULZER FRERES S.A. April 20, 1961 (May 6, 1960], No. 14378/61. Heading F2S. [Also in Division F4] In order to prevent the growth of oscillations at the natural frequency of tall sheet metal structures such as chimneys, towers, masts, &c., due e.g. to eddy concavitations produced by winds a frictional dynamic-oscillation damper is fitted to the top of the structure. As shown in Fig. 1 a vibration damper 2, secured to the top of a chimney 1 having a heat insulation layer 12 located between an outer skin 10 and a lining 11, comprises an annular base plate 14 which is secured to the skin 10 by brackets 13 and freely supports an inertia ring 16. The latter, which is sub-divided into several segments 24 interconnected by pins 26 engaging loosely within apertures 25 to ensure uniform distribution of the friction forces, carries spring-loaded buffers 17, 18 which prevent it from colliding against the skin 10 and a cylindrical outer cover 15. Small gaps 29 between the edges of the base plate 14 and the members 10, 15 provide an escape for abraded particles. The damper has a top cover 22. The buffers 17, 18 may be replaced by spring strips 27, Fig. 3. In a modification, Fig. 5 (not shown), the inertia mass consists of a number of segmental U-shaped damping elements which loosely straddle a fixed rigid ring the base plate being in the form of a grating, and corrugated steel buffer strips being connected around the skin 10 and the cylindrical wall 15. In a combined liquid and friction damping arrangement, Fig. 7, a casing 40, wholly or partly filled with liquid e.g. oil, contains an I-section damping mass. A liquid friction damper is described which comprises a fluid-tight annular vessel having perforated upright and radially-extending plates the sectors between which are filled e.g. with steel swarf. The liquid can be loaded with suspensible particles. Sand, metal scraps, &c., and the other non-suspensible particles can also be added to the liquid in which case the loose fill can be omitted. In a further modification, Fig. 9, sheet metal rings 61 welded to the skin 10 support rings 62 spaced from the chimney lining 11 which is loaded by the insulation layer 12. In a variant of this arrangement brackets on the lining 11 support a stack of rings 71, 72, Fig. 10. The damper may be in the form of a number of circumferentially-spaced radially-extending hydraulic piston and cylinder units with, or without, conventional valve systems. The piston in each cylinder may be replaced by a ball.
Patent GB-119679-A (GB)
Title: Improvements relating to Swing Gearing for Slubbing, Roving and like Frames.
Inventor: WELFFENS EMILE JOHN
IPC: D01H1/20
Filed: 1917-10-05
Abstract: 119,679. Welffens, E. J. Oct. 5, 1917. Driving-arrangements. - Relates to chain swing gearing such as is decribed in Specification 2716/15, and consists in means for damping out shocks, vibrations, and irregularities due to variation in load, the reversal of motion of the bobbin rail, faulty alinement or play in the guides of the bobbin rail &c. In swings with a single driving-chain, the jockey pulley 1 which acts on the driving-side of the chain 6, is made elastic by means of springs or weights, while the jockey pulley 5 which acts on the slack side of the chain is urged towards the first jockey pulley by similar means. Various arrangements are described. As shown in Fig. II., the pulley 1 is carried by a, bell-crank lever 9 mounted on the end of the link 2 which turns about the axle of the driven wheel 3, the free end of the lever 9 being connected with the lever 2 by an adjustable spring 10, while the jockey pulley 5 acting on the slack side of the chain is connected by a rod 14 and adjustable spring 12 with the bell-crank lever 9. The jockey pulley 1 is guided along a cam 7 constructed by methods such as are described in Specification 2716/15. The spring 12 may be dispensed with, the spring 10 being connected with the free end of the lever carrying the jockey pulley 5, instead of with the link 2. Or the link 2 may be in two parts connected together by a spring so as to be expansible, the jockey pulley 5 being resiliently held in the raised position by a weighted cord passing over a pulley on the axle of the pulley 1. Other arrangements described illustrate the application of the invention to swings with two driving- chains. In one of them, the driving-wheel is mounted in a split bearing carried in a gap in the link 2, and is provided with a spring so that the link can slide resiliently on the bearing. As shown in Fig. VII., the link 2 is pivoted to a second link 9, which is loose on the driving-shaft and is connected to the bent end of the link 2 by a spring 10. In a further arrangement, the link 2 is carried by an eccentric on the driving-shaft, the eccentric being constrained to rotate in one direction by a spring.
Patent GB-456825-A (GB)
Title: Improvements in heat conducting walls
IPC: C04B35/107
Filed: 1935-05-16
Abstract: A heat-conducting wall for furnaces, ovens, or the like consists of material fused and cast in the molten condition and having an alumina content of at least 85 per cent.  Pure alumina or alumina mixed with 5-15 per cent alkaline earth oxides may be used, e.g. a spinel consisting of 72 per cent of alumina and 28 per cent of magnesia. The material may include 5 per cent of soda ash and, as impurities remaining in fused bauxite, small amounts of silica, titanium oxide and iron oxide.  Specifications 265,847, [Class 22], and 409,315 are referred to.
Patent GB-1435656-A (GB)
Title: Safety table for a skinning machine
IPC: A22C17/12
Filed: 1974-04-01
Abstract: 1435656 Skinning meat cuts TOWNSEND ENG CO 1 April 1974 [29 Nov 1973] 14400/74 Heading A2U A safety table 32 for use with a meat skinning machine 10 comprises (a) a table surface 36, (b) a second surface 38 abutting the table surface at a common edge and (c) mounting means 64 for securing said table to a meat skinning machine so that the table surface is at a higher level than the skinning blade and the second surface slopes down toward the blade. The table may be raised, lowered and tilted by nuts which slide in slots 48 and 50.