baber/WOPTO huggingface dataset:
Patent GB-1184319-A (GB)
Title: Semiconductor Device Assembly
IPC: H01L23/50
Filed: 1968-12-04
Abstract: 1,184,319. Semi-conductor devices. R.C.A. CORPORATION. 4 Dec., 1968 [27 Dec., 1967], No. 57587/68. Heading H1K. A process for manufacturing a semi-conductor article, having a die 7 with a number of semiconductor active regions, on whose surface is a plurality of electrically conductive bondable lands 8 each connected to at least one active region in the die, comprises the steps of placing a metallic film framework 18 of connecting fingers 9 adjacent to the die so that each finger end 10 registers with a corresponding land 8 of the die, and bonding each finger end to its corresponding land to form a mechanical joint of good electrical conductivity, then severing the fingers from the framework prior to encapsulation or packaging to provide a die supporting a plurality of isolated outwardly extending fingers. The bond between die lands and fingers may be welded, ultrasonically bonded or soldered, the fingers being of copper, phosnic bronze, phosphor-bronze, iron, aluminium, nickel-cobaltiron alloy or nickel and the die lands being of gold, nickel or aluminium. The die, which is of silicon, contains a number of devices mutually isolated by reverse biased junctions. The semiconductor article is finally encapsulated in glass or plastics, or mounted on a header and encased A terminal lead network, Fig. 2, not shown, may be used to connect with the fingers bonded to the die lands. These fingers each have a notch on the underside adjacent to the end connecting with the lands to prevent them shortcircuiting to the edge of the die, and may have a flexible curved section to accommodate changes in length due to expansion and contraction.
Patent GB-1188668-A (GB)
Title: Thermionic Cathode
IPC: H01J1/24
Filed: 1967-12-20
Abstract: 1,188,668. Thermionic cathode constructions. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 20 Dec., 1967 [23 Dec., 1966], No. 57904/67. Heading H1D. In a thermionic cathode assembly comprising a hollow support on which is provided thermionically emissive material, the support accommodating a heater comprising a filament on which is provided a surface layer of a dark coloured material, the surface layer is separated from the filament by porous insulating material to inhibit ion conduction therein and diffusion of metal from the dark layer into it thereby allowing the cathode to be operated at up to 1200‹ C. with a potential difference of 500V between the filament and the support. The drawing illustrates a dispenser cathode having emissive material 2 on a support 1. A tungsten filament 4 is helically wound round a molybdenum core (subsequently removed at 5) which is bifilarly wound round a ceramic cylinder 6, and coated with two layers 7 and 8 of Al 2 O 3  BeO, or MgO deposited respectively by cataphoresis and immersion. The porous layer 9 is formed by immersion in a mixture of one of the above oxides and MoO 3  followed by sintering for 5 minutes at 1500‹ C. in a reducing atmosphere which converts the MoO 3  into Mo. The assembly is then immersed in a suspension of Al 2 O 3  with WO 3 , followed by heating for 2 minutes at 1600‹ C. in a reducing atmosphere which reduces the WO 3  to metallic tungsten forming the dark layer 10. The molybdenum core of the filament and the molybdenum in layer 9 are dissolved by etching so that the layer 9 is porous and contains 50-75% of cavities by volume. As alternatives, the porous layer may be formed between two solid insulating layers or the solid insulating layers may be omitted. The cathode may be used in a cathode-ray tube and may have a warming-up time of about 7 seconds.
Patent GB-1196040-A (GB)
Title: Light-Activated Deposition of Gold Films
Inventor: SCHAEFER DONALD LOUIS
IPC: C23C18/38
Filed: 1967-12-20
Abstract: 1,196,040. Semi-conductor devices; printed circuits. GENERAL ELECTRIC CO. 20 Dec., 1967 [27 Dec., 1966], No. 57955/67. Headings H1K, and H1R. [Also in Division C7] A substrate which may be a semi-conductor is brought into contact with a liquid containing a solution of Au in N-chloro-succinimide and methanol, then light is shone on the interface of the substrate and liquid, either through a transparent substrate or vertically through a small depth of liquid on to an opaque substrate, and Au is deposited on the substrate within the illuminated areas. The light may be applied in a pattern of light and dark areas produced by an image transparency having transparent and opaque areas, and may result in the deposition of a printed circuit pattern. An electric field may be applied during coating to improve edge resolution. Substrate materials include polyethylene terephalate, polyethylene, glass, quartz, Si semiconductors and Fe-base alloys.
Patent GB-1367809-A (GB)
Title: Fuel assembly flow redistribution
IPC: G21C3/322
Filed: 1972-12-15
Abstract: 1367809 Fuel elements COMBUSTION ENG Inc 15 Dec 1972 [17 Dec 1971] 58087/72 Heading G6C A fuel assembly comprises in addition to fuel rods a number of burnable poison rods and control rod guide tubes to which are attached longitudinally extending metal strips formed with punched tab projections extending into the coolant flow channels of the assembly. The projections act as means for diverting the flow of coolant fluid from one channel to another in order to promote mixing of the fluid. The strips 36 are shown in Fig. 3 as being attached, e.g. by welding, to one of the guide tubes 20 and each bear a plurality of tab projections stamped from the strip material in cantilever manner to form flow deflector vanes 38. Material between the vanes 38 is removed, as by means of punched openings 40, in order to minimize the amount of parasitic material. The vanes 38 can be simply angularly displaced from the plane of the strip (as shown), or can be additionally provided with a slight degree of twist. Those portions of each strip disposed within the spacer grids 24 of the fuel assembly should be devoid of vanes. Alternatively, the strips are formed as segments of limited length extending along only those portions of the respective fuel assembly members disposed externally of the spacer grids (Fig. 4, not shown). Mounting of the strips on the non-fuel bearing members, namely the burnable poison rods and the control rod guide tubes, is preferred since their mounting on the fuel rods of the fuel assembly would impede the heat transfer from the fuel rods.
Patent GB-1370583-A (GB)
Title: Lamp socket
IPC: F21S8/00
Filed: 1972-12-18
Abstract: 1370583 Lampholders H SCHURTER AG 18 Dec 1972 [24 Feb 1972] 58415/72 Heading H2E A lampholder, for a lamp 6 of the kind having a pair of contact pins 40, 50 and radial studs 60, comprises an electrically insulating body 1 having contact springs 4, 5 in recesses preferably for snap-retention of the lamp contact heads 40<1>, 50<1>, and a hood 7 which can be fitted over the lamp 6 and plugged into body 1, engaging the body with a snugly-fitting lip 71. The lamp studs 60 are snap-retained by keyhole-shaped slits 72 in the resilient lip 71 of the hood 7 which cannot be separated from the lamp 6 without making the lip 71 exceed the internal diameter of the body 1. The lip 71 of the hood 7 may be provided with additional slits (73, Fig. 3, not shown) to improve its compliance during engagement of the studs 60, and with a bead 7<1> to define a region of close fit in the body 1.
Patent GB-1390286-A (GB)
Title: Memory write circuits
IPC: G11C11/409
Filed: 1972-12-22
Abstract: 1390286 Data storage HONEYWELL INFORMATION SYSTEMS Inc 22 Dec 1972 [3 Jan 1972] 59461/72 Heading G4C A MOS write circuit 400 (Fig. 2) for a semiconductor memory includes a transistor gating circuit 400a responsive to a first clock signal #1 to store a signal indicative of a predetermined result and to a second clock signal #2 to compare first and second binary information and change the state of the stored signal in accordance with the result of the comparison, and a transistor driver circuit 400b responsive to a third clock signal #3 to supply to the memory system complementary output signals A, B representative of the stored signal. As described these signals are applied to buffer circuits 400a-1... 404a-n which apply signals to their output lines D/S1 ... D/Sn and function to isolate the write circuit from an associated section of the memory. At the first clock signal #1 applied to the gate electrode of a MOS FET 400.15, node 400.14 is charged negatively to a level representing a binary "1" (that is to the level of a supply voltage D DD ) provided signals DS and R/W are at a binary "1" level to select the circuit for a write operation. During the first clock signal #1, FET 400.5 also charges node 400.4 negatively and in the driver circuit, node 400.21 is charged negatively by FET 400.19. This results in a capacitor 404a.5 in the buffer circuit also being charged to render FET 404a.2 conductive and so enhance the response time of the buffer circuits. At the end of the clock signal #2 node 400.4 is conditionally discharged in dependence on the state of node 400.2 which is conditionally discharged at the end of clock signal #2 to a level representing the complement of input signal DC from a data control register. FETs 400.6-400.9 then compare the data stored on node 400.4 with input data on lines DATA IN, DATA IN as a result of which node 400.14 is conditionally discharged. At clock signal #3 FET 400.16 charges or discharges node 400.22 in accordance with the state of node 400.14 to derive an output signal at terminal B. Device 400.17 is selectively rendered conductive or non- conductive so that node 400.21 is conditionally discharged to derive the signal at terminal A. The drive sense lines which are charged negatively during the clock signal #1 (by circuitry not shown) are charged when the signal A is at a binary "1" if they have been discharged during a read interval (that is during clock signal #2). In the event of a request for a write operation being changed to a request for a read operation prior to the third clock signal the output drive circuit 400b is inhibited by devices 400.13, 400.20 being rendered conductive to discharge nodes 400.14, 400.21 to drive terminals A, B to zero.
Patent GB-1242729-A (GB)
Title: N-arylphthalamide acids and their manufacture
IPC: H01Q1/12
Filed: 1968-12-16
Abstract: 1,242,729. N-aryl phthalamide acids. CIBA GIEGY A.G. 16 Dec., 1968 [19 Dec., 1967], No. 59721/68. Heading C2C. The invention comprises compounds of the formula wherein R 1  represents -CF 3 , -OCH 3 , -SCH 3  or -SCF 3 , X represents a halogen atom or an alkyl, alkoxy, NO 2  or CF 3  and n is 0, 1, 2 or 3 with the proviso that n is at least 1 if a -CF 3 , or a -OCH 3  group is in para-position or if a -OCH 3  group is in ortho-position to the acid amide group, and their salts with inorganic and organic bases, e.g. with alkali metal and ammonium hydroxides, aliphatic amines, alkanolamines, piperdine and morpholine. They are prepared by reacting phthalic acid or its anhydride with an appropriately substituted aniline in the melt or in a solvent, and if a phthalimide is formed as an intermediate hydrolysing this, e.g. with alkali and liberating the final product by means of an acid.
Patent GB-1385810-A (GB)
Title: Csh i and csh ii as a filler or pigment
IPC: C08K3/34
Filed: 1972-12-28
Abstract: 1385810 Calcium hydrosilicate REIMBOLD & STRICK 28 Dec 1972 59943/72 Heading ClA [Also in Divisions C3 and D2] Calcium hydrosilicate phases CSHI and/or CSHII of specific B.E.T. surface area of 1-150 m.<SP>2</SP>/g. is/are added as a filler or pigment to rubber, plastics, coating compositions or paper (e.g. water paints, paints, printing inks, building materials, synthetic leather, cigarette paper or printing paper). The calcium hydrosilicate phases may be of grain size 0.1-1 Á and may be prepared from aqueous suspensions containing silica and calcium oxide in a molar ratio of 0À7 to 1À3 which may additionally contain soluble alkali metal and alkaline earth metal salts by hydrothermal treatment (e.g. 2-4 hours at 10-16 or 16-20 atmospheres saturated steam).
Patent GB-1369477-A (GB)
Title: Drives for open-end spinning machines
IPC: D01H4/12
Filed: 1971-12-23
Abstract: 1369477 Open end spinning WILHELM STAHLECKER GmbH 23 Dec 1971 [24 Dec 1970] 60058/71 Heading DID [Also in Division F2] An open-end spinning machine includes means to engage a brake with the rotor shaft simultaneously with the disengagement of a friction drive wheel from the shaft. When arm 4, Fig. 1, is pivoted about pivot 5 to raise drive wheel 1 from rotor shaft 9, the armmounted screw 4, 5 is lowered to bear on cantilever spring 12 to simultaneously press spring-mounted brake shoes 12,1 onto the shaft. The arm is pivoted by the opening of the rotor cover. The shaft is supported in the nip of two pairs of discs 10, 11, and the wheel is pressed onto the shaft by the weight of armmounted drive motor 3 and by spring 8. In a second embodiment, Fig. 4, the rotation of member 23 raises arm 4 about pivot 17.3, and bears on spring 12 to simultaneously press shoes 12.1 onto shaft 9. The arm-mounted drive wheel is rotated by belt 20. In a third embodiment, Fig. 7, arm 4 is raised about pivot 5 by member 15,5x to lift belt-driven drive wheel 1 from shaft 9, and arm-mounted member 4c is lowered to bear on spring 12 to simultaneously press brake shoes 12.2 onto shaft 9. In a fourth embodiment (Fig. 5, not shown) a vertical rotor shaft is mounted in air bearings, and when a friction drive wheel is moved from engagement with a shaft collar brake shoes are simultaneously pressed against the shaft. The drive wheel, the movable mounting of the drive wheel, the rotor shaft bearings, the brake and a thrust bearing of one shaft and may be removed as a unit from the machine. To impart thrust to the shaft 9, the axes of the discs 10,11 or the axis of the drive wheel may be supported non-parallel to the shaft axes, or the discs may have a tapered periphery. A thrust bearing for the shaft 9 may comprise, Fig. 3, a ring 24 rotating in sump 18.1 and supported by axle 27 and members 25, 26.
Patent GB-1243639-A (GB)
Title: Improvements in or relating to a method for pickling coils
IPC: C23G3/00
Filed: 1968-12-19
Abstract: 1,243,639. Pickling metal coils. VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE A. G. Dec. 19, 1968 [Jan. 11, 1968], No. 60486/68. Heading C7E. A method of pickling coils of strip or wire 7 in which the coils are supported on a carrier 5 which is vibrated e.g. by unbalanced motors 4, so that the frequency of the vibrations are above the natural frequencies of the coil windings and the amplitude is greater than the rate of fall of the coils so that the coils are periodically separated from the support. The coils are preferably supported on the fluted hook 6 on support 5 which is mounted on springs 3 or a rubber suspension and is directly connected to the out of balance motors 4. The frequency of vibration is less than 16 Hz.
Patent GB-1249150-A (GB)
Title: Apparatus for monitoring heart blood pressure
IPC: A61B5/0215
Filed: 1968-12-24
Abstract: 1,249,150. Measuring blood pressure. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 24 Dec., 1968 [30 Dec., 1967], No. 61320/68. Heading ASK. Apparatus for monitoring blood pressure continuously comprises a pressure transducer, for converting variations in the pressure of a liquid in a channel 8 into corresponding variations in an electrical signal, said pressure transducer being connected via said channel 8 to a catheter tube 7, a liquid container 9, having means for modifying the pressure of liquid contained therein, which is connected to said channel either through a main communication path 14 or via a capillary tube 16. The liquid container 9 has a flexible wall surrounded by an inflatable sleeve 10 to which air is supplied by a rubber bellows 11. Liquid passes from the container through a flexible tube 13 to a valve 18, which either directs liquid through tube 14, or capillary 16, or both. The catheter 7 is connected by a valve 19 either to the channel 8, or to a suction duct 20 for withdrawing a quantity of blood for testing, or to both the channel 8 and the suction duct 20 for evacuating air from the apparatus prior to use. In use the valve 18 connects the capillary tube 16 to the liquid container to maintain a small flow of liquid (1-2 mls per hour) through the capillary and catheter to prevent the catheter end from becoming blocked by coagulation of blood.
Patent GB-1335577-A (GB)
Title: Package formation
IPC: B29C49/38
Filed: 1970-12-31
Abstract: 1335577 Packaging apparatus MEAD CORP 31 Dec 1970 [24 April 1970] 62083/70 Heading B8C In a packaging machine, two heat sealable films F1, F2 are vacuum drawn into half-shells 23 which are pivotally interconnected to form two endless chains 17, 18 having working reaches 44, 45 in which the shells 23 of each chain are juxtaposed so that the films F1, F2 oppose one another with their edges in contact, articles, such as groups of cans C, are fed between the chains 17, 18, and the edges of the films, F1, F2 are heat sealed together to form a chain of packages. The packages are then passed through a heat shrink tunnel 57 and separated by a cutter, not shown. A film feed structure 47 positions the film F1 against the shells 23 of the chain 18 prior to vacuum forming, a similar structure (not shown) being provided for the film F2. The structure comprises endless film carrying chains 47A, 47B trained around back up plates 48A, 48B, chains and an endless chain 55 carrying lugs 51 which urge the film against the ends of each shell 23. The chains are supported by top and bottom plates 66, 67 which are connected to further plates 60, 63 by lost motion connections 68, 69, the plates 60, 63 being connected to the machine frame. A pair of expansible fluid carrying-tubes 72, 73 are sandwiched between the plates 67, 60 and 66, 63 to urge the chains against the shells 23. Each shell 23 is perforated and connected to a vacuum manifold 37 by flexible pipes 36. Along the working reaches 44, 45, rollers 42A, 43A on the shells 23 engage spring loaded tracks 23A to urge the shells together. The cans C are fed on a conveyer 8A and separated into two rows by a wedge 10A, the two rows being recombined in groups by starwheels 9, 10 and accelerators 11, 12. The sheets may be heated prior to vacuum drawing.
Patent GB-653855-A (GB)
Abstract: 653,855. Protective covers for hose couplings. BRITISH TYRE & RUBBER CO., Ltd., BEASLEY, T. A., and BOWDEN, W. March 31, 1948, Nos. 9142 and 28729. [Class 99(i) and 99(ii)] In a fire-resisting hose, especially for use in aircraft, having a metallic coupling at each or either end and a fire-resisting sleeve 5 fitted over the coupling where it is attached to the hose, an air space or air spaces are provided between the sleeve and the coupling. The hose is retained between a ferrule 4 and an insert 2, and the sleeve elastically grips the ferrule or is retained thereon by a clip or binding means. The sleeve comprises a layer of asbestos fabric or cord &c. surrounded by rubber, and an inner layer of rubber may be added. The rubber may contain a filler of asbestos. The air spaces preferably communicate with the atmosphere and may be provided between the sleeve and coupling. The spaces are formed by grooves &c. in the inner layer which extend axially, circumferentially or helically. Alternatively bosses are provided on the sleeve, which may be of truncated conical or pyramid form. Specifications 540,489, 540,490, 540,491, 540,492, 610,426 and 634,405, are referred to.
Patent GB-676211-A (GB)
Abstract: 676,211. Refractory compositions. A.R.B.E.D. ACIERIES REUNIES DE BURBACH-EICH-DUDELANGE SOC. ANON. Feb, 7, 1949 [March 12, 1948], No. 3352/49. Class 22 Refractory compositions containing dolomite and/or magnesia and organic binders are crushed and separated into a coarse fraction which is contacted with an excess of the binder and a fine fraction which is then mixed with the impregnated coarse fraction and thereby is itself impregnated. All or part of the excess of the binder may be removed from the coarse fraction by mechanical means and/or evaporation before the fine fraction is added to the coarse fraction. A further amount of binder may be added to the mixture. Binders specified are liquid tar, oil, viscous tar or pitch singly or successively. Impregnation may be effected under pressure, and the dolomite or magnesia may be replaced by other refractory materials. Carbon, graphite, lime or fluxes may be included in the mixture. The Specification as open to inspection under Sect. 91, comprises also the subjectmatter of Specification 676,290. This subject-matter does not appear in the Specification as accepted.
Patent GB-689942-A (GB)
Abstract: 689,942. Controlling clutches. NATIONAL CASH REGISTER CO. April 16, 1951 [April 20,1950], No. 8774/51. Class 80 (ii). A contracting coil clutch comprises a spring 20 of rectangular section so wound that in its free state it will grip the outer surface of a driving member 13, a stop 27 being movable into the path of one end of the spring to release the clutch. One end of the coil 20 is secured to a collar 21 attached to a driven member 14 which carries a pinion 16, the collar 21 extending at 22 substantially over the length of the coil 20. The driving member 13, which is driven through worm gearing 11, 12, is mounted coaxially with the member 14 on a stud 17 and its surface is grooved at 35 to increase the coil grip and, by retention of lubricant, to reduce wear. The stop 27, which is carried by a plate 24 rotatably mounted on the collar 21, comprises a portion 36 adapted to engage the end 31 of a pivoted lever 32 in the released position of the clutch shown in Fig. 1. The end 31 is bifurcated and also engages a shoulder on a plate 30 fixed to the collar 21 in order to locate definitely the driven member when stationary. A torsion spring 28 surrounding the portion 22 of the collar 21 acts at one end on the stop 27 and at the other on a stud 29 carried by the plate 30 to tend to move the stop away from the end of the coil 20 which would then be free to grip the driving member. A stop 34 on the plate 24 limits relative movement of the plates 24, 30 by engaging the stud 29. When a spring 45 is allowed, by rotation of a release shaft 40 in known manner; to rotate the lever 32 out of engagement with the portion 36, the spring 28 rotates the plate 24 thereby moving the stop 27 to allow the coil 20 to engage the driving member, and also by means of a cam portion 50 of the plate rotates a lever 52 to close contacts 59, 60 and energise the driving motor. A roller 51 on the arm 52 spans and follows the peripheries of the plates 24, 30 thus maintaining the motor circuit closed until the lever 32 is restored (in known manner) to the position shown. When the portion 36 abuts the end 31 of the lever 32 the plate. 24 is arrested and the clutch is freed but the plate 30 continues to rotate, stressing the spring 28, until the shoulder thereon also abuts the end 31 and the roller 51 rides down a cam portion 65 of the plate 30 to allow the contacts 59, 60 to open and stop the driving motor.
Patent GB-2001490-A (GB)
Title: Infinitely variable electric motor drive unit
IPC: H02P29/00
Filed: 1978-07-19
Abstract: A drive motor 2 which may be for a paper processing machine, is controlled by a regulating transformer 5 supplying regulated power to the motor, a servomotor 4 which controls the regulating transformer and a control and regulating electronics system 1, 3 which in turn controls the servomotor. A switch 10 is provided on the regulating transformer 5 to limit the speed of the motor to creeping speed, should the safety cover of the machine be off. <IMAGE>
Patent GB-2026868-A (GB)
Title: Contact lenses sterilizer
IPC: A61L12/04
Filed: 1978-08-01
Abstract: A sterilizer for contact lenses comprises a capsule 11 adapted to both carry and sterilize a single set of contact lenses. The sterilizer includes a well 20 adapted to receive the capsule, and when the well is heated sterilizing action occurs within the capsule. A cover 18 is locked into a closed position to prohibit access to the capsule and well when the well is heated to an elevated temperature. <IMAGE>