baber/WOPTO huggingface dataset:
Patent GB-1139543-A (GB)
Title: Construction of semiconductor junction diodes
Inventor: SETCHFIELD JOHN BERNARD
IPC: H01L23/051
Filed: 1966-05-23
Abstract: 1,139,543. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. 19 May, 1967 [23 May, 1966], No. 22861/66. Heading H1K. A semi-conductor junction diode is mounted between the conductors of a strip transmisson line and encapsulated. A tunnel diode is produced by soldering a gold plated "Kovar" (Registered Trade Mark) disc (9) to a gold plated Kovar strip (10), mounting a germanium die (11) on disc (9) by thermal bonding with the gold, placing an arsenic-doped tin dot (12) on the die (11), heating in an atmosphere of argon or hydrogen containing hydrogen chloride gas to cause the tin to wet the germanium and form into a hemisphere, and heating in an atmosphere of pure argon or hydrogen to a higher temperature to alloy the dot to the semi-conductor, Figs. 2 and 3 (not shown). A second gold plated Kovar strip (13) is placed on a heater (14) and a dielectric spacer (15) coated with an adhesive is used to support the diode assembly so that the alloyed dot (12) is bonded to strip (13), the two Kovar strips (10, 13) extending parallel to one another to form a strip transmission line, Fig. 4 (not shown). The residual volume between the strips (10, 13) is filled with a resin (16) which is cured to encapsulate the diode, Fig. 5 (not shown). The end of the assembly is then eroded, for example by lapping, to reduce the area of the alloyed junction as shown in Fig. 6. The dielectric spacer 15 and the resin 16 are of the same material which may be a siliconloaded epoxide resin. The semi-conductor diode may be a varactor diode instead of a tunnel diode.
Patent GB-376979-A (GB)
Title: Improvements in feed-apparatus for conveying material from weighing and like machines to packeting and like machines
IPC: B65B39/00
Filed: 1931-08-31
Abstract: 376,979. Weighing-apparatus fitted to packeting machines. POPOV, V. D., 743, Zelena U1, Bubenec, Prague. Aug. 13, 1931, No. 22908. Convention date; Aug. 23, 1930. [Class 143.] The apparatus conveys a portion of material from an automatic weighing or like machine to apparatus where further operations, for example packeting, take place. The material falls from the weighing &c. machine through a hopper 11 at position P1 and is released into a filling nozzle 13 at position P2. A number of containers 7, 7a .. 7k are arranged on a continuously rotating friction rim 1, so that the movement of the container can be stopped without affecting the rotation of the rim. At the moment of filling, the container 7 is held against motion by a stop 9, and a number of containers 7a, 7b, 7c accumulate behind to form a reserve. As soon as the material has fallen into the container, the stop 9 is moved manually or automatically' by the action of the weighing machine into the position shown in broken lines, long enough to allow one container to pass. The reserve of containers then closes up and the foremost is in position for the next filling operation. The filled container travels in a clockwise direction, Fig. 1, and takes its place behind a reserve of filled containers 7f .. 7k which has accumulated at the station P2 at which the material is to be delivered into the hopper 13 forming part of a packeting mechanism. At the packeting station, the hinged base 14e of the container is released by the operation of a stop 16 on a catch 15e, and is subsequently closed again by a rail 18, a stop 20 turning the catch back into the closed position. The containers are released from the delivery position by a stop 17 similar to the stop 9. If the output of the weighing and filling mechanism is approximately the same, the reserves of empty and filled containers will ensure continuity of working. If, however, the output of one mechanism is less, the reserve of containers of the faster working mechanism tends to become exhausted, and means are provided to stop the mechanism if the reserve falls below a predetermined minimum number. Control members 21, 22 comprise feeler levers adapted to contact with stops 10, 10a, 10b, 10c on the containers. As long as there are, in the example shown, two stops 10, 10a in contact with the lever, it is held in the position shown in full lines, and points 26, 27 are maintained in contact to close a circuit B which maintains the working of the weighing apparatus. If, however, all the containers in the position P1 are used up, a spring 28 pulls the lever 21 into the position shown in broken lines, the circuit B is broken and a circuit A is closed to actuate a stop motion and prevent any further weighing until the reserve of containers is restored. A similar arrangement controls the delivery of 'the material. The positions of the controlling members are adjustable. The rim may be replaced by an endless band.
Patent GB-758789-A (GB)
Title: Improvements in or relating to apparatus for mounting, feeding in and dressing the grinding wheel of grinding machines using cup grinding wheels
IPC: B24B53/02
Filed: 1954-08-06
Abstract: 758,789. Feeding grinding wheels; trueing. GES DER L. VON ROLL'SCHEN EISENWERKE AKT.-GES. Aug. 6. 1954 [Aug. 10, 1953]. No. 22950/54. Class 60 A grinding wheel 14 is mounted on a spindle 17 journalled in a bush 15 which has a threaded portion 19 in engagement with a rotary member 21 to allow it to be fed axially. Relative rotation between the portion 19 and the member 21 may be effected either by means of a hand crank 24 acting on the member 21 through a worm drive 23 or by means of a motor 50 acting on a gear 54 through a worm drive 51. a shaft 52 and a gear 53. The latter also engages a gear 45 in threaded engagement with a bush 30 which is thus displaced simultaneously with and to the same extent as the bush 15, the bush 30 carrying a diamond dresser 34 which may be displaced by an indexable crank 37 to operate on either the top or the bottom of the wheel 14. A set screw 56 is also carried by the bush 30 to operate a dial gauge 57 the plunger of which is adjusted by the screw 56 to indicate the amount nf material to be removed from the workpiece 62. this amount being determined by a second dial 63 which is brought into engagement successively with the top of the workpiece 62 and a template 61 corresponding to the required final dimension. As the wheel 14 is fed into the workpiece 62 by the motor 50, a control pin 57a on the gauge 57 operates a timecontrolled switch to control the motor 50 and a switch 58 to light two lamps 59, 60 in succession, the first lamp indicating the time for a final trueing operation if this is necessary and the second lamp that the workpiece has reached the required size. The bushes 15 and 30 are mounted in a member 10 mounted on a vertically adjustable slide 4 for angular adjustment about a pivot 9 by means of a swing bolt 13. The slide 4 is mounted on a slide 2 which enables the wheel to be traversed over the workpiece 62.
Patent GB-746579-A (GB)
Title: Process for preserving rubber
IPC: C08L21/00
Filed: 1954-08-06
Abstract: Natural or synthetic rubber or a mixture thereof is preserved against ageing by the addition thereto of a condensation product of carbazole styrene or a styrene derivative.  The condensation product may be prepared by condensation of carbazole with styrene or one of its derivatives, e.g. a -methyl styrene or vinyl naphthalene in the presence of surface-active inorganic substances, such as bleaching earths.ALSO:Natural or synthetic rubber or a mixture thereof is preserved against ageing by the addition thereto of a condensation product of carbazole with styrene or a styrene derivative.  The condensation product may be prepared by condensation of carbazole with styrene or one of its derivatives, e.g. a -methyl styrene or vinyl naphthalene in the presence of surface-active inorganic substances, such as bleaching earths.  In one example 100 parts crude rubber, 40 parts active precipitated silicic acid, 1 part stearic acid, 3 parts ozokerite, 5 parts zinc oxide, 5 parts titanium dioxide, 1.3 parts hexamethylene tetramine, 1 part cyclohexyl mecapto benzothiozyl sulphonamide and 3.8 parts sulphur, are mixed with 1 part of the crystalline product obtained from 1 part carbazole and 2 parts a  methyl styrene, and vulcanized.  In a further example the ozokerite is replaced by paraffin oil and the cyclohexyl mercapto benzothiozyl sulphonamide by mercapto benzothiozyl disulphide, and the condensation product is that of carbazole and styrene.
Patent GB-1267630-A (GB)
Title: Automatic marketing system
Inventor: WEIR STANLEY MCWHORTER
IPC: G07G1/00
Filed: 1970-05-13
Abstract: 1,267,630. Weighing apparatus. F.M.C. CORP. May 13, 1970 [May 16, 1969], No.23055/70. leadings G1N and G1W. [Also in Division A4] A computor operated supermarket (Division A4) has racks, trays, refrigerator shelves &c. supported on strain gauges which produce signals corresponding to articles removed therefrom by a customer, the signals indicating that one or more standard weight articles has been removed or that a weight of non-standard weight article (e.g. meat costed by the 1b.) has been removed. The racks &c. may indicate an increase in weight, e.g. when deposit returnable articles are placed thereon and each rack is associated with a card reader whose signals are transmitted to the computor which prints an invoice showing the cost of articles removed in association with eachcustomer's card. In Fig.4, a shelf 60 is supported at its four corners by cantilevers 67 resting on domes 69, each cantilever having a strain gauge 70 whose outputs are fed via a bridge circuit to the computor. The domes 69 may be replaced by pin located rockable knife edges 77 and the shelves have side edges 61 which abut the base 58 to prevent overloading of the cantilevers and strain gauges. Fig. 10 shows refrigerator shelves 107 supported by cantilevers 110 and strain gauges 112. Embodiments are described showing bottle racks and cantilevered supports upon which articles for sale may be hung.
Patent GB-1009766-A (GB)
Title: A magnetohydrodynamic generator having helical gas flow
IPC: H02K44/14
Filed: 1963-06-10
Abstract: 1,009,766. Generators operating by electromagnetic interaction with fluids. WESTING- HOUSE ELECTRIC CORPORATION. June 10, 1963 [July 7, 1962], No. 23071/63. Heading H2A. A magnetohydrodynamic generator comprises an outer cylindrical electrode 2 and an inner solid electrode 4 together forming an annular duct 8 into which an ionized gas is introduced at 10 so that it flows in a helical path in the presence of an axial magnetic field produced by winding 6 to generate a voltage between the electrodes. The generator may be modified by including stationary nozzle blades within the duct for accelerating the gas stream.
Patent GB-634091-A (GB)
Title: Improvements in or relating to a vat for preservation of foodstuffs by heat
IPC: A23L3/10
Filed: 1946-08-02
Abstract: 634,091. Preserving food in jars &c. HOVGAARD, V., and HOVGAARD, H. Aug. 2, 1946, No. 23159. Convention date, Aug. 2, 1945. [Class 49] [Also in Group XVII] In preserving foodstuffs in jars or bottles by heating there is employed a container 3 for the jars or bottles, a tightly fitting lid 7 for the container, and one or more openings in the central area 4 of the bottom of the container, which central area is considerably smaller than the base of the container so that the container may be placed on top of an ordinary cooking utensil 2, such as a saucepan, of smaller diameter than the container, steam from water heated in the utensil passing through the opening or openings into the container. A grid support 5 for the jars or bottles may be provided. Specification 24,188/95, [Class 66], is referred to. The Specification as open to inspection under Sect. 91 comprises also apparatus in which the water-holding utensil is integrally united with the container. This subject-matter does not appear in the Specification as accepted.
Patent GB-163622-A (GB)
Title: Improvements relating to piston rings and the like
IPC: F16J9/14
Filed: 1920-08-07
Abstract: 163,622. Stehle, F. K., and Keffer, C. A. Aug. 7, 1920. Piston packing.- A split packing-ring is formed with halved ends which overlap on a circumferential surface. In addition, the inner overlapping end is formed with a tongue 9 entering a recess 7, while the outer over-lapping end is formed with a recess 3 receiving a tongue 8 on the other end of the ring. The ring is manufactured from a blank of such a shape that it will be cylindrical when split and compressed. Side recesses 2 and a middle recess 3 are then milled on the outer periphery of the ring, forming a tongue 8. Similarly side recesses 5 and a middle recess 7 are milled in the inner periphery of the ring, forming a tongue 9, and splitting the ring. The ends of the tongues 8, 9 are then cut away, forming flat overlapping surfaces 10, 11.
Patent GB-887139-A (GB)
Title: Improvements in or relating to apparatus for the manufacture of electric resistance welded tubing
IPC: B23K13/02
Filed: 1960-07-04
Abstract: 887,139. Welding by pressure. STEWARTS & LLOYDS Ltd. July 4, 1960 [July 17, 1959], No. 23286/60. Class 83 (4). An impeder assembly in or for apparatus for pregressively forming tubing by high-frequency electric resistance welding, comprises an elongated rod 20, a tube 30 of material of high magnetic permeability and not subject to high eddy currents or hysteresis losses telescoped on the rod, a sleeve 35 of dielectric material telescoped over the tube, means for directing coolant over at least a portion of the surface of the tube inside the sleeve and guide means 40, 45 secured to the rod to maintain the rod aligned within the tubing. The assembly is positioned within gapped tubing whose edges 11 are heated by current of the order of 450 kc. per second and pressure welded together at point 15 by rollers 37. A stainless steel pipe 16 is threaded into a socket 22 on one end of the rod 20, of bronze, connected at its other end to an inside bead trimmer (not shown). The tube 30 of bonded powdered iron with longitudinal grooves in its outer surface is telescoped over rod 20 and the sleeve 35 of fibreglass or silicone rubber is held on the rod by a ring 36. A guiding nylon sleeve 40 is secured to the pipe 16 and a guiding sleeve 45 with longitudinal grooves 47 is secured to the rod 20 at the end of the tube 30. In operation, water or oil is supplied to pipe 16 to flow through ports 25 in the socket 22 and between the tube and sleeve. In a modification the bronze socket is separate from but screwed to the bronze rod and the tube of bonded powdered iron is spaced radially from the sleeve of fibreglass or silicone rubber so that the coolant flows in an annular space between the tube and sleeve.
Patent GB-1207732-A (GB)
Title: Improved yarn interlacing jets
IPC: D02J1/08
Filed: 1968-05-16
Abstract: 1,207,732. Spinning. E. I. DU PONT DE NEMOURS & CO. 16 May, 1968 [18 May, 1967], No. 23322/68. Heading D1F. In yarn interlacing apparatus as described in Specification 824089 and comprising a body member 11, a yarn passageway 12, and directlyopposed fluid conduits 13A, 13D, the crosssection of the yarn passageway at its intersection with the fluid conduits is an ellipse or a 'rectangle with semi-circular ends, and the width W of the yarn passageway is 1.5 to 2.2 times the height H of the passageway. The crosssectional area of the passageway is 4 to 7 times the cross-sectional area of the conduits. The cross-sectional area of the passageway is 1.4 to 1.75 the diameter of the conduits. The yarninterlacing operation may be combined with another yarn-treatment operation such as drawing or spinning.
Patent GB-1436065-A (GB)
Title: Thyristor-firing apparatus using an acoustic surface wave device
IPC: H02M1/088
Filed: 1974-05-28
Abstract: 1436065 Thyristor control circuits; surface wave devices TOKYO SHIBAURA ELECTRIC CO Ltd 28 May 1974 [1 June 1973] 23492/74 Headings H3T and H3U [Also in Division H2] A thyristor 30 is fired by transmitting a firing electric signal to the gate of the thyristor through a surface acoustic wave device 16 which has input and output transducers 18 and 19 arranged on the same surface of a layer of piezo-electric material 16. Thyristors 30-1- 30-n, Fig. 3, can be simultaneously fired by a control pulse from a pulse generator 11 which modulates the amplitude of a carrier signal from a generator 10 in an amplutide modulator 12, such as a ring modulator. The modulated signal is amplified at 15 and fed via piezoelectric surface acoustic wave devices 16-1-16-n to rectifiers 20-1-20-n which provide demodulated control signals to fire the thyristors 30-1- 30-n. The demodulated control signals have the same rising characteristic as the control pulse from the generator 11. The series connected thyristor shown in Fig. 3 may be used in two branches of a known D.C.-A.C. inverter circuit (Fig. 2, not shown). The rectifiers 20 may be half wave or a full wave diode rectifier (Fig. 1, not shown). The surface acoustic wave devices 16 function as BPF's, have a substrate (17) of piezoelectric material such as lithium niobate and input and output transducers 18, 19 consisting of pairs of interdigitated electrodes formed of a conductive layer such as gold. Instead of the separate surface acoustic wave devices 16-1-16-n used in Fig. 3 a single device may be used (Fig. 4, not shown) having a circular piezoelectric substrate (40) with a single central input transducer (41) and peripheral output transducers (42). In a further modified surface acoustic wave device (Fig. 5, not shown) output transducers (52) are disposed on one or both sides of an input transducer (51) disposed on a rectangular substrate (50).
Patent GB-1147212-A (GB)
Title: Capacitors
Inventor: MCLEAN DAVID ALEXANDER
IPC: H01G9/15
Filed: 1966-05-26
Abstract: 1,147,212. Electrolytic capacitors. WESTERN ELECTRIC CO. Inc. 26 May, 1966 [22 June, 1965], No. 23533/66. Heading H1M. An electrolytic capacitor is manufactured by depositing, e.g. by cathodic sputtering or vacuum evaporation, an aluminium or copper layer 12 on a glass or ceramic substrate 11, depositing a non-anodic dielectric layer 13, consisting of silicon oxide, magnesium fluoride, aluminium fluoride or zinc sulphide, by pyrolysis, vacuum evaporation or reactive sputtering on the layer 12, depositing a manganese dioxide layer 14 on the layer 13 by pyrolysis of manganese nitrate, and finally depositing metal counter electrode 15.
Patent GB-660186-A (GB)
Title: Improvements in means for positioning articles on conveyors
IPC: B65G47/68
Filed: 1949-09-13
Abstract: 660,186. Endless-belt conveyers. NYEBOE & NISSEN AKTIESELSKABET, and ELLITSGAARD, C. M. Sept. 13, 1949. No. 23557/49. Class 78 (i). In means for positioning articles, e.g. bottles or tins, upon a conveyer belt of the kind in which the articles pass between two converging guides, one or each of the guides comprises a mechanism for imparting a movement, preferably a retrograde one, to any adjacent article which might obstruct the passage. Bottles passing down a shoot 2 on to conveyer belts 3, 4 are directed by guides 5, 6 into a narrowing path 9 between an adjustable guard 10 and an endless chain 16 driven in the direction of the arrows. Each chain link comprises a web plate 21 which is guided in grooves 22, 23 in a channel-shaped member 24 bolted to the framework. Teeth 26 provided on some of the links are normally shrouded by plates 27, 28 having lugs 29, 30 which are attached to bell-crank levers 33 34. These levers are coupled by a link 35 which is itself connected by a spring 36 to a plate 37 carried by the bell-crank 34. When bottles accumulate in the path 9, pressure is exerted on the edges of the plates 27, 28 and they are forced backwards against the resistance of the spring 36 to uncover the teeth 26. The engagement of the teeth with the bottles forces them backwards and removes the obstruction. The guard 10 is pivoted at 11 and is acted on by a spring 15.
Patent GB-252953-A (GB)
Title: Improved method of producing concentrated phosphoric acid
IPC: C01B25/20
Filed: 1925-09-22
Abstract: 252,953. Liljenroth, F. G. Sept. 22. 1925. Hydrogen remains when the phosphoric acid and water are fractionally condensed from the products obtained by the interaction of phosphorus and steam at high temperature with or without the use of a catalyst. The phosphoric acid is condensed at about 100‹ C. or above, preferably by passing the gaseous products through a tower possibly filled with packing and into which water is injected. As the uncondensed gases contain a small amount of phosphorus unoxidized by passage through the catalytic bed which may consist of iron, nickel, cobalt, ruthenium, rhodium, palladium, osmium, iridium, platinum, manganese, chromium, molybdenum, tungsten, uranium, copper, silver or gold, or oxides thereof, the steam is preferably condensed in two stages so that the phosphorus is obtained in the liquid condition, that is at a temperature above 40‹ C. when it may be readilv collected. The final condensation is effected at a low a temperature as possible in order to dry the hydrogen remaining and may also be performed by injecting water.
Patent GB-614873-A (GB)
Title: Improvements in and relating to bed-settees and like convertible furniture
IPC: A47C17/20
Filed: 1946-08-09
Abstract: 614,873. Bed-settees. GREAVES & THOMAS, Ltd., and DUNCAN, F. Aug. 9, 1946, No. 23638. [Class 52 (ii)] In bed settees of the kind comprising a sectionally hinged wire or spring mattress unit foldable beneath the seat in the settee position and extendible into horizontal position on the bed position foldable legs are pivotally mounted on the mattress unit and are located inwardly of the sides of the seat into a recess or recesses of which the legs are arranged to fold. The mattress unit comprises sections 1 ... 4 the section 1 being pivoted on a bracket 5 on the frame 6. The seat 7 is connected to the settee frame by levers and links pivoted to the brackets 8 the levers 10, 11 being crossed and pivotally connected together. One end of the lever 10 is pivoted to the bracket 8 while one end of lever 11 is linked by link 14 to the bracket 8. The other ends of the levers 10, 11 are pivotally connected to brackets 13 on the seat frame by link 12 in the case of levers 10 and directly in the case of levers 11. The legs 16, connected together by a bracing rod 18, are pivoted to brackets 17 and are connected by bent links 19 to brackets 20 secured in the recess of the seat framing 7a the brackets 20 being laterally offset and also forming an anchorage for the link 21 connecting the seat 7 with the mattress section 4. In folding the legs 16 enter the recess of the seat framing 7a. The back and head board 22 is carried by parallel links 24, 25 and linked to the mattress section 1 by link 26 so that it is moved out of the way when the bed settee is extended to form a bed but is moved .into position when the bed settee is folded to form a settee.
Patent GB-1349051-A (GB)
Title: Internal combustion engine with an exhaust gas storage device in the exhaust system
IPC: F01N3/18
Filed: 1972-05-19
Abstract: 1349051 Purifying I C engine exhaust gases FORD MOTOR CO Ltd 19 May 1972 [19 July 1971] 23651/72 Heading F1B Exhaust gases from a catalytic converter 18 are diverted by a valve 24 to a compressor 28 and to a storage device 34 below a predetermined temperature of the converter or the catalyst within it. Above the predetermined temperature the valve 24 permits the exhaust gases to flow to the atmosphere and a valve 46 is opened to permit the exhaust gases in the device 34 to flow to the converter inlet 16. A minor portion of the gases from the inflatable bag 40 may flow through a restriction 54 to the engine intake manifold. The compressor 28 and actuating solenoids of the valves 24, 46 are connected to a battery (60), Fig. 2, (not shown), through three switches in series, an engine ignition switch (64), Fig. 2, (not shown), which is closed when the ignition is switched on, a switch 20 responsive to the pressure at the converter inlet 16 and closed above a predetermined pressure and a temperature responsive switch 66.