baber/WOPTO huggingface dataset:
Patent GB-1228083-A (GB)
IPC: H01L21/311
Filed: 1969-06-03
Abstract: 1,228,083. Etching. RCA CORPORATION. 3 June, 1969 [10 June, 1968], No. 28050/69. Heading B6J. [Also in Division H1] A semi-conductor device is produced by providing a substrate having a plurality of regions of semi-conductor material forming a number of semi-conductor elements, each element having at least one contact region adjacent a surface of the substrate, depositing a metallic layer on the said surface of the substrate to provide a number of terminal areas electrically coupled to corresponding semi-conductor element contact regions, depositing an insulating layer on the metallic layer and etching away portions of the insulating layer overlying the terminal areas with an etching solution which is substantially electrically non-conductive and comprises hydrofluoric acid, a buffering agent (e.g. ammonium fluoride) and an organic substance selected from alcohols and carboxylic acids. Examples of suitable organic substances are glacial acetic acid, glycol or glycerol. The insulating layer may comprise silicon dioxide and the metallic layer may comprise aluminium, nickel, copper, gold, iron, tantalum, silver, titanium or combinations of these. In a preferred embodiment, Figs. 5-9, an aluminium film 7 is evaporated on to the surface of a semi-conductor wafer comprising an N+ silicon substrate 3, an N-type silicon epitaxial layer 2 and a silicon dioxide layer 4. A further SiO 2  layer 8 is pyrolytically deposited and then covered with a layer 9 of photoresist. To remove the metal area 7 which overlies the SiO 2  layer portion 10, the layer 9 is exposed through a suitable mask and developed and subsequently the hole 11 is formed in the SiO 2  layer 8 by means of the aforementioned non-conductive buffered hydrofluoric acid etching solution. The exposed metal is then etched with a mixture of nitric and phosphoric acids. Photoresist 9 may be removed prior to the metal etching step. The portions of layer 7 in contact with the P and N+ regions are then alloyed to the semi-conductor surface by heating the wafer at 530-550‹ C. and thereafter a fresh SiO 2  film 12 is pyrolytically deposited. A fresh photoresist 13 is used to define apertures 14 and 15 in the SiO 2  layers 8 and 12 which layers are etched according to the invention with the non- conductive buffered hydrofluoric acid solution. Terminal leads may then be ultrasonically bonded to the aluminium pods exposed by apertures 14 and 15.
Patent GB-1233492-A (GB)
IPC: H01C1/14
Filed: 1969-09-09
Abstract: 1,233,492. Resistors. SIEMENS A.G. 9 Sept., 1969 [10 Sept., 1968], No. 44521/69. Heading H1S. [Also in Division H2] The connecting element 4 inserted into a metallized blind bore 7 of an insulating body 1 of a resistor, has a V-shaped cross-section end 5. The resistor has a resistance layer 2, e.g. of carbon on the ceramic insulating body 1, with part of this layer together with the end face and blind bore 7 being metallized with a layer 3. The V-shape of the connector increases the resistance to withdrawal before being soldered.
Patent GB-1238464-A (GB)
IPC: B65G17/18
Filed: 1967-11-14
Abstract: 1,238,464. Endless tray-carrying conveyers. MARSHALLS TEA MACHINERY CO. Ltd. 13 Nov., 1968 [14 Nov., 1967], No. 51671/67. Heading B8A. A conveyer comprises a plurality of trays turnably supported between two spaced-apart drive means, and each comprising a substantially rectangular perforated sheet and two support blocks secured along two opposite parallel edges of the sheet. One edge of the sheet extends between the blocks forming a projecting lip, the drive means moving the trays along a path which includes an upper flight and a lower flight, where the individual sheets of the separate trays co-operate to provide a continuous supporting surface by virtue of the projecting lip on one tray overlapping the next tray. In the two end portions connecting the flights, the continuous supporting surface is broken up and then remade, each tray turning through such an angle that its supporting surface is upwardly facing in both flights. As shown, the trays are maintained in engagement by a guide 12. As each tray comes to the downstream end of this, it drops into a vertical position under gravity, and a guide 14 draws it back into its original orientation as it passes on to the lower run of the conveyer. The effective angle of rotation is thus 0 degrees at this end of the conveyer. Due to the manner in which the tray is transported round from the lower to the upper run at the other end of the conveyer, after it has initially dropped into a vertical position, and to the action of a guide 15, its effective angle of rotation is thus 360 degrees. Two other modified constructions of trays (Figs. 4 and 6, not shown) are also described.
Patent GB-1238524-A (GB)
IPC: F16K15/12
Filed: 1968-07-03
Abstract: 1,238,524. Valves. VSESOJUZNY NAUCHNO ISSLEDOVATELSKY INSTITUT KHOLODILNOI PROMYSHLENNOSTI. 3 July, 1968, No. 31766/68. Heading F2V. An automatic spring strip valve for compressors has slots in a seat 1 covered by strips 2 which are retained longitudinally and laterally by guide combs 3 and which co-operate during valve actuation with a lift limiting device 4. The surface of the device 4 at least at its end portions, complies with any line lying within a zone between the curved line of a natural deflection and two straight lines drawn from the apex of this line to the opposite edges of the surface, the two lines being included in the zone. The natural deflection curve is given by the equation of the line of deflection of a beam supported at its ends and exposed to a uniformly distributed load.
Patent GB-1239627-A (GB)
IPC: F16F9/088
Filed: 1968-07-11
Abstract: 1,239,627. Hydropneumatic shock absorbers. P. MONTANARI. 11 July, 1968 [11 July, 1967], No. 33217/68. Heading F2S. In a piston-cylinder shock absorber of the kind in which the piston 14 has apertures (not shown) associated with leaf spring valve members 10 and 13 which respectively control flow of hydraulic fluid in opposite directions, the piston has a rod 8 and the cylinder has, at the end opposite the rod, a sealed bellows 15. The bellows contains gas. Each leaf spring valve member consists of stack of plates of the form shown in Fig. 2B, the arcuate portions 28, 28<SP>1</SP> of such plate being the effective leaf springs. In each stack, the plate nearest the piston has relatively long and thin leaf portions which overly the piston apertures; successive plates in the stack (Figs. 2C to 2E, not shown) have shorter and thicker leaf portions. The bellows, besides acting as a spring, also contributes to the damping effect. It is also stated that temperature rise in use is minimized by the use of a bellows as the gas chamber, and the fact that the piston's periphery has a greater axial length than the main body of the piston has a like effect. The bellows preferably contains nitrogen, and a valve-less filling technique is disclosed.
Patent GB-1251324-A (GB)
IPC: E02F3/76
Filed: 1967-10-24
Abstract: 1,251,324. Scraper bowls; drum cutters. DEFENCE, SECRETARY OF STATE FOR. 23 Jan., 1969 [24 Oct., 1967], No. 48219/67. Heading E1F. An earth moving vehicle comprises a scraper bowl 1 having a scraper blade at its leading edge, a driven spiked drum 2 for breaking up the earth ahead of the bowl, and flights 8 mounted on driven chains 7 for moving earth towards the rear of the bowl. The drum and the chains may be driven from the drive unit of the vehicle or independently; the drive may be by a hydraulic motor. The drum 2 is driven by the chains 7 but may be separate therefrom, Fig. 4 (not shown). Hydraulic rams may be used to adjust the drum 2 and the flights 8 relative to the bowl.
Patent GB-1251682-A (GB)
IPC: G05D1/02
Filed: 1968-11-18
Abstract: 1,251,682. Position control system. HONEYWELL Inc. Nov.18, 1968 [Dec. 1, 1967], No. 54703/68. Heading G1N. A vessel heading control system comprises independent forward 36, 38, 40 and reverse 44, 46, 48 propulsion systems, the direction of thrust from each of which is variable through 180 degrees. Error signals from a ship heading and position reference generator 10 are resolved into longitudinal, or x, transverse, or y, and yaw, or #, components and summed at respective blocks 12, 14, 16, producing signals Tx, Ty, M#. Considering the forward thrust system, the forward component Txf of Tx is selected at 18 and fed to a block 26 where it is squared and added to the square of the transverse thrust component Tyf, which is formed at 22 from the sum of Ty and M#, the square root is then extracted so that the output of 26 is the modulus of the forward thrust vector and controlling through a block 34 the speed of forward thrust engine 36. The argument of the forward thrust vector is formed at 28 and controls through summing means 37 a block 38 which determines the angular position of propellor 40. Line arising angular velocity feedback is applied to 34 and angular position feedback to 37. The control network is similar for the reverse thrust system. Fig. 2 shows the azimuth angle converter 28, comprising a divider 55 forming the cosine of the azimuth angle, a cosine-to-angle function generator 57, a switch 65 operating in accordance with the polarity of Tyf operates a changeover switch 67, 69 to select either #, at terminal 59, or - #, at the output of inverting amplifier 61, in accordance with the sign of Tyf.
Patent GB-1252585-A (GB)
IPC: A01K1/02
Filed: 1968-10-17
Abstract: 1,252,585. Animal feeding. ASHTON CONTAINERS Ltd. 2 Oct., 1969 [17 Oct., 1968], No. 49179/68. Heading A1M. [Also in Division B8]  A container for an animal is provided with a feed box at one end and is constructed of corrugated fibreboard and may have a coating of wax externally. The container has ventilation holes and handholes and the feed box, which is fitted with a teat, slides into a recess 24. An aperture 15 accommodates the teat and a second aperture alongside acts as an observation hole. An empty feed box can be replaced by a full one and may have an inner bag. The bag could be used without the box and the feed receptacle could be refilled without being removed from the container.
Patent GB-1252934-A (GB)
IPC: C04B14/04
Filed: 1968-11-04
Abstract: 1,252,934. Treating argillaceous materials. FULLER CO. 4 Nov., 1968 [4 Dec., 1967], No. 52066/68. Heading C1A. Lightweight aggregate particles are made by sizing argillaceous rock to obtain a particle size of up to 9À5 mm., conveying the particles to a reaction chamber; maintaining them in the chamber as a fluidized bed; subjecting the fluidized mass to a supply of fuel and oxygen; maintaining the mass at a temperature (e.g. 1900-2200‹ F.) and for a time sufficient to cause a pyroplastic condition of the fluidized particles and then cooling the particles. The sized raw material, which preferably has a normal 4 Gaussian particle size distribution, may be pretreated at a lower temperature range (e.g. 900-1400‹ F.) for a time sufficient to reduce the tendency of the material to decrepitate due to thermal shock. The pretreatment step may include pelleting particles of up to 2À0  mm. in size and adding up to 2% by wt. of an oil bloating agent. Apparatus for making the particles comprises screen sizing means; a pretreater and a fluidized bed reactor with means for conveying particles therebetween; a gas separator for conveying hot gases from the fluidized bed reactor to the pretreater, and additional means for supplying hot gases to the pretreater. The pretreater may be a rotary kiln or a fluidized bed reactor. In one embodiment (Fig. 1) raw material from screen sizing means (not shown) is fed at 4 into a rotary kiln 1 provided with burner housing 6 which is supplied with heat from burner 8 and also from hot gases (from stage 2) in conduit 7. The heated argillaceous particles are fed by gravity into reactor 20 and are maintained there as a fluidized bed over grid 22. Fuel admitted at 26, and air fed in from the foot of the reactor, after being heated by exchanger 28 maintain the fluidized particles at 1900-2200‹ F. Additional air and fuel are supplied to start-up burner 25. Hot gases in conduit 31 are separated from dust at 30 and returned to stage 1 via conduit 7. Separated dust forms the processed material continuously discharged at 29 to cooler 40, which operates by maintaining a fluidized bed of the material being cooled.
Patent GB-1256584-A (GB)
IPC: F01M11/06
Filed: 1969-03-11
Abstract: 1,256,584. Liquid level control. A. GAOSO. March 11, 1969 [March 15, 1968], No. 12668/69. Heading G1H. In a device for maintaining the level of a lubricating oil 2 in a tank 1 constant, a supply reservoir 3, arranged at a higher level than the level of the oil 2 in the tank 1 and sealed in a gas tight manner by a plug 11, is connected to the tank 1 by a conduit 5 connected to the bottom of the reservoir 3 by a tube 4 and terminating by a tube 6 in the tank 1 at the required oil level. (For Figure see next page)
Patent GB-1258549-A (GB)
IPC: F02B77/04
Filed: 1970-08-10
Abstract: 1,258,549. Fuels. E. I. DU PONT DE NEMOURS & CO. 10 Aug., 1970 [13 Aug., 1969], No. 38445/70. Heading C5G. Fuels, e.g. gasolines contain (i) a fuel-soluble amine salt of a C 4 -C 11  aliphatic monoamine and a branched chain primary C 8 -C 16  alkyl acid ester of orthophosphoric acid and (ii) 1-50 parts by weight per part by weight of (i) of a liquid, hydrocarbon-soluble polybutene having a number average weight of 400-3000 and a viscosity of 500-900,000 S.U.S. at 100‹ F. and 60-20,000 S.U.S. at 210‹ F. Many examples of amine salts are given, e.g. the 2-ethylhexyl amine salt of mixed mono- and di-tridecyl acid phosphate. Organolead compounds may also be present.
Patent GB-1258668-A (GB)
IPC: B02C2/04
Filed: 1969-02-18
Abstract: 1,258,668. Gyratory crushers. BARBERGREENE CO. 18 Feb., 1969 [11 April, 1968], No. 8700/69. Heading B2A. Material is fed to the crushing gap of a gyratory crusher by a feeder, which comprises an open-topped container 108 provided with ports 120 and secured to the top of the crushing head. A hopper 124 with a spout 126 is secured to a shield 38 by struts 128 and is adjustable manually or automatically by jacks or rams relative to the container 108. When the crusher is operating the container is gyrated and rotated so that some material overflows the lip 118 and some is propelled through the ports into generally epicyclic paths.
Patent GB-1258842-A (GB)
IPC: F02B29/04
Filed: 1969-12-08
Abstract: 1,258,842. Closed circuit cooling systems. BABCOCK-ATLANTIQUE. 8 Dec., 1969 [27 Dec., 1968], No. 59856/69. Heading F4U. [Also in Division F1] Compressed combustion air fed to an engine 1 is cooled by water circulated through a cooler 6. The water for the cooler 6 is cooled by an induced draught air cooler 17 which also supplies cooling water to the condenser 15 of an exhaust gas heated boiler 14, supplying vapour to the turbine 12 driving the compressor 9 of a refrigerator 8,10,11.
Patent GB-1264722-A (GB)
IPC: H04M17/02
Filed: 1970-07-17
Abstract: 1,264,722. Automatic exchange systems. SIEMENS-A.G. 17 July, 1970 [18 July, 1969], No. 34721/70. Heading H4K. In a coin-operated system, payment for each call must be made with a coin of predetermined minimum denomination otherwise the connection is broken down. This procedure is said to be adopted to save the subscriber from being inadvertently cut-off due to his inability to feed the coin box at a fast enough rate on long distance calls. The analysis of the dialled digits to assess the charging rate may be effected in the subscriber's instrument or at the exchange. In the latter case the minimum value coin to be used is signalled back by a special signal, or is determined at the subset by the interval between the first two metering pulses or is determined directly by the value assigned to the supplied metering pulses. The coin value may be set-up on a lamp indicator.
Patent GB-1265259-A (GB)
IPC: C07C313/00
Filed: 1970-09-16
Abstract: 1,265,259. d-Limonene dimercaptan. PENNWALT CORP. 16 Sept., 1970 [24 Sept., 1969], No. 44279/70. Heading C2C. d-Limonene dimercaptan is obtained by exposing a continuously flowing stream containing H 2 S and d-limonene in a molar ratio of from about 10 : 1 to about 25 : 1 to U.V. light at a temperature from about 0‹ to about 25‹ C. and at a pressure from about 175 to about 250 p.s.i.g. An example of this process is given.
Patent GB-1266362-A (GB)
IPC: B23Q17/09
Filed: 1969-07-17
Abstract: 1,266,362. Piezo force transducers. KISTLER INSTRUMENTE A.G. July 17, 1969 [July 30, 1968], No. 36065/69. Heading GIN. A Piezo transducer to measure force or shear, or torque comprises three basic units which differ from each other only by the direction of sensitivity of the crystal plates within identical bodies. In Figs. 1 and 2 (not shown) Piezo discs (7) are disposed between washer-like force transmitting members (1, 2) welded to thin tubular inner and outer jackets (3, 4). The discs are insulated from the body on one side by an aluminium oxide washer (11), and remainder of the housing may be filled with epoxy resin. Two or more units may be stacked in mechanical series to provide a multi-force-component transducer Figs. 8 to 10 (not shown). A modified body construction for a torque transducer is illustrated in Figs. 11 and 12 (not shown), with a resiliently mounted-pressureplate.
Patent GB-1288973-A (GB)
IPC: B41F17/00
Filed: 1969-09-24
Abstract: 1288973 Marking moving objects UNITED STATES STEEL CORP 24 Sept 1969 [9 Oct 1968] 47090/69 Heading B6C An apparatus for marking hot coils C moving along a path 2 comprises an ink object-marking device 16 mounted on a first-link 6 of a parallelogram linkage which includes spaced parallel second 8 and third links 8<SP>1</SP> each pivotally connected at one end to the first link, and each mounted at their other ends on pivots 14, 14<SP>1</SP> spaced along a line parallel to the first link. A fluid motor 8 is provided for moving the linkage to vary the position of the first link 6, and a fourth link 26 sensing in use to contact coils approaching the apparatus along the path, is mounted at one end of a pivot situated on said line but spaced from the first-mentioned pivots. The fourth link 26 is connected to the third link by a fifth link 38 and a lost-motion connection 40, 36 and a control valve 42 is provided for the operating means the value being responsive to relative movement in the lost motion connection, and thus to relative movement between the fourth and third links, to cause the operating means to move the linkage to bring the marking device into an appropriate position for marking an object passing the fifth link.
Patent GB-1289935-A (GB)
IPC: F16K41/10
Filed: 1971-04-20
Abstract: 1289935 Valves COMMISSARIAT A L'ENERGIE ATOMIQUE 20 April 1971 [20 April 1970] 10232/71 Heading F2V A valve for use with corrosive liquids comprises a body 1, a conical closure 4 formed with a groove 5 on its lower surface and mounted on a hollow rod 25 having orifices 8 for passage of the liquid, a liquid collector 7 connected to the rod beneath the orifices, and a metal bellows 10 surrounding the rod with its ends connected to a collar 25 and a cap 11, A knob 16 in screwed engagement with the cap displaces the rod which is held against rotation by a key 15. Any liquid which leaks into the body may be drained through a tube 19 and cock 20. The closure may be of copper, light alloy or a fluoro polymer while the other parts of the valve in contact with the liquid are of cupro-nickel. The collector 7 and bellows 10 are welded to the rod 25.
Patent GB-1290021-A (GB)
IPC: G01S17/87
Filed: 1969-11-27
Abstract: 1290021 Lens mounts AGA AB 27 Nov 1969 [19 Dec 1968] 58018/69 Heading G2J [Also in Division H4] A rangefinder included a first optical system forming, in a predetermined direction, a beam of light from a transmitter; a second optical system receiving light from said predetermined direction and directing it onto a receiver and a viewing optical system having means for varying its focal length mechanically coupled to means for varying the focal length of the first or second optical system. Concave lens A1 slidably mounted in guide S1 forms in conjunction with convex lens B1 a beam having a divergence α which depends on the position of A1. Light reflected from a reflector is received by an identical system and focussed on to a photomultiplier receiver R. The time for the light to travel to and from the reflector is measured by meter M to determine the range. A viewfinder VS has an objective lens A3 slidable in a guide 53. The means for adjusting the lens A3 is coupled to the movable lenses A1, A2. Thus when the viewfinder is focused on the reflector, the divergence of the transmitted beam is such that the beam illuminates an area of the object which is constant irrespective of the range and therefore a constant area of the photomultiplier cathode is illuminated.
Patent GB-1295056-A (GB)
IPC: B28B1/26
Filed: 1970-03-17
Abstract: 1295056 Slip casting DOULTON & CO Ltd 19 April 1971 [17 March 1970] 12885/70 Heading B5A An installation for the pressure casting of slip in porous moulds includes a station 6 at which the moulds are mounted one after the other on a transporter unit 1, a station 7 where the moulds are removed in turn from the unit and pressurizing means for maintaining superatmospheric pressure on the slip in each mould whilst the mould is conveyed from station 6 to station 7. The pressure may be in the range 50-200 p.s.i. and the transporter unit may be intermittently rotated and associated with an auxiliary conveyer system 2 which feeds the moulds in a closed circuit to and from the unit. During mould conveyance from the unit by the auxiliary conveyer surplus slip is drained off and the cast products removed. Slip may be supplied to the moulds at or before reaching station 6.
Patent GB-1295282-A (GB)
IPC: B24B49/00
Filed: 1969-02-11
Abstract: 1295282 Grinding CHURCHILL MACHINE TOOL CO Ltd 3 Feb 1970 [11 Feb 1969] 7276/69 Heading B3D A grinding machine for matching the diameters, e.g. of a pair of rolls 3, comprises means (2), Fig. 1 (not shown), for supporting each roll 3 in turn for rotation about the same axis, means for effecting relative infeed and traverse of a grinding wheel (4), and means for measuring the position of the roll surface relative to a datum position. A gauge probe 9 having a movement indicator 10 is mounted in a support 8 borne by a top in-feed slide 7 slidable on a bottom in-feed slide 5, the whole being supported on a carriage 6. With a roll 3 in position and the top slide 7 abutting a bottom slide stop 17, the support 8 is advanced towards the roll 3 by manually- or motor-operated screw means 11 acting on the bottom slide 5, until the indicator 10, which has a zero reading when the probe 9 is fully extended, gives a reading equivalent to the required roll reduction; grinding until the indicator reading falls to zero, then achieves the required roll radius. Substitution of the second roll 3, without altering the position of the bottom slide 5 on the carriage 6, followed by grinding to a zero indicator reading produces a second roll of diameter equal to the first. A print out 14 and digital read out 15 connected to the feed screw 11 indicate roll diameter measurements.
Patent GB-1319245-A (GB)
Title: Dual brake valves
IPC: B60T13/14
Filed: 1970-04-08
Abstract: 1319245 Fluid pressure braking systems CLAYTON DEWANDRE CO Ltd 19 April 1971 [8 April 1970] 16712/70 Heading F2F A dual brake valve and safety valve unit for power hydraulic braking systems comprises two valve assemblies disposed in a common housing 1 for actuation through a balancing beam 19 and a safety valve associated with each of the said assemblies accommodated in the same housing, the pressure fluid inlet 23 to each assembly being branched and led to the associated safety valve which when open discharges the pressure fluid to a reservoir or return line via a port 16. Each valve assembly has a ball 5 co-operating with a fixed seating 6 to control flow of fluid to a brake cylinder via a port 9 under the influence of a hollow plunger 7 which when displaced closes the return connection and moves the ball 5 off its seating to establish communication between the fluid supply and the port 9. Each safety valve has a ball member 30 seating on a valve seat 32 under the pressure of a spring.