baber/WOPTO huggingface dataset:
Patent GB-1097070-A (GB)
Title: Improvements in or relating to desalination apparatus
Inventor: LONGSTAFF RALPH MICHAEL
IPC: C02F1/14
Filed: 1965-12-22
Abstract: 1,097,070. Solar stills; desalination of water. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Dec. 12, 1966 [Dec. 22, 1965], No. 54272/65. Heading B1B. A solar still, for the desalination of water, comprises a transparent conical member 2 mounted above an opaque conical member 3, and conduits by means of which the saline water flows down the upper surface of the transparent member 2 and then flows down the upper surface of the opaque member 3, the arrangement being such that water evaporates from the upper surface of member 3, and the vapour condenses on the lower surface of member 2. Distilled water collects in funnel 11, and is withdrawn through pipe 12. The saline water is fed from circular perforated pipe 4 onto the upper surface of member 2, and flows down to pool 5. The saline water flowing out of pipe 6 is conducted through pipe 8 to circular perforated pipe 9, and then flows down the upper surface of member 3. Residual saline water leaves the still through drain 10. Members 2 and 3 may be made of clear and black plastic sheets, respectively. Also described is an apparatus comprising a row of superposed pairs of V-members arranged side by side.
Patent GB-1469848-A (GB)
Title: Pushbutton radio receiver including manual tuning shaft coupling and decoupling assembly
IPC: H03J5/12
Filed: 1974-12-18
Abstract: 1469848 Friction clutches MOTOROLA Inc 18 Dec 1974 [9 Jan 1974] 54724/74 Heading F2C [Also in Division H3] A push-button radio receiver has first and second clutch disc 88, 94 and 84, 86 rotatably mounted on opposite sides of a flexible drive disc 80 which is rotatably attached to a tuner drive shaft 72 coupled to tuning cores; the first and second clutch discs are normally urged into driving engagement with the drive disc for rotating the tuner drive shaft 72 in response to rotation of a manual tuning shaft 98 coupled to the first clutch disc 88, 94 and on depression of one of the push buttons 26 a declutch bar 110 is moved in the direction of arrow 130, Fig. 3, to disengage the clutch discs 94, 96 with respect to the flexible drive disc 80 so as to decouple the manual tuning shaft 98 while the button is depressed. When a push-button 26 is pressed on and 126 of the associated key slide 120 cooperates with cams 124 to move the declutch bar 110 and a clutch member 82 to the right. This releases the coupling between the flexible drive disc 80 and rubber rings 94, 96 bonded to a crown gear 88 and the clutch member 82 so as to disconnect the manual tuning drive shaft 98 from the tuner shaft 72. A spring 96 serves to bias the crown gear 88 and drive disc 80 apart. When the buttons 26 are released a spring 120 biases the declutch bar 110 to the left so that the clutch discs 86, 94 engage the drive disc 80 (Fig. 1, not shown) for manual tuning of the treadle bar 56 tuning arrangement by a knob 24.
Patent GB-1443984-A (GB)
Title: Liquid chemical treatment of running fabric webs
IPC: D06B9/00
Filed: 1973-11-28
Abstract: 1443984 Liq. treatment of fabric webs RIGGS & LOMBARD INC 28 Nov 1973 55106/73 Heading D1L In the treatment of a moving textile web with liquids e.g. scouring, wherein a liquid is applied across the width of the web and a vacuum across the centre portion of the web, the latter is prevented from curling at the edges by marginally gripping the web and moving it in a flat state through the treatment zones whilst applying jets of gas against the marginal edges of the web so as to remove excess liq. on the edges, before drying. The liquid may be applied alternately in the form of high pressure jets and sheets of liquid. The margins of the web may be gripped by pin chains. As shown in the Figure 1, the apparatus is generally indicated by the numeral 10, which comprises a housing defined by the walls 14, 16, 18, 20, 22 and 24, which contains an inlet slot 26, and an outlet slot 28 through which web 12 is fed. The web is first fed on to a pair of parallel pin chains 30 and 32 (later not shown on Figure 1) the pins engaging the marginal edges of the web. The pin chains form closed loops which are carried continuously through the housing by interior and exterior pulleys and roll 62 presses the marginal edges of the web onto the pins. The web then passes through slot 26 and scouring station 64 wherein the liquid is applied by a plurality of bars 66 and 68 which apply jets 70, of liquid across the width of the web and arcuate baffles 72 attached to the bars converts the spray discharge into a curtain 76 of liquid which removes oil and dirt from the web. The liquid passing through the web is collected and recirculated via troughs 80, 82 and 84 and pumps 86, 88 and 90. From station 64, the web is carried over suction box 94 which removes liquid from the centre portion of the web but not the edges from which the liquid is removed by high pressure air jets directed by nozzles 98 and 100. From the suction box and air jets the web is drawn under an optional spraying station 104 where treatment and finishing agents can be applied to the scoured web, past a second suction box 105, through drying chamber 102, out of the housing via slot 28, and the web separated from the pin chain and stored.
Patent GB-1493150-A (GB)
Title: Zero-bias schottky barrier detector diodes
IPC: H01L29/872
Filed: 1974-12-20
Abstract: 1493150 Schottky barrier diode MICROWAVE ASSOCIATES Inc 20 Dec 1974 [25 Jan 1974] 55242/74 Heading H1K A Schottky barrier diode for use without D.C. bias as a rectifier at microwave frequencies includes a contact 14, 21 of a metal silicide made by depositing the metal on a body 12 of silicon at between 100‹ and.200‹ C. and then heating the body 12 to a higher temperature but one which is below the eutectic for the silicide, resulting in a diode having a barrier height of 0À15-0À2 V. In the embodiment shown, the silicide may be that of Pa, Pt or Hf formed in a P or N type epitaxial layer 12 on a Si substrate 11 of lower resistivity. The electrode further comprises a cover 15 of Nichrome (R.T.M.) or of Ti-Mo-Au and a Au button 17, all formed in a window 18 in a glass layer 13. The layer 12 is 0À5 Á-0À9 Á thick with a resistivity of 0À1-0À3 ohm-cm. In the case of forming the Schottky contact with Pa, for example, the silicide 21 is formed by heating the body after deposition of the Pa 14 to 325 Œ 25‹ C. for 2-15 mins. The metal cover 15 is then sputtered on. An ohmic contact 16 may be of Cr-Au deposited from the vapour or of electroplated Ni-Au.
Patent GB-1136941-A (GB)
Title: Improvements in or relating to implements for spreading powdered and granular materials
IPC: A01C17/00
Filed: 1965-12-30
Abstract: 1,136,941. Powder distributers. C. VAN DER LELY N.V. 30 Dec., 1965 [15 Jan., 1965], No. 55311/65. Heading AID. A powder distributer comprises a chamber 24 provided with an opening in its lower portion where material is fed to a distributer 31. The effective size of the opening is adjusted by means of a sleeve 37 which is axially adjusted by means of a lever 44. An agitator comprising a frame 54 is moved by means of a cam 58 on the shaft 29 on which the distributer 31 is mounted and which is driven by a tractor power shaft.
Patent GB-1489934-A (GB)
Title: Ring-twisting apparatus
IPC: D01H1/38
Filed: 1974-12-23
Abstract: 1489934 Ring spinning: threading-up and cutting yarn DU PONT OF CANADA Ltd 23 Dec 1974 [21 Dec 1973] 55603/74 Heading DID In a ring spinner at the start of winding yarn is sucked to waste via the lowered traveller, a guide is rotated to carry yarn running between the traveller and the waste sucker to engage snapping means at the spindle base, the ring is raised to snag the yarn and break the yarn running to waste, and the ring is traversed to wind yarn, and at the end of winding the ring is lowered and the guide is positioned to deflect yarn running from the traveller from contacting. a cutter mounted on the waste sucker until the ring is low enough such that, on cutting of the yarn by the cutter, the incoming yarn enters the waste sucker immediately. To start spinning, Fig. 1 yarn 31 is passed through traveller 18 into intake 24 of suction means 23. Pulley 12, below lowered ring 17, is rotated via cord 19 so that edge 15 of pulley guide 14 abuts yarn section 32 Fig. 2A. Pins 10 and its yarn snagger 11 are then rotated, and pulley 12 rotated with edge 15 until Fig. 3A, section 32 engage snagger 11. Ring 17 is raised to its regular traversing position and the yarn enters a crack 33 above snagger 11 and is snagged on a sand paper disc lying in the crack. The yarn then breaks between the pins and the suction means. When pins 10 are fully wound the ring is lowered and guide 14 is positioned so that the running yarn rises over guide edge 16 and thus avoids guide 25 on means 23. When the ring is low enough the yarn is pulled down guide edge 15 and is guided by guide 25 to cutter 26 on means 23.
Patent GB-1340757-A (GB)
Title: Production of small diameter spherical particles by melt extrusion
IPC: B01J2/04
Filed: 1971-12-02
Abstract: 1340757 Granulating metals MONSANTO CO 2 Dec 1971 [3 Dec 1970] 55983/71 Heading C7X An apparatus for producing small diameter spherical particles from low viscosity melts consists of a crucible 11 surrounded by an induction coil 13 and having a plate 14 with a circular orifice 17 for allowing a melt to pass through the plate 14, the plate 14 being spaced from a plate 22 and inert gas passing between the plates and through a throat 23 with the melt so that the stream of melt is attenuated and forms droplets which solidify. The melt is heated by the induction coil 13 and is extruded through the orifice 17 by gaseous pressure above the melt 20.
Patent GB-1293140-A (GB)
Title: Thin film resistors
Inventor: BANKS FRANK DAVID
IPC: C23C14/34
Filed: 1969-11-18
Abstract: 1293140 Resistors; capacitors WESTERN ELECTRIC CO Inc 18 Nov 1969 [19 Nov 1968 11 Dec 1968] 56377/69 Headings H1M and HIS] [Also in Division C7] A thin-film resistor has a substrate on which is deposited a film of a ceramic material and a metal or metallic compound, its resistance then being increased to a desired value by electrochemical anodization. The resistance film may be deposited by co-sputtering the metal, e.g. tantalum, and the ceramic metal, e.g. an oxide of silicon or aluminium, using the apparatus of Fig. 2, not shown (see Division C7). An alternative method, Figi 1, heats the substrate and its coating of the ceramic prior to the impregnation by the metal or metallic compound. Contact pads are deposited on the resistor once it has been patterned or cut into strips, which may be by a conventional photo-etching technique or by originally sputtering through a suitable refractory metal mask. Successive layers of chromium or michrome, copper, platinum or other noble metal are deposited by evaporation through openings in a mask, to form the contact pads. Conductive leads are attached by ultrasonic bonding. The resistor is then electrochemically anodized to increase its resistance, by transforming some of the tantalum into tantalum pentoxide, Fig. 4 (not shown) (see Division C7). The composition of the anodized mixture of Ta and Si oxide is suitable for use as a capacitor dielectric. The resistor is finally thermally aged to increase its stability. Aluminium oxide may replace the silicon oxide as the ceramic material and tantalum nitride used as the metallic compound.
Patent GB-1165927-A (GB)
Title: Method of and apparatus for Spinning Organic High Polymers
IPC: B29C48/10
Filed: 1966-12-19
Abstract: 1,165,927. Melt-spinning apparatus. GLANZSTOFF A.G. 19 Dec., 1966 [18 Dec., 1965], No. 56786/66. Heading B5B. Organic high polymers are melt spun in an apparatus comprising a heating container 1, 2, 3 heated by circulation of a liquid or gaseous medium, a spinning pump unit 7, 8 connected by a melt duct 10 of variable length (having a helical turn 11) to a separate nozzle assembly 24 to 30 including a nozzle plate 25 for forming filaments, the pump unit 7, 8 and the nozzle assembly 24 to 30 being located within the heating container 1, 2, 3, an aperture 4 below the nozzle assembly defined by radiating surfaces parallel to the intended direction of issue of the filaments, the radiating surfaces being located within the heating container, that face of the nozzle assembly adjacent the nozzle plate being mounted in the heating container and being formed with a surface held in contact with the inner side of the bottom wall of the heating container, the melt duct 10 being connected in fluid-tight manner by a releasable clamping device to an inlet aperture 36 of the nozzle assembly, the clamping device serving also to press the nozzle assembly against the inner side of the bottom wall of the heating container, the construction being such that the pump unit and the nozzle assembly are not heated by conduction from the melt in use but heated by circulation of a liquid or gaseous heating medium therearound. The variable length of the melt duct may be achieved by the use of more than one helical turn 11 or by replacing the duct by cylindrical tubes, one sliding within the other in a fluid-tight manner. The heating container may be subdivided into two heating sections by a partition above the nozzle assembly, and a separate supply of heating medium may circulate in each section.
Patent GB-1303410-A (GB)
IPC: H03K3/281
Filed: 1971-12-09
Abstract: 1303410 Transistor bi-stable circuits VARTA AG 9 Dec 1971 [10 Dec 1970] 57334/71 Heading H3T A bi-stable includes a complementary pair of transistors T1, T2 connected as shown to one another and to two resistors R1, R2. The latter may be equal. As the applied voltage U increases, T1 emitter base is increasingly reverse biased until it breaks down at a predetermined level; the resulting current through R2 turns on T2 which then draws current from T1 base, and T1 conducts inversely, with collector and base functions reversed. The reciprocal coupling produces saturation of both transistors.
Patent GB-1153630-A (GB)
Title: Process for the preparation of Alpha, Beta-Ethylenically Unsaturated Compounds
IPC: C08L33/20
Filed: 1966-12-23
Abstract: 1,153,630. α,#-Ethylenically unsaturated compounds. TOYO RAYON K.K. 23 Dec., 1966 [24 Dec., 1965; 25 Dec., 1965; 29 March, 1966], No. 57667/66. Heading C2C. Compounds of the formula wherein X is a -CN or -COOR radical and R is a C 1-12  hydrocarbyl radical may be obtained by reacting a compound CH 2 = CH-X with an aldehyde R.CHO in the presence of a catalytic amount of a tertiary phosphine. Compounds of Formula I in which X represents a cyano group are claimed per se. When the radical R contains an aromatic ring, the nucleus may be substituted by halogen, nitro lower (C 1-5 ) alkyl, lower (C 1-5 ) alkoxy or lower (C 1-5 ) alkoxy carbonyl groups. The tertiary phosphine catalyst, which is generally used in an amount of 0À0001-0À1 moles per mole of the acrylic starting material, preferably contains at least one aliphatic radical attached to the phosphorus atom. The reaction may be effected at - 20-250‹ C., preferably in the presence of an inert organic solvent and preferably under a non-oxidizing atmosphere or under reduced pressure. A tertiary amine, suitably having a pKa of at least 5 at 25‹ C., may be added to the reaction mixture and a polymerization inhibitor may be present.
Patent GB-1319355-A (GB)
Title: Direction indication switching circuit
IPC: F16K39/02
Filed: 1970-12-04
Abstract: 1319355 Pressure regulating and safety valve device WERNER & PFLEIDERER 4 Dec 1970 [21 March 1970] 57813/70 Heading F2V An hydraulic pressure regulating and safety valve device for supplying fluid to a working machine comprises an inlet 4 and an outlet 5; a hollow valve element 8 communicating with the atmosphere and having portions 9 and 13 cooperating with seats 6 and 13<SP>1</SP>, the seat 13<SP>1</SP> forming part of a piston 11 which is loaded by a pneumatic cushion in a chamber 16; and a throttling passage 25 for connecting a chamber 12 with the fluid flowing through the valve. Compressed air is fed into the chamber 16 through a passage 21 and valve 19, and hydraulic fluid for rapidly adjusting the pressure in the chamber is fed into the chamber through a pipe 20 and a valve 18. Hydraulic fluid is withdrawn through a pipe 24 if it is desired to reduce the pressure in the chamber. In use, the pressure in the chamber 16 is brought to the required value as measured by a gauge 20 and the piston 11 causes the portion 9 of the hollow valve element to leave its seat 6. When the pressure in the chamber 16 and outlet 5 are equal, the pressure in the chamber 12 adjusts itself through the passage 25 to this pressure, but with delay. A compression spring 10 is now able to force the hollow valve element slowly against its seat 6. If the pressure level in the supply pipe to the machine and hence at the outlet 5 should rise, the piston 11 will be lifted by the increased pressure in the chamber 12, and the excessive pressure will be vented to atmosphere through the hollow valve element 8.
Patent GB-582591-A (GB)
Abstract: 582,591. Ticket printing and issuing machines. SETRIGHT REGISTERS, Ltd., TOVEE, H. J., and YAXLEY, J. V. June 28, 1944, No. 12323. [Class 106 (iii)] In a ticket printing and issuing machine, the box containing the ticket-blank roll is constructed so as to facilitate. renewal of the roll in minimum time. The box comprises a rear plate 10 secured to the machine 12 and having a central peg 14 to receive the bobbin 18 for the roll, which is inserted by lifting (as shown) the hinged spring-loaded front plate 15. Rotation of the roll is frictionally retarded by the pressure thereon of the plate 15, the peg 14 being shorter than the width of the roll. Feed rollers 20, 21 for the paper strip can be separated by moving a spring-loaded lever 22 by means of a detent 24.
Patent GB-1469773-A (GB)
Title: Catalytic hydrocracking with a catalyst system comprising a metal halide and a compound serving as a proton source to the catalyst system
IPC: C07C4/06
Filed: 1973-12-22
Abstract: 1469773 Hydrocracking EXXON RESEARCH & ENG CO 22 Dec 1973 [22 Dec 1972] 58521/73 Heading C5E [Also in Division B1] Hydrocarbons that boil at 400 F. or above are cracked in the presence of hydrogen or of a hydrogen donor in contact with a catalyst comprising (a) a fluoride, chloride, bromide or iodide of Al, Ga, Sn, Pb, V, Nb, Ta, As, Cr, Mo, W, rare-earth metal or actinide, and (b) at least an equimolar amount of a proton source which is HF, H, Cl, H, Br, HI, R a X b QO c  (where R is hydrogen, alkyl up to butyl, cycloalkyl up to C 10  or aryl up to C 10 , Q is phosphorus or sulphur, O is oxygen, a is from 1 to 4, and b and c are each from 0 to 6), trifluoromethansulphonic acid, trifluoracetic acid or bis-(perfluoromethylsulphonyl) methane. The temperature of cracking may be 20 to 220 C. and the pressure 25 to 3000 p.s.i.g. If the feedstock contains sulphur compounds or aromatics, the catalyst is used in quantity to provide a molar excess of metal halide over the sulphur compounds and aromatics. Materials cracked in the examples are: (1) a typical hydrocracker feed boiling at 430-750 F.; (2 and 3) solutions of anthracene in normal pentane.
Patent GB-1446638-A (GB)
Title: Process for the production of fats and oils from vegetable or animal products adjustable seat assembly in a vehicle
IPC: B01D11/02
Filed: 1973-12-20
Abstract: 1446638 Extracting fats and oils STUDIENGESELLSCHAFT KOHLE mbH 20 Dec 1973 [22 Dec 1972] 59167/73 Heading B1Q [Also in Division C5] Fats and oils are obtained from vegetable or animal products by (a) extracting by contact with a volatile solvent at a temperature below its critical temperature, (b) separating the solution from the residue, and (c) precipitating the fat or oil from the solution by heating to above the critical temperature while keeping the pressure high enough to avoid the absorption of latent heat. As shown, the material to be extracted rests on filter plate 2 in extractor 1. Propane is introduced through valve 3 to a pressure of 42 atm. at a temperature of 80‹C; the separator 5 is heated to 130‹C. Pump 6 circulates the propane in the directions shown by the arrows through an indirect heat-exchanger 4. The extracted oil precipitates in the separator and is drawn off by valve 7. When extraction is complete, the propane is drawn off by valve 10, with valves 8 and 9 closed. Other solvents referred to are ethane, butane, isobutane, carbon dioxide and nitrous oxide. Materials that may be extracted are copra shreds, soya flakes, ground maize, oil seeds, bones, comminuted peanuts, sunflower seeds, olives, olive kernels, linseed and cottonseed.
Patent GB-1442760-A (GB)
Title: Lithographic support
IPC: B41N1/14
Filed: 1973-12-21
Abstract: 1442760 Photo-resist materials EASTMAN KODAK CO 21 Dec 1973 [22 Dec 1972] 59418/73 Heading G2C [Also in Division B2] A photo-resist comprises a lithographic support of anodized aluminium coated with a subbing layer containing a hydrophilic cellulosic compound and a water-soluble salt of Mg, Ca, Sr, Ba, Zn, Co or Mn and then a layer of light-sensitive material salts that may be used are bromates, bromides, chlorates, chlorides, dithionates, iodides, nitrates, sulphates, salicylates, benzoates, acetates, butyrates or fumarates, with the organic salts particularly the acetate being preferred. Cellulosic compounds mentioned are methyl cellulose, hydroxypropyl cellulose, and, preferably, carboxyalkylcellulose salts, the alkyl group being methyl ethyl or propyl. In examples (1) a carboxymethyl cellulose and zinc acetate subbing layer on an anodized A1 plate was overcoated with a layer containing benzoic acid and a radiation sensitive polymer made by condensing equimolar quantities of diethyl-pphenylene diacrylate and 1,4-di-#-hydroxyethoxycyclohexane. The plate was then developed with an acidic developer containing methyl abietate and hydrogenated wood resin, (3) the plate is coated with an azide sensitized cyclized rubber, developed and desensitized, (4) a light-sensitive polycarbonate prepared by condensation of bisphenol 'A', divanillal cyclopentanone, and phosgene, (5 & 6) the product of Example (4) was further coated with a fine grain light-sensitive silver halide emulsion (8) a photo-polymerizable composition containing a methylmethacrylate/ethyl acrylate/ methacrylic acid copolymer and 2-hydroxy-3 methacryloloxypropyl-4-methacryloyloxybenzoate was used.