baber/WOPTO huggingface dataset:
Patent GB-1575128-A (GB)
Title: Binding strap
IPC: B65D63/10
Filed: 1977-10-11
Abstract: This binding strap consists mainly of a strap-shaped plastic part (2) having a locking head (1) at one end. The strap-shaped part (2) has blocking teeth (3) and can be passed through an opening (5) in the locking head (1) in which it can be clamped tightly for the purpose of holding together and/or fixing electric leads, cables or pipes. For this purpose, the locking head (1) is fitted with a pawl (6, 9) which is pivotable and bears blocking teeth (8) which can engage in the blocking teeth (3) of the strap-shaped part (2). Such a construction improves the function of the locking head (1). <IMAGE>
Patent GB-1174774-A (GB)
Title: Improvements relating to Static Inverter Power Supplies
Inventor: KIRYLUK WLODZIMIERZ
IPC: H02M7/515
Filed: 1966-09-22
Abstract: 1,174,774. Inverting. INDUSTRIAL INSTRUMENTS Ltd., ELECTROMOTORS Ltd., and L. SCOTT. 22 Sept., 1967 [22 Sept., 1966], No. 42379/66. Heading H2F. In a supply capacitor commutated inverter circuit including a first main controlled rectifier SCR1 in series with a choke LA, the primary winding of a transformer T1 and rectifier means such as a diode D1, the circuit is arranged so that a reversal of voltage occurs across the choke LA as the charge across the commutating capacitor C reaches the supply voltage following commutation of a second main controlled rectifier SCR3 and the rectifier means D1 is forward biased on firing the first controlled rectifier SCR1 to commence a new inverter half cycle so as to effectively clamp the supply voltage E across the choke LA such that energy stored in the choke during commutation is fed back to the supply. The thyristor pairs SCR1, SCR2 and SCR3, SCR4 are fired alternately to provide a squarewave output to the load. If SCR5 is fired to commutate SCR3, SCR4 and considering SCR3 only, the voltage at point A drops sharply to commutate SCR3 but begins to rise towards the supply voltage E as the capacitor C is charged in the reverse direction. When it reaches the supply voltage SCR1 is fired and as the voltage across LA continues to rise the diode D1 becomes forward biased and the voltage across the choke LA occurs across the primary winding of the autotransformer T1. The voltage now occurring across the secondary of T1 forward biases diodes D1 and D2 and clamps the supply voltage E across the secondary winding. This effectively clamps the supply voltage across the choke LA and excess commutation current from the circuit including the choke LA and primary winding of T1 is fed back into the supply. When the voltage across the choke LA falls to its normal operating value the diode D1 becomes blocked and the energy recovery is completed. The diodes D3 and D4 provide path for the reactive load current when the main thyristors are non-conducting. The operation of the lower part of the circuit including choke LB and transformer T2 is similar to the above.
Patent GB-983951-A (GB)
Title: Improvements in and relating to the feeding of thin films
IPC: B29C71/00
Filed: 1959-12-14
Abstract: 983,951. Feeding webs. A. S. BAXTER. March 14, 1961 [Dec. 14, 1959], No. 42386/59. Heading B6B. A thin plastic film 11 is fed to a longitudinal slitting apparatus 16 by a driven roller 13 having a surface 14 composed of porous material connected to a vacuum source 15. The material may be sintered bearing material such as that known under the Registered Trade Mark " Oilite " or foamed plastic such as polyurethane. The film may be cut transversely instead of longitudinally. In this case, the film is held stationary beneath a reciprocating blade by a perforated plate connected to vacuum through a timed vacuum control valve.
Patent GB-960240-A (GB)
Title: New silicon compounds
Inventor: IBBOTSON ARTHUR
IPC: C07F7/18
Filed: 1961-11-28
Abstract: The invention comprises alkoxy silanes of the general formula: Ry Si[(OCnH2n)a (OCmH2m)bX]4-y wherein R is a hydrocarbon radical optionally substituted with chlorine, X is a monovalent radical derived from a compound XH in which H is a hydrogen atom reactive with a cyclic oxide, y is 0, 1 or 2; n is 2, 3 or 4, m is 3 or 4, a is 0 or an integer and b is greater than 4, which are used in the preparation of polyurethane foams.  The silanes may be prepared by reacting silica tetrachloride or an appropriate chloro-silane with (a) monohydric alcohols of general formula H(OCnH2n)a (OCmH2m)bX wherei X, a, b, n and m have the values above, in presence of pyridine and acid binding agent, (b) the sodium salt of the above monohydric alcohols, or (c) by ester interchange, e.g. between tetraethoxy silane and a monohydric alcohol as defined above. Specified starting materials are CH3SiCl3, (CH3)2SiCl2; CH3Si(OC2H5)3, (CH3)2Si(OC2H5)2, C6H5SiCl3 and C6H5C2 H4Si(OC2H5)3. R may be straight or branched chain alkyl, cycloalkyl, aryl or aralkyl, substituted or unsubstituted, the same or different and among those specified are methyl, iso-butyl, cyclohexyl, benzyl and tolyl.  The compounds XH used to obtain radical X include monohydric aliphatic, cycloaliphatic and arylaliphatic alcohols, phenols, secondary amines, carboxylic acids or mono N-substituted carboxylic amides. Many are specified and include isooctanol, cresols, N:N dialkylethanolamines, N alkyl acetamides, butyric acid and lauric acid.  When a above is an integer the copolymers may be random or block copolymers, the oxyalkylene residue of molecular weight of 250 to 3,000 containing at least 50% of oxyalkylene units containing at least 3 carbon atoms per unit. Polyurethane foams are prepared by reacting organic polyisocyanates and hydroxyl group containing polymers having at least two hydroxyl groups per molecule in the presence of water preferably 1% to 10% by weight of the hydroxylic polymer and/or a low boiling liquid, said process being carried out in presence of an alkoxyl silane as define above.  Hydroxyl group containing polymers specified are polyesters and polyesteramides having molecular weights of 200 to 5,000 and polyethers having molecular weights of 200 to 8,000 containing at least two isocyanate reactive groups.  Many examples are given along with their methods of preparation. Low boiling point liquids used in amounts of 1% to 100% by weight based on the hydroxylic polymer are inert towards isocyanates and have boiling points less than 75 DEG C., e.g. fluorinated alkanes.  The alcoxysilane is incorporated in amounts of from 0.1% to 5.0% by weight of the hydroxy group containing polymer, and in addition, 0.01% to 2.5% by weight of a block copolymer (MW. 1,000 to 10,000) or a silicone oil may also be added.  Examples 1 to 3 describe the preparation of: Si [(OC3H6)8.6 OC8H17]4; CH3Si[(OC3H6)14.1 O.C8H17]3 and CH3Si[(OC2H4)15.5 (OC3H6)11.7OC8H17]3 and Examples 4 to 9 the preparation of polyurethane foams in presence of the products of Examples 1 to 3.
Patent GB-920733-A (GB)
Title: Hydraulic jacks
IPC: F15B15/26
Filed: 1961-11-29
Abstract: 920,733. Hydraulic apparatus. MESSERSCHMITT A.G. Nov. 29, 1961 [Nov. 29, 1960], No. 42636/61. Class 69 (2). An hydraulic jack comprises a cylinder 1 having a piston and piston-rod 5 which can be locked in position by a spring cage locking system secured to the piston and having movable segments 6, the segments being adapted to be held in a locking position by piston means 4 movable by the hydraulic pressure built up in the cylinder. A valve housing 10 is secured to the rod and has a valve cone 11 urged by a spring 15 against a valve seat 12 which in turn is urged by a spring 16 against the housing. A hollow control-rod 8 is slidably mounted in the rod and has pins 17 which, when the rod is at the end of its stroke and the segments engage a widening 28 in the cylinder, abut a fixed sleeve 3 to open communication between a bore 23 in the control-rod 8 and passages 24, 25 in the piston-rod and sleeve. As pressure builds up in the cylinder, the valve cone 11 is lifted from the seat 12 to permit fluid in the cylinder to pass through a bore 20, the seat 12, grooves 22 in the cone, and passages 23, 24, 25 to a chamber 26 to move the locking piston 4 to a position wherein it retains the segments 6 in engagement with the widening. If the pressure in the cylinder drops, the valves maintain the fluid in the chamber 26 to prevent possible unlocking of the jack. The jack is unlocked by fluid-pressure supplied to a port 29 increasing the pressure in chamber 26 to a value sufficient to lift the seat 12 from the housing so that fluid is released from the chamber and the locking piston can move from engagement with the segments.
Patent GB-970858-A (GB)
Title: Method of and apparatus for carrying out metallurgical processes
IPC: C21C5/32
Filed: 1960-12-12
Abstract: Metallurgical processes, e.g. refining crude iron or steel, or producing alloys, are carried out by blowing an oxygen-containing gas, e.g. pure oxygen, on to a molten charge disposed in a refractory lined vessel, e.g. a converter, in the form of a hollow jet of cylindrical or conical shape to form an annular reaction zone on the surface of the molten charge, and simultaneously adding finely divided solid admixtures into the vessel without using a pneumatic carrier medium through the jet interior and into the annular reaction zone. The admixtures may be formed by a mixture of slag forming materials such as CaO, Fe, Si, Mn, Al, Fe-Si or Fe-Mn, and optionally alloying materials added as oxides, e.g. Cr, Mo, Mn oxides, or ores containing such oxides with reducing substances, e.g. fine coal or Al powder.  Granular or powdered carbonaceous materials, e.g. coke, lignite or coal, may be introduced into the vessel as admixtures with or without other finely divided materials during the main boiling period of the process, preferably between the third and fifteenth minute of the blowing operation.  The supply of blowing gas is adjusted to the introduction of carbonaceous materials to obtain an oxidizing, a neutral or reducing atmosphere in the vessel. The atmosphere may be changed from reducing to oxidizing in the conversion of an iron charge into steel to adjust the carbon content of the charge.
Patent GB-1190526-A (GB)
Title: Semiconductor Device Intended Especially for Microwave Photodetectors.
IPC: H01L31/10
Filed: 1968-09-09
Abstract: 1,190,526. Semi-conductor devices. POLSKA AKADEMIA NAUK. 9 Sept., 1968 [8 Sept., 1967; 12 Sept., 1967], No. 42760/68. Heading H1K. [Also in Division G1] A semi-conductor photodetector comprises three regions of the same conductivity type, the outer two regions h being relatively highly doped while the inner region l is relatively lightly doped. The width of the inner region I is less than the minority carrier diffusion length therein, the outer regions h being thicker than their corresponding minority carrier diffusion lengths. The device exhibits a voltage-variable capacitance, and a light intensity-sensitive I-V characteristic. When mounted as shown in a microwave cavity, superfluous semi-conductor material having been removed electrochemically, the detector may be used to modulate a microwave signal in response to the intensity # of an incident beam of light, provided that the microwave frequency is high enough to prevent photocarriers from leaving the inner region l of the device.
Patent GB-1456633-A (GB)
Title: Alloy production high strength stainless steel having a high resistance to  corrosive and abrasive wear in corrosive environments particu
IPC: C23C14/30
Filed: 1972-09-15
Abstract: 1456633 Electron beam heating for vapour deposition of alloys DEFENCE SECRETARY OF STATE FOR 13 Dec 1973 [15 Sept 1972] 42921/72 Headings C7D and C7F In a vapour deposition apparatus for forming alloys by evaporating constituents on to a movable collector by means of electron guns 25, 26, 27, 28 which are deflected in a raster pattern over the source 24, the guns oscillate in phase along the source. Material already heated by guns 19, 23, 30 is fed through a channel 23 to the source 24. The pressure in the vapour chamber may be monitored by an ionization gauge 12. In a modification to avoid wastage of heat, the heat supplied to the outer guns 25, 28 may be adjusted by varying the power supplied to the guns.
Patent GB-1089625-A (GB)
Title: Improvements in or relating to the fitting and removal of marine propellers
IPC: B63H1/20
Filed: 1965-10-11
Abstract: 1,089,625. Jointing. J. M. LANGHAM. Oct. 3, 1966 [Oct. 11 1965],No. 43115/65. Heading B3V. [Also in Division B7] A marine propeller driven up hard on to a shaft 2 along a keyway 3 which prevents circumferential movement by means of a nut 5 has a boss 1 provided with a plurality of longitudinally extending holes 4, so that to remove the propeller from the shaf upon removal of the nut 5, steam is passed through said holes 4, causing the boss 1 to expand in a uniform and controlled manner sufficient to release the propeller from the-shaft.
Patent GB-1471568-A (GB)
Title: Reed contact units
IPC: H01H36/00
Filed: 1974-10-07
Abstract: 1471568 Reed contact units B E SHLESINGER and C D MARINER 7 Oct 1974 [9 Oct 1973] 43384/74 Heading H1N [Also in Division H2] A reed contact spring for a sealed magnetic reed contact unit has a hinge part 4 between its support section 2 and contact section 6 and comprising a leaf spring of a thickness of less than À003 which has been cold worked so that it is more dense is less ductile, substantially harder and has a substantially higher tensile strength than the contact section 6. The hinge part 4 is flexible to at least 25 degrees or even to 180 degrees. The reed shown in Figs. 1 and 4 has been worked by a die on the surface 10. Sides 12, 14 can be cut away to produce a flat sided area (Fig. 6, not shown) or cut to align with sections 2 and 6 as in Fig. 7, the hinge section acting as a face. The sections 2 and 6 may be aligned (Figs. 9 to 12, not shown) instead of offset as in Fig. 1. The hinge section may be concave on both sides (Fig. 11, not shown) or have two concave regions (Fig. 15) providing a centre stable arrangement. Fig. 18 shows hinge parts 56, 58 on each side of a contact section 60.
Patent GB-1483966-A (GB)
Title: Vapourized-metal cluster ion source and ionized-cluster beam deposition
IPC: C23C14/22
Filed: 1975-10-22
Abstract: 1483966 Coating by vacuum deposition SHARP K K 22 Oct 1975 [23 Oct 1974(2) 13 Jan 1975 (2) 29 March 1975 20 May 1975 15 July 1975 6 Aug 1975] 43459/75 Heading C7F In a vacuum vapour deposition coating process, the coating material is heated in a vessel with a restricted opening which is in communication with an enclosed evacuated region containing the substrate, so that the vapour pressure of the material is sufficiently high that the vapour passing to the evacuated region forms clusters or aggregates of the atoms or molecules, which are then ionized and accelerated towards the substrate. In the embodiment shown in Fig. 2 the coating material such as Cu, Pb, Si or ZnS, 14 is heated by resistive element 15 in crucible 5 located in vacuum chamber 1, the vapour pressure in the crucible being 10<SP>1-2</SP>-10 Torr and the vacuum in the chamber 1 being 10<SP>-3</SP> - 10<SP>-6</SP> Torr. The vapour is discharged as a jet through aperture 12 and ionized by a high voltage from source 9 applied between the crucible, positive, and the annular ion extractor electrode 6 negative. The ions are accelerated towards the substrate 19 by an electron stream produced from a heated electron emitting filament 10. The deposit may be regulated by an adjustable shutter 21. The substrate may be metal, stainless steel, semi-conductor, rock salt, plastics such as MYLAR (Trade Mark) and wood. Many different embodiments are described, the crucibles may have several apertures and they may also be located above the substrate.
Patent GB-1385883-A (GB)
Title: Board golf game
IPC: A63F3/00
Filed: 1972-03-17
Abstract: 1385883 Golf board game H F N LTD 18 June 1973 [17 March 1972] 43471/71 Heading A6H Apparatus for playing a board game comprises a plan of a golf course having a number of playing areas each subdivided by a grid, cards for specifying the movement of playing pieces which fall on subdivisions 6 representing hazards and dice having different sets of numbers on their faces. Printed money is provided for winning scores to be rewarded.  Three fairway dice permit long, medium and short shots. They each indicate distances and directions (e.g. "hook" and "slice"). Two putting dice provide for shots from inner and outer green areas. - Packs of "trouble" and "bunker" cards are provided. For Figure see next page
Patent GB-1354795-A (GB)
Title: Process and device for homogenising liquids
IPC: B01F5/06
Filed: 1971-09-17
Abstract: 1354795 Emulsifying apparatus ALFA-LAVAL BERGEDORFER EISENWERKE GmbH 17 Sept 1971 [19 Sept 1970] 43509/71 Heading B1C Apparatus for homogensing a liquid containing a dispersed immiscible phase comprises an annular passage 2 through which liquid is forced inwardly under conditions causing cavitation. As described the gap has coaxial annular grooves 6 in at least one face and by suitable dimensioning cavitation is caused in the ungrooved zones, the cavities collapsing in the grooves with intense homogenising action. The grooves are preferably closer together towards the axis. As the crosssection of the flow decreases inwardly, the pressure in each succeeding non-grooved zone will be lower than in the preceding one with successive cavitation effects. A conventional shearing nozzle 8 is preferably disposed upstream of the annular gap to effect prehomogenisation.
Patent GB-1024287-A (GB)
Title: Dispenser for fluent materials
IPC: A47J31/40
Filed: 1964-10-26
Abstract: 1,024,287. Delivering measured quantities of granular material. MACHINE MADE SALES PTY. Ltd. Oct. 26, 1964 [Nov. 12, 1963], No. 43573/64. Heading B8N. [Also in Divisions A4 and F2] Fluent material, e.g. powdered, coffee, milk, tea or sugar, is housed in a container 4 and dispensed through a neck 5 which contains a butterfly valve 11 mounted on a spindle 10, the valve being movable rapidly from one closed position through an intermediate open position to a second closed position. The valve may be elliptical or diamond shaped and the spout 7 of neck 5 of circular or square cross-section. The valve is operated by rotating a shaft 13 having a crank-arm 14 connected by a stretched tensionspring 15 to the free end of a crank-arm 16 on the spindle 10. On turning the shaft 13 the spring 15 is stretched and shifted until its line of action crosses a dead-centre position whereon the spring snaps the valve to the second closed position while dispensing a quantity of the material. This quantity is primarily the amount of material within the space swept through by the upper half of the valve 11 and thus it may be varied by altering the size of the valve 11, spout 7, or diameter of the spindle 10. An agitating rod 21 may be provided to prevent the material becoming compacted. Several dispensers may be incorporated in a beverage dispensing unit with a supply of hot water and disposable cups.
Patent GB-1048862-A (GB)
Title: A process and apparatus for the preparation of mercaptobenzthiazole
IPC: B01J19/20
Filed: 1963-11-06
Abstract: <PICT:1048862/C2/1> Mercaptobenzthiazole is obtained continuously by running an aqueous solution of an alkali metal or an alkaline earth metal salt of mercaptobenzthiazole through a flow tube at a velocity of 0.1 to 10 metres per second at a temperature of 0 DEG  to 100 DEG C. and mixing said aqueous solution, whilst it is passing through the flow tube, with an aqueous solution of an inorganic acid in an equivalent ratio of at least 1 : 1.  An apparatus (see Figure) for carrying out the process, comprises a flow tube 1, provided with an inlet 2 for the mercaptobenzthiazole salt solution, an inlet 3 for the acid, and a conveyer stirrer 4 which is driven by a motor 9; the reaction mixture flows out past a pH cell 5 to a rotary filter 6.  A membrane valve 8 which determines the acid flowing into the tube is controlled by the pH cell 5 via a control path 7. The pH may be maintained constant within the range of 1 to 8, being preferably adjusted to 7.
Patent GB-1200299-A (GB)
Title: Improvements in the manufacture of moulded footwear
Inventor: BURSLEM ROBERT GRAHAM
IPC: A43B7/32
Filed: 1966-10-04
Abstract: 1,200,299. Boots &c. FUTURA RUBBER CO. Ltd. 2 Nov., 1967 [4 Oct., 1966], No. 44253/66. Heading A3B. [Also in Divisions B4 and B5] A reinforced industrial boot e.g. a Wellington boot, is produced by spot welding a hardened steel toe cap 10 to a flexible stainless spring steel insole 11 over the interior area whereof a foamed natural or synthetic rubber of polyether pad 14 is attached by adhesive. The unit so produced is mounted on a last, provided with a boot lining sock 15, whereon it is retained by the compression of the pad 14 or by engagement of a hook like extension (not shown) of the last within an insole aperture. The boot exterior 15 is then formed by injection or slush moulding polyvinyl chloride on to the last. The cap 10 may be drilled and countersunk in several places to provide a key for the polyvinyl chloride and the toe cap interior surface may be coated with adhesive for the boot lining sock 15. The insole 11 may cover both heel and sole boot portions or merely the latter or a part thereof.
Patent GB-1007972-A (GB)
Title: Biochemical process for the preparation of cyanocobalamin
Inventor: ROLOVICH IVAN
IPC: C12P19/42
Filed: 1960-12-23
Abstract: Hydroxy cobalamin and Vitamin B12 are obtained by cultivating Propionibacterium Freudenreichii or Propionibacterium Shermanii, inoculating a suitable medium with the culture, thereby producing Vitamin B12 and its analogues and then, at the end of its growth and production cycle, separating the cells from the broth, and suspending these in physiological saline in the presence of 5-6 dimethylbenzimidazole or this compound together with a non-toxic salt capable of releasing cyanide ions such as sodium thiocyanate or potassium thiocyanate so as to convert the analogues to cobalamin and Vitamin B12.  In examples, the bacteria are kept in a "stub culture" prepared with peptone, meat extract, yeast, tomato juice and agar and then this culture is grown on a coin steep-dextron medium.  The cells are separated as a dense cream and are then suspended in sodium chloride solution and the required precursors added. The reaction is stopped when optimum conversion of the analogues to Vitamin B12 has been effected.  The vitamin may be extracted by the method described in Specification 1,007,971.