baber/WOPTO huggingface dataset:
Patent GB-677747-A (GB)
Title: Printed electronic circuit
Inventor: KHOURI ALFRED SAFAY
IPC: H05K1/03
Filed: 1950-03-21
Abstract: 677,747. Printed circuits. GLOBE-UNION, Inc. March 21, 1950, No. 7033/50. Class 36. A printed circuit comprises a high dielectric constant base plate having condenser plates bonded thereto, a conductor connected to one of the condenser plates and a layer of low dielectric constant material interposed between the base-plate and the conductor and bonded to the base-plate. This arrangement is stated to reduce stray capacities between the conductor and other parts of the circuit. The base-plate 10 may be of ceramic material having a dielectric constant of more than 70. A layer 11 of vitreous enamel is applied to part of one side of the plate 10, which is then fired. Condenser plates 12, 13 are applied to opposite sides of the plate 10 and a conductor 14 is applied over part of the layer 11. The parts 12, 13, 14 may be stencilled on to the base, using a conductive material containing silver, and the unit is then fired again to bond the parts together. A resistor 15, connecting conductor 14 with condenser plate 12 is applied over the glaze 11 as by stencilling with a paint containing carbon which is subsequently oven dried. External leads 16, 17, 18 are then soldered in position, completing the circuit shown in Fig. 6. In an alternative embodiment the layer 11 may comprise a resinous material such as a phenolic resin or a silicone resin. In this case the condenser plates 12, 13 are fired on the base-plate before the application of the layer 11 and the conductor 14. Specification 608,579 is referred to.
Patent GB-839517-A (GB)
Title: Improvements relating to magnetic storage devices
Inventor: WOODCOCK RAYMOND
IPC: G11B5/48
Filed: 1958-03-05
Abstract: 839,517. Magnetic recording and reproducing apparatus. METROPOLITAN-VICKERS ELECTRICAL CO. Ltd. Feb. 3, 1959 [March 5, 1958], No. 7109/58. Class 40 (2). Means for adjusting the spacing between a magnetic head 1 and a record medium 3 comprises a member 4 which slidably registers the head 1 relative to said medium 3, means, such as a clamp 8, foi locking the head 1 to said member 4, and screw or similar means 10 for fine adjustment of the head 1 relative to said medium 3.
Patent GB-1083251-A (GB)
Title: Improvements relating to gas-cushion vehicles
Inventor: NICHOLSON BRIAN JOHN
IPC: B60V1/16
Filed: 1964-02-20
Abstract: 1,083,251. Air cushion vehicles. HOVERCRAFT DEVELOPMENT Ltd. Feb. 19, 1965 [Feb. 20, 1964], No. 7182/64. Heading B7K. An air cushion vehicle 1 has the cushion bounded along one side at least by a wall comprising a plurality of contiguous hinged members 5 pivoted at 6 on the structure, to which it is attached also by flexible seals 11 and 12. The cavity 16 so formed is pressurized through port 15 and valve 18 and a flexible duct 17 leads air, controlled by valve 19, to a port 14 in member 5. A flexible skirt member 4 is attached to each member 5 and the air from each duct 17 flows down the surface of the skirt to form an air curtain 13. The duct 17 may be dispensed with, air for the curtain flowing directly from cavity 16, which forms in either arrangement a recuperation chamber to provide a restoring force should skirt 4 and member 5 be deflected upwardly by an obstacle. The member 5 may be balanced about pivot 6 by a spring or by extending the member equally on either side of the pivot 6 so that cushion pressure acts on the member to provide a restoring force. The skirt members 4 are U-section of the form disclosed in Specification 1,043,351.
Patent GB-1441682-A (GB)
Title: Electric lock assembly
IPC: E05B49/00
Filed: 1974-02-18
Abstract: 1441682 Locks R W GERBER 18 Feb 1974 7285/74 Heading E2A The electromagnet which operates the door bolt or controls the ignition circuit of a motor vehicle is energised by a key-operated barreltype lock in which the bitting of the key makes, or causes to be made, a set of contacts which act through an electronic circuit to feed the electromagnet. The rotary barrellike element of the lock comprises a pair of disc-shaped end portions 57, 58, the front one of which has a key-slot, joined by a longitudinal member 50 which is slotted at 52 to guide the key. In the case where a conductive key is used, its nose 402 makes contact with a plate 400 connected to a source of power, e.g. a vehicle battery 300, Fig. 7. The bitting 30 of the key makes contact with, or causes spring-contacts to make contact with, fixed contacts 120 as the key is rotated. This closes one or more of contacts 51-57, Fig. 7 connected to transistors T 1 -T 7  which are selectively connected to an alarm circuit 510-522 responsive to a wrong bitting pattern, and to a relay 320 which energises the bolt releasing solenoid S (Fig. 3, not shown). A key-sensing contact (601, Fig. 9, not shown) may be used to prevent the door being locked with the key in the ignition lock. Additional alarm contacts 756 and 800, and a contact 900 or contacts 920 which enable the vehicle doors to be locked while it is running. Other contacts for controlling the engine ignition may also be included (Fig. 4, not shown).
Patent GB-827375-A (GB)
Title: Improvements in preparation of polysulfide polymers
IPC: C08G75/16
Filed: 1956-03-08
Abstract: Polysulphide polymers are prepared by (i) reacting one or more organic polyhalides comprising an aliphatic hydrocarbon or oxahydrocarbon radical having a maximum of four halide groups, with an aqueous inorganic thiosulphate solution; and then (ii) treating the resultant organic polythiosulphate solution with a mixture of water-soluble hydrosulphide and sulphide to produce the desired polymer, said mixture containing 0.002-2 mols. of hydrosulphide per mol. of monosulphide, and the molar ratio of the total sulphide equivalent of the mixture of water-soluble hydrosulphide and sulphide to the thiosulphate equivalent of the polythiosulphate being within the range of 0.4-0.65 : 1.  In a preferred embodiment the polythiosulphates of (ii) are derived from the polyhalides of (i) in a proportion of 90-99 mol. per cent dihalides to 1-10 mol. per cent of tri- and/or tetra-halides, to provide polymers with the desired degree of cross-linking.  Lists of haloethers, haloformals and halohydrocarbons are given, the following being particularly preferred: bis (b -chloroethyl) ether, bis (b -chloroethyl) formal, bis (d -chlorobutyl) formal, 1,2,3-trichloropropane and tetrachloropropylformal.  The only sulphur compounds specified are all sodium salts, but the sulphides may be of higher rank than the monosulphide, e.g. Na2S1-2.  The polymers may be cured with a mixture of TiO2, p-quinone dioxime, diphenyl guanidine, with or without sulphur; or with lead peroxide.  Reference has been directed by the Comptroller to Specification 763,530.
Patent GB-458172-A (GB)
Title: Means to transmit power from one driver shaft to a driven shaft with variable rate of transmission
IPC: F16H39/38
Filed: 1935-03-08
Abstract: 458,172. Variable - speed gearing. KRISTOFFERSEN, O., 35, Ullevalsveien, Oslo, Norway. March 8, 1935, Nos. 7358 and 7359. Void [Abridged as open to inspection under Sect. 91 of the Acts, Sept. 10, 1935]. [Class 80 (ii)] Variable-speed gearing comprises a planetary train P controlled by an hydraulic generator G delivering to a motor M which drives the driven shaft 13. The driving-element is a sleeve 7 which carries planet gears 8 meshing with a sun gear 10 and an annulus 12. The gear 10 drives only a central member 20 of the generator G. The annulus 12 drives to a carrier 16 of generator members 21 and beyond that to the driven shaft 13. Relative screwing of the generator parts 20, 21 drives oil through passages 27, and valves 33 to the motor M causing the motor parts 23, 24 to turn while the oil escapes to a chamber 36 whence it passes back through a pipe 37 to a chamber 38 at the inlet end of the generator G. This happens so long as valves 33 are open. The valves 33 are closed by a governor 48 responsive to the speed of the shaft 13. There is preferably a governor for each of the valves 33 which are closed in succession. To disconnect the drive, a master valve 44 is opened by hand.
Patent GB-1056633-A (GB)
Title: Fatigue life gauge
Inventor: HARTING DARREL
IPC: G01L1/22
Filed: 1965-02-19
Abstract: 1,056,633. Measuring strain electrically. BOEING CO. Feb.19, 1965, No. 7363/65. Heading G1N. The change in the resistance or the temperature coefficient of resistance of a wire strain gauge attached to the surface of a structure under test is correlated to the predetermined relationship between resistance or temperature coefficient and fatigue life of the test structure material, enabling the cumulative fatigue damage or remaining useful life of the structure to be ascertained. The strain gauge may be formed of a special shape and prestressed to produce a desired characteristic. The method is usable with constant or random loading of the test structure.
Patent GB-1007647-A (GB)
Title: Process for the dealkylation of alkyl aromatic hydrocarbons
IPC: C10G47/08
Filed: 1962-02-26
Abstract: Dealkylation of alkyl aromatic hydrocarbons is carried out by passing the hydrocarbons, together with hydrogen, at an elevated temperature of not more than 520 DEG  C. over a catalyst comprising a major proportion of a refractory oxide of Groups II, III or IV, a minor proportion of a platinum group metal and a minor proportion of fluorine, said fluorine being added to the oxide already containing the platinum group metal.  Conditions specified are temperatures of 400-520 DEG  C., pressures of atmospheric-1500 p.s.i.g., space velocities of 0.1-10 v./v./hr. and hydrogen rate of 1000-15000 S.C.F./B.  Catalyst specified is platinum/alumina/fluorine. The dealkylation of a kerosene extract is exemplified.  Specification 867,990 is referred to.
Patent GB-1454234-A (GB)
Title: Electrical switch devices
IPC: H01H43/10
Filed: 1974-02-19
Abstract: 1454234 Movable magnet switches COMMUNICATIONS PATENTS Ltd 7 Feb 1975 [19 Feb 1974] 7410/74 Addition to 1285351 Heading H1N A selector switch as claimed in the parent specification has an optionally energizable electromagnet movable to operate the contact units. The electromagnet 15, 16 may have a ferrite core magnetizable by a current pulse in its surrounding coil or a permanent magnet which is neutralized whilst its surrounding coil is energized. The contact units are mounted on a conductive board 1 with terminals connected by respective resistors 11 to a common annular terminal 9 on a rear insulating plate 2. The electromagnet is mounted on an arm 13 on a rotatable shaft 14 providing conductive paths to the electromagnet coil via its outer conductive tube and insulated inner rod 17.
Patent GB-225106-A (GB)
Title: Improvements in pulverised fuel furnaces
IPC: F23D1/00
Filed: 1924-03-24
Abstract: 225,106. Babcock & Wilcox, Ltd., (Lulofs, W.). March 24, 1924. Pulverulent-fuel furnaces; cooling; stoking.-A furnace for powdered fuel is provided with a large number of upright or upwardly directed burners arranged in the lower part of the combustion chamber so that a short broad flame is obtained; also provision is made for cooling the burners. Fig. 2 shows one arrangement of a boiler furnace in which powdered fuel is blown through tubes 12, 13 and enters the furnace through burners 14 fitting into burner bodies 15, 16. The parts 15, 16 also fit around tubes 4 supplied with water from the boiler to cool the burners. Other cooling tubes 5 are provided in the lower part of the combustion chamber 2. As shown in Fig. 3, the burners are constituted by openings between the links of a wide endless chain 17 supported by rollers 18, 19, one or both of which is driven. The upper flight of the chain is also supported by rollers 21. Powdered coal supplied to chambers 25 passes through openings in the walls 24 into chambers 22 and is then blown vertically through the chain into the combustion chamber. To prevent lateral escape of fuel and air, air is also blown into end spaces formed by walls 27, 28, 29, and passes through the parts of the chain above the spaces. Detachable bottoms 31 are provided in the chambers 25. The upper flight of the chain may rest on cooling tubes and water supplied-cooling tubes may also be provided above this part of the chain. The chain can also be cooled directly by sprinkling water on it or passing its lower part through a water tank.
Patent GB-879354-A (GB)
Title: Improvements in cores and moulds for casting metals
IPC: B22C9/10
Filed: 1960-03-02
Abstract: 879,354. Tubular heat exchange elements. VILLNER, L. H. V. March 2, 1960 [March 10, 1959], No. 7418/60. Drawings to Specification. Class 64(3) [Also in Group XXII] A heat exchange tube is made by casting around a sponge iron core which is so permeable as to allow flow of a gas or liquid therethrough.
Patent GB-696155-A (GB)
Title: Improvements in or relating to temperature measuring apparatus
IPC: G01K13/00
Filed: 1951-03-30
Abstract: 696,155. Electric temperature measurements. SANGAMO WESTON, Ltd. March 30, 1951 [June 22, 1950], No. 7459/51. Class 40 (i) [Also in Group XX]. A temperature-sensing device for determining the average temperature of a liquid body comprises a member adapted to be mounted, e.g. in a tank of liquid, so as to be movable within the liquid and having a temperature-sensitive element carried thereby and means for retaining the element immersed and extending throughout the depth of the liquid at all levels thereof. The member may comprise a hollow tube pivoted at its lower end to the bottom of the vessel containing the liquid and having at its top end a float pivoted thereto. An electrical resistance wire sensitive to temperature changes is contained in the tube and distributed throughout its length. Alternatively the tube may extend through the roof of the tank to a pressureactuated indicator and be filled with mercury or other suitable liquid having a relatively high coefficient of 'expansion with temperature increase. As shown in Fig. 6 a pantograph mechanism has one end pivotally attached to a support 62 on the bottom of the liquid containing vessel and a float 60 pivotally attached to the other end. Each arm of the pantograph carries a temperature-variable resistance coil 63, all the coils being connected in series to, e.g. a Wheatstone bridge to obtain an indication of the temperature.
Patent GB-1137056-A (GB)
Title: Device for mixing fodder substances
IPC: B01F29/63
Filed: 1966-02-21
Abstract: 1,137,056. Mixing apparatus. A. KLEINDIEK. 21 Feb., 1966 [22 Feb., 1966], No. 7516/66. Heading B1C. A mixer for fodder comprises a drum 4 supported and rotated by a horizontal hollow shaft 11 having apertures for admission of liquid into the drum. The drum has a closable filling and emptying opening and fixed parallel tumbling bars 5 attached to its inner surface, and is mounted on a sledge-like frame 1 having a pair of caster wheels.
Patent GB-1499680-A (GB)
Title: Burner for fluid fuels
IPC: F23D11/40
Filed: 1975-02-24
Abstract: 1499680 Burners R FETZNER and R SIEBER 24 Feb 1975 [2 March 1974] 7586/75 Heading F4T A burner comprises a fluid-fuel-nozzle 3, Fig. 1, for feeding the fuel in the form of a cone a into a combustion chamber 1, and two or more air nozzle tubes 6, symmetrically disposed around the cone, nozzles 6 being adapted to emit air in layers into the cone. Air passes in the direction b between the nozzles and igniters 4, and also into nozzles 6 at c and thence into chamber 1 through straight or curved slits or openings 7. Each nozzle 6 is rotatable, and axially movable about its axis to vary the air supply direction to the cone, the air in the nozzles being heated by combustion gases e. The nozzles may lie parallel to the surface lines of the cone a, Fig. 1, or parallel to its axis, Fig. 3 (not shown), or have openings providing air supply in both of these directions, Fig. 4 (not shown). In a modification, additional bores (16) for air supply, Fig. 6 (not shown), may be provided. Other arrangements including guide plates (19) &c. Figs. 7-10 (not shown), may be provided for regulating the direction of air supply. A bolt (27), rotating slide (28), or a slide tube (30), Figs. 11-13 (not shown), may be provided. The burner may include the combination of a bowl (33), and nozzles 6 which can be rotated and moved axially, Fig. 5 (not shown). There is disclosed several arrangements of air nozzles which can be moved axially and rotated, and also carried by an angle piece (35) which can also be rotated, Figs. 16-19 (not shown). A further combustible gas (h) may be mixed with the air (d), Figs. 20, 21 (not shown), and an angled drive may be provided for rotating the nozzles, Figs. 23, 24 (not shown).
Patent GB-231190-A (GB)
Title: Improvements in and relating to the cracking of mineral and other hydrocarbon oils
IPC: C10G9/40
Filed: 1925-03-20
Abstract: In producing low-boiling hydrocarbons from mineral or tar oils, crude oils or tars &c. by cracking, as described in Specification 221,559, [Class 32, Distilling &c.], the reaction is carried out at a lower temperature than usual (300-400 DEG  C.) so that only the lower-boiling constituents of the oils or tars are decomposed. The reaction may be carried out by atomizing the oils or tars with hydrogen or hydrogen-containing gases in presence of a catalyst which is liquid at the temperature of the reaction.
Patent GB-450082-A (GB)
Title: Improvements in electric cooking ovens
IPC: F24C7/08
Filed: 1936-03-13
Abstract: 450,082. Electric cooking ovens. MOFFATS, Ltd., Blackburn, and SMITH, E. S., 11, Somerset Avenue, Wilpshire, near Blackburn. March 13, 1936, No. 7660. Drawings to Specification. [Class 39 (iii)] An electric cooking-oven with a plurality of bottom heating elements and one or more top heating elements is provided with a wiring arrangement and single switch control whereby the top element or elements and the bottom elements may be connected in parallel the bottom elements may be cut out, or the top element or elements may be connected in series with part of the bottom elements.
Patent GB-1117956-A (GB)
Title: Padded arm for chairs or the like
IPC: A47C7/54
Filed: 1966-02-22
Abstract: 1,117,956. Upholstery. J. HARMAN HUNT Ltd. and E. E. G. PAGE. 16 Feb., 1967 [22 Feb., 1966], No. 7762/66. Heading A4M. A wooden chair arm 17 has a shallow recess 18 to receive a padded insert comprising a reinforcing layer 11 of hardboard with an overlying resilient layer 12 of rubber or foamed polyether which overhangs at least one side edges of the hardboard layer 11 so that the insert is retained in the recess 18 by compression of the overhanging part of the resilient layer 12 against a side of the recess 18. The insert is covered by upper 13 and lower 14 layers of woven fabric or plastics stitched, stapled or welded at their peripheries 15. The resilient layer 12 may comprise a foam backing on the cover 13.
Patent GB-1077372-A (GB)
Title: Improvements in or relating to air-conditioning apparatus
Inventor: FLOYD FREDERICK
IPC: F24F3/052
Filed: 1963-02-26
Abstract: 1,077,372. Mixing fluid streams. OZONAIR ENGINEERING CO. Ltd. Feb. 20, 1964 [Feb. 26, 1963], No. 7766/63. Heading B1C. [Also in Division F4] A mixing box 10 of air conditioning apparatus is supplied with hot, cold and humilified air through ducts 11, 12 and 13 respectively, and control means are provided to ensure that the volume flow rate of mixed air through the box outlet 26 remains constant. The control means comprise valves 14, 15, and 16 each of which is formed by five vanes which may be expanded by means of internal rubber bladders. Three of the vanes of the valve 14 are operated by a thermostat 17 and three vanes of the valve 16 are operated by a humidistat 24. The remaining vanes of the valves 14 and 16 and all the vanes of the valve 15 are operated by a static pressure regulator 18 to maintain the constant flow rate through the opening 26. Sound insulating glass fibre walls for the mixing box are provided. The humidified air supply preferably has 100% humidity and is so controlled as to be at the same dry bulb temperature as the air leaving the mixing box.
Patent GB-384869-A (GB)
Title: Improvements in rock drill
IPC: E21B1/30
Filed: 1932-03-16
Abstract: 384,869. Percussive drills. INGERSOLL-RAND CO., 15, Exchange Place, Jersey City, U.S.A. March 16, 1932, No. 7798. Convention date, Sept. 22, 1931. [Class 124.] A rock drill is provided with a fluidactuated differential slide valve, the motion of which relative to the piston is controlled to effect light or heavy blows by controlling the piston-controlled supply of fluid to the ends of the valve chamber to actuate the valve. Means for clearing the drill hole are also provided. The valve chest comprises two plugs f, g, in which is housed a sleeve valve mounted upon a bushing d around the rifle bar c of the rotating mechanism. The valve has heads p, q and a larger intermediate flange r which controls the supply passage o. When the valve is forward or rearward, fluid flows over the rear side and forward side of the flange r to the forward and rear cylinder end through the passages s, t respectively. Fluid passes intermittently from the cylinder through pistoncontrolled ports to the ends of the valve to effect its motion. The surfaces of the flange r constitute holding-areas. The fluid actuating the valve and piston exhausts through passages Z z communicating with the valve chamber between the ends and the flange of the valve respectively. Means to retard or advance the valve movement to effect light or heavy blows comprise piston-controlled ports 3, 4, 5 in a cylinder bore 6 controlled by a plug having a passage therein provided with radially and longitudinally spaced ports 9, 10, 11 adapted to register with the ports 3, 4, 5. Radiallyarranged ports at the other end of the plug may register with. a port 17 leading to the valve-chamber end, and a lug 12 on the plug engages one of three recesses 13, 14, 15, Fig. 2. A spring 22 engages the end of the plug. When pressure fluid is admitted to the rear end of the valve chamber, a portion passes to atmosphere through ports 16, 18, Fig. 3. When the valve reversal is delayed by rotating the plug 7 to make the ports 5 effective, the piston strikes heavy blows. When the valve reversal is made earlier with respect to the piston'stroke by making the port 3 effective, light blows are struck. In the latter case the action of the valve and piston are accelerated. The force of the blow is also reduced in consequence of an earlier exhaust from the rear cylinder end. The period of admission to the forward end of the valve chamber may be similarly varied. The back head L is partly or entirely removed to adjust the plug, which may alternatively be constructed to permit adjustment without dismantling the head L. The throttle valve G may be rotated to supply fluid to the passage 21 and plug to hold the valve forward. The piston moves back and fluid passes through the passage s and pistonstem flutes K to clear the drill hole.
Patent GB-1425639-A (GB)
Title: Filter press of the horizontal type
IPC: B01D25/12
Filed: 1973-02-16
Abstract: 1425639 Filter press SEITZ-WERKE GmbH 16 Feb 1973 [21 Feb 1972] 7801/73 Heading B1D A filter press comprising horizontally displaceable filter frames and plates 12, 13 has a conveyor 31 which moves a stack of single or double filer sheets, ("double sheet" means two sheets connected along one edge thereof) in a container 32 into a position above the filter frames and plates in whidh the sheets lie horizontally and has feed rollers 47 (Figs. 2 and 3 not shown) for removing successive single or double sheets from the stack and for feeding the sheets down chute 43 such that each single sheet or each sheet of a double sheet is located between a plate and a frame. After filtration plates and frames are separated by travelling wedge shaped forks 29 (Figs. 5 not shown) and the sheets are cleaned by sprays and scrapers mounted on piston arms which are on movable carriage 54. The press is provided with means for ensuring that the uppermost filter sheet of the stack is at an appropriate height so that it is contacted by the feed rollers. Filter aid (hieselguhr) may be applied to the filter sheet.