baber/WOPTO huggingface dataset:
Patent GB-510192-A (GB)
Title: Improvements in or relating to aircraft
IPC: B64C23/08
Filed: 1938-02-10
Abstract: 510,192. Aircraft with additional supporting surfaces. FAIREY AVIATION CO., Ltd., and LOBELLE, M..J. 0. Feb. 10, 1938, No. 4208. [Class 4] In an aircraft provided with rotors which may be mechanically driven or autorotative and which may be extended into the aircraft slip-stream or retracted to lie alongside the fuselage of the aircraft, the rotors are arranged to lie, when extended, immediately in the rear of the trailing edges of the wings of the aircraft. As shown, operation of a jack 21 through links 19 effects extension and retraction of frustoconical rotors 11 mounted on shafts 14. The rotors 11 may be driven, by an electric motor 22, in one or opposite directions according to the position of a member 39 of a dog clutch. The drive is transmitted through either bevel gears 24, 25, 28, 29 and spur gears 33, 34 or spur gears 33, 34. The gear 34 is mounted on a shaft carrying the rotor. A pin 26 forms the hinge about which the rotor is moved for extension or retraction.
Patent GB-926880-A (GB)
Title: Improvements in or relating to control systems for electrical generators
IPC: B66B1/06
Filed: 1960-02-08
Abstract: 926,880. Control of D.C. motors. DEWHURST & PARTNER Ltd., and G. E. MINNS. Feb. 8, 1960, No. 4385/60. Class 38 (3). [Also in Group XXXV]  In a lift - control system em - ploying a Ward-Leonard set MA, GA and having a conventional floor-selecting circuit SC, the energization of either of the mutually interlocked relay coils UCW, DCW for raising or lowering the lift, has the effect of passing a priming current through a separately excited generator control field winding GCn to cause the generator to build up in the required direction, this control winding being connected as a " suicide " winding at the end of the sequence. This is achieved through the closing of contacts UC2 or DC2 energizing the low-speed relay LSCW from the positive or negative side of rectifier R through contacts MC4 of the main contactor and resistor r6, thus preparing for the initiation of the lift motion. Operation of the low-speed relay LSCW closes contacts LSC1, LSC2 which closes a D.C. circuit from one side or other of the rectifier generator series field GSe, armature GA, interpole windings Gi, and the above-mentioned polarization control winding, and finally through a holding winding on relay coil LSCW. Operation of relay LSCW also closes contacts LSC3 to operate the main contactor coil MCW which closes the motorgenerator circuit at contacts MC2 and disconnects dynamic braking resistor r5 at contacts MC3 to initiate movement of the lift. Current through the control winding GCn causes the generator voltage to build up in opposition to the rectifier voltage, thus causing the low-speed contactor LSCW to drop out. Meanwhile the high-speed relay HSRW has been energized by the closing of contact UC1 or DC1 of the " up " or " down " relay UCW or DCW. This closes contacts HSR1 to complete the circuit of generator shunt field winding GSh, thus causing generator build-up. Acceleration of the lift is limited by a resistor r3 which is cut out of circuit by contacts TSR1 of top-speed relay TSRW at the top speed of the lift. The top-speed voltage is limited by resistor r2 so that the rate of acceleration decreases gradually up to top speed. Top speed is adjusted by resistor rl. At a predetermined shunt field current, relay DVW opens the series field diverter contacts DVI to stiffen the series field which effectively level-compounds the generator under top-speed conditions. It is described how the accelerating sequence is reversed during deceleration.
Patent GB-414766-A (GB)
Title: Improvements in the manufacture of alkyl halides
IPC: C07C17/08
Filed: 1933-02-13
Abstract: Alkyl chlorides and bromides are obtained by treating olefines of from 3 to 7 carbon atoms with hydrogen chloride and olefines of from 2 to 7 carbon atoms with hydrogen bromide or a mixture thereof and hydrogen chloride in presence of a contact mass containing solid porous adsorbent, at temperatures below the boiling point of the product of the particular reaction followed by distilling the product from the contact mass under reduced pressure without the application of external heat.  The reaction may be carried out at atmospheric pressure and at temperatures low enough to prevent the production of bye-products.  According to an example, propylene is treated with hydrochloric acid in presence of an adsorbent comprising silica gel and hydrous aluminium oxide with iron in the form of turnings, grains, rods &c. of large surface area up to 80--120 DEG  C. followed by vacuum distillation without external heating.  Other adsorbents specified include bauxite, zeolites, iron oxide gel, activated carbon, zinc, stannic and aluminium chlorides, and may contain, in place of the metallic contact agent, granular silica, brick, sintered alumina, or alundum.  Other olefines specified are butylene, amylene and hexylene or mixtures of these.  Mixtures of olefines with unreactive gases may also be employed.
Patent GB-1536980-A (GB)
Title: Set of building elements
IPC: E04B1/24
Filed: 1977-02-03
Abstract: 1536980 Metal building frameworks H KATHMANN 3 Feb 1977 [5 Feb 1976] 04412/77 Heading E1K A portal frame for a building, e.g. an agricultural shed or stable, built up from a series of such frames, together with purlins 7, roofing 6 and cladding 8, 8a, consists of C- section bars 1, 2 joined by connector pieces 5, 5a which fit within the channels of the bars and are secured in place by self-tapping screws (10, Fig. 2a, not shown), the bars 2 forming the roof-supporting rails having one flange cut-away to allow passage of one limb of the connector pieces 5. The purlins 7 may also be of C-section. Insulation material may be placed between the claddings 8, 8a and in the roof.
Patent GB-898809-A (GB)
Title: Improvements in nodular graphite cast iron
IPC: C21C1/10
Filed: 1961-02-07
Abstract: 898,809. Spheroidal graphite cast iron. FORD MOTOR CO. Feb. 7, 1961 [June 13, 1960], No. 4504/61. Class 72. A process of producing spheroidal graphite cast iron comprises providing a cavity in the bottom refractory lining of a ladle, placing an innoculating material, which is at least in part volatile, in the cavity, covering the innoculating material with a ferrous substance, and pouring in the molten iron to be treated. As shown, a ladle has a cavity 1a formed in the bottom lining 1 and into this cavity is placed an innoculant 2, e.g. a magnesium-iron alloy, a graphitising agent 3, e.g. ferro silicon, and the whole covered with steel scrap 4, e.g. boiler plate punchings. The molten iron to be treated is then poured in and melts the steel scrap allowing the graphitising agent and the innoculant to react with the metal.
Patent GB-875861-A (GB)
Title: A device to clear away the surface of the soil and clean topped beet during harvesting
IPC: A01D23/02
Filed: 1959-02-09
Abstract: 875,861. Root-crop harvesters. STOLL, W. Feb. 9, 1959 [Feb. 13, 1958], No. 4506/59. Class 6(3). A device for clearing away trash during beetharvesting comprises a rotary beater, the axis of which lies in a vertical longitudinal plane, and which carries several series of beater arms 6, 7, 8, the ends of the foremost beaterarms 6 being closer to the ground, in their lowermost position, than the ends of succeding series. This can be achieved, either by having beater-arms of equal length on a conical hub, Fig. 2, or of equal length on a cylindrical hub inclined forwardly, Fig. 3, or of unequal lengths on a horizontal cylindrical hub, Fig. 4, (not shown). As shown in Fig. 1a there are two stepped hubs 1, 11 arranged on parallel shafts 5, 15 driven in opposite directions and having beater-arms, whose effective lengths diminish rearwardly in the first set 6, 7, 8, but increase rearwardly in the second set 16, 17, 18. The shafts 5, 15 are offset on opposite sides of the crop-row. The beater arms are of rubber.
Patent GB-750039-A (GB)
Title: Twin-engined vehicle for fire fighting service
IPC: B60K5/08
Filed: 1954-02-16
Abstract: 750,039. Motor vehicles. OFFICINE VI. BERTI SOC. PER AZIONI. Feb. 16, 1954 [Feb. 27, 1953], No. 4529/54. Classes 79 (2) and 79 (3). A twin-engined vehicle for fire fighting is provided with two engines 5, 6 which drive, respectively, a rear axle B, and a rear axle C or fire pump 10. The engine 5 may also drive the front axle A. A joint control 11a for the two engines together, and independent controls 11b, 12 and 11c, 12a for the engine 6 alone and for the pump 10 are provided.
Patent GB-475567-A (GB)
Title: Improvements relating to plant comprising synchronous electrical machines and compressors or other lubricating machines
IPC: H02J3/42
Filed: 1936-02-14
Abstract: 475,567. Electricity supply. BRAUNKOHLE-BENZIN AKT.-GES., and ALLGEMEINE ELEKTRICITATS-.GES. Feb. 14, 1936, No. 4605. Void. Convention date, Feb. 14, 1935. Drawings to Specification. [Class 38 (iv)] Synchronizing .-Synchronous generators or motors coupled to reciprocating mechanical apparatus such as engines or pumps are operated in parallel at angular phase displacements which ensure even loading. Small auxiliary two-pole generators are mounted on each shaft and have their stators adjustable so as to give the required lining up. These generators are connected in series through a voltmeter which indicates when synchronism at the required displacement is reached, so that the generators or motors may then be paralleled. Means may be provided to prevent paralleling until within a predetermined degree of synchronism. Synchronizing may be made automatic.
Patent GB-608058-A (GB)
Title: Improvements in or relating to plug gauges
IPC: G01B5/08
Filed: 1946-02-14
Abstract: 608,058. Linear-dimension gauges. JONES (MACHINE TOOLS), Ltd., E. H., and CITNER, H. Feb. 14, 1946, No. 4653. [Class 106 (ii)] A plug gauge for use with an indicator gauge comprises a bell-crank lever 3 pivoted by a blade spring 6 in a slot 2 penetrating the bore of a hollow cylinder 1, a stop 5 being provided to limit the movement of the lever. One arm of the lever 3 carries a tungsten carbide tip 4, while the other is acted upon by the opposing forces of a spring-pressed spindle 9, the outer end of which is connected by means not shown to an indicator gauge, and a spring-pressed ball 8 placed in the hollow of a screw 6, through which the differential pressure of the two springs can be adjusted. The ratio of the effective lengths of the arms of the lever 3 can be finely adjusted by a screw 14 carrying eccentrically a ball-bearing on the plane end 13 of the spindle 9 and can be fixed by a locking screw 15. Ring-like projections from edge to edge of the slot 2 may be formed near its ends or one may be formed with the tip 4 in its gap, and standing proud of the ring or rings. Axial or other projections may be used. To relieve the pressure on the tip 4 and increase sensitivity, auxilliary springs may be fitted in axial grooves either side of the slot 2 to press a tungsten carbide segment in a groove diametrically opposite the tip against the bore to be gauged.
Patent GB-1524505-A (GB)
Title: Method and apparatus for aircraft pitch trim
IPC: B64C13/30
Filed: 1977-02-07
Abstract: 1524505 Controlling aircraft BALL BROS RESEARCH CORP 7 Feb 1977 [11 March 1976] 04861/77 Heading B7G The range and symmetry of travel between an elevator 19 and horizontal stabilizer 12 is maintained so as to provide pitch trim and pitch control of an aircraft by aligning a push tube 28, linked to a control input 32, with the stabilizer pivot point 15 in the neutral position of the stabilizer and elevator, push tubes 28 being connected via bellcrank lever 25, pivoted at 26 to the stabilizer, push tube 23 and control horn 21 to the elevator 19.
Patent GB-1094189-A (GB)
Title: Document conveyor
IPC: G03B27/62
Filed: 1964-12-22
Abstract: 1,094,189. Sheet feeding apparatus; sheet delivering apparatus. RANK XEROX Ltd. Dec. 22, 1964 [Jan. 2, 1964], No. 5011/67. Divided out of 1,094,188. Headings B6B and B6H. Documents to be copied are fed to a scanning station 20 and delivered from the scanning station using a conveyer system comprising a series of spaced, endless belts 18 passed over a drive roller 24, guide rollers 26, 38 and a tensioning roller and a set of guide discs 30 mounted on transverse shafts 32 which are adapted for floatation in slots 71 of side frames 35, 36 to press the documents into contact with the conveyer belts by the weight of the guide disc assemblies. To prevent curling up of flimsy documents the discs 30 on alternate shafts are staggered and the shafts 32 are spaced closely together so that the projected circles of the discs intersect one another. Documents are discharged either at the delivery or infeed end of the conveyer system, by means of a switch plate 75, which for thick documents is raised upwardly to discharge the documents over s shelf 78 and for flimsy documents is lowered to form a continuous surface with a guide plate 76 so as to discharge the documents at the infeed end.
Patent GB-620120-A (GB)
Title: Improvements relating to the casting of metals
IPC: B22C9/04
Filed: 1945-02-28
Abstract: Blades for gas turbines are cast by the "lost wax process" from nickel alloy containing chromium 20, iron 3, titanium 2.3, silicon 0.8, copper 0.1, aluminium 0.5, and carbon 0.05 per cent.ALSO:A sillimanite mould for casting metals by the "lost-wax" process has its cavity lined with fused alumina or magnesia.  Nine ozs. of this may be mixed with 90 ccs. of soap solution and 15 ccs. of sodium silicate and be applied to the wax pattern by spraying.  In another example only 10 ccs. of sodium silicate is used and in a third 30 ccs. with only 70 ccs. of soap solution. The coated pattern is invested by immersing it with a suspension of sillimanite sand in a bonding solution, allowing the sand to settle around the pattern, draining off the liquid, and drying. The sand may comprise 25 lbs of sillimanite sand with 1, 2, or 6 gms of magnesium oxide, and the bonding solution 560 ccs. of condensed tetraethyl silicate, 112 ccs. of 0.5 per cent hydrochloric acid, and 1575 ccs. alcohol.  The mould is finally dried.  The specification states that in the previously known method, the wax pattern was sprayed with a mixture of flint and sodium silicate and invested in a suspension of silica, condensed tetraethyl silicate and alcohol or sprayed and invested with sillimanite sand, condensed tetrethyl silicate and alcohol.
Patent GB-1532981-A (GB)
Title: Process for preparing olefinic compounds
IPC: B01J23/00
Filed: 1975-02-06
Abstract: Compounds of the formula I are obtained when either a cyclic olefin which contains in its ring at least one bivalent chain of the formula -CH2-CH=C(R)-CH2 or an aliphatic olefin which contains an end group of the formula R3-CH=CH-CH2 and a group of the formula R3-CH=C(R)-CH2 is reacted with an isoolefin of the formula III in the presence of an olefin disproportionation catalyst. The symbols used in the formulae are defined in Claim 1. <IMAGE>
Patent GB-1409651-A (GB)
Title: Speedreducing drive mechanisms
IPC: F16H1/46
Filed: 1974-02-04
Abstract: 1409651 Band saws AMADA CO Ltd 4 Feb 1974 05140/74 Heading B5L [Also in Division F2] A drive mechanism for a bandsaw pulley 5 comprises an input shaft 69 carrying a sun gear 81, stepped planet gears 83, 85, a fixed annulus 105 around which the planet gears 85 are adapted to walk, and an annulus 61 secured to the hub of the pulley 5 and driven by the planet gears 83 which also mesh the sun gear 81. An endless bandsaw blade 9 passes around the pulley 5 and a pulley 7 which are carried by a frame 3 which is pivotally mounted on a hinge pin 13.
Patent GB-470968-A (GB)
Title: Improvements in hair waving apparatus
IPC: A45D4/16
Filed: 1936-02-20
Abstract: 470,968. Hair - curling appliances. CALVETE, 1. B. Feb. 20, 1936, Nos. 5155 and 24753. [Class 131] A holder for pre-heated heating elements for use in permanent waving is applied to the heating element by an endwise movement whereby the heating element is engaged and held within the holder so that it can be transferred from the heater to the tress and vice versa and readily released. As shown in connection with root-to-point curling, Fig. 1, a tubular heating element b of aluminium or aluminium alloy is formed massive at its lower end and is held within a heat insulating holder a by the engagement of a spring d under a lip b<1>. The holder has arms g integral with rods g<1> pivoted at g<2>, g4 and operated by lugs g<5> to enclose a circumferential groove f<3> in a clamp, Fig. 5b. Alternatively, holding arms may be provided at the bottom to engage the clamp and separate arms at the top to hold the curler rod. An incomplete wire ring h<1> with inwardly protruding curved parts maintains the heating element centrally within the holder. On transfer of a cooled heating element to a heater, the knob d<3> on the spring d is drawn outwardly so that the heating element can be released from the holder. As applied to Croquignole waving, the holder, Figs. 6, 7, is in two parts j<1>, j<2> hinged together at j<4> and maintained closed by a spring j<8>. The heating element also comprises two hinged elements i<1>, i<2>, the pivot of which is in line with the pivot of the holder elements. The heating element slides within the holder on guides k secured as shown within recesses j<5> in the holder, or on guides m, Fig. 13, which space the heating element away from the inner walls of the holder, and a spring similar to that described in connection with the first embodiment retains the heating element within the holder. If the material of the holder is not heat-resistant, a liner of such material may be provided. The heaters for the heating elements comprise a number of tubular supports or long metal tubes containing heating resistances housed within a cabinet which also contains a step-down transformer or rheostat and a voltmeter calibrated in temperatures. A timing mechanism also may be provided, giving visual or audible signals at the termination of a determined period of heating. One of the Provisional Specifications describes a form of timing apparatus comprising a clockwork mechanism wound by a handle actuating the control switch for the heaters, the extent of movement of the handle being determined for a required duration of heating. Signalling mechanism is also set during this operation comprising, for example, a disc with red and green transparent panels which are exposed during the period of heating and at the end of the period respectively.
Patent GB-1011953-A (GB)
Title: Improved conveyor track
Inventor: MARSHALL WALTER THOMAS FREER
IPC: B65G21/22
Filed: 1963-02-08
Abstract: 1,011,953. Chain conveyers. BAGSHAWE & CO. Ltd. Oct. 14, 1963 [Feb. 8, 1963], No. 5161/63. Heading B8A. A guide track for a conveyer chain consists of a pair of Z-section beams 11 with parallel vertical webs 12, inwardly extending lower flanges 13 sufficiently spaced apart to form a slot through which hangers 21 carried by the chain may project, and outwardly extending upper webs 14 which are bolted to spacers 15. Specification 1,011,954 is referred to.
Patent GB-291148-A (GB)
Title: Improvements in or relating to rotary vacuum filters and like machines
IPC: B01D33/067
Filed: 1927-02-24
Abstract: 291,148. Brinjes & Goodwin, Ltd., and Titterton, F. Feb. 24, 1927. Rotary filters.-The filter cloth of a rotary drum filter is in sections which are separately fixed on the drum. Perforated reinforcements of wood or metal may be provided on either side of the cloth. A wooden drum 1, Fig. 1, is formed with grooves 6. Each filter cloth section 2 is held in place by a perforated plate 4, the ends of the section being clamped in recesses 8 by bars 10, 11, which are fixed to the drum by screws. The heads of these screws hold the plates 4 in position. In the arrangement shown in Fig. 3, the ends of the plates 4 are bent to enter the recess and the bent ends with their respective cloths overlap one another and are fixed by a single bar 18. Cloth segments 22, Fig. 5, are supported on inverted perforated channel elements or trays 26, the ends of each cloth segment being lapped round the flanges of the corresponding element, and fixed by wedging with the adjacent element. The :inner faces of the trays may be covered by perforated sheets of metal or of textile or other porous material. The Provisional Specification describes apparatus in which the drum itself is formed of hollow sections the outer faces of which are perforated.
Patent GB-914112-A (GB)
Title: Device for the removal of gas or smoke from electric furnaces
IPC: F27D17/00
Filed: 1961-02-13
Abstract: 914,112. Removing smoke generated in industrial processes. GES. DER: L. VON ROLL'SCHEN EISENWERKE A.G. Feb. 13, 1961 [Feb. 17, 1960], No. 5309/61. Class 8(2). A device for the removal of gas or smoke from electric furnaces comprises an annular housing 4 surrounding an electrode (not shown) and having an annular flow channel 18 in the interior thereof, the channel 18 receiving the gas or smoke through a suction slot 10 in the housing and being in communication with an exhaust system 7 through a conduit 5. The cross-section of the channel 18 increases in the direction of gas or smoke flow to achieve uniform velocity of the latter. The housing 4 may be provided with vibrators and may be formed from semi-circular halves. If the housing is made of magnetic materials an insulating layer is incorporated therein preferably at the point of the smallest cross.section of the channel 18; the layer may be formed as a sheet dividing the channel 18 into halves. A cooling medium may be circulated through an annular cooling compartment formed at 19 in the housing 4. The pressure on the gap formed between the electrode and the housing 4 is measured preferably by a pressure probe so that the gas or smoke removal may be automatically controlled to ensure that gas or smoke does not flow from or air enter into the furnace through the airgap. Alternatively, a sealing ring may be provided. When the furnace has a plurality of electrodes each of the latter is preferably provided with a gas or a smoke removal device connected to its own exhaust system.
Patent GB-797852-A (GB)
Title: Method and device for drying sand moulds by means of transportable electric mould driers
IPC: B22C9/12
Filed: 1956-02-22
Abstract: 797,852. Drying moulds. AKT.-GES. BROWN, BOVERI & CIE. Feb. 22, 1956 [Feb. 22, 1955], No. 5463/56. Drawings to Specification. Class 83 (1). [Also in Group XIII] Sand-moulds are dried by a transportable electric heater, which first forces through the mould, air which has been heated electrically, and then heats the mould on the surface by a fuel-burner with a temperature of between 700‹ and 800‹ C.