baber/WOPTO huggingface dataset:
Patent GB-1254490-A (GB)
Title: Self-propelled truck
IPC: B64F1/32
Filed: 1969-10-08
Abstract: 1,254,490. Motor vehicles. NORD-AVIATION SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES. 8 Oct., 1969 [8 Oct., 1968], No. 49405/69. Heading B7H. [Also in Division B8] A self-propelled truck comprises a plurality of articulated sections (Fig. 10) two pairs of steering and driving wheels Cr1, Cr2 below front and rear sections respectively, a control cabin 124 for controlling steering and driving movements of the wheels, and further undriven wheels, the wheels being pivotable about vertical axes. The vehicle, particularly for handling airmail freight or passenger traffic, includes four elements 1 to 4 articulated together. Elements 2 to 4 have pivoted rollers 22 and retractable guides 24 for load-handling, while element 1 may include a plate 14 inclinable relative to a chassis 11 to permit the plate to adopt the height of a loading or unloading base. The wheels Cr1, Cr2 are steerable through an arrangement (Fig. 16) which includes a servomotor 34 and worm screws 30, 31. A finger 49 rotatable with wheel pair Cr1 forms part of a safety device incorporating switches 46a, 46b to prevent selection of unsafe drive modes when the wheels are on full lock. The drive to wheel pairs Cr1, Cr2 is via a torque converter 39 (Fig. 17) two-speed gearbox 40 and reversing gear 37, a further reversing gear 36 being disposed in the drive shaft to the wheel pair Cr2. Each reversing gear comprises an electromagnetic clutch 38 for direct drive (D) or a gear train e1 to e5 for reverse or indirect drive (I). Vehicle element 1 comprises a cabin 124 including a control panel (Fig. 18, not shown) for selecting the drive modes. In any given drive mode the speed of the gear-box 40 and drive condition of each reversing gear is in accordance with a desired vehicle directional motion. For example, for movement along the vehicle longitudinal axis the wheels are set in the "straight ahead" position (Fig. 15, not shown) and in this position normal forward running (reversing gear 36 set to "D", reversing gear 37 set to "D") at normal or slow speed is possible by depression of respective control buttons (51, 52). In the same position of the wheels, reverse slow running (gear 36 set to "D", gear 37 set to "I") is provided by another button (53). Other drive modes are lateral (left or right) or rotational about a centre internally of the vehicle (Fig. 13, not shown) or externally of the vehicle (Fig. 14, not shown). It is stated that the mechanical transmission may be replaced by an hydraulic, electrical or electrichydraulic means. The plate 14 may be replaced by an elevator.
Patent GB-1281908-A (GB)
Title: A work control device for controlling work output of fluid driven apparatus
IPC: F15B21/00
Filed: 1969-10-08
Abstract: 1281908 Screwing up nuts &c. ARO CORP 8 Oct 1969 [9 Oct 1968 28 Aug 1969] 49414/69 Heading B3N A device for controlling a fluid operated machine tool utilizes pressure drop or pressure differential to shut-off a control valve and thus stop fluid flow and thus the machine tool. The device has adjustment means to control the time taken for the pressure drop or differential to operate the control valve so that the work produced by the machine tool can be preset. Fig. 9 shows an impact wrench 110 connected to a device 115 to which fluid is supplied by a line 116. A valve 122 controls fluid flow to the wrench dependant on a control signal provided through line 124. Pressure drop across a restrictor 118 is sensed by a start senser 125 which is normally closed but when opened allows fluid to flow along line 138. An impact sensor 140 is also normally closed but when opened allows fluid flow along line 148. During initial operation of the wrench, sensors 126 and 140 are opened so that the pressures on either side of a diaphragm 152 of inhibitor valve 150 are equal. When the wrench starts impacting, sensor 140 is closed and thus valve 150 is opened allowing fluid to flow through lines 154, 180 and 124 to close valve 122 and thus shut-off the wrench 110. If trigger 112 is kept operated the fluid in the device will exhaust through restrictors 166 and 178 until valve 122 is opened and a new impact cycle starts. The time taken to close valve 122 can be adjusted by changing the loading of springs 132 and 139 in sensor valves 126 and 140 and/or by changing the volume of reservoirs 162 and 182. The exhausting process can be controlled by timers 156 and 160.
Patent GB-1318598-A (GB)
Title: Process for the production of saturated monocyclic monoterpenes
IPC: C07C13/18
Filed: 1970-10-19
Abstract: 1318598 Saturated monocyclic terpenes CHEMISCHE WERKE HULS AG 19 Oct 1970 [20 Oct 1969] 49528/70 Heading C5E A saturated monocyclic terpene is prepared by hydrogenating an ether of a monocyclic terpene at superatmospheric pressure and elevated temperature in the presence of a catalyst which in the unreduced condition contains: 10-60 wt. per cent Ni, 10-87À3 wt. per cent calcined Al 2 O 3 , 0-40 wt. per cent ZnO and 0-5 wt. per cent SiO 2 . Preferably the feedstock is eucalyptol, which may also contain unsaturated monocyclic terpenes such as limonenes, dipentene, α-terpininene, and terpinols; the product being p-menthane. Up to 80 wt. per cent of a conventional nickel impregnation catalyst may be employed with the Ni-Al 2 O 3  catalyst. The reaction may be effected at 100-300 C. and 50-350 atmos. gauge.
Patent GB-1577599-A (GB)
Title: Method of and apparatus for the torque and smoke-emission properties of turbocharged diesel-engines
IPC: F02B37/00
Filed: 1977-11-29
Abstract: In an internal combustion engine a control valve (14) is arranged in the fresh air line (3) between the turbocompressor (5) of the turbocharger (11) and the intake opening of the cylinder. A turbocharger (11), the air delivery of which is equal to the fresh air demand of the engine (1) when the engine (1) is at full load and at half the rated speed of the engine (1), is adjusted to the engine (1). Within the said range of revolutions a pressure ratio defined by the admissible maximum combustion peak pressure can be observed, the amount of air delivered when the engine is at the rated speed exceeding the fresh air demand of the engine by up to 10%. The excess air delivered by the turbocompressor (5) is released by way of the automatic control valve (14) adjusted to the permissible maximum overcharging pressure. In order to achieve a uniform torque curve, tuned intake pressure charging is applied in the fresh air system, which charging is matched to that engine speed range in which the maximum combustion peak pressure could not be attained without the use of tuned intake pressure charging. <IMAGE>
Patent GB-1521756-A (GB)
Title: Screw extruders
IPC: B29C48/07
Filed: 1975-12-04
Abstract: 1521756 Clamping die plates to pivotally separable die head parts H U BREDEMEYER [trading as PAUL TROESTER MASCHINENFABRIK] 4 Dec 1975 [5 Dee 1974] 49752/75 Heading B5A An extruder die head, e.g. for extruding tyre tread bands, comprises a pair of parts 3 which are each attached to the extruder barrel 1 at a pivot 14, permitting pivoted separation of the parts 3 for cleaning and withdrawing the extruder screw therebetween, with each part 3 having a replaceable die plate 4 which is clamped against its downstream face by a force which does not have a component perpendicular to the direction of extrusion so that deformation of the die opening is avoided. The force is provided by a hydraulic piston-cylinder motor 10, acting through a lever means 6 which may be pivotable about the pivot 14 or, as shown, comprise a pair of levers pivotable about a pivot 7 carried between a pair of extension brackets 8 of the head and with the free ends of the levers engaging the plate 4. The cylinder of each motor 10 is pivotally attached at 12 to the extruder barrel 1, with the piston pivotably attached at 11 between the pair of levers 6. Continued movement of each piston beyond a position releasing the die plate, serves to displace each die part 3 to its open position by the levers 6 either engaging the jaws of a hook attached to each die part, or by abutment with a stop 9, carried by each bracket 8. The die head parts 3 are clamped together in their closed position, by pivoting clamps (17), Fig. 2 (not shown), acting with a wedge action, in the axial direction of the screw 2, by means of respective piston and cylinder arrangements which may comprise the motors 10.
Patent GB-1401281-A (GB)
Title: Security system or key member for use as such
IPC: G07F7/08
Filed: 1971-10-27
Abstract: 1401281 Electronic security devices R C A CORPORATION 25 Oct 1972 [27 Oct 1971] 49930/71 Heading E2A A key 60 for use in an electronic security system has a memory capable of assuming any one of a plurality of states so that a predetermined output signal is provided in response to an applied input signal. The key 60 has one or more (three shown) such memories 54, 56, 58 each having three terminals. Each memory is an adaptive ferroelectric transformer 36 comprising a coupled pair of ceramic lead-zirconate/lead titanate capacitors 38, 40 formed of ferroelectric material 42, 44 sandwiched between respective metallic outer plates 46, 48 and a common intermediate plate 50 each having a terminal. The material 42, 44 is polarized by a pulse charging unit, the degree of polarization depending on the length and magnitude of the pulse. When the key 60 is engaged in a security control signal generator 62, Fig. 5, input terminals of the memories 54, 56, 58 receive an A.C. signal from an oscillator 28 and produce output signals at terminals 2 which depend on the signal and on the degree of polarization. The generator 62 has respective matching memories 54', 56', 58' the signals from corresponding key and generator memories being fed to respective comparators 54", 56", 58" the outputs of which are then fed to a AND gate, an amplifier 66 and an electro mechanical transducer 68 which operates a latching mechanism 72, 74, 78. If the key 60 is lost the pulse charging unit is coupled to a new identical key 60 and then generator 62 to polarize the memories to new states to effectively change the code. The charging unit comprises a controlled variable D.C. supply connected to the memories by a double throw, double pole switch; the length of time the switch connects the supply to the devices is also controlled to provide the predetermined pulse. To economise on power, proximity or insertion of the key 60 switches on the supply to the generator 62.
Patent GB-1210239-A (GB)
Title: Improvements in or relating to resin-coated granular refractory material
Inventor: LEMON PETER HERBERT RICHARD BR
IPC: B22C1/22
Filed: 1967-11-03
Abstract: 1,210,239. Foundry moulding composition containing a Novolak and resole resin. BORDEN CHEMICAL CO. (U.K.) Ltd. 23 Oct., 1968 [3 Nov., 1967], No. 50199/67. Heading C3N. A foundry moulding composition comprises a granular refractory material, the particles of which are coated with a composition which has a pH less than 5.5 (measured in I.M.S.), is substantially nitrogen-free and comprises a Novolak and a resole. The Novolak may be prepared from phenol, m-cresol, 3,5-xylenol or resorcinol and 0À5-0À88 moles per mole of phenol, of aqueous formaldehyde solution in the presence of HC1, H 2 SO 4 , H 3 PO 4  or (COOH) 2  as catalyst. The resole may be prepared from phenol m-cresol or 3,5-xylenol and 1À6-2À8 moles per mole of phenol of aqueous formaldehyde solution in the presence of NaOH or Ca(OH) 2  as catalyst. In examples, a stainless steel reactor is used for this step. The refractory material may be silica sand, quartz, olivine or zirconia. In one procedure the Novolak and resole are added to heated refractory material and mixing is continued until the refractory material is cool, 1-2% of water optionally being added to accelerate cooling. In an alternative procedure the Novolak, containing acid curing catalyst, and the resole are added to separate batches of sand which are subsequently mixed. The moulding composition may also include a wax, mill scale and rosin, and a material such as Ca 2 SiO 4 , silica gel, CaSO 4  or CuSO 4  to absorb water during storage. The pH adjuster may be salicylic acid.
Patent GB-1494379-A (GB)
Title: Wooden sleeper particularly suitable for railway track
IPC: E01B3/04
Filed: 1975-12-09
Abstract: 1494379 Wooden railway sleepers AKA DEMIA ROLNICZA 9 Dec 1975 [17 Dec 1974] 50343/75 Heading E1G A wooden railway sleeper 1 is provided in each rail-mounting zone thereof with at least one insert 2 of material harder than the wood of the sleeper and improving the compressive strength of the sleeper in places where anticipated loads may exceed the strength of the wood. The insert may be made of hard wood, wood impregnated with plastics material or plastics material. The insert is wedge shaped in cross-section and is fitted in a complementarily-shaped groove or recess in the sleeper running transversely to the longitudinal centre line of the sleeper in order to redirect pressure applied from above from perpendicular to diagonal or parallel relative to the wood grains in the sleeper. In order to prevent lengthwise cracking of the sleeper, the crosssectional dimensions of the wedge-shaped insert may be greater at its ends than in its middle portion, both widthwise and depthwise as shown in Figs. 7-9.
Patent GB-1382077-A (GB)
Title: Combustion-inhibiting compositions
IPC: F02K9/24
Filed: 1972-11-01
Abstract: 1382077 Injection moulding SOC NATIONALE DES POUDRES ET EXPLOSIFS 1 Nov 1972 [25 Nov 1971] 50387/72 Heading B5A [Also in Divisions C3 B2 and F3] A block of propellant powder is treated to inhibit combustion thereof by coating at least part of the surface of the block with a primer, and then forming on the primed surface by injection moulding under a pressure of 2-30 bars, a layer of an inhibitor composition comprising a silicone elastomer, a curing catalyst and optionally, a mineral filler, the composition having, prior to moulding, a viscosity of 1000-2000 poises. Suitable fillers include glass flakes and balls, graphite, silica fibres, asbestos wool and powder. In the example a block of propellant powder consisting of, for example, a mixture of nitrocellulose and nitroglycerine powders, or a nitrocellulose-based powder is first coated with a primer consisting of methanol, toluene and a silane and then a layer of inhibitor varnish consisting of a RTV silicone elastomer 90 pbw, glass flakes 10 pbw and dibutyl dilaurate 0À95 pbw as curing catalyst is moulded around the primed surface using, for example, a moulding device, as shown in the drawing. The device comprises an injection pump consisting of a primary pump 1 and a secondary pump 2 containing the inhibitor varnish. A fluid under pressure admitted through tube 5 acts on lower piston 3 which transmits the pressure to the varnish via a differential piston 4 and causes the varnish to enter the space between the block of propellant 7 and mould 8 via injection nozzles 6, the mould consisting of 2 half-shells. Injection may be effected under vacuum and the mould may be transparent. The block 7 may be held in position by a plastic centering screw 7 and a centering ring 10.
Patent GB-1497697-A (GB)
Title: Dielectric composition and electric current regulating junctions
IPC: G11C16/02
Filed: 1975-12-09
Abstract: 1497697 Electrical coupling EI DU PONT DE NEMOURS & CO 9 Dec 1975 [12 Dec 1974 (2)] 50407/75 Addition to 1440830 Heading H2E [Also in Divisions C3 and H1] The disclosure is similar to that in the parent Specification, differing in the following respects. (1) The invention relates to compositions wherein the metal particles constitute at least 10% and less than 40% by volume, the balance being binder. (2) A D.C. current pulse of magnitude related to layer thickness and of one microsecond to one millisecond duration may be used to activate the junction. (3) Polyvinyl alcohol and acetate are included as further examples of binder material. (4) The metal particle size range is 0À01 to 250 microns.
Patent GB-1195019-A (GB)
Title: Adhesive Fabric.
Inventor: BATES HAROLD
IPC: B32B5/08
Filed: 1966-11-14
Abstract: 1,195,019. Laminated fabrics. COURTAULDS Ltd. 6 Oct., 1967 [14 Nov., 1966], No. 50843/66. Heading B5N. A fabric carries, on at least one surface, adherent filaments of a nylon copolymer having a melting point in the range 110-160‹ C. The preferred nylon copolymers are 6/66 and 6/66/610 and these are mixed with plasticizers such as sulphonamides, and extruded as filaments on to a moving web of, say, cotton fabric. This may be moved at a speed corresponding to that of the extruded filaments, in which case the filaments are taken up on the fabric in continuous parallel lines, or at a lower speed, in which case the filaments overlap one another to form a random web. The fabric is then passed beneath infrared heaters so that the filaments are fused to it, in which case a further piece of cloth may subsequently be laid upon the treated fabric and caused to adhere by heat and pressure. Alternatively, a further piece of cloth, e.g. of wool, may be passed between heated rollers with the fabric carrying the filaments so that the latter are caused to adhere to both pieces of cloth simultaneously.
Patent GB-1277169-A (GB)
Title: Apparatus and method for the moulding of concrete
IPC: E04G11/28
Filed: 1970-10-27
Abstract: 1277169 Shuttering for casting concrete G K N MILLS (PTY) Ltd 27 Oct 1970 [31 Oct 1969] 51083/70 Heading E1S Vertically movable shuttering for a wall comprises two strongbacks 12, 14 carrying shuttering panels 16 and defining a cavity therebetween, and lifting means, e.g. a winch 20, mounted on one strongback 12 and having a lifting element thereof, e.g. a cable 24, connected to the other strongback 14; in operation, concrete is poured into the cavity to form a lower section of the wall 18, the strongback 14 is disconnected from the cast lower section, the lifting means is driven in the forward direction to lift strongback 14 to a new position where it is anchored on the cast lower section (Fig. 2, not shown), the strongback 12 is disconnected from the lower section, and the lifting means is driven in the reverse direction to lift strongback 12 to a new position defining a cavity with strongback 14 (Fig. 3, not shown) and anchored ready to receive poured concrete forming an upper section of the wall. Portions of the cable 24 extend from the winch 20 around sheaves 26, 30, 32 to anchoring points on strongback 14 to effect such movement. Tie-bolts 44 and inserts 46 are cast in the wall and are used for anchoring the strongbacks to by means of bolts and jacks 42.1, 42.2. The lifting means may instead comprise a chain and sprockets, a rack and pinion, or a double-acting fluidoperated ram.
Patent GB-1428718-A (GB)
Title: Supporting of engines
IPC: E21F15/06
Filed: 1973-11-07
Abstract: 1428718 Supporting engines FMC CORP 7 Nov 1973 [7 Dec 1972] 51570/73 Heading B7H An engine supporting system comprises a plurality of resilient elements between the engine and the chassis. As shown in Fig. 1, an air cooled gasoline powered engine 12 has four feet 28 rigidly mounting the engine to two bed plates 30. Two front mounting arms 32, 34 connect the bed plate 30 at the front feet of the engine to chassis brackets 60, 61 via resilient mounts 52, each mount including a steel sleeve 54, Fig. 4, bonded to a resilient rubber section 56. An apertured mounting tab 58 is bonded to the resilient section 56 and is bolted to the respective chassis bracket 60, 61. The flexible mounts attached to the rear mounting arms 42, 44 are bolted directly to apertured portions of the chassis 66 by mounting tabs 58. The system locates the resilient elements of the engine mounts with respect to the forces imposed on the engine as a result of the weight force of the engine assembly, including the weight of the power take-off components such as the pulley 20 and the crank-shaft 14, and the exterior forces acting on the engine assembly due to its power output. The invention may also be applied to electric motors, turbines, and steam engines mountable on a chassis.
Patent GB-1154376-A (GB)
Title: Silicate Ester Compositions
Inventor: HALSEY GORDON
IPC: B22C1/20
Filed: 1965-12-07
Abstract: 1,154,376. Hydrolysed silicate compositions. MONSANTO CHEMICALS Ltd. 1 Nov., 1966 [7 Dec., 1965], No. 51828/65. Headings C3N and C3T. A binding agent comprises a hydrolysed organic silicate ester and a glycol soluble or miscible therein. In the glycol the hydroxyl groups are linked by a divalent hydrocarbon group. The ester may be an orthosilicate or a condensed silicate, i.e. a mixture of polysilicates ethyl silicate is exemplified. The glycol may be aliphatic, e.g. containing up to 4 C atoms, or aromatic. Ethylene glycol is preferred. A mixture of glycols may be used. The glycol may be present during a part or the whole of the hydrolysis, or it may be added subsequently. The ester may be hydrolysed with water the amount of which is preferably less than that usually employed to hydrolyse the ester in the absence of glycol. An acid catalyst, e.g. HCl or (COOH) 2 , may be used. Also present may be a water-soluble organic solvent, e.g. an alcohol e.g. ethanol or propan-2-ol or ketone. For producing a refractory article, e.g. a shell mould the binding agent is used in a slurry with a powdered refractory filler. The filler particles are usually greater than 10 Á and pass 200 mesh BSS. The filler may be: SiO 2 , e.g. powdered flint; Al 2 O 3 ; MgO; ZrO 2 ; SiC: aluminosilicates, e.g. molochite, sillimanite, or mullite; silicates e.g. zircon or forsterite; or calcined fireclay. A shell-mould may be coated with slurry by spraying or dipping, and the coating may then be covered with stucco particles of refractory. The coating is then gelled by exposure to the atmosphere or to a gelation accelerator, e.g. ammonia or an organic amine. The product is then dried or heated to convert the gel to silica.
Patent GB-1406010-A (GB)
Title: Electric cables
IPC: H01B11/00
Filed: 1973-11-08
Abstract: 1406010 Electric cables STANDARD TELEPHONES & CABLES Ltd 8 Nov 1973 51868/73 Heading H1A [Also in Division B5] A screened electrical cable includes a cable core 1 which comprises a plurality of insulated conductors and is filled with a water impervious jelly-like material such as petroleum jelly. A plastics layer 2 is extruded over the filled core 1, a metallic screening layer 3 is formed directly over the layer 2 and a plastics sheath 4 is extruded directly over the screening layer. Layer 2 and sheath 4 may be of polyethylene. The metallic screening layer 3 may be formed of a metallic tape such as aluminium tape wrapped longitudinally around the plastics layer 2 with its longitudinal edges overlapping. Alternatively the metallic screening layer 3 may be formed from a metal/plastics laminate.