baber/WOPTO huggingface dataset:
Patent GB-1227951-A (GB)
IPC: F16K31/42
Filed: 1967-01-26
Abstract: 1,227,951. Valves. JOSEPH LUCAS (INDUSTRIES) Ltd. 25 April, 1968 [26 Jan., 1967], No. 3939/67. Heading F2V. A valve for controlling fluid flow between lines 16 and 17 and exhaust 18, comprises a stepped bore 11 which encloses a multi-landed stationary sleeve 12, a spool 22 which is subjected to the bias of a spring 23 and is movable within the sleeve between two seats 39 and 42, and a spool position controlling arrangement comprising two fluid pressure lines 24 and 25, which open into the seats 39 and 42 respectively, and two solenoid operated valves 32 and 33 which serve to control the pressure within and around the two seats and hence to determine the movement and consequently the position of the spool. In the state of the valve shown, pressure from line 24 acts on the topmost end of the spool and so communication is established between lines 17 and 18 via grooves and passages 14, 20<SP>1</SP>, 20, 48, 21, 21<SP>1</SP> and 15. Upon energizing valve 32, communication is established between the region in and around seat 39 and an exhaust line 26, with the result that the pressure in line 25 causes the spool to move upwardly and into engagement with seat 39 so bringing lines 17 and 16 into communication with each other via grooves and passages 14, 20<SP>1</SP>, 20, 48, 19, 19<SP>1</SP> and 13. With the valve in this second state, any pressure left around seat 39 subsequent to deenergization of valve 32 is relieved via passages 45 and 47 to exhaust 18. Reversal of the valve to the state shown, can be effected by energizing valve 33 and so relieving pressure in and around seat 42 via passage 41, valve seat 35, chamber 27 and line 26, such relief of pressure enabling the pressure in line 24 to move the spool downwardly whereupon communication is again established between lines 17 and 18, residual pressure around seat 42, subsequent to deenergization of valve 33, being relieved via passages 46 and 47 to line 18.
Patent GB-1231087-A (GB)
IPC: D02G1/12
Filed: 1968-07-26
Abstract: 1,231,087. Film fibrillation. KLINGER MFG. CO. Ltd. 26 July, 1968 [9 Aug., 1967], No. 35714/68. Heading B5B. [Also in Division D1] A longitudinally orientated film is fed into a crimping zone, the film crimped so as to mechanically work and thereby fibrillate the film, and the film withdrawn. Orientation is suitably effected by drawing the film prior to crimping. The film may be crimped by advancing the crimp longitudinally into the crimping zone and applying a back pressure to the advancing film in said zone, the film being heated prior to performing the crimping step. The crimped film may then be heat set. The film may be partly fibrillated before feeding into the crimping zone (Fig. 2, not shown), and then further fibrillated by said crimping step (Fig. 3, not shown). The film may be of polypropylene, and may be fed to the crimping zone in the form of a bundle comprising a plurality of individual strips twisted together. Twisted film roughly 1/8th of an inch in diameter, ribbons 1 to 2 inches in width, and individual, small width ribbons may also be so treated. In the preferred method the strip film is drawn to orientate the molecules longitudinally, fed into a stuffer box crimping chamber so as to crimp and fibrillate the film, and the crimped fibrillated film withdrawn. In apparatus as shown, film 14 drawn from supply 16 is continuously drawn around two spaced rotating rollers 10, 12 at least one of which is heated, roller 10 suitably running at a peripheral speed of approximately 2¢ to 5 times slower than that of roller 12, so as to orientate the film, and the orientated heated film is passed from roller 12 through the nip of driven rollers 18 which are rotated at the same peripheral speed as roller 12 into a gripping zone 24 which is suitably a short gripping chamber of the stuffer box type, as in Specification 1,051,721. As the film passes into the gripping zone, a back pressure is applied thereto and the film accumulates in the form of a compressed mass. The crimped, fibrillated film leaves the crimping chamber and is heat set in a heated chamber in zone 25 while still in the compressed form as shown in relation to conventional yarn in Specification 1,051,721. The processed film may now be wound up or sent on for further processing to form a textile-type yarn (see Division D1).
Patent GB-1231326-A (GB)
IPC: C08K5/02
Filed: 1969-07-09
Abstract: 1,231,326. Self-extinguishing silicone rubbers. STAUFFER-WACKER SILICONE CORP. 9 July, 1969 [22 July, 1968], No. 34485/69. Heading C3T. A self-extinguishing elastomer-forming composition comprises (1) a curable organopolysiloxane, (2) a halogenated organic compound containing at least 35 wt. per cent halogen in amount providing 15-50 p.b.w. of halogen per 100 p.b.w. of polysiloxane, and (3) an oxide, halide, or oxyhalide of As, Sb or Bi. There is preferably also present (4) a curing agent and (5) a curing catalyst. Many suitable components (1) to (5) are listed. In general (1) may be a polydiorganosiloxane with hydroxy, acyloxy, aminoxy, oximo or phosphato end groups, (4) may be an acyloxy-, aminoxy-, oximo- or phosphato-silane or an organosilicate, and (5) a metal carboxylate or organotin compound. Fillers e.g. various silicas, TiO 2  and lithopone may be added. In examples components (2) and (3) are added with dibutyltin butoxy chloride to a mixture of a hydroxy-terminated polydimethylsiloxane of 2000 cs./25‹ C. with alumina trihydrate, distomaceous earth and ethyl polysilicate, (2) being perchloropentacyclodecane, a chlorinated paraffin, chlorinated hexamethylbenzene, heptachlorocyclohexane, or tetrachloro - p - xylene dichloride and (3) being antimony silico oxide, SbCl 3 , Bi 2 O 3  or As 2 O 3 ; in Example 10 methyl triacetoxysilane and dibutyltin diacetate, as (4) and (5), are added last.
Patent GB-1238107-A (GB)
IPC: H01B9/02
Filed: 1969-09-08
Abstract: 1,238,107. Electric cable. KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE A.G. 8 Sept., 1969 [11 Sept., 1968], No. 44215/69. Heading H1A. The insulation 3 surrounding the centre conductor 1 of a high tension cable, is surrounded by a radiation shielding 4 of a deformable conductive material which has over the whole surface of the cable, a wrapped metal screen 5, composed of conductive wires 6 partially embedded in the shielding 4 and which are applied with a reversing lay. The radiation shielding may be an extended layer of a conductive thermoplastic or elastomer, or it may be a semiconductive tape applied spirally or longitudinally. A further layer (8) of conductive or other material may be applied over the metal wrapped screen 5, and a plastics sheath (9) formed over the whole assembly.
Patent GB-1239050-A (GB)
IPC: B65G23/14
Filed: 1968-12-31
Abstract: 1,239,050. Driving overhead endless chain conveyers. HYTRAC CONVEYORS Ltd. 22 Dec., 1969 [31 Dec., 1968], No. 61853/68. Heading B8A. In conveyer systems of the kind including a linear travelling conveyer element 1 having a plurality of load carriers 4 mounted thereon, the element 1 is driven by a drive unit comprising a pair of elongate driving chains 26 carrying drive dogs 32 for engagement with the conveyer element 1, each driving chain 26 being arranged in parallel planes on opposite sides of the conveyer element 1 to travel in a path, part of which runs alongside the conveyer element in substantially the same plane as the latter, and the arrangement being such that the drive dogs engage the conveyer element during their passage along this portion of the path. As shown, each drive dog 32 acts on a connecting bush 8 of alternate links 6 of the conveyer chain 1, dogs 32 are connected to the chains 26 by a bridging member 30. A similar bridging member 33 carries an abutment 34 for engaging the rear end of the link 6 to prevent the latter riding up under the action of the respective drive dog 32.
Patent GB-1256472-A (GB)
IPC: C08F236/16
Filed: 1970-07-02
Abstract: 1,256,472. Vinyldimethylorganosilanes and carbochain rubbers based thereon. INSTITUT NEFTEKHIMICHESKOGO SINTEZA IMENI AVTOPCHIEVA AKADEMII NAUK SSSR. 2 July, 1970 [3 July, 1969], No. 32128/70. Headings C3P and C3S. Novel vinyldimethylorganosilanes of the formula wherein R represents aralkyl or C 5-10  straight or branched-chain alkyl, are prepared either by reacting a vinylhalodimethylsilane with a Grignard reagent RMgBr, or by reacting a vinyltrihalosilane with a Grignard reagent RMgBr to provide an intermediate vinyldihalomonoorganosilane which is subsequently reacted with methyl-magnesium bromide. The above silanes may be polymerized alone or in admixture with conjugated dienes such as isoprene or butadiene using anionic initiators such as lithium or lithium alkyls to give low density biologically compatible rubber-like materials having a degree of polymerization ranging from 500 to 5000 and containing units of the formula Uses.-As endoprosthetics.
Patent GB-1258083-A (GB)
IPC: G03B27/62
Filed: 1969-01-23
Abstract: 1,258,083. Feeding webs. GAF CORP. 23 Jan., 1969 [26 Jan., 1968], No. 3919/69. Heading B8R. A receptacle 10 for guiding a continuous web of original paper to a photocopy reproduction apparatus 12 is adapted to be invertibly mountable on the apparatus 12; when mounted in a first position as shown the tray 10 comprises a generally trough shaped portion 28 for receiving a roll W of the paper web, and a first guide surface 16 for guiding the web into the apparatus 12. The receptacle 10 is provided with two flanges 56, 58 and in the first position the flange 56 is received in a narrow gap 52 defined by a supporting bracket 44 and a spacer 50 which are fixed to the apparatus 12. In the second, inverted, position of the receptacle 10, the flange 58 is received by the gap 52 so that the receptacle 10 then provides a second, extended, guide surface 22, 24 for the guiding to the apparatus 12 of originals of varying lengths (Fig. 2, not shown).
Patent GB-1264846-A (GB)
IPC: F25B23/00
Filed: 1969-05-06
Abstract: 1,264,846. Refrigerating; heating by circulation of fluid. THERMO ELECTRON CORP. 6 May, 1969 [4 Oct., 1968], No. 22999/69. Headings F4H and F4U. A space temperature control system includes a heat exchange coil 3 mounted in an air stream to be controlled, said air being supplied by fan 5, and a fluid processing unit connected to said coil 3 comprising a boiler 23, vapour engine 37 driving a compressor 19 and a high pressure feed pump 47, a low pressure feed pump 51 driven by an electric motor 49, and a solenoidoperated four-way valve 13, a first fluid circuit being completed through valve 13, engine 37, feed pump 47 with valve elements a and b in the position shown, a second fluid circuit with valve 13 in the same position being completed through coil 3 compressor 19 and condenser 31 working fluid cooling air from fan 5, and a third circuit being completed with valve 13 in a second position through coil 3, pump 51 and boiler 23, the latter supplying hot fluid which is condensed in coil 3 heating air from fan 5. There is a common charge of organic working fluid, e.g. CHClF 2  in the system, present as either liquid or vapour. The boiler 23 is disclosed in Specification 1,192,152 (see Divisions F3-F4). Coil 3 is connected to liquid line 7 by a conventional expansion valve V1 of the fixed orifice type in parallel with a check valve V2. -Compressor 19, engine 37, feed pump 47, motor 49 and low pressure feed pump 51 are hermetically sealed in a steel casing (53, Fig. 2). The combined vapour engine-compressor is disclosed in Specification 15324/70 (see Division F1) and its exhaust valve mechanism in Specification 1,264,845 (see Division F1). Operation.-Exhaust fluid from engine 37 is supplied by line 39 to a conventional regenerator 41 where it is used to heat boiler input liquid and exhaust fluid from said regenerator 41 is supplied by line 43 to condenser 31. When heat exchange coil 3 is operating as an evaporator for air cooling, part of the fluid from condenser 31 is returned to the boiler 23 through feed pump 47 and the other part to said coil through valve V1. When the temperature falls, a thermostatic control 15 causes valve 13 to take up its second position, i.e. to operate elements a and b to their upper positions connecting the boiler output directly to coil 3. The latter now serves as a condenser, heating air from the fan 5 and condensed effluent passes through -check valve V2, through line 7 and check valve V7 to the low pressure pump 51. This is driven by motor 49 with engine 37 not operating and liquid from said pump passes through regenerator 41, which is ineffective with engine 37 cut off, back to boiler 23.
Patent GB-1266069-A (GB)
IPC: C10G11/18
Filed: 1970-06-19
Abstract: 1,266,069. Fluidized catalytic cracking. GULF RESEARCH & DEVELOPMENT CO. 19 June, 1970 [25 June, 1969], No. 29781/70. Heading C5E. A gas oil feed is cracked to gasoline in the presence of a fluidized zeolite cracking catalyst in a reaction zone at 482-593 C. and a residence time of less than 5 seconds during which catalyst and hydrocarbon both flow concurrently through the zone so as to avoid formation of a catalyst bed in the reaction flow stream, there being introduced in the zone a diluent vapour which reduces the partial pressure of the feed, debutanized gasoline being recovered from the zone in increased yield. Suitable diluents are steam, N 2 , methane and ethylene.
Patent GB-1266691-A (GB)
IPC: D06F33/48
Filed: 1968-06-20
Abstract: 1,266,691. Control of D.C. motors. BRITISH DOMESTIC APPLIANCES Ltd. 20 June, 1969 [20 June, 1968], No. 29412/68. Heading H2J. [Also in Division G3] A horizontal clothes-drum is driven by a series motor 1 which is supplied from an A.C. source through thyristor 2, the drum being driven at high and low speeds, and accelerated slowly through a critical speed, at which the centrifugal force on the clothes equals the force of gravity, after which it is accelerated more rapidly until the higher speed is attained. The triggering circuit for the thyristor 2 comprises a transistor 13 which conducts when the charge on capacitor 12 reaches a predetermined value so turning-on a transistor 14, leading to a rapid saturation of both transistors and the production of a firing pulse. The charge on capacitor 12 is controlled by transistor 19 associated with tachometer generator 18 providing negative feedback, and a network 3, 20, 21, 46, which provides positive feedback in accordance with the motor current. The feedback circuits, and the value of a reference voltage from potentiometer P, are chosen to maintain the motor speed at a low value suitable for washing or rinsing. At the end of this period, a timer motor 6 starts a pump to remove free washing liquid from the drum and opens a switch 5 to discharge capacitor 24 through resistor 25. The current through transistor 11 increases slowly to increase the base voltage of transistor 19. This provides slow acceleration of the drum through the critical speed. As the transistor 11 becomes more conductive, transistor 27 starts to conduct and the base voltage of transistor 19 rises rapidly to a maximum. The motor is supplied with maximum power and rapidly accelerates the drum to the higher speed. The spinning operation is terminated by closing timer switch S to switch-off the transistor 19. A switch SS is closed when a shorter spinning time is required a capacitor 31 being charged until transistor 27 becomes conductive. As the capacitor 31 discharges, transistor 33 turns off to prevent the transistor 13 from firing and supplying triggering pulses to the thyristor 2. A switch 30 responds to the drum becoming out of balance and turns on transistor 34 which switches-off the transistors 11, 27, and thereby reduces the base voltage of transistor 19. This lowers the motor speed below the critical value. When the switch 30 opens, capacitor 52 starts to charge and transistor 34 is switched-off to effect controlled acceleration. If the main power supply is restored after failure, capacitor 24 causes transistor 11 to become slowly effective, so avoiding restarting of the motor at full power. Resistors having a negative temperature coefficient protect the motor from over-heating and provide temperature stability for the electronic circuit elements. A transistor 36 is associated with the transistor 19 to afford protection against excessive current. During the washing period motor 1 is periodically reversed by cam-operated switch 29.
Patent GB-1267012-A (GB)
IPC: H01S3/083
Filed: 1970-08-17
Abstract: 1,267,012. Lasers. BENDIX CORP. 17 Aug., 1970 [25 Aug., 1969], No. 39555/70. Heading HlC. A ring laser comprises a solid body 3, Fig. 1, of laser active material whose shape is such as to define a resonant cavity. The laser body in Fig. 1 is indicated in solid lines, while the beam path 4 is dashed. Two outputs 7 and 7A are taken through partially reflecting surface 23. Surfaces 15-22 are angled to refract the beams around the body, and are at the Brewster angle to the beams so that a linearly polarized output is obtained. The active material is preferably ruby, but an Nd glass or YAG may be used, the Brewster angle depending on the material selected. In the embodiment of Fig. 2, three reflecting surfaces 33, 38, 39 are used, the first two being at the critical angle, and there are also two surfaces 34, 36 at which refraction occurs. In both embodiments, the output surface (23 or 39) has a dielectric coating. A broadband pumping source such as a xenon lamp may be used.
Patent GB-1267241-A (GB)
IPC: D21D5/02
Filed: 1969-03-21
Abstract: 1,267,241. Screening apparatus. CANADIAN INGERSOLL-RAND CO. Ltd. 21 March, 1969 [16 April, 1968], No. 14976/69. Heading B1D. Outward flow through - screen 12 of pulp introduced at 8 is enhanced by a rotor drum 24: this drum has a plurality of circumferential band regions of two types, one type, e.g. 48, 56 consisting of depressions 50, 58 in the drum periphery, the other type, e.g. 52 consisting of protrusions 54. Details of the depressions/ protrusions configuration are given (Fig. 3, not shown). Screen 12 has an imperforate circumferential region 64 at the level of diluent inlet 68: this is stated to prevent the diluent interfering with the downward and outward flow of pulp. In other respects the apparatus is similar to that of Specification 1,112,700. Reference has been directed by the Comptroller to Specification 1,070,451.
Patent GB-1295689-A (GB)
IPC: H01M50/483
Filed: 1970-03-06
Abstract: 1295689 Electrical energy storage device STANDARD OIL CO 6 March 1970 [20 March 1969] 10832/70 Heading H1B An electrical energy storage device comprises a thin flexible-walled metallic container, a carbon cathode, preferably of activated carbon, with at least two Li or Li alloy anodes disposed on opposite sides thereof, and a separator disposed between the electrodes, a fused salt electrolyte in contact with the electrodes and contained in the separator, and means such as a metallic screen or cloth and fibres adjacent the anodes to prevent dendritic growth. The anodes may be arranged in groups of four and the Li alloys may be ternary Li alloys or In-Li, Sn-Li, Pb-Li, Ag-Li, Cu-Li, or most preferably Al-Li. The separator may be in the form of a fibre mat, felt or plate made from such refractory materials as BeO, ThO 2 , MgO, LiAlO 2 , BN, Si 3 N 4 , AlN or mixtures thereof. The fused salt electrolyte may be the binary salts LiCl-KCl, LiBr-KBr, LiF-RbF, LiCl-LiF, LiCl-SrCl 2 , CaCl 2 -LiCl, Li 2 SO 4 -KCl and mixtures thereof, or the ternary molten salts CaCl 2 -LiCl-KCl, LiCl-KCl-NaCl, CaCl 2 -LiCl-NaCl, CaCl 2 -LiCl- NaCl or LiBr-NaBr-LiCl. In the example, a carbon cathode composite containing a Te additive comprises a tungsten screen 20 and an elongated tungsten strip 22 between a pair of graphite current collectors 18 which are then cemented between a pair of carbon plates 16. The cathode is wrapped in a BN fibre mat 44 containing LiCl-KCl electrolyte, and is then placed in a stainless steel screen basket 46 and is then placed in stainless steel container 56. A set of four Al-Li anodes 10 is positioned on each side of the cathode. Braces 58 and lid 62 are welded on, as well as current collector rod 24. Fill tube 64 is secured to lid 62, which is finally welded shut after heating the cell to above the melting point of the electrolyte, evacuating, adding more electrolyte and then charging the cell.
Patent GB-1297155-A (GB)
IPC: F16J15/32
Filed: 1969-11-06
Abstract: 1297155 Sealing rings GREENE TWEED & CO Inc 6 Nor 1969 [17 June 1969] 54481/69 Headings F2B and F2T A sealing ring 12 for use between two relatively movable members, e.g. a housing and a rod, has a sealing contact edge 26, 38 on each of its inner and outer peripheries and a U-shaped groove 14 in one end face, the limbs 16, 18 of the U being of unequal length and the edges being located such that a radial plane through one edge 38 passes through only one limb 18 of the U and a radial plane through the other edge 26 either passes adjacent but does not intersect the groove or intersects the groove at a point such that the radix of the groove lies inwardly of such plane by no more than 10% of the overall axial dimension of the ring. The invention may be applied to a piston ring. The sealing ring may be carboxylated Buna N or polyurethane.
Patent GB-1297727-A (GB)
IPC: B65G7/00
Filed: 1971-05-28
Abstract: 1297727 Fluid bearings KORNYLAK CORP 28 May 1971 [16 July 1970] 17830/71 Heading F2A [Also in Division B8] An air flotation table comprises a chamber bounded by upper, lower and peripheral walls 2, 4, 8, a rigid porous open celled material, e.g. polyurethane foam, filling the chamber, a pipe 11 for admitting pressurized air into said chamber and spring urged ball valves V inserted into the upper wall 12 for engagement with an article to exhaust air from the chamber, when so engaged, to form an article supporting air cushion.
Patent GB-1307634-A (GB)
Title: Fuel injection device for a gas turbine engine
IPC: F23R3/10
Filed: 1970-07-23
Abstract: 1307634 Fuel injector for a gas turbine engine DEFENCE SECRETARY OF STATE FOR 23 July 1971 [23 July 1970] 35763/70 Heading F4T A fuel injector for a gas turbine engine comprises a Venturi 15 which receives a portion of the engine airflow, swirl vanes 18 mounted in the upstream section of the Venturi to impart swirl about the Venturi axis to that part of the air flowing adjacent the Venturi surface, and an axial fuel injector nozzle 19 supplied by a pipe 21 and comprising radial injection orifices 20 for injecting fuel at or near the throat 16 of the Venturi. The surface of the Venturi 15 may be stepped or roughened to remove energy from the axial flow. The swirl vanes 18 may alternatively be mounted on a separate member and the nozzle 19 may be fed from downstream. The Venturi 15 has a rapidly increasing crosssection in its downstream portion, the area at the throat 16 being approximately one third of that at the point 17.