baber/WOPTO huggingface dataset:
Patent GB-1438489-A (GB)
Title: Apparatus for use as a gas compressor or gas blower
IPC: F04B39/00
Filed: 1972-07-11
Abstract: 1438489 Reciprocating compressors; balancing CARDING SPECIALISTS (CANADA) Ltd 5 July 1973 [11 July 1972] 46708/75 Divided out of 1432552 Headings F1M and F1N In a gas compressor, Fig. 1 comprising a piston 9 reciprocable and rotatable in a cylinder 2, the piston being provided with conventional pressure operated valves or valves in the form of peripheral grooves 10, 11 (13), 14 arranged to register sequentially with outlet ports 7, 8 and inlet ports (5, 6) to control the flow of gas into and out of the cylinder on one or opposite sides of the piston 9, the piston 9 is reciprocated and rotated by rotating a shaft 16 carrying the piston, the rotation of the shaft causing double-lobed cams 19, 20 fixed thereto to co-operate with rollers 24, 28, 29 30 rotatably mounted on the cyliner 2, thereby to cause reciprocation of the piston. The compressor shown in Fig. 4 is of the two-stage double-acting type comprising high and low pressure pistons (152, 153) fixed on a hollow shaft (133) and reciprocable and rotatable respectively in low and high pressure cylinders 67, 68. External ducts 76-78 and an intercooler (not shown) interconnect the two cylinders. Details of the construction of the cylinders 67, 68, their pistons (152, 153) and the sealing and mounting of the shaft (133) are depicted in Fig. 8 (not shown). To cause the pistons to reciprocate cams 165, 166 on opposite ends of the shaft co-operate with a respective roller assembly 84, 85, each assembly being pivoted to a lug 87 on the adjacent cylinder end. Fuller details of the roller assemblies are disclosed in Figs. 6 and 7 (not shown). To assist in balancing the reciprocating forces the cylinders 67, 68 are capable of limited longitudinal movement by being provided with mounting elements 57, 58 having sleeves 59-62 slidable along guide rods 54, 55. Each guide rod extends between upstanding sections 52, 53 mounted on a base 51. The compressor is driven through a pulley 170 mounted on a shaft 168 and a coupling 167 (see Specification 1432554 Division F2) which allows reciprocation of the compressor shaft (133). An alternative arrangement for assisting the balancing is described, Fig. 10 (not shown), in which a free piston (203) slides inside the shaft (133) and is acted upon by hydraulic fluid in end chambers variable in volume by movement of the shaft.
Patent GB-996265-A (GB)
Title: Process for the manufacture of vinyl esters
Filed: 1961-12-29
Abstract: In the preparation of vinyl esters by the gaseous phase catalytic reaction of excess acetylene with a fatty acid having up to 6 carbon atoms, the by-product aldehydes are removed or their concentration reduced by reaction with a fatty acid anhydride (up to 6 carbon atoms) which is added before the reaction in the acetylene cycle gas or fatty acid feed, and/or after the reaction, in the gases passing to the condensation or scrubbing stages.  In the preferred procedure 1 to 3% of acid anhydride is added to the starting acetylene, and after the condensation of the vinyl ester, to the recycle gas.  The resulting ethylidenediester may be split to the corresponding vinyl monoester and fatty acid with a catalyst, for example benzene sulphonic acid.  The anhydride of the acid used in the process is preferably used, and a catalyst such as ferric and zinc chlorides, mercuric sulphate and sulphuric and sulphonic acids may be used. Examples describe the preparation of vinyl acetate, propionate and caproate using the corresponding anhydrides to avoid or reduce the aldehyde formation.
Patent GB-1193316-A (GB)
Title: Voltage Threshold Level Detector Circuit
IPC: H03K17/60
Filed: 1967-10-16
Abstract: 1,193,316. Transistor switching circuits. INTERNATIONAL BUSINESS MACHINES CORP. 16 Oct., 1967 [3 Nov., 1966], No. 47014/67. Heading H3T. A voltage threshold level detector which provides an output of one level when the input lies in a zone defined by two predetermined levels and an output of a second level when the input lies above or below the zone, comprises a first transistor 1 having the emitter-collector path of a second transistor 8 connected across its emitter-base path, the emitters of both transistors being connected to a common potential (ground) and the input 5 being coupled to the bases of both transistors such that the first transistor 1 is rendered conductive when the input exceeds the lower of the predetermined levels and the second transistor 8 is rendered conductive when the input exceeds the upper predetermined level, thus cutting off the first transistor 1. Hence with the input below the lower or above the upper levels, an output 4 of the voltage + V at 2 is obtained, transistor 1 being cut off, and with the input between the two levels, an output of ground potential is obtained, transistor 1 being switched on. It is ensured that transistor 8 switches on at a higher input than does transistor 1 by the provision in the base lead of transistor 8 of one or more diodes 9, which may be of similar or disimilar material to that of transistors 1, 8, or a Zener diode or a stabistor. The circuit may be integrated, and diode 9 may be a transistor connected as a diode.
Patent GB-1200495-A (GB)
Title: Sewage treatment process
IPC: C02F3/04
Filed: 1967-10-16
Abstract: 1,200,495. Trickling filters. IMPERIAL CHEMICAL INDUSTRIES Ltd. & ETHYL CORP. 16 Oct., 1967 [24 Oct., 1966], No. 47073/67. Heading ClC. Normally raw sewage after separation of sand and other inorganic materials is fed to a biological filter 8 packed with synthetic polymeric material such as described in Specification 1,080,991; the effluent flows to a primary settler 10, a secondary biological treatment 12 and a final settling in clarifier 14 before discharge. During overload conditions the raw sewage is fed to the filter 8 which is large enough to cope with the increased volume but only a portion proceeds as before the rest flowing direct to final settler 14 for discharge while a portion of the secondary treatment effluent at least is directly discharged.
Patent GB-1132225-A (GB)
Title: Closure strip
Inventor: MACEY JOHN EDWARD
IPC: A47K3/00
Filed: 1965-11-06
Abstract: 1,132,225. Baths. TRIMA PRODUCTS & DESIGNS Ltd. 6 Nov., 1965, No. 47163/65. Heading A4N. A natural or synthetic rubber strip, of T-shaped cross-section, has a step 14 against which a tool 18 may be applied to force the strip into a gap between the rim 16 of a bath and a wall 17. On withdrawing the tool 18, the strip is frictionally retained in the gap and the edges of the flange press resiliently against the bath rim 16 and wall 17. A stiff wire may be inserted into a bore 25, so that, when bent, it imparts its shape to the strip. The ends of the strip may thus be bent round beneath the rim 16, at the ends of the bath. (Figs. 4-6, not shown).
Patent GB-1119997-A (GB)
Title: Control circuits for electric motors
IPC: H02K17/30
Filed: 1966-10-21
Abstract: 1,119,997. Control of A.C. motors. A. J. LEWUS, and J. P. MARTIN. 21 Oct., 1966 [23 Oct., 1965], No. 47365/66. Heading H2J. [Also in Division H1] The main winding 14 of a capacitor-start motor is connected in series with the primary winding 26 of a transformer, the initial value of starting current being sufficient to lift core 44 and so increase the coupling between primary winding 26 and secondary windings 27, 28, of the transformer. The latter windings develop control signals to fire silicon controlled rectifiers 31, 32, so that the motor starting winding 15 is energized until the motor reaches full speed, whereupon the current through windings 14, 26 decreases and the core 44 drops. The inductive coupling between the primary and secondary windings of the transformer is then reduced, and the controlled rectifiers are rendered non- conductive to de-energize the starting winding. Afterwards, if the motor is heavily loaded, the transformer again develops control signals of sufficient amplitude to trigger the rectifiers. The motor is of the duel voltage type with main winding sections 16, 17. The motor is rearranged for low-voltage operation by disconnecting terminals 18, 19, and connecting terminals 19, 20. In another arrangement, the core 44 is spring-biased, the rectifiers 31, 32 are replaced by a triac, and the transformer has a single secondary winding. In a further embodiment, the starting winding 15 is associated with a continuous duty capacitor as well as the starting capacitor 29. Diodes connected in series with the rectifiers 31, 32 allow the voltage rating of the latter to be reduced.
Patent GB-1088903-A (GB)
Title: Production of hydrogen cyanide
IPC: C01C3/02
Filed: 1964-11-20
Abstract: In a process for the production of hydrogen cyanide by the vapour phase reaction of ammonia, natural gas and air in the presence of an elemental platinum or platinum alloy gauze catalyst (e.g. 80-90% platinum to 20-10% rhodium by weight), the new or fresh catalyst is activated by passage of the reaction mixture through the gauze catalyst at a temperature from 1100 DEG  to 1200 DEG  C. such that the mole ratio of ammonia to natural gas (95% methane) is 0.7-1.0 and the mole ratio of natural gas to air (taken as 79% N2 and 21% O2 and having a molecular out of 29) is 0.17-0.2, and the specific mass flow rate is 1.28-1.45 lb./hour/layer of gauze of 3 mil x 8 mesh U.S.S.S./square inch of gauze surface, until the yield of hydrogen cyanide reaches a maximum.  After activation the reaction may be performed at 500-1300 DEG  C., and specified optimum production conditions include a mole ratio of ammonia to natural gas of about 0.7:1 to about 1.2:1 and of natural gas to air of about 1:5 to about 1:7.5, the reaction being initiated by heating the gases or catalyst or by ignition of the gaseous mixture with a flame or electric heating wire. Near atmospheric pressure is preferable with gauze catalysts.  Specified mass flow rates for the production step are 0.5 to 1.7 lb./hr./layer of gauze/sq. inch of gauze surface and catalyst contact times are from 0.001-0.002 seconds. Other catalysts detailed are platinum-iridum and platinum-palladium.
Patent GB-1033087-A (GB)
Title: Control means for textile roving frames
Inventor: ADAMS CECIL SIMPSON
IPC: D01H13/16
Filed: 1962-12-17
Abstract: In a textile machine in which a supply of rovings S are fed over a lifting roll 15 Fig. 1, not (shown), to drafting rollers 13 and thence in the form of attenuated strands R to packaging means 17, 18, 19, breakage slackness of the strands is detected at points before or after the drafting rollers by detecting means B and A respectively. In the event of such a fault the detecting means operate through electrical circuits (see Division H2) to stop the driving motor for the machine and to illuminate a signal light which gives a steady signal if the fault occurs after the drafting system and a flashing signal if before.  The detecting means A and B may include a number of upstanding wires 20 each of which is slightly inclined to the vertical so as to rest against a p  moving strand or sliver.  Each wire 20 is secured at its lower end to a shaft 21 of an electric switch so that breakage of the strand allows the wire to fall over and thus to operate the switch.  In an alternative construction of the defecting means B, Figs. 4-8, (not shown), a rod extends transversely beneath the slivers, being supported or suspended at its ends in such manner that a broken strand will drape itself over the rod causing it to rock to a position in which the contacts of a switch associated therewith are closed.  In this construction the detecting means are not normally in contact with the moving strands. The electrical circuit preferably includes means by which stopping of the motor is prevented temporarily if the transversing carriage is reversing.
Patent GB-1425554-A (GB)
Title: Battery electrode grids and method of making same from a lead- calcium-lithium-tin- alloy
IPC: C22C11/02
Filed: 1974-11-06
Abstract: 1425554 Grids for lead-acid batteries ST JOE MINERALS CORP 6 Nov 1974 [26 Nov 1973] 47934/74 Heading H1B [Also in Division C7A] An electrode grid for a lead-acid battery cell is made of an alloy containing The grid is made by casting into a mould at 450‹ F after adding the Li, Ca and Sn to molten lead at 700-850‹ F either in air or under a flux or inert gas cover. The cast grid is air cooled. The addition of Ca to the basic Pb-Li -Sn alloy improves both the as-cast and relatively aged properties, thus improving the cycling behaviour of the grid.
Patent GB-1150966-A (GB)
Title: Bactericidal Detergent
Inventor: BONDY HERBERT FREDERICK
IPC: C11D17/00
Filed: 1966-10-27
Abstract: 1,150,966. Bactericidal detergent. COALITE & CHEMICAL PRODUCTS Ltd. 27 Oct., 1967 [27 Oct., 1966], No..48289/66. Heading A5E [Also in Division C5] A bactericidal detergent composition in solid forms contains a bactericide which comprises one or more of the following: (a) chlorinated phenyl phenol, (b) phenylphenols (c) 2,2' - dihydroxy - 3, 5, 6, 3', 5' 6' - hexachlorodiphenyl methane. The amount of bactericide in the detergent may be 8-12% by wt.
Patent GB-1527539-A (GB)
Title: Modular tap connector box
IPC: H04N5/00
Filed: 1976-11-23
Abstract: 1527539 Junction boxes; electrical connectors ARVIN INDUSTRIES Inc 23 Nov 1976 [18 Dec 1975] 48848/76 Heading H2E A junction box incorporates two electrica connectors 75, 80 formed by cylindrical insulators 95, 103 and 96, 105 respectively, the insulators 95 and 96 being mounted on an upper part 50 of the junction box housing and having respective screws which serves as electrical contacts located within them whilst insulators 103 and 105 are mounted on a lower part 55 of the housing and are each provided with slots (110), see Fig. 3 (not shown), 112, so that when parts 50, 55 are joined the insulators 95, 103 and 96, 105 come together to retain a conductor or conductors in the slots. In the embodiment shown the junction box is for tapping off feeder cables to individual homes from a distribution cable of a cable television system.
Patent GB-1204718-A (GB)
Title: A housing for a fluid-actuated motor
IPC: B25B21/00
Filed: 1967-10-27
Abstract: 1,204,718. Portable power tool. GARDNER-DENVER CO. 27 Oct., 1967 [16 March, 1967], No. 48890/67. Headings B3C and B3N.  A portable drill, screw driver, impact nut runner, or tapper, comprises a plastics casing 26 having an integral handle 20, and a metal sleeve 12 press fitted into the casing, into which is screwed end pieces 14, 16. The liner contains a tool operating mechanism 17 comprising an air motor 36, and a gear mechanism 48. Air is supplied to motor 36 via a valve 40, and a passageway 44. The bore 22 of the easing is tapered, and the exterior surface of sleeve 12 is also tapered, so as to provide a press fit, and the joint faces may be coated with epoxy resin.
Patent GB-1285383-A (GB)
Title: A rotary drag line coupling for a mobile irrigation device
Inventor: INGRAM CARL B
IPC: A01G25/09
Filed: 1970-04-13
Abstract: 1285383 A roll-type irrigation device C B INGRAM and L E WATSON 13 April 1970 49178/71 Divided out of 1285382 Heading AID [Also in Division F2] The description is the same as that of Specification 1285382 but the claims relate primarily to a rotary drag-line coupling for a mobile irrigation device in which seals are provided within the tubular coupling body at opposite sides of the passage which opens into the body and communicates with the swivel coupling for passage of water therethrough.
Patent GB-1411222-A (GB)
Title: Method of manufacturing sandwich elements
IPC: B05D7/00
Filed: 1971-10-22
Abstract: 1411222 Laminated construction panels INTERWEST GENERAL CORP 18 Jan 1973 [22 Oct 1971] 49212/71 Heading B5N A laminate which may be used as a constructional panel comprises a composite layer bonded to one or both faces of a core layer, the composite layer comprising (i) an outer layer of solid particles and hardened resinous binder, (ii) a support layer, and (iii) an inner layer as in (i) and having a surface stratum of excess binder by which the bonding occurs, the core layer absorbing or incorporating said excess binder and engaging the support layer. The composite layer may be made by doctoring a mixture of binder and particles on to a base layer, which may be glass or metal treated with a release agent or a gypsum board forming part of the laminate), applying a support layer to the doctored layer, doctoring a second mixture of binder and particles containing excess binder and allowing the particles to settle whereby the surface stratum of binder is formed. Excess binder may also be provided in the first mixture and may be absorbed by a suitable support material or, if the support is permeable, may contribute to the formation of the surface stratum by settlement of the particles in the second mixture through the support. After the core has been applied and the binder hardened, a second composite layer may be applied to the other side of the core. The particles may be sand, stone, slag or metal. The binder may be a curable polyester or polyvinyl chloride, polyvinyl acetate, polyether, polyurethane, polyethylene, phenol-formaldehyde or epoxy resin. The support may be metal or plastics net, paper, gauze ribbon or glass fibre fabric. The core may be corrugated or honeycomb board or sand with a deficiency of polyester binder. The layer (iii) may be continuous or discontinuous. The laminate may be flat or curved.
Patent GB-1506267-A (GB)
Title: Method of operating a gas heater and a device for effecting such a method
IPC: F23N1/06
Filed: 1975-12-02
Abstract: 1506267 Controlling rate of flow of flue gases WAMSLER HERD-UND OFEN GmbH 2 Dec 1975 [5 Dec 1974] 49537/75 Headings F4B and F4W The resistance to the flow of exhaust gases from a gas-fired heater is controlled in dependence on the chimney draught and exhaust gas temperature. In a conventionally flued gas fired heater having a downdraught diverter, a tapered sleeve 10 is inserted in the flue beyond the downdraught diverter, and a counter balanced flap valve 13 is arranged to pivot about pins 12 sliding in slots 11 so as to reduce the flue passage when the chimney draught increases. The pins 12 are moved in the slots 11 by a bi-metal coil 17 arranged so that the pivots 12 and hence the valve 13 are moved towards the narrow part of the sleeve 10 as the flue gas temperature falls. The arrangement should be adjusted so that no flue gas exits from the downdraught diverter and substantially no air is drawn into the downdraught diverter during normal operation, whatever the burner setting.
Patent GB-1375180-A (GB)
IPC: E04H15/52
Filed: 1971-10-26
Abstract: 1375180 Tents C F HUDDLE 26 Oct 1971 [27 Nov 1970] 49650/71 Heading E1A A tent comprises a series of arches pivotally mounted on a base and between each pair of arches there extends a flexible plastics membrane 3 which is concave lengthwise between the bights of the arches and tensioned by means holding the arches apart such as purlins, a cable 22 and guys 23. The membrane 3 is attached to the arches by beads engaging channels therein, see Figs. 5 and 10 (not shown) and the arches may be made of metal or laminated wood. The arches may be mounted on the base so that their ends are closer to-gether in the recumbent positions than in the erected positions and for the construction thereof and minor modifications and details concerning re-inforcement of the membrane, materials employed, method of erection, end panels &c the Specification and remaining drawings (not shown) should be referred to.
Patent GB-1249877-A (GB)
Title: Simulated golf course
Inventor: VALLAS THEODORE LAMBRO
IPC: A63B69/36
Filed: 1968-10-18
Abstract: 1,249,877. Simulated golf course. T. L. VALLAS. 18 Oct., 1968, No. 49672/68. Heading A6D. The golf course comprises a covered area 200 having an enclosure thereabout and an air-screen 212-216-218 on one side. A putting area 22 and basic playing area 10 are adjacent thereto. A plurality of driving-positions 11 along an elongated tee area within the covered area are adjacent and run parallel to an elonagted sand area 210. A fairway extending away from the sand area is marked, as at 101-114, to indicate various distances from the tee area and includes a plurality of actual or simulated hazards, e.g. trees 61-65, shrubbery, water or sand-traps 40-51. A number of simulated golf greens 30E-30K are located at varying distances, e.g. 80-220 yards, from the tee area. A player may thus hit successive shots from the same tee to any chosen green. Further "grassy" golf greens are provided between the sand area and first green 30D, whereby a player is enabled to hit a sand-trap or chip shot from the area 210 onto one of these "grassy" greens. The simulated greens may be shallow water-containers 31 raised. above the general ground level. The "grassy" greens may be covered with artificial nylon grass. The water in the simulated greens may be illuminated and the distance markers, flags and sand-traps be luminescent to facilitate night playing. The putting area is used after a player has achieved his selected simulated green on the fairway, and a variety of surface conditions may be provided here.
Patent GB-1490172-A (GB)
Title: Pressure roller
IPC: F16C13/00
Filed: 1975-12-03
Abstract: 1490172 Rollers INST MEKHANIKI METALLOPOLIMERNYKH SISTEM AKAD NAUK BELORUS SSR 3 Dec 1975 49725/75 Heading F2U [Also in Division B3] A roller for applying pressure to an abrasive belt of a grinding and polishing machine comprises rings 2 of resiliently flexible material having teeth 7 inclined to the radius and pointing in the same circumferential direction, the teeth decreasing in cross-section towards their outer ends and the teeth of adjacent rings being angularly staggered. The rings may be made of plastics with teeth of profile shown in Figs. 2, 3 and 4. Pairs of teeth may be joined to form cavities (9), Fig. 5 (not shown), in which rubber shock-absorbing inserts (10), Fig. 6 (not shown), may be provided. Metal washers (11) with lugs (12), Figs. 7 and 8 (not shown), may be interposed between the rings. Electrostatic charges may be removed by conductors (13), Figs. 9 and 10, of metal or a plastics composition.
Patent GB-1304290-A (GB)
IPC: B67D7/22
Filed: 1970-10-20
Abstract: 1304290 Petrol pumps; measuring fluid flow VEEDER INDUSTRIES Inc 20 Oct 1970 [21 Oct 1969] 49744/70 Headings G4D and G4H The cost of fuel dispensed is computed by selective activation of binary-coded switches controlling lamps in arms 32-34 arranged radially across a perforated disc 31 rotated by the meter. As described, each arm 32-34 carries four lamps which may be lit selectively according to unit price or may be selectively masked. As the disc 31 rotates light passes through holes 49 to photo-electric cells so as to enter appropriate denominations of a cost counter. Modifications are described for mixing fuels or selecting a blend or adding a surcharge.
Patent GB-1368436-A (GB)
Title: Moulded plastics storage case
IPC: B65D1/22
Filed: 1971-10-27
Abstract: 1368436 Plastics crates T M BOX 27 Oct 1971 49999/73 Divided out of 1368435 Heading B8P A moulded plastics storage case 14 as used with the skatewheel conveyer described in the parent Specification 1,368,435, comprises a base 15 provided with downwardly extending circular ribs 20 which contact one another tangentially and have the same height. Case walls 16, 17 have weight-saving openings 19 and carrying holes 18 are provided in the end walls 17. The case may be of polypropylene, polyethylene or polyvinyl chloride.