baber/WOPTO huggingface dataset:
Patent GB-1256623-A (GB)
IPC: A24D3/04
Filed: 1969-01-16
Abstract: 1,256,623. Cigarette filter. T. VIRGILI and G. CAPOTONDO. 16 Jan., 1969 [23 Oct., 1968], No. 2631/69. Heading A2C. A cigarette filter comprises a body member having a first end and a second end for application to a cigarette which end is provided with an axial passageway in the form of a venturi and opening into a chamber provided with an end wall which faces the axial passageway and provides a stop member for smoke flowing through the passageway. The chamber is in communication with an area downstream of said stop member through radial apertures and longitudinal passages provided in the outer wall of the body member, the radial apertures being arranged upstream of the end wall so that smoke impinging against the end wall is forced to flow back before entering the radial apertures. The filter may be constructed in two parts as shown in Fig. 1 wherein part A is in the form of a disc traversed axially by the passageway O and part B contains a chamber C. Projections N and circular groove M enable the parts to be joined, and also form radial apertures L and longitudinal passages H. Smoke passing through the passageway O is cooled and tar condensed on the end wall S of the chamber C.
Patent GB-1257079-A (GB)
IPC: F02D41/08
Filed: 1969-02-14
Abstract: 1,257,079. Rotary-piston I. C. engines; alternating fuel and air cycles in I.C. engines. ROBERT BOSCH G.m.b.H. Feb. 14, 1969 [Feb. 16, 1968], No. 8022/69. Headings F1B and F1F. In a rotary-piston I.C. engine having three working chambers 20, 21, 22 defined by a watercooled housing 15 and a piston 11 that revolves in a planetary manner, whenever each of said chambers communicates with an inlet port 26 fuel is injected through an electronically-controlled valve (not shown) into air approaching this port, said valve being therefore opened thrice during each revolution of the piston. To prevent contamination of the fuelair mixture entering each chamber by residual exhaust-gases therein when the engine is idling. or lightly loaded the valve aforesaid is kept closed while the chamber is being re-charged during at least every other revolution of the piston so that for the time being the chamber receives air only, which subsequently effects removal of most of the residual exhaust-gases through an outlet port 27. The compressed mixture is ignited by a spark-plug 28. It is indicated that the invention is also applicable to a reciprocating-piston I.C. engine.
Patent GB-1264651-A (GB)
IPC: C01B21/42
Filed: 1969-02-14
Abstract: 1,264,651. Phosphoric acid. TENNESSEE CORP. 14 Feb., 1969 [16 Feb., 1968; 29 April, 1968 (2); 31 July, 1968 (2)], No. 8288/69. Heading C1A. Phosphoric acid is produced by (a) treating phosphate rock with nitric acid to produce a mixture of nitric and phosphoric acids and then precipitating calcium nitrate from the acidulate, (b) removing the precipitate and (c) contacting the acid mixture with a gas containing nitric oxide so as to react with the nitric acid to give nitrogen dioxide, which is removed, thereby reducing the nitrate content of the resulting solution. In step (a) the calcium nitrate is precipitated by treating the crude acidulate with highly concentrated nitric acid, or with nitrogen dioxide and oxygen under pressure, to reduce its water content, preferably to below 14 wt. per cent. In a preferred procedure, the calcium nitrate separated from the acidulation vessel 25 is decomposed in a fluidized bed reactor 1 at above 650 C. to give nitrous gases which may be used to supply the nitric oxide used in step (c). Part of this decomposition gas may also be used to supply nitrogen dioxide via line 24 for use in precipitating the calcium nitrate or may be reacted with oxygen and water in autoclave 10 to provide nitric acid, e.g. for use in the acidulation or in the precipitation. Heat is supplied to the reactor 1 by recycling a part of the product line and reheating it in fluidized bed vessel 17. Part of the decomposition gas may be recycled via line 7 to act as the fluidization gas.
Patent GB-1267238-A (GB)
IPC: B41M5/30
Filed: 1969-05-29
Abstract: 1,267,238. Adducts of amines and metallic or organometallic halides. NASHUA CORP. 29 May, 1969 [31 May, 1968], No. 27140/69. Headings C2C and C2J. [Also in Divisions C1 and G2] Heat-dissociable adducts for use in association with an indicator which changes colour by chemical reaction with an amine in thermographic recording sheets (see Division G2) comprise the reaction products of an amine ligand with an acceptor molecule selected from halides and organo-metallic halides of silicon, germanium, tin and lead. In the examples the adducts include the reaction products of (4) NH 3  with (C 2 H 5 ) 3 GeBr, (8) dimethylamine with CH 3 GeBr 3 , (14) trimethylamine with CH 3 GeBr 3 , (46) to (51) ethylene diamine, N-hydroxymethylpiperazine, N - hydroxyethyl - piperazine, diethylene triamine, triethylamine and diethanolamine with GeCl4 and (52) and (55) 1,3-diaminopropane and ethylene diamine with SiCl 4 .
Patent GB-1289083-A (GB)
IPC: C08K9/08
Filed: 1970-01-13
Abstract: 1289083 Polymer coating compositions E I DU PONT DE NEMOURS & CO 13 Jan 1970 [30 Jan 1969] 1718/70 Headings C3B B1D2C B1N1A and B1N13B Compositions for coating silica substrates comprise (A) a copolymer of 55 to 97 wt. per cent of ethylene units and 3 to 45 wt. per cent of C 3 -   8  α, #-ethylenically unsaturated acid units 5 to 75 per cent of which have been neutralized with metal ions; (B) 1 to 25 wt. per cent based on (A) of a cross-linking agent which is an epoxy resin, urea/ formaldehyde resin or hexalkoxymethyl melamine resin; and (C) 0À1 to 40 wt. per cent based on (A) of an organic silane having at least two hydrolyzable groups attached to the silicon atom. Preferred copolymers contain 5 to 15 per cent of methacrylic acid of which 10 to 60 per cent is neutralized with sodium ions. Preferred crosslinking agents include epichlorohydrin/Bisphenol A condensates and hexamethoxymethyl melamine. The silane may be chloropropyl trimethoxysilane, gamma-aminopropyltriethoxysilane, gammamethacryloxypropyl trimethoxysilane, methyl trimethoxysilane, vinyl trimethoxysilane and tetraethylorthosilicate. The compositions may be applied to glass fibres and cured by heating prior to incorporation of the fibres in hydrocarbon resin moulding materials, e.g. polyethylene, polypropylene, polybutene or polystyrene. Examples describe coating compositions comprising aqueous dispersions of ethylene/methacrylic acid copolymers partially neutralized with sodium ions, sodium oleate and chloropropyl trimethoxysilane or tetraethylorthosilicate and (1 and 2) hexamethoxymethyl melamine, (3) epichlorohydrin/Bisphenol A condensate and (4) urea/formaldehyde resin; and the incorporation of treated glass fibres in polyethylene.
Patent GB-1290752-A (GB)
IPC: C25B11/081
Filed: 1970-06-04
Abstract: 1290752 Stripping coated Ti electrodes; recovering Ti IMPERIAL CHEMICAL INDUSTRIES Ltd 12 May 1971 [4 June 1970] 27067/70 Headings C7E and C7D The coating is stripped from an electrode comprising a Ti support and a coating comprising a platinum metal oxide thereon by immersing it in an aqueous mixture comprising at least one strong mineral acid other than HNO 3  with HF and/or a precursor compound that will react with the mineral acid to give HF. The Ti is then suitable for re-coating and re-use as an electrode. The mineral acid may be HCl, preferably 20-40 wt per cent, or H 2 SO 4 , preferably 25-100%, and the HF preferably constitutes 0À1-8% of the mixture; HF precursors mentioned are NH 4 F, NaF and KF. Stripping is generally at 25-100C. for less than an hour.
Patent GB-1295111-A (GB)
IPC: H01R33/02
Filed: 1970-10-19
Abstract: 1295111 Lamp holders VOSSLOH-WERKE GmbH 19 Oct 1970 [23 Oct 1969] 49444/70 Heading H2E A lamp holder for tubular fluorescent lamps of the type having two socketed ends comprises a base 1 with tiltable cover 2 which houses a contact pin 5 spring loaded in an axially movable bearing member 9 arranged with a spring 3 such that the bearing member is moved in a direction towards the lamp when the cover is closed. The cover is secured by a screw 6 engaging a nut member provided in the base. In another embodiment a lever replaces the spring 3 and a compression spring is provided to force back the bearing member into the "open" position when the screw-and-nut members are not secured. A device 10 is provided to conduct heat away from the lamp socket.
Patent GB-1297239-A (GB)
IPC: A63B53/04
Filed: 1971-10-29
Abstract: 1297239 Golf clubs ACUSHNET CO 29 Oct 1971 [15 Jan 1971] 50351/71 Heading A6D A golf club other than a putter (i.e. a "wood" or an "iron") has a loft of at least eight degrees and comprises a club head and a shaft, the club head being characterised by having a radius of gyration greater than 1.05 inches when measured with respect to an axis parallel to the shaft and passing through the centroid of the club head. This may be achieved by shaping the club head as shown in Fig. 4 and may be assisted by weights 40 of lead or tungsten or tungsten alloy or other material denser than the club head. The heel weight may conveniently be located in an extension of the hole receiving the shaft in the hosel.
Patent GB-1301673-A (GB)
IPC: C25D3/38
Filed: 1969-06-20
Abstract: 1301673 Electro-plating cathodically activated steel BEKAERT SA NV 8 May 1970 [20 June 1969] 31369/69 Heading C7B An Úlectro-plated stainless steel article, e.g. wire, strip or sheet, is produced by cathodically activating the article surface(to remove the tenacious oxide film) in an aqueous acid bath, e.g. comprising H 2  SO 4 , HCl, H 3  PO 4 , HBF 4 , HF or NH 2  SO 3 H and having a pH of less than 4, at a cathodic current density at least 10 A/dm<SP>2</SP>, followed by electro-plating to provide the desired layer, e.g. of Zn, Fe, Cd, Ni, Pb, Mn, Cu, Ag or Au from acid plating baths, or of Cu and/or Zn from alkaline (e.g. cyanide) plating baths. The anode used for activating may be of Pb or C. Prior to activating, the surface may be cleaned by immersion in an aqueous acid or alkaline bath, e.g. comprising HCl, then by anodic treatment in an aqueous solution of H 3 PO 4 , HCl and/or H 2 SO 4 . The article may be continuously passed through the baths. Examples of plating baths are: (1) 200g/l each of CuSO 4  7H 2 O and H 2 SO 4 ; (2) 100g/l Pb (BF 4 ) 2  and 30g/l each of HBF 4  and H 3 BO 3 ; and (3) 40g/l Cu with or without 30g/l Zn, 5-10g/l KCN and 100g/l Na 2 CO 3 . Brightening agents may be incorporated into the plating baths.
Patent GB-1301839-A (GB)
IPC: B23B31/06
Filed: 1969-03-11
Abstract: 1301839 Adaptor; tool holders B O MORRIS Ltd 11 March 1970 [11 March 1969] 12820/69 Headings B3B and B3C A rotary or non-rotary quick release adaptor for supporting the shank 16, Fig. 1, of a cutting tool or tool holder, comprises a housing 10, a bush 15 screwed to the shank, a ball assembly 19, 20, and a spring-urged sleeve 22 for retaining the shank in the housing, the sleeve being movable against the spring 25, so that the ball assembly moves outwardly and releases the shank. Housing 10 may be adapted to be secured to a tool turret, and shank 16 is held against rotation in the housing by a key and keyway 17, 18. On withdrawal of the shank, the bush 15 relases a spring-urged plunger 26 which urges a ball 30 into an annular recess 24 in sleeve 22, so as to prevent the sleeve from being urged into its locking position by spring 25. A large ball, or a pin with spherical ends, may replace balls 19. Balls 30 may also be replaced by a pin with spherical ends. Sleeve 22 may be slidable on the housing, or may be screwed thereon. Bush 15 may be integral with the shank of a tool or tool holder.
Patent GB-1304778-A (GB)
IPC: F24D12/02
Filed: 1970-08-14
Abstract: 1304778 Outlets to chimneys POTTERTON INTERNATIONAL Ltd 28 July 1971 [14 Aug 1970] 39315/70 Heading F4W An exhaust collection hood for connecting two independently fired gas appliances to a flue comprises a box-like member 10 for mounting above a water boiler 1 with an inlet for the waste gases from the boiler, a second inlet for the reception of a connection piece 31 leading gases from the flue outlet 30 of a space heating appliance, an outlet for connection to a flue pipe 18 and a second outlet open to the atmosphere to allow the exit of gases in downdraught conditions. The first inlet is sealed to boiler outlet by a gasket 15 and the second inlet extends across the front of the box above a baffle 22, while the downdraught outlet extends across the front of the box below the baffle 22. A baffle 23 prevents downdraught entering the boiler flue spaces. The connection piece 31 is secured to the space heater, and is telescopically adjustable in the box, and hook bolts 35 connect the space heater to the boiler.
Patent GB-1307801-A (GB)
Title: Breathing apparatus
IPC: A62B9/04
Filed: 1971-02-05
Abstract: 1307801 Breathing apparatus S F ROBERTS (1960) Ltd 7 Feb 1972 [5 Feb 1971] 4064/71 Heading AST In breathing apparatus of the kind comprising a carrier for supporting a gas cylinder in an inverted position on a user's back, and a connector 16 for connection to the cylinder outlet and communicating with a face mask through a pressure-reducing device 21 and a connecting hose 23, the carrier is formed by a framework which includes one or more load-carrying upwardly-extending metal tubes 1, 2 communicating, at or near the lower end of the framework, with the connector 16, and, at or near the upper end of the framework, with the hose 23, so that, in use, the gas is conducted to the face mask upwards through the tube or tubes 1, 2. As shown, two tubes 1, 2 are spaced laterally apart with their bores connected by a cross tube 3. The pressurereducing device 21 is connected at the upper end of the tube 2, with the hose 23 extending therefrom. A pressure gauge 19 is connected to the upper end of tube 1. A warning whistle 20, which operates at a predetermined minimum pressure, is connected to the lower end of tube 2. Side frames 28, 29 attached at each end of a looped bar 27, are secured around the user's waist.
Patent GB-1314818-A (GB)
Title: Acoustical transducers
IPC: H04R17/00
Filed: 1969-07-29
Abstract: 1314818 Piezo-electric elements MULLARD Ltd 27 July 1970 [29 July 1969] 38052/69 Heading H1E [Also in Division H3] In order to improve the bandwidth and impedance matching of a piezo-electric or piezomagnetic transducer attached to a propagating body, e.g. a delay line, the amplitude of the response of the transducer is arranged to decrease continuously in the direction of propagation from a maximum at the boundary of the transducer remote from the propagating body to zero at the boundary adjacent the body, substantially in accordance with the function where d is the total distance between the boundaries and x is the distance from the first boundary at which the response is measured. It is stated that the prescribed variation produces a reactive acoustic impedance which does not change sign (i.e. remains negative) throughout the pass-band and an acoustic resistance which remains substantially constant. The necessary gradation of response may be obtained either by varying the properties of the piezoelectric or piezo-magnetic material or by varying the electric or magnetic field. A combination of both methods may be used. The methods described in Specification 1,208,154 for obtaining a linear variation may be adapted to produce the variation required by the present invention.
Patent GB-1318350-A (GB)
Title: Needle positioning mechanism for a sewing machine
IPC: D05B69/28
Filed: 1969-10-29
Abstract: 1318350 Sewing machines SEWPRIMA Ltd 23 Oct 1970 [29 Oct 1969] 52949/69 Heading DIG  In a sewing machine having a main shaft 1 driven at normal working speed by a main motor driving a pulley 2 coupled to a main drive wheel 4 through an overrunning pawl and ratchet clutch 6 and at a lower speed prior to stopping by a secondary motor 7 driving a second spindle 8 clutched to the wheel 4 through a second overrunnnig pawl and ratchet clutch 11 when the main drive ceases, means are provided to trip the clutch 11 and stop the machine in a predetermined position. The ratchet wheel 10 on shaft 8 drives through a friction disc 14 or. disc 12 loosely mounted on shaft 8 and carrying a pin 15 adapted to engage a stop pin 17, a second pin 16 being adapted to trip the pawl 11. During normal operation wheel 4 is rotating faster than wheel 10 and centrifugal force keeps pawl 11 out of engagement with the wheel 10. When the operator applies a brake to stop the machine, rotation of pulley 2 stops and wheel 4 slows down to a speed at which pawl 11 engages wheel 10 so that wheel 4 continues to be driven by motor 7. Wheel 10 also drives disc 12 until pin 15 engages stop 17 at which position pin 16 releases pawl 11 and the wheel 4 stops instantly in a predetermined position e.g. needle raised. A second pin 15a may be provided on disc 12 for stopping in a second position e.g. needle lowered, a solenoid 18 being operated to withdraw stop 17 momentarily to allow the pin 15 or 15a to clear it the disc 12 then rotating from the position determined by one of the pins to that determined by the other.
Patent GB-1319227-A (GB)
Title: Movement control system
IPC: G11B5/55
Filed: 1971-02-15
Abstract: 1319227 Positioning system INTERNATIONAL BUSINESS MACHINES CORP 15 Feb 1971 4681/71 Heading G4H In a device for positioning the pick-up head of a magnetic disc store over a selected track, the point at which the motion of the head is switched from acceleration to deceleration is calculated and used to control the drive motor in a non-linear mode. A digital representation of the number of tracks to be moved is loaded into counters 11 and 12, Fig. 4, from the central processor. The position of the head is indicated by a track detector unit 18 which generates a chain of pulses. These pulses are used to decrement counters 11 and 12. Initially counter 12 is decremented by 2. The contents of counter 12 is monitored by decoder units 21 and 22 which produce enabling pulses on AND gates 25 and 26 when the contents of the counter 12 is less than certain values. The output of position indicator 18 is also used to drive a four stage counter 23. Initially counter 12 is decremented by an extra pulse after every eight pulses produced by the position indicator, by means of counter 23. When decoder unit 21 is activated, counter 12 is decremented by an extra pulse after every four pulses and when decoder unit 22 is activated counter 12 is decremented by an extra pulse after every two pulses. In this way the counter is decremented to zero at a faster rate than the counter 11. When counter 12 contains zero counts a signal is sent to the motor control unit 15 causing the switch from acceleration to deceleration. When counter 11 contains a "1", a second signal is delivered to motor control 15 causing the motor to stop at the selected track. In a second embodiment, Fig. 6, the point at which the drive is switched from acceleration to deceleration is determined by comparing the contents of two counters 32 and 31. A digital representation of the number of tracks to be moved is fed into counter 31 from the central processor 36. Counter 31 is then decremented by pulses generated by the position indicator 37. These pulses are also fed to a four stage counter 41 and pulse counter 38. Initially decoder unit 41 enables AND gate 44 so that an output pulse from counter 41 is produced for every two position pulses received, and fed via AND gate 44, OR gate 42, and AND gate 45 to counter 32. After twenty four position pulses have been received, counter 32 is incremented by one count for every four position pulses, and after eighty position pulses have been received counter 32 is incremented by one count for every eight position pulses received. When the equality is obtained between the contents of counter 31 and 32 a signal is sent by comparator 33 to motor control 34 to change the drive from acceleration to deceleration.
Patent GB-1321921-A (GB)
Title: Valve units for hydraulic braking systems
IPC: B60T8/26
Filed: 1971-04-27
Abstract: 1321921 Inertia-controlled hydraulic braking; valves GIRLING Ltd 7 April 1972 [27 April 1971] 11527/71 Headings F2F and F2V In an intertia-controlled valve unit 1 for an hydraulic vehicle braking system, the effective distance by which the valve member 9 can move away from the seating 8 into a retracted position is limited by a stop member 14 which is accessible from the exterior of the body and the position of which with respect to the seating 8 is positively adjustable in opposite directions. As shown, the adjustable stop member is a self-locking screw 14 threaded through the plate 4 and capable of being rotated by a screw driver inserted through opening 16 in plug 3. Preferably, the effective distance of travel is reduced to a minimum for any given condition of vehicle loading, thus enabling the overall length of the unit to be reduced to a minimum. Where the valve member is not a spherical ball, preferably the common axis of the screw and the seating 8 is coaxial with the axis of the valve member.
Patent GB-1325560-A (GB)
Title: Crash barriers
IPC: E01F15/04
Filed: 1970-10-08
Abstract: 1325560 Vehicle crash barriers R L HANCHER 7 Oct 1971 [8 Oct 1970] 47814/70 Heading E1G A deformable crash barrier rail 11 comprises a series of end-to-end bars each formed as a rectangular sheet metal tube filled with adherent expanded plastics - e.g. expanded urethane, the bars being snugly supported in open slots in the faces of a series of concrete posts 10.
Patent GB-1329859-A (GB)
Title: Polymerisation process
IPC: C08F4/32
Filed: 1970-11-06
Abstract: 1329859 Initiators in addition polymerization processes MONSANTO CHEMICALS Ltd 6 Oct 1971 [6 Nov 1970] 52863/70 Heading C3P An initiating system for the polymerization of olefinically unsaturated monomers comprises a main initiator and, as a coinitiator which encourages the polymerization of substantially all the monomer, a compound of the formula in which each R is a C 1-4  alkyl group. The preferred compound is 1,1,4,4,7,7-hexamethylcyclo-4, 7-diperoxynonane. The main initiator is preferably of the free radical type such as a dialkyl or diacyl peroxide, cumene hydroperoxide, an alkyl perester, or an azodiisobutyronitrile or similar compound. Any monomer or monomer mixture may be polymerized, and the polymerization may be by any well known method. Bulk polymerization is preferred, at 85-220‹ C., especially where a prepolymer is formed in one vessel, and then subsequently transferred to further vessels until polymerization is complete. In the example styrene is bulk polymerized using ditertiary butyl peroxide and the above preferred compound. Other monomers specified are α-methylstyrene, vinyl toluene, methyl acrylate or methacrylate, vinyl chloride, acrylonitrile, methacrylonitrile, styrene/acrylonitrile, styrene/butadiene, or styrene/divinyl benzene. A graft polymer e.g. of styrene and acrylonitrile or polybutadiene, may also be produced.
Patent GB-1335663-A (GB)
Title: Flexible transmission couplings
IPC: F16D3/68
Filed: 1970-12-31
Abstract: 1335663 Resilient couplings DUNLOP HOLDINGS Ltd 31 Dec 1970 [8 Jan 1970] 895/70 Heading F2U In a flexible shaft coupling of the type in which precompressed resilient members 24, 25 are mounted between axial abutments 12, 13- 17 projecting alternately from flanges 10, 11 of the coupled shafts, the resilient members consist of bonded frusto-conical rubber discs 24, 25 and interleaved metal discs 34, with axial openings for the passage of tightening bolts 31. After the compressed units have been assembled in position the bolts 31 are released and withdrawn through openings provided in the abutments 12, 13-17.