baber/WOPTO huggingface dataset:
Patent GB-1469409-A (GB)
Title: Synchronous self-shifting toothed clutch
IPC: F16D23/10
Filed: 1974-11-18
Abstract: 1469409 Ratchet clutches SSS PATENTS Ltd 18 Nov 1974 [16 Nov 1973] 53351/73 Heading F2C In a synchro self-shifting clutch wherein clutch engaging movement of an intermediate member 31 along helical splines 29 on one clutch member 28 to bring straight teeth 33 on the intermediate member 31 into precise interengagement with straight teeth 26 on another clutch member 25 is initiated by a pawl and ratchet mechanism 36, 46 between the clutch member 25 and either the intermediate member or an auxiliary member 42 helically splined to the intermediate member 31, one element, e.g. the ratchet wheel 36 of the pawl and ratchet mechanism is carried by a sleeve 34 helically splined to the clutch member 25 and prevented from moving axially relative to the intermediate member by a flange 48 fast with the intermediate member engaging a groove 47 in the sleeve 34. The pitches of the helical spline are such that during final clutch engagement the intermediate member 31 rotates relative to the sleeve 34 to relieve the pawls of load. On synchronism the pawl and ratchet mechanism 36, 46 rotates the auxiliary member 42 relative to the intermediate member 31 whereupon the auxiliary member 42 moves helically along the intermediate member to bring clutch teeth 35-45 on the sleeve 34 and auxiliary member 42 into engagement. Thereafter the intermediate member 31 rotates relative to the clutch member 28 and thus moves helically therealong to bring the clutch teeth 26, 33 into precise interengagement. In Fig. 1 (not shown) the auxiliary member 42 is omitted and the pawls are carried by the intermediate member.
Patent GB-1484289-A (GB)
Title: Steam turbines
IPC: F01D25/32
Filed: 1975-09-26
Abstract: 1484289 Steam turbines ENGLISH ELECTRIC CO LTD 26 Sept 1975 [10 Dec 1974] 53406/74 Heading FIT In a steam turbine comprising a fixed tip seal ring 6 surrounding rotor blades 4, water droplets are extracted from the steam via slots 7 formed in the ring 6 downstream of the blades and inclined at an angle of 20 degrees to 45 degrees with respect to the axis with the downstream end leading the upstream end in the direction of rotation of the rotor, the slots communicating with a drainage chamber 8. The slots may additionally be inclined radially. The chamber 8 is connected either to a collecting vessel 10 at the same pressure, to which the water drains under gravity, or to the steam space of a feed water heater. The vessel 10 may drain continuously or intermittently under the control of a water trap 11. Again, Fig. 4 (not shown), similar additional slots (12) are provided in the ring 6 upstream of the rotor blades and draining to an additional chamber (13) communicating with chamber 8 via channels (14) through which the drained water flows under gravity. Alternatively, Fig. 7, (not shown), the shrouds 5 are omitted from blades 4 and the drainage slots (17) extend from the downstream edge of the seal ring to a point on the ring immediately radially outwardly of the leading edges of the rotor blades.
Patent GB-1126036-A (GB)
Title: Multiplication device
IPC: G06J1/00
Filed: 1965-12-16
Abstract: 1,126,036. Hybrid multiplication arrangements. ROCHAR ELECTRONIQUE. 16 Dec., 1965 [4 Feb., 1965], No. 53494/65. Headings G4A and G4G. A multiplication device for providing an output quantity proportional to the product of a first quantity x in the form of a number X of pulses where X = kx and k is a constant, and a second quantity y in the form of an analogue voltage Y of constant sign where Y = ay and a is a constant, includes a pulse counter adapted to receive the X pulses, a numerical-to-analogue converter coupled to the counter in such a way as to convert numbers stored in the counter into an analogue signal at the output of the converter, the maximum output signal amplitude of the converter being at least equal to the maximum amplitude of the voltage Y, a binaryoutput amplitude comparator of which the first input is connected to the output of the converter and the second input is adapted to receive the voltage Y, a gate circuit having a command terminal to which the output of the comparator is connected and an input adapted to receive the X pulses, the arrangement being such that the gate is open to the pulses only while the voltage Y is greater than the output signal amplitude of the converter. In an arrangement as shown for obtaining an output proportional to the product of the first quantity x in the form of a number of pulses X available from a transducer 10 and a quantity y available at a transducer 18 in the form of an analogue voltage Z of constant sign where Z = ayb  and a and b are constants, the pulses X are applied to a counter 12 associated with a numerical-analogue converter 14 having a capacity of N units and a sensitivity of a volts per unit. The output of converter 14 and voltage Z are compared in a binary output amplitude comparator 16 and output of which controls an AND-gate 20 to which the pulses X are also applied in such a way that the gate opens cyclically whenever the voltage Z is greater than the output of the converter 14. The output of gate 20 is connected to a division stage 22 (coefficient m) whilst the pulses X are applied to another division stage (coefficient n). The outputs of the two division stages are connected to an OR-gate 28 which delivers a number of pulses proportional to the product x.y provided always that m/n = b/Na. A delay stage 24 is included so as to avoid coincidence of pulses at the input to OR gate 28. In a simplified device for cases where the quantity is available as a voltage in the form Y = ay, the desired output is taken directly from the output of the gate 20 (i.e. elements 22-28 are dispensed with). The result is approximate except where X is an integral multiple of N. Transducer 10 may, for example, be a flow meter and transducer 18 a density meter or temperature difference measuring device.
Patent GB-1198218-A (GB)
Title: Valve Tappet
Inventor: ABELL ROY FRANCIS JR
IPC: F01L1/14
Filed: 1968-11-12
Abstract: 1,198,218. Mechanical tappets. EATON YALE & TOWNE Inc. 12 Nov., 1968 [13 Nov., 1967], No. 53682/68. Heading F2K. In a mechanical valve tappet, e.g. for a V- eight I.C. engine, comprising a body member 30 abutting the cam (20), Fig. 1 (not shown), and a member 31 in the body member abutting a hollow push rod 33, play in the valve gear is provided by the member 31 which moves axially between a shoulder 42 and a spring ring 38 on the body member 30 and defines a gap 46 at the shoulder allowing lubricating oil to flow from a chamber 36 in the body to the hollow push rod 33 via the gap and the clearance 50 between the members 31 and 30 when the body 30 abuts the dwell portion (21) of the cam (20). When the cam rotates to lift the body 30, the gap is closed and the members 30, 31 abut to lift the push rod mechanically. Lubricating oil is delivered to the chamber 36 through a bore 35 from a pump. A circumferential groove 53 on the member 31 communicating with a radial bore 60, may be replaced by extending the radial bore across the full width of the member 31.
Patent GB-1326419-A (GB)
Title: Control arrangements for printing machines
IPC: B41L29/16
Filed: 1970-11-12
Abstract: 1326419 Rotary offset printing machines RICOH KK 12 Nov 1970 [3 Dec 1969] 53797/70 Heading B6C A rotary offset printing machine comprises means for inking the printing cylinder and timing means for controlling the operative period of the inking means and providing a first pulse at the end of the period. The machine also comprises means for feeding sheets to the impression cylinder, starting means for prbviding a second pulse to start operations of the feeding means and counting means for counting the number of copies fed by the feeding means and providing a third pulse when the number of copies equals the preset quantity. Means are also provided to produce a fifth pulse to temporarily halt operation of the printing means and checking means to create a fourth pulse in response to sensing a malfunction in the feeding of a copy sheet from the feeding means to the impression cylinder. A synchronizing pulse is produced each time the blanket cylinder passes through a predetermined angular position and a logic circuit control means allows the feeding means to operate in response to the first or second pulse only when a said synchronizing signal occurs and for halting the feeding means in response to the third, fourth or fifth pulses only when a synchronizing pulse occurs.
Patent GB-1164149-A (GB)
Title: Substituted Pyridazones, preparation thereof and use as Herbicides
IPC: C07D237/22
Filed: 1966-12-06
Abstract: 1,164,149. Herbicides containing pyridazones. BADISCHE ANILIN-& SODA-FABRIK A.G. 6 Dec., 1966 '[15 Dec., 1965], No. 54511/66. Heading A5E. [Also : in Division C2] Herbicides comprise " compounds of the formula:- where R' denotes a cycloalkyl radical, or a phenyl radical which may be substituted by methyl or halogen, - R<SP>2</SP> denotes halogen, R<SP>3</SP> denotes -COOR<SP>4</SP>, -COSR<SP>4</SP>, -CH 2 . CH 2 . COOR<SP>4</SP>, -CH=CH . COOR<SP>4</SP> or -CH 2 . C(C1)=C(C1) . COOR<SP>4</SP> where R<SP>4</SP> denotes an alkyl radical which may be substituted by hydroxy, chlorine, methoxy or dialkylamino, an alkenyl radical which may be substituted by chlorine, a phenyl radical which may be substituted by hydroxy, chlorine or bromine, a cycloalkyl radical which may be substituted by ethinyl or an aralkyl radical optionally in association with a solid or liquid carrier. They may be used in solution in a mineral oil, as an emulsion preferably formed in water from concentrates, pastes or wettable powders optionally containing a dispersing agent, as a suspension, or dust. The use of the herbicides to control the growth of numerous specified plants is described particularly for methyl and benzyl 4-[(1-phenyl-5-bromopyridazone-6)-yl] oxamates.
Patent GB-1204494-A (GB)
Title: Improvements in or relating to gaseous fuel burners and to methods of manufacturing such burners
Inventor: RADLEY STEWART ALBERT
IPC: F23D14/26
Filed: 1966-12-07
Abstract: 1,204,494. Gas burners. RADIATION Ltd. 6 March, 1968 [7 Dec., 1966], No. 54807/66. Heading F4T. A gas burner bar 1 has a longitudinal ridge 2, with side walls 3 and burner ports 4, forming an integral part of a fuel chamber 5 into which the side walls 3 extend and create side walls 6 and recesses 7, the walls 3 or walls 6 being pierced at intervals by orifices 8 of restricted size to provide retaining flames either side of the ridge 2. In an alternative arrangement only one side wall 3 extends into the chamber 5.
Patent GB-1436365-A (GB)
Title: Storage device for a portable domestic appliance
IPC: A47J45/02
Filed: 1973-11-27
Abstract: 1436365 Storage trays; brackets &c MOULINEX SA 27 Nov 1973 [30 Nov 1972] 54987/73 Headings A4A and A4B [Also in Division B8]  A storage device for a portable electric appliance comprises a tray 10 provided along one side thereof with a vertical flange (26), Fig. 3 (not shown) for placing the device on a wall, an elongate depression 12 to accommodate a casing of the appliance, and a frame 16 for winding an electric supply lead of the appliance on to the frame. As shown, the device is for an electric knife and U-shaped brackets 20 are provided to receive ends of a pair of separate knife-blades arranged parallel to the side 24. The frame 16 is defined by a flat region lying between slots 32 in side-ends of the tray. The lower edge 34 of the flange lies in the plane of the flat bottom 36 of the depression 12.
Patent GB-1321315-A (GB)
Title: Manufacture of gas electrodes for fuel cells
IPC: H01M4/88
Filed: 1970-11-20
Abstract: 1321315 Fuel cell electrodes COMPAGNIE GENERALE D'ELECTRICITE 20 Nov 1970 [21 Nov 1969] 55419/70 Heading H1B A gas electrode for a fuel cell is made by a process comprising forming an aqueous suspension of a fibrous compound capable of being carbonized, preferably a cellulosic compound, e.g. paper pulp, or a polyamide based compound; forming a suspension comprising a water-repellent agent, e.g. P.T.F.E., in a wetting agent, e.g. alkylphenoxypolyethoxyethanol, and mixing to - gether the two suspensions. The P.T.F.E. may be in the solid state in the form of granules of diameter 35 microns or may be in the form of an emulsion comprising grains of 0À3 microns in an aqueous solution of ammonia. Particles providing the catalytic and conductive properties of the electrode are added to the mixed suspensions, these particles may comprise acetylene black containing 8% by weight of silver. When the P.T.F.E. is in the form of an emulsion, acetone is now added to gelatinize the emulsion. This mixture is deposited as a layer on a liquid-permeable conductive support of the electrode. This support may comprise a thin plate of sintered nickel or of graphite gauze. The liquid is removed from the layer by subjecting the uncoated side of the support to a vacuum and by drying at 100‹ C. Finally, the electrode is heated at 380‹ C. under a nitrogen atmosphere containing hydrogen to produce carbonization of the fibrous compound whereby the porous volume of the layer is increased.
Patent GB-1167887-A (GB)
Title: Improvements in or relating to Chairs.
Inventor: HALL WILLIAM JOSEPH
IPC: A47C1/035
Filed: 1966-12-13
Abstract: 1,167,887. Seats. W. STEEL & CO. Ltd. 12 Dec., 1967 [13 Dec., 1966], No. 55882/66. Heading A4J. In a reclining chair, a leg-rest 17 is pivoted, at 20, to a plate 11, fixed to a stationary part of the chair, so that, on tilting the seat 4 and back-rest 2 into a reclining position, it is rotated through 180‹ into an operative position (Fig. 3, not shown). Lever 9 is pivoted, at 10, to plate 11, so that the end 12 drops into a nearly upright position to erect the legrest. The back-rest 2 is connected to the seat 4, by pivot 5 and is mounted, in the stationary part 1, by releasable pivot 3. Stops may be provided to terminate the movement of the leg-rest and it may be urged into the terminal positions by springs.
Patent GB-1457546-A (GB)
Title: Pharmaceutical preparations comprising cephalosporin derivatives
IPC: A61P31/04
Filed: 1973-12-06
Abstract: 1457546 Compositions containing cephalexin HOECHST AG 6 Dec 1973 [6 Dec 1972] 56631/73 Addition to 1451804 Heading A5B A mixture suitable for compressing into a tablet or pill comprises cephalexin and/or cephaloglycin in admixture with from 5 to 15% 'by weight based on the weight of the mixture of one or more pharmaceutically suitable carriers.
Patent GB-1411799-A (GB)
Title: Laminates of electrically conducting and insulating material
IPC: H05K3/02
Filed: 1972-12-08
Abstract: 1411799 Laminates FORTIN LAMINATING CORP 8 Dec 1972 56877/72 Heading B5N [Also in Division H1] A laminate is produced by coating a flexible carrier sheet on one side with a relatively thin layer of conductive material, e.g. copper, not exceeding 800 micro inches in thickness, assembling it with an insulating plastics base sheet with the conductive layer facing the surface of the plastics base sheet, bonding the conductive layer to the plastics base sheet with an adhesion greater than that between the conductive layer and the carrier and removing the carrier from the assembly. Bonding may be effected by the application of heat and pressure in a press, the plastics base sheet being initially not fully cured and the application of heat and pressure curing it and effecting bonding, or the plastics base sheet being intially fully cured and bonded to the conductive layer by interposed adhesive. The carrier may be coated with conductive material by chemical deposition by a first chemical deposition of a conducting layer 10- 50 microinches in thickness and a second electroplated deposition of a build-up layer to a total thickness of 100-700 microinches. Alternatively the conductive layer may be applied to the carrier by vacuum deposition. The carrier material which may have a roughened surface, may be a cellulose acetate or triacetate, nylon, polyester or polyimide film, or copper, brass, steel or stainless steel foil. The insulating plastics base sheet may comprise one or more layers of glass cloth impregnated with epoxy resin. A printed circuit may be produced from the laminate by selectively depositing electroplating resist on the thin conductive layer in a pattern corresponding to the negative of the desired printed circuit, electroplating additional conductive material on the exposed portions of the conducting surface, removing the resist and applying etchant to the entire surface to remove the remaining thin conductive layer. An etch-resistant metal may be deposited over the electroplated conductive material prior to removal of the resist.
Patent GB-1161003-A (GB)
Title: Improvements relating to Data Transmission Systems
Inventor: GALPIN ROBERT KEITH PORTWAY
IPC: H04L27/02
Filed: 1966-12-22
Abstract: 1,161,003. Digital transmission systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 12 Dec., 1967 [22 Dec., 1966], No. 57481/66. Heading H4P. Serial digital data is transmitted over a telephone line in the form of multi-amplitude signals on a number of channels, the signals in each channel being vestigial side-band. In the embodiment described serial data at bit-rate b is fed to a 3-bit shift register from which parallel signals are read out at rate b/3 to a coder which develops on two channels simultaneous signals, each having one of three amplitude levels. The signals on both channels pass via respective low-pass filters to modulators which develop vestigial side-band signals: one channel contains the upper side-band of one multi-level signal and has a carrier f 1 , and the other the lower side-band of the other signal and a carrier f 2 . At the receiver the signals in the two channels are demodulated and passed to a level-decision circuit which develops from its distorted input undistorted three level signals at rate b/3. These signals are converted to 3-bit parallel form and passed to a shift register which provides the original data at rate b. The receiver includes a digital circuit which generates clock signals under control of a signal f 2 -f 1  derived from the demodulators.
Patent GB-1418526-A (GB)
Title: Process for anti-icing characteristic of gasoline
IPC: C10L1/18
Filed: 1973-12-12
Abstract: 1418526 Anti-icing composition for gasoline E I DU PONT DE NEMOURS & CO 12 Dec 1973 57565/73 Heading C5G An anti-icing composition for gasoline comprises 30-99 wt. per cent of a gasoline soluble organic compound of the formula Z-OH containing 4-180 carbon atoms and 10-70 wt. per cent of a gasoline soluble dimer-trimer acid of a C 16 -C 18  unsaturated, aliphatic, monocarboxylic acid, Z-OH being selected from ROH, HOR<SP>1</SP>OH and R<SP>2</SP>(OR<SP>3</SP>) n OH wherein R is C 4-18  alkyl, R<SP>1</SP> is C 6-10  alkylene, R<SP>2</SP> is H, C 1-18  alkyl or C 1-12  alkyl(phenyl), R<SP>3</SP> is C 2-3  alkylene, n is an average value from 2 to 60 and any 2 adjacent OR<SP>3</SP> groups are the same or different. Many examples of the -ZOH compound are listed. The dimer-trimer acid is a mixture of dimer and trimer acid and may be substantially one or the other. The term is further defined as a composition containing at least 45 wt. per cent of the dimer and trimer acids. The dimertrimer acid may be dimerized-trimerized tall oil residues and dimerized-trimerized linoleic acid. In the example the use of dipropylene glycol; C 12-16  alkyl OH, 2,5-hexanediol; iso-octylphenyl/ethylene oxide addition product; and oxo-decyl alcohol is described. The composition may be added to the gasoline in an amount of 0À002 to 0À02 wt. per cent. Other additives to the gasoline may be tetraalkyl lead antiknock compounds, halogen-containing scavenging agents, corrosion inhibitors, dyes, antioxidants, anti-rust agents, ether anti-icing agents, gum inhibitors, metal deactivators, and anti-preignition agents.
Patent GB-1457740-A (GB)
Title: Timing circuits
IPC: G04F10/04
Filed: 1972-12-13
Abstract: 1457740 Electronic timer ELECTRICAL REMOTE CONTROL CO Ltd 13 Dec 1973 [13 Dec 1972] 57615/72 Heading G3T A timer (e.g. for control of accessories in an automobile) includes an integrated circuit module 1 Fig. 3 comprising a frequency divider-counter 5 and oscillator circuitry 2, passive impedance components e.g. R T , C T , R C  being selectively connectable via switches S 1 , S 2  and terminals 13, 14 to the oscillator circuitry 2 to form an oscillator. The oscillator output is fed to the divider 5 input via a timing and control logic circuit 3. The outputs of the last three stages of the divider are connectible to ground by switches, to reduce the overall time period defined at the output of the divider; or they may be connected to a de-coder (not shown) to give a count of eight which can be used to scan thermocouples or other detectors in succession. Outputs of the divider are fed via a D/A converter 7, 8, an amplifier 9 and a pin 8 to an elapsed time meter ME. A logic control circuit 3 receives timing signals from the divider 5 via a de-coder 10 and controls an output circuit 13 to provide complementary output signals A and A at terminals 3, 4 respectively. In Fig. 3 these outputs are selectable by wafers S3, S4 respectively. Thus depending upon the position of the selector switch, the frequency of the oscillator circuit clock signals to the divider is selected as well as the time periods defined by signals A, A. The outputs A, A are selectively used to energize a relay coil A via a transistor 36 and close relay contacts A1. This allows automatic timed control of various accessories in an automobile e.g. side lights 32, radio 30, wiper motor 27, head-lamps 23, hooter 25, instead of by their respective manual switches. In position 7 of the ganged switch a pick-up 35, responsive to rotation of the transmission shaft to supply pulses as a function of distance travelled, is connected by wafer S1 to control the oscillator 2; the meter 34 in response to the number of pulses received functions as a milometer.
Patent GB-1223551-A (GB)
Title: Improvements in power-assisted steering and like systems
Inventor: ADAMS FREDERICK JOHN
IPC: B62D5/22
Filed: 1966-12-28
Abstract: 1,223,551. Power-assisted steering. CAM GEARS Ltd. 28 Feb., 1968 [28 Dec., 1966], No. 57912/66. Heading B7H. [Also in Division G3]  In an hydraulic steering unit in which a servovalve is mounted coaxially of an input shaft 10 which is connected to a steering-wheel and to the spindle 3 of a pinion 2 or other input gear, the input shaft 10 and spindle 3 are interconnected by follower means 8 engaging a track 11B in one member and riding in a helical track 7 in the other member whereby on relative rotation of the spindle 3 and input shaft 10 the follower moves axially thereby operating a servo valve spool 16 disposed coaxially of and surrounding the input shaft 10. As shown, the follower means comprise pegs 8 which are mounted in an extension sleeve 18 of the valve spool 16 and engage axially directed slots 11B in a member 11 secured to the input shaft 10. The neutral position of the valve is adjustable by screwing the sleeve 5 which mounts a thrust bearing 4 supporting the spindle 3, into or out of the steering gear housing 6.
Patent GB-1369086-A (GB)
Title: Assembly of electrical conductors to hermetically sealed motor  compressors for refrigeration
IPC: H02K11/00
Filed: 1972-11-27
Abstract: 1369086 Terminal boxes LEC REFRIGERATION Ltd 27 Nov 1972 [15 Dec 1971] 58181/71 Heading H2E A terminal box for making connections to a refrigerator motor-compressor unit comprises a plastics base 1 having screwed thereto four terminals 2, 3, 4, 5 and a double cable clamp 11 for securing incoming power and control cables. The base 1 is clipped on a support bracket 15 spot-welded to the motor-compressor unit 17 and having flanges 18 to protect a three-pin plug on the unit (not shown) which projects through an aperture in the base. The incoming wires are looped under washers 8 and the arms 9, 10 are used to'make further connections by means of snap-on connectors. A sub-assembly comprising a motor protection relay and three-pin socket is plugged on to the three-pin plug so as to rest against chamfered projections 27 and all parts are held in place by a cover 25 and a spring clip 24 which engages holes 22 in the bracket 15.