baber/WOPTO huggingface dataset:
Patent GB-1122924-A (GB)
Title: Circuit arrangement for a centrally controlled exchange, serving in common a telephone and a teleprinting network
IPC: H04M11/06
Filed: 1966-09-08
Abstract: 1,122,924. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORP. 8 Sept., 1966 [14 Sept., 1965], No. 40127/66. Heading H4K. An exchange has one network A 1 , B 1  for setting up speech connections for telephone subscribers and has a second network A 2 , B 2  for setting up telegraph connections for teletypewriter substations, control circuits such as an identifier, translators, fee rate and dial pulse receiving circuits, being common to both circuits. Both telephone and teletypewriter substations may also have data sets and, to enable a data set in one network to reach a data set in the other network a coupling stage C is employed. The networks have ferreed crosspoints.
Patent GB-1008692-A (GB)
Title: Improvements in or relating to a soil cultivating implement
IPC: A01B19/04
Filed: 1962-02-02
Abstract: 1,008,692. Agricultural implements. C. VAN DER LELY N.V. Feb. 2, 1962 [Feb. 13, 1961; March 23, 1961], No. 40512/63. Divided out of 1,008,691. Heading AlB. The subject matter of this Specification is included in that of Specification 1,008,691 but the claims differ.
Patent GB-882049-A (GB)
Title: Improvements in and relating to polycarbonates
IPC: C08G64/06
Filed: 1959-12-02
Abstract: Copolycarbonates, free from a tendency to crystallize, are made by adding phosgene and resorcinol or hydroquinone to a solution of a (4,41-dihydroxydiphenyl)-alkane in an inert solvent and reacting the substances in the presence of an acid-binding agent; the fraction of the total amount of the phosgene which has been added at any given time during the addition being approximately the same as the fraction of the total amount of the resorcinol or hydroquinone which has been added.  Preferably reaction is effected in the presence of an antioxidant (e.g. sodium hydrosulphite, potassium sulphite or sodium- or potassium sulphide).  The inert solvent may be benzene, toluene, xylene, cyclohexane, methylcylohexane, chloroform, carbon tetrachloride, methyl acetate or methylene chloride and the acid-binding agent may be pyridine or an aqueous solution of lithium-, sodium-, potassium- or calcium hydroxide.  At the end of the addition, a quaternary ammonium compound is added and the reaction mixture stirred to effect further polymerization.  Then the polymer solution is washed with water, neutralized with acid, rewashed with water, coagulated with ethanol and finally filtered and dried.  In examples, the (4,41-dihydroxydiphenyl)-alkane used is bisphenol-A.  Specification 772,627 is referred to.
Patent GB-1100787-A (GB)
Title: Improvements in or relating to energy controlling devices for electric blankets
Inventor: PECK JOHN DANIEL
IPC: H01H37/14
Filed: 1965-09-25
Abstract: 1,100,787. Control of electric blankets. E. K. COLE Ltd. 26 July, 1966 [25 Sept., 1965], No. 40911/65. Heading H2H. A thermal switch 8 is moved by a manuallyoperated lever (not shown) to the position shown whereby an electric blanket element 9 is energized in series with the thermal switch heater 7 from the whole of a transformer secondary winding 1. After a determined time, say 1¢ hours, the switch 8 deflects to another contact, moving the lever with it, whereby the heater 7 is disconnected and the element 9 is energized from a lower voltage tap selectable by another switch 12. Inductor lamps 6, 13 may be provided. The thermal switch receives heat from the transformer hence the cool down time is dependent on the position of the switch 12.
Patent GB-1240030-A (GB)
Title: Improved anti-theft alarm system for motor vehicles
Inventor: DRAPER ERNEST WILLIAM
IPC: B60R25/10
Filed: 1969-08-19
Abstract: 1,240,030. Vehicle theft alarms. E. W. DRAPER. 19 Aug., 1969 [15 March. 1969], No. 41356/69. Heading G4N. A vehicle theft alarm includes a four or more positioned master control key switch, preferably a barrel switch whose contacts are closed in different switch positions in accordance with a scheme, e.g. that shown at the left-hand side of Fig. 1 where shaded blocks in a vertical strip represent closed contacts 2-8 for one switch position 0, 30, 60 or 90, so that in one position 90 an ignition circuit 12, 24, 15 is completed and in other positions 0 and 30 alarm circuits which include alarms 23, 26 and a relay 17 are primed. In the 30 position, relay coil 19 is energized to draw relay contact 18 into contact with the coil so that the alarm circuits are conditioned for the 0 position, where coil 19 is held energized through contact 18. The alarm circuits are then primed, and alarms 23, 26 may be actuated by the opening of a microswitch 21a-21z, or by disconnecting a main battery 10, by shorting the positive terminal of battery 10 to the positive side of ignition coil 13, or by blowing a fuse 24. A dry battery 27 powers the alarm circuit containing alarm 26. A timer 30 is provided. In an alternative embodiment for a commercial vehicle (Fig. 2, not shown) a switch with twelve positions 0, 30 ... 330 may be moved clockwise or anticlockwise from 0 to 90, but only clockwise from 180 to 360 (0). The key may be removed at 0, a position similar to that described above, and at 180, a "service alarm" position where the engine may be started and the alarms, powered by battery 27, are actuated by microswitch 21z guarding the rear door of the vehicle. A nullifying switch (Y) is provided in parallel with switch 21z. The engine may also be started at 90 and 270 where an alarm circuit, including a normally open switch (Z), guarding the rear door and a relay controlling the vehicle horn, is primed.
Patent GB-1282443-A (GB)
Title: P-n junction laser devices
Inventor: STRACK HANS A
IPC: H01S5/32
Filed: 1969-08-20
Abstract: 1282443 Semi-conductor lasers TEXAS INSTRUMENTS Inc 20 Aug 1969 [30 Dec 1968] 41530/69 Headings H1C and H1K [Also in Division C4] A semi-conductor laser, Fig. 4, comprises a cleaved body of N-type material, e.g. gallium arsenide, in which an acceptor dopant, e.g. zinc, is diffused to form parallel strip regions 16, 17, 18 of P-type material with the inner region 16 of lesser depth than the outer regions 17, 18, the inner region 16 forming a P-N junction, while the outer regions 17, 18 provide radiation intercepting regions for absorbing radiation emitted from the junction transverse to the emission output axis. The P-type regions are formed by the sequential deposition and selective etching of masking layers 12, 13, 14 and 15, Fig. 2, followed by diffusion at a temperature of about 925 C. in a ZnAs 2  + Ga 2 S 3  atmosphere. The masking layers 12, 13 are of phosphorusdoped silicon dioxide impervious to zinc, while the masking layers 14, 15 are both of silicon dioxide, the layer 15 being individual to the regions 17, 18 and therefore permitting deeper penetration of the zino dopant than at region 16 where the layers 14, 15 are superimposed. All the layers may be removed when diffusion is completed and replaced by a single layer of SiO 2 , a window for an electrode being provided. Both electrodes may consist of nickel-plated gold antimony alloy. Other semi-conductor materials disclosed are gallium antimonide, indium phosphide, indium arsenide, indium antimonide and mixed crystals, while suitable dopants are tin, tellurium, sulphur, germanium, silicon, cadmium and magnesium. Dopant concentration is in the range of about 5Î 10<SP>17</SP> to 5 Î 10<SP>18</SP> donor atoms per c.c. An alternative diffusion process involves the use of zinc alone and redistribution of the diffused zinc atoms by post-diffusion heat treatment.
Patent GB-1293796-A (GB)
Title: Adjustable support devices
Inventor: STANLEY FRANK
IPC: B23Q1/54
Filed: 1969-08-21
Abstract: 1293796 Welding by fusion WALTON & CO (WOLVERHAMPTON) Ltd6Aug 1970 [21 Aug 1969] 41656/69 Heading B3R An adjustable positioning support for welding comprises a base 11 having an inclined upright 14 and divergent feet 12, a housing 15 pivotably mounted on the base at 16 and movable in a vertical plane by an hydraulic jack 17 reacting on the base, an axle 19 journalled by bearings 21 in the housing 15, and a workpiece mounting arm 24 pivotably mounted at 25 on an extension 23 of the axle and movable with respect to the axle by an hydraulic jack 28 reacting on the extension 23. The arm 24 has a workpiece mounting adapter 26. The extension 23 is carried by a brake drum 22 which is welded to the axle and co-operates with a brake band 43. Hydraulic supply to the jacks is provided from a base-mounted pump manually operated by a handle 31. To allow continuous rotation of the axle without winding-up of hoses, the connections to the opposite sides of the piston of the jack 28 are made via pipes (not shown), a housing-mounted control valve having a lever 32, connectors 33, a rotary union 35-38 between a non-rotating block 34 and the axle 19, axle ducts 39, 40, connectors 41, 42 and flexible hoses (not shown). In operation a workpiece is positioned on (e.g. by a forklift truck), and secured to, the adapter 26, and the jack 28 is operated until the centre of gravity of the workpiece together with the axle mounted support members lies on the axle axis, so that the workpiece may be easily rotated by hand, the brake band 43 being applied to lock the workpiece in a particular rotational position. The workpiece height may be adjusted by the jack 17.
Patent GB-1376102-A (GB)
Title: Flicker assemblies for doal effects fires
IPC: F24C7/00
Filed: 1971-11-16
Abstract: 1376102 Imitation coal flicker device; lamps PRODUCTION TOOLS (OXFORD) Ltd 16 Nov 1971 [2 Sept 1970] 42008/70 Headings F4W and F4R A flicker unit for an imitation coal or log fire comprises a plastics base 4 carrying a pin 3 on which is mounted for rotation a mounting 9 having a jewelled bearing 12 and carrying a metal light deflector 1, the base 4 being carried by a snap connection on a bracket 5, having an arm 7 extending over the deflector to prevent it coming off the pin 3.
Patent GB-1494373-A (GB)
Title: Programmed calculator having operator prompting means
IPC: G06F15/02
Filed: 1975-10-14
Abstract: 1494373 Electronic calculators SPECIALIZED ELECTRONICS CORP 14 Oct 1975 [29 Oct 1974 17 March 1975] 42058/75 Heading G4A A self-powered stored program electronic keyoperated calculator contains a plurality of programs stored in a memory 110, a program selected by means of a key 24 sequencing through its various steps until a step is reached requiring the manual entry of data by means of keys 22, whereupon the operator is visually prompted in conversational language using data titles as to the nature of such required data entry, the calculated result being displayed at 28. The visual prompting may be by means of an array of lamps 23, one lamp being provided for each type of data entry and each having associated therewith a corresponding data title affixed to the calculator case. Alternatively the data titles may be displayed on an alpha-LED display, the calculated result being displayed on a numeric-LED display. In another embodiment, Figs. 3, 4 (not shown), the data titles and the calculated result are displayed on a common alphanumeric-LED display. The calculator may comprise an integrated circuit 100 used inter alia for processing operations, the circuit 100 operating via an interface 151 which sends an inhibiting signal to a program advance module 149 of a program sequence counter 146 of the memory 110 whenever a manual data entry is required. Sequencing of the memory 110 recommences following entry of data by means of the keys 22 via an enabling signal sent to the program advance module 149. The calculator may be powered by a battery which is preferably rechargeable. Programs may be provided for solving for any one of the quantities : time, distance and speed given the other two variables, and for solving the analogous equations for time, amount of fuel and rate of fuel consumption. Such programs may be used in aircraft navigation, and further programs may be provided for solving the wind triangle problem, true heading and ground speed being calculated in terms of true course, wind direction, wind speed and true air speed. An additional program may be provided to solve for wind direction and wind speed in terms of the other four variables. Programs may also be provided giving the effects of non-standard atmospheric conditions on true altitude, density and indicated air speed in terms of air temperature, pressure altitude, calibrated altitude and true air speed. Equations solved by the foregoing programs are given.
Patent GB-1530914-A (GB)
Title: Off-centre radar display circuit
IPC: G01S7/14
Filed: 1975-10-15
Abstract: 1530914 Radar displays; cathode ray tube displays SANDERS ASSOCIATES Inc 15 Oct 1975 [10 Feb 1975] 42270/75 Headings H4D and H4T A radar PPI display arrangement is described in which digital techniques are used to allow an operator to move the point 41 about which the radial trace beam 43 rotates to a point 42 remote from the centre of the radar viewing screen 40 and including movement off the screen without actually moving the display beam off the screen. A sweep signal generator 10 detects the location of the operator-positioned off-centre point from the settings of off-centre controls OC and is responsive to radar range scale RO and antenna position AZ signals to generate appropriate ramp deflection signals A in the proper time sequence to accurately display a selected portion, e.g. 47-48, of the plan position indication upon the entire area of the viewing screen. A beam control circuit 11 is responsive to the same signals as the signal generator and to a radar start pulse RS to determine the exact time the PPI display beam is to be turned on to display selected portions of the plan position indication. In this manner, the display beam is never deflected off the screen but is selectively blanked and unblanked and swept across the viewing screen to display the selected portion of the plan position indication upon the viewing screen as if the radar trace originated off the screen. The signal generator and control circuit cooperate such that when a target under study is in the middle of the screen when range scale is changed, the target will still be in the middle of the screen except that it will be expanded or contracted according to the range scale change.
Patent GB-965473-A (GB)
Title: Device comprising a generator and an electro-magnetic clutch for regulating the speed of a driven shaft
IPC: H02P29/00
Filed: 1961-11-28
Abstract: 965,473. Automatic speed control. MECCHI S.p.A. Nov. 28,1961 [Jan. 10, 1961], No. 42477/61. Heading G3R. [Also in Division F2] In a control system for maintaining constant the speed of a shaft driven by a driving shaft through an electromagnetic clutch the magnetising winding of the clutch is energized by the difference between a fixed voltage and a voltage derived from a tacho-generator associated with the driven shaft. As shown, an A.C. motor 1 drives a shaft 3 through an electromagnetic clutch 4 the magnetising winding of which is connected, over a contact d of switch 14, to a tacho-generator 17 driven by the shaft 3 and to a fixed voltage derived from a rectifier 10 fed from the motor supply circuit, the fixed voltage and the tachogenerator voltage being in series opposition. If the speed of the shaft 3 should decrease the tachogenerator voltage decreases and the voltage applied to the magnetising winding of the clutch increases. The amount of slip in the clutch therefore decreases, and the shaft speed is restored to its previous value. Similarly, when the speed of shaft 3 increases the amount of slip in the clutch automatically increases also, whereby the shaft speed tends to remain constant. The switch 14 has other contacts a, b, and c ganged with the contacts of a further switch 16 associated with an electromagnetic brake 15. In contact position a, a<SP>1</SP> the brake 15 is de-energized and clutch 4 is energized directly from rectifier 9 so that the motor drives shaft 3 with no slip in the clutch; in position b, b<SP>1</SP> clutch 4 is de-energized and brake 15 is energized to brake the shaft 3; in position c, c<SP>1</SP> both clutch and brake are de-energized and the shaft is free; in position d, d<SP>1</SP> brake 15 is de-energized and the clutch 4 is controlled as described above. The electrical connection between the generator 17 and the clutch 4 may include an amplifier, e.g. a transistor amplifier (Figs. 2 and 3 not shown). Specification 927,630 is referred to.
Patent GB-1314846-A (GB)
Title: Three-stage alkylation process
IPC: C07C2/62
Filed: 1971-09-13
Abstract: 1314846 Alkylating isoparaffins TEXACO DEVELOPMENT CORP 13 Sept 1971 [6 Oct 1970] 42512/71 Heading C5E A sulphuric acid alkylation process which comprises reacting olefin with alkylation catalyst acid in an absorber, separating the absorber reaction mixture into an absorber hydrocarbon phase and an absorber acid phase, passing said absorber hydrocarbon phase to an alkylation reaction zone, contacting said absorber acid phase with isoparaffin hydrocarbon solvent in an extractor, separating the components in said extractor into an extractor hydrocarbon phase and an extractor acid phase, treating said extractor hydrocarbon phase with strong sulphuric acid in an acid treater, separating the acid treater reaction mixture into a treater hydrocarbon phase and a treater acid phase, passing said treater hydrocarbon phase to said alkylation reaction zone, reacting dialkyl sulphates in said absorber hydrocarbon phase and said treater hydrocarbon phase with isoparaffin in said alkylation reaction zone in the presence of sulphuric acid alkylation catalyst, separating the alkylation reactor reaction mixture into an alkylation hydrocarbon phase and an alkylation catalyst acid phase, and passing the total separated alkylation catalyst phase to the adsorber. The isoparaffin solvent is the same as the isoparaffin being alkylated i.e. isobutane or isopentane. The olefin may contain 3 to 5 carbon atoms.
Patent GB-1156044-A (GB)
Title: Method of Plutonium Reduction.
IPC: G21C19/46
Filed: 1966-09-26
Abstract: 1,156,044. Plutonium reduction; processing spent nuclear fuel. GESELLSCHAFT FUER KERNFORSCHUNG m.b.H. 26 Sept., 1966 [9 Oct., 1965], No. 42794/66. Heading G6R. Pu (IV) is reduced to Pu (III) in aqueous or organic solution by the addition of a nitrite, the acid content of the final solution being below 0À5 M. When an organic solution containing Pu(IV) is contacted with an aqueous nitric acid solution containing sodium nitrite, the Pu is reduced and extracted into the aqueous phase. The organic solution may be a tributyl phosphate-hydrocarbon solution containing U and Pu obtained in the reprocessing of nuclear fuel. According to the concentration of nitric acid and sodium nitrite, U is either extracted with the Pu or remains behind in the organic phase. Addition of sodium nitrate improves the separation of Pu and U. If the acidity of the aqueous solution containing Pu (III) is increased to 1-3 M, oxidation back to Pu (IV) takes place.
Patent GB-1325109-A (GB)
Title: Combined button feeding and selecting device
IPC: B65G47/14
Filed: 1971-09-14
Abstract: 1325109 Feeding orientated buttons ENTERPRISE MACHINE & DEVELOPMENT CORP 14 Sept 1971 [17 Sept 1970] 42872/71 Headings B8A and B8S A button selecting device S adapted for use with buttons B having one flat side and a concave central portion is used in combination with a vibratory bowl feeder 10 having a spiral track 12 with a lower portion sloping outwardly and a discharge end portion 13 sloping inwardly towards the centre of the bowl. Two fence sections 14, 15 secured to the track prevent the buttons B from falling from the track. The button selector S is positioned between the fences 14, 15 and includes a removable track section 21 matching the track portion 13 and a selector gate 22 secured along its inner portion and extending above the section 21 a predetermined distance less than the thickness of the buttons B. One or more button raising pins 25 are incorporated in the track section 21 positioned inwardly from the gate 22 by a distance equal to the radius of the buttons B and extending upwardly by a predetermined amount. Buttons B with their flat sides down are lifted by the pin(s) 25 and fall over the gate 22 back into the centre of the bowl. However, buttons B with their concave sides down are not lifted sufficiently to clear the gate 22 and pass to a spring discharge shoot (16) of wound wire, Fig. 1 (not shown). The pin(s) 25 may be removed from the selector device whereupon it becomes suitable for buttons flat on one side with a bevelled edge on the other side, Fig. 7 (not shown).
Patent GB-1056435-A (GB)
Title: Improvements in or relating to travelling wave tubes
Inventor: WINWOOD JOHN MORLAND
IPC: H01J23/12
Filed: 1962-11-13
Abstract: 1,056,435. Caps and holders for thermionic valves. MULLARD Ltd. Nov. 12, 1963 [Nov. 13, 1962], No. 42900/62. Heading H2E. A plug and socket connector for a travelling wave tube comprises two contact carrying rings 10, 12 fixed, respectively, to tube mount member 9 and metal sleeve 4, the latter being secured to glass base 2 of the tube. Contacts 18 are connected to an electric power supply and contacts 19 to tube pins 20 and they may be of sliding side contact type or comprise plugs and pins. They are so spaced or the shaping of the annular members is such that the tube can only be inserted in one angular position. Cover 14 fits housing 3 with a bayonet action and holds the tube in place by the compression of spring 15 against end cap 13. The tube may be withdrawn fully by first separating the contacts and then rotating it to bring lug 16 out of registration with lug 17.
Patent GB-1172618-A (GB)
Title: Collapsible Steering Column Assembly for a Motor Vehicle
Inventor: SIDAWAY LESLIE GORDON
IPC: B62D1/19
Filed: 1967-09-22
Abstract: 1,172,618. Collapsible steering columns. FORD MOTOR CO. Ltd. 22 Sept., 1967, No. 43244/67. Heading B7H. In a collapsible steering column assembly for a motor vehicle, a steering shaft 9 carrying at one end a steering wheel 15 and adapted at the other for connection to steering mechanism is rotatably mounted in a steering column 1, the steering shaft 9 comprises two telescopically slidable sections 19, 23, the steering column 1 comprises two co-axial overlapping tubes 29, 31, and a plurality of balls 33 carried by the tube 29 project into an annular groove 37 in the tube 31 so that, when the wheel 15 in subjected to a severe impact, the tube 29 moves forwardly with the result that energy is absorbed by the balls 33 enlarging the groove 37. The balls 33 are located in recesses arranged around the tube 29 such that the balls cannot move circumferentially. The shaft sections 19, 23 are connected by rivets 25 which shear under the impact. The steering wheel hub 13 is fixed to an upper shaft section 11 connected to the shaft section 19 by a splined sleeve and journalled by a combined radial and thrust bearing 17 in the tube 11. The tube 31 is connected by a flange 3 to the vehicle floor 5 and by a bracket 7 to the dashpanel. The tube 31 may alternatively extend into the tube 29, the bracket 7 being attached to the tube 29 and being such as to yield under the impact.
Patent GB-868886-A (GB)
Title: Radiation energy comparison system
IPC: G01J3/42
Filed: 1959-12-21
Abstract: 868,886. Measuring electrically. PERKINELMER CORPORATION. Dec. 21, 1959 [Dec. 19, 1958], No. 43360/59. Class 40 (1). [Also in Group XL (b)] A signal dependent upon the position of an optical compensating wedge in a spectrophotometer is derived by mechanically coupling the wedge to a capacitor 59 in the grid circuit of an R.F. oscillator 49. The signal appears on a potentiometer 61 in the oscillator anode circuit