baber/WOPTO huggingface dataset:
Patent GB-977806-A (GB)
Title: A linear pulse width modulator
Inventor: CORNEY JAMES VICTOR
IPC: H03K7/08
Filed: 1962-06-13
Abstract: 977,806. Pulse modulation circuits; semi-conductor circuits. FERGUSON RADIO CORPORATION Ltd. June 5, 1963 [June 13, 1962], No. 22795/62. Headings H3T and H4L. [Also in Division G3] A pulse width modulator comprises a pulse generator 10, Fig. 1, having a capacitor which is charged (or discharged) by each of a succession of clock pulses and thereafter discharges (or charges) at a rate determined by the difference between the modulating voltage and a negative feedback voltage derived by smoothing the output pulses produced by the pulse generator 10 in a low-pass filter 18 and supplying the two voltages to a comparator 14. In one embodiment, Fig. 2, the pulse generator comprises a transistor VT1 and the output signal is supplied via an emitter-follower VT2, a diode D3 preventing reverse biasing of VT2. Narrow, positive-going clock pulses are supplied via capacitor C1 so that at each clock pulse capacitor C2 is charged from capacitor C1 via diode D2 causing transistor VT1 to cut off. At the end of a clock pulse diode D2 is reverse-biased and C1 recharges via diode D1. C2 is discharged slowly during each clock pulse period via transistor VT3 (the voltage comparator) until transistor VT1 conducts again, the discharge time of C2 being dependent on the voltage fed to the emitter via the low-pass filter 18 and the modulating potential applied to the base of the transistor. In a modification, Fig. 3, in which corresponding components have references as in Fig. 2 a transistor VT4 co-operates with transistor VT3 to form a long-tailed pair with a common resistor R6 returned to a potential -V2 more negative than the supply -V1, the modulating signal being applied to the base of VT3 as before. Diodes D4, D5, D6 limit bottoming in VT3 to reduce the effects of excess carrier storage and R5 allows VT3 to operate at a collector current well above its thermally dependent leakage component. Sinusoidal or square wave clock signals are supplied via an inverter-squarer VT5 in which D8, R6 and R7 limit saturation. VT5 is caused to be alternately conducting and non-conducting by the application of the clock signal and when it conducts D9 conducts so that capacitor C6 discharges and causes transistor VT6 to conduct. When VT6 conducts capacitor C1 charges capacitor C2 via D2 and transistor VT1 is reverse-biased. When transistor VT5 bottoms, current in C6 and VT6 ceases, C1 re-charges to -V1 volts through R10 and diode D1 and is discharged slowly by transistor VT3 defining the duration of the negative-going output pulse. When VT5 is driven " off " by the clock signal diode D9 disconnects C6 from the collector of transistor VT5. Capacitor C6 recharges to - V1 volts through diode D10 and resistor R9. The system may be used for data transmission and recording and also may be used for D.C. voltage regulators or controllers (see Division G3). Specification 790,941 is referred to.
Patent GB-798502-A (GB)
Title: Improvements in fluidised chemical processes and apparatus therefor
IPC: F23H11/10
Filed: 1954-10-12
Abstract: In fluidized reactions in which agglomerates are formed, said agglomerates, but not the fluidized particles, are removed mechanically through a surface formed below the top surface of the bed by a limited "counter-pressure" <PICT:0798502/III/1> acting on said bed.  A suitable reactor comprises a grating upon which the fluidized bed is supported and which passes out of an opening through a side wall of the reactor below the level of the fluidized bed, means being provided at the outlet for producing the limited counter pressure.  By "counter-pressure" is meant either a gas pressure (illustrated by Fig. 1, not shown), or a pressure obtained mechanically, e.g. by a roller, or a combination thereof (as in Fig. 3).  In the latter Figure, a fluidized bed 41 maintained by means of wind boxes 43 is supported on an endless grating 45.  Agglomerates falling on to the grating are carried to an opening 46 and meet roller 35 which is vertically movable and permits removal of the agglomerates, whilst fluidized particles remain in the reactor.  An enclosure 38 has a gas pressure maintained therein to assist in preventing the fluidized particles from being extracted.  S is a water-seal.  By reduction of the gas fed from the rear wind-boxes a slope 51 of unfluidized material may be built up; the effective area of the grate may thus be reduced.  Also if the grating is spaced from the lateral walls of the reactor, similar non-fluidized slopes are formed.  These walls can be cooled.  In a second embodiment the roller is omitted and a surface obtained through which the agglomerates are extracted solely by means of the counter-pressure of gas within the enclosure.  A damper R is provided to adjust an orifice in the reactor wall 40.  The roller may be replaced by a vertically movable shutter.  In a further embodiment the grating is circular and rotates about a vertical axis; the end walls of the reactor are then parallel to the radii of the grating at the location of entry and exit.  The roller can be replaced by a truncated cone in this case.
Patent GB-359583-A (GB)
Title: Improvements in or relating to the manufacture of golf balls or the like
IPC: B29D99/00
Filed: 1930-07-29
Abstract: In a method of manufacturing golf balls or the like of the kind embodying a core and an outer shell of guttapercha, balata, rubber or similar vegetable resin, a layer or successive layers of aqueous emulsions or dispersions such as those specified below are applied to the core by dipping, painting, spraying, moulding or electrophoresis so as to produce an outer shell of suitable thickness and thereafter moulding the ball in order to impart to it the desired shape and surface marking.  According to one method, aqueous dispersions of guttapercha, 40 per cent, prepared according to Specification 296,685, [Class 81 (i), Disinfecting &c.], and of titanium white, 50 per cent, are mixed with rubber latex (concentration 60 per cent) and the mixture is painted on to a rubber-wound core, dried in warm air, the painting operation being repeated and the ball moulded and painted in the usual manner.  In a further example, 75 parts by weight of disintegrated guttapercha are stirred into a mixture of rubber latex and titanium white dispersion (giving 25 and 5 parts by weight of rubber and titanium white respectively), together with lime until a crumb is obtained.  The wet crumb is pressed round a rubber core, dried in warm air or in a porous mould and finally moulded and painted.  Usual compounding ingredients may be added to the dispersions.  The emulsions or dispersions, whether of a fine or coarse type, may be converted into stiff froths to reduce their fluidity and thus facilitate manipulation.  Specifications 219,635, 290,313, 324,375, [all in Class 70, Indiarubber &c.], and 343,921 also are referred to.
Patent GB-1254094-A (GB)
Title: Data communication systems
IPC: G06F13/42
Filed: 1970-05-12
Abstract: 1,254,094. Computer input/output. INTERNATIONAL BUSINESS MACHINES CORP. 12 May, 1970 [27 June, 1969], No. 22818/70. Heading G4A. In a data communication system, an interface interconnecting terminals has two interdependent interlock systems controlling transmission of discrete units of data. As described, a computer input/output (I/O) channel unit is connected to an I/O device control unit. After an initial selection sequence to select an I/O device as in Specification 1,108,806 (referred to), a byte may be output (written) by the control unit raising a "service in " tag line, to which the channel unit responds by placing the byte on a " bus out " and raising a " service out " tag line, to which the control unit responds by accepting the byte, raising a " data in " tag line and dropping " service in." The channel unit responds by dropping " service out," placing the next byte on " bus out " and raising a " data out " tag line to which the control unit responds by accepting the byte, raising " service in " and dropping " data in." The fall of " data in " causes " data out " to fall. And so on for subsequent bytes. Alternatively, bytes may be input (read), after the initial selection sequence, by the control unit applying byte to a " bus in " and raising " service in " to which the channel unit responds by accepting - the byte and raising " service out " to which the control unit responds by raising "data in," applying the next byte to " bus in " and dropping " service in." The channel unit responds by dropping " service out," accepting the byte and raising " data out " to which the control unit responds by applying a byte, raising " service in " and dropping "data in." And so on for subsequent bytes. The " data in " and " data out " tag lines can also be used in conjunction with the other tag lines (besides " service in " and " service out ") in- Specification 1,108,806 so that the bytes transferred may be data proper, I/O device addresses, commands and orders, and status and sense information, in each case with double the byte transmission rate of Specification 1,108,806.
Patent GB-997144-A (GB)
Title: Improvements in or relating to electrode protection for magnetohydrodynamic generators
IPC: H02K44/10
Filed: 1963-06-07
Abstract: 997,144. Generators operating by electromagnetic interaction with fluids. WESTING- HOUSE ELECTRIC CORPORATION. June 7, 1963 [July 13, 1962], No. 22838/63. Heading H2A. Oxidation of the electrodes by the hot thermally ionized working fluid in a magnetohydrodynamic generator is prevented by feeding into the duct upstream of the electrodes sufficient carbonaceous material to render the working fluid adjacent the electrodes reducing. Carbon, in the form of graphite blocks 34, 36 disposed upstream of the electrodes, is oxidized by the working fluid to produce a protective layer of carbon monoxide gas which serves to protect electrodes 14, 16, 22, 24 . . ., from oxidation but still provides a conductive path to the electrodes at the operating temperature. In modifications the carbon may be in the form of graphite rods which are progressively advanced through tubes into the duct alternatively pulverized graphite or a carbon producing liquid e.g. benzine, may be used. It is also possible to add further seeding material to the boundary layer with the carbon compound. The walls 30 of the duct are of insulating material such as magnesium or zirconium oxide. The electrodes may be of graphite, tungsten, tantalum or other refractory metal.
Patent GB-643491-A (GB)
Title: Improvements in or relating to rotary cutting means for paper card and the like
IPC: B26D1/62
Filed: 1947-08-18
Abstract: 643,491. Rotary cutting-machines. BATTERSBY, J. E., and MASSON SCOTT & CO., Ltd. Aug. 18, 1947, No. 22849. [Class 31 (i)] In a rotary cutting-machine of the kind in which a paper or like web is cut into sheets by a rotary knife co-operating with a fixed blade 2, the rotary knife being spirally mounted so that the web is progressively severed across its width, the cutting means are adjustably mounted to vary the inclination of the cutter with respect to the web path and the axis of adjustment is disposed to one side of the rotary knife axis and in or near a plane passing through the line of the progressive cut, the rotary knife being driven by pulley and belt or rope means with the pulley centres in or near the axis of adjustment. The rotary knife is carried by a rotary drum 1 mounted on a shaft 8 running in end bearings 3 and driven through a coupling 10 and worm gear 15 the driving shaft 11 of which is horizontal and at right angles to the shaft 8. Shaft 11 carries a pulley 12 having a multi-vee-groove and connected to a similar lower pulley by vee-section belts. To vary the speed of the rotary knife, the lower pulley may be driven through an infinitely variable gear or the vee-pulleys themselves may be variable as to diameter. The bearings 3, the fixed knife 2, and the drum 1 and its driving mechanism are carried by a frame 4 having a bracket 6 pivoted on a pin 7, this pin being carried in a bracket bolted to the main framework 5.
Patent GB-1004687-A (GB)
Title: Improvements in and relating to railway vehicle coupling systems
IPC: B61G9/22
Filed: 1962-06-14
Abstract: 1,004,687. Transitional coupling devices for railway vehicles. MASCHINENFABRIK AUGSBURG - NURNBERG A.G. June 14, 1962 [July 1, 1961], No. 22871/62. Heading B7T. A transitional coupling device comprises a cross-head 1, Figs. 1, 2, bridging side buffers, a central buffer coupler 13, a draw-bar 14 mounting force transmitting members 16, 23, the latter one of which projects into recesses 24 in plates 17, 18 connected together by bolts 19, a pull rod 15 having a flange 22 engaging a circular track 20, and pull rods 8 connecting the cross-head with the plates 17, 18 and having bearings 9, see also Fig. 3 (not shown). In operation, thrust forces acting on the buffer coupling 13 are also transmitted to the side buffers. Fig. 4 shows a modification of the device the cross-head comprising separate members 30 pivotally movable about vertical pins 32.
Patent GB-1015776-A (GB)
Title: Seat structure
IPC: B60N2/34
Filed: 1963-06-07
Abstract: 1,015,776. Vehicle seats. COX OF WATFORD Ltd., and R. S. NICKERSON. June 5, 1964 [June 7, 1963], No. 22874/63. Heading A4J. A vehicle seat comprising a back frame 5 pivoted to a seat supporting base frame 1 and a link, which is coupled between frames 1 and 5 at points spaced from the pivotal axis of the latter and has a leg-like extension 7, is movable from a seating position, Fig. 1, in which the base frame 1 slopes down to the rear to a reclining position, Fig. 2, (not shown) in which the back frame 5 and the base frame are supported in a more horizontal position by the leg-like extension 7. To move the seat, the base frame 1 is tilted about pivots 9 and the back frame 5 and extension 7 pivoted rearwards so that pins 10 on extentions 7 are moved to and fro along slots in brackets 4 until the reclining position is reached. The seat may be slidably mounted on the floor. The brackets 4 may be replaced by members 36, Fig. 6, pivoted to a base frame 21 and back frame 29 about pivots 30, and having closed racks 37 engaged by spring loaded pegs 39 which by engaging different slots may adjust the inclination of the back frame 29. The fore and after adjustment of the seat may be altered by adjusting a peg 28 in a spring loaded rack 26.
Patent GB-886620-A (GB)
Title: 6, 16-dimethyl steroids
Inventor: KIRK DAVID NEVILLE
IPC: C07J75/00
Filed: 1959-08-28
Abstract: The invention comprises 3b -hydroxy- and 3b -acyloxy-6 : 16-dimethyl-16a  : 17a -epoxypregn-5-en-20-ones (wherein the acyl group contains at most 6 carbon atoms) and their preparation by oxidizing with an alkaline peroxidizing agent 3b -hydroxy- or a 3b -acyloxy-6 : 16-dimethylpregna-5 : 16-dien-20-one and, if desired, acylating the 3b -hydroxy-16a  : 17a -epoxide so formed. An example is given.  Specification 850,423 also is referred to.
Patent GB-1388180-A (GB)
Title: Acetals
IPC: A61P31/04
Filed: 1972-11-30
Abstract: 1388180 Benzodioxoles F HOFFMANN-LA ROCHE & CO AG 30 Nov 1972 [1 Dec 1971] 22892/74 Divided out of 1388178 Heading C2C Compounds of the general Formula (I) (R = C 1-7  alkoxy; R 1  = C 1-7  alkyl) are prepared by the following route (R 2 =C 1-7  alkyl).
Patent GB-332068-A (GB)
Title: Improvements in and relating to domestic and similar water heaters
IPC: F24H1/20
Filed: 1929-07-25
Abstract: 332,068. Duff, W. A. July 25, 1929. lnternally-fired boilers; wafer supply and delivery. -In a water heater consisting of a vertical coil or pipe e within a flue f surrounded by an annular water-jacket g and connected at its lower end to a shallow pan disposed over a burner, the upper end of the coil being connected to the water jacket at the point e<1> and the lower portion of the water jacket being connected to the pan, two independent draw-off, outlets p and s are provided; the, outlets s draws water from the rapidly heated region near the end e<1> of the coil through the pipe n, and the outlet p draws water from the middle or bottom of the jacket. The pan arrangement may consist of a number of pans arranged one above the other (two a and b are shown) and provided with communicating passages c, the bottom pan having a central orifice, b<1> for the flame from the burner.
Patent GB-480273-A (GB)
Title: Improvements in aeroplane spars and other members
IPC: B64C1/06
Filed: 1936-08-20
Abstract: 480,273. Aeroplane structural elements. A.T.S. CO., Ltd., and NORTH, J. D. Aug. 20, 1936, No. 22966. [Class 4] Aeroplane spars and like members comprising longitudinally extending booms and transversely corrugated webs which are directly secured to one surface only of the boom through those surfaces of the web corrugations which lie in contact with that surface of the boom, have the webs stiffened to resist shear by one or more stiff members secured to them across the corrugations and along lines extending between and in the same general direction as the booms. As shown, a web A which may be of any of the forms shown in Figs. 3, 4 and 5, is secured to flat side faces F of booms B, C by rivets, screws or spot welds J, Fig. 2, and is stiffened by Z-section members D, E arranged parallel to booms B, C, respectively. In a tapering spar one of the stiffeners will be interrupted at the point where it approaches the other. The web material may be high tensile aluminium alloy, the depth d of the web corrugations not exceeding twenty times the thickness of the web metal. The depth of the stiffeners normal to the web is at least twice the depth of the web corrugations. Dimensions are given in the Provisional Specification.
Patent GB-203175-A (GB)
Title: Improvements in and relating to methods of cappeling wire ropes
IPC: B21K23/00
Filed: 1922-08-24
Abstract: 203,175. Richards, S. W. Aug. 24, 1922. Capping. - A bar D of iron or steel in pressed or forged so as to have a cylindrical medial portion and ends which are concave semi-cones. The bar is then bent around a block or mould so that the ends are juxtaposed, and a length of cold drawn weldless steel tube is shrunk over the ends which are then rivetted back to form a lip. Alternatively, after bending the bar, the lip is formed and the bar is placed in a mould whereupon molten metal is run in to cast a sleeve' around the ends.
Patent GB-583711-A (GB)
Title: An aeronautical game apparatus
IPC: A63H27/04
Filed: 1944-11-20
Abstract: 583,711. Toys. WALLACE, C. Nov. 20, 1944, No. 23051. [Class 132 (iii)] An aeronautical game of the type in which a suspended aircraft is kept flying around at a distance from a pivotal point comprises an aircraft g which can be wholly or partly removed from its points of support q' by means of a toy pistol, and such that the parts do not become completely detached and fall to the floor. As shown in Fig. 1 a rotating arm d is pivotally mounted on a block e freely rotatable on a rod c fixed to a post a. Attached to the rod d is a crosspiece o through which pass two cords p which support a plate q fitted with lugs q' on which rest two bent over rods r from which the plane is suspended. The plane is also attached to the plate q by means of a short piece of cord r' so that when successfully shot at the plane will not fall to the floor. The arm d has a loop k through which a cord may be attached so that the arm d may be rotated. A second plane j intended to act as a counter-balance may be suspended from an arm h which can be removably attached to the arm d.
Patent GB-1450359-A (GB)
Title: Electrical connector strip
IPC: H01R12/73
Filed: 1974-05-23
Abstract: 1450359 Two-part coupling ITT INDUSTRIES Inc 23 May 1974 [5 June 1973] 23103/74 Heading H2E  A connector strip comprises connectors 1 defining double-ended sockets with pin extensions 8, the sockets being housed in a two-part insulating body giving access to the sockets from opposite directions for insertion of connection pins. The connectors are formed by stamping and bending to have opposing spring fingers 9 which engage connection pins attached, for example, to a printed circuit board (Figs. 5 and 6, not shown). The connectors 1 are held in base 14 on surfaces 18 separated by indents 17 and flanked by posts 19. Channels 21 accommodate any bent-over shanks 7 and pins 8. The cover 15, formed to mate with base 14 and having bevelled entries 24, may be fixed to the base by glueing or ultrasonic welding. Grooves 26 are above hollows in the base flanked by walls 27 (Fig. 4, not shown) and it is stated that shorter lengths of the strip can be broken off at grooves 26. The connectors 1 may be used with pins 8 perpendicular to member 5 or parallel thereto, with one of the pins removed (Fig. 5, not shown) as an option. The base and cover are of mouldings of insulating plastics material. (For Figures see next column.)
Patent GB-1392412-A (GB)
Title: Conduit made up of at least two layers and especially intended for transport of combustible media
IPC: F16L11/00
Filed: 1973-05-15
Abstract: 1392412 Fire protected hose VOLVO PENTA AB 15 May 1973 [23 May 1972] 23163/73 Heading F2P A conduit for transmitting combustible media has an inner layer 2 including an expandable polymer and an outer layer 1 which is pressure and temperature resistant so that at a certain temperature the polymer expands to block the bore of the conduit. In one embodiment, as shown, the conduit also has a supporting layer 4 and an insulating layer 5, e.g. of polyamide, to prevent contact of the flow media with the polymer. In another arrangement, there are two layers only (Fig. 1, not shown) and in a further arrangement a wire reinforcement layer (1) (Fig. 3, not shown) separates the two layers and acts as an earth connection and static discharger, a pressure barrier around the expandable layer and also carries heat from a fire zone along the conduit so that a greater length of the inner layer will expand to block the flow. The inner layer 2 includes an agent which produces gas at an elevated temperature. This layer may comprise unvulcanized epichlorhydrine rubber mixed with the expansion agent. The outer layer 4 is of the same rubber with a fire resistant additive or is of braided wire, e.g. of metal, wire strips, asbestos cloth or cord, textile fabric or thread or fibre glass. In another arrangement, the polymer is polyurethane separated from a layer of isocyanate material by a layer which melts allowing the layers to come into contact.
Patent GB-277025-A (GB)
Title: Method of and means for determining the amount of a constituent in a mixture, more particularly of gases
IPC: G01N21/3504
Filed: 1927-09-03
Abstract: 277,025. Siemens & Halske Akt.-Ges. Sept. 4, 1926, [Convention date]. Gas analysis; testing and estimating. - In a method of and means for estimating one constituent of a gas mixture wherein heat rays, preferably the infra red, are allowed to fall on two bolometers after passing through chambers containing the gas mixture and other gases, in front of one of the resistances is placed a. chamber containing a sample of the gas to be determined, and in front of the other, a chamber containing a non-absorbent gas, such as air. Between these chambers and the source of heat is placed a third chamber containing the gas mixture to be tested. In the form shown in Fig. 1, heat is radiated from a porcelain plate 1 carrying an electrically heated wire 2, there being arranged between this and the bolometers 8, 9, three chambers 5, 7, 6 containing respectively the gas mixture, a non- absorbent gas such as air, and the gas, say carbon dioxide, which it is required to estimate in the mixture. The bolometers 8, 9 are arranged with resistances 10, 11 and a galvanometer 13 to form a Wheatstone bridge. In a modification, in order to remove errors due to heat conduction by the gases, the chamber 7 contains the same gas as the chamber 6 but under reduced pressure. The method may be applied to measuring the absorption of liquids and solids, and for the determination of a constituent in liquid or solid mixture, for example, the percentage of calcium in a glass.