baber/WOPTO huggingface dataset:
Patent GB-538775-A (GB)
Title: Improvements in or relating to the modulation of high frequency currents
IPC: H03C3/04
Filed: 1940-03-09
Abstract: 538,775. Cathode-ray tubes ; photo-electric function generators; valve modulating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 9, 1940, No. 4453. Convention date, March 10, 1939. [Classes 39 (i), 40 (iii) and 40 (v)] An arrangement for phase or frequency modulation comprises a source 1, Fig. 5, of carrier frequency, a phase-shifter 10 for producing a number of voltages of the same frequency displaced in phase by like amounts, a corresponding number of amplifiers T 1 ...T 4  for supplying energy in different phases to a common load circuit, and means for varying the amplification of the amplifiers by voltages characteristic of the modulating voltages and having their phases progressively displaced. These voltages may be derived from photo-electric cells or from a cathode-ray tube with interconnected sets of contacts. In the photo-electric arrangement shown in Figs. 3a, b, c, for producing voltages Œ K cos a E and Œ K sin a E, a sheet of light from lamp L is reflected by a mirror M, controlled by the modulating voltage, upon a divided reflector R, the parts R 1 , R 2  of which reflect light upon the cells P 1 , P 2  connected as shown in Fig. 3b. The parts R 1 , R 2  of the reflector each have reflecting surfaces shown white in Fig. 3c so shaped and displaced that as the sheet of light is moved by the mirror M over the reflector, currents represented by Œ K cos a E and Œ sin a E are produced in the output circuits of the cells. In the cathode-ray tube arrangement shown in Figs. 6a, b, c, the ray moves oyer two sets of contacts 62, 621, the contacts of each set being connected alternately and to the ends of resistances 65, and the contacts of one set 62 being displaced relatively to those in the other set. The beam is moved up and down along the contacts by the modulating voltage E and is also deflected across the targets so as to fall on both sets by a super-audible voltage 69 which may be filtered from the output. Output voltages of Œ K cos a E and Œ K sin a E are obtained from contacts 62, 621 respectively.
Patent GB-688374-A (GB)
Title: Improvements in or relating to dielectric antennae
IPC: H01Q19/06
Filed: 1949-02-18
Abstract: 688,374. Aerials. OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AERONAUTIQUES. Feb. 18, 1949 [Sept. 2, 1948], No. 4520/49. Class 40 (vii). A dielectric antenna for use at very high radio frequencies comprises a body of dielectric material having the form of a circular sector of a volume of revolution whose material thickness measured in a direction parallel to the axis of revolution is small compared with the overall dimensions in a plane perpendicular to the said axis, said body having means to connect it to a transmitter or receiver, the directivity being substantially constant in all planes containing the revolution axis of the antenna and lying within the angle of the sector. A block 1 of insulating material such as polythene or polystyrene has the shape of a sector of a body of revolution about axis XX, the upper and lower surfaces 2 and 3 being plane and perpendicular to axis XX. The thickness between surfaces 2 and 3 is small compared with the radial dimensions of the body which extends over an angle of some 270 degrees and is limited angularly by plane surfaces 9 and 10 which may be metal-coated to act as reflectors. A coaxial transmission cable 6 is led into a recess 5 on axis XX, and the inner conductor is formed into a loop 7 to energize the antenna. In the Figure the loop is shown withdrawn from the recess for clarity. Radiation is concentrated in a plane perpendicular to axis XX and extending for an angle corresponding to the sector (about 270 degrees). For maximum directivity the thickness E is made substantially equal to where # is the wavelength in vacuo and e is the dielectric constant of the material. In the modification of Fig. 2 (not shown), the surfaces 2 and 3 are shallow cones, having their apexes outwards to provide better matching to space but with some loss of directivity. In Fig. 3 (not shown), the surfaces 2 and 3 again comprise cones but with their apexes in the same direction, giving a directivity pattern in the form of a sector of a hollow cone having axis XX and a vertical angle lying between the vertical angles of the two conical surfaces 2 and 3. The embodiment of Fig. 4 (not shown), is similar to that of Fig. 1, but the surface 2 is coated with a metal reflector having a central aperture for the feeder cable and gives a conical sector directivity pattern having axis XX and sides directed slightly away from the reflecting surface 2. Fig. 6 (not shown) utilizes two antennµ as in Fig. 1 but each limited to 180 degrees, attached respectively to the leading and trailing edges of an aircraft wing to give omnidirectional directivity in a horizontal plane, while Figs. 7 and 8 (not shown) each comprise one such antenna below an aircraft wing to give downwards and fore-and-aft or transverse directivity, respectively, in a vertical plane. The antennµ may be used for transmission or reception, and may be combined with known non-directional aerials or reflectors of known construction to vary their directivity patterns.
Patent GB-1439742-A (GB)
Title: Live influenza type b virus vaccines and preparation thereof
IPC: C12N7/00
Filed: 1975-02-03
Abstract: 1439742 Nasal influenza vaccine RECHERCHE ET INDUSTRIE THERAPEUTIQUES 3 Feb 1975 [4 Feb 1974] 4535/75 Heading A5B A live influenza virus vaccine suitable for nasal administration comprises, as active ingredient an attenuated influenza type B virus strain recombinant obtained from (i) a vaccinal and attenuated influenza type B virus strain and (ii) another influenza type B virus strain, said recombinant having at least one marker property of said attenuated strain which is not shared by said other strain and the antigenic composition of said other strain. The attenuated strain may be Brigit strain. The recombinant may be influenza type BR5, R22 or R22 strain (ATCC VR787, 788 and 789 respectively). The recombinant may be prepared by combining the attenuated strain and the other strain in the allantoic cavity of embryonated chicken eggs, and isolating the recombinant by selective pressure. The isolate may be grown in the allantoic cavity of chicken eggs, admixed with a stabilizer, e.g. peptone or sugar, and freeze-dried. The vaccine may also include an attenuated influenza type A virus vaccine, e.g. Alice strain (ATCC VR776).
Patent GB-501692-A (GB)
Title: Improvements in and relating to radio receiving apparatus
IPC: H03J5/24
Filed: 1938-02-14
Abstract: 501,692. Adjusting wireless apparatus. BROWN, W. J. Feb. 14, 1938, No. 4558. [Class 37] [Also in Group XL] A wireless receiver having push-button tuning to each of a plurality of selected wave-, lengths, is provided with additional. pushbuttons which enable manual tuning control to be effected on each of several wavebands. Figs. 1 and 2 show respectively the radio frequency and the oscillator tuning circuits of a superheterodyne receiver, in which pushbuttons simultaneously operate contacts 4a, 4b or 5a, 5b &c. to fix-tune the receiver to the desired predetermined wavelength. In Fig. 1, semi-fixed condensers C2 ... C8 are switched selectively across the long wave coil L3, medium band coil L2 and short wave coil L1, while in the oscillator circuit inductances VL10 ... VL16 of variable permeability type are connected across condenser C16 or C17. The push button switches 1a, 2a, 3a, switch the coils L1, L2, L3, in parallel with one section VC1 of a ganged tuning condenser assembly for manual tuning on three wave bands, the corresponding switches 1b, 2b, 3b, of the oscillator connecting - inductances L6, L7, L8 across the other section VC2 of the variable condenser together with padding condensers C9 ... C14. A further push-button may be provided to change from radio reception to gramophone reproduction by cutting out the radio frequency circuits and connecting the pick-up in any suitable manner.
Patent GB-449270-A (GB)
Title: Improvements in apparatus for spraying liquid
IPC: F02M69/00
Filed: 1935-02-13
Abstract: 449,270. Spray-producers. SOUTHEY, A. W., and SOUTHEY, E., 32, Carleton Road, Tufnell Park, London. Feb. 13, 1935, No. 4615. [Class 69 (iii)] [See also Groups XI and XXVII] A spraying device for use in internal - combustion engines, for oil burners or for distributing disinfectants comprises a fine uninterrupted channel B through which air or gas is projected against a circular baffle D at right angles to the axis of the channel and liquid to be sprayed is supplied through an annular nozzle co-axial with the channel through which the air or gas is delivered. In the form shown the liquid is supplied in the same direction as the gas from a nozzle E surrounding the channel B but in a modification the liquid is supplied in the opposite direction to the gas through a nozzle surrounding a stem supporting the baffle plate.
Patent GB-720729-A (GB)
Title: Improvements in mixing and stirring machines with mixing beakers
IPC: A47J43/07
Filed: 1953-02-19
Abstract: 720,729. Mixing-appliances. BOSCH GES., R. Feb. 19, 1953 [March 15, 1952], No. 4617/53. Class 86. In a mixing machine a mixer beaker 1 is adapted to be screwed by an internal thread 2 at its lower end on to an externally threaded portion 5 on a base 4 which is arranged to be inserted into the machine casing. A sealing washer 6 is placed between the base and an annular shoulder 3 within the beaker. A driving shaft 7 for the rotatable stirring or cutting mechanism is mounted on the base 4.
Patent GB-178077-A (GB)
Title: Improvements in or relating to the suspension of automobiles and other vehicles
IPC: B60G15/02
Filed: 1922-02-16
Abstract: 178,077. Ram, G. H. E. de. April 4,1921, [Convention date]. Addition to 166,534. Axle distance members.-The jointed quadrilateral framework described in the parent Specification is applied to rear axles having a central torque tube by interposing a secondary and similarly jointed framework between the axle and the original framework. As shown, a shaft 50 mounted at the rear of the chassis is keyed at one end 55 to a rod 51 universally jointed at 57 to a shackle 53 pivoted at e to the rear axle. A rod 52 is pivoted on the axis b, d to the other end 56 of the shaft 50, and is pivoted at 58 to a shackle 54 universally jointed at f to the rear axle. The line e, f may coincide with the axis of the rear axle. The rods 51, 52 are connected together by arms 59, 60 pivoted together at 61 on the axis b, d. The members 50, 51, 52, 59, 60 constitute the primary frame and the shackles 53, 54 and the axle constitute the secondary frame.
Patent GB-1160055-A (GB)
Title: Improvements in Copper Boron Sulfur Alloy and method of Treatment
IPC: H01B1/02
Filed: 1968-01-30
Abstract: 1,160,055. Copper base alloys. ANACONDA AMERICAN BRASS CO. Jan. 30, 1968 [Feb. 2, 1967], No. 4638/68. Heading C7A. A copper base alloy comprises B 0À004 - 0À03% S 0À002 - 0À01% the balance, apart from impurities, such as up to 0‹002% each of Fe and Si, being copper. The alloys may be solution treated at 900-1040‹ C. (e. g. in an Ar/H 2  mixture or in cracked ammonia), water quenched, cold rolled and annealed in a salt bath at 400-500‹ C.
Patent GB-981880-A (GB)
Title: Apparatus and method for sorting flat articles
IPC: B07C3/08
Filed: 1962-02-07
Abstract: 981,880. Endless conveyers. M. M. LEVY. Feb. 7, 1962 [Feb. 8, 1961], No. 4720/62. Heading B8A. [Also in Division G4] In a letter-sorting machine, letters are deposited in accumulators in accordance with code designations on the letters, and after sorting on the first digit of the code, the batches of letters formed in the accumulators are automatically transferred in turn to a stacker ready for sorting on the next digit of the code. The letters 4, Fig. 4, may be carried by traps 6 on an endless conveyer and are deposited in the selected accumulator by the action of cams which are moved to an operative position by energizing a solenoid at the appropriate accumulators. A first cam causes trap 6 to project between fingers 31 so that the letter 4 passes between fingers 31 and spring strips 34, any letters already in the accumulator being pushed back by a resilient member 6b on the trap. The letter then abuts against bifurcated arms 33, and at the same time a second cam causes the jaws of trap 6 to open and release the letter. In this embodiment the accumulators are also carried on an endless chain conveyer, and after the first sorting operation the accumulators are moved by this conveyer past a stacking device, Fig. 5. As each batch of letters enters the stacker, the letters abut against arms 38 and are thus retained in the stacker as the accumulator moves on. Letters already in the stacker may be pushed back by ends 35 of fingers 31, as shown, or a reciprocating lever may be employed. In an alternative embodiment, the letters are dropped into accumulators 173, Fig. 16, and the batches are transferred in turn to a stacker by moving the stacker past the accumulators, an arm 174b on the stacker causing flaps 174 to open as the stacker passes the successive accumulators. The stacker comprises a platform 187 which is driven by a motor 193 under control of a photo-cell 192 so that the batches of letters each fall the same distance on to platform 187. In another embodiment the bottom of each accumulator is formed by an endless conveyer 140, Fig. 11, which comprises three spaced belts carrying plates 143. The stacker comprises a vertically driven pair of bars 145 carrying arms 144 which collect each batch of letters in turn from conveyer 140. In a similar arrangement plates 143 are replaced by wedges which form sloping floors for the accumulators. Another type of accumulator is shown in Fig. 15. Each accumulator is divided into several compartments by flaps 160, corresponding flaps in each accumulator being connected by arms 164. By appropriate actuation of arms 164, letters may be sorted into batches in any one of the accumulator compartments, and similarly, one or more batches may be dropped on to conveyer 170 as desired. Specifications 932,479 and 981,879 are referred to.
Patent GB-398097-A (GB)
Title: Improvements in guards for paper cutting guillotine machines
IPC: B26D7/22
Filed: 1933-02-16
Abstract: 398,097. Machinery guards. CROSLAND, Ltd., W. and SHAW, J. S., Bank Foundry, Bredbury, Cheshire. Feb. 16, 1933, No. 4721. [Class 80 (iv).] A guard f for guillotine machines is operated by a cam D<1> on a shaft D, a lever d<1> with camfollower roller d, a spring-pressed rod e, and levers E, F. The last-named are bi-lateral and form a framework with shafts e<1>, e<3>. The bell cranks F are connected with the frame of the machine by pivoted rods f<1>. When the knife A has descended a pre-determined portion of its stroke the cam operates the levers and the guard bars f move aside the arms of the operator if he has not already withdrawn them. The guard is returned to inoperative position by the spring e2.
Patent GB-1377282-A (GB)
Title: Flame retardant composition
IPC: C08K5/02
Filed: 1972-02-01
Abstract: 1377282 Halogenated cyclooctadiene/cyclopentadiene adducts CITIES SERVICE CO 1 Feb 1972 [12 Feb 1971] 4723/72 Heading C2C [Also in Division C3] Adducts of cyclooctadiene-1,5 and hexachlorocyclopentadiene may be prepared by heating the reactants under reflux. 1 : 1 adduct may be separated from 1 : 2 adduct by vacuum distillation or solvent extraction, and reacted with excess bromine to give materials suitable as flame retarding agents for normally flammable organic materials. In examples cyclooctadiene- and hexachlorocyclopentadiene are reacted and the 1 : 1 adduct separated (1) by vacuum distillation, and by extraction with (56) heptane, (57) benzene/t-butyl alcohol, (58) heptane/ t-butanol, (59) methylene chloride, (60) dioxane, (61) ethylene glycol, (62) nitropropane, (63) methyl cyanide, (64) acetonitrile and (65) dimethyl formamide. The product (1) is brominated to 5,6-dibromo-1,10,11,12,13,13-hexachloro tricyclo[8.2.1.0<SP>2.9</SP>]tridec-11-ene.
Patent GB-925041-A (GB)
Title: Improvements in or relating to stacking machines
IPC: B65G57/18
Filed: 1960-02-10
Abstract: 925,041. Stacking machines. T. T. BOUGHTON, and T. T. BOUGHTON & SONS Ltd. Feb. 10, 1961 [Feb. 10, 1960], No. 4746/60. Class 94(1). [Also in Group XXX] A machine for stacking long objects 40, e.g. planks, with their longitudinal axes horizontal and parallel to one another, comprises a gripping device 24, 24<SP>1</SP>; means for actuating the gripping device to grip the objects across their width when in a first position; and means for transporting the objects in a direction transverse so their longitudinal axes to a second position where they are released. A pneumatic ram 28 causes the grippers 24, 24<SP>1</SP>, mounted respectively on the upper and lower runs of a belt 22 running on pulleys 20, 21, to move equal and opposite distances together to grip a plank 40 fed, by means of a rollerway 38, from the saw mill. When the pressure in ram 28 reaches a predetermined level (70 lbs./sq. inch.) air is fed to a similar ram 18 causing bell cranks 6, 7 to lift the gripper assembly away from the rollerway. The gripper assembly, together with its supporting member 5 is then driven by a pneumatic motor towards support arms 31 and, on reaching a predetermined position above the arms, is released by the grippers. The arms 31 are then lowered by the thickness of one plank while the gripper assembly moves back to the rollerway. The cycle is then repeated, successive planks being stacked, with their longitudinal axes vertically above one another, upon arms 31. When the desired stack is complete, arms 31 are lowered further until the stack rests on a second rollerway 39 which is then driven to remove the stack. Instead of a single pair of grippers 24, 24<SP>1</SP> two or more pairs may be provided, with associated mechanism at intervals along the length of the planks.
Patent GB-211701-A (GB)
Title: Improvements in woodworkers' benches
IPC: B27C9/04
Filed: 1923-02-19
Abstract: 211,701. Saul, C. Feb. 19, 1923. Driving-devices ; tools. - A wood-worker's bench is provided with an electromotor A having three pulleys on its shaft, from which are driven a planing cutter Y<1>, a band saw U and a cutter head W, the latter through friction wheels K, the spindle S<1> being adjusted vertically for reversing. Circular saws X, J<2>, boring tools Y, Z, an emery wheel P and a glass-paper band O are also provided, the belts being transferred to the various driving pulleys as required. The table is made in hinged sections.
Patent GB-547768-A (GB)
Title: Improvements in and relating to anti-slip devices for the wheels of agricultural tractors and the like
IPC: B60C27/08
Filed: 1941-04-10
Abstract: 547,768. Vehicles wheels. NICOLL, D. D. April 10, 1941, No. 4782. [Class 144 (ii)] Anti-slip devices comprise transverse angle bars 1 with bent-down eyes 2 threaded on to rings 8 of side chains comprising the rings connected by eyed rods 5. The angle-bars rock through a right angle as they pass over the ground, and maintain the side chains tight on the wheel.
Patent GB-682409-A (GB)
Title: Improved apparatus for the continuous treatment of freshly-spun threads or yarns with liquids in tube systems prior to collection
IPC: D01D10/04
Filed: 1950-02-24
Abstract: <PICT:0682409/IV (a)/1> Apparatus for treating freshly-spun yarn or thread with different liquids prior to collection, wherein the yarn or thread is passed through a plurality of tubes arranged one above the other, is characterized in that a vertically mounted nipple is provided at the outlet of each tube for simultaneously discharging the thread and the liquid and that the position of each nipple can be modified in relation to the supply opening for the thread in the succeeding tube.  In the preferred form, some of the tubes may be so arranged for movement so as to place the supply opening of the movable tubes below the discharge nipples of the other tubes.  As shown, the tube system comprises a series of tubes 11-16 in which a synthetic or artificial thread 10 (e.g. as spun from viscose) issuing from a spinning bath is treated with various liquids such as, for example, water, sulphuric acid, water, sodium sulphide, water and a finishing material respectively.  The tubes are provided at one end with vertical discharge nipples 17-22, respectively.  The other ends are connected to the liquid supply lines and near these ends are located supply funnels 23-28, respectively, integral with the tubes. The thread is introduced into the tubes by these funnels, issuing with the liquid through the discharge nipples at the other end. Tubes 12, 14 and 16 may be mounted movably, and advantage is taken of this arrangement on spinning-in.  Funnels 29, 31 and 33 are mounted on and move together with the movable tubes 12, 14 and 16, and these funnels as well as funnels 30, 32 and 34 mounted on the fixed tubes serve to carry off the treating liquids.  The position of the movable tubes and funnels when spinning-in is shown in broken lines in the drawing.  In this position the integral funnels 24-28 are directly below the discharge nipples 17-21.  The outlet of the last tube 16 is above a funnel 35 mounted beside the funnel 34. Water under pressure is supplied horizontally through each tube, thus propelling the thread through the system.  If desired, the thread 10 may enter the system with the aid of water.  The thread leaving the system may be guided on by means of rollers.  The movable tubes 12, 14 and 16 are then shifted to the position shown in continuous lines and the water supply stopped and the treating liquids introduced.  The movement of the tubes and the movement of the valves controlling the liquid and/or water supplies may be effected by a single controlling member. The funnels 24-28 may be extended below the tubes to allow any liquid carried by the thread to drain away.  To increase the efficiency of the suction through the tubes a venturi may be provided near the supply opening as in tube 11.  The thread may be maintained in the middle of the tube by a slight interior rise near the nipple.