baber/WOPTO huggingface dataset:
Patent GB-850731-A (GB)
Title: Improvements in or relating to digital computing devices
IPC: G11C19/12
Filed: 1956-09-25
Abstract: 850,731. Parametrically-excited resonators. KOKUSAI DENSHIN DENWA KABUSHIKI KAISHA. Sept. 25, 1956 [Sept. 27, 1955], No. 29295/56. Class 40 (9). [Also in Group XIX] Parametrically-excited resonators which comprise the gating elements of switching networks or shifting registers are selectively excited over gates each comprising two further resonators and a frequency doubler. As shown in Fig. 8, the excitation frequency 2f of parametricallyexcited resonators P3, P4 is obtained from a frequency doubler CO, the input frequency f of which is derived from resonators P1, P2. Phasecontrolling signals for P1 and P2 are applied to their respective input terminals E1 and E2, and an effective input to the doubler is obtained only when the resonators operate in opposite phases. The frequency doubler may comprise the biased and non-linear second harmonic magnetic or dielectric circuits shown in Figs. 6A and 6B, respectively, the input circuit from resonators P1, P2 being connected to terminals 5, 5A. Alternatively the arrangement described in Specification 827,658 and shown in Fig. 7 may be used, the terminals I-IV being respectively connected to a D.C. bias source, the controlling resonators P1, P2, a source of frequency f or 3f and the controlled resonators P3, P4. A switching network, Fig. 4, is described in which signals having phases 0 or 11 representing binary values are selectively transferred between channels S, S1, S2 ... Sn by parametrically-excited resonators P, P1, P2 ... Pn. By selectively exciting the resonators, a signal may be transferred from a selected channel S1 ... Sn to S or vice versa or may be transferred from one channel to another in the group S1 . . . Sn. An application to shifting registers, Fig. 5, is also described in which resonators P1-P6 are selectively energized over leads e1, e2, e3 in the various time positions shown in Fig. 2. Each group of three resonators such as P1-P3 stores a single binary digit represented by phase 0 or 11, and terminals S1, S2 are provided for registering parallel signals in serial form or for obtaining parallel outputs from a series. The direction of shift may be reversed by changing the order of excitation to e3, e2, el . - . , and it is stated that the arrangement may be used for adding and subtracting operations. The registered information may be held indefinitely by maintaining one of the excitation patterns or by alternately shifting the recorded information between adjacent resonators. Mention is made of varying the D.C. bias in the excitation circuit for controlling oscillation of the resonators. Reference has been directed by the Comptroller to Specification 778,883.
Patent GB-1332278-A (GB)
Title: Variable area and reversing jet propulsion nozzles
IPC: F02K1/60
Filed: 1972-06-22
Abstract: 1332278 Jet propulsion nozzles - variable area,thrust reversing GENERAL MOTORS CORP 22 June 1972 [23 June 1971] 29315/72 Heading F1J [Also in Division B7] The invention relates to a variable area and reverse thrust jet propulsion nozzle comprising two pairs of part-spherical eyelids which are movable about two axes transverse one to the other, the eyelids being movable to vary the nozzle area also to close the nozzle outlet in thrust reverse operation. The nozzle comprises a first pair of "inner" part-spherical eyelid members 14 which are rotatable about the axis 15 from a fully open position shown in full lines, Fig. 7, to a closed position shown in chain-dot lines in which the abut. The wall of the jet pipe comprises spaced walls 22, 23 and part-spherical end portions 26, 29 also a seal member 28, the eyelid members in the fully open position engaging the part-spherical member 29 and the seal member 28. The eyelid members are connected by arms 16 to links 18 which in turn are connected to the piston rod 19 of an actuator 20, there being an actuator at each pivot axis 15. The nozzle comprises also a second pair of "outer" part-spherical eyelid members 11 which are rotatable about axis 12 from the fully open position shown in full lines Fig. 9 to the closed position shown in chain-dot lines. The members 11 are slightly larger in diameter than the members 14 so as to be movable with respect thereto; they are of smaller circumferential extent than the members 14. They are movable by means of similar actuators 20, piston rods 19, links 18 and arms 16. Opening 63 are formed in the wall of the jet pipe for discharge of gases in reverse thrust operation, there being three large openings, two at the sides and one at the bottom and two smaller openings at the top. Each opening has a set of deflector vanes 68 mounted therein, the vanes being pivotally mounted and movable in unison by means of a connecting rod 74 between a closed position shown in full lines in Fig. 5 and an open position shown in chain-dot lines. The vanes are held in the closed position by means of a spring 84 and are moved to the open position by means of the actuators 20 which act through extensible links 82 connected to the pivot points of the links 18 and arms 16 and to the connecting rods 74 such that the vanes move to the open position when the eyelid members move to the closed position.
Patent GB-1345731-A (GB)
Title: Surface wave transducer
IPC: H03H9/145
Filed: 1971-06-22
Abstract: 1345731 Acoustic surface wave devices INTERNATIONAL BUSINESS MACHINES CORP 22 June 1971 [30 Sept 1970] 29323/71 Heading H3U [Also in Division G4] An acoustic surface wave device comprises a piezo substrate 11, Fig. 3, supporting pairs 44, 38; 42, 36 of electrodes which, in response to a data input pulse provide a pair of positive going pulses (16), Fig. 2 (not shown) separated by a region of zero signal level, the negative going portion between the pulses, which would have been produced by the pair 38, 42 having been deflected, by auxiliary electrodes 48, 46, so that it is not received at receiving transducer 62. The auxiliary electrodes may be conductively separate from the other electrodes. A second transducer 56, 54; 52, 50; 60, 58 produces a negative going pulse and a positive going pulse, separated by a zero level region, (18) Fig. 2 (not shown). Receiving transducers 78, 62 of similar construction to the second transducer, and transducer 32 receive the respective waveforms (18, 16), and produce respective three pulses output waveforms, (22, 20) of relative pulse magnitudes (-1, +2,-1), (+1, +2, +1) with respect to the acoustic input pulses which, when added, give a single output pulse (24), of relative magnitude (+4). In Fig. 6, the receiving transducers 102 are so phased and spaced that, for a particular three digit input sequence, supplied to transducers 100, the output is maximized. The device can thus be used for binary sequence pattern recognition. The gain-bandwidth product in transducers for data processing can be increased using the above techniques. The load 94 may be a resistor.
Patent GB-326519-A (GB)
Title: Improvements in or relating to photographic half-tone printing processes
IPC: G03F5/12
Filed: 1928-10-11
Abstract: 326,519. Ernst, V. C. Oct. 11, 1928. Drawings to Specification. Photo-mechanical printing-surfaces.-In halftone printing using a lenticular screen, the most refrangible (e.g. violet) rays are focused on the sensitized surface. The spherical and chromatic aberrations of the lenticular elements cause the dots of the half-tone, image to be more exposed in the centre than in the surrounding portions. The method is applicable to printing by contact or projection.
Patent GB-364120-A (GB)
Title: Improvements in or relating to hulls of ships
IPC: B63B3/24
Filed: 1930-10-01
Abstract: 364,120. Ships' skins. GOODYEAR, J. W., 4, Devonshire Place, Birkenhead. Oct. 1, 1930, Nos. 29361 and 32569. [Class 113 (ii).] To reduce resistance to propulsion the lap joints of the skin plating below the water line are formed by the insertion of metal members 5 of triangular cross section arranged as shown. The members may be spot or continuously welded to the plates 2 and the edge facing the strake 3 may be recessed to receive and key the filling 20. In alternatives cement is used as an insertion and is reinforced with wire netting 10 which is either anchored to studs 7 welded to the plates 2 or directly welded to the plates. In another form, the metal insertions slightly overlap the adjacent strake and are attached to the hull by countersunk screws.
Patent GB-195332-A (GB)
Title: Improvements in or relating to hose drums
IPC: B65H75/38
Filed: 1922-10-27
Abstract: 195,332. Gilbert, V. G. W., and Foamite Firefoam, Ltd. Oct. 27, 1922. Angle -pieces.-Fluids fed into the ends of the tubular axle 3 of a revoluble drum are separately fed to twin hose lengths mounted upon the drum and detachably connected to the arms 8, by dividing the axle and connecting the parts by two angle bends 10 having flanged adjacent faces 11 for riveting.
Patent GB-1471689-A (GB)
Title: Reducing mills
IPC: B21B17/14
Filed: 1974-07-03
Abstract: 1471689 Rolling tubes FRIEDRICH KOCKS 3 July 1974 [4 July 1973] 29556/74 Heading B3M The initial sizing pass of a continuous tube rolling mill has an out-of-roundness determined by the largest and smallest diameters of tubes able to be rolled in the mill. The pass 4 may be defined by three rollers 1 to 3 whose grooves generate out-of-round regions 5. The inscribed circle 8 of the pass is slightly smaller than a tube 7 of the smallest diameter to be rolled. Similarly the circumscribed circle of the pass is slightly larger than the largest diameter tube (Fig. 2, not shown).
Patent GB-343991-A (GB)
Title: Method of and means for determining the position and angle of inclination of aerial photographs at the moment of exposure
IPC: G03B17/56
Filed: 1929-09-30
Abstract: 343,991. Photographic surveying. LOFSTROM, K. G. and LEHTONEN, T. K., 58, Fredriksgaten, Helsingfors. Sept. 30, 1929, No. 29604. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 2, 1929.] [Classes 97 (ii) and 98 (i).] To determine the angle and direction of greatest inclination in aerial photographs without the aid of fixed or surveyed points on the terrain, a series of terrain photographs are taken and simultaneously therewith readings of a box level or of several tube levels and also horizon pictures in one or more directions. From a comparison of the recorded readings of the levels and of the inclinations calculated from the corresponding horizon photographs a mean difference is obtained which is used as a correcting factor. Examples of the method are given in the Specification. The horizon pictures are taken on red sensitive or panchromatic plates, using a suitable (red) filter. The apparatus described includes a main lens 2 for the terrain picture, lenses indicated diagrammatically at 3, 4 which are associated with prisms and filters for horizon pictures from directions indicated by arrows b, c, and means for a reading 11 of a level or of levels, all being simultaneously produced on the same picture plate or film by synchronized shutters.
Patent GB-963206-A (GB)
Title: Improvements in or relating to pneumatic vehicle tyres
IPC: B60C9/20
Filed: 1961-08-17
Abstract: 963,206. Pneumatic tyres. CONTINENTAL GUMMI-WERKE A.G. Aug. 17, 1961 [Aug. 31, 1960], No. 29674/61. Heading B7C. A pneumatic tyre comprises a carcase of radial cords 2 and a tread reinforcement 4 formed by at least two plies 9, 11, 13 of parallel cords disposed with their cords all parallel to each other at the same acute angle α of from 10 to 20 degrees to the circumferential direction 14, and a further ply 10, 12 of transverse cords (i.e. cords parallel to the radial carcase cords 2) between each pair of adjacent plies 9, 11, 13, the reinforcement plies 9-13 each extending over the width of the tread. The plies 9, 11 and 13 may be rubberized with rubber of different hardness from that of plies 10, 12.
Patent GB-1310289-A (GB)
Title: Gear pump or motor
IPC: F04C15/00
Filed: 1970-06-18
Abstract: 1310289 Helical gear pump or motor SHIMADZU SEISAKUSHO Ltd 18 June 1970 [18 Nov 19691 29698/70 Heading F1F In a gear pump or motor in which the gears 11, 12 have helical teeth, the axial thrusts A and B on the gear shafts 21, 25 are balanced by supplying liquid from the high pressure side of the pump or motor to suitably dimensioned chambers 57, 58 in an end plate 16 to act on the ends of the shafts. The liquid may act on the ends of the shafts through plates 53, 54 piston-like members 5], 52 having ring seals effecting sealing of the chambers 57, 58. The gears 11 12 are sealed axially by pressure-loaded check-plates 34, 35, the relative effective areas of which, as defined by seals 40, 41 are such as to produce an axial force on the gears 11, 12 and shafts 21, 25 which respectively supplements and counteracts the axial forces on shafts 21 and 25 due to the helicity of the gears, the net effect being the unequal thrusts A and B.
Patent GB-1214944-A (GB)
Title: Improvements relating to internal combustion engines
Inventor: REISACHER JOSEF
IPC: F02M41/06
Filed: 1968-06-21
Abstract: 1,214,944. Regulating I.C. engines; fuelinjection pumps. DAIMLER-BENZ A.G. June 21, 1968, No.29735/68. Headings F1A and F1B. In an I. C. engine, a fuel injection pump piston 6 is driven by a radial cam 13, and a rotary fuel distributer 5 is driven by a spur gear 11 via spur gear 9. The gear 11 and the cam 13 are mounted via a common hub 12 on an overhung end portion 10<SP>1</SP> of an engine shaft, e.g. on the cam-shaft 10 or, in the case of two or four stroke engines with uniform ignition spacing, on the crank-shaft. Moreover, a gear-wheel 14 on the free end of the cam-shaft houses a centrifugal injection timing adjuster which angularly adjusts the member 11, 12, 13 relative to the cam-shaft in dependence on engine speed. The rotary distributer 5 may also function as the drive-shaft for an injection pump governor 19 and/ or the fuel supply pump 20. The cam 13 may also drive the piston of a smaller injection pump for preinjection or ignition injection, the smaller injection pump delivering into the delivery pipe of the main injection pump. In an I.C. engine of the V-type, the cam may co-operate with two pump pistons angularly spaced around the cam axis.
Patent GB-324094-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1928-10-15
Abstract: 324,094. Automatic Telephone Manufacturing Co., Ltd., Gillings, C., and Rice, T. G. Oct. 15, 1928. Automatic exchange systems. - In a hunting switch the driving magnet (or interrupter relay controlling the driving magnet) is operated in a local circuit until an idle line is found when the test wiper potential shunts the self-interrupting electromagnet and operates the switching relay. The magnet DM of the line switch (Fig. 1) is driven by self-interruption from earth at 15 in series with resistance R. When a free line is reached battery over the test wiper P shunts DM and operates K (to earth at 15) which disconnects DM and switches through. Relay K is maintained by earth returned over P via both its windings in series to battery at DM. In Fig. 2 the group. selector hunts due to the interaction of G and RM, the circuit of G being via R1 to 116. When a free circuit is found, battery on P (such as that shown at R2) shunts G and operates switching relay H. If all circuits are busy, CS operates on the eleventh step to return busy tone from BF.
Patent GB-797241-A (GB)
Title: N:n-bis [(1-aminocycloalkyl)methyl] alkylene diamines
Filed: 1956-10-01
Abstract: N,N1 - bis[(1 - aminocycloalkyl) - methyl] - alkylene diamines are prepared by catalytic hydrogenation of N,N1-bis[(1-nitrocycloalkyl)-methyl]-alkylene diamines preferably in the presence of a solvent such as methanol, ethanol, isopropanol, dioxane, benzene, cyclohexane, petroleum ether or mixtures of an alkanol having 1-3 carbon atoms and water such as a 50/50 mixture of ethanol and water.  Suitable catalysts are Raney nickel, nickel oxides, finely-divided metals of Group VIII of the Periodic Table, e.g. nickel, iron, cobalt, platinum, palladium or rhodium, Group VIII metals or copper supported on pumice, asbestos, kieselguhr, alumina, silica gel or charcoal, finely-divided copper, palladium or platinum black, colloidal palladium or platinum or platinum sponge. Quantities of catalyst of from one part per million of nitro compound may be used.  The temperature of the reaction is preferably between the freezing and boiling point of the mixture under reaction conditions.  Pressures from 1-1000 atmospheres may be used.  The tetramines are separated from the reaction mixtures by filtering off the catalyst and insoluble material, distilling off the solvent, and thereafter distilling the residue at reduced pressure.  The process may also be carried out continuously or in combination with the process of Specification 793,425 for producing N,N1-bis-[(1-nitrocycloalkyl)-methyl]-alkylene diamines.  Th N,N1-bis[(1-aminocycloalkyl)-methyl]-alkylene diamines may be used in a process for the chelation of a heavy metal, e.g. copper, cobalt, or nickel, and also for curing epoxy resins. Examples are given of the preparation of N,N1-bis[(1 - aminocyclohexyl) - methyl] - ethylenediamine, and N,N1 - bis[(1 - nitrocyclohexyl) - methyl]-hexamethylenediamine.ALSO:N,N1 - bis - [(1 - aminocycloalkyl)methyl]alkylene diamines are used as curing agents for epoxy resins.  Examples are given of compositions of an epoxy resin with (1) N,N1-bis-[(1-aminocyclohexyl)methyl]ethylene diamine; (2) N,N1 - bis - [(1 - aminocyclohexyl)methyl] hexamethylene diamine; (3) m-phenylenediamine; (4) methylenedianiline. Specification 793,425, [Group IV (b)], is referred to.
Patent GB-1128730-A (GB)
Title: Rear light for automotive vehicles
IPC: B60Q1/30
Filed: 1967-06-28
Abstract: 1,128,730. Vehicle rear lighting. SWFSPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU G.m.b.H. 28 June, 1967 [22 July, 1966], No. 29831/67. Heading F4R. The rear light, stop light and flashing indicator light for a motor vehicle or trailer, are arranged one on each side of a reflex reflector formed as a triangle with the point upwards, , to form a unit, one of which is mounted on each side at the rear of the vehicle. The light housing 1 is divided by opaque partitions 2 into spaces 3, 4, 5 for the respective lights, the lamp sockets being mounted in the central space. The housing is closed by a translucent cover provided with refractory elements forming a triangular reflex reflector and with the areas covering the light spaces 3, 4, 5 appropriately coloured. The bottom wall of the cover may be apertured and provided with a replaceable uncoloured sector so that the rear light 10 in the space 5 may also be used to illuminate the vehicle number plate.
Patent GB-951567-A (GB)
Title: Coating compositions for foundry sand moulds or cores
IPC: B22C3/00
Filed: 1962-08-03
Abstract: 951,567. Mould and core materials. GENERAL MOTORS CORPORATION. Aug. 3, 1962 [Aug. 18, 1961], No. 29904/62. Heading B3F. A coating composition for a sand mould or core comprises a slurry of mica powder, calcined hydrated aluminium silicate such as kaolinite, bentonite and a liquid carrier. The carrier may be water or ethyl, methyl or isopropyl alcohol, toluene, a chlorinated hydrocarbon or naphthol spirit. A water-dispersible phenolic resin, or sugar may be used with a water carrier to serve as a binder. Other resins such as urea formaldehyde polyvinyl chloride, vinylidene chloride, polyvinyl alcohol and polyvinyl acetate, and thermosetting resins such as melamine formaldehyde may also be added in total amount not exceeding 7% by weight of solids in the binder. NaCl or HCl may be added to improve dipping characteristics, and a wetting agent.
Patent GB-685215-A (GB)
Title: Improvements relating to cranes
IPC: B66C23/36
Filed: 1949-11-22
Abstract: 685,215. Mobile jib cranes. BELL, N. G. Nov. 15, 1950. [Nov. 22, 1949] No. 29921/49. Class 78 (iv). [Also in Group XXXI] The turntable of the mobile crane shown is made in two detachably connected parts 3, 4 and carries an engine 9, a jib 5, a mast 6, a backtie 8 for the mast, and an additional mast 7 which connects the joint 11 in the turntable to the junction of the mast 6 and the backtie 8. Two hoist drums 13, 22, a drum 12 for the derricking rope 10 and a drum 23 from which passes a slewing cable 24 which engages round a slewing ring 25 are driven through chains from the engine 9. In the form shown in Fig. 6, the crane is carried by wheels 19 running on a rail track 20. It may, however, be mounted on rollers, walking traction units or endless tracks. The masts 6 and 7, the backtie 8 and the rear part 4 of the turntable may be arranged to form a temporary derrick, shown in Fig. 5 as mounted on a vehicle, for erecting the remainder of the crane. In the construction of Fig. 5 the base 1 which carries the forward part 3 of the turntable is mounted on detachable endless track units 2 (see Group XXXI). The travelling and revolving mechanisms may be driven through a shaft in the joint 11 of the turntable.
Patent GB-1141895-A (GB)
Title: Improvements in or relating to laying down ink traces on charts
IPC: H01Q21/29
Filed: 1967-06-28
Abstract: 1,141,895. Pens for recording instruments. INSTRON CORP. 28 June, 1967 [16 Nov., 1966], No. 29936/67. Heading B6P. [Also in Divisions F2 and G1] A pen for recording instrument comprises a ball point pen cartridge 26 connected to an aquarium pump 32 delivering a pressure of between ¢ and 2 p.s.i., preferably 1¢ p.s.i. to pressurize the ink in the cartridge.
Patent GB-762335-A (GB)
Title: Apparatus for the sterilisation or pasteurisation of the contents of bottles, cans or similar containers
IPC: A23L3/02
Filed: 1954-10-18
Abstract: 762,335. Sterilizing filled containers. BRONSWERK N. V. Oct. 18, 1954 [Oct. 20, 1953], No. 29942/54. Class 49 In apparatus for sterilizing or pasteurizing the contents of bottles, cans or like containers whereby the containers on a conveyer are passed into a heating compartment of a tunnel and there brought to the required temperature and are then passed into a cooling compartment of the tunnel, the conveyer being a row of cars which, in certain positions along the length of the tunnel, co-operate with partitions on the upper and lower walls of the tunnel to form channels for the flow of air through the cars, and the cars being displaced intermittently to assume these positions, means are provided for rotating the cars about the longitudinal axis of the tunnel when the cars occupy these positions. The apparatus of Figs. 1 and 2 comprises a tunnel 13 of sections 1 to 12, each accommodating a car 15 which holds firmly, between walls 16 and 17, layers of crates C of the containers. The cars are moved intermittently along the tunnel through a distance equal to the length of a section so as to bring baffles 32 on the tunnel wall into the same planes as the car walls. A fan 18 causes atmospheric air to pass successively through sections 12, 11, 10 and 9 in a vertical zig-zag path, through the fan 18, along a conduit 19, down through section 2 and up through section 1 to a chimney la, and a fan 20 circulates a steam and air mixture through sections 5, 6, 7 and 8. The tunnel is provided with a cylinder 21 having rails 22 for the wheels 31 of the cars 15 and having a car cage made up of rings 23 and 24 interconnected by longitudinal girders 25 and logitudinal girders 26, the rings resting on rollers 27 and 28; rotation of the cylinder, and the cars engaged therein, is. effected by driving rollers 29 which engage the rims of the rings 24. Specification 693,518 is referred to.