baber/WOPTO huggingface dataset:
Patent GB-947418-A (GB)
Title: Improvements relating to electrical triggering circuits
Inventor: ANTOSZEWSKI EUGENIUSZ
IPC: H02H3/20
Filed: 1961-07-20
Abstract: 947,418. Transistor switching; relay circuits. ENGLISH ELECTRIC CO. Ltd. July 16, 1962 [July 20, 1961], No. 26285/61. Heading H3T. [Also in Division H2] A transistor relay circuit comprises two transistors 10, 11, forming a balanced amplifier, connected so that when a D.C. signal is applied at 28, of such magnitude and polarity that transistor 10 becomes more conducting and transistor 11 less conducting, the decrease in the conductivity of transistor 11 causes the voltage drop across Zener diode 21 to increase above its breakdown voltage so that the current then flowing through the diode constitutes an output signal. The collector impedance of transistor 11 comprising resistors 13, 14, 15 and thermistor 16 is adjusted so that in the absence of a D.C. signal at 28 the collector voltage of transistor 11 is just below the Zener voltage of Zener diode 21 connecting the collector of transistor 11 with the base of transistor 22 in the collector circuit of which is an auxiliary relay 23. When the input signal is applied at 28 and transistor 11 is cut off, the Zener breakdown voltage is exceeded and transistor 22 is biased into conduction and relay 23 energized. In the protective relay circuit of Fig. 2 three balanced amplifiers, one for each phase of a three-phase system, are connected through blocking diodes 30 in parallel to the base of driving transistor 31 which is provided with a Zener diode 32 in its emitter circuit. Normally, the potentials of the collectors of transistors 11 are below the Zener breakdown voltage of diode 32, but when a D.C. signal is applied to the terminals 28 of any of the amplifiers and the appropriate transistor 11 becomes non-conducting transistor 31 is rendered conducting and S.C.R. 33 is energized, whereupon a circuit-breaker tripping coil 34 is energized to trip the circuit breaker. Capacitor 37 slows down the tripping action and prevents the circuit-breaker from tripping in response to transients.
Patent GB-1003446-A (GB)
Title: Fuel element for nuclear reactor
Inventor: BOUDOURESQUES BERNARD
IPC: G21C3/38
Filed: 1963-07-03
Abstract: 1,003,446. Fuel elements. COMMISARIAT A L'ENERGIE ATOMIQUE. July 3, 1963 [July 6, 1962; Oct. 17, 1962], No. 26359/63. Heading G6C. A tubular nuclear fuel member has internal and external cans, the coolant flowing both internally and externally of the fuel element, and is characterized by the provision, on the surface of the inner can, of projections of small height, such that the coefficient of friction of the inner can surface is 5 to 25 times less than the outer surface, and offers a resistance to flow 1¢ to 6 times greater than a smooth surface. The projections may be in the form of fins, corrugations, or both, or the surface may merely be roughened; the fins may be of herring-bone pattern. The invention is particularly applicable to gas-cooled graphite moderated reactors, and the fuel is preferably natural or slightly enriched uranium. The fuel element 1 is located in a cylindrical channel 4 by projections 8, which define a number of separate compartments. The fuel 7 has a longitudinally finned internal can 9, and a herring-bone filled outer can 2. The small height of the internal finning represents a compromise between high heat conduction rates and low coolant velocities. Various forms of interlocking are described for attaching the fuel to the inner can, including forming dovetail section circular grooves in the fuel surface into which the inner can is forced by hydrostatic pressure, to form a series of circular vortex inducing grooves in the can surface.
Patent GB-1468599-A (GB)
Title: Detecting magnetic domains
IPC: G11C19/08
Filed: 1974-06-14
Abstract: 1468599 Detecting bubble domains PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 14 June 1974 [18 June 1973] 26415/74 Heading H3B In a method for the detection, at a location 9, of bubble domains 13 which are movable in a thin magnetic plate 10, a microwave signal is applied to a first microwave circuit 2 and the signal received in a second microwave circuit 3 is measured, this measurement indicating the presence or absence of a bubble domain at 9. The circuits 2, 3 are arranged with respect to the magnetic plate 10 such that they are magnetically coupled. As shown, the plate 10 is located on a substrate 11, while the circuits 2, 3 comprise electrodes ground or etched in a gold layer 7. Preferably, the frequency of the applied microwave signal is chosen to produce ferrimagnetic resonance in the plate 10. To enhance the magnetic coupling between circuits 2 and 3, an additional magnetic plate may be arranged between 7 and 10. The circuit 3 may be located on the rear face of substrate 11. The applied microwave signal may be pulsed.
Patent GB-246599-A (GB)
Title: Improvements in electric lamp holders and like electric couplings
IPC: H01R33/22
Filed: 1924-11-06
Abstract: 246,599. White, J. C. Nov. 6, 1924. Holders.-To prevent the user of a lamp accidentally gripping or coming in contact with the metal cap of the lamp or the like until the lamp is clear of the socket, a collar a of insulating material is provided within the holder b and a spring c tends to cause the sleeve a to project from the holder. When inserting the lamp the sleeve a bears against the bulb and is pressed into the holder as the lamp is placed in position. The weight of the sleeve or an added weight may be utilized in place of the spring c. Specification 205,660 is referred to.
Patent GB-796652-A (GB)
Title: Improvements in or relating to waveguide phase-changing devices
Inventor: CLARE JOHN DICKENS
IPC: H01P1/18
Filed: 1954-09-14
Abstract: 796,652. Waveguide phase-changing networks. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Sept. 2, 1955 [Sept. 14, 1954], No. 26573/54. Class 40 (8). A waveguide phase-shifting device comprises a 6 db directional coupler C5 in which power from an input branch 5 is equally divided in quadrature between two short - circuited branches 1, 4 of equal length whence it is reflected to an output branch 6. If the lengths of the branches 1, 4 are changed by equal amounts the whole of the input energy still appears at the output but with a phase shift corresponding to twice the change in length of the reflecting branches. A cyclical phase change is achieved by means of a pair of synchronously-driven obturating plates 7, 71 mounted to move in gaps arranged at equal distances from the short-circuited ends 2, 3. The gaps are provided with double quarterwave choke-slots 9, 10. In order to reduce the transit time of the edges of the plates 7, 71 the waveguide branches 1, 4 are tapered in the vicinity of the gaps. The plates move across the gap in the direction of the smaller dimension of the waveguide. In an alternative arrangement (Fig. 5a), a short-circuiting plate 17 is arranged to rotate within longitudinal slots which extend from the ends of the waveguide sections 1, 4 in a plane containing the waveguide axis and parallel to its narrow dimension. The radius of the rotating plate determines the change in length of the sections 1, 4. Choke slots 19 are provided. The waveguides may be filled with a dielectric material.
Patent GB-261853-A (GB)
Title: Improvements in and relating to reel bars for reeling paper or other material
IPC: B65H75/24
Filed: 1925-09-07
Abstract: 261,853. Sheldon, E. E. Sept. 7, 1925. Collapsable spindles.-In a reeling-bar, such as described in Specification 23294/11, in which a number of rings of elastic material spaced apart by bushes are mounted on a shaft between a fixed collar and an adjusting nut by which the rings may be expanded to grip the material being wound, an antifriction device such as a ball thrust bearing is interposed between the nut and the adjacent bush to facilitate the operation of the nut. A spirally split steel tube may be interposed between the rings and the material being wound. Two or more rings e<1>, e<2> of rubber or other elastic material separated by collars d<1>, b<2> and distance tubes f are mounted on a shaft a between a fixed collar b and an adjusting nut c between which and a collar j engaging the ring e<1> is placed a ball thrust bearing h. By screwing up the nut c, the rings e<1>, e<2> are expanded and grip the strawboard or spirally split steel tube g on which the material is to be wound.
Patent GB-798368-A (GB)
Title: Improvements in or relating to regulating units for electric lighting installations
IPC: F16D27/12
Filed: 1956-08-31
Abstract: 798,368. Overload slip clutches. SIEMENSSCHUCKERTWERKE AKT.-GES. Aug. 31, 1956 [Aug. 31, 1955], No. 26716/56. Class 80 (2). [Also in Groups XXXV and XXXVI] The Figure shows a magnetic friction clutch comprising potshaped magnets 5, 6, having energizing coils 7, 8, and associated clutch discs 11, 12 which are connected with spur gears 9, 1 so that shaft 1 may be selectively coupled to shafts 20, 21 to control the potentiometers of a stage-lighting regulating system (see Group XXXVI). Two discs 27, 28 of non-magnetic, non-abrasive material are situated between the magnets 5, 6 and discs 11, 12 so thatwhen the regulating members have reached their end position the clutch will slip and damage to the clutch or regulating members is prevented. Specification 725,433, [Group XXXV], is referred to.
Patent GB-266415-A (GB)
Title: Improvements in and relating to processes for the production of citric acid
IPC: C12P7/48
Filed: 1925-10-26
Abstract: 266,415. Fernbach, A., Yuill, J. L., and Rowntree & Co., Ltd. Oct. 26, 1925. Citric acid; calcium citrate.-The process of Specification 266,414 is extended in that (1) it is applied to the treatment of sucrose, invert sugar, glucose, lµvulose, maltose, other suitable carbohydrates, and glycerol, or mixtures thereof, and (2) not only hydrochloric acid, but other mineral or strong organic acids or mixtures thereof may be added to the solution.
Patent GB-651088-A (GB)
Title: Electric pulse communication system
IPC: H04B14/06
Filed: 1948-10-15
Abstract: 651,088. Pulse code modulation systems. STANDARD TELEPHONES & CABLES, Ltd. Oct. 15, 1948, No. 26833. Convention date, Jan. 20. [Class 40 (v)] In a pulse code communication system a source of regularly-repeated pulses is connected through a gating circuit to key " on " a radio transmitter, the pulses at the output of the gating circuit being demodulated to reproduce the modulating wave and the gating circuit being blocked when the difference in amplitudes between the modulating wave and the reproduction wave has a given sign. In the radio system described, a 56 kc/s. pulse generator 4, 5, Fig. 1, feeds a gate circuit 7, the output of which is fed through shaper 8 to the radio transmitter 1, 2. The gate circuit 7 is controlled by the voltage across resistance 13 of a comparator 10 which is fed in opposition with the signal, which may be speech from a microphone 17, and with the demodulated output from the gate circuit 7 derived from demodulator 9. This differential voltage is amplified and limited in circuit 18 which yields a negative square wave during times that the input signal exceeds the demodulator output. These square waves are delayed in network 19 for a time interval corresponding to the pulse duration in circuit 7, and result in a regular succession of pulses being transmitted except when the input signal amplitude exceeds the demodulated signal amplitude. The demodulator 9 may comprise the circuit of the demodulator 24, Fig. 2, of the receiver. The radio receiver 20 feeds pulses to the shaper 21 and thence to the grid of valve 23 of the demodulator 24. When valve 23 is rendered conducting by a pulse 34, Fig. 3e, condenser 25 shares its charge with condenser 26. During the intervals between pulses, condenser 26 discharges through the constant current valve 28 at a rate such that it loses, in one pulse interval, half the charge it gains from one discharge of condenser 25. Thus, when pulses 34 are received, the voltage across condenser 26 follows the sawtooth curve 35, Fig. 3f, which is smoothed in low-pass filter 31 to give the signal 36 in the reproducer 32. Specification 627,462 is referred to.
Patent GB-776514-A (GB)
Title: Pump priming system
IPC: F04D9/06
Filed: 1955-09-20
Abstract: 776,514. Centrifugal pumps. AMERICANMARSH PUMPS (CANADA), Ltd. Sept. 20, 1955 [July 20, 1955], No. 26882/55. Class 110 (1). A pump is primed by applying a vacuum to it by a connection to the intake manifold of an internal combustion engine until a part of the required vacuum is obtained, the remainder of the vacuum being obtained by the application of a further source of suction. A centrifugal pump is connected at 6 to a float chamber 4 through a valve 5. The float chamber 4 is connected through a valve 3 and a check valve 2 to a vacuum line 12 connected to the intake manifold of the internal combustion engine which drives the pump. A vacuum pump 8 is connected by a pipe 7 to a point between the valve 3 and check valve 2. When a vacuum of 5 inches mercury is reached in the line 12, check valve 2 opens to permit air to be withdrawn by the engine intake manifold. When a handle 10 is pulled, valves 3 and 5 are opened and a switch 11 is closed to energize the driving motor 9 of the vacuum pump 8, which then assists the engine in priming the centrifugal pump. When the vacuum reaches the maximum vacuum of the engine, about 15 to 16 inches mercury, the check valve 2 closes, and the small remaining quantity of air is removed by the vacuum pump 8 alone until the vacuum exceeds 25 inches mercury. The float chamber 4 prevents water from entering the vacuum pump 8 on completion of priming.
Patent GB-1009551-A (GB)
Title: Silo, especially for agricultural silage (green silage) and processes of silage handling
IPC: A01F25/16
Filed: 1960-08-03
Abstract: 1,009,551. Silos. P. A. MARTINI. Aug. 1, 1961 [Aug. 3, 1960], No. 26884/60. Heading A1F. A silo is characterized in that instead of being vertical, it is horizontal or inclined and has openings at both ends so that it can be charged with forage at one end and the resulting silage discharged at the other end. As-shown the silo is charged through a filling opening fo provided with a pressure tight door t and the silage is moved toward the emptying opening eo by a conveyer f which may be provided with spikes and comprise a belt or lattice conveyer. A compressing plate q moved by cables or chains s is provided. The bottom b of the silo may slope from the sides to the middle to facilitate draining and a siphon sy is located at its deepest point. Valves sv and air inlets h are provided in the roof and air bags is serving to equalize pressure are located above the silage. The silo is preferably of semi-circular cross-section. In a modification the silage is compressed and moved by means of a hydraulically operated plate which also forms the door for the filling opening. Apertured probes may be inserted through the roof of the silo for drawing air from the silo or for introducing carbonic acid. A number of silos may be placed side by side to form a battery.
Patent GB-1393301-A (GB)
Title: Food casings
IPC: C08J7/04
Filed: 1972-06-09
Abstract: 1393301 Tubular casings UNION CARBIDE CORP 9 June 1972 [10 June 1971] 26961/72 Heading A2B A tubular cellulosic casing for encasing and processing food products, such as frankfurters, from which the skin has to be readily peeled, is internally coated with a homogeneous mixture of at least two components, one being a water-soluble cellulose ether in amount of at least 0.001 mg/in<SP>2</SP> of interior surface, and the other being selected from animal, vegetable, mineral or silicone oils and water-soluble alkylene oxide adducts of fatty acid partial esters, in amount of between 0.1 and 15 times the weight of the ether, and not more than 0.5 mg/in<SP>2</SP> of interior surface. A polyol of 3-6 carbon atoms may also be present.
Patent GB-381700-A (GB)
Title: Improvements in or relating to feeding rollers in textile or like apparatus more especially twisting machines
IPC: D01H13/04
Filed: 1931-09-23
Abstract: 381,700. Delivery rollers for doubling or twisting machines. DUNLOP COTTON MILLS, Ltd., 32, Osnaburgh Street, London, and ANDREW, T. E., of Dunlop Cotton Mills, Rochdale. Sept. 23, 1931, No. 26566. [Class 120 (ii).] Delivery rollers for doubling or twisting machines comprise an idler roller 7 resting on and driven from a pair of supporting rollers 5, 6, at least one of the rollers, preferably the idler roller, being circumferentially grooved. Each groove 8 may accommodate a single yarn 1, as shown, or as many foldings as are to be doubled. Ridges may be used instead of grooves.
Patent GB-519127-A (GB)
Title: Improvements in cradles for infants
IPC: A47D9/00
Filed: 1938-09-15
Abstract: 519,127. Cradles ; cots. CARREL; A. A., and CARREL, [nee DE LA MOTTE], A, Sept. 15, 1938, No. 27009. Convention date, Nov. 9, 1937. [Class 52 (ii)] A cot or cradle for infants consists of a hollow body 1, of heat insulating material, with a flat bottom 2 and an opening partly closed by a removable cover 3 and a fixed portion 5 which together provide a circular opening 6 to which is secured a two-part collar 7 of thick -wool covered with impermeable material. The opening 8 in the collar fits the neck of an infant supported on a hammock 12 disposed above a removable receptacle 11 resting upon a vessel 9 containing hot or cold water .and having a filling plug 10 and discharge tap 10<1>. Ventilating apertures 16 and dry and wet bulb thermometers 14 are provided.
Patent GB-975081-A (GB)
Title: Threaded clamp type hose coupling
Inventor: STRANBERG DON FREDERICK
IPC: F16L33/23
Filed: 1963-07-09
Abstract: 975,081. Hose couplings. ANCHOR COUPLING CO. Inc. July 9, 1963, No. 27099/63. Heading F2G. A hose coupling of the split clamp type comprises an insert 1 including an attaching head 2 and stem 3, threads 13 formed on said stem and a pair of complementary clamp sectors 8 having gripping threads formed on their inner faces conforming in number to and pitch of the stem threads such that the sectors are interlocked on the insert. Means are provided on the stem and clamp sectors for circumferentially indexing the stem with respect to the clamp sectors. In the construction shown the threads formed on the stem have equal widths of roots and flats and radiuses of approximately half of the depth of the threads connecting the flats and roots of the thread. The indexing means comprises co-operating notches 7 and ribs or webs 12 of the insert and the clamping sectors respectively which also possess a complementary rib 6 and groove 11. If an even multiple number of threads is formed on the sectors then the sectors are identical.
Patent GB-1185689-A (GB)
Title: Apparatus for Heating Hair Rollers or Curlers
Inventor: WILLIAMS FREDERICK REGINALD
IPC: A45D4/16
Filed: 1967-06-13
Abstract: 1,185,689. Heating hair curlers. DREAMLAND ELECTRICAL APPLIANCES Ltd. 9 July, 1968 [13 June, 1967], No. 27163/67. Heading A4V. [Also in Division A5] An apparatus for heating hollow hair curlers or rollers prior to their use on the head comprises a casing, means for detachably mounting the curlers thereon, and a duct for supplying heated air to the curlers. A casing 10 has an internal duct 11 communicating with recesses 12 for receiving hollow cylindrical curlers 13. One end of the casing is attached to the outlet of a conventional hair-dryer 14, which includes an electric motor 15, a fan 16 and an electric heating element 17. The recess 12 consists of a circular depressed base with a central upstanding hollow stem communicating with the duct and having an open end, the stem being received in the hollow interior of the curler. The base preferably has radial ribs so that the heated air, after circulating around the inside of the curler, can pass beneath its end and flow over its outer surface. The curler may leave a layer of heat-sensitive paint on its closed end to give visual indication that the operating temperature has been reached. In an alternative embodiment, the motor and fan are incorporated in the casing, with the heating element disposed in the duct. The duct may bifurcate, to provide an outlet for connection to an external hose and hood for drying the hair (see Division A5), the direction of the hot air flow being selected by a two-way control valve.
Patent GB-279115-A (GB)
Title: Closing rib for rubber gaiters
IPC: A41D17/00
Filed: 1927-10-15
Abstract: 279,115. Neue Gummigamaschen Ges. Oct. 15, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Gaiters.-In a rubber gaiter with strengthening ribs 2, 4 at the buttoning position, the strengthening rib 4 is provided with two elevated portions 5, one each side of the buttonholes 7. The rib 2 is shaped, as shown, with long chamfered parts s, s<1> at opposite sides of its buttonholes 3, one of the parts s<1> being cemented to the material of the gaiter. Between the parts s, s<1> the material is cut away.
Patent GB-363313-A (GB)
Title: Improvements in or relating to impulse transmitters for use in telephone or like systems
IPC: H04M1/23
Filed: 1930-09-15
Abstract: 363,313. Impulse transmitters. ASSOCIATED TELEPHONE & TELEGRAPH CO., 1033, West Van Buren Street, Chicago, U.S.A. Sept. 15, 1930, No. 27509. Convention date, Sept. 26, 1929. [Class 40 (iv).] A disc-shaped protective cover 5 for the internal mechanism of a number-dial is secured between the finger disc 10 and the finger-disc mounting 18 and fits over an upwardly-projecting flange 81 on the number plate 15. The plate 15 is of the material known under the registered Trade Mark "Bakelite" and is held in the cup 25 by a spring 26 the free ends of which engage notches in the flange 8 1. Specification 234,036, [Class 40 (iv), Telephones &c.], is referred to.
Patent GB-261001-A (GB)
Title: Improvements in shutter-operating devices or attachments for photographic cameras
IPC: G03B9/58
Filed: 1926-11-03
Abstract: 261,001. Harde, E. E. Nov. 3, 1925, [Convention date]. Shutters.-A shutter-operating device or attachmentfor roll-film cameras of the kind wherein a member automatically locks the shutteroperating member after an exposure has been made, so that this member cannot again be actuated until the locking member has been released by manually-operable means, is characterized in that, after release of the looking member, the releasing means is operated by the shutter-operating member during the shutter-operating movement in order to permit resetting of the locking member in position for subsequent relocking. The apparatus serves to minimize the risk of making two exposures before winding the film. In the form shown, the cylindrical head 1 of a Bowden wire release mechanism of ordinary kind encloses a two-armed spring detent the arm 16 of which is secured to the lining 8 of the head 1, and the free end of the arm 15 of which is adapted to spring beneath an enlargement 13 on the operating stem 2 to lock this stem against movement after its return by the spring 9 on completing an exposure. The stem cannot be displaced bv pressing on the usual button 3 until the detent has been disengaged from the enlargement 13 by depressing a button 29, the stem 17 of which rocks a lever 20, pivoted in the head 1 at 19, so that a nose 25 on the lever displaces the arm 15 of the detent into inoperative position. The releasing lever 20 is rocked back, on depressing the stem 2 to make an exposure, by the engagement of the enlargement 13 with a cam 27 on an upstanding arm 21 of the lever, and the detent arm 15 is thereby free to return into position for subsequently re-engaging the enlargement 13.