baber/WOPTO huggingface dataset:
Patent GB-1312298-A (GB)
Title: Fluid pressure governor
IPC: F16H61/00
Filed: 1970-07-21
Abstract: 1312298 Change-speed control NISSAN MOTOR CO Ltd 21 July 1970 [22 July 1969] 35219/70 Heading F2D A governor for producing a fluid pressure 20 proportional to speed, for control of an automatic transmission on a motor-vehicle, is in general similar to that of Specification 1,312,297 but differs in that the primary and secondary valves 24, 26 are at right-angles instead of diametrically opposite, and the characteristics are modified as described below. The spool of the primary valve 24 has an outer land 44 larger than an inner, 42, and the inward loading of a spring 46 is such that, in a first stage, up to a predetermined speed, it resists outward centrifugal and fluid pressure loading to maintain closed the communication between a pressure supply 18 and delivery 56 resulting in zero governor pressure 20. In a second stage above this speed, the primary valve 24 regulates pressure through a cross-over passage 56 to the secondary valve 26, loaded outward by a spring 70 and centrifugal force to regulate further the final governor pressure 20. Figs. 4 and 6 (not shown), are generally similar to Fig. 2 but provide a third pressure stage. In Fig. 4 (not shown), the flow capacity of the secondary valve 26, up to a second predetermined speed, exceeds that of the primary valve 24, so that in this second stage the primary valve 24 regulates alone. In a third stage, above the second speed, both valves regulate as in Fig. 2 and the characteristic is less steep. In Fig. 6 (not shown), the direction of fluid flow is from the secondary to the primary valve.
Patent GB-1008401-A (GB)
Title: Improvements in and relating to electrical phase discriminators
Inventor: WEAVER JOHN JAMES LAWRANCE
IPC: H02H3/38
Filed: 1960-10-14
Abstract: 1,008,401. Phase discriminators. ENGLISH ELECTRIC CO. Ltd. Oct. 11, 1961 [Oct. 14, 1960], No. 35265/60. Addition to 850,646. Heading H3A. In a phase discriminator as described in the parent Specification, in which the discriminator D.C. output is backed off by a D.C. bias across resistor 20 produced by rectifier 19, proportional to the amplitude of the weaker signal 12, it is arranged that above a particular value of the weaker input 12 in relation to the other input 11 a rectifier 50 conducts to introduce a backing off D.C. bias from a rectifier 52, proportional to the amplitude of the other input 11. By this means the backing off bias is made proportional in each case to the weaker signal amplitude and, the output also being proportional only to the weaker signal amplitude, the phase relation for which zero output is obtained from the discriminator is made independent of the amplitudes of both signal inputs. The discriminator may be applied to stabilizing the power factor of a high frequency electric furnace, its output varying the frequency of an oscillator controlling the frequency of a grid-controlled mercury arc inverter supplying the furnace (see the parent Specification (Group XXXV), or to operating protective electrical relays.
Patent GB-1309506-A (GB)
Title: Event detector
IPC: G11B15/00
Filed: 1971-07-27
Abstract: 1309506 Automatic speed control AMPEX CORP 27 July 1971 [13 Aug 1970] 35297/71 Heading G3R [Also in Division G4] Apparatus for positioning a moving object at a particular point at a particular time, e.g. a frame location on a videotape 12 comprises a magnetic reading head 13 adapted to read consecutive coded addresses adjacent each frame as the tape is moved, the addresses being fed to a subtractor 23 for comparison with the code of the desired frame 24, 26, the output from 23 i.e. the instantaneous distance of the frame from the head being subtracted at 27 from the count at 28 derived from a preset input indicative of the time, expressed as a number of frames until the required frame is needed at the particular position, and which is decremented by a clock 31 at a rate corresponding to that of the passage of frames at the "normal transducing" speed, a zero output at 27 indicating the required frame is correctly positioned with respect to the playback head (not shown) if the speed of movement of tape is that of the normal transducing speed, this condition lasting for a period inversely proportional to the difference of this speed and the actual speed of the tape as determined by the external drive 18, this external drive being replaced by an internal servo-balanced drive of the transducing speed when the two speeds are nearly equal. Analysis of the time for which the zero condition exists at 27 is made by 2 counters 33, 41, the former enabled by the "zero" condition via inverter 37 and the latter by the non zero condition, the tape also having a clock track adjacent the frames supplied as counting pulse to both counters. Appearance of the zero condition causes resetting of counter 41 and enabling of counter 33 whereon if the count reaches e.g. 224 (equivalent to about 3 frames distance), flipflop 45 causes relay 48 to insert the internal drive. Upon appearance of a non-zero signal, counter 33 is stopped and 41 counts to a value e.g. 24 (about 1/3 frame) and resets to zero the first counter at 44. Hence the relay is not activated unless the zero condition exists for a total duration of about 3 frames with breaks in its continuity of less than 1/3 frame (i.e. the condition will only be satisfied when the phase between the counts presented at 27 is less than 60 degrees). Fine control of synchronising speed is governed by a tachometer servo loop 52, 53.
Patent GB-1016513-A (GB)
Title: Condensation products of alkylphenols,formaldehyde and taurines and methods of preparing the same
IPC: A01N25/30
Filed: 1962-09-17
Abstract: Additives for fuel oils, hydraulic fluids, lubricating oils, cutting oils and greases have the formula (I) <FORM:1016513/C4-C5/1> wherein one of R1 and R2 is C8- 20 alkyl and the other is the same or H; R4 and R5 are H or C1- 7 alkyl; R3 is H, -CH2CH2SO3M, C1- 20 alkyl, aryl, cycloalkyl or abietinyl; M is H or a cation; x and y are 1 or 2.ALSO:Compounds used in protecting metals in acid treating baths, apparently rust inhibitors, have the formula (I) <FORM:1016513/C6-C7/1> wherein one of R1 and R2 is C8-20 alkyl and the other is the same as H3, R4 and R5 are H or C1-7 alkyl; R3 is H, -CH2CH2SO3M, C1-20 alkyl, aryl, cycloalkyl or abietiryl; M is H or a cation; x and y are 1 or 2.ALSO:Compounds of Formula (I) <FORM:1016513/C2/1> are made by reacting together formaldehyde, an alkylphenol (II) and a taurine (III).  One of R1 and R2 is <FORM:1016513/C2/2> <FORM:1016513/C2/3> C8-20 alkyl and the other is the same or H; R4 and R5 are H or C1-7 alkyl; R3 is H, -CH2-CH2SO3M, C1-20 alkyl, aryl, cycloalkyl or abietinyl; M is H or a cation; x and y are 1 or 2. In examples, formaldehyde is reacted with N-methyltaurine and dodecylphenol, nonylphenol, 2,4-diamylphenol or diisobutylphenol; and with N-heptyltaurine and nonylphenol.ALSO:Air-entraining agents for concrete or cement have the formula (I) <FORM:1016513/C1/1> wherein one of R1 and R2 is C8- 20 alkyl and the other is the same or H; R4 and R5 are H or C1- 7 alkyl; R3 is H, -CH2CH2SO3M, C1- 20 alkyl, aryl, cycloalkyl or abietinyl, M is H or a cation; x and y are 1 or 2.
Patent GB-1193127-A (GB)
Title: Removal of Water from Organic Liquids
IPC: C10G25/06
Filed: 1967-08-01
Abstract: 1,193,127. Drying organic liquids. W. R. GRACE & CO. 1 Aug., 1967 [9 Sept., 1966], No. 35358/67. Heading C2C. [Also in Division C5] Water-containing organic liquids are dried by passing them through a drying bed of partially dehydrated crystalline aluminosilicate particles having a size from 50 to 200 microns and a Roller Test attrition index of from 5 to 35, and recovering liquid freed of water from the bed. The organic liquids may be passed down a packed or loose bed of the particles or up a packed bed. An example uses ethyl alcohol and a zeolite. Other substances which may be dried include other alcohols, acetal, aldehydes, acetaldehydeammonia, formic acid, chloral, chlorohydrin, chloroacetone and pyridines. Regeneration may be effected by a stream of gas at 110- 500‹ C., or by steaming and calcining in an oxygen-containing atmosphere.
Patent GB-941460-A (GB)
Title: Apparatus for supplying a washing liquid to the windscreens of motor vehicles
IPC: B60S1/48
Filed: 1962-09-18
Abstract: 941,460. Electromagnetic couplings. H. A. CHIVERS. Sept. 18, 1962 [Oct. 5, 1961], No. 35432/62. Heading H2A. [Also in Divisions A4 and F1] A windscreen washer comprises a solenoid 6 with a tubular passageway 7 in which a pair of plungers 8 and 9 of magnetic material is mounted for reciprocation and normally retained there in spaced relationship and driving means for reciprocating plunger 8, the solenoid being adapted, when energized to attract the plungers together causing reciprocation of plunger 9 and hence operation of pumping means 14 attached to its base. Plunger 8 is operated by the windscreen wiper motor via drive shaft 11, actuating cam 12 and roller 13. Solenoid 6 is energized on manual operation of a push-button switch and de-energization automatically occurs after the pumping means has operated for a predetermined period of time. The automatic control means comprises contact strips 22 and 23 which engage a contactplate 21 containing a non-conductive part 24 so that contact is broken after a revolution of ratchet-wheel 20.
Patent GB-1371411-A (GB)
Title: Pulse generator circuit
IPC: H03K3/57
Filed: 1972-07-28
Abstract: 1371411 Thyristor pulse circuits DRESSER INDUSTRIES Inc 28 July 1972 [28 July 1971] 35496/72 Heading H3T  An S.C.R. pulse generator has a cathode impedance which is varied in response to the output pulse in such a manner as to ensure that the S.C.R. does not latch on. S.C.R. 57 is fired by each pulse from oscillator circuit 50 to produce a high voltage pulse in the secondary of an output-transformer. The pulse is fed back to a transistor 63 by a transformer 60, 62 and after a time the feedback is insufficient to maintain the transistor conducting and accordingly the S.C.R. extinguishes. If the input pulse is still present the S.C.R. will refire. Transistor 63 may be of F.E.T. type or may be replaced by an S.C.R.  The output pulses may be fed to a voltage multiplier supplying pulses and a D.C. to an ion tube (Fig. 1, not shown).
Patent GB-756313-A (GB)
Title: Improvements in or relating to stop-on-signal radio receivers
IPC: H03J1/20
Filed: 1954-12-09
Abstract: 756,313. Radio receiving sets. TELEFUNKEN GES., [formerly TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE]. Dec. 9, 1954 [Dec. 22, 1953], No. 35630/54. Drawings to Specifications. Class 40 (5). A multi-wave band stop-on-signal radio receiver is provided with a control element which is adapted to be moved in one manner to cause the receiver to search for a station transmitting signals and in a different manner to cause the waveband switch of the receiver to select a desired waveband. As described, the control element is depressed to cause the receiver to search and displaced laterally to operate the waveband switch.
Patent GB-1171625-A (GB)
Title: A combing cylinder of a combing machine and its manufacturing method
IPC: D01G19/10
Filed: 1966-09-09
Abstract: 1,171,625. Making combing cylinders by composite casting &c. NITTO SHOJI K.K., and A. MORIWAKI. 9 Sept., 1966, No. 35666/66. Headings B3A, B3F and B3V. [Also in Divisions B5 and D1] A flat, toothed, fibre-carding " wire " 15 is wound on edge in contacting coils on a mandrel 29. The part of the " wire " adjacent the mandrel is formed with recesses 18 and a groove (17) to form a reticulate space into which a low melting point alloy or solder (or a resin) is poured and allowed to harden. The mandrel 29 is removed from the toothed cylinder so formed and the latter is placed over a smaller core and further alloy (or resin) poured into the annular space between the core and toothed cylinder. The smaller core is then removed to leave a thicker-walled toothed cylinder which is cut into arcuate segments, each of which is mounted on a base cylinder for use in a combing machine. In Figs. 15A-15E (not shown), carding " wire " (possibly with a spacing wire 35) is wound on to a mandrel (33) and then mounted in a cylindrical mould comprising hinged and bolted halves (36, 37) and a wax or low melting point alloy poured into the annular space (34) between the teeth and mould. The mould and mandrel (33) are then removed and the cylinder made up of the toothed wire embedded in the wax is placed over a smaller core and a low melting point alloy or solder (or resin) poured into the annular space. After hardening, the wax or alloy is melted away to leave the toothed cylinder which is then cut into segments. In Figs. 16A-16C (not shown), segmental plates (48) with dovetail recesses (47) and formed by cutting stamped plate rings are placed side by side in a mould and joined to form an arcuate cylinder segment by pouring in a low melting point alloy or solder. The finished combing cylinder segment is then removed for mounting on a base cylinder.
Patent GB-1141350-A (GB)
Title: Phase lock circuit
IPC: H03L7/20
Filed: 1966-08-10
Abstract: 1,141,350. Automatic frequency control; transistor pulse circuits. TEKTRONIX Inc. 10 Aug., 1966 [16 Aug., 1965], No. 35722/66. Headings H3A and H3T. A phase lock system for maintaining an oscillator 10 locked to a standard frequency comprises a gating circuit 40, 42 which samples the oscillator signal, the switching waveform for the gate being pulses at a sub-harmonic of the standard frequency, the duration of the pulses being less than one cycle of the oscillator signal. If the oscillator is synchronized to the standard, sampling will take place at a point where the sampled waveform crosses the axis, point 116, Fig. 4, and the gate output has equal positive and negative portions point 114, giving an average of zero. If the frequencies differ the gate output will have a positive or negative average value (e.g. point 114<SP>1</SP>) to produce a control signal 118 which is fed back to adjust the oscillator frequency. The sampling pulses for the gate 40, 42 are derived from a reference oscillator 26 which triggers a monostable circuit 56. Positive output pulses from this circuit are fed via diode 74 to switch on an avalanche transistor 76 and produces pulses which are applied to a charge storage diode 86 to produce pulses of very short duration. These pulses are fed to a phase splitter, comprising a transmission line transformer 46, 50, 52, 54, to produce a push-pull switching signal for the diode gate 40, 42. The output from the gate is fed to a differential amplifier 28<SP>1</SP> which produces on line 30 the control signal for the oscillator 10. The system may form part of a spectrum analizer in which the output from the oscillator 10 and an unknown signal at 14 are mixed in circuit 12.
Patent GB-1518305-A (GB)
Title: Electric amplifying arrangements
IPC: H03K6/02
Filed: 1975-08-29
Abstract: 1518305 Amplifier for inductive loads ELLIOTT BROS (LONDON) Ltd 27 Aug 1976 [29 Aug 1975] 35724/75 Heading H3T In a circuit for supplying current to an inductive load L, e.g., a television scanning coil, in response to a sawtooth control voltage and of the type comprising switching devices Q 3  Q 2  which respectively discharge the load during the first part of the stroke and charge it during the second part, a further switching device Q 4  recharges the load during the second part of the flyback. During the first part of the flyback the inductor discharges into the capacitor C, through D 4  and Q 4  is rendered conductive by the voltage V c  to return the charge to the inductor. Negative feedback may be applied to render the ramp current in the load linearly dependent on the input ramp. Transistor Q1 may be a cascode arrangement to cut down the effects of Miller capacitance. A complete circuit diagram with the details of the switch drive circuit 2 is given (Fig. 2 not shown).
Patent GB-813000-A (GB)
Title: Photographic filter and antihalation layers
IPC: G03C1/835
Filed: 1956-11-22
Abstract: Copolymers of acrylonitrile, vinyl butyl ether and a mono-ester of maleic or fumaric acid are prepared from their monomers by conventional polymerization methods.  Alternatively, the vinyl constituents may be copolymerized with maleic anhydride and the product refluxed with the calculated amount of methanol or ethanol to give the mono-ester.  The mono-ester component should comprise 40-60 molar per cent of the molecule, and the ratio of acrylonitrile to vinyl butyl ether may be 1:4.  In an example, 4 mols. of vinyl butyl ether, 1 mol. of acrylonitrile and 5 mols. of maleic anhydride are copolymerized in methyl acetate with benzyl peroxide catalyst. Ethanol is then added and the mixture refluxed.  Specification 790,023, [Group XX], is referred to.
Patent GB-886518-A (GB)
Title: Improvements in or relating to milk products
IPC: A23C9/15
Filed: 1959-10-22
Abstract: A whole milk powder comprises (1) winterized liquid butter fat with non-fat milk solids or (2) winterized solid butter fat with non-fat milk solids, the proportion of total fat present approximating to the fat content of whole milk powder, or a mixture of (1) and (2) separately formed.  Preferred proportions are approximately 1 part of liquid fat for 1 to 3 parts of the non-fat milk solids in component (1) and approximately 1 part of solid fat for 2 to 5 parts of the non-fat milk solids in component (2); the two components are then blended, as by spray drying, in such proportions as to make the total fat content at least 1 part for about 2.47 parts of non-fat milk solids.  Winterizing temperatures of between 70 DEG  and 85 DEG  F. are stated to give the best products.  The wettability of the whole milk powders may be increased by including a proportion of 20-50% of lactose. According to an example, raw whole milk was flash heat-treated and then separated into cream and skim milk; the cream was further separated by destabilizing treatment and centrifuging to yield a butter oil of about 99.6% fat content.  The skim milk resulting from the various separation treatments was concentrated at a low temperature to 36% solids-not-fat, for use later in the process, whilst the butter oil was winterized at 70 DEG  F.  The liquid fat, to which a trace of citric acid was added to inactivate metallic contamination, and solid fat thereby obtained were steam-stripped and thereafter protected from oxidation (see Group III, abridgment of Specification 886,519, which was divided on the present Specification).  The liquid fat after stripping was blended and homogenized into the skim milk concentrate at a temperature of about 120 DEG  F., in a proportion of 1 part of fat to 1.18 parts of milk solids-not-fat and spray dried to a cream powder of 45% fat at a moisture level of 2%.  The solid fat was similarly blended at 140 DEG F. in the proportion of 1 part of fat to 5.0 parts of milk solids-not-fat and then spray dried to a low-fat milk powder of 16% fat at a moisture level of 3%.  The readily dispersible final product was prepared by blending these two components in proportions to give a powder of about 28% fat content.
Patent GB-430497-A (GB)
Title: Compressional wave transmitter and receiver, more particularly for subaqueous signalling
IPC: B06B1/08
Filed: 1933-12-20
Abstract: 430,497. Sound transmitting and receiving devices. ATLAS-WERKE AKT.- GES., Bremen, Germany. Dec. 20, 1933, No. 35857. Convention date, Jan. 7. [Class 40 (iv)] Apparatus for producing and receiving high frequency compressional waves, more particularly for subaqueous use, consists of a vibratory structure comprising a plate having a radiating surface of dimensions large compared to the wave length of the signalling frequency, a multiplicity of elongated magnetostrictive elements rigidly fixed by one end in non-contiguous relation to each other to the opposite surface of the plate and covering substantially all of the surface thereby forming a single unitary longitudinally-vibratory body and electromagnetic means operatively associated with the elements. In a preferred construction two plates are rigidly fixed one at each end of the elements and one or both of the plates are adapted to act as radiating surfaces. Fig. 1 shows a construction employing a plurality of magnetostrictive elements in the form of wires, rods or tubes 1 arranged out of metallic contact with each other and preferably held apart in insulating discs 2. The ends of the elements are secured by soldering, brazing or welding in metallic masses 3, 4. These masses may, however, be of insulating material, in which case, the elements may be pressed therein under pressure or secured thereto by adhesive or by means of insulating material applied in a liquid state. A coil 7 surrounding the elements as shown is supplied with alternating current and, if desired, with a direct current for producing an initial magnetization. An alternative construction is described in which elements in the form of radial strips are employed. Fig. 4 shows a construction in which one of the masses 9 is threaded into a metal plate 10 of relatively very large mass which closes one end of a casing 13, the other end of which is closed by a membrane 16 secured to the radiating mass 11. If desired, the membrane may be omitted and the space between the casing 13 and mass 11 filled with a material such as rubber which is impervious to water. Fig. 5 shows a further construction in which both the masses 20, 21 radiate sound, the elements 19 being supported at a node by a plate 24 of insulating material clamped between the parts 22, 23 of the surrounding casing. The coils 25, 26 may be connected in series and supplied with alternating and direct current or one coil may be used for the direct polarization current and the other for the alternating current. In this construction, the magnetic circuit is completed by a laminated yoke 27, 28 completely surrounding the coils. The radiating surface or surfaces may be mounted at the focus of a parabolic reflector.
Patent GB-874400-A (GB)
Title: Improvements in and relating to electric domestic appliances
Inventor: ROBERTS ROBERT SYDNEY
IPC: A01D69/02
Filed: 1958-11-10
Abstract: 874,400. Electric selective signalling systems. WOLSEY ELECTRONICS Ltd. Oct. 21, 1959 [Nov. 10, 1958], No.35988/58. Class 40 (1). A lawn mower is caused to steer to the left or right-as opposed to straight ahead-by superimposing a positive or negative D.C. signal respectively on the A.C. power cable supplying the lawn mower motor with power. As described, a lawn mower motor 4 receives A.C. power over a line 2, and by superimposing a D.C. signal on the line, under the control of a switch 11, a polarized relay 7 energizes one or other of two relays 5 and 6 thereby causing the mower to steer left or rightwards.
Patent GB-1396418-A (GB)
Title: Heating unit
IPC: H05B3/04
Filed: 1972-08-02
Abstract: 1396418 Resistance heating elements FRITZ EICHENAUER 2 Aug 1972 [4 Sept 1971] 36153/72 Heading H5H A hair dryer comprises a radial-flow fan 3 surrounded by at least one annular heating element 7, the heating element comprising a thin resistance wire wound about a core, the wire wound core 7 being arranged between a pair of insulating plates 11, 12 and being supported from one of them by supporting straps 15. As shown, a second heating element 18 concentrically surrounds element 7. Each supporting core comprises a steel wire insulated by spun glass filaments. Each supporting strap 15 is formed as a spring clip with parallel limbs 16, 17. An overtemperature switch 22 is mounted on plate 11 and also connecting contacts 19, 20, 21. A resistance section 24 connected to conducting support strap 25 and mounted on plate 11 is provided as a tapping for fan motor 2. Heated air is deflected by a curtain 9 into the axial direction indicated by arrows 8 and passes through apertures in hood 10.