baber/WOPTO huggingface dataset:
Patent GB-932170-A (GB)
Title: Improvements relating to radar stations
Inventor: WILLIAMS PETER LIONEL
IPC: G01S7/36
Filed: 1957-12-09
Abstract: 932,170. Pulse radar; radio receiving systems. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Nov. 21, 1958 [Dec. 9, 1957], No. 38193/57. Classes 40 (5) and 40 (7). In a radar station the receiver comprises a normal envelope detector fed with a frequency band derived from received signals, a frequency discriminating detector fed with the same band and adapted to provide substantially zero output in response to signals of a frequency equal to the centre frequency of the band, and means for combining the outputs from the two detectors in opposition for utilization. This provides protection against jamming in the form of a continuous wave signal which is frequency modulated to such an extent that it sweeps through a range of frequencies which is considerably greater than the I.F. bandwidth of the receiver. In Fig. 1 the output from the I.F. amplifier 6 of the receiver is fed to a normal detector 7 and to the input of the frequency discriminator detector. The latter includes two valves 8, 8<SP>1</SP> in parallel and having anode circuits tuned to the centre frequency f 0  of the I.F. band; the output of valve 8 is connected to a pair of parallel rectifying branches comprising diodes 13, 16 and circuits 11, 12 and 14, 15 tuned respectively to frequencies f 1  and f 2  which are the frequencies corresponding to the - 3 dB points of the I.F. pass band. Similarly, the output of valve 8<SP>1</SP> is fed to rectifying circuits comprising 11<SP>1</SP>, 121 tuned to f 1 , 14<SP>1</SP>, 151 tuned to f 2 , and diodes 13<SP>1</SP>, 16<SP>1</SP>. The outputs of the two halves of the discriminator circuit are fed to the two grids, which respond only to negative going grid inputs, of a double triode 17 which adds the inputs. The output versus frequency curve for the discriminator circuit is M shaped, with maxima at f 1  and f 2  and a minimum at f 0 . The output of valve 17 is fed to one half of valve 18, the other half of which is fed from detector 7; valve 18 subtracts the two signals and its output is fed to the display circuit (not shown).
Patent GB-1080773-A (GB)
Title: Automatic selection means for impulse-controlled equipment
IPC: H04M1/278
Filed: 1964-09-18
Abstract: 1,080,773. Impulse transmitters. HOLZER PATENT A.G. Sept. 18, 1964 [Sept. 19, 1963], No. 38253/84. Heading H4K. [Also in Division G4] A manually controlled multipath controller has slide means for interconnecting contact rails to short-circuit a pulse generator to obtain a set number of pulses. In Fig. 5, a motor 39 drives an impulse step switch 13, an impulse cam 47 and a decade step switch 14 such that during each revolution of impulse step switch 13, impulse cam 47 produces ten impulses with contacts 46 and after the revolution decade step switch 14 advances one position (through stepping mechanism 42). Each position of decade step switch 14 corresponds to one decimal order of a number to be transmitted as a pulse train. The number is selected by manually positioning sliders to connect each contact position of decade step switch 14 to one of eleven contact position " off," 1, 2, 3 . . . 9, 0 of impulse step switch 13 (the chain-dotted lines show example connections). For each position of decade step switch 14, impulses produced at contacts 46 are transmitted out until the wiper of impulse step switch 13 reaches the contact position connected to the current position of decade step switch 14 when a self-latching relay 49 is energized to close contacts 51 shorting the impulsing contacts 46 so that the remaining impulses for that decimal order are not transmitted out. To produce the necessary gap between decades, the O contact of impulse step switch 13 is elongated and relay 49 is energized whenever the wiper of switch 13 is in contact with it. If it is desired that the system shall not go through all the decade positions when the higher ones are unused, a return spring 62 for the decade step switch 14 may be provided, together with a clutch 63 for disconnecting the drive to switch 14 to allow the spring 62 to be operative. Clutch 63 is opened when a coil 64 connected to the " off contact of impulse step switch 13 is energized. The sliders for the unused decades are placed in the " off " position thereby connecting the other side of coil 64 to the corresponding contact positions of decade step switch 14. The system is started by closing manual switch 54 or on detection (at 65) of the engaged and/or free signal on telephone wires 52, 53 (which also constitute the power supply). Figs. 2-4 (not shown) show the selector construction. The stationary contacts (15, 18) of each step switch (13, 14), are connected to respective ones of a set of parallel contact rails, as circuitry on a respective printed circuit board (27, 26). The rails on one board are perpendicular to those on the other, and a slider associated with each rail of one set connects it with a selected rail of the other set, by means of a spring-loaded ball (30) passing through holes in one board to contact its rail on the other board, and a contact arm (29) to contact the selected rail (depending on slider position) on said one board.
Patent GB-923185-A (GB)
Title: Educational apparatus for teaching arithmetic
IPC: G09B19/02
Filed: 1958-11-28
Abstract: 923,185. Educational apparatus. H. SHAW. Oct. 27, 1959 [Nov. 28, 1958], No. 38383/58. Class 146 (2). Apparatus for teaching arithmatic comprises a peg-board and pegs 1 having a cyclindrical body of unit depth, a protrusion 2 to completely fit any board hole or a hole 3 in the other end face. The protrusion 2 may be of any shape and may have a key or key-way and may be an easy push-fit or a force-fit in the holes. Pegs may be permanently joined together as by adhesive or a force-fit to form rods of multiple unit length which are differently coloured or multi-unit integral rods may be provided which may or may not be marked off in units by grooved or raised lines. The board may have rows and columns of holes spaced slightly more than the peg radius apart so that pegs can be inserted only in alternate holes or a board 6 having rows of ten holes 7 at slightly more than diameter spacing may be used. The board 6 may have a slot 8 to receive charts for use in the teaching.
Patent GB-879734-A (GB)
Title: Process for making mono-oxidation products of phosphorus
IPC: C01B25/12
Filed: 1959-11-12
Abstract: Oxidation products of phosphorus are prepared by treating a mixture of P vapour and water vapour with O2 at 80-160 DEG C., the atomic ratio of O2 to P being within the range 0.01 to 2, and condensing the reaction product.  The P to water vapour weight ratio should be 1:10 to 1:100.  The O2 may be diluted with inert gas, e.g. N2 and/or CO2, or may be air. Condensation is effected by injecting water into the reaction mixture.  Yellow P in the condensate may be extracted by a solvent, e.g. CS2.  The product contains 87-93% P, 6-13% O2, and H, e.g. 0.7 or 0.8%, as remainder.
Patent GB-820045-A (GB)
Title: Improvements in or relating to electrical conductors
IPC: H01P3/18
Filed: 1957-12-13
Abstract: 820,045. Conductors. WESTERN ELECTRIC CO. Ltd. Dec. 13, 1957 [Dec. 26, 1956], No. 38799/57. Class 36. A conductor embodying electrical transposition arrangements for use with high frequency currents comprises an elongated conducting inner member having a plurality of conducting members spaced along it and insulated from it and means for maintaining the currents in the inner conducting member and the other conducting members substantially balanced, such means including a magnetic cylinder between adjacent outer conducting members and insulated therefrom and from the inner conducting member. The elongated inner member may be a core 12, e.g. of copper clad steel or of solid dielectric material with a conducting plating, insulated by a layer 13 and surrounded at longitudinally spaced intervals by conducting sleeves 14. Between the sleeves are magnetic rings 15 of high permeability, e.g. of ferrite material, surrounded by insulation 17. Current balancing may be effected by using bridging members 16A and 16B to connect opposite ends of each sleeve to the core on alternate sides of the adjacent magnetic rings so that the high series inductance at each transposition position resulting from the magnetic rings tends to effect transposition of current between inner and outer conducting layers at these positions. Alternatively adjacent sleeves 14 may be connected to each other by lengths of wire looped around the ring 15 in such a manner that the current flow in the part of the loop within the ring is in the opposite direction to that in the core 12. The effect of the difference in mutual inductance presented, by this transformer arrangement, to equal and unequal currents in the inner and outer conducting elements, respectively, is such as to counteract any tendency to unbalance.
Patent GB-1065324-A (GB)
Title: Improvements in parametric amplifiers
IPC: H03J7/04
Filed: 1963-10-02
Abstract: 1,065,324. Parametric amplifiers. CSF. COMPAGNIE GENERALE DE TEL- GRAPHIE SANS FILS. Oct. 2, 1963 [Oct. 2, 1962], No. 38849/63. Heading H3B. In a parametric amplifier the pump frequency is varied. An input signal of frequency fs from antenna 2 is passed through circulator 3 to parametric amplifier 1, the non-linear element of which may be a ferrite or an Esaky diode, and which is pumped by frequency fp from oscillator 4. The pump frequency is varied under the control of a control voltage derived from computer 6 which is connected to the output of the parametric amplifier through wavemeter 14 and receives a voltage proportional to the central frequency of the input signal Fs. Computer 6 computes the voltage to be applied through amplifier 5 to oscillator 4 so that the pump frequency fp satisfies the relation for all variations of the signal frequency fs, xhere Fi is the central frequency of the idler circuit of the amplifier, and the gain at frequency fs is high. If the Q-factor Qi is made large compared to the Q factor Qs of the signal circuit then #fp##fs and the arrangement of Fig. 3 (not shown) may be used in which the computer is replaced by a mixer which receives the frequency fs from the output of the circulator and the pump frequency fp from the oscillator. The output of the mixer fp-fs in turn controls the pump oscillator so that the pump frequency is controlled by the input signal fs. In the arrangement of Fig. 4 (not shown) the idler frequency fi is compared with a fixed reference frequency in a mixer and a control voltage derived from the frequency difference controls the voltage which in turn controls the pump oscillator. In the arrangement of Fig. 5 (not shown) a further parametric amplifier which is arranged to oscillate and also has its pumping frequency varied is combined with the parametric amplifier to provide a radar unit.
Patent GB-1319895-A (GB)
Title: Connection nut assemblies for glow plugs in pre-heating systems  of diesel engines
IPC: F23Q7/00
Filed: 1971-08-19
Abstract: 1319895 Nuts ROBERT BOSCH GmbH 19 Aug 1971 [22 Aug 1970] 38869/71 Heading F2H [Also in Division H2] A connection nut for glow plugs in pre-heating systems of diesel engines comprises two partsone part is a tubular member 15 of plastics material which is shrunk on to the other part 10 and the other part 10 comprises a threaded bore and may have a screw-driver slot 13 or a hexagonal recess at one end, a reduced neck portion 11 and bevelled end portions. The outer surface of the part 10 may be cylindrical or hexagonal in cross-section.
Patent GB-365754-A (GB)
Title: Improvements in or relating to electrodes for batteries, accumulators and other electrical apparatus
IPC: H01M4/96
Filed: 1930-12-30
Abstract: 365,754. Galvanic batteries ; electrolytic rectifiers. SOC. ANON. LE CARBONE, 37, Rue de Paris, Gennevilliers, Seine, France. Dec. 30, 1930, No. 39169. Convention date, Nov. 17. [Classes 37 and 53.] An electrode for use in a galvanic battery, electrolytic rectifier or the like, is composed of carbonized fabric which may be activated. The fabric may be wrapped on a porous rod or perforated tube, or, as shown in Fig. 1, may be wrapped round a conducting gauze cylinder a as shown at g. In the form shown in Fig. 4, the carbonized fabric g is wrapped round supports a, a<1> to form the positive electrodes of a multiple element battery. Specifications 180,982, 190,101, and 236,884, [all in Class 53, Galvanic batteries], are referred to. Reference has been directed by the Comptroller to Specification 2776/82, [Class 53, Galvanic batteries].
Patent GB-1428596-A (GB)
Title: Non-return valve
IPC: F16K15/06
Filed: 1974-09-09
Abstract: 1428596 Valves GUSTAV F GERDTS KG 9 Sept 1974 [22 Nov 1973] 39224/74 Heading F2V In a spring-loaded non-return valve a spring 5 abuts an abutment 6 having three radial supporting arms 7 the free ends 8 of which provide support in an axial direction by contact with an inner face of the valve housing 1. The abutment is centred in an outlet opening 11 by the centring formations 12 and held in place by a split wire locking ring which engages in a groove 14 in the housing and in recesses 13 in the arms 7. A bent portion (17) of the wire, Fig. 2 (not shown), engages one of the arms to prevent relative rotation. Steps 21, 22 in the valve closure member 4 and the abutment 6 allow for the use of different loading springs. A guide stem 19. screwed into the closure member 4, slides in a central boss 18 of the abutment.
Patent GB-843695-A (GB)
Title: Process for the manufacture of diphenyl ethers
IPC: C07D263/42
Filed: 1956-12-24
Abstract: The invention comprises compounds of the general formula: <FORM:0843695/IV(b)/1> (wherein X represents an acyl group, R1 a hydrogen atom or an alkyl, aralkyl or acyl group, R2 a hydrogen or iodine atom or an amino, substituted amino or nitro group, and Y a hydrogen atom or a methyl group), and a process for the manufacture of substituted diphenyl ethers wherein 3-iodo-5-nitro-4-hydroxybenzaldehyde is reacted in the presence of a tertiary organic base with an aliphatic or aromatic sulphonic acid halide and the product reacted, without isolation of the ammonium compound formed, with a phenol of the general formula: <FORM:0843695/IV(b)/2> (wherein R1 represents a hydrogen atom or an alkyl, aralkyl or acyl group and R2 and R3 each represent a hydrogen or halogen atom or an amino, substituted amino or nitro group, or R1 may form part of a ring with R2 or R3, the resulting compound of the general formula:  <FORM:0843695/IV(b)/3> is condensed with an acylaminoacetic acid, the resulting oxazolone derivative is split up with the aid of an alkali metal alcoholate or an aqueous solution of an alkali to form the corresponding a -acylaminocinnamic acid or ester thereof, the nitro group or groups is or are reduced to an amino group or groups, the latter is or are replaced by iodine by way of the diazonium compound, if desired the double bond in the resulting 3:5-diiodo-4-phenoxyacylaminocinnamic acid derivative is hydrogenated with hydriodic acid and red phosphorus, and, if desired, a further iodine atom is introduced into the 31-position by the action of potassium p-toluenesulphoiodamide in an alkaline medium. Specification 642,159 is referred to.
Patent GB-1234977-A (GB)
Title: Temperature responsive control device
Inventor: ROGNON ARMAND
IPC: F02D17/04
Filed: 1968-08-20
Abstract: 1,234,977. 977. Temperature responsive actuating elements. A. ROGNON. Aug. 20, 1968 [Aug. 31, 1967], No. 39762/68. Heading G1D. A temperature responsive control device comprises a liquid filled system (not shown) including a probe disposed in the area wherein temperature is to be monitored, and connected to a bellows within a box 4, the bellows acting on one end of a lever 5 pivoted at 6, the other end of the lever engaging with a ring stop 7 on a slide 8, the arrangement being such that an attainment of a predetermined temperature, the lever 5 is pivoted free of the stop 7 allowing the slide 8 to move under the action of a spring 9. The device is described as being used for stopping an internal combustion engine when the exhaust temperature thereof rises above a predetermined limit, and the probe is therefore situated in the exhaust of the engine. A spring (not shown) maintains the lever 5 in engagement with the movable end of the bellows and the slide 8 when released acts on a pivoted lever 11 to close a butterfly valve 16 in the engine inlet. A resetting plunger may be provided to hold the lever 5 free of the stop 7 whilst the device is reset after actuation.
Patent GB-927313-A (GB)
Title: A process for the continuous manufacture of cuprous chloride
IPC: C01G3/05
Filed: 1959-11-24
Abstract: In a process for the continuous manufacture of cuprous chloride solution, a reaction vessel is charged at the top with copper and with hydrochloric acid and/or alkali metal chloride or alkaline earth metal chloride solution, a body of these reagents being maintained in the vessel, chlorine gas is introduced at a point 2/3 up the vessel, the liquid below the chlorine inlet being heated to just below the boiling point, so that the cupric chloride formed above is reduced to cuprous chloride by the copper in the lower part of the vessel, and cuprous chloride solution is withdrawn at the bottom of the vessel. Examples are given.
Patent GB-1097634-A (GB)
Title: Novel thiophosphonic acid esters and their use in controlling insects and other pests
IPC: C07F9/6553
Filed: 1966-09-07
Abstract: 1,097,634. Pesticidal composition. MOBIL OIL CORPORATION. Sept. 7, 1966 [Sept. 20, 1965], No. 39912/66. Heading A5E. [Also in Division C2] A pesticidal composition comprises a major amount by weight of an inert carrier and a pesticidal amount of a compound of the formula:- wherein R and R<SP>1</SP> are C 1 -C 4  alkyl, A and B are the same or different and are selected from H, C 1 -C 12  alkyl, alkoxy containing up to 12 carbon atoms, C 1 -C 12  alkylmercapto, halogen, nitro, cyano, thiocyano, sulphonic (S0 3 H), sulphonamide and -C(O)M wherein M is - OH, -OCH 3 , -OC 2 H 5 , -C 1 -C 6  alkyl, -NRR<SP>1</SP>, -NHNRR<SP>1</SP> where R and R<SP>1</SP> are H or C 1 -C 6  alkyl, X is 0 or S, and the broken double bond indicates a double bond or a double bond fully saturated by hydrogen. The carrier may be an inert solid, water or an inert organic solvent. The composition may contain a wetting agent and may be in the form of a solution, emulsion or dispersion or may be applied as an aerosol.
Patent GB-994541-A (GB)
Title: Improvements in method and apparatus for contacting a gaseous fluid with a granular material
IPC: B01J8/02
Filed: 1963-10-10
Abstract: 994,541. Filtering gases; contacting solids and gases; gas adsorption apparatus. A. M. SQUIRES. Oct. 10, 1963 [Oct. 16, 1962], No. 40009/63. Headings B1F, B1L and BIT. A gaseous fluid-solids contactor comprises perforate walls 7, 8 retaining a bed of granular material 6 which has free surfaces 61 adjacent the wall 8 ; gas enters from 38 into passage 27 and through the granular bed into passage 24, and means is provided for a reverse surge flow of gas periodically in order to remove a portion of the granular material adjacent and including the free surfaces 61. Wall 7 is of wire mesh and wall 8 comprises inclined louvres 18. The apparatus may be used for separating fly-ash from furnace exhaust gas using sand as the granular material. Gas is drawn through the filter panel by means of a blower 48. Periodically valve 51 connected to high pressure gas tank 50 is opened quickly to produce a reverse gas surge which causes a mass movement of the granular material so that the contaminated portion spills over into bin 34, being replaced by fresh material from reservoir 19. In a modification, Figs. 5 and 6 (not shown), the louvres are of greater width and at a smaller angle to the horizontal, the spaces between the louvres being filled with the solid material ; this arrangement is suitable when reaction takes place between the gas and the solid. Other gas-solid contacting processes referred to are coal gasification, catalytic contacting, and gas absorption or adsorption. A number of panels may be arranged in parallel with adjacent panels facing opposite directions.
Patent GB-1064479-A (GB)
Title: Improvements in and relating to magnetic recording apparatus
IPC: G11B5/127
Filed: 1963-10-11
Abstract: 1,064,479. Magnetic head. PHILCO-FORD CORPORATION. Oct. 11, 1963 [Oct. 12, 1962], No. 40188/63. Heading G5R. To eliminate or reduce cross-talk due to flux leakage, the read and write heads are combined and formed of a preferably E-type core member 9 and a co-operating core member 13. The write coil 10 is disposed on the centre leg of the E core or it may be in two equal opposed halves on the end legs thereof, Fig. 4 (not shown) (in which case the centre leg of the E may be dispensed with, Fig. 5 (not shown)), to produce equal and opposite fluxes in the air gaps 11, 12. The read coil 5 is symmetrically disposed on the core member 13 relative to the E core so that spurious cross-talk signals induced in the respective halves of the read coil cancel each other. The read and write functions of the coils may be transposed.
Patent GB-1007804-A (GB)
Title: Improvements in or relating to internal shoe-drum brakes
Inventor: BROWNYER NELSON REUBEN
IPC: F16D65/22
Filed: 1963-10-11
Abstract: 1,007,804. Internal shoe-drum brakes; bearings. ROCKWELL-STANDARD CORPORATION. Oct. 11, 1963, No. 40265/63. Headings F2A and F2E. In an internal shoe drum brake having brake shoes pivotally mounted on one end at 20, 22, on a fixed support 14, a floating cam means 86 is located between the other ends of the brake shoes 24, 26 and is adapted to spread the shoes apart to actuate the brake against a return spring means 156, the primary shoe 24 being provided with a brake lining 40, 42 of predetermined thickness initially larger than the thickness of the lining 68 of the secondary shoe 26, automatic adjusting means 164, 178 being provided to compensate for wear of the brake linings, the floating cam means 86 being adapted to follow the adjusted position of the primary shoe towards the brake drum as the brake - linings wear. The thickness of the linings of the primary and secondary shoes are of such proportions that both linings will wear out at the same time. The lining of the primary shoe may be of higher coefficient of friction than that of the secondary shoe so that even wear of the linings results. Both shoes are provided with a greater thickness of lining at the centre of the brake shoe where the travel and wear is greatest to compensate for increased wear at this point. The ends of the brake shoes adjacent the cam means 86 are provided with rollers 52, 76 which abut the cam means. The automatic adjusting means, shown in Fig. 4, comprises a first elongated member 164 pivoted to the brake support 14 with a clearance 192 corresponding to the required brake clearance. The end 162 of the first elongated member 164 is secured to the secondary shoe 26 by means of the return spring means 156. The second elongated member 178 slides relatively to the first elongated member 164 and is connected to the primary shoe 24 and friction means 176 provides a predetermined frictional resistance to relative sliding movement between the elongated members which together form a unidirectional extensible strut. The camshaft 88 is mounted for rotation in a universal bearing assembly 101 comprising a bushing of synthetic plastic material housed in a socket assembly 110 attached to a flange 116 secured to the vehicle axle or frame. As shown in Fig. 1, the cam 86 is initially located on the side of a geometric brake centre line 30 opposite to the end of the primary shoe 24. During the course of successive applications of the brake the brake shoe centre line 28 will progressively advance towards the centre line 30 of the brake support 14 swinging about a point 32 due to lining wear on the primary brake shoe 24. An alternative embodiment is disclosed in the Specification wherein the cam-shaft is completely sealed against the ingress of dirt. U.S.A. Specifications 2,923,579 and 2,928,506 are referred to.