baber/WOPTO huggingface dataset:
Patent GB-1387249-A (GB)
Title: Radio navigation receiver
IPC: G01S1/40
Filed: 1973-07-19
Abstract: 1387249 Radio navigation STANDARD TELEPHONES & CABLES Ltd 19 July 1973 34454/73 Heading H4D Relates to a radio navigation system in which a Doppler-effect beacon commutates a first radio frequency to a linear array of aerials so as to produce constant velocity bi-directional scanning of the array and transmits simultaneously a reference signal on a second frequency as, for example, in Specification 1,234,541. To effect digital counting of the Doppler-beat signal in a receiver only during defined portions of the scan, the receiver includes means responsive to the Doppler-beat signal for determining the time at which the direction of each scan is reversed and means synchronized thereby for determining the Doppler-beat frequency during each scan. In an embodiment the receiver's detector 2 is followed by a band-pass filter 3, for reducing multi-path signals, and a zero-crossing detecting counter 4. The synchronization of the counter is achieved by a stage 5 which incorporates first, D1 Fig. 2, and second, D2, differentiators, a rectifier D1, a "flywheel" circuit comprising a transistor T with a high-Q resonant circuit L, C connected to its collector, a 90 degree phaseshifter P and a zero-crossing detector Z; waveforms of the operation of stage 5 are given Fig. 4 (not shown). Counting is arranged to begin shortly after the beginning of each scan by arranging that a trigger circuit is energized by each scan commencement zero crossing after a short delay, thereby reducing the effect of spurious signals passing through filter 3 at the instant of scan change. For a better immunity to noise and to phase jumps arising from "hard" commutation another embodiment Figs. 3 and 5 (neither shown) includes a voltage-controlled local oscillator whose frequency is adjusted, via a zero-crossing detector and a difference-frequency detector, to equal the average zerocrossing rate of the Doppler-beat signal, and which is applied, as is the latter signal, to a balanced mixer the output from which is narrowband filtered and then differentiated, the ensuing waveform being applied to a circuit identical with that following differentiator D2 of the first embodiment.
Patent GB-416223-A (GB)
Title: Improvements in walls, floors and roofs, and building elements therefor
IPC: E04B1/24
Filed: 1933-12-07
Abstract: 416,223. Walls ; floors; roofs ; slabs. ERDMANN, K., Radenthein, Carinthia, Austria. Dec. 7, 1933, No. 34472. [Classes 20 (iv) and 87 (i).] A building slab for a wall, floor or roof comprises a steel frame 1, which encloses an insulating filling 2 such as wood wool and cement, and projects so far beyond the surface of the filling or a layer of plaster 3 thereon as to permit a welding operation for connecting adjacent slabs to be effected at the projecting ledges 4 of the frame without affecting the filling or the plaster layer 3. The projecting ledges 4 may be formed to provide a V-shaped recess to accommodate the welding seam 5, and they may be bent to a curved formation as shown in Fig. 2 or at right angles as shown in Fig. 6. After welding, the joints are covered by an insulating material. For example, the edges may be embedded in concrete or asphalt 8 covered by brass or iron bars, which may be arranged as shown at 9 in Fig. 6 or be clipped over the curved edges of the frame as shown at 10 in Fig. 2. Alternatively, the edges 4 may extend outwardly in contact as shown in Fig. 5, and a felt strip 6 may be clamped in position by a bar 7. If desired, on the inner side of the building, the space between the bent edges 4 and the bar 10 may be adapted to accommodate electric wiring 11 or gas or water pipes as shown in Fig. 2. The cross-section of the frame members is such as to provide hollow spaces between the slabs. For walls and roofs, the ledges 4 project beyond both surfaces of the filling, and to facilitate draining of the roof, the roof slabs are provided with thickened edges 14<1> as shown in Fig. 4. For floors, the ledges 4 project only beyond the lower surface of the slabs. To permit a window or door to be fitted in a slab without the provision of special frames, the vertical frame members of the slab are provided with a stepped formation 12, 13 as shown in Fig. 1, and similar transverse members are provided for bordering the opening. The filling 2 may be cast into the steel frames 1, or the frames may be provided around previouslycast filler slabs which may be in one or more layers.
Patent GB-605355-A (GB)
Title: Improvements in or relating to electron discharge tubes
IPC: H01J19/00
Filed: 1945-12-20
Abstract: 605,355. Thermionic valves. PHILIPS LAMPS, Ltd. Dec. 20, 1945, No. 34504. Convention date, Dec. 30, 1940. [Class 39 (i)] The electrodes are divided into an inner and an outer group, each group being symmetrical about an axial plane and the planes being inclined at an acute angle. The inner group must contain the cathode 1 and the first control grid 2; in an octode, it may include rod-like oscillator anodes. The outer group must contain the intermediate screen grid 6, the second control grid 3 and the anode 5. The space charge in front of the second control grid is reduced and electrons, returning from that space charge towards first control grid are more easily collected; to this end, the supports 7 for grid 6 are thickened, or part of this grid may be made solid. A second screen grid 4 is provided. The subject-matter is identical with that of Specification 556,461.
Patent GB-176862-A (GB)
Title: Portable collapsible collecting contrivances
IPC: A01G1/12
Filed: 1920-12-07
Abstract: 176,862. Case, E. R. Dec. 7, 1920. Sacks and like bags.-A collapsable device for removing leaves from lawns, dust from floors &c., applicable also as a collapsable bucket, comprises a number of hinged frames or rods covered with canvas or netting. The device can be laid flat on the ground and after leaves, &c. have been swept on to it a cord 11 passing through eyes 10 is pulled to gather up the edges to form an open topped container in which the material is removed. A device as shown in Fig. 5 may be mounted on castors for use on a floor. Fig. 1 shows a device particularly for use on lawns consisting of frames A, E and spreading- members 4, one edge having fixed to it a flexible rake 9, supported by jointed thrust rods 5.
Patent GB-480136-A (GB)
Title: Improvements in and relating to concentric high-frequency cables having air-space insulation
IPC: H01B11/18
Filed: 1936-12-17
Abstract: 480,136. Cables. SIEMENS & HALSKE AKT.-GES. Dec. 17, 1936, No. 34695. Convention date, Dec. 17, 1935. [Class 36] The outer conductor and sheathing of a concentric high frequency cable having airspace insulation consist of elements, such as bands or wires, stranded in the same direction at a pitch angle greater than 45‹, the relation between the ratio of the lengths of lay a1/a2 of the stranding layers and the ratio of the diameters d1/d2 of the stranding layers being determined by the equation a1/a2={d 1 /d 2 }<x> where x is not less than 1 and not greater than 2. Preferably also, where b1 and b2 are the mean circumferences of the stranding layers. A cable comprises a central conductor 20, helical spacer 21, insulating envelope 22, outer conductor 23, binding band 24, insulating sleeve 25, watertight jacket 26, jute compound layer 27, stranded flat wire sheathing 28 and outer protective layer 29, the layers 23 and 28 having the same direction of twist and the lengths of lay and diameters of such layers being chosen in accordance with the above equation.
Patent GB-977965-A (GB)
Title: Pentafluorophenyl compounds and their manufacture
Inventor: BUXTON MICHAEL WILLIAM
Filed: 1961-09-27
Abstract: The invention relates to compounds of the formula RCOO(CH2)nNR1R2, in which R is a pentafluorophenyl, a pentafluorophenylalkyl or a pentafluorophenylalkenyl group of 6, 7 or 8 carbon atoms, R1 and R2, which may be the same or different, are hydrogen atoms or alkyl groups of 1-3 carbon atoms, and n is 2-5.  The compounds are prepared by reacting an appropriate pentafluorophenyl carboxylic acid chloride with an appropriate aminoalcohol.  The reaction may be effected at atmospheric temperature in a solvent, e.g. ether or benzene. Examples are given in which (1) pentafluorobenzoyl chloride and diethylaminoethanol yield diethylaminoethyl pentafluorobenzoate; the hydrochloride and the picrate of the product are described; (2) pentafluorophenylacetyl chloride and diethylaminoethanol yield diethylaminoethyl pentafluorophenyl acetate; the hydrochloride and the picrate of the product are described; (3) a -(pentafluorophenyl) propionyl chloride and diethylaminoethanol yield diethylaminoethyl a -(pentafluorophenyl) propionate; the hydrochloride of the product is described.
Patent GB-639345-A (GB)
Title: Control means for the starting and stopping of perforated bands
IPC: F16H1/16
Filed: 1947-12-30
Abstract: 639,345. Worm gearing. DESMEDT, (nee MARTIN), T. G., and COUTELEN, J. H. Dec. 30, 1947, No. 34868. Convention date, Aug. 5, 1943. [Class 80 (i)] [Also in Group XXXVIII] In an apparatus in which a mechanical operation is controlled by some other operation by means of a perforated pilot-band, the pilot-band may be uncoupled by the operator at will by longitudinal movement of a shaft 4 carrying a worm gear which is thereby uncoupled from the worm 2 on the driving shaft 1.
Patent GB-508359-A (GB)
Title: Improvements in and relating to resilient mountings incorporating rubber
IPC: F16F3/087
Filed: 1938-12-01
Abstract: 508,359. Resilient mountings. GETEFO GES. FUR TECHNISCHEN FORTSCHRITT. Dec. 1, 1938, No. 34950. Convention date, Dec. 7, 1937. [Class 108 (iii)] In a resilient mounting having a main rubber member stressed in compression by the load and an auxiliary member or members adapted to be stressed in compression by a force or forces perpendicular to the load, sliding abutment surfaces are provided between the main and auxiliary members to minimize the mutual effect of the members on each others characteristics. As shown in Fig. 2, a main compression member 1 of rubber is bonded to plates 3, 4 flanged at the edges and auxiliary compression members 7, 7<1> are bonded to the flanges 5, 5<1> and to plates 8, 8<1> which may be made of self-lubricating material, graphited artificial resin or similar friction reducing material. A small clearance may be made between the plates 8, 8<1> and flanges 6, 6<1> respectively so that free compression of the rubber 1 is permitted by a load on the plate 3 while the horizontal forces in the plane of the drawing is absorbed by the auxiliary compression members 7, 71 and the horizontal forces at right angles to the plane of the drawing is absorbed by shear stresses in member 1. In a modification the support comprises one half of that shown in Fig. 2 and in a further modification, Fig. 4 (not shown), an additional side with a member similar to 7 is provided so that horizontal forces in three directions may be absorbed. In Fig. 3, the mounting is circular in shape, the main compression member 10 being bonded to plates 11, 13 of which 13 is provided with a pin 12 slidable in a sleeve 16 bonded to the auxiliary member 15. This sleeve may be gapped at one side to permit the pin to move freely in a lateral direction through the gap so that the member 10 is stressed in shear.
Patent GB-191035-A (GB)
Title: An improved sealing device
IPC: B43M1/00
Filed: 1922-12-22
Abstract: 191,035. Reinhardt & Co., J. Dec. 24, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Sealing.-A sealing-device comprises an electrically-heated container 4 for the wax provided with a discharge opening 6 normally closed by a valve 7, in combination with a hand seal 2 to which is connected the mechanism for operating the valve. The container 4 is attached to the stem 1 of the seal, and the valve-rod 8 is connected to a lever 9 pivoted to the stem 1. A spring 12 is interposed between the handle 11 of the seal and the lever 9 to hold the valve 7 on its seat, and an arm 13 on the lever 9 enables the valve to be opened by the hand grasping the handle 11.
Patent GB-890109-A (GB)
Title: Improvements relating to automatic telephone systems
Inventor: TRUEMAN ROY
IPC: H03K3/45
Filed: 1959-10-16
Abstract: 890,109. Automatic exchange systems; circuits employing bi-stable magnetic elements. ERICSSON TELEPHONES Ltd. Oct. 12, 1960 [Oct. 16, 1959], No. 35182/59. Classes 40 (4) and 40 (9). A magnetic core N having a rectangular hysteresis characteristic and provided with input, read and output windings W1, W3, W4 is used to detect the free or busy condition of a subscriber's line in an automatic exchange system, the core magnetization remaining in a datum remanent state when the line is free so that read pulses are unable to produce output pulses, and the core magnetization being reversed by line current when the line is brought into use whereby each read pulse momentarily returns the magnetization to the datum state against the bias action of the line current, output pulses being then produced for the duration of any interval when the line is busy. In Fig. 1, each subscriber I, II has a separate line circuit associated by two input windings W1, W2 with a magnetic core N. Coupling to the exchange is effected over a transformer having windings T1, T2, T3 and over a symmetrical transistor S. Each core is read repeatedly by pulses applied from terminals P to the respective read windings W3, the pulses applied to respective cores being in different time positions. If a line is calling or busy, output pulses are induced in a circuit R common to the output windings W4, and the time position of these pulses is indicative of the line circuit in use. Dialling pulses are indicated in the output circuit as interruptions of the train of pulses. In an application to party line calling, sharing subscribers IX, IY and IIX, IIY have individual cores NX, NY associated respectively with the negative and positive line wires. The read winding circuit P is common to the two cores of a shared line circuit and each core has a separate output circuit RX, RY. When the line circuit is busy, output pulses appear in both circuits RX and RY, the time position of the two pulse trains being indicative of the line circuit in use. When the line circuit is in the calling condition pulses appear only in one or other of the output circuits, depending on which of the sharing subscribers is calling, while the shared service call button CBX is depressed at the calling subscriber's substation. If the line is calling, and while button CBX is depressed, the pulse train in circuit RX or RY opens a 1-gate G1 after shaping in SS and indicates at OB and OC that a register is required. When CBX is released both output circuits are pulsed, and a 2-gate G2 is opened so that a gate G3 is inhibited and an output appears at OB above.
Patent GB-832240-A (GB)
Title: Improvements in or relating to height gauges
IPC: G01B5/00
Filed: 1956-11-19
Abstract: 832,240. Machine-tool details. RODWELL, J. Oct. 9, 1957 [Nov. 19, 1956], No. 35322/56. Class 83 (3). [Also in Groups XIX, XXIII and XXV] A height - gauge or other device for linear measurement, or for setting a machinetool table, comprises a grooved column 6, a slide 10 guided in the groove, micrometer means 15 for adjusting the position of the slide 10, and a number of equally-spaced fingers 36 extending from the slide 10, a scriber or index-member 37 being inserted between any two of the fingers 36, and having mounted thereon a fastening device 45 cooperating with the fingers 36 to retain it in position between them. As shown, the index member 37 is releasably secured by a wedgeclamp 45 (see Group XXV), between any pair of adjacent fingers 36. The range of adjustment of the micrometer 15 is equal to the distance between the upper edges of two adjacent fingers 36, and the slide 10 is held against the micrometer rod 20 by a compression spring 30 (not shown). The device may also be used for setting the table of a machine-tool in a preselected position; in this case it is constructed for use horizontally.
Patent GB-337228-A (GB)
Title: Improvements in potato setting machines
IPC: A01C9/00
Filed: 1929-11-19
Abstract: 337,228. Ljungdahl, J. F. Nov. 19, 1929. Flanting-machines. - In potato-Setting machines, of the type wherein the potatoes are fed into drop tubes provided with dampers so that when these are opened the potatoes drop on to needles fixed on conveying means and are transmitted to a setting tube, in order that the driving speed may be increased, two drops with dampers acting alternately are provided for each furrow. Potatoes are taken from a container 3 by bucket elevators 4 to the drop 5. The damper 7 drops them on to needles 20 to which only one potato at a time can be fixed. The needles 20 are fixed on an endless chain 19 which conveys the potatoes to the setting tube 6 where they are removed by wiping plates 21. The chain is driven by a sprocket-wheel 17, driven by a wheel 15, driven intermittently by a wheel 14, and held fixed during rest by a cam arrangement. There is one wheel 17 and chain under each drop tube. The wheel 14 which is driven by the supporting wheels 2 carries pins 13 which act alternately on the arms 10, 11. These arms operate by mechanism 12, 8, 9 the dampers 7 in each of the drop tubes 5. They also operate dampers 23 in the setting tube 6 so that the damper in one setting tube is opened simultaneously with the damper in the drop tube connected to the other setting tube. The two setting tubes converge into a common tube 6a from which the potatoes are set.
Patent GB-1022123-A (GB)
Title: Improvements in or relating to machine-tool spindle mountings
IPC: F16C35/08
Filed: 1962-09-17
Abstract: 1,022,123. Bearings. ESCHER WYSS A.G. Sept. 17, 1962 [Sept. 16, 1961 (2)], No. 35387/62. Heading F2A. A machine - tool spindle mounting comprises, in combination, a radial bearing 8 between two hydrostatic axial bearings, formed by axiallyopposed faces of the stationary bearing body 9 and adjacent faces of the flange 2 and disc 3, and taking the bending or tilting moments acting on the spindle 1, which can be swivelled within the axial-bearing clearances, the axial bearing surface having liquid-lubricant pressure-cushion stations such as 10, 10<SP>1</SP>, 12 and 12<SP>1</SP> (in depressions) around it. The inclination of the axis of the spindle is varied by influencing the lubricant flow through the cushions. With one pair or more of cushions with bearing surfaces acting in the same direction axially of the spindle, the said flow may be influenced by varying the lubricant-film thickness for the or each pair in the opposite sense. With oppositely-acting bearing surfaces the film thickness is varied in the same sense. With each axial bearing having at least three cushions the said lubricant flow may be influenced by varying the ratio of the amounts thereof flowing through the cushion of at least one bearing. In the form shown each axial bearing has four cushions, the said flow being such as to vary in opposite sense the lubricant amounts of diametrically-opposite cushions of the same bearing. There may be a device varying with the direction of the spindle axis to influence the amount of liquid passing through the cushions to regulate to a desired value the said inclination of the spindle axis.
Patent GB-1209094-A (GB)
Title: Electrical dial indicator
IPC: G01B3/22
Filed: 1968-07-24
Abstract: 1,209,094. Measuring length electrically. STANDARD GAGE CO. Inc. July 24, 1968 [July 25, 1967], No.35424/68. Heading G1N. A feeler gauge 16, Fig. 8, for measuring linear displacement is attached to the core 114 of a differential transformer, and associated with an oscillator 116, amplifier 120 and meter 136 in a single portable housing. The front panel 20 Figs. 1, 2, of the housing 10 has a window 24 showing the scale 35 and pointer 37 of meter 136, with five rectangular apertures 28-32 showing on a movable plate located behind the scale the sensitivity range selected by a slider 46 which also controls switch 119 of the measuring circuit, Fig. 8. The spring- loaded stylus 16 in a sleeve 14 which also houses the differential transformer is normally attached to a clamp 60 screwed to the housing 10, but may be detached and mounted on a separate stand, Fig. 6 (not shown).
Patent GB-1486214-A (GB)
Title: Sorting of data
IPC: G06F7/24
Filed: 1974-08-13
Abstract: 1486214 Sorting data SIEMENS AG 13 Aug 1974 [23 Aug 1973] 35542/74 Heading G4M Data in an associative store is sorted into a predetermined order of precedence by using a hunting word for comparison which is varied until only one item of data (one hit) is found which is either the highest or lowest value in the store and by altering the word to successively find the remaining values in the required sequence. In Fig. 1 the values A to H are formed in ascending order by examining with digits 0, 00 and 000 before a hit is made. Value C is read out and the hunting word is changed to 001 and a further single hit is made and D is read out. 00 produces multiple hits as does 01 so 010 is examined to cause A to be read out, 011 has multiple hits so 0110 is examined to read out B and so on. The examination could have been started at 1 and the hunting word decreased to cause read out in descending order. Alphanumeric sorting is performed in a similar manner (Fig. 6, not shown) e.g. by seaching for A, AA, AAA on multiple hits and increasing the least significant letter on a single hit.