baber/WOPTO huggingface dataset:
Patent GB-1451042-A (GB)
Title: Derivation of information from sonobuoys
IPC: G01V1/22
Filed: 1972-01-11
Abstract: 1451042 Sonobuoys; aerials EMI Ltd 10 Jan 1973 [11 Jan 1972] 1324/72 Headings H4L and H4A In one aspect a sonobuoy transmits information at a slower rate than it enters a store; in another aspect radio signals are emitted only when radio transmission conditions are favourable. In an embodiment digitally encoded data from an array of hydrophones is applied sequentially to two shift registers in parallel; data is entered into one register for N seconds and data following in the next (2M-1)N seconds is not entered. Similar 2MN seconds cycles are effected with the second register and 180 degrees out of phase with the cycles of the first register. M is a number chosen to control the read-out rate, as explained in the Specification. "Dithered" sampling times may be utilized. Radio emission when propagation conditions are favourable may be arranged by sensing on the sonobuoy the reception of a pilot signal by an interrogating aircraft and emitting from the sonobuoy when the received pilot signal exceeds a predetermined threshold; otherwise the hydrophone data is stored. The aircraft receiving system may include a beamforming aerial array, electronically steered; the aerials dipoles are placed along the underside of the fuselage and wings or along cables stretched between the wingtips and the nose and tail. Each dipole feeds a pre-amplifier the outputs signals from which are fed to a beamforming matrix of digital phase-shifters at I.F.
Patent GB-1525202-A (GB)
Title: Wire matrix printhead having facility for enabling wirewear correction
IPC: B41J2/275
Filed: 1977-01-13
Abstract: 1525202 Selective printing SINGER CO 13 Jan 1977 01363/77 Heading B6F In a wire matrix print head a bearing 23 for the printing end of styli 13 is adjustable relative to the main styli guide assembly 1. The remainder of the print head may be as disclosed in Specification 1,477,661.
Patent GB-204622-A (GB)
Title: Improvements relating to fasteners for belts and the like
IPC: A44B11/08
Filed: 1923-01-16
Abstract: 204,622. Walker, Ltd., T., and Wood, H. H, Jan. 16, 1923. Grips, sliding wedge and roller type; clips. lever.-In a belt, &c., buckle fastener of the type in which the ends of the belt are connected to the fastener at different distances from its outer face so that the pull on the belt causes one end of the fastener to project outwardly from the belt, a retaining device is provided on the fastener or on the belt to engage this end of the fastener to hold it close to the belt when in use. In the construction shown in Fig. 1 in which one end 4 of the belt is secured to the member 3 hinged at 7 between the side-flanges 2 on the plate 1, the other end 5 of the belt being held against the plate 1 by the roller 6, the outwardly projecting end of the plate 1 ;s held against the belt by snapping the member 3 past the stamped-up projections 8 in the flanges 2. In modified constructions, projections on the member 3 may be arranged to engage in recesses in the flanges 2 or, as shown in Fig. 8, the member 3 may be snapped past spring tongues 8 riveted at 9 to the flanges 2.
Patent GB-157705-A (GB)
Title: Improved process of manufacturing refined iron or steel directly from oxidized titanic iron
IPC: C21B13/00
Filed: 1921-01-10
Abstract: Titanium oxides which may be used as a reducing or refining agent for iron or steel are obtained as a by-product in the treatment of oxidized titaniferous iron of volcanic origin in an electric arc furnace.
Patent GB-657253-A (GB)
Title: A method of manufacturing soft rollers for printing purposes of polyvinyl chloride gelatinized to rubber-like condition
IPC: B41N7/06
Filed: 1949-01-18
Abstract: In forming a soft printing roller an adherent layer of polyvinylidene chloride is first applied to the axle on to which the main body is then moulded in a matrix using polyvinyl chloride with a mixture of non-sweating (ink taking) and sweating (non-adherent) gelatinizers. Tricresyl or trioctyl phosphate, the higher-alcohol esters of phthalic acid, or dibutyl or other sebacates may be used as non-sweating gelatinizers, while lower-alcohol esters of phthalic, abietinic and other acids may be used as sweating gelatinizers, assisted by synthetic resins such as phthalic acid-glycerin-linseed oil resins.  The polyvinylidene chloride may be painted on to the axle using a volatile solvent, thin films of polyvinyl chloride, polyvinylidene chloride, &c. (less gelatinized than the main body material) then being wound on and the axle mounted in a tubular matrix into which a stirred, de-aerated mixture as follows (parts by weight) is poured and gelatinized at 140-180 DEG  C.; finely pulverized polyvinyl chloride 100; tricresyl phosphate 100; dimethyl phthalate 60.
Patent GB-1155812-A (GB)
Title: Electron Multiplier Tube
IPC: H01J43/20
Filed: 1968-01-10
Abstract: 1,155,812. Electron multipliers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 10 Jan., 1968 [13 Jan., 1967], No. 1455/68. Heading H1D. An electron multiplier comprises an input semi-transparent photo-cathode 1 formed on the inside of a glass front plate 2, a plurality of dynodes S each supported from a disc D sealed through the envelope, and an output electrode 18 connected to a coaxial line output 20, all the electrodes being formed as surfaces of revolution. In section the photo-cathode comprises two arcs of circles having centres on the first dynode S 1 . A first focusing electrode F 1  connected to the photo-cathode comprises a rod 5 and a tube 6, and a second focusing electrode F 2  is connected to a terminal 7. Accelerating electrodes A 1  and A 2  are connected to the first dynode S 1 . The odd-numbered dynodes are connected to respective annular supports 11 by tags 12, each support 11 being connected to a disc D by a further tag 13. The even-numbered dynodes are each supported by a pair of crossed wires 14, 15 secured to a support 16 joined to a disc D. The final electrode comprises a cylindrical anode 18 joined by a conical member 19 to the inner conductor of the output line; the outer conductor of the line is connected to a conical shield 22, and at 23, 24 the tube includes an integrated capacitance for decoupling the electrodes.
Patent GB-174346-A (GB)
Title: Improvements in internal combustion engines
IPC: F02N99/00
Filed: 1922-01-17
Abstract: 174,346. Matti, M. R. Jan. 10, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Cylinders receiving liquid fuel.-A small uncooled chamber b separated from the combustion chamber or vaporizer a by a narrow neck is provided to ignite the fuel, which is injected by the nozzle d against the water-cooled projection f. The combustion chamber, also water-cooled, may be separated from the cylinder by a narrow neck, and the chamber b may be externally heated at starting. Small quantities of fuel may be injected into the chamber b direct, by a separate nozzle. The invention avoids the use of electric igniters and thermit cartridges at starting.
Patent GB-673185-A (GB)
Title: Improvements in and relating to turbines for operating well boring bits
Inventor: WAGNER GEORGE PETER
IPC: E21B4/02
Filed: 1950-01-19
Abstract: 673,185. Rotary borehole drilling. ENGINEERING DEVELOPMENT CO., lnc. Jan. 19, 1950. No. 1498/50. Class 85. [Also in Group XXVI] A rotary well drilling assembly, wherein the bit is rotated by a turbine operated by the drilling mud, is assembled in the following manner : about the part of the rotor shaft, to the lower end of which is connected the bit, is concentrically positioned by a bearing 26 interconnected sleeves 24, 25 and a stator retaining ring 32, projections 92 on which co-operate with a shoulder 12 to axially position the sleeves, stator and casing relative to the rotor shaft. The rotor and stator rings are now added alternately, the rotor rings being keyed to the shaft whilst dovetail joints on the stator rings prevent transverse or circumferential movement thereof. Projections 97 on a stator ring 39 are positioned between annular ridges on rotor retaining rings which are secured in position by a nut 84. Interlocked to the stator retaining ring is a sleeve part and a bearing housing 42. Over this assembly is slid a sleeve 60 which is connected to the sleeves 28 by keys 30 and the upper end of the bearing housing is secured relative to this sleeve by a spider nut 122 threaded within the sleeve, engaging a nut 52 sealing the end of the housing 42. This sleeve 60 is secured onto the end of the drill pipe so that mud flows down the pipe through the annular passage formed between the housing 42 and the sleeve 60 and into the sleeve 40 by passages at the joint between said sleeve and the housing, thence through the stator and rotor rings to escape through parts 8 and a passage 6 in the rotor shaft. The upper bearing is completely closed at the top, and at the bottom additional protection to that provided by the chevron type packet 98 is given by forming an annular chamber 48 in the housing 42 below the bearing assembly and filling this chamber with grease so that any mud penetrating into the housing must first force the grease from this chamber into the ball races 104, 106 before it can penetrate the races between which are provided spaces 112.
Patent GB-1321391-A (GB)
Title: Device for stitchless connection or joining of the end of  interrupted tubular organs in surgical operations
IPC: A61B17/11
Filed: 1971-01-13
Abstract: 1321391 Joints for tubular organs CESKOSLOVENSKA AKADEMIE VED 13 Jan 1971 [14 Jan 1970] 1573/71 Heading A5R A device, for stitchlessly connecting the severed ends of a tubular organ comprises a ring 1, Fig. 3, over which the organ ends 2 and 3 are pulled and a fastening device 4 which clamps the organ ends and is retained by engagement with a groove 5 in the ring 1. The engagement may alternatively be by means of screw threads Fig. 4 (not shown). In place of the fastening device encircling rings may be used Figs. 1 and 2, not shown). In another embodiment, Fig. 5, two rings 1 and 1a are used, one for each organ end, and are clamped together by an integral bridging piece 8 and a fastener 7. Alternately two fasteners may be employed without the bridging piece, Fig. 6 (not shown). The device is made from a hydrophilic or hydrophobic gel. The rings may have textile reinforcement.
Patent GB-1436984-A (GB)
Title: Constant voltage source circuit method for the separation of castings from casting moulds of san
IPC: G05F3/18
Filed: 1974-01-14
Abstract: 1436984 Automatic voltage regulation FORD MOTOR CO Ltd 14 Jan 1974 [29 Jan 1973] 01613/74 Heading G3X A regulated voltage is supplied to a load by a Zener diode and voltage divider. Variations in the regulated voltage caused by changes in the current through the Zener diode are compensated by connecting a resistor in series with the Zener diode. As shown, a load 28 in the form of a measuring thermistor on a vehicle is supplied from a battery 1 by a circuit including a Zener diode 10 and voltage divider 22, 24. With increasing current, the Zener voltage rises due to its effective internal resistance 20. The load voltage is compensated by choosing the value of a compensating resistor 30 equal to the internal resistance 20 multiplied by the voltage divider ratio. The load 28 is effectively connected across the terminals of a bridge circuit formed by the Zener diode 10, resistor 30 and voltage divider 22, 24.
Patent GB-1369766-A (GB)
Title: Hog skinning
IPC: A22B7/00
Filed: 1973-01-11
Abstract: 1369766 Skinning hogs K J BROWN 11 Jan 1973 [14 June 1972] 1634/73 Heading A2U An apparatus for skinning hogs comprising (a) a conveyor 10, from which the hogs are hung by their hamstrings, (b) a carriage 18, movable on the floor in a direction parallel to the conveyor, (c) tension means 22, 28 attached to the carriage for pulling the head of each hog downward and (d) means mounted on the carriage for pulling the hide from the carcass, which means comprises an upstanding rack 30, an endless chain 38 trained over pulleys at the top and bottom of the rack and a hook mounted on the chain is characterized either in that the top pulley extends the full width of the rack and comprises the conical sections tapering into a groove at the centre or in that the rack comprises two vertical back posts 32, Fig. 4, which in horizontal section define the base of an isosceles triangle, two centre posts 34 either side of the chain at the apex of the isosceles triangle and metal sheets 50 extending from each back post to the nearest centre post. In the preferred embodiment, two tensioning means and two pulling means are mounted side-by-side on one carriage.
Patent GB-713524-A (GB)
Title: Improvements in or relating to variable speed gears
IPC: F16H3/08
Filed: 1951-01-23
Abstract: 713,524. Change-speed gearing. SHEPHERD, G H. Jan. 23, 1951, No. 1678/51. Class 80 (2) Change-speed gearing comprises gears A mounted loosely on the input shaft b and in constant mesh with gears B rotating with a layshaft c, the shaft b having single-act'.ng or doubleacting cam surfaces co-operating with rollers engageable with the bore of any one of the gears A to form a one-way or two-way clutch a. In Fig. 1, the gears A, B, including a reverse idler l and a neutral gear j, are movable axially as a whole by an operating yoke g and flanges h on the gears, the sleeve d of the output gear being splined on the output shaft e. In Fig. 2, shaft b is movable axially by a fork p acting on a freewheel pinion q which, in the neutral position of the gear, meshes with a starter pinion r.
Patent GB-840323-A (GB)
Title: Manufacture of metal powder
IPC: B22F9/08
Filed: 1958-01-09
Abstract: 840,323. Granulating metals. GLACIER METAL CO. Ltd. Jan. 9, 1958 [Jan. 16, 1957], No. 1707/57. Class 82(1) Metal powder is made by introducing a stream of molten metal into a high velocity gas stream, the gas having a temperature of 40‹C. or less. In the particular embodiment, copper-lead powder is made by disintegrating a molten 70/30 copper-lead mixture with Town gas. Suitable apparatus is shown in Fig. 1 and comprises a gas compressor 18, a gas cooler 19, a nozzle 13 in which the gas is allowed to expand and from which it issues as a high velocity stream, and tundish 14 from which, through an aperture in its base, the stream of molten metal falls in front of the nozzle. Solidified metal powder is collected in receptacle 17, and gas leaves blowing chamber 10 through port 16 and is returned to the inlet side of compressor 18. Gas cooler 19 is in the form of a power absorbing expansion motor such as a turbine. According to the Provisional Specification, the gas cooler may be a heat exchanger.
Patent GB-1120344-A (GB)
Title: Reciprocatory pumps and seal diaphragms therefor
IPC: F04B43/02
Filed: 1967-01-12
Abstract: 1,120,344. Reciprocating pumps. GENERAL MOTORS CORP. Jan. 12, 1967 [Jan. 27, 1966; Feb. 9, 1966], No. 1730/67. Heading F1A. In a pump having a pumping diaphragm or piston actuated by a plunger 24, a diaphragm seal 36 is adapted to engage the plunger by means of a grooved hub (46), Fig. 2 (not shown) and a shoulder of the pump casing by means of a grooved annular peripherial surface. A rigid protector member 60 prevents reversal of the curvature of the seal diaphragm.
Patent GB-413582-A (GB)
Title: Method of manufacturing cigarettes
IPC: A24C5/18
Filed: 1934-01-18
Abstract: A method of manufacturing cigarettes consists in spinning tobacco threads from cut tobacco and in wrapping the threads in an interlaced relation about the cigarette fillings.  The tobacco leaves are cut longitudinally into long strips of very small breadth, which are spun by means of known mechanism for spinning fibres of very small tensile strength, the fibres preferably being copiously moistened.  The resulting threads are woven into a fabric, to be used for cigarette wrappers, or may be woven directly in tubular form around the cigarette fillings.  The finished cigarette may be pressed and flattened.
Patent GB-563267-A (GB)
Title: Improvements in start-and-stop mechanisms for sewing machines
IPC: D05B3/08
Filed: 1943-02-03
Abstract: 563,267. Sewing -machines.. SINGER MANUFACTURING CO. Feb. 3, 1943, No. 1830. Convention date, March 12, 1942. [Class 112] A buttonhole or other stitch group sewing-machine is driven at a low speed for short periods in the starting and stopping operations. A shaft 26 is mounted in front of the top-shaft and carries a loose pulley 23 and fast pulleys 24, 25 geared to the top shaft by gearwheels 30 and 36 such that with the belt on pulley 24 the machine runs at a low speed and with it on pulley 25, at a high speed. Depression of the starting rod 59 swings the stop lever 54 clear of the stop cam 41 and a hook 85 pivoted on the rod 59 engages an arm 84 of the belt-shipper 75 moving the belt from pulley 23 to pulley 24, whereby the machine is driven through the low-speed gear. In the first revolutions of the shaft 26, a cam 104 moves a lever 91 to the left and by means of an arm 88 depresses the arm 84 to move the belt on to the high-speed gear pulley 25. The arm 84 is held in this position by a latch 114 and the floor of the cam 104 throws the sliding cam-follower pin 93 out of contact, with the cam where it is locked from return bv a latch 98 and the lever 91 carrying the pin is spring- returned to the position shown in the Figure. In stopping, a cam 117 on the shaft of the feedcam is used to trip the latch 114 and the belt returns to the low-speed gear pulley 24. Thereafter, the feed-cam trips the latch 57 on the starting rod 59 and the latter rises under the pressure of the spring 63 as the stop-lever moves into stopping position. Simultaneously the hook 85 moves up from the arm 84 and the belt-shipper moves the belt on to the loose pulley 23. When the stop-cam 41 depresses the plunger 55 of the stop-lever, the buttonhole cutter is actuated through the levers 69 and 72 and the movement of the lever 69, through a lever .100 is used to remove the latch 98 in readiness for the next cycle. Specifications 18153/03 and 309,771, [both in Class 112], and U.S.A. Specifications 784,291 and 785,061 are referred to.
Patent GB-470687-A (GB)
Title: Improvements relating to welted shoes and welting therefor
IPC: A43B9/06
Filed: 1937-01-22
Abstract: 470,687. Welts for boots and shoes. BARBOUR, P. E., BARBOUR, W. G., and BARBOUR, R. H., (trading as BARBOUR WELTING CO.). Jan. 22, 1937, No. 1915. Convention date, Aug. 4, 1936. Addition to 450,702. [Class 17 (ii)] The two incisions 18, 24 made in the edge of a welt 10 for uppers too short to overlast, as claimed in the parent Specification, are of unequal length and preferably the inner end of the lower one is hook-shaped or turned up at 22 to form a flexible hinge about which the upper-engaging flaps 12, 14 may turn without relative sliding movement on the upper. Specification 452,103 is referred to.
Patent GB-930670-A (GB)
Title: 16:17-methylene-20-keto-steroids and a process for their manufacture
IPC: C07J7/00
Filed: 1960-01-19
Abstract: The invention comprises 16:17-methylene-20-keto-steroids (including 19-nor-steroids) having at ring D the general formula <FORM:0930670/IV(a)/1> wherein Y and Z each represent hydrogen, chlorine, bromine or iodine, and the preparation thereof by treating 16-halomethyl-20-keto-steroids having at ring D the formula <FORM:0930670/IV(a)/2> wherein X represents chlorine, bromine or iodine, and Y and Z have the above significance, with an agent for splitting off hydrogen halide such as alkali metal hydroxides, alkali metal alcoholates in alcoholic solution, or organic bases-particularly collidine. 16:17-methylene-20-keto-pregnenolones prepared by the above process may be oxidised, for example, by the Oppenauer reaction, to form 16:17-methylene-progesterones. 16a -Tribromomethyl-progesterone is prepared by oxidising 16a -tribromomethyl-pregnenolone with cyclohexanone and aluminium isoproprylate. Specifications 850,447 and 874,322 are referred to.
Patent GB-129217-A (GB)
Title: An Improved Tramway Signal.
Inventor: OLDHAM CECIL HERBERT
IPC: B61L5/20
Filed: 1919-01-27
Abstract: 129,217. Oldham, C. H. Jan. 27, 1319. Road signals.-A signal for use by the public to call the attention of tramcar &c. drivers comprises a pair of plates B, connected by a bridge-piece 0 and fitted with red glasses A. The plates are pivoted to a standard and are held in the raised position, clear of a white lamp, (not shown), by a spring D. The plates may be pulled to the lower position. shown dotted, by a string E, in which position the. lamp is between, and shows through, the glasses A.
Patent GB-1462605-A (GB)
Title: Ground-fault detector and circuit-interrupter apparatus
IPC: H02H3/33
Filed: 1975-01-16
Abstract: 1462605 Detecting earth faults CUTLER HAMMER WORLD TRADE Inc 16 Jan 1975 [21 Jan 1974] 1995/75 Heading H2K A neutral-to-earth-fault on a line N completes a positive feedback path around an amplifier OA, and the oscillations thus produced trip a circuit breaker CSB1, 2. The line conductors pass through a first core 29 having a tuned winding 30 coupled to the amplifier input, and the amplifier output is coupled to a tuned winding 32 on a second core 31 linking the conductors. The neutral is earthed at the source, and thus the presence of a neutral-earth fault at any other point completes a conductive loop linking both cores, rendering the amplifier unstable. The oscillations are detected by a transistor Q4, and charge a capacitor C8 to trigger SCR Q 1 and thus trip the circuit breaker. The arrangement is combined with a conventional core-balance transformer 10 for detecting line-to-earth faults. The secondary winding 14 of this transformer is tuned to supply frequency, and any out-of-balance signal is amplified in amplifier OA to switch on a transistor Q5 and thus trigger the SCR Q1. A filter R20, 21, C10, 12 eliminates noise signals. A modified circuit for use with a two-wire line is also described (Fig. 3, not shown).
Patent GB-454827-A (GB)
Title: Improvements in poppet valve seats for internal combustion engines
IPC: F01L3/22
Filed: 1936-01-22
Abstract: 454,827. Cylinders. TENNANT, W. J., 111, Hatton Garden, London.-(Tatra. Works Ltd., Motor Car & Railway Carriage & Wagon Builders ; 200, Kartouzska, Smichov, Prague) Jan. 22, 1936, No. 2072. [Class 7 (ii)] A seat insert for an exhaust valve is formed so that the surface 4 of the valve seat merges with the curved adjacent part 5 of the insert, eddying of the gases flowing past being thereby reduced.