baber/WOPTO huggingface dataset:
Patent GB-624725-A (GB)
Title: Improvements in or relating to radar equipment utilizing the doppler effect for detecting relatively moving objects
IPC: G01S7/35
Filed: 1946-11-20
Abstract: 624,725. Radiolocation; radio receiving systems. SPERRY GYROSCOPE CO., Inc. Nov. 20, 1946, No. 34419. Convention date, Nov. 21, 1945. [Classes 40 (v) and 40 (vii)] In a radar receiver which receives echo signals comprising the radiated carrier frequency and also a frequency shifted signal caused by Doppler effect due to the observed object's radial velocity, the two signals, comprising in effect a carrier with a single sideband, are mixed with oscillations of two frequencies separated respectively above and below the carrier frequency by the intermediate frequency of the receiver so as to produce an output comprising the intermediate frequency and two intermediate frequency sidebands differing in frequency, respectively above and below it, by the difference between the carrier frequency and the Doppler-shifted frequency. This arrangement enables the Doppler frequency to be detected from the pure amplitude-modulated intermediate frequency with a consequent gain in signal to noise ratio. In a simplified radar system (Fig. 1) carrier frequency energy from oscillator 11 is radiated by antenna 12. Echo signals from fixed and radially moving objects in the field of view are received on antenna 13 and passed to mixer 17 provided with heterodyne frequencies from the local oscillator 18. Carrier frequency signals are fed through attenuator 19 to mixer 21 where they are modulated by the output of intermediate frequency oscillator 22; the carrier in the output of the mixer is substantially neutralized by direct signals from its input through phase-shifter and attenuator 24 and 25 and the two required heterodyne frequencies fed to mixer 17. The outputs of mixer 17 include signals of the intermediate frequency and sidebands equally spaced above and below that frequency corresponding to any Dopplershifted frequencies in the received echo signals. The intermediate frequency signals may be amplified and fed to a linear detector 35, the Doppler beat note(s) being amplified and fed to an indicator 37 which may include a frequency meter giving a measure of the radial velocity of a moving object. The system also enables interference created by slowly moving objects, such as swaying trees, close to the receiver to be eliminated as no harmonics of the low Doppler frequency shifts produced are created in the detector because there is no accompanying phase modulation in the applied signal, as in the case where a single sideband signal only is used. Thus, a low-frequency filter is effective against such interference.
Patent GB-1304990-A (GB)
Title: Moulds for moulding non-ferrous metals and alloys
Inventor: DAUDIN HENRI
IPC: C08K3/36
Filed: 1971-07-22
Abstract: 1304990 Foundry moulds RHONE-POULENC SA 22 July 1971 [22 July 1970] 34492/71 Heading B3F [Also in Division C3] A flexible mould for casting metals is made of a vulcanized elastomer having a Shore hardness between 30 and 60, a tensile strength of 40-90 kg./cm.<SP>2</SP> and elongation at break of 200-600%, obtained from a composition comprising (i) a polydiorganosiloxane in which the organo groups are methyl, phenyl or vinyl radicals and there is on average one vinyl radical per 250- 1000 Si atoms, of viscosity 20,000-30,000,000 cp./25‹ C., (ii) an anti-structure agent, (iii) 20-50 wt. per cent of silica, relative to (i), and (iv) 0À1-10 wt. per cent of a heat resistance adjuvant. In the example a composition comprising (i) a trimethylsiloxy-terminated polydimethylsiloxane containing 0À23 wt. per cent methylvinylsiloxane units, of viscosity 25 Î 10<SP>6</SP> cp./25‹ C., (ii) a polydimethylsiloxane diol, of viscosity 40 cp./25‹ C., containing 13 wt. per cent OH groups, (iii) a pyrogenic silica treated with [Me 2 SiO] 4  and (iv) Fe and Mn octoates, is mixed with 2 : 4-dichlorobenzoyl peroxide paste (in silicone oil), and formed into disc-shaped sheets. The disc-shaped sheets are rubbed with talc to render them non-tacky and a pattern of 3 buckles is placed between a pair of sheets, a pouring orifice being provided at the centre of one disc. The sheets are vulcanized in a press at 70 bars pressure at 160‹ C. for 30 mins. then heated for 4 hours at 150‹ C. and 8 hours at 200‹ C. After cooling, runners are cut in the mould and zinc-aluminium-magnesium alloy melting at 435‹ C. may be centrifugally cast therein.
Patent GB-942010-A (GB)
Title: Drag chain device for supporting electrical cables and like flexible feeder means
IPC: B66C13/12
Filed: 1961-09-27
Abstract: 942,010. Taking up slack in flexible members; chains. KABELSCHLEPP G.m.b.H. Sept. 27, 1961 [Jan. 5, 1961], No. 34622/61. Headings B8A and B8B. In a chain device for supporting moving flexible pipes, or electrical cables 20, Fig. 1, in a trough (not shown) running parallel to the track of a mobile crane &c., links 2, 3, 4 articulated for bending to one side only, carry straps 10, 16, Fig. 3, for the attachment of the cables and have rollers 18 for supporting the device in the trough. The links 2, Fig. 6, have flanges 7 on one side preventing deflection of the links 3 to that side and have flanges 8 with bevelled ends 8a limiting the deflection to the required minimum curvature on the other side. The drag links 4 are arranged parallel to the links 3 to supplement the strength of the chain. A crossmember 9 attached to each link 3 supports the cable straps 10, 16, the straps 10 being hinged as at 12 for ease of removal of the cables 20. The rollers 18 are attached to the underside of the cross-members 9. End flanges 9a, 9b carry flexible or like wear strips 28 for engaging the sides of the trough.
Patent GB-1362546-A (GB)
Title: Spacer and grid assembly for nuclear reactors
IPC: G21C3/356
Filed: 1971-07-23
Abstract: 1362546 Fuel elements UNITED NUCLEAR CORP 23 July 1971 [24 July 1970] 34685/71 Heading G6C A fuel assembly spacer grid includes individual spacers each comprising two fuel rod support members which provide resilient and rigid contact points selectively arranged throughout a basic egg-crate grid structure to provide resilient and rigid point support for each fuel rod in the assembly. The spacers are of two types, 15a and 15b, arid each has the support members joined as by welding at their ends 30a so as to capture therebetween a portion 31 of a grid plate 22 separating adjacent fuel rod cells 14. Each spacer 15a has both its support members 30 formed with a resilient spring portion 32 midway along its length and two relatively rigid stop portions (or buttons) 33 positioned on either side of the spring portion 32. The buttons 33 act to prevent permanent yield of the spring portion 32 through excessive deflection. One end of one member and the opposite end of the other member are formed with an abutment surface 35, which surfaces lie in contact with opposed recessed mounting surfaces formed in the side edges of a grid plate 22. Each spacer 15b includes two support members 40, 41, support member 40 being identical in construction to the support members 30 of spacers 15a, as is support member 41 except that the spring portion 32 is in this case omitted leaving only two buttons 33 to provide rigid contact points for the fuel rod. The spacers 15a, 15b are arranged throughout the grid structure to provide on two adjacent sides of each fuel rod cell 14 rigid contact points, and on the opposite sides resilient contact points. In the peripheral fuel rod cells, the rigid contact points on one side of each cell are provided by continuous ridges 20 formed on the outer grid plates 16, while in the corner fuel rod cells the rigid contact points on two adjacent sides of each cell are provided by these ridges 20. A plurality of openings 23, 24 in the grid plates 16, 22 permit free flow of reactor coolant through the spacer grid and about the fuel rods, and also reduce the weight of the grid.
Patent GB-195705-A (GB)
Title: Improvements relating to stud bolts, bolts and the like, and their manufacture
IPC: B21K1/44
Filed: 1921-12-24
Abstract: 195,705. Sacker, F. D., and Davis, W. R. Dec. 24, 1921. Bolts, studs, and boltlike pins. -A bolt having an integral shoulder a' and key a<4>, for retaining a motor-car wheel &c., is formed from a length of heated rod by upsetting in dies b, c and then threading the ends. In a modification, a double length of rod is held in the middle by a split die b and the projecting ends are acted on by two dies c. The rod is then severed to form two bolts.
Patent GB-1276229-A (GB)
Title: A continuous furnace for sintering
Inventor: AUBRY BERNARD
IPC: F27B9/08
Filed: 1970-07-17
Abstract: 1276229 Continuous sintering furnaces COMMISSARIAT A L'ENERGIE ATOMIQUE 17 July 1970 [8 Aug 1969] 34815/70 Heading F4B A continuous furnace for sintering pellets of uranium oxide and/or plutonium oxide comprises sections 10, 12, 14, 20, 22 and 24 forming a tubular enclosure 32 for a support plate 8 carrying molybdenum boats 6, said enclosure being flanked by charging and discharging air locks B and C, inlet pipes 34, 36 and 38 for a reducing or neutral gas, offtakes 16 in furnace section 14 leading to condensers 18, pusher apparatus 48 for feeding boats 6 through the furnace and rams 44 and 54 for charging and discharging the boats. The atmosphere gas may be hydrogen, argon or a mixture of hydrogen and argon or hydrogen and helium. The air locks B and C are delimited by doors 40, 42 and 56, 58, door 42 being removable by charging ram 44 and door 58 by a discharging ram 60. Said air locks are associated with a charging vestibule 11 and a discharging vestibule 26. Each of the aforementioned furnace sections comprises a mild steel casing with refractory lining, flanged joints sealed by 0-rings and is fitted with rollers resting on a fixed bed for ease of movement. Preheating section 12 and heating sections 20, 22 have solenoid wound resistance heating elements 30 suspended from ceramic strips 31. The last section 24 is associated with a water cooling jacket 25 by which boats 6 are cooled to handling temperature before entering vestibule 26. Operation.-Door 42 being removed by ram 44, a tray 46 of six boats is inserted into air lock B. Door 42 is then returned, air lock B purged with nitrogen, door 40 opened and the boats pushed forward by ram 44. As each boat abuts contact 62, ram 44 is stopped and ram 48 pushes said boat into the furnace. When all the boats are in vestibule 11, door 40 is closed. Binding agents from the pellets are swept by the atmosphere gas into the condensers 18. Discharge ram 54 pushes six boats in turn from vestibule 26 into air lock C, door 56 then being closed and the air lock purged. Finally, ram 60 removes door 58 and a tray carrying the six boats.
Patent GB-386326-A (GB)
Title: Improvements in liquid-break electric circuit breakers
IPC: H01H33/70
Filed: 1931-07-10
Abstract: 386,326. Oil-break switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Prince, D. C. ; 1424, Wendell Avenue, Schenectady, New York, U.S.A.) July 10, 1931, No. 34899/32. Convention date, July 10, 1930. Divided on 386,322. Drawings to Specification. [Class 38 (v).] Arc-rupturing devices; springs, arrangement of; switches, actuating.-The Specification describes an oil or other liquid-blast switch in which a number of series-connected breaks are arranged in an insulator bushing, and means are provided for simultaneously opening all the breaks and for producing a flow of liquid thereacross. The switch is the same as that described and illustrated in Fig. 3 (Cancelled) of Specification 386,322 from which the present Specification is divided.
Patent GB-863374-A (GB)
Title: Stabilized karl fischer reagent
IPC: G01N31/16
Filed: 1957-11-11
Abstract: 863,374. Water detection. PHARMACIA A. B. Nov. 11, 1957 [Nov. 9,1956], No. 35023/57. Drawings to Specification. Class 97(3) A stabilized Karl Fischer reagent for the determination of the water content of solids, liquids and gases comprises free iodine, sulphur dioxide, a hydroxylated organic compound, an accelerator usually pyridine, iodide ions and a stabilizing base comprising an organic nitrogen compound having a greater base strength than the said accelerator by at least two powers of ten. Exemplified stabilizers are diethylamine, piperidine, diethanolamine, diisopropylamine or triethylamine. Solvents exemplified are methanol, propynol and ethylene-glycol monomethyl ether. Specification 722,983 is referred to.
Patent GB-160418-A (GB)
Title: Improvements in and relating to connecting rod bearings
IPC: F16C9/06
Filed: 1920-12-13
Abstract: 160,418. Jagoe, J. W. Dec. 13, 1920. Adjusting for wear.-A connecting-rod for internal-combustion engines &c. is provided with an adjustable bearing-block 14 sliding between spaced arms 12 and adjusted to take up wear in the brasses 15, 16 by a nut 22 screwing on a stud 20 lying in a central cavity in the block. Bolts 21 pass laterally through the parts, the block 14 having elongated holes 19 for this purpose. The faces of the arms 12 and block 14 are tapered lengthways as shown, and have also a double taper at each side as indicated at 13. One arm 12 has an oil passage terminating in a dipper 23 and the other is formed with an oil-cup 24 and passage 25.
Patent GB-489370-A (GB)
Title: Improvements in radio receivers
IPC: H03J5/24
Filed: 1936-12-22
Abstract: 489,370. Adjusting-wireless apparatus. MURPHY RAD30, Ltd., MOXON, L. A., and BOYD, J. D. A. Dec. 22, 1936, No. 35177. [Class 37] [See also Group XL] For use in a wireless receiver in which coarse tuning is effected in the local oscillator of a short-wave superheterodyne unit and fine tuning in the input circuit of a receiver for medium or long waves fed from the short-wave unit, the variable tuning element in the shortwave unit has locating means indicating, for example, the middle of each transmission band. Such locating means may comprise a notched disc 25, engaged by an over-ridable sheetmetal detent 28, which is pivoted on a pin 29 engaging in V-shaped notches in side ears 27 so as to have no back-lash and is controlled by a bent leaf spring 30. Alternatively, an unpivoted detent may be used, for example, a spring wire loop engaging the notches in disc 25 or spring-pressed balls engaging perforations.
Patent GB-1255711-A (GB)
Title: Improvements in or relating to toupees
Inventor: STEWART DOUGLAS JOHN
IPC: A41G3/00
Filed: 1969-07-12
Abstract: 1,255,711. Toupees. TOP-PIECE Ltd. July 10, 1970 [July 12, 1969], No.35206/69. Heading A4V. A method of making a toupee comprises laminating together a flexible liner, a film of plastics material and a foraminous fabric base which has hairs attached to it. The three layers are placed over a model of a head and this assembly is placed in a micro-wave oven so that the plastics material, which is thermoplastic and preferably polyethylene, melts and runs into the holes in the liner and base, the thickness of the plastics not being great enough to fill all the holes in the base. When the toupee is removed from the oven the plastics material sets and the toupee retains the shape into which it was pulled of the model of the head. Alternatively the model of the head may be fitted with heating means, or the plastics material may be treated with a chemical solvent which would not attack the liner, base or hairs. It is possible to attach further hairs to the toupee after it has been formed due to the fact that not all the holes in the base are filled with plastics material.
Patent GB-290534-A (GB)
Title: Improvements in, or relating to, electric lighting installations having generators operating at variable speed
IPC: H02J7/16
Filed: 1927-12-29
Abstract: 290,534. Akerman, 0., and Allmõnna Svenska Elektriska Aktiebolaget. Dec. 29, 1927. Exciting.-In a lighting system comprising a variable-speed generator 1, in the exciting circuit of which is an idle or braked motor 3 excited by the opposed voltages of the supply and a regulating battery 6, the motor is started by slight displacement of the brushes or by an auxiliary series winding.
Patent GB-1284157-A (GB)
Title: Interfacial surface generator
Inventor: HARDER RICHARD E
IPC: B29C48/50
Filed: 1970-07-21
Abstract: 1284157 Mixing apparatus DOW BADISCHE CO 21 July 1970 [15 Sept 1969] 35251/70 Heading B1C Apparatus for mixing fluid flowing along a duct by subdividing the fluid flow stream and recombining the subdivided streams comprises one or more solid bodies 1 arranged in the fluid flow path, each body having passageways 4-7 the inlets and outlets of which are arranged substantially along lines passing substantially through the centres of the ends 2, 3, the line at one end being transverse to the line at the other end. The bodies may be cylindrical, cubic, or may have notched ends, Figs. 5-8 (not shown). The passageways may be circular, square, or triangular in cross-section. The inlets and outlets may be arranged in a staggered fashion about the lines passing through the centres, Figs. 2-2b (not shown).
Patent GB-844450-A (GB)
Title: A machine for cutting pelts
IPC: C14B15/10
Filed: 1956-11-20
Abstract: 844,450. Pinking-machines. KARA KOZESNICKE ZAVODY, NARODNI PODNIK. Nov. 20, 1956 [Feb. 27, 1956], No. 35411/56. Class 31 (1). A machine for pinking skins comprises means 31 for engaging the underside of a skin at spaced locations, means 28 for engaging the upper-side of the skin at the same locations, means 25 for pinking the skin between the locations, and means for moving the upper engaging means and the pinking means to-and-from the lower engaging means in such a manner that the upper engaging means abut the lower engaging means before the pinking means contact the skin. The pinking means consist of wedge-shaped knives 25 secured by screws 23 to a frame 20 which is carried on bearings 17, 18 slidably mounted on upright members 2, 2<SP>1</SP>. A carrier 30, disposed above the frame 20, is also mounted on bearings 34, 35 slidable on the members 2, 2<SP>1</SP> and carries presser pins 28 which are provided with shoulders 45 in engagement with resilient blocks 44. The pins pass through apertures in the frame 20 and are located directly above piercers 29 which are mounted on a frame 5 and project upwardly through a slot in a table 62. Vertical movement of the knives 25 and presser pins 28 is imparted by rods 13, 14 connected at one end to the bearings 17, 18 and at the other end to cranks 9, 10 mounted on a shaft 8. Springs 40, which are attached to the rods 13, 14, maintain the presserpin carrier 30 in contact with the knife frame 20 during the first part of the downward movement of the carrier and frame until the presser pins engage a skin which is disposed flesh side up on the piercers 29. The knives continue on their downward travel and cut the skin between the pins after which they, and the presser pins, return to their starting position. Since a pinking operation requires only one to-andfrom movement of the knives and pins, a singlerevolution clutch 51 is mounted on the shaft 8 and driven by gearing 48, 54 and a belt-driven pulley 56 from an electric, hydraulic or pneumatic motor 59. Operation of the clutch is by a handle 60 on a shaft 61 or may be by a togglelever, pedal or electric switch. A scale is provided on the table 62 to enable skins to be cut to known lengths.
Patent GB-1027015-A (GB)
Title: Improvements in or relating to magnetic storage elements
IPC: G11C11/06
Filed: 1963-09-09
Abstract: 1,027,015. Circuits employing bi-stable magnetic elements. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 9, 1963 [Sept. 18, 1962], No. 35465/63. Heading H3B. [Also in Division H1] A magnetic storage device includes a length of ferromagnetic film 10, Fig. 1, having in it at least one aperture 12 through which or each aperture is threaded a write conductor 14 for establishing a remanent magnetic field in the periphery of the aperture in one circular direction or the other and a sense winding 20 coupled to the strip in which is induced an output signal due to changes in the magnetic field in the peripheral areas of the or each aperture when a read out current passes along the film. The output signal induced in the winding 20 when a positive or negative read current pulse + Is or - Is passes along the strip when the remanent flux is in a clockwise direction (binary 1) comprises a positive pulse followed by a negative pulse, Fig. 2 (not shown). When the remanent flux is in an anti-clockwise direction (binary 0) the induced output signal comprises a negative pulse followed by a positive pulse. Fig. 3 illustrates the magnetic flux existing and induced at points 50, 51, 52, 53 around aperture 12, the solid arrows indicating the magnetic fields at the front surface of the film 10 and the dotted arrows the magnetic fields at the rear surface of the film as viewed. The matrix array of Fig. 4 comprises three strips of film 160, 151, 152, each being provided with four apertures. Information is read into the store by using individual write lines for each aperture as in Fig. 1 or by using a coincident current technique employing two sets of coordinate write conductors (not shown), each aperture being threaded by two write lines. To read out information from a word the appropriate switch of 170, 171, 172 is closed so that a sense current pulse - Is flows through the strip. Signals are induced in the sense windings 200- 203 indicative of the state of the bits and passed to sense amplifiers 210-213. The latter may be sampled as soon as the switch is closed and the strobing pulse finishing before the switch is opened so that a positive signal produced by the amplifiers indicates a " 1 " and the absence of a positive signal indicates a " 0." In the arrangement of Figs. 5 and 6 (not shown), a constant bias current is applied to the metallic film in addition to the sense current pulses.
Patent GB-528173-A (GB)
Title: Improvements in and relating to screw and nut gearing, particularly for use in steering gear for motor vehicles
IPC: B62D3/08
Filed: 1939-10-26
Abstract: 528,173. Screw-and-nut gearing. BROMILOW & EDWARDS, Ltd., and SWIFT, H. W. Oct. 26, 1939. No. 35505. [Class 80 (iii)] In a screw-and-nut gearing, e.g., for vehicle steering gear, wherein balls 8 are employed between the threads of the screw 1 and the nut 5, and a return conduit 10 for the balls is provided, the nut 5, according to the invention, is furnished with end caps or collars 11, 12 providing tangential ports for the balls and having unions 23, 25 for the conduit, the end collars being removably secured to the nut proper. The collars are rebated, and flanged at 13, 14 for securing by bolts 15, 16. The end collars are each furnished with a deflector 26, Fig. 2, which projects tangentially into the helical channel of the thread. Movement of the nut in each direction is limited by shoulders 27, 28. Lubricant may be supplied to the screw-threads and balls through a lubricator 29 on the nut which may have the usual lateral spigots 30, 31 for connection through a yoke to the steering link. In modifications, (1) two rows of balls are employed between consecutive threads of the screw and nut and the opposed bearing surfaces are in a direction inclined to the screw axis and, (2) the balls are located in grooves in surfaces of the threads perpendicular to the screw axis.