baber/WOPTO huggingface dataset:
Patent GB-1404217-A (GB)
Title: Apparatus for classification of particulate materials
IPC: B07B1/06
Filed: 1972-11-16
Abstract: 1404217 Welding by fusion VAC-U-MAX 16 Nov 1972 [11 July 1972] 52985/72 Heading B3R [Also in Division B2] An apparatus for separating sintered agglomerates or slag from reusable flux material in submerged arc-welding operations comprises a hopper 21 connected with a source of vacuum 27, 23 near its top, means 17, 19 for transporting used flux to said hopper means 41 for introducing the used flux within the top of the hopper and below the vacuum connection, a vibratory screen 47 actuated by a pneumatically operated vibrator 49 and disposed within the hopper below the means 41 and at an angle of 15 to 30 degrees from the horizontal, means 51, 53, 55 connected to the hopper above the screen 47 for controlled discharge from the lowermost position of the screen of the agglomerates or slag retained thereon, means 15, 13, 11 for discharging from the hopper reusable flux that passes through the screen and for controlled delivery of same to a point of consumption thereof. The base of a welding electrode 7 is submerged under a mount of welding flux 9 fed to a point preceding the electrode by means of a spreader hopper 11 which delivers a measured amount at a weld seam 5 between workpieces 1 and 3. The used flux is withdrawn by a vacuum pick-up nozzle 17 through a tube 19 connected to a rubber hose 41 which discharges against a liner 43 of resilient material. The top of the hopper 21 is connected through a tube 27 to a Venturi vacuum power unit 23 controlled by a manually actuated regulator valve 33 or by a master valve 35 operated from a control panel 31. Fines carried with the used flux may be prevented from entering the vacuum system by a filter 45 made of cotton twill or mole skin and disposed above the base 41 and liner 43. Alternatively the fines may be removed by a separate vacuum collector connected to the top of the hopper. The vibrator 49 is fed by high pressure air from the output side of valve 35 and is affixed to the bottom of the screen 47. An exhaust port 51 feeds the separated agglomerates and slag from the top of the screen into a transparent plastics hose 53 provided with a vacuum valve 55 delivering into a receptacle 57. The reuseable particles of flux pass through the screen and down a transparent plastics hose 15 provided with a vacuum valve 13 delivering into the spreader hopper 11. In a modification, Fig. 2 (not shown), a second inclined screen of finer size, which may be vibrated in the same manner, is provided below the screen 47 to screen out and retain the reusable flux. The latter is discharged from the top surface of the screen at its lowermost part through a hose and vacuum valve as before, whilst unwanted fines which drop through both screens are discharged through the bottom of the hopper and thence via a tube and valve to a disposal box.
Patent GB-1275893-A (GB)
Title: Treatment of sewage sludge
IPC: C02F11/18
Filed: 1970-11-09
Abstract: 1275893 Sewage treatment FOSTER D SNELL Inc 9 Nov 1970 [25 Sept 1970] 53273/70 Heading C1C A method of solubilizing sewage sludge comprises digesting sludge at an elevated temperature with an aqueous solution of SO 2  at a steam pressure of 30-100 p.s.i.g. in a closed system, the SO 2  being present in an amount equal to 0À2 to 5À0% of the weight of solids in the sludge. The solubilizing treatment is carried out for 10-120 minutes after which time, the solids are separated from the aqueous solution. The digestion is preferably carried out at 252 to 328 F. The resulting aqueous solution may be concentrated by evaporation to form a molasseslike product, containing at least 40% solids of which 85% are organic and 30% proteinaceous.. This product is suitable as an animal feed.
Patent GB-1218018-A (GB)
Title: Synchronisation of oscillators
Inventor: BAADE OTTO
IPC: H04J3/06
Filed: 1967-11-23
Abstract: 1,218,018. Automatic phase control. STANDARD TELEPHONES & CABLES Ltd. 21  Nov., 1968 [23 Nov., 1967], No. 53326/67. Heading H3A. In a synchronizing arrangement for a multistation multichannel system incoming signals are compared with a clock signal in an early/late gating circuit, to produce control signals which vary the division ratio of a divider from which the clock pulses are derived. In the gating circuit of Fig. 3, terminal A is energized at all times during all the last but one channel of a frame, and during all the last channel except for its last bit and terminal B is energized during all of the second channel, and during all of the first channel except for its first bit. The other inputs of the gates receive short pulses from one of each of three master stations I 1 , 1 2 , I 3  at the beginning of channel 1, bit 1. The clock pulses for terminals A, B are derived from a variable ¸n ring counter, the division rate of which is increased to n + 1 or decreased to n - 1 in dependence on the output signals from the two gating circuits. In the divider Fig. 4 (not shown) a first input signal (X) controls the shift direction to increase or decrease the division rate by one depending on whether the signal (X) is in its "0" or "1" condition only during the time that a second signal (SP) is in its "1" condition. When the second signal (SP) is in its "0" condition the first signal (X) is ignored.
Patent GB-1333406-A (GB)
Title: Warning valve for breathe apparatus
IPC: F16K37/00
Filed: 1970-11-10
Abstract: 1333406 Valves AGA AB 10 Nov 1970 [3 Dec 1969] 53343/70 Heading F2V [Also in Division A5] A warning valve for breathing apparatus comprises a valve chamber 1 having a main duct 7 formed in an inlet region thereof and leading from a portion 4 of feed line suitable to feed gas from a pressure gas container to the valve chamber 1, and a valve body 2 which is suitable in a first step to close the main duct 7 after which step there is communication between the feed line portion 4 and the valve chamber 1 through a by-pass duct 10, and in a second step to close the by pass communication to completely shut off the feed line portion 4 from the valve chamber 1. A tubular member 8 is arranged in the inlet region projecting into the chamber 1 under the influence of a first spring 11, said member 8 providing the main duet 7 and presenting a valve seat 9 directed towards the valve body 2 which is biased towards the valve seat 9 by a second spring 3 which is stronger than the first spring 11. The by-pass duct is in the form of a passage 10 in the wall of the tubular member, but alternatively, may take the form of a duct in the valve body or in a wall of the feed line portion (not shown).
Patent GB-1101638-A (GB)
Title: Bulk fertilizer composition
Inventor: HARSHMAN ALBERT GENE
IPC: C05G3/00
Filed: 1965-12-20
Abstract: An NP or NPK fertilizer contains a deliquescent nitrogen compound in the form of a pellet with 2-25% of a thermoplastic binder.  The nitrogen compound is ammonium sulphate, ammonium, sodium, potassium, magnesium, or calcium nitrate or urea.  The thermoplastic binder is asphast, wax, rubber, polystyrene, polyethylene, polypropylene, or ethylene-propylene copolymer. The pellets may have a cross-section and a length of 1/16 to 3/4 inch.  The composition may consist of 25% of a urea pellet and 75% of a PK fertilizer containing ammonium nitrate and a phosphate, the pellet consisting of 88% of urea and 12% of binder, the binder consisting of 90% of asphalt and 10% of microcrystalline wax having a m.p. of above 150 DEG  F.
Patent GB-1467523-A (GB)
IPC: C08L25/18
Filed: 1974-12-16
Abstract: 1467523 Flame retardant polyester moulding compositions CIBA GEIGY AG 16 Dec 1974 [17 Dec 1973] 54295/74 Heading C3R A flame-retardant moulding composition comprises a thermoplastic, saturated polyester, glass fibres and 3 to 30% by weight, based on the total composition, of polytribromostyrene. The composition preferably contains from 5 to 60% by weight of the glass fibres, and from 1 to 8% by weight of antimony trioxide, the percentages based on the total composition. The composition may also contain glass spheres of diameter less than 500 microns. The polyester used in the examples is polybutylene terephthalate.
Patent GB-1403769-A (GB)
Title: Phased array fed lens antenna
IPC: H01Q25/00
Filed: 1972-11-28
Abstract: 1403769 Aerials SPERRY RAND CORP 28 Nov 1972 [20 Dec 1971] 54851/72 Heading H4A An electronic scanning system comprises a source of radiant electromagnetic energy, array means including feed elements which are coupled to said source for producing a first beam having a non-planar wavefront, and controllable focal properties, and lens means which are responsive to said first beam and which implement a phase gradient for producing a directive second beam having a plane wavefront, a variable range of scan, and an attendant variable gain. As described, an electronic scanning system 10, Fig. 1, comprises a substantially spherically shaped lens 11 which has a plurality of radiator elements 14 on its exterior coupled by respective phase delay elements 13 to respective ones of a like plurality of collector elements 12 on its interior. An array means 15 is disposed within the lens 11 and comprises a plurality of radiator elements 20, which face towards the collector elements 12, a like plurality of collector elements 16, which face towards a feed horn 21, and a like plurality of electronically controlled phase shifters 17, each of which couples an element 16 to a respective element 20. In operation, spherical wavefronts from the feed horn 21 are converted into by the array means 15 into non- planar wavefronts. These are then converted by the lens 11 into planar wavefronts, which are directed at an angle #<SP>1</SP> to the normal N. The phase delay elements 13 may have fixed values, and a formula is given for their determination in terms of # (the angular displacement from the normal N). The array means 15 may be controlled to produce a converging beam when directed along the normal N towards the lens 11, and to produce a diverging beam when directed away from said normal. In this way, the system may provide a broad beam with low gain in the vertical direction, and narrow, high gain beams in directions near the horizontal (Fig. 11, not shown). The lens may be cylindrical instead of spherical, and the array means may be linear or planar. The radiator and collector elements of the lens may be dipoles, with phase delay elements constituted by lengths of flexible cable (Fig. 7, not shown). Alternatively, the said elements may be open ended circular waveguides with dielectric phase delay coupling elements (Fig. 8, not shown). In another embodiment the lens means is a solid dielectric lens, and may constitute the nose cone of a high speed aircraft, when it could be made of titanium dioxide (Fig. 9, not shown). The exterior is of hyperbolic shape, and the required phase delays may be obtained either by fabricating it from materials of different refractive indices or by variation of its wall thickness from the base to the apex.
Patent GB-1408120-A (GB)
Title: Blower attachment
IPC: F04D17/16
Filed: 1973-11-29
Abstract: 1408120 Centrifugal blowers KULMBACHER KLIMAGERATE-WERK GmbH & CO BETRIEBS KG 29 Nov 1973 [30 Nov 1972] 55327/73 Heading F1C A blower attachment comprises a housing 4 which is open at one side thereof and is mountable at that side on a mounting surface, e.g. a wall 1 of an electric storage heater, and a blower unit which is shrouded by the housing and comprises a motor 5 attached to the housing and an impeller mounted on the motor shaft 6. A suction opening 8 is provided in the housing 4 and a discharge opening 9 is provided in the wall 1, or vice versa.
Patent GB-1195295-A (GB)
Title: Improvements in or relating to Centrifugal Fans and Blowers
Inventor: HYNES TERENCE
IPC: F04D29/62
Filed: 1967-12-08
Abstract: 1,195,295. Resiliently mounting electric motors. SMITHS INDUSTRIES Ltd. 31 Jan., 1969 [8 Dec., 1967], No. 55971/67. Heading H2A. [Also in Division F1] In a centrifugal fan or blower the impeller 18, Fig. 1, and its driving motor 15 (e.g. a threephase electric motor) are mounted within a casing by a number of resilient vibrationabsorbing mountings 16 each comprising a wire loop 20 and a resilient pad 26 secured either to the motor as shown, or to the casing. The loop 20 comprises a portion 22 having a pair of parallel limbs, and a portion 21 with its two limbs defining a key-hole shape, Figs. 4 and 5 (not shown). The pad 26 is rectangular and receives the limbs of the portion 22 in passages or in longitudinal grooves formed in its sides. The portion 21 is received in a peripheral groove in a cylindrical resilient pad 31. The pads 26, 31 may be of natural rubber and are respectively secured by bolts 29, 23 which compress the pads about the wire loop portions 22, 21. The latter may be joined in spaced relationship by a further portion (32), Fig. 7 (not shown), arranged at 45 degrees to the portions 21, 22. Alternatively, both portions 21, 22 may be of parallellimb form. The casing is of volute form and comprises at least one axial inlet 13 and an outlet 14. Air entering through the right-hand inlet cools the motor 15, the motor end plates having apertures therein for the passage of cooling air. An earthing strip 30 is provided at the lower mounting 16.
Patent GB-1377058-A (GB)
Title: Pilots control columns for aircraft
IPC: B64C13/04
Filed: 1970-11-27
Abstract: 1377058 Aircraft control columns BRITISH AIRCRAFT CORP Ltd 25 Feb 1972 [27 Nov 1970] 56438/70 Heading B7G An aircraft contains a control column unit comprising a handle la and a column member 1b, the handle being pivoted at 2 to the column member about an axis A-A lying parallel to or at a small angle in plan to the aircraft roll axis, a first shaft 3 and a second shaft 16 having their axes lying parallel to or at a small angle in plan to the aircraft pitch axis, the first shaft 3 being connected to a pitch control system of the aircraft and the second shaft 16 being connected to a roll control system of the aircraft in such a manner that rotation of each of the shafts operates the respective control system, the column member 1b being fast with the first shaft 3 to effect rotation thereof, and the handle 1a being connected to the second shaft 16 to effect rotation thereof by a push-pull rod 13 pivotally connected to a lever 15 fast with the shaft. In an alternative embodiment, Fig. 2 (not shown), the two shafts extend in parallel alongside each other. The handle 1a, column member 1b and rod 13 are removable from the shafts.
Patent GB-1374926-A (GB)
Title: Frequency-signal transmitting means combined with differential  gearing
IPC: G01P3/44
Filed: 1972-12-07
Abstract: 1374926 Differential gear control DAIMLERBENZ AG 7 Dec 1972 [7 Dec 1971] 56440/72 Addition to 1332283 Heading F2D A frequency-signal transmitter 12, instead of being mounted directly in a bearing housing 10 of a vehicle differential gear as in the parent Specification 1,332,283, is carried by a part 11 which is inserted axially into the housing from the outside so that it may be removed without disturbing the bearing. The transmitter comprises a winding 15 on a carrier 14 mounted within an axially magnetized annulus 13, or a plurality of bar magnets, and flanked by internally toothed rings 16, 17 of magnetically conductive material coacting with an externally toothed ring 20 rotatable with the shaft 19. Leads 25 passing through a stuffing box 24 and duct 22 in the part 11 extend to a pocket 26 of plastics insulating material secured to the ring 16 where they are connected at 27 to the windings. The part 11, which carries an oil seal 28, is preferably made of non-magnetic material, e.g. aluminium or plastics material. Projections (not shown), on the carrier 14 mate with openings in the rings 16, 17 to locate the latter so that the teeth on each ring are in axial alignment.
Patent GB-1248218-A (GB)
Title: Photographic monobath compositions
Inventor: MCMURTRAY TRUMAN RUSSELL
IPC: G03C5/38
Filed: 1968-11-28
Abstract: 1,248,218. Photographic monobaths. EASTMAN KODAK CO. Nov.28, 1968 [Nov.30, 1967], No.56522/68. Heading G2C. A photographic monobath contains a silver salt developing agent which is a hydroquinone having a substituent -S-R-Y where R is a substituted or unsubstituted alkylene, arylene or alkylene-arylene radical and Y is a water-solubilizing group e.g. -OH or -COOH, the bath also containing an alkaline agent and a mercaptan stabilizing agent. The stabilizing agent may have the formula HS-R-Y where R and Y have the values above and may be identical with those values in the developing agent. The monobath may also contain inorganic salts including those of Al, Bi, Ce, Cs, Li, Na, Nd, Pd, Rb, Rh, Sb, Sc, Sm, Sn, Ti, V, Y, Yb, Zn and Zr and morpholine or an amino-alkanol. The monobath may be prepared by dissolving the preformed constituents in water or by reacting a p-benzoquinone with more than the stoichiometric quantity of a mercaptan HS-R-Y and adding alkali and further mercaptan stabilizing agent which may or may not be the same as that reacted with the benzoquinone. The material processed in the monobath may contain an incorporated developing agent.
Patent GB-1464869-A (GB)
Title: Self-exciting electrodeposition of metals
IPC: C25D3/02
Filed: 1974-02-20
Abstract: 1464869 Self-exciting metal electro-deposition YEDA RESEARCH & DEVELOPMENT CO Ltd and PROTOTECH CO 20 Feb 1974 56984/73 Heading C7B A metal of lower oxidation potential than hydrogen is electro-deposited on a cathode in a cathode chamber from a solution of a salt thereof by a self-exciting process in which the cathode is externally connected with a hydrogen anode which is separated from the catholyte by a porous barrier through which an acidic solution is flowed from anode to cathode to prevent contamination of the anode with the ions of the metal. Cu or Ag may be deposited from CuSO 4  or Ag acetate in solution in H 2 SO 4  at pH 1À6, the acidic solution also being H 2 SO 4 . Adherent plate may be formed on a Cu plate or Ag mesh cathode respectively. The diaphragm may be sintered glass with flow achieved under gravity.
Patent GB-1200500-A (GB)
Title: Metal degreasing
IPC: B21B45/00
Filed: 1967-12-21
Abstract: 1,200,500. Cleaning aluminium or aluminium alloy. KALLE A.G. Dec.21, 1967 [Dec.23, 1966], No.58179/67. Heading C7E. Aluminium or any alloy thereof is degreased by washing in petrol, and then brushing in a stream of air to which water vapour has been added. The relative humidity is preferably 80 to 95%. The stream of air may be heated to e.g. 100‹ C.
Patent GB-1249980-A (GB)
Title: Process of forming a composite article
Inventor: CORNWELL ANTHONY CHARLES
Filed: 1967-12-22
Abstract: 1,249,980. Composite articles. DEFENCE, SECRETARY OF. 18 March, 1969 [22 Dec., 1967], No. 58365/67. Heading B5A. A composite article is formed by inserting a mixture of thermosetting resin and reinforcement at a push-fit in a heat-shrinkable plastics tube and heating the assembly to cure the resin and shrink the tube. The plastics tube may be stripped off or left on as part of the article as desired. Formers coated with parting agent may be inserted into the tube to provide articles of varying section. Mandrels e.g. of aluminium, may be inserted into the tube to provide a core. The thermosetting resin may be peroxide catalysed unsaturated polyester resins, phenolic resins, epoxy resins, polyimides or Friedel-Crafts type resins. The reinforcement may be fibrous, e.g. glass fibre or carbon fibre. The heat-shrinkable tube may be polyester, polyvinyl chloride, silicone rubber or biaxially stretched polypropylene. In one embodiment, a fibrous mat is partially impregnated with partially-cured resin; rolled up and pushed into the tube which is heated. Rolling up is preferably effected on an axis which is substantially parallel to the direction of fibre orientation.
Patent GB-1336957-A (GB)
Title: Gas turbine compressor shaft coupling assemblies
IPC: F16D3/06
Filed: 1971-12-16
Abstract: 1336957 Shaft couplings GENERAL MOTORS CORP 16 Dec 1971 [19 March 1971] 58394/71 Heading F2U To dampen vibration in a shaft coupling comprising mating male and female non-circular sectioned shaft portions (e.g. with splines 28, 30) has an 0-ring 31 compressed between overlapping parts of the shaft. The coupling may be used in a test rig in a drive to a gas-turbine compressor shaft 4. Splines 28, 30 may be lubricated by oil sprayed in at 34 and passing through a passage 36.
Patent GB-1212877-A (GB)
Title: Improvements in heat sealing
IPC: B31B50/66
Filed: 1967-12-28
Abstract: 1,212,877. Seaming non-metallic sheet material. CONTINENTAL CAN CO. Inc. 28 Dec., 1967 [28 Dec., 1966], No. 58777/67. Heading B5K. [Also in Divisions B8 and H5] One side of an electrically non-conducting material 14 is heat sealed to another surface by a heat sealable material by applying at least one resistive heating element 10 to the one side of the material 14 and applying a high frequency alternating voltage to the other side of the material 14 to produce a flow of alternating current in the element 10 by capacitive coupling to heat the one side by Joulean heating. As shown in Fig. 1, the element 10 is fixed to a substrate layer 12 secured to the non- conductive layer 14 and is heated by placing the layer 14 adjacent to electrodes 16, 18 positioned to apply the tangential portion of an electric field generated therebetween to the element 10. The method is applicable to sealing frozen food cartons which are imprinted, in the regions to be sealed, with heating elements comprising electro-conductive ink, the conductive material being carbon, aluminium, silver, platinum, gold, nickel, tin or copper. The heating elements are arranged in any of the patterns shown in Fig. 2 and are covered with polyethylene or a heat sealable wax, e.g. an ethylene vinyl acetateparaffin blend. A carton 34, Fig. 7, provided with conductive lines 10<SP>1</SP> is moved past a pair of etched comb-like electrodes 22<SP>1</SP>, 241 whose individual teeth are intermeshed and which are embedded in a polystyrene block 26 and coated with a polystyrene sheet 28. In Fig. 9, filled cartons 34 are fed by a conveyer 40 past electrode structures 36, 38..to seal the side flaps and then past chill rails 42, 44 to cool the seals. The front flap of the carton is sealed by subsequently moving it past a similar electrode structure and chill rail. The flaps of milk cartons (45), Fig. 10 (not shown) having conductive lines (46) thereon, are closed by cams 50, are sealed by passage between electrode structures (52), (54) and are cooled by chill rails (56), (58).
Patent GB-1366788-A (GB)
Title: Circuit arrangements for extracting the carrier from single side band signal with unsuppressed carrier
IPC: H03D1/24
Filed: 1972-12-20
Abstract: 1366788 Single side band receivers SIEMENS AG 20 Dec 1972 [28 Dec 1971] 58838/72 Heading H3Q In a circuit for extracting the unmodulated carrier from a single-sideband signal with unsuppressed carrier the incoming signal is applied via a controllable phase shift device 1 and an amplitude limiter 2 to a frequency or phase demodulator 3, the output of which is fed to the phase shift device 1, for eliminating or reducing the phase modulation associated with the unsuppressed carrier. The limiter may be a separate device as shown or included in the frequency or phase modulator 3. The carrier thus obtained and having only residual phase modulation is used as the carrier input for an HF-LF demodulator 4 for demodulating the single sideband signal which is applied directly to the demodulator 4. In operation, the amplitude limiting removes the amplitude modulation present in the received signal while the controllable phase shifter reduces the associated phase modulation.