baber/WOPTO huggingface dataset:
Patent GB-247167-A (GB)
Title: Improvements in or relating to incandescent cathode discharge tubes
IPC: H01J1/18
Filed: 1926-01-18
Abstract: 247,167. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Feb. 3,1925, [Convention date]. Vacuum tubes. - A heated cathode filament is kept in tension by a spring which is only effective up to a definite elongation of the cathode. The spring may become unstrained when this elongation takes place, or its motion may be arrested by a stop. In one construction, the filament 1 is attached to a coil spring 4 having an isolated turn 6 which can engage a forked arm 7 on the supporting arm 5. Current is supplied independently of the spring by a conductor 8. In another arrangement, a hair-pin filament passes over a laminated spring and is arrested by the overhanging end of the supporting arm, in a fold of which the end of the spring may be clamped. In a modification, the laminated spring forms an integral extension of the supporting arm. to which an overhanging stop may be attached; or the stop may be omitted and the spring designed so as to become unstrained at the desired point.
Patent GB-1438930-A (GB)
Title: Hydraulic brake booster
IPC: B60T13/14
Filed: 1975-01-14
Abstract: 1438930 Hydraulic brake boosters ROBERT BOSCH GmbH 14 Jan 1975 [15 Jan 1974] 1469/75 Heading F2F An hydraulic booster for connection between a brake pedal and a master cylinder comprises an actuating rod 4, an hydraulic piston 9 slidable in a cylinder 8, a valve 22 for controlling flow of fluid under pressure into and out of the cylinder, and a power transmission device 16 for controlling the valve and including rolling elements in the form of gear-wheels 17, 18 carried by the rod 4 and engaging linear members in the form of toothed racks 19, 20 on which the elements 17, 18 roll one rack 19 being secured to the piston 9 and the other being displaceable and coupled to the valve 22 which is a slide valve having a spool 23 acted upon by a spring 24. The spool 23 has an aperture 25 for receiving a collar 26 of a lever 27 pivoted in a screw 29, the other end 35 of the lever engaging in a groove 31 in the rack 20. On application of the brakes rod 4 moves into the booster rotating wheels 17, 18 and moving rack 20, the piston 9 being initially held by spring 10 and by the master cylinder. Spring 24 can then displace spool 23 to close an outlet port 33 and open communication between an inlet port 34 and a pressure chamber 6 the hydraulic pressure in which can then displace piston 9 and actuate the master cylinder. Rod 4 continues to move until the increasing hydraulic pressure on its end face produces a force equal to the foot pressure on the brake pedal, the piston 9 then moving spool 23 by way of rack 19 and gear-wheels 17, 18, rack 20 and lever 27 to close inlet 34. When the foot pressure is decreased, rod 4 moves to displace spool 23 until port 33 communicates with chamber 6 so that fluid can flow out and allow piston 9 to close port 33 again so that equilibrium prevails again at a lower level. If pressure at port 34 fails as a result of a defect in the system rod 4 mechanically displaces piston 9 and spool 23 is carried along by way of transmission device 16, the foot pressure being transmitted directly to the piston 9.
Patent GB-796785-A (GB)
Title: Improvements in or relating to clutches
IPC: F16D13/70
Filed: 1955-01-18
Abstract: 796,785. Friction clutches. FICHTEL & SACHS AKT.-GES. Jan. 18, 1955 [Feb. 13, 1954], No. 1471/55. Class 80 (2). A clutch for use in road-building machines, bull dozers and like heavy vehicles, has a friction disc 12 engaged by a member 20 and pressure-plate 4a when a control sleeve 1 is moved to the left of Fig. 2 to tilt three sets of toggle levers 11, 2 to an over-centre position. The clutch is then self-locked in engagement. A support member 3, on which the toggle levers 2 are pivoted, has lugs 6 engaging recesses 15 in the pressure-plate 4a and also engages the inner edge of an annular spring 7 in a ring 9 screwed into a support 5 secured to the member 20. The spring 7 is pretensioned by adjustable screws 10. Weights 16 are provided on the toggle levers 2 to counterbalance the effects of centrifugal force. Lugs 4b on the pressure-plate 4a engage recesses 5a in the support 5. A projection on each toggle lever 2 engages a pressure transmitting bar 8, Fig. 3. The ends of the three pressure transmitting bars 8 are equally spaced circumferentially and are screwed on to the pressure-plate 4a. The axial position of the ring 9 is adjusted by screwing it into the support 5 as the clutch surfaces wear so that the annular spring 7 does not abut the headed ends of the adjusting screws 10 when the clutch is engaged. This causes the degree of pretension of the spring 7 to remain substantially constant between the " clutch engaged " and " clutch disengaged " positions. Springs 14 between the support 5 and pressure-plate 4a bias the clutch to the disengaged position.
Patent GB-1119543-A (GB)
Title: Antigen preparation and vaccine
IPC: A61K39/10
Filed: 1966-01-12
Abstract: B. pertussis protective antigen is separated from isolated B pertussis cell wall material by extracting an aqueous suspension having a concentration of cell wall material equivalent to from 100-2,000 B/ml. by admixing said suspension under alkaline conditions, preferably at a pH of from 8.5-10, with an aqueous solution of sodium or potassium chloride of sufficient strength to give a final concentration in the mixture of from 0.5-1.5M.  The extraction may be performed over a period of at least 18 hours at 2-5 DEG C.  After extraction, the mixture may be centrifuged and the supernate collected and dialyzed against a phosphate buffer having a pH of from 7.0-7.2 to remove substantially all the salt from the antigen solution.  B. pertussis cell wall material may be isolated from protoplasmic material by centrifugation, the mixture being obtained by the mechanical rupturing of B. pertussis cells, preferably by feeding an aqueous suspension of the cells under a pressure of from 15,000-50,000 p.s.i. into a decompression chamber cooled to 20 DEG C. or less, thereby causing explosive rupture of the cells.  A vaccine may be prepared by adsorbing the B. pertussis antigen on to an adjuvant selected from aluminium hydroxide and aluminium phosphate, or coprecipitating the antigen with alum, resuspending the adjuvant adsorbate or alum precipitate in physiological saline solution at a concentration of at least 8 protective units of B. pertussis antigen per ml. and adding thimerosal in a weight concentration of at least 1:10,000. Polyvalent vaccines may be formed by including in the vaccine at least one bacterial toxoid or compatible antigen, e.g. diphtheria and tetanus toxoids.
Patent GB-888994-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J5/00
Filed: 1959-01-15
Abstract: The invention comprises 6-fluoro steroids of the formula <FORM:0888994/IV (b)/1> (wherein Y is hydrogen or fluorine, X is keto or b -hydroxy methylene and R is the acyl radical of a carboxylic acid), together with processes for their preparation by subjecting the corresponding 16 - unsubstituted - 11b  - hydroxy compounds to fermentative hydroxylation in a nutrient medium with Streptomyces roseochromogenus or Streptomyces sp. A.T.C.C. 11009, if desired acylating the resulting 16a ,21-diol, oxidising the diester, e.g. with a chromic acid oxidant to yield the corresponding 11-keto derivative and saponifying the ester groups with a base.  Detailed examples are given.  1-Dehydro-6a -fluorohydrocortisone acetate is prepared from 1-dehydro-6a -fluorohydrocortisone, itself prepared by incubating a mixture of 6a -fluoro-hydrocortisone acetate and 3-keto bisnorcholen-22-al with Septomyxa affinis. 1-Dehydro-6a ,9a -difluoro-hydrocortisone is prepared by saponification of the 21-acetate.  Specifications 724,094 and 850,833 are referred to.ALSO:Pharmaceutical compositions suitable for treatment of cirrhosis of the liver, nephrotic and adrenogenital syndromes, eclampsia and congestive heart failure comprise steroids of the general formula <FORM:0888994/VI/1> (in which Y is hydrogen or fluorine, X is keto or b -hydroxy and R is hydrogen or an acyl group) together with a suitable carrier for oral, topical or parenteral administration.  The compositions may take the form of ointments, creams, lotions, pills, tablets, capsules, or injectable solutions, and may further contain other steroid hormones, antibiotics and/or germicides.
Patent GB-987186-A (GB)
Title: Apparatus for removing loose solid matter from a floor or like surface
IPC: A47L7/00
Filed: 1963-01-14
Abstract: 987,186. Rotary joints. J. A. W. DENT, and T. LOMAS. March 16, 1964 [Jan. 14, 1963], No. 1560/63. Heading F2G. [Also in Divisions A4, B8 and E1] A rigid tube 13 is rotatably connected to a duct 7 by means of a channel portion 15 which embraces a flange 16 on the duct 7, the channel portion 15 including a plurality of housings 17 which house springs 18 and balls 19, the balls 19 of alternate housings engaging opposite sides of the flange to allow the tube to rotate about the duct.
Patent GB-984301-A (GB)
Title: Electric circuit breaker
IPC: H01H71/10
Filed: 1962-01-16
Abstract: 984,301. Automatic circuit-breakers. MECHANICAL PRODUCTS Inc. Jan. 16, 1962 [Jan. 23, 1961], No. 1569/62. Heading H2B. In a multiphase circuit-breaker having movable contacts 170, 173, 174 on a common insulating member 116 and operating and tripping mechanism generally similar to that disclosed in Specification 862,259, the common operating mechanism and the elongated parallel wire trip mechanism for each phase are mounted in one separate section of the circuit-breaker which also contains the center phase contacts. Reference has been directed by the Comptroller to Specification 862,259.
Patent GB-555315-A (GB)
Title: Improvements in or relating to dust collecting apparatus
IPC: B01D46/04
Filed: 1942-02-07
Abstract: 555,315. Dust filters. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). Feb. 7, 1942, No. 1635. [Class 8 (ii)] Dust collecting apparatus, suitable for use with shoe repair machinery such, e.g. as described in Specification 529,036, [Group VII], comprises fabric filters 42 supported at their ends on slidable plates 44, 46 in a casing through which the air is drawn by a fan, the filters being shakable by a rod 82 attached to a plate 70 secured intermediately to the filters while the plates 44, 46 are held in position by a panel 60 having pads 89 on which they abut. The plates are removably held at their inner ends by clips 56, 58. A dust drawer 18 is provided below the plate 46, having a flange 77 engaging a rear sealing strip, pivotal latches 68, and a front wall engaging a rubber strip carried by the panel. Air enters by a manifold 12, Fig. 3, having inlets 14 for connection with dust hoods, and a connecting conduit 24 sealed by flanges 28 engaging a rubber strip 30 on the casing. A deflecting plate 38 with an upstanding flange distributes the entering air.
Patent GB-1203114-A (GB)
Title: Improvements in folding cylinder having adjustable band construction
IPC: B65H45/16
Filed: 1968-01-12
Abstract: 1,203,114. Folding cylinder. WOOD INDUSTRIES Inc. 12 Jan., 1968 [20 March, 1967], No. 1805/68. Heading B8R. A folding cylinder 2 comprises a plurality of circumferentially extending slots on the outer surface thereof, an adjustable flexible band 11 in each of the slots, each end of each of the bands being pivotally secured to the cylinder by a hinge 16, 18 and at least one end of each of the bands being movable circumferentially relative to the cylinder towards and away from the other end; and adjustment means for moving the said one end substantially circumferentially relative to the other end to cause the band to expand and retract with respect to the outer surface of the cylinder. A folder comprises a folding cylinder 2 and a cutting cylinder 3 for receiving sections 4 of newspaper from a former (not shown). Cylinder 3 has conventional knives 5, and cylinder 2 carries pins 6 for holding the sections on to its periphery and retractable tucking blades to tuck the cut sections between folding rollers 7. Each band 11 is held between hinges 16 and 18. Block 17 of hinge 18 is slidable towards hinge 16 under the control of screw 22. Block 15 of hinge 16 is slidable towards hinge 18 under the control of screw 29. With a plurality of bands 11 spaced axially of the cylinder, screws 29 permit individual adjustment of each band whilst a common axially extending control rod (40, Fig. 2, not shown) serves to simultaneously rotate screws 22 of each hinge 18, providing simultaneous adjustment of the bands.
Patent GB-606776-A (GB)
Title: Improvements in and relating to dough dividers
IPC: A21C5/00
Filed: 1946-01-18
Abstract: 606,776. Dough dividing machines. PALMER, A. R., and BAKER PERKINS, Ltd. Jan. 18, 1946, No. 1813. [Class 87(ii)J To prevent leakage of air into the ram chamber 4, the reciprocating pocketed dividing head 1 is pressed against the facings 3 of the ram chamber by set screws 7 disposed within channels 5 located between flanges 2 on the head and fixed flanges 8. If the sliding surfaces 13 wear, springs 12 keep the flanges 2 in contact with the facings 3.
Patent GB-295548-A (GB)
Title: Improvements in dry cleaning apparatus
IPC: D06F43/08
Filed: 1928-01-20
Abstract: 295,548. Mishaw, E. W. Jan. 20,1928. Fats, extracting by solvents.-A dry cleaning apparatus comprises a washer A with a clothes agitator 38, a tank 34 for supply of washing fluid, a second tank 11 into which the fluid is led after washing, and a pump 16 for circulating air and vapour from the washer through a condenser 13 and a separator 14 and the second tank 11, until all the vapour is condensed. A steam jacket 35 with tubular stay bolts 37 extending therethrough is spaced round the washer A containing a perforated rotary drum 38 with blades 38<1>. Air and moisture are withdrawn by a pump 7 from clothes fed into the washer, steam being led into the jacket by a pipe 49. The jacket is then water cooled, and the clothes washed with fluid, which is finally led by a pump 9 through a button separator 10 and filter 39 into tank 11. The jacket is then steam heated and air circulated as above until no vapour is seen in a sight-tube 65 to condense at the bottom of the condenser, when the jacket is cooled. Air is sucked from a pipe 68 by a pump 16 through the clothes or wool until they are fully aerated, when the drum is stopped and the clothes withdrawn. The fluid is led from the tank 11 to a still 21 and thence through a condenser 26, filter 29 and mixer 31 to the tank 34 by pipes with valves. A pipe 23 leads from the top of the tank 11 to a breather coil in the condenser.
Patent GB-536560-A (GB)
Title: Improvements in or relating to a method for the automatic cutting of threads in a straight bar knitting machine and an automatic mechanism for carrying out said method
IPC: D04B11/00
Filed: 1939-08-08
Abstract: 536,560. Knitting-machines. LAMBACH, F. Aug. 8, 1939, No. 2081/41. Convention date, March 6, 1939. Divided out of 533,296. Drawings to Specification. [Class 74 (ii)] A straight-bar machine is provided with means for gripping and cutting the thread or threads extending from the completely knitted fabric or article. This subject-matter is contained in the abridgment of Specification 533,296.
Patent GB-629113-A (GB)
Title: Improvements in or relating to spring seats, mattresses and the like
IPC: A47C23/053
Filed: 1947-01-23
Abstract: 629,113. Spring upholstery. CHISWELL WIRE CO., Ltd., and SIBTHORPE, J. Jan. 23, 1947 No. 2137. [Class 52 (iv)] The end turn of an upholstery spring 5 is provided with a diametrical plate 1 formed with a circular hole near each end, the ends being bent back on the transverse diameters of the holes to form clips to embrace the wire of the end turn while exposing the wire to enable tension springs 7 to be hooked thereto in the gaps 3.
Patent GB-620629-A (GB)
Title: Improvements in or relating to printing screens
IPC: B41C1/14
Filed: 1947-01-24
Abstract: 620,629. Stencil-printing. CHESKOVA, Ltd. (Zimmer's Erben Textile Printing Machinery Co., Ltd., F.). Jan. 24, 1947, No. 2228. [Class 100 (ii)] A printing-frame is constructed of non- corrodible metal of tubular shape, e.g. ovate section, or of metal treated to resist corrosion, having an undercut recess 14 in its lower face for the reception of an elastic or resilient insert 15 to which a screen 16 is secured. The frame could be made of steel or bronze tubing. The insert 15 projects beyond the lower face 10a of the frame 10, and may be of resilient plastic material, e.g. plasticized polyvinyl-chlorideacetate or butyral, in the shape shown in Fig. 3, to which a silk screen is cemented, or of steel or phosphor-bronze bent to a channel-shape (Figs. 6, 7, not shown), to which a wire gauze screen is soldered or brazed.
Patent GB-985379-A (GB)
Title: Accelerometer
IPC: G01P15/135
Filed: 1963-05-28
Abstract: 985, 379. Accelerometers. VAPOR CORPORATION. May 28, 1963 [Sept. 4, 1962], No. 21232/63. Headings G1K and G1N. [Also in Division G4] An accelerometer of the type comprising a body of liquid 15 in a sealed tube is characterized in that the central portion 13 of the tube has a substantially larger diameter than the end portions 11, 12. By this means the effects of temperature variations may be reduced. The liquid 15 is preferably mercury and its mass is controlled so that its expansion will cause the length of the body of mercury to increase proportionally with temperature. As shown, a given acceleration may be indicated by lamp 22 lighting when the mercury reaches contact 20, or a plurality of such contacts may be provided. Alternatively the mercury may act as a conductor forming part of a capacitor whose capacitance indicates acceleration, or a continuous resistive element may be progressively shorted out by the mercury. The tube may be provided with markings for direct reading. Thermal insulation 25 may be provided.
Patent GB-1455081-A (GB)
Title: Electrical connectors
IPC: H01R13/28
Filed: 1974-01-17
Abstract: 1455081 Two part coupling SOC FRANCAISE METALLO 17 Jan 1974 [15 Feb 1973] 02294/74 Heading H2E A connector, with similar members engageable when mutually inverted, comprises housings 1 each holding one or more spring metal contacts 6. Locating prongs and latches 4, 5 engage similar parts in the opposite member. Each contact 6 is retained by tang 8 engaging in a recess in housing 1, and by a shoulder at the rear, where a wire 9 is crimped or soldered 7. Alternatively the contacts may have wire ends, bent perpendicularly outside the housings to enter feed-through holes on a printed circuit card, the card being held by latches 13 engaging in edge recesses. A connector member may also be mounted upright on a card, with the wire ends of the contacts passing straight into holes in the card. The contact members may each carry a transverse rib to interlock with the engaging contact.
Patent GB-792388-A (GB)
Title: Improvements in or relating to a method of producing imitation fur
IPC: A41H41/00
Filed: 1956-01-24
Abstract: 792,388. Making imitation fur. BECHETRILLE, E. and SOC. D' ETUDES DU TEXTILE S.E.T.. [formerly SOC. DES NOUVELLES APPLICATIONS DU TEXTILE S.N.A.T.]. Jan. 24, 1956 [Feb. 1, 1955], No. 2391/56: Class 142(4) Imitation astrakhan fur is made by depositing chenille threads 2, 3, 4, 5 in succession on a moving carrier having teeth to keep them in position, and then screwing the layers of thread to a fabric backing - along parallel lines 6, the layer 5 being next to the backing.
Patent GB-699256-A (GB)
Title: Improvements in and relating to eddy-current brakes with magnetic locking
Inventor: CARTER HOWARD FREDERICK
IPC: H02K49/00
Filed: 1951-01-31
Abstract: 699,256. Eddy-current brakes. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 15, 1951 [Jan. 31, 1951], No. 2447/51. Class 35. An eddy current brake comprises a steel cylindrical rotor 1 having an enlarged slotted portion 5 at its centre and a stator including two discs 7 having axially projecting parts 8 in proximity of the rotor portion 5. When the current in the stator coil 11 is increased to a certain value, the rotor cylindrical part becomes saturated with the result that the flux passes from the stator parts 8 to the rotor projecting part 5, thus magnetically locking rotor and stator.
Patent GB-1083962-A (GB)
Title: Process for removing impurities from cyclic organopolysiloxanes
IPC: C07F7/21
Filed: 1965-01-20
Abstract: Silanol containing impurities, which adversely affect polymerization, are removed from cyclic organopolysiloxanes, by contacting the siloxane with a heat-activated hydride of Ca, Ba or Mg and thereafter separating the treated silicoxane from the hydride.  The organopolysiloxane may be hydrocarbon-substituted. Examples are: hexamethylcyclolicsiloxane, 2,4,6-triphenyl - 2,4,6 - trimethylcyclosiloxane, 2-methyl, 2-ethyl, 4,4,6,6 - tetraphenylcyclolicsiloxane and 2,2-dimethyl-4,4,6,6-tetraphenylcyclolicsiloxane. The hydride may be heat-activated under vacuum below 50 m  Hg at 300-600 DEG  C. until substantially free from surface moisture.  Examples relate to the purification of the cyclic organo-polysiloxanes listed above and illustrate the higher molecular weight obtained on polymerization of the purified product.ALSO:Heat activated hydrides of Ca, Mg and Ba are prepared by heating under vacuum of below 50 m  Hg at from 300-600 DEG  C. until substantially free from surface moisture. Examples of suggested structures are CaH2.CaH and CaH2.Ca2.
Patent GB-832920-A (GB)
Title: Electric transformer coolers
IPC: H01F27/12
Filed: 1957-01-24
Abstract: 832,920. Cooling electric transformers; heating air or water. McLEAN, G. O. Jan. 21, 1958 [Jan. 24, 1957], No. 2528/57. Classes 64(1) and 64(3) The insulating medium in which an electric transformer is immersed is cooled in flowing over the evaporator 2 of a heat. pump circuit. For an oil cooled transformer. the evaporator may be located in the oil tank or, as shown, it may be located outside the tank. The heat pump circuit includes a compressor 3 and a condenser 4 over which air for space heating or water for cleansing purposes is passed and thereby heated.
Patent GB-377576-A (GB)
Title: Improvements relating to the welding of iron, steel and their alloys
IPC: B23K9/23
Filed: 1932-01-28
Abstract: 377,576. Uniting by fusion. KRUPP AKT.-GES., F., Essen, Germany. Jan. 28, 1932, No. 2602. Convention date, Feb. 6, 1931. [Class 83 (iv).] A welded joint between articles of iron or steel or of an alloy thereof of a composition different from that of chemically neutral chromium nickel steel is made by depositing from electrodes or welding rods one or more layers of chemically neutral chromium nickel steel and one or more layers of cheaper steel such as mild steel, so as to graduate the strength of the weld. The outermost layers C<1>, C<2> either on both sides of the weld as shown or on one side only are of chemically neutral chromium nickel steel so as to increase the resistance to chemical attack. Specification 372,678 is referred to.
Patent GB-551603-A (GB)
Title: Improvements in or relating to apparatus for the remote control of engines and the like
IPC: F02D11/04
Filed: 1942-02-27
Abstract: 551,603. Regulating. THORNYCROFT & CO., Ltd., J. I., and WALKER, E. B. Feb. 27, 1942, No. 2605. [Class 7 (vi)] [Also in Group XXVI] In normal action, movement of a lever actuates a member 3 through a hydraulic or other transmitter, and member 2 acts frictionally on a member 7 pressed into contact with it, the member 7 controlling the throttle or regulator, e.g. through a collar and disc 11 pressed to member 7. In emergency, a remote control lever acts directly on the disc and so controls the throttle while at the same time it turns the member 7 about the member 3 causing member 7 to rise on balls 8 which are moved out of their curved grooves 10 and so separates the members, either or both of which may be faced with fibrous material.