baber/WOPTO huggingface dataset:
Patent GB-721577-A (GB)
Title: Improvements in or relating to electric motor shaft arrangements
IPC: H02K5/167
Filed: 1952-11-12
Abstract: 721,577. Mounting electric-motor rotors. SCHEID, A. M., SCHEID, W. M., and SCHEID, E. M., [trading as VORWERK & CO.]. Nov. 12, 1952 [Nov. 17, 1951], No. 28550/52. Class 35. [Also in Group XXXIV] A vertically mounted electric motor, Fig. 1, has its rotor 14 attached to a cylinder 12 and a live shaft 8, the shaft rotating in plain bearings 6, 7 within a fixed tube 5 and being supported by a ball 9 thrusting against a hardened plate 11. The rotor may be short-circuited by a ring or hub plate. In a modification, Fig. 2, the rotor may be external of and surrounding the stator and be directly attached to the shaft which is supported by a hemispherical end contacting a thrust plate.
Patent GB-1005599-A (GB)
Title: Improvement in or relating to hydraulic swash plate type pumps or motors
IPC: F01B3/00
Filed: 1962-07-25
Abstract: 1,005,599. Ball joints. G. A. WAHLMARK. July 25, 1962 [Aug. 22, 1961], No. 28567/62. Heading E2F. [Also in Divisions B7, F1 and F2] In a swash plate motor or pump (see Division F1), the piston rod ball joints permit an inclination between the swash plate and cylinder block axes up to about 45 degrees, the ball 108 of each joint, Fig. 3, having a groove 112 to permit its entry into socket 111 when in the position shown, and prevent its withdrawal when in its inclined working position. In a ball joint for working at various inclinations, a locking ring 315, Fig. 12, is sprung into groove 314 to prevent withdrawal of ball 308. The groove in the ball assists in the lubrication of the joint when used in a motor or pump having a flooded casing. Specifications 861,876, 918,086, 964,694 and U.S.A. Specification 2,947,182 are referred to.
Patent GB-185669-A (GB)
Title: Improvements in the manufacture of blocks or the like for paving and like purposes
IPC: E01C5/22
Filed: 1921-10-28
Abstract: 185,669. Poehin, C. D. Oct. 28, 1921. Compound or composite blocks and slabs.- Blocks &c. for pavings and floors, wall linings, &c. are formed of concrete impregnated with india-rubber or asphalt or other bitumen. Concrete formed of cement and the usual aggregate A with a small amount of water added is placed in a mould, and liquid or very plastic rubber &c. is poured or compressed into the mould so that the interstices B of the concrete are filled and a tread surface C partly or entirely covers the surface. When rubber is employed, the block is then vulcanized.
Patent GB-746593-A (GB)
Title: Improvements relating to parachute equipment
Inventor: LOBELLE MARCEL JULES ODILON
IPC: B64D17/40
Filed: 1952-11-13
Abstract: 746,593. Parachutes. M.L. AVIATION CO, Ltd. Oct. 30, 1953 [Nov. 13, 1952], No. 28664/52. Class 4. Equipment for lowering an airman, part of an aircraft, or other heavy object from an aircraft at a high altitude comprises a number of parachutes attached at intervals along the length of a flexible line, which open in succession so as to impose the drag in a number of substantially equal stages and to provide a tail-like stabilizing effect during descent. The parachute assembly comprises a continuous flexible line 2 secured at one end to an airman's harness or an article to be dropped and at its other end to the rigging lines of a spring-opened parachute 9. The rigging lines 11 of a plurality of small parachutes 1 of equal size are secured in spaced relationship to the line 2, each parachute being formed with a vent 3 for the passage of the line 2. The parachutes collectively have sufficient drag to retard the descent of the article dropped and they are housed in a container 8 with the line 2 secured by rupturable connections 12 whereby the parachute 9, when released, withdraws the remaining parachutes in succession. All except the first two parachutes are formed on one side with inelastic rigging lines and on tho other with elastic lines so that if the drag on an individual parachute becomes excessive it may tilt and spill air. It is stated in the Provisional Specification that the cord 2 may be flexible wire. Specification 699,290 is referred to.
Patent GB-726813-A (GB)
Title: Improvements in or relating to glass composition
IPC: G01T1/06
Filed: 1952-11-14
Abstract: 726,813. Glass manufacture. PITTSBURGH PLATE GLASS CO. Nov. 14, 1952 [Nov. 14, 1951], No. 28753/52. Class 56. A glass which exhibits a change in colour or transparency on irradiation with short waves such as gamma or X-rays and which thus provides a rough quantitative indication of the total radiation to which it has been exposed consists in percentages by weight of SiO 2 , 39- 80; sodium, potassium or rubidium oxides or combinations thereof, 10-23 and barium or strontium oxides or a combination thereof, 5- 45.5. The glass is kept free from impurities, particularly cerium, iron, titanium and antimony oxides which greatly reduce the change of colour which varies from light blue to purple depending on the exposure. The addition of up to 2 per cent P 2 O 5  whilst reducing the sensitivity gives a red tinge which may sometimes be more easily perceptible. A preferred composition is SiO 2 , 39.1; K 2 O, 15.5 and BaO, 45.4. The glass may be used as a direct reading radiation dosimeter by workers in occupations where they may be exposed accidentally to harmful short-wave radiation.
Patent GB-1018237-A (GB)
Title: Improvements in and relating to devices for use in an automatic telephone system
IPC: H04Q3/00
Filed: 1964-07-13
Abstract: 1,018,237. Automatic exchange systems. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd: July 13, 1964 [July 16,  1963], No. 28755/64. Heading H4K. In a switching arrangement for interconnecting a number of local lines such as LA10, LB10 with lines such as LC10 leading to a main exchange by means of link circuits WL, V, WR, the local lines form two groups which are wired respectively to the switches WL, WR, whilst the main exchange lines are wired to both switches WL, WR. Thus on a call from a local line, an idle link is allotted, one or other of the switches WL, WR is set to the calling line and the other is set by marking to a main exchange line. On an incoming call both switches are set to the main exchange line, and the relevant one of the switches is then reset to the wanted line. Calls may be established between the two groups of lines LA10, LB10.
Patent GB-1129375-A (GB)
Title: Device for the gaseous treatment of materials which are permeable to air
IPC: F26B13/16
Filed: 1966-06-28
Abstract: 1,129,375. Sieve drum driers. H. FLEISSNER, H. FLEISSNER, and G. FLEISSNER, [trading as ESTABLISHMENT FOR AUTOMATION]. 28 June, 1966 [2 July, 1965], No. 28844/66. Heading F4G. [Also in Division D1] In apparatus for the treatment of fibrous material, e.g. drying, steaming, setting of tow, top, fabric, loose fibrous material, at least two sieve drums are provided in a closed housing, and one fan is provided to subject at least two sieve drums to suction. Several sieve drums are preferably provided in staggered relationship so that the material follows a zig-zag path, the portion of the drum not contacted by the material being baffled. In a preferred embodiment an intermediate suction chamber 3 is provided between the end faces of the drums III and IV and the fan 4. Several fans may be associated with one intermediate chamber which is provided with closable openings, Fig. 3 (not shown).
Patent GB-445474-A (GB)
Title: Manufacture of water-insoluble azo-dyestuffs on wool materials
IPC: D06P3/22
Filed: 1934-10-09
Abstract: Water-insoluble azo dyes are produced on wool or mixtures of wool with cellulose fibres without the aid of a mordant by treating the material with hot water, containing if desired, a non-mordanting electrolyte, particularly a thiocyanate, grounding with an alkaline solution of an o-hydroxyaryl carboxylic acid arylide and developing with a diazo compound.  In an example, wool muslin is treated with boiling water, dried, grounded with an aqueous solution containing 1 - (2<1> : 3<1> - hydroxynaphthoylamino) - 2 - methyl - 4 - chlorobenzene, alcohol, caustic soda, sulphite waste liquor and the oleic acid ester of methyltaurine, during which process common salt is added, and developed with a solution of diazotized 4-chloro-2-methyl-1-aminobenzene containing acetic acid and the reaction product of ethylene oxide upon octodecylalcohol.  Dyeings are obtained of greater strength of colour than those formed on non-boiled muslin.  Potassium thiocyanate and calcium hydroxide are specified as electrolytes which may be added to the pre-treating bath.  The Specification as open to inspection under Sect. 91 comprises the use of electrolytes in general in the pre-treating bath.  This subject-matter does not appear in the Specification as accepted.
Patent GB-675825-A (GB)
Title: Improvements in the construction of hand tool-holders used in dentistry
IPC: A61C1/14
Filed: 1950-11-27
Abstract: 675,825. Dental handpieces. GARNIER & FILS, E. Nov. 27, 1950 [Dec. 5, 1949], No. 28953/50. Class 81 (ii). A dental handpiece has a longitudinal rod acting through a pressure block to close a drill chuck and spring- loaded in a direction to close it, the chuck being released by a lever, pivoted on the body, which withdraws the rod against the action of the spring. The double-ended chuck 15 is carried in a rotating sleeve 14 mounted in bearing bushes 17, 18. The driving spindle 22 is urged towards the left by a spring 24 bearing against a shoulder 23 so that a pressure block 21 tends to close the chuck. The release lever 26 is pivoted on the edge of a collar 28, around the body, and, when depressed, bears against a shoulder 35 on the drive rod 22, thereby relieving the pressure on the chuck.
Patent GB-427326-A (GB)
Title: A clay composition and articles made therefrom
IPC: C04B33/16
Filed: 1933-10-19
Abstract: A clay composition for the making of bricks, tiles, &c. and for use as a plaster or the like is made by adding substantially pure quartz or felspar to common clay, calcining the mixture and pulverizing to a size which may be from grains of 1/4 inch diameter to the smallest powder obtainable.  The amount of quartz or felspar may be from 1 to 50 per cent of the mixture.  The resulting powder, with or without the addition of cement, may be mixed to a paste with water and used as a plaster or moulded into bricks &c. which are then hardened by steam.  In an example, to common clay is added 5-10 per cent of its weight of pulverized felspar and the mixture is calcined in a rotary kiln having a maximum temperature of about 1250 DEG  C.  The clinker is ground to a fine powder in a rod mill and the powder is mixed with sufficient water to make the particles cohere.  Bricks are moulded at a pressure of 200 tons and are hardened in a steam chamber at 40 lbs. per square inch for from 6 to 10 hours.
Patent GB-1010015-A (GB)
Title: Wheel arrangements for fitting to articles, for example, domestic cabinets, to render them mobile
IPC: B62B5/00
Filed: 1964-07-15
Abstract: 1,010,015. Castors &c. H. R. EDNEY. July 15, 1964. No. 29096/64. Heading A4U. In a castor or wheel arrangement for rendering furniture such as cabinets mobile, two half axles A, E each comprising an axle beam with an arm perpendicular thereto carrying on an axis higher than the axis of the beam a stub axle pin I for mounting a wheel B are adjustably attached to one another by bolts H passing through holes or slots in the beams, the arrangement being such that when the half axles have been adjusted to embrace the cabinet G the weight of the cabinet causes the beams to distort and the perpendicular arms to grip the cabinet more tightly.
Patent GB-158426-A (GB)
Title: Sheet advancing mechanism
IPC: B65H9/14
Filed: 1919-11-24
Abstract: 158,426. Droitcour, M. A. Nov. 24, 1919. Sheet carriers, smoothers, and registering devices; feed-tables.-A sheet-advancing mechanism for forwarding sheets, separated from a pile, to a sheet-taking device such as the impression cylinder of a printing machine, is constructed so that the sheets are fed by tapes over a feed table at a slow speed so that they are not spoiled by contact with the front. gauges, and the tapes are mounted in a pivoted frame which can be moved out of operative position to permit of hand feed over the table, which is also capable of being pivoted out of operative position to permit of make-ready of the impression cylinder. The action is such that before the registered sheet is taken by the impression cylinder, a second sheet is fed over the back of it, and the sheets are smoothed on the table bv brushes or the like carried by the forward roller of the carrier tapes, this set of tapes being arranged to be adjustable longitudinally relatively to a similar set arranged in different vertical planes but in substantially the same horizontal plane. By this means sheets of different length can be released from the drive of the tapes just before reaching the front stops. As shown the sheets are fed successively by a separating device F, Fig. 3, and pass between upper and lower tapes 1, 2, passing over wheels 1<a>, 1<c>, 2<a>, 2<c> which are mounted in bearings carried by brackets 3<v>, 3<w>, Fig. 2, on bars 3 connected by tie-rods and mounted on elbow castings 3a hung on a shaft 3<b>. The bars 3 can swing about the shaft 3b, and in order to maintain the drive for the tapes in all positions the tape wheels are driven by gearing 1<n>, 1<m>, 1<l>, 1j, 1<i>, 1<h> from this shaft 3<b> which is geared to the printing press, or the driving means for the feed separator. The gear 1<p> is on the shaft 1<d> of the wheel 1<c>. From the tapes 1, 2, the sheets pass to tapes 1<f>, 2i, the latter of which pass over a roller 2<k> which keeps the sheet clear of a feed table T which is fitted with trunnions t mounted in a bearing on brackets 2<g> carried by the rods 3. The tapes If also co-operate with tapes 4 which pass over rollers 4<a>, 4<b>, carried in bearings 4<c>, 4<d> connected by racks 4h which are operated by pinions on a shaft 5<f> operated by a hand-wheel 4<i>. This wheel adjusts the position of the tapes 4 which are so set that the wheel 4b is at a greater distance from the front stops G than the length of the sheet. The drive of the tapes 4 is maintained in all positions by a sprocket chain 5h, Fig. 6, which is driven from the shaft 1<d>, and operates a sprocket wheel which is freely mounted on shaft 5<f> and is geared to the shaft 4<a> of the rear tape wheel of the tapes 4. Just in front of the tapes 4 are arranged two brushes 6, Fig. 2, which smoothen out the sheets on the table T. As shown in Fig. 3, each sheet before being taken forward by the impression cylinder c has the succeeding sheet superposed on it for a portion of its length, the under sheet being withdrawn subsequently by the feeding movement of the impression cylinder.
Patent GB-494317-A (GB)
Title: Improvements in or relating to sinks or like containers
IPC: A47L19/02
Filed: 1937-04-22
Abstract: A sink or like container for use in carrying out the method described in Specification 494,305, is formed or provided with one or more inclined sockets for the purpose.  The description corresponds with that in Specification 494,305 but the claims are different.
Patent GB-727224-A (GB)
Title: Centrifuge drum
IPC: B04B7/18
Filed: 1953-10-23
Abstract: 727,224. Centrifugal separators. KRAUSSMAFFEI AKT.-GES. Oct. 23, 1953 [Dec. 13, 1952], No. 29332/53. Class 23. A tapered basket for a strainer separator comprises strips 6 connected to members 3, 7 forming the ends of the basket, the members being relatively rotatable to permit adjustment of the inclination of the basket wall. The strips may be curved or straight or may be formed from a series of straight portions. The wall of the basket may be stiffened by rings.
Patent GB-900040-A (GB)
Title: Exhaust nozzle with thrust deflector
IPC: F02K1/00
Filed: 1960-08-25
Abstract: 900,040. Jet propulsion plant. UNITED AIRCRAFT CORPORATION. Aug. 25, 1960 [Oct. 5, 1959], No. 29370/60. Class 110 (3). [Also in Group XXXIII] Fig. 1 shows an elevation of a gas turbine engine with an afterburner 20, and a vertical section through the nozzle 22. The uppermost parts of the outer and inner surfaces of the nozzle end in a point 64, and the lowermost parts of the outer and inner surfaces end in a point 48, the two points being joined by the lateral edges 66 of the nozzles. An upwardlyinclined throat 38 is formed between the region at point 48 and a region 44 of the inner surface. A part 79 of the nozzle is tiltable to deflect the jet, or may float freely. The uppermost and lowermost parts of the casing may terminate at laterally-extending lines, instead of points 64 and 48. Specifications 765,021 and 777,572 are referred to.
Patent GB-950990-A (GB)
Title: Improvements relating to flat warp knitting machines
Inventor: PORTER ALLAN WILLIAM HENRY
IPC: D04B27/34
Filed: 1961-08-16
Abstract: 950,990. Warp knitting-machines. HOBOURN-F. N. F. Ltd. Aug. 16, 1962 [Aug. 16, 1961], No. 29591/61. Heading D1C. A flat warp knitting-machine comprises a spring loaded tension bar 7 over which the fabric passes between the knitting point and a take up roller. As shown, the fabric 6 passes over a beading 11 fastened by a bolt 14 to a springy steel bracket 13 which is mounted on a cylindrical rod 12. The fabric then panes around a positively driven roller 8 and then over a similar tension bar 9 to a take up roller (not shown). A single tension bar may alternatively be provided.
Patent GB-192363-A (GB)
Title: Improvements relating to fluid pressure regulating and controlling mechanism
IPC: B60T17/18
Filed: 1922-10-31
Abstract: 192,363. Westinghouse Brake & Saxby Signal Co., Ltd., (Assignees of Thomas, T. H.). Jan. 25, 1922, [Convention date]. Pressure-regulating valves; safety valves.-A pressure-regulating valve of the kind controlled by an auxiliary valve has the actuating diaphragm of the auxiliary valve arranged to actuate a relief valve in the event of the outlet pressure rising abnormally due to leakage or other cause. The main slide valve 5 is actuated by a piston 3 subject to inlet pressure admitted through a pipe 12 and exhausted through an auxiliary valve 9. The auxiliary valve is actuated by a spring loaded diaphragm 6 subject to outlet pressure. This diaphragm also actuates the relief valve 10 to connect the outlet to a vent port 17.
Patent GB-1013844-A (GB)
Title: Improvements in or relating to the purification of benzotriazole
Inventor: HOWARD DONALD KEARY
IPC: C09D5/08
Filed: 1963-07-27
Abstract: A solution of crude benzotriazole in a watermiscible glycol or polyglycol solvent is heated at elevated temperature with a decolorizing material and the resulting solution is diluted with water until the resulting solution contains 0.01-5.0% by weight of benzotriazole to give a solution which may be used for the treatment of copper surfaces to prevent corrosion.ALSO:A concentrated solution of purified benzotriazole is obtained by dissolving the crude benzotriazole in a water-miscible glycol or polyglycol solvent and treating the resultant solution at an elevated temperature with a decolorizing material. Suitable solvents are, for example, ethylene glycol, propylene glycol, hexylene glycol, polyethylene glycol and polypropylene glycol and mixtures of two or more of these. Suitable decolorizing materials are, for example, activated charcoal, activated clay, activated alumina, activated bone black, kieselguhr, fuller's earth and pumice.  The solution obtained may be diluted with water to give an anti-corrosive preparation.  In an example, benzotriazole is prepared by the diazotization of o-phenylene diamine dissolved in ethylene glycol and treated with activated charcoal at 80-100 DEG  C. The solution is diluted with water to give a liquid which inhibits corrosion in copper.
Patent GB-421684-A (GB)
Title: Improvements in or relating to radiators or radiator-condensers for internal combustion engines
IPC: F28F1/12
Filed: 1933-10-27
Abstract: 421,684. Surface condensers for aircraft. FAIREY AVIATION CO., Ltd., Cranford Lane, Hayes, Middlesex, and LYON, G., Ranmoor, Fu mer Road, Gerrards Cross, Buckinghamshire. Oct. 27, 1933, No. 29911. [Class 64 (iii)] A vapour-condensing radiator for aircraft engines is built up of hollow fins 14 connecting headers 13, the latter being divided by partitions 15 so that the medium to be cooled flows in parallel through successive groups of fins, the number in each group decreasing along the liquid path from inlet to outlet. The fins are formed of bent over strips of metal, a soldered joint 17 being formed along one edge. One wall of the fin is provided with indentations and tongues are cut from the metal of both walls at these indentations and bent over together and sealed with solder. The fins 14 are provided with slots secured to openings 21 in a drainage manifold 16. The radiator is arranged to conform with the upper or lower contour of an aircraft wing.
Patent GB-1004199-A (GB)
Title: Improvements in or relating to rupturable disc fluid-pressure relief devices
Inventor: PORTER LOUIS MAX
IPC: F16K17/16
Filed: 1963-07-29
Abstract: 1,004,199. Pressure-relieving devices for fluids. FIKE METAL PRODUCTS CORPORATION. July 29, 1963, No. 29989/63. Heading F2V. A rupture disc assembly comprises a rupture disc 56 having a substantially spherical portion 62 which ruptures at a predetermined pressure and a cover disc 60 having a complementary spherical portion 55. The portion 55 is formed with arcuate slots 82 arranged in a circle to form lines of weakness, the space between the ends of the slots being sufficient to prevent ballooning of the disc 56 below the predetermined pressure, but allowing rupture of the disc 56 and the cover disc 60 at the predetermined pressure. A third disc 58 may be provided if the system is subject to vacuum. This disc has slots 70 to allow rupture at the predetermined pressure and tabs 76 to provent inward movement under vacuum.
Patent GB-1519474-A (GB)
Title: Process for producing ethylene-butadiene copolymers
IPC: C08F4/00
Filed: 1975-07-17
Abstract: 1519474 Copolymerization of ethylene and butadiene ANIC SpA 17 July 1975 [2 Aug 1974] 30125/75 Heading C3P Ethylene and butadiene are copolymerized in hydrocarbon or halohydrocarbon solvent using a catalyst system comprising a vanadium compound, a compound of the formula AlR1R2X where R1 and R2 are H or C1-C18 hydrocarbyl group and X is halide, a Lewis or Bronsted acid and thionyl chloride. In the examples the copolymerization is carried in toluene in the presence of hydrogen, vanadium triacetylacetonate, AlEt2Cl, AlEtCl2 and SOCl2.
Patent GB-1055497-A (GB)
Title: Improvements in electronic power amplifying and frquency-multiplying circuits
Inventor: CALLICK ERIC BRIAN
IPC: H03F3/21
Filed: 1964-07-29
Abstract: 1,055,497. Frequency changing. G. & E. BRADLEY Ltd. July 14, 1965 [July 29, 1964], No. 30131/64. Heading H2F. An amplifying and frequency multiplying arrangement operating at about 100 Mc/s. and above comprises two or more amplifiers fed in parallel from a signal source, each amplifier being associated with an individual frequency multiplier which includes a varactor diode or step recovery diode, and the outputs of the multipliers being connected to a common output terminal. As shown, a crystal oscillator MO feeds a first driver D 1  which drives a second driver D 2  supplying in parallel two amplifiers P 1 , P 2 . Each amplifier feeds a multiplier M 1  or M 2  which includes a varactor V 1  or V 2 . The outputs at frequency f 2  (f 2  = n 1 f 1 ) are combined and fed to a further multiplier which includes a varactor V 3 , which provides an output f 3  (f 3  = n 1 n 2 f 1 ) at terminal 13. A similar arrangement of amplifiers and multipliers 10<SP>1</SP> may also feed the terminal 13 to double the power. A greater number of similar arrangements may be connected to the common terminal 13 (Fig. 2, not shown). The multipliers may use step recovery diodes as described in the Hewlett-Packard Journal, Vol. 16, No. 4, December 1964.