baber/WOPTO huggingface dataset:
Patent GB-854567-A (GB)
Title: Electric motor
Inventor: LUATAINEN TEUVO A
IPC: H02K57/00
Filed: 1959-01-28
Abstract: 854,567. Homopolar machines. CARRIER CORPORATION. Jan. 28, 1959, No. 3108/59. Class 35. In a high-speed homopolar motor, the use of slip-rings is avoided by feeding the rotor with D.C. from a rectifier and transformer secondary winding mounted on the rotor shaft, the machine as a whole being A.C. energized. The transformer comprises a primary winding 4 mounted on a core (not shown) and a low-voltage secondary winding 22 on a core 21 rotating with the shaft 20. D.C. energization of the rotor is secured by a rectifier 25, the current being fed by line 23 to flow in the same direction through all the rotor bars 36 between end rings 41, 42, and returning through line 24 passing down the centre of the rotor. Similarly, rectified current is fed to field windings 8, 9 on the stator core 10, producing a pair of like poles 15, 16 embracing the complete 360 degrees of the rotor, the return path being through poles 11, 12, 13, 14 which similarly embrace the rotor shaft.
Patent GB-538956-A (GB)
Title: Improvements in or relating to gas turbine plant
Filed: 1940-02-21
Abstract: 538,956. Gas turbines. SULZER FRERES SOC. ANON. Feb. 21, 1940, No. 3250. Convention date, May 10, 1939. [Class 110 (iii)] Rapid regulation of a gas turbine installation is effected by means of a turbine coupled to the turbocompressor and driven by air from a storage vessel. Air for the combustion chamber 5 is supplied by compressors la, 1 in series. The exhaust from the main turbine 6, which carries a useful power shaft 35, passes through a heat-exchanger 4 to a turbine 6a. An accelerating turbine 13 is coupled to the set 1a, 6a and is supplied with compressed air from a container 8. The turbine 13 has two sets of nozzles and supply is controlled by valves 11, 12 which open in turn. Non-return valves 17, 18 prevent counter flow. Further acceleration can be produced by means of a burner 24 in front of the turbine 6a. Regulation for partial load is provided by a valve 22 byepassing the turbine 6a. When the turbine 13 is not is use a valve 19 is open. In a modification, the turbines 6, 6a are in parallel and the air from the container 8 passes through a heater in the combustion chamber.
Patent GB-112350-A (GB)
Title: Improvements in the Construction of Portable Buildings.
Inventor: REED EDWARD ALBERT
IPC: E04B1/344
Filed: 1917-03-07
Abstract: 112,350. Reed, E. A., and Burt, L. S. March 7, 1917. Portable buildings.-The wall and roof sections of portable buildings are composed of two superposed light wooden frames 1, 2 nailed or screwed together with an intermediate, sheet 3 of waterproof canvas forming the panel filling. Some of the sections are left open as shown at 7 to receive window and door frames. Non-breakable translucent material may be used for glazing. The roof sections are hinged together in pairs, and a ridge fillet 9 may be secured to one side of each pair of frames, or a separate ridge piece may be used. Opposite walls are connected by crossties 10 and U-bolts 13. The sections are of uniform size and may be fitted with the door and window frames before erection.
Patent GB-191970-A (GB)
Title: Improved means for securing strap ends to watches, buckles, or the like
IPC: G04B37/14
Filed: 1922-02-06
Abstract: 191,970. Fitch, E. C., and Waltham Watch Co. Feb. 6, 1922. Aligned sleeves and pin fastenings.-In means for hingedly securing strap ends to watches, buckles, &c., one member is provided with apertured lugs embracing the other member to form an aligned passage through which a connector is passed, either the connector or the walls of the passage being made resilient and bent so as to cause the connector to be held frictionally by the walls of the passage. Lugs f, Fig. 1, on the watch a embrace the looped end e of the strap b, which carries a tube h, a pin k, bent as shown in Fig. 6, being passed through the lugs and tube. The tube h may be bent instead of the pin k or both may be curved, the one being bent to a greater extent than the other. The other end e<1> of the strap b is secured in a similar manner to the buckle d.
Patent GB-1074981-A (GB)
Title: Improvements relating to methods and apparatus for producing spiral bevel and hypoid gears
Inventor: KING OHARLES BURT
IPC: B23F9/10
Filed: 1965-01-23
Abstract: 1,074,981. Gear - cutting. GLEASON WORKS. Jan. 26, 1965, No. 3373/65. Heading B3K. A method of cutting a helicoidal tooth surface of a non-generated spiral bevel or hypoid gear G comprises effecting a relative motion between a gear and a rotary milling or grinding tool T about the helix axis of the tooth surface, the axis of the tool being inclined to the helix axis and the envelope of successive positions of the operating surface of the tool intersecting in a substantially straight line a plane parallel to but offset from the helix axis. The method may be used to rough-cut gears which are to be finished by grinding or by the method of Specification 884,741. A tool cradle 11 on an axis 12 carries a swivel member 17 carrying a tool T, having an axis 14, which can be set at varying radial distances from the axis 12 and can be inclined thereto in intersecting or offset relationship. The work is carried on a slide 26 on a column 27 adjustable on ways 34 on a slide 28 adjustable about an axis 29 on a slide 32. The indexing and driving means may be as described in Specification 1,074,983. The slide 32 is fed towards the cradle, the tool cradle is swung about its axis and the slide 32 continues to be fed along the axis 12 while a tooth space is cut. The work is then withdrawn and indexed while the cradle is returned to its initial position. The cutting-edges of the tool are straight in an axial section of the cutter, so that the tooth shape of the gear is not affected by cutter diameter or inclination. By adjusting the offset of the cutter axis, the gear tooth profiles may be convexly curved by varying amounts. If the cutter is to cut both sides of a tooth space simultaneously, a greater cradle swing is required. The profiles of the cutter teeth are then convexly curved as in Fig. 8, the method of determining such curvature being described in the Specification.
Patent GB-923719-A (GB)
Title: Polymeric compositions
Inventor: GAZZARD EDWARD GEORGE
IPC: C08L63/00
Filed: 1960-02-01
Abstract: Metal including tin plate and steel panels are coated with compositions comprising diphenylol propane diglycide ether; a copolymer of methyl methacrylate, coconut palm kernel alcohol metharcylates and methacrylic acid, a copolymer of methyl methaycrlate, ethyl acrylate, acrylic acid and acrylamide, or a copolymer of vinyl acetate and arotonic acid; a hardening accelerator selected from a reaction product of diethylamine and a reaction product of polyoxyethylene glycol and hydrobromic acid, a reaction product of propylene oxide N-methyl diethanolamine, a reaction product of N:N-diethylaminopropylamine and propylene oxide or a reaction product of 5:N:N-diethyl-2-aminopentane and propylene oxide; pigments, i.e. titanium dioxide; fillers, i.e. porcelain balls and solvents, i.e. butanol and xylene; the coatings being cured by the application of heat.  Specifications 809,257, 809,658 and 810,940 are referred to.ALSO:A hardenable polymeric composition comprises either a vinyl copolymer having an epoxy reactive group made by co-polymerizing a vinyl ester with a minor amount of a polymerizable carboxylic acid and optionally with a minor amount of another polymerizable modifying component, or an acrylic or vinyl copolymer having an epoxy reactive group made by copolymerizing a minor proportion of a polymerizable carboxylic acid with a major proportion of an alkyl acrylate or methacrylate which major proportion may be optionally replaced completely or in part by another polymerizable modifying component, an epoxide and a hardening catalyst of the formula <FORM:0923719/IV(a)/1> where R1 and R2 are hydrogen or alkyl radicals where R1 and R2 are hydrogen or alkyl radicals containing up to eight carbon atoms, R is hydrogen or methyl, x is from 1 to 100 and y is 2, 3 or 5.  The examples describe the preparation of copolymers from methyl methacrylate, coconut palm kernel alcohol methacrylates and methacrylic acid; methyl methacrylate, ethyl acrylate, acrylic acid and acrylamide and vinyl acetate and crotonic acid; the preparation of amine catalysts from a reaction product of polyoxyethylene glycol and hydrobromic acid and diethylamine; propylene oxide and N-methyl diethanolamine, N:N-diethylaminopropylamine and propylene oxide and 5:N:N-diethyl-2-amino pentane and propylene oxide, and the admixture of the copolymers and catalysts with diphenylol propane diglycide ether, pigments, i.e. titanium dioxide, fillers, i.e. porcelain balls and solvents, i.e. butanol and xylene, the compositions being applied as coatings and cured in situ by the application of heat. Specifications 809,257, 809,658 and 810,940 are referred to.
Patent GB-1416882-A (GB)
Title: Tumbler type dryers
IPC: F04D29/28
Filed: 1972-03-01
Abstract: 1416882 Tumbler dryers HOTPOINT Ltd 23 Feb 1973 [1 March 1972] 03475/74 Divided out of 1416881 Heading F4G [Also in Division F1] The subject-matter of the present Specification is as that in Specification 1,416,881 but the claims relate to a construction of fan impeller for a fan in a tumbler dryer.
Patent GB-819829-A (GB)
Title: Improvements relating to means for raising the hind quarters of animals
IPC: A01K15/00
Filed: 1957-02-01
Abstract: 819,829. Animal holding appliances. BAGSHAWE, P. P. Jan. 30, 1958 [Feb. 1, 1957], No. 3492/57. Class 81 (2). Apparatus for use in lifting the hind quarters of an animal by lifting tackle connected to it comprises a pair of interconnected frames each shaped to engage under the hook bones of the animal and means to progressively close the frames towards one another to grip the animal. U-shaped tubular steel frames comprising parallel arms 10, 10a interconnected at their lower ends by cross-pieces 11, 11a are pivotal at their upper ends on a first bolt 13. A tubular cross-arm 16 of a T-piece is mounted on a second bolt 17 interconnecting the arms 10 of one frame intermediate its ends. The stem 18 of the T-piece loosely carries a cross-bar 19. When the frames are placed one on each side of the hindquarters of the animal (around the hook bones of the pelvis in the case of cattle) the cross-bar 19 is tightened against the other frame under lugs 20 by a wing-nut 21 on threads 22 of the stem 18. Lifting tackle is connected to a loop 15 fitted on the first bolt 13. The cross-pieces 11, 11a of the frames may be padded.
Patent GB-707017-A (GB)
Title: Improvements relating to steering gear of the screw and nut type
IPC: B62D3/08
Filed: 1952-02-11
Abstract: 707,017. Screw-and-nut gearing DAIMLERBENZ AKT.-GES. Feb. 11, 1952 [Feb. 10, 1951], No. 3548/52. Class 80 (3) A threaded steering  spindle 15 is engaged by a nut segment 20 having a part - spherical connection with a rocker arm 22 and one or more endless series of balls 26 are provided between the nut segment and the spindle and are retained in the threads of the latter by a sleeve 27 which is apertured to receive the nut segment and thus moves with it. An adjustable loading spring, Fig. 1 (not shown), operates between the housing cover and the rocker shaft to hold the segment 20 in engagement with the spindle; As shown, the spindle has two threads with two series of balls, and a double return duct 30 is attached to the sleeve 27. The inner surface of the sleeve is smoothly cylindrical. In a modification the inner surface is provided with channels corresponding with the threads on the spindle 15.
Patent GB-512466-A (GB)
Title: Improvements in rotary gear pumps
IPC: F04C11/00
Filed: 1938-02-04
Abstract: 512,466. Gear pumps. BRISTOL AEROPLANE CO., Ltd., and FRISE, L. G. Feb. 4, 1938, No. 3569. [Class 110 (ii)] A multi-stage gear pump comprises one pump which supplies a common inlet leading to two or more pumps, which have separate delivery ports. A shaft 17 drives gears 22, 28, 31, keyed to it, and meshing gears 23, 29. 32, mounted on needle bearings 26. Diaphragms 27, 48 separate the pump stages. The delivery chamber of the primary pump is provided with a ball valve, which yields under excessive pressure allowing liquid to pass back to the suction side through a groove 40. The delivery of this pump is led to a hole 43 which communicates with the intake of the two secondary pumps, which have separate delivery ports. The combined capacity of the two secondary pumps may equal that of the primary pump, or may be slightly less. The ball valve may be dispensed with. The primary pump may comprise two pumps in parallel. Liquid may be supplied to the primary pump under pressure from a further gear pump. The delivery ports of the secondary pumps may supply legs of a retractable undercarriage, of an aircraft. The secondary pumps may be of unequal capacity. Specification 464,877 is referred to.
Patent GB-1125672-A (GB)
Title: Improvements in or relating to burner control circuits
IPC: F23N5/08
Filed: 1967-01-24
Abstract: 1,125,672. Controlling burners. APPAREILLAGE THERMOFLEX ETABS J. M. DARD. 24 Jan., 1967 [1 Feb., 1966], No. 3572/67. Heading F4T. [Also in Divisions G1 and H2] A single-phase motor M drives a pump for feeding fuel to a burner and a turbine supplying combustion air, the motor being associated with an ignition transformer T. Closure of thermostat switch TH energizes relay RA whereby a larger section E 1  of the main winding of the motor is energized as well as the auxiliary winding E 3  and the transformer T. A safety relay opens contacts RS 1  if windings RS, RSB become over-heated. Under normal conditions, a flame detector cell de-energizes relay RA to. disconnect the transformer T and the auxiliary winding E 3  of the motor. At the same time, the two sections E 1 , Eg of the main winding of the motor are connected in series. In a modification, the auxiliary winding Eg is controlled by a relay having its coil in series with the winding E 1  so that the auxiliary winding is de-energized as soon as the motor starts to rotate. In a further embodiment, the winding Eg is controlled by a switch which opens when the fuel-pressure at the burner nozzle reaches a predetermined value.
Patent GB-242488-A (GB)
Title: Improvements in bells for bicycles and the like
IPC: G10K1/074
Filed: 1925-02-09
Abstract: 242,488. Herbst, R. Feb. 9, 1925. Bells, fixing.-The upper clip member a of a bicycle &c. bell passes through slots c in a recess d in the lower gong member b and is riveted therein by the end of the main spindle e. The slots may be in the bottom of the recess as shown, or in the sides, the clip being in either case bent to shape after insertion.
Patent GB-111029-A (GB)
Title: Improvements in Boring, Drilling, Tapping and Milling Machines.
IPC: B23Q5/32
Filed: 1917-03-13
Abstract: 111,029. Harvey, G. & A., and Clements, A. B. March 13, 1917. Combined turning, boring, drilling and milling machines; boring-bar machines.-A horizontal boring, drilling, tapping, and milling machine for the kind described in Specification 109,400 is provided in front with a hand-wheel 1 mounted on a hollow shaft 2 carrying a spur wheel 3 for operating a train of wheels actuating the feedmechanism, and within the shaft 2 is a shaft 4 carrying a second hand-wheel 5 controlling, through bevel-gearing 6, 7. the traversing movements.
Patent GB-424726-A (GB)
Title: Improvements in or relating to friction material such as brake linings
IPC: F16D69/02
Filed: 1934-02-03
Abstract: 424,726. Friction linings. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(Raybestos Co. ; 1427, Railroad Avenue, Bridgeport, Connecticut, U.S.A.) Feb. 3, 1934, No. 3639. [Class 103 (i)] [See also Group VIII] A flexible unitary friction element for use, for instance, as a brake lining has opposite surfaces with different frictional qualities either of which may be used as desired. The following examples of materials with surfaces having different coefficients of friction are given : (1) woven fibrous material is saturated with tar and petroleum oil and one side is treated also with chinawood oil, the material when dried having a coefficient of friction of À3-À4 on one side and À5-À6 on the other ; (2) a woven tape is treated with different binders on its two sides, for example, a phenol resin and chinawood oil in such a manner that each binder penetrates only part of the thickness ; (3) in making a material of the unwoven fibrous type substances such as wood flour, coal, graphite, carbon black, lead dust, litharge are introduced into the fibres on one side to modify the coefficient of friction on that side, prior to saturating with a binder ; (4) when rollers are used for making a sheet of asbestos-rubberfiller compound, the compound may be changed when half the required thickness of the sheet has been built up ; (5) two separate linings with differential frictional characteristics are secured together as by riveting or cementing with phenol resin or rubber compound and a sheet of cloth, perforated metal or wire mesh is interposed to carry the adhesive and against which the attaching rivets may rest ; (6) two asbestos cloths are prepared carrying different rubber compounds, one, for instance, containing graphite or lead dust, and strips of the cloths are folded together to produce a multiple ply combination having the cloths exposed respectively on the two sides.
Patent GB-776571-A (GB)
Title: Improvements in or relating to jacquard machines
Inventor: DRACUP CYRIL THORNTON
IPC: D03C3/24
Filed: 1955-02-08
Abstract: 776,571. Jacquards. DRACUP & SONS, Ltd., S. Feb. 8, 1956 [Feb. 8, 1955], No. 3647/55. Class 142 (2). A jacquard " cylinder consists only of the spiked polygonal discs 51 that carry the card chain 91, a separate perforated plate 85 being provided to press the cards against the needles 7. The plate 85 is fixed on a shaft 73 pivoted in the cylinder mounting, which reciprocates towards and away from the needles in the usual way ; an arm 57 on the shaft, and a link 55 pivoted at a fixed point 52, cause the plate 85 to swing into the vertical position that would be occupied by the operative face of an ordinary cylinder as the assembly approaches the needles.
Patent GB-764084-A (GB)
Title: Improvements in or relating to the production of metal oxides
Inventor: OLSON CARL MARCUS
IPC: C01B13/22
Filed: 1954-02-08
Abstract: <PICT:0764084/III/1> In the vapour phase decompositions of a chloride, bromide or iodide of a metal to form the corresponding oxide with an oxidizing gas the reaction zone is provided with a porous refractory wall through which a shielding gas is passed from an external source to prevent scale decomposition.  In the drawing an oxygen containing gas enters a vertical tube 3 through an inlet 4 and titanium tetrachloride for example enters through an inlet 11 to pass to a chamber 12 surrouding the tube 3 and from which chamber the titanium tetrachloride is introduced into the oxygen stream as a sheet through a sloted inlet 13 as in Specification 757,703.  The reactant inlet arrangement is enclosed in a furnace 1 which may be heated or insulated.  The reactant mixture passes to the reactor 6 formed with a porous wall 7 which is in turn encased in a jacket 15 through which the shielding gas is passed.  Reaction products are removed at 5. Typical metal oxides which may be formed by the process are those of iron, titanium, silicon, zirconium antimony, tin, zinc and aluminium employing oxygen, air or other oxygen containing gas preferably humidified, or steam.  The shielding gas may be nitrogen, carbon dioxide, chlorine, helium or argon which are inert to the reaction product, or the gaseous reaction products may be recycled in admixture with the shielding gases. Alternatively the shielding gas may be composed of gases which react with the oxide scale as described in Specification 715,255; for example, a mixture of carbon monoxide and chlorine may be employed which decomposes oxide scale to tetrachloride which is then re-oxidized to the oxide.  The porous wall may be formed or porcelain, silica, nickel, steel porous carbon or graphite the average pore size of which is less than 130 microns. The pore size may be reduced to the desired value by applying a porous coating thereto such as by burning a metal halide within the wall. According to a typical example titanium tetrachloride and humidified air preheated to 1020 DEG C. were passed into a reaction vessel having a porous wall through which dry nitrogen at 20 DEG C. was passed.  The reaction retention time is normally from 0.1 to 5 seconds.  If desired the porous wall may be extended up to the lower side of the slotted inlets 13 thereby minimizing scale decomposition about that inlet.
Patent GB-290340-A (GB)
Title: Improvements in or relating to heat insulating devices
IPC: A47J39/00
Filed: 1927-02-09
Abstract: 290,340. South Metropolitan Gas Co., Chandler, D., and Thomas, J. S. G. Feb. 9, 1927. Casings.-A heat-insulating device for heating appliances such as cooking stoves comprises one or more sheets 3 of polished metal, not less than 0.4 m.m. thick, arranged between inner and outer casing walls 1, 2. In the form shown, the sheet is provided with spaced corrugations 4, 5 which divide the space into horizontal compartments, the corrugations 4 extending close to, but not into contact with, the walls, whilst the remainder extend up to the walls to position the sheet.
Patent GB-213541-A (GB)
Title: Improvements in rotary apparatus for sucking, compressing and delivering all kinds of fluids
IPC: F04B27/047
Filed: 1924-02-14
Abstract: 213,541. Jouanneaux, P. March 27, 1923, [Convention date]. Eccentric-actuated pumps; multiple-acting piston pumps.-A pump or compressor comprises four radial cylinders A - - A<3> mounted on a hollow shaft F which serves as the delivery pipe and communicates with the cylinders through delivery valves G. The pistons are actuated on the suction stroke by springs L and on the delivery stroke by an eccentric track M on a rotating drum H mounted on the shafts F and J. The fluid enters the cylinders through ports I in the drum and valves C in the cylinders.
Patent GB-535462-A (GB)
Title: Improvements in hand brake levers on road vehicles
IPC: G05G7/02
Filed: 1939-03-02
Abstract: 535,462. Hand brakes for vehicles. BLAKE, F. W. March 2, 1940, No. 3935. [Class 103 (i)] Brake gear for vehicles, particularly for road trailer units normally supported at the front end on a power unit, in which a pull rod 2, as shown in plan Fig. 1, applies the brake by means of an arm 3 on a short vertical shaft 4, which is turned by means of a link 6 connected to the shorter arm of a J-shaped lever 7 pivoted at 8 to the vehicle frame. The means for turning the 'lever 7 comprises a forked member 10 engaging the lever 7 and slidable by means of a carriage 12 along a guide 14 to turn the lever 7 into a position parallel to the guide so that the brake return spring 9 cannot turn the lever 7 back.