baber/WOPTO huggingface dataset:
Patent GB-1517512-A (GB)
Title: Turnover apparatus
IPC: B65G47/252
Filed: 1974-10-15
Abstract: 1517512 Turning loads DAVY-LOEWY Ltd 13 Oct 1975 [15 Oct 1974] 44611/74 Heading B8H [Also in Division B3] An apparatus for turning an elongate workpiece 20 of generally rectangular cross-section through 90 degrees in a direction normal to its length comprises a first member 1 supporting the workpiece, and a second member 11 movable substantially vertically relative to the first member, the member 11 having two relatively angled workpiece supporting surfaces 13, 14 between which the workpiece is gravitationally passed to turn it through 90 degrees before re-deposition on the surface 5 of the first member 1. The second member 11 is pivotally mounted on a pair of links 10 pivotable under the control of a piston and cylinder device 12. In operation, the workpiece 20, after sliding down angled surfaces 6 and 5 of the first member 1 and into engagement with a stop 8 thereon, is lifted by the surface 13 upon extension of the device 12, a stop 15 on the second member 11 locating it relative to the links 10. Further extension of the device 12 causes a wing 17 on the member 11 to engage a stop 18 on the member I, which pivots the member 11 causing the workpiece to slide down the surface 13 on to the surface 14. Continued pivoting of the member 11 until a further stop 16 thereon engages the links 10, deposits the workpiece back on the first member 1 with a 90 degree rotation, whereafter the second member 11 is lowered. In the embodiment of Fig. 5 (not shown) the stops on the second member are replaced by an arcuate slot therein engaging a pin on the links. In the embodiment of Fig. 6 (not shown), the second member is pivoted as its maximum elevation is approached, by an adjustable stop rod connected to the wing of the second member.
Patent GB-1077298-A (GB)
Title: Improvements in or relating to rotary piston machines
IPC: F16C33/10
Filed: 1964-11-02
Abstract: 1,077,298. Rotary piston machines. KARL SCHMIDT G. m. b. H. Nov.2, 1964[Nov.2, 1963], No. 44646/64. Heading F1F. [Also in Division F2] In a rotary piston machine, Fig. 2 (not shown), in which an eccentric (2) is rotatable in the piston (3) thereof, a bearing bush (4) disposed between the eccentric and the piston comprises as many bearing surfaces as the rotary piston has external working faces. The piston works in a trochoidal chamber (5) and has three working faces (7, 8, 9) so that the bush (4) is provided with three bearing surfaces which provide three wedge-shaped lubricating clearance spaces between the piston and the eccentric. In Figs. 3 and 4 (not shown) the rotary piston has only two working faces and hence the bearing provides only two wedge-shaped clearances for lubricating oil, Fig. 7 (not shown). The radius (R L ) of each bearing surface is between 0À03% and 5% greater than the radius (r z ) of the eccentric, and the centre of curvature (M L ) of each surface is offset from the centre (M) of the eccentric (Z) by an amount equal to (0À4 to 1À8) (R L - r z ). The centre (M L ) of each bearing surface is offset from the line bisecting the peripheral length of the surface and passing through the centre (M), Fig. 6 (not shown) by an angle of between <SP>1</SP>/ 3  and <SP>1</SP>/ 20  of the centre angle subtended by the bearing surface. The cross-section of each bearing surface need not be a circular arc but may be an elliptic, hyperbolic or parabolic arc. Oil may be supplied to a central passage (57) in the shaft, Fig. 12 (not shown) of the eccentric (56) to pass therefrom through radial ducts (58, 59) to the bearings supporting the eccentric and through further ducts (62, 63) opening radially inwardly of the ducts (57, 59) to supply lubricating and cooling oil to the piston.
Patent GB-1317070-A (GB)
Title: Method of acidifying milk
IPC: A23C19/05
Filed: 1971-09-24
Abstract: 1317070 Acidifying milk, curds BATTELLE DEVELOPMENT CORP 24 Sept 1971 [8 Oct 1970] 44711/71 Heading A2B In a uniform acidification of milk or cheese curd, there are employed dispersed through the milk or curd milk soluble solid acid particles which have been coated with a material which will dissolve or disperse in the milk or curd, whereby dissolution is delayed. The process may be used in conjunction with other acidification or coagulation processes, particularly in the production of cheese curd. Suitable acids include lactic, acetic, phosphoric, citric, malic, tartaric, fumaric, adipic and succinic acids. Suitable coatings include fats. oils, fatty acids, and fatty acid glycerides.
Patent GB-1071969-A (GB)
Title: Power plant for helicopter
Inventor: COPLIN JOHN FREDERICK
IPC: B64C27/18
Filed: 1964-11-05
Abstract: 1,071,969. Helicopters. ROLLS-ROYCE Ltd. Nov. 1, 1965 [Nov. 5, 1964], No. 45083/64. Headings B7G and B7W. A helicopter rotor. 17 is formed with a duct 18 housing a gas-turbine engine 19 coaxial with the rotor axis, and driving a fan 20. The rotor comprises coaxial ducts 22, 23, the duct 23 transmitting exhaust gases from the engine to corrugated tip jet nozzles 24 enclosed within tip ducts through which ambient air is drawn. The annular cavity between ducts 22 and 23 is supplied with air by fan 20 for discharge from a spanwise slot to promote circulation and lift on the rotor blades. Reference has been directed by the Comptroller to Specification 756,050.
Patent GB-1069294-A (GB)
Title: Snap fastener socket
IPC: A44B17/00
Filed: 1964-11-05
Abstract: 1,069,294. Stud & socket fastenings. UNITED-CARR Inc. Nov. 5, 1964 [Nov. 6, 1963], No. 45189/64. Heading E2B. A snap fastener socket comprises a tubular wall integral with a prong receiving and clenching portion the junction of the outer wall of the portion with the inner wall having a greater curvature than the curvature of the inner wall and the tubular wall lies substantially within the limits defined by the outer wall. The fastener is made from sheet metal and the tubular wall 3 and stud engaging lip 4 are slit to provide resiliency for engagement with a nonresilient stud. Adjacent the bend 9 of the prong receiving portion the metal is stiffened by cross hatching impressions.
Patent GB-1315015-A (GB)
Title: Cutting of elongate workpieces
IPC: B23Q7/02
Filed: 1970-09-24
Abstract: 1315015 Circular saws MANNESMANNROHREN-WERKE GmbH 24 Sept 1970 [25 Sept 1969] 45545/70 Heading B5L A method of cutting a plurality of straight elongate workpieces 1, Fig. 1, by a cut at right angles to the longitudinal axis of each workpiece comprises guiding the workpieces one after another along a semicircular path with their axes remaining parallel to each other, and cutting the workpieces progressively as they describe the path. As described workpieces 1 are fed by a conveyer worm 2 to a number of coaxial parallel holder discs 3, Fig. 6, having peripheral clawlike elements 4. Each workpiece is picked up by a set of elements 4 and held in position by a set of movable inner clamping elements 5, Fig. 1. The discs are rotated in the direction of arrow 7 to carry the workpieces about a semicircular path to a position 10<SP>11</SP> where the clamping elements release them on to a conveyer worm 9. A circular saw 6 is mounted eccentrically of the discs 3 so that as the workpieces move they are progressively cut by the saw. The saw may be segmental. A plurality of saws may be provided and these and the discs 3 may be adjustable axially. The saw blade is preferably smaller by the diameter of a workpiece than the diameter of the arcuate path traced out by the outer portions of the workpieces, and the distance between the saw axis 6<SP>1</SP> and disc axis 3<SP>1</SP> is preferably half the diameter of a workpiece. The saw and discs may be rotated in the same or opposite directions.
Patent GB-1022073-A (GB)
Title: A burner, and a furnace for the thermal cracking of hydrocarbons
IPC: B01J19/26
Filed: 1962-12-04
Abstract: <PICT:1022073/C4-C5/1> Hydrocarbons are pyrolysed to acetylene and ethylene in a furnace having at one end a burner (see Division F4) comprising a movable plate 7 containing perforations with nozzles, having adjustable valves, terminating in such perforations (fuel and oxidant being introduced through the nozzles and perforations), a constricted portion 16 close to the point of injection 14 of hydrocarbons and a reaction zone 17. Hydrocarbons may be introduced tangentially or radially or at some intermediate angle and at an angle of 0-\sB45 degrees to a plane at right-angles to the longitudinal axis through slits or a series of parallel small holes.
Patent GB-1099629-A (GB)
Title: Improvements in or relating to hydraulic power transmission for vehicles
IPC: B60K17/10
Filed: 1966-10-13
Abstract: 1,099,629. Motor vehicle hydraulic transmissions. POCLAIN. Oct. 13, 1966 [Oct. 13, 1965], No. 45799/66. Heading B7H. [Also in Division F2] A four-speed hydrostatic transmission for a vehicle comprises pumps 13, 14 supplying individual wheel motors 7, 8, 9, 10, the pumps driving both the front and rear axles in first and second gears, but only the front axle in third and fourth gears, the rear axle then being disconnected by hub clutches 12. As shown, each of the motors 7 ... 10 is of the dualcapacity type described in Specifications 1,063,673 and 1,065,227, while the capacity of pump 14 is three times that of pump 13, the rear wheels being connected to the axle through 3 to 1 reduction gears 11. A rotary selector valve 28 has ports 29a, 29b for interconnecting the pump and motor supply lines, and a cam 29 operating a switch 31 controlling a solenoid valve 32 for a compressed air reservoir 40 supplying the clutches 12. For first ratio connections are made so that pumps 13, 14, respectively supply motors 7, 8 and 9, 10 set at their maximum capacity and the clutches 12 are engaged. For second ratio the capacity of the pumps is reduced to half, to double the speed, clutches 12 remaining engaged. For third ratio cam 29 operates switch 31 to exhaust and disengage the clutches 12, both pumps 13, 14 then supplying only the front wheel motors 7, 8 set at maximum capacity, to again double the speed, while for fourth ratio the motor capacity is again halved to double the speed, the clutches 12 remaining disengaged. The same speeds are obtained in reverse. The system also includes speed limiting tapered throttle valves 23, 24 providing hydraulic braking supplementing the normal brakes, Fig. 5 (not shown).
Patent GB-1243584-A (GB)
Title: Improvements relating to ground-retaining walls
IPC: E02D5/20
Filed: 1969-09-17
Abstract: 1,243,584. Revetments, concrete panels. SOLETANCHE S.A. 17 Sept., 1969 [7 Oct., 1968], No. 45888/69. Headings E1B and E1H. A revetment is constructed by excavating the ground to form aligned trench-sections, filling each of these sections with bentonite mud after placing a reinforcing mesh 17 at the bottom, lowering a pre-cast concrete-panel 3 into close proximity with the mesh, filling holes 7 containing the upper ends of reinforcing wires 8 with a cement or syntheticresin binder and providing a layer 21 thereof, lowering a further panel 3a so that reinforcing wires 8a therein enter the holes, and charging the bottom of the each trench section with concrete until the foot of the panel 3 is immersed therein the concrete being fed through a hose 22 inserted through passages 5, 5a in the panels. The ground on one side of the wall is subsequently excavated to a level 18. Holes 9 in each panel facilitate lifting and lowering by cables 19. Grooves 6 co-operate with columns 10 while the panels are being lowered, these columns being removed thereafter and the grooves filled with concrete to join laterally adjacent panels. Alternatively, adjacent panels have overlapping rabbeted ends, Figs. 3 and 4 (not shown), with a gap therebetween that is filled with concrete through an injection tube. The upper and lower panels may be coupled to each other by at least one cable, Fig. 6 (not shown). (For Figures see next column)
Patent GB-1029380-A (GB)
Title: Improvements in grab buckets
IPC: B66C3/12
Filed: 1964-11-11
Abstract: 1,029,380. Grab-buckets with detachable sheaves. McDOWELL-WELLMAN ENGINEERING CO. Nov. 11, 1964 [Nov. 13, 1963], No. 45995/64. Heading B8H. To facilitate changing grab-buckets when different materials are to be handled, a sheave apparatus comprising upper and lower blocks 10, 11, Fig. 2, may be detached from upper and lower cross-members 74, 89 of the bucket by withdrawing pins 95, 96 and 98, 99. A hold line 16-17 passes round a sheave in the upper block and a closing line 14-15 passes round sheaves in both blocks. When they are not attached to a bucket the two sheaves may be clamped together by bolts which pass through flanges 28, 49. The bucket portions 60, 61 are pivoted to the cross-member 89 by pins 84, 85 and are provided with bump-stops 90, 91. Fig. 4 (not shown) illustrates a bucket for very finely divided material which has a tongue 114 cooperating with a resilient lining 116 in a groove 115, and dust covers 117, 118. With the bucket resting on the ground in the open position the upper sheave block is first pinned to the upper cross member 74 and then the lower block is pinned to the cross-member 89.
Patent GB-1323966-A (GB)
Title: Percussion drilling apparatus
IPC: E21B4/14
Filed: 1971-10-04
Abstract: 1323966 Percussive drills BAKER OIL TOOLS Inc 4 Oct 1971 [23 Dec 1970 5 May 1971] 46022/71 Heading B4C [Also in Division E1] In a down-the-hole percussive drill comprising a casing 10 having a cylinder of diameter T and a cylinder of greater diameter S, and a hammer piston 28 engaging the walls of the cylinders, driving fluid is directed into the cylinder of diameter T above the smaller diameter piston portion 45 and into the cylinder of diameter S above the larger diameter piston portion 33 to drive the hammer piston to impact against an anvil 18 carrying, or associated with a bit C. With parts of the drill positioned as shown driving-air passes through the drill string B, past a non-return valve 200 which prevents water entering the drill, and through annulus 20, ports 23 and duct 50 to raise the hammer piston for a return stroke. As a shoulder 58 on the hammer piston passes ports 23 driving-air enters an annulus 44 about the piston to force the hammer piston downwardly for an impact stroke. As a shoulder 57 on the hammer piston moves into the region of an exhaust groove 31 driving-air is exhausted from the drill through ducts 47, 49 to scavenge drillings from the hole. The anvil and bit are retained in the casing by a two part nut 16 having internal projections meshing with external grooves on the anvil which permit rotation of the bit by the drill string.
Patent GB-1479199-A (GB)
Title: Acne treating composition
IPC: A61K33/14
Filed: 1974-10-24
Abstract: 1479199 Compositions containing sodium chloride crystals BRISTOL-MYERS CO 24 Oct 1974 46044/74 Heading A5B Compositions comprising sodium chloride crystals in a base suitable for topical application are used in the cosmetic treatment of acne-affected skin.
Patent GB-1032399-A (GB)
Title: Rotary piston machines
IPC: F02B55/04
Filed: 1963-11-22
Abstract: 1,032,399. Rotary-piston machines. N.S.U. MOTORENWERKE A.G. and WANKEL G.m.b.H. Nov. 22, 1963 [Nov. 28, 1962], No. 46172/63. Heading F1F.  A rotary-piston machine e.g. an I.C. engine, of the trochoidal n and n+1 lobe type comprises a piston 4, Figs. 1 and 2 (not shown) containing a plurality of cavities 5 which are charged with a liquid coolant through bores in a rotatable shaft 2 supporting the piston on an eccentric 3, or bores in a side wall 1 of a housing for the piston, the coolant being periodically ejected from each of the cavities by acceleration forces through an outlet opening 7 and at least one collecting pocket 10 formed in an annular body or ring 9 which is fixed by a pin 8 to be rotated with the shaft. Each of the pockets 10 is in register with one of the openings 7 when the acceleration forces acting on the coolant in the associated cavity are directed radially towards the shaft. The ring 9 is provided with an outwardly-orientated flange or edge 15 which overlaps a portion of the wall 1 to prevent coolant passing into a gap between the wall and the piston containing a sealing ring 40. In a modification, Fig. 3 (not shown), the pockets 10 are formed in a cylindrical member or body 16 attached to the shaft 2 in register with an axially-extending passage 17 for the coolant. In another modification, Fig. 4 (not shown), the collecting pockets 30 are formed in an axial extension 32 of the eccentric 3<SP>1</SP> in alignment with an axiallyextending passage 37 for the coolant. In a further modification, Fig. 5 (not shown), the collecting pockets 28 are formed in a ring 9<SP>1</SP> having a hub 27 attached to the shaft 2 and a sealing ring 52 engaging with a ring 50 fixed to the piston, the pockets being inclined relative to the shaft to promote the flow of coolant by centrifugal action. In another modification, Figs. 6 and 7 (not shown), the collecting pockets-22 are formed in an annular body 18 attached to the side of the piston by screws 19 and carrying a sealing ring 25 which engages with the piston. Each pocket has an outwardly-inclined radially-outermost surface 21 to effect ejection of the coolant by centrifugal action. The outer surface of a hub portion 20 of the body, includes a helical oil-return groove 26.
Patent GB-1506476-A (GB)
Title: Fibre-reinforced metal composites
IPC: C22C49/06
Filed: 1975-11-11
Abstract: 1506476 Composite casting E I DU PONT DE NEMOURS & CO 11 Nov 1975 [11 Nov 1974] 46590/75 Heading B3F [Also in Division E1] A fibre-reinforced aluminium composite comprises from 10 to 80 volume per cent of polycrystalline alumina fibres which have been caused to react with an aluminium alloy containing from 1 to 8% by weight of lithium, preferably by infiltration in a mould at a temperature of from 25 to 100 C. above the melting point of the alloy for a time which is less than 15 minutes, such that a reaction sheath containing lithium is formed on each fibre, the aluminium alloy being then cooled to form a matrix containing from 0À5 to 5À5 weight per cent of lithium. The aluminium alloy contains at least 60% by weight of aluminium, preferably at least 90%, and the fibres are present in an amount of from 15 to 70 volume per cent, preferably 30 to 60 volume per cent. The fibres may be either in the form of continuous filaments or discontinuous fibres having a length of at least 3 mm., the latter being either randomly oriented or aligned. The fibres contain at least 60% by weight of aluminium oxide, preferably at least 80%, the most preferred fibres containing at least 95% by weight aluminium oxide. The preferred average diameter of the fibres is from 15 to 30 Á. Other oxides may be present in the fibres in small amounts. The matrix material may be alloyed with additional elements, e.g. copper, iron, magnesium, manganese, nickel, silicon, tin, zinc and/or titanium. and may also contain in an amount not exceeding 1% by weight, beryllium, bismuth, boron, cadmium, calcium, chromium, gallium, lead, sodium, strontium, vanadium and/or zirconium.
Patent GB-1044790-A (GB)
Title: Domestic cooker ovens
Inventor: DAVIES JOHN GARFIELD
IPC: A47J39/00
Filed: 1963-11-28
Abstract: 1,044,790. Domestic cooker ovens. PARKINSON COWAN Ltd. Nov. 30, 1964 [Nov. 28, 1963], No. 46979/63. Heading F4W. The oven 10 of a domestic cooker is heated by forced convection, the air drawn through apertures 13 at both sides of the bottom of the rear wall 12 by an electric fan 16, being returned to the oven interior via ducts 15, 17 and an aperture 18 containing electric heating elements 20. The proximity of the apertures 13 and 18 promotes within the cooking space itself a substantially closed path for a major portion of the air flow.
Patent GB-1218733-A (GB)
Title: Combustion chambers having remote viewing devices structurally combined therewith
Inventor: KERSHAW FRANK
IPC: F23N5/08
Filed: 1966-10-21
Abstract: 1,218,733. Furnace observation devices. ASSOCIATED BRITISH COMBUSTION Ltd. 22 Jan., 1968 [21 Oct., 1966], No. 47248/66. Heading F4B. [Also in Division H4] A combustion chamber has a remote viewing device structurally combined therewith, the device comprising a plurality of photo-electric cells 4 arranged for example in a square pattern, each cell being individually connected via amplifying means 5 to a like plurality of lamps 6 similarly arranged. In use an image of the burners 2 sufficient to determine the state of each will be formed on the square lamp panel. The brightness of the picture may be adjusted by means of a dimmer control. A plurality of these viewing devices may be sighted on to a pulverized fuel furnace, the outputs of all of the amplifiers of all of the devices being also sunned and fed to a computer for control or monitoring purposes.
Patent GB-1138461-A (GB)
Title: Polyurethane foam materials
Inventor: HARRISON WARRINGTON CLIFFORD
IPC: C08L75/04
Filed: 1964-11-20
Abstract: 1,138,461. Laminates. MARLEY TILE CO. Ltd. 5 Nov., 1965 [20 Nov., 1964], No. 47375/64. Heading B5N. [Also in Division C3] Laminates may be prepared from a polyurethane foam sheeting having a thickness of from 0À05 to 0À5 inches, a load-bearing capacity of 0À75 to 5 1bs./sq. inch at 25% compressions 1À75 to 15 lbs./sq. inch at 50% compression and of 10 to 100 lbs./sq. inch. at 75% compression and having a density of 2 to 10 lbs./cubic foot, and a backing layer which may be a polyvinyl chloride homopolymer or copolymer, woven hessian fabric, woven hessian with needled jute fibres or a flooring felt impregnated with a resinous binder such as asphalt, polyvinyl acetate or a synthetic rubber. Where a polyvinyl chloride copolymer is used as the backing layer, a vinyl chloride/vinyl acetate or vinyl chloride/vinylidene chloride copolymer is preferred. The foam and the backing layer are conveniently bonded using a polyurethane or polyvinyl acetate adhesive or by flame-sticking.
Patent GB-1427508-A (GB)
Title: Pyrido pyrimidine compounds
IPC: C07D471/04
Filed: 1971-10-12
Abstract: 1427508 Pyrido-pyrimidines H C S WOOD and T PATERSON 12 Jan 1973 [12 Oct 1971] 47490/71 Heading C2C The invention comprises a pyrido[2,3-d]- pyrimidine of the formula wherein the dotted line indicates the presence of two additional bonds in the where the N(3) atom carrying a hydrogen atom substituent, and Q<SP>1</SP> and Q<SP>2</SP> being the same or different and selected from oxygen and sulphur atoms and the imino group, or only one of Q<SP>1</SP> and Q<SP>2</SP> is as defined above, the other being a halogen atom, a hydroxyl group, an optionally substituted amino, or thiol or alkylthio group; R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are the same or different and are each a hydrogen atom or an alkyl group containing 1 to 4 carbon atoms and R<SP>1</SP> represents a D-ribityl group, or a salt thereof. They may be prepared by a method comprising reacting a compound of the formula with a compound of formula or sodium salt or acetal or ketal thereof wherein Q<SP>1</SP>, Q<SP>2</SP>, R<SP>2</SP> and R<SP>4</SP> are as defined above, R<SP>31</SP> can be the R<SP>3</SP> group and Z represents the group NHR<SP>1</SP>, R<SP>1</SP> being as defined above, in which case either: (i) X is a hydrogen or halogen atom, or alkoxy, acetyloxy, hydroxyl, alkylthio, thiol or optionallly substituted amino group; or (ii) X taken together with R<SP>31</SP> represents an additional bond when R<SP>3</SP> in the compound (A) represents hydrogen; (b) when X is hydrogen; removing two superfluous labile hydrogen atoms from the intermediate product formed by treatment thereof with heat or acid; and (c) optionally converting said Q<SP>1</SP> and/or Q<SP>2</SP> group of the resulting product into a hydroxyl group or an oxygen atom by acid hydrolysis when Q<SP>1</SP> and/or Q<SP>2</SP> are a thiol or alkylthio group or a sulphur atom, or by acid or alkali hydrolysis when Q<SP>1</SP> and/or Q<SP>2</SP> are an imino or an amino group or a halogen atom. The products may be used as active agents in pharmaceutical compositions.