baber/WOPTO huggingface dataset:
Patent GB-1376411-A (GB)
Title: Brake
IPC: H02K7/12
Filed: 1972-10-19
Abstract: 1376411 Cone brakes; disc brakes; wear adjustment DEMAG AG 19 Oct 1972 [20 Oct 1971] 48150/72 Heading F2E The shaft 3 of an electric motor has a rotary brake component 4 attached thereto which bears against a non-rotary brake component 7 through (a) friction lining(s) 6 to brake the shaft 3 when the supply of current to the motor windings is terminated, the component 4 being axially adjustable to compensate for wear of the friction lining(s) 6 by means of an adjusting port 16 having screw-threaded interconnection 13 with the non-rotary brake component 7, and the adjusting part 16 being rotatably entrained by the rotary component 4 to produce such adjustment upon a predetermined amount of wear of the friction lining(s) 6. In the embodiments illustrated the two brake components 4, 7 have complementary frustoconical surfaces one or both of which have lining(s) 6 attached thereto, although annular surfaces could be used. A spring 5 acting on the rotor 2 of the motor is used to move shaft 3 and component 4 rightwards, when current is cut-off, to cause brake actuation. The brake component 7 is slidable axially by the cooperation of its splined peripheral surface 8 and the grooved inner surface (9) of a casing 10 but movement of component 7 towards component 4 is resisted by a spring 11. In the embodiment of Fig. 1, the part 16 has a friction lining 19 contacted by the component 4 when the wear on lining(s) 6 exceeds the predetermined amount to rotate part 16 on thrust bearings 18 and move component 7 leftwards to adjust for wear. In the embodiment of Figs. 3, 4 (not shown), parts 16 and 7 provide a cavity for a pawl and ratchet mechanism which prevents component 7 being moved to the right when the shaft is rotated in the reverse direction. The mechanism comprises pawls (e.g. eight), in the form of leaf springs (17) screwed into part 16 and component 7 is shaped to provide ratchet teeth having stop faces (7a) and curved walls (7b). In reverse rotation friction lining 19 acts merely as an auxiliary brake lining. In the embodiment of Figs. 5, 6 part 16 is of two piece construction the inner piece 14 being connected to outer piece 16 by co-operating screw threads 15 of opposite hand to threads 13. Pawl and ratchet mechanisms of reverse configuration are provided between parts 7, 16 and between parts 14, 16. This arrangement allows wear adjustment whatever the direction of rotation of shaft 3. Overrunning clutches may be used as rotation stops and as the adjusting part. The adjusting part may be screw-threaded to a member which acts on component 7, possibly indirectly through a linkage or through springs. The friction lining 19 may in fact be connected to either or both of components 4, 16.
Patent GB-1404789-A (GB)
Title: Anti-skid device for wheeled vehicles
IPC: B60B15/26
Filed: 1972-10-19
Abstract: 1404789 Anti-skid device for vehicle wheels BARRY SA 19 Oct 1972 [25 Oct 1971] 48184/72 Heading B7C An anti-skid device attachable to a vehicle, e.g. a car, wheel comprises a support 1, a plurality of arms 11 pivotally connected to the support, and a plurality of road gripping elements 10 each pivotally mounted on a respective arm or arms. Each assembly of a gripping element and its arm or arms has an associated spring attached to the support and the assembly to provide an over centre arrangement so that the assembly is held by the spring in both the operative and rest positions. In the operative position surface 17 of the element contacts a stop 21 and in the rest or inoperative position the surface 17 engages a surface 18 on the support. The tyre engaging end 22 of each gripping element is formed as an oval ring provided with ground engaging spikes 24 and tyre tread engaging spikes 25. The support 1 is of steel and is flexible to permit variation of the axial distance between the two planes containing edges 9 and 8 respectively so that the device may be attached to wheels of different shapes. The arms 11 are each preferably of elastomer, e.g. rubber moulded around a metallic reinforcing core, and the gripping elements are of steel. As illustrated, the support 1 is annular and each gripping member 10 is pivoted on a single arm 11. However, the support may be starshaped instead of annular, or may be connected by more than one arm to each element 10 the support, e.g. two arms forming with the element 10 and the support a parallelogram linkage. The arms and/or the elements may be provided with several pivot pin receiving holes so as to permit adjustment of the device for tyred wheels of different diameters. A chain interconnecting the gripping elements and stretched in use over the tread may be provided.
Patent GB-1209178-A (GB)
Title: Improvements in and relating to die casting
IPC: B22C9/06
Filed: 1967-10-24
Abstract: 1,209,178. Casting apparatus. MALLORY METALLURGICAL PRODUCTS Ltd. 24 Oct., 1967 [27 Oct., 1966], No. 48297/67. Heading B3F. [Also in Division C7] At least two blocks 11, 12 form a die-casting cavity 15 in which at least the casting surface is a tungsten base alloy (at least 50%, e.g. 90-99% tungsten) containing iron and nickel (see Division C7). The blocks may be formed, or may have a coating formed, of the alloy as a sintered powder and heat-treated to increase its ductility. A brass (60 Cu, 40 Zn) is injected at 955‹ C. at a pressure of 18000 p.s.i. into the die maintained at 260‹ C. by a gas heater. After each cast the cavity is cleaned by air containing graphite or oil or other hydrocarbon. The carbonaceous film remaining facilitated release of the brass casting.
Patent GB-1510469-A (GB)
Title: Cable for collecting electrostatic charges
IPC: H01B13/00
Filed: 1975-08-11
Abstract: 1510469 Reducing fire risk in tanks BRIDON Ltd 11 Aug 1975 [8 Nov 1974] 48392/74 Heading A5A [Also in Division B3] An electrically conductive cable 1 has a plurality of electrically conductive spines projecting from the cable and spaced along it. The cable is intended for laying in a storage vessel for imflammable liquids, etc., for collecting electrostatic charges, the cable being at earth potential. A method of and apparatus for making it are described (see Division B3).
Patent GB-1211828-A (GB)
Title: Document handling apparatus
IPC: B65H7/20
Filed: 1969-10-02
Abstract: 1,211,828. Feeding sheets. INTERNATIONAL BUSINESS MACHINES CORP. 2 Oct., 1969 [25 Oct., 19681, No. 48404/69. Heading B8R. A document handling apparatus is provided with a mechanism for selectively lowering documents, stacked in a hopper, to engage a device effecting sequential feeding of documents from the hopper. As shown, a bed-plate 12 and a latch frame 14 are secured to a shaft 11 to form a unitary assembly which is biased by a spring 30 into a first position where support tabs 55 hold documents, e.g. cards, stacked in a hopper clear of feed rollers (53) mounted between the tabs (Fig. 2, not shown). One arm of a bell-crank lever 22 pivoted on the frame 14 oscillates towards and away from the core 18 of an electromagnet mounted on the frame 14, being driven by a mechanism including a cam 39 and a shaft 40 carrying an emitter disc 42 co-operating with pick-ups 44 and 45. In operation, when a feed command is issued the passage of emitter 42 past the pick-up 44 causes the electromagnet to be energized, whereby frame 14 and arm 22 are locked together and pivot as a unit about shaft 11 causing the tabs 55 to pivot downwardly, exposing the lowermost card in the hopper to the feed rollers. The electromagnet is de-energized when the shaft 40 has rotated to the position to bring the emitter 42 into co-operation with the pick-up 45; the arm 22 is then freed for independent movement and the spring 33 restores frame 14 to its first position. Thus, during each feed cycle the card stack is lowered into and out of engagement with the feed device, a joggling action of the cards being provided by the movement of the bed-plate 12 which is provided with an upstanding projection 65 engaging the cards.
Patent GB-1270117-A (GB)
Title: Carriage or trolley for travel along an upright wall of magnetisable material
Inventor: TIBBLING KURT
IPC: B63B59/10
Filed: 1969-10-03
Abstract: 1,270,117. Carriage for working on ship's hull; motor vehicles. ASPLUNDPATENTER A.B. 3 Oct., 1969, No. 48749/69. Headings B7H and B7M. A self-powered carriage or trolley for running on an upright wall of magnetizable material, e.g. a ship's hull, and for carrying materials, people or equipment for performing cleaning, painting or welding operations, comprises a frame 10 supporting annular magnets 12 each surrounding a wheel 22 having a resilient tyre for engaging the wall surface, the direction of movement being controlled by rotating the wheel assemblies, e.g. through a range of 120 degrees, by motors 36 with pinions engaging teeth 40 on the wheel carriers 28. Each wheel incorporates a driving motor. Each magnet core 14 has an excitation winding 16, the current to which may be controlled to maintain a constant tractive force. In Fig. 3 (not shown), steel brushes on the inner and outer peripheries of the magnets bridge the air gap to reduce losses due to the air gap, and facilitate movement over uneven surfaces. The frame alternatively may have four wheel assemblies. The carriage may be remote-controlled or automatically guided.
Patent GB-1224405-A (GB)
Title: Valve means for converting super-heated high pressure steam into steam at lower pressure and temperature
IPC: F22G5/12
Filed: 1969-10-06
Abstract: 1,224,405. Desuperheating steam by direct contact. KALLE - REGULATORER A.B. 6 Oct., 1969 [29 Nov., 1968], No. 49014/69. Heading F4K. [Also in Division F2] Valve apparatus for converting superheated high-pressure steam into steam at lower temperature and pressure by contact with water, consists of a steam valve housing 4 with inlet 5 and outlet 6, and containing a valve member 12, 15 co-operating with a seat 16. Fixed to the steam valve housing is a water valve housing 8 having a water inlet 24. A second valve member 22, 22<SP>1</SP> controls the supply of water to above the first valve member, whence it flows through passages 17 to the downstream side of the first valve member. An operating stem 13 of the steam valve extends concentrically through an operating stem 18 of the water valve. The water valve is loaded by spring 32 axially in the closing direction relative to the steam valve and is arranged to close just before the steam valve closes. As shown, the stem 13 is rigidly connected through plate 25, rod 26, 27 and lever. 40 to a piston and cylinder actuator 42. The Belleville spring stack 32 is interposed between plate 25 and a plate 30 fixed to the stem 18. The compression of the stack may be adjustable.
Patent GB-1163980-A (GB)
Title: Improvements in Jig Boring and Milling Machines
Inventor: LIPP WILLI
IPC: B23Q3/157
Filed: 1967-11-01
Abstract: 1,163,980. Machine tool details. RHEINSTAHL HUTTENWERKE A.G. 1 Nov., 1967, No. 49707/67. Headings B3B, B3C and B3K. A jig boring and milling machine comprises a worktable 2 displaceable in the X and Y directions, a magazine 5 carrying tools 3, 4, mounted in the machine column 1, and an automatic tool changer 6. The edge 8 of the magazine is spaced a distance a from the spindle 7 which is a greater distance than the radius of the magazine. The changer 6 is two-armed and simultaneously conveys a tool 4 from the magazine and a tool 9 from spindle 7. The magazine projects at the side 10 to facilitate interchanging of the tools, and the column is open at 11 and provides a chip, and a coolant container 12, 13. The guideways 15 for the table have coverplates 14. The tool changer removes the tools, moves downwardly to the broken line position of Fig. 2, is rotated through 180 degrees, and then lifted to introduce the tools into the magazine 5 and spindle 7.
Patent GB-1064019-A (GB)
Title: Process for preparing diarylketones
IPC: C07C51/275
Filed: 1965-11-24
Abstract: A process for the preparation of a diarylketone from the corresponding 1,1-diarylalkane is characterized by oxidizing said 1,1-diarylalkane with an aqueous solution containing nitric acid to obtain a reaction mixture containing an organic and an aqueous phase, separating said organic from said aqueous phase, further subjecting said organic phase to oxidation with nitric acid, to obtain a reaction mixture containing the desired diarylketone and an aqueous phase and thereafter separating the diarylketone from this aqueous phase. By "nitric acid" is meant any of the oxides NO, NO2, N2O4, N2O5 or N2O3 when made into aqueous solutions.  The 1,1-diarylalkane may be represented by the general formula <FORM:1064019/C2/1> wherein R and R1 are aryl radicals containing one or more rings, e.g. phenyl, biphenyl, naphthyl, phenanthryl, anthryl, indyl, dihydronaphthyl or cyclohexylnaphthyl.  These radicals may carry up to five nuclear substituents as defined by R2, where R2 is primary, secondary or tertiary alkyl or is F, Cl, Br, I, NO2, SO3H, COOH, COOR (where R is alkyl), NH2 or OH.  Many specific examples of such alkanes are given and include 1-(2-methyl, 4-chlorophenyl),1 - (2 - ethylphenyl)octane, 1 - (4-methyl - 2 - nitrophenyl),1 - (2 - methyl, 4 - isopropylphenyl)ethane, 1 - (2 - propyl, 3 - carboxynaphthyl),1 - (4 - butylphenyl)hexane, 1-(2 - propyl, 3 - aminophenyl),1 - (4 - methyl - 2-sulphophenyl)ethane, 1,1 - bis - (4 - methylphenyl)ethane and 1,1-bis-(3,4-dimethylphenyl)ethane. In the case of compounds containing nuclear-substituted alkyl groups on the aryl radicals the product will be a ketone carboxylic acid.  The first oxidation is suitably conducted with 1-70% (by weight), aqueous HNO3 at a temperature between 80-300 DEG  C., and a pressure between 0-70 kg./cm.2 gauge for 1 minute to 48 hours.  The reacting-weight ratio of alkane to acid can vary between 100 : 1 to 1 : 100.  The second oxidation is suitably conducted with 5-100% aqueous HNO3, at a temperature between 110-350 DEG  C., and a pressure of 7-70 kg./cm.2 gauge, for a time in excess of ten minutes.  The weight ratio of the reactants can be from 3 : 1 to 100 : 1 of HNO3 to organic phase.  In a preferred embodiment, the aqueous acid remaining from the second oxidation is cycled back to the first oxidation step for further reaction.  The desired diarylketone product is separated by conventional means and may be washed with a solvent to remove impurities.  Trimellitic acid is stated to be among by-products of the reaction. Specific examples of ketones that may be prepared in this way are: benzophenone, benzophenone - 4 - carboxylic acid, 2 - chlorobenzophenone - 41 - carboxylic acid, 3,31 - dinitrobenzophenone, 4 - sulpho - benzophenone, dinaphthylketone, tolyl anthryl ketone, 2-methyl, 41 - carboxybenzophenone, benzophenone - 4,41 - dicarboxylic acid, and benzophenone-3,4,31,41-tetracarboxylic acid.
Patent GB-1161436-A (GB)
Title: Improvements in or relating to Gastrostomy Apparatus
IPC: A61F2/04
Filed: 1967-11-07
Abstract: 1,161,436. Gastrostomy device. CHIRANA ZAVODY ZDRAVOTNICKE TECHNIKY, OBOROVY PODNIK ODSTEPNY ZAVOD BRNO. 7 Nov., 1967 [29 Nov., 1966], No. 50478/67. Heading A5R. A gastrostomy device for fitting to the wall of the abdomen to allow for surgical feeding direct to the stomach comprises a body 1 of tubular shape providedat one end with means 5 whereby it may be retained in the abdomen and at its other end with a head portion. 7 including a flap valve, there being a stopper 4 of a. water-repellent non-toxic material engageable with the head portion. As shown, the device is formed with a nared-out end 6 which is covered with a net of a polyester material such that the stomach tissue may grow into the net. The rubber flap valve 2 is said to be tripartite and is held in the head 7of the device by a screw-threaded ring 3, the flap valve preventing re-gurgitation of food. The patient is fed by inserting a feeding tube into the head 7 of the device, a fitting on the feeding tube being said to contact the edges of the valve.
Patent GB-1041039-A (GB)
Title: An improved drawing instrument
IPC: B43L9/04
Filed: 1963-12-20
Abstract: 1,041,039. Drawing instruments. I. A. WIGLEY. Dec. 18, 1964 [Dec. 20, 19631, No. 50561/63. Heading B6P. A drawing compass comprises a holder for the drawing member 5 in the form of a slide 4 linearly slidable transversely of the point member 3 and adjusted by screw means operated by a rotatable member 13. Micrometer graduations are provided on the member 13 and an adjacent part of the body of the instrument. The slide 4 has a dovetail tongue engaging a corresponding groove in the body part 6 of the instrument, and is formed with square teeth 12 engaged by a two-start thread on the member 13. The point 3 may be spring- urged outwardly. The finger rod 7 and the member 13 may be made of nylon.
Patent GB-1327874-A (GB)
Title: Accoustic ceilings
IPC: E04B9/00
Filed: 1971-11-01
Abstract: 1327874 Acoustic ceiling panels DAEMPA AS 1 Nov 1971 [5 Nov 1970] 50739/71 Heading E1W An acoustic ceiling comprises a plastics sheet of approximately 10Á thickness glued onto the back face of a perforated sheet metal facing by adhesive applied in a dotted or striped pattern, and a layer of acoustic absorbent material placed on the plastic sheet. The metal facing may be in the form of an aluminium tray formed of sheet metal with a thickness of 0.3 to 0.6 mm and the absorbing material may be mineral wool slabs.
Patent GB-1165379-A (GB)
Title: Improvements in or relating to Nets
Inventor: MOXEY FREDERICK WALTER
IPC: B65D90/00
Filed: 1967-11-08
Abstract: 1,165,379. Nets. G. Q. PARACHUTE CO. Ltd. 20 Sept., 1968 [8 Nov., 1967], No. 50832/67. Heading D1K. A load carying net comprises a series of interconnected crossing members 11, 12 most of which have a loop or fastening 13, 14 at each end so that a larger net can be formed by attaching by the loops or fastenings the edges of two or more smaller nets. The casing members may be webbing, string, rope or other material and they may be overlapped and stitched together at their crossing points.
Patent GB-1390290-A (GB)
Title: Hydraulic motors and pumps and hydrostatic drive systems
IPC: F01B31/24
Filed: 1973-11-01
Abstract: 1390290 Reciprocating motors and pumps DEERE & CO 1 Nov 1973 [2 Nov 1972] 50850/73 Heading F1A [Also in Division F2]  In a motor or pump, e.g. for a vehicle auxiliary hydrostatic drive, comprising a rotary cylinder block 50 with pistons 56 engaging a swash-plate 26, radial grooves 58 in the valve plate-engaging face of the cylinder block function as a centrifugal pump to pressurize drive chamber 16 and move pistons 56 clear of swash-plate 26 when the cylinder block is driven above a predetermined speed, a pressure-relief valve 78 acting to connect chamber 16 to valve plate port 30 when a predetermined pressure is exceeded in chamber 16. Pumping grooves 58 communicate with a separate inlet port (66), Fig. 2 (not shown) via annular groove 60 passages 62 and annular groove 64. A control circuit is described for two motors in an auxiliary hydrostatic drive (see Division F2), control valves being provided for connecting the motors in series or parallel for forward or reverse drive.
Patent GB-1312328-A (GB)
Title: Water-cooled viscous coupling
IPC: F01P7/08
Filed: 1970-10-27
Abstract: 1312328 Hydraulic coupling EATON YALE & TOWNE Inc 27 Oct 1970 [19 Nov 1969] 50861/70 Heading F2C A viscous shear type fluid coupling for an engine cooling fan is cooled by supplying cooling liquid through a duct 18 to a chamber 16 in the coupling. Cooling water may be pumped through the duct 18 to the chamber 16 by a pump 54 of an engine cooling system. In Figs. 2 and 3 (not shown) a tube passes coaxially through the duct 18 to permit the escape of vaporized cooling medium from the chamber 16. The duct is surrounded by the cooling medium which condenses the vapour.
Patent GB-1325393-A (GB)
Title: Semiconductor arrangements
IPC: H01L23/04
Filed: 1971-11-03
Abstract: 1325393 Semi-conductor devices SIEMENS AG 3 Nov 1971 [20 Nov 1970] 51010/71 Heading H1K Several groups of double layer tracks 8 are formed on a polyimide foil substrate with copper layers 6 nearest the substrate and tin layers 7 on them. The thickness of the copper layers lies in the range 5-20 Ám and that of the tin layers in the range 4-8 Ám. A respective semi-conductor body 1 which contains one or more devices is bonded to each group of tracks, each contact bump 2 on the body 1 being soft-soldered to a respective track 8. Bonding is effected by a pulse-heated vacuum chuck (Fig. 2, not shown) which may be adjusted in a plane parallel to the substrate. Each body 1 is connected via the group of tracks 8 bonded thereto to conductive carriers 10. For this purpose the polyimide substrate is divided to separate an individual body 1 and its leads and the unit thus formed is placed foil downwards on a die 36 and held there by a punch 35 while a punch 37, coaxial with the first, is used to bend the tracks 6 and foil 3 and to permit soldering of the tracks to the carriers. The foil substrate is then removed to leave the body and carriers connected by the bent (and mechanically elastic) tracks now in the form of leads. Several of these assemblies may be mounted on a common circuit board or individual assemblies may be provided with a plastics housing.
Patent GB-1134747-A (GB)
Title: An improved method of supporting a wall during the making of an opening therein
Inventor: COOPER WILLIAM HOWARD
IPC: E21D5/00
Filed: 1964-12-15
Abstract: 1,134,747. Shoring. PYNFORD Ltd. 15 Dec., 1965 [15 Dec., 1964], No. 51018/64. Heading E1E. A method of making an opening in a wall for the insertion of a lintel for a supporting frame consists of making a series of rows of ribs A<SP>1</SP>, A<SP>2</SP> on either side of the proposed opening and inserting a shoring device E, B, D thereacross for supporting the wall prior to the cutting of the opening. The shoring members may be made of metal, reinforced concrete or wood and utilized in association with jacks, wedges and tensioning cables as necessary. For various forms of shoring employed Figs. 3-9 (not shown) should be referred to.
Patent GB-1510139-A (GB)
Title: Stacked plate heat exchangers
IPC: F28F3/02
Filed: 1975-12-12
Abstract: 1510139 Plate heat exchangers BORGWARNER CORP 12 Dec 1975 [16 Jan 1975] 51019/75 Heading F4S In a heat exchanger comprising a stack of hollow plates 11 each with undulated plate surfaces provided, e.g. by elongate protrusions 18 angled with respect to the flow direction of an air stream passing between adjacent hollow plates, at least one plate element 21 is disposed between each adjacent pair of the hollow plates to turbulize the air stream. Preferably the turbulizing plates 21 are of heat conductive material or are bonded to the hollow plates to constitute additional heat exchange surfaces. The turbulizing plates may be plane (Fig. 5), louvred (Figs. 6, 7) perforated (Figs. 8 and 11), or as shown they may have tabs 25 punched out and bent at an angle to the plate surface and also oriented at an angle to the air stream flowing thereover. Or the plates may have hemispherical protrusions thereon, Figs. 9 and 10.
Patent GB-1423788-A (GB)
Title: Extrusion of thermoplastic material
IPC: B29C48/695
Filed: 1973-11-06
Abstract: 1423788 Regulating flow to tubular extrusion dies BONE CRAVENS Ltd 3 Oct 1974 [6 Nov 1973] 51390/73 Heading B5A Parisons 10, of molten P.V.C. material, are extruded for blow moulding from a plurality of die heads 2 which are each supplied from an extruder 1, via a duct 3, and the rate of extrusion from each head 2 is controlled by cooling each duct 3 externally to produce a frozen layer 13 of the material, extending towards the centre of the duct to define a Venturi shaped aperture through which the molten material flows under laminar flow conditions. A boundary layer of more highly viscous material is also formed between the molten and frozen material. The cooling of each duct 3 is effected by a surrounding water jacket 5, through which cooling water circulates at a rate which is variable by a needle valve 8. The water circulation is introduced after the commencement of extrusion, for the ducts from which extrusion is at a higher rate. In combination with the layer 13, the duct crosssection may be distorted to introduce a further flow restriction.