baber/WOPTO huggingface dataset:
Patent GB-1506142-A (GB)
Title: Cutting apparatus for surgical thread
IPC: A61L17/00
Filed: 1976-04-20
Abstract: 1506142 Cutting threads T AKIYAMA 20 April 1976 [17 Nov 1975] 44815/77 Divided out of 1506362 Heading B4B Apparatus for cutting a surgical thread comprises a holder 53 having a slot 55 to receive the thread, a pivotally mounted cutting member 58 co-operating with the holder and movable to cut a thread received therein, an actuating rod 46 for moving said cutting member and a trigger 49 for driving said actuating rod. The apparatus may be used for cutting the ligatures described in the parent Application (see Divisions D1- D2), said slot 55 having a key-hole shape, such that the projections (23), Fig. 10C (not shown), along the length of the ligature can pass through the round hole 56 but the ring-shaped member (25) at the end of the ligature cannot pass through the hole.
Patent GB-1093757-A (GB)
Title: A process for the preparation of a morpholine derivative
IPC: C07D413/14
Filed: 1965-10-22
Abstract: 5 - (N - Morpholinylmethyl) - 3 - (5 - nitrofurfurylidene - amino) - 2 - oxazolidone is prepared by dissolving 1-hydrazino-3-(N-morpholinyl) -2-propanol, which has previously been treated with an aldehyde or ketone to protect its hydrazine group, in an inert solvent, reacting it with ethyl chloroformate and then with 5-nitrofurfural to produce 1-(5-nitrofurfurylidene) - 2 - ethoxycarbonyl - 2 - (2 - hydroxy - 3 - morpholinorpropyl) -hydrazine hydrochloride, dissolving this compound in water and bringing the solution to a pH of from 7 to 10 at room temperature to effect ring closure.
Patent GB-1359332-A (GB)
Title: Data display devices
IPC: G02F1/1343
Filed: 1971-09-28
Abstract: 1359332 Matrix displays SUMLOCK ANITA ELECTRONICS Ltd 28 Sept 1972 [28 Sept 1971] 45087/71 Heading G5C [Also in Division H4] In a display device comprising a dynamic scattering liquid crystal layer between two substrates, a plurality of like parallel equidistant conductor lines is disposed on the surface of a single one of the substrates, the lines being connected alternately to 1st and 2nd common conductors which in use are connectible to opposite poles of a voltage source for rendering opaque the area occupied by the lines. A plurality of such areas may be provided in a single device, e.g. a seven bar matrix, Fig. 3 (not shown), a common connection being made to all the first conductors, and the 2nd conductors being selectively addressable. The display may be reflective or transmissive. Control circuitry comprises a dynamic register (25), Fig. 8 (not shown), buffer (26), gates (28) and decoder (30).
Patent GB-1392837-A (GB)
Title: Metal products and process of preparation
IPC: C22C1/10
Filed: 1972-09-29
Abstract: 1392837 Sintered dispersion metals or alloys GENERAL ELECTRIC CO 29 Sept 1972 [4 Oct 1971] 45191/72 HeadingC7D. Sintered dispersed metal or alloy bodies are formed by impregnating a porous metal body with a liquid solvent and then impregnating with a liquid solution of the dispersant additive to form a concentration gradient of the dispersant in the porous body. The impregnated body is then sintered. The porous body may be a green compact of W, Cr, Mo or W-Re, the solvent may be water or alcohol and the dispersant solution an aqueous solution of Th(NO 3 ) 4  4H 2 O which decomposes to ThO 2  on sintering.
Patent GB-1080317-A (GB)
Title: A dozer type earth-working machine
IPC: E02F3/76
Filed: 1964-11-06
Abstract: 1,080,317. Dozers. BOFORS A.B. Nov. 6, 1964 [Nov. 6, 1963], No. 45383/64. Heading E1F. The cylinder or each cylinder of a hydraulically actuated jack or jacks for vertically swinging a dozer blade-carrying yoke of a dozer is connected to the chassis of the dozer through a pivot pin extending through a bore in the upper end of the cylinder at right angles to the axis thereof and aligned bores in an arm which extends partway along the cylinder and which is provided with a pin allowing of pivotal mounting of the channel on the chassis of the dozer. This pin is disposed perpendicular to the axis of the first pivot and the cylinder axis at a position intermediate the ends of the cylinder. The arm is preferably a U section channel partially embracing the cylinder and a plate secured to the outer end of the piston rod and slidable over the channel provides for protection of the piston rod.
Patent GB-1127025-A (GB)
Title: Improvements in or relating to papermaking machines
IPC: D21F9/02
Filed: 1965-10-28
Abstract: 1,127,025. Paper-making apparatus. KIMBERLY-CLARK CORP. 28 Oct., 1965 [21 Dec., 1964], No. 45685/65. Addition to 1,030,900. Heading D2A. An embodiment of the parent specification in which a fibrous slurry is directed into a nip between two rolls 21, 29 to form a web on a felt 36 with the water being squeezed out of the web by a wire 20 passing at least for 90‹ around roll 21 is modified in that either the wire-web-felt sandwich is during its existence not bent from the curvature it assumes on passing around roll 21 or it extends only in a straight line tangential to roll 21. Wire 20 may separate from the web and felt 36 at press rolls 22, 55, or these press rolls may be omitted with the wire leaving the web and felt at roll 21 and with optionally a press roll pressing felt 36, the web, and either wire 20 or an extension of felt 56 against roll 21. Stock inlet 67, which comprises two parallel plates between which the stock flows, may be positioned vertically as shown, or horizontally with roll 29 positioned above roll 21.
Patent GB-1435900-A (GB)
Title: Method for the preparation of planographic printing plates
IPC: C07D235/28
Filed: 1972-10-04
Abstract: 1435900 Lithographic printing processes AGFA-GEVAERT 29 Aug 1973 [4 Oct 1972] 45792/72 Heading B6C A fountain solution for use with planographic printing plates comprises an aqueous fixer having a pH-value about 4À5 to about 7À2 and containing (1) an iron (III) ammonium salt of an aliphatic dicarboxylic acid, (2) a precipitating agent for silver ions, and (3) an organo nitrogen-containing compound containing a structural part corresponding to the tautomeric structure The iron salt may be iron (III) ammonium malonate and the compound may be a thione compound. The fixer also contains an aliphatio amino compound such as n-octylamine. The precipitating agent may be potassium iodide.
Patent GB-924290-A (GB)
Title: Hydraulic splitting machine for cutting slabs, blocks and pieces for mosaics
IPC: B28D1/22
Filed: 1961-12-27
Abstract: 924,290. Splitting hard material. J. KARFUS, and V. LANGNER. Dec. 27, 1961 [Dec. 27,1960], No. 46259/61. Class 124. A slab 3 of hard material is split by upper and lower sets of cutters 1, 2 and 6, 7, the set 1, 2 being moved to and from the slab by a low-pressure pump and obtaining the pressure for splitting the slab from a high pressure pump. The cutter 1 may be pivoted to cut a bevelled slab. In a modification each set of cutters forms a cross.
Patent GB-1036202-A (GB)
Title: Improvements in or relating to the manufacture of clutches
IPC: F16D13/71
Filed: 1963-05-07
Abstract: 1,036,202. Making clutches. BORGWARNER CORPORATION. May 7, 1963 [May 16, 1962], No. 46389/65. Divided out of 1,036,201. Heading B3A. A cover C for a friction clutch has mounting segments 37 (Figs. 2 and 7, not shown) formed in lugs 32 integral with a flange 22 by first inwardly deforming the plate adjacent each lug. The upper part of the deformed portions is then sheared away leaving an inclined tongue 41, Fig. 5 (not shown), which is struck downwardly into the plane of the lug in a stamping operation, Fig. 7, in which the mounting segment 37 is defined by slight downward deformation and a screw hole 36 is formed.
Patent GB-1279831-A (GB)
Title: Improvements in or relating to field effect transistors
IPC: H01L29/78
Filed: 1969-09-22
Abstract: 1279831 Semi-conductor devices NATIONAL SEMICONDUCTOR CORP 22 Sept 1969 [2 Oct 1968] 46481/69 Heading H1K An IGFET is isolated from other elements of an integrated circuit by the provision in the substrate of an anti-inversion ring 22 of enhanced conductivity. This ring has a terminal area 26 in contact with an adjacent high conductivity area 34 of the opposite conductivity type; these areas bear substrate connection 66 (which shorts the junction between them). Breakdown of the gate dielectric is avoided by the provision of a PN diode connected between gate and substrate. The diode is formed by the anti-inversion ring 22 and a touching high conductivity region 36 of opposite type; the gate electrode 70 is extended to make contact with the latter. The manufacture may involve the use of antimony as a slow-moving and relatively non-volatile dopant and may be applied to the production of either or both N-channel and P-channel transistors. The formation of a P-channel transistor is described. Here the ring 22 is first formed, by diffusion of antimony. The antimony moves little during the subsequent boron diffusion step which produces the source and drain region 30, 32 and other regions 34, 36. Three further masks are used to complete the manufacture. In the manufacture of an N- channel transistor, the same five masks are used, the order of use of the two first of these being transposed so that source and drain regions 30, 32 and the other regions 34, 36 may be formed by a first diffusion step involving antimony. A five-mask sequence may also be used to make both P-channel and N-channel transistors simultaneously on the same substrate; the starting substrate in this case contains both N and P areas in its working surface, and the first step of the sequence comprising the simultaneous formation of source and drain regions of the N-channel transistor and the anti-inversion ring of the P-channel transistor.
Patent GB-1161408-A (GB)
Title: Take-Off Director
Inventor: DOVE FRANK
IPC: G01P7/00
Filed: 1965-11-03
Abstract: 1,161,408. Aircraft instruments. SPERRY RAND Ltd. 20 Oct., 1966 [3 Nov., 1965], No. 46515/65. Addition to 1,071,882. Heading B7W. [Also in Division G1] An aircraft flight instrument having means for deriving and indicating the deviation from an optimum proportional relationship between the acceleration along a longitudinal axis of an aircraft and the pitch attitude, the optimum proportional relationship being predetermined for each of a number of flight phases through which an aircraft carrying the instrument passes, means being provided for detecting the flight phase through which the aircraft is passing, and adjusting the optimum proportional relationship to a value appropriate to said flight phase. According to the illustrated embodiment the optimum relationship is expressed by the equation f = b#, where f is the forward acceleration measured by an accelerometer in the aircraft, # is the pitch attitude, and b represents the optimum relationship, and changes with the flight phase. When f is negative b is 1.0, however, this phase represents an unintended flight phase. During the take-off phase, which is up to a height of 400 feet, b = 1À4. This is followed by a second phase of relatively level flight while the aircraft speed builds up to 250 knots, when b = 20. Above 400 feet and 250 knots is a third phase when b =1.0 giving maximum climb at constant velocity. Two circuits are shown for providing the above. Fig. 2, shows an A.C. circuit, wherein a voltage representing the aircraft height is supplied at 14, and a voltage representing the aircraft speed is supplied at 15. When the accelerometer signal/is in phase with the height representing voltage (i.e.f is negative) the bridge C is effectively an open circuit and the signal/is passed unattenuated to a summation device 34 (i.e. b = 1.0). When the height voltage at 14 is 180 degrees out of phase with the signal f, then current is passed from the bridge C to attenuate the signal f by an amount dependent on the value of the resistance R3 to give b = 1.4. Similarly the bridge D presents a short circuit to the signals f (when the bridge C is short circuited) until the speed builds up to 250 knots, to give an attenuation dependent on the value of R 2 , giving b = 20. Fig. 3 shows a D.C. circuit in which D.C. signals are supplied representing; the accelerometer signal f amplified in a D.C. amplifier 11, the height to a Zener diode on line 12, and airspeed to a Zener diode on line 13. The Zener diodes prevent the height and airspeed signals from being applied at below 400 feet and below 250 knots respectively. Below 400 feet and 250 knots the amplifier is arranged to have an amplification giving b = 1À4. Above 400 feet the positive height signal causes the amplifier to reduce the acceleration signal to zero giving a high value for b. Above 250 knots the negative airspeed signal cancels the positive height signal and b becomes 1.4 again.
Patent GB-964307-A (GB)
Title: Die casting method and apparatus
IPC: B22D19/00
Filed: 1962-12-11
Abstract: 964,307. Casting composite articles; cores. NATIONAL LEAD CO. Dec. 11, 1962 [Dec. 13, 1961], No. 46681/62. Heading B3F. [Also in Division F1] In a pressure die die-casting process an assembly of separable core parts is coated at least in part with a protective coating sufficiently thick to maintain itself during the casting operation and which will remain adhered to the casting after removal of the core. A collapsible core for an I.C.E. cylinder comprises a centre section 10 and side sections 14, 15, 16 which engage therewith by dowels 17. The sections are assembled and coated with a coating, e.g. of iron alloy deposited by a metallizing spray gun, and having a rough porous surface so that it will adhere to the casting. The coating may be made thicker at one end of the cylinder than at the other for reinforcing purposes, or it may be varied in composition from end to end to be more refractory in the combustion chamber and more retentive of oil in the lower end of the cylinder. The coating extends over the core projections which form the engine exhaust ports so that the walls of the ports are lined. The coating may be applied by dipping or coating and may be fired or cured to form a coating which will not be washed off during casting.
Patent GB-1090907-A (GB)
Title: Electrical control system for an industrial truck
Inventor: PALMER NORMAN
IPC: H02H7/08
Filed: 1964-11-17
Abstract: 1,090,907. Control of D.C. motors. EATON YALE & TOWNE Inc. Oct. 22, 1965 [Nov. 17, 1964], No. 46719/64. Heading H2J. An industrial truck is driven by an electric motor having armature 13 and field windings 16 associated with reversing contacts 18, 19, the motor being supplied from battery 10. When a first pulse is supplied by source 36, rectifier 25 conducts so that capacitor 24 is charged, the rectifier being held conductive by gate current through resistor 29. After a variable delay, a second pulse from source 35 switches on rectifiers 26, 27, to energize the motor and reverse the charge on capacitor 24. At the same time, rectifier 25 is switched off. After a further fixed delay, a third pulse from source 36 re-fires the rectifier 25 to again reverse the charge on capacitor 24 and turn off the rectifiers 26. The cycle of operations is thus repeated, the motor current being maintained through diodes 21, 31. The speed of the motor is controlled by the frequency of the cycles, which is determined by the position of a throttle pedal. A fail-safe arrangement is provided, the effectiveness of which is tested before the truck is started. Capacitor 66 is charged and then partially discharged by the first and second pulses in each cycle. If the first pulse of the next cycle fails to arrive, the capacitor continues to discharge so that transistor 47 conducts to switch on transistor 56. Relay 57 is energized to break the circuit to contactor coils 81, 82, so that the truck cannot be restarted until switch 58 is opened by releasing the pedal. When starting the truck, arm 79 selects forward or reverse operation, a warning lamp 77 being illuminated. Relay 57 is energized provided that the safety circuit is operative. Relay 74 is then energized, whereupon the warning lamp is extinguished. Release of the pedal de-energizes the relay 57, so that the contactor coil is energized when the pedal is again depressed. The capacitor 66 now charges whereby the relay 57 is now operated only in the event of a fault. An inhibiting circuit for preventing operation of the safety circuit until the contactors are closed comprises Zener diode 71 which breaks down to switch on transistor 69 whereby energization of relay 57 is prevented. The inhibiting circuit is ineffective during testing of the safety circuit. Rectifier 86 prevents damage if the pedal is depressed before the direction of travel is selected by means of the arm 79.
Patent GB-1236929-A (GB)
Title: Improvements in or relating to effluent treatment
Inventor: FURNESS CHRISTOPHER DAVID
IPC: C02F1/465
Filed: 1967-10-13
Abstract: 1,236,929. Electrolytic separation of oil. SIMON - CARVES Ltd. Oct.7, 1968 [Oct.13, 1967], No.46791/67. Heading C7B. The oil content of an oily aqueous effluent is reduced by applying a P.D. across the effluent, whereby the electrolytic effect separates oil from water, and removing the oil. The cathode C.D. is preferably between À0004 and À007 amp/sq in (À0062 and À11 amp/sq dm). The electrode assembly for immersion in the effluent comprises a plurality of grid-structure electrodes 32, 34, e.g. of expanded metal, arranged as trays of alternating polarity in a pack. A baffle 36 may be provided to bring the incoming effluent at 38 to the bottom of the pack.
Patent GB-1462612-A (GB)
Title: Hydraulic  control systems
IPC: E01F13/06
Filed: 1972-10-11
Abstract: 1462612 Valves SMITHS INDUSTRIES Ltd 11 Jan 1974 [11 Oct 1972] 46800/72 Heading F2V [Also in Division E2] A valve 26 which normally closes an hydraulic fluid path 79, 80 is opened by hydraulic pressure communicating with a chamber 31, a piston 30 disposed within the chamber and having a central projection 70 being bodily moved by the pressure to unseat a valve member 62. If it is required to retain the valve 26 permanently open a metal block 76 is reversed so that its surface 83 contacts a plunger 73 and retains it in a position in which the valve member 62 is unseated.
Patent GB-1247745-A (GB)
Title: A combined pair of sterile vessels
Inventor: TAKEHARA HIRAKI
IPC: B29C49/04
Filed: 1969-09-25
Abstract: 1,247,745. Blow-moulding. H. TAKEHARA. 25 Sept., 1969 [25 Sept., 1968; 26 Sept., 1968 (2); 27 Dec., 1968], No. 47361/69. Heading B5A. [Also in Division B8] A single vessel 112, obtained by separating a hermetically sealed pair of vessels 79 at a common weakened mouth portion 80, is moulded into a bottle of larger shape in a two-part cylindrical mould 102, 102 which is adapted to be intermittently rotated about a horizontal axis on a base 101 and has a mouth 105 which receives a holder 107 with the vessel 112 supported thereon. The vessel 112 is heated by means not shown and, when the opening 105 is closed by a cover 106 on the holder 107, air is supplied to a conduit 109 and discharged, through holes 108, into the interior of the vessel 112 to expand it into the shape of the interior 103 of the mould. Air from within the mould is discharged through a vent 110. In a modification, Fig. 13, not shown, a vessel (320) with a thickened mouth portion (321) is produced in a split mould (315) hot air being discharged into the vessel to soften it, and the rim of the vessel being flattened, to produce the thickened mouth (321), against an edge (316) of the mould as a metal cover (319) is closed against the opening of the mould. The preform pair of vessels 79 is formed by extrusion and vacuum forming.
Patent GB-1534558-A (GB)
Title: Carriage type drafting machines
IPC: B43L13/04
Filed: 1976-11-16
Abstract: 1534558 Drafting machines FRANZ KUHLMANN KG PRAZISIONSMECHANIK UND MASCHINENBAU 16 Nov 1976 [17 Nov 1975] 47708/76 Heading G1X In a drafting machine of the kind having an x-carriage 3 movable on wheels 16a, 16b guided in a track at the edge of a drawing board 1, and a y-carriage 5 bearing a drafting head 10 and movable in an orthogonal direction along a rail 4 secured at one end to an angle bracket 6 pivotally attached at 12 to the carriage 3, an adjustable forcecompensating element is provided for compensating (at any inclination of the board 1) for tilting movements caused by the weight of the rail 4, carriage 5 and head 10 on the wheels 16a, 16b. As shown the element is a thrust pin 21 bearing on a part 23 of the carriage 3 and mounted in a bore in the angle bracket 6, adjustment of knob 20 varying the force applied to the thrust pin 21 by a compression spring 17. Alternatively the element may comprise a permanent magnet whose position is adjustable. The rail 4 is supported at its other end by a roller (24) running on the face of the board Fig. 2 (not shown).
Patent GB-1512138-A (GB)
Title: Balanced synchronous detector circuits
IPC: H03C1/54
Filed: 1976-11-16
Abstract: 1512138 Synchronous detectors; stereo decoders SONY CORP 16 Nov 1976 [18 Nov 1975] 47714/76 Headings H3A and H4R A balanced synchronous detector suitable for use in a stereo decoder comprises a first double balanced modulator DA-1 to DA-5 providing at o'p' an output dependent on the phase difference between signals applied at AB and HI, a second double-balanced modulator including a portion DA-2, DA-3 of the first modulator and a section DA-6; DA-7 receiving at FG a frequency multiple of the signal at H, I and providing at LM an output proportional to the amplitude of the signal at HI. The received signal may be the pilot signal of a composite stereo signal and the amplitude dependent output exceeding a threshold lights up a lamp (Fig. 1, not shown). The phase dependent output controls a phase locked oscillator from which the two harmonically related signals for the synchronous detector are derived.
Patent GB-1533140-A (GB)
Title: Monitor actuating device and reusable fastener therefor
IPC: G08B21/00
Filed: 1976-11-17
Abstract: 1533140 Clips EATON CORP 17 Nov 1976 [2 Dec 1975] 47931/76 Heading E2B A device 14 for engaging and retaining a pin shaft comprises a hollow dome 36 containing a spring steel clip 34 which may rotate in its own plane but is otherwise fixed. Apertured tongue 44 projects from the clip so that aperture 46 is not aligned completely with passage 50 in a portion 38 attached to dome 36 so that it holds the shaft 18 of a pin 12. Cam surfaces 58 are provided so that arms 74 of a tool may engage them to push body 54 inwards to force tongue 44 into line with the base 42 of clip 34 and so align aperture 46 with bore 50 so that pin 12 may be released.
Patent GB-1337659-A (GB)
Title: Production of flameproof polyurethane foam resins
IPC: C08G18/72
Filed: 1971-10-19
Abstract: 1337659 Polyurethane foams BAYER AG 19 Oct 1971 [23 Oct 1970] 48566/71 Addition to 1267011 Heading C3R Polyurethane foams are prepared by reacting in the presence of ablowing agent (a) a polyether which contains at least two reactive hydrogen atoms and has a M.W. of 1500 to 10,000 and in which at least 10% of the hydroxyl groups are primary hydroxyl groups, (b) a polyisocyanate solution which is a 1 to 80% solution by weight of a polyisocyanate which comprises at least one isocyanurate ring dissolved in a polyisocyanate which is free from isocyanurate groups but which comprises urethane groups. The polyisocyanate which comprises isocyanurate groups may also comprise urethane groups and the polyisocyanate solution may also comprise one or more polyisocyanates which are free from both isocyanurate and urethane groups. In a typical example a foam was produced from a mixture of a trimethylolpropane based polypropylene glycol which is tipped with ethylene oxide, triethylene diamine, water and an isocyanate mixture consisting of a polymeric tolylene-2,4- diisocyanate and a polyisocyanate containing urethane groups prepared by reacting 65/35 tolylene diisocyanate with a mixture of trimethylolpropane and butane-1,3-diol, removing the unreacted diisocyanate by distillation and dissolving the product in 80/20 tolylene diisocyanate. The foams may be used as upholstery material, mattresses, packaging material, shock absorbing motor car parts, foils for backing, high frequency welding and as insulating materials.