baber/WOPTO huggingface dataset:
Patent GB-1319069-A (GB)
Title: Automatic control system for reorientating a longwall face in a mine working
IPC: E21D23/00
Filed: 1970-08-06
Abstract: 1319069 Fluid logic and switching circuits BERGWERKSVERBAND G m b H 6 Aug 1970 [6 Aug 1969] 37925/70 Addition to 1258064 Heading F1P In on fluid logic controlled system for automatically reorientating a long wall mine face as claimed in Parent Specification 1258064, each measuring station has two measuring devices each associated with two in-line front and rear, fluid operated jacks H, P Fig. 1 respectively the piston travel of which jacks is split into increments and is effective to trigger binary positive forward or negative rearward pulses in the associated measuring device; the front jack H serving to advance the extraction machinery e.g. the conveyor to which it is articulated at F and the rear jack P serving to measure the advance of the forward jack and the algebraic sum of the measurements taken being passed to the logic processing system. Fig. 1 shows the conveyor having been advanced by hydraulic jack H held by a set prop S 2 . Fig. 2 shows prop S 2  released and jack H having been advanced towards the conveyor together with the rod of pneumatic jack P which latter is held by a set prop S 1 . During these jack movements the measurement device of entending jack P generates say five forward pulses whilst that of retracting jack H generates five rearward pulses plus two further rearward pulses due to the inadvertent slipping back of the conveyor. Fig.3 shows advance of jack P and its released prop S 1  during which movement the measuring devices of both jacks is reset to zero. The forward, rearward and reset pulses V, R, RS Fig. 4 are stored in erase-dominant stores 30, 20, 10. A timing pulse generator G delivers to AND gates 100, 200, 300 so that RS, R pulses are passed whilst V pulses are processed only during the time intervals between the pulses of the controlling trains and are thus isolated from R, RS pulses. The interlock between RS, R pulses is effected by lines V200, V100 at AND gates 100, 200. Thus the first pulse to arrive is the first one processed and gates 100, 200 are in each case opened during a timing pulse so that the reverse shift pulses arriving at the store register via OR- gate 40 are no longer than the timing pulse. Similarly the forward pulses arriving at the shift register are no longer than a time interval between control pulses. When a signal is delivered from gate 100, 200, or 300 then an associated store 11, 21, or 31 is set up which erases the associated store 10, 20 or 30. Erasing of stores 11, 21, 31 is effected by AND gates 110, 210 or 310 respectively when signal RS, R or V has disappeared and when the particular associated store has been erased. The signals retained in the stores are then converted into control signals fed to the jacks.
Patent GB-1216880-A (GB)
Title: Solid-state negative-resistance radio frequency apparatus
Inventor: COOK EDWARD JOSEPH
IPC: H01P7/06
Filed: 1968-08-08
Abstract: 1,216,880. Negative resistance apparatus. VARIAN ASSOCIATES. 8 Aug., 1968 [23 Aug., 1967], No. 37981/68. Heading H3T. A solid state negative resistance device such as an avalanche diode 8 (or a Gunn effect or L.S.A. device) is supported in a closed resonator 10 defined at least in part by portions 7, 37 of a post structure, a capacitive gap 11 between the portions being in series with the selfinductance of the post structure and coupling the resonator to a wave supporting structure 2. The wave supporting structure is a channel in an aluminium block 1 carrying the post structure, the channel being closed at one end by a wall (3, Fig. 2, not shown) constituting a shorting plane, and connected at the other end to a waveguide (not shown). The portion 7 of the post structure is a hollow aluminium sleeve and contains a copper plug 13 whose end 23 is surrounded by a conductive cap 21 and is secured to one end of the diode 8 whose other end is secured to the post portion (plunger) 37 which is insulated at 39. The assembly of the plug 13, diode 8 and plunger 37 is axially movable against a spring 66 by rotation of the plug 13, to vary the capacitive gap 11 thereby varying the centre frequency, and also the coupling to the wave-supporting structure (channel). Folded chokes are formed between plug end 23 and sleeve 7, and between plunger 37 and a sleeve 49 around it, whereby these parts are shorted to the block 1 at microwave frequency. The diode is mounted in an alumina ceramic body 33 on a copper stud 35, connections to a plug 55 being made via the spring 66 and the block 1. In a modification (Fig. 4, not shown), the sleeve 7 and plug 13 are replaced by a single post portion (81) having a hollow end (6) containing the diode (8) and defining the resonator with the plunger (37), tuning being effected by a tuning screw (83) in the portion (81), the upper part (85) of the screw being of a dielectric material. In a further modification of this (Fig. 5, not shown) a conductive stud (87) fixing the diode to the plunger (37) has its length (1) selected to give initial approximate tuning.
Patent GB-1099277-A (GB)
Title: Tracheal tube assembly
IPC: A61M16/04
Filed: 1965-09-06
Abstract: 1,099,277. Tracheotomy tube device. DOW CORNING CORPORATION. Sept. 6, 1965 [Sept. 11, 1964], No. 38009/65. Heading A5R. In a tracheal device comprising a flexible outer tube having predetermined curvature and adapted to be inserted into the trachea of the user through a throat incision, and a flexible inner tube having an external diameter slightly smalller than the internal diameter of the outer tube thereby to allow the inner tube to be freely insertable into the outer tube, both tubes are made of silicone rubber. To provide a positive interconnection therebetween, both the inner and outer tubes preferably include integral flexible interconnection means releasable by application of pressure in one or more predetermined directions. As illustrated in Figure 3, the inner surface of outer tube 11 includes annular groove 16 have a diameter larger than the inside diameter of the tube; as illustrated in Figure 2, the outer surface of inner tube 13 includes annular collar 17 of enlarged diameter adapted to mate with che groove when the inner tube is fully inserted into the outer tube, see Figure 6. At the end of the outer tube is generally oblong-shaped opening 18 which forms an inwardly extending flange adapted to hold the collar in the annular groove. At the end of the inner tube is transversely extending flange 14 which may be manually flexed to contract the collar to permit withdrawal of the inner tube from the outer tube. The end of the outer tube preferably includes transversely extending flange 12 adapted to bear against the skin around the throat incision. Insertion of the outer tube into the throat incision may be facilitated by a solid obturator having a diameter slightly smaller than the inner diameter of the outer tube and also being made of silicone rubber.
Patent GB-318073-A (GB)
Title: Improvements in the process of purifying metals used for castings
IPC: C22B9/10
Filed: 1928-12-28
Abstract: 318,073. Kirchhof, A. Dec. 28, 1928. Addition to 278,164. Dry processes of refining metals; alloys.-The process described in the parent Specification for treating molten aluminium with powdered animal shell is now applied to the treatment of other castable metals than aluminium and cast iron, including copper, nickel, silver, lead, tin, zinc, bismuth, and antimony, and alloys thereof.
Patent GB-918875-A (GB)
Title: Improvements in and relating to a collar for holding an annular bearing or sealing surface rotatively fast with a shaft
Inventor: WALKER GORDON RICHARD
IPC: F16D1/08
Filed: 1960-11-09
Abstract: 918,875. Securing collars on shafts. FILTON Ltd. Aug.25, 1961 [Nov. 9, 1960], No. 38424/60. Class 80 (2).. [Also in Group XXVI] A shaft collar, particularly for a liquid oxygen pump seal, consists of two axially spaced portions 27, 28, the former having a sealing face 15, and the latter formed with an axial slit 31 enabling it to be frictionally clamped to the shaft 10 by a transverse bolt 34 without causing distortion of the sealing portion 27. As shown the collar is formed from a single member 12 with a transverse slit 29 leaving an integral connecting portion located diametrically opposite the bolt 34, but the collar may be formed from two separate portions rigidly connected together over a short arc. The sealing face 15 may be in the form of a layer of chromium which bears against a ring at one end of a bellows sealing element (see Group XXVI).
Patent GB-837995-A (GB)
Title: Substituted phenoxyacetic amides
Filed: 1957-12-11
Abstract: Amides of eugenol glycollic acid and isoeugenol glycollic acid of the general formula <FORM:0837995/IV (b)/1> (wherein R is an allyl or propen-(1)-yl radical, R1 is an alkyl, alkenyl or cycloalkyl radical or a phenyl or benzyl radical optionally substituted by halogen atoms, or alkyl or alkoxy groups with 1 to 4 carbon atoms, and R2 is a hydrogen atom or an alkyl or alkenyl radical, and the alkyl radicals R1 and R2 can be bound to each other directly or by way of an oxygen atom) are made by reacting a halogen acetamide of the general formula <FORM:0837995/IV (b)/2> (wherein Hal is a halogen atom) with eugenol or isoeugenol in the presence of an acid-binding agent, or reacting such a halogen acetamide with a salt, particularly an alkali metal salt, of one of the aforesaid two phenols.
Patent GB-1092906-A (GB)
Title: Improvements in cassettes
Inventor: JARVIS BRIAN CLAUDE
IPC: G03B21/32
Filed: 1963-09-30
Abstract: 1,092,906. Record tape cassettes. MOVIECOL SALES Ltd. Sept. 22, 1964 [Sept. 30, 1963], No. 38501/63. Heading G5R. [Also in Division G2] A cassette for an endless tape comprises a base portion 2, a lid 3, and a circular plate 5 for supporting a tape coil 4, the plate 5 being rotatably mounted on the lid 3 and having an upstanding central core 7 upon which the tape is wound, and the lid 3 being provided with an entrance aperture 22 and an exit aperture 23 for the tape. The central core 7 includes a flat base part 8, an upstanding peripheral flange 9 and a central hollow boss 19 containing a bush 21. A pin 24 fixed to the lid 3 passes through the bush 21, the core 7 and the plate being retained in position by a washer 27 and a screw 26. An aperture 29 in the base 2 provides access to the plate 5 for manual rotation thereof to wind a tape into the empty cassette.
Patent GB-971829-A (GB)
Title: Machine for drying and cooling white sugar in counter-current
Inventor: KAMP HEINRICH
IPC: C13B40/00
Filed: 1962-10-11
Abstract: 971,829. Drying and cooling sugar. BUTTNER-WERKE A.G. Oct. 11, 1962, No. 38543/62. Headings F4G and F4U. Apparatus for drying and cooling white sugar in counter-current comprises a drying drum 1 having a cooling drum 2 of larger diameter fixedly mounted on the sugar outlet end for rotation therewith as a single drum, wherein an insulated hot air supply pipe 4 connecting an air heater 3 to the drying drum extends centrally through the cooling drum, an outlet housing 5 for the moist exhaust air is arranged at the sugar inlet end of the drying drum, an inlet housing 6 is arranged on the sugar outlet end of the cooling drum for cooling air and an outlet housing 7 for the cooling air is arranged at the sugar inlet end of the cooling drum. The outlet housings 5 and 7 are connected to a single fan 8.
Patent GB-874820-A (GB)
Title: Device on book-keeping machines or typewriters
IPC: B41J11/46
Filed: 1959-11-13
Abstract: 874,820. Typewriters &c. KIENZLE APPARATE G.m.b.H. Nov. 13, 1959 [Oct. 17, 1959], No. 38583/59. Class 100(4) A long-feed device for a typewriter or like book-keeping machine is controlled by markings on the strip 67 and the strip feeding means are disposed on the outgoing side of the platen and have no mechanical connection thereto. The zig-zag folded strip 67 is supplied from a container 36 consisting of two cage elements 37, 38, Fig. 3, mounted for axial displacement on shafts 39, 40, and led past a feeler 54 associated with a switch 53, Fig. 1. The strip is held down by two felt pads 57, 58 having recesses 57a for the feeler when it senses a hole 67a in the strip. From the sensing device, the strip 67 is drawn round the platen by feed rollers 5, 6, belt driven from an electric motor and delivered into container 41 consisting also of two cage elements mounted on transverse shafts 42, 43. In the initial threading of the strip 67 the pads 57, 58 are lifted by lever 64 and a front paper feed device comprising rollers 72 on forked supports 71 is moved by actuating lever 75, crank lever 78 from the position in Fig. 2 (not shown) to the position shown in Fig. 1. The feed rollers 5 and 6 are raised by arm 17 from a knob on the side plate 1. In operation the front platen rollers 72 and arm 75 are moved to open position, Fig. 1, either manually or from a machine control. This action also causes mechanism 85, 86, 89, 32, 30 and 29 to close switch contacts 28. Provided the main switch 75 is closed the motor 4 now drives the rollers 5, 6 until a hole 67a is sensed by the feeler 54a, whereupon a switch 53 closes; this operates a relay 27, contacts h 1  open, and the motor stops. Due to the small time-difference between the feeling action and the stopping of motor, the strip moves on a little so that the hole 67a has moved clear of feeler 54a, and contact 53 is open. Relay 27 is held by contact h 2  until contacts 27 are opened by the front platen roller actuating arm 75. Typing can now be carried out. Letter-spacing is effected by a pawl and ratchet wheel associated with the platen and the strip accumulates between the platen and the rollers 5, 6 and is taken up by the rollers when the arm 75 again is operated to open the front-feed rollers 72.
Patent GB-1534734-A (GB)
Title: Solvent mixtures
IPC: G03G5/00
Filed: 1977-09-16
Abstract: 1534734 Solvent mixture I S C CHEMICALS Ltd 16 Sept 1977 [17 Sept 1976] 38678/76 Heading C5D A solvent mixture which may be used for cleaning printed circuit boards, electrical equipment, and photo-copying machines, comprises as major component tricholotrifluoroethane, combined with, subject to certain provisos, at least two solvents selected from methanol, ethanol, isopropanol, acetone, and nitromethane, the proportions of the components being such that the mixture distils in a simple one-stage distillation to yield a non-flammable vapour and a non-flammable residue.
Patent GB-885744-A (GB)
Title: Improvements in cladding of aluminium or aluminium alloys with zinc or zinc alloys
Inventor: SINGLETON OGLE RIDOUT
IPC: B32B15/01
Filed: 1958-12-01
Abstract: Zinc-base alloys for cladding aluminium (see Group XXII) have the following composition:-  (a) Zn + 0,5% Cu  (b) Zn + 0,05% Ti  (c) Zn + 0,1% Ti  (d) Zn + 0,15% Ti  (e) Zn + 0,52% Mn  (f) Zn + 0,1% Ti + 0,76% Cu  (g) Zn + 10% Al + 1% Cu
Patent GB-1446192-A (GB)
Title: Optical apparatus
IPC: G03B35/24
Filed: 1973-08-17
Abstract: 1446192 Stereoscopic photography and viewers AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 17 Aug 1973 [18 Aug 1972] 38995/73 Heading G2A The Specification discloses an arrangement similar to that disclosed in Specification 1353777, with the additional feature of means within the photographic chamber for reversal of the recorded image.
Patent GB-1378088-A (GB)
Title: Extraction of microbial cellular proteins
IPC: A23J1/00
Filed: 1972-08-23
Abstract: 1378088 Recovering protein from microbial cells HITACHI Ltd 23 Aug 1972 [10 Sept 1971] 39295/72 Heading C6F Protein is extracted from micro-organism cells by heating an aqueous dispersion of the cells containing between 0À1 and 1 wt per cent of sodium hydroxide and/or potassium hydroxide such that the pH is adjusted to 9À5-13À5, at a temperature which is higher than the boiling point of the dispersion at one atmosphere absolute pressure, typically between 120 and 200C, neutralizing the resulting extract, separating cell residues therefrom by centrifuging, and recovering protein from the extract by iso-electric point precipitation. The Examples are directed to extracting protein from cells of Candida lipolytica, Candida sp., Torulopsis sp., Torula sp., Saccharomyces cerevisiae, Pseudomonas sp. and Bacillus sulstilis.
Patent GB-1208642-A (GB)
Title: Means for selectively indicating a pylon where insulator failure has occurred
IPC: G01R31/12
Filed: 1968-08-19
Abstract: 1,208,642. Protective arrangements. KRONPRINZ A.G. 19 Aug., 1968 [17 Aug., 1967], No. 39555/68. Heading H2K. In an overhead power transmission system having high voltage lines 5 carried by respective insulators 4 mounted on pylons 1, two induction coils 9, 10 are mounted on each pylon so as to be in the path of earth leakage current, e.g. resulting from a flash-over, and an indicator 12 is connected to the two coils. The pylons are interconnected by an earth conductor 6 and the induction coils 9, 10 are provided both below and above the cross arms 2, 3. These coils are mounted on iron rings 7, 8 surrounding the pylon or one leg of the pylon and are connected in series or in parallel with each other. The polarities of the voltages induced in the coils is such that when earth leakage currents J 1 , J 2  flow in opposite directions through the coils to the ground and the conductor 6, the indicator is operated by the sum of the voltages. If the fault is on an adjacent pylon then any earth leakage currents would flow from the earth conductor 6 to earth in the same direction through the coils and the voltages induced in the coils 9, 10 would cancel out. Each indicator 12 may have a flag which is released on the energization of an electromagnet or on the ignition of an explosive charge, Figs. 4 and 5 (not shown).
Patent GB-1280566-A (GB)
Title: Devices for monitoring precipitation of oxide from a liquid metal
IPC: G01N33/20
Filed: 1970-08-18
Abstract: 1280566 Measurement in liquid metals INTERATOM INTERNATIONAL ATOMREAKTORBAU GmbH 18 Aug 1970 [19 Aug 1969] 39779/70 Heading B1X In order to prevent plugging of passages in a device for monitoring precipitation of oxides from liquid metals an arrangement is made so that the oxide which tends to separate out on cooling can be washed clear by liquid metal and there is no cessation of throughflow in any channel. Thus in Fig. 2 liquid metal flows in the direction of the arrows its temperature measured by thermocouple 29. The flow of liquid through the apertured diaphragm 27 and the slots 30 is correlated by the eddy current flowmeter 28 and the plugging temperature can be adjusted. A more elaborate system is described in relation to Fig. 1 (not shown).
Patent GB-1170317-A (GB)
Title: Method of Making Carbon Commutators
Inventor: FORSTE WALTER
IPC: H01R39/04
Filed: 1967-08-31
Abstract: 1,170,317. Carbon commutators for electric machines. VEREINIGUNG VOLKSEIGENER BETRIEBE ELEKTROGERATE. 31 Aug., 1967, No. 39845/67. Heading H2A. A carbon commutator, for a subminiature electric machine, is made by a method which comprises fitting a support body I on an armature shaft, fitting a carbon jacket 3 around the body 1 in centred relation to the body, introducing winding wires 4 bared of insulation in axially-symmetrical relationship around a cavity between the body and jacket, filling the remainder of the cavity with electrically conductive curable resin 5, curing the resin, and slitting the jacket radially in relation to the body axis in order to form carbon segments. In the embodiment shown, the body has axial ribs 2 by which the jacket is centred and down to which the radial slits extend, but in the other embodiment, Fig. 2, the body has a radial end flange (6) for centring the jacket which is slit radially down to the resin 5.
Patent GB-1077201-A (GB)
Title: Improvements in or relating to magnetic tape-recorders
Inventor: WALKER RONALD
IPC: G11B15/62
Filed: 1963-10-10
Abstract: 1,077,201. Tape/head pressure pads. B.S.R. Ltd. Oct. 8, 1964 [Oct. 10, 19631, No. 39919/63. Heading G5R. A felt or like pad 19 is secured to a metal plate 20 integral with a stalk 21 and is advanced into contact with magnetic tape passing heads 12 or 13 by a compression spring 24 acting around the stalk against the plate 20 and against a member 14, also carrying a pinch-roller assembly (Fig. 1, not shown), the member 14 being movable, left and right as viewed, into an operative position and a retracted inoperative position allowing for tape threading. In a simple arrangement, Fig. 3, intended for erase head service, the stalk 21 is supported in a flanged, tubular bush 22 secured to the member 14. In an arrangement, Fig. 5, intended for record/playback service, but usable also for erase service, a U-form guide 23 allows the stalk 21 slight rocking movement in a vertical plane (dotted lines), but none in the horizontal. Rotation of the stalk in both arrangements is prevented by a tongue 26 extending from the plate 20 and locating in a slot in the member 14. Forward projection of the pads is limited by circlips 25 on the stalks 21 engaging the ends of the bush 22 or guide 23.
Patent GB-1248951-A (GB)
Title: Production of polyolefins using a poly(hydrocarbyl aluminium oxide) catalyst
Inventor: MILLER ADAM ROY
IPC: B01J8/24
Filed: 1968-08-21
Abstract: 1,248,951. Fluidized bed polymerization. UNION CARBIDE CORP. 21 Aug., 1968 [21 Aug., 1967 (2)], No. 39950/68. Heading C3P. Olefins are continuously polymerized in a fluidized bed by simultaneously (a) contacting a gaseous stream containing the monomer(s) with a polyhydrocarbyl aluminium oxide mixed with a transition metal compound in a polymerization zone comprising a fluidized bed of formed and forming polymer particles at a mass gas flow rate sufficient to maintain complete fluidization and at a temperature below the sintering temperature of the solid polymer particles, (b) withdrawing from said polymerization zone a small portion of the fluidized bed as discrete particles in suspension with a portion of the gaseous stream, (c) withdrawing the unreacted portion of said gaseous stream from the polymerization zone, (d) cooling said unreacted gaseous stream to remove heat of reaction, and (e) recycling the cooled gaseous stream to the polymerization zone below the base of the fluidized bed at a velocity sufficient to maintain fluidization. In the examples, ethylene or an ethylene-propylene mixture are polymerized using a polyisobutylaluminium oxide-chromium-2-ethylhexanoate catalyst on a silica or polyethylene support.
Patent GB-1516739-A (GB)
Title: Preparing sodium hydride and sodium aluminium dialkyl dihydrides
IPC: C07F5/06
Filed: 1975-09-30
Abstract: 1516739 Sodium hydride ETHYL CORP 30 Sept 1975 [4 Oct 1974 20 Nov 1974 (2)] 40025/75 Heading C1A [Also in Division C2] A process for preparing sodium hydride comprises reacting sodium with hydrogen at elevated pressure and at above 170‹C in the presence of a catalytic amount of a sodium aluminium dialkyl dihydride and usually in the presence of an aromatic hydrocarbon solvent such as toluene.
Patent GB-870122-A (GB)
Title: Selective operator apparatus
IPC: G05G9/047
Filed: 1957-12-30
Abstract: 870,122. Retractive switches; snap-action switches. SQUARE D CO. Dec. 30, 1957 [Dec. 31, 1956], No. 40238/57. Class 38 (5). A control member 23 is pivoted for movement to operate any one of a number, e.g. 4, of switch actuating toggles, which may be adjusted to operate with or without a snap-action. Each toggle has a lever 25 pivoted at 26 and having notches 45, 46, one of which is engaged by a pin 44 on a rod 40 carrying a spring 42, and pivoted at 43. If notch 45 is used, the toggle is retractive, but if 46 is used the toggle is movable with a snap-action across a dead centre. The levers 25 have lugs 47 which co-operate with actuating buttons 52 of switches 50. The member 23 is movable in 4 directions at right angles as allowed by a cruciform gate 58 and cooperates with arms 61 of levers 25 to actuate the toggles in one direction. If the toggles go over dead centre, they are restored by the engagement of a disc 39 with the lever 25. The levers can be locked against accidental operation by the co-operation of bars 34 and an enlarged part 36 carried by a plunger 30, which is slidable within the member 23 to permit operation. The member 23 is sealed into the casing by washers 13, 19 and the casing sealed to a panel by a washer 15.