baber/WOPTO huggingface dataset:
Patent GB-1064093-A (GB)
Title: Purification of boron
Inventor: SCHAEFER JAMES CLEMENT
IPC: C01B35/02
Filed: 1963-12-23
Abstract: In the separation of finely divided particles of elemental boron from finely divided particles of one or more impurity materials admixed therewith, a mixture of the boron particles, impurity particles, water and oleic acid is vigorously agitated, the boron particles are allowed to settle, and the boron particles are physically separated from the liquid medium which retains impurity particles.  The treatment may be repeated one or more times when there is present a large proportion of impurity, for example iron, carbon, boron carbide, iron carbide or mixtures thereof.  The volume of water in the mixture preferably is equal to or greater than the volume of the impure boron; the amount of oleic acid used preferably is between 0.005% and 0.05% by volume of the water present in the mixture. After separation, which may be by decantation and/or filtering, additional traces of impurity may be removed from the boron particles by washing, for example with hot water and then with ethyl alcohol or carbon tetrachloride, the organic liquid also removing water absorbed on the surface of the boron particles; the latter may then be vacuum dried.ALSO:In the separation of finely divided particles of elemental boron from finely divided particles of one or more impurity materials admixed therewith, a mixture of the boron particles, impurity particles, water and oleic acid is vigorously agitated, the boron particles are allowed to settle, and the boron particles are physically separated, for example by decantation and/or filtering, from the liquid medium which retains impurity particles.  The treatment may be repeated one or more times when there is present a large proportion of impurity, for example iron, carbon, boron carbide, iron carbide or mixtures thereof.  The volume of water in the mixture preferably is equal to or greater than the volume of the impure boron; the amount of oleic acid used preferably is between 0.005% and 0.05% by volume of the water present in the mixture. After separation, additional traces of impurity may be removed from the boron particles by washing, for example with hot water and then with ethyl alcohol or carbon tetrachloride, the organic liquid also removing water absorbed on the surface of the boron particles; the latter may then be vacuum dried.
Patent GB-1492217-A (GB)
Title: Combined stapler and hole punch
IPC: B26F1/36
Filed: 1975-12-11
Abstract: 1492217 Stapling apparatus; punching apparatus EIC INTERNATIONAL CORP 11 Dec 1975 50805/75 Headings B4C and B4B A stapler for desk use comprises in combination a stapling blade 41, a hole punch 5 and cooperating jaws 44, 341 which act as staple removal means. The stapling blade 41 is mounted on a slide button 42 which can be urged forwardly when the staple remover or punch is to be used in order that said blade does not contact a staple in the magazine. Paper removed by the punch is collected in the hollow base of the apparatus.
Patent GB-1399546-A (GB)
Title: Engine lubrication
IPC: F02B75/02
Filed: 1972-11-07
Abstract: 1399546 Lubricating I C engines ATELIERS DE LA MOTOBECANE 7 Nov 1972 [8 Nov 1971] 51235/72 Heading F1B [Also in Division F2] The lubrication system of an internal combustion engine has a pump which delivers oil at a rate proportional to the engine speed and a valve 36 which is opened against a resilient bias when the engine is running and which ensures that no oil is delivered when the engine speed is zero. The pump consists of two elements: a shaft 40 and a bore which are concentric and inter-engage with a small radial clearance, and which are arranged for relative rotation, one of elements being threaded and the other being smooth or threaded. The pump is constructed so that one of the elements is rotated by a part (e.g. the crankshaft of the engine) and the valve is located in a rotating portion of the engine, so that the valve is opened by centrifugal action when the engine is running.
Patent GB-1488894-A (GB)
Title: Sliding clasp fastener stringer with a continuous coupling element woven into a fabric tape
IPC: A44B19/56
Filed: 1974-12-02
Abstract: 1488894 Sliding clasp fasteners YOSHIDA KOGYO KK 2 Dec 1974 [4 Dec 1973] 52036/74 Heading E2S [Also in Division Dl] A stringer tape with a helical or zig-zag fastener element 11 surrounding a stuffer warp 17 is woven with two weft threads, the first weft loop 16 (Fig. 4) weaving with warp groups 12, 13 arranged under the fastener element, then being passed upwardly and then at 16 over the stuffer warp 17 and connecting leg 21 of the element to again enter the tape and to weave only with the warp group 13, thus binding the element to the tape; and the second weft loop 26 (Fig. 1) weaving with a third warp group 33 arranged over the fastener element, then being passed downwardly and then at 30 under the stuffer warp 17 and connecting leg 21 and out of the element to knit an internal selvedge 32 with its first inserted loop to bind the element to the upper tape. The first weft thread 16 is also knitted into a selvedge 24 and both wefts may be inserted simultaneously.
Patent GB-1312937-A (GB)
Title: Production of a plurality of continous strands
IPC: D01D10/04
Filed: 1970-11-03
Abstract: 1312937 Melt-spinning filaments BARMAG BARMER MASCHINENFABRIK AG 3 Nov 1970 [25 Nov 1969] 52133/70 Heading B5B Spinning apparatus comprises a multiorifice extrusion nozzle followed by a cooling device and means for collecting together all of the spun filaments, e.g. deflector bar 16, a plurality of after treatment units 24, 24<SP>1</SP>, 24<SP>11</SP> and 24<SP>111</SP> being arranged adjacent the spinning unit, each one being associated with a particular filament or filament bundle. As shown, an airduct 9 cools the filaments, which latter may be deflected back through the duct (Fig. 4, not shown) before further treatment. Treatment may comprise heating, stretching and winding. As shown, take off devices 19, 19<SP>1</SP>, 19<SP>11</SP> and 19<SP>111</SP> are arranged so that the filament paths from spinneret to wind-up are all equal in length. Heated plates 31 (&c.) assist drawing between rolls 22 (&c.), 25 (&c.), and a spin-finish may be applied at 13, 14, 15. Polyamides, polyesters and polyolefins may be spun.
Patent GB-1530359-A (GB)
Title: Vibration damper for a clutch
IPC: F16F15/123
Filed: 1976-12-14
Abstract: 1530359 Resilient couplings; clutch combinations; lock-up clutch control BORG WARNER CORP 14 Dec 1976 [19 Dec 1975] 52139/76 Headings F2U F2C and F2D A vibration damper 46 for a lock-up clutch 41 of a hydrodynamic torque converter 10 comprises a pair of plates 54, 66 which are resiliently connected to a hub flange 48 by springs 78 and provided with circumferentially-spaced mounting legs 73 (62) on their outer periphery having their mounting faces in a common plane. As shown, a smaller spring 83 is positioned within each larger spring 78 to enhance damping. The mounting legs 73 (62) are bolted alternately on to the clutch disc 42 which carries a friction facing 45 engageable with a driving casing 18 fast with the torque converter impeller 15 and a flywheel 11. When transmission is in neutral or an accelerating condition fluid pressure (oil) is delivered through a passage in the output shaft 12 and radial passages 25 to a chamber 86 to disengage the clutch disc 42 and permit drive through the torque converter. Upon the transmission shifting into high gear the fluid pressure in chamber 86 is dropped so that the clutch disc 42 engages under the full pressure in the torque converter and the drive is made directly from the flywheel 11 to the output shaft 12 through the casings 18, 13, clutch disc 42 and splined hub 29. Friction damping is effected between the hub flange 48 and plates 54, 66 by wavy washers 84.
Patent GB-1312134-A (GB)
Title: Hydrazino pyridazine derivatives
IPC: C07D237/20
Filed: 1970-09-04
Abstract: 1312134 Pharmaceutical compositions of 3-hydrazine pyridazine derivatives SANDOZ Ltd 4 Sept 1970 [15 Sept 1969] 42344/70 Heading A5B [Also in Division C2] Pharmaceutical compositions of the compound I: wherein R 1  and R 2  are independently hydrogen, C 1-6  alkyl, or C 2-5  alkenyl or an acid addition salt thereof and a diluent or carrier show anti-inflammatory and antihypertensive activity when administered orally or parenterally.
Patent GB-1146420-A (GB)
Title: Self-compensating servo system
Inventor: PETERSON BERTHUS
IPC: G05D3/14
Filed: 1967-11-17
Abstract: 1,146,420. Measuring voltage; servosystems. P.J. KIPP & ZONEN, N.V. Nov.17, 1967 [Nov.17, 1966], No.52387/67. Heading G1U. In a self-compensating servosystem a motor 8 at the output of a servo-amplifier 6 moves the wiper of a reference potentiometer 9 until, at balance, the voltage across a compensating resistor 3, derived from a reference voltage 10, equals that at the input terminals 1, 2, and a feedback resistor 13 is included, the strength of the feedback decreasing as the source resistance of the circuit connected to the input terminals increases, so that the response sensitivity of the servosystem is substantially independent of source resistance over a wide range of the latter. The measuring range of the servosystem is changed by switching in other compensating resistors 14, 15.
Patent GB-1487412-A (GB)
Title: Controlled feeding of livestock
IPC: A01K29/00
Filed: 1974-12-04
Abstract: 1487412 Chicken feeding DIAMOND INTERNATIONAL CORP 4 Dec 1974 [29 Aug 1974] 52418/74 Heading A1M A method of controlling the quantity of feed consumed by poultry including confining the poultry in an area, segregating them into two or more groups in separate cages each with its own feed receptacle, and dispensing accurately measured quantities of feed into each receptacle at regular intervals each day. This involves feeding between 4 and 20 times a day an amount of one ounce per fifteen inches of receptacle.
Patent GB-1312467-A (GB)
Title: Carburettors
IPC: F02M3/09
Filed: 1970-11-04
Abstract: 1312467 Spray carburetters MOTOR NARODNI PODNIK 4 Nov 1970 [17 Dec 1969] 52434/70 Heading F1B In a cold-starting arrangement, a valve piston 2 having a hole 5 of greater fuel flow cross-section than a calibrated hole 4 controls fuel flow to a rotary valve 9. Fuel flows through the hole 5 only until the piston 2 is moved against the spring bias by engine suction when fuel flows through the hole 4 only. The valve 9, which is operated manually or by a thermostat, controls fuel and air flow to the passage 10.
Patent GB-1163602-A (GB)
Title: Reciprocatig metering pumps for liquids.
Inventor: HRDINA JIRI
IPC: B01L3/02
Filed: 1966-11-24
Abstract: 1,163,602. Reciprocating pumps. CESKOSLOVENSKA AKADEMIE VED. Nov. 24, 1966 [Nov. 27, 1965], No.52652/66. Heading F1A. In a lever actuated pump the lever 24 is movable between fixed and adjustable stops 27, 28 by manual pressure on end 26 or by means of a pedal connected by a Brodin cable 47 to the lever. The lever acts on the piston 6 through a rod 21 having a spherical end 22 and the return spring 10 acts on the piston through rings 11, 12, the ring 12 having knife edges giving a universal joint effect. At maximum withdrawl of the piston 6, the deflection of the rod 21 with respect to the piston axis is arranged to be zero or less than at mid stroke; the Specification states that the eccentric line of action of the spring force may be used to counteract the remaining couple.
Patent GB-1366718-A (GB)
Title: Collision avoidance apparatus
IPC: G01S13/937
Filed: 1971-11-12
Abstract: 1366718 Radar SPERRY RAND CORP 12 Nov 1971 [18 Nov 1970] 52652/71 Heading H4D Apparatus for assessing manoeuvres of a first vehicle to avoid collison with other vehicles comprises means for providing signals representative of the positions and velocities of said first vehicle and the other vehicles, computing means responsive to said signals for computing regions respectively associated with said other vehicles, which regions if avoided by said first vehicle assure that the latter will not pass closer to said other vehicles than a predetermined distance, and display means coupled to the computing means for displaying the said regions relative to the position of said first vehicle. In the embodiment which is described the apparatus resembles that described in Specification 50622/71. There, the predicted tracks of intruding ships to points of probable collison with own ship were computed and were shown upon a synthetic display. Around each point of probable collision an area of possible collision, which was computed from considerations of uncertainties in position and other measurements, was displayed. Fig. 1 shows a synthetic display upon the screen of a cathode-ray tube in which location 1 represents the present position of own ship and 3 is a heading flash cursor. The end 5 of a line 4 represents the present position of a target ship 5 which might be regarded as an intruder. The straight line 4 indicates the intruding target's future track. The area 6, which may be elliptical, at the end of the track 4, represents a region of predicted danger that own ship 1 must avoid to be assured of passing the intruder ship by at least a predetermined distance. When the intruder is faster than own ship, there may be two danger zones such as are represented by the ellipses 8, 9 associated with one track. The pre-determined distance having been read into the computing means, the semi-major axis of each ellipse is computed using values, which are derived from measurements, relating to the position and velocity co-ordinates of own ship and the respective intruder ship. The semiminor axis of each ellipse, which would only be of significance if own ship and intruder ship were on parallel courses, is made equal to the predetermined distance. As shown in Fig. 3, an azimuth scanning radar system 21 feeds a cathoderay display tube 22, and a track-while-scan system 25. A target such as 22a is selected by holding a light-pen 23 to its image on the cathode-ray screen, and a starting electrical impulse is sent to the track-while-scan system upon the next brightening of the said image. A computer 27 receives inputs from the trackwhile-scan system 25, own ships speed and direction sensors, and from a manually operated control setting the value of the pre-determined miss distance. It provides output signals to a synthetic display cathode-ray tube 20.
Patent GB-1203698-A (GB)
Title: Process for the reduction of aromatic nitro compounds
Inventor: DODMAN DAVID
IPC: C07C291/08
Filed: 1968-03-29
Abstract: 1,203,698. Production of aromatic nitro compounds. IMPERIAL CHEMICAL INDUSTRIES Ltd. 7 Nov., 1968 [29 March, 1968; 24 Nov., 1967], No. 15392/68. Divided out of 1,201,050. Heading C2C. [Also in Division C4] A process for the manufacture of an aromatic azo-compound, nitroso-compound or azoxycompound comprises contacting an aromatic nitro compound with carbon monoxide in the presence of a catalyst comprising two or more heavy metals, defined as Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Ge, Zr, Mo, Ag, Sn, Sb, La, Ce, Nd, Ta, W, Re, Au, Hg, T1, Pb, Bi and Th, as their oxides hydroxides, carbonates or basic phosphates or as partial reduction products thereof, said catalyst having been prepared by a procedure including as a step either a coprecipitation or a heating together of the heavy metals as their hydroxides or heat unstable salts and the contact being maintained for a time insufficient to produce substantial proportions of over-reduction products. Specified starting materials include nitrobenzene, o-, m-, p-nitrotoluene, p-chloro (or bromo) nitrobenzene, p-nitroethyl (or butyl) benzene, m-nitrobenzonitrile, o-, m- and p-nitroanisole, 4-nitrodiphenyl ether, 4-nitroacetophenone and pfluoronitrobenzene.
Patent GB-1530719-A (GB)
Title: Filter press
IPC: B01D25/127
Filed: 1976-12-17
Abstract: 1530719 Filter press NIPPON GAISHI KK and NORITAKE IRON WORKS CO Ltd 17 Dec 1976 52851/76 Heading BID A filter press comprises plates 1 between which are arranged cloths 2 linked in pairs by chains 45 and suspended by. springs 43, and a cloth-vibrating mechanism movable by endless chain 9 lengthwise of the press along rail 3 and comprising a hammer 13 which describes a circular motion in a vertical plane to strike and vibrate transverse cloth-supporting bars 42 to discharge filter cake. Hammer 13 is plastic-coated and slides vertically relative to a bar 33 which is moun ted on bolts 31, 32, eccentrically located on discs 29, 30 rotated by motor 14. The hammer is adjusted vertically relative to bar 33 by an air cylinder (12) or a rack-pinion or screw shaft mechanism and only engages bars 42 in its lowered position. Two such hammers and driving mechanisms may be located on opposite sides of the press to vibrate opposite ends of the same bars 42 as they move along the press together. The two hammers may rotate in opposite directions and/or at different speeds to apply torsion to the cloths. A single hammer could move along the central longitudinal plane of the press.
Patent GB-1401868-A (GB)
Title: System for optically reproducing video information
IPC: H04N3/38
Filed: 1972-11-17
Abstract: 1401868 Film scanner MITSUBISHI DENKI KK 17 Nov 1972 [8 May 1972 18 Sept 1972] 53254/72 Heading H4F A film scanner is operative to correctly reproduce films which have been recorded at either 50 frames per second or 60 frames per second. A film is continuously fed by a capstan 18 controlled by a motor 34 whose speed is controlled by an electric power source 36 which provides power at either 50 or 60 Hz for operation at 50 or 60 frames per second respectively. The film is viewed by a flying-spot scanner 10 co-operating with a photo-transistor 22, the raster of the scanner 10 being controlled by one of the outputs of scan circuitry 12 to be correct for either 50 or 60 frames per second reproduction respectively, the scan circuitry 12 being synchronized by the output of a second photo-transistor 30 detecting synchronizing marks on the film. To identify film which has been recorded at 50 frames per second, the leading portion of such film may include a piece of aluminium foil 56, Fig. 3, which completes a circuit including a roller 58, Fig. 3, which has an insulating central portion 60 and conducting end portions 62, 64. Completion of this circuit closes a switch 48, Fig. 2, to cause flip-flop 46 to change state, thus making transistor 44 conducting, and operating relay 42 to position switches 38, 40 in their a positions as shown in Fig. 2. Flip-flop 46 is reset when the film is rewound and foil 56 again closes switch 48. Reset of flip-flop 46 causes transistor 44 to cut off, relay 42 to be deenergized, and switches 38, 40 to move to their b positions for reproduction of a 60 frames per second film. The presence of the aluminium foil 56 may alternatively be sensed optically. Instead of aluminium foil 56, film of one of the frame rates may be identified by one or more holes in the leading portion, for optical sensing, or alternatively film of one frame rate may have a transparent leading portion, film of the other frame rate having an opaque leading portion.
Patent GB-1342257-A (GB)
Title: Process for reducing the thiourea content of certain alkali metal and alkaline earth metal thiocyanates
IPC: C01C3/20
Filed: 1971-11-17
Abstract: 1342257 Purification of alkali metal or alkaline earth metal thiocyanates GLANZSTOFF AG 17 Nov 1971 [20 Nov 1970] 53281/71 Addition to 1276233 Heading C1A An improvement to Specification 1,276,233 such that the sulphate content as well as the thiourea content of sodium, potassium, calcium or barium thiocyanate solutions is reduced, comprises heating to a temperature in the range of 170 to 200 C. at a pressure which is at least equal to the saturation vapour pressure of the solution at the temperature used whilst maintaining a thiourea to sulphate ion molar ratio of at least 3 : 1 in the aqueous solution of thiocyanate by addition of thiourea if necessary. The resulting solution is then concentrated by evaporation, filtered and allowed to cool and the thiourea and sulphate-free thiocyanate which precipitates on cooling is separated.
Patent GB-1285446-A (GB)
Title: Improvements in or relating to record-changer gramophones
Inventor: CADDY EDWARD WILLIAM JOHN
IPC: G11B17/08
Filed: 1968-11-12
Abstract: 1285446 Automatic gramophones PLESSEY CO Ltd 10 Nov 1969 [12 Nov 1968] 53593/68 Heading G5R In a record-changer comprising a hand-lever 17 for selecting the required operation, a cyclecontrol lever 56, a switch-operating lever 14, and a release lever 46 operable by a cam surface 44 on the usual cam wheel 7 carrying a tap-tap lever 9, the blade 49 which dislodges a record from the shoulder 39 of the centre-post 3 to deposit it on the turntable 1 acts also to sense the absence of such a record and thereupon to displace the cycle-control lever 56 so as to initiate the switching-off of the apparatus and the automatic return of the hand-lever 17 and the cycle-control lever 56 to the "off" position. If a record is present on the shoulder 39, its central hole limits the movement of the blade 49.
Patent GB-1483057-A (GB)
Title: Metal casting apparatus
IPC: B22D17/00
Filed: 1973-11-24
Abstract: 1483057 Crucible furnaces DIMO (HOLDINGS) Ltd 21 June 1974 [24 Nov 1973] 54628/73 Heading F4B [Also in Division B3] In a low pressure die casting apparatus in which molten metal in a crucible 12 is forced up a feed tube 13 to a die 16, 17 by gas pressure acting on the surface of the metal in the crucible, the crucible is contained in a furnace 10 resiliently supported by means 31. The furnace 10 is mounted on a trolley 26 by means of four columns 25. The upper ends of the columns pass freely through blackets 27 secured to the furnace and the lower ends of the columns are provided with adjustable collars 30. Compression springs 31 surround the columns between the brackets 27 and collars 30 and support the whole weight of the furnace and the molten metal contained therein. The upward movement of the furnace, the tube 13 and nozzle 15 is limited by adjustable stops 29 attached to the upper ends of the columns 25. The die 16, 17 is carried by a support 18 pivotally mounted at 19 on a fixed structure 20.
Patent GB-1245149-A (GB)
Title: Improvements in or relating to frameworks for supporting hop plants
IPC: A01G17/04
Filed: 1968-11-18
Abstract: 1,245,149. Plant supports. BEKAERT S.A. N.V. 18 Nov., 1968 [23 Nov., 1967], No. 54685/68. Heading A1E. [Also in Division E2]  In a framework for supporting hop plants, steel cables 1, 5, are supported on upright poles 2, 3, 4, at least the peripheral poles 2, 3 being pivotable mounted on an anchorage block by means of a spigot provided at the bottom of a cap on each pole, engaged loosely in a tubular member on a concrete block embedded in the ground. The spigot may be on the block and the tube on the pole. Means are provided on the stays 17 holding the frame to adjust the tension of wire cables.