baber/WOPTO huggingface dataset:
Patent GB-1315572-A (GB)
Title: Printed teaching programme apparatus
IPC: G09B3/02
Filed: 1971-09-23
Abstract: 1315572 Question-and-answer appliance H KUNERT 23 Sept 1971 [28 Sept 1970] 44454/71 Heading G5G A question-and-answer appliance comprises a bottom plate 11, a cover-plate 12, a rotary plate 17 located between them, and a programme sheet 22 located for rotation on the rotary plate and having problems and solutions printed thereon, the cover-plate 12 having one or more segmental windows 21 through which at least two consecutive problems 24, 25 and the solution 26 to one of them are simultaneously visible and through which a user can record an answer on a repeatedly usable and erasable writing tablet 28 on the rotary plate, an erasing device 34 being disposed between the coverplate and the bottom plate for automatic erasure of the writing tablet. The device 34 may be pivotable about the central pin 16 within the limits of the extension 32 of the window 21. The bottom and cover-plates may be joined by a hinge 14 so that the programme sheet can be easily changed. Alternatively, the plates are rigidly joined at four corners by rivets, and the centre part of the cover-plate is formed as a hinged flap. The writing tablet may be a coated plate from which writing can be wiped off, or the known type of multi-foil tablet, from which writing is erased by separation of the foils. In a further embodiment (Fig. 3, not shown), provision is made for writing a further mark by each problem on a part of the tablet which can be retained or erased at will, depending upon the position of a slidable erasing device. The appliance may be of papier machÚ or plastics.
Patent GB-1359319-A (GB)
Title: Undeewater well completion method and apparatus
IPC: E21B33/047
Filed: 1971-09-23
Abstract: 1359319 Wells &c ROCKWELL INTERNATIONAL CORP 23 Sept 1971 [30 Sept 1970] 44455/71 Heading E1F An underwater well is completed by installing a conductor casing with a riser 413 extending from the conductor casing to the drilling platform, installing casings 440, 450, 460 having risers (the riser for the casing 460 not being shown) attaching a blowout preventer to the top of the riser 453 of casing 450, removing any riser within the riser 453, attaching a tubing head 470 to the innermost casing 460, suspending and latching a tubing hanger 500 supporting tubing 501, 502 from the tubing head, and removing the blowout preventer and the remaining risers except the riser 413. The riser 413 is cut adjacent the mudline, a wellhead 455 is connected by a casing joint 456 to the casing 450, a guide base 600 attached to the well head is welded to the riser 413, and a christmas tree 620 is connected to the tubing and the wellhead. After the tubing head is installed a device 480 for orienting the tubing hanger is connected to the tubing head, the device itself being oriented by engaging lugs 476 in the tubing head. Part of the device is removable and may be replaced in its original position. The tubing hanger has latches 565 which are operated by the weight of the tubing to engage the head. In apparatus described with reference to Figs. 1-10 (not shown) and which is disclosed in Specification 1274694 there is no tubing head, the tubing hanger seating directly on the hanger for the innermost casing.
Patent GB-1223025-A (GB)
Title: Improvements in or relating to photo-reproducing apparatus
Inventor: KOIZUMI YUTAKA
IPC: G03B27/52
Filed: 1968-09-19
Abstract: 1,223,025. Photo-copying apparatus. RICOH K.K. Sept.19, 1968 [Sept.20, 1967], No.44505/68. Heading G2A and G2H. An electro-photographic apparatus has a slit exposure device comprising a first movable mirror 4 making an angle of 45 degrees with an original support surface 2; a second movable mirror 5 making an angle of 22 degrees 30 minutes with the surface; a third movable mirror 6 making an angle of 67 degrees 30 minutes with the surface; and a fixed lens 9 the optical axis of which makes an angle of 90 degrees with the surface; there being means for moving the mirrors in synchronism, but with the first mirror travelling at (2 + #2) times the speed of the other two so that the optical path length remains constant, in the directions shown so as to scan an original 3 line by line and project the images therefrom on to synchronously driven photo-sensitive paper 11. The original is illuminated by moving lights 7, 8. The copy paper is stored in a roll and charged by a charger 13 before passing the exposure slot 1b Thence the exposed paper is guided through liquid developer 16, cutters 12 severing the paper when the exposure is finished. The mirrors and lights are then returned to the positions shown.
Patent GB-1450071-A (GB)
Title: Electronic timepiece
IPC: H03K23/66
Filed: 1973-09-24
Abstract: 1450071 Electronic timepieces CITIZEN WATCH CO Ltd 24 Sept 1973 [2 Oct 1972 21 May 1973] 44628/73 Heading G3T [Also in Division G4]  In an electronic timepiece comprising a crystal controlled oscillator circuit followed by a frequency divider chain producing a time unit signal which is fed to counters for driving a time display, e.g. comprising liquid crystal or light-emitting diode elements or a pulse motor driving hands via gears, regulation of the running rate of the timepiece is effected by adding, in a frequency adder circuit, the oscillator output frequency to that of an adjustment signal from an adjustment circuit which is selectively controlled by an external signal to adjust for fast or slow operation of the timepiece. The frequency adder output is applied to the divider input which, in effect changes the division ratio of the divider and adjusts the frequency of the time unit signal (nominally 1 Hz). In Fig. 9A output pulses at 2<SP>21</SP> Hz from an oscillator circuit 91 are applied to a frequency divider chain 95 via a frequency adder in the form of an EX-OR gate 911 together with adjustment pulses from a controller 93. In response to a "low" level control input signal at any one or all of input terminals Jo --- J9, calling for adjustment, a respective NOR gate passes a signal from a Q output (Q 1  2  - Q 21 ) of a respective stage in the f divider 95 to EX-OR gates which add the frequencies of the selected outputs Q 1  2  - Q 21  together. The result is applied via a delay element 910 to the frequency adder 911 where it is added to the oscillator output. The divider outputs Q 16  - Q 21  (Fig. 9A) are connected to drive a pulse motor 97. Figs. 8A-8I illustrate logical input terminal circuits which can be set, e.g. by manual setting switches operated from outside the watch to provide the high or low level inputs to the terminals J and some of which have a memory function. In an embodiment described with reference to Figs. 11 and 14 (not shown) the tappings from the f divider, used for correction of running rate, are selectively connected into the correction circuit by a solder bridge or link or by a selector switch.
Patent GB-1526429-A (GB)
Title: Apparatus for modifying the timebase of signals
IPC: G11B20/02
Filed: 1975-10-29
Abstract: 1526429 Television EASTMAN TECHNOLOGY Inc 29 Oct 1975 [29 Oct 1974] 44700/75 Heading H4F Apparatus for removing time base instabilities from video signals having a nominal horizontal line frequency, comprises three analogue chargecoupled shift registers CCD1-3 through which the signals are fed, an oscillator 48 coupled to the registers and having a frequency sufficient to load and unload each register with a complete line of video signal when the signal is at its nominal line frequency, the video signals being loaded and unloaded from respective registers at the same clock rate, and logic circuitry coupled to the registers and enabling a line of video signal to be fed into one register while a previous line of video signal is fed out of another register. The signals are stored in the registers such that the lead (sync.) part of each signal in a respective register is stored at the output end of the register irrespective of whether the signal is of the proper, i.e. nominal, length, stretched or compressed. Those portions of video signals stored adjacent the register inputs will ordinarily occur behind the right-hand side of a mask in a television set. The apparatus is described particularly for use with a video tape recorder and further includes a line sync. separator 11 for applying the sync. information to a three-bit ring counter 12 which controls the clocking of line representative signals into CCDs 1-3 successively. Clock-out of the CCDs does not occur until the lead sync. portion of each video line signal is stored in the output of the respective CCD. Flutter is effectively removed from the output of sync. separator 11 by a low-pass filter 46 included within a phase lock loop incorporating a voltage controlled oscillator 48, the output of which is divided by divider 50 to provide a signal frequency for comparison with the output of delay 44, The divider 50 provides a line signal frequency controlling the switching of read-out from one CCD to the next while VCO 48 provides clock pulses for reading out all the stages in each CCD. A blanking circuit may be provided to block the last five percent of each line from appearing in the output. The specification refers to the use of NTSC video signals.
Patent GB-1592696-A (GB)
Title: Roadway for wheeled vehicles
IPC: E01B25/28
Filed: 1977-10-28
Abstract: The track is suitable as a trackway superstructure for such vehicles in those regions in which the vehicles require their own line with lateral guidance, for example in the case of overhead railways and tunnel sections. The track is to be capable of being manufactured and adjusted and subsequently also height-adjusted and repaired rapidly and simply. Accordingly, the concrete trackway of the track consists of reinforced-concrete prefabricated parts (3) which are detachably interconnected at their junction points (20) and are fastened height-adjustably on the substructure (10) of a support construction by means of bearers (5). <IMAGE>
Patent GB-1096289-A (GB)
Title: Laser tool apparatus
Inventor: MYER JON HAROLD
IPC: B23K26/03
Filed: 1966-10-10
Abstract: 1,096,289. Lasers. HUGHES AIRCRAFT CO. Oct. 10, 1966 [Nov. 1, 1965], No. 45109/66. Heading H1C. A laser is associated with a viewing device for focussing the laser beam on a workpiece, and a control knob is provided which in one position permits the workpiece to be viewed and in the other position prevents such viewing and connects the laser pumping source to an energizing circuit. The workpiece is viewed through microscope eyepiece 42, light from the workpiece passing vertically through an objective lens holder 54 and dichroic beam splitter 22, when a shield 41 is in the position shown. When the shield is moved to its alternative position, abutting stop 84, and laser 25 is energized the laser output is reflected by beam splitter 22 through the objective lens on to the workpiece. A reflective layer on the beam splitter selectively reflects the laser light while transmitting light of other frequencies. The shield is attached to a shaft which also carries three cams which operate switches 86, 87 and 88. Fig. 6 shows the positions of the switches when the shield is in the viewing position. As the shield is moved to its other position switch 86, which shorts out a capacitor bank 98, is opened, then switch 87 is closed, and finally, when the shield reaches its other position, switch 88 is closed. The capacitor bank is then charged and when a predetermined voltage is reached a sensor 100 closes an electronic switch 101 to apply a charging voltage to a flash lamp surrounding the ruby laser rod. Sensor 100 also closes, after a short delay, a switch 106 allowing a triggering voltage to be applied to the laser housing and causing the laser to generate an output light pulse. After a further short delay a relay winding 113 is energized to open switch 87 and prevent further actuation of the laser. The switch is reset by rotating the shield towards the viewing position and then returning it to its laser-operative position. Alternatively switch 87 and the associated cam may be eliminated, in which case the laser will operate repeatedly until stopped by rotation of the shield to the viewing position. The assembly shown in Fig. 4, may be mounted by means of a leader screw arrangement on a base, with a mechanism for raising or lowering the assembly to focus the laser on to the workpiece, mounted in a recess in the base.
Patent GB-1482196-A (GB)
Title: Upgrading air-contaminated methane gas compositions
IPC: C07C7/00
Filed: 1973-09-27
Abstract: 1482196 Separating gases PETROCARBON DEVELOPMENTS Ltd 27 Sept 1974 [27 Sept 1973] 45364/73 Heading F4P  A process for upgrading air-contaminated methane gas in lines 1 comprises condensing it in exchanger 11 and then passing it via line 14 to column 13 to fractionate it into a first product which has a higher methane content than the feed and which is withdrawn from the bottom of column 13 and a second product which has a methane content below that of the feed but above the highest limit of the flammability range of methane-air mixtures, the second product being withdrawn from the top of column 13. Air-contaminated methane gas in the lines 1 is drawn via common line 2 into a vacuum - pump - compressor 3, is compressed and passed to cooler 5 where moisture is condensed which is separated from the gas at 6, and the gas then passes via line 7 to one of the pair 8 of regenerative adsorbers 8a, 8b where residual water vapour and/or CO 2  is removed. The gas then passes via line 9 to heat exchanger 11 where it is cooled by countercurrent heat exchange with evaporating first product fed by pump 17 and the cold gaseous second product in line 22. The condensed feed from exchanger 11 is then sub-cooled in reboiler 12 in heat exchange with part of the methane-rich first product which is recirculated back to column 13. The feed is then expanded through valve 15 into column 13. Part of the methane-reduced first product 22 is fed via line 22a to compressor 25, the resulting fuel being used to operate expansion turbines 4, 26, 21, while a second part 22b is fed as regenerative gas to adsorbers 8a, 8b. The methane-rich product passes to compressor 19.
Patent GB-1011614-A (GB)
Title: Manufacture of chlorine
IPC: C01B7/04
Filed: 1963-11-18
Abstract: <PICT:1011614/C1/1> Chlorine is produced by contacting HCl and/or NH4Cl with moving beds of inert granular supports integrated with chlorides or oxides of Fe, and with chlorides of Cu or of Cd, and with alkali metal chlorides and flowing by gravity through superimposed reaction chambers wherein occur successively reduction, chlorination and oxidation of the masses, the oxidation being carried out in two stages comprising (1) re-oxidation of the metals of the integrating salts to their maximum valency and (2) oxidizing dechlorination of said salts, whereby Cl2 is liberated.  The apparatus used may be essentially that described in Specification 1,005,771, with addition of a fourth chamber, chamber 3 being used for re-oxidation and chamber 4 (see Figure) for dechlorination. The latter has inlet 11 for oxidizing gas and outlet 12 for the Cl2-containing gases produced, part of which may be fed into chamber 3 through conduit 7 to provide just sufficient Cl2 to effect the re-oxidation.  Alternatively, re-oxidation may be effected by injection of about one-third of the total requirement of O2 into inlet 9.  NH3 may be recovered from NH3-metallic chloride complexes formed during chlorination by sweeping the granules with inert gas.
Patent GB-1145637-A (GB)
Title: New sympathomimetic amine
IPC: C07C245/14
Filed: 1967-10-06
Abstract: 1,145,637. Amine. DR. L. ZAMBELETTI S.p.A. 6 Oct., 1967 [11 May, 1967], No. 45880/67. Heading C2C. 1 - (3,5 - Dimethoxy - 4 - hydroxyphenyl) - 2- methylaminoethanol and its acid addition salts are prepared by the following reaction scheme optionally followed by salt formation. The aminoketone is converted to the hydrochloride before reduction. The compounds of the invention are hypertensive agents, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-1479557-A (GB)
Title: Method for preparing low-substituted cellulose ethers
IPC: C08B11/20
Filed: 1975-11-06
Abstract: 1479557 Tablet disintegrators comprising cellulose ethers SHIN-ETSU CHEMICAL CO Ltd 6 Nov 1975 [28 Nov 1974] 46089/75 Heading A5B [Also in Division C3] Cellulose ethers used as disintegrators in tablets are prepared in a manner [see section C3] that is stated to improve their performance by reducing the incidence of capping and increasing the distintegration speed. Test results are given for tablets comprising hydroxyethyl cellulose, magnesium stearate talc, phonathetin, lactose and polyvinylpyrrolidone, methyl cellulose, lactose, magnesium stearate and talc; and hydroxypropyl cellulose, CaHPO 4  and magnesium stearate.
Patent GB-1135511-A (GB)
Title: Method of making a salt-rejecting membrane
IPC: B01D39/08
Filed: 1966-10-17
Abstract: 1,135,511. Permeable membranes. UNITED STATES ATOMIC ENERGY COMMISSION. 17 Oct., 1966 [23 Oct., 1965], No. 46251/66. Heading B5B. [Also in Divisions B1 and B2] A method of making a dynamic permeable membrane on a substrate comprises applying an aqueous phase containing a water-soluble or a finely-divided water-insoluble material under pressure to one surface of a film of regenerated cullulose having pores in the range of 30  to 5 microns. Specified materials are neutral organic polymers, polyelectrolytes, organic ion exchangers, inorganic ion exchangers and polyvalent metal salts and mixtures thereof.
Patent GB-1487077-A (GB)
Title: Aircraft wing assemblies
IPC: B64C21/00
Filed: 1975-10-20
Abstract: 1487077 Aircraft wings DEFENCE SECRETARY OF STATE FOR 20 Oct 1975 [29 Oct 1974] 46863/74 Heading F2R [Also in Division B7] An aircraft wing 2 which receives the efflux of a jet engine 1 along its upper surface, has a hinged trailing edge portion 2a and retractable flap 4. The trailing edge portion is movable between a lower position in which it abuts the flap 4 and forms with it a continuous curved surface, and an upper cruise position (shown) in which the efflux is not directed over the flap 4. In its lower position the trailing edge portion serves to direct the efflux over the flap 4 and an additional flap 5 to increase lift. The trailing edge portion 2a may also be positioned upwardly so as to act as a spoiler to reduce lift. The trailing edge portions 2a of the port and starboard wings may be linked so as to act in the opposite sense and thus control roll of the aircraft.
Patent GB-1495017-A (GB)
Title: Optical systems for the display of visual images
IPC: H04N7/00
Filed: 1974-10-30
Abstract: 1495017 Optical image dissection and reconstruction REDIFON Ltd 30 Oct 1975 [30 Oct 1974] 46942/74 Heading G2J An image of wide angle format is optically dissected and the parts rearranged and recombined into a second format which is transmitted electrooptically, the received second format image being optically redissected and re-arranged to reform the first wide angle format. In an example, Fig. 3(a), a wide angle image of 9:1 width to height ratio is dissected into equal parts E, F, G, and the outer parts E, G rearranged as shown by arrows 24, 24', 25 to give a square format bounded by 30. The square format is suited for optimum use of an electro-optic transmission system (e.g. television) having circular target and reproduction screens. The reproduced square format image is reconstructed to the wide angle format by reversing the original operation. The areas of maximum distortion of the electrooptic system are shown shaded, and will leave the reconstructed image with the upper edge (horizon) substantially distortion free. Fig. 5 shows an optical system for imaging a wide angle scene as a square format image on the electro-optic target in accordance with the Fig. 3(a) dissection and rearrangement, and Fig. 7 shows an optical system for reconstructing the wide angle image from the square image of the electro-optic receiver. Wide angle objective 40 produces a real wide angle image at 41 which is dissected into three light parcels by prism 43. Lens 49 brings the parcels to a common focus and lens 406 collimates light emanating from said focus, each collimated parcel passing through a respective notional pupil 400-402. Each parcel is deflected by a corresponding prism 500-502 such that all three parcels approach lens 407 with their axes parallel to that of the lens 407. The outer parcels are then deflected, one above the plane of Fig. 5 and the other below, by prisms 503, 504, so as to achieve the "stacking" of the image parts shown in the rearrangement of Fig. 3(a). Inversion of part E is achieved by making prism 500 a roof prism. As shown in Fig. 7 the square format image on receiver 60 is projected via prism 64 on to an array of three spherical mirrors 71-73 of equal power but of different orientation such that each produces a separate parcel of rays for that part of the image falling on to it. The separate parcels are recombined to a wide angle image 605 by optics 66-69, 700-704, 604. Three alternative methods of dissection and reconstruction are described, and optical systems specific to one of them are described in detail. A method of dissection and reconstruction known in the prior art and taught in U.K. Specification 1366147 is also described. The system is particularly suited for use with projecting displays for flight, nautical or land vehicle simulators.
Patent GB-1352726-A (GB)
Title: Process for the production of water soluble starch hydrolysates  and products obtained thereby
IPC: A23K1/18
Filed: 1971-10-08
Abstract: 1352726 Animal feeds CPC INTERNATIONAL Inc 8 Oct 1971 [29 Oct 1970] 47072/71 Heading A2B [Also in Division C3] An animal feed composition comprises from 20-70% by weight of proteinaceous material and from 20-80% by weight of a starch hydrolysate having a cold water solubility of at least 90% by weight obtained by liquefying starch to a DE of 1-6, subjecting the product to superatmospheric pressure, and thereafter spray drying the resulting conversion product. The proteinaceous material is preferably dehydrated milk, whey solids, fish meal or corn gluten and as an additional ingredient 10-25% by weight of vegetable oil, fat, vegetable fibers, starch, vitamins, minerals or antibiotics may also be incorporated.
Patent GB-1248954-A (GB)
Title: Electronic digital converter and read-out unit
IPC: H03M1/00
Filed: 1968-10-04
Abstract: 1,248,954. A/D converters. BAXTER LABORATORIES Inc. 4 Oct., 1968 [13 Oct., 1967], No. 47080/68. Heading G4H. An analogue/digital converter includes a counter/printer 18 (Fig. 2) receiving a train of pulses until a reference ramp signal from ramp generator 108 equals the analogue input signal. In one embodiment on depression of a start switch 50, the ramp generator 108 feeds a linearly varying signal to comparator 106 for comparison with the output of a spectrophotometer 104, a contact A being simultaneously closed to feed cycles of the mains signal via a diode 103 to the solenoid 20 of units print wheel in printer 18, carry pulses being transmitted to the tens and hundreds solenoids 24, 28. On equality relay K2 is operated to earth the units solenoid and energize a print solenoid 30 so that the count is printed on paper tape. In the embodiment of Fig. 3, the ramp signal is derived from a capacitor so that the printed output is logarithmically related to the input. Calibration is effected by testing a blank sample such as pure water and adjusting manually the gain of operational amplifier 200 via the potentiometer 202. A standard sample is then tested and resistor R is adjusted until the printer prints the correct reading.