baber/WOPTO huggingface dataset:
Patent GB-1423829-A (GB)
Title: Noise reduction in gas burners
IPC: F23D14/46
Filed: 1972-11-22
Abstract: 1423829 Atmospheric burners D V GREAVES 25 Sept 1973 [22 Nov 1972] 53857/72 Heading F4T To reduce the noise in a gas burner, which has a chamber 10 with flame ports 3 and an air/fuel mixture injecting device 9 a flowdiffusing member 12<SP>1</SP> is disposed in the chamber between device 9 and flame ports 3 and across all of the path of the mixture from injector 9 to ports 3. The member 12 may comprise metal wire gauze formed into a U-shaped member or a tubular member surrounding a venturi injector 9 and spaced from both the injector and ports 3. The member 12 may be removed for clearing by removal of an end plug 14 to which the member 12 may be secured. For use with town gas an additional wire gauze may be located immediately below the burner plate 2 formed with the ports 3 to improve flame stability and avoid lighting-back. The ports 3 may be arranged in a pattern as disclosed in Specification 1,078,951.
Patent GB-1411116-A (GB)
Title: Nuclear fuel cores
IPC: G21C3/322
Filed: 1972-11-22
Abstract: 1411116 Cooling reactors GENERAL ELECTRIC CO 22 Nov 1972 [26 Nov 1971] 53881/72 Heading G6C In a nuclear reactor core in which fuel assemblies are supported to define cells each including number of assemblies spaced to define coolant by-pass channels, the exit area at the top of such a by-pass channel is restricted by one or more flow control members so as to reduce the coolant pressure differential between the main and by-pass channels. In one embodiment (Fig. 4, not shown) coolant flow channels (46(1)) have, at their upper ends, laterally-extending flanges which close off portions of the otherwise unrestricted by-pass channel (S) to reduce its exit area. In other embodiments (Figs. 5, 6, not shown) similar flanges are bent downwardly into the by-pass channel and provide means to assist the maintenance of the spacing between the flowchannels.  In further embodiments (Figs. 7, 8, not shown) two sides of a flow-channel (46) are provided with a member (61 or 61<SP>1</SP>) which backs up a spring flap (66 or 66<SP>1</SP>) which has a portion (67 or 67<SP>1</SP>) which can engage the member (61 or 611) of an adjacent flow-channel. In other embodiments (Figs. 9-11, not shown) the exit aperture of the by-pass channel is restricted by provision of a cruciform member (76 or 87) which can be a snap fit in the channel or can be bolted to the plates of an upper grid defining the cells. The cells are arranged each to contain four flow-channels supported at their bases atop control rod guide-tubes (24) (Fig. 1, not shown). The reactor may be a water-cooled variety.
Patent GB-1305125-A (GB)
IPC: B65D83/14
Filed: 1970-11-16
Abstract: 1305125 Pressurized dispensing containers CERBERUS AG 16 Nov 1970 [14 Nov 1969] 54345/70 Heading F1R A device for testing the operation of smoke detectors comprises a housing 1, 2 adapted to fit over the smoke detector and a container 7 containing only a non-toxic, pressurized liquid with a boiling point in the range -20 C to 20 C which is discharged into the housing 1, 2 through a spray valve 8. The container is held in the housing by a stirrup 3. The housing has a flexible portion 2 and the valve is actuated by pressure on an actuator 12, 13, 14 by the smoke detector. The liquid may be a mixture of dichlorodifluoromethane and dichlorotetrafluoromethane.
Patent GB-1204428-A (GB)
Title: Apparatus for handling glass sheets
IPC: B24B9/10
Filed: 1968-11-15
Abstract: 1,204,428. Conveyers. BIELFELDER UNION BRUNO KOCH. 15 Nov., 1968 [15 Nov., 1967], No. 54349/68. Heading B8A. Apparatus suitable for conveying sheets of glass comprises a roller conveyer from which the sheets are passed on to a belt conveyer by a reciprocable carriage. Load-supporting bars 4 of a carriage 5 move between driven conveyer rollers 2 and conveyer belts 3. The carriage 5 travels along a frame 6 which is raised and lowered by linkage 18, 21 actuated by a cam 24 and a roller 23. For moving the carriage horizontally, a crank 12 is driven by a planet wheel mechanism 14, 16, 17; the cam 24 and the crank 12 being driven by a motor 7 via reduction gearing 8 and belts 9-11. The sheets are held on the bars 4 by electromagnetically operated devices 26, 27. When the trailing edge of a sheet being fed by the rollers 2 comes into alignment with a guide rail 28 of the belt conveyer, the motor 7 is automatically switched on and the sheet is lifted off the rollers 2 by the bars 4. The carriage having moved into the region of the belts 3, it is lowered and the sheet engaged by the belts. The carriage is then moved to its starting position, ready to be raised to engage the next sheet. The rollers 2 and the belts 3 are preferably of plastic having good gripping qualities, and the bars 4 are preferably of rubber or plastic.
Patent GB-1253397-A (GB)
Title: Bit storage cells
IPC: G11C11/41
Filed: 1969-11-06
Abstract: 1,253,397. Transistor bi-stable circuits. INTERNATIONAL BUSINESS MACHINES CORP. 6 Nov., 1969 [5 Dec., 1968], No. 54365/69. Heading H3T. [Also in Division G4] Each one of a cross-coupled semi-conductor pair Q1, Q2 has a load consisting of two FET's Q5, Q7 and Q6, Q8, the FET's of each pair being rendered conductive at different times so as to represent a high load impedance to Q1, Q2. An oscillator 10 switches on Q7 and Q8 at the same time as it switches off Q5, Q6, and vice-versa. The supply A, which is one of the oscillator outputs, thus first charges the electrode capacitances C7, C8 and these in turn charge C1, C2 to voltages dependent upon which of Q1, Q2 is on. To read the state of Q1, Q2 a pulse on line 16 turns on Q3, Q4 to connect the drains of Q1, Q2 to lines 12, 14 which are maintained positive enough (+4v.) to prevent destruction of the state. To write, the line 16 is again pulsed to turn on Q3, Q4 and one of the lines 12, 14 is lowered to 0v. A matrix of the cross-coupled circuits may be used (Fig. 3, not shown).
Patent GB-1081870-A (GB)
Title: Digital-to-analog converter
IPC: H03M1/00
Filed: 1965-12-22
Abstract: 1,081,870. Selective signalling. SPERRY RAND CORPORATION. Dec. 22, 1965 [Jan. 4, 1965], No. 54377/65. Heading G4H. By comparison with the output of a continuously cycling counter, the contents of a store are converted into a mark/space ratio significant pulse train which is applied to a lowpass filter so as to produce an amplitude significant voltage representing the contents of the store.
Patent GB-1136869-A (GB)
Title: Method and apparatus for performing electrolyitc processes
Inventor: SAVIDGE ROGER GORDON MADGWICK
IPC: C25B9/17
Filed: 1967-12-01
Abstract: 1,136,869. Electrolytic cells. ALBRIGHT & WILSON Ltd. Dec.1, 1967, No.54773/67. Addition to 1, 056, 889. Heading C7B. The apparatus of Specification 1,056, 889 is modified in that the anode portions of the electrodes are formed of titanium coated with Ru, Pd, Rh, Ir or Os or an alloy of at least one of these metals with another of these metals or with Pt. The cathode portions of the electrodes may be of Cu, Fe or steel and are butt-jointed to the anode along adjacent edges by brazing, welding, soldering or connected by compressing or overlapping the edges.
Patent GB-1117560-A (GB)
Title: Variable-ratio power transmission mechanisms
IPC: F16H61/06
Filed: 1966-12-08
Abstract: 1,117,560. Change-speed control. GENERAL MOTORS CORP. 8 Dec., 1966 [29 Dec., 1965], No. 54922/66. Heading F2D. A vehicle automatic transmission of the type in which servo pressure for operating ratio establishing clutches and brakes is controlled by a regulator valve subjected to the conjoint action of throttle variable (TV) and speed responsive governor valves includes low, intermediate and high ratio servos with two (1-2 and 2-3) shift valves, provision being made to allow an automatic 3-1 downshift under zero or light throttle conditions when the vehicle is slowing down preparatory to stopping. For this purpose a downshift valve is incorporated and arranged to supply a blocking pressure to prevent downshift of the second (2-3) shift valve until the speed responsive pressure falls to a value at which the first (1-2) shift valve downshifts to establish low ratio. System details.-The arrangement described includes the normal pressure regulating and modulating valves (81, 105), TV and output speed governor valves (129, 126) and manual selector valve (197), Figs. 1, la (not shown), together with the first and second shift valves 232, 267 and the downshift valve 291. Pressure lines 217, 240, 277 supply the low, intermediate and high ratio servos, and lines 219, 221 connect the manual selector valve with the first and second shift valves 232, 267. Speed responsive and TV pressures are fed through lines 123, 125, the former being connected to a low and reverse ratio blocking valve 319. A downshift line 313 connects the downshift valve 291 with the second shift valve 267. Operation.-With high ratio engaged the spool 278 of shift valve 267 is held in the right hand position by governor pressure from line 123 with the space between plug 276 and spool 278 aligned with port 268 of downshift line 313. As the vehicle slows down TV pressure falls and pressure from the intermediate ratio servo line 240, which is connected between lands 295, 297 of downshift valve 291, acts on land 295 to force spool 299 to the left to close exhaust 309 and connect downshift line 313 to pressurized high ratio servo line 277. When pressure liquid from line 313 enters the space between plug 276 and spool 278 of shift valve 267 the plug and spool are forced apart so that the valve is held in the upshifted position regardless of the reduced governor pressure as the vehicle speed falls. However, the first shift valve 232 downshifts as the result of reduced governor pressure, causing the intermediate servo line 240 to be exhausted through line 231, thus allowing the downshift valve spool 299 to move to the right and exhaust downshift line 313. The pressure in line 217 causes the low ratio servo to operate as line 240 is exhausted, to provide overlap shifting between the third and first ratios.
Patent GB-1242688-A (GB)
Title: Process of preparing lysine monohydrochloride
IPC: C07C/
Filed: 1968-11-21
Abstract: 1,242,688. Lysine monohydrochloride. STAMICARBON N.V. 21 Nov., 1968 [22 Nov., 1967], No. 55272/68. Heading C2C. Lysine mono-hydrochloride is prepared by hydrolysing α-amino-#-caprolactam with more than 2 moles HCl/mole of lactam, recovering the lysine monohydrochloride by removing the surplus of HCl from the resulting hydrolysis mixture, at least partly by use of an anionexchanger, and thereafter recovering the HCl bound to the exchanger by forming a salt with α-amino-#-caprolactam, which salt is then hydrolysed to yield a further proportion of the lysine monohydrochloride. The hydrolysis is normally carried out at reflux temperature, and the HCl concentration is then reduced by vacuum distillation (while adding water) until the solution contains from 0À05-0À3 mole of lysine monohydrochloride/mole lysine dihydrochloride before subjecting it (in toto or in part) to anion-exchange treatment to remove more HCl and yield an aqueous solution lysine monohydrochloride from which the salt may be isolated, e.g. by spray drying. The anionexchanger bearing HCl can be regenerated either with aqueous α-amino-#-caprolactam, or with aqueous ammonia, in which case the eluate is then treated with aqueous α-amino-#-caprolactam to provide material for recycling.
Patent GB-1373133-A (GB)
Title: Current regulator
IPC: G05F3/26
Filed: 1971-12-06
Abstract: 1373133 Automatic current regulation  PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 6 Dec 1971 [9 Dec 1970] 56519/71 Heading G3X A current regulator includes a first divider circuit having transistors of one conductivity type and supplying two equal currents to a second divider circuit using transistors of the opposite conductivity type. The second divider includes a transistor with its base-emitter path shunted by an impedance and a semi-conductor junction of larger area.  In the embodiment shown, a pnp type current divider T 11 , T 12  supplies equal currents I to terminals A, A', connected to terminals B, B'of an npn divider comprising transistors T 13 , T 14  and a resistor R. The transistor T 13  may be a single transistor with a larger emitter area than transistor T 14 , or it may be a number of transistors connected in parallel. Further transistors T 15 , T 16  compensate for current variations due to the base currents of the other transistors.  The value of the current I is now closely determined by the setting of the resistor R, independent of the supply voltage. Additional stabilized current outputs may be taken from the collectors of additional transistors T 17 ', T 18 '. For a given resistance R, the current I is directly proportional to the temperature, so that the arrangement may be used as a thermometer. Alternatively, if the stabilized current is passed through a resistor and appropriate semi-conductor junction, a temperature independent voltage source may be produced.
Patent GB-1402704-A (GB)
Title: Mass dyeing of polyesters
IPC: D06P1/20
Filed: 1973-12-06
Abstract: 1402704 Mass dyeing of polyesters BAYER AG 6 Dec 1973 [7 Dec 1972] 56571/73 Heading C3R [Also in Division C4] Synthetic linear polyesters are mass-dyed by incorporating therein one or more dyestuffs of the general formula in which ring A may be substituted by one or more halogen atoms, alkyl or C 1 -C 6  alkoxy groups, and n = 1-4 and m = 0-2 with the proviso that n = 3 or 4 when m is zero. Suitable polyesters are linear aromatic polyesters such as polyethylene terephthalate or polyesters of terephthalic acid with 1,4-bis-(hydroxymethyl)- cyclohexane, which may be base- or acidmodified, e.g. with sulphoisophthalic acid. The dyestuff may be added during or after condensation, e.g. to powders, granules or chips of the polyester, as a powder or as a dispersion in a volatile liquid, e.g. water or alcohol and the dyed melt spun into filaments or shaped into solid articles.
Patent GB-1262697-A (GB)
Title: Improvements in or relating to mass spectrometers
Inventor: EVANS SYDNEY
IPC: H01J49/32
Filed: 1969-11-19
Abstract: 1,262,697. Mass spectrometers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 18 Nov., 1970 [19 Nov., 1969], No. 56648/69. Addition to 1,114,005. Heading H1D. The auxiliary ion beam control means 21, producing an effect compensating for irregularities in the magnetic field of the magnetic analyser 11 caused by eddy currents during scanning, which in the parent Specification is controlled in dependence on the variation of the current in the electromagnet 11C is now controlled by an additional unit 52 in accordance with a time variant function. The auxiliary beam control means 21 shown is an einzel lens (Fig. 2, not shown) but may alternatively be a single plate lens, or two plates arranged one on each side of the beam, or a coil. Alternative locations for the means 21 are between an output slit 9 of the e.s. analyser 7 and the e.m. analyser 11 (Fig. 3, not shown) or between the e.m. analyser 11 and an input slit 13 of the detector 17 (Fig. 4, not shown). In the latter ease, the e.s. analyser may be omitted. The time-variant function is produced by a function generator in the control unit 52, the form of the function being determined by trial and error. If the required focusing effect is constant throughout the scan, the function generator may comprise simply a battery and potentiometer. A connection 54 from control unit 51 triggers unit 52 at the commencement of a scan. Unit 52 preferably includes means to vary its output in accordance with variations in the accelerating voltage employed in the spectrometer.
Patent GB-1165199-A (GB)
Title: Corrosion Inhibitors
IPC: C23F11/10
Filed: 1966-12-19
Abstract: 1,165,199. Fuels. FARBWERKE HOECHST A.G. 19 Dec., 1966 [18 Dec., 1965], No. 56727/66. Heading C5G. Fuels comprise a diesel or fuel oil, an acid of general formula where Z is a C 3+  alicyclic, aromatic or aliphatic radical, X is 2 or 3, m is 1-10 and n is 1-4, and an aliphatic, cyclic or aromatic amine (excluding a mixture of 2(2: 4-dichlorophenoxy)-ethoxy acetic acid with either triethanolamine or diethylamine). Many examples of amines are given including Many examples of acids are given including those wherein Z is C 12  H 25 ; C 18  H 33 ,
Patent GB-1237620-A (GB)
Title: A method of selectively exposing a radiation-sensitive layer
IPC: G03H1/00
Filed: 1969-11-20
Abstract: 1,237,620. Photochromism. INTERNATIONAL BUSINESS MACHINES CORP. 20 Nov., 1969 [23 Dec., 1968], No. 56771/69. Heading C4S. [Also in Division G2] In a method of selectively exposing a radiation-sensitive layer, e.g. to form integrated circuits, a three dimensional mask 22 having a substantial finite thickness and having at least one radiation-transmitting passage is illuminated with coherent light 14, the passage having entrance and exit openings 34, 36 and being internally non-reflective, the magnitude of the resultant wavefront is recorded as a hologram 24, the hologram is illuminated with coherent light 38 and spatially reconstructs a radiation pattern having a three dimensional depth between real images 44, 46 corresponding to the entry and exit 34, 36, the radiation sensitive layer 50 being located between the seal images 44, 46. To compensate for grain irregularities the layer 50 is moved relative to the reconstruction pattern during exposure. Preferably the mask. 22 is opaque apart from one radiation-transparent passage. The radiationsensitive layer may be a photosensitive resist. The "thick" mask 22 may be formed as follows. A photochromic silver halide glass body 54 is darkened by exposure to ultra-violet light of 3000-4000 A. A mask 60, having an aperture corresponding to the radiation-transparent passage, is placed over plate 54 which is then exposed to infra-red radiation of 6000 A or longer, or heat to bleach the photochromic mask in the portion below the aperture. This forms the passage having non-reflective surfaces. To clearly define the entrance and exit of the thick mask 22, relatively thin masks are joined to the thick mask 22.
Patent GB-1174909-A (GB)
Title: Improvements in or relating to Piezoelectric Electroacoustic Transducers and Methods of making same
IPC: H01L41/22
Filed: 1966-12-21
Abstract: 1,174,909. Piezoelectric elements. NIPPON ELECTRIC CO. Ltd. 21 Dec., 1966 [21 Dec., 1965], No. 57094/66. Heading H1E. [Also in Division C7] A shear-mode piezoelectric transducer is produced by vacuum deposition at oblique incidence of an electrode and subsequently of a layer of piezoelectric material. The electrode 13, of, e.g. aluminium, is first deposited upon a substrate 11 forming an acoustic load. This may be made of, e.g. quartz, glass, rock crystal, ruby or cadmium sulphide. The piezoelectric layer 14 may consist of a Group II-VI compound, e.g. CdS. The angles a, b at which the crystals lie in the respective layers 13, 14 may be the same, e.g. 60 degrees, or may differ by several degrees. An outer electrode 15, of, e.g. gold, is deposited by evaporation. Because of the oblique incidence of the C-axes of the piezoelectric crystals both longitudinal and shear modes are generated, but the former is greatly attenuated. The Specification gives details of the methods used for evaporation (see Division C7).
Patent GB-1328596-A (GB)
Title: Hard sintered composition
IPC: C22C29/06
Filed: 1971-12-14
Abstract: 1328596 Sintered carbide compositions TOSHIBA TUNGALOY CO Ltd 14 Dec 1971 [1 Oct 1971] 58082/71 Heading C7A A hard sintered composition comprises, in weight per cent:- (a) 10 to 50% of a binder which itself consists of 25 to 70% molybdenum and/or molybdenum carbide and 30 to 75% iron, cobalt and/or nickel. (b) Up to 5% of zirconium carbide. (c) Balance titanium carbide or titanium carbide and tantalum carbide wherein the weight of the tantalum carbide is less than the weight of the titanium carbide. Preparation The various powdered ingredients are milled together, cold-pressed into compacts, presintered in hydrogen or 650‹C and then final sintered in an induction furnace at 1,350‹C in an inert atmosphere, e. g. dry hydrogen, argon or helium, while maintaining a very low pressure in the furnace.
Patent GB-1285469-A (GB)
Title: A graphic display system
IPC: G06F3/033
Filed: 1969-11-27
Abstract: 1285469 Cathode-ray tube display TEKTRONIX Inc 27 Nov 1969 [6 Dec 1968] 58173/69 Heading H4T A cathode-ray tube display system is provided with means for selecting a required subarea of the display for subsequent enlargement. As shown (Fig. 1) applied to an incremental plotter, pulses on line 12 count up or down the contents of 14 which controls through D/A converter 24 the X deflection of the beam of tube 36, a similar counter (not shown) controlling the Y deflection. Switches 28 enable selection of a suitable scale for a new presentation by controlling the orders of 14 to which 24 is connected, and the new and old settings of 28 are compared at 58 to generate a cursor or frame traced on the tube screen at 44 (Fig. 2) by generator 56. The X-position of the cursor is set on switches 46 and transferred to register 50 by pulses from 48 cut off by 54 when the register is correctly loaded, clock pulses also passing to 14 to control the X-position of the cursor on the old display. Computer 10 then erases the old display and cursor, and the counter 14 is suitably preset by 50 to determine the start of the new scan, highorder outputs from 14 inhibiting display until these orders are counted up to zero. The tube 36 is of the bi-stable storage type employing auxiliary flood guns. The logic circuitry of the units of Fig. 1 is described and illustrated schematically.
Patent GB-1378482-A (GB)
Title: Soil compressing members
Inventor: VAN DER LELY A
IPC: A01B33/06
Filed: 1971-12-15
Abstract: 1378482 Soil working and compressing members C VAN DER LELY NV 15 Dec 1971 [18 Dec 1970] 58351/71 Heading A1B [Also in Division F2] A rotary soil compressing member. 1 for consolidating soil worked by members 22 comprises a set of circumferentially spaced elongated elements 8 extending parallel to the axis of rotation and adjustably disposed in a variable helical manner. The member 1 has a central rotary shaft 2 with six equally spaced octagonal plate-like supports 3, 4 secured along it. An arm 6 on the edge of each support has a hole at its end through which an element 8, which may be tubular and made of spring steel, passes. Successive supports 3, 4 are angularly displaced by 18. Transverse pins 9 through opposite ends of tube 8 beyond plates 3 prevent lateral movement, but the tubes are free to rotate in the holes in arms 6. The height of element 1 with respect to the frame of the cultivator can be altered to set the depth of penetration of soil working members 22. Shaft 2 is journalled in arms 10 which are pivoted at opposite ends of beam 10A. A pin 13 attached to each arm 10 is displaceable in a slot 12 by means of a spindle 16. In sticky soil, alternate tubes 8 may be removed after withdrawing the appropriate pins 9. Vertical soil working members 22 are arranged and driven as' described in U.K. Specification 1,226,679 and the lateral plates 20 are as described in U.K. Specification 1,277,679. In one alternative embodiment, Figs. 3, 4 (not shown) plates 3, 4 are replaced by plates (33) with eight circumferential projections which each have a U-shaped recess (34). Tube 8 is held by pins (35) across each recess and at its ends by pins (36A). In another embodiment, Figs. 5, 6 (not shown), a support at one end of shaft (40) is rigidly fixed to it. The five other support plates are rotatable about the shaft, and that (41) at the opposite end has a curved slot (42) in which a bolt (43), fastened to a support plate (44) which is rigid with shaft (40), can be loosened allowing support (41) to be adjusted rotatably and varying the angle of inclination of the helically wound elements relative to the axis of rotation. Reference has been directed by the comptroller to Specifications 1,277,679, 1,226,680 and 1,226,679.