baber/WOPTO huggingface dataset:
Patent GB-1218725-A (GB)
Title: Compositions, methods and articles for detecting x-ray radiation
IPC: G01T1/04
Filed: 1969-07-15
Abstract: 1,218,725. lodinated cholestanes. WESTINGHOUSE ELECTRIC CORP. 15 July, 1969 [22 Aug., 1968], No. 35638/69. Heading C2U. [Also in Division H5] Novel steroids of the formula (where A and B are each H or I and R is aryl, iodoaryl, alkyl, iodoalkyl, alkaryl, iodoalkaryl, aralkyl or iodoaralkyl or is the group OR<SP>1</SP> where R<SP>1</SP> has the same meanings as R, and there is at least one iodine atom present) are prepared by esterification of the corresponding free 3#- ols, or by concomitant esterification and iodination of cholesterol, or by esterification of cholesterol followed by iodination, or by iodination of the ester moiety in an appropriate unsaturated ester which process may be accompanied by iodination of a #<SP>5</SP> double bond. These compounds, and other known iodinatde cholestanes, e.g. 3-, 5- and 6-iodocholestanols, 5,6-diiodocholestanol, 3,5,6-triiodocholestane and 3-iodocholesterol (cholesteryl iodide), are cholesterogenic materials capable of exhibiting cholestericphase liquid crystals, and are used in a method of detecting X-ray radiation (see Division H5). The preparation of 5-iodocholestanyl 9,10- diiodostearate is described; as is the preparation of 5-iodocholestanyl 9,10-diiodoatearylcarbonate by reacting hydriodic acid with cholesterol to give 5-iodocholestanol, reacting this with pyridine to give 5-iodocholestanyl chloroformate and reacting this with 9,10-diiodostearyl alcohol.
Patent GB-450400-A (GB)
Title: Improvements in electrical frequency indicators, also applicable to speed indicators
IPC: G01R23/02
Filed: 1934-12-12
Abstract: 450,400. Frequency measurements. LEDWARD, T. A., 32, Blacklow Brow, Huyton, Liverpool, and RECORD ELECTRICAL CO., Ltd., Atlantic Street, Broadheath, Altrincham, Cheshire. Dec. 12, 1934, No. 35648. [Class 37] In an electric frequency meter a resistive and inductive impedance B, C are connected in series across the supply to be tested and the voltages across them are applied to a D.C. instrument H through rectifiers D, E. The inductive impedance C may be a transformer with an open magnetic circuit the primary of which is in series with the resistance B and the secondary is connected to the rectifier E. The rectifier may be of the full wave dry surface contact type with resistances F, G connected across their output terminals and the instrument H connected in a series circuit with these resistances so as to be energized with the difference voltage. In a modification the resistance B and inductance are shunted by two half wave rectifiers and the instrument H is connected between the junction point of the resistance and inductance and that of the two rectifiers. In a further modification, Fig. 3, the arrangement in Fig. 1 is connected across a condenser J which is in series with a resistance K across the mains A. The condenser and resistance are arranged to byepass harmonics and the resistance may be partly or wholly a barretter resistance. Smoothing inductances M, and adjusting resistances h5, L may be included in the rectifier circuits and the supply to the rectifier D may include a series resistance coil c3 wound on the transformer C which varies its resistance with the temperature of the transformer and compensates for changes in the resistance of the secondary c2 and also for changes in the inductance of the transformer. The transformer C may alternatively be divided into two series connected transformers each having a tertiary winding and these last windings being oppositely connected in series in the circuit of the rectifier D so as to introduce an inductance in the circuit D without coupling to the transformer C. The rectifiers may alternatively have their output terminals d3, e4 and d4, e3 connected together through resistances with the instrument H connected across the terminals d4, e4, or each rectifier may supply a separate coil on a differential instrument. All the components comprising resistance formers, condenser, smoothing chokes, rectifiers, and transformer C which has an air gap adjustable by a screw, may be mounted on a base board with suitable input and output terminals and a ventilated cover.
Patent GB-301915-A (GB)
Title: Improvements relating to induction type electricity meters
IPC: G01R11/185
Filed: 1928-12-04
Abstract: 301,915. Associated Electrical Industries, Ltd., (formerly Metropolitan- Vickers Electrical Co., Ltd.), (Assignees of Ratz. E. G.). Dec. 9, 1927, [Convention date]. Induction motor meters are provided with an overload compensating device together with a combined low load and temperature compensating member. As shown, the light load adjustment comprises a member 36 mounted on an L-shaped magnetizable part 11 comprising the overload adjustment. The light load adjustment 36 conforms in shape to the part 11, its lower face forming a loop which overlaps the face 27 of the member 11. The loop is moved across the voltage core by an adjusting screw 43 and the device 36 is biassed towards the member 11 by a leaf spring 42. The face 27 of the member 11 is slotted at 46 and a magnetizable strip 48 of nickel-copper &c. alloy is located between the face 27 and member 36. The strip 48 assists in the compensation at light loads and also compensates for temperature variations.
Patent GB-848796-A (GB)
Title: Improvements in stationery feeding mechanisms for typing machines
Inventor: TAPERELL GEOFFREY LESLIE
IPC: B41J11/32
Filed: 1956-11-23
Abstract: 848,796. Typewriters &c. SMITH & SON (ALACRA) Ltd., W. H. Nov. 23, 1956, No. 35911/56. Class 100(4) An attachment for feeding stationery to the platen of a typing machine comprises pin type devices adjustable independently laterally of the stationery. Pairs of pin wheels 25 are keyed to shafts 19, 20 driven by gearing 22 from the platen and are slidable on the shafts. The pin wheels are held in the forked ends of carriages 23, 24 movable widthwise of the stationery by screwed rods 30, 31 which have at their ends gear wheels 34, 35 for engagement by a gear 39 mounted on a shaft 37 which has a handwheel 38. Sliding of the shaft 37 can engage the gear 39 with the desired gear 34 or 35 to move the appropriate carriage and its associated pin wheels in either direction. Specifications 848,793, 848,794, 848,795 and 848,797 are referred to.
Patent GB-1394678-A (GB)
Title: Casting machine and process for casting
IPC: B29D19/00
Filed: 1971-07-30
Abstract: 1394678 Casting machines BP CHEMICALS INTERNATIONAL Ltd 5 July 1972 [30 July 1971] 35911/71 Heading B5A [Also in Division B1] A casting machine comprises a first nozzle or nozzles 4 capable of oscillating horizontally and being fed by two or more liquid reservoirs 1, a first inclined trough 10 disposed below the nozzle(s) 4, means for collecting the liquid from trough 10 and for feeding a second horizontally oscillating nozzle or nozzles 16 and a second trough 20 disposed below the nozzle(s) 16 for feeding a mould. The collecting and feeding means may comprise a cup or funnel 14 and a flexible tube or channel 15. The nozzle(s) 4 are mounted in a metal grid 5 which is oscillated by a linear pneumatic motor 8 and jointed linkage (9, Fig. 2) acting on an arm 6 carrying the grid 5. The nozzle(s) 16 is oscillated by a linear pneumatic motor driving a slidable rod (17, Fig. 2) acting on a slotted bracket 18- The nozzles may be oscillated at a frequency up to 2000 strokes/ min. through an amplitude of up to half the width of a trough. The positions of the trough 10, nozzle(s) 16, and trough 20 may be adjusted by clamps 13, 19 and 22 respectively and the nozzle(s) 4 may be placed in different positions on the grid 5. The first nozzle(s) 4 may be single or multiple orifice. The troughs 10, 20 may have U- or channel-shaped cross-sections and parallel or tapered sides. The liquids may be unsaturated polyesters which may be thixotropic. Each reservoir 1 may contain a polyester differing in colour to that in another. The moulds may be flat trays or polythene tubes so that rods or sheets suitable for being cut and machined into patterned polyester button blanks may be produced. A longer third trough may be placed below the trough 10 to carry liquid providing a background colour for the pattern produced on the trough 10.
Patent GB-934645-A (GB)
Title: Improvements in or relating to a process of producing refined molten iron and producing alloy steel therefrom
IPC: C21C5/00
Filed: 1961-10-06
Abstract: Molten iron is refined in a vessel, such as a converter to which may be added steel scrap and/or iron ore, by an oxygen blowing process comprising first inserting a lance vertically within the vessel with the lower end 6 to 80 inches above the slag cover on the molten iron and vertically blowing oxygen, e.g. at pressure of 120-175 p.s.i., through the slag on to and below the bath surface at the central portion to effect oxidation of carbon and impurities in the iron until the carbon content is reduced to 0.06 to 0.20% then, with the vessel tilted away from the vertical to enlarge the surface are of the bath and with the lance submerged at an acute angle, introducing oxygen without entrained air into the molten iron at a rate of flow less than the vertical flow, e.g. by blowing at pressure of 60-120 p.s.i., to permit submerged inclusions to rise to the slag cover until the carbon content of the iron is not more than 0.035%; the final nitrogen content is preferably less than 0.006%.  The bath temperature is preferably maintained at 2875 DEG  to 2915 DEG F. and burnt lime or fluorspar may be added during refining.  After decanting the slag, the resulting pure iron may be alloyed by adding alloying constituents, such as ferrosilicon and ferro-manganese, to the molten iron in the vessel, which is then rocked, or by pouring the pure iron into a ladle containing the alloying constituents, prior to pouring the resulting alloy into ingot moulds.  A silicon steel alloy for processing into grain oriented strip or sheet may be produced containing 2.5 to 4.0% Si, and 0.035 to 0.10% Mn.  Such an alloy may also contain 0.035% max. S, 0.005-0.02% P, 0.05% max. Al, 0.05-0.3% Cu, 0.03-0.15% Ni, 0.005-0.02% Sn, besides Si, C, Mn and balance Fe.  Specifications 442,211, 713,034, 848,512, U.S.A. Specifications 1,965,559, 2,580,164 and 2,800,631 are referred to.
Patent GB-430036-A (GB)
Title: Improvements in and relating to the production of refractory material and bodies
IPC: C04B35/42
Filed: 1933-12-22
Abstract: Refractory furnace linings, bricks, &c. are made by intimately mixing dry hydraulic cement, e.g. aluminous cement, and other materials, e.g. chromite and calcined magnesite or dolomite, adapted to provide respectively sesquioxide and protoxide for producing a magnesium-containing spinel composition, adding water to render the mixture plastic, applying to the furnace or forming into the required shapes, and, after the cement has hardened, heated to ordinary metallurgical furnace temperatures.  A suitable composition comprises substantially equal parts by weight of chromite, calcined magnesite and aluminous cement.  The materials are all finely ground to pass a 100 mesh screen. Refractory aggregate may be added.  This may be provided for by taking as the starting materials three parts of chromite, three parts of calcined magnesite and one part of aluminous cement, and breaking up the first two materials so that only one-third of each will pass the 100 mesh screen, the remaining two-thirds being of graduated coarseness up to half inch size.
Patent GB-947877-A (GB)
Title: Improvements in or relating to inflation valves
Inventor: FRANKLAND PERCIVAL GERALD
IPC: F16K15/20
Filed: 1960-10-21
Abstract: 947,877. Valves. WATER KIDD CO. Ltd. Oct. 19, 1961 [Oct. 21, 1960], No. 36139/60. Heading F2V. An inflation valve has a two part body 1, 7, the latter incorporating a mouthpiece 8 within which is slidable an element 17 supporting a flexible closure-member 16 which is seated against a body shoulder 18<SP>1</SP> by a spring-loaded spider 11; the element 17 embodies one or more air-conducting passages or grooves. The member 16 is readily unseated by lung pressure or by manually depressing the element 17. The mouthpiece is provided with a rubber cover 19 secured to the body by an integral rubber strip 20. The valve is easily dismantled for cleaning.
Patent GB-927937-A (GB)
Title: Electro-hydraulic valve
Inventor: GERWIG HARVEY FREDERICK
IPC: F15B13/043
Filed: 1959-10-26
Abstract: 927,937. Fluid-pressure servomotor control systems. WESTON HYDRAULICS Ltd. Oct. 26, 1959, No. 36248/59. Class 135. Electric signals rotate a motor 83, Fig. 3, against a torque tube 76 to move a flapper 65, Fig. 1, between two nozzles 55, 56 controlling the exhaust at 17 of fluid from two chambers 37, 38 at the ends of a piston valve 31, 32 and supplied with fluid from inlet 5 via a groove 14, Fig. 4, in liner 9, filters and throttles 43, 44 and passages 45, 46, the piston valve being connected via follow up centralizing springs 66, 67 to the lower end 65 of the flapper. Movement of valve 31, 32 allows inlet pressure, to pass from groove 14, groove ports 15, 16, and ports 24, 27 in liner 19 to one of the motor ports 7, 8, the other being opened to exhaust via port 28 in liner 19. The piston valve is formed in two halves 31, 32 which abut at 34, 36 when pressure is exerted on their ends, but which spring apart under springs 66, 67 when the end pressures fail to open the ports 7, 8 to exhaust.
Patent GB-411056-A (GB)
Title: Improvements in or relating to resilient mountings for out-board motors
IPC: B63H20/06
Filed: 1933-12-27
Abstract: 411,056. Out-board motors. FICHTEL & SACHS AKT.-GES., Schweinfurt, Germany. Dec. 27, 1933, No. 36341. Convention date, Dec. 23, 1932. [Class 114.] In out-board motors with resilient supporting means indiarubber or like material is provided which encloses the member to be supported and is surrounded by the supporting member. Where the motor unit 13 is mounted at the side of the vessel on a supporting tube 12 there is employed between it and its brackets 10 a spherical rubber buffer which may or may not have hollows therein. The end of the tube 12 where it is connected to the engine member is similarly supported by flanged rubbers 15, 16 (Fig. 3). The tubular member 12 is held by a bayonet type joint 18 and can be detached by a longitudinal movement against a spring 19. In a modification for an out-board motor at the stern of the vessel the depending vertical casing 28 has bushes 30 between which and the supporting brackets 29 are interposed rubber rings 25, 26. If desired these rubbers may be in two parts and are bolted together.
Patent GB-1156578-A (GB)
Title: A head-up viewing system
Inventor: SCHAEFER CARL FRANCIS
IPC: G02B27/00
Filed: 1967-08-08
Abstract: 1, 156, 578. Optical viewing systems. UNITED AIRCRAFT CORP. Aug.8, 1967 [Sept. 19, 1966], No.36401/67. Heading G2J. [Also in Division H1] An aplanatic optical system providing undistorted head-up collimated viewing of objects off-set from the line of sight comprises a curved window 26 of transparent regions 28, 50 separated by a semisilvered layer 30 of different curvature to that of the outer surfaces 36, 52, such that region 28 is a negative lens backed by a positive partial mirror 30, an image of off-axis images, such as the cathode ray tube screen 38 thus being directed to the observer 46 in super-position with the scene observed through the window. Outer surfaces 36, 52 may have non-reflective coatings and a wedgeshaped formation 48 of the transparent wall of tube 24 reduces astigmatism. Window 26 may be of spherical, aspherical, or cylindrical form.
Patent GB-919429-A (GB)
Title: Refrigerators
IPC: F25D29/00
Filed: 1961-10-11
Abstract: 919,429. Refrigerating systems. GENERAL MOTORS CORPORATION. Oct. 11, 1961 [Oct. 24, 1960], No. 36472/61. Class 29. In a refrigerating system including a compressor 54 and a condenser 84, an upwardly elongated liquid refrigerant container 96 has an inlet 98 intermediate its upper and lower ends connected to the compressor outlet 82 and has an upper outlet connected to the condenser inlet. As shown, the refrigerant container 96 is an upright cylinder closed at the lower end, the dimensions of the container and of a pipe 121 connecting the compressor outlet to the container inlet being given. The compressor is a two-stage unit with an inter-stage cooler 76 for the refrigerant. From the outlet of the condenser 84 refrigerant passes successively through a filter-dryer 131, a capillary tube 133, an evaporator 30 in a freezer compartment, an evaporator 42 in a cooling compartment, an accumulator 50 also in the cooling compartment, and back to the compressor first stage. The upper part of the container 96 may contain baffles with staggered openings in them (Fig. 3, not shown). An absorbent such as silica gel or activated alumina may be included in the container.
Patent GB-1181006-A (GB)
Title: Improvements in Read Heads for Automatic Document Reading Apparatus
Inventor: STREET LESLIE JOHN
IPC: G06K7/10
Filed: 1967-08-09
Abstract: 1,181,006. Sensing records. PARNALL & SONS Ltd. 22 July, 1968 [9 Aug., 1967], No. 36499/67. Heading G4M. A document 5 on a drum 6 is sensed by a plurality of light sensitive elements 12 disposed between respective pairs of adjacent flat screens 7 which extend at right-angles to the longitudinal axis of a cylindrical lens 4. The document may be illuminated by sources 13 and cylindrical condenser lenses 14. The arrangement reduces cross-talk between elements 12 and is more sensitive to line markings parallel to the longitudinal axis of lens 4 than to randomly-oriented marks.
Patent GB-1100083-A (GB)
Title: Improvements in and relating to tube walls strengthened by tie bars
IPC: F22B37/20
Filed: 1966-08-16
Abstract: 1,100,083. Tube walls. BABCOCK & WILCOX CO. 16 Aug., 1966 [19 Aug., 1965], No. 36539/66. Heading F4B. Combustion chamber wall 10, formed of boiler tubes 12 joined by intermediate membrane bars 13, is provided with horizontal rows of aligned pairs of U-shaped lugs 38, between which tie bars 16 are inserted, the bars 16 being retained in place by removable locking pins 40 inserted through the aligned lugs 38. The tie bars 16 are secured to reinforcing buckstays 18 through lugs 22 and buckstay brackets 20. At their ends, each tie bar 16 is pivotably connected to the buckstay of an adjacent wall (Fig. 1) through corner brackets 30, links 26 and plates (24) welded to the buckstays, to allow relative expansion of the tube walls and the buckstays. Metallic filler bars (36, Fig. 5) may be welded between adjacent tubes 12 to provide a flat bearing surface for the tie bars.
Patent GB-801254-A (GB)
Title: Improvements in or relating to d.c. amplifiers
Inventor: URRY DENIS EDWARD
IPC: H03F3/36
Filed: 1955-12-21
Abstract: 801,254. Automatic amplitude control systems. RANK CINTEL, Ltd. Dec. 21, 1956 [Dec. 21, 1955], No. 36592/55. Class 38 (4). [Also in Group XL (c)] A zero-frequency amplifier comprises two channels, capable of providing equal gain, used alternately, wherein the D.C. level in either channel is determined and corrected during the time the other is operating. As shown, the input 1 is fed to cathode followers 2 in the two channels A, B, each channel comprising three D.C. amplifiers 6, 7, 8 in cascade. The output 10 is selected by means of a circuit 9 alternately from each channel depending on the polarity of a 50: 50 square wave fed to terminal 11. Shortly after channel A ceases to function, the input of amplifier 6 of channel B, which may be a cathode-coupled pair, is earthed by relay 3. The output of amplifier 8 is now compared with a reference level in circuit 12 and a correction voltage generated by circuit 13, which is rendered operative by a pulse at terminal 14, is fed to amplifier 6. Relay 3 is now released and the outputs of the two channels are compared by circuit 15, any difference being corrected by adjustment of gain of amplifier 8 by means of the control signal generator 16, rendered operative by a pulse at terminal 17. The square wave 11 now changes polarity causing the output to be taken from channel B while any drift in channel A is being corrected. Channel A has fixed or manually variable gain. The control pulses may have a low frequency and may be generated by relay circuits, but the 50: 50 square wave which must have a fast transition should be generated electronically.
Patent GB-765379-A (GB)
Title: Code converter
IPC: H03M5/00
Filed: 1954-12-17
Abstract: 765,379. Electric selective signalling systems. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 17, 1954 [Dec. 21, 1953], No. 36631/54. Class 40 (1). In an apparatus for converting a plurality of component binary digit (bit) signals into an output signal representing the combination of bits, e.g. in electronic computing, wherein each digit of a number expressed in the decimal system is represented by four bits, two sets of stators 19, 19a, and rotors 16, are positioned in parallel planes, the rotors being attached to a common shaft 15 which is continuously rotated. Brushes 11, 12, 13, 14, corresponding to bits 1, 2, 4, 8, respectively, consisting of flexible, magnetic fingers, are fixed to the rotors 16 and are so arranged that they pass any fixed angular position in the order of 11 first, 12 second, 13 third, and 14 fourth. Each of the stators 19, 19a, has a set-up or front side, shown in Fig. 1, and a normal or back side, and carries contacts 17, 18, and 17<SP>1</SP>, 18<SP>1</SP>, respectively, the contacts on the normal side being shown in dotted lines. All contacts 17 are connected by loops 17a, contacts 18 by loops 18a, and contacts 171 by loops 17b, each of the ten contacts 181 being connected successively to one of the points 24 which are each connected to an output pulse reader R. An end contact 17 is connected by a conductor 25 to an end contact 17<SP>1</SP>, and the contact 18 on the set-up side of stator 19 is connected to B+. Brushes 11, 12, 13, 14, co-operate with contacts 18<SP>1</SP>, 17, 17<SP>1</SP>, and 18, respectively. Each stator 19, 19a, is provided with an aperture 20 with inclined surfaces 21 on both sides of the stator, Fig. 5, and on the set-up side of the stator an electromagnet 22 is positioned to extend over the aperture, a permanent magnet 23 being similarly positioned on the normal side. Each brush passes an aperture 20 during each revolution of the rotor 16 and if the electromagnet 22 is energized during the passage of a brush by the aperture that brush will be pulled to the set-up side of its stator and will ride on the set-up side for one revolution, the permanent magnet 23 causing the brush to ride on the normal side if the electromagnet is not energized. The electromagnet is energized by pulses from an auxiliary apparatus, e.g. a binary code card reader operating in timed relation to the movement of the brushes, the energizing of the electromagnets being controlled by the code card reader sensing or not sensing a binary perforation in the card at the respective binary times. The contacts are so arranged that for each binary code combination at the input, a circuit is completed between B + and only one of the points 24 corresponding to decimal units 0 to 9, during each revolution, to provide the corresponding output pulse at the pulse reader R. In an alternative arrangement, Fig. 6 (not shown), which is a planar counterpart of the rotary arrangement, the contacts are so arranged that the brushes move in vertical alignment instead of following one another.