baber/WOPTO huggingface dataset:
Patent GB-639115-A (GB)
Title: Improvements in or relating to cathode ray tubes
Inventor: FREEMAN GEORGE STANLEY PERCIVA
IPC: H01J31/58
Filed: 1945-01-04
Abstract: 639,115. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Jan. 4, 1945, No. 426. [Class 39 (i)] A cathode-ray tube comprises means for projecting a beam of electrons towards an annular space defined by electrodes 4, 5, Fig. 1, a strong longitudinal magnetic field is set up by coil 11 and a radial electric field is set up between electrodes 4, 5, and as a result the beam is progressively displaced around the annular space and finally impinges on a chargestorage target 10. Shields 12, 13a, 13b at either end of electrodes 4, 5. Shields 13a, 13b, or a wall coating collects secondaries emitted by target 10 when the latter is being charged up. By varying the potential difference between electrodes 4, 5, e.g. in accordance with a linear saw-tooth waveform, the beam traces out a circular arc or a complete circle on the target 10. The target 10 is discharged by a second electron beam from the same source as the charging beam or from a different source, this second beam can be used to reproduce the signals. The potentials are chosen so as to prevent the cross-section of the beam increasing as it passes through the annular space between electrodes 4, 5 and the magnetic field may be modulated by coil 11a in synchronism with the circular scan for the same purpose ; the anode 8 may serve to remove electrons with undesired transverse velocities as described in Specifications 542,496 and 558,962. The electrode 5 may be a small rod instead of a hollow cylinder. In a modification, Fig. 2 (not shown), the envelope of the device is formed as an annulus and solenoids are arranged inside the inner wall and outside the outer wall ; a separate solenoid surrounds the electron gun portion of the tube. In another modification, Fig. 3 (not shown), the electrodes 4, 5 are formed as surfaces of revolution having oppositely curved generating lines, preferably of hyperbolic form. Before passing between electrodes 4, 5, the beam is deflected by a pair of plates curved as described in Specification 542,219, or by a pair of deflecting coils before or after the electrodes 4, 5, so that the beam can be made to trace out a spiral path on the target 10. The voltage applied to the deflecting plates is also applied to electrodes 4, 5 to keep the potential of the path of the beam constant. In a further modification, Fig. 4, the charge storage target 10 of Fig. 1 is replaced by reflecting electrodes 35, 12 so that the beam follows a zig-zag path in the space between electrodes 4, 5, and finally impinges on collector electrode 36. This device can therefore afford a predetermined delay to a signal as described in Specification 541,301. The delay may be altered by varying the potential difference between electrodes 6, 7 and the delay may be increased by dividing electrodes 4, 5 into equally separated portions. Specifications 530,409, 552,389 and 560,457 are also referred to.
Patent GB-1455071-A (GB)
Title: Biological indicator and method for its production
IPC: C12Q1/02
Filed: 1974-01-04
Abstract: 1455071 Micro-organisms for testing sterility KOMBINAT MEDIZIN-UND LABORTECHNIK LEIPZIG VEB 4 Jan 1974 [5 Jan 1973] 00437/74 Addition to 1434767 Heading C6F A biological indicator for testing ethylene oxide sterilizers is prepared by separating micro-organisms, which have developed naturally in apathogenic spore earth, from their biotope by flotation using 1.5 ml liquid per gram of spore earth, and separating and drying the resulting germ suspension. The separation may be by filtration, the filtrate being then conducted to a bacterial filter, the germs retained by the bacterial filter being resuspended in a smaller amount of liquid which may be calculated to give a predetermined germ concentration. Separation may also be achieved by centrifuging and the sediment therefrom may be diluted or recentrifuged to give a desired germ concentration. Flotation may be achieved using a volatile (B.pt.<80‹C) liquid, the germ suspension being concentrated by evaporation, e.g. in vacuo. A rod of absorptive material may be dipped into the suspension, the uptake of germ suspension being determinable. The rod may then be dried and inserted in a plastics hose or inserted in a hose and then dried.
Patent GB-547704-A (GB)
Title: Improvements in or relating to devices for preparing messages for facsimile transmission
IPC: G08C21/00
Filed: 1941-01-14
Abstract: 547,704. Pantographic apparatus; facsimile telegraphy. CREED & CO., Ltd., THOMPSON, A. E., and SALMON, R. D. Jan. 14, 1941, No. 518. [Class 97 (iii)] [Also in Group XL] In a device for writing fascimile telegraph messages on tape a manually held stylus is mechanically connected with a recording pen by means of a pantographic arrangement and is adapted by appropriate movements to feed the tape forward in the intervals between writing of the separate characters of the message. The pantograph A, B, C, D is mounted on a fixed pivot 17, the arm B carrying a pen 13 by means of blade springs 19 and the arm D being connected by a universal joint to a stylus 16. The writing platform 22 is provided with apertures 23, 26 exposing a spring blade 24. When depressed by the stylus the spring blade closes electric contacts 25 energizing a magnet 41. The pen 13 has the cross-section shown in Fig. 3 in order to produce thicker vertical strokes than horizontal strokes whereby better transmission of the reproduced writing by the optical and photo-electric devices 1, 2, 4, 5, 6, 7 are obtained. A pin 47 in the path of the light rays cancels out variation in intensity of the image produced by the optical system. In operation, the stylus 16 is manually pressed upon the blade spring 24 and moved within the limits of the aperture 23 to form the character required, thus imparting a corresponding but smaller movement to the pen 13. The closure of the contacts 25 by the pressure of the stylus energizes the magnet 41 causing its armature 39 to press the pen upon the paper. Before each character is written the stylus is moved into the aperture 26, this movement bringing the pen over an ink well 42 and by closure of the contacts 25 dipping the pen into the ink well. This movement also causes an arm 37 carried by the arm A to rock a toothed lever 27 and pawl 37 in order to feed forward the paper prior to writing the next character. During the return of the stylus to the aperture 23 and its further movement therein to write a character, a pin 20 returns the toothed lever 27 and pawl 31 a distance corresponding to the distance required between adjacent characters plus the width of the character inscribed. The tape is fed forward by this total distance prior to the writing of the next character. By moving the stylus from the hole 26 to a stop 43 and back, the tape may be fed, between words, a distance of one letter space. Specification 543,023, [Group XL], is referred to.
Patent GB-345694-A (GB)
Title: A new or improved apparatus for impregnating wood with liquids
IPC: B27K3/10
Filed: 1930-01-06
Abstract: 345,694. Piercing wood. PFISTER, R., 315, East 77th Street, New York, U.S.A. Jan. 6, 1930, No. 528. [Class 145 (i).] A tool for impregnating timber or growing trees with preservative liquid comprises a shank with a blade extending therefrom and having longitudinal grooves for the passage of the liquid after the tool is driven into the wood. The tool comprises a solid shank 16, Figs. 1 and 2, integral with a blade 17, preferably of flattened cross section with slightly convex sides. The narrow edges 19 of the blade may converge towards the entering end, and both edges are provided with grooves 20, preferably increasing in depth from the point to the shank, into which they extend for a part of its length. The point of the too] is preferably formed with an extended and convexly curved cutting edge 21. A collar 22, Fig. 1, is fitted to the shank 16, and provided with one or more internal passages 23 in communication with the ends of the grooves 20. Hose pipes 25 are attached to the collar to supply the liquid under pressure to the passages 23. For use upon seasoned wood, the grooves may extend along the shank to the base of the blade only. The tool may be forced into the wood by means of a lever, screw or otherwise.
Patent GB-547910-A (GB)
Title: Process for concentrating gonadotropic hormones of the pituitary gland
IPC: A61K38/24
Filed: 1941-01-17
Abstract: 547,910. Hormones. SOCIETY OF CHEMICAL INDUSTRY IN BASLE. Jan. 17, 1941, No. 665. Convention date, Jan. 18, 1940. [Class 81 (i)] Gonadotropic hormones of the pituitary gland are concentrated by treating a solution of the hormone with a strong acid albumen-precipitant (other than a phenolic polynitro compound), e.g. sulphosalicylic or trichloracetic acid, separating the precipitate, removing excess of acid from the solution and precipitating the hormone by the addition of a phenolic polynitro compound such as picric or picrolonic acid and separating the hormone from the precipitant in known manner.
Patent GB-376654-A (GB)
Title: Process for producing alkali metal bisulphite or alkali metal sulphite solutions from waste liquors obtained by digesting pulp with alkali-sulphur compounds
IPC: D21C11/00
Filed: 1932-01-11
Abstract: Solutions of alkali metal sulphites or bisulphites are obtained from waste liquors resulting from the digestion of pulp with sulphate or sulphite lyes.  Organic compounds are first removed from the liquors by combustion and sulphides and thiosulphates removed in known manner as by roasting.  The residue, comprising sodium carbonate, sulphite, and sulphate is dissolved in water and divided into two predetermined parts.  To the one part is added sulphurous acid and calcium carbonate sufficient to convert all alkali metal salts into bisulphites. The other part of the solution is then added to precipitate soluble calcium salts from the treated solution with simultaneous conversion of its own alkali metal content to sulphite or bisulphite.  An example is furnished.  The final solution obtained, after dilution if necessary, may be used for digesting pulp.
Patent GB-1486132-A (GB)
Title: Diagnostic compositions and diagnostic instruments
IPC: C12Q1/54
Filed: 1975-01-08
Abstract: 1486132 Diagnostic compositions with chromagens SHIONOGI & CO Ltd 8 Jan 1975 [9 Jan 1974 8 March 1974] 802/75 Heading G1B A diagnostic composition comprises a chromagen which is a diamino-biphenyl derivative ( one amine group per ring in which at least one amine hydrogen atom is replaced by a C 1-4  alkyl group, together with a buffer and background adjusting dye. The chromagen preferably derives from benzidine, a tolidine, or a dianisidine. The corresponding non alkylated compound may also be present. The composition may also include a saccharide  oxidase, peroxidase, and a guaiac, and a surfactant and/or an agent for increasing viscosity (e.g. a protective colloid). The composition may be carried on a tibulous, porous support, e.g. filter paper, sintered glass or plastics and may be in the form of test strips. In use the composition or test strip is contacted with the sample to be diagnosed and any colour change is observed, and may be used to estimate the amount of e.g. saccharide in the sample.
Patent GB-491361-A (GB)
Title: Shaking machine for operating on moulds
IPC: A23G1/24
Filed: 1938-01-11
Abstract: 491,361. Shaking-machine for moulding chocolate &c. FAIRWEATHER, W. C. (Lehmann, F. B., (trading as Lehmann, J. M., [Firm of]).) Jan. 11, 1938, No. 848. [Class 87 (ii)] In shaking-machines, particularly for moulding chocolate, having magnetic plates or rails 1 for retaining moulds 5 on the shaking table 2, the plates or rails 1 are permanent magnets of nickel-aluminium steel. The moulds may be in an inverted or non-inverted position and are moved along the table 2 during shaking by conveyer chains having projections engaging the moulds. The table 2 is vibrated by gearing 3 with unbalanced weights. The non-inverted moulds are guided on and off the table by support rails 4, which at the exit end may have a sloping or curved surface. For inverted moulds, the magnetic rails are attached to the underside of a cover plate secured to the shaking table. At the entrance end a magnetic rail extension is pivotally, resiliently or otherwise attached to the magnetic rails and normally rests on a stop. The inverted moulds are released at the other end by non-magnetic rails which press the moulds down from the magnetic rails. Specification 392,658, [Group II], is referred to.
Patent GB-156781-A (GB)
Title: Improvements relating to apparatus for cutting diamonds
IPC: B24B9/16
Filed: 1921-01-07
Abstract: 156,781. Leperre, E. F. A. C. Jan. 9, 1920, [Convention date]. Gems, treating.-A device for use in cutting diamonds comprises means whereby the progress of the cutting is continuously under observation, and whereby the diamond may be separated automatically from the grindstone at any desired moment. Th,e diamond is carried by a holder 25 mounted in jaws 2 at the end of an arm 1, and is cut by means of a grindstone 26. The arm at its other end is hollow to receive an indicator 3 comprising a dial 3<1> and a needle movable over the dial and constituting an electric contact 39; a second contact 40 is provided at 0 on the dial. The needle is moved by a push-bar 3<2>, which may be placed vertically to contact with the work table 38, or, as shown, is moved by a slide 7 having an adjustable part 7' and slidable in guides 8, 8<1>. The slide has a groove therein receiving the end of a lever 10 mounted on a spindle 9 carrying two toothed wheels 5, 5<1> and acted upon by a spiral spring to hold the lever in contact with the slide. The wheels 5, 5<1> engage toothed sectors 11, pivoted to the arm at 27, 27<1> and having lower ends 11<1> resting on the work table; springs 33 are provided acting on the sectors. When, by depression of the arm, the needle contacts with the contact 40, batteries 32, 32<1> send a current through a solenoid 23 and move the core 20 against the action of a copper spring 21. This movement of the core withdraws a pawl 18, carried by the core, from a recess in a piston 15 disposed in a sleeve 12, and allows the piston to move downwards under the action of a spring 16, bringing the piston into contact with a plate 30 and lifting the arm, and with it the diamond, away from the grindstone. The point at which the piston operates is regulated by turning the dial so that the division thereon corresponding to the required amount to be removed from the diamond is brought under the needle before commencing the cutting operation.
Patent GB-691563-A (GB)
Title: Improvements in or relating to the treatment of phosphors
IPC: C09K11/73
Filed: 1951-01-11
Abstract: 691,563. Luminescent materials. THORN ELECTRICAL INDUSTRIES, Ltd. Jan. 11, 1951 [March 10, 1950], No. 862/51. Class 39(i). The brightness and adherence of a halophosphate phosphor are improved by washing it with a solution of a non-oxidising acid of pH value of 6 or less, e.g. hydrochloric acid before mixing with a basic dispersing agent, e.g. a longchain amine. If an acid dispersing agent is to be used, e.g. oleic or other fatty acid and ethyl cellulose in xylol, an alkaline solution is added to the acid treated phosphor, e.g. ammonium hydroxide and rinsed with water until its pH value is about 8. Other dispersing agents exemplified are nitrocellulose with butyl acetate or amyl acetate. The proportions necessary for the desired pH values are included in the Specification.
Patent GB-366687-A (GB)
Title: Improvements in hinges or pivots
IPC: E05D7/082
Filed: 1931-01-10
Abstract: 366,687. Friction pivots. PARKES, S. R., Pretoria Works, New Road, Willenhall, Staffordshire. Jan. 10, 1931, No. 897. [Class 65 (ii).] In a pivot for horizontally pivoted windows and the like, of the type in which members fixed to the window and the frame are spring-pressed into frictional contact to retain the window in any position, one of these members is a block slid-' able axially in one of the fixing plates while the other member is constituted by the other fixing plate. In the arrangement shown in sectional plan in Fig. 3, the fixing plate 1 on the frame carries the pin 2, which bears in a friction block 3 carried by the other fixing plate 7 on the window. The block 3 is shaped so as not to be rotatable in the plate 7, but is free to slide in the direction of the pivot axis, being forced against the plate 1 by the head of the pivot pin under the action of a spring 4. The spring bears against a washer 5 held by a peg 6, and the head of the pin may be replaced by a similar arrangement. The face of the washer is partly pierced to form two projections between which the peg 6 is located. The fixing plates may be extended to bring the pivot axis in front of the window, and one or both may have extensions at right-angles for face fixing.
Patent GB-232312-A (GB)
Title: Improvements in spring seats, mattresses and the like
IPC: A47C7/24
Filed: 1924-01-12
Abstract: 232,312. Saxon, R., and Wright, C. J. Jan. 12, 1924. Wire spring-A bow spring for use in a spring seat, mattress, cushion, &c. and adapted to produce resilience at one or more edges as well as at the centre portion thereof comprises a bow A, Fig. 1, of round or flat wire shaped to overrun the point of mounting at one end and secured to a frame F by rods &c. passed through coils B, D formed on its ends, the coil B having a projection C adapted to engage a stop on the frame F to hold the bow up. The projection C may be extended to the coil D to permit the frame F to be dispensed with, or its extension may form a supplementary bow or a part of a back rest spring. The coil D may have a projection similar to C. Additional coils G, Fig. 3, may be provided, or two springs may be combined as shown in Fig. 6. In forming a seat, mattress, &c., the bow springs may be used in combination with a spring K, Fig. 2, provided with a restraining wire or spring B to form a unit, the wire or spring B being disposed between a loop D near an end loop G and the other end loop G, or between the loops D, Fig. 5. The end portions G. D, E may be made separately and secured together as at A to form the bow K, or parts may be united by rods through the loops. Other springs may be used to give local support. The bows and units may be arranged at right-angles to one another on a frame with the bows uppermost.
Patent HK-14591-A (HK)
Title: Process for making an imaging medium solution
Inventor: ATWELL DAVID L
IPC: B41M5/24
Filed: 1991-02-28
Abstract: A special process for making an imaging medium solution suitable for use in the formation of ablative imaging media such as video discs, microlithographic films, and chemical etch resist-type films. A thoroughly-mixed dye dispersion is filtered and added to a thoroughly mixed nitrocellulose solution, to form an imaging medium solution that is, in turn, nitrocellulose heated to a temperature of 50 DEG C for a time duration of at least one hour. After cooling to room temperature, the resultant imaging medium colloidal solution has a highly stabilized viscosity and can be used to form films of precise, uniform thicknesses.
Patent HK-35885-A (HK)
Title: Semiconductor device
Inventor: OTSUKA KANJI
IPC: H01L23/556
Filed: 1985-05-09
Abstract: The present invention relates to a semiconductor device having a semiconductor element which is sealed by a ceramic package, wherein a shielding member is provided near it from upper surface of the semiconductor element to shield the alpha-particles radiated from the package.
Patent HK-98189-A (HK)
Title: Measuring apparatus
Inventor: YOSHIZAWA MASAYUKI
IPC: H03M1/00
Filed: 1989-12-14
Abstract: An electronic thermometer is provided in which the number of pulses counted in a first count and the number of pulses counted in a second count are respectively proportional to the resistance of a reference resistance and that of a thermosensing element. When the first counted value is to be adjusted so as to realize the absolute value adjustment of the thermometer, the difference between the resistance of the thermosensing element and the resistance of the reference resistor is adjusted by varying the number of counts in a counter upon whose content the timing of the second count depends. Accordingly, the absolute value precision adjustment of the electronic thermometer is realized by providing an initial logic adjustment circuit in which the number of the first clock counts is appropriately varied.
Patent JP-S61161604-A (JP)
Inventor: ASANUMA TADASHI
IPC: H01B5/16
Filed: 1985-01-07
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S62159740-A (JP)
Title: Engine with pressure exchange type supercharger
Inventor: NAKAGAMI TATSURO
IPC: F02D23/00
Filed: 1986-01-04
Abstract: PURPOSE:To reduce an amount of an exhausted noxious component, by a method wherein, based on an output from a stoichio O2 sensor, an air-fuel ratio at the inlet of a catalyst device in an operation region needing purification of exhaust gas, and, based on an output from a linear air-fuel ratio sensor, a combustion air-fuel ratio is controlled in other operation region. CONSTITUTION:In a pressure conversion type supercharger 20, an engine-driven cylindrical rotor 24 is disposed in a cylindrical casing 22 located between an intake air passage 12 and exhaust passages 16 and 42, and high pressure energy which high pressure exhaust gas posses is transmitted to intake air in the rotor 24 to increase a pressure. A three-dimensional catalyst device 44 is located in an exhaust passage 42 on the downstream side. In this case, a stoichio O2 sensor 56 is situated in the exhaust passage 16 on the upper stream side, and a linear air-fuel ratio sensor 58 in the exhaust passage 42 on the downstream side. Based on an output from the sensor 56, an air-fuel ratio at the outlet of a catalyst device 44 is controlled in a low rotation low load operation region needing purification of exhaust gas, and based on an output from the sensor 58, a combustion air-fuel ratio is controlled in other operation region.
Patent JP-S5493495-A (JP)
Title: Bus supporter
Inventor: KURODA NAGAHARU
IPC: H02G5/00
Filed: 1978-01-06
Abstract: PURPOSE: To make a work easy to install a branch conductor, without reducing a capacity of conduction, by supporting the bus piece and the conductor in one unit at the tightening part, with a protruding part provided in the outside of a pair of bus pieces and the conductor arranged in the inside.  
     CONSTITUTION: The constitution of a pair of bus pieces 22, 23 comprises protruding parts 22A, 23A, provided at both ends and extended to outside, and a branch conductor 24, arranged in place between the insides of the bus pieces with said protruding parts not facing. The branch conductor 24 is tightened to a bus 21 by inserting a tightening bolt into a through hole 25 provided in the bus pieces 22, 23 and the branch conductor 24. With a holder pad 29 provided between the bus pieces 22, 23, a support insulator is held. In this construction, the branch conductor 24 can be easily installed without reducing a capacity of conduction. 
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