baber/WOPTO huggingface dataset:
Patent GB-1144134-A (GB)
Title: Optical multi-purpose measuring instrument
IPC: G01D5/38
Filed: 1966-04-19
Abstract: 1,144,134. Optical portion finding. ERNST LEITZ G.m.b.H. 19 April, 1966 [24 April, 1965; 18 Aug., 1965], No. 17179/66. Heading H4D. [Also in Division G2] Apparatus for measuring the displacement of an object comprises a light source 10, a movable member 12 defining two scanning marks 112a, 112b, at an angle to one another, an image of which is projected via a beam splitter 13 and an objective 14 on to a reflecting hemisphere 100 movable with the object and reflected back to the beam splitter 13 to be reimaged on a reference carrier 16 bearing indices 115a, 115b which intersect at the same angle as marks 112a, 112b. The member 112 and the reference carrier 16 are oscillated transversely of the optical axis at frequencies f1, f2 respectively. Superimposed images of the member 12 and carrier 16 are passed to an eyepiece 18 and a photo-electric cell 19 connected to evaluation devices 113, 114 which react to signals (2n+1)f1 and (2n + 1)f2 respectively. A lateral displacement of the reflector 100 causes movement of the scanning mark images relative to the reference carrier 16. As shown the scanning marks are provided by apertures in a diaphragm which are normal to one another. In a modification, Fig. 2, (not shown) they are provided by narrow mirrors (204, 205) in discs (215, 216) which are angularly adjustable with respect to one another and the reference mark carrier (220) consists of two discs (217, 218) which are adjustable to the same relative angular orientation, the discs (217, 218) carrying reference lines (208, 209). The mirrors (204, 205) have different reflecting qualities, e.g. one reflects green and the other red light, and the final output is separated by a prism (221) into the two components which are passed to individual photo-cells (212, 213). The scanning marks are illuminated via a polarizer (200), condenser (202), beam splitter (203) and quarter wave plate (203<SP>1</SP>), another quarter wave plate (203<SP>11</SP>) being positioned between the beam splitter (203) and the objective (206). In a further form the photo-electric pick-up is incorporated in the reference mark carrier.
Patent GB-804393-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H04B1/16
Filed: 1956-06-04
Abstract: 804,393. Transistor radio receiving circuits; multiplex radio signalling. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 4, 1956 [June 6, 1955], No. 17186/56. Classes 40 (5) and 40 (6). In a radio receiver, at least one transistor amplifying stage 14, Fig. 1, is supplied with energy derived from a second radio high-frequency transmission. The circuit 1 may be tuned to any desired frequency, while circuit 6 is tuned to a strong transmission to provide as large an operating potential as possible. Highfrequency energy from circuit 6 is rectified and smoothed by elements 7, 8 and fed to the emitter-collector path of transistor 14. The input signal from circuit 1 is demodulated by diode 2 and elements 3, 4 and applied to the baseemitter circuit of transistor 14 to give an amplified signal in earphones 9. By reversing a switch 10 the emitter-collector path of transistor 14 is shorted and the demodulated signal from tuned circuit 6 is fed over capacitor 30 to the earphones 9. Multiplex signalling. A number of receivers, Fig. 2, may be employed, each carried by a person in a hall and a number of speech channels are provided as modulations on auxiliary channels on a main carrier. Circuit 1 is tuned to the desired auxiliary carrier, the main carrier being received by circuit 6. This circuit not only supplies the operating power for audio stage 11 but also feeds rectified but unsmoothed R.F. to the I.F. transformer primary 16 in the collector lead of mixer transistor 21 to develop the auxiliary carrier and its sideband, which is then demodulated by diode 2. By tuning circuit 1 together with the tuning of transformer 16, 17 another auxiliary carrier may be selected to give, after demodulation, another speech output which is amplified by audio stage 11.
Patent GB-1399178-A (GB)
Title: Image display system
IPC: H04N7/00
Filed: 1973-04-10
Abstract: 1399178 Colour television MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 10 April 1973 [12 April 1972] 17210/73 Heading H4F A coloured image relating to the information on a card or film 55 is produced on a flying spot scanner 52 having a coloured filter 53 formed of red, green and blue stripes or dots placed in front of its phosphorescent screen 51, by feeding back the output of photo-detector 56 to control the intensity of the light beam from scanner 52. The fedback signal may be directly or inversely proportional to the output of photo-detector 56. If an inverse signal is fed back, and film 55 is a negative, scanner 52 will reproduce a positive image, e.g. a cyan portion of film 55 will block red light thus causing the points on screen 51 corresponding to red portions of filter 53 to glow more brightly, blue and green light being passed by this portion of the film 55, thus reducing the intensities of points on screen 51 corresponding to blue and green portions of filter 53, thus producing a red portion on the image viewed through filter 53. To reduce flicker without reducing resolution, screen 51 may be formed of a mixture of laminations of two phosphors, one of which has a short persistence time and is not sensed by the human eye, and the other of which has a long persistence time, this phosphor causing a constant D.C. component in the output of photo-detector 56. The signal from photo-detector 56 may also be fed to a separate display from 59 in which case a colour synchronizing signal may be produced by a second photo-detector which is sensitive only to red light. Filter 53 may be provided on the inside of the faceplate of scanner 52( Figs. 9a, 9b, not shown), the fluorescent screen being on the inner side of the filter 53. If positive feed-back is employed a D.C. input may be supplied to photo-detector 56 to ensure a minimum intensity of scanner 52 even if no light is incident on photo.detector 56.
Patent GB-403387-A (GB)
Title: Improvements in or relating to garden seats and the like
IPC: A47C4/34
Filed: 1932-06-17
Abstract: 403,387. Folding chairs. WELLS, E. G., and HOKANSON, A. E., c/o X Chair Patents Co., Hayes, Middlesex. June 17,1932, No. 17226. [Class 52 (ii).] A folding seat comprises a pair of collapsable structures each comprising a number of independently collapsable X-frames, and a seating surface of flexible material such as canvas or fabric supported on each pair of the X-frames. The seat comprises, for instance, a pair of end frames consisting of uprights 10, 11, cross bars 12, and arm rests 13. The end frames are connected at the front by a pair of X-frames 15, 16, the upper ends of the members 15 being connected, by links 18, to a central upright 19. Similar X-frames connect the back members of the end frames. A canvas or fabric back 29 is stretched across supporting members 27, 28, and the seat canvas is secured to members connecting the X-frame members 16 to the corresponding members of the rear X-frames, and to a member 23 bridging the central uprights 19, 21. One pair of X-frames may be collapsed independently of the other pair, as shown in Fig. 2. In a modified form, independent seats are supported on cross members at the top of each X-frame, and the central uprights carry an arm-rest. Specification 324,668, [Class 52 (ii), Furniture for sitting &c. upon], is referred to.
Patent GB-326720-A (GB)
Title: An improved navigational plotting instrument
Filed: 1929-06-05
Abstract: 326,720. Clissold, P. C. H. June 5, 1929. Protractors.-An instrument for use with a chart for finding, for example, the difference between observed and deadreckoning positions is made in part as a protractor A and in part as a graduated ruler B the ruler extending at right-angles to the base of the protractor with its graduated edge passing through the centre C of the protractor graduations. The base of the protractor is marked with a linear scale.
Patent GB-193773-A (GB)
Title: Improvements in self-indicating weighing machines
IPC: G01G1/00
Filed: 1922-06-23
Abstract: 193,773. Berkel, C. F. M. van, and Maatschappij tot vervaardiging van- Snijmachines volgens van Berkel's Patent en van Andere Werktuigen. June 23, 1922. Pendulum-weight apparatus.-In a self-indicating weighing-machine of the pendulumweight type, the weighbeam is fulcrumed above the indicator and connected so as to actuate the indicator without lateral thrust on the knifeedge bearing. The arm of the weigh-beam 1 is connected to an eccentric 15, pivoted on knife edges 10 by means of a downwardly depending rod 16 attached to a stirrup 17. pivotally mounted on the arm of the weigh-beam, and to a flexible steelband 18, which passes over the eccentric and is secured to it at a point on the opposite side. The knife-edge bearings 8 of the pivotal support of the pendulum-weight and indicator are carried by a bracket 7, which is secured near the lower end of the casing 4 and also serves to support the dash-pot 14. In the modification shown in Fig. 5, the counter-weight 12 has an externally projecting arm 25 with an upwardly disposed knife-edge and the rod depending from the weigh-beam has a bearing 27 for the upwardly disposed knife. edge and is formed with a weight 28.
Patent GB-1281618-A (GB)
Title: Enzyme for lysis of yeast cell walls
Inventor: KITAMURA KUNPEI
IPC: C12N9/24
Filed: 1970-04-11
Abstract: 1281618 Zymolyase KIRIN BEER KK 11  April 1970 17338/70 Heading C3H [Also in Division C6] Zymolyase, an enzyme capable of lysing yeast cell walls, is produced by culture of the microorganism Arthrobacter luteus nov. sp. in a medium which contains biotin and a glucose polymer having a #-1,3 linkage. Preferably the initial pH of the medium is alkaline, and is maintained at 5À0-9À5 during culture. Suitable glucose polymers are laminaribiose, laminarin, pachyman. Glucanase may be produced by the microorganism simultaneously, and the zymolyase may be used in the form of a mixture with glucanase, or with a proteinase. The enzyme culture medium may contain yeast cells or yeast cell walls, and the culture may be at 10-45‹ C. for 8-120 hours.
Patent GB-1310383-A (GB)
Title: Plastics sheet structure and the method of and apparatus for fabri cating the same
IPC: B29C61/00
Filed: 1970-04-13
Abstract: 1310383 Sheet forming UNIROYAL Ltd 13 April 1970 [14 April 1969] 17358/70 Heading B5A A structure, e.g. a motor car panel, Fig. 1, is formed from two plastics sheets, e.g. an ABS/ vinyl blend, by preheating the sheets 1 and 2 in an oven, Fig. 2, not shown, having heating lamps (7), and draping them over two relatively movable mould members 18, 19 having vacuum connections 17, and then fusing the sheets together when they are moved into abutment by local heaters 30, e.g. hot oil conduits, dielectric or electric heating elements, to form a groove 3 and internal flange 1a, 2a, the moulds being moved by a piston and cylinder device 12. The moulds are subsequently cooled, e.g. by passing brine through conduits 30, before removal of the structure and filling with a plastics foam 4. The sheets can have a different colouring or texture. In Fig. 6, not shown, a piping section (13) which can be of plastics, or a woven cloth is inserted between the sheets prior to fusion. The structure in Figs. 9 and 10, not shown, is formed from a single sheet folded at (41). In Fig. 12, not shown, a third relatively movable mould (111) is placed between the moulds (110), (110a). In Fig. 13, not shown, an electrode is lowered between the moulds before they are moved into contact to heat the abutting areas of the sheets.
Patent GB-562687-A (GB)
Title: Improvements in or relating to addressing and listing machines
IPC: B41L47/18
Filed: 1942-12-07
Abstract: 562,687. Addressing &c. machines. ADREMA, Ltd., and MOON, W. R. H. Dec. 7,1942, No. 17371. [Class 100 (ii)] A receiver for used printing plates in an addressing or like series printing machine and adapted to take the place of the usual receiver when only a small number of plates are repeatedly used, comprises a small tray 13 carried by a box-like member 10 which is substantially the size of the usual receiver and is substituted therefor in the machine. The tray 13 is provided with a rearwardly extending arm 20 of inverted U form pivoted at 16 to the member 10 and held in plate receiving position by a spring 22, in which a stop pad 27 on the arm engages the underside of the top of the member 10. By pressing on a forward extension 14 of the tray 13, it is tilted about the pivot 16 so that the plates may be readily removed. A spring-urged backing plate 32 is provided for the plates.
Patent GB-238065-A (GB)
Title: Improved anti-tipping mechanism for mechanical ladders
IPC: E06C5/36
Filed: 1924-07-21
Abstract: 238,065. Bachert, A., and Bachert, K., (trading as Metz Feuerwehrgerõte-Fabrik, C.). July 21, 1924. Gearing for stopping and starting machinery. -To prevent a portable fire escape or like ladder from overbalancing, the driving-mechanism is automatically disengaged by a spring-loaded device which is displaced when the weight of the ladder or a resistance set up, for example, by the ladder striking an obstacle causes a certain stress. The ladder is erected by chain and quadrant driven by gearing 17, which engages an axially-movable worm 18, engaging by a thrust bearing 22 a pivoted lever 25, adapted to operate a knee-lever 16, against the pressure of a spring 28. When the torque exerted by the gearing 17 on the worm 18 overcomes the pressure of the spring 28, the worm 18 moves axially and operates the lever 25 and the lever 16 which disengages the gearings by mechanical, electrical, hydraulic or pneumatic means. In a modification of the invention, the stress in the gearing causes axial movement of one member of an obliquely toothed clutch which operates the spring-loaded pivoted lever. The gearing drives a friction wheel which turns the ladder or moves any other part of the machine.
Patent GB-146218-A (GB)
Title: Process for the production of a solid non hygroscopic iron-salt
IPC: C01G49/00
Filed: 1920-06-26
Abstract: The compound FeSO4Cl.6H2O which is suitable for tanning is obtained by boiling down its solution under reduced pressure, until the water content corresponds with the above formula and then cooling and, if necessary, inoculating.  The solution may be obtained as described in the parent Specification or in any other manner so long as it contains iron, sulphate radical, and chlorine in the above proportions.  Boiling down can be avoided by bringing together ferric chloride, ferric sulphate, and water or ferric chloride, sulphuric acid, and water in the correct proportions, hydrochloric acid being evolved in the second case.
Patent GB-110825-A (GB)
Title: Improvements in and relating to Natural Draught Regenerative Ovens, and Burners therefor.
Inventor: HALKETT RALPH
IPC: F28D17/02
Filed: 1916-12-05
Abstract: 110,825. Halkett, R. Dec. 5, 1916. Metal-heating furnaces.---In a furnace or oven for the heat treatment of steel &c., the air for secondary combustion is led to flues at the middle of the furnace, and passes thence to side combustion chambers, and the waste gases are exhausted through flues in the walls of the heating-chamber having their inlet ports near the door opening. Burners E are provided at both sides of the furnace, and their nozzles are sealed to the baseplate P to prevent entrance of air at this point Combustion takes place in vertical flues or combustion chambers G, and the products pass to the heating-chamber H through side ports, and through flues F<2> beneath the hearth leading to an end port. Air for secondary combustion is supplied through flues F, F', the latter of which is situated at the middle of the furnace, and communicates with the combustion chambers G by horizontal passages. The products of combustion escape from the heating-chamber through side flues, the inlet openings to which are placed near the doorway, so that any air drawn into the furnace when the door is opened will pass direct to the chimney flue. To prevent excessive admission of secondary air, the valves at the entrances to the flues F are linked together and interconnected for simultaneous operation with the flue damper. The furnace is closed by a vertically sliding door connected by a chain passing over a pulley with a counterweighted lever. The atmospheric burners E are of the type in which the air-supply openings are closed when the gas is cut off, thus preventing air from being drawn into the furnace through burners not in use. In a suitable construction. shown in Fig. 11, the plug 3 of the valve controlling the supply of gas from the main M carries a sleeve extension 7, which regulates the admission of air through the ports 15. The gas supply is further controlled by a needle valve 12. The mixing-tube 9 is of Venturi form, and connexion with the furnace is made by a nozzle piece 10 with a flange fitting 11.
Patent GB-561981-A (GB)
Title: Improvements in clips or grips for wearing apparel
IPC: A41F11/02
Filed: 1942-12-08
Abstract: 561,981. Suspender grips. FARR, L. W. Dec. 8, 1942, No. 17463. [Class 44] A hose and like suspender grip comprises a plate member a, shown as substantially rectangular, with an inverted T shaped aperture c co-operating with a plate-like member b of T form and preferably bent at g<1> so. that the parts a, b lie close together, Fig. 2. Members a, b are slotted at e, h respectively to receive a connecting, tape f by which they are secured to the elastic suspender strap j. In an alternative arrangement members a, b are threaded on to an extension of strap j. In use the fabric to be gripped (not shown) is laid over member a a and the head g of member b is passed substantially edgewise through the,aperture in member a, taking part of the fabric with it. Member b is then moved to the final gripping position shown in Fig. 2.
Patent GB-1430883-A (GB)
Title: Non-crucible zone melting of crystalline semiconductor rods
IPC: C30B13/10
Filed: 1974-04-22
Abstract: 1430883 Doping of Heat-zoned rods SIEMENS AG 22 April 1974 [27 July 1973] 17475/74 Heading B1S The doping of an undoped semiconductor crystalline rod to a predetermined level during the non-crucible zone melting of the rod in a shielding gas atmosphere or a vacuum is performed by feeding to the molten yarn 7 through a tubular insert 14 in an induction heating coil 6 a doped thin crystalline rod 10 of the semiconductor material having a predetermined doping level and melting the thin rod in the zone. The doping level of the thin rod and the feed speed thereof are adjusted to produce a predetermined doping level in the recrystallised rod produced. The thin rod is preferably rotated during feeding to the molten zone and the rotation and feed rates are suitably controlled by an electromagnetic device.
Patent GB-120398-A (GB)
Title: Improvements in Process of Tanning Fish Skins or the like.
Inventor: BENDIXEN KRISTIAN
IPC: C14C1/08
Filed: 1918-10-26
Abstract: 120,398. Bendixen, K. Dec. 29, 1914, [Convention date]. Treatment preliminary to tanning.-Fish-skins &c. are treated prior to tanning to extract the oil and fatty matters wholly or partially. The extraction is effected by treating the skin with any fat-removing means, e.g. a lye consisting of a solution of soda &c., and the excess of lye is neutralized by an acid, such as weak hydrochloric. The skin is washed either after the treatment with lye or after the addition of acid.
Patent GB-1601609-A (GB)
Title: 4-substituted-2-chloro-3,5-diiodo pyridines and their use as herbicides
IPC: A01N53/00
Filed: 1978-05-03
Abstract: The compounds of the formula I are new. The substituent in the formula I has the meaning given in Claim 1. The new compounds are prepared by iodination of 2-chloro-4-hydroxypyridine, followed if appropriate by its conversion to the corresponding salts or esters. The new compounds are notable for their good herbicidal action and are used to control unwanted plants. <IMAGE>
Patent GB-665702-A (GB)
Title: Improvements in and relating to multi-crankshaft internal-combustion engines
IPC: F02B75/22
Filed: 1949-07-04
Abstract: 665,702. Power plant. SOC. D'ETUDES DE MACHINES, THERMIQUES. July 4, 1949 [July 9; 1948];-No: 17623/49. Class 7(ii) In engines comprising a main. frame, at least one main powershaft and  a  number of banks of. piston-cylinder units each having crankshafts disposed around the axis of a common powershaft, two banks 11, 14 are located at the lowermost part of the frame and one or more vertical and/or inclined banks 12, 12<SP>1</SP>, 13, 13<SP>1</SP> are located at the upper part of the frame, each crankshaft 7-10 having a gear meshing with a gear of the powershaft to which the total power of the units is transmitted. All the banks may be inclined and at least one bank may comprise a double row of units in V-relationship, Fig. 4. There may be two powershafts 17, 21 extending in opposite directions and inclined at an angle to each other in a common vertical plane, the related crankshafts . being correspondingly inclined, Fig. 5, or two powershafts inclined to. and diverging, from each other and extending in the same direction in a common horizontal plane, Fig. 7 (not shown).
Patent GB-1473345-A (GB)
Title: Automatic gain control circuit
IPC: H03G3/30
Filed: 1974-04-23
Abstract: 1473345 Automatic gain control OLYMPUS OPTICAL CO Ltd 23 April 1974 [26 April 1973 1 May 1973 22 Aug 1973 24 Aug 1973] 17639/74 Heading H4R In an automatic gain control circuit an f.e.t. 121 is connected in series with the input coupling capacitor 13 of an amplifier 14 with a gain control signal, derived from the output of the amplifier by a circuit including a smoothing capacitor 153, fed to the gate of the f.e.t. A resistor 122 is connected to the output side of the f.e.t. to provide a low resistance charge or discharge path for coupling capacitor 13 to prevent a low frequency oscillation in the gain of the amplifier on first switch on. The resistor may be connected from the output to earth as shown, or from source to drain, Fig. 4 (not shown). A number of f.e.t.'s may be connected in series and brought into operation one after the other, Fig. 6 (not shown). A bipolar transistor may have its collector emitter path connected from the output terminal of f.e.t. 121 to provide additional control variation, fed with either the same control signal or an oppositely poled control signal depending on the relative conductivity types of the f.e.t. and bipolar transistor, Figs. 8 and 10 (not shown). A switch may be provided to earth the control signal line during replay in a record replay amplifier system to prevent surges when switching to record Fig. 11 (not shown).
Patent GB-1366451-A (GB)
Title: Preparation of adenosine 3 5 monophosphoric acid
IPC: C12P19/32
Filed: 1972-04-17
Abstract: 1366451 Adenosine - 3<SP>1</SP>,5<SP>1</SP> - cyclic monophosphate KYOWA HAKKO KOGYO CO Ltd 17 April 1972 [7 May 1971 (2)] 17687/72 Heading C2P Adenosine-3<SP>1</SP>,5<SP>1</SP>-cyclic monophosphate is prepared by culturing a micro-organism which is capable of producing said adenosine-3<SP>1</SP>,5<SP>1</SP>- monophosphate in a nutrient medium containing at least one fluoride at a concentration of 1 to 2000 mg./l. and under aerobic conditions; and accumulating and recovering the product. The fluoride may be sodium, potassium, calcium, magnesium, lithium, barium, ammonium or zinc fluoride. The micro-organism may be Corynebacterium murisepticum ATCC 21374, Arthrobacter sp. ATCC 21375 or Microbacterium sp. ATCC 21376. The nutrient medium may also contain at least one precursor of adenosine-3<SP>1</SP>, 5<SP>1</SP>-cyclic monophosphate, such as adenine, adenosine, adenylic acid, hypoxanthine, inosine, inosinic acid, 5-amino-4-imidazolecarboxamide and its riboside and ribotide, succinyladenine and succinyladenosine.