baber/WOPTO huggingface dataset:
Patent GB-1413480-A (GB)
Title: Sequential drying system with isolated closed drying paths
IPC: F26B5/06
Filed: 1972-10-26
Abstract: 1413480 Regenerating desiccants T MARGITTAI 26 Oct 1972 49374/72 Heading B1L [Also in Division F4] In a freeze-dryer comprising a series of drying stations 13A, the circulating atmosphere is dried in each station by passing it through a rotating drum 43 containing hygroscopic calcium chloride. The calcium chloride becomes liquid as it absorbs moisture and it flows out of the drum 43 via opening 57 into a trough 59 which conveys it via a pump, and a filter to a pre-heater and evaporator. The resultant pasty mass passes through a heated concentrator to a crystallizer, and is conveyed as crystals by a screw conveyor to a conduit feeding branches 112 controlled manually or by a device sensing the weight of each drum 43. The screw conveyor is also controlled by the sensing device.
Patent GB-1414966-A (GB)
Title: Dynamo-electric machines
IPC: H02P9/36
Filed: 1971-10-25
Abstract: 1414966 Dynamo-electric machines; controlling rectifiers REYROLLE PARSONS Ltd 25 Oct 1972 [25 Oct 1971] 49554/71 Headings H2A and H2F The shaft of an A.C. machine of the turbogenerator type carries, in addition to the field winding of the machine, the polyphase armature of a main exciter, a polyphase bridge rectifier including controllable semi-conductors and the polyphase armature of a control exciter producing firing pulses for the semi-conductors of the bridge rectifier, each phase winding of the main exciter armature comprising a number of parallel paths each connected to a respective semi-conductor in each of the bridge recifier branches associated with that phase, The main exciter shown is a three phase generator, each phase winding having two parallel paths connected to respective points, e.g. rl and r2 for the red phase, in the associated arm of the bridge rectifier, each branch of which has two thyristors, e.g. t1, t2. The two thyristors of each branch are triggered by a common firing circuit connected to a respective one of the output windings, e.g. winding 4-5 for firing circuit of thyristors t1, t2, of the six phase control exciter. The amplitude of the D.C. output of the bridge rectifier is controlled by altering the conduction angles of the thyristors under the control of an automatic voltage regulator, a.v.r., this varying the current through the field windings d, q, of the control exciter and so shifting the stator magnetic field vector. Each of the output phase windings of the control exciter may comprise several sections each connected to a respective triggering circuit for a respective one of the thyristors, e.g. t1, t2 in each branch of the bridge rectifier. Fig. 3 illustrates a modified triggering circuit for a main thyristor, the triggering circuit comprising an auxiliary thyristor TG itself triggered by a programmable unijunction transistor P whose gate is held at a constant voltage by Zener diode ZD and whose anode is connected to a voltage divider R1, R2 connected across a phase winding of the control exciter. The capacitor C ensures rapid turn-on of the main thyristor when the auxiliary thyristor TG is triggered.
Patent GB-1005665-A (GB)
Title: A sliding carriage for straight-bed-knitting machines
IPC: D04B15/78
Filed: 1961-12-29
Abstract: 1,005,665. Knitting-machines. MANTA S.A. Dec. 29, 1961 [Dec.30, 1960], No. 46717/61. Heading D1C. A carriage for a straight-bed knitting-machine has cams movable transversely of the carriage base and electro magnets which provide abutments to maintain the cams at selected levels, mechanical means being provided to move the cams into a position projecting below the carriage during periods of reversal of the state of the electromagnets. A needle raising cam 20 and a clearing cam 21 are slidably mounted on guide pins 26, 36 and upwardly biased by springs 38. Cams 8 adjustably secured to the machine bed actuate a lever 7, when the carriage is at the bed end, to depress the cams to the level 42. During the carriage travel the cams 20, 21 are held by the springs at the level 42<SP>1</SP> where cam lugs 22, 23 abut the rods 24, 25 of the electromagnets 13, 33 when these magnets are energized. Electromagnets 12, 32 have double the stroke of magnets 13, 33 and when energized their rods 43, 44 act on rods 24, 25, to maintain the cams at the lower level 42. The knitting cams on the carriage are movable parallel to the cam plate 19 by other electromagnets (not shown) to regulate the tightness of the finished article.
Patent GB-1494633-A (GB)
Title: Information transmission controlling devices
IPC: G06F12/04
Filed: 1974-11-19
Abstract: 1494633 Controlling information transmission CASIO COMPUTER CO Ltd 19 Nov 1974 [20 Nov 1973 (2)] 50012/74 Headings G4H and G4A The invention relates to the transmission to a printer of information in series consisting of letters and/or numbers, the characters of which contain different numbers of bits, depending on whether the character is a number (requiring, e.g. 4 bits per character) or a letter (requiring, e.g. 6 bits per character). In the embodiment of Fig. 1, each series S1-S6 is sent from a keyboard or tape unit 11 to AND gate 17a-17f enabled sequentially by the outputs of a counter 22. A circuit 19 stores bits indicating the length of each character output from 11 (this may be obtained from a tabulating device, e.g. if the words consist of letters or numbers in columns of a bill); a device 18 connected thereto causes counter 22 to count modulo 4 or 6 as required; thus only gates 17a-17d are enabled for numbers. The outputs from gates 17 are serially input to a memory 25 via an OR gate 23. The data is output from 25 to a buffer 28, Fig. 4; a device 21 connected to circuit 19 enables a gate 37 (for 6 bit codes) or a gate 40 (for 4 bit codes): characters representing numbers thus pass via delay flip-flops 36c-36e in buffer 28 and flipflops 39c-39d in a memory 29, while characters representing letters are fed into flip-flops 36a-36e and 39a-39f. The parallel data is then passed to printer 31 via decoder 30. The output from 21 is also fed to a counter 34 to enable gate 48 or 47, thus producing a modulo-4 or 6 count used for shifting the parallel data through 29. In the embodiment of Figs. 5-7 (not shown) each series of 4- or 6-bit character is followed by a 4 or 6 bit word respectively whose last two or four bits are always 1 and whose first two bits are 01 or 10, depending on whether the following series has 4- or 6-bit characters. The apparatus of Fig. 1 incorporates suitable decoding circuitry (Fig. 7) in place of circuit 19 and devices 18, 21.
Patent GB-1030998-A (GB)
Title: Rotary electric switch construction
IPC: H01H13/58
Filed: 1963-12-19
Abstract: 1,030,998. Snap-action switches. BOYNE PRODUCTS Inc. Dec. 19, 1963 [Dec. 26, 1962], No. 50178/63. Heading H2B. A snap-action switch comprises a plastics casing 1, having guide ribs 28 therein, a plunger 30 with an annular flange which carries actuating teeth 34, a rotor 19 having a series of guide fingers 25 extending parallel to the axis of the rotor, a contact member 15 which co-operates with contacts provided on a base member 5 and which has flanges 18 arranged to slide in grooves 21 in the rotor, and two springs 23, 32 acting respectively between the rotor and the member 15 and the rotor and the plunger. The ends of the guide ribs 28 and of the actuating teeth 34 are chamfered and the fingers 25 are provided with an inclined surface 26. In the inoperative position the plunger 31 is in its extended position, the rotor is abutting a shoulder 27 of the casing and some of the teeth 34 and of the fingers 25 are engaged between the ribs 28. When the plunger is depressed, the initial movement of the rotor is linear until the fingers 25 clear the ribs, whereupon surfaces 26, 35 co-operate to impart rotational movement to the rotor. When the plunger is released the rotor is held in its next rotational position by again engaging the guides 28.
Patent GB-1413150-A (GB)
Title: Apparatus for automatically identifying metaphases in a cell sample
IPC: G06T1/00
Filed: 1972-10-31
Abstract: 1413150 Pattern recognition systems COMMISSARIAT A L'ENERGIE ATOMIQUE 31 Oct 1972 [3 Nov 1971] 50178/72 Heading G4R Apparatus for identifying a cell nucleus containing well-dispersed chromosomes in a biological sample includes means for examining elementary areas of an array of areas of an image of the sample and for generating a 1-bit for each area that has an optical density lying between two preset reference levels and a 0-bit for all other areas. The number of well-dispersed chromosomes is determined by counting the number of predetermined groups of areas having all 1-bits, a sample with well-dispersed chromosomes providing a count which exceeds a certain number. Several samples are present on a microscope slide and an image of each in turn is presented to the scanner. The scanner comprises a matrix or a column of photo-sensors. In the latter case as the n sensors sweep over the image their outputs pass to n respective threshold units which output a 1-bit when the input signal lies between two preset levels. In one embodiment, the output signals pass to n circuits each comprising an AND gate and stores, each gate delivering a 1-bit whenever three successive 1-bits occur, i.e. whenever there is a 1-bit in three adjacent areas of the particular row of the array of elementary areas. The gates are connected in groups of three to further AND gates which provide an output whenever a signal is received simultaneously from three adjacent ones of the first AND gates, i.e. whenever a matrix consisting of 3 x 3 1-bits is detected. If the number of these exceeds a pre-set number, indicating a sample with well-dispersed chromosomes, the counter gives a pulse which may cause the coordinates of the sample to be read from a store so that the sample may subsequently be selected. In another embodiment, the outputs of the n thresholding units are passed to two circuits. One of these determines, for each pair of columns of elementary areas, the number of rows having adjacent 1-bits and provides a -pulse if the number exceeds a certain value. The number of column pairs resulting in such a pulse is counted and if this number exceeds a preset value the sample scanned is assumed to have well-dispersed chromosomes. The second circuit counts the number of groups of two adjacent 1-bits in each column in turn. If this number is large enough a further counter is incremented. The sample is also assumed to have well-dispersed chromosomes if the further counter reaches a preset count.
Patent GB-1337906-A (GB)
Title: Integrated semiconductor structure
IPC: H01L29/78
Filed: 1972-11-01
Abstract: 1337906 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 1 Nov 1972 [17 Dec 1971] 50285/72 Heading H1K A lateral bipolar transistor constituted by N<SP>+</SP> type emitter and collector regions 4, 5 and P type base region 13 shares the first-mentioned two regions with a space-charge limited transistor whose base region comprises an N- type substrate 1 adjoining the bipolar base region 13. The arrangement is such that, with increasing emitter-base forward bias, a space-charge limited current flows through the space-charge limited transistor under the control of the bipolar base region 13 before the bias reaches a sufficient level to initiate bipolar transistor action through the base region 13. The relatively high gain of the space-charge limited transistor is thus employed at low emitterbase forward biases, and the onset of bipolar action may be retarded further by entirely surrounding the N<SP>+</SP> type collector region 5 with the N- type material of the substrate 1. The electronic processes involved in the operation of the device are discussed in the Specification. A complementary structure comprising a PNP lateral bipolar transistor in parallel with and sharing the same emitter and collector regions as a PN-P space-charge limited transistor may be integrated into the same semi-conductor substrate 1 as the device shown in Fig. 1 with the addition of no further diffusion steps. The Fig. 1 device is isolated from the complementary device by an N<SP>+</SP> type guard ring. The conductivity types of the arrangement may be reversed.
Patent GB-1358428-A (GB)
Title: Fluorocarbon resin-based keying primary composition
IPC: B05D5/08
Filed: 1971-11-01
Abstract: 1358428 Fluoro-polymer compositions; polyphenylene sulphide compositions TEFAL 1 Nov 1971 [20 Nov 1970] 50695/71 Headings C3P and C3R A fluorocarbon polymer composition for use as a primary coating for keying a polytetrafluoroethylene lining on to a metal surface comprises an aqueous dispersion of a fluorocarbon polymer containing an intimate mixture of polyphenylenesulphide resin, lithium hydroxide and a pigment stable at at least 400‹ C. The composition may also contain cobalt octanoate and an alkali metal salt such as the sodium salt of polymerized dinaphthyl methane disulphonic acid. The primary coating is applied to a metal surface which has been roughened and optionally coated with a glass frit. The primary coating which is preferably a discontinuous film, is allowed to dry and then covered with a coating of polytetrafluoroethylene and is then sintered at 400‹ C. for 10-15 minutes. In examples dispersions of polytetrafluoroethylene and/or tetrafluoroethylene hexafluoropropylene copolymer are mixed with polyphenylene sulphide resin, lithium hydroxide, the sodium salt of polymerized dinaphthyl methane disulphonic acid, cobalt octoate and carbon black or an unspecified pigment.
Patent GB-1452312-A (GB)
Title: Cat litter box
IPC: A01K1/01
Filed: 1973-11-02
Abstract: 1452312 Animal litter box FLEXIMAT CORP 2 Nov 1973 [24 Jan 1973] 51038/73 Heading AIM A moulded litter box comprises a pan section 110 having walls 112-115 and a bottom 16, a cover section 111 having walls 138-141 and inwardly extending flanges 142 surrounding an entrance aperture in the top. A pair of spaced hinges 145 join walls 115 and 141. The pan walls 112-115 slope upwardly and outwardly while the cover walls 138-141 slope upwardly and inwardly. Carrying handles 128, 129 are moulded in the end walls 112, 113. A disposable liner, shaped to generally conform to the inside of the pan 10, spreads over the rib 126 so that the surplus is outside the box. When the liner is in place litter is spread on it, and snap latches secure the cover and pan in the closed position.
Patent GB-1361707-A (GB)
Title: Wiper system for a surface for example a vehicle headlamp glass
IPC: B60S1/60
Filed: 1972-11-07
Abstract: 1361707 Cleaning vehicle lamp glasses and windscreens ELECTROLUX A B 7 Nov 1972 [9 Nov 1971] 51212/72 Heading A4F A wiper system for cleaning a convex surface such as that of a vehicle headlamp lens 12, or a windscreen, comprises a wiper blade 13 mounted on an arm 14 or a driving shaft 15, Fig. 1 (not shown), and reciprocable between two end positions whilst exerting a substantially constant pressure on the surface, at least one stop rendering the blade convex in the direction of movement to at least one of said end positions. As illustrated a stop 19 or 20 is provided at each end position and is so located that the blade 13 may be parked with a curvature conforming to the lens periphery. The driving shaft (15) is oscillated by a cable drive and its axis passes through the centre of spherical curvature of the lens surface. The wiper shaft and wiper arm 14 are hollow for the passage of cleaning liquid to a spray nozzle on the arm 14. The shafts carrying the blades wiping two vehicle headlamps are driven by a common cable and pulley mechanism, Fig. 3 (not shown).
Patent GB-512877-A (GB)
Abstract: 512,877. Refractory substances. CONSTANTINE, W. W. (General Motors Corporation). March 25, 1938, No. 9162. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 1, 1938.] [Class 22] Refractory articles, e.g., crucibles and sparking plug and like electric insulators, are made by mixing finely ground precalcined alumina and from .5 to 20 per cent. of chromium oxide, forming to shape and firing between cones 30 and 35 to' produce a dense non-porous body. In an example 90 parts of alumina and 10 parts of chromium oxide are finely ground, mixed with a phenol-formaldehyde resin as a temporary binder, moulded to shape, e.g., in rubber moulds, and fired at about 1830‹C.
Patent GB-1485857-A (GB)
Title: Cathode-ray tube
IPC: H01J29/07
Filed: 1974-11-27
Abstract: 1485857 Colour television tube PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 27 Nov 1974 [30 Nov 1973] 51391/74 Heading H1D The shadow mask assembly 6 in a rectangular multigun tube is shielded from terrestrial field by ferromagnetic core 11 with flange 21 interrupted at the corners by apertured brackets 22 to fit on resilient clamping members 18, so decoupling the cone mechanically from mask 12. Clamping members 18 are attached to suspension members (15, Fig. 2, not shown) projecting from the mask corners. Spring plate 26 looks under tabs 24 to retain the cone; alternatively tension springs between cone and members 18 may be employed. Clamping members 18 engage projections 19 on the turned-up edge 2 of the dished screen end 1 of the tube, the rounded parts of member 18 being protected by aluminizing where they contact the glass. Welding of members 18 to the suspension members is carried out after positioning of the screen. Ring 20, matching mask 12 in gauge and expansivity, prevents reflection of edge electrons. Flange 27 on the cone overlaps ring 20 to enhance shielding.
Patent GB-1156197-A (GB)
Title: Fungicides
Inventor: WEIDINGER H
IPC: C07D295/12
Filed: 1966-11-18
Abstract: 1,156,197. Fungicidal compositions containing anthroquinone derivatives. BADISCHE ANILIN - & SODA - FABRIK A.G. 18 Nov., 1966 [20 Nov., 1965], No. 51764/66. Heading A5E. A fungicidal composition comprises a compound where in R<SP>1</SP> and R<SP>2</SP> are alkyl or R<SP>1</SP> + R<SP>2</SP> + N denotes piperidine or morpholine, or a salt of said compound.
Patent GB-1407967-A (GB)
Title: Process for producing a photographic image in silver halide emulsions
IPC: G03C1/40
Filed: 1971-11-08
Abstract: 1407967 Silver halide materials AGFAGEVAERT 30 Oct 1972 [8 Nov 1971]  51801/71 Heading G2C In a silver halide photographic material for development at temperatures above 30‹C, e.g. a direct positive material (see Ex. 1), the silver halide emulsion hydrophilic colloid layer, or a hydrophilic colloid layer in water permeable relationship therewith, comprises a polymeric compound containing 15 to 100 mole % recurring units derived from a homopolymer or copolymer of a N-hydroxy alkyl (meth) acrylamide or hydroxyalkyl substituted diacetonacrylamide, or of an alkyl ether thereof wherein the alkyl groups are 1-5C. The polymer prevents pressure marks in the emulsion and examples include poly (N- methoxymethylmethacrylamide), poly(N-hydroxymethylacrylamide) co (N-hydroxyethylmethacrylamide/butyl acrylate) and co (ethyl acrylatehydroxymethyl-diacetonacrylamide) latex. Reference has been directed by the Comptroller to Specification 1069944.
Patent GB-1489434-A (GB)
Title: Cooling device for tubular film or sheeting
IPC: B29C48/90
Filed: 1974-12-02
Abstract: 1489434 Cooling extruded tube HOECHST AG 2 Dec 1974 [1 Dec 1973] 52093/74 Headings B5A and B5B An extruding tube, or tubular film, of polyolefin or polyvinyl chloride, is internally supported by gas pressure as it is cooled during passage in contact with the surfaces of a peripherally closed cooling tunnel defined, around the periphery of the tube, by alternating planar and cylindrical surfaces of respective elements 1, 2, which are adjustable, to vary the transverse dimension of the tunnel and the inclination of the surfaces to the axis of the tube, by sliding movement between the planar surfaces and planar outer surfaces of the elements 2. For adjustment transversely of the axis, each element 2 is mounted to a rack 8 at its opposite longitudinal ends, with the racks of each element being displaceable by one of a pair of pinions 17 mounted on a common drive shaft 9, all of which are rotated from a drive handle by a common chain 10 from a drive shaft 11. For adjustment of the inclination to the axis of the tube, each rack is driven through clutch 15 on the shaft 11, permitting its disconnection from the shaft 9 for independent rotation. The elements 1 are automatically adjusted by the elements 2, being mounted at ball joints 14 to guide shafts 13 and urged against the elements 2 by springs 12. Cooling is effected by air blown on to the tube through perforations 4 of the planar and curved surfaces, from chambers 5 of the elements provided with inlet and outlet pipes 6, 7. The outside edges of the planar and curved surfaces taper towards each other along their length by specified angles, to facilitate the angular adjustment. The outer sides of the curved surface elements 22 preferably meet at 90 degrees, or more. The cooling elements 1, 2, may each comprise from three to ten in number, and may be of metal or plastics. They are adjustable between the Fig. 2 position, and the Fig. 3 position (not shown) where the elements 2 are brought together to define a circular section.
Patent GB-1162843-A (GB)
Title: Heat Exchange Panel System
Inventor: ROTHSCHILD RICHARD DICKSON
IPC: F24D3/16
Filed: 1966-11-22
Abstract: 1,162,843. Radiators for heating and cooling buildings. INTERNATIONAL ENVIRONMENT CORP. 22 Nov., 1966, No. 52296/66. Heading F4S. A heat exchange system for heating or cooling rooms comprises a plurality of plates 13 made of a heat-conducting material such as aluminium, having side flanges 28 bent to clip in close engagement with a rectangular heat exchange fluid distribution tube 17, the system being intended for mounting inside the walls and/or ceiling by means of suspension channels 10 and wall moulding channels 12. The plates may be provided with acoustic perforations 34. An insulating blanket 18 rests on the flanges 28 and end flanges 35. Notches 32, 33 and 36 are cut in the flanges 28, 35 to accommodate, respectively, a header manifold 16, heat sources such as lighting units, and the distribution tubes 17. In modifications the distribution tubes may be polygonal for example, hexagonal, or other shapes, the essential feature being a flat face parallel to the panels.