baber/WOPTO huggingface dataset:
Patent GB-1561620-A (GB)
Title: Method of producingcomposite rigid-flexible printed-circuit
IPC: H05K3/00
Filed: 1977-11-28
Abstract: The printed circuit board is produced by pressing rigid and flexible individual layers (3,1). To remove the rigid outer layer (3) in that area (6) of the printed circuit board which is required to be flexible, grooves (4,5) are made on the inside of the rigid outer layer (3) before pressing and on its outside after the conductor pattern (8a) has been produced and the part (6a) of the rigid outer layer (3) between the grooves (4,5) is broken out. In this way, the flexible area (6) of the printed circuit board is reliably and expediently covered and uncontrollable positional errors in the covering are eliminated. <IMAGE>
Patent GB-1159207-A (GB)
Title: Improvements in or relating to Diaphragm Pumps
Inventor: GLUMPF GUNTER
IPC: F04B43/067
Filed: 1966-11-04
Abstract: 1,159,207. Diaphragm pumps. WISSENSCHAFTLICH-TECHNISCHES ZENTRUM (WTZ) PUMPEN UND VERDICHTER VEB. Nov. 4, 1966, No. 49467/66. Heading F1A. In a diaphragm pump the actuating liquid chamber 1 is placed in communication with a reservoir 9 when the diaphragm actuating piston 4 is at bottom dead centre through passages 2, 3 in the piston, a chamber 6 in the bush 5 and a passage 7 in the pump housing 8.
Patent GB-1454754-A (GB)
Title: Permanent magnet structure
IPC: H01F7/02
Filed: 1973-10-24
Abstract: 1454754 Permanent magnets GENERAL ELECTRIC CO 24 Oct 1973 [26 Oct 1972] 49554/73 Heading H1P A cylindrical hollow permanent magnet 10 (Fig. 1) is surrounded at its north and south poles respectively by abutting radially magnetised sleeves 11, 12 oriented to provide exterior and interior surfaces of opposed polarities; the latter polarity being similar to that of the magnet 10 with which it is in contact so as to repel leakage flux from the latter, and thus confine the flux distribution to the sleeve magnet, e.g. in focussing an electron tube. The sleeve may be flexible. In a modification (Fig. 2) a pair of permanent rectangular magnets 13, 14 are connected by a yoke 15 and separated by an airgap. Plural rectangular normally magnetised plates 16, 17, 18 and 21, 22, 23 (Fig. 2), (Fig. 3, not shown) are applied to the surfaces of magnets 13, 14 adjacent the airgap and their contacting surfaces have similar polarities to the respective magnet surfaces to repel leakage flux therefrom. The plates may be of cobalt-rare earth or ferrite magnetic materials.
Patent GB-1161612-A (GB)
Title: Heat Exchange Tubes
Inventor: FRASER THOMAS MCINTOSH
IPC: F28F1/12
Filed: 1965-11-24
Abstract: 1,161,612. Forming tubes. COURTAULDS Ltd. 24 Nov., 1966 [24 Nov., 1965], No. 49926/65 Heading B5A. [Also in Divisions B1 and F4] A thin-walled flexible tube 5 is made of a plastics film material such as polyethylene film and has its wall deformed to provide thereon externally projecting ribs or discrete pimples. Several methods of forming such projections are described. In one method, an inflated tube 5 is passed between rollers 1a, 1b in which indentations corresponding to the projections required on the tube wall are formed. The rollers shown have indentations for providing a helical row of hemispherical pimples 6a-9a and 6b-9b on the tube. The tube is softened by preheating or by heating the rollers, and then as the tube passes between the rollers, a vacuum is applied through duets 12 to each roller indentation hence sucking thereinto the softened tube material. The vacuum is automatically cut-off as the tube wall loses contact with the roller, whereafter the tube wall is cooled and set by an air blast. In another method only briefly described, the pimples are formed by applying fluid pressure from within the tube. In a further method described, layflat tubing in a softened state is passed through the nip of a pair of rollers having intermeshing projections and indentations so that pimples and projections are formed on opposite sides of the tubing. The latter is then pressurized to turn the dimples inside out and into form pimples. The projections may take the form of two sets of helical ribs of opposite hand providing a net-like appearance.
Patent GB-1284418-A (GB)
Title: Inflator
Inventor: DESTY DENIS HENRY
IPC: E02B15/04
Filed: 1969-10-13
Abstract: 1284418 Inflating life-saving appliances BRITISH PETROLEUM CO Ltd 29 Sept 1970 [13 Oct 1969] 50077/69 Heading B7U [Also in Division F1] An inflator comprises a firing chamber 10 connected to a Coanda nozzle 15 so that gas generated on ignition of a charge of propellant 11 inside the firing chamber escapes via the nozzle and entrains air. The air enters at inlet 17 and is delivered to outlet 16 at a pressure suitable for inflating boats, rafts, life jackets, tents or barriers for spilt oil. The Coanda nozzle may be of the kind described in Specification 1,278,577.
Patent GB-1535219-A (GB)
Title: Method and apparatus for error reduction in digital information transmission system
IPC: H03M1/06
Filed: 1975-12-09
Abstract: 1535219 Pulse code modulation systems ROLM CORP 9 Dec 1975 [16 April 1975] 50446/75 Heading H3H In a pulse code modulation system, idle channel, cross-talk and quantizing noise are reduced by superimposing on the input analogue signal a controlled noise signal containing a narrow band of frequencies above the frequency range range of the signals to be coded and of R.M.S. amplitude “ to ¢ the quantizing step size. In Fig. 1, the analogue input and final output signals are band limited to 300 Hz-3À4 kHz by filters 11, 24. The noise source 14 is a 17-stage shift register with feedback from the 14th and 17th stages via an EX-OR gate, Fig. 6 (not shown). The noise signal is passed through a high Q filter 13 (Q = 20, 40 or 50) centred on a frequency equal to (n + ¢) times the A-to-D sampling frequency, n being an integer, e.g. 6 kHz noise for 12 kHz sampling frequency. Numerical examples of signal levels and quantizing steps are given.
Patent GB-1275965-A (GB)
Title: Storage and display cabinet
IPC: A47F3/04
Filed: 1969-10-15
Abstract: 1275965 Cabinets with heated shelves; display cabinets TASTE MASTER Inc 15 Oct 1969 [9 Dec 1968] 50597/69 Headings A4H and A4T A cabinet 10 has a plurality of shelves 38 sloping downwardly and outwardly from an upwardly and outwardly sloping rear wall 26 thereof, each shelf 38 comprising a top panel 40 and a bottom panel 42 rivetted to wall 26 and a radiant heater 64 to warm cooked food products displayed on the shelf. Each shelf has a rack 54 comprising side bars 56 inter-connected by transverse rods 58, bars 56 having tabs 60 removably inserted in apertures 62 in panel 40. The cabinet includes an oven 16 provided with sliding glass doors 30 and a control panel 20 mounting thermostats, separated from the display section 14 by a wall 28 which may also include a heater and a removable rack 74. Each shelf 38 and wall 28 may include two heaters. The cabinet also includes lights 80 and transparent side panels 32.
Patent GB-1099652-A (GB)
Title: Preparation of microspheres
Inventor: FITCH FREDERICK TROOP
IPC: B01J2/08
Filed: 1964-12-11
Abstract: Spherical particles comprising at least one actinide metal oxide are made by forming a dispersion of the sol of the oxide in a liquid medium in which the liquid of the sol has a low solubility and allowing the dispersed droplets to settle through the liquid medium and solidify.  The process is conducted so that the liquid of the sol is extracted by liquid medium.  The liquid medium is at a temperature between its boiling point and 50 DEG  C. below its boiling point. Operating temperatures in the range 63 DEG  to 145 DEG  C. are exemplified.  The sol can be an aquasol and may contain H2O2.  The actinide metal may be Th, U, Np, Pu, or Am.  The sol can also contain at least one rare earth metal oxide, i.e. Y, and the lanthanide metal oxides, e.g. oxides of Y, Ce, Pr, Dy, Nd, Pm, Sm, Eu, Gd, Tb, Ho and Er, ZrO2, BeO, TiO2 or Fe2O3.  The liquid medium may comprise a hydrocarbon, chlorinated hydrocarbon or a C4-C10 alcohol, e.g. butanol, hexanol or ethylhexanol and water. Preferably the density of the liquid medium is less than 1.1 g./c.c. at the operating temperature. Water, e.g. in the form of a spray, can be added to the liquid medium while the droplets settle through it.  The droplets of the sol can be of such a size, e.g. 0.1-1.0 mm. diameter, that the resulting spherical particles are 5-500 m  in diameter.  On removal from the liquid medium the spherical particles can be dried and sintered, e.g. for 4 hours at 1600 DEG  C.  The spherical particles can be used in nuclear fuel elements.
Patent GB-1174188-A (GB)
Title: Apparatus and method of making frozen blocks of product material
Inventor: HIRAHARA KATSUJI
IPC: A23G9/10
Filed: 1967-11-08
Abstract: 1,174,188. Freezing liquids. FMC CORP. 8 Nov., 1967 [15 Dec., 1966], No. 50704/67. Heading F4H. Freezing moulds M which extend between endless conveyer chains 16 are each provided with a plurality of divider strips S arranged in a row extending transversely between the chains, the strips and the frozen material therebetween being lifted from the mould as a composite slab at a location 32 and broken into blocks by a mechanism 160, 162. Each strip S has projecting pins 112, 114 and at the location 32 each strip assumes a central position within a corresponding lifting block 80, as shown in Fig. 10, the block being suitably apertured to allow the horizontal passage of the strip therethrough. The blocks are suspended from a common frame 82 which is raised to lift the composite slab from the mould. During such lifting the upper pin 112 is pressed into a groove 131 by a rod 130 and the lower pin 114 is resiliently held between a surface 134 and a part 142 of a spring-biased, pivotable arm 136. When the slab has reached a predetermined height, a cam operates a lever 184 (Fig. 2) to pivot member 162 of the breaker mechanism into engagement with the slab and force the latter to pivot against a fixed member 160. As shown in plan view in Fig. 23, members 160, 162 have corrugated surfaces 168, 178 which are arranged so that the peaks of the corrugation engage opposite edges of adjacent strips S so as to break the intervening blocks of frozen material from the strips. The latter are then lowered into the mould from which they were removed and are retained therein by clips (Fig. 14, not shown). The conveyer is moved in step-wise manner by a piston and cylinder mechanism 40 acting through a rod 42 and pawl 44 on pinions 46 of a sprocket wheel 20. Rod 42 is also arranged, via link 70, to pivot an arm 30 which carries a defrosting tank 50; during such pivotal movement the tank is moved vertically by piston and cylinder mechanism 62. The movement of the conveyer and the above-described lifting, lowering and defrosting operations are carried out in predetermined sequence by supplying air to the associated piston and cylinder mechanism under the control of suitably timed valves (Figs. 18-22, not shown). After leaving location 32, the moulds with their divider strips are washed and sterilized in the lower run of the conveyer, pass round a further sprocket wheel, are filled and then frozen in a brine bath 26.
Patent GB-1528977-A (GB)
Title: Derailleur for bicycle
IPC: B62M9/1348
Filed: 1975-12-12
Abstract: 1528977 Chain shift change speed gear SHIMANO INDUSTRIAL CO Ltd 12 Dec 1975 [12 Dec 1974 (2)] 50960/75 Heading F2D A chain shifter, particularly for use at pedal crank sprockets on a cycle, includes in the transmission between a control cable W and a parallel-link-mounted chain shifter 8, a transmission member 14 which can yield if the chain is unable to make the required movement, e.g. if the pedal sprocket is not rotating. In Fig. 2 the transmission member is a leaf spring 14, attached by screws 15 to one 5 of the parallel links and bearing on a cable-operated arm 12, which swings on a pivot 2 on a frame-mounted fixed member 1, which carries the parallel links 4, 5 of the chain shifter 8 on pivots 2, 3. Application on control tension to the cable W swings the arm 12 counterclockwise, which, through the leaf spring 14, causes the chain shifter 8 to follow in the same direction in opposition to return coil springs 10, 10. If the chain is unable to follow, the shift 8 is detained thereby, and the pivoting arm causes the blade spring 14 to yield. Stops 16, 17 limit clockwise movement of the arm 12 and counterclockwise movement of the link 4. In Figs. 5 to 7, not shown, the transmission member is a rigid plate (14) bearing on a coil spring (11) arranged inside the parallel links 4, 5, and having projecting ends bearing on the pivots 3, 7. In a further modification, not shown, a coil spring is arranged between the arm 12 and the plate 14.
Patent GB-1168006-A (GB)
Title: Improvements in and relating to Transilluminating Appliances
IPC: G02B5/00
Filed: 1967-11-13
Abstract: 1,168,006. Measuring position photoelectrically. CONTRAVES A.G. Nov. 13, 1967 [Dec. 7, 1966], No.51603/67. Heading G1A. [Also in Division G2] In an appliance, Fig. 1 wherein the relative movement of two graticules 16, 20, is measured by a photo-cell 18 scanning the moire stripes of the superimposed images of the graticules, an illuminating device comprises an incandescent wire 11, condenser 12, diaphragm 13 having a slot 14, and objective 15. The slot 14 has serrations (30, Fig. 4, not shown) along its longer edges so that the light intensity diminishes from the longitudinal axis (31) thereof towards the longitudinal edges in accordance with a Gaussian error curve. In another embodiment, a slot having uniform light transmission is used with a plate of varying light absorption so that the light intensity diminishes transversely from its longitudinal axis.
Patent GB-1205073-A (GB)
Title: Improvements relating to floor drying appliances
IPC: A47L11/30
Filed: 1967-11-14
Abstract: 1,205,073. Floor cleaners. HOOVER Ltd. 14 Nov., 1967 [15 Nov., 1966], No. 51853/67. Heading A4F. A floor cleaner of the type which sucks up water or other liquid from a floor and is provided with an arrangement for separating the water from the entraining air comprises a housing 5 separated into two compartments by a bulkhead 13, one of the compartments being arranged to house a conduit 22 connected by a flexible pipe 23 to a suction nozzle (3) (Fig 1, not shown) in a main body (1) of the cleaner and the other compartment defining (i) a cavity in which a container 49 for storing clean water and collecting dirty water is removably received and (ii) an air-water separator which is connected to the conduit 22 through a hole 24 in the bulkhead 13 and provided with an outlet 39 which can be connected to the container 49. The container 49 which is provided with a flexible bag 61 for collecting dirty water from the separator is provided with a latch member 53 which releasably engages a lip 68 on the separator when the container 49 is attached to the housing 5, the proper location of the container being ensured by co-operating recesses 71, 76 and projections 72 and 73, 74 on the container 49 and housing 5, respectively. The latch member 53 which is of generally U-shaped construction to form a carrying handle and which is made of plastics material is provided with two openings (Fig. 5, not shown) of which one is sealingly engageable with the outlet 39 of the separator to direct dirty water therefrom to the interior of the bag 61 whereas the other is usable for filling the container 49 exteriorly of the bag 61 with clean water which is supplied to the floor for cleaning purposes via a manually controlled valve (50) and a pipeline (77). The separator is defined by a cover plate 41 having vent openings 47, a wall 32 and a wall arrangement 33 sealingly attached to side walls 9, 10 of the housing 5, and a wall 31 and a sloping wall portion 38 projecting from the bulkhead 13. The housing 5 which is attached to a handle 6 and a pivotally mounted bail 4 for pivotal movement about a horizontal axis may be of plastics material and the container 49 may also be of plastics material.
Patent GB-1206435-A (GB)
Title: Fastening member for securing heat insulating roofing tiles
IPC: E04F13/08
Filed: 1967-11-15
Abstract: 1,206,435. Securing compressible insulating material. I. S. KAHLER & CO. 15 Nov., 1967 [15 Nov., 1966], No. 52054/67. Heading E1W. Compressible material such as insulating material underlying a waterproof layer is fastened to a roof by clips having a foot plate 3 and a retaining flange 1 connected by a stem 2 which is constructed readily to collapse or compress to a shorter length when axially loaded, so that the fastener will not accidentally penetrate the waterproof layer. In Fig. 2 a fold 2 provides the ready compressibility of the stem whilst in Fig. 5 the stem is formed in two relatively slidable parts having slot and rivet connection 5, 6. In Fig. 4 the stem 2 is weakened by notches 7 to achieve ready compressibility. Other modifications are described, including arrangements in which the stem of each clip is formed of soft metal such as zinc or is of very thin material.
Patent GB-1486330-A (GB)
Title: Process of preparing yeast protein isolate having a reduced nucleic acid content by a thermal process
IPC: C07K14/195
Filed: 1974-12-02
Abstract: 1486330 Extracting protein from yeast ANHEUSER-BUSCH Inc 2 Dec 1974 [11 Feb 1974] 52066/74 Heading C3H [Also in Division C6] Yeast protein of low nucleic acid content, e.g. less than 3% by weight, is produced by rupturing yeast cells to obtain a component containing the nucleic acid and protein, but preferably freed from the cell walls, heat treating this component at a temperature of above 100 C. (up to 120 C.) and a pH of 6-8 for up to 60 minutes, preferably 10 seconds to 60 minutes, giving insoluble protein of reduced nucleic acid content and soluble (intact) nucleic acid, and separating the insoluble protein of reduced nucleic acid content from the soluble nucleic acid remaining in solution. The required component may be obtained from the ruptured yeast cells by heating them at between 25 and 60 C. and pH between 5À5 and 11 for from 5 to 60 minutes. Further separation of the protein may be achieved by precipitating the protein with acid and resuspending it in a neutral medium prior to the defined heat treatment. Yeasts of the species Saccharomyces cerevisiae and Candida utilis are preferred. Analyses are given of the composition of the resulting yeast protein products.
Patent GB-1456016-A (GB)
Title: Decoration of workpieces
IPC: B41F17/00
Filed: 1972-11-14
Abstract: 1456016 Printing with flexible pads F MALKIN & CO Ltd 13 Nov 1973 [14 Nov 1972] 52461/72 Heading B6C In a printing apparatus for printing articles of ware a rubber or like flexible pad 28 having a raised or embossed design is alternately moved into contact with an inclined inked plate 46 and the article 16. The inked plate may be a rotatable plate having a stationary doctor as shown in Fig. 1, or may be a fixed plate with doctor blades reciprocated across its surface.
Patent GB-1188016-A (GB)
Title: Improvements in or relating to Bevelling.
Inventor: ARMSBY BERNARD FRANK
IPC: B24C1/04
Filed: 1967-11-17
Abstract: 1,188,016. Blasting. STANDARD TELEPHONES & CABLES Ltd. 17 Nov., 1967, No. 52464/67. Heading B3D. [Also in Division H1] A method of bevelling the sharp edges at the periphery of a surface, or the sharp edges of relief detail formed in a surface, includes the steps of (i) coating the surface with a liquid masking layer which can be caused to solidify to a resilient solid and which is partially drawn away from the sharp edges by the effect of surface tension, to which may be coupled the effect of shrinkage occurring on solidification, to leave a thinner layer in the regions of the sharp edges than elsewhere, (ii) causing said liquid to so solidify, and (iii) air abrading the surface whereby the thinner parts of the masking layer are preferentially eroded away thereby selectively exposing the regions of the sharp edges to abrasion. To bevel the sharp edges 4, Fig. 1, where the walls 2 of a channel formed in a semiconductor substrate 1 meet the top surface 3, the substrate is covered with a masking layer 5 of a rubberized paint, such as a stopping-off paint designed to be used in electro-plating. The paint is thinned and filtered through a wire mesh before being sprayed on through an atomizer. The paint is allowed to dry at room temperature for about one hour. The substrate is then scanned with a fine alumina powder, e.g. 27Á powder, entrained in an air stream to produce the result shown in Fig. 2. Bevelling may be carried out on a semiconductor substrate 30, Fig. 3, having a layer 31 of opposite conductivity type or on a semiconductor substrate 40, Fig. 4, having a channel lined with a layer 41 of opposite conductivity type and an overall plated metal layer 42. If the substrate has first been given an etch-resistant coating, more material may be removed by etching after air abrasion. Alternatively, the rubberized paint may be both abrasion-resistant and etch-resistant.
Patent GB-1514790-A (GB)
Title: Electronic device for testing a student's knowledge
IPC: G09B7/08
Filed: 1975-12-23
Abstract: 1514790 Educational appliances S C CLARK 23 Dec 1975 [24 Dec 1974] 52640/75 Heading G5G An educational appliance for testing a student by questions with multiple choice answers comprises a console with manually operable keys to indicate his responses, which responses are displayed on the visual display devices 24; the lamps 28 and 30 being provided to indicate a correct or an incorrect response respectively, and a display 32 to indicate the students score on the test so far. The number of the display devices equals the total number of answers to the question so that in operation the student initially selects a number of answers equal to a predetermined number of correct answers, and if a number of those prove to be incorrect he enters a further selection equal in number to the incorrect responses until all those correct answers have been selected. Additionally the response rate may be shown in a display 34, a code number for the student in display 22 and the present question being answered in the display 26. Lamps 36 and 38 respectively indicate "machine ready" and "student error" conditions. Preferably the console is provided with circuitry (Fig. 3, not shown) to provide a sequential output indicating which keys are operated so that it may be linked to a computer for analysing the responses, and circuitry (Fig. 5, not shown) to accept and decode information from such a computer to drive the display devices and lamps, the display devices preferably being of the seven-segment type.