baber/WOPTO huggingface dataset:
Patent GB-1411770-A (GB)
Title: Variable frequency dividing circuit
IPC: G06F7/68
Filed: 1972-12-28
Abstract: 1411770 Variable frequency dividers NIPPON GAKKI SEIZO KK 28 Dec 1972 [30 Dec 1971(2)] 59822/72 Heading G4A A variable frequency divider comprises a chain of bi-stable circuits 20 to which is fed the frequency from 10 to be divided; a register 40 in which is temporarily held the value by which the frequency is to be divided; a plurality of coincidence gates 30a-30n arranged to compare states of the counter 20 and register 40 and to issue an output pulse at T 0  and reset counter 20 to zero each time the value in counter reaches that in the register 40. As shown the frequency divider is employed in an electronic musical instrument. A 61-note keyboard 90 and gate circuits 60, 80 co-operate to transfer a selected one of 61 values stored in a main memory 70 to the register 40 whereby the divider A delivers a selected one of 61 notes. As indicated, in a polyphonic instrument, as many dividers A are required as notes can be sounded simultaneously. Simultaneously actuated keys cause various values to be transferred from the common memory 70 to respective dividers. The memory 70 may comprise a diode matrix, a read only memory or a random access memory; in the last case the instrument can be reprogrammed to operate on a different scale to the equally tempered scale.
Patent GB-609776-A (GB)
Abstract: 609,776. Making pipe fittings. DUNLOP RUBBER CO., Ltd., and BULMER, C. G. March 22, 1946, No. 8849. [Class 83 (ii)] [Also in Group XXVIII] A fluid-tight elbow connection for pipes is made by uniting two coupling sections in the form of straight lengths of tubing by means of an intermediate section formed from pressings or as a pressing. In Fig. 1, the straight sections 7, 8 are joined by copper brazing or welding to the intermediate section A which is formed from two sheet metal pressings 9, Fig. 2, which have been welded together along the flanges 9a. In Fig. 4, the intermediate section A is a single, bag-shaped pressing 11, Fig. 5.
Patent GB-1202760-A (GB)
Title: Improvements in or relating to alarm signal installations
Inventor: SCHEIDWEILER ANDREAS
IPC: G08B29/14
Filed: 1968-12-24
Abstract: 1,202,760. Alarm signalling systems. CERBERUS A.G. 24 Dec., 1968 [29 Dec., 1967], No. 61420/68. Heading G4H. An alarm signalling system comprises a number of alarm units 1, 1<SP>1</SP> &c. connected in parallel between a pair of supply conductors 3, 4 connected to a central station 2, the alarm units each comprising main contacts 7 responsive to triggering of the associated alarm unit to establish a signal current circuit between the supply conductors and additional contacts 8 also arranged to close when the alarm unit is triggered, all the units being triggerable by a test signal on lead 9 and the contacts 8 being connected in series so that the failure of any unit will be signalled at the central station. The alarm unit is actuated by a detector 5, e.g. for fire. This may be an ionization detector adapted to energize a relay coil 6 to close the contacts 7 and 8. Any contact 7 when closed short circuits the conductors 3, 4, causing relay 16 at the central station to respond and light an alarm lamp 28. To test the circuits a switch 18, having contacts 18a, 18b and 18c is operated, serving to apply a signal to line 9 to operate all the detectors 5, 5<SP>1</SP> &c. The relay 16 is shunted to prevent it operating and a check light circuit is completed. If all the units operate correctly, the series-connected contacts 8 are closed, making a continuous circuit from line 3 to test relay 17. If the circuit is complete relay 17 operates to open its contact. If any unit has failed to operate the circuit is broken and relay 17 does not operate. The contact 18c being closed, the lamp 28<SP>1</SP> lights to indicate a fault. The detector relay 6, 7 may be constituted by a transistor, and the contacts 8 may be reed contacts operated by a solenoid in series with the transistor. Alternatively a lamp, which may also be an indicator, may operate a photo-cell, or a heater may operate a temperature responsive resistor.
Patent GB-1248948-A (GB)
Title: Improvements in or relating to hot water systems
Inventor: BEAULIEU ADRIAN ARTHUR
IPC: F24H1/22
Filed: 1968-12-24
Abstract: 1,248,948. Domestic hot water and central heating systems; surface condensers. MEGATHERM CORP. 24 Dec., 1968, No. 61436/68. Headings F4A, F4S and F4U. A domestic hot water and central heating system comprises a heat storage tank 10 having a heater 11 e.g. an immersion heater utilising off-peak electricity, to heat a heat storage liquid in which a first pilot coil 12 is immersed for heating the water in the hot water supply system to a prescribed level without raising its temperature above its flash point whilst drawing off occurs. The coil may be used separately or jointly with a second, primary coil 14 of larger dimension to ensure sufficient exposure of the water to be heated therein to a predetermined maximum but below its flash point. The coil 12 is only operative at or above a predetermined temperature e.g. 280‹ F. and a mixing valve 46 is thermostatically controlled to allow flow of water thereto when this temperature is not reached. An equalizing chamber 20 for condensing steam formed in the coil 12 from residual water remaining during an inoperative period comprises elongated concentric chambers 24, 26, the steam passing to the outer chamber and condensing by contact with the wall of the inner chamber which is sprayed with water from an apertured tube 70, the water having first passed through the condenser, the valve 46 and a line 52. The water for the closed central heating system is heated in a further coil 90 immersed in the heat storage liquid, the amount of heat transferred to the water and the introduction of water into the coil 90 being controlled. Heated water from the coil passes through piping 110 to a condensing chamber 92 comprising a closed heat reserve chamber 94, condensing tube 96 and an apertured spray tube 98 with an inlet opening at its upper end whereby the return water from the central heating system passes from the chamber 94 into the spray tube for outward flow into the condensing tube 96 in order to cool the water and condense the steam therein. The water passes from the chamber 92 to a flow chamber 100 to be directed either to the coil 90 or into a supply line 102 of the system through a 3-way valve 104 which is thermostatically controlled.
Patent GB-675035-A (GB)
Abstract: 675,035. Brackets. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Jan. 16, 1951. [Jan. 18, 1950] No. 1316/50. Addition to 611,338, [Group XXXVI]. Class 52 (v). [Also in Groups XXV and XXXVI] A clip for engaging an L- or U-section girder comprises two parts formed of metal strip and extending at right angles to one another, both parts having extensions adapted to engage over free ends of the girder section, one part lying against one side of the girder, the other part extending parallel to but being spaced from another side and being provided with set screws to tighten the clip thereon, this latter part being made from several members adjustably and releasably joined end to end. As applied to an L-section girder, the part 1 and extension 8 of the clip, which are secured to the girder by set screws 6, 10, are joined by a bridge piece 11 which has longitudinal slots at either end. Screws 14 pass pass freely through these slots to engage threaded holes in members 1 and 8 and secure the bridge piece 11 firmly thereto. The bridge piece is long enough to permit adjustment of the clip to several sizes of girder. A modified clip for use with a U-section girder is also described.
Patent GB-717009-A (GB)
Abstract: 717,009. Regulating air supply. KINGSWORTHY METAL PRODUCTS, Ltd. June 29, 1953 [July 11, 1952], No. 17609/52. Class 126 A domestic fire grate comprising a front with an ash-pit opening beneath the grate, has an adjustable flap with a seating co-operating with a seating on the front surrounding the opening, means hingedly connecting the flap to the front along its upper edge and a cam mounted on the flap and bearing against the front to adjust the flap. A damper 1 closing the ashpit space below a grate A is supported by pins 6 inclined to the horizontal and engaging holes drilled in bosses 8. The position of the damper 1 is adjusted by a cam disc 10, which is turned by a spindle 12 set an angle to the axis of the disc. The lower edge of the disc engages a lip 16 formed on the bottom of the ash pit opening.
Patent GB-717080-A (GB)
Abstract: 717,080. Photographic type-composing. LINOTYPE & MACHINERY, Ltd., and WALKER, A. H. J. Aug. 31, 1953 [June 16, 1952], No. 15082/52. Class 98(1) A corrected copy of an original photographic film bearing transverse lines of typographic characters is produced by reproducing in succession each correct line of the original film on to a second lightsensitized film, cutting out of the original film a portion containing an incorrect line or lines, so producing an aperture in the original film, and optically projecting through the aperture in the original film a corrected line or lines for reproduction on the second film. Apparatus for this purpose may include means for feeding the original film and the second film stepwise in synchronism line by line, and a cutter mechanism adjacent the original film for cutting away a portion containing an incorrect line or lines. As shown, a negative film 1 is fed from a spool 8 to a spool 9 in the photographic type-composing machine, and a paper positive strip 2, which has been prepared from film 1 and corrected by a proof reader, is fed from a spool 5 through a viewing apparatus 4 to a spool 3. The viewing apparatus 4 comprises a sheet 6 of " Perspex " (Registered Trade Mark) with a slot 7 of adjustable width. and the strips 1, 2 are driven step-by-step in synchronism in such a way that the line on strip 2 visible in slot 7 corresponds to the line on strip 1 next to be presented at the point 11 where correct lines are printed by contact on an unexposed filin 10. which moves under and in synchronism with film 1. When a corrected line on strip 2 appears in slot 7, the incorrect line is cut out of film 1 by guillotine blades 12, operated by solenoid 16, and rotary cutters 13, operated by solenoid 19. The separation between blades 12, and the distance through which cutters 13 move, is adjustable according to the point size of the type. A correct line of matrices 22 is assembled in the photographic type-composing machine, and at the next movement of the film the correct line is projected by a lens and prism system 23 through the aperture in film 1. which is now at position 11, on to the film 10. The films are driven by an electric motor 24 through a reduction gear 26 which, through a pawl-and-ratchet mechanism, drives a shaft 27 intermittently. This shaft drives wheels 29, 30, 31 which are coupled through magnetic clutches 32 to the take-up spools of films 1, 10 and strip 2. The magnetic clutches are operated by pushbuttons 33 whereby one or two of the films may be kept stationary when a line is to be repeated, or when the number of lines in the corrected text differs from the number of lines in the uncorrected text.
Patent GB-2030146-A (GB)
Title: Polyethers containing pendant organosilicon groups
IPC: C08G65/48
Filed: 1978-06-06
Abstract: The invention relates generally to the field of organosilicon compounds and in particular to such compounds having repeating units of the formula   <IMAGE> wherein R and R<1> are each, individually, hydrogen or methyl; E is the residue obtained by removing the hydroxyl groups from dihydric polynuclear phenol in which the hydroxyl groups are attached to different nuclei; R<2> is a divalent organic radical; R<3> is hydrogen or alkyl of up to 4 carbon atoms; n is an interger having a value of from 1 to 3; and X is a hydrolyzable group, said compound having a weight average molecular weight of from 1,000 to 100,000 and containing from 0.5 to 5.5 weight percent silicon. The compounds are useful for the treatment of inorganic oxide surfaces, e.g. in preparing coated films and in laminates.
Patent GB-2090181-A (GB)
Title: Manufacturing a Blade or Vane for a Gas Turbine Engine
IPC: B28B7/34
Filed: 1978-06-21
Abstract: A method of casting a blade or vane for a gas turbine engine which enables the production of more complex internal shapes than those which may be made by prior art methods. The method of the invention includes the steps of: making a temporary filler piece 12 from a material disposable e.g. by leaching, melting or burning,  holding the filler piece 12 in place in a die 19, 20, injecting ceramic material into the die 19, 20 and causing it to solidify round the filler piece 12 to form a moulding core,  removing the core from the die 19, 20, causing the filler 12 to be removed from the core to leave within the core a cavity having the shape of the filler, and using the core thus produced to form the blade or vane. The core is coated with wax whose internal shape is that of the blade or vane to be cast, a shell of ceramic material is formed on the exterior surface of the wax, the wax is removed, and molten metal is cast into the mould thus formed. <IMAGE>
Patent GB-2007761-A (GB)
Title: I.C. engines with auxiliary combustion chambers
IPC: F02B1/04
Filed: 1978-08-25
Abstract: An internal combustion piston engine having a main combustion chamber 13, a pre-combustion chamber 17 provided with spark ignition means 24 and divided into a primary cavity 18 and a secondary cavity 20 communicating via at least one opening 2, a main intake passage 16 for supplying a lean air- fuel mixture to said main combustion chamber, an auxiliary intake passage 23 for supplying a relatively richer air-fuel mixture to said primary cavity of the pre-combustion chamber, at least one primary flame passage 29 extending from said primary cavity to said main combustion chamber and arranged to direct a flame towards the central region of said main combustion chamber, and at least one, shorter, secondary flame passage 31 extending from said secondary cavity to said main combustion chamber and arranged to direct a flame towards a peripheral region of said main combustion chamber. Embodiments are described in which there is a single primary flame passage and two or three secondary passages; or two primary flame passages and two secondary passages. <IMAGE>
Patent GB-2040385-A (GB)
Title: Furniture connectors
IPC: F16B12/20
Filed: 1978-10-27
Abstract: A fastener or fitting for detachable connection of two panel-like components, for furniture comprises a locking element 4 which is operable to be inserted into a first of said components, to be rotated within said first component and a connector 5 consisting of at least two parts, 26, 30 being operable to be anchored into the second of said components. The connector has a contact face on a first part of the connector, which contact face is in contact with a first eccentric locking element and which acts in conjunction with the locking element on rotation of said locking element in a first direction for the purpose of connecting the components. Both parts of the connector are slidable relative to each other to form an expanding member as well as a preferably plug-shaped expansible element. By means of the first locking element both parts are moveable relative to each other for the purpose of expanding the expansible element on rotation of said locking element in a first rotating direction. <IMAGE>
Patent GB-2009265-A (GB)
Title: Improvements Relating to Pile Fabric
IPC: D04H11/00
Filed: 1978-11-17
Abstract: Pile fabric is made by securing together. e.g. by sticking or sewing, a row of lengths of yarns, and then securing the row to a backing.
Patent GB-2008987-A (GB)
Title: Agricultural Tillage Discs
IPC: A01B15/16
Filed: 1978-11-20
Abstract: A method of forming a replaceable annular blade for agricultural tillage discs wherein the annular blade is formed from strip metal. The strip is formed into a cylinder butt welded and then successively formed and heated in a press, into a flat or curved annular disc.
Patent GB-2007826-A (GB)
Title: Improvements in heat exchangers
IPC: F24H1/26
Filed: 1978-11-22
Abstract: A heat exchanger consists of a corrugated plate 17 sandwiched between opposed surfaces e.g. of respective walls 16, 21 with which surfaces the corrugations are in contact so as to define parallel ducts 18, 22 between the surfaces. The surfaces are joined (e.g. by a closure 23) at a location beyond a first end of the corrugated plate 17 and at said location the ducts 18 and 22 are in communication with each other. At its opposite end the corrugated plate 17 extends longitudinally beyond at least one of the surfaces (e.g. surface 21) where closure means 24, 27 close the ends of ducts 22 and thereby prevent communication between the ducts 18, 22. The wall 16 may be the wall of a combustion chamber 14 containing a burner 15 for heating a gas (e.g. air) or a liquid flowing through the passages 22 and then through the passages 18 to an outlet 13. Two such heat exchangers may be disposed one within the other around the wall 16. <IMAGE>
Patent GB-2008997-A (GB)
Title: Sharpening Button Bits
IPC: B23Q1/54
Filed: 1978-12-04
Abstract: A button sharpening tool for grinding buttons, for example on button bits, comprising a concavely peripherally profiled grinding wheel 9. The wheel 9 is rotated by matched motors 11 to either side of it and the assembly of wheel 9 and rotation motors 11 is carried by a clevice 12. The shank 14 of the clevice 12 is chucked to a machine such as a rotary drilling machine. <IMAGE>
Patent GB-2018215-A (GB)
Title: A package and a method of producing a package
IPC: B65B9/00
Filed: 1979-02-20
Abstract: A method of producing a package comprises forming a pocket 6 in the central portion of a sheet of wrapping material, preferably a thermoplastic film, placing a product 8 within the pocket, folding the flat peripheral portions 10 of the film into face-to- face contact and bonding the contacting portions together. The package can also be evacuated and hermetically sealed. If the film has been oriented, the pocket may be heat shrunk. <IMAGE>
Patent GB-2121639-A (GB)
Title: Improvements in or relating to homing systems
Inventor: BROWN ALBAN
IPC: G01S3/786
Filed: 1979-03-30
Abstract: A homing system for a missile has a detector consisting of a linear array of infra-red sensitive detector elements, and an optical system that images a field of view on the detector and includes a scanner causing the image to sweep over the detector. The output signal of each element is fed to a respective signal channel including a filter and amplifier followed by threshold gates and a peak detector to provide signals denoting the leading and trailing edges of each element output signal wave. Logic circuitry responds to the outputs of the threshold gates to provide a sampling command signal during every wave output of the detector array as a whole consequent upon the detector seeing a target, and also to provide signals indicating which elements are seeing the target and when. The signals indicating which elements are seeing the target are used separately or in combination with the signal values held by the peak detectors to form an error waveform representing the error between the target direction and the optical axis of the homing head of the missile.
Patent GB-2020807-A (GB)
Title: Apparatus for Measuring Acoustic Intensity
IPC: G01H3/08
Filed: 1979-04-25
Abstract: Apparatus for measuring acoustic intensity (e.g. machine noise) comprises a pair of microphones 1, 2 coupled back to back, amplifiers 3, 4, low pass filters 5, means for analogue- digital conversion 6 to produce a series of digital codes representative of signals at successive different instants, and means 7 for automatic calculation, from these digital codes, of the Fourier transforms representing each of the signals, and of the acoustic intensities corresponding to each of the frequencies of the Fourier transforms of the two signals. <IMAGE>
Patent GB-2050705-A (GB)
Title: Metal foil resistor
IPC: H01C7/06
Filed: 1979-05-23
Abstract: A thin film foil resistor is disclosed wherein a thin metallic foil is bonded to an insulating substrate and a circuit path 14 is formed on the foil by photographic artwork-etching techniques. After the circuit is formed, the structure is subjected to another etching process to reduce the thickness of the foil circuit thereby adjusting the value of the resistor. Terminal lands 16 of the circuit are electroplated and the connecting leads 18 are soldered to the lands. The value of the resistor is finally adjusted by removal of material with a laser beam, and the resistor is encapsulated. <IMAGE>
Patent GB-2026682-A (GB)
Title: Ventilating Air Vent
IPC: F24F7/10
Filed: 1979-06-21
Abstract: An air vent, particularly a ceiling mountable air vent for ventilation and air-conditioning systems with a variable air in-flow volume, comprises a hollow cylindrical air vent casing (2) having an axially directed air inlet (3) and a radially directed air outlet [5). An axially movable deflection member (7) is mounted within the casing for deflecting air introduced through the inlet (3) towards the outlet (5). <IMAGE>
Patent GB-2026068-A (GB)
Title: Load-bearing component
IPC: E04C3/04
Filed: 1979-07-03
Abstract: In order to provide e.g. keying zones on a load-bearing component, the material of the zone is slit and loops 3 of material are deformed out of the plane of the component, providing gaps 4, for example through which plaster can pass and provide a key. <IMAGE>
Patent GB-2029771-A (GB)
Title: Etching of Substrates by Jet Printing
IPC: B41J2/01
Filed: 1979-08-28
Abstract: The etching of substrates by forming a jet of minute uniform droplets of a jet printing ink containing an etchant or at least one soluble salt of at least one etchant for said substrate, said jet printing ink exhibiting a viscosity at 68 DEG F of between about 1.5 and 25 cps., directing the jet of liquid into the substrate and modulating the density of the applied jet by an electric field in accordance with the information to be recorded. A salt of a metal more noble than the metal of a substrate may be used to effect electroless plating. A second printing with a salt of a second, even more noble, metal may be used to over plate with said second metal.
Patent GB-2064021-A (GB)
Title: Reciprocating airlock valve
IPC: B65G53/46
Filed: 1979-08-28
Abstract: An airlock valve (10) includes an upper hopper (12) having an inlet port (28) for receiving stock therein and an outlet port (30) for discharging the stock therethrough; a lower hopper (14) attached to the bottom of said upper hopper and having an inlet port (32) indexed with the outlet port (30) for receiving the stock from the upper hopper, and an outlet port (34) for discharging the stock therefrom. A plug (16) is disposed inside said upper hopper (12), the lower portion of said plug (16) being received sealingly in the outlet port (30) and a plug (18) is disposed inside said lower hopper (14), for reception in the outlet port (34) of said lower hopper (14). A reciprocating air motor (20) is disposed inside said plug (16) and is connected to said plug (18) for raising and lowering said plug (16) and said plug (18) in said upper hopper (12) and said lower hopper (14) said reciprocating motor having a cylinder (21) and a rod (22) operatively connected to said plugs 16, 18. A stopper (26) extends from the top of said plug (16) and is sealingly received in the inlet port (28) of said upper hopper (12) when said plug (16) is raised and lowered in said upper hopper (12) by said reciprocating motor (20). <IMAGE>
Patent GB-2060260-A (GB)
Title: A Thermal Cut-off
IPC: H01H37/76
Filed: 1979-09-28
Abstract: A thermal cut-off contains a contact (17) which is movable within a conductive casing (10) to open a circuit in response to collapse of a thermal pellet (15), wherein the pellet is constituted by a thermal body (15) made of a metallic element in substantially pure form, which body (15) is electrically isolated from the casing (10) and/or the contact (17) by a spacer (16). <IMAGE>