baber/WOPTO huggingface dataset:
Patent GB-1316511-A (GB)
Title: Arrangement for amplitude limitation in an esentially sinsoidal ac-signal with subsequent multiplication of the frequency
IPC: H03B19/00
Filed: 1970-12-29
Abstract: 1316511 Frequency and waveform changing TELEVERKETS CENTRALFORVALTNING 29 Dec 1970 [30 Dec 1969] 61498/70 Heading H2F [Also in Division H3] A circuit for generating a square wave s of frequency Nf from a sinusoidal signal a of frequency f comprises phase shifters 1, 2, Fig. 1, fed by the signal a and generating sinusoidal signals x, y spaced by m<SP>0</SP>. Signals x, y are fed to each of an odd number N (>1) of units 3, 4, 5 which provide N sinusoidal signals spaced apart by 360 degrees/N. These signals are then amplitude limited by N units 6, 7, 8 whose square wave outputs are added at 9 to provide the signal s having N times the frequency of a. In an embodiment, Fig. 4 (not shown), the input a and a signal -a are applied to RC phase shifters, the signals x, y being passed to N differential amplifier limiters (36, 47, 58) which provide directly the N phase displaced square waves, the square waves being added to give the signal s. The circuit may be used in a frequency shift data demodulator.
Patent GB-648237-A (GB)
Abstract: 648,237. Clay guns: MILES & PARTNERS (LONDON), J., and RIDOUT, A. Dec. 30, 1948, No. 33517. [Class 51(ii)] In a clay gun of the two cylinder type in which connected pistons operating in forward and rear cylinders eject clay from the forward cylinder into the furnace tap hole a fluid operating piston in the rear end of the rear cylinder controls, through a hook, the securing of the gun to a latch on the furnace. As shown the gun comprises cylinders 12, 13, separated by a wall 14 through which passes a rod 15 connecting a clay-pushing piston 16 and an intermediate piston 17. A hook-operating piston 18 is located in the rear of the cylinder 13 and on admittance of pressure fluid into the space 43 the piston operates, through a rod 19 and lever 21, a rod 24 which at its forward end is bifurcated to constitute a yoke 29 to which is pivoted the hook 32 via slots 30 and pin 31. The hook 32 is retained against moving rearwardly on striking the latch 49 as the gun approaches the furnace, by a helical spring 34 fitted on the rod 24 between the yoke 29 and plate 33 fixed to the top of the cylinder 12. In operation the cylinder 12 is filled with clay and the gun placed in position, Fig. 4. Fluid under pressure is then admitted via, pipes 41, 42, into the space 43 the lever 21 being forced in an anticlockwise direction so pulling the hook 32 rearwardly thereby locking the hook and latch and forcing the nozzle 10 into the tap hole 48. The piston 17 then moves forward causing the ejection of clay into the tap hole. In order to disengage the gun from the furnace the valve 40 is turned, Fig. 7, so that space 43 is placed in communication with the atmosphere 45 whilst pressure fluid is admitted to the cylinder 13 on the forward side of the piston 17 the spring 34 then operating to move the hook 32 forwardly and clear of the latch 49. The piston 36, for knocking the hook upwardly, is operated via the pipe 38, by fluid from the space forward of the piston 17. According to the Provisional Specification the piston 18 operates within a separate cylinder, fluid being admitted to this cylinder via a pipe in communication with the space 43. Specification 498,446 is referred to.
Patent GB-756085-A (GB)
Abstract: 756,085. Remote indicating compass systems. BENDIX AVIATION CORPORATION. March 16. 1954 [April 10, 1953], No. 7638/54. Class 40(1) A compass system comprises an earth inductor developing an alternating voltage correspondence to a heading, and an induction motor having a fixed and a variable phase winding the former energized by a voltage at the frequency of said voltage and the latter by said voltage after amplification in a frequency selective amplifier which passes said frequency. The earth inductor shown comprises three magnetic cores mounted in the form of a triangle, each with a primary winding 15, through which the cores are periodically saturated and a secondary winding 17, the secondary windings being connected together and to receiver stator windings 23 which are inductively coupled to a rotor winding 27 driven by induction motor 31. The earth's field induces in the secondaries currents having a fundamental frequency twice the frequency of the saturating current, which set up a corresponding field in the receiver stator, and the error signal thereby induced in the rotor, corresponding to its heading relative to the field, energizes through frequency selective means one winding of the induction motor to realign the rotor with the field, the other winding being energized by current at the fundamental frequency. The error signal is amplified in four voltage amplification stages comprising valves 303, 315, which include high and low frequency stabilizing networks 323 and 325, 326 respectively, and a twin T degenerative feedback network 340 from the fourth to second stages tuned for maximum attenuation at the fundamental frequency. The output is amplified in power amplifier tube 317, the capacitor 367 serving to correct the phase of the output. The output signal, part of which is fed back to the second amplification stage to stabilize the amplifier and lower its output impedance, energizes winding 30 of induction motor 31, the other winding being supplied with current at the fundamental frequency by oscillator 43. This oscillator comprises double triode 120, one half of which is driven by the other, the oscillatory output of the one half being fed back to the input circuit of the other via capacitor 129 and the Wien bridge 126, which provides a frequency selective regenerative feedback path 138, 149 to the grid and a non-selective degenerative path 141, 165 to the cathode. The frequency of oscillation is determined by the value of the RC components is the regenerative feedback path. The oscillations are amplified in valve 122 and then fed through transformer 124 to winding 32 of the motor which realigns the rotor with the field and may drive an indicator. Oscillator 43 is coupled to the tuned anode push-pull Meissner oscillator, which supplies the primary windings 15 of the earth inductor, over an adjustable phaseshifting circuit 154, 156, 157 and a resistor, so that the frequencies are locked at a 2:1 ratio but have a variable phase relationship. The earth inductor 14 is maintained in a horizontal plane by gyroscope 12
Patent GB-2026267-A (GB)
Title: Synchronous demodulation circuits
IPC: H03D1/22
Filed: 1978-06-06
Abstract: In a synchronous demodulation circuit including an oscillator (14) of controllable frequency and an oscillator control circuit (8, 9, 10, 11) arranged in a phase-locked loop with the oscillator circuit to correct, within a certain range, the tuning of the oscillator circuit, a further oscillator control circuit (16) is arranged in a second control loop with the oscillator circuit to bring the oscillator frequency within the control range of the phase-locked loop in the circumstances of the tuning error being too great for the first-mentioned oscillator control circuit to correct. <IMAGE>
Patent GB-2000625-A (GB)
Title: Medium or high tension electric cable and method of production thereof
IPC: H01B13/24
Filed: 1978-06-27
Abstract: The medium and high tension electric cables with which the invention is concerned have an insulation (e.g. of polyethylene, which may be crosslinked), around which is disposed a conductive screening layer. In the prior art, it had been found difficult to make a commercially interesting cable whose screening layer not only gave the desired electrical screening effect, but also remained easy to detach in making terminations etc. during installation. The invention provides an escape from this dilemma by formulating its screening layer composition from a polar monoene (co)polymer (e.g. polybutene or polypropylene), together with an electrically conductive ingredient (e.g. carbon black).
Patent GB-2011263-A (GB)
Title: Amusement device for propelling submerged components of a body towards a target for assembly
IPC: A63H/
Filed: 1978-09-04
Abstract: An amusement device, comprising a transparent enclosure 10 containing a liquid, a target 42 within the enclosure, and components 56, 58, 60, 62 to be assembled on the target 42. The components have specific gravities greater than the specific gravity of the liquid, and a pump 32 generates currents within the liquid to cause the components 56, 58, 60 and 62 to move towards the target 72 for assembly, according to the chart 44. <IMAGE>
Patent GB-2006168-A (GB)
Title: Improvements relating to sheet feeding apparatus
IPC: G07D11/00
Filed: 1978-10-16
Abstract: In a sheet stacking apparatus having axially spaced spirally slotted stacking discs 24 and a sheet stripping plate 30, sheets are conveyed to the stacking discs by a vacuum drum 7 having annular grooves into which the extremities of the stacking discs extend. The stacking wheel is driven at a lower peripheral speed than the drum and in the opposite direction of rotation. The disposition of vacuum ports in the drum is such that a sheet continues to be held on the drum surface by the vacuum until the extremities of the stacking discs 24 in the grooves, by virtue of their lower peripheral speed, act against the vacuum to strip the sheet from the drum 7. The apparatus can be used for stacking flimsy and damaged sheets such as used banknotes. The axis of the stacking wheel 24 may be movable about the axis of the vacuum drum 7 to accommodate different stack thicknesses. Such an arrangement can be used as a variable "buffer" sheet store. <IMAGE>
Patent GB-2009773-A (GB)
Title: Preparation of Nickel Dioxime Complex
IPC: C09B57/10
Filed: 1978-11-16
Abstract: A process for the preparation of the nickel dioxime complex of acetoacetanilide, possessing improved gloss, wherein the dioxime of acetoacetanilide is prepared from the monoxime by means of a hydroxylammonium salt in the presence of nickel ions. The pigmentary form obtained according to the invention is particularly suitable for pigmenting surface coatings.
Patent GB-2009495-A (GB)
Title: Reduction of depth of field in an electron probe device
IPC: H01J37/26
Filed: 1978-11-30
Abstract: In a scanning electron microscope having a reduced depth of field the narrow focussed electron beam is caused to diverge from, and for example rotate around, its normal axial direction, then to converge to cross the axial direction at a fixed point and at an angle which is greater than the half angle of the focussed beam e.g. at least 10 times, typically 100 times, the half angle. A major application of the device is in the measurement of difference in height between two areas of an object. Fig. 1 includes raster scan coils 22 and conical scan coils 24. In Fig. 2 (not shown) the scan coils are downstream of objective lens 16, and variations are discussed including one set only of scan coils by superimposition of exciting signals. The conical scan may be elliptical, square or irregular rather than circular. Operational variations are described including scanning at position 180 DEG  apart at the same tilt angle or at the same rotational position but different tilt. Electron beam microfabricators and x-ray microanalysers are instanced. <IMAGE>
Patent GB-2011801-A (GB)
Title: Microcolumn Suitable for Chromatography of Red Blood Cell Haemolysates
IPC: G01N33/66
Filed: 1978-12-01
Abstract: The microcolumn comprises a tubular barrel having an intermediate cylindrical portion 22. One end of the cylindrical portion tapers inwardly to a discharge orifice and the other end of the cylindrical portion flares outwardly to a reservoir for liquid 21. A column bed 27 of a particulate ion-exchange resin is disposed in the cylindrical portion between transverse microporous discs 25, 26 (preferably of high density polyethylene) which are permeable to red blood cell haemolysates. <IMAGE>
Patent GB-2008924-A (GB)
Title: Making expanded foodstuffs; fluidised beds therefor
IPC: A23L5/10
Filed: 1978-12-05
Abstract: A process for the production of expanded cooked farinaceous snack- type products of regular shape comprises the treatment of a gelatinised intermediate product, of moisture content 10 to 15% by weight and in substantially laminar form, to remove a major part of the moisture by heating by immersion in a mass of oil-free and fat-free hot dry particulate material, e.g. salt or CaCo3, permitting expansion of the product substantially only in its own plane, and separating excess particulate material from the expanded cooked product. In apparatus for carrying out the process, the dry particulate material may form the working substance 38 of a fluidised bed 31 which may be fluidised using hot air. Products to be expanded are passed through the bed on open mesh conveyors 34, 35, 36 and expansion is restrained by an open mesh belt 37. <IMAGE>
Patent GB-2009965-A (GB)
Title: A flexibly programmed control apparatus
IPC: G05B19/08
Filed: 1978-12-07
Abstract: A multiplicity of appliances are controlled from a central location by independent time programmes which can be readily modified. The output channels of a controller are each displayed as a slot, or mark, (33) in a cover plate (34), with graduations representing time over the recurring period expressed in the length of the slot. The channel is flexibly programmed by the insertion of alternate 'on'/'off' pins (31, 32), distinguished by colour or mark, to the desired number of operating sequences during the period, the time a particular on/off even happens being related directly to the position of a pin in the slot. The pins connect a perpendicular conductive strip (14) to the conductor (17) or (18) depending on whether it is an 'on' or 'off' pin. The strips (14) are sequentially rendered active by a distributor (10). The output from the conductors (17, 18) activates a bistable relay (21) which when activated by an 'on' pin provides electrical power to an appliance via a mode selector switch (26). <IMAGE>
Patent GB-2014268-A (GB)
Title: Supply line support ducting
IPC: H02G3/04
Filed: 1979-01-12
Abstract: A transmission line carrier for the arrangement between a moveable consumer and a stationary connection comprising a row of tubular members which can be angled with respect to one another and engage in one another, including an alternating arrangement of wide tubular members with inwardly directly abutments and narrow tubular members with outwardly directed abutments. Each wide tubular member is shorter in the vicinity of a cross-section half thereof approximately by the width of a channel, which channel is arranged between the abutments of each narrow tubular member.
Patent GB-2022664-A (GB)
Title: Improvements relating to apparatus for assembling windows
IPC: E06B3/06
Filed: 1979-03-16
Abstract: Apparatus for assembling windows uses a glass pane as a base around which the frame is progressively placed and then secured together. A pane is first located and oriented and then transferred to successive stations by suction pads (8) which leave the edges free. At a first group of these stations channelled frame elements are sequentially pressed onto the edges. At a further station the junctions of the frame elements are urged together and secured by screws. The glazed frame is then moved on either completed or for securing of further frame elements around unglazed areas receiving movable panels. All these operations can be automated, information from the original pane being used to govern the delivery and securing of appropriate frame elements, and window assemblies of different types and sizes can be made in random succession. The preferred arrangement uses a multi-armed carousel (1) which carries panes by suction pads at the arm ends. <IMAGE>
Patent GB-2045292-A (GB)
Title: Button Sewing Machines
IPC: D05B73/12
Filed: 1979-03-28
Abstract: A sewing machine for sewing buttons onto fabric including a workbed for supporting the fabric, a button clamp for holding a button during sewing, a needle located above the workbed, a looper located below the workbed for co-operation with the needle, characterised in that a cutting means (20) is provided between the workbed and looper, the cutting means being selectively operable to cut the sewing thread located below the workbed. <IMAGE>
Patent GB-2021224-A (GB)
Title: Pipe Joint and Method of Assembly
IPC: F16L47/24
Filed: 1979-05-14
Abstract: An oil pump inlet screen assembly (10) adapted to be immersed in an oil sump comprises a filter screen (20) provided with a housing and a lift pipe (12) adapted to be inserted at one end into an oil pump housing opening (16). The housing and the lift pipe are moulded integrally of plastics material. A metal eyelet (40) is received over the pipe end and in press fitted into the pump housing opening (16). The eyelet includes concentric cylindrical portions respectively disposed internally and externally of the pipe end and an external flanged end portion (46) which embraces a circumferential rib (45) on the outside of the pipe both to retain the eyelet on the pipe end and to function as a stop to limit press-fit insertion of the pipe end into the pump housing opening. <IMAGE>
Patent GB-2057825-A (GB)
Title: Apparatus for playing games
IPC: G06F19/00
Filed: 1979-07-23
Abstract: Apparatus for playing a game including a portable control device comprising a computer 22, a keyboard (20) input interface 24, a plug-in data storage device such as a ROM 18 and a video input interface 26 for connection to a conventional domestic television receiver. The computer is programmed, e.g. by inserting a programme ROM, to respond in accordance with the rules of the game, to the stored data and coded instruction input via one or more keyboards to generate a video display. Apparatus for playing bridge is described but different games can be played by changing the programme ROM and legends on or associated with the keys of a standard non-encoded keyboard. <IMAGE>
Patent GB-2038427-A (GB)
Title: Bearing Arrangement for Roller Assembly
IPC: F16C35/067
Filed: 1979-08-20
Abstract: The invention relates to a bearing arrangement for a roller assembly and a special support for the assembly. The assembly generally comprises two bearing arrangements mounted one on each end of a roller shaft, each bearing arrangement comprising a cylindrical housing 11 open at one end and presenting parallel surfaces engageable with the support for the assembly to support each housing against rotation. An outer bearing ring 24 is frictionally retained in said housing and an inner bearing ring 23 is frictionally retained on the adjacent shaft end 28b. An annular seal 32 closes the open end of the housing. Each housing includes, at its closed end, at least one opening 39 through which a tool can be inserted to assist the assembly or dismantling of the shaft and bearing arrangement. The roller assembly proposed by the invention provides a simple and efficient assembly which can be readily broken down to facilitate replacement defective parts. <IMAGE>
Patent GB-2031328-A (GB)
Title: Improvements in the production of biscuit dough
IPC: A21C3/04
Filed: 1979-08-21
Abstract: Dough from a bulk supply conveyor 11 and hopper 10 is sheeted directly to a thickness suitable for baking biscuits by passage of the dough through a three roll unit 12, 13, 14 which provides between the rolls successive gaps, the first 15 of which does not exceed 10 mm in width and the second 16 of which does not exceed 5 mm in width, the ratio of the widths of the two gaps 15, 16 being approximately 2:1. The supply level is controlled by a capacitance probe 17 and the thickness of the dough sheet is controlled by a sensor 19. The shafts 27, 31 of rolls 13, 12 are mounted eccentrically to enable gap adjustment. Roll 13 is provided with longitudinally extending flutes (21, Fig. 2 not shown) to direct the dough into gap 15 and rolls 12, 14 are provided with an anti-friction coating e.g. sprayed molybdenum and p.t.f.e. <IMAGE>
Patent GB-2032274-A (GB)
Title: Improvements relating to fire fighting sprinklers
IPC: A62C37/10
Filed: 1979-09-07
Abstract: An in-line fire fighting sprinkler unit comprises a tubular body 1 having female screwthreaded portions 3 at both ends to enable it to be connected in a fire fighting liquid supply pipe. The body 1 has a series of orifices 4 through its wall and is surrounded by a sleeve 2 having a frusto-conical deflector surface 5 which faces the orifices 4. The surface 5 is preferably provided with slots 6 offset angularly from the orifices 4, and the surface 5 with its slots 6 form a deflector which deflects streams of liquid issuing from the orifices 4 and breaks them up and spreads them to provide a uniform distribution of liquid around the unit. <IMAGE>
Patent GB-2031085-A (GB)
Title: Floating caliper disc brake
IPC: F16D65/097
Filed: 1979-09-25
Abstract: A floating-caliper disc brake includes a brake-shoe holding spring (12) received in a radially outwardly open aperture (11) in the caliper (2) which spring (12) acts on brake shoes (6, 7) to urge them into engagement with abutment surfaces (29, 30) of a brake support member (1). As shown, the holding spring (12) is rigidly secured to the brake caliper (2) via a bolt (21) having an enlarged head (23) which is fastened to an end wail (22) of the aperture (11), and the spring (12) is formed of two leaf springs (14, 15) arranged as seen in Figs. 1, 3. The spring may also be formed integrally (see Figs. 6, 7). <IMAGE>
Patent GB-2052691-A (GB)
Title: Motor Vehicle Brake Pedal
IPC: B60T7/06
Filed: 1979-10-04
Abstract: A motor vehicle brake pedal of the variable lever arm type including a pedal lever (10) pivotally mounted on a fixed part of the motor vehicle chassis so that it can be depressed by the foot of the driver against the action of a return spring, and a plunger (38) engaging the piston (42) of the master brake cylinder and with the other end secured to a bifurcated bracket (18) pivotally connected to the pedal lever (10). The bracket (18) includes a cam follower (34) riding on a cam surface (36) of the pedal lever (10) to keep the plunger (38) constantly in a substantially horizontal position and exert a maximum force thereon in all positions of the pedal lever (10). <IMAGE>
Patent GB-2041403-A (GB)
Title: Bioconversion of Agricultural Wastes into Proteinaceous Animal Feed
IPC: A23K1/00
Filed: 1980-01-04
Abstract: The present invention is directed to the conversion of agricultural waste material, including animal manure and crop wastes, by a fermentation process using edible microbial organisms, into proteinaceous animal feed products.
Patent GB-2041564-A (GB)
Title: Pen combined with slide-viewer
IPC: G03B29/00
Filed: 1980-01-18
Abstract: A slide-viewer pen (1) comprises a writing element (2) in the casing (3) whereof is associated a box-like body (5) defining in its inside a cylindrical seat (11) rotatably housing a translucent material drum (20) the side surface of which is engaged a filmstrip (22). Through the side surface of the cylindrical seat (11) a viewer window (12) is formed aligned with the optical axis of an objective (7) carried by the body (5) itself. <IMAGE>
Patent GB-2071681-A (GB)
Title: Anthraquinone Dyestuff
IPC: C09B1/32
Filed: 1980-03-12
Abstract: A dyestuff which is soluble in fluoroinated organic liquids to yield coloured solutions has the formula (R1)(R2)-A-(R3)(R4) wherein A is the anthraquinone group, at least one of the R groups is an (-ORf)- substituted anilino group where Rf is a perfluoroalkenyl group of from 3 to 20 carbon atoms and the others are hydrogen, alkyl of up to 6 carbon atoms or a group -ORf. A process for the preparation of such dyestuffs which comprises reacting the corresponding anthraquinone dyestuff containing an (-OH)-substituted anilino group with an ethylenically unsaturated perfluorocarbon compound in a polar aprotic solvent and in the presence of a base is described.