baber/WOPTO huggingface dataset:
Patent GB-2034915-A (GB)
Title: Beam splitters for endoscopes comprising a dual observation system
IPC: G02B23/24
Filed: 1979-07-06
Abstract: This invention relates to beam splitters for use with endoscopes of the kind comprising a dual observation system whereby the image may optionally be adjusted for different proportions of the light intensity for the observer and the joint observer or a film or television camera by means of the optical system of the endoscope. According to the invention the beam splitter comprises two thin glass plates having a partial specular finish or partial reflection, at least one of said plates being shiftable to bring the partial specular finish in confrontation to an angled position in the beam path of the endoscope.
Patent GB-2035212-A (GB)
Title: Method and apparatus for magnetic printing
IPC: G03G19/00
Filed: 1979-11-08
Abstract: An image area 20 is created magnetically on a magnetizable layer 14 and developed using a liquid magnetic ink 22. The magnetic ink is applied to a non-wettable surface 16 that covers the magnetizable layer 14, and then transferred to a desired copy substrate 23. The magnetizable layer 14 may be supported on a base 12, and the non-wettable surface 16 may be solid or liquid. <IMAGE>
Patent GB-2041126-A (GB)
Title: Brake control valves
IPC: B60T13/14
Filed: 1980-01-08
Abstract: A stirrup type hydraulic brake valve has an operating plunger 4 controlling an inlet valve 17, 21 and an exhaust valve 8, 15. A port 14 leads to the brake line and port 3 leads to a reservoir. To avoid momentary opening of the inlet valve if the exhaust line is externally pressurised the exhaust valve member 8 is adapted by means of a hole in the valve, which may be fitted with a non-return valve or a seal, to admit fluid under pressure from the exhaust chamber to the delivery chamber, providing that the exhaust connection is not closed by depression of the plunger 4. <IMAGE>
Patent GB-2073289-A (GB)
Title: Improvements in or relating to grids manholes and the like
IPC: E03F5/06
Filed: 1980-03-21
Abstract: A cover unit for a hole in a road, pavement or the like, for example a grid or manhole cover, has three nesting parts 11, 12, 13 with conforming surfaces so that, during re-surfacing of the road the intermediate part 12 can be removed to prevent the unit being proud of the surface after an upper layer of road surface has been removed. The intermediate part is replaced when the upper layer is replaced. <IMAGE>
Patent GB-2068492-A (GB)
Title: Nut with protective cap
IPC: F16B37/14
Filed: 1980-06-16
Abstract: A nut for a screw bolt has a protective cap (2) secured nondetachably to one side (4). In order to produce a nondetachable and fluid-tight connection between the nut and cap without the spanner attack surface being impaired, whilst achieving minimum material consumption and permitting adaptation of the cap to different lengths of bolt, a depression (6) is produced in the side (4) and the cap secured within it. The cap (2) may be alternatively of disc-shape, Fig. 6 (not shown). The cap may be secured by deforming the depression rim as at 8 or by adhesive or solder. <IMAGE>
Patent GB-2057274-A (GB)
Title: Improvements relating to baby soothers
IPC: A61J17/00
Filed: 1980-08-20
Abstract: The present specification describes a baby soother of the type having a teat, a handle extending in a direction away from the text and a flange forming a shield disposed between the teat and handle. Soothers of this type are usually constructed from separately formed components as integral forming is expensive. However, there is usually the problem that one or more component parts can be removed allowing all of the other component parts to become loosened or actually separated. This is dangerous as a baby may swallow such separated parts. As shown the soother comprises a closure member (2) ultrasonically welded to a wall (8) on the shield (3) to define a cavity therebetween. A teat (4) extends from within the cavity wherein it is secured by a plug (10), through an aperture in the shield (3) away from the handle (1). The teat (4) and handle (1) are held firmly in position preventing easy disassembly. <IMAGE>
Patent GB-2063516-A (GB)
Title: Control means for adjusting members
IPC: G05B19/07
Filed: 1980-10-08
Abstract: A control means for adjusting members which are actuable in a multi-stage or continuous manner in plastics processing machines, comprises a reference value programmer for issuing reference values to the adjusting member, an actual value generator and an evaluation circuit which forms correction values for the adjusting member, in dependence on the reference value-actual value differences. Before the plastics processing machine is put into operation or after repairs thereon, a checking value programmer (20, 22) is triggered, for issuing a series of checking values (P1, P2 ... Pn) which are distributed over the adjustment range of the adjusting member (1). The evaluation circuit (21) forms correction values (K1, K2 ... Kn) according to the differences between the checking value and the actual value, and stores the correction values in a correction value memory (23). The adjusting values initiated by the reference value programmer (15) are corrected in accordance with the associated correction values (K1, K2 ... Kn). <IMAGE>
Patent GB-2066008-A (GB)
Title: Angular modulators
IPC: H03C3/00
Filed: 1980-12-08
Abstract: A narrow-band, theoretically distortionless, carrier modulated in accordance with individual values occurring with a periodic interval T is generated by using a pulse-position modulator (2) to produce short pulses whose positions are related to successive values, and feeding the latter pulses to a bandpass filter (4) of bandwidth F centred on a frequency f, where F=1/T and f>>F. The F. The modulated carrier, represented by the frequency f and having a bandwidth F, is generated by the impulse-response of the filter to the short pulses fed thereto. The values may be amplitude samples, sampled at periodic intervals T, of an analogue signal of bandwidth F/2 or less, the PPM pulse positions corresponding to the sample amplitudes. With digital data, the input sampling is not required. At the receiver, after demodulation, the signal is sampled at corresponding points in the original modulation signal of the transmitter and then filtered to reproduce the original modulation signal. <IMAGE>
Patent GB-2090141-A (GB)
Title: Medical sterilisation cases
IPC: A61B19/02
Filed: 1980-12-31
Abstract: A medical sterilisation case (C) comprises a base portion with a base wall (B) and a cover portion with a cover wall (T), the base wall (B) being provided with openings (O) receiving retaining elements (1) for retaining medical articles (I) to be sterilised in the case. Each element (1) comprises a disc-shaped foot (10), the diameter of which is greater than that of the opening (O), a cylindrical neck (20) and a generally conical spigot portion (30). The neck (20) forms a constriction or waist seated in the opening (O) and the spigot portion (20) has a convex free end surface (36) which merges into the adjoining wall surface (34) of the spigot portion. The lower part of the spigot portion has a greater diameter than the opening (O) whereas the upper part of the spigot portion has approximately the same diameter as or a smaller diameter than that of the opening so that for mounting of the retaining element on the base plate, the spigot portion can be pushed through the opening until the neck (20) detents therein. The axial length of the spigot portion (30) is such as to leave between the lower surface of the cover wall (T) and the uppermost point of the end surface (36) a gap (9) which is smaller than the height (b) of the article (I) retained by the spigot portion. <IMAGE>
Patent GB-2068085-A (GB)
Title: Check valve
IPC: F16K15/04
Filed: 1981-01-16
Abstract: There is disclosed a check valve 10A for use with an air compressor or other source of gas subject to high frequency pressure pulses wherein a P.T.F.E. ball 23 is spring 20A pressed into engagement with a seat about a port 19A through a wall in the body of the valve which connects its inlet 12 and outlet 13. A P.T.F.E. cup 24 disposed between the ball and spring has a skirt 24A which surrounds the side of the ball opposite the seat, and the spring is held between the cup and a cap 17 which closes the outer end of a side opening through the valve body. The inner diameter of the skirt is closely spaced from and generally concentric with the ball when seated so that only the side of the ball opposite the seat is frictionally engaged by the cup as it is lifted from the seat. The cup and ball may be moved through a side opening in the valve body upon removal of the cap to permit insertion or replacement of the ball and cup assembly. <IMAGE>
Patent GB-2069914-A (GB)
Title: Improvements in or relating to hand tools
IPC: B27L7/00
Filed: 1981-02-12
Abstract: A hand tool, for example a shafted garden tool such as a spade or fork, or other tool having a cutting edge or point for digging, chopping or post-hole-boring comprises a tool head (10) or holder therefor carried by a shaft portion (14) and an impactor member (16), movable longitudinally of the shaft portion to apply impact blows to the tool head or holder. Such a tool is of particular utility in situations, such as digging trenches in, or cultivating, hard, gravelly or clayey soil, where the force which can be applied to the tool by hand or foot is inadequate, yet the use of a power tool is unjustified. The tool may comprise a plurality of interchangeable shaft portions, each with different tool head, for example spade, fork, chisel, pick-axe, punner. <IMAGE>
Patent GB-2101480-A (GB)
Title: Filling apparatus
Inventor: SEDDON CHARLES RICHARD DOUGLAS
IPC: B68G7/06
Filed: 1981-04-11
Abstract: An apparatus for filling cushions and the like articles with shredded foam material comprises a container for holding the shredded material 12 adapted to maintain the material in an agitated state by means of paddles 14, a duct 26 leading from the container past an exit port 28 and means such as a paddle fan 24 for urging the material through the duct 26. A deflecting plate 32 is located in the duct and is operable selectively to deflect material through the exit port 28 or back into the container 12. <IMAGE>
Patent GB-2074116-A (GB)
Title: Rig structures
IPC: B63H9/06
Filed: 1981-04-16
Abstract: A rig structure comprises a mast 2 secured to a vessel 1, the upper end of the mast having an inclined support housing 5 bored to rotatably receive a stem or sprit 4 rigidly secured to an elongate yard 3 depending normally, radially or obliquely thereof at the centre of its length. The sprit 4 may be an integral or separate component of the yard and is rigidly affixed to a first spool or other drum apparatus. A corresponding spool or drum 7 is affixed to the lower portion of the mast. By means of a double line 9, rotating the secondary spool 7 rotates the yard and enables the sail (not shown) to be set with the yard at right angles to the direction of the wind, without altering the course of the vessel. <IMAGE>
Patent GB-2077444-A (GB)
Title: Determining at least two parameters of a patient's respiratory system
IPC: A61M16/00
Filed: 1981-06-05
Abstract: The outputs of a pressure sensor (5), a flow sensor (2) and a volume determining device (3), which may determine the volume by integrating the flow rate with respect to time, are connected to a monitoring unit (7) which in turn is connected to a calculating unit (6), and optionally to a storage unit (8). During each respiratory cycle the monitoring unit (7) supplies the calculating unit (6) with at least two sets of sensed values of the pressure, the flow rate and the volume from which the calculating unit (6) then calculates the required parameters of the respiratory system. These parameters could be, for example, a linear component of the airway resistance, a quadratic component of the airway resistance, a compliance of the lungs, and an alveolar residual pressure. <IMAGE>
Patent GB-2080291-A (GB)
Title: 6-Hydrazono-pyrido[2,1- b]quinazolin-11-ones, the salts thereof and processes for their preparation
IPC: G16H40/67
Filed: 1981-06-23
Abstract: Compounds of the general formula   <IMAGE>  (wherein R, R<1> and R<2>, which may be the same or different, each represents a hydrogen or halogen atom or a nitro, carboxy, cyano, C1-4 alkoxy, C1-4 alkyl, amino, or hydroxy group or an alkoxycarbonyl group in which the alkoxy contains 1 to 4 carbon atoms; or R and R<1> together represent a methylenedioxy group, and R<2> represents a hydrogen atom;  R<3> represents a hydrogen atom or a C1-4 alkyl group; R<4> represents a hydrogen atom or a C1-4 alkyl group, a naphthyl or pyridyl group or a phenyl group substituted by 1 to 3 substituents, which may be the same or different, selected from halogen, C1-4 alkyl, C1-4 alkoxy, phenoxy, hydroxy, nitro, amino, cyano, carboxy, alkoxycarbonyl in which the alkoxy moiety contains 1 to 4 carbon atoms, alkanoyl in which the alkyl moiety contains 1 to 4 carbon atoms, methylenedioxy, trifluoromethyl, phenyl and mono- or di-alkylamino in which the alkyl moiety contains 1 to 4 carbon atoms; and each dotted line represents an optional further bond and the salts, optical and geometrical isomers and tautomers thereof are intermediates in the preparation of Rutaecarpine and the analogues thereof. The compounds of formula I may be prepared by reaction of a pyrido[2,1-b]quinazolin-11-one with a diazonium salt or with hydrazine or a derivative thereof.
Patent GB-2082851-A (GB)
Title: Electric plugs
IPC: H01R13/68
Filed: 1981-08-18
Abstract: An electric plug which may be non-rewirable is provided with a fuse holder 2 to hold a fuse 1 within the plug body, the holder and fuse being withdrawable through an aperture in the outside wall of the body to allow replacement of the fuse, the fuse holder being permanently attached to the body. The fuse holder may be attached by (a) a strip of flexible material 8, (b) a cut-out wall portion forming a hinge (Fig. 3), (c) an inner flange which is wider than the aperture (Figs. 6-10), or (d) prongs having flanges engaging the inside wall surface (Figs. 11 and 12). <IMAGE>
Patent GB-2105080-A (GB)
Title: Combined credit and security card
Inventor: JEZIERSKI EUGENIUSZ CZESLAW JA
IPC: G06K19/067
Filed: 1981-08-24
Abstract: A combined credit and security card which incorporates one or more magnetic stripes for carrying coded security data and hidden within the card one or more r.f. tuned circuits capable of being interrogated remotely. The card when interrogated can activate security locks etc. The magnetic stripes can carry coded identification data. Externally the card can be provided with a photograph of the holder. The r.f. circuits can incorporate fusible links such that the card can be automatically cancelled when subjected to an r.f. field exceeding a predetermined strength. <IMAGE>
Patent GB-2104721-A (GB)
Title: Photovoltaic schottky-barrier elements
Inventor: MCEVOY AUGUSTINE JOSEPH
IPC: H01L31/07
Filed: 1981-08-28
Abstract: A photovoltaic schottky-barrier element comprises a ruthenium dioxide conductive layer on a semiconductor substrate (preferably CdS), and may form the photovoltaic element of a solar cell or the electrode of a photochemical cell. The solar cell is made by depositing an ohmic contact (preferably indium) on the opposite side of the semiconductor to the ruthenium dioxide. The photoelectrochemical cell may comprise the element and a platinum counter electrode immersed in a Na2SO4 solution. <IMAGE>
Patent GB-2104791-A (GB)
Title: Liquid separator
Inventor: TOMS A W
IPC: B01D17/04
Filed: 1981-09-03
Abstract: A suspension of oil and water is introduced at (22) to a liquid separator, including a porous bed defined between a top grill (25), an entry grill (26), and an exit grill (15). The water flows largely horizontally through the bed to exit grill (15) for collection over a weir (18) whose level is above the top grill (25) but below a weir (32) for collection of the oil. Oil separates partly in upstream settling space (21), to flow over weir (24), and partly coalesces in the bed and rises through grill (25) to weir (32). Grill (26) excludes solids from the bed, but the bed may be reverse-flow cleaned automatically if it clogs. The bed comprises packed hollow particles.   <IMAGE>
Patent GB-2086026-A (GB)
Title: Pumping arrangements
IPC: F04B9/107
Filed: 1981-09-11
Abstract: In a system using an absorption refrigeration cycle, there are an absorber (1) for absorbing a gas in a liquid; a pumping arrangement for increasing the pressure of the liquid with the gas dissolved in it and supplying it to a generator (4) where such gas is driven off under high pressure; and a return path for liquid from the generator to the absorber. The pumping arrangement is adapted for using power available from a drop in pressure of the liquid between the generator and the absorber to assist in pumping the liquid with the gas dissolved in it. In one example, the pumping arrangement comprises: a cylinder (9) having a chamber; partition means (10) in the chamber for reciprocating therein; on one side of the partition means, a first inlet duct (12) connected to the output of the generator, including a valve (13) which may be opened and closed, and a first outlet duct (14) connected to the input of the absorber, including a valve (15) which may be opened and closed; and, on the other side of the partition means, a second inlet duct (16) connected to the output of the absorber, including a valve (17) which only allows flow in one direction, and a second outlet duct (18) connected to the input of the generator, including a valve (19) which only allows flow in the said one direction. <IMAGE>
Patent GB-2089127-A (GB)
Title: Venting to capacitor cut-out
IPC: H01G2/14
Filed: 1981-12-03
Abstract: In a capacitor (1) with a pressure-responsive cut-out, the capacitative element (2) is submerged in a solid encapsulant (6) within a fluid-tight container (4); there is provided adjacent to the element, a passage (e.g. closed cell foam 5 or a closed thin-walled tube, which is substantially fluid-tight under normal operating conditions but under fault conditions permits gases, emitted from the element, free access to operate the cutout. When the passage is a layer of closed-cell foamed plastics material (5) contacting the inner surface of the circumferential wall of the container, with a rough surface at least at its interface with the encapsulant, the heat generated under fault conditions softens the plastics foam to allow gas escape. In the second embodiment, the thin-walled tube ruptures or softens. <IMAGE>
Patent GB-2096256-A (GB)
Title: Improvements in or relating to railway vehicles
IPC: B61H1/00
Filed: 1982-02-19
Abstract: A railway vehicle has wheels 1 with associated suspension units 4 which are laterally spaced from the associated wheel 1. Brake assemblies 5, 6, 7 are provided for each wheel 1 and includes an actuator assembly 7 which is located between the wheel 1 and suspension unit 4. A railway vehicle has a brake assembly 5-7 with a combined brake return and slack adjuster mechanism. The brake assembly includes a pivotally mounted brake arm 5 carrying a spring- mounted brake block for engaging the wheel tread 12. The brake arm has two friction surfaces 33a, 33b each engaging with a respective friction surface 29a, 30b on one of two torsionally resilient components 29, 30 whereby pivotal movement of the brake arm 5 to apply the vehicle brakes imparts torsional force to the components 29, 30 up to a point beyond which slip occurs at one or more of the engaging friction surfaces 29a, 33a, and 30b, 33b. This slip provides for slack adjustment and the torsional force in the components 29, 30 provides for brake return. <IMAGE>
Patent GB-2094663-A (GB)
Title: Crush roll pair for relatively soft material such as coal
IPC: B02C4/30
Filed: 1982-03-11
Abstract: A crush roll pair (1, 2) for relatively soft material such as coal, the surfaces of said rolls being provided with tooth rings (3, 4) affixed in annular configuration. The rolls rotate at different peripheral velocities in opposite directions, whereby the interspace of the rolls constitutes the nip of a crusher. The tooth rings (3, 4) on different rolls (1, 2) are located to be intercalated with each other. <IMAGE>
Patent GB-2098194-A (GB)
Title: Method for dewatering mineral suspensions
IPC: C02F11/121
Filed: 1982-03-11
Abstract: In a method of dewatering minerals suspensions, tensides or a mixture containing tensides is added to the suspensions in an amount between 0.03% and 2%, wherein the tensides or mixture thereof has an HLB number falling within the range 8 to 12 or an H/L number falling within the range of 50% to 150% and thereafter the suspensions are dewatered.
Patent GB-2096483-A (GB)
Title: Catalytic heater
IPC: F24C1/10
Filed: 1982-04-02
Abstract: A catalytic heater developed to reduce a significant amount of back radiation loss is provided with a radiation reflective surface between the rear portion of the back of the frame, and the back of the catalytic bed. The reflective surface may be a polished front face of the back of the frame, or an independent reflective surface positioned between the catalytic bed and the back of the frame. Optionally fiberglass or equivalent type of insulating material is positioned between the reflective surface and the back of the frame. When a reflective surface between the back of the frame and the back of the catalytic bed is employed, the reflective means reduces the temperature of the exterior portion of the back, and increases the temperature exteriorly of the catalytic bed. A comparison between a like kind of catalytic heater without the heat reflective surface demonstrates a definite temperature reduction on the back of the frame with like BTU output of the same heater.
Patent GB-2098035-A (GB)
Title: Improved sequential color switch for beam penetration CRT
IPC: H04N9/29
Filed: 1982-04-22
Abstract: An improved sequential color switch for a beam penetration CRT (22) includes a high voltage power supply (10) and a high voltage transformer (14). A feedback circuit (52) senses the DC level in the signal waveform applied to the transformer and feed it back to the input of a driver (44). A low-pass filter (48) connected to the input of the driver also senses the DC level in the signal waveform applied to the drive and adjusts the reference input (50) of the high voltage power supply (10) to correspondingly change its DC high voltage output level. Essentially, this removes any DC level from the primary winding of the high voltage transformer while at the same time adjusting the output level of the high voltage power supply by an amount which is proportional to the average DC level of the input signal waveform, this allowing frequent steps in anode (24) voltage to provide colour changes without the need for recovery periods. Dynamic focus is provided by winding (65) feeding electrode (66). <IMAGE>
Patent GB-2122307-A (GB)
Title: Hydraulically-expansible key
Inventor: HOWARD DAVID ROBERT
IPC: B21B31/07
Filed: 1982-06-17
Abstract: A key for use in the aligned keyways of a roll neck of a rolling mill and a sleeve of a hydrodynamic oil film bearing is hydraulically expansible to form a substantially rigid abutment between the sleeve and the roll neck. The key consists of a body (1) having a number of cylinders (3) which open to one face and each of which contains a piston (5). The pistons (5) can be urged outwardly of the body (1) by supplying liquid under pressure to the cylinders (3) through a restricted passage (9). A bore (11) formed in the body (1) contains the liquid which is compressed by a spring- biased plunger (15). A plunger sleeve (17) on the plunger is located externally of the body (1); when the sleeve ring on the roll neck is tightened to urge the bearing sleeve along the roll neck, it engages the plunger sleeve (17) and causes compression of the liquid. <IMAGE>