baber/WOPTO huggingface dataset:
Patent GB-2245158-A (GB)
Title: Drawer mechanism
Inventor: TAMURA SEIICHIRO
IPC: H05K5/02
Filed: 1991-05-10
Abstract: In a mechanism for controlling the travel of a structural member, such as a drawer 2 mounted in a cabinet 1, the drawer is formed with a pair of rails 7, 7 which slide on fixed rails 3, 3 formed inside the cabinet. A movable traveller member 9 is fixed to each of the drawer rails 7 and comprises a coil spring 20 for automatically closing the drawer 2. A catch 22 is formed inside each movable traveller member 9 for holding them at a desired position to prevent the drawer 2 from closing when it is fully pulled out. At this point the drawer 2 may be disengaged from the movable member 9. Damping mechanisms 12 are geared to a rack 5 formed on each fixed rail 3 to prevent the drawer 2 from closing abruptly. <IMAGE>
Patent GB-2249841-A (GB)
Title: Detecting cable faults
Inventor: FROST NICHOLAS JAMES
IPC: G01R31/02
Filed: 1991-09-17
Abstract: Faults in a cable (10) comprising an inner core (20) and conductive armouring (22) are detected in three stages. First, the existence of a fault is detected by measuring the resistance of the conductive armouring (22) and comparing this with the expected resistance of the armouring (22). This detection makes use of an alternating signal having a frequency less than 1 kHz. Then, the resistance of the cable is measured using measuring equipment (30) connected to the ground via three ground spikes (11A, 11B, 11C). By first measuring the resistance between each pair of ground spikes (11A, 11B, 11C), the resistance (Rg1) of one ground spike can be determined and this resistance can then be eliminated from the measurement of cable resistance. By repeating this operation at a remote point on the cable (10) using further measuring equipment (31) connected to ground via further ground spikes (12A, 12B, 12C) the location (13) and resistance value (Rf) of a fault in the cable (10) can be determined. Data may be transmitted between the measuring equipment (12, 13) at the frequency less than 1 kHz via the armouring. The use of a low frequency reduces capacitative effects.
Patent GB-2260485-A (GB)
Title: Child's chair
Inventor: HEITHUS ROGER
IPC: A47D1/02
Filed: 1991-10-10
Abstract: A child's chair having a stand consisting of two side frames each of which comprises first and second legs (12, 18; 14, 20) which are pivotally connected to one another at an intermediate point (26, 28) along their length. A seat (24) is pivotally mounted on the first legs (12, 14) at a position above the intermediate point and is connected to each second leg (14, 20) by a respective sliding coupling. Each sliding connection comprises a flat strip (46, 56) secured parallel to and spaced from the corresponding second leg (18, 20) at each end and a plastics block 42 having a slot through which the strip 46, 56 projects. A rod 40 projects from the seat and is journalled in a hole in the block 42. <IMAGE>
Patent GB-2248995-A (GB)
Title: Improvements relating to video signal processing
Inventor: BALDWIN JOHN LEWIS EDWIN
IPC: H04N5/202
Filed: 1991-11-21
Abstract: In non-linear digital video processing, high frequency components resulting from the non-linearity may appear as spurious low frequencies due to mirror image spectral reflection in the sampling frequency fs. The non-linear circuit may be a gamma corrector (35). The effect of the alias components is reduced by the use of a modifier circuit (50) before the gamma corrector, and a corresponding equaliser circuit (52) after it. The modifier attenuates the high frequency signal components, especially in the region fs/4 to fs/2. The equaliser substantially reinstates the overall frequency response. Both modifier and equaliser may be transversal filters (figures 5 to 8) which, more generally, may be one dimensional or two dimensional (figures 9 and 10). The system is also particularly relevant to progressively scanned sources; including telecine.
Patent GB-2261828-A (GB)
Title: Pipeline filter
Inventor: SHERRATT BARRY RAYMOND
IPC: B01D35/02
Filed: 1991-11-27
Abstract: A filter for connecting into a pipeline, e.g. upstream of a washing machine water inlet, comprises an open-ended tubular filter element 13 arranged for outward flow. The element is cleaned by diverting the flow from inlet 3 to flush the upstream, interior face of the element. In Fig. 2 this is done by closing upstream valve 20, removing lower threaded plug i 9 and briefly opening valve 20 again. In Fig. 3 there is no valve 20, and plug 19 is replaced by a stopcock which is briefly opened to flush the element. Fig. 4 resembles Fig. 2, but valve 20 is incorporated in main housing 2. <IMAGE>
Patent GB-2251424-A (GB)
Title: Bale lifter cradle
Inventor: METCALF STEPHEN
IPC: A01D87/12
Filed: 1991-11-27
Abstract: There is disclosed a bale lifter cradle (10) which is adapted to be mounted at the rear of a tractor and which comprises a yoke (11) connectable to the usual three point hitch of the tractor, a support beam (16) carried by the yoke (11), and a plurality of generally parallel lifting arms (17, 18) mounted at spaced apart positions along the length of the support (16) in order to define adjacent bale lifting forks (19), in which the support (16) is pivotally mounted on the yoke (11) for movement about a substantially horizontal pivot axis (23, 24), whereby the bale lifting forks (19) can be rocked about this axis in order to lower a selected fork (19a) to a bale-receiving position suitable for slidable engagement under a bale (21) while the remaining fork(s) (19b) takes up a raised position, and so that the selected fork (19a) can then be raised from the bale-receiving position with the bale (21) loaded thereon. Pref. the device is for picking up a pair of wrapped round bales and does not damage the wrapping. <IMAGE>
Patent GB-2262299-A (GB)
Title: Depth indicator for use in the repair of road surfaces
Inventor: SINGLETON ALAN
IPC: E01C23/01
Filed: 1991-12-14
Abstract: A method for the reinstatement of a highway surface following its excavation, comprises inserting into the excavation a depth indicating means having depth markers thereon to indicate appropriate depth levels below the top of the highway surface to which appropriate types of filling agent are to be used to fill the excavation; and filing the excavation, with the depth indicating means still in position inside it, with each appropriate filling agent up to the level of its respective depth marker. The method is simpler to use than existing techniques, and does not require the separate calculation of appropriate depths and thicknesses, or compensation for an excavation the bottom of which is not parallel to the top surface of the highway along its entire length. The invention also provides a depth indicating means for use in the method.
Patent GB-2251717-A (GB)
Title: Automatic tracking circuit
Inventor: JO SEOG HYEON
IPC: G11B5/584
Filed: 1991-12-19
Abstract: An automatic tracking circuit for a VCR comprises a first comparator COMP1 for comparing input sampling data with a reference voltage, an integral part 10 for integrating the standardized sampling data from the first comparator COMP1, and a second comparator COMP2 for comparing the sampling data integrated through the integral part 10 with an envelope level. The tracking of a tape is automatically adjusted during the whole operation of the VCR as well as at the beginning of the playback of the tape, by monitoring the envelope level. Thus, users can watch a noiseless fine picture without the need for manual adjustment of the tracking. <IMAGE>
Patent GB-912938-A (GB)
IPC: B01J20/34
Abstract: 912,938. Regenerating zeolitic molecular sieves. UNION CARBIDE CORPORATION. June 30, 1960 [July 2, 1959], No. 22900/60. Drawings to Specification. Class 1(3) Crystalline zeolitic molecular sieves which have become deactivated by the deposition thereon of non-volatile carbonaceous matter are reactivated by contact with an oxygen-containing gas preheated to a temperature between 315‹ and 480‹C., the oxygen content of the gas being such as to maintain the temperature of the sieve bed below 621 ‹C. and the water vapour concentration at the outlet of the bed below 206 mm. of mercury. It is preferable that the burning-off temperature is from 480‹ to 570‹C. and the molecular sieve bed itself may be preheated to a temperature of 260‹C. by a hot inert gas; alternatively the molecular sieve bed may be preheated under reduced pressure. The initial burn-off may be effected with a hot oxygen-containing gas containing less than 2 mole per cent of oxygen and, after partial burning-off, the oxygen content of the hot gas may be gradually increased up 100% to burn residual carbonaceous matter. Reference is made to the application of the process to zeolite A, D, T, X, L, and Y, described and claimed respectively in Specifications 777,232, 777,233, 868,846, 909,264, 909,266, and 912,136. Erionite, chabazite, faujasite and mordenite may also be regenerated. The carbonaceous deposits may result from the employment of the sieve to separate normal paraffins from other hydrocarbons, to recover olefins from refinery streams, to remove acetylenic compounds from olefins or to remove sulfur-, oxygen- and nitrogencontaining organic compounds from hydrocarbons; they may also arise from polymerization of unsaturated compounds, from isomerization or from a decomposition of carbon-containing compounds. According to Example (1), sodium zeolite X in the form of 1À6 millimetre pellets was used to adsorb olefins from a refinery gas stream, desorption being effected by purging with ethane whilst the temperature was allowed to rise to 300‹C. When coke formation became excessive, the bed was purged with nitrogen at temperatures rising to 350‹C., whereupon oxygen was introduced with the nitrogen, causing the temperature to rise to 375‹C.; the oxygen concentration was increased to 2 mole per cent when the bed maximum temperature rose to 390‹C. The water vapour concentration in the effluent gas did not exceed 15À2 mm. of mercury. According to Example (2), pellets of calcium zeolite A, which had been employed in a gasoline upgrading process to adsorb preferentially the normal paraffins in the feed, were desorbed by reducing the pressure; adsorption was recommenced until coke deposition necessitated deactivation. This was effected by two methods:- (a) the bed was heated to 400‹C. by hot nitrogen, after which a gas containing 1 % oxygen was passed in for 49 hours and the oxygen content of the gas was then gradually increased to 21% or (b) the bed was heated to 400‹C. under vacuum and then contacted at that temperature with a gas stream containing 0À5% oxygen, after which the oxygen content of the gas was gradually increased to 21 %.
Patent GB-2263572-A (GB)
Title: Poster display frame.
Inventor: BUTLER EDWARD MAURICE PIERCE
IPC: G09F15/00
Filed: 1992-01-09
Abstract: A poster display frame is in two parts: a main body frame (20) for receiving poster material (12) and a sub-frame (40) which guidedly locates on the main frame to hold the poster material in place. The guided location of the sub-frame on the main frame is by a flange or key (34) in one engaging a recess (44) in the other to locate the two frame portions laterally but allow a degree of movement normal to the plane of the frame. The two frame portions are held together by magnetic means (60, 62) secured around the respective margins of the frame portions. The frame is able to accommodate poster materials of differing thickness. Resilient clips (24) are provided to lock the frame onto vertical poles (14). There is provision for a backboard (16). <IMAGE>
Patent GB-2255204-A (GB)
Title: Elevator apparatus.
Inventor: SAKAI YOSHIO
IPC: B66B13/14
Filed: 1992-04-16
Abstract: In an elevator apparatus, by use of a microcomputer (1), a signal is supplied to a base driving circuit (5) so as to turn driving control elements on/off to generate a pulse-width controlled voltage to thereby control the rotation of a door driving motor. An elevator stoppage signal and a door opening/closing allowing signal (8) are supplied from an elevator control means (9) to the microcomputer (1) and the base driving circuit (5). The base driving circuit (5) has a double system for its door opening operation so that it should not perform the driving of opening a door when the signal (8) shows the fact that the elevator is not in stoppage and the location is outside the zone in which the opening/closing of the door is to be allowed. <IMAGE>
Patent GB-2269716-A (GB)
Title: Bias circuit for changing class of part of multistage amplifier
Inventor: COLLINSON GLEN
IPC: H03F1/02
Filed: 1992-08-03
Abstract: A switch able bias circuit is capable of switching the mode of operation of an amplifier between a first class of operation and a second class of operation, the switching being a function of the base bias on the amplifier. In fig. 1 the second and third stages of the multistage amplifier are switched between class A for high linearity and class C for high efficiency, VDM being the switching voltage. <IMAGE>
Patent GB-2260317-A (GB)
Title: Energetic composites and method of providing chemical energy
Inventor: DANEN WAYNE CORNELIUS
IPC: F24V30/00
Filed: 1992-09-25
Abstract: Energetic compositions of matter consist of thin layers A, B of substances which will exothermically react with one another. The layers of reactive substances are separated by thin layers b of a buffer material which prevents the reactions from taking place until the desired time. The reactions are triggered by an external agent, such as mechanical stress or an electric spark. The compositions are known as metastable interstitial composites (MICs). This class of compositions includes materials which have not previously been capable of use as energetic materials. The speed and products of the reactions can be varied to suit the application. One particular composition includes aluminium and cupric oxide as reactive substances the buffer layer being formed by limited reaction between the two substances during deposition. The layers are 10 to 10000 Angstoms thick. <IMAGE>
Patent GB-2260940-A (GB)
Title: Apparatus for adjusting the circumferential register of rotary printing machines
Inventor: FISCHER CHRISTIAN MARTIN MICHA
IPC: B41F13/14
Filed: 1992-10-16
Abstract: In an apparatus for adjusting the circumferential register of a plate cylinder 1 of a rotary printing machine, continuous and precise circumferential register adjustment is made possible in that the end of the axle journal 2 of the plate cylinder is situated in a bush 8, on which is disposed concentrically and displaceably a second bush 9, which receives at its circumference a helical driving gear wheel 11; the second bush has at its face a roller bearing 14, supported on whose inner raceway is a connecting rod 16, which is connected via a centrally supported lever 18 on an actuating drive 27-34. To reduce the clearance 38 between the bushes, an expandable end portion of the axle journal receives a plug 41 which is axially adjustable. <IMAGE>
Patent GB-2271527-A (GB)
Title: Workbench with adjustable sawing angle
Inventor: CHEN CHUAN-WU
IPC: B27G5/02
Filed: 1992-10-17
Abstract: The workbench (10, Fig. 1, not shown) comprises a bench top (12, Fig. 1, not shown) having thereon a stop portion (22), a suspension arm (14) disposed pivotally under the bench top, and a pair of sawing supports (16, Fig. 1, not shown) fastened respectively to the two ends of the suspension arm (14). Each of the two ends of the suspension arm (14) are provided with a receiving mount (32) having a recess (33) provided at the inner edge thereof with a plurality of receiving surfaces (34, 35, 36) adjacent to one another. Each of the sawing supports (16, Fig. 1, not shown) has a retaining mount (50) which is provided thereon with a plurality of support rods (54) and with a plurality of restraining surfaces (51, 52, 53) adjacent to one another and at the outer edge thereof. The receiving surfaces (34, 35, 36 and the restraining surfaces (51, 52, 53) are similar in length and angular distribution so as to permit each retaining mount (50) to be received securely in the corresponding recess (33). <IMAGE>
Patent GB-2272973-A (GB)
Title: Method and apparatus for controlling a vehicle engine
Inventor: KESKULA DONALD HENRY
IPC: F02D41/34
Filed: 1992-11-14
Abstract: A camshaft wheel (10) adapted to be filled to an engine camshaft (12) includes a plurality of indentations (14, 16, 18, 20) providing a plurality of first, equally spaced, edges (22, 23, 25, 24) and a synchronising edge (28). Each of the first edges is adapted in use to indicate that an associated piston is approaching top dead centre. The camshaft wheel (10) can be used as a backup facility for a crankshaft wheel when the crankshaft wheel or any of the components associated with it are faulty or otherwise unreliable. The camshaft wheel (10) is otherwise used in conjunction with the crankshaft wheel (52) to determine engine phase as soon as crankshaft signal synchronisation occurs. <IMAGE>
Patent GB-2261722-A (GB)
Title: Air conditioning a display cabinet
Inventor: PARSLOW KENNETH JOHN
IPC: A47F3/04
Filed: 1992-11-19
Abstract: A display unit for fresh produce such as cut flowers prolongs their shelf life by directing over or around them a curtain of conditioned air. The air is collected at an aperture (20) downstream of the produce and recycled to the conditioning means. The discharge outlet may be a mesh grating (16). Collected condensate may be pumped via pipework to the flower pots for watering purposes. The unit may include a roller blind (28). <IMAGE>
Patent GB-2265687-A (GB)
Title: A torsion damper, for example a clutch friction wheel for a motor vehicle
Inventor: PAYEN JEAN-LOUIS
IPC: F16F15/123
Filed: 1993-03-18
Abstract: A torsion damper comprises friction means 17 to 19 and a support disc such as a clutch plate 2 which is fixed to at least one guide ring 8. The support disc 2 is extended radially inwardly to define a transversely extending central portion 25, which is offset axially by inclined portions 27 from a root zone (26, fig 7) in the general plane of the support disc 2, so that the latter thus has a dished shape. The central portion 25 is thus enabled to engage frictionally via friction means 17 to 19 against a damper plate 9. The friction means 17 to 19 comprises a resilient thrust ring 15 fixed to the guide ring 8 by axial fingers 16 and pushed into axial engagement by resilient ring portion 18 and 19. Resilient means 6, eg a spring, is provided in windows (30, fig 7) in the central and inclined portions. The spring also acts on the guide ring 8 and the damper plate 9 which move relative to each other within the limits of a predetermined angular displacement. A bearing 20 may be placed between a hub 3 and the guide ring 8. <IMAGE>
Patent GB-2266394-A (GB)
Title: Method of forming an image with a dot matrix printer and ribbons therefor
Inventor: RIDGWAY MICHAEL
IPC: G06K15/10
Filed: 1993-04-19
Abstract: In a method of forming an image of varying density using a dot matrix needle printer having a coloured ribbon, a print head comprising a number of needles, means for controlling the movement of the needles so as to strike the ribbon thus imaging the substrate, the density of each dot produced is varied by striking the ribbon corresponding to the same image dot a different number of times with a needle of the print head.
Patent GB-2267019-A (GB)
Title: Cultivation apparatus.
Inventor: EAGLESTONE DAVID JOHN
IPC: A01B49/02
Filed: 1993-04-30
Abstract: A cultivation apparatus comprising a frame (11) adapted to be towed, a plurality of dished, rotatable, soil engaging discs (14) carried by the frame in a linear array disposed at an angle of between 50 DEG and 75 DEG  to the direction of travel of the apparatus in use, and a press-roll assembly (15, 16) carried by the frame (11) behind said discs (14). <IMAGE>
Patent GB-2280471-A (GB)
Title: Clothes line clip
Inventor: ROWE JONATHAN
IPC: D06F55/00
Filed: 1993-07-28
Abstract: A line clip for hanging clothes etc. on a line which is adapted to be slidably and detach ably clamped to the line which includes an upper portion 2 having releasable clamp parts 7, 8 for securing the clip slidably onto a line 17. The upper portion of the clip is further adapted by having an aperture 10 to enable it to be engaged by a rigid rod like member positioned above the line and secured to at least one of the upright supports for the line to enable a plurality of line clips to be supportively located serially and contiguously on the rod member. The releasable line clamp is hinged at 13 and held closed by a snap fastening 11, 12. Cross over parts of the resilient limbs 6 of the clothes engaging jaws 4, 5 have interengaging serrated surfaces 18 to prevent the jaws from easily disengaging. <IMAGE>
Patent GB-2280982-A (GB)
Title: Piano action
Inventor: JARRETT MICHAEL
IPC: G10C3/22
Filed: 1993-08-13
Abstract: A separately mounted check lever 3 with back check and wire 2 and adjustable pilot and threaded wire which is independently fixed from the key 8 and when used with the removable centre balance pin 5 enables the key 8 to be removed from the action 11. The check lever 3 is fitted to the action rail 6 and provides means of regulating the position of the hammer 9 after the key 8 has been 'played' whilst the action is in the piano. The removable centre balance pin 5 enables the level of the key 8 to be adjusted without the need to remove the action from the piano. The removable centre balance pin 5 enables the key 8 to be removed from the piano for necessary maintenance, without the need to remove the action from the piano. Figure 4 shows the check lever arrangement, Fig 5 shows the removable centre balance pin, and Fig 6 shows the plastic insert. <IMAGE>
Patent GB-2283944-A (GB)
Title: Stencil transcribing device.
Inventor: TURNER RUSSELL DAVID
IPC: B43L13/10
Filed: 1993-11-20
Abstract: A stencil copying device (e.g. a lettering kit) comprises an engraved stencil 11, a rectilinear guide 13, and a scribing tool composed of a cruciform arrangement of two mutually slidably and pivotally adjustable arms 1, 2. One arm 1 bears an inscribing instrument at one end, and a pin 5 for following the rectilinear guide 13 at the other end. The other arm 2 bears a stylus for engaging the engravements of the stencil at one end, and a leg for supporting the tool on the paper at the other end. Adjustment of the point of intersection of the arms results in variation in the size, obliquity and proportion of characters transcribed from the stencil. In use the guide 13 is provided with an off-centre groove 16 and guiding marginal edges. The guide 13 may be placed with the groove either adjacent or opposite the marginal edge nearest the stencil 11, and the follower pin 5 may either run in the groove 16 or run against a marginal edge of the guide 13, or be spaced therefrom by a disc 12 (selected from a plurality of different size discs). These alternatives increase the degree of variability over that conferred by adjustment of the point of intersection of the arms alone. <IMAGE>
Patent GB-2285507-A (GB)
Title: Apparatus for establishing a horizontal level or a desired slope
Inventor: LUTON MICHAEL EDWARD
IPC: G01C9/28
Filed: 1994-01-07
Abstract: To establish a level or a desired slope one end of a line 4 carrying a level indicator 5 is fixed at a reference point, the other end of the line is positioned at a point remote from the reference point and the line at the remote point is moved either upwardly or downwardly in response to the indication given by the level indicator to establish the level or the desired slope of the line. The line may be stored on a spring spool 3 and may be in the form of a tape. The level indicator may be a spirit level or a pendulum level. <IMAGE>