baber/WOPTO huggingface dataset:
Patent GB-2064173-A (GB)
Title: A Method and Apparatus for Controlling the State of a Device
IPC: G05B11/42
Filed: 1980-11-11
Abstract: A control circuit comprises a comparator 1, receiving a reference signal Ve and a state signal Ve from a controlled device 3, and deriving an error signal E which is processed in a circuit 2 to provide a command signal Vs. The circuit 3 includes an integrator (5) having a capacitor (5b). A discharge circuit for discharging the capacitor (5b) when a predetermined condition exists comprises a discharge signal generator (-V; 15, 17; or 22) connected to the summation point (5a) in the integrator through at least one switch (8; 16, 18; or 23). The closure of the switches (8; 16, 18 and 23) is controlled by a command circuit (9-14; 15, 20) for receiving the error signal. <IMAGE>
Patent GB-2065218-A (GB)
Title: Buckle for fastening a bundling strap
IPC: F16L3/233
Filed: 1980-12-11
Abstract: A buckle, for fastening a bundling strap having stop projections (12), comprises a main body having an insertion hole extending therethrough for permitting the ends of the bundling strap to be inserted therein. Tongue-shaped engaging pieces (6) are possessed of thin-wall connecting edges (5) and are formed in opposed walls of the main body, free ends of the tongue-shaped engaging pieces being formed in an increased wall thickness and incorporating inner edge parts in the form of stop claws (8), as well as outer edge parts in the form of catch portions for engagement with catch portions (10) presented by the opposed walls of the main body. The bundling strap is fastened with the buckle by pressing the tongue- shaped engaging pieces (6) into the insertion hole, with the thin-wall connecting portions (5) serving as fulcrums, until the catch portions of the engaging pieces (6) and the catch portions (10) engage, allowing the stop claws (8) to be thrust into the insertion hole and brought into engagement with the stop projections (12) of the bundling strap. <IMAGE>
Patent GB-2063177-A (GB)
Title: Self-propelled carriage assembly for printers and the like
IPC: B41J19/20
Filed: 1980-05-16
Abstract: A reciprocating self-propelled carriage assembly (10) for a printer is slidable along a pair of carriage guide shafts (14, 15), one of which (15) is provided with an elongated rack (16). A small lightweight DC motor (M) of simplified design is mounted upon the carriage for selectively rotating a pinion gear (52b) which meshes with said rack. Registration means for the printer is mounted directly upon the carriage and comprises a Hall effect device (42) for generating pulses by sensing magnetic flux patterns developed by a rotating magnetic member (47) mechanically coupled to the output of said motor to a gear train. A print head mounting bracket (60) is slidably mounted upon said carriage through a dovetail arrangement (61a, 61b, 22b, 22c) and manually operable cam means (98) provided on said carriage positions the print head mounting bracket relative to said carriage for adjusting the position of the print head nose (119) relative to the printer platen (105). Connections to the print head, motor, and Hall effect sensor are obtained through a flat, flexible printed wiring cable (43). The direct drive motor eliminates the need for belts, pulleys, clutches, and conventional power coupling means.
Patent GB-2066672-A (GB)
Title: Disposable swab articles and other like packages
IPC: A45D34/04
Filed: 1980-07-22
Abstract: Disposable swab articles and other like packages comprising an applicator package having distal ends and having a foam applicator pad (14) and a receptacle (12) adjacent thereto. The contents (22) of the receptacle (12) must remain out of contact with the applicator pad (14) until use. The invention is directed to solving the problem of easily opening the receptacle (12) at use. The receptacle (12) has at least one reservoir pad formed of a relatively rigid, flat sheet material (16) and a formed cover (28) for containing the contents of the reservoir therebetween. The flat sheet material (16) has a slit or weakened portion (18) in the surface of the material (16) and the slit or weakened portion (18) is transversely disposed of the flat sheet material(16), so that the slit or weakened portion (18) is ruptured upon forcing the distal ends toward each other about the slit or weakened portion (18). The contents (22) of the reservoir are thereby released into the foam applicator pad (14) upon pressure deforming the formed cover (28).
Patent GB-2074579-A (GB)
Title: Method of producing hardener/catalyst compositions for casting resins
IPC: C08G59/42
Filed: 1981-04-23
Abstract: The invention relates to a method for the manufacture of transparent casting resins. According to the invention, a liquid acid anhydride (b) is admixed to a premixture (a), which is liquid at room temperture, of zinc octoate, a low-molecular weight acid ester and, optionally, an organic phosphite, and this mixture of (a) and (b) is added, preferably at temperatures </=50 DEG  C., to liquid aromatic diglycidyl ethers. Diphenyldecyl phosphite is particularly well suited as an organic phosphite. The casting resins obtained are transparent and find use particularly for casting-in and encapsulating opto-electronic components such as light-emitting diodes (and diode displays), photo diodes and photo transistors.
Patent GB-2099396-A (GB)
Title: Automatic bale wagons
IPC: A01D90/08
Filed: 1981-05-29
Abstract: An automatic bale wagon comprising a frame, a plurality of load floors (17,18,19,21) disposed one above another and mounted on the frame, bale pick-up means (23) operable to pick up bales (30) from the ground for delivery to the lowermost load floor (17), conveyor means (27,28) operable to convey bales (30) successively on each load floor in a predetermined manner, with the bale movement associated with one load floor being opposite to that associated with the adjacent load floor or floors, and bale support means (24) operable to support one or more bales (30) being transferred by the conveyor means (27,28) from one load floor to the next floor above, the bale support means (24) comprising retractable stop means operable in an operative position to retain the or each bale (30) on the support means (24) and in the retracted, inoperative position to permit the or each bale (30) to disengage the support means (24). <IMAGE>
Patent GB-2080907-A (GB)
Title: Threaded members
IPC: F16B12/20
Filed: 1981-07-24
Abstract: A threaded member has an external helical thread 18a presenting a crest 24 of spiral outline whose trailing end is in the form of an abutment 26 for resisting withdrawal from a resiliently deformable workpiece. In a preferred application, the threaded member is a die-cast grub screw S and locates within a hinged plastics furniture fastener F. Advancing the grub screw S by 1 DIVIDED 2-turn from its initial position in the fastener F breaks a frangible locating web 28 and allows the abutment 26 to pass an abrupt shoulder 64. This gives a tangible warning to the user that a ridge 12b on the grub screw S is correctly located beneath a head H of an anchor A. <IMAGE>
Patent GB-2084721-A (GB)
Title: Automatic measurement of area of dimension
IPC: G01B11/02
Filed: 1981-08-24
Abstract: The invention provides an apparatus for determining the size of a test piece (10) or of marks thereon comprising means to support the test piece in a predetermined position, means (S) to direct a medium light or ultrasonic radiation onto the test piece (10), means (11) responsive to said medium to provide a signal (30) which varies in accordance with variations in intensity of said medium reflected from or transmitted from or past the test piece (10), electrical processing means (12) to process the signal (30) to provide an output (O) dependent upon the size of the test piece (I) which can be interpreted to determine the size of the test piece. As described for measuring the size of indentations made by a hardness tester, video camera 11 views the indentations through microscope M and either the maximum dimension of the indentation or the area thereof is obtained by counting clock pulses during the video scan of the section of the image corresponding to the indentation. <IMAGE>
Patent GB-2083168-A (GB)
Title: Flexible shaft couplings
IPC: F16D3/76
Filed: 1981-08-26
Abstract: A shaft coupling has a hub part 1 of one half of the coupling and an outer ring 2 concentrically surrounding the hub part 1 and associated with the other half of the coupling. These hub parts are connected by two identical reinforced elastic annular discs 3, 4 which are arranged in laterally inverted relationship and which are curved axially outwards to form a cavity between their edges clamped to the hub part 1 and the outer ring 2. The outwardly curved parts 18, 19 are respectively braced relative to one another by means of annular elastic elements 20, 21 whose inner end faces carry friction rings 30, 31. A support ring 22 is connected to the hub part 1 so as to rotate therewith and carries brake rings 25, 26. The mutual contact surfaces of the annular elements 20,21 and of the brake rings 25, 26 are in the form of friction surfaces. <IMAGE>
Patent GB-2106008-A (GB)
Title: Method and apparatus for removing a thin coating layer of fibre
Inventor: DALGOUTTE DAVID GEORGE
IPC: G02B6/245
Filed: 1981-09-17
Abstract: A method and apparatus for removing a thin coating layer from a fibre, in particular dielectric optical fibre comprising applying intense ultra-violet radiation to the coating layer to destroy it.
Patent GB-2089422-A (GB)
Title: Door-locking mechanisms for security enclosures
IPC: E05B35/10
Filed: 1981-11-23
Abstract: The locking mechanism for a vault door has a plurality of locks 2, 3, 4, 5, each one coupled through its bolt 13, 14, 15, 16 to a respective pivoted locking arm 17, 18, 19, 20. In the locking condition (shown) the arms 17, 18, 19, 20 are pivoted to block withdrawal of bars 9, 10, 11, 12 connected to the fastening bolts of the door. Each lock bolt 13-16 is connected to its arm 17-20 by a control member 32 having an eccentric peg (28) which engages in a slot (29) in the respective arm (Figs 6 and 7, not shown). To disable a lock, its bolt is projected and the control lever 32 turned. This moves the eccentric peg and so pivots the locking arm 17-20, as appropriate, into its unblocking position. At the same time a cam prevents retraction of the lock bolt. <IMAGE>
Patent GB-2101360-A (GB)
Title: Light scanning apparatus
Inventor: SANSONE RONALD PHILIP
IPC: G02B27/00
Filed: 1979-07-05
Abstract: A light scanning apparatus uses a modulated laser source (10) directed upon a multifaceted reflective polygon (28) so that in use the beam is reflected from successive facets (26) of the rotating polygon and sweeps along a scan path to provide successive raster lines extending across a photoreceptor (32). The speed of rotation of the polygon is controlled by means including a sweep velocity detector which comprises a pair of electro-optical sensing means (58, 62) positioned along the scan path at a fixed reference ahead of the scan format and along the scan path rearwardly of the photoreceptor. Each means comprises at least one photo-detector and provides a signal indicative of the beam falling on the photodetector. The signals of each of the sensing means are used to give a control signal for changing the speed of rotation of the polygon. <IMAGE>
Patent GB-2091389-A (GB)
Title: Improvements in or relating to soft seating valves
IPC: F16K43/00
Filed: 1982-01-13
Abstract: A diaphragm valve has a compressor 14 which is asymmetric to an operating spindle 15 for moving the diaphragm between open and closed positions. The asymmetric compressor is movable carried by the operating spindle so that if, for any reason, the diaphragm is destroyed, the asymmetric compressor makes emergency sealing with the valve body, preferably downstream of the valve body in the direction of fluid flow through the valve. An emergency "indestructible" sealing member 20 is preferably mounted in the downstream part of the compressor which is movably mounted on the spindle by spring discs 18. <IMAGE>
Patent GB-2119299-A (GB)
Title: Making cutting tools
Inventor: ARCHER JOHN RICHARD
IPC: B21D7/12
Filed: 1982-03-04
Abstract: Method and apparatus for constructing a pressknife for cutting out sheet material such as a leather, wherein machine instructions are generated containing data relating to a desired configuration of the press knife for cutting out a particular profile, the machine instructions are supplied to a bending device (36, 38, 40) and to a strip material feed device (62), the feed device supplies the strip material to the bending device so the bends are introduced into the strip material in accordance with the machine instructions, the formed strip material then being cut off from the stock and assembled and fixed to form the desired knife configuration, preferably being fixed around a support plate which is produced by a forming device (30) fed with machine instructions derived from the same source (12) as those controlling the bending and feeding devices.
Patent GB-2097810-A (GB)
Title: Apparatus for use in sunbathing
IPC: A45B25/18
Filed: 1982-03-24
Abstract: Apparatus (10) for use in sunbathing comprises a screen formed of a sheet (13) of plastics material, preferably thermoplastic, which is transparent to ultra-violet radiation but which contains a first agent which absorbs UV-B radiation in the 290-320nm range and a second agent which prevents transmission of some radiations above 450nm wavelength, i.e. light and infra-red. The second agent may be light reflective or absorbing such as a dye or pigment. The screen may be mounted on a frame (11, 12) as in an umbrella or parasol so as to shield the sunbather from harmful UV-B radiation, prevent excessive heating and provide subdued lighting. The screen may alternatively be formed into such articles as canopies, roofing for outdoor enclosures, and hats. Suitable thermoplastic materials include vinyl chloride polymers, polyolefins and acrylic polymers. <IMAGE>
Patent GB-2102842-A (GB)
Title: A heated trough calender
Inventor: KRUMBIEGEL HERBERT
IPC: D06F67/02
Filed: 1982-04-15
Abstract: A heated trough calender for drying and smoothing damp pieces of linen, is provided with contact surfaces which are heated by means of a flowable heat carrier medium. A pre-drying unit is provided as a rotatably mounted, drivable cylinder 9, to the outer surface of which there is fixed a pipeline system 16 which is connected a transfer device 9 connected to a line for collecting condensate from the troughs at the inlet end 11 and to an abduction system for removing condensate from the cylinder 9 at the outlet end. In Fig. 2, the system 16 comprises two helical parallel pipelines 17, 18 the inlets 19, 20 and outlets 21, 22 are positioned at opposite ends of the cylinder 9. In Fig. 3 (not shown), the system (16) is divided into sections (26) in which helical pipelines (27) are provided. <IMAGE>
Patent GB-2122809-A (GB)
Title: Integrated circuit interconnection bus structure
Inventor: ROGERS DENNIS JOHN
IPC: H01L23/528
Filed: 1982-06-01
Abstract: An interconnected bus structure, for use in corridors (3) between rows of logic elements (2) having exposed metallic contacts (6, 7) of an integrated circuit uncommitted logic array, includes a plurality of, bus metallic tracks arranged on an insulating layer overlying the integrated circuit substrate in groups of four in bus sub-corridors (9) and following bus track grid lines (8). Under the insulating layer and extending at right angles to the track grid lines (8) are conductive tracks (14) of various lengths. The ends of the tracks (14) are accessible from the surface of the insulating layer by metallic contacts (15) extending in apertures through the insulating layer. In order to gain access to the innermost pair of each group of four bus track grid lines the spacing between these two bus track grid lines increases at intervals to allow the underlying conductive tracks (14) io be contacted by means of metal contacts (16) arranged within the groups and extending through respective apertures in the insulating layer. <IMAGE>
Patent GB-2111757-A (GB)
Title: Radio direction finding system
Inventor: CLAYTON JOHN BARRINGTON
IPC: G01S3/32
Filed: 1982-10-29
Abstract: The present invention provides a radio direction finding system for a circular antenna array, and includes a plurality of a (e.g. 24) input lines each for receiving signals from a respective antenna of the array, a matrix of digitally controlled switches for switching signals on the input lines to b (e.g. 8) matrix output lines. control means connected to the matrix for selectively connecting a set of b of the input lines connected to adjacent antenna to the output lines, and for varying the selected set of input lines so as to advance the selected group of 8 around the circular array, a beam forming circuit connected to receive signals from the b matrix output lines at 14a...14h, and including a tree of dual input hybrid transformers 19a, 19b, 19c, 19d, 20, 21, and 28, arranged to additively combine the signals so as to produce a sum signal containing information from all the signals on the matrix output lines. wherein the tree includes sets of delay lines, e.g. 16, 17, 18, each set for consecutively introducing different phase delays in an associated signal path of the tree whereby beam slewing is introduced in at least two levels in the combining tree. <IMAGE>
Patent GB-2110287-A (GB)
Title: Shuttering ties
Inventor: MACARTNEY PAUL
IPC: E04G17/07
Filed: 1982-11-26
Abstract: A shuttering tie (10) for use in the building construction industry to maintain shuttering panels in correct spaced relation is made from resilient steel strip which enables the strip to be provided in roll or coil form (30) and the ties to be cut to the desired length. Such a roll or coil of the material aleviates the necessity of stocking many different lengths of shuttering tie thus facilitating stock control and ensuring that a supply of ties (10) of any desired length is constantly available.
Patent GB-2119505-A (GB)
Title: Method and device identifying the registering marks in order to position a reading aperture
Inventor: METRAUX JACQUES
IPC: B41F13/02
Filed: 1983-01-06
Abstract: A device for identifying registration marks includes two reading heads 30 and 31 connected by an amplifier 32 to an analyzing device 33 which processes the information read on the web 2 running over an engraved cylinder 38. An angular encoder 37 of the cylinder calculates the angular position of the engraved cylinder 38 while it rotates, and transmits it to the analyzing device 33, which memorises the received information from cycle to cycle of the cylinder 38. Said device 33 also sends out a signal 36 in order to control the idler roller 41 creating a positive or negative elongation of the web 2 between two points 47, 48 on it. The change in length, thus achieved, allows the identification of the registering marks, by comparing the different registering mark reading results before and after the change in length. <IMAGE>
Patent GB-2114258-A (GB)
Title: Method of reducing flow of escaping liquid
Inventor: ELLS JOHN WILLIAM
IPC: F16L55/164
Filed: 1983-01-31
Abstract: The flow of liquid escaping from a leak in a vessel, eg, a pipeline, is reduced or eliminated by introducing particles into the liquid. The particles are dispersed in a slug of material of higher viscosity than the liquid in the vessel and the size of at least some of the particles is greater than that of the hole. The position of introduction of the slug is such that the slug containing the particles is carried by the liquid to the hole. The particles are non-deformable so that they lodge in the hole without extruding through at elevated pressure and thereby seal the hole.
Patent GB-2119837-A (GB)
Title: Apparatus for the performance of maintenance work and/or repairs on an artificial work island
Inventor: ANTHOFER HORST
IPC: E02B17/00
Filed: 1983-04-14
Abstract: In artificial work island 1 difficulties are encountered in performing the necessary maintenance work or repairs, particularly on the lower side of the platform nearest to the water level. The unstable scaffolding structures hitherto proposed for this purpose have all proved unsatisfactory, being time-consuming and expensive makeshift solutions which in addition present a danger to the personnel entering such structures. The invention proposes a system in which at least to the lower side of the platform nearest to the water level a rail track 14 is secured in a looped configuration, a working stage 15 being automatically guided along the said track. By the aid of this working stage, which is preferably adjustable in length and pivotable, every zone of the lower side of the platform can now be approached and the required maintenance work and/or repair carried out. <IMAGE>
Patent GB-2139494-A (GB)
Title: Display apparatus
Inventor: ROOTHAM ERIC WENTWORTH PETER
IPC: B42D5/04
Filed: 1983-04-23
Abstract: Display apparatus, comprising sets of respective two sheets (32, 33), wherein in any said set a respective first sheet (32) extends outwardly beyond the edge of a respective second sheet (33), at least one of said first and second sheets having at least one edge portion (34) bendable away from the other of those first and second sheets such that between those first and second sheets at least one inlet mouth (36) can receive at least a portion of at least one item (7), such as a greetings card, note or photograph, to constitute a first display, and at least one window means (33') opening onto a region containing a second display. The windows may have flaps, as in an 'advent calendar', or may cooperate with a rotary dial as in a perpetual calendar, Figs. 4 and 5. <IMAGE>
Patent GB-2120868-A (GB)
Title: Drive circuit for a three-phase inverter
Inventor: JENSEN ARNE
IPC: H02M7/529
Filed: 1983-05-25
Abstract: A drive circuit for a three-phase inverter, in which each square halfwave of the output voltage is, for the purpose of harmonic wave damping, interrupted by two gaps which are symmetrically disposed in the first and last 30 DEG  section and bounded by the angular spacings  alpha 1 and  alpha 2 from the ends of the halfwave, particularly for operating a speed regulated A.C. motor. The drive circuit is characterised in that  alpha 1 is less than 13.85 DEG (the first zero crossing of the 13th harmonic), the angular spacing  alpha 2 lies between 12.86 DEG  (the first maximum of the 7th harmonic) and 18 DEG  (the first maximum of the 5th harmonic), and the gap width ( alpha 2- alpha 1) lies between 3 DEG  and 7 DEG inclusive. Particularly effective combinations, for reducing oscillating torque due to 5th, 7th, 11th and 13th harmonics, are  alpha 2 = 15 DEG  with  alpha 1 = 9 DEG  or 10 DEG . <IMAGE>
Patent GB-2127013-A (GB)
Title: Tetrafluoroterephthalyl alcohol, esters thereof and a process for their preparation
Inventor: CLEARE PETER JOHN VERNON
IPC: C07C33/46
Filed: 1983-07-06
Abstract: Tetrafluoroterephthalyl alcohol and its esters, useful in the synthesis of pesticidal compounds, are prepared by reducing a tetrafluoroterephthaloyl halide, especially the chloride, with suitably, sodium borohydride in diglyme, followed, as appropriate, by esterification. The alcohol and its esters can be further reduced by catalytic hydrogenation under mild conditions to yield tetrafluoro-p- xylene or the intermediate 4-methyl- 2,3,5,6-tetrafluorobenzyl alcohol.