baber/WOPTO huggingface dataset:
Patent GB-650981-A (GB)
Abstract: 650,981. Compound sheet materials. KERR & CO., Inc., A. H. April 8, 1948, No. 9908. Convention date, Feb. 5. [Class 140] A machine of the type described in Specification 653,792 for producing laminated panels comprises a base 1 supporting platens 2, 3, the upper of which is hydraulically controlled for vertical movement and has beams 10, 11 forming a track on which a dispensing device, comprising an impregnating tank 55, a spout 56, and a handoperated closure- and severing-plate 58, is reciprocated through the space between the platens to deposit layers 60, 61, 62 of synthetic resin-impregnated material on the platen 2 and successively-positioned series of mandrels 22, 23, Fig. 8, forming manifolds 21, 20. Each manifold is conveyed by one or more carriages 26 mounted for reciprocatory movement on posts 25 and held on sub-carriages 30: As each manifold is advanced in a tilted position, as shown in Fig. 2, the engagement of an arm 88 with a stop 92 moves the mandrels into horizontal position; the tilted position is resumed when, on the retraction of the manifold the arm 88 strikes a bracket 91. The layers are cured and consolidated under the pressure applied by the platen 3 and heat from platens and manifolds which are steam-heated internally. The mandrels are simultaneously withdrawn from the completed panel, initially by operation of motor-driven worm gears 71 (Fig. 4, not shown), which exert a powerful pull at slow speed on the shanks 32, and then by rapid retraction of the carriages 26; the mandrels may be slightly tapered to facilitate this withdrawal.
Patent GB-744919-A (GB)
Abstract: 744,919. Semi-conductor devices. GENERAL ELECTRIC CO. May 11, 1953 [May 9, 1952], No. 13088/53. Class 37. In a Hall effect amplifier, one of the main input electrodes or an auxiliary electrode constitutes an emitter electrode which injects minority carriers into the Hall plate. The emitter electrode may consist of a point contact or a PN junction. In Fig. 1, the point or impurity contact 15 is applied to a germanium plate 14, and co-operates with the other input electrode 17, which is of the low resistance type. An adjustable bias source 20 is connected between these electrodes, poled so that electrode 15 omits minority carriers into the germanium. A magnetic field is provided by permanent or electromagnet 11 and the output is taken from ohmic electrodes 12 and 18, and may be amplified in thermionic valve 24.for application to load 25. Input signals may be applied to electrode 15 via terminals 23, and/or input signals may be applied to coil 13 to control the output by variation of the magnetic field. When the electrode 15 is composed of donor (e.g. antimony, phosphorus or arsenic) or acceptor (e.g. indium, gallium, or aluminium) material, this may be applied by soldering, fusing, diffusing or depositing evaporated material on to the germanium, and may also be diffused into the germanium as described in Specification 728,129 to provide a PN junction. It is stated that electrode 15 need not possess efficient rectifying properties. In an alternative arrangement, the germanium plate is shaped as a filament with wide ends (Fig. 8) and the two main input electrodes 51 and 16, are both of low-resistance type. The point or impurity contact 15, which emits the minority carriers, is placed on the surface of the germanium between main input electrode 51 and the output electrodes 17 and 18. The output voltage is then dependent on the input current between electrodes 51 and 16, and also on the current of minority carriers supplied by electrode 15 which may vary in accordance with a second input signal. If the magnetic field is also varied, the output is then dependent on three input signals. In operation, the normal Hall voltage, which occurs due to the current flow of majority carriers, falls off as the current of minority carriers from electrode 15 is increased, and finally will tend to decrease with increments of minority carrier current. This provides a non-linear characteristic which may be used for control purposes. The surface of the germanium may be etched before the point contact 15 is applied, or after the PN junction has been formed.
Patent GB-2030489-A (GB)
Title: Vibratory finishing
IPC: B24B31/073
Filed: 1978-10-02
Abstract: A vibration barrel grinding device particularly for light articles wherein the outer peripheral wall of a vibration barrel having a circular or polygonal grinding tub or a doughnut-shaped tub is formed of a pressured flow wall 1d and a pressured riser wall 1b, a cylindrical core 6 is provided as fixed or rotatably along the inner peripheral wall of the barrel and at least one blade 7 is provided inclined downward on the peripheral surface of the cylindrical core so that the flow of a mass may be forcibly moved downward to improve the grinding efficiency. <IMAGE>
Patent GB-2006883-A (GB)
Title: Fan or Compressor Rotor Stage
IPC: F01D5/30
Filed: 1978-10-23
Abstract: The stage comprises a rotor disc (12) from the periphery of which a row of angularly spaced apart rotor blades (13) is carried. To define the inner boundary of the flow passage through the stage, spacers (16) are provided between adjacent blades (13). Each spacer (16) has a rearward extremity (18) engaging the inward facing groove (19) of a thrust ring (20), and a forward extremity (23) engaging the forward face (24) of the disc to prevent rearward motion of the spacer. A recess 25 in the latter is engaged by retaining ring 27. <IMAGE>
Patent GB-2008968-A (GB)
Title: Ion exchange processes
IPC: B01J47/02
Filed: 1978-11-30
Abstract: Water is purified by passage through a bed comprising anion exchange resin and then, so as to give warning of approaching exhaustion of the bed and the resultant breakthrough of silica, is passed at a high flow rate through a rinsed bed of cation exchange resin and its conductivity is then measured. When it is observed that the conductivity starts to rise the anion exchange resin is regenerated.
Patent GB-2045370-A (GB)
Title: Centrifugal brake
IPC: F16D59/00
Filed: 1978-12-01
Abstract: The brake acts on a rotary shaft 1 to which is keyed a spool 5; two or more friction lined shoes 4 are pivoted in spool 5 and act on a stationary drum 2 under centrifugal force. This force is opposed by torsional load of a spring 8 which is varied according to the angular position of a bush 9 which is free to rotate on shaft 1. <IMAGE>
Patent GB-2009015-A (GB)
Title: Stripping Apparatus
IPC: H01R43/28
Filed: 1978-12-07
Abstract: Apparatus for cutting wire into predetermined but variable lengths, and for stripping the insulation sheath from the core of the wire so as to bare the same, has a mechanical drive via a main lever 12 with an adjustable fulcrum 20 for reciprocating elements of the apparatus. The throw of the lever at end 23 driving feed rolls D via a rack 42 is thus adjustable to vary the cut length. The lever end 14, of fixed throw, drives stripping clamps C-, their stroke being variable only by a choice of connection points for transmission linkage. <IMAGE>
Patent GB-2012257-A (GB)
Title: Activated carbon and its use in gastrointestinal disorders
IPC: B01J20/20
Filed: 1978-12-22
Abstract: Powdery activated carbon is known for use in the treatment of gastrointestinal disorders but suffers from the disadvantage of causing constipation. To overcome this undesirable side-effect, essentially spherical particles of activated carbon are provided having a diameter of from 0.05 to 2 mm, a surface area of from 500 to 2,000 m<2>/g and a pore cavity volume, as determined for cavities in the radius range from 100 to 75,000 ANGSTROM , of from 0.05 to 1.0 cc/g, at least 85% by number of said particles having smooth surfaces and the ratio of the maximum diameter to the minimum diameter of different ones of said smooth-surfaced particles being from 1.0 to 1.3:1.
Patent GB-2014455-A (GB)
Title: Hysteroscope
IPC: A61B1/12
Filed: 1979-01-03
Abstract: The present invention relates to a hysteroscope of the type comprising an outer envelope A forming a cannula, means 10, 11 for insufflation of a fluid, particularly a gaseous fluid, such as for example carbon dioxide, inside the uterine cavity to distend the walls thereof, and an inner envelope B forming an endoscope tube, of smaller diameter than the outer envelope and adapted to slide therein, this inner envelope containing light transmission means for conducting light to the distal end of said inner envelope and comprising an abutment 1a for providing a seal between the hysteroscope and the cervix of the uterus, and a portable device for supplying said fluid, fast with said hysteroscope. <IMAGE>
Patent GB-2015937-A (GB)
Title: Radial tyre breaker assemblies
IPC: B60C9/28
Filed: 1979-02-15
Abstract: A pneumatic tire having a radial carcass which is adapted for use on heavy duty motor vehicles such as trucks and buses is provided with an annular reinforcing structure in the crown of the tire between the carcass and the tread band having at least three layers of metal cords with the two layers which are radially inner of the third layer being of cords having an ultimate elongation of about 3% and the cords of the third layer having an ultimate elongation of about 4% to about 8%. The cords of each of the two radially inner layers are substantially parallel to each other and inclined with respect to the direction of travel of the tire but the cords of one of the two layers cross those of the other layer. The cords of the third layer are substantially parallel to each other and to the direction of travel of the tire. The third layer has a central strip astride the center line of the tire and a lateral strip on each side of the center strip which is more resistant to tension and compression stresses than the center strip.
Patent GB-2015929-A (GB)
Title: Printing Machines
IPC: B41F13/10
Filed: 1979-03-05
Abstract: A printing unit for a rotary printing machine, having two plate cylinders of mutually equal diameter arranged for printing a web (or sheets) passing therebetween, at least one of the cylinders having a resilient covering between its thin wrap around plate and the cylinder body whereby it acts as an impression cylinder for the other plate cylinder. Both cylinders may have resilient coverings and thin wrap round plates. Such a printing unit prints on each successive rotation of the cylinders and prints the web (or sheets) on both sides simultaneously.
Patent GB-2020092-A (GB)
Title: High potential, low magnification electron gun
IPC: H01J29/62
Filed: 1979-04-10
Abstract: An electron gun, especially for use in color picture tubes, comprises in the order named: a cathode, an apertured- plate control grid (G1), an apertured- plate screen grid (G2), and at least two tubular focusing electrodes (G3 and G4). The quality of the gun's beam spot may be improved by (1) Establishing an operating electric field between the G2 and G3 which is between about 100 and 400 volts/mil (3937-15748 volts/mm), thereby reducing aberration effects in the beam-forming region of the gun; (2) Making G2 thick so as to prevent the high G3 voltage from penetrating the region between the G1 and G2, thereby allowing the G1-G2 field to provide a divergent effect on the electron beam prior to beam crossover and thus give a reduced crossover angle; (3) Elongating G3 to provide an optimum filling of the main focus lens with the beam to maximize the object distance of the focusing system; and (4) Structuring G2 and G3 to provide a flat electrostatic field therebetween to avoid prefocusing action in that region, so as not to cause an effective reduction of the object distance of the focusing system. The electron optics, and aberrational effects countered, are detailed. Dimensions and electric potentials are given, and alternative G2 constructions described (Figures 10,11 not shown). Magnetic members 46 correct coma. Guns may be in-line or delta array, and of uni-, bi-, or tripotential lens construction. <IMAGE>
Patent GB-2016972-A (GB)
Title: Method and apparatus for machining elongate articles
IPC: B24B19/00
Filed: 1979-04-18
Abstract: This invention relates to machining an elongated article, for example, grinding at least one flute in the stem 13 of a stemmed drinking glass 10 or other similar article. The article is held at at least one end in a vacuum chuck 14 and is centred between a centring device 24 and a first transducer 35 for measuring the thickness of the article. The length of the article over which it is to be machined and any changes in the thickness of the article over this length are then measured and memorised by effecting relative movement between the article and the first transducer and a second transducer for measuring the length longitudinally of the article. The first transducer is then withdrawn and a machining tool 51 is brought forward. Thereupon the article is machined, the or each machining step comprising feeding the machining tool a required depth into the article, and effecting relative movement between the article and the machining tool longitudinally of the article whilst continuously adjusting the position of the machining tool laterally of the article to allow for any changes in the thickness as memorised. The article may be rotated to produce a twisted flute. <IMAGE>
Patent GB-2019520-A (GB)
Title: Pipe Couplings
IPC: F16L37/00
Filed: 1979-05-23
Abstract: A pipe coupling comprises a plug and socket assembly, the assembly having an elongate plug member (12) in the form of a sleeve which co- operates with the socket member (10), wherein it engages in axial and circumferential sealing relationship by means of seals (34, 36). Resilient catch means (50) are associated with the socket member (10) for engaging complementary recess means (30) in the plug member (12). Locking means (60) act on said catch means (50) to lock the catch means positively in said recess means when said catch and recess are interengaged. Actuating means are provided in the form of hydraulic rams (68) for said locking means operable from a remote position. Guide means are provided in the form of a conical guide (20) for alignment of the plug and socket members. <IMAGE>
Patent GB-2025288-A (GB)
Title: Continuous Casting Strand Guide
IPC: B22D11/128
Filed: 1979-07-05
Abstract: The strand guide including rollers (1) for supporting and guiding a strand and whose stationary axles (2) or driven shafts are held on roller carriers (5, 8) by holding devices (3) arranged at the roller ends, comprises lugs (14) provided on the holding devices (3) and projecting outwards in axial direction, a shackle (16) for bracing the lugs (14) the holding devices of at least two adjacent rollers against the roller carriers (5, 8), and a pressure element (23) (e.g. a wedge) insertable in a recess between the roller carrier (5) and holding device (3) of each roller (1). The wedge is used after the shackle 16 has been removed to release the holding devices from the carriers. By rotating the holding devices (3) in the recesses of the carriers (5, 8) the spacing of adjacent rollers can be adjusted. <IMAGE>
Patent GB-2026916-A (GB)
Title: Apparatus for finishing welded tube joint
IPC: B21C37/08
Filed: 1979-07-27
Abstract: The apparatus is provided with an arm 13 for supporting a preformed tube (not shown) and with a roll which is adapted to be rolled over the welded joint under pressure to smooth and shape the joint. The roll is carried in a carriage 22 which is roller-mounted for movement along a beam 6. The carriage also carries a brush for cleaning the smoothed and shaped joint to produce a completed duct section having a joint which is evenly formed and presents no irregular surface configuration. <IMAGE>
Patent GB-2032507-A (GB)
Title: Acoustic Panel With Locating Means
IPC: E04B2/74
Filed: 1979-09-12
Abstract: An acoustic panel including jack means (A) adapted releasably to lock the panel (1a) in operative position between a floor (2) and an overhead support (7). Also an acoustic panel including a connecting element (12) located in spaced relationship to a vertical end (10) of the panel (1a) and receivable within an annular retaining element (14) adapted to receive two or more connecting elements (12) on adjacent vertical ends (10) of two or more acoustic panels (1a, 1b) located in end-to-end relationship. <IMAGE>
Patent GB-2070324-A (GB)
Title: Suppression of undesired modes in klystron cavities
IPC: H01J23/20
Filed: 1980-02-15
Abstract: An undesired higher order resanant mode in a klystron cavity 2 is reduced in amplitude, or shifted in phase outside the klystron passband, by suspending a conductive rod 13 within the cavity, preferably - in the case of the output cavity, as shown - diametrically opposite the output coupling loop 7. The rod 13 may be adjustably supported by a conductive or insulating rod 14 mounted in an air duct 10 for cooling the ceramic envelope 3 of the tube. A procedure for adjusting rod 13 to the optimum position is described with reference to Figure 3. <IMAGE>
Patent GB-2069392-A (GB)
Title: Projection welding method, e.g. for thermostat capsules
IPC: G01K5/34
Filed: 1980-02-19
Abstract: To produce a thermostat capsule of the liquid-filled type the metal diaphragm is projection welded to a shallow cup in a container of the liquid to be used as the filling. With hitherto- used methods there is the risk that excess liquid remains in the capsule, which could cause diaphragm failure. To overcome this, the weld preparation profile of the cup rim is so shaped as to collapse inwards when the weld occurs. This is done by having the preparation profile sloping inwards. In addition, a welding electrode acting on the diaphragm has a stud (7) which extends below the level of the electrode proper (6) to predeflect the diaphragm. <IMAGE>
Patent GB-2047912-A (GB)
Title: Glass Plate Light Stop and Method for its Production
IPC: G02B5/00
Filed: 1980-03-26
Abstract: A glass plate is made pervious to light in at least one direction and impervious to light in at least one other direction by thin parallel equidistantly spaced light-absorbing which extend substantially through the plate and whose function is comparable to a jalousie. According to one method, the lamina are formed by impressing into a glass plate a prismatic grating structure whose indentations are to be made light opaque and the lands therebetween which are to remain light permeable, are masked with thin adhesive strips. The entire plate surface is then covered with a light impermeable layer, the adhesive strips are removed, and the impressions are filled with a glass plumb to provide a smooth surface. According to another method a plate 53 of photosensitive glass is temporarily masked with spaced parallel strips 52 of radiation-shielding material and then the plate 53 is irradiated with UV light 51 and heat treated until the glass between the masked strips 52 becomes light opaque. <IMAGE>
Patent GB-2074813-A (GB)
Title: Loop detectors
IPC: H04Q1/38
Filed: 1980-04-19
Abstract: Electronic SVI/CNI DC loop signalling circuit uses opto-couplers OCT1- OCT4 to provide the polarised relay functions of the known Strowger circuit. The circuit has one opto-coupler OCT1 which continuously conducts during the idle state of the circuit. The opto- coupler also automatically busies the circuit under fault conditions.   <IMAGE>
Patent GB-2078143-A (GB)
Title: Machine for processing rubber bodies of revolution
IPC: B23Q7/10
Filed: 1980-06-23
Abstract: The machine has mounted on a bed a charging device (2) for feeding a blank (3) to a gripper mechanism (4). This has a reciprocating motion drive (5) to shift the blank (3) to a blank fastening arrangement (6). This has a drive (12) for imparting reciprocating and a drive (11) for imparting rotary motion thereto. Securing devices (45) are mounted on the bed to retain the blank driving fastening. Devices (49) carry cutting tools (13) to process the blank (3), each having a drive (16) for imparting rotary and axial motion to the cutting tool (13). After processing a pusher (14) with a reciprocating drive (15) laterally removes the blank. The reciprocating drive (12) for the fastening arrangement (6), the reciprocating drive (5) for the gripper mechanism (4) and the reciprocating drive (15) for the pusher (14) are kinematically associated with a distributing shaft (17) rotatable by a motor (18) also coupled with the drive (11) for imparting rotary motion to the fastening arrangement (6). <IMAGE>
Patent GB-2079510-A (GB)
Title: Display system
IPC: G09B25/00
Filed: 1980-07-02
Abstract: A display system provides for the display of groups of letters or symbols illustrating abstract concepts. The system comprises a table having 99 spaces distributed into five columns, the first column comprising one space, the second column comprising two spaces located one above the other, the third column comprising four groups of two spaces located over one another, the fourth column comprising eight groups of three spaces located over one another, and the fifth column comprising sixteen groups of four spaces located over one another. Means are provided which allow symbols to be caused to appear in the said spaces; for example the display means may be constituted by plates arranged to be laid over n the spaces of the table, the plates carrying the markings M,P,X,Y,V,F,a,b,c,d,a,b,c,d, 1 and 0. <IMAGE>
Patent GB-2081285-A (GB)
Title: A process for preparing a silicone molding composition
IPC: C08J3/21
Filed: 1980-08-08
Abstract: A process for wet mixing silicone molding composition comprising mixing a silicone resin and a hydrocarbon solvent to form a solution of 10 to 50% by weight of solids and adding to the slurry a variety of fillers a silicone plasticizer, a pigment and a catalyst to form a paste of about 75 to 95% by weight of solids; kneading the paste to thoroughly mix the ingredients and form a homogeneous mixture; and then removing most of the solvent and breaking of the composition left behind to form the appropriate size particles of a uniformly homogeneous silicone molding composition.
Patent GB-2055544-A (GB)
Title: Troughs
IPC: A01K5/01
Filed: 1980-08-08
Abstract: The invention provides an animal feed trough. The invention solves the problem of animal feed or fluids being fouled in troughs by animals. Essentially, the animal feed trough (1) has at least one inclined open mouth (2) and comprises a flap door (13) hinged to a top member (10) to close the open mouth (2). Springs biased the flap door (13) to close the open mouth (2), thereby preventing the contents of the trough being fouled when animals are not feeding. The flap door (13) is openable inwardly by pressure from an animals head.   <IMAGE>
Patent GB-2085727-A (GB)
Title: Fire fighting buoy for offshore structures
IPC: A62C29/00
Filed: 1980-08-22
Abstract: Water mains for fighting fires on offshore structures are usually energised by Diesel-driven pumps which are located on the structure with the fuel supply. The fuel and the pumps are vulnerable to the fire, and, because of congestion, the fuel supply is limited. If the fire-fighting pumps are housed on a special-purpose buoy moored near the platform, the pumps and the fuel supply are remote from the fire. The buoy would be spar-type with a single mooring line to a cellular concrete anchor base. The compartments in the anchor would be ballasted to allow tow-out; when on location they would house ample supplies of fuel. A water pipe would connect the buoy to a riser at the structure, which would energise the water main. Alternatively the buoy would house only Diesel generators with an electric cable to the sea-bed at the base of structure, where electrically-driven pumps could be located. <IMAGE>
Patent GB-2071129-A (GB)
Title: Non-aqueous gel adhesives
IPC: C09J175/00
Filed: 1980-08-22
Abstract: Synthetic rubber based adhesives comprising a gel solution of     (a) a linear branched-chain polyurethane rubber, (b) a carboxylated butadiene-acrylonitrile rubber, containing at least 50% butadiene by weight, (c) the reaction product of sorbitol and benzaldehyde and, optionally, (d) in a non-aqueous solvent phenolic resin, are form-retentive and are useful in glue-sticks. h