baber/WOPTO huggingface dataset:
Patent GB-2455940-A (GB)
Title: Forward power converter controller
Inventor: JACQUES RUSSELL
IPC: H02M1/44
Filed: 2007-03-30
Abstract: A resonant discontinuous forward converter (RDFC) comprises a switch such as transistor 1004 to cyclically switch DC power to polarity matched transformer 1002, and provides a DC output. A controller 1040 switches switch 1004 on when the rate of change of primary voltage, dv/dt, reduces to below a threshold, adjacent a minimum of the primary voltage, when it is close to 0V. A comparator circuit (fig 5) may detect the primary voltage rate of change by monitoring current in a capacitor 1006 connected to either primary 1002p or an auxiliary winding1004 and which may also support resonance in transformer 1002, to detect a leading signal (fig 6, Sr) and a trailing signal (fig 6, Sf). Either the time of switch off or the leading signal (fig 6, Sr), together with the trailing signal (fig 6, Sf) can be used to estimate a resonance period that is used to determine an on period of switch 1004. The effects of multiple transitions of signals (fig 8b, Sr,Sf) arising from noise, leakage inductance and stray inductance may be avoided by ignoring transitions during periods Sf(a) and Sf(b) which can be fixed or a fraction of the estimated resonance period. Controller 1040 may be implemented as an integrated circuit and provides efficient switching and reduced electromagnetic interference (EMI).
Patent GB-2469508-A (GB)
Title: Network modelling method
Inventor: FOSTER GERARD TERENCE
IPC: H04L12/24
Filed: 2009-04-16
Abstract: The model comprises representing data communications sessions generated by communications terminals or correspondent terminals and received by the communications terminals as the data is transmitted to and received from the communications terminals via the access nodes, and representing processing performed by a core network as the data is communicated to and from the access nodes, thereby modeling a loading on each of the access nodes and the core network. The method further includes dividing the communications terminals, the access nodes and the core network into different groups. For a first group the processing performed by the communications terminals, the access nodes or the core network parts of within a first time period, and an amount of the data communicated between the first group and one or more of the other groups is determined. The process is repeated for a second time interval, and so on on a cyclic basis.
Patent GB-2469684-A (GB)
Title: Air treatment device
Inventor: DUDDINGTON ANDREA
IPC: A61L9/12
Filed: 2009-04-24
Abstract: An air treatment device comprises: a housing (10 fig 1) having at least one air inlet (14 fig 1) and at least one air outlet (18 fig 1) with at least one air passageway therebetween; at least one fan 34 located within said at least one air passageway; at least one air filter retaining means 28 arranged to releasably retain, in use an air filter 26 within a passageway; at least one refill securing means 22 arranged to releasably securing a refill of air treatment agent 20 within the housing; emanation means within the housing; and wherein the housing is provided with a door (12 fig 1) to permit access to at least said air filter retaining means; and wherein the air filter retaining means are configured to move from a first position when the door is closed in which the air filter substantially completely obstructs said at least one air passageway to move to a second position , when the door is open such that the air filter no longer substantially completely obstructs said at least one air passageway.
Patent GB-2469812-A (GB)
Title: Shirt collar and decorative band
Inventor: SMITH PETER
IPC: A41B1/12
Filed: 2009-04-28
Abstract: A shirt collar and decorative band comprises a 'cut away' shirt collar 1 designed to expose a shirt neck collar band 2 onto which a separate decorative band 4 is attached using corresponding fastenings, such as buttons and holes. The decorative band 4 can also be attached to the front of a shirt using corresponding fastenings, giving the individual the option of wearing either one or two decorative band. The band may also be attached using hook and loop or press stud fastenings. The decorative band is intended to provide individual styling of a tie without the associated lack of comfort.
Patent GB-2472633-A (GB)
Title: Floor Tile comprising Guidance Means for an Automatic Guided Vehicle
Inventor: SMITH CHRISTOPHER
IPC: E04F15/022
Filed: 2009-08-14
Abstract: A floor the 2 may be assembled into a flooring assembly. The floor the comprises a guidance means such radio frequency identification (RFID) tags 6, (8 fig.3); a strip 10 preferably of a reflective or magnetic material 10a which forms a track to be followed by an automatic guided vehicle (AGV); the tags are disposed at points along a route to provide information usable for guiding an AGV. Alternatively the guidance means could be a groove 10c formed in the surface of the tile or a bar/ridge 10b or a wire for conveying electrical signals disposed underneath or embedded in the tile. The tile is preferably made of a plastics material having a square shape and the guidance strip is formed in various patterns across the tile (figure 7). The tiles are preferably interlocked by a tongue and groove arrangement or interlocking tabs.
Patent GB-2465448-A (GB)
Title: Scaffolding support frame
Inventor: LYNCH PAUL
IPC: E04G1/15
Filed: 2009-08-17
Abstract: A support frame fog a platform for a scaffolding arrangement is disclosed. The support frame 10 comprises first and second coupling means 16 disposed at a first and second end (of the frame respectively. The first coupling means is disposed at a first distance from a plane of the frame and the second coupling means is disposed at a second distance from the plane of the frame, such that two frames to be coupled to a common upright member of the scaffolding arrangement, and abutted against each other, so that the two frames extend in substantially the same plane with only a minimal separation. The second coupling means is disposed upon a support plate 17 which is arranged to offset the second coupling means out of the plane of the frame. Also disclosed is a platform for a scaffolding arrangement, comprising first and second coupling means located at a first and a second end of the platform, wherein the first coupling means is disposed at a first distance from a plane of the platform and the second coupling means is disposed at a second distance from the plane of the platform.
Patent GB-2462030-A (GB)
Title: Computer telephony-Integration with Search Engine to search information based on obtained telephony information.
Inventor: PICKERING RICHARD
IPC: H04M3/42
Filed: 2007-04-17
Abstract: The invention provides a computer telephony integration comprising: receiving by a computer telephony system an incoming call, obtaining telephony information relating to the call, performing a search with a search engine based on the obtained telephony information, wherein the search is performed across a heterogeneous collection of material not primarily intended for call handling by the computer telephony system to locate search results (e.g. emails, web pages (internet, intranet, extranet) or word processor docs) comprising material that is likewise not primarily intended for call handling, forwarding the incoming call to an agent and using the search results to provide information to the agent. Aspects of the invention include the search having a domain of material held within an organisation, performing a search across multiple servers of the organisation or internet, and wherein the heterogeneous collection of materials includes web pages or word processing documents.
Patent GB-577511-A (GB)
Title: Improvements in or relating to the production of polymeric materials
IPC: C08F214/06
Filed: 1944-05-24
Abstract: A mixture of vinyl chloride and trichloroethylene containing 1 to 5 per cent of trichloroethylene is polymerized, e.g. by heating in a closed system in the presence of water and a catalyst, e.g. a mixture of ammonium persulphate and sodium bisulphite.  The product is soluble in a mixture of toluene and methyl ethyl ketone or acetone.
Patent GB-610208-A (GB)
Title: Improvements in or relating to automatic centre punches
IPC: B25D9/04
Filed: 1946-04-01
Abstract: 610,208. Centre punches. WILLETT, V. W., (trading as LUSHINGTON TOOL MANUFACTURING CO.). April 1, 1946, No. 10034. [Class 61 (ii)] An automatic centre punch comprises a spring-loaded hollow hammer member 26 which is raised into loaded position against the pressure of the spring 25 by the action of the end of the punch spindle 28 on a spring- displaced perforated catch 31 mounted in a cross bore in the hammer member, which latter continues to rise until the conical end 24 of the release pin 23 moves the catch 31 into central position allowing the hammer member to descend so that the internal shoulder 36 thereon delivers a blow on the shoulder 37 at the rear of the punch spindle 28. Release pin 23 is carried by a cap 12 screw-threaded on the end of the barrel 10 to adjust the travel of the hammer member and vary the force of the blow. A weak spring 27 acting to restore the punch 28 to normal position engages between a circlip 29 on the punch and the end of the hammer member.
Patent GB-1182295-A (GB)
Title: Explosive Expansion of Tubes into Tube Sheets.
IPC: B21D39/06
Filed: 1967-03-02
Abstract: 1,182,295. Jointing by tube expanding; welding by pressure. FOSTER WHEELER CORP. 2 March, 1967 [6 June, 1966], No. 10035/67. Headings B3J and B3R. [Also in Division F3] A method of expanding a tube 14 in a tube sheet 16 comprises using a central explosive distributed axially along the tube, and transmitting the explosive force through a tubular member 24 of polyethylene or other resin (list includes "Nylon" and "Teflon," (Registered Trade Mark) having the same flexibility, formability, resilience, density and at least as high a melting- point as polyethylene. The end 18 of the tube may be welded or brazed to the tube plate, and if Á-tubes are expanded, compressed-air in the tubes forces the inserts 24 from the tube-ends. The sheet 16 may be of carbon steel or clad with nickel alloy or stainless-steel and the tubes can be carbon steel, stainless-steel or an alloy such as copper-nickel. Grooves may be formed in the tube-sheet for keying with the tubes, and the explosive charge concentration may be as low as four grains per foot. The force-transmitting tube may be extruded about an explosive core 26 of Primacord. In Fig. 1, two layers 28, 30 of force-transmitting polyethylene &c. are used and an air-gap 34, closed by an end cap 36, to reduce the expansion at the end of the tube. In addition, a lesser charge concentration of four grains per foot may be used in the air gap, or a uniform concentration of 25 grains per foot may be used over the length of the core 26. A paper covering may be placed over the layer 30 to avoid depositing any plastics material in the tube. A modified explosive insert includes a single plastics force-transmitting sleeve (40), Fig. 2 (not shown), on an explosive sleeve (42) which surrounds the explosive core (44). The explosive sleeve may be replaced by a cluster of outer cores (46), Fig. 4 (not shown).
Patent GB-111262-A (GB)
Title: A New or Improved Resilient Seat.
Inventor: TESORIERI ULISSE ALFEO
IPC: B64D11/06
Filed: 1917-07-12
Abstract: 111,262. Tesorieri, U. A. July 12, 1917. Seats.-A resilient seat for use on boats &c. comprises a seat-bottom 11 having crass-bars 10 supported by bars 9 mounted on a bar 8 which is in turn connected to a vertical bar 7. The bar 7 is connected to a rotary sleeve 6 mounted on a horizontal stud 3 secured to the upper end of a double bell-crank level 2 mounted on the base 1 and controlled by adjustable springs 20 secured by nuts 22. The stud 3 is also connected to a screw 12 extending through a guide-ring 13 connected to the base 1 and having thereon adjustable springs 15, 16.
Patent GB-610238-A (GB)
Title: Improvements in underfeed stokers for furnaces of boilers and the like
IPC: F23K3/14
Filed: 1946-04-02
Abstract: 610,238. Screw conveyers. HODGKINSON (SALFORD), Ltd., J., and FELSNER, O. April 2, 1946, No. 10154. [Class 78 (i)] In a mechanical stoker of the underfeed retort type, the fuel is apportioned by varying the speed of horizontal fluted rollers d in hopper A and is conveyed by constant speed screw conveyer c to the retort. In the Figures, shaft g of screw G is driven directly from motor H through gearbox G. Shaft g also drives shaft g<1> of the fluted rollers through arm g<4> which actuates ratchet wheel g<3> through pawl g<2>. Pawl g2 is adjusted by arm g<5> working over quadrant g<6> so as to rotate one or more ratchet teeth at each revolution of g. Motor H also works fan K which blows air through pipe m to the retort. The flow of air is regulated by adjustable damper m<1>.
Patent GB-1463765-A (GB)
Title: Candle-moulding
IPC: C11C5/02
Filed: 1974-03-07
Abstract: 1463765 Moulding candles SPEZIALMACHINENFABRIK HANS KURSCHNER 7 March 1974 [9 March 1973] 10225/74 Heading B5A Candle moulds 9<SP>1</SP> between a base plate 8 and a top plate 5 are cooled by water 10 and project above the top plate so that on cooling and shrinkage of the wax in each mould the wax overflow 14<SP>1</SP> becomes separated from the wax in each mould at the edge 15. The moulds are then supplied one or more times with additional wax to fill the hollow 4. A wick 3 is threaded through each mould from a roll 13 and passes through a seal 12 in a hollow plunger 11 which pushes the candle from the mould whereupon it is clamped by means 2 which is raised to draw the wick through the seal ready for the next casting operation.
Patent GB-391597-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L9/04
Filed: 1932-04-11
Abstract: 391,597. Rotary brushes. HOOVER, Ltd., Perivale, Greenford, Middlesex.- (Hoover Co. ; North Canton, Ohio, U.S.A.) April 11, 1932, No. 10294. [Class 19.] A rotor 12 for use in a vacuum cleaner is provided with a pile deflecting helical rib 14 with a brush 15 arranged between the turns. The rib is of opposite pitch on each side of the mid-point of the rotor.
Patent GB-785065-A (GB)
Title: Air-cooling means for thermionic valves and like discharge tubes
Inventor: MONTGOMERIE GEORGE ALAN
IPC: H01J17/28
Filed: 1955-04-12
Abstract: 785,065. Cooling discharge apparatus. SERCK RADIATORS, Ltd. March 15, 1956 [April 12, 1955], No. 10420/55. Class 39(1). A thin metal tube a, adapted to fit round part of a discharge tube, has secured to it a number of cooling vanes b, curved as shown so as to be parallel to each other, the spaces between the vanes being occupied by thin corrugated metal sheets c. An enclosing outer tube may be added.
Patent GB-1156369-A (GB)
Title: Coated Electrostatic Shields for Electrical Apparatus
IPC: H01F27/36
Filed: 1967-03-06
Abstract: 1,156,369. Transformers. GENERAL ELECTRIC CO. 6 March, 1967 [8 April, 1966], No. 10444/67. Heading H1T. An encapsulated coil unit 12 with cores 14, 16 is provided with an electrostatic shield in the form of a conductive coating 42, one narrow uncoated band such as 44 being provided for each core unit threading the coil. The encapsulating resin also forms a basis for the conductive coating, being loaded with metallic powder or graphite when forming the screen. This is said to overcome problems caused by differential thermal expansion. The high voltage winding 20 may be immersed in a dielectric liquid such as mineral oil, and the winding former 28 may be sealed with glass-reinforced polyester, polyethylene or glass-fibre laminate forming a film 36. The electrostatic shield may be applied to the coil at the same time as it is encapsulated in a suitable mould (Fig. 2, not shown).
Patent GB-1092575-A (GB)
Title: í¸-3-oxo-14ª-hydroxy-androstenes
IPC: C07J75/00
Filed: 1965-08-23
Abstract: The novel D 4-3,17-dioxo-14b -hydroxy-androstane and the corresponding 17b -ol and its esters and ethers are prepared by the methods disclosed in Specification 1,092,574.  D 4 - 3 - oxo - 14a  - hydroxy - 17b  - acetoxy-androstene is prepared by acetylating D 3,5-3-ethoxy - 14a ,17b  - dihydroxy - androstadiene (prepared by reduction of the 17-one, itself prepared by enol esterification of the D 4-3,17-dione) to give the 17b -acetoxy compound, and hydrolysing the enol ester group.
Patent GB-1198123-A (GB)
Title: Process for Preparing a Planographic Printing Master
Inventor: ENGELAND JOZEF LEONARD VAN
IPC: G03G13/28
Filed: 1967-03-06
Abstract: 1,198,123. Printing process; damping solution. GEVAERT-AGFA N.V. 5 March, 1968 [6 March, 1967], No. 10477/67. Heading B6C. [Also in Division G2-3] Damping solutions for use with electrophotographically prepared planographic printing plates (see Divisions G2-G3) contain an oxy acid of phosphorus partially esterified with a polyhydroxy compound. Preferred esters are and phytic acid.
Patent GB-178446-A (GB)
Title: Apparatus for driving talking machines
IPC: G11B15/40
Filed: 1922-04-12
Abstract: 178,446. Allgemeine Elektricitats- Ges. April 12, 1921, [Convention date], Motors, supporting; driving-arrangements.- The spring motor p of a gramophone is maintained wound up by an electromotor m which runs continuously, and acts by its weight through a friction drive, capable of slipping, to drive the spring motor continuously. The electromotor is suspended at one end by a strap, and at the other end by a driving-belt r connecting a pulley s on the electromotor with a pulley k geared by worm l and wheel n with the turntable spindle. A screw t with nut ensures that the driving-end of the motor simply rises and falls. When the spring has run down to such an extent that the turning moment of the electromotor overcomes the resistance of the spring, the spring is wound up again, after which the belt slips.
Patent GB-730620-A (GB)
Title: Improved projector screen installation for the reproduction of moving pictures, particularly stereoscopic pictures
IPC: G03B21/606
Filed: 1953-04-16
Abstract: 730,620. Projection screens. MORROS, B. M. April 16, 1953 [Jan. 26, 1953], No. 10491/53. Class 97 (1). A group of narrow strips with a surface like that of a main undivided screen is arranged at least at each lateral edge of the main screen strips of each group being arranged to extend stepwise towards the observer. The Figure shows one corner of one embodiment with overlapping strips 3 bordering the main screen area 1. Each strip is secured by a flange 6 to a plate 5 having two depending pins 8 guided in a slot 10, perpendicular to the screen plate, in the base-plate 11. One pin pertaining to each screen strip 3 is engaged in a slot 22 in a lever 12 attached to a fixed pivot 13 and a pivot 15. The latter is carried on a screw 18 rotatable by a motor to change the spacing of the strips 3 from the main screen plane, maintaining the spacing of the various strips uniform. Other strips, like the strips 3, may be provided at the top and bottom of the screen. Where, for the projection of stereoscopic pictures, a system of concentric ribs or grooves is provided on the main screen. Other patterns provided on the strips 3 may have a closer spacing but their centres lie on a normal to the main screen passing through the centre of the system thereon.
Patent GB-229531-A (GB)
Title: Improvements in plows
IPC: A01B3/12
Filed: 1924-04-30
Abstract: 229,531. Marks, E. C. R., (Moline Plow Co., Inc.). April 30, 1924. Multiple-furrow ploughs; lifting main frames manually; travelling and propelling gear. - A plough, provided with draught devices that may be adjusted for use with either horses or oxen, is provided with two shares 3, 4, carried by beams 1, 2 connected by braces. The beams are supported by a land wheel crank axle 5 and a furrow wheel axle 6, these axles being journaled directly in openings in the beams. The draught is transmitted to the plough through a bar 9 connected to the rear crank axle 5. A lever 10, pivoted at a point 12 to bars 13, 14, fixed to the beam 1, operates over a toothed sector 15 and is connected by a link 22 to the cranked. axle 5; the lever 10 also carries a toothed sector 20 over which a lever 11, pivoted at 23 on the lever 10. operates. The lever 11 is connected by a link 24 to a crank on the axle 6 and is used to adjust the height of the wheels relatively to each other, actuation of the lever 10 moving both wheels together to raise or lower the shares. In Fig. 1 the plough is shown arranged for horse traction; to adjust it for draught by oxen the wheels are moved further forward by disconnecting the links 22, 24 from the cranked axles 5, 6 respectively and interchanging these axles in their bearings. Both axles are arranged so that their cranks normally point forward, the pivot 12 is shifted forward to a hole 30 in the link 13 and the links 22, 24 connected up again.
Patent GB-1108911-A (GB)
Title: Improvements in or relating to the milling of wheat and wheat products
IPC: B02C9/04
Filed: 1964-03-13
Abstract: Flour with a high degree of starch damage is produced in a roller mill (see Division B2) forming part of apparatus for breaking and reducing wheat products, such as whole wheat grains or purified endosperm particles of a selected size.  The maltose content of the flour increases with starch damage.  Natural enzymes in the flour may be inactivated and replaced by an amylase preparation.ALSO:A roller mill having fluted rolls, the flutes being inclined in opposite directions at the co-operating faces of the rolls, for producing flours with a high degree of starch damage is characterised in that the flutes of one of the rolls are spaced not more widely than twelve per inch and in that the rolls are rotatable at unequal speeds with a differential in the range 8:1 to 80:1.  The flutes of one of the rolls may be spaced more widely than those of the other roll in which case the roll having the more widely spaced flutes is driven as the slower of the two rolls.  The gap between the rolls is preferably adjusted to yield a predetermined proportion of acceptable flour-sized particles. The wheat products to be ground may be whole wheat grains or purified endosperm particles of selected size derived from the products of the 'break' and early 'reduction' sequences of a conventional milling process.
Patent GB-1291635-A (GB)
Title: Apparatus and method for continuous drying of wood veneer
IPC: F26B15/18
Filed: 1970-03-06
Abstract: 1291635 Drying wood veneer MOORE DRY KILN CO OF OREGON 6 March 1970 [27 March 1969] 10758/70 Heading F4G  A process for drying wood veneer of widely differing moisture content and which is peeled from a log containing intermixed heart wood and sap wood consists of (a) passing the veneer portions through a first drying chamber 10 on a conveyer, wherein 30-40% of the veneer is dried to a predetermined moisture content, (b) passing the veneer portions over a moisture detector 15 which marks, with water soluble dye, those portions of veneer which are insufficiently dried, (c) allowing the veneer to arrive on conveyer 20 at which graders at grading stations 25a to 25e remove undyed veneer portions, and (d) passing the insufficiently dried veneer to a second drying chamber of substantially less drying capacity than the first having a vertically disposed, substantially elliptical path, sectioned loop conveyer system 35 with idler rollers 34 supporting the conveyer on the arcuate portions 35c of the loop which carries the veneer from conveyer 31 between webs in sandwich fashion through the centre of air box (48) in area 45, into which hot air from a plurality of spaced orifices is directed at a velocity of 2500 to 10,000 linear feet per minute at a temperature above 350‹ F. in both directions normal to the plane of the veneer. The veneer then moves to area 55 where air at ambient temperatures is directed on to it, and afterwards is passed to a lower level where it is monitored by a second moisture detector 37. Sufficiently dried veneer is removed by graders in second grading station 39, the dyed insufficiently dried material being allowed to pass, via conveyer 18 into the drying oven for second cycle. The second drier is preferably arranged at right angles to the first drier to provide a 90 degree change in grain orientation of the veneer between the two drying stages.