baber/WOPTO huggingface dataset:
Patent GB-1246899-A (GB)
Title: Improvements relating to methods of forming heating elements for heat exchangers
Inventor: ROSENBLAD AXEL E
IPC: B21D53/04
Filed: 1969-12-23
Abstract: 1,246,899. Making heat exchangers; stamping. ROSENBLAD CORP. 23 Dec., 1969, No. 62587/69. Headings B3A and B3Q. A method of forming heat exchangers with deformable steel plates 1 and 2 comprises welding the peripheries of the plates together and then holding them between fixture plates 36 and 37 so that opposed sides of the plate assembly are engaged by opposed stud heads 51. A complete assembly of fixture plates and a back-up plate 47 is slid into a slot 6 in a pressure vessel 5 and hydrostatic pressure applied to the pressure chambers 9 and 10. When the chamber 9 is pressurized it flexes a plate 8 downwardly to transmit the pressure via the plates 47 and 37 to the stud heads 51 which hold the plates 1 and 2 tightly against the stud heads 51 carried by the lower fixture plate 36. The plate 36 is supported on an unyielding plate 7 which is itself supported by the pressure in the chamber 10. After pressure has been applied to the chambers 10 and 11 the valve 33 is opened to introduce pressurized fluid through a nozzle 4 into the unsecured interior zone of the welded plates 1 and 2 to expand the unsupported areas between the stud heads 51. Thus a plurality of separate passages between sets of dimples and between the dimples and the edges of the plates are formed. The plates can then be spot-welded where the opposed dimples engage. In one embodiment the stud heads 51 are replaced by elongate members.
Patent GB-672783-A (GB)
IPC: F23N1/08
Abstract: 672,783. Valves. PARNALL (YATE), Ltd. Feb. 24, 1950 [Feb. 28, 1949], No. 5463/49. Class 135. Gas control means for an instantaneous water heater comprises a hollow, rotary conical plug 19 with arcuate slot 20 controlling the passage of gas from an inlet 39 to a pilot outlet 5 into which is screwed a union 18, and a port 21 controlling an outlet 4 to a main burner. The outlet 4 is also controlled by a water-flow responsive, spring- loaded valve member 35 offset with respect to the plug and seating on a flange 2. The loading spring 36 is housed in a cover 11 and is adjustable by screwed abutment fittings 37, 38. The plug is actuated through a sleeve 27 having a cross pin 28 which engages a slot 23 in an extension 22 of the plug, and a cross pin 42 engaged by a slot 34 in a knob 24. The pin 28 projects from the sleeve to coact with a stepped slot 31, 32 formed between the housing and a cover 29 to provide a stop for the plug in the position in which gas is supplied to the pilot outlet only. The inlet 39 has an adjustable throttle 7.
Patent GB-775487-A (GB)
Abstract: 775,487. Electric resistances. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 21, 1954 [May 25, 1953], No. 14985/54. Class 37. A method of producing potentiometers and similar electrical components comprises forming a length of resistance wire into a helix, feeding the helix on to a supporting device and regulating the rate of feeding to said supporting device to control the spacing of the turns of the helix. Fig. 1 shows schematically a system for winding a resistive potentiometer 12 in accordance with the law of a reference potentiometer 14. The resistive element 27 is wound from a storage bobbin 10 on to the core 12, the core 12 and the storage bobbin 10 are rotated via differential 21 from a motor generator 22, a drive motor 15 is also connected to drive the master potentiometer 14 and the core 12. As the resistive element is wound on to the core a comparison is made between the potentials at contacts 20 and 23 which move in synchronism along the length of the resistive wire. The difference between the D.C. voltage applied to them is applied to chopper 29 to give a difference signal which is amplified in unit 38 and applied through servo amplifier 40 to the motor generator 22. Thus if too much of the resistive element 27 has been wound on to the bobbin 12 at any instant the speed of rotation of bobbin 10 is reduced; conversely if too little has been wound the speed is increased. Change in speed of the storage bobbin 10 controls the tension in the resistive element 27 and thus the spacing of the turns of the helix constituting the coil on bobbin 12. The chopper unit 29 comprises a vibrating contact, Fig. 2 (not shown), which produces a pulse output of phase dependent upon which of the two resistive elements on the standard potentiometer 14 or core 12 has the greater value at any instant. After the coils have been wound they are maintained in position by treating them with an epoxy resin in a liquid state and subsequentially drying them in an oven. The complete assembly of the potentiometer is shown in Fig. 5, electrical pick-off contact arm 26 moves along its supporting bar 77 as the shaft 80 is rotated. The finger 26 is adapted to ride in the helical groove 81 between adjacent coils of the resistance element. The servo amplifier 40, Fig. 1, may comprise a conventional amplifier with negative feedback, Fig. 3 (not shown).
Patent GB-2000064-A (GB)
Title: Rolling mill with roll bending unit
IPC: B21B29/00
Filed: 1978-06-13
Abstract: A rolling mill includes an assembly which can be withdrawn from the two housings. The assembly has two rolls with each roll having a pair of bearing chocks on the roll necks and a pair of further chocks 9 or 11 positioned outwardly of the bearing chocks one on each of a pair of extensions of the roll necks. Fluid operable means 24 positioned between each corresponding pair of further chocks 9, 11 permit bending forces in one direction to be applied to the rolls; bending forces in the opposite direction are applied to the rolls by fluid operable means 26 acting between the further chock 9 of one roll and a reaction yoke or loop 13 fixed relative to the further chocks 11 of the other roll. <IMAGE>
Patent GB-2002987-A (GB)
Title: Improvements in or relating to radiography
IPC: A61B6/00
Filed: 1978-07-13
Abstract: Computerised tomographic apparatus is described in which a radiation source 25 and an associated detector array 26 execute, concomitantly, reciprocating lateral scanning movements and rotational scanning movements relative to a patient's body, the scanning movements being effected in the plane of a cross-sectional slice of the body which intersects the patient's heart. The patient is located so that the heart is substantially at the centre of the scanning movements. The lateral movements are substantially sinusoidal, arranged so that a substantially linear portion of the movement occurs when the source irradiates the heart, and the rotational movement is continuous or substantially continuous and any pauses are only brief, and during alternate lateral scans when the aforementioned substantially linear portions of movement occur. The scanning movements are synchronised to the patient's heart beats so that the heart is irradiated during a quiescent phase of its movement. <IMAGE>
Patent GB-2030423-A (GB)
Title: Repertory dialler
IPC: H04M1/2748
Filed: 1978-09-19
Abstract: In a repertory dialler, the selection of the wanted number is effected by keying in two or more letter digits using the normal push- button "dialling" keyset each key of which is additionally alphabetically labelled with two or more letters. Each wanted number selection involves setting a separate control key to the "alphabetical" function, and thereafter operating two or more letters keys. Operations may occur under microprocessor control and it is contemplated that the instrument may function as a calculator as well as a telephone. It is also contemplated that the invention be applied to a dial instrument, and that a repertory dialler unit could be a single function unit.
Patent GB-2030899-A (GB)
Title: A detachable blade for a cutting tool
IPC: B23B27/16
Filed: 1978-10-04
Abstract: A detachable blade for a cutting tool has a prismatic form and is of square cross-section with side faces (3) defining trapezoidal teeth (4). Each of the end faces (1, 2) of the blade defines a recessed portion in the form of a frustum of a square based pyramid, the larger square base of which is defined by edges (1d) of the blade joined to the outer edges (4a) of the adjacent end face (1, 2). <IMAGE>
Patent GB-2008732-A (GB)
Title: Fluidized Bed Combustor
IPC: F23R5/00
Filed: 1978-12-14
Abstract: A fluidized bed combustor for burning coal particles to provide combustion gases to drive a gas turbine comprises a housing 1 having a horizontally disposed cylindrical portion 2 and a configurated outlet and inlet portion 3. A perforated cylindrical wall 4 and a cylindrical grid 10 are co-axially arranged within the housing. The grid 10 is spaced inwardly of the wall 4 and both are mounted on a shaft 6 for rotation by a motor 8. Fluidized bed material is formed as a layer on the inner surface of the wall 4 upon rotation of the latter and air is fed through the portion 3 to the bed via the wall 4. Fuel which may be coal is fed to the fluidized bed via an inlet pipe 12 and combustion gases pass through the outlet in portion 3 via the grid 10 which removes solid particles therefrom. Ash is removed from the bed by an outlet 16 which discharges into a receptacle 21. The combustion gases are also ballistically filtered before leaving the combustor. <IMAGE>
Patent GB-2011993-A (GB)
Title: Method and means for feeding a continuous core to a coiling station in the manufacture of coiled coupling elements for slide fasteners.
IPC: A44B19/42
Filed: 1978-12-21
Abstract: Apparatus including a mandrel 13 around which a continuous filament 14 is coiled and which has a guide channel formed longitudinally therein for slidably receiving a continuous core 12 to be positioned within the coil 14', and a holder 17 holding the mandrel 13 and reciprocating in the longitudinal direction in step with the formation of each convolution of the coil 14'. A unit length of the core required for each coil convolution is forcibly pulled away from a core payoff bobbin 24 by a pair of intermittently actuated rolls 25, 26. The holder 17 has passageways 27, 28 through which the core 12 travels from the roll pair 25, 26 to the entrance end of the guide channel in the mandrel 13. The passageways 27, 28 provide several obtuse-angled bends for holding the core 12 in frictional contact with the holder 17, so that the successive unit core lengths are delivered without tension to the guide channel in the mandrel 13 as holder 17 reciprocates. <IMAGE>
Patent GB-2014813-A (GB)
Title: Polarised relay control circuit
IPC: H01H47/22
Filed: 1979-01-24
Abstract: In Fig. 1, when thyristor 20 is fired in response to a change in the input level at 1 there flows through polarised relay switching coil 16, depending on the input level at input 1, either a single current pulse of the one polarity or a single current pulse of the other polarity, 2, 30 are D-intermediate-storage flip-flops; 23, 28, 31 are Exclusive- NOR-gates; and 4, 26 are NAND gates. Thyristor 20 may be replaced by a transistor or a triac. <IMAGE>
Patent GB-2020249-A (GB)
Title: Guiding Leading End of Stretch- Wrapping Webs
IPC: B65B61/00
Filed: 1979-04-12
Abstract: In a stretch wrapping machine a stretchable web of plastics film along the underside of a plate 11 is clamped by clamps 21, 21a, 21b and 21c and then stretched over the articles to be wrapped. To ensure that the film is reliably caught beneath the forward edge clamp 21 and the plate 11 air current is passed over the film to ripple it during its advancing movement The current of air is provided by a perforated air pipe 33. <IMAGE>
Patent GB-2020370-A (GB)
Title: Combustion assembly
IPC: F23R3/10
Filed: 1979-06-01
Abstract: The assembly has an annular flame tube 10 mounted by an arrangement of sleeves 43 and pins 44 in an external casing 14 so as to be capable of expanding and contracting radially relative thereto. An annular baffle 20 is mounted in the flame tube 10 adjacent a perforated, annular end wall 11. Inlet passages 16 have respective fuel sprayers 17 and air swirlers 18 mounted therein to discharge through openings 23, in the baffle 20. The latter is mounted with peripheral clearance in the flame tube and is composed of circumferentially spaced cup-shaped baffle segments 21 having inner and outer lips 24 and 25 facing away from the end wall 11. <IMAGE>
Patent GB-2026627-A (GB)
Title: Seals
IPC: F16J15/32
Filed: 1979-06-15
Abstract: A seal for use between relatively rotatable portions of a gas turbine engine comprises a corrugated sealing member arranged within a clearance between the relatively rotatable portions, the corrugated sealing member being formed from an elongate strip, each corrugation 21a, 21b, 21c being formed such that its axis is at an acute angle to the opposite edges of the strip. An annular side plate 23 may be secured to one or both ends of each corrugation. <IMAGE>
Patent GB-2025299-A (GB)
Title: Device for Cutting Metal Wire into Pieces
IPC: B23D33/02
Filed: 1979-07-02
Abstract: In a device for cutting metal wire into pieces which comprises a fixed bush 17 through which the wire is fed, a mobile knife 14 cooperating with said bush and having an open seat 15 for receiving the wire, a stop 33 axially spaced apart from said bush and a spring clamp 21 cooperating with said seat to retain the wire therein, a removable retainer 32 is positioned between the mobile knife 14 and the stop 33 to hold the wire against bending during the cutting operation. <IMAGE>
Patent GB-2026560-A (GB)
Title: Texturing of yarn
IPC: D02G1/02
Filed: 1979-08-07
Abstract: The invention is concerned with the production of textured yarn from fully synthetic partly oriented yarn (POY), and is directed to reducing the length of the yarn path in producing such yarns. According to the invention the POY, in a first zone, follows a convoluted path within a heater (12) of relatively short length, the yarn being allowed to shrink by a controlled amount. The convoluted path is preferably defined by a pair of rollers (14). The yarn passes from the first zone and then, in a second zone, whilst first at an elevated temperature (produced by heater 12 supplemented if necessary by a further heater (22)), and then whilst cool, to a false twist device (18), at the same time drawing the yarn, whereby the yarn, after emerging from the second zone, can be passed, as a torque stretch yarn, to a third zone where it is treated by travelling through a heater (24) under tension. <IMAGE>
Patent GB-2040450-A (GB)
Title: Gyroscope apparatus
IPC: G01C19/38
Filed: 1979-08-29
Abstract: An instrument for finding the north direction includes a two-axis X, Y electrically-restrained gyro (40) with a substantially vertical spin axis Z and having a position pickoff (24, 30) and a torquer (26, 32) on each of the two mutually perpendicular input X, Y axes, each pickoff output being cross- connected to the torquer of the other input axis; and a north deviation computer (56) which comprises a memory for storing the two signals applied to the torquers (26, 32). The gyro (40) is rotatable through 180 DEG  about a horizontal axis (46) by a servo mechanism (44) after these signals have been stored. Signals then applied to the torquers are fed to the north deviation computer (56) where they are compared with those stored for the elimination of drift and other errors and then computed to provide a north-deviation signal. <IMAGE>
Patent GB-2034130-A (GB)
Title: Protective means for cables and process of manufacturing the same
IPC: H01B13/10
Filed: 1979-09-18
Abstract: The invention relates to protective means 27 for cables 28 to be laid in a trench 25, consisting of two bands of material lying flat against each other, which are connected along the coinciding long side edges, and between which is provided a pulling device 11 for inserting the cables that is at least equally long as the bands of material. The invention also relates to a process of producing protective means of this type, according to which a plastic strip is folded double along its longitudinal axis whilst simultaneously the pulling device is brought in, after which the side edges are fastened to each other. <IMAGE>
Patent GB-2033940-A (GB)
Title: Mobile refreshment equipment
IPC: B60P3/025
Filed: 1979-09-28
Abstract: A vehicle semi-trailer or other transportable room 10 is equipped internally with fittings for conducting bar trade on a substantial scale at open air functions. It is openable over most of the area of one or both sides by the means of movable panels 23-26, which rest on a supporting structure 38, alongside the semi-trailer to provide an extension floor for consumers' use. This is level with the floor 12 in the semi-trailer. The consumers area is provided with access steps and safety rails around it, and is roofed over.
Patent GB-2032578-A (GB)
Title: Pressing or reversing roller for example for a double screen belt dewatering machine
IPC: F16C13/00
Filed: 1979-10-01
Abstract: A pressing or reversing roller (4) for a dewatering machine has a pair of spaced screen belts (6, 6) enclosing a web (7) of material being dewatered. The roller is in two parts (4a, 4b) supported at each end by bearings (5, 5) and at the centre of its length, between the adjacent ends of the two parts (4a, 4b) by a bearing (3) which has a stationary sliding shoe or cover member (2) whose outer radius is the same as that of the roller, to provide a continuous rolling surface for the screen belts and the web. <IMAGE>
Patent GB-2038403-A (GB)
Title: Adjustable Clamp for Fastening Around a Tubular or Bar-like Object
IPC: F16B2/08
Filed: 1979-12-05
Abstract: This invention relates to the field of clamping devices, and particularly to a clamp for fitting around a tubular or bar-like object. The clamp of the invention comprises a strip (1) of flexible material opposite ends of which are formed with interengaging tongues (2), (3), (4), (5) which can be bent into locking engagement with one another. In particular one end at least of the strip is formed with at least one short tongue (5) flanked by two long tongues (4) which are bridged at the tips by a rigid bar (6) and the other end is formed with at least one tongue (3) arranged to be bent over the bar (6) and under the short tongue (5) at the first-mentioned end. The strip is fitted around a tube or bar-like object and when the tongues at opposite ends are engaged with one another the clamp so formed grips the bar-like object firmly. <IMAGE>
Patent GB-2037200-A (GB)
Title: Epitaxial solidification
IPC: C30B11/14
Filed: 1979-12-06
Abstract: The starter section 32 of a directional solidification mold 20 contains a seed 28. Molten metal is flowed over and about the seed 28 to heat and partially melt it. A selector section 34 of the mold has reduced cross section compared to the starter section so that only epitaxially solidified metal will be formed in the article section. A barrier layer 40, preferably of ceramic material, resistive to molton metal is preferably applied to portions of the seed to facilitate its removal and reuse. <IMAGE>
Patent GB-2046774-A (GB)
Title: Articles of Manufacture Having Adhesive Properties
IPC: C09J135/08
Filed: 1980-03-21
Abstract: Various articles of manufacture are described, each such article having adhesive properties and comprising a plastics matrix in which is dispersed a gelatinous adhesive composition comprising the product resulting from heating together components (a) and (b) to promote chemical reaction between the two said components, component (a) being at least one polyhydric alcohol, and component (b) being a material selected from gelatin, naturally occurring high molecular weight polysaccharide gums, and resins which are a copolymer of a vinyl ether and an organic acid anhydride or its free acid.
Patent GB-2048220-A (GB)
Title: Lamp Carton
IPC: B65D85/42
Filed: 1980-04-24
Abstract: A carton for light bulbs comprises a four-sided box open at the bottom and closed at the top by flaps 10, 11. Sides 4 (not visible) and 6 each have two folds extending from the top edge along sloping lines to opposite corners of the box so that the upper parts of the other two sides 3, 5 can be folded towards one another. Notches 7 are used to retain the bayonet pins of a bayonet lamp, although the carton may be used with screw-ended lamps. <IMAGE>
Patent GB-2074839-A (GB)
Title: Method of Producing Simulated Back Bacon
IPC: A23L13/00
Filed: 1980-05-02
Abstract: The invention relates to a method of producing simulated back bacon using a stainless steel cooking pot having a base 10, a hinged lid 13 and shaped in cross section like a bacon rasher. To maintain the lid closed pressure is applied by eccentric rollers 18 on a shaft 16 rotatable by a handle 17. The method involves the following steps:-   (a) producing small pieces of shoulder of pork and surface shredding the pieces, (b) massaging the small pieces pork in a brine solution to which is added soya concentrate and shredded pork fats.   (c) lining the cooking pot with a plastic liner or bag,   (d) lining the plastic liner with the prepared pork fats,   (e) filling the pot with the massaged cured shoulder apply lid,   (f) cooking in the polythene liner in the closed pot.   (g) cooling in chill, removing from pot.   (h) cold smoking,   (i) slicing to required bacon rasher thickness.   <IMAGE>
Patent GB-2056624-A (GB)
Title: Valve
IPC: A62C35/02
Filed: 1980-08-04
Abstract: A valve for sealing off pressurized fluid for an extended period comprises, a body defining a passageway, a closure member in said passageway for closing off the latter against fluid flow, a pivotally mounted arm for maintaining the closure member in its passageway closing off condition, and a catch for releasably retaining the arm in the valve closed position. In one arrangement, the closure member includes a diaphragm which extends across and divides the passageway and is arranged to burst under a sufficient pressure differential, the arm carrying a backing plate which, in its valve closed position is superimpositioned against one face of the diaphragm to prevent it from bursting.
Patent GB-2089713-A (GB)
Title: Integral wheel and tyre combination
IPC: B29C45/16
Filed: 1980-12-22
Abstract: The invention provides a method of making a combined wheel and tyre element suitable for use in trolleys and toys. The wheel and tyre are produced in a two-shot moulding operation in which one of the elements of the combination is moulded initially from one plastics material and the other element is then moulded from a different plastics material in such a manner that the two elements are secured together by an affinity bond. The strength of the affinity bond avoids the need for interlocking formations securing the wheel and tyre together and this allows a mould to be used which has cylindrical walls which can be withdrawn axially between the moulding steps, thus enabling more rapid and simpler automation of the moulding process.
Patent GB-2066229-A (GB)
Title: Apparatus for producing carbon black
IPC: C09C1/00
Filed: 1980-12-23
Abstract: A vertical-type thermal decomposition furnace comprises a thermal decomposition zone located at an upper portion of the furnace and an aging zone located at a lower portion thereof, the ratio of the diameter of the thermal decomposition zone to the diameter of the aging zone being within the range of from 1.2 to 2.2, and the ratio of the length of the thermal decomposition zone to the total length of the furnace being within the range of from 0.2 to 0.7.
Patent GB-2093108-A (GB)
Title: Lock
IPC: E05C1/16
Filed: 1981-01-16
Abstract: A lockable latch bolt 5 may be retracted by handle-operated follower 15 acting on tail abutment 13, and can be either retracted or dead-locked by a barrel-lock-operated follower (19) (not shown) acting on one side or the other of bolt-tail abutment 12. <IMAGE>