baber/WOPTO huggingface dataset:
Patent GB-1368725-A (GB)
Title: Process for electrically connecting a semiconductor chip to a substrate
IPC: H01L21/00
Filed: 1973-02-01
Abstract: 1368725 Semi-conductor devices NATIONAL CASH REGISTER CO 1 Feb 1973 [14 Feb 1972] 5084/73 Heading H1K [Also in Division H2] In making electrical connections between arrays of sites, e.g. bonding pads, on semiconductor chips and corresponding arrays of sites on substrates a tape or sheet of insulating material carrying corresponding arrays of electrical connector posts or pieces of solder which project from both sides of the tape is brought between chips and substrates at a point to which they are automatically fed so that corresponding arrays are in register for bonding. In the embodiment described with reference to Fig. 1 a transparent insulating belt 54 and the sprocket-holed polyvinyl chloride tape 10 are synchronously driven. At predetermined intervals substrates 30 are placed on belt 54 and chips on arrays of connector posts carried by tape 10. The chips are radiatively heated at 42 by closure of switch 45 to solder the posts to the bonding pads on the chip. The bonding pads 32 on the substrate are brought into register with the posts and soldered thereto by similar radiative heating at 10, though the two soldering operations may be combined, if desired. After cooling under fan 70 the individual devices are separated at 80 by cutting the tape and their encapsulation completed. Typically the connector posts are of copper or gold with tin-lead solder-coated and fluxed ends, though the solder may alternatively or additionally be provided on the bonding pads. The posts may be tapered or cylindrical but to ensure positive location preferably have waisted central sections of the same diameter as the holes in the tape which are formed by a laser or a punch. In an alternative method the posts are replaced by balls or pellets of solder which are thermocompression bonded to the pads. By using capstan drive the need for sprocket holes in the tape may be avoided.
Patent GB-1048226-A (GB)
Title: A process for permanently deforming glass-fibre material
IPC: C03C25/6246
Filed: 1964-02-06
Abstract: A process for permanently deforming glass fibre materials comprises preforming glass fibre material into the required shape and then subjecting the preformed glass fibre material to irradiation from a radio-active source to render the shape permanent.  The glass fibre material is subjected to doses of g  radiation emitted by cobalt 60 of 2 x 107 or 4 x 107 roentgen. a  and b  rays may also be used.
Patent GB-448355-A (GB)
Title: Safety window chain
IPC: E05C17/36
Filed: 1935-02-18
Abstract: 448,355. Window fastenings. SMITH, F. C., 18, Bournevale Road, Streatham, London. Feb. 18, 1935, No. 5157. Addition to 367,730. [Class 44] A chain-type fastening for windows adapted to secure the window closed or allow limited opening movement comprises a flanged or dished plate A secured, by screws &c., through holes D, to the meeting rail of the upper sash, and formed with a slot B having recesses B<1>, B<2> the meeting rail of the lower sash having fixed thereto a flanged or dished plate E provided with an elongated slot F. The lefthand end of slot F is located near the upper edge of the plate, the right hand end, which is located near the lower edge of the plate, having a recess F<1> and terminal aperture F2. Studs G, H are connected by a chain or other flexible member, not shown, secured in apertures I, and co-operate respectively with slots B, F. The studs are conical or barrel shaped and of sufficient height to hold the chain &c. clear of the sashes to prevent jamming. To allow limited opening, stud G is engaged in recess B<1> and stud H is moved to the lefthand end of slot F. To hold the window closed, stud H is engaged in recess F<1>. For free opening, stud G is moved to recess B<2>, allowing stud H to be moved to aperture F<2> and lifted out. The detached end of the chain may then be hung on a pin-like projection G<3> on stud G. As an additional fastening for securing the windows closed a bolt J may be provided, shot by spring K into engagement with a slot C<1> in the flange of plate A, and released by knob L sliding in a slot E2. Bolt J may be secured in shot or retracted position by a sliding catch M engaging in front of, or behind, a projection J<1> on bolt J.
Patent GB-987075-A (GB)
Title: Improvements in and relating to nuclear reactors
Inventor: MAILLET ENNEMOND
IPC: G21C3/08
Filed: 1963-02-08
Abstract: 987,075. Nuclear fuel elements. COMMISSARIAT A L'ENERGIE ATOMIQUE. Feb. 8, 1963 [Feb. 9, 1962], No. 5189/63. Heading G6C. A nuclear fuel element comprises a rod 1 of fissile or fertile material enclosed in a can 2 provided with longitudinal sectors of fins 3 oblique with respect to the longitudinal axis of the element, the element being supported within a casing 5, the inside wall of which has a transverse contour 4 which bounds lobes separated by teeth projecting radially inwards to form longitudinal ribs which ensure centring of the rod 1, the lobes co-operating with can surfaces concave towards the lobes to form coolant ducts 6. The element shown in Fig. 1 comprises a rod 1 of star-shaped cross-section having three arms, the ends of the arms being provided with lugs 7 which fit into corresponding slots in the longitudinal ribs of the casing 5 to centre the rod 1 and to prevent its rotation. The transverse contour of the ducts 6, which may be elliptical as shown at 4a or close to a circular form 4b, is of continuous curvature which enables the helical coolant flow produced by the fins 3 to be maintained with the minimum resistance. The rods 1 may have more than three arms and an inner duct, lined or otherwise, for circulation of coolant (Figs. 2, 3 and 5, not shown). In the element shown in Fig. 4, each duct 6<SP>111</SP> is formed by a lobe of the casing 5<SP>111</SP> and the concave surfaces carrying two sectors of fins 3<SP>111</SP> of the can 2<SP>111</SP>. The helical flows in the directions of the arrows a<SP>111</SP> and b<SP>111</SP> in opposite directions are produced by the fins 3<SP>11</SP> of each sector extending in opposite directions (a herringbone arrangement) and the effect of this is to balance the tangential forces due to the thrust of the coolant and reduce the stresses on the lugs connecting the rod 1<SP>111</SP> to the casing 5<SP>111</SP>. In Fig. 6 is shown a variant of the means connecting the rod 1 v  and the casing 5 v , the ends of the arms of the can 2 v  having inclined surfaces bearing on corresponding surfaces on the longitudinal ribs of the casing 5 v  so that the coolant circulating in the direction of the arrows a v  and b v  exerts a moment of rotation on the rod 1 v  about its axis to hold it in position. In this case, a slight rotation of the rod 1 v  in the clockwise direction is sufficient to release it from the casing 5 v . The connection between the rod and the casing may be effected by radial struts interposed between the arms of the rod and the longitudinal ribs of the casing (Figs. 7 and 8, not shown). Specification 907,625 is referred to.
Patent GB-807002-A (GB)
Title: Improvements in or relating to cage nuts
IPC: F16B37/04
Filed: 1956-02-21
Abstract: 807,002. Anchor-nuts. FIELD, C. L. Feb. 21, 1957 [Feb. 21, 1956], No. 5253/56. Class 89(1) An anchor-nut comprises a cage 1 with a domed-part 2 and a continuous-flange 3 for spot-welding to a workpiece, and a nutbody 5 having a spigot 6 passing through an aperture 4 in the domed-part. The spigot is swaged-over to secure the body in the cage. The lower-face of the body is formed with a locating-pilot 7.
Patent GB-393377-A (GB)
Title: A combined valve guide and seating for poppet or mushroom valves
IPC: F01L3/08
Filed: 1932-02-24
Abstract: 393,377. Cylinders. STEWART, J. H., Church Street, Alfreton, Derbyshire. Feb. 24, 1932, No. 5509. [Class 7 (ii).] A combined valveguide and seating-ring 16, 17 is formed so that the guide replaces an existing valve-guide and the ring fits a recess 14 formed in the cylinder block. The guide and ring are connected by links 18, or by a conical and cylindrical member cut away on the side of the passage 11, the opposite side being cooled by the cylinder cooling water. The unit is retained by a nut 20, locked by a set-screw 22, the pressure being taken, either by the ring 17 or a flange on the guide.
Patent GB-166160-A (GB)
Title: Improvements in furnaces
IPC: F23H11/12
Filed: 1917-04-20
Abstract: 166,160. Bennis, A. W. April 20, 1917. Fire-bars and grates.-A travelling grate in which the upper run is preferably inclined, but may be horizontal, is provided with links or bars of the overlapping type having a fuel-supporting surface 19<a>, Fig. 21, (which shows links or bars in their simplest form), inclined to the plane intersecting a pair of pivotal connections 19<c>, 19<d>, one of these connections 19<c> lying outside the projection of the fuel-supporting surface on the plane intersecting the pivotal connections and on the side of the fuel-supporting surface remote from the intersection of the plane of the fuelsupporting surface and the plane of the pivotal connections. The air spaces 19<e> formed between the links or bars are cleared of ashes &c. by the part 19f of the fuel surface as the links or bars travel round the rear supporting drum of the grate. Fig. 3 shows a portion of a grate having links or bars with curved upper surfaces, the central portion 20 of which, or the tangent thereto, lies horizontally when traversing the upper run of the grate and is inclined to the front and rear lips 21, 22, the tangents to which are substantially parallel. The links or bars are provided with lugs 25 for the reception of bolts 28 by which the links or bars are united to form a continuous chain. The sprockets on the driving-drums may engage with the lugs 25 or the bolts 28. In the modification shown in Fig. 6, the bars 32 are connected by bolts 30 to a driving chain which takes the driving strain instead of the bars. The bars are provided with cooling or strengthening ribs 33 beneath the front lip portions and to clear the ribs. According to a modification shown in Fig. 9, the ends of alternate bars engaging with the driving chain are of slightly different design. The bars 34 are provided with lugs 37 arranged on the inside of the driving chain 38, and the bars 35 are provided with lugs 36 arranged on the outside, the lugs being connected to the chain by bolts. Fig. 11 shows a modified form of bar 43 having a detachable fuel surface 42 secured by countersunk bolts 44. The links or bars 70, shown in Figs. 14 and 15, are threaded on bolts 72 secured to the driving-chains, and are provided with flanges 79 forming extensions of the rear lips 81. The spaces 82 between the fuelsupporting surfaces 80 and the flanges 79 permit the passage of air to the fuel and these spaces. Fig. 17 shows a modified form of bar extending across the whole width of the grate and provided with air spaces having enlarged inlets 83 and side flanges 84 for retaining the fuel on the bars. According to the Provisional Specification, the links may be of the drop-link type. The fuel surfaces may be waved or corrugated and the sides of the bars or links may also be formed so as to provide waved, fluted or like air spaces between the bars or links.
Patent GB-1280974-A (GB)
Title: Improvements in and relating to filter inserts
IPC: B01D29/39
Filed: 1970-02-05
Abstract: 1280974 Demountable filter assembly FILTERWERK MANN & HUMMEL GmbH 5 Feb 1970 [6 Feb 1969] 5563/70 Heading BID A filter assembly comprises an annular array of inward-flow tubular sieves 1, of generally sectoral cross-section (Fig. 3), closed at their lower ends and clamped between base plate 15 and upper plate 7 by nut 19 and bolt 17, each sieve engaging in an aperture in plate 7 through which filtrate is discharged and having a lug 21, which hooks over a peg 24 at its upper inner corner, and a peg 28 which engages in a hole in plate 15 at its lower outer corner. Pegs 24, extend from a ring 23 secured to bolt 17. Helical compression springs round pegs 28 urge the sieves upwards and compensate for variations in axial length thereof. Nut 19 has a lifting handle 35 with a side piece 36 which extends between radial ribs on plate 7 when the handle is turned down to prevent the nut being turned inadvertently. The assembly is used in a housing (not shown) and removed and dismantled for cleaning. Plate 7 is lifted, then elements 1 are removed from their mountings and cleaned by brushing in a vessel of liquid. Elements 1 each comprise an inner coarse support sieve 2 and an outer fine sieve 3 which are bent to tubular form and seamed at 31 by soldering. A metal strip of U-section 32 covers the seam and is soldered, clipped or cemented into place. Strips 32 face outwards of the assembly to protect the edges of the sieves.
Patent GB-667563-A (GB)
Title: Coke-ovens with independent flue-structures
IPC: C10B29/04
Filed: 1948-02-25
Abstract: 667,563. Coke ovens. FORSANS, P. E. H. Feb. 25, 1948, No. 5640/48. Class 51 (ii). In a coke oven comprising a base structure made of a material different from that used for the flue structure, the latter rests freely on a bed of granular material such as sand contained in channels in the upper surface of the base structure. As shown, the lower ends of the silica-brick walls 8 of the flues 2 and coking chambers 3 rest on beds of sand 10 in transverse channels 9 formed in the top of the silico-aluminous base structure 1, the joints in the chambers being covered by members 15 and those in the flues by members 16 formed with gas and air ports aligned with the gas and air passages 4-6 in the structure 1. The front ends of the channels terminate in a longitudinal space 12 to allow for expansion, and a clearance 13 is provided between the base structure and the lower ends of the flue partitions 7, these spaces being sealed at the front of the battery by an asbestos joint 14. The bracing structure, Figs. 4 and 6, comprises pairs of upper and lower buckstays 19, 18 interconnected by tie-rods 20, 21, the adjacent ends of the stays abutting against members 22 arranged adjacent the dividing line between the flue and base structures and having flanges 23 secured to a horizontal beam 24 which supports the service platform 25 and is itself supported by pillars 26 from brackets 27 on the foundation 17. This beam is connected at its ends to the oven structure or to a similar beam on the opposite side of the ovens by tierods. The adjacent ends of the buck-stays are pressed against the flue and base structure respectively by jacks 31, 30 which may comprise resilient members and are independently adjustable to compensate for the differential expansion of the two structures. Specification 579,268 is referred to.
Patent GB-988380-A (GB)
Title: Improved hinge
Inventor: SHAW LESLIE RALPH
IPC: E05F1/12
Filed: 1962-02-15
Abstract: 988,380. Hinges. BLOXWICH LOCK & STAMPING CO. Ltd. May 6, 1963 [Feb. 15, 1962], No. 5764/62. Heading E2F. A hinge comprises a lever 21, 26 adapted to carry the bonnet or boot lid of a vehicle and pivoted at 22 to the free end of a hinge arm 23 pivoted at 24 to a bracket 25 adapted to be attached to the vehicle body, the lever having a pin, peg or roller 27 working in a guide slot 28 in the bracket and the hinge arm being loaded by a tension bar 29 adapted to apply to the arm a turning moment opposed to that applied by the weight of the bonnet or lid. The torsion bar carries a roller 33 co-operating with a cam track 34 on the arm, a recess 35 being provided to hold the hinge in the fully open position.
Patent GB-976380-A (GB)
Title: Tamper
IPC: E02D3/068
Filed: 1963-02-13
Abstract: 976,380. Percussive tools. MASTER CONSOLIDATED Inc. Feb. 13, 1963 [March 19, 1962], No. 5853/63. Heading B4C. [Also in Division E1] A tamping tool comprises a shoe 6 providing a pedestal for a cylinder 1 on which a crank-case 13 is mounted for relative movement thereto by means of two relatively-slidable members 9, 10, a flexible bellows 12 between the housing and cylinder, and resilient means such as springs 18, 19, 20, 22, 23, 24 in the cylinder to induce an axial reciprocating jumping movement of the cylinder and shoe. The shoe is secured to the lower end of the cylinder via an end plate 2, the upper end of the cylinder being closed by an end plate 3. A hollow shaft 10 passes into the cylinder and has fixed thereto a piston-like member 15 which divides the cylinder into upper and lower chambers 26, 25 respectively, a set of the springs 22, 23, 24 being located in the upper chamber and a set 18, 19, 20 in the lower chamber. The upper end of the shaft 10 passes into a crank-case 13 and is secured to a yoke member 35, Fig. 3, which is reciprocated by means of a connecting rod 41 and crank 42, the latter being rotated via a gear 48 driven by an internal combustion engine 62. Before operation of the tool oil is fed via a hole 82 in the crankcase where it drains through holes in the bottom of the latter, interior of the bellows and holes 31 in the upper end of the cylinder and the cylinder then filling up to a plugged sight hole 30. In operation, upon movement downwardly of the shaft 10 the lower set of springs 18, 19, 20 are compressed so that upon the commencement of the upward travel of the shaft, the cylinder is caused to jump vertically; the subsequent compression of the upper set of springs causes a similar downward thrust on the cylinder. The relative movement of the cylinder and pistonlike member 15 is dampened by means of the oil in the cylinder being forced from one chamber to the other via the clearance space between the piston and cylinder. In order to lubricate the various parts in the crank-case, oil is forced upwardly through the hollow shaft 10 by means of a plunger 9 secured to end plate 2 and movable within a bore in the piston 15. The shape of the bottom of the shoe 6 is such that as the tamper jumps up and down it also moves forward.
Patent GB-1426063-A (GB)
Title: Instrument for use in setting roller guides an roll pairs
IPC: B21B38/00
Filed: 1973-02-06
Abstract: 1426063 Rolling mill guides MORGARDSHAMMAR AB 6 Feb 1973 [7 Feb 1972] 5867/73 Heading B3M [Also in Division G1] The setting of a pair of rolls 1 or of a pair of guide rollers in a guide 2 is gauged by shining a beam of light from a source 5 into an optical instrument 3 which includes a mirror 6 and a ground glass plate 11, and measuring the image on the plate by means of rulers 15. The instrument 3 is rotatable about the axis of the beam of light. The rulers are moved by a calibrated wheel 15.
Patent GB-414798-A (GB)
Title: Improvements relating to apparatus for delivering lubricant under pressure
IPC: F16N13/08
Filed: 1933-02-27
Abstract: 414,798. Dispensing liquids. CHALMERS, R. A., and TECALEMIT, Ltd., Great West Road, Brentford, Middlesex. Feb. 27, 1933, No. 5893. [Classes 102 (i) and 102 (ii).] Apparatus for discharging lubricant from a drum 1 comprises a bucket pump 3, which is provided with a large air vessel 16 and a pressure gauge 18, thus permitting accumulation of lubricant under pressure above the bucket 4, the lubricant being discharged by opening the valve 20 of the hose 19. Excess pressure is avoided by means of a byepass valve 21 between the air vessel 16 and the container 1. The bucket comprises a cup-leather 4a clamped between a perforated washer 4b and a member 4d forming the seating of the valve 5. The bucket is operated from a hand-crank 14<a>, and the rod 6 is of sufficient length to permit dispensing with a connecting-rod. Specifications 1200/98, 12176/02, 24279/03, [all in Class 102], 11472/11 and 124,021, [both in Class 102 (i)], are referred to.
Patent GB-855637-A (GB)
Title: Electromechanical transducer
IPC: G01D5/22
Filed: 1959-02-20
Abstract: 855,637. Position indicators. CANADIAN WESTINGHOUSE CO. Ltd. Feb. 20, 1959 [March 28, 1958], No. 5913/59. Class 40 (1). A device for measuring the relative positions of two objects comprises, as shown in Fig. 1, a cylindrical member 2 axially fixed relative to one of the objects and having a square thread cut in its surface, and a head 4 attached to the other object and provided with polepieces 6 and 7 having internal threads of similar form to that on cylinder 2, coils 12 and 13 are arranged in head 4 so that their magnetic circuits each include one polepiece, a portion of cylinder 2, and a portion of head 4. The polepieces are spaced by a multiple of the thread pitch plus half a pitch so that, on movement of the head relative to the cylinder, increase in the reluctance of the magnetic circuit of one coil corresponds to a decrease in the reluctance of the magnetic circuit of the other coil and vice versa, the reluctance, and hence the inductance of each coil, varying cyclically with the movement of the head through the pitch of the threads.  The coils may be connected in a bridge circuit, Fig. 2, the bridge being arranged to be balanced with the inductance of the coils equal, i.e. specifying a particular physical relationship between head 4 and cylinder 2. Rotation of cylinder 2 will produce unbalance of the bridge circuit which may be rebalanced by axial motion of the head, the rotation of the cylinder being directly proportional to the axial movement required for rebalance. It is thus possible to define the position of the head relative to a zero position of the cylinder in terms of multiples and fractions of the thread pitch. The transducer may be used in a servo system for positioning the head relative to the cylinder or the indication of the bridge unbalance may be used to manually position the head. Other embodiments are suggested in which only one polepiece is used and the change in reluctance of the magnetic path measured and it is suggested that the sensing head need not completely encircle the cylinder or lead screw being of the section as shown but extending halfway or less round the cylinder. The head may then be built up of flat laminations, making the device more suitable for use at conventional mains frequencies, and the poles shaped to partially surround the cylinder, this form being particularly advantageous when the cylinder 2 is particularly long and requires intermediate support, the coils being wound round the head or polepiece rather than round the cylinder 2, as shown.
Patent GB-1451600-A (GB)
Title: Method of cleaning textile materials
IPC: D06L1/04
Filed: 1973-02-07
Abstract: 1451600 Dry cleaning BROWN & GREEN Ltd 3 Oct 1973 [5 July 1972 7 Feb 1973] 31403/72 and 5915/73 Heading D1P Textile material is cleaned by subjecting it to the action of a liquid containing perchloroethylene and water, the amount of water in the liquid being from 15% to 200% based on the dry weight of the material, and the liquid being at a temperature of at least 25‹C but below its boiling point during at least part of the cleaning action. A de-watering agent may be added to the liquid after the cleaning action to assist in the separation of absorbed water from the material. The material may be given a preliminary and final rinse in substantially pure organic solvent. The process may be carried out in the drum of a dry cleaning machine, the cleaning preferably being effected at a temperature of 40 to 50‹C. Live steam may be injected into the drum prior to final drying of the textile material with heated air, to give a crease-free finish. Additives such as emulsifiers, detergents, soaps, optical brightening agents and bleaching agents may be added to the liquid. The material, which may be in the form of garments, textile piece goods or other articles such as carpets, curtains or overalls may comprise cotton, polyester or mixed cotton and polyester materials. Specification 973033 is disclaimed.