baber/WOPTO huggingface dataset:
Patent GB-1035595-A (GB)
Title: Improvements in or relating to a method and apparatus for the manufacture of semiconductor devices
IPC: H01L21/60
Filed: 1965-06-15
Abstract: 1,035,595. Soldering. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 15, 1965 [June 26, 1964], No. 25182/65. Heading B3R. [Also in Division H1] To bond a wire to a terminal (alloyed electrode) of a semi-conductor device, its end is positioned against the terminal with the aid of the pointed tip of a carbon rod and an electrical pulse is passed through the rod and wire to form the bond without adversely affecting the semi-conductor device. The semi-conductor device may have two or four zones of opposite conductivity type and may be made of silicon or of silicon-germanium alloy, but as described is a germanium PNP transistor. The collector region of the transistor is bonded to a header using a lead-gold alloy. The upper surface of the wafer bears a lead-indium emitter pellet surrounded by a lead-antimony base ring. Emitter and base contact posts pass through insulation in the header. The leads on the header are pushed into a hand-held holder which makes electrical contact to the emitter and base posts. Wires are attached to the upper parts of the posts and terminate close to the emitter and base electrodes. A hand-held pointed carbon rod is used to push a wire into contact with its associated electrode and a current pulse passed from a capacitor, one side of which is connected to the carbon rod by a foot-operated switch and the other side of which is connected to the wire through the transistor holder. The wires are of gold-plated copper, silver-plated copper, or solid gold.
Patent GB-461414-A (GB)
Title: Improvements in or relating to reel for use with film developing apparatus
IPC: G03D13/14
Filed: 1936-09-17
Abstract: 461,414. Reels for photographic developing apparatus. KODAK, Ltd. Sept. 17, 1936, No. 25307. Convention date, Oct. 5, 1935. [Class 98 (ii)] [Also in Group IX] A reel for photographic developing apparatus comprises a pair of reel flanges retained in spaced relation on a radially resilient core which is compressible to permit axial adjustment of one or both flanges. The core 1 of a mouldable material has a wide longitudinal slit 2, the edges of the slit being bent out to form lips 3, 4. Flanges 6, 7 are provided with spiral grooves 11 and holes 8, and are mounted in circumferential grooves 5, the lips 3, 4 engaging in notches 10 in the flanges 6, 7. Compression of the core permits displacement of the flanges to several different positions. Alternatively, the core may be other than circular in cross-section, thereby rendering the lips 3, 4 unnecessary. The flanges may also be smooth in which case a spacing apron is used when winding on the film.
Patent GB-495667-A (GB)
Title: Improvements relating to packing material
IPC: B65D65/38
Filed: 1937-09-20
Abstract: Packing-material, e.g. for ordnance obturating rings, comprises asbestos and calcium hydrate which has been neutralized with a higher aliphatic acid, e.g. oleic or palmitic acid, or a mixture of acids. The asbestos, calcium hydrate and acid or acids are thoroughly mixed until neutralization is obtained, and the packing article of the required form is obtained by moulding under pressure. Breech-obturating rings are provided with an outer armature of wire gauze coated with a thin layer of graphite.
Patent GB-322514-A (GB)
Title: Improvements in gramophones, megaphones, and other apparatus for the recording and transmitting of sound waves
IPC: H04R1/00
Filed: 1928-09-05
Abstract: 322,514. Borgqvist, A. H. Sept. 5, 1928. Tone-arms. - A tonearm b has a number of spirals or convolutions s and a flared extension c which is surrounded by the throat section d of the horn. The section containing the convolutions may be removable so that it can be replaced by a section having a greater or smaller number of convolutions.
Patent GB-1200342-A (GB)
Title: Reinforcing thermoplastic materials
Inventor: DAVIS JOHN HOWARD
IPC: B29B13/00
Filed: 1967-06-02
Abstract: 1,200,342. Compressing fibrous materials. IMPERIAL CHEMICAL INDUSTRIES Ltd. 21 May, 1968 [2 June, 1967], No. 25502/67. Heading B5A. Reinforced synthetic thermoplastic articles are formed by compressing a mixture of two fibrous materials at a temperature between the melting points of the materials, at least the lower melting of the two materials being a synthetic thermoplastic which flows to form a matrix completely surrounding the fibres of the other material. Both materials may be synthetic thermoplastics and the higher melting material may be coated to improve adhesion to the lower melting material and may comprise 2¢ to 75 volume per cent of the fibre mixture. The lower melting polymer may be polypropylene, polyethylene, poly(ethylene terephthalate), nylons, polymers or copolymers of polyvinyl-chloride or polymers or copolymers of acrylonitrile, and the other fibrous material may be one of the above polymers or glass, asbestos, metal or carbon. The article may be formed in a heated press or between rollers heated to the required temperature. The examples relate to the formation of poly(ethylene terephthalate) fibre reinforced polypropylene, asbestos fibre reinforced nylon, carbon fibre reinforced poly- (ethylene terephthalate) and glass fibre reinforced nylon.
Patent GB-804657-A (GB)
Title: Improved hydrostatic power transmission device adapted for use as a brake
IPC: F16D57/06
Filed: 1956-08-21
Abstract: 804,657. Fluid friction brakes. DAIMLERBENZ A.G. Aug. 21, 1956 [Aug. 30, 1955], No. 25550/56. Class 103 (1). [Also in Group XXIX] An hydraulic transmission comprises primary and secondary swash plate pumps, and has an input shaft 3 driving a cylinder barrel 15 having pistons bearing on a swash plate 11 fast with an output shaft 9, and a cylinder barrel 16 fast with the planet carrier of an epicyclic train the sun-gear of which is fast with the input shaft and the ring gear of which is stationary. A swash plate 12 is fast with the output shaft 9. A clutch 2 is provided between the input shaft 3 and an engine-driven shaft, and the input shaft can be held stationary by brake 25. When shaft 3 is braked the high-pressure side of the transmission communicates with the lower pressure side through a relief valve 27 and ducts 33, 34. Valve 27 is loaded hydraulically against opposing spring pressure and serves to limit the braking effect.
Patent GB-361925-A (GB)
Title: Process for the introduction of the decomposition products of glass into vessels and its use for various purposes
IPC: H01J9/395
Filed: 1930-08-27
Abstract: <PICT:0361925/III/1> In the process for introducing the electrolytic decomposition products of glass, e.g. the alkali metals and oxygen, into vessels such as discharge tubes composed wholly or partially of glass or into glass vessels connected therewith, a metallic film on the inner surface of the glass wall forms the internal electrolytic electrode and is less than ,001 mm. thick to allow the passage therethrough of the decomposition products.  To purify rare gases, such as argon, sodium is introduced into a glass vessel 25, Fig. 4, through which the gas is passed.  The vessel is partially immersed in a bath of fused sodium nitrate and sodium is introduced electrolytically, an electrolytic current flowing from the battery 28 through the bath 26 to a metallic film 32, which is located on the inner surface of the vessel and is connected to a conductor 27.
Patent GB-382707-A (GB)
Title: Improvements relating to liquid spraying apparatus
IPC: F04B19/02
Filed: 1931-09-14
Abstract: 382,707. Raising liquids by compressed gas. DEMPSTER, MOORE & CO. (MACHINERY), Ltd., 201, Pollokshaws Road, Glasgow, and ROLLO, J. M., Ardgrochan, Crow Road, Lennoxtown, Stirlingshire. Sept. 14, 1931, No. 25662. [Class 102 (ii).] A tank 3 for containi g liquids to be sprayed or filled or emptied by a hand-driven, oscillating cylinder air pump 1, connected to the tank by a pipe 2. This pipe is connected to one of the two ports on the pump casing, the other being in continuous connection with the atmosphere. These co-operate with a single port in the pump cylinder and thus exhaust from or supply air to the tank 3 according to which direction the pump is rotated. Liquid is supplied to the tank through the inlet 4 and filter 28, exhaust taking place through the pipe 5.
Patent GB-248665-A (GB)
Title: Improvements in micrometer weighing instruments
IPC: G01G1/26
Filed: 1925-10-14
Abstract: 248,665. Caldwell, C. W. Oct. 14, 1925. Steelyard apparatus. - In a weighing- instrument wherein a screw shaft is used to rotate a poise and traverse it along a weigh beam, the shaft also rotates (1) a graduated drum for indicating the lower denominations of weight arranged to be viewed from the purchaser's side of the instrument and co-operating with indicating means on the weigh beam, (2) an indicating disc for higher denomination also arranged at the purchaser's side and having a smaller angular displacement than the shaft. The purchaser's side of the instrument is shown in Fig. 1. The goods on the pan 6 are balanced bv screwing in or out a shaft 8 to which a graduated poise 7 is secured. A scale of higher denominations is provided on the upper edge of a plate 11 fixed on the beam and is read by the salesman against a line 13, the lower denomination reading being taken, from the graduated edge of the poise 7. A graduated drum 15 rotates with the shaft 8 but is journaled on the weigh beam to prevent axial movement. The lower denominations of weight, e.g. ozs., are read from the drum by the purchaser against an edge 18. To transfer to the higher denomination, e.g. 1bs., the drum has a flange 29 with an offset portion 29a, Figs. 1, and IV, which engages the teeth of a crown wheel 28 attached to a dial 25 graduated for the higher denominations of weight. The dial 25 is thus rotated one step for each rotation of the drum 15 and displays its indication through an orifice 27. A spring 31 carried by the drum presses the crown wheel against the rim 29a and takes up the back-lash.
Patent GB-597403-A (GB)
Title: Dehydration of liquids by electrostatic heating
IPC: A23C1/03
Filed: 1944-12-22
Abstract: 597,403. Dielectric heating. STANDARD TELEPHONES & CABLES, Ltd. Dec. 22, 1944, No. 25757. Convention date, March 4. [Class 39 (iii)] Liquid food products such as fruit pulps or vegetable juices, supplied through a perforated delivery pipe 5, are heated and dehydrated in the high-frequency field (10 to 60 mc./sec. or more) between electrodes 8, 8<1> and closely spaced, earthed copper drums 6, 6<1> to which the products adhere. A partial vacuum is maintained in an enclosing chamber 1 and vapours are removed therefrom by means of an exhaust pump 2 and adjustable bleeder opening 4. The drums 6, 6<1> are internally steam-heated and mechanically rotated, the dried product being removed by scrapers 16 and falling into hoppers 17. The spacing between the drums may be adjusted to suit the particular material under treatment. The fields between each electrode and its associated drum are 180 degrees out of phase and may be varied by adjustable tappings from a centrally earthed tank coil connected to the H.F. generator. Further adjustment may be provided by tapering of the air gap between the electrodes and drums, or by providing a portion of the electrode with a corrugated surface.
Patent GB-794259-A (GB)
Title: Means for preheating oil prior to the delivery thereof to a furnace oil burner
Inventor: COOPER REGINALD BRUCE
IPC: F23K5/20
Filed: 1954-09-06
Abstract: 794,259. Heat exchangers. ASSOCIATED BRITISH COMBUSTION, Ltd. Nov. 17, 1955 [Sept. 6, 1954], No. 25798/54. Class 64(3) In an apparatus for heating fuel oil which comprises a plurality of vertical heating tubes 9 each having external longitudinal fins 9a and being embraced by a sleeve 10, the tubes being disposed within a housing 1 having an inlet 6 for oil to be heated, a steam pipe 13 extends within each tube, steam being discharged from the steam pipes into the upper ends of the tubes 9 and flowing thence downwardly towards a condensate collecting chamber 15. Fuel oil passes from the inlet port 6 upwardly outside the elements and is then heated in flowing downwardly through passages 11 (Fig. 2) formed between adjacent fins 9a of the tubes. The heated oil flows to a chamber 7 from which it is discharged through a port 8. Each tube 9 may be formed with one or more circumferential grooves 17 along its length to interrupt the continuity of the pasages 11 and hence retard the downward flow of oil.
Patent GB-731084-A (GB)
Title: Improvements in or relating to methods and electrodes for automatic electric arc-welding
IPC: B23K9/12
Filed: 1952-10-15
Abstract: 731,084. Welding by fusion. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 15, 1952 [Oct. 18, 1951], No. 25857/52. Class 83 (4). In automatic electric arc seam welding, wherein a plurality of coated electrodes each having a core diameter of at least 3.25 mm. are continuously welded by automatically igniting one electrode when the preceding electrode has melted down, the electrodes used have a length of less than 35 cms. The length is preferably 20-27 cms.
Patent GB-1117732-A (GB)
Title: Improvements in and relating to pile fabrics
Inventor: COUQUET PIERRE
IPC: D04H11/04
Filed: 1964-06-23
Abstract: 1,117,732. Making pile fabrics. DEBRON CARPETS Ltd. 30 June, 1965 [23 June, 1964], No. 25908/64. Heading D1K. In the manufacture of pile fabrics by pleating a sheet of yarns into corrugationis 13 and applying a bucking of polyvinyl chloride, a sheet of 'paper (indicated in broken line) is fed on the underside of the sheet of yarns and pleated with it to support the corrugations. The backing is applied to the top surface and the paper is withdrawn, thereby producing a loop pile fabric. A second backing may be applied to the other side of the corrugations and the fabric then cut along the centre to produce two cut pile fabrics.
Patent GB-1260560-A (GB)
Title: Apparatus for casting continuous strip
IPC: B22D11/124
Filed: 1969-05-21
Abstract: 1,260,560. Continuous casting. WIENER SCHWACHSTROMWERKE G.m.b.H. 21 May, 1969 [15 Nov., 1968], No. 25910/69. Heading B3F. A continuous casting mould for metal strip has two main moulding surfaces 1, 2 spaced by side members 3, 4. Pressure blocks 5, 5<SP>1</SP>; 6, 6<SP>1</SP> hold the mould parts together. Cooling is provided by metal blocks 9, 10 with coolant bores 11. The blocks 9, 10 extend along only a part of the length of the main moulding surfaces, their length being 1% to 10% less than that of the main moulding surfaces. The pressure blocks 5 are also provided with coolant bores 12 in which the coolant flow may be varied. In operation, uniform cooling over the whole mould cavity is obtained as the short blocks 9, 10 do not remove heat from the mould cavity ends.
Patent GB-1398408-A (GB)
Title: Biaxially oriented laminate and process for making it
IPC: D04H1/54
Filed: 1972-06-02
Abstract: 1398408 Laminates CROWN ZELLERBACH INTERNATIONAL Inc 2 June 1972 [3 June 1971] 25933/72 Heading B5N A biaxially oriented laminate, suitable for use in the manufacture of bags, is produced by thermally consolidating a non-woven web formed of thermoplastic polymer fibres to form a film, stretching the film in one direction to uniaxially orient it, cross-folding the film along at least one fold line into a multilayered structure so that the direction of orientation of one layer is at a cross angle to the direction of orientation of the adjacent layer(s) and adhering the layers together by heat-sealing or by an adhesive. The fibres may be produced by melt spinning or solution spinning and cut into staple fibres, or in the case of ultra-high molecular weight polyolefins by precipitating from a solution thereof, and may be made into a non- woven web on a paper machine. The non-woven web may be consolidated by use of a heated roll completely to the extent that the fibrous material is no longer recognizable or incompletely so that the film retains a porous character. The film may be longitudinally stretched, preferably while heating, to the extent of 2-8 times its original length to produce a film of thickness 0À5-20 mils. The uniaxially oriented film may then be spirally wound and flattened or folded zig-zaggedly and the layers adhered together to produce the biaxially oriented laminate.
Patent GB-1419867-A (GB)
Title: Arrangement for detachably securing a rocket-propelled  missile in a launching tube
IPC: F41F3/052
Filed: 1973-05-31
Abstract: 1419867 Detachably securing missiles in launching tubes; securing missiles in launching tubes MESSERSCHMITT-BOLKOW-BLOHM GmbH 31 May 1973 [11 July 1972] 26078/73 Headings F3C and F3A A rocket propelled missile 5, Fig. 1, is detachably secured in a launching tube 4 by diametrically opposed pins 6 which are attached to the missile 5 and are received in hexagonal recesses 13, Fig. 2, formed in a multipart sleeve 122. Each recess 13 comprises a pair of half recesses 12 provided respectively in projections 14, 15 or 16, 17 in quarter-shells 18, 19 and 20, 21 which form the sleeve 122. The shells 18, 19 are provided with slots 31, 32 and 33, 34 respectively to receive extensions 27, 28 and 29, 30 of the shells 20, 21. Springs 36 are mounted at each side of the extensions and wedges 48, Fig. 1, are engageable between the respective shells. Each wedge 48 is mounted on a pin 49 carried by a part 51 of a dish-shaped member 54 and is urged by a spring 50. The peripheral movement of the shells is limited by pins 45 in a bearing ring 43 which are received in respective slots 46 in the shells. On launching the missile gas pressure removes the device 54, thus the wedges 48 are also removed and the shells are free to move peripherally against the force of the springs 36. The pins 6, being engaged in helical grooves 7 provided in the tube 4, rotate the shells in the direction of the arrows 60, 61, Fig. 2, and allow the missile to emerge unimpeded from the tube 4, Fig. 1. The shells are bevelled at 63, 64 to facilitate the loading of a missile. The part 51 can be removed to permit the withdrawal of an unused missile from the tube 4.
Patent GB-1353393-A (GB)
Title: Process for the preparation of 2alpha,3alpha-epithio-5alphaa- steroids and intermediates thereof
Inventor: HAMASHIMA Y
IPC: C07J71/00
Filed: 1971-04-19
Abstract: 1353393 Preparation of 2,3-epithiosteroids and intermediates in this preparation SHIONOGI & CO Ltd 19 April 1971 [2 April 1970] 26108/71 Heading C2U 2α,3α-Epithio-5α-steroids are prepared by reacting #<SP>2</SP>-5α-steroids with sulphur halides YS n X (wherein X is a halogen atom; Y is a halogen atom or optionally substituted C 1-12  hydrocarbon group, and n is an integer of 2 or more) to form 3#- or 2#-halo-5α-steroid-2α- or 3α-polysulphides and then reacting these with reducing and dehalogenating reagents. Metallic catalysts, e.g. iron, may be used to accelerate the formation of the intermediate polysulphides. In the second step the reducing and dehalogenating reagents can be used simultaneously or separately from each other or the same bifunctional reagent may be used, e.g. an alkali metal sulphide or an alkali metal borohydride. Novel intermediates have the formulµ wherein Z is a divalent oxygen function, one or two monovalent oxygen functions, C 1-12  alkyl optionally unsaturated or substituted by an oxygen function, a nitrogen function, CO 2 H or an alkyl ester thereof, CN, halogen or optionally substituted phenyl; and wherein the steroid nucleus may contain an unsaturated bond or bonds and/or one or more further substituents. These compounds may be interconverted by standard procedures, e.g. oxidation, reduction, acylation and hydrolysis.
Patent GB-742570-A (GB)
Title: Improved control system for variable-speed power transmission mechanism
IPC: F16H61/02
Filed: 1953-06-16
Abstract: 742,570. Change-speed control. GENERAL MOTORS CORPORATION. June 16, 1953 [June 25, 1952], No. 26135/54. Divided out of 742,552. Drawings to Specification. Class 80(2) The subject-matter is an abridged version of the main Specification 742,552, but the claims are directed to the front brake overrun control valve 27 (see abridgment of main Specification) through which brake-apply pressure passes to the front brake servo, the valve being actuated by the same fluid pressure which is supplied to the front brake servo for brake release, to exhaust the brake-apply pressure from the servo; and to the restrictor-valve 28 which delays front brake application during downshift to permit engine speed to rise. Specifications 522,881 and 728,461 also are referred to.
Patent GB-805317-A (GB)
Title: Steerable axle arrangement for motor vehicle trailers
IPC: B62D13/02
Filed: 1956-08-27
Abstract: 805,317. Steering trailers. AMERICAN EUROPEAN ENGINEERING CORPORATION. Aug. 27, 1956 [Aug. 26, 1955], No. 26149/56. Class 79(5) [Also in Group XXXII] A steerable bogey arrangement for a trailer comprises a centrally pivotec longitudinally extending member 23, Fig 1, supporting axles 31, 39 at each end the rear axle 39 being pivoted on a pin 38 integral with th( member 23 and set at an oblique angle to the road, means being provided to cause relative steering movement betweer the rear axle 39 anc the member 23 wher the vehicle frame 11 turns relatively tc the member 23 during steering. In one example, the support member 23, Fig. 2, is pivotally attached to a U-shaped bracket 17 on the frame 12 by a transverse pin 18 passed through an opening 24 in the member 23 and located in position by a pin 19 fixed in an enlarged central portion 20 of the pin 18 and engaging in an oblique bore 25 in the member 23. In steering the vehicle, the relative turning of the frame 11 to the member 23 causes slight sideways tilting of the member 23 resulting in a steering action to the axle 39. The front axle 31 is mounted on pin 30 which is parallel to the roadway so that the member 23 is free to tilt sideways. The Specification states that the front axle 31 may be omitted if the support member 23 is suitably supported above or below the frame 11. In another example, the axle supporting member 50, Fig. 4, is flexibly mounted in a housing 51 between upper and lower rubber cushions 52, 53 and located by lips 56, 57 limited pivoting about a vertical axis being permitted by wedge - shaped sides 58, 59, Fig. 5, of the housing 51. The mounting for the rear axle 70 comprises a bearing block 63 relatively rotatable within the axle about a generally longitudinal axis and mounted on a pivot pin 64 integral with the member 60 and set at an oblique angle to the road. The bearing block 63 is coupled through a crank arm 82 and articulated rod 78 with a T- shaped bar 74 which is pivoted on a transverse pin 75 in lugs 76, 77 mounted on the housing 51. In steering the vehicle, the relative turning of the frame 11 to the support 50 results in rotations of the block 63 about the pin 64 causing a steering action of the axle 70. In another example (not shown), the steerable axle is mounted on a bearing block 63 obliquely pivoted on the forward end of the support member and coupled through links directly to the frame 11.
Patent GB-467814-A (GB)
Title: Improvements in screw-threaded fasteners
IPC: F16B25/00
Filed: 1935-09-23
Abstract: 467,814. Bolts. CLAYTON, C. E. EVERY-. (Illinois Tool Works) Sept. 23, 1935, No. 26352. [Class 89 (i)] A self-tapping bolt is made with a head 12 and cylindrical holding portion A and a hardened threaded tapping portion B which tapers towards the entering end. The thread on the tapping portion is made substantially uniform in height throughout its length and its crown in V-shaped in cross-section. The outer diameter C of the first complete thread at the entering end is greater than the root diameter of the thread on the holding portion A. The bolt is further provided with an unthreaded neck portion 34 flowing into the head and having a diameter greater than the root diameter of the thread. The entering end of the bolt may be made yielding to facilitate screw-cutting by providing a longitudinal recess 30 such as is described in Specifications 386,083 and 386,895.