baber/WOPTO huggingface dataset:
Patent GB-1203106-A (GB)
Title: The production of semi-conductor devices
IPC: H01L43/08
Filed: 1967-10-25
Abstract: 1,203,106. Magnetically variable resistors. SIEMENS A.G. 25 Oct., 1967 [28 Oct., 1966], No. 48593/67. Heading H1K. A resistance element whose resistance value varies in accordance with the magnitude of the magnetic field applied thereto is prepared from a wafer of a semi-conductor crystalline material, containing substantially parallel conducting inclusions or having substantially parallel conducting strips disposed on its surface, by attaching the wafer to a suitable flat surface, grinding or etching the wafer to a thickness in the range of from 1 to 100 microns, detaching the wafer from the flat surface and attaching it to its operating support which may be curved or flexible. Thus the wafer may be secured to the flat surface by an adhesive which can be dissolved away at a temperature low enough not to damage the wafer by means of a suitable solvent, ground or etched to the desired thickness, released by means of the solvent, washed away thereby on to a cloth and thence secured by a further layer of adhesive to its final support such as a flexible film (which may for example carry a printed circuit) or the polepiece of a magnet the surface of which may be either plane or curved. Suitable semi-conductor materials are silicon, germanium or A m B v  compounds such as indium antimonide and indium phosphide; in the case of indium antimonide the conducting inclusions may be constituted by needles of nickel antimonide. The wafer is preferably reduced in thickness to betweeen 5 and 50 microns and more especially to less than 20 microns before attachment to the final support; accordingly the air-gap in the magnetic field in which the device is inserted may be made very narrow whereby the magnitude of the magnetic field may be correspondingly large.
Patent GB-1481988-A (GB)
Title: Bubble-type blood oxygenator
IPC: A61M1/32
Filed: 1974-11-11
Abstract: 1481988 Blood oxygenators BAXTER TRAVENOL LABORATORIES Inc 11 Nov 1974 [2 Jan 1974] 48631/74 Heading A5R [Also in Division B1] A bubble-type blood oxygenator of the type having a flexible envelope with sealed portions defining a flow passage with a blood oxygenating portion 22, having a porous plastics sparger 42, and ablood defoaming portion 24, containing a defoaming sponge 26, includes a rigid backing 82 held in place against the flexible envelope by a plastics sheet 96 joined to sheets 10 and 12 of the envelope along heat seals 14, 16, whereby the envelope is maintained in a flat stretched out configuration and, in use, the backing 82 cooperates with the envelope to impart tension to the envelope when the flow passage portions contain blood. The backing 82 comprises two reinforced sheets 92, 94 each having reinforcing members which are disposed at right angles to each other. A hole is provided in the backing 82 adjacent the defoaming sponge 26 and holes are also provided adjacent exit port 40 and a pocket 29 which is for holding a thermometer. An access port 46 is provided through all the layers of the oxygenator to allow passage of wires or tubes therethrough. An inflatable member 59 is provided adjacent the oxygenating flow passage to control the cross-sectional area thereof. A blood-sampling tube 110 is provided for sampling oxygenated blood. Removable tear seals 37 are provided covering inlet ports 36, 38 and a similar seal 35 provides access to exhaust ports 32, 34 and to the syringe receiving portion 111 of sample tube 110. Oxygenation portion 22 is partially separable from the rest of the flexible envelope by tearing along a weakened portion 102.
Patent GB-1064380-A (GB)
Title: Display device for wallpaper, textile and similar materials
IPC: A47F7/17
Filed: 1963-12-10
Abstract: 1,064,380. Display stands for sheet material. K. EXLEY. Oct. 13, 1964 [Dec. 10, 1963], No. 48686/63. Heading A4T. A display device for wallpapers, textile materials comprises a frame or cabinet 1 containing a plurality of spools 5, the rotation of which in either direction may be controlled manually, by springs or electric motor, whereby the material may be withdrawn for inspection through an opening in a front panel 11 over a roller 14. Stiffeners 15 with a pull cord 15X may be attached to the material leading edge and illumination 7 provided. The stand has lower shelves 2. A manual or electric endless chain may carry the spools so that as each one reaches a given position it couples with an electric or manual winding device.
Patent GB-1366089-A (GB)
Title: Electrical connector
IPC: H01R13/633
Filed: 1971-10-20
Abstract: 1366089 Two part couplings SOCAPEX 20 Oct 1971 [23 Oct 1970] 48843/72 Heading H2E A cable plug 12 and fixed socket are rapidly disconnectable by pulling in any direction on the plug. The socket has a tapered cavity, into which a complementary frusto-conical part 14 of the plug fits. Around the inside of the cavity and embedded in the plug are contacts 17, 16. Those on the seket (or plug, in an alternative embodiment (Fig. 5, not shown)) are resilient, while those on the plug (or socket) are rigid and have grooves 24 into which the ends of the resilient contacts fit. Contacts 17 are held between body parts 15, 11. An off-centre projection (23, Fig. 4, not shown) may be provided on the base of the socket cavity, and a matching dimple on the plug, to prevent wrong connection. A movable wedge (61, Fig. 5, not shown) may be provided for adjusting the positions of the resilient contacts. The cable 26 enters through an elastic cone 27. The contacts 17 fit through a sealing member 21.
Patent GB-1420166-A (GB)
Title: Towel dispensing container
IPC: B65D77/20
Filed: 1973-10-22
Abstract: 1420166 Dispensing containers PFIZER Inc 22 Oct 1973 [14 Nov 1972] 49079/73 Heading B8P A container for towels saturated in a solvent liquid comprises a body 10 moulded of opaque polystyrene 0À030 inch thick, an apertured panel 26 retaining the towels 12 and seated on a shelf 24 in the body 10, and a removable lid 36 having finger recesses 46 whereby it can be flexed to release it from projections 38 along two of the edges of the lid. A sealed cover sheet (30), which may be of laminated foil and paper, is provided on a flange 28. The panel 26 may be sonically welded to the shelf 24 and a corner of flange 28 is recessed to facilitate stripping of the cover sheet 30. The sides of the body are slightly concave and strengthened by vertical ribs.
Patent GB-1206644-A (GB)
Title: Method of drawing thermoplastic plastics materials
IPC: B29C51/00
Filed: 1967-10-30
Abstract: 1,206,644. Sheet forming. BORG-WARNER CORP. 30 Oct., 1967 [1 Dec., 1966], No. 49136/67. Heading B5A. Sheet forming apparatus for use in cold forming plastics material includes a male forming member 12, the forward end 12a of which is roughened by e.g. abrading. The roughening obviates slippage of the sheet over the end of the member and thus prevents excessive thinning and perhaps breakage, of the sheet. The surface of the member is characterized by randomly scored discontinuities exceeding 25 microinches (RMS.).
Patent GB-1222626-A (GB)
Title: Flash lamps
Inventor: OHMAE KENJI
IPC: G03B15/04
Filed: 1969-10-09
Abstract: 1,222,626. Flashbulbs. TOKYO SHIBAURA ELECTRIC CO. Ltd. Oct.9, 1969 [Oct. 9, 1968; Aug.25, 1969], No.49624/69. Headings G2A and G2L. A flashbulb having an internal volume of not more than 2.0 cc and containing combustible material 21 and a combustion-supporting gas in an amount equal to 100% to 130% by weight of the chemical equivalent necessary for the combustion of the material 21 has a pair of main lead-in wires 25, 26 connected by an ignition filament 29 and an auxiliary lead-in wire 27 disposed parallel to the main lead-in wire 26, the wire 26 having a diameter in the range of 0À2 mm to 0.6 mm and the spacing between the wires 26 and 27 being not greater than 75% of the diameter of the wire 26. When the bulb is fired the wires 26, 27 undergo partial combustion and fuse together to complete a circuit through which a second bulb can subsequently be fired. A recess 30 may be provided in the glass bead 28 which supports the wires to receive the molten metal. A plurality of such bulbs may be mounted in a holder 40, Fig. 6 (not shown) comprising a supporting member (42) formed with recesses (43) which receive the bulbs and contain aluminium-vapour-deposited reflectors (44).
Patent GB-1281910-A (GB)
Title: Process for the preparation of a porous, silica/alumina-based hydrotreatment catalyst
Inventor: KLINKEN JAKOB VAN
IPC: C07C7/00
Filed: 1969-10-09
Abstract: 1281910 Catalysts SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 9 Oct 1969 [11 Oct 1968] 49680/69 Heading B1E [Also in Division C5] A porous silica-alumina based catalyst is prepared by forming a hydrogel of silica and alumina, calcining the hydrogel, neutralising the calcined xerogel with a nitrogen-containing base, incorporating a compound of one or more of the metals from Groups VB, VIB, VIIB and VIII, preferably V, Mo, W, Re, iron group metals (e.g. Co, Ni) and platinum group metals, and finally calcining the neutralised xerogel containing the metal compounds. The hydrogel may be a cogel of aluminium hydroxide on silica hydrogel. The composition of the hydrogel may vary from 95% SiO 2 -5% Al 2 O 3  to 40% SiO 2 -60% Al 2 O 3 . Many nitrogen-containing bases, including ammonium and tetraalkylammonium hydroxides are specified. Salts of these bases may also be used to treat the xerogel prior to the neutralisation; the salt used is preferably an ammonium or tetraalkylammonium salt of an acid, e.g. nitric acid or a mono- or polybasic carboxylic acid, which does not leave a residue in the xerogel after calcination.
Patent GB-1476839-A (GB)
Title: Electrical storage cell
IPC: H01M50/517
Filed: 1975-12-03
Abstract: 1476839 Terminal arrangement for storage cell M B GERSHMAN E M LAMEDMAN V A LOBANOV M B SHAPOT and S S AXELROD 3 Dec 1975 [3 Dec 1974] 49719/75 Heading H1B An electric storage cell comprises a plastics housing 15, a plurality of electrodes 2 of opposite polarity arranged in respective groups in the housing, the electrodes in each group being connected to a common terminal 12, a pair of recesses 6 in the exterior top of the housing adjacent opposite sides of the housing, the outer side wall 8 of each recess together with the adjacent side wall 7 of the housing defining an upstanding projection through which one of said terminals 12 extends, with a first portion 13 of the terminal located outside the housing and a second portion 12 located inside the housing, the upper edges of said portion 13 being at substantially the same height as the top 11 of the cell. The terminal may have a horizontal part 14 as shown, to make part 13 and cell wall 7 copolanar, thus facilitating assembly of a battery by bolting together terminals 13 of adjacent cells; a filler/gas vent 11 is provided, and the cell may be an alkaline Ni-Fe or Ni-Cd cell or a lead-acid cell.
Patent GB-1068351-A (GB)
Title: Improvements in or relating to the delimbing of trees
Inventor: W LARSON ROBERT
IPC: A01G23/083
Filed: 1963-12-17
Abstract: 1,068,351. Tree felling. BELOIT CORPORATION. Dec. 17, 1963, No. 49783/63. Heading A1E. [Also in Division B5] Standing trees have their branches removed by a shearing head 114 arranged for positioning around a tree trunk and connected to drive means whereby the head is propelled along the tree trunk to cleave off branches by impact. The shearing head comprises a sharp-edged flexible chain 136 one end of which is secured to a spring- loaded drum 138 and the other end of which is secured to an arm 126 movable by means of a hydraulic cylinder 134 to encircle the tree, the drum serving to wind-in the chain as the diameter of the tree decreases. The head is movable on a guide track 110 secured to a travelling boom 74 which is raised and lowered on mast 60 by means of a cable 84 secured to a hydraulic winch 92, the head being further connected to a cable 116 attached to a bracket 76 on mast 60. After debranching the tree is topped by means of a blade 144 movable across the top of head by means of a hydraulic cylinder 154 and lever arm 148. After topping, the lower end of the tree is severed by shear mechanism (94) comprising a pair of sear blades (104) pivotally mounted between upper and lower plates (96, 98) and brought together by two hydraulic cylinders (108) to perform the cutting operation. The severed tree which is held by the mechanisms 94, 114 is then swung into the desired position on the ground. The mast 60 is secured to a pivoted boom structure 50, 32 which is adjustable by cylinder 52. A further cylinder 66 pivots mast 60 in a vertical plane. The boom assembly 32 is mounted on a platform 16 rotatable on a self-propelled vehicle the engine 28 of which also provides hydraulic power for the cylinders.
Patent GB-1155288-A (GB)
Title: Winch Dyeing Machines.
Inventor: WALSOM DEREK JOHN
IPC: D06B3/26
Filed: 1966-11-08
Abstract: 1,155,288. Winch dyeing machines. SAMUEL PEGG & SON Ltd. 17 Oct., 1967 [8 Nov., 1966], No. 49873/66. Heading D1L. A winch dyeing machine includes a kier comprising a horizontal casing 2 having a winch 3, a dye bath 1, and means for heating dye liquor housed therein and is characterized in that the winch and casing constitute a fixed assembly fastened to one fixed end 5 cf the casing, relatively to which the keir is axially movable to provide unobstructed access to the winch and dye-bath. The casing 2 may be provided with revolving castors 21, guided by rails 21, and rollers 9 run along rails inside the casing (10, Fig. 2, not shown) to support this assembly. The casing may 'be removed completely, and in this event fixed jacks 29 are provided, whose rising portions 30 support the free end of the assembly on stiffeners 32. In another embodiment, the dye liquor is circulated through a conduit 13 in the rim of bath 1, which is apertured (13a) to direct liquid downwards and through pipes 12 which spray liquor onto material passing from a roller (14) to the winch, there being also pro vided a liquor heating means (38, 39) and a circulation impeller (41).
Patent GB-1207345-A (GB)
Title: Trailer electrical circuitry
IPC: B60D1/62
Filed: 1967-11-03
Abstract: 1,207,345. Dual supply systems for vehicle trailers. BERG MFG. & SALES CO. 3 Nov., 1967 [8 Dec., 1966], No. 50135/67. Heading H2H. Vehicle trailer apparatus designed to operate at a specified voltage is provided with means for protecting the apparatus when inadvertently connected to a supply having a voltage higher than the specified voltage all the apparatus being mounted on the trailer. Lamps 15 designed to operate at 12 volts and situated on a vehicle trailer are connected to a multiple plug 11 by way of resistors 19 and conductors 13, the resistors normally being short circuited by the closed contacts 23 of relays 27. If a vehicle having a supply of 12 volts is connected to the plug 11 the relays 27 remain unoperated and thus allow the lamps 15 to function normally. If, however, a vehicle having a higher voltage supply, say 24 volts, is connected to the plug 11 the relays 27 operate to open contacts 23 thus inserting the resistors 19 in series with the lamps 15 thus reducing the voltage at the lamps to the designed voltage.
Patent GB-1492588-A (GB)
Title: Silencers for turbomachines
IPC: F04D29/54
Filed: 1974-11-19
Abstract: 1492588 Silencing compressors and fans DEFENCE SECRETARY OF STATE FOR 13 Nov 1975 [19 Nov 1974] 50164/74 Headings F1C, F1G and F1J A silencer for a turbomachine such as a gas turbine engine or a fan jet engine comprises a shroud 3 with a contour which can be varied to govern the air-flow into an annular chamber 7 surrounding rotor or stator blades 1. The shroud may be a band of elastic material such as 2-chlorobutadiene, controlled by the pressure in chamber 7 which is varied by a vacuum pump via a pipe 4. Alternatively, the shroud may comprise interleaved rigid plates operated mechanically. A duct liner 9 of honeycomb construction has a perforated section surrounding the blades, and hinged flaps 8a, 8b are driven inwardly by an actuator to close the perforations under cruise conditions when the shroud is substantially cylindrical. To reduce noise level, shroud 3 and the flaps are moved outwardly allowing air to pass around the blade tips. In an emergency, e.g. if the shroud becomes damaged, flaps 8a, 8b are driven inwardly to close the per-  forations in liner 9.
Patent GB-1023520-A (GB)
Title: De-ice control
IPC: F25B47/02
Filed: 1964-12-09
Abstract: 1,023,520. Defrosting. RANCO Inc. Dec. 9, 1964 [Dec. 11, 1963], No. 50170/64. Heading F4H. A defrosting control comprises an arm movable between defrosting initiation and termination positions, a thermal element adapted to control the movement of said arm and a timer which prevents movement of said arm to its initiation position except at given intervals. As shown, a flexible switch arm 51 carries a contact 50 for snap-acting movement between fixed contacts 49, 50, the arm 51 being actuated by an arm 55 which is pivoted on a knife-edge 57 and is biased toward a position in which contact 50 abuts contact 49 to initiate a depositing cycle. A lever 80 carrying an abutment 90 is pivoted at 81 and biased by a spring 83 into engagement with a rod 76 connected to a bellows 74, the bellows having a sensing element responsive to evaporator temperature. A lever 111 pivoted at 111a carries an abutment 116 which is urged by a spring 114 into engagement with a block 112 carried by arm 55, the lever 111 having a portion 111b which rides on the surface of a clockwise driven cam 110. When a predetermined low evaporator temperature occurs, rod 76 is retracted to allow lever 80 to pivot in a counter-clockwise direction to raise abutment 90 clear of arm 55. The latter is, however, prevented from clockwise rotation as long as portion 111b of lever 111 is riding on the high portions 117a or 117b of the cam surface and contact 50 remains in abutment with contact 52 as shown, so that the refrigeration cycle continues. When portion 111b drops into the low portions 119a or 119b of the cam surface the lever 111 pivots sufficiently to allow arm 55 to pivot into the position in which contact 50 abuts contact 49 and defrosting is initiated. Portion 111b then rides over an intermediate cam suface 118a or 118b which causes lever 111 to pivot arm 55 only to an extent which does not permit further actuation of contact 50. As the evaporator temperature rises rod 76 pivots lever 80 in a clockwise direction and as the temperature rises still further lever 80 picks up a second spring-biased lever 95 to increase the load on rod 76 so that abutment 90 does not engage arm 55 until an evaporator temperature substantially above freezing is reached. Abutment 90 then pivots arm 55 so that contact 50 moves to contact 52 and defrosting is terminated. Should abutment 90 fail to pivot arm 55 then this is effected by lever 111 when portion 111b returns to cam surface portions 117a or 117b. One of the low portions 119a, 119b may be rendered inoperative by an arm 135 as indicated at 135<SP>1</SP> so that only one defrosting cycle can be initiated per cam revolution. The biasing springs for levers 80 and 95 and the positions of abutments 90 and 116 are adjustable. The defrosting control is associated with a reversible cycle heat pump and effects defrosting by actuating the reversing valve.
Patent GB-1216588-A (GB)
Title: Improvements in or relating to patterning devices for circular knitting machines
Inventor: ROBOTTOM PHILIP AMOS
IPC: D04B15/68
Filed: 1968-10-23
Abstract: 1,216,588. Knitting-machines. ,STSBBE MACHINERY Ltd. 15 Oct., 1969 [23 Oct., 1968], No. 50307/68. Heading D1C. In a multifeed circular knitting machine having tiltable selector jacks 24 which move needle jacks 14 and engage them with cam track JT in which patterning is provided at each feed by a component 30 secured to a bracket 27 which component has teeth or prongs which can be removed to produce a set pattern and out on the butts 24c of the selector jacks 24 to move them radially inwardly of the needle cylinder. The teeth are set at an angle to the direction of rotation of the needle cylinder to produce a smooth camming action. As shown in fig. 8 the cam 15 in cam track JT has a vertically movable portion 16 which if lowered allows the needle butts to be engaged by a rotatable cam 21 which can be placed in a position to knit, tuck or miss.
Patent GB-1488322-A (GB)
Title: Metal sealing caps
IPC: B21D51/50
Filed: 1975-12-10
Abstract: 1488322 Caps for bottles EMBALLAGES COURONNE SA 10 Dec 1975 [30 April 1975] 50660/75 Heading B8T [Also in Division B3] A sealing cap for a container with an externally threaded neck has axial corrugations 8. A liner is placed in the cap which is retained on a container by a thread-rolling operation.
Patent GB-1185810-A (GB)
Title: Process of Separating Yttrium and the Elements Lanthanum to Lutecium from Mixtures of such Elements
Inventor: GREINACHER EKKEHARD
IPC: C01F17/17
Filed: 1968-10-25
Abstract: 1,185,810. Separation of rare earths. TH. GOLDSCHMIDT A.G. 25 Oct., 1968 [8 Nov., 1967], No. 50867/68. Heading C1A. With a concentration above 1À5 gm. atoms per litre, rare earth elements are separated by solvent extraction, using an organic solvent, in the presence of aqueous thiocyanate concentrations between 0-01 and 3 M/l. A counter-current partial " reflux " process is uesd, the thiocyanate being recovered by treating the extracted rare earth solutions with hydrochloric acid and then ammonia. Solid ammonium thiocyanate thus precipitated is returned to the extractor. The rare earths are introduced into the process in the form of their chlorides. The organic solvent may be an ester, ether or ketone. More viscous solvents are preferably diluted with a higher boiling hydrocarbon. In an example tributylphosphate diluted with kerosene is used.
Patent GB-1224868-A (GB)
Title: Sample capsule
IPC: B01L3/00
Filed: 1969-01-21
Abstract: 1,224,868. Sample capsule. BECKMAN INSTRUMENTS Inc. 21 Jan., 1969 [22 Jan., 1968], No. 50874/69. Divided out of 1,224,865. Headings BID and B1X. The disclosure corresponds to that of Specification 1,224,865, but the claims relate to the sample capsule illustrated in Figs. 1, 2, which is used in an automatic chemical analyser, described in Specification 1,224,863.