baber/WOPTO huggingface dataset:
Patent GB-1369574-A (GB)
Title: Magnetoresistive sensing device
IPC: G11C11/14
Filed: 1972-09-28
Abstract: 1369574 Magnetic storage devices INTERNATIONAL BUSINESS MACHINES CORP 28 Sept 1972 [26 Oct 1971] 44738/72 Heading H3B A compensated sensing arrangement 10, Fig. 1, for cylindrical magnetic domains 14 propagated along a channel 16 in a magnetic sheet 12 comprises a first magneto-resistive sensing element 10A located adjacent the channel for detecting the presence of a domain, and a noise cancelling second magneto-resistive element 10B located sufficiently remotely from the channel as to be decoupled from the propagated domains, the two elements being connected in series by a conductor 24 to a source 26 of constant current or voltage and having a combined series resistance which, remains substantially constant when both elements are simultaneously coupled by magnetic fields not produced by a channel domain. As shown the channel domains are propagated by the combination of an inplane rotating magnetic field H and an overlay of permalloy T and I bars, and the sheet is subjected to a normal bias field H z . Each sensing element comprises an anisotropic layer of magneto-resistive material, preferably permalloy, connected by a copper or gold conductor 24, the easy axes E.A. of elements 10A and 10B being parallel and normal, respectively, to the direction of current flow through the elements. The total resistance of the two elements is unaffected by the displacement of their magnetization vectors due to the propagating in plane field H, but the presence of a channel domain disturbs the vector of element 10A alone and produces an individual resistance change indicated as a change of voltage V s  across a constant current source 26. The noise cancelling second element 10B may itself be a detection element for determining the presence of a domain in a second propagation channel, Fig. 3, domains in respective channels being propagated in staggered relationship so that their respective arrival times at the associated detection elements 10A, 10B, 10C ... differ and serial outputs are obtained at a sense amplifier 30.  A constructional process is described in which an initial anisotropic thin film is evaporated or sputtered over the surface of the sheet in the presence of a magnetizing field, and a developed photoresist pattern is then used for selectively depositing a thick film of permalloy by electroless plating or electroplating in those areas where the magneto-resistive sensing elements and T and I bars are located. A further layer of photoresist is used for the electroplating of the conductor pattern, and the thin film layer on the remaining surface of the sheet then removed.
Patent GB-1271816-A (GB)
Title: Improved insulating barrier in a magnetic core slot
IPC: H02K3/48
Filed: 1969-09-10
Abstract: 1,271,816. Slitting edges. INDUSTRA PRODUCTS Inc. 10 Sept., 1969 [25 Oct., 1968], No. 44745/69. Heading B4B. [Also in Division H2]  A machine for cutting four slits, as 17a, 17b, 18a<SP>1</SP>, 18b<SP>1</SP>, Fig. 3, in a strip 43 comprises a fixed part 41, Fig. 4, having a parallel-sided slot 45 over which the strip 43 passes, and a movable cutter 51 above the slot which, when depressed, cuts the four slits simultaneously. The cutter comprises a block having a V-shaped opening 56, Fig. 5a, the edges of this opening and the corresponding edges of slot 45 forming the cutting edges. A wedge-shaped guide 60 disposed beneath the strip 43 is mounted on the cutter. The strip 43 may comprise paper, polyester material, or a laminated combination of both.
Patent GB-1482476-A (GB)
Title: Cassette magnetic tape recording and/or reproducing apparatus
IPC: G11B15/10
Filed: 1974-10-16
Abstract: 1482476 Cassette tape recorders SONY CORP 16 Oct 1974 [31 Oct 1973] 44863/74 Heading G5R A magnetic tape cassette 24 is located in an operative position in a recording/playback apparatus by a spring 31 urging the front edge of the cassette against vertical surfaces (29), Fig. 7 (not shown), of a pair of cassette support blocks 26, and by a pair of holding members 137 which engage the top surface of the cassette so that its bottom surface is engaged with horizontal surfaces (28) of the blocks 26, movement of a magnetic head 15 supporting carriage 12 between an inoperative and operative position acting via actuating means to move the holding members 137 between release positions spaced from the operatively located cassette and positions engaging the cassette in the above manner, the members 137 in moving to their engaging positions moving over the top surface of the cassette along a path (A), Fig. 4 (not shown), having a component directed towards the front edge of the cassette so as to also urge said front edge against the vertical surfaces (29) of blocks 26. The cassette 24 is also supported near its rear edge by a pin (27), Fig. 5 (not shown). The holding members 137 resiliently urge cassette 24 on to the surfaces (28) of blocks 26 and are mounted on arms 133 pivoted at 134 on chassis 11. Springs 140 between carriage 12 and arms 133 urge the members 137 to their release positions against stops 141 and movement of carriage 12 to its operative positions acts via pins 139 to swing members 137 to the engaging position. In alternative forms slots (143), Fig. 8 (not shown), in carriage 12 engage pins (142) on arms 133 to swing members 137 to the engaging position, or such movement is effected by links (145), Fig. 9 (not shown), between arms 133 and arms (148) projecting laterally from a carriage positioning control 21. Members 137 may be integrally formed of resilient material with arms 133, or resilient holding members (137d), Fig. 11 (not shown), may be mounted on rigid pivoted arms, or springs (152), Fig. 10 (not shown), may act between parts of the pivoted arms and holding members (137c) thereon to urge the members (137c) on to cassette 24. Ejection is effected by upward pivoting of a platform (34), Fig. 5, under the cassette 24.
Patent GB-1132926-A (GB)
Title: Telescoping steering column
IPC: B62D1/185
Filed: 1966-10-07
Abstract: 1,132,926. Steering columns. BORGWARNER CORP. 7 Oct., 1966 [8 Dec., 1965], No. 44968/66. Heading B7H. An axially adjustable steering column includes a support jacket B formed by telescoping tubular sections 17, 23, having at least one helical garter spring 30, 31 disposed in an annular space between the sections so as to roll therebetween upon axial movement of the sections. The extent to which the two garter springs 30, 31 shown can roll, and hence the extent to which the jacket sections 17, 23 telescope, is limited by steps 17c, 23c and flanges 34, 35 on the respective sections. A device E for releasably positioning the jacket section 23 in the jacket section 17 includes a helical strand 38 mounted between washers 39, 40 carried by the section 17 so as to grip the section 23. One end 38a of the strand 38 is fixed and the other end 38b projects from the column for rotative actuation to unwind the strand and permit adjustment of the section 23. A clamp 20 surrounds the jacket section 17 for connecting the column to a rigid part of the vehicle. The steering shaft A comprises a shaft portion A-2 slidably connected to a lower shaft portion by splines and coupled to an angularly-adjustable upper shaft portion by a universal joint. A transmission shift tube 45 coaxial with the steering shaft carries a shift housing 48 and lever 53. In a modification, Fig. 3 (not shown), one garter spring (31) rolls between the jacket section (17) and the shift tube, and in Fig. 5 (not shown), one garter spring (30) is prevented from rolling and functions as a resilient bushing.
Patent GB-1196659-A (GB)
Title: Polybutadiene and Process Therefor
IPC: C08F136/06
Filed: 1967-10-03
Abstract: 1,196,659. Polymerizing butadiene. FIRESTONE TIRE & RUBBER CO. 3 Oct., 1967 [3 Oct., 1966], No. 45061/67. Heading C3P. Homopolymers of butadiene with a Parallel- Plate Recovery value of at least 0À75 mm. are made by polymerizing 1,3-butadiene in the presence of a lithium hydrocarbon catalyst, e.g. butyl lithium, and at a peak temperature of at least 212‹ F. The butadiene contains as impurities no more than 400 p.p.m. of 1,2- butadiene, 100 p.p.m. of alpha-acetylenes, 200 p.p.m. of carbonyls, and no more than 50 p.p.m. of propadiene, and the total effect of these impurities on the polymerization is no greater than that produced by 400 p.p.m. of 1,2-butadiene. A liquid inert to the catalyst may optionally be present during polymerization.
Patent GB-1321957-A (GB)
Title: Hammer for line printer
IPC: B41J9/133
Filed: 1971-09-28
Abstract: 1321957 Selective printing ODEC COMPUTER SYSTEMS Inc 28 Sept 1971 [20 Oct 1970] 45072/71 Heading B6F  Hammer mechanism.-A plastics injection molded hammer for line printers has a tapered body 2 and a hammer head 4 projecting at approximately a right angle from the longitudinal dimension of the body. A hammer face 6 is secured by means of a pin 28 that is integrally formed with the face 6 and is embedded into the head 4. The coil 8 and core 10 of an electromagnet are seated in the hollow back of the body 2 and an armature 12 is embedded in the base of the body 2. Energization of the electromagnet causes the hammer to pivot against the bias of return spring 20. When the armature 12 makes contact with the core 10, the hammer has a whipping/flexing action to cause impact.
Patent GB-1064287-A (GB)
Title: Distributor plate for packed towers
IPC: F28F25/02
Filed: 1963-11-14
Abstract: 1,064,287. Distributor plates. U.S. STONEWARE Inc. Nov. 14, 1963 [Jan. 28, 1963], No. 45090/63. Heading B1R. A distributor plate for use in a packed gasliquid contact tower, Fig. 1, comprises at least two concentric circular weir walls, 1, 2, 3, Fig. 2, each formed with a series of downwardly narrowing openings 5, 6, 7, and an annular floor 12, 20, between each two walls and contacting each wall, the openings in the first, (as illustrated, the inner) of the walls being located above the openings of the second of the walls, with the floor contacting the first and second walls respectively below the openings, and between the top and bottom of the openings therein. Circular baffles, 14, 22 between each two walls inhibit surge of liquid across the floor. Liquid is supplied to stilling sump 9 from delivery means 50, or feed 72 of collector 71, overflows from annular floor 10 through openings 5 on to floor 12, and overflows from 12 through 6 on to 20, gas passing countercurrently through the openings 6, 5. Thus the amount of liquid flowing through each first wall of two is restricted and regulated by the narrow bottoms of the openings, while liquid simultaneously flows freely through the wider upper parts of the openings in the second of each two walls.
Patent GB-1159565-A (GB)
Title: Improvements in or relating to Apparatus for Working Materials by means of a Beam of Charged PArticles
IPC: H01J37/301
Filed: 1966-10-11
Abstract: 1,159,565. Electron beam apparatus. UNITED AIRCRAFT CORP. 11 Oct., 1966 [23 Oct., 1965], No. 45473/66. Heading H1D. In an electron beam apparatus, e.g. for machining or welding, in which the beam is brought out from the gun chamber 1 and an intermediate chamber 4 through an open aperture 8 on to the workpiece 13 located in a high pressure gaseous environment, or in which the gun chamber having a glow discharge cathode is at a higher pressure than the working chamber, a narrow plate 6 is provided within the chamber 4, or within a working chamber at lower pressure, to deflect and diffuse inflowing gas whereby the pumping of the chamber 4 is facilitated. The plate 6 may have a centrally raised portion, as shown, or may be flat, or the plate may he replaced by two slightly overlapping portions having bevelled edges with recesses partially surrounding the electron beam, Figs. 5 and 6 (not shown). In this latter embodiment an aperture for the beam may be provided in one of the plate portions. In another embodiment a diffuser plate may be cantilever mounted on one side of the beam only, Figs. 3 and 4 (not shown). In the arrangement shown, a conduit 11 is provide in the conically shaped wall 14 to provide a high pressure gas flow across the aperture 8 and towards the workpiece 13. The conically shaped wall 14 may be replaced by a flat wall and the conduit 11 by a tube at an angle to the aperture 8. Several intermediate chambers 4 may be provided each having a diffuser plate.
Patent GB-1179868-A (GB)
Title: Oil-Soluble Metal Sulfonates and Lubricants containing them
IPC: C07C2/10
Filed: 1967-10-05
Abstract: 1,179,868. Alkylaromatic sulphonate salts. ESSO RESEARCH & ENG. CO. 5 Oct., 1967 [25 Nov., 1966], No. 45509/67. Heading C2C. [Also in Division C5] A heavy alkylate fraction obtained by alkylating benzene with a high-boiling fraction of the product of dimerising an olefin fraction in the C 5-15  range over a silica-alumina catalyst under specified conditions (see Division C5) is conventionally sulphonated and then neutralized, either directly with alkaline earth metal base, or with alkali metal base followed by double decomposition to give the alkaline earth metal sulphonate. The product is used as a lubricant additive.
Patent GB-1020872-A (GB)
Title: Nickel-base alloys
IPC: C22C19/00
Filed: 1962-11-30
Abstract: An alloy consists of by weight 50-64% Ni and 50-36% Ti except for impurities, and has the structure of a uniform TiNi phase with or without a dispersed TiNi3 phase.  The alloy may be hot-worked e.g. rolled in the as-casted condition between 650 DEG C. and 1100 DEG C., and in the presence of a TiNi3 phase (above 56% Ni) may additionally be subjected to a preliminary heat-treatment e.g. at 950 DEG C. followed by slow cooling, prior to rolling.  The alloy in the as-extruded condition may be water quenched or furnace cooled prior to tempering. An example is given of wrought wire composed of the TiNi phase of 54.5% Ni, 0.1% Fe, remainder Ti.  The alloy is suitable for making consumable arc-melting electrodes.ALSO:An alloy consists of by weight 50 to 64% Ni and 50 to 36% Ti except for impurities, and has the structure of a uniform TiNi phase with or without a dispersed TiNi3 phase.  The alloy may be hot-worked e.g. rolled in the ast-cast condition between 650 DEG  and 1100 DEG  C., and in the presence of a TiNi3 phase (above 56% Ni) may additionally be subjected to a preliminary heat-treatment e.g. at 950 DEG  C. followed by slow cooling, prior to rolling.  The alloy in the as-extruded condition may be water quenched or furnace cooled prior to tempering.  An example is given of wrought wire composed of the TiNi phase consisting of 54.5% Ni, 0.1% Fe, remainder Ti.
Patent GB-1014582-A (GB)
Title: Improvements in or relating to elevators
Inventor: LENTELL JAMES GORDON STANLEY
IPC: B65G69/18
Filed: 1962-12-01
Abstract: 1,014,582. Endless conveyers. CARYWHITE Ltd. Nov. 29, 1963, No. 45568/62. Heading B8A. [Also in Division F4] An elevation for grain or the like comprising a basket carrying endless belt adapted for movement around two vertically spaced axles, contained in a vertical trunk-like chamber, is provided with an axial suction fan located in an aperture in the chamber wall. The aperture is preferably located at the top of the chamber. The fan may discharge dust from the chamber to atmosphere or to a dust stocking. The fan motor is electrically connected to the belt motor, with an overload safety device therebetween.
Patent GB-965351-A (GB)
Title: Purification of unsaturated nitriles
Filed: 1962-12-04
Abstract: A process for purifying an unsaturated nitrile containing hydrogen cyanide in the form of a cyanhydrin which normally tends to decompose during the distillation of the unsaturated nitrile and contaminate the distilled product with hydrogen cyanide comprises adding to the unsaturated nitrile 0.001 to 0.1 pound of oxalic acid per 100 pounds of unsaturated nitrile, and distilling the nitrile in the presence of the oxalic acid. A preferred procedure for the purification of acrylonitrile comprises feeding to a fractional distillation column, near the bottom of said column, a liquid stream of acrylonitrile containing hydrogen cyanide in the form of a cyanhydrin and from 0.001 to 0.1 pound of oxalic acid per 100 pounds of acrylonitrile, vapourising a portion of the liquid from the bottom of the column and condensing the overhead vapours, retaining at least a portion of the condensate of the column and withdrawing near the top of the column a side stream of purified acrylonitrile.
Patent GB-1399826-A (GB)
Title: Electric smoothing irons
IPC: D06F75/38
Filed: 1971-10-01
Abstract: 1399826 Electric irons BRITISH DOMESTIC APPLIANCES LTD 29 Sept 1972 [1 Oct 1971] 45869/71 Heading D1A An iron soleplate 21 tapers substantially to a point at each end, one side 21-1 having a more pronounced convex curvature than the other 21-2. The combined handle and cowl assembly 20 has interchangeable ends 22 and 25 the former providing a water spray operated when a push button 24 actuates a pump 23 with a feed tube 23a from a reservoir 26. The reservoir is filled through an aperture 20e from a recess 20d of the body when the iron is laid on its less convex side. In this position egde 20g of the body raises the soleplate edge above the ground surface. A knob 29 with a lamp 30 and slidable in a horizontal slot 20h controls a thermostat 34. The electric terminals 32'recessed in the sole plate and a co-operating stand are described in Specification 1399827 although alternatively a flexible lead may be provided.
Patent GB-1056070-A (GB)
Title: Improvements relating to gas-cushion vehicles
Inventor: COCKERELL CHRISTOPHER SYDNEY
IPC: B60V1/00
Filed: 1962-12-06
Abstract: 1,056,070. Air-cushion vehicles. HOVERCRAFT DEVELOPMENT Ltd. Dec. 5, 1963 [Dec. 6, 1962], No. 46166/62. Heading B7K. In an air-cushion vehicle, the cushion is contained for at least part of its periphery by a wall structure comprising a plurality of deflectable rib members depending downwardly below the lower part of the vehicle and spaced apart to form a series extending for the said part of said periphery of the cushion, each rib member having a stiffness in a direction normal to said periphery sufficient to sustain the pressure of the cushion when formed, cushioncontaining means extending between the rib members to assist in containing the cushion while permitting variation in the spaced-apart relationship of the rib members and stabilizing means separate from or forming part of said cushion containing means and attached to each rib member and providing a support tending to return said rib members to their positions before deflection. In Fig. I (not shown), each rib member 1 is flexible and is attached to the vehicle by a flexible connection 2 and adjoining ribs are connected by springs 12 which hole them in positional relationship, but permit them to deflect as they pass over obstacles. To contain the cushion a flexible membrane 14 is attached to the inside edges of the members 1. In Fig. 4 (not shown), each rib member is inflatable through a duct 5, the profile of the shins 4 of each rib being maintained by cords 3 and cushion retention is provided by inflatable bags 20, or alternatively by panels of foamed material. The base of each rib may be formed with an abrasion-resistant shoe and ribs which are inflatable may be formed at their bases with apertures to form fluid curtains, similar apertures being provided in cushion-retaining inflatable bags where provided. The ribs may be wider at the top than the bottom and rear and intermediate transverse cushion retaining panels may be provided in which air is blown over the convex surface of a curved member to develop a fluid curtain at the base of the member.
Patent GB-1435826-A (GB)
Title: Chlorination process
IPC: C07C21/09
Filed: 1973-10-03
Abstract: 1435826 3,4 - Dichloro - 1 - butene and trans-1,4-dichloro-2-butene E I DU PONT DE NEMOURS & CO 3 Oct 1973 [4 Oct 1972] 46223/73 Heading C2C A mixture of 3,4-dichloro-1-butene and trans-1,4-dichloro-2-butene is obtained by contacting butadiene with Cl 2  with good agitation in a liquid medium at 0‹ to 120‹ C. while maintaining the concentration of butadiene at 0À05- 1-0 mole per kgm. of reactor solution, the molar ratio of dichlorobutenes to butadiene in the liquid phase not exceeding 30 : 1 and the process being carried out in the presence of a Clsource present in an amount such that the dissolved Clconcentration is 0À2 Î 10<SP>-3</SP> to 50 Î 10<SP>-3</SP> gm. ion per kgm. of reactor solution. The reaction is preferably carried out in a non-polar diluent such as CCl 4  and in the presence of a free radical inhibitor such as O 2  at a partial pressure of at least 1 mm.Hg at 35-90‹ C.
Patent GB-1002339-A (GB)
Title: Radar display for collision warning device and navigational aid
IPC: G01S13/933
Filed: 1961-12-29
Abstract: 1,002,339. Aircraft instruments. D. M. GOODMAN. Dec. 29, 1961 [Dec. 30, 1960], No. 46658/61. Heading B7W. [Also in Divisions H1 and H4] In an anticollision and landing radar system (see Division H4) the range data is displayed on a multicolour C.R.T. having radially arranged phosphors 11, 13, 15, 17, 19 of five different colours. A spiral scan is employed, Fig. 2 (not shown), and each phosphor is scanned for 3300 Ásec., the range data display, however, only takes up 600 Ásec. of this time and the remaining time may be used for the display of additional information such as weather radar.
Patent GB-1283922-A (GB)
Title: Improvements in or relating to internal alignment clamps for pipes
Inventor: BLISS LEONARD CAIUS
IPC: B23K37/053
Filed: 1968-07-16
Abstract: 1283922 Tube expanders; welding COUNTY RIVERWAY BOILERS Ltd 15 Oct 1969 [16 July, 1968 and 2 Oct 1968] 33892/68 and 46827/68 Headings B3J and B3R [Also in Division F2] Apparatus for truing and aligning the opposed ends of a pair of pipes comprises a plurality of shaping and aligning heads movable by at least one power-operated mandrel to engage the mouths of the pipes internally, the heads being in two groups each for engaging only one of the pipes. The heads may be provided with rollers for contacting the pipe-ends, movement of the heads being self-terminating by means of bypass valves or micro-switches. The apparatus may be centred in a pipe by six or eight wheels in two axially-spaced groups, the wheels being expanded by hydraulic or pneumatic power and returned by springs. The or each mandrel is advanced by fluid pressure and returned by fluid pressure or by a spring. The mandrels may produce a fast initial movement of the heads and a slower following movement. Springs and/or power means may retract the shaping heads. In an example, Fig. 1 (not shown), the apparatus trails a battery and is mounted on wheels or a track driven by a motor. Ahead of the apparatus is an electric-powered control transporter with four control cords, one for operating a switch for starting, stopping and reversing the travel motor, a second for operating a switch initiating expansion of the centring wheels, a third for initiating expansion of the shaping heads and a fourth for cancelling the second and third functions. A micro-switch stops the transporter at the end of a pipe. A control rod or electric control cables may supplement or replace the cords, or the transporter may be dispensed with. Instead of using a battery trailer, external electric and fluid pressure supplies may be used. A rubber tyre protects the forward end of the apparatus. If two oppositely acting mandrels are used, Fig. 2, each controlling a separate group of heads 102, 202, the groups may be expanded one after the other so that centring wheels may be dispensed with, the heads being returned by levers 103, 203 operated by the mandrels.