baber/WOPTO huggingface dataset:
Patent GB-1515669-A (GB)
Title: Method of packaging
IPC: B65B53/02
Filed: 1974-10-18
Abstract: 1515669 Shrink-wrap packages IMPERIAL CHEMICAL INDUSTRIES Ltd 18 Sept 1975 [18 Oct 1974] 45224/74 Heading B8C [Also in Division B5] A method of packaging an article comprises stretching a film, made from a thermoplastic composition, in at least one direction at a temperature of up to 25 C. above the Vicat softening point of the thermoplastic composition using a draw ratio of 1À2 : 1 to 2À1 : 1, cooling it in the stretched condition and shrink-wrapping the article to be packaged in the film using a film-reheat temperature of at least said Vicat softening point, the thermoplastic composition comprising a homogeneous copolymer of acrylonitrile and at least one aromatic olefine having a molar concentration of acrylonitrile units of 66 to 93%, a molar concentration of aromatic olefine units of 7 to 34%, and a molar concentration of units of at least one other ethylenically unsaturated monomer copolymerizable with acrylonitrile of 0 to 10%, the quantities being chosen to total 100 mole per cent. The composition also optionally contains a compatible graft polymer having a diene rubber substrate containing 40 to 100% molar of units of at least one conjugated 1,3 diene monomer and 0 to 60% molar of units of at least one other ethylenically unsaturated monomer copolymerizable therewith with free-radical yielding catalysts, the concentration of graft polymer (if any) being such that its rubber content is not more than 50% of the thermoplastic composition. The Vicat softening point of the composition is defined as the value obtained with a sheet specimen using 5 kg load and is a measure of the glass transition temperature of the composition; and by "draw ratio" is meant the ratio of the new and the original lengths in a given direction after, and before, the stretching respectively. The final blend contains 1-50% by weight, particularly 5-15% by weight, of diene rubber substrate. The film, which may be prepared from the specified compositions by any process normally used in the art for shaping thermoplastic material, is preferably stretched biaxially in two, mutually perpendicular, directions. Examples, which illustrate the retraction behaviour and mechanical properties of the thermoplastic sheet material of the specified composition are also described.
Patent GB-1145118-A (GB)
Title: An adjustable guideway for the feeding of record cards
IPC: G06K13/06
Filed: 1967-10-05
Abstract: 1,145,118. Sheet feeding; guides. NATIONAL CASH REGISTER CO. 5 Oct., 1967 [14 Oct., 1966], No. 45367/67. Heading B6B. An adjustable guideway for the feeding of record cards comprises a pair of parallel, spaced-apart walls spring-urged towards one another, which move apart when a record card is inserted between them, and a manuallyoperated locking device which prevents further relative movement of the walls during passage of the card through the guideway. Fig. 1 is an elevation of such a guideway and Fig. 2 a top plan view of a detail wherein a fixed wall 12 and a movable wall 16 together with base 14 define a guideway for record cards 10. The wall 16 includes a bar member 18 which forms one link of a parallelogram linkage, the other links being triangular members 24, 26, which pivot on base 14 about pins 20, 22, and the portion of the base between pins 20, 22, the arrangement being such that bar 18 is always parallel to fixed wall 12; a spring 38 urges the bars 18, 32 towards wall 12, and their movement is limited by stops 40, 42. In use, a card 10 is inserted in the direction A against curved surface 33, thus moving the wall 16 outwards; further outward movement of the wall, e.g. under the action of a skewed card, is prevented by engaging one of the steps 56 of a locking lever 46 with the bar 18, the lever 46 being pivoted about pin 48 by a solenoid 60 operated by a manual switch 58. This guideway can form part of a manually-operated card reader (Figs. 3-5, not shown), wherein the guideway registers the card which is to be read, and the manual operation of the locking lever may also actuate the reading means.
Patent GB-960619-A (GB)
Title: Relay selector system
IPC: H01H47/24
Filed: 1961-05-26
Abstract: 960,619. Photo-electric switching circuits. ATOMIC ENERGY OF CANADA Ltd. May 26,1961 [June 1, 1960], No. 45429/62. Divided out of 960,618. Drawings to Specification. Heading G1A. The subject-matter of this Specification is entirely included in Specification 960,618, but the claims relate to a relay system comprising first and second photo-cells connected in series and arranged for connection across a direct current source, a two-state relay one side of the winding of which is connected to the junction between the photo-cells and the other side to the direct current source through at least one charge storage means whereby the relay is alternately switched between its states in response to alternate illumination of the photo-cells.
Patent GB-1245250-A (GB)
Title: Polyphase compositions and process for their preparation
IPC: C08F110/06
Filed: 1968-09-25
Abstract: 1,245,250. Polyphase composition films; laminates. HERCULES Inc. 25 Sept., 1968 [25 Sept., 1967], No. 45532/68. Headings B5B and B5N. [Also in Divisions B1-B2 and C3] Articles such as films and ribbons comprising solid polyphase compositions containing (A) as continuous phase a crystalline propylene polymer present as a continuous network in crystalline but non-spherulitic state and having an intrinsic viscosity of at least 2; and (B) as a second phase an amorphous organic material which has a theta temperature for the propylene polymer below 160 C. and which can be maintained as a liquid at 110 to 250 C., is a non- solvent for the propylene polymer below 80 C. and has a cohesive energy density of 45 to 100 cals/cc. at 20 C., may be prepared by distributing the propylene polymer in the form of particles of average size 0À02 to 0À5 microns in the fluidized organic material, heating to dissolve the polymer, shaping and cooling, e.g. by compression moulding, extrusion or by casting on steel, chrome-plated brass or tinplate panels, and if desired stretching. Many suitable organic materials are specified including hydrocarbon resins, rosin and rosin derivatives, natural and synthetic rubbers, silicone polymers, chlorinated polyphenyls, chlorinated polyolefins and asphalts; and examples describe the moulding of films from compositions of polypropylene and (16 and 19) hydrogenated polyterpene resin; (17) pentaerythritol ester of hydrogenated rosin; (18) glycerol ester of hydrogenated rosin; and (32) chlorinated biphenyl resin; the extrusion of ribbons from compositions of polypropylene and (33) asphalt; and the casting of films from compositions comprising polypropylene and (21 and 36) wood rosin and methyl ester of hydrogenated wood rosin, together with (23) paraffin wax, (22) wood rosin, paraffin wax and poly(α-methyl styrene), (24) polyisobutylene, (25 and 30) amorphous polypropylene, (27) propylene/ethylene copolymer rubber, (28 and 29) silicone oil, (31) petrolatum and (35) o-dichlorobenzene. Laminates may be prepared using the above compositions as adhesives. In Example 20 papers are coated with compositions comprising polypropylene and hydrogenated polyterpene resin, pentaerythritol ester of hydrogenated rosin, coumarone/indene resin or petroleum resin, and bonded under heat and pressure.
Patent GB-1122236-A (GB)
Title: Improvements in and relating to ceiling linings and the like constructions
IPC: E04B9/24
Filed: 1964-11-09
Abstract: 1,122,236. Suspended Ceilings. H. McASKILL HAY. 5 Nov., 1965 [9 Nov., 1964], No. 45569/64. Heading E1W. Adjacent panels 10, 11 of a wall or ceiling lining are clamped against flanges 14b, 14c of supporting members by the action of headed screws 22a bearing against strips 19 bridging the framing members between the panels 10, 11, the strips being slotted at 20 to permit disengagement of the screw from the strip at one or the other of the panels without actual removal of the screw, but the ends of the strips being so shaped, as by lugs 21, to prevent such disengagement until the screw has been loosened to a prescribed extent. The panels 10, 11 may be stiffened by channels 18 applied to their edges.
Patent GB-1519547-A (GB)
Title: Variable speed constant frequency induction generator system
IPC: H02M5/38
Filed: 1976-11-03
Abstract: 1519547 Frequency changing BORGWARNER CORP 3 Nov 1976 [28 Nov 1975] 45747/76 Heading H2F In a method of controlling an A.C. generating system in which an induction machine 20 is driven as a generator, the generator is excited from a switching circuit 42 including a plurality of controllable switching devices and a pair of bus conductors 25, 26, the operation of the switches is controlled in accordance with a first frequency f1 so as to regulate the voltage across the bus conductors 25, 26 and the switches are controlled in accordance with a second frequency f2 such that the output voltage on the bus conductors 25, 26 is periodically reversed so as to define the frequency of an alternating voltage across the bus conductors 25, 26. As described, the output voltage is monitored at 54 and compared with a reference 53, the error controlling the frequency f1 of an oscillator 32 which feeds the logic circuit 30 so as to control the switches 43-48 in such a way that a D.C. voltage of desired value appears across the load 51. A further oscillator 60 of frequency f2 enables a series of gates 57 so as to modify the control of the switches 43-48 and periodically to reverse the voltage across the load 51. An auxilliary starting supply 62 is provided. The switches may be inverse-parallel connected thyristors, transistors, gate turn-off devices or triacs. Alternatively, each switch may comprise a diode bridge bridged by a single thyristor, transistor or G.T.O. device and may have a commutating circuit (Fig. 4a, not shown). Fig. 5 (not shown) relates to a block diagram of logic circuits. In Fig. 7 (not shown) the switches may comprise three single phase inverters of the centre tapped transformer type.
Patent GB-1040147-A (GB)
Title: Preparation of halogen-containing compounds
Inventor: ANDERSON ROBERT CRAIG
IPC: C07F7/12
Filed: 1963-11-21
Abstract: Halogen containing organo-silicon compounds are prepared by reacting an organo-cyclo-tetra-siloxane with a silane containing at least one silicon-bonded halogen atom, in the presence of an amide of formula RR1N-CHO, wherein R and R1 are each monovalent hydrocarbon groups or hydrogen, and optionally in the presence of magnesium.  Suitable reactants are listed.  In a typical Example (1) octamethylcyclotetrasiloxane is reacted with dimethyldichlorosilane in the presence of N,N-dimethyl formamide giving 1,9 - dichlorodecamethylpentasiloxane and 1,7-dichlorooctamethyltetrasiloxane.
Patent GB-1147826-A (GB)
Title: Improvements in and relating to the testing of high voltage electric cables
Inventor: PAPADOPULOS MICHAEL SAVVAS
IPC: H02G15/068
Filed: 1966-10-14
Abstract: 1,147,826. Cable terminations. BRITISH INSULATED CALLENDER'S CABLES Ltd. 6 Oct., 1967 [14 Oct., 1966], No. 46054/66. Heading H2E. A test end for terminating a high-voltage cable comprises a moulded synthetic resin body 1 having a head 5 and a neck 2 formed with a smooth cylindrical bore 3, the neck 2 carrying a sprayed-on metallic electrode 10 which increases progressively in diameter towards the head as far as a step region 14, after which the increase in diameter becomes smaller or even zero. In the embodiment shown in Fig. 2, which is for a 400 kv. oil-filled cable, the body 5 comprises a cylindrical portion 4 surmounted by parts 15, 16 which taper respectively more and less steeply; a plurality of internally threaded sockets 19 in part 15 provide means to support an oil-pressure cover when the test end is applied to a cable for testing, as disclosed in Specification 1,147,827. An annular groove 7 in the rear face 6 of head 5 provides a turned-over surface on which the inner end of electrode 10 is deposited, and is subsequently filled with a cold setting resin 11 in which are embedded six threaded nylon sleeves 12 which may be used to support an oil container when testing as described in Specifications 893,376, 930,017, and 1,147,827. At the end 8 of neck 2 a metal sleeve 13 is fitted over electrode 10 and a metal coating 17 is sprayed over the upper part of the surface of the sleeve 13, the neck being strengthened where it enters the sleeve by a glass fibre resin bandage 18. A rather simpler embodiment, for 275 kv. oil-filled cables, is also disclosed (Fig. 1, not shown). Exact dimensions for both embodiments are given in the Specification. The electrode 10 may alternatively be made of metal foil or mesh, and may be wholly or partially embedded in the resin of body 1.
Patent GB-1089220-A (GB)
Title: Improvements in or relating to fluid-flow control valves
IPC: F16K31/40
Filed: 1964-11-13
Abstract: 1,089,220. Valves. R. D. COOKSLEY. Nov. 13, 1964, No. 46233/64. Heading F2V. A valve device comprises a main valve piston 12 slidable with clearance 25 in a chamber 13. Inlet pressure communicated to the chamber through the clearance and holding the valve closed, can be released to the outlet 11b through a pilot valve 21 to allow the main valve to open. The pilot valve is actuated by a solenoid comprising a magnetic material core having a flange 44 at one end and embraced by a coil 34. A sleeve 44a of magnetic material enclosing the coil extends from this flange to a point beyond the other end of the core. A disc-like armature 35 fast with the valve stem 21b is movable within the extended part of the sleeve 44a and is of greater thickness than the length of the extended portion. A spring 43 opens the pilot valve when the coil is de-energized. The armature may actuate a switch 60 controlling external equipment such as water heaters. The pilot valve may also be closed manually by a rotatable knob 46 and cam 49. The pilot valve has a resilient sealing member 21a and the stem thereof is sealed by a member 41, as shown. The coil 34 is supplied through a rectifier, potted into a holder (33a), Figs. 7 to 9 (not shown). The sealing element 26 of the main valve member may be of synthetic resin or rubber and is retained by an annular portion 26a in groove 12a. Compression of this sealing element is limited by a stop face 12n on the member 12 engaging a seat. Clearance 25 may provide slow closing during a time interval. Two main valves controlled by a single pilot valve may be incorporated as a hot and cold water mixing valve, or several main valves may control the inter-mixture of reagents and buffer streams of chemical plant.
Patent GB-1108495-A (GB)
Title: Improvements in or relating to fluid logic devices
Inventor: FURLONG OWEN DESMOND ARTHUR CH
IPC: F15C1/04
Filed: 1965-11-02
Abstract: 1,108,495. Fluid switch. WESTLAND AIRCRAFT Ltd. Oct. 14, 1966 [Nov. 2, 1965], No.46329/65. Heading G3H. A fluid logic element comprises an input jet 7 and two outputs 8, 9 in which the proportion of the flow to the outputs is determined by the position of an element 3 of aerfoil shape. The jet is switched by the Coanda effect and the aerfoil may be adjusted in response to temperature, pressure, magnetism or electricity. As shown the element is adjusting the pressure in a chamber 1, such as an aircraft cabin, by the pressure acting on an evacuated bellows 2, the output 9 leading to the chamber and the output 8 to exhaust.
Patent GB-1394066-A (GB)
Title: Method of controlling the discharge of rod-like articles  from a container circuit breakers
IPC: A24C5/32
Filed: 1972-03-30
Abstract: 1394066 Outlet controlled hoppers HAUNIWERKE KORBER CO KG 30 March 1972 [2 April 1971] 46366/74 Divided out of 1394065 Heading B8S The description is the same as that in the parent Specification 1,394,065, but the claims are directed to an article supply container with a pressure pad to engage one end of the articles and control their discharge from the container.
Patent GB-1325632-A (GB)
Title: Optically active bicyclic monoketones and their preparation from racemic monocyclic compounds
IPC: C07J1/00
Filed: 1971-01-19
Abstract: 1325632 Optically active bicyclic ketones and steroid ketones F HOFFMANN-LA ROCHE & CO AG 19 Jan 1971 [21 Jan 1970] 46881/72 Divided out of 1325631 Headings C2C and C2U One mole equivalent of an optically active compound II  in which R<SP>1</SP> is 1-7C alkyl, 2-7C alkenyl, 2-5C alkynyl, aryl, aralkyl, acylamino, halo, 1-7C alkenoyloxy, or 2-8C alkoxycarbonyl; R<SP>2</SP> is H, 1-7C alkyl, aryl, aralkyl or -(CH 2 ) p R<SP>5</SP>; R<SP>5</SP> is halo, CN, OH, 1-7C alkoxy, mesyloxy, tosyloxy or -C(=R<SP>7</SP>)R<SP>6</SP>; R<SP>6</SP> is H, OH, 1-7C alkyl, 1-7C alkoxy, aryloxy or aryl-1-7C alkoxy; R<SP>7</SP> is oxo, alkylenedioxy or arylenedioxy (provided that when R<SP>6</SP> is other than H or 1-7C alkyl, R<SP>7</SP> is oxo); m is 1-4; n = 0 or 1-4 and p is 0, 1 or 2 and one mole equivalent of an optically active compound III  are prepared when two moles of a racemic mixture of a compound I are cyclized in the presence of an optically active agent in an aprotic solvent. 5-Oxo-4,5-seco steroids of Formula IV in which R<SP>10</SP> is H or 1-7C alkyl and U represents the remainder of the B, C and D rings may be cyclized in the same way to give optically active steroids V Dehydration of these 5-hydroxy steroids gives the corresponding #<SP>4</SP>-steroids. Named products of processes, which may also involve hydrolysis of a 17-tert.-butoxy group, are (-)-19-nor-testosterone and (-)-19-nor-retrotestosterone and the corresponding enantiomeric (+ )-steroids. (-) - 3a# - Hydroxy - 7a# - methyl - perhydroindan-5-one and (+)-3aα-hydroxy-7aα- methyl-perhydroindan-5-one are claimed perse.
Patent GB-1497279-A (GB)
Title: Jacquard knitting machines
IPC: D04B15/48
Filed: 1975-10-27
Abstract: 1497279 Automatic control; automatic control of yarn speed NATIONAL RESEARCH DEVELOPMENT CORP 27 Oct 1975 [31 Oct 1974] 47214/74 Headings G3N and G3R [Also in Division D1] An electromagnetically actuated knitting machine 18 controlled by signals from an information store e.g. of a computer 14 has a yarn measuring device 22 which measures the length of yarn used or its speed by placing, and subsequently detecting, electrostatic charges on the yarn, and a comparator 24 which compares the measured length or speed with an expected value. The difference may be used to actuate an alarm 28 or may be fed back to control the yarn feed of the knitting machine 18. References 10 and 12 represent an input data terminal to the computer 14 store via a visual display unit.
Patent GB-1070167-A (GB)
Title: Resonant transfer circuits and filters therefor
IPC: H04J3/10
Filed: 1964-11-20
Abstract: 1,070,167. Filters. STANDARD TELEPHONES & CABLES Ltd. Nov. 20, 1964 [Nov. 21, 1963], No. 47314/64. Heading H3U. A filter, subjected to a pulse train in the resonant transfer circuit of a time division multiplex system, has a resistance component of pulse impedance equal to twice the pass band resistanoe, at the high frequency side. The pass-band is centred at a harmonic of the pulse frequency. The pulse impedance of the filter is where P = pulse frequency p = frequency of a pulse component. A double side band filter is employed and may comprise several anti-resonant circuits in series. In the embodiment the pulse impedance of the filter is made purely resistive by neutralizing the reaction component with a two-terminal reactive network. The overal capacity of the circuit, at the output, is equal to half the pulse period divided by twice the input resistance of the double side band filter.
Patent GB-1418390-A (GB)
Title: Room shuttering
IPC: E04G11/02
Filed: 1973-10-11
Abstract: 1418390 Room shuttering for concrete buildings HUNNEBECK GmbH 11 Oct 1973 [13 Oct 1972] 47551/73 Heading E1S In shuttering of the kind comprising two side-wall sections, an end-wall section and a ceiling section, for casting a room in concrete, the side-wall sections 2, (3) are movable inwardly towards each other to facilitate stripping, and at least one portion 4a of the endwall section is pivotally mounted so as to be movable inwardly to provide clearance for the side-wall sections and remaining portions 4b, 4c of the end-wall section connected thereto to be moved towards each other. As shown, a central portion 4a is hinged at the top about a horizontal axis offset inwardly. Alternatively (Fig. 4, not shown), one or two portions may be hinged about a vertical axis and have an upper foldable part to clear the ceiling section. The shuttering has wheels, lifting jacks, internal struts, and lever-operated linkages for moving the side-wall sections inwardly and outwardly relative to the ceiling section.
Patent GB-962688-A (GB)
Title: Toy locomotives
IPC: A63H33/28
Filed: 1962-12-19
Abstract: 962,688. Toy locomotives. LOUIS MARX & CO. Ltd. Dec. 19, 1962 [Dec. 19, 1961], No. 47931/62. Heading A6S. A toy locomotive comprises wheels 12, 14, 16 and 18, an electric motor 46, a simulated boiler 20, a chimney 22, steam chests 26, and connecting rods 28 between the steam chests and the wheels 12, 14, together with means to generate vapour, discharge outlets 30 and passages 74 connecting the vapour generator and the outlets. The vapour generator comprises a heater coil 34 submerged in an oil pan or chamber 32 and connected to the electric supply. Chamber 32 has passages 70 and 66 leading respectively to the chimney stack 22 and a cylinder 60 having a piston 62 connected via an arm 64 to the rods 28. Thus vapour is generated when the current is switched on and discharged in puffs when the locomotive is in motion. The generator may be cast in two halves provided with flanges 72, 76 (see Fig. 5), to be riveted together. The lower half may form the locomotive chassis, and the flange 72 may be attached to the motor plates 84 at 82. The pilot wheels 16 are pivotally connected to the vapour generator at 114. Oil is introduced through the chimney stack 22. The body of the locomotive may be of plastics or metal.
Patent GB-1159677-A (GB)
Title: Pneumatic Tyres.
Inventor: HARRISON STANLEY RICHARD
IPC: B60C1/00
Filed: 1965-08-12
Abstract: 1,159,677. Pneumatic tyres. DUNLOP CO. Ltd. 1 Aug., 1966 [12 Aug., 1965], No. 48188/68. Divided out of 1,159,675. Heading B7C. [Also in Division B5] A fabricless pneumatic cycle tyre comprises a pair of spaced beads and a shaped flexible composition extending from one bead to the other to form the sidewall and tread portions, said composition having a Young's modulus of at least 4'5x 102 pounds per square inch and an elongation of not more than 15% in length when subjected to a load of 100 pounds per square inch of sectional area at a temperature of 30‹ C. over a period of one month. The tyre may be made in one piece by injecting or transferring the composition into a mould. In another arrangement, the composition is applied in granular form to a mould to form a halftyre, and in yet another arrangement a sheet of oriented composition is cut into blanks which are fitted around a core and consolidated in a mould. Compositions having the physical properties referred to above, are described.