baber/WOPTO huggingface dataset:
Patent GB-1443006-A (GB)
Title: Acrylate-functional polysiloxanes
IPC: C07F7/18
Filed: 1973-07-10
Abstract: 1443006 Acrylate-functional polysiloxanes SWS SILICONES CORP 10 July 1973 [10 July 1972] 32901/73 Headings C3T and C3S Polysiloxanes having the general formula wherein R<SP>1</SP> is hydrogen or a monovalent C 1 - C 12  hydrocarbon radical, R<SP>2</SP> is an unsubstituted, halogen-substituted or cyano-substituted monovalent C 1 -C 18  hydrocarbon radical, R<SP>3</SP> is a divalent C 1 -C 18  hydrocarbon radical or a radical of the formula where n is 1-18 and m is zero or an integer, R<SP>4</SP> is a radical of the formula R<SP>5</SP>O 0À5  or R<SP>2</SP> 3 SiO 0À5 , R<SP>5</SP> is hydrogen or a monovalent hydrocarbon radical, Z is R<SP>5</SP>, OR<SP>5</SP> or OSiR<SP>2</SP> 3 , each of a and b is 1-20,000, c is 0, 1-3, e is 0, 1 or 2 with the proviso that when c is zero, at least one Z radical is OR<SP>5</SP>, may be prepared by equilibrating a mixture of an acrylate functional silane of the formula or siloxane of the formula and an organopolysiloxane containing units of the formula -R<SP>2</SP> 2 SiO- preferably cyclic organopolysiloxanes, in the presence of a catalyst and an aprotic solvent. Preferred catalysts are lithium alkoxides, lithium alkyls, aryls, and alkenyls, LiH, LiAlH 4 , LiOH and lithium silanoate. Preferably 0À5-10% of the aprotic solvent has a Lewis base characteristic, the remainder of the solvent being an aprotic hydrocarbon. In Examples 1-6 polysiloxanes are prepared by equilibrating a mixture of hexamethylcyclotrisiloxane, or octamethylcyclotetrasiloxane, and 8-methacrylatopropyltrimethoxysilane using a benzene/ethylene glycol dimethylether solvent mixture or benzene alone and n-butyl-lithium as catalyst. In Example 7 polysiloxanes are prepared by first heating a γ-methacrylatopropyltrimethoxysilane (and additionally in Example 8 trimethylmethoxysilane) in the presence of methanol, water and LiOH, and then equilibrating the polysiloxane formed with hexamethylcyclotrisiloxane in a tetrahydrofuran/benzene solvent mixture. The acrylate functional silanes of the above formula may be prepared by (1) the addition of a compound of the formula CR 2 =CRCOOG with a compound of formula HSi(Z e )(OR<SP>1111</SP>) 3-e  where G is an unsaturated radical, in the presence of a Pt catalyst, or (2) by reacting a chloralkylsilane of formula with a tertiary amine salt of acrylic acid or a substituted acrylic acid.
Patent GB-1045750-A (GB)
Title: Improvements in lighting sets for vehicles
IPC: H02J7/24
Filed: 1963-08-21
Abstract: 1,045,750. Automatic voltage control. ROBERT BOSCH G.m.b.H. Aug. 21, 1963 [Aug. 28, 1962], No.33030/63. Heading G3R. [Also in Division H3] The rectified output voltage of an A.C. generator is regulated by controlling the conduction of controllable rectifiers in the field circuit of the generator in dependence upon output voltage variations. As shown, a three phase generator 10 charges a battery 17 over rectifiers 22, the current for the field winding 16 being derived from phases 11 and 12 over controllable rectifiers 21,20. The control electrodes of the rectifiers are connected over resistors 48, 49 to the secondary winding 43 of a feedback transformer 40 having primary and feedback windings 42, 44 associated with a transistor 30 the base of which is connected over a rectifier 34 to the top 33 of a voltage divider 32 bridging the output leads 18 and 19. One end of the feedback winding 44 is connected to the junction P between a resistor 35 and a Zener diode 36 connected across the leads 18, 19. The Zener diode operates in its breakdown region, and the arrangement is such that self-excited oscillations are produced by the feedback transformer 40 and the transistor 30 so long as the potential at the base of the transistor is lower than the potential at junction P. These oscillations are applied to the controllable rectifiers 20,21 which are thus rendered conductive, with every voltage half wave induced in the windings 11 and 12, to provide field current for the generator. When the output voltage reaches a predetermined value, the potential between base and emitter of transistor 30 becomes so small that the transistor cannot maintain the oscillations; the controllable rectifiers 20, 21 then cut off, and the field current falls to produce a drop in the output voltage until transistor 30 again conducts to repeat the cycle. Should the load current exceed a predetermined value, transistor 30 is rendered non- conductive by a signal derived over rectifier 54 from a current transformer 51, 52, whereby the circuit is protected against overloads.
Patent GB-812286-A (GB)
Title: Refrigerating means
IPC: F25D19/00
Filed: 1955-11-18
Abstract: 812,286. Refrigerators. CORHANIDIS, S. S. Nov. 18, 1955 [Dec. 27, 1954], No. 33077/55. Class 29 A refrigerated casing 6 has a loading door 26, in one vertical wall an air inlet 16 and an air outlet 17, a duct 24 leading from the inlet to a plenum chamber 23 beneath the floor of the casing, fan means 33 exterior to the casing withdrawing the air from the plenum chamber through the casing and the air outlet 17 and the air is cooled between the outlet and inlet to the casing by a refrigerator evaporator 34. The fan and refrigerating machine are contained in a housing 28 which may be hung from the side of the casing 6 or may be wheeled. The air leaves the plenum chamber through a slot 25 extending the width of the casing.
Patent GB-923425-A (GB)
Title: Improvements relating to motor vehicles
IPC: B60N2/32
Filed: 1961-09-15
Abstract: 923,425. Vehicle bodies; seat arrangements. DAIMLER-BENZ A.G. Sept. 15, 1961 [Sept. 16, 1960], No. 33242/61. Classes 103(2) and 108(1). The driver's seat 2 and a double seat 3 are mounted on a floor plate 13 having side extensions 18 provided with rollers 19 which engage in vertical runways 20 so that by rotation of the shaft 23 winches in the runways 20 are operated to lift the floor plate 13 to allow access to the engine 14. The seat backs fold forwardly to increase the vertical travel of the plate 13. When in its lowered position the plate 13 is secured by turnbuckles 16.
Patent GB-1112905-A (GB)
Title: Composite polyamide filaments
Inventor: KIMURA ISAO
IPC: D01F8/12
Filed: 1965-08-04
Abstract: Copolyamides for use with homopolyamides for making conjugate filaments (see Division B5) contain e -caproamide and/or hexamethylene adipamide units in the chain together with units containing ether or thioether groups.  The specification lists a large number of dicarboxylic acids, diamines and amino-acids, all containing ether or thio-ether groups, and dicarboxylic acids and diamines not containing ether or thio-ether groups which may be used in the copolymerization. In typical examples a salt of bis-(g -aminopropyl) ether or bis-(g -aminopropoxy) ethane and terephthalic acid was crystallized from hot aqueous solution by adding iso propyl alcohol.  10 grams of this salt was then copolymerized with 90 grams of e -caprolactam. Other compounds used in examples for the copolymers are 14 bis-(g -amino-propoxy) cyclohexane, adipic acid and caprolactam, bis - (o  - aminopentyl) ether, isophthalic acid and caprolactam, bis - (b  - carboxyethyl) ether, paraxylylenediamine and caprolactam, bis - (g  - aminopropyl) sulphide, terephthalic acid and caprolactam, and bis - (g  - aminopropyl) ether, 1 - 2 - bis - (p - carboxy - phenoxy) ethane and caprolactam.
Patent GB-1235926-A (GB)
Title: Improvements in or relating to methods and apparatus suitable for use in forming pellets
IPC: B30B9/04
Filed: 1968-07-12
Abstract: 1,235,926. Pelletizing machine. USM CORP. 12 July, 1968 [13 July, 1967], No. 33398/68. Heading B5A. A rotary table pelletizing machine of the multiple die-opposed plunger type, wherein suction is applied to the dies at the feed station so that the dies may be filled with a slurry containing nitrocellulose fibres from a circulating supply. The top and bottom plungers 20, 22, Fig. 2, are actuated by cams and pressure rollers 40, 48. The slurry is stirred in a storage vat and is circulated by a pump through a feed head 84 through supply and return lines. The dies at the feeding station and at least one die in advance of the feeding station are connected to a source of vacuum via bores 96, 98, Fig. 6. The dies then pass through a trimming station wherein the excess material is removed by a jet of water, the water being recirculated and the excess nitrocellulose precipitated therefrom. The faces of the opposed plungers are shaped to give a pellet D Fig. 7. After ejection of the pellet by the lower plunger the pellet is raised by a blast of air and moved by a water jet into a wire mesh container or conveyer.
Patent GB-1513548-A (GB)
Title: Rise and fall mechanism for a seat
IPC: B60N2/16
Filed: 1975-05-22
Abstract: 1513548 Adjustable vehicle seats T I COX Ltd 22 May 1975 [29 July 1974] 33412/74 Heading A4J Each side of a vehicle seat comprises front and rear pivoted links 13, 14 connected between the seat frame 11 and the seat base 12 and moveable to allow height adjustment of the seat frame on rotation of a screw threaded shaft 22 extending through a pivotal connection with a pair of crank arms 24 welded to a shaft extending between the front links 13 and in threaded connection with a nut 25 pivotally carried by a pair of crank arms 26 welded to a shaft extending between the rear links 14. The pivotal connections 18 between the rear links and the seat base may be adjustable to permit adjustment of the rake of the seat frame relative to the base. This adjustment is effected by an assembly comprising a transverse tube 31 pivotally mounted on the base and having a pair of outer arms 33 carrying the connections 18. A second arm 34 is pivotally connected to one end of a forked adjusting arm 36 carrying a pin 45 moveable in a straight slot 46 in a fixed support plate 47 and in an arcuate slot in a cam plate 49. The cam plate is welded to a transverse shaft 51 connected to an operating handle and rotatable in a bearing in the support plate 47 to cause movement of the outer arms and hence adjustment of the rake of the seat frame.
Patent GB-199054-A (GB)
Title: Improvements relating to the extraction of oils from fish
IPC: C11B1/02
Filed: 1921-12-13
Abstract: Oil is extracted from fresh fish by boiling the raw fish in an antiseptic solution and subjecting the product to pressure.  In an example, fresh fish such as sardines, herrings, cod, &c. are boiled for a few hours in a solution containing 1 lb. of boric acid in 100 gallons of water.  The oil is expressed, allowed to settle, and then filtered.  Reference has been directed by the Comptroller to Specifications 1152/74, 5286/79, 5787/82, 1469/83, 11505/88, and 9200*/94.
Patent GB-877694-A (GB)
Title: Improvements relating to protective devices for electrical equipment
Inventor: MILLER ALAN DAVID
IPC: H01T4/20
Filed: 1958-10-20
Abstract: 877,694. Protective devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 12, 1959 [Oct. 20, 1958], No. 33428/58. Class 38 (4). [Also in Group XXXVI] A spark-gap device for a lightning arrester or the like comprises indented disc electrodes 3 spaced apart by a dielectric member 5, having a permittivity variable with frequency, and if desired an electrically conductive member 6. The device may be assembled in series with a similar device in which the spacing member 7 is of constant permittivity. Alternatively, the assembly may comprise more than one of both types of device. The variable permittivity dielectric is of a substance whose permittivity decreases by about 30% over a frequency range of from 50 c.p.s. to 10<SP>6</SP> c.p.s. The thicknesses of the members 5, 7 are such that the interelectrode capacities of the spark-gaps 1, 2 are the same.
Patent GB-413557-A (GB)
Title: Improvements in or relating to wire-mesh baskets
IPC: B65D1/38
Filed: 1933-11-29
Abstract: 413,557. Wire baskets. MOND, A. L., 19, Southampton Buildings, Chancery Lane, London.-(Schmidt Drahtwerke Akt.-Ges., C. S.; Niederlahnstein - on - Rhine, Germany.) Nov. 29, 1933, No. 33451. [Class 133.] To afford an upper edge free from projections the body wires 2 of a wire mesh basket are looped around the rim 1 in the manner shown. The basket is preferably made from ribbed wire.
Patent GB-410423-A (GB)
Title: Improvements in and connected with tubular rivets
IPC: F16B19/10
Filed: 1933-11-30
Abstract: 410,423. Rivets. A. T. S. CO., Ltd., and WYLIE, H. N., 5, Clement's Inn, Strand, London. Nov. 30, 1933, No. 33559. Addition to 378,617, [Group VII]. [Class 89 (i).] A tubular rivet for use in the process described in the parent Specification has its point a thickened where it engages the mandrel, the thickening being directed inwardly from the walls of the rivet.
Patent GB-378733-A (GB)
Title: High frequency signalling systems
IPC: H03J3/06
Filed: 1931-12-03
Abstract: 378,733. Valve amplifying circuits, HAZELTINE CORPORATION, 15, Exchange Place, Jersey City, New Jersey, U.S.A.-(Assignees of Earledean, C. ; 3908, 213th Street, Bayside, New York, U.S.A.) Dec. 3, 1931, No. 33562. Convention date, Jan. 28. [Class 40 (v).] In a wireless signalling system in which variation in tuning varies the attenuation of the side band frequencies a control is provided: in the low-frequency amplifier to correct for such attenuation and operated with the tuning control. The Figure shows a resistance 5 in series with a condenser 7 arranged in shunt to a transformer secondary 18 adapted to be varied simultaneously with the tuning condensers 1 .. 4. The input volume control 6 is arranged to control both the grid bias of the amplifying valves and also the resistance in shunt to the aerial coil 13. The invention is also applicable to a wireless transmitter in which the oscillator modulator tuning control is ganged to the gainfrequency control element of the low-frequency amplifier, Fig. 7 (not shown).
Patent GB-804731-A (GB)
Title: A variable resistor
IPC: G08B21/00
Filed: 1954-11-22
Abstract: 804,731. Variable resistances. MONTAGA, J. D., and CHIDZEY, R. L. Nov. 15, 1955 [Nov. 22, 1954], No. 33802/54. Class 37. [Also in Group XXXVIII] A variable resistor comprises a tube of partially conducting material which contains a column of mercury, electrical connection being made to the tube at one end spaced apart from the mercury and to the mercury itself so that as the column of mercury is moved along the tube the resistance between the two terminals varies. In the Figure the tube 1 of U-form with the mercury 2 constitutes a manometer, the tube is of polyvinyl chloride loaded with conductive carbon black having a resistance of about 80 ohms per inch length of tube or alternatively the tube may be constructed of the conductive plastic known by the Trade Mark " Markite ". Connections are made to the tube at the ends 3, 4 and to the mercury at position 5 if required by passing a conductor into the mercury through the wall or one limb of the tube. Pressure applied to one limb of the U-tube causes variation in the ratio of the resistances between the mercury and connections 3, 4, thus causing an out-ofbalance of the Whetstone bridge of which these two resistances form an arm, the volt meter 9 deflecting accordingly. The mercury may be that of a thermometer (see Group XXXVIII), the circuit then indicating temperature changes.
Patent GB-1237568-A (GB)
Title: Improved process for the catalytic removal of hydrogen from chlorine
IPC: C01B7/00
Filed: 1968-07-16
Abstract: 1,237,568. Removing H 2  from Cl 2 . SOLVAY ET CIE. 16 July, 1968 [19 July, 1967], No. 33852/68. Heading C1A. H 2  is removed from Cl 2  by passing the gas' through active carbon granules maintained at 125-250‹ C., at least part of the heat liberated by the reaction of the H 2  with Cl 2  being used to preheat the gas by means of a heat transfer fluid. Preferably the gas to be treated is passed through a bed of carbon granules disposed below the reaction zone, and oil is circulated in vertical tubes between the two zones. The Cl 2  may be obtained by electrolysis in a mercury cell.
Patent GB-1485263-A (GB)
Title: Method for preparing crosslinkable polymers
IPC: C08F8/42
Filed: 1973-07-17
Abstract: 1485263 Cross-linkable vinyl chloride polymers DOW CORNING Ltd 15 July 1974 [17 July 1973] 33902/73 Heading C3P Cross-linkable polymers are obtained by reacting (i) polyvinyl chloride or a vinyl chloride copolymer containing at least 50 mole per cent vinyl chloride, with (ii) an organosilane of formula in which: R is an organic radical linked to silicon through an Si-C bond, said radical containing less than 20 carbon atoms and being composed of C, H, N and optionally O, and containing at least one amino or imino group; R<SP>1</SP> is a C 1-9  monovalent hydrocarbon radical; X is a C 1-6  alkoxy or alkoxyalkoxy radical, or an oxime radical having less than 14 carbon atoms; and n is 0 or 1. Typical organosilanes are The products are cross-linked by exposure to water in the presence of a silanol condensation catalyst, of which many are specified. In examples, cross-linking is effected by immersion in an aqueous emulsion containing dibutyltin dilaurate.
Patent GB-523348-A (GB)
Title: Improved means for driving high speed spindles
IPC: F16H7/02
Filed: 1938-12-05
Abstract: 523,348. Belt gearing. ATKINS, H. F. Dec. 5, 1938, No. 33930/37. [Class 80 (i)] Relates to means for driving a spindle of the kind in which an endless belt passes around three pulleys, one arranged on the spindle to be driven, another on an idle pulley and the other upon a driving pulley, the spindle pulley being intermediate the other two and the pulls upon it opposed, all three shafts being parallel and co-planar. According to the invention, the idle pulley 11 is larger in diameter than the spindle pulley 2 and the driving pulley 7 is larger in diameter and at a greater distance from the spindle pulley than the idle pulley whereby the area of contact of the belt portions 16, 17 and 19, 20 are substantially equal and result in a substantially pure torque. A single endless belt engages all three pulleys and commencing at 15, in a groove 8 of the pulley 7, stretch 16 goes to groove 3 of pulley 2, stretch 17 to groove 9 of pulley 7, stretch 18 to groove 12 in idle pulley 11, stretch 19 to groove 4 in pulley 2, stretch 20 to groove 13 in pulley 11, stretch 21 to groove 8 in pulley 7 and then back to starting point 15. Preferably the idle pulley shaft 10 is slightly adjustable for tensioning purposes.
Patent GB-1098097-A (GB)
Title: Screw-and-nut type positioning device
Inventor: SEARS RICHARD E
IPC: F16H25/20
Filed: 1966-07-28
Abstract: 1,098,097. Screw-and-nut gearing. BEAVER PRECISION PRODUCTS Inc. July 28, 1966, No. 33995/66. Heading F2Q. A screw-and-nut device comprises a screw 11 of uniformly twisted strip, and a nut formed of two or more part-cylindrical segments 18, 19 of low friction material such as P.T.F.E. urged together by springs 22 in circumferential grooves 30, the depths b, c of the slots 14 in the segments forming the screw-receiving passage being less than half the width a of the strip so that the opposed faces 20, 21 of the segments do not contact each other. The segments are housed in a sleeve 31 which is prevented from rotation relative to the segments by a radial pin 34. In a positioning device, the nut is connected to a part (15) to be moved by a strap (16) (Fig. 2, not shown) and the screw is rotated to cause axial movement of the nut.
Patent GB-1190747-A (GB)
Title: Method and Apparatus for forming a Bulge in a Tube
Inventor: CHARLES PAUL ANTHONY STUART
IPC: B21D26/02
Filed: 1966-07-29
Abstract: 1,190,747. Making pipe fittings. ROLLSROYCE Ltd. 23 May, 1967 [29 July, 1966], No. 34141/66. Headings B3A and B3Q. A method of forming a bulge in a tube 11 comprises placing the tube within separable die parts 15, 17, 18, 19 and subjecting it to an axial load while applying a pressurized fluid to the interior of the tube, pressurized fluid also being used to support the die against distortion. The fluid may be water or a flowable solid, or a solid liquefied by pressure, and the tube, e.g. of nickel alloy, may retain its original thickness, or the thickness may increase or decrease. In apparatus for carrying out the method, the die parts 15, 17, 18, 19 are rings subjected to endwise pressure by tapered packings 50, 51 as the two halves of a housing 12 for the die are bolted together. An arbor 41 passing through the tube 11 has a shoulder 46 sealing one end of the tube and a packing ring 56 sealing against part 19 at the other end. An hydraulic balancing chamber 31 between the parts 15, 17 for supporting the part 15 against distortion, is supplied, through passage 35, with the pressurizing fluid, which also flows through ducts 36, 37 to the annular space 40 between the arbor and the bore of the tube. After air has escaped, pressure is applied against the arbor 41 by a ram 43 to a value just below the yield point of the tube-material, and the pressure of the expanding fluid is increased to bulge the tube. The fluid pressure is further increased after the ram 43 has engaged the housing 12.
Patent GB-1086815-A (GB)
Title: Improvements in end- or shell-milling cutters
IPC: B23C5/04
Filed: 1965-08-10
Abstract: 1,086,815. Milling-cutters. H. KRUSE, [trading as WILLHELM FETTE PRAZISIONSWERKZEUGFABRIK]. Aug. 10, 1965 [Oct. 3, 1964], No. 34157/65. Heading B3K] An end mill or shell cutter comprises a single or multiple-start chip breaking groove of a depth decreasing towards the end face of the tool.
Patent GB-666397-A (GB)
Title: Improvements in wrapping machinery
Inventor: ROSE ALFRED GERMAN
IPC: B65B57/14
Filed: 1947-12-24
Abstract: 666,397. Packing. ROSE BROS. (GAINSBOROUGH), Ltd. Dec. 16, 1948. [Dec. 24, 1947] No. 34166/47 divided out of Complete Specification 665,611. Class 94(i). [Also in Groups XIX and XXX] In a machine for wrapping friable articles, e.g. ice-cream, in which the articles are fed by a conveyer towards a station at which they are transferred by a member to wrapping elements, there is provided a detecting device having a plurality of feeler members spaced apart within an area corresponding to the surface of the article and adapted to move into engagement with the surface of each article in turn, and controlling means under the influence of the feeler members adapted on detection of unevenness of the surface. to prevent the transfer of an article to the wrapping elements. In the construction shown, blocks of ice-cream are carried in pockets 41 of a conveyer chain 42. Five spring loaded feelers 57 arranged in 'quincunx formation are carried by a member 43 rigid with a slider 44 actuated by a link 48 and cam 53. Each feeler 57 has a respective tappet 59 (Fig. 4), which rests upon it and is freely pivoted on bearings 62 on the member 43. Each tappet has an abutment 68 each of which normally lies clear of a respective abutment 64 formed on a controlling member 66 which is movable by linkage 68, 69 under the action of a cam 73 in opposition to a spring 74. In operation, the movement of the member 66 under the action of the cam 73 is unimpeded, and it cyclically operates a micro-switch 88 in the circuit of a solenoid (not shown), which then operates to withdraw a stop 87. This permits clockwise movement of a twoarmed lever 79, 81 under the action of a spring 86 and cam 84. The arm 79 is coupled to a transfer member 76 which is thus moved to displace the article 11 from the pocket 41 to a platform 89 leading to the wrapping elements of the machine. The cam 53 is arranged so that the feelers are raised clear of the article before operation of the member 76. If any one of the feelers 57 (such as shown at a) moves further down than normal under the action of its spring, the respective abutment 63 moves into the path of the corresponding abutment 64 and prevents normal movement of the member 66. The article is thus not transferred, and is carried by the conveyer to a waste bin. The feelers may alternatively operate on the lower, or on both upper and lower surfaces of the article. The controlling means may be electrical or mechanical. and may be delayed in action until the article has moved to a transfer station. According to the Provisional Specification the tappets 59 may be spring- loaded into engagement with the feelers.