baber/WOPTO huggingface dataset:
Patent GB-472208-A (GB)
Title: Improvements relating to index books, files and the like
IPC: B42F17/34
Filed: 1936-11-23
Abstract: 472,208. Card indexes. MAGOWAN, F. W. (Bates Manufacturing Co.) Nov. 23, 1936, No. 32052. [Classes 16 and 146 (i)] In an index device of the type comprising a pile of superposed sheets which are alphabetically or otherwise indexed and adapted to be opened like a book at any desired sheet, and comprising means for selecting any desired point and separating the sheets at that point, the separating means is biassed to open position, is normally held in closed position and is adapted, when released, automatically to move to open position, thereby effecting the separation of the sheets at the desired point. Bolts and nuts 5, 6 passing through the fixed portion 31 of a hinged sheet metal cover 3, and through a metal clamping bar, secure the sheets 2 to a base 1. A spring 10 about the hinge pin biasses the cover 3 towards open position, but it is normally retained closed by engagement of a catch 24 with a latch 25 which is formed on the end of a bowed spring 26, secured at one end 27 to the base 1, and sliding at the other through a guide 29, provided with a stop 30. The opening movement of the cover is limited by a nose on the cover engaging a stop on the portion 3<1>. The sheets 2 are all formed with permanent hinge lines, which are successively stepped away from the hinge 7 of the cover from top to bottom of the stack. Successively larger recesses 12 from top to bottom of the stack are formed in one edge of the sheets and co-operate with a finger on a slider 14 which engages with and is guided by a flange 13 on the edge of the cover. The slider is provided with a handle 23 and, on top of the cover, with a pointer 17 co-operating with an index scale and a spring tongue detent 21 co-operating with a series of depressions 22 in the cover. When the cover is closed the slider may be moved along, being accommodated by a longitudinal recess in the base until it cooperates with the desired sheet 2, and then the cover is released by depressing the spring 26 and opens the stack at the desired index. The base 1 is recessed at 31 to facilitate removal and change of the sheets 2. In the Provisional Specification it is stated that the portion 3<1> is provided with lugs entering recesses in the base, that the portion 3 has a longitudinal channel in which the spring detent of the slider moves, and that the base may be made of pressed synthetic resin.
Patent GB-1059826-A (GB)
Title: Electric cable
IPC: H01B9/06
Filed: 1963-08-14
Abstract: 1,059,826. Cable terminations. SIMPLEX WIRE & CABLE CO. Aug. 14, 1963 [Aug. 15, 1962], No. 32142/63. Heading H2E. [Also in Division H1] The Specification describes an electric cable fitted to a pothead so that gas under pressure may be applied between the cable's sheath and an outer semi-conducting layer and to a passageway within an inner semi-conducting layer. As shown in Fig. 2 a pothead 20 comprising a bushing 22 and a wiping sleeve 23 accommodates the stripped end of a cable 10 so that the corrugated metal sheath 13 is held firmly in a wiped joint 24 and tho conductor 11 is gripped by a cable socket 26 having a terminal lug 28. A stress relief cone comprising a varnished cambric tape 25 is wrapped over a portion of the outer semi-conducting layer 19. After evacuating the pothead via a conduit 21, nitrogen gas under pressure is applied through the conduit to passageways within the inner semi-conducting layer 18 and between the sheath 13 and the outer semi-conducting layer 19.
Patent GB-851605-A (GB)
Title: Novel drawn polymers and process for the production thereof
IPC: D01F6/04
Filed: 1956-10-23
Abstract: A drawn polymer comprises a cold-drawn and preshrunk olefinic polymer having a drawn thickness within the range 0,1-100 mils, having not more than 5% shrinkage at up to 250 DEG F. and having a tensile strength of at least 30,000 p.s.i. at a temperature within 65 to 100 DEG F.  Specified polymers are those of ethylene, propylene, 1-butene, 1-pentane and 1-berene and their interpolymers prepared by the low-pressure processes using as catalyst either chromium oxide associated with at least one of the porous oxides silica, alumina, zirconia and thoria or a mixture of a compound of the formula Al R3, where R is hydrogen or a saturated aliphatic, cycloaliphatic or aromatic hydrocarbon radical, and a compound of titanium, zirconium, chromium or molybdenum, e.g. the halides or tetra-alkoxides and tetravalent titanium salts of organic carboxylic acids.  The drawn polymer may be in the form of a translucent or transparent filament or film and may be made by extruding or otherwise extending an olefin polymer having a density of at least 0,94 and a crystallinity of at least 70%, cold drawing this polymer at between room and softening temperature, and heating this cold-drawn polymer at below its softening point.  The extended polymer may be quenched, e.g. in a quench medium at 32-150 DEG F., before being cold-drawn, preferably at 100-260 DEG F. and especially while immersed in an inert fluid at 225-260 DEG F.  The cold-drawn polymer may be heated at above 160 DEG F., e.g. in boiling water for 5 to 30 minutes.  Specifications 790,195 and 804,641 are referred to.
Patent GB-937651-A (GB)
Title: Improvements in or relating to television equipment for ground aircraft trainers and the like
Inventor: HELLINGS GEOFFREY MOFFAT
IPC: G09B9/30
Filed: 1958-10-09
Abstract: 937,651. Television. GENERAL PRECISION SYSTEMS Ltd. Oct. 7, 1959 [Oct. 9, 1958], No. 32247/58. Class 40 (3). A panoramic scene is directed on to a vertically mounted television camera 11 (Fig. 1) via a rotating mirror 12 (or by means of a fixed spherical mirror, Fig. 4, not shown) and the signals generated by the camera are supplied to a projection-type picture reproducer 21 (Fig. 3) the picture on which is directed on to a cylindrical viewing screen 20 by means of a mirror 23 rotating synchronously with mirror 12. The scanning of the camera and picture reproducing tubes may be effected radially, a complete frame being scanned synchronously with the rotation of the mirrors. Alternatively, a conventional rectangular interlaced raster may be employed and the resulting cyclic variation in the orientation of the scene neutralized by including rotating " roof " prisms in the optical paths between the rotating mirrors and the camera and picture tubes (Figs. 5, 6 and 7, not shown). The inclination of the mirror 12 to the vertical should preferably be other than 45 degrees, a satisfactory arrangement being an angle (greater or less than 45 degrees) which causes the horizon " seen " by the mirror to trace a circle having a radius of about 2/3 that of the tube (Fig. 2, not shown). At the picture reproducing position the projector 21 is arranged above the head of an observer 19 and the inclination of the rotating mirror 23 is such as to bring the projected picture down to the observer's viewing level. The camera may be stationary or may be arranged to move with respect to the scene, which, e.g., may comprise a scale model terrain, in simulation of the manoeuvres of an aircraft or other vehicle. Since the angle " viewed " by the camera, i.e. 360 degrees, is about seven times that of conventional television cameras the bandwidth of the transmission circuit, which may be a radio or " closed-circuit " system, must be correspondingly increased to provide the same definition as conventional systems.
Patent GB-304425-A (GB)
Title: Automatic light cut off, for use in kinematograph apparatus
IPC: G03B21/18
Filed: 1927-12-01
Abstract: 304,425. Ogley, G. H. Dec. 1, 1927. Kinematograph apparatus. -A cut-off shutter F has a lug E resting on an arm A so as to support the shutter, the arm A being pivoted at J and having a roller C resting against the film above the gate. Breakage &c. of the film allows the shutter to tilt the arm and fall from it to cut off the light. An adjustable spring and a friction washer may be provided on the pivot J, and the whole apparatus may be carried by a bracket B. A spring L may support the shutter during film-threading.
Patent GB-860744-A (GB)
Title: Improvements in or relating to two-wheeled motor vehicles
Inventor: MALLABY DENNYS RAYMOND WHEATLE
IPC: B62M25/00
Filed: 1958-10-10
Abstract: 860,744. Controlling two-wheeled motor vehicles. LAMBRETTA CONCESSIONAIRES Ltd. Oct. 12, 1959 [Oct. 10, 1958], No. 32429/58. Class 79(5). A two-wheeled motor vehicle has duplicate control means situated at the rear of the driver's saddle and operable by a person seated on a pillion saddle so as to effect independent control over the vehicle clutch dis-engaging, braking and engine cut-out mechanisms. A _pair of standard handlebars are secured to the pillion seat mounting and carry a switch button to open circuit the magnets, a clutch lever connected by a cable to a clutch operating arm to which the main clutch lever is also connected and a brake lever connected by a cable to an extension welded to the brake operating arm.
Patent GB-1047547-A (GB)
Title: Heavy duty wear resistant machine element
IPC: C22C19/05
Filed: 1965-07-29
Abstract: Wear resistant elements such as valve and valve inserts, ball bearing balls and races, burnishing balls and rock drills are made from an alloy having the following percentage composition:- .Cr.25-32 .Co.13-20 .Fe.0-9 .V.1.25-3 .Mo.1.25-3 .Si.0.5-1.75 .C.1.75-3.5 .Ni.the remainder
Patent GB-162715-A (GB)
Title: Improvements in electric heaters
IPC: H05B3/00
Filed: 1919-12-29
Abstract: 162,715. Waterhouse, L. M., Simplex Conduits, Ltd., and McLoughlin, H. F. Dec. 29, 1919. Electric radiators.- A heater shown in elevation and sectional end elevation in Figs. 1 and 2 respectively comprises a longitudinal body part B, preferably of semicylindrical or like cross-secticn to form a reflector gripped by flanged end-plates A, drawn together by bolts C and nuts; a detachable perforated front plate D is secured to the endplates. The heating- element consists of a closely coiled wire F laid in a helical groove e<2> on a refractory insulator E mounted on the bolts C. The wire is straightened at the ends and wound over the plain cylindrical ends e<1> of the insulator over which terminals g<1> are then clamped. The terminals have extensions G which pass out of the casing through insulating rings H having peripheral grooves h<1> which are retained in position in end-slots in the casing B by garter springs h<2>. The end plates are provided with lugs a<2>, a<3> between which the front plate D is fitted at one end, the other end of the plate D, which is provided with notches d' to clear the side lugs, being screwed to the corresponding central lug.
Patent GB-682969-A (GB)
Title: Improvements relating to organo-polysiloxanes
IPC: C08G77/00
Filed: 1949-12-20
Abstract: Organo-polysiloxanes are made by reacting one or more alkyl, aryl or alkyl-aryl silanols in the form of monomers or polymers of low molecular weight with one or more alkyl, aryl or alkyl-aryl halogenosilanes, the ratio between the number of alkyl and/or aryl radicals and the number of silicon atoms in the silanol(s) and the silane(s) being between one and three.  The reaction may be effected at a temperature, e.g. of 120 DEG  C. or below, and in the presence or absence of solvents, such as toluene, ether and dioxane, and metal chloride catalysts.  The silanols may be used as solutions obtained by dissolving them in organic solvents immediately after their formation by hydrolysing the corresponding halogenosilanes.  In examples: (1) dimethyldichlorosilane is diluted with toluene and ether and refluxed with di-phenylsilane diol; (2) a mixture of dimethyldichloro-and mono-methyltrichloro-silanes is diluted with toluene and refluxed with a solution of diphenylsilane diol in toluene containing dioxane; (3) di-benzylsilane diol is used instead of the di-phenylsilane diol of example (2); (4) solid di - phenylsilanediol, dimethyldichloro- and monomethyltrichloro-silanes were reacted to produce a viscous resin, the reaction being completed by adding toluene and heating under reflux; (5) an ethereal solution of silanols obtained by hydrolysing a mixture of di-phenyldichloro- and monophenyltrichloro-silanes in solution in a mixture of toleuene and dioxane was refluxed with a mixture of dimethyl-chloro-and monomethyltrichloro-silanes.  Specification 657,704 is referred to.ALSO:In making organopolysiloxanes by reacting one or more alkyl, aryl or alkyl-aryl silanols with one or more alkyl, aryl or alkyl-aryl halogeno-silanes, intermediate compounds are formed, which in the case of the starting materials di-phenylsilane diol and dimethyl-dichlorosilane are <FORM:0682969/IV (b)/1>
Patent GB-168021-A (GB)
Title: Improvements relating to three-position electric relays
IPC: H01H51/10
Filed: 1920-11-18
Abstract: 168,021. Kendall, A. B. Aug. 18, 1920, [Convention date]. Electromagnetic switches; locking and unlocking.-A three-position relay carried by a locomotive is provided with separate electromagnetic locking means to hold the contact member in the central neutral position against vibration, release of the lock being effected by the current which operates the relay, and with gravity returning mechanism. As shown in Fig. 1, the wound armature carries a disc 9 notched at 10 and provided with a crank arm pivoted to a connecting- rod 17 extending to the contact arm 18 which carries contacts 19, 20 co-operating with fixed contacts 21, 22. Normally, the parts assume the position shown with the spring-mounted armature 12 engaging the disc and locking the contact arm. When current is supplied through the relay armature it passes also through the electromagnet 15 and raises the catch, subsequently rotating the armature and maintaining the contact as long as the relay is energized. In its rotation the armature raises, by means of a segmental projection 29 carried thereby a U. shaped weight 34 guided by a roller 37, and as soon as the current is cut off the weight restones the contact-arm to the neutral position. Adjustable stops 33 act in conjunction with the projection 30 to limit the movement.
Patent GB-629817-A (GB)
Title: Device for attaching a plough to a tractor consisting of a draw-member, a draw-bar in two parts and an adjustable plough beam
IPC: A01B15/12
Filed: 1947-12-12
Abstract: 629,817. Agricultural implements. BEGHEIJN, A. V. L. Dec. 12, 1947, No. 32744. Convention date, Oct. 12, 1938. '[Class 6(i)] [Also in Group XXXII] A device for coupling a tractor to a plough comprises a draw-member 5, which is arranged to embrace the tractor rearshaft housing, or an auxiliary shaft, having pivoted to it by pin 9 the two-part draw-bar 10, 11. The part 11 is adjustable on a longitudinal axis relatively to the part 10 by means of bolt 19 engaging sectorplates 16 and 17. The plough beam 20 can be adjusted on transverse horizontal axis relatively to the part 11 by means of the handle 28 on screwed spindle 24.
Patent GB-761637-A (GB)
Title: Lawn bowl polisher
IPC: A63B47/04
Filed: 1954-11-12
Abstract: 761,637. Rotary pads. ROOPE, P.W. Nov. 12, 1954 [Nov. 17, 1953], No. 32769/54. Class 19 Also in Group XV] Rotary pads are formed as concave rollers 1 covered with lambs wool or cylindrical rollers 2 covered with felt.
Patent GB-998040-A (GB)
Title: Electrostatographic films
IPC: G03G5/022
Filed: 1963-08-20
Abstract: 998,040. Electrophotographic processes. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 20, 1963 [Sept. 26,1962], No. 32804/63. Heading G2H. An electrostatographic film 10, Fig. 1, comprises an electrically conductive layer 13, a heat developable layer 13, and a film 14 of melting point lower than base 12. The base may be polyethylene terephthalate, while layer 13 may be aluminium or conductive glass. A charge pattern is transferred from a xerographic plate 16 to the film 10 and the latent electrostatic image is developed by infra-red lamp 20, Fig. 2, such that surface tension and electrostatic depress, the surface 10<SP>1</SP> as shown at 15 in the pattern of the image. A film 30, Fig. 3, has a coating 32 having an outer stratum 34 and an inner stratum 36 filled with gas bubbles, e.g., formed by exposure to ultra-violet light. The film may be polyvinylidene chloride containing a diazo compound, while the base layer may be polyethylene terpthalate. Upon heating after receiving a charge pattern, the bubbles collapse in the charged areas -due to electrostatic force and surface tension, thus rendering the coating clear at these areas, the background areas remaining opaque. In another emodiment, Fig. 4 (not shown) a coating 42 has one stratum 44 of crystallune wax of random structure and an outer stratum of the same material having a structure forming a smooth surface 48. In another embodiment, Fig. 5, a coating 52 has an outer stratum of resin film containing encapsulated dye former and an inner stratum 56 containing a material which can react with the dye former. Upon heating after receiving a charge pattern the dye former capsules collapse causing a reaction with the material of stratum 56, to produce areas of contrasting optical characteristics. Other embodiments include a layer of fusible resin 62, Fig. 6 (not shown), a thin layer of fusible resin 76, Fig. 7 (not shown), which melts on heating to deform outer layer 72, and a coating 82, Fig. 8 (not shown) having an inner stratum containing a dispersion of dielectric crystals which become oriented in the direction of an applied electrostatic field.
Patent GB-1064266-A (GB)
Title: Improvements relating to the production of chloroprene polymers
IPC: C08F36/18
Filed: 1964-08-12
Abstract: In a process for polymerizing chloroprene with or without a minor proportion of an ethylenically unsaturated compound in alkaline emulsion in the presence of sulphur and a catalyst and in which a plasticizer is added to the emulsion-containing chloroprene polymer, the polymerization is short stopped by adding 0.01 to 0.1% based on the total weight of the monomer(s) of 4,4-thio-(6-t-butyl-o-cresol). Specified emulsifying agents are the sodium, potassium, ammonium and other water-soluble salts of long chain or poly-nuclear carboxylic acids such as oleic, stearic and abietic acids and acids made by hydrogenation or disproportiontion of rosin acids; water-soluble sulphonates of long-chain or poly-nuclear hydrocarbons may also be used.  The amount of sulphur may be 0.25 to 2% of the monomer. Suitable catalysts are benzoyl peroxide, perbenzoic acid and sodium persulphate.  Tetra-substituted thiuram disulphides are suitable plasticizers preferably mixed with water-soluble disubstituted dithiocarbamates. Preferably, 0.3 to 0.6% of the disulphide and up to 0.65% of the dithiocarbamates are used while a small amount of an alkali sulphite may also be added or may replace all or part of the dithiocarbamates or part of the thiuram disulphides.
Patent GB-1194694-A (GB)
Title: Ultrasonic Liquid/Fluid Interface Locating Apparatus and Method
IPC: G01F23/28
Filed: 1967-07-18
Abstract: 1,194,694. Locating liquid/fluid interfaces. NATIONAL SONICS CORP. 18 July, 1967 [18 July, 1966], No. 32898/67. Headings H4D and H4J. The location of a liquid/fluid interface in a medium located in a vessel is determined by analysing the amplitude of an ultrasonic signal of at least 500 kHz received after transmission through the medium. In embodiments described, a transmitting and a receiving transducer are mounted inside or outside the vessel and are coupled to the output and input, respectively, of an amplifier to provide acoustic feedback. An oscillator, or background noise picked up by the receiving transducer, energizes the transmitting transducer. The amplifier gain is adjusted so that the loop gain is less than unity when the acoustic propagation path is via the liquid and greater than unity when via the fluid, or vice versa. The change in loop gain is sensed by a Schmitt trigger at the amplifier output. Indications of physical characteristics (e.g. composition, temperature, density, pressure) of the fluid may also be obtained, by comparing the amplifier gain required to give unity loop gain with charted values ascertained by independent physical or chemical analysis. Circuit details are given. Transducer details (Fig. 3) .-The transducers are piezoelectric wafers 36, 38 (comprising, e.g. barium titanate, lead zirconate, lead metaniobate) mounted in chambers 32, 34 of a housing 30 of metal, plastics, ceramic or glass, behind "windows" 42 of a plastic, ceramic or glass material which will not transmit the radial mode of the wafers and thus acoustically isolates the two transducers. Further isolation is provided by seating the wafers on rubber feet, by surrounding the transmitting wafer with lead or coupling it to the housing through a gold or silver foil, or by making the housing in two sections joined by a welded or threaded part providing a tortuous propagation path. The window thicknesses are preferably integral halfwavelengths.
Patent GB-1235853-A (GB)
Title: Synthesis of adamantyl compounds
Inventor: SZINAI STEPHEN SLOMO
IPC: C07D295/088
Filed: 1967-07-18
Abstract: 1,235,853. Adamantane derivatives. LILLY INDUSTRIES Ltd. 18 July, 1968 [18 July, 1967], No. 32914/67. Heading C2C. Adamantane derivatives of the general formula wherein R, R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are each a hydrogen atom or a C 1-4  alkyl group; n is 0 or an integer from 1 to 4; and X is a hydroxyl group or a group of the formula -NR<SP>4</SP>R<SP>5</SP>, in which R<SP>4</SP> and R<SP>5</SP> are each a hydrogen atom or a C 1-4  alkyl group or together represent -(CH 2 ) m -, in which m is an integer from 4 to 6, or -(CH 2 ) 2 O(CH 2 ) 2 -, and pharmaceutically acceptable acid addition salts thereof are prepared by reaction of a 1-halo-adamantane of the general formula wherein Hal is chlorine, bromine or iodine, with a hydroxy compound of the general formula HO.CHR<SP>1</SP>CH 2 ) n CXR<SP>2</SP>R<SP>3</SP>, in the presence of a base, followed optionally by salification. Adamantane derivatives of the first general formula above wherein X is a group of the formula -NR<SP>4</SP>R<SP>5</SP>, n, R, R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are as defined above and R<SP>4</SP> and R<SP>5</SP> are each a C 1-4  alkyl group or together represent (CH 2 ) m , where m is an integer from 4 to 6 or -(CH 2 ) 2 O- (CH 2 ) 2 -, or, when n is an integer from 2 to 4, are each a hydrogen atom, and pharmaceutically acceptable acid addition salts thereof are novel. Pharmaceutical compositions having musclerelaxant and central nervous system depressant activity comprise, as active ingredient, a novel adamantane derivative as defined above, in association with a pharmaceutically acceptable carrier.
Patent GB-1298372-A (GB)
Title: Infra red radiator arrangement
IPC: H05B3/26
Filed: 1970-07-08
Abstract: 1298372 Automatic control of temperature BECKMAN INSTRUMENTS GmbH 8 July 1970 [16 July 1969] 33034/70 Heading G3R [Also in Division H5J An infra red radiator for a gas analyzer using radiation absorbtion techniques, comprises a ceramic plate 1 Fig.1 on one surface of which is vapour deposited a resistance layer 5 forming an electric heating element and on the opposite surface a platinum resistance thermometer 3. The thermometer 3 may be vapour deposited, cemented or sintered thereon. As shown Fig.3 the thermometer is connected to an amplifier 6 the temperature representative output of which is compared with a desired value in a control circuit 12 which produces an output corresponding to any deviation. The circuit 12 output adjusts a variable power supply source to increase or decrease the power to layer 5, whereby to maintain its temperature constant. The plate may be mounted in a housing having an infrared radiation transmitting window. Fig.2, (not shown).