baber/WOPTO huggingface dataset:
Patent GB-1151667-A (GB)
Title: Pyrazoline Sulphonic Acid Esters
IPC: C07D231/54
Filed: 1967-12-22
Abstract: 1,151,667. Pyrazoline sulphonic acid esters. J. R. GEIGY A.G. 22 Dec., 1967 [23 Dec., 1966], No. 58431/67. Heading C2C. [Also in Divisions C3, C5 and D1] Novel pyrazoline sulphonic acid esters of the general Formula (I) where R 1  is hydrogen, alkyl (C 1 -C 4 ), fluorine, chlorine, or bromine, Ar is a carbocyclic aromatic or heterocyclic aromatic radical unsubstituted or substituted by fluorine, chlorine, bromine, alkyl (C 1 -C 4 ), or alkoxy (C 1 -C 4 ), or arylamido groups, R 2  is hydrogen or alkyl (C 1 -C 4 ) or an alkylene group (C 1 -C 4 ) linked in the o-position with Ar, R 3  is hydrogen, alkyl (C 1 -C 4 ), or an aryl radical unsubstituted or substituted by fluorine, chlorine, bromine, alkyl (C 1 -C 4 ), alkoxy (C 1 -C 4 ) or by arylamido groups, and Z represents the aliphatic, araliphatic, or cyoloaliphatic radical of an alcohol or an aliphatic radical of an alcohol containing a heterocyclic ring system are prepared by reacting a sulphonic acid halide of the general formula where X represents fluorine, chlorine, or bromine with an alcohol of the general Formula (III) Z-OH, preferably in the presence of catalysts, e.g. inorganic and organic bases, and preferably in an inert solvent or excess of the alcohol to be reacted or in excess tertiary nitrogen base. The products have brightening properties.
Patent GB-1487068-A (GB)
Title: Electric current responsive devices and measuring instruments
IPC: G01R29/00
Filed: 1973-12-18
Abstract: 1487068 Moving iron meters BECKETT & PARKER Ltd 17 Dec 1974 [18 Dec 1973] 58667/73 Heading G1U A current measuring device includes a magnetic liquid moved by a magnetic field produced by a current-carrying conductor against a restoring force constituted at least in part by gravity. The liquid comprises a stable colloidal suspension of ferro- or ferrimagnetic particles (< 100 Š) in an organic acid e.g. oleic acid. A container for the liquid 90, Fig. 7 comprises two sinuous tubes 82, 83 of flat crosssection, Fig. 8, and a high, thin cross-section elongate tube 81 joined 84 to form a closed loop 80. Adjacent the magnetic liquid is a coloured immiscible liquid 91 forming an indicator boundary 104, the rest of the loop 80 being filled with colourless hydraulic fluid. The loop is formed from two halves 93, 94, Fig. 8, one having the loop pattern etched (in metal) or moulded (in glass) thereon and the other forming a flat cover-plate. A permanent magnet 89 has polepieces 101 covering one sinuous tube 83 and an electromagnet 88, 99 has similar poles 100 covering the other tube 82. When no current flows in the coil 99, the magnet 83 attracts the magnetic liquid 90 to a rest position as shown, wherein the boundary of the indicator liquid is at zero on the scale 97 behind a longitudinal lens 95. As the current in coil 99 increases, the magnetic liquid moves into the second tube 82 thus moving the indicator 104 to measure the current. In a similar arrangement, Figs. 3-6 (not shown), the liquid is contained in a square loop, with the permanent and electromagnets arranged on adjacent sides. In another embodiment, Figs. 1-2 (not shown) the magnetic liquid is contained in a vertical U-tube, where gravity acts as the  restoring force, the electromagnet being on one arm of the U-tube.
Patent GB-1468828-A (GB)
Title: Apparatus and method for conveying a tyre tread and for changing the length of the tyre tread
IPC: B29D30/16
Filed: 1973-12-27
Abstract: 1468828 Supplying a tyre tread to a tyre building drum UNIROYAL Inc 27 Dec 1973 [22 Jan 1973] 59800/73 Heading B7C [Also in Division B8] Apparatus for supplying and applying a tyre tread to a building drum 107 includes means for stretching or reducing, if necessary, the tread to a predetermined length. A tread advanced by conveyer chains 11-13 engages a stop bar 22 which terminates the chain drive. The position of the trailing end of the tread is sensed by photo-cells 83, 84 which are offset longitudinally of frame 18 by a small distance, e.g. 1/16 inch. A beam 89 carrying the photocells can be manually adjusted to a desired position. Exposure of both or neither of the photo-cells to light from corresponding lamps 80, 81 results from the tread being respectively too short or too long. Such sensing results in a frame 45 carrying tread support bars 32-35 and 37-40 and plates 56, 56<SP>1</SP> being raised by cylinders 41-44 relative to the frame 18 to lift the tread from the chains and into clamping engagement with a bar 31 and rollers 64. Thus the bars 31 and 32-35 fixedly clamp one end of the tread and stretching or reduction of the tread length is effected by appropriate movement of the plates 56 by motor 59. The motor 59 rotates screwthreaded shaft 61 and thus moves plates 56 engaged with nuts 62 and 63 longitudinally of bar 58, the nut 63 which is approximately half way between the bar 31 and nut 62 is moved at approximately half the rate of the nut 62. Springs 64a between the plates 56 maintain the spacings between adjacent pairs of plates 56 equal. When only one photo-cell is energized the tread is of the required length and the motor 59 is stopped. Cylinders 41-44 are de-actuated to lower the frame 45 and cylinder 67 is operated to swing the bar 31 and rollers 64 about axes 65 until limit switch 68 is actuated. Cylinder 28 is then energized to pivot the bar 22 about shaft 16 to the broken line position of Fig. 3. Cylinder 87 is energized to pivot arm 82 carrying the lamps 80, 81 for the photo-cells away from its illustrated position about axis of rod 86. The drum 107 is moved into position and cylinder 72 is energized to pivot the frame 18 to the broken line position. The tread is then advanced by the chains 11-13 on to the drum. After application the cylinder 72 is de-energized and the frame returns to its initial position during which motion it is cushioned by shock absorbers 74. When the tread is of the correct length engagement of the stop bar 22 by the tread and sensing of the position of the trailing end result in the cylinder 28 being energized with the subsequent operation being as described above. The apparatus may be controlled automatically or manually.
Patent GB-1241458-A (GB)
Title: Substituted dinitroanilines and herbicides containing them
IPC: A01N41/10
Filed: 1968-12-17
Abstract: 1,241,458. Dinitroanilines. BADISCHE ANILIN- & SODA-FABRIK A.G. 17 Dec., 1968 [21 Dec., 1967], No. 59830/68. Heading C2C. [Also in Divisions A5 and C4] The invention comprises a dinitroaniline derivative of the formula wherein one of the radicals R<SP>1</SP> and R<SP>2</SP> represents N0 2  and the other represents CH 3 , CF 3  or CH 3 SO 2 ; R<SP>3</SP> represents a C 2 -C 4  alkenyl radical or C 1 -C 4  alkyl radical which is optionally substituted by one or more Cl atoms or CN groups, and R<SP>4</SP> represents a C 3  or C 4  alkynyl radical or a C 1 -C 4  alkyl radical which is substituted by at least one Cl atom or alkoxy, OH or CN group, with the proviso that when R<SP>3</SP> represents an unsubstituted C 1 -C 4  alkyl radical, R<SP>4</SP> may not be an alkoxyalkyl group. They may be obtained by reacting the appropriate dinitrochlorobenzene with the appropriate amine. Examples are given for the production of the compounds. They are useful as herbicides.
Patent GB-1371732-A (GB)
Title: Trans-8-chloro-2,6-dimethyl-6-octene-2,3-epoxide and process for producing the compound
IPC: C07D303/08
Filed: 1972-12-29
Abstract: 1371732 Trans - 8 - chloro - 2,6 - dimethyl- 6-octene-2,3-epoxide STAUFFER CHEMICAL CO 29 Dec 1972 [21 Jan 1972 (2)] 59978/72 Heading C2C The invention comprises trans-8-chloro-2,6- dimethyl-6-octene-2,6-epoxide. It may be prepared by reacting geranyl chloride with an epoxidizing agent, e.g. a compound of formula RCO 3 H in which R is hydrogen, methyl, phenyl or m-chlorophenyl.
Patent GB-1434714-A (GB)
Title: 3-amino-prop-1-enes methods for their preparation
Inventor: BARRETT PAUL A
IPC: C07F9/535
Filed: 1971-12-29
Abstract: 1434714 1,1 - Diaryl - 3 - amino - prop - 1- enes WELLCOME FOUNDATION Ltd 29 March 1973 [29 Dec 1971 23 Oct 1972 29 Dec 1972] 60315/71 48748/72 and 15169/73 Heading C2C Novel compounds (I) and their salts in which each of R<SP>1</SP> and R<SP>2</SP> is an optionally substituted biphenylyl, fluorenyl or phenyl group with the proviso that both R<SP>1</SP> and R<SP>2</SP> do not represent a substituted biphenylyl or substituted or unsubstituted phenyl group and that when one of R<SP>1</SP> and R<SP>2</SP> is a substituted biphenyl group the other is an optionally substituted phenyl group and R<SP>3</SP> and R<SP>4</SP> are hydrogen, C 1-4  alkyl or benzyl are prepared from a compound (V) R<SP>1</SP>R<SP>2</SP>C(Q)-CH(G)M by (1) (i) when Q and G represent a bond and (a) M is CN, CYNR<SP>3</SP>R<SP>4</SP> (where Y is O or S) CH 2 A (where A is NR<SP>3</SP>COR<SP>9</SP> or NR<SP>3</SP>COOR where R is C 1-4  alkyl and R<SP>9</SP> is hydrogen or C 1-3  alkyl) by selective reduction so that the R<SP>1</SP>R<SP>2</SP>C=C moiety is unreduced (b) M is CH 2 Z (in which Z is a leaving group preferably bromo or tosyloxy) by reaction with an amine HNR 3 R 4  (c) M is CH 2 NR 3 R 4  (in which one or both R 3  and R 4  are hydrogen) by mono- or dialkylation or (2) M is CH 2 NR<SP>3</SP>B (in which B is a protecting group) by removing the group B or (ii) when Q is a nucleophilic group preferably hydroxy, G is hydrogen and M is CH 2 NR 3 R 4  by eliminating a molecule of GQ from a molecule of compound (V), (2) reacting a phosphorane VI R<SP>6</SP>R<SP>7</SP>R<SP>8</SP>P=CH 2 -CH 2 NR<SP>3</SP>R<SP>4</SP> in which R 6 , R 7 , R 8  are alkyl or phenyl groups with a ketone R 1 R 2 CO or (3) a combination of method (1)(i)(c) with any other method defined above. In compounds I prepared R 1  is preferably a 4-biphenyl group and R 2  a phenyl group both optionally substituted by halogen or nitro groups or R 1  and R 2  are both 4-biphenyl groups; R 1  may also be 2-fluorenyl or 2-biphenyl; R 3  and R 4  are hydrogen and/or methyl. When R 1  and R 2  are different the cis and trans isomers may be isolated. Compounds (XX) in which R 10  is nitro, halogen or phenyl and R 11  is hydrogen or halogen are prepared by Friedal Crafts reaction between the appropriate biphenyl and a benzoyl chloride or between an appropriate benzene derivative and a biphenylyl carbonyl chloride and 2-p-chlorobenzoylfluorene is prepared by a Friedal-Crafts reaction between fluorene and p-chlorobenzoyl chloride. 3,3-Bis- (4 - biphenylyl) - prop - 2 - enyl tosylate is prepared by esterification of the corresponding alcohol. Compounds I are active against Trypansoma cruzi and form with a carrier a pharmaceutical composition which may be administered orally or parenterally.
Patent GB-1343603-A (GB)
Title: Development of electrostatic latent images
IPC: G03G15/08
Filed: 1970-12-21
Abstract: 1343603 Brushes XEROX CORP 21 Dec 1970 [30 Dec 1969] 60540/70 Heading A4K [Also in Division G2] A brush comprises short conductive fibres distributed among long insulating fibres whereby the insulating fibres can contact an image bearing surface to deposit toner thereon while the conductive fibres (optionally electrically biased) remain out of contact and act as a development electrode. Steel and rayon fibres are preferred. The brush is made by weaving a fabric with a pile comprising insulating fibres wound around conductive fibres, cutting the pile, and then allowing the insulating fibres to unwind so that they extend beyond the conducting fibres.
Patent GB-1237328-A (GB)
Title: Manufacture of soluble coffee
Inventor: MAHLMANN JAMES PATRICK
IPC: A23F5/32
Filed: 1969-12-15
Abstract: 1,237,328. Soluble coffee. GENERAL FOODS CORP. 15 Dec., 1969, No. 61082/69. Heading A2B.  A soluble coffee product is obtained by coating particles of frozen aqueous coffee extract with 5-85 wt per cent dried soluble coffee, and drying the coated particles. The frozen extract particles preferably have a size of 100-12 mesh U.S. standard sieve, and the dried soluble coffee a particle size less than 200 microns. The coated particles may be air, vacuum, or freezedried. The dried soluble coffee powder is preferably obtained by spray-drying.
Patent GB-1330880-A (GB)
Title: Method of duplicating magnetic tape
IPC: G11B5/86
Filed: 1970-12-29
Abstract: 1330880 Duplicating magnetic tapes FUJI PHOTO FILM CO Ltd 29 Dec 1970 [29 Dec 1969] 61591/70 Heading G5R A master tape 9 is wound on to a first copying reel 1 together with a first copying blank tape 10 and a transfer field is applied by a magnetic head 8; the duplicate tape 10 is then rewound on to a reel 3 while the master tape 9 is rewound on to a second copying reel 2 together with a second blank tape 11 for similar contact printing by means of a second magnetic transfer head 7.
Patent GB-1330329-A (GB)
Title: Repeater devices
IPC: G06G7/22
Filed: 1970-12-30
Abstract: 1330329 Automatic gain control networks SPERRY RAND CORP 30 Dec 1970 [2 Jan 1970] 61712/70 Heading G1N Quadrature signals from e.g. a flux gate device. are fed through an automatic gain control network to produce related quadrature signals with controlled amplitude to compensate for variations in strength of the earth's magnetic field. As shown Fig. 2, D.C. quadrature signals A sin # m , A cos # m  on leads 14, 15 modulate a carrier signal sin wt from source 20 and are fed across a resistor 32 and capacitor 33 and summed at junction 34 to give a signal C cos (wt-# m ). The amplitude C is compared with a reference potential at 17 to provide a voltage controlling the amplitude of the carrier signal, whereby the output quadrature signals on leads 21, 22 have amplitudes which are directly proportional to sin # m  and cos # m  and are compensated for variations in the constant A.
Patent GB-618959-A (GB)
Abstract: 618,959. Hand-knitting appliances. SEMONSEN, O. C. March 23, 1946, No. 9005. [Class 74(ii)] [Also in Group VII] A tubular or hollow pointed needle 32, for forming additional stitches on the edge of an unfinished knitted fabric as described in Specification 570,244, has a bead 34 at the delivery end and yarn tensioning means at the other end. The tensioning means may consist of a flexible shank 36, Fig. 1, secured to the tube 32 and having a forked portion 37 for engaging yarn passing through the tube to the orifice 33. Alternatively the needle has a side inlet and is provided with a handle 42 having fixed and movable yarn guiding eyelets 63, 491 respectively, the eyelet 49 being carried by a spring ring 45 that is rotatable in a groove 44 for yarn tensioning purposes. The orifice may be round, ovate, elliptical or otherwise shaped.
Patent GB-619262-A (GB)
IPC: F16L19/04
Abstract: 619,262. Pipe joints. YOUNG, T. R. Nov. 28, 1946, No. 35379. [Class 99 (i)] In a joint in which a flared, ductile metal pipe end 13 is clamped on a conical spigot 12, a groove 8 is provided in the coupling nut 5 between an internal conical surface 7 and the back end of the nut, and a split ring 19 in the groove is adapted to project therefrom, and expand therein, and engage the neck 16 of the pipe. The conicity of the surface 7 may be slightly less than that of the flared pipe end. A second split ring (not shown) may be housed in a groove at the wider end of the conical part 7.
Patent GB-681036-A (GB)
Abstract: 681,036. Calculating-apparatus. NATIONAL CASH REGISTER CO. June 22,1948 [Dec. 6, 1947], No. 10773/50. Divided out of 680,992. Drawings to Specification. Class 106 (i). A calculating-machine has a control member differentially settable to determine the timing of the engagement of the totalizer with the actuators and thus the kind of operation (adding, subtracting, &c.) performed, a first control key causing the setting of the control member in one way, a normally ineffective auxiliary member mounted on the control key being rendered effective, when a second control key is depressed concurrently with the first key, to cause the control member to take a different setting to cause a different kind of operation. All the descriptive matter is contained in Specification 680,992. Specifications 631,379 and 681,027 also are referred to.
Patent GB-2000461-A (GB)
Title: Device for exposing worn carbide tips in drill bits.
IPC: B23B51/10
Filed: 1978-06-26
Abstract: A device for exposing worn button pegs in drill bits comprising a milling head (1) with an axial recess (3) accommodating a centering pin (2) displaceable in the axial direction of the milling head. Said pin has an inner end (5) acted on by a compression spring means (4), and an outer end projecting from the milling head. The outer end (8) of the centering pin has a bowl-shaped recess (9) with a shape which is preferably hemispherical and corresponds to the shape of the button end of the carbide peg extending out of the drill bit. The button end of said peg is enclosed by the bowl-shaped recess when exposing the body portion of the peg. <IMAGE>
Patent GB-2003453-A (GB)
Title: Web transport roller back
IPC: G03D3/13
Filed: 1978-07-21
Abstract: A transport roller rack for automatic film developing machines, which employs gear driven rollers arranged in a staggered pattern, and spaced so closely together that the film follows nearly a straight path between the rollers. Each roller (18) has a driving gear at its end. Every other pair of adjacent rollers rotating in mutually opposite directions have these driving gears at the same given ends and in mesh with each other. The intervening pairs of adjacent rollers rotating in mutually opposite directions have their driving gears at the ends opposite the said given ends, and also in mesh with each other. Thus, alternate pairs of counter-rotating rollers are driven by corresponding pairs of roller driving gears but from opposite sides of the rack. Extending along the roller driving gears 94 at each side of the rack is a train of larger diameter power gears 92, meshing with each other in a staggered pattern. Selected ones of these power gears coaxially rotate roller driving gears in different meshing pairs of such gears.   Extending along these (intermediate) power gears 92 is a train of still larger diameter (main) power gears 90 which drive one another by meshing. Different ones of these main power gears coaxially rotate smaller gears, which in turn through meshing rotate the intermediate power gears positioned on the same side of the rack. <IMAGE>
Patent GB-2005334-A (GB)
Title: Roofing system
IPC: E04D1/34
Filed: 1978-09-20
Abstract: A roofing system comprises overlapping tiles 40 locked between pairs of parallel rails 10 by overlapping and interlocking engagement between flanges 50 on the tiles and flanges 16 on the rails, the tiles being maintained in position up the roof by supports 28 fixed to the rails, or to beams supporting the rails, and abutting against downwardly- directed flanges 48 on the tiles. The rails may be fastened to supporting sarking via holes 52, or to beams via downwardly-directed flanges. <IMAGE>
Patent GB-2030411-A (GB)
Title: Improvements in or relating to surface acoustic wave filters
IPC: H03H9/64
Filed: 1978-09-25
Abstract: In an In-Line Reflective Array Compression (ILRAC) filter having input and output acoustic surface wave transducers 1, 5 situated opposite respective dispersive reflective gratings 3, 4 with a multistrip coupler 2 between the transducers and gratings, amplitude weighting is achieved by shifting the reflective edges of one grating in relation to the reflective edges of the other. The coupler 2 allows the input wave (full lines in Fig. 1) to reach both the gratings and both reflected waves (dotted lines) to reach the transducer 5 where they are effectively summed. Fig. 3 shows finger groups 30, 31 of the respective gratings staggered by ???/4 for full cancellation of the output transducer 5. Groups 32, 33 are unstaggered for zero cancellation, and groups 34, 35 provide a desired characteristic by reduction of the lengths of successive reflecting fingers. <IMAGE>
Patent GB-2007875-A (GB)
Title: Valve system for positioning a load
IPC: F16K31/40
Filed: 1978-10-09
Abstract: A valve system for positioning a load 31 having a first two stage valve assembly 24, 26 operable for raising the load and a second two stage valve assembly 20, 22 for lowering the load. Each of the second stages has a poppet with a parabolic contour which is dimensioned with orifice parameters to provide substantially linear flow rate change for minimized shock when one of the second stage poppets closes and the other opens. In the raise assembly, the pilot stage outlet orifice has a cross-sectional area substantially larger than that of the inlet orifice so that the second stage poppet opens much more rapidly than the closing thereof thereby to minimize overshoot when the pilot stage is actuated to the open position. The load may be the header of an agricultural combine. <IMAGE>
Patent GB-2008857-A (GB)
Title: Ferroresonant transformers
IPC: G05F3/06
Filed: 1978-11-14
Abstract: A ferro-resonant transformer comprises at least first, second and third juxtaposed subcores C1, C2, C3, a primary winding L1 linking subcores C1 and C2, a resonant winding L2 linking subcores C2 and C3, a capacitor C and a choke L connected in series across the resonant winding, and a first output winding L3 linking subcores C2 and C3. The winding L3 may be a tapped portion of the winding L2, or may be separate (L3a). A second output winding L4 links the subcores C1, C2, and a third output winding L5 links the subcore C1. The subcores may be formed from stamped or wound strip, or ferrite, with air gaps AG. They may have different characteristics by virtue of different materials, different cross- sections or air-gap adjustment. Windings L1, L4 may be provided with electrostatic screens. <IMAGE>
Patent GB-2044947-A (GB)
Title: Mirrors
IPC: G02B7/182
Filed: 1979-01-31
Abstract: A mirror construction includes an elongate body 10 having an elongate arm pivotally connected thereto by a pivot axis 12, the arm including two sections in 11A and 11B, the arm section 11A being connected to the pivot 12 and the two arm sections 11A and 11B being pivoted together at the right hand end remote from the pivot 12. The arm section 11B carries a mirror 14 at its free end. The arm sections are retained in a storage position by means of a rotary latching member 54 which is also used to hold the arm in its extended position. Movement of the arm from its storage position to its extended position is accompanied by movement of the first section 11A in the same angular sense relative both to the elongate body 10 and the second section 11B. <IMAGE>
Patent GB-2019021-A (GB)
Title: Process for the Production of Dye Relief Images
IPC: G03C7/26
Filed: 1979-03-06
Abstract: Dye relief images are formed by information-wise exposure of a gelatin silver halide emulsion layer containing a colourless dye precursor, development of the exposed layer, treating the layer with an etch-bleach solution thereby optionally converting the dye precursor into a dye, removing the gelatin in the exposed portion and converting unaffected dye precursor into a dye. When the dye precursor is a leuco dye it is converted into a dye by oxidation either in the oxidative etch-bleach or in a separate step. When it is a colour coupler it is reacted with oxidized primary amine to form a dye during development or after the etch-bleaching. The emulsion can comprise dots of blue-, green- and red-sensitive emulsions having associated therewith yellow-, magenta- and cyan-dye providing precursors.
Patent GB-2018051-A (GB)
Title: Connector for flat cable
IPC: H01R13/26
Filed: 1979-03-19
Abstract: An electrical connector for connecting a flat cable to a printed circuit board comprises an insulative block 12 carrying contacts 6 and having a slot 11 for receiving the cable by forcing bared conductors of the cable between the contact and a wall 21 of the block. Each contact includes a latching finger 13 for latching the contact in the block and a terminal portion 14 for insertion in a printed circuit board. <IMAGE>