baber/WOPTO huggingface dataset:
Patent GB-1091296-A (GB)
Title: Polymerisation process
Inventor: O'BRIEN STEPHEN
IPC: C07F7/28
Filed: 1965-06-01
Abstract: Polymers of substituted alkenes are made by contacting the alkene with an organo-metallic compound of a metal of Group IVa to VIa of the Mendeleeff Periodic Table of Elements which contains at least one p -allylic ligand.  Suitable compounds are tris-(p -allyl) chromium, tris-(p -methallyl) chromium, tris-(p -crotyl) chromium, titanium-(p -methallyl), dimolybdenum tetra-(p -allyl) and bis-(p -allyl) (acetylacetonato) chromium. The organo-metallic compound may be formed in situ.  The polymerization may be effected in bulk or the substituted alkene may be dissolved in an organic solvent, e.g. a hydrocarbon or ester.  Specified monomers are methyl methacrylate, chloroprene, and acrylonitrile and mixtures thereof with ethylene, propylene, butene-1, or butadiene.  Exemplified monomers are methyl methacrylate, chloroprene and acrylonitrile.  Stereostructures are given in examples.ALSO:The preparations of organo-metallic compounds of metals of Group IVA to VIA of the Mendeleeff Periodic Table of Elements which contain at least one p -allylic ligand are described. In particular: (1) tris-(p -allyl) chromium by reacting anhydrous CrCl3 with allyl magnesium chloride; (2) dimolybdenum tetra-(p -allyl) by reacting MoCl5 with allyl magnesium chloride; (3) tetrakis-(p -methallyl) titanium by reacting TiCl4 with methallyl magnesium chloride; (4) tris-(p -methallyl) chromium by reacting CrCl3 and methallyl magnesium chloride; and (5) bis-(p -allyl) (acetylacetonate) chromium by reacting tris-(p -allyl) chromium and tris-(acetylacetonate) chromium.
Patent GB-1072673-A (GB)
Title: Diacyl phloroglucinol derivatives
Inventor: BOWDEN KENNETH
IPC: C07C45/63
Filed: 1963-06-12
Abstract: The invention comprises compounds of the general formula <FORM:1072673/C2/1> wherein R1 is hydrogen or a lower alkyl group (containing up to 3 carbon atoms) or a halogen atom and R2 and R3, which may be the same or different, are (a) straight or branched chain saturated alkyl groups containing from 1 to 12 carbon atoms, preferably from 1 to 8 carbon atoms, or (b) phenyl alkyl groups wherein the alkyl chain contains from 1 to 3 carbon atoms, with the exception that when R1 is hydrogen or methyl, R2 and R3 are not both methyl, and the preparation thereof by reacting a phloroglucinol compound of the general formula <FORM:1072673/C2/2> with an acid or acid anhydride of the general formula R2COOH or (R2CO)2O respectively when R2 and R3 are the same, or successively with acids or acid anhydrides of the general formulae R2COOH and R3COOH or (R2CO)2O and (R3CO)O2 respectively when R2 and R3 are different, the reaction being effected in the presence of an esterification catalyst, for example boron trifluoride diethyl etherate, preferably in an inert organic solvent or, in the case where R1 is halogen in the first general formula above, by direct halogenation of a compound of general formula <FORM:1072673/C2/3> preferably in an inert organic solvent.  Pharmaceutical compositions having anti-bacterial, antifungal and antihelminthic action comprise a compound of the first general formula above, including the excepted compounds, and a non-toxic carrier, and are in conventional form for oral, topical or parenteral administration.
Patent GB-700223-A (GB)
Title: Device for introducing the lubricant into the mould for the continuous casting of metals, more particularly iron and steel
IPC: B22D11/07
Filed: 1951-10-09
Abstract: 700,223. Casting-machines; coating moulds. BOHLER & CO. AKT.-GES., GEB. Oct. 9, 1951 [Oct. 16, 1950], No. 23495/51. Class 83 (1) A device for introducing lubricant into a continuous-casting mould 1 consists of an annular groove 2, divided into sections by inserted pieces 3, in the upper end of the mould, the sections each being supplied with lubricant through a separate passage 5. The groove 2 may be covered by a plate 7 shaped to leave narrow discharge slots 8. The passages 5 may be fed with lubricant uniformly by a multiple pump and this may be coupled with the lowering gear for the casting.
Patent GB-1012050-A (GB)
Title: An output device for data-processing machines
IPC: G06F3/06
Filed: 1962-06-19
Abstract: 1,012,050. Calculating-machines. OLYMPIA WERKE A.G. June 19, 1962 [June 19, 1961], No. 23496/62. Addition to 918,707. Heading G4B. The parent Specification includes a pair of function slides which are coupled together so as to move in unison. The present invention uses one slide only. The functions of the machine are set out in Fig. 2 with corresponding positions of the slide 1 shown in the circuit of Fig. 1. For addition, subtraction or " do not add" a preliminary signal VS precedes the number which is followed by +, - or #, respectively. If VS is accompanied by - or + then a subtotal or total, respectively is indicated. The sign following the number is then a signal as to whether the answer is positive or negative. The conversion of keyed digits into electrical signals or perforations on tape is described in the parent Specification. In the present case a rotating switch first earths contact F1 to energize lead VS. If the function slide has been set to any of the last four functions one or other of leads 15 and 17 is also energized. When the rotating switch reaches contact 238, relay F energizes and holds. Subsequently the switch reaches contact F2 to transmit the signal on lead 15, 16 or 17, appropriate to the table of Fig. 2. Signals appropriate to the digital information are transmitted at contacts Z 1 -Z n . At the end of the machine cycle contact k opens. Specification 918,706 is referred to.
Patent GB-1423856-A (GB)
Title: Electric discharge machining circuit
IPC: B23H1/02
Filed: 1973-05-17
Abstract: 1423856 Electro-erosion M MIRONOFF 17 May 1973 [1 June 1972 25 Oct 1972] 23513/73 Heading B3V An electrical discharge machining circuit comprises a capacitor Cu for delivering erosion pulses to the machining gap, means for delivering a voltage pulse to the gap to pre-ignite a discharge channel in the gap, which means includes a voltage threshold means D2 and a transformer T whose primary winding passes a current only when the voltage across the threshold means D2 reaches a predetermined value. In one embodiment, the capacitor C u  is charged by a voltage source U o  and when the charging voltage U ch  reaches a voltage U z  a Zener diode DZ conducts causing a current pulse to be induced in the secondary of the transformer T at a voltage U p  higher than the charging voltage of the capacitor C u . A pre-ignition pulse is thus applied to the gap and enables the capacitor C u  to discharge through the gap. The polarity of the discharges are set by an inverter I n  and their duration controlled by an adjustable inductance Ld. The pre-ignition pulse energy is controlled by resistors R 1 , R 2 . In another embodiment (Figs. 6 and 7, not shown), another capacitor (C) is charged by the source U o  through a potentiometer (P) to a voltage (V) whereupon transistors (T r1 , T r2 ) are switched to cause the transformer (T i ) to produce the pre-ignition pulse. In another circuit described which does not fall within the scope of the claims, at least one capacitor (C pr ) (Fig. 4, not shown) is charged to a voltage (U<SP>1</SP> d ) within a time (t<SP>1</SP>ch) (Fig. 5, not shown) by a separate, higher voltage D.C. source (U<SP>1</SP>d), whereupon a pre-ignition pulse is released to the gap to enable the voltage (U ch ) across the capacitor C u  to be discharged into the gap.
Patent GB-1042271-A (GB)
Title: Gripping jaws for gripping sheet metal
IPC: B21D25/02
Filed: 1963-06-13
Abstract: 1,042,271. Stretch forming; drawing press. CYRIL BATH CO. June 13, 1963 [June 13, 1962], No. 23536/63. Headings B3E and B3Q. A stretch forming machine includes at least one gripping head having a pair of jaws to hold and stretch the sheet, the jaws having on respective gripping faces thereof respective sets of parallel gripping ridges, the lengths of which extend on one of the jaws in a direction which is oblique and to one side of the direction of tension applied to the gripped portion of the stock, and on the other of the jaws in a direction which is oblique to but extends to the other side of said direction of tension. Sheet S is stretched by means 11 over a former 5 and is then formed by a die 6, Fig. 1 (not shown). Each means 11 includes a gripping head 12 mounted on a carriage 13 running on rollers 16 and moved back by hydraulic pistons 22 rocking a link 17 connected to the carriage. The head 12 carries an upper jaw 30 and a lower jaw 31 opened and closed by a hydraulic piston 51 and rod 52 and wedge surfaces 36, 46 on the head. The gripping face of the upper jaw is formed with a series of parallel ridges or teeth 62, Fig. 12 (not shown), and that of the lower jaw with a series of parallel ridges or teeth 64. The ridges are inclined at an angle of 45 degrees to the direction of tension 63 with the ridges 62, 64 lying across one another. The ridges may be curvilinear. A side gripping head 70, Fig. 13 (not shown), has jaws 71, 72 with their ridges crossing.
Patent GB-1136206-A (GB)
Title: Centering and stabilizing means for a pipeline traversing machine
Inventor: PINGREE ROBERT JAMES
IPC: B28B19/00
Filed: 1967-05-20
Abstract: 1,136,206. Coating apparatus. AMERICAN PIPE & CONSTRUCTION CO. 20 May, 1967 No. 23544/67. Heading B2L. Guide means for centering a pipe traversing machine (e.g. a coating machine) within a pipe line comprises a bracket support 22 mounted on the machine, a plurality of said brackets 25 mounted for rocking movement at their inner ends on the support 22 in circumferentially spaced relation, the brackets extending rearwardly and radially outward of the machine, a wheel 26 at the free outer end of each bracket, and spring means 34 associated with said brackets and said support permitting but resisting rocking movement of the free ends of the brackets inwardly toward the longitudinal axis of the machine. The device may further include a trailing assembly 40 consisting of rods 41 between the support ring 22 and an annular mounting ring 48 which supports a plurality of guide springs 50 in circumferentially spaced relation. The ring 48 also serves to support a conduit section 49 having a coupling fitting 49', through which mortar or other pipe lining material is conveyed to the distributor head 14 which, in operation, is rotated by a motor 13.
Patent GB-437217-A (GB)
Title: Improvements in electric protective arrangements
IPC: H02H3/30
Filed: 1934-08-15
Abstract: 437,217. Protective cut-out systems. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and MATHEWS, P., 7, Elsee Road, Rugby. Aug. 15, 1934, No. 23555. [Class 38 (v)] In a circulating-current protective system, the relays, one at each end of the pilot circuit, are each connected between a pair of equipotential points of the pilot circuit, and means are provided for obtaining from the pilot circuit a compensating potential which is introduced into each relay connection in such wise as to the locate the two equipotential points of the relay connection adjacent one end of the pilot circuit. The circuit and voltage diagrams of a single-phase line 2 are shown in Fig. 1 (Prov.) and Fig. 1 (Comp.), respectively. The pilot circuit 3 has at each end a resistance 4 across which is connected the primary 5 of a transformer, the secondary 6 of which is in series with the relay 7 across the points A-B and A<1>-B<1>. In the voltage diagram, the voltage, as a percentage of the total voltage B, X and B<1>, X<1> of the current transformers 1, is represented by vertical distances, and the points A, B &c. of the circuit diagram have voltages as indicated at the corresponding points of the voltage diagram, Y, Y<1> representing the mid-points of the pilot conductors 3. The value of the resistances 4 and the turn-ratios of transformers 5, 6 are so chosen that the points C, C<1> lie on the equipotential line B, B<1>, so that normally the relays are inoperative, but on fault the currents in the relays are equal whatever the proportions in which the fault is fed from the feeder ends. The arrangement dispenses with the third pilot wire of Specification 279,638, [Class 38 (v)]. In the application to a teed feeder, Fig. 2 (not shown), the resistances 4 are proportional to the pilot resistances from the respective transformer locations to the junction point. In a three-phase circuit, the points C are arranged to be equipotential by giving the windings 5, 6 a suitable turn-ratio depending on the drop in resistances 4, Fig. 2 Comp. (not shown). To avoid zero phase-sequence magnetization in the transformers 1, they are either connected in delta or connected in star and provided with separate windings connected in delta, or the two methods may be combined, but at opposite ends, so as to accommodate phase-shift due to a three-phase transformer in the main circuit. In a three-phase feeder, transformers 1 may be replaced by the arrangement shown in Specification 304,357, [Class 38 (v)].
Patent GB-1471397-A (GB)
Title: Application of synthetic thermoplastic film to metal and coated  metal sheets
IPC: B32B7/06
Filed: 1976-05-28
Abstract: 1471397 Laminates BRITISH CELLOPHANE Ltd 28 May 1976 [30 May 1975 16 March 1976] 23628/75 and 10356/76 Heading B5N  A method of applying a protective strippable film of a synthetic thermoplastic material to at least one surface of a metal sheet or coated metal sheet which during fabrication is subjected to a heat treatment at a temperature above the melting point of the thermoplastic material comprises withdrawing the freshly fabricated metal sheet or coated metal sheet from the heat treatment zone, pressing the film against at least one surface of the metal sheet or coated metal sheet before it has cooled below the melting point of the thermoplastic material for a sufficient time to adhere the film thereto and quenching the resultant assembly. The metal may be steel, copper or aluminium and the optional coating thereon may be polyvinylidene fluoride, a silicon modified polyester, an alkyd resin, a polyvinyl chloride organo sol, a polyvinyl chloride plastisol, a silicon acrylic or an acrylic resin, specified thermoplastic materials for the film being high, medium or low density polyethylene optionally admixed with a minor proportion of an elastomer, e.g. a block copolymer of polystyrene - polyisobutadiene - polyisoprene or polystyrene - polyisoprene - polystyrene, an ethylene/vinyl acetate copolymer, calendered polyvinyl chloride or polypropylene, the film optionally including an ultra-violet light absorber. The method may be effected continuously, pressure being applied by calendering and quenching effected on a water bath, the film having been optionally pretreated by corona discharge.
Patent GB-477179-A (GB)
Title: Improvements in servo brake mechanism
IPC: B60T7/02
Filed: 1936-08-28
Abstract: 477,179. Brakes. AUTOMOTIVE PRODUCTS CO., Ltd., BROCK. D. T., and GATES, G. R. G. Aug. 28, 1936, No. 23658. Addition to 426,630. [Class 103 (i)] A modification of the brake system described in the parent Specification, comprises a hand-brake, a foot-brake means, for example a spring, tending to apply the hand-brake and means for holding the hand-brake released which means is disengaged to apply this brake when the operating means of the foot-brake exceeds a predetermined travel due, for example, to failure of the foot-brake, the hand-brake applying means being interposed in the connections by which this brake is normally applied by the hand lever. In Fig. 1, a frame comprising a pair of parallel plates 12 connected by transverse members 13, 14, 15, 32 pivotally mounted on a shaft 21 has toggle links 16, 18 disposed between the plates, link 16 being pivoted at 15 to the frame and link 18 being connected to the arm 20 of a bell-crank carried by the shaft 21. The other arm 22 of the bell-crank is connected by a rod c to brakes. A spring 24 is normally tensioned between the pin 13 and the pivot 17 of the toggle and is restrained by a detent 25 pivoted at 28 on the frame and engaging the pivot 17. The frame 12 is connected by a link 36 to the hand lever B. When the pedal D of the foot-brake reaches, for example, full application position a projection 35, thereon, operates the lever 34 to disengage the detent 25 by a cable 30 thus permitting the spring 24 to spread the toggle, the frame 12 remaining stationary and the arm 20 being moved upwardly to apply the brakes. The device is re-set by moving the hand lever upwardly thus turning the frame 12 about the shaft 21 and applying force to the lower toggle link 16 which causes the toggle to fold to the position shown and the detent to be re-engaged by the spring 40. If with the parts in the position shown the hand lever B is moved upwardly to apply the brakes the force is transmitted through the frame 12 and members 14 or 15 to the toggle and thence to the arms 20, 22. The pedal D may operate the brakes by a hydraulic master cylinder 10. In Fig. 4, the spring 49 abuts on one end of a casing 42 connected to the brakes at c and on a collar 48 on a rod 44 connected to the hand lever B and is normally held compressed by a detent 50 mounted on the casing. Movement of the pedal D to the predetermined position, releases the detent by a cable 30 causing the casing to move to the right to apply the brakes, the hand lever remaining stationary. The spring may be recompressed by moving the hand lever or by turning nut 47 on the rod 44 against the end of the casing. Application of the brakes by the spring is damped by a dashpot comprising a piston 55 on the rod 44 having a restricted passage and working in a chamber 56 containing liquid. The brakes can also be applied by movement of the hand lever acting through the normally stressed spring.
Patent GB-964156-A (GB)
Title: Improvements in or relating to distributors
Inventor: HARGREAVES DEREK BURTT
IPC: A01C15/16
Filed: 1962-06-20
Abstract: 964,156. Powder distributers. W. HARGREAVES & CO. Ltd. June 17, 1963 [June 20, 1962], No. 23665/62. Heading A1D. A distributer for powdered or granular material comprises a hopper 17 which feeds material to two resilient rollers 11, 14 one of which is movable to adjust the pressure at the nip formed between the two rollers. As shown the roller 14 is mounted in a U-shaped frame which is adjustably positioned by means of a screw 15 and nuts 16. The rollers are made of a foamed material such as foamed rubber and may be made up of a plurality of washer-like units.
Patent GB-1271617-A (GB)
Title: Improvements in and relating to contact greases
Inventor: SHIDA AKIRA INAMI SANKICHI
IPC: C10M169/00
Filed: 1970-05-15
Abstract: 1,271,617. Greases. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 15 May, 1970 [11 June, 1969], No. 23682/70. Heading C5F. Greases comprise, by weight, a major amount of a paraffinic mineral oil (i) 10-20% of a mixture of (a) 40-65% barium soap (b) 25-40% lithium soap and (c) 10-20% aluminium soap and (ii) 7-15% of a chlorinated aromatic compound. The chlorinated compound may be a chlorinated di- or tri-phenyl, pentachlorodiphenyl oxide or ketone, pentachlorophenyl benzoate or hexachlorodiphenyl methane. The grease may also contain an anti-oxidant (examples of amines and phenols given) and an anti-rust agent, e.g. sorbitan monooleate, a salt of dinonyl naphthalene sulphonate and α-(2- carboxyphenoxy) stearic acid.
Patent GB-238729-A (GB)
Title: Improvements in or relating to perforators adapted for use in platen printing machines and embossing machines
IPC: B41G7/00
Filed: 1924-10-07
Abstract: 238,729. Holroyd, R. Aug. 23, 1924, [Convention date]. Printing - surfaces; type-bars. - A device for use in association with perforating-rules 8 in platen printing or embossing machines, and adapted to engage the sheet of paper to be perforated, comprises a rule or strip 1, 2 adapted to be set in a forme parallel to the perforating - rule and having its bearing surface resiliently supported at a height not less than the height of the cutting edge of the rule. The device consists of two pieces 1, 2 forced apart by a spring 5, disconnection being prevented by the engagement of lugs 6, 7 on the two parts. The perforating- rule 8 is set up between two of the devices 1, 2, Fig. 7, which may be separated from the adjacent type 10 in the forme by brass or other metal plates 9. The surface of the part 1, being normally above the cutting edge of the perforator, engages and holds the sheet of paper before and during the perforating, and also prevents the inking-roller from contacting with the perforator. The part 1 is made of slightly less thickness and length than the part 2 so that it can move freelv in the forme. The devices may be made of standard lengths so that multiples may be used if required. The face of the part 1 may be formed so as to print a line of dashes.
Patent GB-517952-A (GB)
Title: Improvements in or relating to coal cutting machines
IPC: E21C31/00
Filed: 1938-08-11
Abstract: 517,952. Coal-cutting machines. MINING ENGINEERING CO., Ltd., and MOORE, M. S. Aug. 11, 1938, No. 23765. [Class 68 (i)] In a coal-cutting machine having an undercutting jib, and an overcutting jib carried by a vertically adjustable gear head, the overcutting jib is mounted on an eccentric pivot on a top frame carried by said gear head and adjustable angularly about the axial shaft thereof. A loader and a vertically-swinging shearing jib' may also be provided as in Specification 478,070. A worm wheel 11 drives a hollow shaft 12 which drives the cutter chain 14 of the undercutting jib 4; the jib 4 is rotatable about a pivot 16 and locked in adjusted position by a bolt 17. A shaft 8 is splined within the shaft 12 and also has sets of splines 8" adapted to engage corresponding splines in a tubular spindle 20 which, through gears 23, 24, drives the cutter chain 26 of the overcutting jib 5; this drive may be interrupted by rotating a quick-threaded screw 38 to raise the shaft 8. The jib 5 is rotatable about a pivot 22 and locked in adjusted position by a bolt 27. The head 7 carrying the overcutting jib is supported by a sleeve 28 threaded to an inner tubular standard 29 secured to a worm wheel 31. To raise or lower the head 7, a bolt 32 is passed through an extension 33 of the machine casing into a vertical groove in' sleeve 28 to lock the latter against rotation and worm wheel 31 is rotated; to rotate the head 7 the bolt 32 is dropped into holes 35, 36 to lock the worm wheel 31 to .an annulus 37 slidably keyed to sleeve 28 and the worm wheel is again rotated.
Patent GB-842594-A (GB)
Title: Improvements in or relating to receipt and like books
IPC: B42D5/02
Filed: 1956-08-02
Abstract: 842,594. Covers for receipt and like books. EVERSHED & CO. (BOW) Ltd., J., and EVERSHED, N. W. Aug. 1, 1957 [Aug. 2, 1956], No. 23872/56. Class 16. A receipt or like book 11, bound as with staples or by flexible glue along the spine, has a cover 12 with a stiff back flap and a front flap 13 hinged at 14 to the book and having further hinge means 15 spaced from the hinge 14 sufficiently to enable the front flap to be folded round the back of the book. As shown , the cover 12 is of stiff material and one additonal hinge 15 only is provided. Two additional hinges may be provided so that the front flap fits closely to the spine. In alternative versions, double cloth covers have thin board between divided by sections with no board to form the hinges. The back cover may be wider than the book and the additional part creased as at 16, 17 to form a flap 18 to be under the top receipt form 19.