baber/WOPTO huggingface dataset:
Patent GB-1394294-A (GB)
Title: Mounting for imparting arcuate motion to a scanning member  eg a mirror or a camera
IPC: G02B7/182
Filed: 1972-03-16
Abstract: 1394294 Optical spaces scanning apparatus SGA SWALES 19 April 1973 [16 March 1972 5 May 1972] 12285/72 and 21177/72 Heading G2J A space or shop scanning member, e.g. camera or mirror 1, Fig.1 has a mounting member 3, 4, by which it can be slidably secured on a curved stem 5 mounted for rotation about an axle in bearings 13 14, Fig. 2 by a motor 15. The limits of the oscillating movement of the stem are controlled by pÝns 20 the stem actuating a reversing micro-switch 21,22 connected to the motor. The mirror may be locked in position by a screw 19 acting on the edge of a disc 11. The stem can be U-shaped and connected to the protruding ends of the motor spindle, the motor having an eccentric for operating a reversing micro-switch.
Patent GB-1409673-A (GB)
Title: Vehicle bumper assembly
IPC: B60R19/26
Filed: 1973-03-14
Abstract: 1409673 Vehicle bumpers RAUFOSS AMMUNISJONSFABRIKKER AS 14 March 1973 [14 March 1972] 12325/73 Heading B7J A vehicle bumper comprises an elongate bumper bar 2 attached to a vehicle 1 by means of a pair of parallel shock-absorbers 3 bolted at their first ends to the bar by a flange 6 and an intermediate rubber or plastics plate 10, and at their other ends by hinge connections consisting of a bolt 7 extending through lugs 8 and 9 on the shock-absorber and a mounting bracket 14 respectively, the attachments 4 being more flexible to angular variations of the bumper bar in a horizontal plane than attachments 5. In the embodiment of Fig. 8 the first ends of the shockabsorbers are bolted directly to the bumper bar with an elastomeric connector 11 extending between each other end and mounting bracket 12.
Patent GB-906220-A (GB)
Title: Improvements in or relating to automatic slack adjusters for vehicle brakes, particularly brakes for railway cars
IPC: B61H15/00
Filed: 1961-04-06
Abstract: 906,220. Brake slack-adjusters. SVENSKA A.B. BROMSREGULATOR. April 6, 1961 [April 14, 1960], No. 12395/61. Class 103 (1). The automatic brake slack-adjuster described with reference to Fig. 3 of Specification 421,759 is modified by making the rotatable member 42 of one piece of tube, and the flanged sleeve 50 being a sliding fit on this tube. The sleeve 50 is secured to the tube 42 by a pin 57 screwed into the tube and having a head held captive by a slot 56 in the sleeve under the action of a spring 54. The sleeve may be formed with lugs 58 to provide for manual adjustment.
Patent GB-1092886-A (GB)
Title: Preparation of a phenylalanine derivative
IPC: C07C/
Filed: 1965-03-24
Abstract: L - a  - Methyl - (3,4 - dihydroxyphenyl) alanine is prepared by (a) resolving a racemic a -halo-compound compound of the formula <FORM:1092886/C2/1> wherein X represents a chlorine or bromine atom and R1 and R2 represent hydrogen atoms or methyl groups, into the respective D- and L-halo-acids using known methods; and (b) bringing said D-a -halo acid into reactive contact with at least 2 moles of substantially pure ammonia until replacement of the halogen atom is substantially complete and/or (c) bringing the said L-a -halo acid into reactive contact with at least 2 moles of a solution of ammonia in a C1- 6 alkanol or in water until replacement of the halogen atom is substantially complete and, where R1 and R2 represent hydrogen atoms, either (d) evaporating the excess of ammonia present from the material thus obtained from (b) or (c) or a mixture thereof followed by the addition of the stoichiometric amount of dilute mineral acid to form L - a  - methyl - (3,4 - dihydroxyphenyl)alanine; or (e) acidifying the material obtained from (b) or (c) or a mixture thereof with a dilute mineral acid to form an L-a -methyl-(3,4-dihydroxyphenyl)alanine salt and, if desired, admixing said salt with an C2- 6 alkylene oxide or an inorgani base in an inert solvent to produce L-a -methyl - (3,4 - dihydroxyphenyl)alanine or, where R1 and R2 do not both represent hydrogen atoms; (f) acidifying the material obtained from (b) or (c) with a dilute mineral acid at form an acid addition salt thereof; and/or (g) contacting the product obtained from (b), (c) or (f) with a concentrated hydrohalic acid at elevated temperature to dealkylate and form the hydrohalic acid addition salt of L-a -methyl - (3,4 - dihydroxyphenyl)alanine; or (h) acylating the product from (b), (c) or (f) to form the acylated phenylalanine compound, admixing the latter with an aluminium halide, and treating the material thus obtained with a dilute mineral acid to form L-a -methyl-(3,4 - dihydroxyphenyl)alanine. acid addition salt and, if desired (i) admixing the said acid addition salts from (g) and (h) with a C2- 6 alkylene oxide or an inorganic base in an inert solvent to produce L - a  - methyl - (3,4 - dihydroxy-phenyl)alanine.
Patent GB-1175808-A (GB)
Title: Improvements in or relating to new Therapeutic Composition, new Coumarin Derivatives and their process of preparation
IPC: C07D311/16
Filed: 1968-03-15
Abstract: 1,175,808. Coumarin derivatives. LABORATOIRES LA ROCHE NAVARRON. 15 March, 1968 [24 Nov., 1967], No. 12757/68. Heading C2C. Compounds of the formula wherein R 1  and R 2  may be the same or different and each represent a hydrogen atom, an alkyl radical of 1-5 carbon atoms, or an alkoxy radical of 1-5 carbon atoms, and R is phenyl or α-naphthyl radical, or a phenyl or α-naphthyl radical substituted with at least one alkoxy group having 1-5 carbon atoms, and when R is an unsubstituted phenyl or α-naphthyl radical then one at least of the groups R 1  and R 2  is other than hydrogen, are prepared by reacting a substituted ethyl malonate of the formula with a substituted phenol of the formula wherein R, R 1  and R 2  being as already defined. The invention also comprises the compounds of the above formula (with the exception of already known 4-hydroxy-3-(ortho-methoxyphenyl)-coumarin) wherein R, R 1  and R 2  are as already defined, with the additional exception that one at least of the groups R 1  and R 2  should be other than hydrogen when R is an orthomethoxyphenyl radical. Pharmaceutical compositions containing the compounds of Formula I are administered orally associated with the usual vehicle and excipient as anticoagulants in carbiovascular conditions.
Patent GB-419146-A (GB)
Title: Improvements in and relating to means for regulating electric power transmission systems
IPC: H02P23/16
Filed: 1933-05-02
Abstract: 419,146. Supply systems. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) May 2, 1933, No. 12770. Convention date, May 2, 1932. [Class 38 (iv).] Where a prime mover driving an alternator is controlled by a standard clock b in conjunction with a clock e driven by the network current so that a differential gear g displaces the admission valve m to maintain constant frequency, an auxiliary differential gear n is provided whereby the connection between the two clocks may be adjusted either by hand or automatically in dependence on output so that the admission to the prime mover is changed. The output control may be effected from a coupling point on the network. The differential gears shown may be varied and the rod connection between the control lever h and the return lever k may be replaced by a remote control. According to the Specification as open to inspection under Sect. 91, the auxiliary differential may be controlled by a schedule regulator. This subject-matter does not appear in the Specification as accepted.
Patent GB-237872-A (GB)
Title: Manufacture of condensation products of the anthraquinone series
IPC: C09B49/12
Filed: 1925-05-15
Abstract: Aminoanthraquinone-acridone and -thioxanthone derivatives are obtained by condensing a 1 : 3 : 5-triazine derivative halogenated in the nucleus with a 4-aminoanthraquinone-41-halogen-2 : 1-thioxanthone or -acridone; the products may in some cases be simultaneously or subsequently condensed with other compounds; they dye cotton from the vat in violet, blue, brown, green, grey, &c. shades.  The following examples are given: (1) 1 mol. cyanuric chloride is condensed with 2 mols. 4-aminoanthraquinone-41-chloro-2 : 1-thioxanthone (if desired in the presence of diethylaniline) and the product further condensed with aniline; (2) 1 mol. 1 : 5-diaminoanthraquinone is condensed with 2 mols. cyanuric chloride, and the product condensed further with 1 mol. 4-aminoanthraquinone-41-chloro-2 : 1-thioxanthone and 1 mol. 1-aminoanthraquinone; (3) 1 mol. cyanuric chloride is condensed with 2 mols. 4-aminoanthraquinone-41-chloro-2 : 1-acridone in the presence or not of diethylaniline.  Dyestuffs are also specified from the following components: 1 mol. cyanuric chloride, 1 mol. 4-aminoanthraquinone - 41-chlor-2 : 1-thioxanthone, and 1 mol. 4-aminoanthraquinone-2 : 1-acridone or 1 mol. 1-aminoanthraquinone; 1 mol. 1 : 5- and 1 : 8-diaminoanthraquinone (mixture), 2 mols. cyanuric chloride, 1 mol. 4-aminoanthraquinone-41-chloro-2 : 1-thioxanthone, and 1 mol. 4-aminoanthraquinone-2 : 1-acridone; 1 mol. cyanuric chloride, 1 mol. 4-aminoanthraquinone-41-chloro-2 : 1-acridone, and 1 mol. aminoanthraquinone. 4-Aminoanthraquinone-41-halogen-2 : 1-thioxanthones and -acridones are obtained by condensing 1-halogen-4-amino- or 1-halogen-4-acidylaminoanthraquinone with a 2-amino- or 2-mercapto-4-halogenbenzoic acid and then effecting ring closure, if necessary after saponifying the acidyl group.
Patent GB-727650-A (GB)
Title: Process for printing and padding textiles
IPC: D06P1/44
Filed: 1951-05-30
Abstract: An aqueous emulsion for printing and padding textiles comprises a copolymer containing at least one vinyl monomer yielding a film-forming polymer if polymerized alone and less than 50 per cent by weight vinyl chloride, acrylonitrile or at least one other vinyl monomer acting as cross-linking agent, a thickener and a pigment. The monomer capable of yielding a film-forming polymer may be methyl methacrylate, butyl acrylate or styrene, and the cross-linking monomer may be butadiene, chlorobutadiene, ethylene glycol diacrylate, divinyl benzene or the diacrylic acid ester of 1,1,1-trimethylol propane.  The copolymer may also contain vinylidene chloride as third component.  The thickener may be tragacanth, an alkali metal alginate or an oil emulsion.  The emulsion may be prepared by stirring a polymer emulsion into a mixture of thickener and turpentine, which may also containin an emulsifier such as the acid dimethylamine salt of oleic acid or benzyl-o-hydroxy-diphenyl-polyglycolether and the pigment then added. The copolymers are preferably prepared in aqueous emulsion using a higher alkyl sulphonate as emulsifier, as catalyst a sodium salt of the sulphonic acids of C10-C18 paraffin hydrocarbons or potassium persulphate or hydrogen peroxide, with or without a reducing agent such as sodium hydrosulphite, and in the presence or absence of a modifying agent such as a higher aliphatic mercaptan, diisopropylxanthogen disulphide, carbon tetrachloride and chloroform.
Patent GB-233159-A (GB)
Title: Improvements in and relating to electric tube welding machines
IPC: B23K11/06
Filed: 1924-05-24
Abstract: 233,159. Schr÷der, E. May 24, 1924. Drawings to Specification. Alloys. - A liquid contact into which the spindles of the rollers of an electric tube welding machine dip may consist of an alloy solid at normal temperatures but liquid at the working temperature of the secondary of the transformer. An alloy may be used melting at 70-80‹ C. and consisting of 32 parts of lead, 13 parts of tin, 45 parts of bismuth, and 10 parts of cadmium, or an alloy melting at 65.5‹ C. and consisting of 24.9 parts of lead, 14.2 parts of tin, 50.1 parts of bismuth, and 10.8 parts of cadmium. Specification 214,130, [Class 83 (iv), Metals, Working], is referred to.
Patent GB-649053-A (GB)
Title: Improvements in or relating to electrical storage batteries
IPC: H01M4/73
Filed: 1948-05-10
Abstract: 649,053. Accumulators. ALLEN, M. May 10, 1948, No. 12831. [Class 53] An accumulator plate consists of a lead grid through the openings in which lead wires or ribbons are threaded to cover the whole surface of the plate which is then pasted in the usual way with lead oxide. Instead of lead an antimony lead alloy may be used for the grid and ribbons.
Patent GB-844670-A (GB)
Title: Improvements in or relating to clocks
IPC: G04C1/08
Filed: 1958-04-23
Abstract: 844,670. Clocks. McCANN, E. J., and MORRIS, R. G. April 21, 1959 [April 23, 1958], No. 12831/58. Class 139 In a weight driven clock, the weight a, in falling, acts on an endless chain c to drive the clock and after a predetermined interval is raised by the action of an electric motor which is located within and forms part of the weight.
Patent GB-962415-A (GB)
Title: Warming cupboards
Inventor: BOWKER DONALD
IPC: A47J39/00
Filed: 1962-04-04
Abstract: 962,415. Warming cupboards. JAMES STOTT & CO. (ENGINEERS) Ltd. April 3, 1963 [April 4, 1962], No. 12871/62. Heading F4W. A warming cupboard comprises a series of horizontal shelves 9 disposed in vertical succession and hot air fan means 10 at the base of the cupboard adapted to blow hot air into a region between the near edges of the shelves and the back of the cupboard. Between the back 3 and the false back 7 is disposed heat insulating material whilst on the front there are provided doors 8, an on-off switch 13 which controls together with a thermostat, the hot air fan means, and a grille 6 for the intake of air. Air is blown through a perforate guard 12 and behind the vertical baffle 11. In a modification air is drawn downwardly between the back and false back from an upper opening, the heat insulating material being omitted, and is blown, by the hot air fan means, upwardly in a channel-shaped duct whose open side faces forwards. Air circulation may be encouraged by adjustable deflectors secured to the inwardly-facing surfaces of the channel.
Patent GB-358036-A (GB)
Title: A receptacle in which to rear animal offspring
IPC: A01K1/035
Filed: 1930-04-26
Abstract: 358,036. Rearing-appliances. MAYERS, S., 64, Norman Road, Rusholme, Manchester. April 26, 1930, No. 12887. [Class 5 (ii).] A receptacle in which to rear kittens, puppies, and the like comprises a cover secured to the top of a circular, oval, or like shaped box, the cover being so secured as to hang in the form of a spherical or like segment to form a bed, straw or other packing being placed inside the box, below the cover. A flange c is provided round the top edge of a hoop a forming the side of the box, the cover d being secured in position by means of a cord e passing through a seam on the edge of the cover, the seam being interrupted at convenient points to expose the cord which is laced through hooks on the box, strained tight and secured by means of a cleat. The cover may also be held tight by means of a band near the top of the receptacle.
Patent GB-971849-A (GB)
Title: Undercarriage safeguard system
IPC: B64C25/30
Filed: 1963-04-01
Abstract: 971,849. Actuation of switches. A. P. HUCHALA. April 1, 1963, No. 12894/63. Heading H2B. [Also in Division B7] A switch actuated by passage of a cam in one direction only comprises a frame 41 pivoted at 42 and normally abutting a stop 40. When the cam 33 on rod 32 passes from right to left, Fig. 2b, member 34 is raised to make electrical contact with member 37. When the cam passes from left to right, Fig. 2d, the frame pivots away from stop 40 and the switch is not closed. When installed in an aircraft, member 34 is encased in rubber or spring loaded so that the switch is not operated by inertial forces.
Patent GB-726262-A (GB)
Title: Improvements in or relating to electric pulse reshaping circuits
IPC: H03K5/05
Filed: 1953-05-08
Abstract: 726,262. Pulse-shaping circuits. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. May 8, 1953 [May 10, 1952], No. 12934/53. Class 40 (6). In a pulse-reshaping circuit of the type in which a distorted input pulse and a synchronizing pulse are applied to a valve having a transformer in its output circuit the primary winding of which serves as an inductive load and from the secondary of which a reshaped output pulse and.a feedback voltage is taken, an inductive load of low impedance is used and the valve circuit is arranged to present a low effective internal resistance. In this way the load is given effectively a large time constant so that a flat top is obtained to the reshaped pulses. Fig. 1 shows a reshaping circuit in which the distorted input pulse 21 and a negative feedback pulse 7 are applied to a comparing circuit comprising germanium rectifiers 15, 16 so that the voltage at point 14 follows the more negative of the two voltages applied at terminals 12, 13. Valve 18 is normally conducting until a positive synchronizing pulse 20 is applied to its cathode via transformer 19 simultaneously with a distorted input pulse 21, the valve is then cut-off and valve 1 conducts to produce a negative output pulse 7 at terminal 6. Pulse 7 is also fed back to the comparing network 15, 16 so that valve 18 remains cut-off for the duration of the synchronizing pulse 20 even if the distorted input pulse 21 terminates. The amplitude of the pulse 7 is limited by the anode voltage swing of valve 18. The effective time constant of the inductive load is thus maintained long since although the load itself is of low impedance the effective internal resistance presented by the valve stage is also small. In a modification shown in Fig. 2 a single stage only is used the load impedance 2 is fed from the anode circuit of the valve 1 which is given a low effective internal'resistance by means of negative feedback from its anode to grid circuit via transformer winding 28 and rectifier 27. The circuit functions with positive distorted input pulses 21 from which positive reshaped output pulses 7 are obtained, the valve 1 being cut-off in the absence of the coincidence of a pulse at terminal 12 or 13 and a synchronizing pulse 31. The synchronizing pulses 31 may be applied to the cathode of valve 1.
Patent GB-225466-A (GB)
Title: Improvements in tin openers
IPC: B67B7/46
Filed: 1924-05-28
Abstract: 225,466. Stock, W. May 28, 1924. Opening by cutting.-An opener of the kind comprising a handle provided with an abutment for rolling along the edge of a tin and a member carrying a cutter blade pivotally mounted on the handle part, has the blade-carrying member so formed that the cutter can be fixed m two positions, namely the usual one in which the cutter is perpendicular to the plane of oscillation of the instrument, and also in a position at right angles theretc or parallel to the said plane. Fig. 1 shows the device employed in the usual manner to effect a cut in the top of a circular tin, and Fig. 4 shows the method of use in cutting off the top of a tin of rectangular shape, the cutter f having been transferred from the part of the pivoted member to the portion d<1>, Fig. 3, at right angles thereto along a slot i formed in both arms of the member. Recesses k are formed at the underside of the slot to take the head of the cutter blade in each position to prevent turning. In place of a continuous slot, separate holes may be provided for the cutter in the two positions.
Patent GB-161850-A (GB)
Title: Improved recoil buffer for field artillery and heavy ordnance
IPC: F41A25/02
Filed: 1920-05-12
Abstract: 161,850. Fairfax, H. W. Gabbett-. May 12, 1920. Recoil apparatus.-Relates to pneumatic recoil and run-out apparatus in which a differential piston working in an air cylinder has means for automatically transferring air from back to front and from front to back of the piston. According to the invention, one or more spring-controlled non- return valves transfer the air from back to front and a ball-valve transfers the air from front to back of the piston. In the form shown the piston A attached to the gun by a ball-jointed rod B recoils against the action of air under pressure admitted to the rear of a cylinder F through a valve V. During recoil, a non-return ball-valve Q remains closed whilst a sleeve-valve 0 is gradually opened against the action of a spring as the pressure rises to allow air to pass to the annular space formed at the front of the piston by a trunk R. When run-out begins, the valve O closes and the pressure in front of the piston rises until the valve Q opens to allow air to pass to the rear of the piston to restore the original conditions ready for the next shot. The excess pressure on the rear side of the piston is sufficient to run the gun out and keep it in the forward position at maximum elevation. To compensate for leakage, an atmospheric valve P opens during recoil, the air thus admitted being transferred to the rear of the piston during run-out, any excess of air escaping through a relief valve T. The piston-rod B passes through a floating bearing L but, when the piston is in the forward position, one or more leather or indiarubber washers X are pressed against the rod by a block W to form an additional seal which is relaxed as soon as the piston recoils.
Patent GB-288842-A (GB)
Title: Improvements in or relating to telescopic screw supporting stays for use with windscreens of automobiles and the like
IPC: B60J1/04
Filed: 1927-05-17
Abstract: 288,842. Bach, C. H. May 17, 1927. Stays.-A telescopic stay comprising a series series of screwed members 6, 7 for adjustably supporting a windscreen and like hinged member in an adjusted position is provided with bearing members 12 each adapted to embrace a telescopic portion and to be secured to its tubular member by means which cause the bearing to bind on to the periphery of the telescopic member and provide a firm bearing without looseness between these parts. Each of the bearing members 12 is in the form of a split metal ring having conical surfaces 12b, 12<a> which are adapted to engage with correspondingly-shaped faces formed in the end of the tubular member and in the interior of a cap 11 that embraces the ring and screws on to the outer surface of the tubular member. The outermost section 6 of the stay is pivotally connected to the windscreen, and the tubular member 8 forming the other end of the stay is rotatably mounted in a sleeve 9 that is swivelly mounted on pivots 13a of brackets 13 secured to the dashboard. The pivots 13<a> may be formed on the member 9.
Patent GB-337793-A (GB)
Title: Potential divider in particular for radio receiving apparatus
IPC: H04B15/00
Filed: 1929-04-29
Abstract: 337,793. Kor÷s, L. Oct. 12, 1928, [Convention date]. Supplying consuming devices. - A potential divider, which may be employed for supplying voltages to radio receiving apparatus, comprises a number of gloiv discharge tubes containing neon &c., connected in series or anode to anode and provided with tapping points at their intermediate connections. When a fluctuating source of potential is applied to the potential divider, an additional discharge tube may be employed to compensate for this fluctuation and may be coloured distinctively. The additional discharge. tube may be connected in series with the others, or it may be connected directly across the supply with a series resistance. Fig. 5 shows a combination of neon tubes a<1> - - a<4> with operating voltages shown thereon and having tapping' points b<1> - - b<5> supplying loads c<1> - - c<3>, the tube a' functioning as a compensating member where a fluctuating potential source is involved. Less negative grid bias potentials can be taken from the tube a<4> by connecting an ohmic resistance in parallel therewith. Fig. 6 shows the neon tubes mounted on a common plug base d the potentials obtainable between the various plugs b<1> - - b<5> being indicated on the base. The electrodes of two or more tubes may be arranged in a common evacuated container. Reference has been directed by the Comptroller to Specification 313,075.