baber/WOPTO huggingface dataset:
Patent GB-1412311-A (GB)
Title: Cephalosporin compounds and a process for the preparation  thereof
IPC: A23K20/195
Filed: 1973-02-26
Abstract: 1412311 α-Amino arylacetamidocephalosporin compounds BRISTOL-MYERS CO 26 Feb 1973 [25 Feb 1972 (2) 28 Feb 1972 16 March 1972 12 June 1972] 9346/73 Heading C2C Novel cephalosporin compounds having the D-configuration in the 7-side chain and having the general Formula (I) and base salts and acid addition salts thereof, wherein Ar is phenyl, 2-thienyl or 3-thienyl; R is hydrogen, pivaloyloxymethyl, acetoxymethyl, methoxymethyl, acetonyl or phenacyl; and Z is one of the following groups: are prepared by N-acylating a corresponding 7- amino cephalosporin compound or a salt or easily hydrolysed ester thereof, with an acid of Formula (III): having the D-configuration, wherein Ar is as defined above and B is an amino-protecting group, or with an N-acylating functional derivative of said acid, and then removing said blocking group and, if necessary, hydrolysing said ester group, and, if desired, either converting the product wherein R is H to the corresponding compound wherein R is one of the specified esterifying groups or vice versa. The acylating agent (III) may be the acid chloride hydrochloride, the protonation of the amino group serving as the protecting group B, or the mixed acid anhydride (e.g. with ethyl chloroformate) wherein the amino group is protected by enamine formation with a #- diketone (e.g. methyl acetoacetate). The starting 7-aminocephalosporin compounds are prepared by reacting either a 7-amino-3-acetoxymethyl cephalosporanic acid or ester thereof with an appropriate heterocyclic thiocarboxylic acid, or by corresponding reaction of a 7-acylamido-3-acetoxymethyl cephalosporanic acid or ester followed by an N-deacylation treatment to give the 7-amino analogue. The inventive cephalosporin compounds I and their non-toxic salts may be made up with a pharmaceutical diluent or carrier into pharmaceutical compositions having antibacterial activity. Examples are given for preparation of the following starting materials: 3-methylisoxazole- 5 - thiocarboxylic acid; 1 - methyl - 4 - carboxyl- 1,2,3 - triazole; 1 - methyl - 1,2,3 - triazole - 4- carbonyl chloride; 1-methyl-1,2,3-triazole-4-thiocarboxylic acid potassium salt; 1,2,3-thiadiazole- 5 - carboxylic acid; 1,2,3 - thiadiazole - 5 - carbonyl chloride; 1,2,3 - thiadiazole - 5 - thiocarboxylic acid potassium salt; isothiazole - 5- thiocarboxylic acid; isothiazole - 3 - carboxylic acid chloride; potassium isothiazole-3-thiocarboxylate, isothiazole - 4 - carboxylic acid chloride; potassium isothiazole - 4 - thiocarboxylate; and 1,2,5-thiadiazole-3-carboxylic thioacid.
Patent GB-1377286-A (GB)
Title: Dry baths
IPC: A61K8/97
Filed: 1972-02-29
Abstract: 1377286 Dry therapeutic bath H MATSUI 29 Feb 1972 9347/72 Heading A5B A composition which is suitable for use as a dry therapeutic bath and which is self-heating by fermentation comprises (a) 10-90 weight % of used coffee grounds from which the coffee essence has been extracted with water and (b) 10-90 weight % of a second vegetable constituent selected from defatted vegetables, bagasse, corn core, wood chips, pineapple stalk and aqueous extraction residues of vegetable seeds, the composition being such as ferments spontaneously when its water content is 30-50% and its pH is 4-6. The defatted vegetable may be defatted rice bran, cotton seed or soyabean. A yeast, e.g. Saccharomyces ellipsoidens, may be added to the bath. In use, the temperature of the bath may be maintained by adding further coffee grounds and vegetable material.
Patent GB-116572-A (GB)
Title: Improvements in Instruments for Tensioning and Severing Wire for Fencing and other purposes.
Inventor: HART CHARLES
IPC: F16G11/12
Filed: 1917-06-29
Abstract: 116,572. Hart, C. June 29, 1917. Cutters. - A device for severing fence wires, combined with a strainer, comprises a cranked lever 20 pivoted to a countersunk block 17 and having a rounded end provided with notches 22 which co-operate with similar notches 18 in the countersunk plate.
Patent GB-884973-A (GB)
Title: Improvements relating to nitrogen-containing condensation polymers
IPC: C08G73/08
Filed: 1960-03-16
Abstract: High molecular weight condensation polymers resistant to hydrolysis and having a melting point of at least 300 DEG  C. and an inherent viscosity of at least 0,2 comprise in the polymer chain recurring units of the formula <FORM:0884973/IV (a)/1> where R is a divalent organic radical or a covalent bond and can vary from one unit to the next.  The polymers are prepared by heating to a temperature above 200 DEG C. a polyhydrazide or copolyhydrazide containing the unit-RCONHNHCO-, and these are prepared by heating together dihydrazides and diacyl chlorides of dicarboxylic acids such as oxalic, malonic, succinic, glutaric, adipic, pimelic, suberic, azelaic and sebacic acids; 1,4-cyclohexanedicarboxylic acid, 1,3- and 1,4-naphthalene dicarboxylic acids; and m- and p-phenylene diacetic and dipropionic acids; and simple substituted derivatives thereof. The cyclization of the polyhydrazide may take place when the polymer is in the form of a film or fibre.  In the examples (1) isophthaloyldichloride is added to a solution of isophthaloyl dihydrazide in N-methylpyrrolidone containing lithium chloride, and the resultant polyhydrazide is heated at 283 DEG  C. for 8 hours at 1 mm. pressure to give the poly(1,3,4-oxadiazole); (2) the polyhydrazide of (1) is spun from a solution in dimethyl sulphoxide and the fibres are heated; (3) as in (2) but the polyhydrazide fibres are stretched up to 3 times in steam at 10-30 psig. before conversion to the polyoxadiazole; and (4) terephthaloyl dichloride is added to a solution of isophthaloyl dihydrazide in hexamethylphosphoramide, the resultant copolyhydrazide is spun from a dimethyl sulphoxide solution and the fibres are stretched before heating.  In the remaining examples the initial reactants used include adipyl dihydrazide, oxalyl dihydrazide and adipyl dichloride.  Specifications 654,273 and 654,288 are referred to.
Patent GB-1091986-A (GB)
Title: An improved belt conveyor
IPC: B65G15/02
Filed: 1966-03-03
Abstract: 1,091,986. Endless conveyers. AMMERAAL'S WEVERIJEN N.V. March 3, 1966 [March 5, 1965], No. 9389/66. Heading B8A. An endless conveyer belt adapted to pass around a curve arranged in the plane of the belt, is restrained from inward movement by nylon pins 10 arranged in holes (9) (Fig. 4, not shown) in strips 8 carried by the periphery of the belt. The pins 10 co-operate with nylon surfaces 14 carried by channel-shaped plates 12.
Patent GB-713994-A (GB)
Title: Improvements in or relating to rotary electrical switching apparatus
IPC: B60Q1/14
Filed: 1952-04-15
Abstract: 713,994. Mechanical switches, without quick action. BENDIX AVIATION CORPORATION. April 15, 1952 [April 20, 1951], No. 9452/52. Class 38(5) The switch comprises spaced parallel insulating walls having contact on the outer faces thereof and terminals on the adjacent inner faces, a rotor passing through the walls and carrying two conducting bridges which are pressed against the fixed contacts by a spring arranged between the rotor and one of the bridges. The rotor 70 slidingly carries contact bridges 73, 79 respectively cooperating with sets of contacts 76 ... 78, and 82 &c. Contacts 76 ... 78 are mounted on a partition 22 and contacts 82 &c. an a support 71 located on the opposite face thereof by projections 72. The bridges are biased by the spring 86 compressed between the bridge 79 and the end of the rotor. The rotor 70 has a recess receiving a D-shaped extension 63 of an actuating spindle 29 which carries an apertured disc 66 co-operating with a locating ball 69. The partition 22 also carries further sets of contacts 49 ... 54 in one plane, and 60 ... 62 on a raised portion 59 of the partition. These contacts co-operate with spring-loaded bridges 43, 55 carried by an insulating block 32 on a second spindle 28. The member 32 is located in its several positions by a spring 34 engaging peripheral recesses 33 therein, and rotation, other than between the Fig. 2 position and the next position clockwise, may be prevented by an arm 38 cooperating with a recess 40 in member 32, the arm 38 being carried by a.third spindle 30 and being urged against the edge of member 32 by a spring 39. The partition 22 is secured in a waterproof manner between two housing parts 20, 21, the spindles 28, 29, 30 passing in a waterproof manner through part 20. The fixed contacts are connected to each other and to the external circuits in such a way that, when the spindle 28 is in its " off " position, all of the circuits are open regardless of the position of spindle 29.
Patent GB-665160-A (GB)
Title: Improvements in and relating to apparatus for heating travelling threads, yarns, filaments and the like
IPC: D02J13/00
Filed: 1949-04-07
Abstract: 665,160. Automatic control systems. COURTAULDS, Ltd., and ATKINS, A. A. April 6, 1950 [April 7, 1949], No. 9492/49. Class 38 (iv). Variations in tension of a thread, yarn or filament travelling through an electricallyheated chamber cause movements of a spring- mounted guide, directing the thread through the chamber, which vary a resistance in a circuit controlling the saturating current of a saturable reactor in an A.C. circuit including the heater of the chamber, so that the temperature of the chamber is varied to maintain constant tension. In Fig. 1 a thread 1, e.g. a thermoplastic cellulose derivative to be stretched and shrunk as in Specification 633,187, [Group IV (a)], is passed continuously through a heating chamber 2 and over a guide-pulley 3 carried by a spring blade 4 clamped at 5. A contact 16 carried by blade 4 co-operates with a fixed contact 18 to repeatedly short-circuit a resistance 12 in series with the supply from a D.C. source 10 to a saturating winding 9 of a saturable reactor 8 in series with the supply from an A.C. source 7 to a heater 6 for chamber 2. Tension and temperature is thus maintained at a value determined by the setting of a rheostat 11. When no thread is running a contact 15 carried by the blade touches a fixed contact 17 to short-circuit a resistance 14 which is approximately half of resistance 12 so that heater 6 is maintained at approximately normal temperature in readiness. A lamp 19 indicates the condition of operation. In an alternative arrangement, Fig. 3 (not shown), saturating winding 9 is energized by a rectifier supplied from an A.C. source in series with resistance 12. Specification 465,780 also is referred to.
Patent GB-669849-A (GB)
Title: Improvements relating to the synchronising of an induction motor
Inventor: LEYTON ERIC MCPHAIL
IPC: H02P1/50
Filed: 1949-04-08
Abstract: 669,849. Control of A.C. motors. ELECTRIC & MUSICAL INDUSTRIES, Ltd. March 27, 1950. [April 8, 1949] No. 9554/49. Class 38 (iii). The speed of a polyphase induction motor is controlled by supplying the stator, Fig. 1, from a supply 4, 5, 6, and by modulating the stator supply frequency with a source 10, 11, at a control frequency, and supplying the rotor 3 with the resulting difference frequency. Three similar modulators 7, 8, 9, are provided, one for each phase of the supply. In each, a transformer 14, Fig. 2, connected across one phase of the stator supply, is connected to one of the rotor windings 15, through a reversely coupled pair of valves 12, 13. The grid/cathode circuits of these valves are connected to the control frequency supply by a transformer 16. In a modification, Fig. 3 (not shown), the pair of valves is replaced by two pairs fed from a centre tapped transformer.
Patent GB-681678-A (GB)
Title: Improvements in and relating to trim fasteners
IPC: F16B5/12
Filed: 1951-04-24
Abstract: 681,678. Stud and socket fastenings. BRIGGS MANUFACTURING CO. April 24, 1951 [June 2, 1950], No. 9578/51. Class 44 A stud fastener, e.g. for securing a moulding strip 10, Fig. 3, to the apertured panel 12 of a motor vehicle body comprises a length of spring wire bent to form a base 15 and a projecting stud 14, the base engaging the infurned flanges 11 of the strip and the stud fastening in the aperture 13 in the panel, a pad 16 of rubber or the like being combined with the fastener to prevent entry of water &c. through the aperture 13. As shown in Fig. 4, the fastener comprises parallel limbs 15a bent back at 15b and connected by a reverse bend 15c. The free ends are bent outwardly to form the stud 14 the limbs of which are outwardly bowed at 14a to snap through the aperture. The pad 16 is threaded over the limbs of the stud and when applied to the panel 12, is compressed between the base 15 and the panel to seal the aperture 13.
Patent GB-214983-A (GB)
Title: Process of nitrating regenerated cellulose films or paper
IPC: C08B5/02
Filed: 1924-04-16
Abstract: 214,983. Soc. Anon. Union Photographique Industrielle (Etablissements LumiÞre et Jougla RÚunis). April 23, 1923, [Convention date]. Cellulose nitrates.-Films of regenerated cellulose to be used for photographic purposes are rendered resistant to water by nitration by successive treatments with nitric acid and sulphuric acid. Paper may be nitrated in a similar manner and the product used in the manufacture of celluloid or collodions. The film p is passed first through one or more tanks b containing nitric acid, or the acid is showered on to both sides of the film from spray-pipes t; next it is treated in a similar manner with sulphuric acid in one or more tanks c; and the film is finally washed in tanks d, first with water, then with water rendered alkaline, and finally again with water. Any opalescence in the dried film is removed by passing the latter through the vapours of a solvent such as acetone. Thick pellicles are obtained by combining several thin films by means of a solvent such as acetone or amyl acetate to which may be added camphor or other plastifier.
Patent GB-261698-A (GB)
Title: Improvements in sound reproducing apparatus
IPC: H04R11/08
Filed: 1926-04-13
Abstract: 261.698. Hopkins Corporation, (Assignees of Hopkins, M. C.). Nov. 18, 1925, [Convention date]. Gramophone pick-ups; magnetic instruments. -A device for reproducing sound electrically, which can be attached to the tone-arm of a gramophone in place of the usual sound-box, comprises an electromagnetic current generator having an armature pivotally mounted within coils located between magnet poles, the pivot being sheathed in sound-insulating material, and cushioning stops being provided to bear against each end of the armature. In the device shown, a pair of flat magnets 7, 8 are connected by soft iron pole-pieces 9, 10 shaped as shown in Fig. 4, each piece being bolted between like poles of the magnets 7, 8. Similarly-wound coils 14, 15, connected in series, are enclosed within the magnets and pole-pieces, the ends of the coils leading to an insulating block 4 from which leads may be taken to an amplifier for operating a loud-speaker. An armature 11 of Norway iron is mounted as shown on a steel pivot 12 encased in a soft rubber tube 13, one end of the armature having a socket for a reproducing needle 18, which is gripped, to stiffen it, by a cap 19 screwed on to the armature. Plugs 20 of soft rubber are fitted into recesses at the ends of the pole-pieces, and are forced by screws 21 into engagement with both sides of each end of the armature, thus forming damping cushions, A handle 24 is pro. vided at one side of the reproducer, which is at. tachable to a tone-arm 2 by means of a friction collar 1.
Patent GB-116180-A (GB)
Title: Improvements in connection with Tractors for Agricultural Purposes.
Inventor: SWAN PETER SMITH
IPC: B62D49/06
Filed: 1917-07-06
Abstract: 116,180. Swan, P. S. July 6, 1917. Axle structures.-A tractor comprises a main frame A, carrying the engine B and change-speed gear D, and a bridge member A' pivoted to the frame A on vertical trunnions C'. The axle casing N is carried on horizontal trunnions B<1>. The driving-shaft L is provided with a universal joint Y in line with the vertical trunnions C'. The rear axle may be similarly mounted.
Patent GB-526921-A (GB)
Title: An improved method for the preparation of artificial cryolite
IPC: C01F7/54
Filed: 1939-03-29
Abstract: 526,921. Cryolite; silicon tetrafluoride. SILIKON GES. AUSARBEITUNG UND VERWERTUNG INDUSTRIELLER VERFAHREN, (formerly PHARMAKON GES.). March 29,1939, No. 9793. Convention date, March 30, 1938. [Classes 1 (ii) and 1 (iii)] Cryolite and silicon tetrafluoride are obtained by heating together, say to 450-500C., a mixture of aluminium fluoride and alkali metal silicofluoride, preferably in the absence of air or in the presence of an inert gas such as nitrogen. The silicon tetrafluoride may be converted into alkali metal silicofluoride for re-use in the process.
Patent GB-225767-A (GB)
Title: Improvements in or relating to machines for refining cocoa, chocolate and the like
IPC: B01F7/00
Filed: 1924-04-17
Abstract: 225,767. Hass Ges., H., (Assignees of Biirgel, H., and Hass, H.). Dec. 19, 1923, [Convention date]. Batch-mixers with circulating devices. - A machine for refining cocoa, chocolate &c. comprises a jacketed container 1 in which rotates a cylindrical shell 8 fitted internally with propeller blades 7 and with inclined blades 9 externally.
Patent GB-917382-A (GB)
Title: Improvements in or relating to electric circuit arrangements incorporating semiconductor controlled rectifiers
Inventor: DAVEY ANTHONY WALTER
IPC: H02M7/19
Filed: 1961-03-17
Abstract: 917,382. Controlled semi-conductor rectifier switching circuits. GENERAL ELECTRIC CO. Ltd. March 17, 1961, No. 9844/61. Class 40 (6). [Also in Group XXXV] A load 6 is supplied with H.W. rectified D.C. from an A.C. source 5 through a pair of series-connected semi-conductor controlled rectifiers 1, 2, which are fired simultaneously by steeply rising pulses from a transformer 7, Zener diodes 16, 17, or other voltage-sensitive breakdown devices, being connected across the gate-cathode circuits to limit the signal input. A voltage-dividing arrangement 18, 19, 20, 21, shares the applied voltage between the two rectifiers.
Patent GB-142775-A (GB)
Title: Improvements in automatic stapling and tacking machines
IPC: B25C5/16
Filed: 1919-10-10
Abstract: 142,775. Ward, A. F., and Dawson, F. Oct. 10, 1919. Stapling.-In an automatic stapling machine using a string of connected staples the lower cutting-plate 14, Fig. 1, is made #-shape, Fig. 3, the upper part corresponding in width to the strip-guide 7 and the lower parts engaging grooves 15, Fig. 2, in the main frame of the machine thus ensuring rigidity. Specification 141,895 is referred to.
Patent GB-541720-A (GB)
Title: Improvements in the manufacture of filters
IPC: B01D39/06
Filed: 1940-06-05
Abstract: 541,720. Filtering-media. BROWNE, R. J., and WALSH, C. L. June 5, 1940, No. 9861. [Class 46] A filtering-medium is prepared by impregnating base material with the gel of a vegetable colloid in alkaline solution and precipitating it as a gel in the base material. The colloid may be that extracted from agave, sisal and like plants as described in Specification 517,729. Any of the following may be used as base material:-sand, kieselguhr, filter aid, fibres, hair or cotton wool, silk combings or noils, paper, porous plates or compacted porous bodies. Acids or solutions of acid salts or neutral salts may be used as precipitants. Calcium hyperchlorite, sodium perborate and calcium chloride are mentioned in this connection. The permeability of.the medium may be varied by varying the concentrations of the gel and of the precipitant employed.
Patent GB-777512-A (GB)
Title: Self-wringing mop
IPC: A47L13/144
Filed: 1955-04-05
Abstract: 777,512. Wringer mops. WEGER, K. April 5, 1955 [April 21, 1954], No. 9974/55. Class 19 A wringer mop comprises a U-section metal member 2 attached to the lower end of a handle 1, to which is affixed a plate 4. The lower edge 5 of the plate 4 is curved over and forms a fixed jaw for clamping and wring- ing the mop 7. A roller 10 supported by. a frame 9, 11 which is pivoted to the member 2 forms the other clamping jaw: The mop 7 is supported from a wringing lever 16 by means of a wire support 19: the wring- ing'lever 16 normally lies within the U- section member 2 and is pulled up for wringing by means of a handle 17. When the lever 16 reaches the position shown in Figs. 1, 4 a pin 25, Fig. 4, engages a loose cam 24 which forces spring 23 out of engagement with a toothed sector 22 carried by lever 15. The lower end of lever 15 is linked with the frame 9, 11 carrying roller 10, so that releasing the lever 15 allows the roller 10 to move out of engagement with the mop 7. The mop can then be removed for replacement, the wire support 19 comprising, for this purpose, two separate wires riveted together (Fig. 5, not shown). Upon returning the wringinig lever 16 to normal position, the edge 21 engages the lever 15 and so returns it and the roller 10 to normal position. The sides of the plate 4 are flanged over and support a plate 8 enclosing the mop. In a modified construction, Fig. 6, the fixed plate 8 is replaced by a movable presser plate 29, the upper edge of which carries pins 30 which slide in a guide comprising the edges. of plate 4 and wires 31: the lower edge of the plate 29 is attached to the frame 9 by means of wire links 32.
Patent GB-630196-A (GB)
Title: Process for the production of calcium magnesium phosphates
IPC: C05B9/00
Filed: 1946-04-01
Abstract: In the production of a calcium magnesium phosphate from a solution obtained by treating crude calcium phosphate with hydrochloric or nitric acid, the unwanted calcium is first precipitated by adding magnesium sulphate, and the required salt is then precipitated by adding magnesium hydroxide, the quantities of these reagents being chosen according to whether the desired product is CaMg2(PO4)2, Ca2Mg(PO4)2, or CaMgH2(PO4)2. The magnesium sulphate may be a crude product such as Keiserit. The magnesium chloride or nitrate recovered from the mother liquor may be decomposed by heat to yield magnesium oxide and acid which is used to treat further quantities of crude phosphate. Specification 441,197 is referred to.
Patent HK-118896-A (HK)
Title: Safety anchorages for controlling pay-out of a safety line
Inventor: FEATHERS LEONARD JOHN CAE R
IPC: A62B35/04
Filed: 1996-07-04
Abstract: A fall-arrest safety anchorage has a safety line drum (10) and braking components assembled to a spine plate (1). The braking components comprise a rotatable brake component (2) and fixed brake components (1,7) one of which is constituted by the spine plate. The rotatable brake component (2) constitutes the driven member of a centrifugal clutch comprising coupling elements (17) which are mounted on the drum and become centrifuged into engagement with abutments (16) on the rotatable brake element if the unwinding speed of the drum exceeds a predetermined value. The rotation of the brake component (2) takes place against a frictional resistance imparted by friction rings (5,6) which are sandwiched under pressure between the rotatable brake component and the fixed brake components (1,7).