baber/WOPTO huggingface dataset:
Patent GB-950977-A (GB)
Title: Process for the manufacture of vinyl esters
IPC: C07C69/527
Filed: 1961-10-27
Abstract: Vinyl esters of carboxylic acids, are prepared by transesterifying a vinyl ester of a saturated aliphatic carboxylic acid (1-4 C atoms) with the carboxylic acid in an anhydrous medium in the presence of a platinum, palladium or rhodium salt as a catalyst. Propionic, chloropropionic, lauric, stearic, crotonic, oleic, linoleic, adipic, sebacic, benzoic, sorbic and e -phthalimidocapioic acids are referred to, and examples describe the preparation of vinyl esters using catalysts which may be dissolved in the anhydrous medium or applied to a support such as active carbon. Double chlorides of the platinum metals with lithium or sodium chloride, and palladium or rhodium acetate are used in examples.ALSO:Salts of platinum, palladium or rhodium, for example, double chlorides with lithium or sodium chloride, and palladium or rhodium acetates, are supported upon active carbon and used as catalysts for the preparation of vinyl esters of carboxylic acids.
Patent GB-1000406-A (GB)
Title: Heterocyclic guanidine compounds
Inventor: BAINES MICHAEL WILLIAM
IPC: C07D307/82
Filed: 1961-10-18
Abstract: The invention comprises pharmaceutically acceptable acid addition salts of guanidine derivatives of coumaran and indane, the corresponding free bases, which are unstable, having the formula <FORM:1000406/C2/1> wherein R1, R2, R3 and R4 are hydrogen, halogen or C1- 5 alkyl and X is O or CH2, except that where X is oxygen R1-R4 are not all hydrogen, and their preparation by reacting a salt of a 3-amino coumaran or indane with cyanamide in a solvent.  Preferred products include salts of 5-chloro- and 5-, 6- and 7-methyl-, 3-guanidino-coumaran and 1-indanylguanidine. Specified anions include the chloride, bromide, iodide, sulphate, perchlorate, nitrate, phosphate and organic anions.  The products may be obtained as d and l optical isomers and racemates.  The guanidine derivatives may also be prepared by reacting the corresponding amine with dicyandiamide, an O-alkylisourea or thiourea in the presence of a desulphurizing agent, such as lead monoxide or iodine.  Alternatively, in some cases a 3-halo-coumeran or indane may be reacted with guanidine.  5 - Chloro - and 7 - methyl - 3 - aminocoumarans are made by reducing the corresponding coumarone-oximes with sodium amalgam.ALSO:Pharmaceutical preparations having an adrenergic and nerve-blocking action, used for the treatment of hypertension, comprise the pharmaceutically acceptable acid addition salts of 3-guanidino-coumarans and indanes, whereof the free bases (which are unstable) have the formula <FORM:1000406/A5-A6/1> where R1, R2, R3 and R4 are hydrogen or halogen atoms or C1-5 alkyl groups and X is 0 or CH2, except that when X is oxygen R1-R4 are not all hydrogen (see Division C2), in association with a pharmaceutical carrier, preferably in a form suitable for oral or parenteral administration. Specified anions include the chloride, bromide, iodide, sulphate, perchlorate, nitrate, phosphate and organic anions.  The preparations may be in liquid or solid form such as solutions, suspensions, emulsions, powders, encapsulated powders, tablets or lozenges and may contain, in addition to conventional diluents and solvents, adhesives, disintegrating agents, lubricants, sweetening agents, thickeners, emulsifying agents, buffering agents and preservatives. Liquid preparations for parenteral administration may also contain bactericides or bacteriostatics such as phenol, cresol, chlorbutol, chlorocresol and benzyl alcohol and antioxidants such as sodium sulphite, sodium metabisulphite and ascorbic acid.
Patent GB-1059717-A (GB)
Title: Apparatus for producing detachable connections between individual webs of continuous sets of duplicate forms
Filed: 1965-09-10
Abstract: 1,059,717. Fastening manifold sheets together by punching; feeding webs. MASCHINENFABRIK GOEBEL G.m.b.H. Sept. 10, 1965 [Sept. 23, 1964], No. 38785/65. Headings B6A, B6B and B6P. In apparatus for producing detachable connections between individual webs of continuous sets of duplicate forms by punching interengaging tongues out of superjacent webs, the webs are passed over defecting rods or rollers 8, 9 and 16, 17, upstream and downstream of the punching unit 10, 11, respectively. The rods or rollers may be adjusted at right-angles to the path of the web to vary the individual web path lengths, so as to achieve correct registration. The pin wheels or rollers 14, 15 may be provided with a cam and recess 18 and 19, Fig. 3 (not shown), to force the tongues out of the plane of the webs. The pin-wheels or rollers may be replaced by pin-bands.
Patent GB-1281622-A (GB)
Title: Metal door main and wing frames
Inventor: WENIG HANS
IPC: E06B7/23
Filed: 1970-08-12
Abstract: 1281622 Metal door frames and doors STAHLWERKE SUDWESTFALEN AG 12 Aug 1970 [16 Aug 1969] 38812/70 Heading E1J A metal door jamb or wing frame member, e.g. of rolled steel sheet is of rectangular box cross-section having on one side, e.g. the wall side, a groove 5 of rectangular cross section and on the opposite side an external rib 6 bordering one side of an undercut groove 7 the other side of which is bordered by an outstanding rail or bar 9. Sealing strip of tubular form and made from synthetic material has a protuberance of suitable shape for fitting into the undercut groove 7. The adjacent frame member 3 of a wing may have a somewhat similar construction, with the confronting faces mirror images one of the other. As shown in Fig. 1 the wing frame member 3 is made up of two profiles and the jamb may be constructed in the same manner as the frame member 3 (Fig. 2). (Other modifications are shown in Figs. 3 and 4).
Patent GB-823830-A (GB)
Title: Improvements in or relating to electric signalling and computing systems
Inventor: DILLOW JOHN WARREN
IPC: G06G7/161
Filed: 1957-12-13
Abstract: 823,830. Electric analog calculating; energy metering. STANDARD TELEPHONES & CABLES Ltd. Dec. 13, 1957, No. 38841/57. Class 37. An electric analog device for deriving from two variable electric functions a variable relay impulse rate proportional to the quotient thereof, comprises a first capacitance chargeable by a current in proportion to a first function, a second capacitance chargeable by a voltage proportional to a second function, and relay means operative when such first capacitance has received a predetermined charge to generate an output pulse and to connect the second capacitance to the first capacitance whereby the charge on the latter is reduced by sharing, after which the relay releases to disconnect the second capacitance from the first and reconnect them for freedom to recharge. In a power generation metering network, direct voltages proportional to the total generated outputs of plural respective stations are produced by telemeters 1, 2, 3 and are connected over respective resistances Rc 1 , Rc 2 , Rc 3 , inversely proportional to the respective generation costs per unit at the stations, to pass a total current #i c  = ic 1  + ic 2  + ic 3  representing the total generating cost into a capacitance C 1  shunting amplifier A 1 , whose output is earthed over relay R/3. The telemeter voltages are also connected over respective resistances RL 1 , RL 2 , RL 3  which pass load currents iL 1 , iL 2 , iL 3  such that the total current #i 1  = iL 1  + iL 2  + iL 3  represents the total load, and is applied to resistive feedback amplifier A 2  to produce an output voltage V L , which charges capacitance C 2  over contacts R in normal position while current #ic charges capacitance C 1  to a predetermined level, after which relay R/3 operates to generate an output pulse and changeover contact R to correct capacitances C 1 , C 2  together so that the former is discharged to an extent dependent on the charge on the latter. The relay releases and the cycle is repeated; the output frequency being given by:- and representing the average cost of power per unit. The total output of the plural generators may be telemetrically displayed. Specification 629,254 is referred to.
Patent GB-1178094-A (GB)
Title: Roller Conveyor
IPC: B65G47/26
Filed: 1968-08-14
Abstract: 1,178,094. Clutch control. HANS VOM STEIN, OFFENE HANDELSGESELLSCHAFT. 14 Aug., 1968 [8 May, 1966], No. 38913/68. Headings F2C and F2L. [Also in Division B8] Driven rollers of a roller conveyer have a clutch which may be disengaged for interruption of the drive by control means operable by articles on the conveyer. In Fig. 3, an article 88 has been halted by a stop 90 but the following article is no longer driven by a roller 12 since a control device 18 actuated by a feeler roller 20 has disengaged the clutch in the roller 12 and there is no collision between the two articles. Drive by a roller 12<SP>11</SP> for a further article 88 will be similarly interrupted by depression of a feeler roller 20<SP>11</SP>. Construction of rollers 12, Fig. 2.-A stationary shaft 11 rotatably carries a driving body 40 provided with a pulley portion 42 for a driving belt 16, the body 40 carrying a control sleeve 46, 48 which is axially movable on a sleeve portion 44 of the body 40. The control sleeve body 48 houses a number of spring-urged balls 51 which, when the sleeve is moved to the right, engage in depressions 35 formed in the base of a cylindrical recess 33 provided in end pieces 32 of the roller shell 30 and the roller is driven. This clutch device is disengaged by movement of the sleeve 46, 48 to the left. A lever 56, 57 of the control device 18 engages the sleeve portion 46 and, by arms 72, 66, 64, is connected to the shaft of the feeler roller 20. A spring 60 acting on the lever 56, 57 causes the clutch device normally to be engaged. In a modification, the lever is actuated by a cable 80. Alternatively, fluid operated piston-cylinder devices may be used to disengage the clutch, under control of the roller 20. Chain-and-sprocket drive may be used in place of the belt drive.
Patent GB-1427835-A (GB)
Title: Electrhydraulic control devices
IPC: F15B21/08
Filed: 1973-08-17
Abstract: 1427835 Valves ROBERT BOSCH GmbH 17 Aug 1973 [18 Aug 1972] 38939/73 Heading F2V [Also in Division H2] An electrohydraulic system includes a slide valve 18 having a differential piston 35 and resetting springs 39, 40. The pressure medium system is controlled by two " electromagnetic 2/2 directional valves 44, 47 which have electrical control and protective circuits (see Heading H2K). The valve and piston have a two part housing joined at 32 and the system has a manually operable handle 31.
Patent GB-1478326-A (GB)
Title: Arrangement for the partial closure of the needles latches  of latch needles
IPC: D04B15/08
Filed: 1974-09-06
Abstract: 1478326 Knitting machines H STOLL GmbH & CO 6 Sept 1974 38981/74 Heading D1C In a parallel V-bed knitting machine, a latch lifting element 40 moves ahead of yarn guide 50 just above the crossing point of the needles to ensure that the latches are lifted and close over the feed yarn even when the loops of the previous course are relatively large. Element 40 may be of rubber or plastics or may be a long bristle brush.
Patent GB-1004538-A (GB)
Title: Melting point tester
IPC: G01K1/02
Filed: 1963-10-07
Abstract: 1,004,538. Determining melting points electrically. CALIFORNIA RESEARCH CORPORATION. Oct. 7, 1963 [Oct. 10,1962], No. 39493/63. Headings G1D and GIN. Apparatus for determining the melting point of a normally liquid material e.g. hydrocarbon distillates comprises a container 11 for the liquid 13 to be tested, a movable metal probe 17 having a tip 18 adapted to be immersed in the liquid, a refrigerant e.g. liquid nitrogen, to reduce the temperature of the probe below the freezing point of the liquid to produce a cap 33 of frozen material on the tip 18, means for raising the probe to effect a raising of its temperature and hence cause at least a portion of the cap 33 to fall from the tip, and a thermocouple 20 for measuring the temperature when the fall of material is detected. The probe is mounted in a ring 15 on a rod 14 and the cap 33 is formed by allowing liquid nitrogen to cool the inside of the probe by way of tubing 32. The container 11 is mounted inside an overflow retainer 12 so that the level of the liquid may always be kept to the top of container 12 allowing the cap 33 to always be the same size. When the derived size. of cap has been attained the tip 18 and cap 33 are raised just clear of the path between on aligned light source 24 and photo-cell 25. The tip 18will be warmed by the surrounding air to melt the cap although an auxiliary heater may be utilised if necessary, and when the cap falls it interrupts the light path to the photocell 25, which actuates a lamp 28 by way of an amplifier 27. The temperature as given by an indicator 22 is noted. Alternatively or additively the temperature may be recorded on a chart recorder 23, the photo-cell output causing the chart pen to make a short dash on the chart to indicate the melting point. To effect this the photo-cell triggers a thyratron in the amplifier 27 to operate a relay controlling the chart pen and lamp 28.
Patent GB-1519506-A (GB)
Title: Static mixers for viscous material
IPC: B29C39/02
Filed: 1975-09-26
Abstract: 1519506 Mixing apparatus EXXON RESEARCH & ENG CO 26 Sept 1975 [9 Dec 1974] 39523/75 Heading B1C A static mixer especially for polyurethane foam ingredients comprises a straight elongated conduit 13 having inlets 11, 12 at one end, an outlet to a mould at the other end, and mixing blades disposed in intersecting pairs horizontally and vertically as at 14l 14r and 14b, 14t, Fig. 7, to provide a serpentine path through the mixing conduit, which as shown is square in cross-section. Each blade may be retracted through a slot in the wall of the conduit by a cam 20, 22, whereby the blade is scraped clean, and all residues may then be removed from the conduit by passing through it a reamer 24 operated by a cam 26.
Patent GB-1217262-A (GB)
Title: Improvements in or relating to precision balances
Inventor: CHAPPELL FRANK ARTHUR
IPC: G01G21/24
Filed: 1968-08-20
Abstract: 1,217,262. Weighing apparatus. L. OERTLING Ltd. Aug. 15, 1969 [Aug. 20, 1968], No.39725/68. Heading G1W. A beam balance comprising a pan carrier 15 pivotally mounted on one end of a pivotally supported beam 13 is provided with a stabilizing device comprising a flexible ribbon 25 tensioned between and extending over arcuate surfaces 22, 24 of shoes 21, 23 connected to the frame 10 of the balance and the pan carrier 15, respectively, one of the shoes e.g. 23 being resiliently mounted whereby the effictive length of the ribbon intermediate the shoes 21, 23 is constant and independent of the load placed on the pan 18 of the balance. As shown, the shoe 23 is connected to the top end of a vertical blade spring 26 and the bottom end thereof is connected to the pan carrier 15. The pan carrier 15 may be provided with a weight supporting mechanism and the end of the beam 13 opposite the carrier 15 may carry a counterweight. The flexible ribbon 25 may be of metal.
Patent GB-946170-A (GB)
Title: A process for removing biuret from a biuret-containing solution saturated with urea
IPC: C07C273/18
Filed: 1962-10-19
Abstract: Biuret is removed from a biuret-containing solution saturated with urea by diluting, cooling to give a suspension of urea crystals and crystals of a urea-biuret double salt, diluting with sufficient water to dissolve urea and leave aqueous biuret crystals, and separating these. The initial solution may be obtained from a biuret-containing urea solution by subjecting it to vacuum crystallisation and removing the resulting urea crystals; after removing biuret as above the resulting liquor is returned to the vacuum crystallisation step.
Patent GB-1284457-A (GB)
Title: Piezoelectric ceramic compositions
Inventor: NISHIDA MASAMITSU
IPC: C04B35/50
Filed: 1969-08-08
Abstract: 1284457 Piezo-electric ceramics MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 8 Aug 1969 [8 Aug 1968] 39829/69 Heading C1J A piezo-electric ceramic comprises a solid solution of a material from the area bounded by straight lines joining the points A, B, C, D and E of Fig. 2 and further containing 0À1-5% of Mn calculated as MnO 2 .
Patent GB-825676-A (GB)
Title: Germicidal iodine complexes
IPC: A01N59/12
Filed: 1957-12-23
Abstract: The invention comprises complexes of iodine with quaternary ammonium compounds of the general formula <FORM:0825676/IV (b)/1> (wherein at least one of R1 and R3 is a C12\t to C18 alkyl group, at least one of R2 and R3 is a (CH2CH2O)y. H group, wherein y is an integer within the range of 2 to 200, R3 when not otherwise provided for is a lower alkyl, benzyl or phenyl radical, R4 is a lower alkyl, benzyl or substituted benzyl radical (e.g. lower alkylbenzyl, lower alkoxy-benzyl, nitro-benzyl and halo-benzyl radicals), and X is a salt-forming anion), and the preparation thereof by dissolving iodine in the quaternary ammonium compound, or by dissolving iodine in a volatile solvent and mixing the solvent solution with the quaternary ammonium compound.  The iodine complexing can be effected in part by means of an iodophor selected from anionic and nonionic surface-active agents, and the iodine can be solubilized in part by association with an alkali metal halide.  The complexes can be associated with a water-miscible liquid or a water-soluble solid (e.g. urea or a synthetic detergent).  The qualification "lower" means that the group in question contains one to five carbon atoms.ALSO:Germicidal iodine compositions contain complexes of iodine with quaternary ammonium compounds of the general formula <FORM:0825676/VI/1> (wherein at least one of R1 and R3 is a C12 to C18 alkyl group, at least one of R2 and R3 is a (CH2CH2O)y.H group wherein y is an integer within the range of 2 to 200, R3 when not otherwise provided for is a lower alkyl, benzyl or phenyl radical, R4 is a lower alkyl, benzyl or substituted benzyl radical (e.g. lower alkyl benzyl, lower alkoxy benzyl, nitro-benzyl and halo-benzyl radicals), and X is a salt-forming anion) in admixture with a water miscible liquid or with a water soluble solid (e.g. urea or a synthetic detergent.  It is desirable that the diluent should generally include a component providing an acid reaction in aqueous media (e.g. hydrochloric or phosphoric acid).  The qualification "lower" means that the group in question contains one to five carbon atoms.  The iodine complexing can be effected in part by means of an iodophor selected from anionic and non-ionic surface active agents, and the iodine can be solubilized in part by association with an alkali metal halide.  The compositions may be used to impregnate fibrous materials to impart disinfectant properties thereto.
Patent GB-905721-A (GB)
Title: Improvements in or relating to screen printing machines
IPC: B41F15/46
Filed: 1959-11-24
Abstract: 905,721. Stencilling-apparatus. ICHINOSE, H. Nov. 24, 1959 [May 26, 1959], No. 39873/59. Class 100 (2). In an automatic screen-printing machine wherein a web to be printed is fed intermittently on an endless band under a plurality of stencil frames, each frame is provided with squeegee mechanism comprising three squeegees supported for reciprocation over the frame, mounted so that on each stroke the leading blade is raised clear of the screen, while the remaining two blades are operative. The end blade 14 is mounted on a bracket 19 and is vertically adjustable thereon by rotating a nut 35a, being secured by a lock-nut 20a. The bracket 19 is secured to a grooved collar 18 by a lock-nut 21a and a part fitting a groove 22a in the collar. The collar is secured to a shaft 8a by a lock-nut 17a engaging a groove 41 in the shaft. The other end blade 15 is similarly mounted. The central blade 16 is mounted on a bracket 27 which is urged upwards by a leafspring 26, and terminates in a tapering portion 28 engaging sloping faces of adjusting screws 31, 32, whence by rotating the screws in the brackets 19, 25, the height of the blade 16 is adjustable. In operation, when the driving mechanism moves the shafts 8a, 8b to the right, the latter is raised to lift the blade 15 clear of the screen 13, the blade 16 being held down by the face 29 of the screw 31, and the blades 14, 16 forcing the colour through the screen. On the return stroke, the shaft 8a and the blade 14 are raised.
Patent GB-1246081-A (GB)
Title: Improvements in and relating to rotary impeller pumps
Inventor: SILVER BERNARD
IPC: F04D7/04
Filed: 1967-09-01
Abstract: 1,246,081. Centrifugal and axial-flow pumps. B. SILVER and S. SILVER. Nov.29, 1968 [Sept.1, 1967], No.39989/67. Heading F1C. [Also in Divisions B1 and B2] A centrifugal pump unit, Fig. 7, or axial-flow pump unit, Fig.2, e.g. for waste disposal units, sewage plant, mixers, disintegrators, emulsifiers, homogenisers and the like, has on the discharge side of the impeller 2 at least one chamber 5 for passing the impelled fluid to one or more outlets 6, and in addition has a fluid flow path 7 through which some of the impelled fluid can escape discharge to the outlet. The centrifugal or axialflow pump unit may be used on its own as shown in Fig. 2, or arranged within a casing 9 having an inlet 10 as shown in Fig. 7. The chambers 5 have screens 4 over their inlet regions and the flow paths 7 have cutting blades 8, the screens and blades assisting break-up of any solids in the fluids. The outlets 6 may contain flow control valves to control the degree of mixing of two liquids supplied through the inlet 10. The casing 9 may have cooling fins. Contrary to the arrangement shown the centrifugal pump unit may comprise one or three chambers (5) and flow paths (7), Figs.1, 4 and 5 (not shown). In another centrifugal pump unit, Fig. 6 (not shown), the impeller is frusto-conical and the associated chambers (5) have part-conical screens (4). In another arrangement, Fig. 9 (not shown), a pump unit similar to the one shown in Fig. 7 but having the outlets (6) extending axially downwards from the chambers (5) is arranged within an open topped or a sealed vessel (12). Moreover, the outlets (6) have twoway valves (14) which can be adjusted into positions in which the fluid is returned through conduits (15) back to the vessel (12) for further mixing. The respective screens 4 may be of different mesh for grading purposes.
Patent GB-1510746-A (GB)
Title: Apparatus for severing developed film strips into sections and immediately mounting same in slide frames
IPC: G03D15/10
Filed: 1976-09-27
Abstract: 1510746 Mounting photographic slides GEIMUPLAST PETER MUNDT KG 27 Sept 1976 [2 Oct 1975] 40020/76 Heading G2X An apparatus for mounting sections 2 of a photographic film strip in a slide frame 5 consisting of a base 28 and cover 13 comprises parallel guide paths (6), (7) for the film strip and slide frames respectively, cutting elements (8), 8' for cutting the strip into sections 2, a tong-like gripper 1 in the space between the cutting elements for gripping a cut section 2 and inserting it into a spread-open slide frame 5 in a direction perpendicular to the guide paths, a storage magazine (9)  for new slide frames, a guide-track which forms at least part of guide-path (7) and has guide faces (12), (15) which hold down the side edges of the base 28 of each frame 5 as it moves along, and a bar 11 having a taper (10) which contacts each frame  causing cover 13 to flex upwardly to spread the frame open. The frame may be spread-open  further by a ramp (14) or the ends of gripper 1. The section may be fully inserted by the gripper (Fig. 3) or it may be only partially inserted Figs. 4, 5, (not shown), in which case the insertion is completed by a guide bar (24) having a oblique front edge (26) during continued movement of frame 5.