baber/WOPTO huggingface dataset:
Patent GB-785128-A (GB)
Title: Improvements relating to clamping couplings for tubular scaffolding
Inventor: BARTON PETER
IPC: E04G7/18
Filed: 1955-03-26
Abstract: 785,128. Scaffold clamps. BARTON & SON, Ltd., B. C. March 5. 1956 [March 26, 1955], No. 8889/55. Class 20(2). A clamp for se-  curing two scaffold tubes at rightangles to each other comprises a C-shaped member a having a cradlelike flange a' at its lower portion extending at rightangles to the plane containing the C- bracket and adapted to receive a first scaffold tube b by lateral approach and having a flange a<SP>3</SP> on the lower inner periphery extending in the opposite direction to the flange a' and adapted to receive and lend support to the second scaffold tube c at right-angles to the first tube b and bearing thereon. A screw d carried by the upper portion of the C-bracket is adapted to impinge on the surface of the tube c and thereby clamp the tube c in abutment with both the tube b and the flange a<SP>3</SP>.
Patent GB-875864-A (GB)
Title: Improvements in or relating to fused electric plugs
IPC: H01R13/68
Filed: 1959-03-16
Abstract: 875,864. Two-part couplings. LIGHT & POWER ACCESSORIES CO. Ltd., and LOTT, F. J. Jan. 27, 1960 [March 16, 1959], No. 8981/59. Class 38 (1). An electric plug has fuse clips 4, 7 connected respectively to a line pin 2 and a line terminal 9 secured to a common insulating member 6 to constitute a unit which is insertable or removable from a rubber plug body 1. The clip 4 may have a downwardly projecting lip 13 to prevent turning movement and is secured to the member 6 and pin 2 by a spigot 3 on the pin. Another spigot 10 on the line terminal 9 is burred over to attach the member 6 and terminal 9 to a lug 8 on the clip 7. The member 6 may be reinforced by longitudinal ribbing or corrugations or may be bowed laterally.
Patent GB-703985-A (GB)
Title: Improvements in or relating to submersible pumps
Inventor: JOCHIMSEN SYDNEY EDWARD
IPC: F04D13/10
Filed: 1950-04-12
Abstract: 703,985. Centrifugal pumps. JOCHIMSEN, S. E., and NALDER, N. F. July 9, 1951 [April 12, 1950], No. 9033/50. Class 110 (1) In a submersible pump in which the axis of the pump and its driving motor is vertical, the thrust bearing is located above the pump and motor and within an air bell whose lower skirt edge is disposed at a level so far below that of the bearing that the volume of free space within the bell and below the bearing exceeds that above the bearing, and the surface of the pump shaft is vented to the free space below the bearing. One or more impellers 11 are driven by an electric motor (not shown) depending below them. The driving shaft 10 is extended upwardly through a sleeve 16 to a set of thrust bearings 18a, 18b and carries a liner 32 which co-operates with sleeve bearings 17a, 17b. An air bell 23 is seated upon a seal ring 21 and is held in place by a flange 25 which is clamped between the flanges of casing parts 15, 27. Preferably, the extension of the air bell below the bearings 18a, 18b is at least twice its extension above the bearings. During assembly, the air bell is packed with grease lubricant, any remaining voids being filled with clean water supplied through a duct 36. The duct 36 and a vent pipe 37 are then closed by plugs 38. Ducts 31 provide equalization of pressure between the interior of the air bell and the space between the sleeve bearings, whereby leakage of lubricant or pumped liquid past the bearings is prevented. In a modification, a cylindrical wall projects from the flange 34 so as to surround the thrust bearings and act as a lubricant container. To provide access to the thrust bearings, the top part of the air bell may be removable. A pipe line provided with a non-return valve may be connected to the air bell to permit replenishment of the lubricant or sealing medium.
Patent GB-897003-A (GB)
Title: Improvements in firearms
IPC: F41A3/82
Filed: 1961-03-13
Abstract: 897,003. Firearms. MIZZI, J. M. March 13, 1961, No. 9063/61. Class 119. A firearm comprises a cylindrical outer breech block part 47 Fig. 3 having an axial passage 49 in which is slidably mounted an inner breech block part 58 provided with a firing pin 59 movable in a reduced diameter front part of the passage 49. A longitudinal slot 48 filmed in the part 47 opens radially into the passage 49 and a spring-urged pivoted trigger sear 40 extends through the slot 48 to engage the forward end of the inner breech block part 58 when the firearm is cocked. Springs 60, 62 respectively urge the inner and outer breech block parts forward and loading and extracting means are associated with the part 47, the breech housing 10 being provided with an ejection port 56 Fig. 2 (not shown) through which projects a cocking handle 57 secured to the part 47. A circumferential groove 64 Fig. 4 in the inner part 58 provides a shoulder 63 which is engaged by the sear 40 when the firearm is uncocked. As shown the firearm comprises a machine carbine for automatic or single shot firing and has a barrel 12 Fig. 1 with an integral enlarged breech end 15 fitting in the breech housing 10 and releasably retained therein by a spring-loaded plunger 16. Sling holders 21 are secured to the front pistol grip 17 and to the stock 19. A magazine guide 22 is adapted to receive a cartridge magazine 23 which is held by a catch 26 and an ejector 27 secured to the breech housing 10 acts also as a magazine stop. If when the breech block parts are in the position shown in Fig. 4 and a fire control stop 46 is in the "safe" position shown in Fig. 3 bearing against a projection 37 of the trigger 29, the notch 38 of which engages the sear 40, the trigger cannot be operated and the sear prevents the gun from being cocked. If the fire control stop 46 is moved to the "single shot" position shown in Fig. 4, the sear 40 can be depressed and the gun cocked by drawing back the cocking lever 57 and releasing it. The parts then assume the position shown in Fig. 3 and the gun can be fired and is automatically cocked. On releasing the trigger, the slotted hole 32 in which the trigger pivot pin is engaged permits the trigger to move so that the front end of the sear engages on the notch 38. When the fire control step 46 is moved to "automatic" Fig. 5 and the trigger is pressed, the trigger detent 39 lifts the front end of the sear 40 to bring it to inoperative position, the stop 46 preventing any further retraction of the trigger. The inner breech block part 58 is thus disengaged and is driven forwardly to fire a round and subsequent recoil and advance of the breech block parts will cause continuous firing until the trigger is released. The front part of the breech block part 47 is formed with a central recess 51 for the head of a cartridge and a pair of loading ribs or keys 50 Fig. 6 extend downwardly from a cut away portion. An extractor 53, comprising a spring loaded lever fulcrumed in a longitudinal recess in the part 47, is formed with a tooth 54 extending into the central recess 51.
Patent GB-788180-A (GB)
Title: An improved carton or container and method of making same
IPC: B65D5/18
Filed: 1955-03-29
Abstract: 788,180. Cartons. BAHLSEN, W. March 29, 1955 [March 30, 1954], No. 9064/55. Class 18. A completely closed carton is formed by folding a blank to U-form to produce an end and two side walls, extensions on the free edges of the side walls being folded in and secured to provide three panels extending between the side walls, the panels having a continuous sealing strip running along them. In one embodiment, side extensions 6-9 are folded in at right angles to sides 1, 3, areas 16-20 forming gussets and strips 10, 11 and 12, 13 being superposed and sealed together. Extensions 4, 5 are similarly folded, the strips 10, 11 and 12, 13 having been folded against and secured to the panels from which they project. Mouth strips 14, 15 on the parts 4, 5 are sealed together and secured to their parent panel, the carton having been previously filled. In another embodiment, Figs. 10-21 (not shown) the sealed strip portions on the opposed panels are co-planar with the side 1 prior to being secured to their underlying panels. The sealed mouth strip portion is formed as before. A carton in which the walls 1 and 3 are trapezoidal, Figs. 22-29 (not shown), is also described.
Patent GB-1357047-A (GB)
Title: Aerial arrays
IPC: H01Q3/26
Filed: 1972-02-29
Abstract: 1357047 Aerial LICENTIA PATENTVERWALTUNGS GmbH 29 Feb 1972 [4 March 1971] 9262/72 Heading H4A Networks having attenuations which vary with frequency are inserted in the feeders to the elements of an aerial array, so that change of shape of the polar radiation diagram with frequency, which would otherwise occur, is substantially compensated over the operating range. As described, four feeders from a distributer A, Fig. 1, serve respective branching networks V 1  to V 4 , each of which is connected to a pair of dipoles symmetrically disposed about the centre of an array constituted by all eight dipoles. Frequency-dependent attenuation networks T 2  to T 4  are connected in the feeders V 2  to V 4  serving the outer six dipoles. The networks T 2  to T 4  may have variable elements whereby the width of the main lobe of the array may be adjusted under control of a unit K. Variable phase networks P may be provided in the feeders to the dipoles, whereby the direction of the main lobe can be adjusted. The frequencydependent attenuation networks may be of shunted-T type (a typical form being shown in Fig. 2b), or of M type, or of X type. More than one network may be connected in series in an aerial feeder, and active components may be used.
Patent GB-904403-A (GB)
Title: Improvements in and relating to the curing of polyepoxides
Inventor: REINKING NORMAN HERBERT
IPC: C08L63/00
Filed: 1961-03-14
Abstract: Steel panels are coated with a mixture of a polyepoxide and a curing agent therefor comprising a liquid glycol diamine of the general formula H2N-(CH2)3-O-(CnH2nO)x-(CH2) 3-NH2 where n is an integer of from 2 to 5 inclusive and x is an integer of from 1 to 11 inclusive. In Examples (1) to (4) steel panels are coated by a blade with mixtures of: (1) to (3) the diglycidyl ether of 2,2-bis (p-hydroxyphenyl) propane and the di(3-aminopropyl) ether of diethylene glycol; (4) the diglycidyl ether of 2,2-bis(p-hydroxyphenyl) propane and the di-(3-aminopropyl) ether of ethylene glycol.ALSO:Polyepoxides having an epoxy equivalent of more than one are cured by admixture with a liquid glycol diamine of the general formula H2N - (CH2)3 - O - (CnH2nO)x - (CH2)3 - NH2 where n is an integer of from 2 to 5 inclusive and x is an integer of from 1 to 11 inclusive. Specified glycol diamines are the di-(3-aminopropyl) ether of diethylene glycol, the di-(3-aminopropyl) ether of triethylene glycol and the di-(3-aminopropyl) ether of dipropylene glycol. Specified epoxy resins are the polyglycidyl ethers of polyhydric phenols and alcohols, the polyglycidyl esters of polycarboxylic acids and the reaction products of epichlorhydrin with aromatic amines.  Reactive diluents, e.g. butyl glycidyl ether, allyl glycidyl ether and phenyl glycidyl ether may be present in the reaction mixture, the viscosity of which may be reduced by inert solvents, e.g. acetone, methyl isobutyl ketone, isophorone, ethyl acetate, butyl acetate, ethylene glycol monoacetate, ethylene glycol monomethyl ether acetate, the methyl, ethyl or butyl ether of ethylene or diethylene glycol and trichloropropane, alone or in admixture with benzene, toluene, xylene, ethanol, isopropanol or n-butyl glycol.  In the Examples:-(1) to (4), (6) and (7) the diglycidyl ether of 2,2-bis(p-hydroxyphenyl) propane is reacted with:-(1) to (3) the di-(3-aminopropyl) ether of diethylene glycol; (4) the di-(3-aminopropyl) ether of ethylene glycol; (6) the di-(3-aminopropyl) ether of triethylene glycol and (7) the di-(3-aminopropyl) ether of dipropylene glycol whilst in Example (5) bis-(2,3-epoxy-cyclopentyl) ether is reacted with the di-(3-aminopropyl) ether of diethylene glycol.  Specifications 666,732, 787,051, 788,556, 865,314, 880,446 and U.S.A. Specifications 2,633,458, 2,870,170 and 2,898,349 are referred to.ALSO:Glycol diamines of the general formula H2N-(CH2)3-O-(CnH2nO)x -(CH2)3 NH2 where n is an integer of from 2 to 5 inclusive and x is an integer of from 1 to 11 inclusive are made by reacting one mole of a glycol HO (CnH2nO)x-H with two moles of acrylonitrile at 20 to 60 DEG C. in the presence of an alkali metal alkoxide, the resultant cyanoalkylated compound being hydrogenated at 95 DEG  to 100 DEG C. and at a pressure of about 1500 p.s.i.g. in the presence of nickel.
Patent GB-945940-A (GB)
Title: Reactive dyestuffs containing di- and tri-halo-acylamino groups
Inventor: SCHWEIZER AUGUST
IPC: C09B62/465
Filed: 1960-03-16
Abstract: 2 - (b :b  - dichloroacrylylamino) - 5 - naphthol - 7 -sulphonic acid, 1-amino-3-(b :b -dichloroacrylylamino)-benzene-6-sulphonic acid and 1-(b :b -dichloroacrylylamino)-8 - naphthol - 3,6 - disulphonic acid are prepared by adding a solution of b :b -dichloroacrylic acid chloride in acetone to a cooled and neutralised aqueous solution of 2-amino-5-naphthol-7-sulphonic acid, 1, 3-diamino-benzene-6-sulphonic acid or 1-amino-8-naphthol 3, 6-disulphonic acid.ALSO:The invention comprises water-soluble organic dyes of the azo, anthraquinone and phthalocyanine series which contain at least one b  : b -di-or a : b : b -trihalogenoacrylylamino radical, the monoazo dyes being free from a carboxylic group in ortho position to the azo group.  The dyes are prepared by treating a suitable water-soluble azo, anthraquinone or phthalocyanine dye containing at least one optionally mono-substituted amino group with an equimolar amount of a chloride of a b  : b -di- or a  : b  : b -trihalogeno-acrylic acid.  The azo dyes may be prepared by the usual coupling procedure using suitably substituted components. The dyes may be used to dye pad or print fibres of vegetable or animal origin, regenerated cellulose, casein and synthetic polyamide fibres and also leather, the dyeing being subjected to an alkaline after-treatment, optionally at a high temperature, and subsequently soaped.  In examples the preparation of mono- and dis-azo, metallized azo, stilbene-azo, arthraquinone and phthalocyanine dyes is described.
Patent GB-1442290-A (GB)
Title: Process for the hydroxylation of phenols and phenol ethers in the nucleus
IPC: C07C67/00
Filed: 1975-03-06
Abstract: 1442290 Hydroxylation of phenols and phenol ethers BAYER AG 6 March 1975 [6 March 1974] 9345/75 Heading C2C The invention comprises a process for the hydroxylation in the nucleus of a phenol (excluding unsubstituted phenol itself) or a phenol ether wherein a phenol (excluding unsubstituted phenol itself) or a phenol ether is reacted initially with substantially anhydrous hydrogen peroxide, wherein the reaction is carried out in the presence of an acid having a pKa value of #4À76 at 25‹ C. and wherein the resulting phenol or phenol ether hydroxylated in the nucleus is recovered. The acid is preferably one which is inert under the reaction conditions. The hydrogen peroxide may be dissolved in an anhydrous solvent. The reaction is preferably carried out at from 20‹ to 150‹ C. and may be carried out in the presence of a stabilizer.
Patent GB-293376-A (GB)
Title: Improvements in and relating to means for operating hot cathode electrical discharge tubes
IPC: H05G1/18
Filed: 1927-04-05
Abstract: 293,376. Gough, H. B., and Watson & Sons, (Electro-Medical), Ltd. April 5, 1927. R÷ntgen-ray tubes. - R÷ntgen-ray tubes are supplied from a delta-wound alternating-current source, a cathode-heating circuit and the main discharge circuit being energized each from a selected separate phase. If the self-rectifying action of the tube is not relied on and a mechanical or thermionic rectifier is included in the main discharge circuit, the rectifier is supplied from the third phase. Tappings 7 ..9 from the armature winding of a direct-current motor may be connected through slip-rings 4 .. 6 to transformers 10, 17 and a synchronous motor 16 as shown, the transformer 17 supplying the heating current to the cathode 14 of the X-ray tube 15 and the transformer 10 supplying, through a rectifier 12 driven by the motor 16, the main discharge circuit of high voltage between the cathode 14 and the anode 13. A regulating auto-transformer is connected between the rings 4, 5 and the transformer 10. When a load is placed on the tube, the voltage of one of the remaining phases, chosen to supply the cathode-heating current, is unaffected, the voltage of the third phase supplying the rectifier falling to a value between the voltages of the other phases : disturbances produced by a load on the tube, for example, in short X-ray photographic exposures, are thus less than where all circuits are supplied from a single-phase source. With a self-rectifying tube, the parts 12, 16 may be omitted. According to the Provisional Specification, the invention is applicable to discharge tubes in general.
Patent GB-646595-A (GB)
Title: Improvements in or relating to television transmitting tubes and circuits for use therewith
IPC: H01J31/34
Filed: 1948-04-05
Abstract: 646,595. Cathode-ray tubes. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES AGAZ. April 5, 1948, No. 9459. Convention date, April 9, 1947. [Class 39 (i)] In a television transmitting tube of the kind in which charges are stored on a target electrode 7 scanned by low velocity electrons, voltages are applied to electrodes during the flyback periods of the scanning beam and are such that the cross section of the electron beam becomes enlarged whilst the energy of the electrons in the beam during the flyback period is less than that during the scanning period and the beam current during the flyback period is greater than the beam current during the scanning period. A rectangular pulse generator 14 operates during the line and frame flyback periods. Positive pulses 17 forming one output from the generator are fed to the cathode 3 and still more positive pulses 18 forming a further output are fed to the modulating electrode 4. A further output 19 is fed to the electrode 5 which forms the crossover of the electron beam. The pulses 17, 18, 19 are of adjustable amplitude. The amplitude of the signals is adjusted in such a way that the electrons of the flyback beam do not reach the normally illuminated points of the target but discharge, to the maximum potential which can be neutralized by the scanning stroke beam, every point which, by reason of its illumination, would not have been dischargeable during the scanning sweep.
Patent GB-811958-A (GB)
Title: Improvements in or relating to electrical circuits employing transistors
IPC: H03K3/30
Filed: 1957-03-22
Abstract: 811,958. Pulse regenerating and single stable state transistor circuits. WESTERN ELECTRIC CO. Inc. March 22, 1957 [March 29, 1956], No. 9467/57. Class 40 (6). In a circuit for regenerating pulses, a source supplies positive-going pulses to the input of a transistor 10 to render it conducting, the output being applied to the primaries of feed-back transformer 18 and output transformer 15. In the normal state the emitter of transistor 10 is biased off by current flowing through resistors 26, 27 and diodes 24 to maintain the emitter potential below that of earth. A positive-going pulse from source 22 causes diode 24 to cease conducting, current through resistor 26 then passing through resistor 29 and diode 32 to the clock wave generator 30 which may produce a sinusoidal waveform. When that wave goes positive, diode 32 is also rendered non-conducting so that the current passes to the emitter of transistor 10 to cause current to flow in the collector circuit. The rise in collector potential appears across the secondary of transformer 18 and current is fed through diode 21 to maintain the state of regeneration. This condition continues until the clock pulse source goes negative when the transistor is cut-off. It is stated that the transformers 15, 18 should be chosen such that the potential developed across the primary of the feed-back transformer should be at least equal to half that appearing across the output transformer 15. The ratio of the self-inductance of the primary of the output transformer to that of the feed-back transformer should be a positive fraction.
Patent GB-951021-A (GB)
Title: Permanent dyeing of keratinous fibers
IPC: D06P3/10
Filed: 1962-03-12
Abstract: Keratinous fibres, e.g. wool, fur or especially human hair, are dyed by a process which comprises reducing some of the disulphide linkages of the cystine in the fibres to -SH groups while breaking hydrogen bonds by applying a suitable reducing agent, a hydrogen bond breaker for keratinous fibres and an aqueous solution of a water-soluble reactive dye.  The preferred dyestuffs contain vinyl sulphone, mono- and di-chlorotriazine or trichloropyrimidine groups (many listed). The specified reducing agents are thioglycollic acid (preferred), thiolactic acid thioglycerol, mercaptopropionic acid, sodium bisulphite, ammonium bisulphide, zinc or sodium formaldehyde sulphoxylate, sodium metabisulphite, potassium borohydride and hydroquinone and the specified hydrogen bond breakers are lithium bromide, urea, a mixture of lithium bromide and urea or resorcinol, catechol, dihydroxyacetone, formamide, potassium chloride and magnesium chloride.  The reducing agent and the hydrogen bond breaker may be applied before or together with the reactive dyestuff solution. In the case of the former a rinsing step may be included before the dyestuff solution is applied.  The aqueous compositions of the parent invention are usually of slightly alkaline reaction which may be achieved by the addition of ammonium hydroxide.  The compositions may also include the detergents: alkyl aryl sulphonates, sodium lauryl sulphate, triethanolamine lauryl sulphate, triethanolamine lauryl ether sulphate, alkanolamide fatty acid esters, polyoxyethylene fatty alcohol, polyhydric alcohol fatty acid esters, nonyephenoxy polyoxyethylene alcohols, soluble amine fatty acid soaps or soluble metallic fatty acid soaps as well as perfumes of the thickeners: guar, acacia and arabic gums, gelatin, polyvinyl alcohol, ethyl or methyl cellulose derivatives or alkylarylphenoxyethylene oxide condensates.  The present process may also be used for simultaneously "permanent waving" and dyeing human hair by employing known techniques combined with the present process. Examples are given. Specification 589,956 and U.S.A. Specification 2,564,722 are referred to.
Patent GB-398121-A (GB)
Title: Improvements in or relating to crushing or reducing machines
IPC: B02C18/12
Filed: 1933-03-29
Abstract: 398,121. Conical mills. EISEN- & STAHLWERKE OEHLER & CO. AKT.- GES., 44, Industriestrasse, Aarau, Switzerland. March 29, 1933, No. 9475. Convention date, Sept. 21, 1932. [Class 59.] In a mill for reducing bulky objects contained in garbage comprising a cutting member 7 rotating in a conical casing 1 provided with fixed knives 5, the lower portion of the casing is formed with an open periphery for the discharge of the crushed material. The lower portion is provided with diametricallyopposed, inclined knives 9 which co-operate with the knife 7 and with two shorter knives 10, a further three smaller knives 11 being secured on the flange 6a of the hub 6 for co-operation with the lower ends of the knives 9. The flange 6a overlaps the bearing support 4a and prevents materials entering the bearing.