baber/WOPTO huggingface dataset:
Patent GB-413904-A (GB)
Title: Improvements in machines for moulding pipes or pipe coatings of concrete and the like
IPC: B28B21/94
Filed: 1933-10-09
Abstract: 413,904. Moulding or coating concrete pipes. VIANINI, G., 33, Via Nizza, Rome. Oct. 9, 1933, No. 27744. [Class 87 (ii).] A machine for making or coating pipes and/or applying metallic reinforcement under tension, comprises face plates with self-centering devices for holding a former or a pipe to be coated, one of the faceplates being axially adjustable, while the other is driven through reduction gearing 2 by a motor 1 which also drives independent lead screws 18, 21. The screw 18 traverses a carriage 29 on which is mounted a hopper 30 supplying plastic material to a carrier band 32 through an adjustable gate ; the band applying the material to the rotating pipe or former 8. The carrier band is supplied from a spool 33, Fig. 6, under tension regulated by an adjustable weight 34, and a roller 39 controlled by a weight 40 presses overlapping coils of the band on to the pipe &c. The band on its way to the pipe passes along a guide having sides one of which overlaps one edge of the band to prevent application of the plastic material thereto. When the pipe has been coated, it is reversed and the carrier band is re-wound on its spool. Long pipes may be supported by a travelling guide moving in advance of the carrier band or of the reinforcing wire. Reinforcement may be applied independently or simultaneous with the plastic material by a carriage 24 traversed by the screw 21 and having one or more guide pulleys 26, the wire 27 being fed from a spool 44, Fig. 5, by way of a straightener 45 and pulleys 46, 47, 50, 52, 66 which are so mounted that the wire is delivered under constant tension. This is effected by braking the pulley 47 by an adjustably loaded arm 48 and also the pulley 50 by an adjustably loaded arm 51 which is actuated in response to variations in the tension by a cord 63 coupled to a vertically slidable yoke in which the pulley 52 is journalled. The yoke is counterweighted by an adjustable load 62. The pipe or coating may be finally compressed by a band 79, Fig. 11, carrying a receptacle 81 for supporting an adjustable weight, this mechanism being described in Specifications 382,290 and 396,572.
Patent GB-1055832-A (GB)
Title: Basic dyestuffs
IPC: C09B26/04
Filed: 1964-07-06
Abstract: The invention relates to hydrazone dyestuffs of the formula <FORM:1055832/C4-C5/1> wherein R represents as alkyl, aryl or aralkyl radical, R1 stands for an alkyl or aralkyl radical, A represents an aromatic carbocyclic ring system and X is an anion, wherein the naphthalene ring shown in the above formula and the radicals R, and A may contain substituents other than sulphonic and carboxylic acid groups, e.g. alkoxy, halogen, e.g. Cl, Br or F, acetamido, cyclohexyl, phenyl, 6-methylbenzothiazol-2-yl, amino, phenyl-azo, alkyl and nitro as may R1, e.g. vinyl, nitro, alkyl, chloro, alkoxy, phenyl sulphonyl, carboalkoxy and acetyl.  The anion X- may be Cl-, Br-, I-, SO4 alkyl-, SO3 aryl-, SO3 alkyl- or S2O7 alkyl-. Other anions may be introduced by neutralizing the free base and adding an acid, e.g. HBF4, H3PO4, CH3COOH, HClO4, HNO2, oxalic, formic, citric, maleic, tartaric, benzoic lactic, propionic, butyric, succinic or chlorozincic acids.  The hydrazone dyestuffs are prepared by quaternizing an appropriate azo compound of formula <FORM:1055832/C4-C5/2> with R1X.  The azo compounds are obtained by reacting the compounds of Specification 1,055,831 with diazonium salts prepared from appropriately substituted aromatic amines. Dyestuffs in which group A contains an amino or acetylamino group may be diazotized and coupled with 3-methyl-5-pyrazolone-1-carboxylic acid-amidine hydrochloride, 1-phenyl-3-methyl-pyrazolone-(5), m-cresol, N-methyl-N-b  - cyanoethyl - aniline, 1 - (2 - chlorophenyl)-3 - methyl - pyrazolone - (5), 1 - (4 - nitro phenyl) - 3 - methyl - pyrazolone - (5), 1 - (4-methyl sulphonylphenyl) - 3 - methyl - pyrazolone - (5), 3 - methyl - pyrazolone - (5), 1-phenyl - pyrazol - 5 - one - carboxylic acid ethyl ester - (3), 1 - phenyl - pyrazol - 5 - one- 3 - carbonamide acetanilide, resorcinol, dimethyl aniline, diethyl aniline, N-methyl-N-hydroxyethylaniline, N,N-dihydroxyethyl aniline, N,N-dihydroxyethyl aniline and 3-methyl-N-methyl-N-hydroxyethyl aniline.
Patent GB-402576-A (GB)
Title: Improvements relating to junction boxes for metallic conduits for the protection of electric conductors
IPC: H02G3/08
Filed: 1932-10-06
Abstract: 402,576. Junction-boxes. WHEELER, F. H., 39, Victoria Street, London. Oct. 6, 1932, No. 27821. [Class 38 (i).] A surface box associated with a similar box embedded in a ceiling or wall is secured thereto by screws passing through elongated annular slots 2 in the base and through lugs on the concealed box so as to allow of rotary adjustment. The outlets for the surface conduits are formed in bosses 3 projecting inwardly from the wall of the box, and any outlets not used may be closed by a flat cap with resilient prongs. The leads to the concealed box pass through a central aperture 5. A cover plate is secured by screws to lugs 4.
Patent GB-888271-A (GB)
Title: Assemblies of detachably-connected frame members
IPC: H05K7/14
Filed: 1958-08-29
Abstract: 888,271. Releasable fastenings. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug; 29, 1958 [Sept. 2; 1957], No. 27821/58 Class 44.. in a device comprising- two; substantially parallel" members. 27, 29 forming- part of a frame, and a supporting plate 1 which may be of insulating-material detachably connected to the parallel members, each member is formed with an open-ended slot 31 or 23 whichslots are substantially parallel near their open ends and at a distance from their open ends diverge from each other and are widened near their closed ends 39, and tongues 43, 45, 47, 49 are formed on parallel edges of the supporting plate 1 which tongues extend into the parallel and widened portions of the slots and interlock withabutments 36, 34 formed on theparallel members of the frame so that the supporting plate 1 cannot be withdrawn without twisting it.
Patent GB-603519-A (GB)
Title: Improvements in or relating to photographic copying cameras
IPC: G03B27/52
Filed: 1945-10-23
Abstract: 603,519. Photographic copying cameras. TAYLOR. TAYLOR, & HOBSON, Ltd., and WARMISHAM, A. Oct. 23, 1945, No. 27857. [Class 98 (i)] ' The focal plane of a copying camera is fixed relatively to the plane of the original, and provision is made for inserting one or other of two interchangeable deflecting systems adapted in combination with the camera lens, to produce in the focal plane respectively an ordinary or a laterally inverted image of the original. As shown, the plane of the original A, the optical axis of the lens C, and the focal plane B are set parallel, and holders D, E for reflectors, inclined at 45 degrees to the optical axis, are provided one on each side of the lens. For an ordinary image, a plane reflector or equivalent prism is inserted in each holder ; while for a laterally inverted image a plane reflector G or equivalent prism is inserted in one holder, and a roof reflector or roof prism H is inserted in the other holder with its roof H<3> parallel to reflector G.
Patent GB-635741-A (GB)
Title: Improvements in ratchet braces and like tools
IPC: B23B45/12
Filed: 1947-10-17
Abstract: 635,741. Hand and breast drills. LOBO, F. G. Oct. 17, 1947, No. 27864. [Class 83 (iii)] A ratchet brace, in which the pawl 3 and ratchet 2 are located in a housing mounted on the crank arm 7 and forming a bearing for the chuck spindle 8a, has a manipulating knob 5 provided on the stem 3a of the pawl. The knob has an index mark 9 and, if rotated through 180 degrees, reverses the direction of drive or, if rotated through 90 degrees, presents two parallel-sided faces to the square-faced ratchet teeth so that a solid drive is effected.
Patent GB-758665-A (GB)
Title: Process for the oxidation of mono-methyl naphthalenes
Inventor: CHANDLEY EDWIN FENTON
IPC: C07C45/36
Filed: 1953-10-09
Abstract: Monomethyl naphthalene is oxidized in the side chain by subjecting a monomethyl naphthalene in solution in a solvent comprising one or more fatty acids and containing a metallic oxidation catalyst in solution, to the action of oxygen at a temperature of from 150 DEG to 250 DEG  C. with continuous removal of water formed from the reaction mixture, and recovering the resultant oxidation products. The process may be carried out at atmospheric or higher pressures. Specified solvents are fatty acids boiling below 250 DEG  C.-such as acetic, propionic, butyric, isobutyric, isovaleric and caproic acids, the acids boiling between 150 DEG  and 250 DEG  C. being used at atmospheric or elevated pressures and those boiling below 150 DEG  C. at elevated pressures. The acids form azeotropes with water and are used to remove water from the reaction mixture.  The water may also be removed by a water-binding agent and the anhydrides of acetic, butyric, isobutyric and isovaleric acids are mentioned.  The catalysts are organic salts such as cobalt and manganese acetates. Either a - or b -methyl naphthalene or a mixture of isomers may be used, and the material must be free of sulphur or sulphur compounds. The products are naphthoic acid, naphthaldehyde, naphthyl-methyl-naphthoate and, since the solvent is a fatty acid, the naphthyl-methyl ester thereof.  These products may be separated from the oxidation product.  Alternatively the oxidation product is hydrolysed, the naphthoic acid separated and the naphthyl carbinol, naphthaldehyde and unchanged methyl naphthalene recycled.  In examples (1) b -methyl naphthalene, butyric acid and a mixture of cobalt and manganese acetates are placed in a cylindrical glass reactor heated to 195-200 DEG  C., oxygen is passed in at the bottom, water is separated from the condensed vapours, and the products are separated by known methods; (2) as in (1) but using a mixture of a - and b -isomers; (3) as in (1) but the oxidation product is stripped free of butyric acid and catalyst and hydrolysed by refluxing with aqueous caustic soda, the naphthoic acid is removed and the non-acidic oxidation products recycled.
Patent GB-651096-A (GB)
Title: Improvements in or relating to magnetic separators
IPC: B03C1/10
Filed: 1948-10-27
Abstract: 651,096. Magnetic separators. PHILIPS ELECTRICAL, Ltd., DAVIS, C. W. V., and WESTWOOD, H. W. Oct. 27, 1948, No. 27953. [Class 72] In a magnetic separator for the removal of magnetic solids from liquids and having a rotary magnetic member, means are provided for removing excess liquid from the magnetic particles adhering to the magnetic member before and/or after their removal from the member. As shown, applied to a machine for separating magnetic metallic particles from a cutting fluid., a tapered roller 11, mounted in adjustable brackets 13, squeezes excess cutting fluid from the particles adhering to a rotary magnetic member 1. A squeegee comprising a flat piece of rubber having slits along its edge may be used instead of the roller. The particles may then be removed from the member by a scraper 16 and fall on to a mesh 19 through which excess fluid drains and is guided to the clean fluid outlet of the machine by a felt 20. The particles may be finally deposited in a fine mesh basket which allows of further draining, Fig 8 (not shown). Specification 598,295 is referred to.
Patent GB-399317-A (GB)
Title: Improvements relating to metal vapour lamps
IPC: H01J61/82
Filed: 1932-10-08
Abstract: 399,317. Discharge lamps. QUARZLAMPEN-GES., Hanau, Germany. Oct. 8, 1932, No. 28109. Convention date, Oct. 10, 1931. [Class 39 (i).] In a high-pressure metalvapour arc lamp with solid electrodes, i.e. a lamp in which the arc moves away from the envelope and becomes constricted and intensely luminous, the metal forming the arc is present in the working condition of the lamp only in the form of vapour. In such a lamp the temperature is always above the condensation, temperature of the metal, so that at the coolest part of the tube, the vapour is superheated, or, at least, dry saturated ; the static characteristic is such that the increase in voltage with increasing load is small while the increase in current is larger. As shown, the electrodes 2, 3 consist of basinshaped members piled within one another, or of a closely-wound spiral strip of metal. Barium oxide is inserted in the spaces between the basins or turns. The tube contains argon and a small quantity of mercury or cadmium or a mixture of these metals. Starting is effected by means of an auxiliary electrode or by means of a strip of material known by the registered Trade Mark "Aquadag," applied on the outside of the envelope in two parts separated by a gap. Heat insulation 6 is provided on the ends of the envelope, so that when the lamp is switched off, metal is condensed on a part of the wall traversed by the discharge.
Patent GB-1223192-A (GB)
Title: Improvements in or relating to communications apparatus
Inventor: DORROS IRWIN
IPC: H04N7/15
Filed: 1968-06-13
Abstract: 1,223,192. Interconnection systems. WESTERN ELECTRIC CO. Inc. 13 June, 1968 [16 June, 1967], No. 28207/68. Heading H4K. In a communication system video connections can be selectively established between stations interconnected for an audio conference. The system described has four stations each of which includes a television camera, a video receiver, a speakerphone and a push-button keyboard. During a conference the stations are directly connected together via a mixer network in audio fashion and under automatic control each station displays the image of the subscriber who is speaking except his own station which displays that subscriber who was last to speak. Each subscriber may however by operating his keyboard select any of the other subscribers involved in the conference for display at his station. The camera at each station transmits the picture of its subscriber to the central point at which selection switches, individual to the stations and under manual control from the station or automatic control from the central point, each picks off one of the video signals from a corresponding distribution feeder and transmits it to its station. The selection switches are in fact trees of contacts of relays controlled by the automatic control and by the keyboard at the associated station. The automatic control is detailed and includes four gates which are simultaneously opened at periodic intervals. A speech detector associated with the first subscriber to speak passes a pulse through one of the gates to a storage circuit causing the corresponding subscriber to be displayed and a feedback signal to inhibit operation of the other gates for a predetermined period.
Patent GB-617138-A (GB)
Title: Improved air conditioning system
IPC: F24F3/048
Filed: 1946-09-20
Abstract: 617,138. Ventilating & air-conditioning systems. FRIGIDAIRE, Ltd., MURDOCK, A. C., and PERRIN, L. Sept. 20, 1946, No. 28237. [Class 137] In a system for ventilating and heating or cooling the air in a room or like enclosure, a room air inlet duct 16, e.g. at floor level, communicates with a waste air outlet 17 and by means of dampers 18, 19, with two fresh air inlets 1, 2 leading separately and respectively to evaporator and condenser elements 5 and 6 of a refrigeration system (not shown). Thus, by means of fans 7, 8, fresh and/or room air in any combination is passed to each element 5, 6 and either cooled or heated air from element 5 or 6 is directed into the room, via duct 13, (e.g. near the ceiling), according to the position of a coupled pair of additional dampers 14, 15, the other stream of air being directed outside through duct 11 or 12. The dampers 14, 15 and 18, 19 can be controlled automatically by thermo-sensitive or humido-sensitive devices. The elements 5 and 6 can be secondary elements in heat transfer relation with the primary evaporator and condenser of the refrigeration system.
Patent GB-616871-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J25/56
Filed: 1946-09-20
Abstract: 616,871. Caps and holders for discharge tubes. STANDARD TELEPHONES & CABLES, Ltd. Sept. 20, 1946, No. 28303. Convention date, Oct. 3, 1945. [Class 38 (i)] [Also in Group XL (a)] A magnetron comprises two interdigitated anode members 2, 3, Fig. 1, mounted on annuli 14, 13 sealed through the glass envelope of the device, and the conductors 15, 16 of a concentric transmission line fit detachably over the annuli 14, 13. One leg of the magnetic yoke is hinged at 21 to permit easy replacement of the dis. charge tube.
Patent GB-483329-A (GB)
Title: Improvements in or relating to electrical signalling arrangements
IPC: H04Q3/42
Filed: 1936-10-17
Abstract: 483,329. Electromagnetic relays. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and BEALE, C. E. Oct. 17, 1936, No. 28319. [Class 38 (v)] [Also in Group XXXIX] An electromagnetic relay which energizes in a local circuit and is maintained by a holding winding included in a signalling circuit is adjusted to release in response to a cessation of current, of very short duration, such as is brought about by the change over of a relay contact. As shown, relay P energizes over its lower winding upon operation of SZ (not shown) and connects up R which locks and opens the energizing circuit of P. Relay P is thus maintained over its upper winding in series with relay A and releases upon the momentary opening of the circuit when switching relay H. (not shown) operates, the upper winding then being short-circuited. Instead of the shortcircuiting arrangement, the upper winding of P may be connected up over its own make contact. Specification 469,184, [Group XXXIX], is referred to.
Patent GB-248433-A (GB)
Title: Improvements in loud speakers
IPC: H04R7/12
Filed: 1924-11-26
Abstract: 248,433. Round, H. J., and Robb, J. G. Nov. 26, 1924. Loud-speakers; diaphragms. -- Loudspeaker diaphragms of the type employed in hornless load-speakers are formed of a cone and one or more truncated cones so that an axial half section of the diaphragms is made up of straight lines at an angle to one another. It is stated that bv this construction n on-uniform radiation of the various frequencies is corrected by variation of the radial rigidity of the diaphragm. The angle of the cone at the apex 2, Fig. 1, may be comparatively small and then gradually enlarged until at the rim 3 it is 180‹ or substantially so. Several examples of coned diaphragms are described, such as a simple cone, Fig. 6, smooth for a portion of its surface from the apex and then fluted to its edge, a simple cone, with an annular surface at its outer edge, an arrangement of two cones apex to apex, Fig. 5, and a cone, with an annular edge, enclosed in a casing with a variable opening at the back. Other examples of diaphragms comprise a plane surface of circular outline having concentric corrugations and curved ribs radiating from a solid centre. The ribs may be of cardboard of V-section, and the covering material of paper corrugated with fine corrugations concentrically. A further form of diaphragm, Fig. 9, is in the shape of a strip having a V-section, the angle of which increases continuously or in steps from one end to the other, the energy being delivered at one edge and travelling in a parallel path across the diaphragm. The outline of the various diaphragms may be circular or oval, or may have a circular or oval base in the case of coned diaphragms. The diaphragms are made of any stiff material, such as metal or paper, or may be made of layers of material of different quality. Coned diaphragms are constructed of thin stiff paper cemented with photographic mounting tissue to a fine silk or blotting paper in a hot press. The diaphragms are suspended freely by elastic bands 8, Fig. 4, attached at several points or by a ring of rubber, linen, &c. Preferably they are suspended by mass action, i.e. there is provided round their periphery a heavy annular ring 7 connected to a fixed ring 6 loosely suspended from a rigid framework.
Patent GB-1278311-A (GB)
Title: Improved automatic analyzer
Inventor: FAHNRICH VLADIMIR
IPC: G01N1/38
Filed: 1969-06-05
Abstract: 1278311 Automatic analysis CKD DUKLA NARODNI PODNIK 5 June 1969 [3 Oct 1968] 28434/69 Heading B1X [Also in Division G1] In an automatic analyser in which predetermined quantities of a test sample flowing through container 60 and at least one reagent from containers 48, 49 or 50 are admitted to a mixing chamber 65 under pneumatic control and the mixture is subsequently transferred to an analyzing chamber 81 in which the analysis is performed, the mixture in the analysing chamber is replaced by a subsequent mixture either by emptying the analysing chamber by means of a pneumatic pulse which acts upon the mixture and discharges it into an overflow tube and refilling the chamber with the subsequent sample, or by adding the subsequent sample to the analysing chamber to cause the displacement of the mixture already in the chamber into the overflow tube, and further pneumatic devices are provided for emptying the mixing device and for controlling the flow into the mixing device from the separate measuring devices. The control of fluids by application of pressure through lines 74 and vacuum in line 55 is described with reference to Figs. 1-3 (not shown). In the analysing chamber light from a lamp 108, Fig. 4, is passed up through a sample to a photocell 100 the supply of samples being controlled by gas pressures in pipe 55 and the reagent cells 56-58 feeding the mixing cell being controlled by pressure in pipes 52-54 and mixed with the, sample in container 65 by gas from pipe 77 bubbling up therethrough. Reagent containers 48-50 are floated in a tank 60 to maintain their levels. A modified automatic analysing arrangement uses bellows controlled by a motor driven cam to perform the test cycles and in it the container flotation tank is replaced by individually pivoted and counterbalanced containers which are shaped to maintain the constant level.
Patent GB-357774-A (GB)
Title: Improvements relating to electron discharge tubes
IPC: H01J17/04
Filed: 1930-09-23
Abstract: 357,774. Thermionic valves. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13A, Emmasingel, Eindhoven, Holland. Sept. 23, 1930, No. 28469. Convention date, March 4. [Class 39 (i).] A rectifying or other discharge tube having an incandescent cathode and an anode 1 shielded by a screen 5 is provided with an end or bottom wall 6 to the screen to shield the back of the anode. The wall 6 is provided with an aperture through which the insulated anode stem passes to which the screen may be attached by a flange 7. The screen may be cylindrical and the sides may merge gradually into the rear wall as shown in Fig. 2. An annular space 8 may be formed in the anode as shown in Fig. 1 and the screen may be attached to the anode stem by cement, friction, or by a clamping ring round the flange 7. The screen may be perforated and made of insulating material or metal gauze &c.