baber/WOPTO huggingface dataset:
Patent GB-384178-A (GB)
Title: Improvements in or relating to radio and other carrier wave receivers
IPC: H03G3/22
Filed: 1932-05-02
Abstract: 384,178. Valve amplifying circuits- SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. May 2, 1932, No. 12624. Convention date, May 2, 1931. [Class 40 (v).] The gain in a high-frequency amplifier is automatically controlled by rectified locally generated auxiliary oscillations which are controlled by the received carrier frequency amplitude. The Figure shows a generator 3, the bias of which is controlled by the detector 2, supplying the grid bias to a high-frequency amplifier 1 through a rectifier 15. The arrangement avoids galvanic coupling between the anode circuit of the regulating stage and the grid circuit of the controlled stage and gives. an intermittent control on the principle of a Tirill regulator.
Patent GB-180875-A (GB)
Title: An improved implement for unfastening knots in string, cord or the like
IPC: B26B13/06
Filed: 1921-05-03
Abstract: 180,875. Watts, W. W. May 3, 1921. Cigar cutters. - An instrument for untying knots in string, cord, &c. comprising a pair of scissors having the blades a, b, furnished at the free ends with roughened or serrated jaws a<3>, b<3>, which are used to grasp a part of the knot to be untied, has curved cutting edges a<5>, b<5> forming a cigar cutter. One or both blades may be formed with a recess f having a roughened or serrated match-striking surface. A pin-and-slot connection d, e limits the outward movement of the blades and in the fully-opened condition the space between the extreme ends of the jaws is equal to a unit of length measurement, e.g. an inch: or the space between the outsides of the blades at their free ends or the space or spaces between the insides or outsides of the handle rings a<2>, b<2> or both, may, in the fully-opened condition equal a measurement or measurements of length.
Patent GB-509177-A (GB)
Title: Improved spring
IPC: B62K25/24
Filed: 1938-04-28
Abstract: 509,177. Resilient mountings ; spring forks. GETEFO GES. FUR TECHNISCHEN FORTSCHRITT. April 28, 1938, No. 12658. Convention date, April 29, 1937. [Class 108 (iii)] [Also in Group XXXI] A rubber spring 1 bonded to metal plates 2, 3 is arranged to absorb both shear and tension stresses by relative movement of the plates parallel to and away from one another. The rubber block 1 is recessed at the sides to produce a reduced cross-section at the centre as disclosed in Specification 464,621 and the plate 3 is bolted at 20, 21 to a sprung part 19 of the chassis frame. The plate 2 is secured at 6, 7 to a wheel fork 10 pivoted to the part 19 by links 11, 12. As shown, the proportions of the shear and tension stresses of the rubber of the total force absorbed is about equal and as the load increases the tensile portion becomes smaller and the shear portion greater. The springing thus has a linear characteristic in the high load ranges, the characteristic may be arranged to fall at the high load ranges if desired. By the use of guides &c., the proportions of the shear and tension stresses absorbed may be varied.
Patent GB-234127-A (GB)
IPC: B65H45/14
Filed: 1925-05-15
Abstract: 234,127. Toronto Type Foundry Co., Ltd., (Assignees of Trautman, W. G.). May 15, 1924, [Convention date]. Folding paper. - In a paper-folding machine employing buckling folders and in which the stops on one of the buckling-plates is inaccessible for adjustment, means are provided for adjusting the stops from an easily accessible position. The sheets pass from folders b, c, Fig. 1, to a conveyer d feeding the sheets to-buckling folders e - - j, from which the sheets are delivered to a conveyer t. The stops i<1> on the buckling plate i are adjusted by means of thumb-screws i<11>, but the stops j<1> on the plate j situated beneath the folders b, c and conveyer d are inaccessible for such adjustment. These are attached to a transverse bar k pivoted to bars k<1>, Fig. 3, fixed to rods l, l<1> passing through a fixed member n of the frame and adjustably secured thereto by thumb-screws l<11>. The bars l, l<1> are provided with graduations on their upper edge to aid in the adjustment of the stops j<1>.
Patent GB-1450248-A (GB)
Title: Process for the contininuous preparation of carboxylic acids
IPC: C07C51/245
Filed: 1974-03-22
Abstract: 1450248 Carboxylic acids HENKEL & CIE GmbH 22 March 1974 [23 March 1973] 12811/74 Heading C2C Carboxylic acids (at least 5C) are prepared in a continuous process by the oxidation of vicinal diols (at least 6C) in the presence of 0À01-0À5 mol. percent of a heavy metal catalyst in which a mixture of catalyst and diol are continuously introduced to a mixture of diols contacted with oxygen containing stream of gas at between 40 and 200 C. Aliphatic vicinal diols (6-18C) may be the starting substances and a cobaltous salt used as the catalyst with if necessary a solvent such as a carboxylic acid or a polar or nonpolar solvent. Bubble column reactors may be used. Examples describe the oxidation of non-terminal diols (chain lengths C 14 -C 18  in a n-decanoic acid solvent with cobaltous laurate catalyst.
Patent GB-783125-A (GB)
Title: Improvements in or relating to devices for use in washing, ironing and steaming ties
IPC: A47G25/76
Filed: 1955-05-04
Abstract: 783,125. Necktie formers. TEGELAAR, G. May 4, 1955 [May 24, 1954; Nov. 5, 1954; Dec. 21, 1954], No. 12912/55. Class 141 A necktie former comprises a flat, substantially triangular member formed of fine-meshed gauze-fabric of rigid threads, e.g. metallic wire, spun glass fibres, spun plastic filaments, &c. The edges of the gauze fabric may be turned over either singly or doubly, as in Fig. 5, or alternatively, the long edges may be provided with metal strips 4 on the underside, as in Fig. 3. A protective cap 14, Fig. 4, consisting of a rhombic or round metal plate, covers the narrower end of the member 13. One or both surfaces of the gauze-fabric may also be covered with a textile fabric.
Patent GB-276081-A (GB)
Title: Improvements in electromagnetic relays particularly for railway signalling systems
IPC: B61L13/04
Filed: 1926-05-20
Abstract: 276,081. Automatic Telephone Manufacturing Co., Ltd., and Tarrant, R. W. May 20, 1926. Electromagnetic switches, latching and unlatching; contact-making relays.-A relay for railway signalling and like systems, and having an armature acted on by a non-polarized electromagnet and by a polarized device with neutralizing windings, requires a strong current in the right direction to operate it and a comparatively weak current to hold the armature attracted, the weak current not being able however to pick up the armature. The coils 1, 2, Fig. 1, of the non- polarized electromagnet are mounted on cores 3, 4 connected by a yoke 5, and a permanent magnet 8 has soft iron cores 10 attached with neutralizing windings 11, the cores carrying polepieces 12 eccentrically mounted for adjustment. The armatures 6 may be pivoted at the rear and carry its contacts in the manner described in Specification 283,649. Fig. 2 shows a track circuit arrangement restoring a signal to danger after passage of a train, the controlling lever requiring to be restored to normal and again reversed before the signal can again be moved to clear. Operation of the signal lever 27 makes in it; forward movement only a passing contact at 28, current then flowing through rail section 23, the energizing windings 1. 2, and the neutralizing windings 11. Contacts 30 are thus closed, and the signal 26 is moved to clear. The lever 27 in its end position 31 inserts a resistance 32 in circuit, the current being decreased but the relay being maintained operated. A train entering at 23 short-circuits the relay and the signal moves to danger. After passage of the train, the same weak current still flows through the relay, but operation of the relay is prevented by the action of the permanent magnet 8. The two sets of windings may be energized from separate sources.
Patent GB-1501985-A (GB)
Title: Blood pressure measuring apparatus
IPC: A61B5/022
Filed: 1975-03-27
Abstract: 1501985 Measuring blood pressure SYBRON CORP 27 March 1975 [19 April 1974] 13063/75 Heading A5K [Also in Division G1] Apparatus for measuring systole and diastole comprises a manometer that has two pressure indicating pointers each of which can be immobilized by a push button such that upon detection of the systole and diastole korotkoff sounds a respective one of the pointers can be fixed. The operator need not then look at the manometer during measurement. Pumping on cuff 1, Fig. 1 with bulb 8 causes a rod 22, Fig. 2, to rise whereby a connected shaft 24 rotates against the bias of spring 26 and a pointer 13 reaches its high point. An abutment 27 on the pointer 13 causes simultaneous movement of a pointer 12 supported on a spring biassed sleeve 28 that is rotatable on shaft 24. When push button 11 is initially operated it opens a first bleed valve 15 in bleed 2, Fig. 1 by virtue of the operation of a cam 37 and its first follower 38. When systole is detected the bottom 11 is pushed again. This causes cam 32 to move follower 33 and brake shoe 30 to arrest the sleeve 28. The pointer 12 is thereby fixed but pointer 13 continues to rotate. The button 11 also causes cam 37 to open valve 18 whereby bleed increases until diastole is detected. The button is pushed again to arrest the pointer 13 via brake shoe 31 and open third valve 19 whereby the cuff is depressurized quickly. The button may be pushed a fourth time to restore the cams to their zero position.
Patent GB-1301617-A (GB)
IPC: C07C17/278
Filed: 1971-05-04
Abstract: 1301617 Di-iodo-fluoroalkanes THIOKOL CHEMICAL CORP 4 May 1971 [9 July 1970] 13079/71 Heading C2C Telomers of Formula I (CF 2 CF 2 ) m I, in which n is 2 to 10, are prepared by reaction of 1,2-diiodo-tetrafluoroethane with tetrafluoroethylene in the presence of a free radical catalyst, Catalysts specified are di-t-butyl peroxide, t-butyl-hydroperoxide, di-isopropyl percarbon@ ate,t-butyl-perbenzoate, acetyl peroxide, lauroy peroxide, benzoyl peroxide and azobisisobutyronitrile.
Patent GB-150051-A (GB)
Title: Improvements in or relating to sidecars for use with motor cycles, and the like
IPC: B62K27/06
Filed: 1919-05-24
Abstract: 150,051. Coventry Acme Motor Co., and Hemingway, G. H. May 24, 1919. Bodies.-A side-car body has a boot or rear extension 13.
Patent GB-1080918-A (GB)
Title: Improvements in electrolytic apparatus
Inventor: EVANS DAVID JOHNSON
IPC: C25B9/17
Filed: 1965-03-27
Abstract: <PICT:1080918/C6-C7/1> In a cell of the kind described in Specification 932,945 comprising a plurality of electrodes 18, each consisting of a thin sheet of titanium having a coating of platinum on one face thereof and mounted parallel to but spaced apart from one another and inclined at an angle to the vertical with the platinum coated face of each electrode uppermost; insulating blocks 19, 20 positioned adjacent to the end electrodes of the stack, and lead rods 22, 23 passing through said insulating blocks to be electrically connected to the end electrodes, the end electrode of the stack which in use is connected to the negative pole of the potential supply is spaced from the end face of the adjacent insulating block 19 sufficient to permit electrolyte to flow between the opposed faces of the end electrode and the block when the cell is in use, thereby preventing hydrate deposited upon the electrode extending to the edge of the block.  The gap between the electrode and the block may be similar to that between adjacent electrodes in the stack.  The cell shown has electrolyte inlet 14 and outlet 15, and a vent 16.
Patent GB-726733-A (GB)
Title: Improvements in carding machines
IPC: D01G15/20
Filed: 1953-05-11
Abstract: 726,733. Carding engines. ROVIRO, J. V. May 11, 1953 [May 16, 1952], No. 13114/53. Class 120 (1) A carding machine is provided with a multiple feed table member 10, Fig. 1, which extends throughout the breadth of the machine and the external surface of which is formed by the union of three or more tables of different proportions, so that by rotating the member 10 the table surface most suitable to the length of fibres to be worked can be utilised. Each table surface comprises a concave portion adapted to the curvature of the feed roller 5, and a plane portion 11, 12, 13, 14, of different dimensions in each case, for co-operation with the licker-in 7. Member 10 is rotatably adjustable about a core 15 bolted to the frame 1 through slots 18 as to be displaceable towards and away from the licker-in. Feed roller 5 rests freely on the concave table surface and is pressed thereagainst by weighting levers 22, Fig. 3. The feed roller is located by arms 20 pivoted at 21, and is driven through the usual transmission shaft with the interposition of a pinion or pinions which permit small displacements of the roller. The roller 2, Fig. 1, which unwinds the sheet of fibres from a roll 4, is driven from roller 5 via pinions 25, 26, 27, 28, pinion 26 being carried on adjustable levers 30.
Patent GB-278035-A (GB)
Title: Improvements in music, book and like stands or rests
IPC: A47B23/00
Filed: 1926-05-25
Abstract: 278,035. Deans, C. May 25, 1926. Reading desks and music stands.- A number of resilient flexible strips 7, clamped together at one end are secured on each side of a central rib 6 and are adapted to be opened into fan-like formation. The outer ends of the strips 7 are connected by pairs of similar strips 9. Pivoted ledges 1, 2 to carry the music &c. are connected at their outer ends to the strips 9 and are joined by pivoted links 12 to a slide 13 on the central rib, a catch catch, the strips collapse automatically 14 on which engages the slide to hold the device open. On releasing the catch, the strips collapse automatically and lie parallel to the central rib.
Patent GB-850910-A (GB)
Title: Improved polymerization catalyst
IPC: C08F10/00
Filed: 1959-04-17
Abstract: a -Olefines of more than 2 carbon atoms may be homopolymerized, or a -olefins, generally, copolymerized by means of a catalyst comprising a partially reduced Group IVA, VA, VIA, or VIII transition metal halide which has been dry-milled prior to activation with an organoaluminium compound.  The transition halide is preferably TiCl3, but TiCl3 cocrystallised with AlCl3 may be used, or generally cocrystallisates of the transition halide with a Group II or III halide; organoaluminium compounds specified are Et3Al,Pr3Al, isoBu3Al and the respectively corresponding dialkyl aluminium chlorides. Specified monomers are propylene, butene-1, hexene-1, heptene-1, octene-1, decene-1, dodecene-1, hexadecene-1 and octadecene-1; specified copolymerisable reactives are ethylene/propylene, propylene/butene-1 and ethylene/butene-1.  The polymer is isolated by use of a C1-8 alkanol such as isopropyl or n-butyl alcohols, preferably in combination with a chelating agent such as acetyl acetone or diacetyl.  In examples, xylene is used as solvent for polymerization.ALSO:A partially reduced Group IVA, VA, VIA or VIII transition metal halide is dry-milled prior to activation with an organoaluminium compound to form a polymerisation catalyst.  The transition halide may be a halide of Ti, Zr, Th, V, Ta, Cr, Mo or W, but is preferably TiCl3; it may be cocrystallised with a Group II or III metal halide, e.g. cocrystallised TiCl3-AlCl3. The milling may be pebble-milling, e.g. with flint pebbles, or ball milling using steel balls.  Specified organoaluminium compounds are Et3Al, Pr3Al, iso-Bu3Al, Et2AlCl, Pr2AlCl and iso-Bu2AlCl; organoaluminium compounds having hydrocarbon radicals substituted by, e.g. alkoxy, organic nitrogen or sulphur groups may be used. Activation of the transition halide is effected in an inert diluent; aliphatic, aromatic and halogenated hydrocarbons may be used, xylene being preferred.  Examples refer to the treatment of (1) TiCl3 formed by reduction of TiCl4 with hydrogen, (2) TiCl3.0.33 AlCl3 formed by aluminium reduction of TiCl4 and (3) TiCl3.0.2 AlCl3 formed by reduction of TiCl4 with Ti and Al.
Patent GB-1458432-A (GB)
Title: Method of titration and apparatus thereforp
IPC: G01N30/00
Filed: 1974-03-26
Abstract: 1458432 Titration producing gas stream for analysis VYZKUMNY USTAV ORGANICKYCH SYNTEZ 26 March 1974 [26 March 1973] 13274/74 Heading G1B A method of titrating a solution, for the volumetric determination of compounds of organic or inorganic character and functional groups therein, comprises gradually feeding measured amounts of a reagent to a batch of predetermined volume of the solution in a reaction zone so that a gaseous reaction product gradually evolves in the reaction zone, continuously passing a carrier gas into contact with the gradually evolving gaseous reaction product in the reaction zone to create a composite gaseous flow from the reaction zone, and continuously measuring the volume of gaseous reaction product in the composite gaseous flow to enable determination of the end-point of the reaction. In Fig. 1, the carrier gas, which may be hydrogen or nitrogen, passes from the pressure vessel 1 through the needlepoint valve 2 into a comparative cell of the thermic conductive sensor 3 and then into the small glass reactor 4, which is heated by heating block 5. Into the reactor 4, a titration solution of a reagent is gradually introduced in doses from the titration device 6. The resulting gaseous reaction product is conducted through the absorber 7, in which non- gaseous substances are absorbed, to a second cell of the thermic conductive sensor 3. The sensor 3 is connected to a recording device 8.
Patent GB-101551-A (GB)
Title: Improvements in or relating to Digging Machines.
Inventor: CHRISTENSEN HANS ALBERT
IPC: A01B13/00
Filed: 1916-09-19
Abstract: 101,551. Christensen, H. A. Sept. 20, 1915, [Convention date]. Diggers; clod-crushing appliances. -A digging-machine comprises a rotating drum 1 provided with a number of pairs of shovels 2, the pairs being spaced on the periphery of the drum slightly behind one another proceeding from one side to the other of the drum. Each shovel consists of a digging-blade with side walls connected by a cross-shaft 4, the opening at the back of the shovel being closed normally by a plate 6 in which the shaft 4 is pivoted, the plate 6 itself being pivoted to a shaft 7 extending between the walls of the drum compartment in which the shovels work. A spring 8 presses against the plate 6, thus forcing the shovel out into operative position for digging. An arm 9, provided with a dog 10 and roller 14, is pivoted on, and is adapted to turn, the shaft 4 through a lost-motion connexion controlled by a powerful spring when the dog 10 is pressed back by engagement with a roller 13 mounted on the rigid shaft 12, which extends through the drum. The arm 9 is also provided with a forwardly-extending arm 17 passing under a rod 18 pivoted at 19 and provided with a roller 20 which is adapted, during the operation of digging, to engage a cam 21 and thus to cause the shovel to be held firmly against its bottom plate 6. After the shovel has begun to swing out of the digging position away from the plate 6, the roller 14 on the arm 9 engages a cam 15 on the shaft 12 whereby the movement of the shovel is extended so far that the earth can slide out of the rear opening into a box-like device 34. The shovel is scraped clean on its internal surface by a cleaner 23 carried by a spring-pressed arm 21 and reciprocated by the engagement of a roller 26 on this arm with a spring-held extension 27 of a cam 28 on the shaft 12. The exterior of the shovel is kept clean by a brush 54. A rake-like harrow situated behind the digging-apparatus is provided with blades which are reciprocated across its teeth, thus cutting-up the surface layer of the dug earth. The shaft 12 on which the drum is carried may be supported in bearings the height of which is adjustable by means of a hand-wheel.
Patent GB-495330-A (GB)
Title: Improvements in or relating to electron discharge devices for use in television or like systems
IPC: H01J29/02
Filed: 1937-05-10
Abstract: 495,330. Cathode - ray tubes. FERNSEH AKT.-GES. May 10, 1937, No. 13321. Convention date, May 9, 1936. [Class 39 (i)] In a cathode-ray tube for television provided with a mosaic screen from which secondary electrons are liberated by a scanning beam to give an image signal the electrons so liberated are passed to an electron multiplier arranged within the tube. In the arrangement shown photo-electrons from the screen 2 are collected by an annular electrode 6 on the wall of the tube 1 and secondary electrons liberated by the scanning beam are collected by a perforated or thin sheet metal electrode 8 and passed through a multiplier 13 in a recess 7 in the wall of the tube to an output electrode 14. Separate coatings 3 and 4 on the inside of the tube are maintained at the potential of the gun anode and at a slightly lower potential respectively. The multiplier is surrounded by a screening electrode 15 connected to the electrode 4. The multiplier may be of the type consisting of a number of perforated plates, as shown, or of the type consisting of two electrodes to which alternating potentials are applied. A number of multipliers and output electrodes may be provided, or the multiplier may be in the form of a ring surrounding the screen.
Patent GB-701228-A (GB)
Title: Improvements in and relating to the production of catalysts
Inventor: PITTWELL LAWRENCE ROY
IPC: C07B61/00
Filed: 1951-06-06
Abstract: Hydrogenation of unsaturated hydrocarbons (e.g. ethylene to ethane and styrene to ethyl benzene), hydrogenation of aldehydes and ketones, dehydrogenation of alcohols, reduction of nitrobenzene to aniline, and reductive amination of carbonyl compounds (e.g. acetone to isopropylamine) are carried out in the presence of a copper-containing catalyst produced by activating a copper-silicon alloy, containing less than 87.5 per cent. by weight of copper, by treatment, prior to use in the reaction, with steam or water at a temperature above 200 DEG C., to remove or to convert to silica substantially all of the silicon (see Group III) Powdered catalyst may be used in the fluidised state.ALSO:Copper-containing catalysts are produced by activating a copper-silicon alloy, which has a copper content of less than 87.5 per cent. by weight, by treatment, prior to use in a catalytic reaction with steam or water at a temperature above 200 DEG C., to remove or to convert to silica substantially all of the silicon. The alloy treated may be a powder of particle size between 60 and 200 microns, or granules of 1/16 - 1 inch; the copper content is preferably greater than 50 per cent. (e.g. 70-85 per cent.).  Preferably the treatment is carried out at about 300 DEG C. and may be preceded by extraction with caustic alkali at 20-110 DEG C. to remove free silicon.  A further extraction with caustic alkali may be made after treatment with steam, to remove the silica formed. The catalysts are suitable for the hydrogenation of unsaturated hydrocarbons (e.g. ethylene to ethane or styrene to ethyl benzene), the hydrogenation of aldehydes or ketones, the dehydration of alcohols, the reduction of nitrobenzene to aniline, or the reductive amination of carbonyl compounds (e.g. acetone to isopropylamine); the powdered catalyst may be used in the fluidized state.  Reactivation of the catalysts may be effected by treatment with oxygen or air and reduction at an elevated temperature, or by a further treatment with steam or water.
Patent GB-384547-A (GB)
Title: Process for filtration and sterilisation of liquids
IPC: B01D39/20
Filed: 1932-05-10
Abstract: A compound of a bactericidal metal is incorporated with the paste used for making porcelain and like filter tubes or plates, the compound being reduced on firing and the metal deposited in the pores of the element.  In one example silver chloride is used, and in another a mixture of silver nitrate and sodium chloride.ALSO:A compound of a bactericidal metal is incorporated with the paste used for making porcelain and like filter tubes or plates, the compound being reduced on firing and the metal deposited in the pores of the element.  In one example silver chloride is used and in another a mixture of silver nitrate and sodium chloride.