baber/WOPTO huggingface dataset:
Patent GB-571401-A (GB)
Title: An electrode arrangement suitable for resistance welding
IPC: B23K11/30
Filed: 1944-01-19
Abstract: 571,401. Welding electrodes. ENGLISH ELECTRIC CO., Ltd., NELSON, H. G., and INSTONE, H. Jan. 19, 1944, No. 1029. [Class 39 (iii)] [Also in Group XXII] In an electric resistance heating or welding machine of the kind in which the electrode and and work are repeatedly pressed together for a succession of operations the electrode is covered by the conducting material movable step by step across the electrode between successive operations, the material forming the actual contact surface. The effect of a repeatedly renewable working tip for the electrode is thus obtained and picking up of films of oxide by the electrode from the surface of the work is avoided. The thin material which may consist of a thin tape 7 of copper or like metal or of a coated metal may be attached to spools 1, 2, carried by the movable welding head 6 and unwoven from one on to the other after passing over the channelled face of the electrode 5 and over guide rollers 8, 9. The tape may be traversed step by step over the face of the electrode during the upward movement of the head only and gradually reducing the greater part of this movement. For this purpose the head carries a rack 11 engaging a pinion 12 or a shaft which also carries a larger pinion 13 engaging a rack 14 linked to the member 10b of the free wheel device, the other member 10a of which is fixed to the spindle 4 carrying the spool 2. The arrangement for the lower stationary head 15 is an inversion of that for the upper head. In order to allow for the movement of the head 6 and for vertical adjustment of the lower welding head with its arm, the spindle 4 drives the lower spool spindle 16 through the rocking shafts 17, universal joints 18, longitudinally extensible couplings 19, bevel gear 20 and vertical spindles 23 connected by a coupling 24 incorporating electrical insulation. When the complete length of tape has been used once the spools can be removed from the spindles and put on again the reverse way round. The upper electrode may be stationary and the lower electrode movable.
Patent GB-482007-A (GB)
Title: Improvement in scanning current generator
IPC: H04N3/24
Filed: 1937-01-13
Abstract: 482,007. Valve generating circuits. FARNSWORTH TELEVISION, Inc. Jan. 13, 1937, No. 1068. Convention date, Feb. 10, 1936. [Classes 40 (iii) and 40 (v)] Saw-tooth waves are produced by passing relatively short, separated pulses of current through an integrating circuit 13, 15 in series with a resistance 11. The pulses are generated by a blocking oscillator 1 and cause a drop of voltage across the condenser 15, on which is superposed the drop across the resistance 11. When the current ceases to flow, the condenser discharges along a curve which is slightly convex upwards. This voltage is applied unequally to asymmetrically connected valves 35, 36, which have a grid-plate characteristic curved in opposition to the discharge curve. Final connection is effected by small condensers 49, 50 across resistances 31, 32. The oscillator is synchronized through a small additional winding 51 in its transformer 5, 10. Television receivers, Fig. 3. Received synchronizing signals are used to eliminate return lines in the scanning. The received signals are applied by an output power valve 72 to the grid of a cathode-ray tube 75, and the previous amplifier 70 is so phased that the synohronizing signals consist of negative swings which erase the return lines. In the high-frequency scanning unit 83, the saw-tooth generator is connected to the output valve by a simple blocking condenser 30 and grid resistance 32, Fig. 5 (not shown). The Specification as open to inspection under Sect. 91 comprises also generating the impulses by external mechanical means, Fig. 3 (Cancelled) (not shown). This subjectmatter does not appear in the Specification as accepted.
Patent GB-308850-A (GB)
Title: Improvements in and relating to devices for fixing a hose or other similar device toa pipe by means of a band
IPC: F16L33/14
Filed: 1928-01-12
Abstract: 308,850. Heck, L. Jan. 12, 1928. Clips, band, - In a hose-pipe clip of the type in which a band A is tightened by rotation of a slotted bolt or pin D into which one end of the band is inserted and about which the band is wrapped, the band is led over a guide roller C so that a portion of the band is in frictional contact with - the band already on the bolt D. The cheeks B in which the bolt D and roller C are mounted are connected by a single bar B<1> remote from the bolt so that tension of the band tends to press the roller D towards the hose-pipe J. One end of the band is passed round the bar B<1> as shown. To give additional safeguard against accidental slackening of the band the head D<3> of the bolt D is sufficiently large to bear against the hosepipe.
Patent GB-264522-A (GB)
Title: Improvements in machines for setting mechanical time fuses
IPC: F42C17/00
Filed: 1927-01-14
Abstract: 264,522. Junghans, O. Jan. 15, 1926, [Convention date]. Projectile fuzes, apparatus for setting.-An apparatus is provided with means for setting several mechanical time fuzes simultaneously to slightly different times of action, which is useful in anti-aircraft work. As shown, three fuze-setting devices are provided, one, horizontal, and two, 6<1>, 6<2>, vertical. Each device has a pair of pawls 7, 8 for engaging respectively the usual notches in the fuze body and rotatable timing dome of the fuze. The pawl 8 is mounted on a non- rotatable member 5 and the pawl 7 on a rotatable member 2, so that the pawl 7 can be set to an angle relatively to the pawl 8 according to the time setting desired. The member 5 is held against rotation by means of a disc 35 feathered to it and keyed by a pin 36 on the body 1 of the apparatus. The member 2 of the horizontal setting device is provided with a hand-wheel 3 and with a peripheral worm wheel 14 in mesh with corresponding worm wheels 14<1>, 14<2> on the rotatable members of the vertical setting devices. The setting of the handwheel 3 is indicated by a pointer 4. The two members 2, 5 of the horizontal setting device can be moved bodily together by means of a handle 38, which turns a spindle 37 in screw engagement with the shaft-like part of the member 5. Such an axial movement of these members causes by means of the worm wheels 14, 14<1>, 14<2> a rotation in opposite direction of the rotatable members of the vertical setting device. In this way, the time settings of the vertical devices are made slightly longer and shorter respectively than the setting of the horizontal device. For locking the members 2 and 5 together, a roller clutch is provided comprising rollers 15 arranged in wedge-like recesses between the members 2, 5 and carried by a pair of discs 17, 18 controlled by springs and a handle 21. The handle 21 is on a shaft 22 provided with pinions 23, 29 for the control of the clutches of the horizontal and vertical setting devices respectively. The pinion 23 is geared through pinions 24, 25, 26 to a spindle 27 provided with a flat end 28, which fits between parts of the two discs 17, 18 of the horizontal setting devices whereby they can be rotated in opposite directions to clutch or unclutch the rollers. The other pinion 29 is in mesh with a pinion 30 on a spindle 31, which carries cams 32 coacting with levers 33, 34 for rotating the discs 17. 18 of the vertical setting devices in opposite directions.
Patent GB-974945-A (GB)
Title: Improvements in apparatus and method for determining steam purity
IPC: G01N27/06
Filed: 1962-01-12
Abstract: 974,945. Determination of the purity of steam. T. E. LARSON, and R. W. LANE. Jan. 12, 1962 [Sept. 13, 1961], No. 1238/62. Heading B1B. The purity of steam is measured by introducing the steam from tube 17 into chamber 12 where the steam condenses on coil 25, collecting the condensate in pool 31 which is maintained at the boiling point so that substantially all the carbon dioxide is expelled from the water, withdrawing water from the pool through pipe 32 and measuring its conductivity in cell 34 before leading it to cooler 58, passing the water at a temperature of 30-40 ‹C. through ion-exchange resin 44 whereby cations such as NH4<SP>+> are replaced by hydrogen ions, and finally passing the water through hot pool P to eliminate the last traces of gas before the conductivity of the water is measured by means of cell 51. The gases are discharged from the apparatus through vents 30 and 50. The conductivity of the water is measured at a temperature of about 98À5 ‹C. by cells 34 and 51. The steam supplied to the apparatus through pipe 17 is divided into two streams, which flow through coils 18 and 21, before being conducted in the direction of condenser 25 by nozzles 19 and 22. Coils 18 and 21 maintain the water in pools 31 and P at the boiling point. The amount of steam fed to the two coils is controlled by valve V in such a way that some of the steam condenses in coil 21. Cooling-water is introduced into condenser-coil 25 through inlet 63 ; after leaving the condenser this coolant flows through cooler 58, and is then discharged from the apparatus via temperature-regulator 60, which controls valve TV in inlet-line 63. The resin is preferably in granular form, so that it can be readily replaced by fresh resin, when necessary.
Patent GB-399361-A (GB)
Title: Improvements in or relating to display or show stands particularly for jewellery andthe like
IPC: A47F7/02
Filed: 1933-01-14
Abstract: 399,361. Displaying jewellery &c. GRIFFITHS, A., 33, Frederick Street. Birmingham. Jan. 14, 1933, No. 1287, [Class 3 (ii).] In a display stand for jewellery and the like, a display plate is provided with a hole in which is mounted a spring-pressed pin having a slot for holding an article which is gripped between the wall of the slot and the plate. As shown, a number of rings 14 are held on a plate 1 by spring-pressed pins 7 engaging in flanged ferrules 5 located in holes 4 the rings being received in slots 10. A split ring 12 engaging in a groove in the pin prevents the pin moving out of the ferrule 5 when no ring is carried thereby. The plate 1 is mounted in a frame 2 pivotally mounted on the support 3.
Patent GB-995105-A (GB)
Title: Improvements in or relating to electric switches
Inventor: SMITH KENNETH GRAHAM
IPC: H01H23/16
Filed: 1963-01-11
Abstract: 995,105. Mechanical switches, without quick action. N.S.F. Ltd. Feb. 12, 1964 [Jan. 11, 1963], No. 1341/63. Heading H2B. A switch in which an insulating member 20 carrying a movable contact 5 is moved in a housing 11 by means of a dolly 3 is characterized in that detent means 22 are formed on adjacent surfaces of the member 20 and cover 2 and that springs 27 act to urge the detent means together and also moving contact 5 into engagement with contacts 7, 8, 9, formed in the base of the housing. The detent means serve to locate the member 20 and the contacts 7, 8 have a projection on them to make them longer than the contact 9 so that in the centre position contact 8 is connected to both contact 7 and contact 9. Alternatively, contacts 7, 8 need not be provided with the projections whence a two-way switch with central " off " is provided. The switch may be one pole or two pole and the centre position may be omitted.
Patent GB-553646-A (GB)
Title: Improvements in and relating to protective systems for electric cables
IPC: H01B7/32
Filed: 1942-02-02
Abstract: 553,646. Cables. POTTER, H. S. Feb. 2, 1942, No. 1354. Convention date, April 29, 1941. [Class 36] [Also in Group XXXVII] Flexible cables suitable for mines are protected against mechanical damage by enclosing them in rubber hose so as to provide a series of spaces or channels in which pressure-fluid such as air or gas, for example carbon dioxide which has good fire-extinguishing properties, is passed, and the cable-controlling switch is adapted to be released by means responsive to a lowering of the pressure by leakage or fracture of the hose. In Fig. 1, the cable 2 is covered by a hose 1 the sections of which are united by coupling-members 3 from which an inlet pipe 4 is taken to pressureresponsive means 5 which is connected in turn to a container 6 and normally holds the handle 8 of the control switch 7 closed. The means 5, Figs. 3 and 4, comprises a diaphragm 16 and a plunger 51 normally urged against spring-action to engage a hole 52 in handle 8, the diaphragm being exposed on one side to atmosphere at vents 50 and on the other to the pressure admitted from the container at 41 through ports '23 and an aligned annular groove 32 in a valve 22 and passed out at 43 to the cable through ports 24 and groove 33. By pushing in the valve 22 the grooves may be aligned with exhaust ports 25, 26 so releasing the switch. When a leakage occurs in the cable, an extension 53 engaging a member 37 fast on the valve 22 pushes back a plunger 54 which is connected by a Bowden wire 58 with a valve 60 that is caused to open and supply carbon dioxide to the damaged part of the cable so as. to minimize risk of fire. When the valve 22 is manually operated to empty the cable of gas the member 37 is moved clear of extension 53 and between guides 38, 39. In Fig. 5, a four-core cable has the wires 9 enclosed in a rubber body 10 of such section as to leave four separate gas channels 11 which unite in an annular space in the coupling 3. In modifications, however, there may be four separate rubber-insulated wires in an outer covering, Fig. 7 (not shown), or a circular body. in which the insulated wires are embedded may be spaced from the covering by a helical wire, Figs. 8, 9 (not shown), or a body of similar shape to 10 in Fig. 5 may have a central air duct and a plurality of radial ducts leading therefrom to the channels 11, Fig. 10 (not shown).
Patent GB-814200-A (GB)
Title: Foam inhibition in oils
IPC: C07F7/18
Filed: 1956-01-16
Abstract: The tendency of an oil to foam is inhibited by adding to the oil a homopolymer derived from a silane monomer of formula <FORM:0814200/III/1> wherein R is a C1-C18 monovalent hydrocarbon group comprising an alkyl, cycloalkyl, aryl, aralkyl or alkaryl group, R1 is a C1-C18 alkyl or alkyloxyalkyl group, R11 is a vinyl, allyl or cyclohexenyl group, x is 0, 1 or 2, y is 1, 2 or 3 and the sum of x and y is 3.  Polymerization takes place through the R11 groups to produce a carbon-to-carbon chain, so that the polymers are not polysiloxanes.  The oil may be a mineral or synthetic lubricating oil or a ligher petroleum fraction such as gasoline or kerosene. Synthetic lubricating oils mentioned are polymerized unsaturated hydrocarbons (e.g. polybutenes, polypropenes and mixtures of these), polyalkylene glycols and esters thereof, and the aliphatic diesters of dicarboxylic acids (e.g. butyl, hexyl, 2-ethylhexyl, decyl and lauryl esters of sebacic, adipic or azelaic acid).  The homopolymers may be derived from vinylalkoxy-, allylalkoxy- or cyclohexenylalkoxy-silanes or mixtures of these.  In particular, homopolymers derived from vinyltriethoxy-, vinyltributoxy-, vinylbutyldiethoxy-, vinyldibutylethoxy-, vinylhexyldibutoxy-, vinyldiphenylethoxy-, vinylphenyldiethoxy-silane may be employed. The homopolymers may be employed in lubricating oils in conjunction with other additives, such as extreme pressure agents, viscosity index improvers, oiliness agents and detergents. Specified detergents are phosphosulphurized hydrocarbons (e.g. phosphosulphurized polybutylene) neutralized with sodium or potassium hydroxide, alkaline earth petroleum sulphonates, alkaline earth phenyl stearates and alkaline earth alkyl phenol sulphides.  In the examples, toluene or kerosene solutions of polyvinyltriethoxysilanes are added to a lubricating composition consisting of mineral oil and lecithin.  For comparison purposes, the effect of adding toluene or kerosene solutions of dimethylsilicones to the same lubricating composition is described.ALSO:Homopolymers derived from a silane monomer of formula <FORM:0814200/IV (a)/1> wherein R is a C1-C18 monovalent hydrocarbon group comprising an alkyl, cycloalkyl, aryl, aralkyl or alkaryl group, R1 is a C1-C18 alkyl or alkoxyalkyl group, R11 is a vinyl, allyl or cyclohexenyl group, x is 0, 1 or 2, y is 1, 2 or 3 and the sum of x and y is 3, are employed in oils as anti-foam agents (see Group III).  Polymerization takes place through the R11 groups to produce a carbon-to-carbon chain, so that the polymers are not polysiloxanes.  The monomers may be polymerized at elevated temperature and in the presence of di-t-butyl peroxide as catalyst, employing an inert, substantially anhydrous atmosphere, for example of nitrogen, argon or carbon dioxide.  In examples, vinyltriethoxysilane, vinylethyldiethoxysilane, vinylphenyldiethoxysilane or vinyldiphenylethoxysilane are polymerized.
Patent GB-311836-A (GB)
Title: Improvements in signs
IPC: G09F1/12
Filed: 1928-07-10
Abstract: 311,836. Brown, A. M. July 10, 1928. Signs, securing.-A stencil 3 interposed between two transparent plates 2, 4 is surrounded by and supported within a shallow frame 1 by tags 1<a> which extend from the back of the frame. The plate 4 may be a sheet of coloured celluloid, and a plate 5 of translucent, mirrored, or facetted glass may be included in the frame. Suspension eyelets are provided.
Patent GB-544831-A (GB)
Title: Improvements in thermionic cathode controlled arc discharge devices
IPC: H01J17/56
Filed: 1941-02-04
Abstract: 544,831. Metal-vapour apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., and KNIGHT, H. DE B. Feb. 4, 1941, No. 1446. [Class 39 (i)] In thermionic cathode controlled arc discharge devices, the control grid is associated with an auxiliary anode, and the main anode is screened from the cathode so that the discharge thereto occurs only when the auxiliary discharge is started. As shown, the anode 1 and cathode 2 are enclosed in a tubular screen 7, and a baffle 8, which may be such as is described in Specifications 413,125 and 444;362, is interposed between the anode and cathode. The biasing potential applied to the screen and baffle is such that the main discharge is prevented at all voltages within the range of the device, in the absence of the auxiliary discharge. The latter is supplied by an auxiliary anode 9 and a control grid 11 which is disposed opposite an aperture 10 in the screen 7 and on the cathode side of the baffle. The cathode is an enclosure 6 internally coated with strontium or barium oxide, heated by an element 5 and may be of the shielded type described in Specification 308,447, [Class 39 (i)]. In a modified form of the device, the cathode is a directly heated, filament, surrounded by an open-ended cylinder, and the baffle is an imperforate disc disposed over the open end of the cylinder and transversely across the main discharge path. The discharge takes place around the edge of the disc, and the auxiliary anode and grid are disposed adjacent the discharge path. Specification 445,593 also is referred to.
Patent GB-1020392-A (GB)
Title: Catalytic hydrogenation of dialkylnitrosamines
Inventor: MOORE WILLIAM PERCY
IPC: C07C241/02
Filed: 1964-01-13
Abstract: Unsymmetrical dialkyl hydrazines are prepared by treating a slurry of the corresponding dialkylnitrosamine and a palladium or platinum hydrogenation catalyst with hydrogen under hydrogenation conditions, and passing the resultant reaction mixture through a flash evaporator to separate quickly the reaction product and by-products from the catalyst, which is used again.  The above process may be adapted to continuous working.  Reference has been directed by the Comptroller to Specification 801,534.
Patent GB-378769-A (GB)
Title: Process for the separation of gaseous mixtures by liquefaction
IPC: F25J3/04
Filed: 1932-01-18
Abstract: 378,769. Separating gases by liquefaction. FRANKL, M., 234, Ulmerstrasse, Augsburg, Germany. Jan. 18, 1932, No. 1473. Convention date, Nov. 16, 1931. [Class 8 (ii).] Nitrogen from the first stage of the rectification column passes by a pipe D to an exchanger E; after warming, a part is expanded in a motor Hand flows away after recuperation of its cold; the remainder passes through an exchanger I to a compressor K and back through coils in the exchangers to a pipe L which conveys it in the liquid state through a refrigerator N to the second stage rectifier R. Impure liquid oxygen at the base of the column is led through another compartment of the refrigerator to the second stage rectifier. The gases separated in this second stage pass through the compartments of this refrigerator cooling the impure gases of their own kind. In a modification, the expansion in the motor H and liquefaction in the coil F in the exchanger E are performed on a part of the incoming air in place of the nitrogen. The second stage of rectification may be omitted if oxygen of 40-45 per cent purity is adequate. Gases other than air may be treated.
Patent GB-139154-A (GB)
Title: Improvements in and relating to the manufacture of saw-blades
IPC: B23D65/00
Filed: 1920-01-16
Abstract: 139,154. Rheinische Metallwaarenund-Maschinenfabrik. Feb. 17, 1919, [Convention date]. Saws are rolled or hammered out from an ingot or section of an ingot so that the periphery of the ingot forms the periphery of the saw, the relatively inferior metal of the centre remaining at the centre of the saw. An ingot of the section shown in Fig. 7 may be cut up as indicated in Fig. 6, or special circular ingots with central feeding heads c, Fig. 9, may be cast.
Patent GB-585112-A (GB)
Title: Improvements in stoves and methods of making same
IPC: F24H7/00
Filed: 1945-01-19
Abstract: 585,112. Closed solid-fuel stoves. WELNICKI, J., and MARTINO, W. DE. Jan. 19, 1945, No. 1628. [Class 126] A closed solid-fuel stove comprises a mass o of refractory material enclosed within a casing n of sheet. metal or tiles and having formed therein a front flue d leading upwardly from the fuel space c to two lateral down flues h, the latter being connected at their lower ends i to rear up flues h' which deliver at their upper ends g' to a central rear flue m leading to the chimney outlet n. The cross sectional area of each of the side flues h, h' is one half that of the central flues d, m; dampers k control the connections i between the flues h, h<1> and dust collecting boxes t are arranged below these connections. The stove may be built up of prefabricated bricks glazed on the surfaces forming the outside of the stove or of two or more superposed moulded units of clay or chamotte which are dried and burnt in a kiln either before or after removal from the mould and then inserted in a metal casing. In an alternative method of construction sheet metal flues and other metal parts such as the grate are attached to the metal casing and the intervening spaces filled in with the refractory material which may be wholly dried before use or the drying completed during the initial operation of the stove. A modification is described in which the flue m leads upwardly to the outlet n, an oven or boiler being arranged between the rear side flues h<1>.
Patent GB-714782-A (GB)
Title: Improvements in or relating to floor levelling compositions
IPC: E04F15/12
Filed: 1952-01-21
Abstract: A composition for levelling floors comprises sand as the major proportion and a minor proportion of polyvinyl acetate emulsion. Preferred compositions contain 15 to 19 per cent. of emulsion and 76 to 80 per cent. of sand.  The emulsion may contain about 40 to 55 per cent. solids.  Part of the resin emulsion, for example, 50 per cent., may be replaced by an asphalt emulsion, e.g. one containing 50 to 75 per cent. solids.  Small amounts of water, sodium silicate, asbestos and emulsifying agent (sodium salt of polymerized alkyl aryl sulphonic acid) may also be added.