baber/WOPTO huggingface dataset:
Patent GB-1128847-A (GB)
Title: Improvements in and relating to junction boxes for coaxial leads
Inventor: CLAYDON JACK
IPC: H02G3/06
Filed: 1966-05-23
Abstract: 1,128,847. Circuit assemblies. BELLING & LEE Ltd. 23 May, 1967 [23 May, 1966], No. 22789/66. Heading H1R. [Also in Division H2] A junction box for coaxial leads comprises an enclosure formed by rectangular members separably secured together, the upstanding margins of the members meeting to form sidewalls, in two of which, opposite one another, are formed coaxially disposed cable entry apertures 7, 8, and there is at least one further cable entry aperture 25 in another wall. In the box are terminals 19, 24 for the inner conductors of coaxial leads aligned with the entry apertures, and clamps 9, 10, 26, adjacent to each of the apertures and electrically connected to one of the members 1 to grip the outer conductors of inserted coaxial leads. Cylindrical conductive channels 11, 12, 13, 14, 15, 16, coaxial with the axis of holes 7 and 8 and formed by opposed recesses in inwardly projecting portions of the rectangular members, extend from near the clamps 9 and 10 to the terminal 19 and serve to reduce or prevent discontinuities in the impedance of the coaxial lead passing through them with its outer conductor removed. A circuit provides a signal path between the main terminal 19 and the secondary terminals 24, and consists of a series combination of two resistors 21, 22, connected between the main terminal and the structure of the box, and a toroidal transformer 23, the input winding of which is connected between the junction of the resistors and the box, and the output winding between the secondary terminal 24 and the box. A capacitor may be connected between the main terminal and one or each of the series resistor combinations. The box is made of metal or metal-lined plastics material, and is sealed to prevent the ingress of moisture.
Patent GB-738261-A (GB)
Title: Improvements in or relating to conveyors
Inventor: COOPER GEORGE WILLIAM
IPC: A01D87/02
Filed: 1950-09-16
Abstract: 738,261. Endless conveyers. AGRICULTURAL REQUISITES & MECHANISATIONS, Ltd. Nov. 28, 1951 [Sept. 16, 1950], No. 22814/50. Class 78 (1). An elevator, particularly for raising crops from the ground, of the kind adapted to be towed by a tractor comprises a frame 10, supported by wheels 11 and adjustable shoes 12, on which is mounted a supporting trough 13 for a pair of parallel chains 14 connected by anglebars 15 carrying tines 16. The chains pass round terminal sprockets 17, 26, driving sprockets 18 and tension sprockets 20. The sprockets 26 are loosely mounted on a shaft 2 supported in slots 28 in plates 29 attached to the trough 13. The sprockets 20 are mounted on a shaft 21 carried by spring-controlled levers 22 pivotally mounted on the shaft 19 of the sprockets 18 and provided with pins 23 engaging in slots 24 in brackets 25 supporting the shafts 19. When the tines 16 encounter any obstruction or uneven ground, the chains 14 at their lower ends and the sprockets 20, 26 move relatively to the trough 13 and, after passing the obstruction, return to their normal position. The shaft 19 may be driven through gearing from the wheels 11 or from a power unit on the frame 10 or on the tractor towing the frame. Each chain 14 comprises links connected by springs whereby any slack is taken up automatically.
Patent GB-583688-A (GB)
Title: Improvements in tubulous vapour generators
IPC: F22B21/34
Filed: 1944-11-17
Abstract: 583,688. Water-tube steam boilers. STIRLING BOILER CO., Ltd., and NOBLE, E. E. Nov. 17, 1944, No. 22829. [Class 123 (ii)] In a steam boiler having a tubular furnacewall screen 1 extending longitudinally with respect to and between an upper steam and water drum 2 and a lower water drum or header 4, feeder tubes 6 of the screen are disposed for the major parts of their lengths on the side of riser tubes 3 remote from the combustion chamber 7 but pass near their upper ends between the riser tubes so as to be connected to the drum 2 at locations 8 nearer the bottom of the drum than the connections 5 of the riser tubes therewith. A wall baffle is formed in the region where the riser and feeder tubes 3, 6 cross by initially plastic material 20, applied to the tubes and held in position by projections on the latter, and below and above the said region respectively by fire tiles 18, located behind and against the riser tubes, and similar tiles 19 located against the feeder tubes. Preferably the riser and feeder tubes are each arranged in a single row, the feeder tubes alternating with pairs of riser tubes and the latter being staggered with respect to the front row of the adjoining bank 13 of boiler tubes. A box 9, of the shape shown, is provided within the drum 2 to receive the steam and water discharged from the riser tubes 3 and is formed with steam and water outlets 10, 11 disposed respectively in the steam and water spaces of the drum. In one specific construction, Fig. 3, a curved strip 23, for directing discharged steam and Water upwardly towards the outlet 10, is secured to the main part 24 of the box and is provided at its lower edge With triangular notches 21, which are staggered with respect to the upper ends of the riser tubes and constitute the liquid outlet 11, and with a strip 25 extending in contact with the inner surface of the drum. The main part 24 of the box is also extended to form a downwardly-directed baffle 26 disposed in front of the liquid outlet 11, and a downwardly-directed baffle 27, Fig. 1, is fitted above the steam outlet 10.
Patent GB-334671-A (GB)
Title: Improvements in or relating to bread boards and like cutting surfaces
IPC: A47J47/00
Filed: 1929-07-25
Abstract: 334,671. Collyer, J. July 25, 1929. Plates, dishes, &c.-A bread board has a portion 12 which is received in a tray 2 so that the board is rotatable thereon. The board is recessed to house the blade of the knife.
Patent GB-1381845-A (GB)
Title: Identification device
IPC: B42D15/10
Filed: 1973-05-14
Abstract: 1381845 Identifying device US RESEARCH & DEVELOPMENT CORP 14 May 1973 22838/73 Heading G2X An identifying device (e.g. for use as a driving licence or credit card) is prepared by photographically exposing a layer of photo-hardenable ink on a support base to an image of identifying information, removing the unhardened ink to leave an image of hardened ink on the base, covering the image with a protective transparent layer, and unifying the support base, the image imposed thereon and protective layer in the absence of adhesive and throughout the extent of their contacting surfaces into an indivisible combination.
Patent GB-831115-A (GB)
Title: Production of gases containing acetylene, ethylene, carbon monoxide and hydrogen
Inventor: ARTHUR JOHN REX
IPC: C07C2/78
Filed: 1954-08-05
Abstract: <PICT:0831115/IV (b)/1> In a process for producing gases containing acetylene, ethylene, carbon monoxide and hydrogen, one or more jets of oxygen alone or in admixture with a diluent is or are burned in the form of a flame or flames in a passage through which is passed a current of a gaseous saturated hydrocarbon so that the flame or each flame burns within a surrounding stream of the gaseous hydrocarbon. Suitable hydrocarbons are for example methane, ethane, propane and higher hydrocarbons of the paraffin series, or mixtures of such hydrocarbons such as natural gas, waste gases from petroleum refineries, sewage gas and mine gas.  As shown, a vertical glass flame tube 1 has its open lower end detachably fitted over the open end of a tubular base 2, which is supplied with gaseous hydrocarbon through a conduit 6 and four branched conduits 7.  The oxygen or diluted oxygen is passed through tube 4, which is centrally arranged within the base 2, and issues from the open end 5 of tube 4 to form a flame within a surrounding current of the gaseous hydrocarbon.  The gases are ignited by means of a coil of platinum wire 8, which is momentarily heated by the passage through it of an electric current, the coil being retractable after use into a tube 9.  The concentration of acetylene is influenced by the dilution ratio, velocity ratio, and annulus-jet ratio.  The dilution ratio, i.e. the volume of diluent gas divided by the volume of oxygen present is preferably within the range of 1.3 to 1.7 for methane and 0.4 to 1.5 for propane when nitrogen is the diluent gas.  The velocity ratio is the ratio of the linear velocity at which the oxygen or diluted oxygen is supplied to form the jet to the linear velocity at which the gaseous hydrocarbon is supplied, and varies from 10 to 75.  The annulus-jet ratio, i.e. the crosssectional area of the space between the inlet 5 and the surrounding wall of the passage through which passes the gaseous hydrocarbon divided by the cross-sectional area of the orifice of the inlet 5 from which the jet of oxygen or diluted oxygen issues is usually within the range 6 to 75.  If steam is used as a diluent the dilution ratio is preferably not less than 0.5.  The gaseous hydrocarbon and/or the oxygen or diluted oxygen may be preheated preferably to at least 300 DEG  C.  To avoid substantial cracking the temperature should not exceed 800 DEG  C. in the case of methane or 450 DEG  C. in the case of propane.  In an example in which gaseous hydrocarbon is propane steam supplied at 150 DEG  C. is mixed with oxygen at 50 DEG  C. the mixture being supplied to inlet tube 4 at 110 DEG  C. With a dilution ratio of 0.8, an annulus-jet ratio of 6.5 and a velocity ratio of 14 the product gas contained the following percentages, acetylene 7,0, ethylene 7.4, carbon monoxide 22.6, and hydrogen 35.6.
Patent GB-698477-A (GB)
Title: Improvements in or relating to transportable belt conveyors
IPC: B65G21/14
Filed: 1951-10-01
Abstract: 698,477. Endless belt conveyers. LINDBERG, B. A. Oct. 1, 1951. [Oct. 16, 1950] No. 22867/51. Class 78 (i). An adjustable support for the terminal rollers of an endless conveyer belt comprises frames 2. 3 mounted on a pivot 9 and pivotally connected at their lower ends on members 4, 5 own a stand 1. The member 5 is fixed on the stand whilst the member 4 is attached to a screw 6 engaging a nut 7 which is held against longitudinal movement but rotatable by a wheel 8 so as to adjust the position of the frames 2,3. A tension roller 13 for the belt is mounted on a shaft 12 engaging guide grooves 11 in a pair of levers 10 mounted on the pivot 9. The necessary tension is obtained by making the roller of a suitable weight or by connecting a spring between the shaft 12 and the stand 1. The conveyer may be inclined by adjusting screw-spindles 18 serving as ground-engaging supports. The roller 14 is driven by a roller 19 on the frame 2.
Patent GB-237759-A (GB)
Title: Improvements in self-driving electricity generating plant
IPC: H02K53/00
Filed: 1924-09-29
Abstract: 237,759. Dehn, F. B., (Babbitt, P. W.). Sept. 29, 1924. Self-driving machines.- A self - driving electrical system comprises a generator 29<1>, connected electrically by leads 32 and mechanically by a belt 35 to a motor 30, which, through a belt 38, drives a second generator 31 from w h i c h current is led through conductors 33 to terminals 2 from which power is taken. The system is started by means of a spring-motor comprising a spring 11 on a shaft 7 adapted to be wound by a crank 13, a ratchet-wheel 14 and a spring pawl 15 being provided to prevent reverse rotation during winding. When the spring 11 is wound, the shaft 7 is held by a brake comprising arms 20 on a bracket 18 adapted to embrace a drum on the shaft 7 and controlled by a screw 21, the pawl 15 is then disengaged from the wheel 14 and the brake-screw 21 released and motion is transmitted from the shaft 7 through gearing 24<a> - - 24<f>, 25, 26 to the shaft 8 and thence through the belt 29 to the generator 29<1>, which latter is thereafter driven from the motor 30. A storage battery 50 is provided to receive surplus power from the generator 31 which may be used subsequently instead of the spring 11 for starting the system.
Patent GB-840798-A (GB)
Title: Improvements relating to the formation of phosphate coatings on metal surfaces
Inventor: EDMONDSON THOMAS
IPC: C23C22/36
Filed: 1955-08-09
Abstract: A phosphate coating is formed on a metallic surface by treating the surface with an aqueous solution containing a primary orthophosphate of an alkali metal, ammonium or an organic base together with nitroguanidine as an accelerator, the solution having a pH of 3-6 and containing less than 0.02 g/l of calcium. The solution may be made up by dissolving the named ingredients in water containing less than 0.02 g/l of calcium, e.g. in deionized or distilled water or boiler condensate, or by dissolving them together with a calcium-precipitating agent in normal tap water.  Suitable calcium-precipitating agents are soluble fluorides, silicofluorides, phthalates, arsenates, borofluorides and metasilicates; ammonium silicofluoride is preferred.  Wetting agents with or without emulsifiable solvents may be incorporated in the solution.  Solid compositions for making up and replenishing the solution are disclosed; suitable phosphates for the latter purpose are boron phosphate, urea phosphate and the solid mannitol phosphoric acid compound. Metals which may be coated are iron, steel and zinc. Specifications 517,049, 714,321, 715,607 and 715,608 are referred to.
Patent GB-1113534-A (GB)
Title: Cleansing of gases
IPC: B01D46/00
Filed: 1965-05-31
Abstract: 1,113,534. Cleaning gases. E. I. DU PONT DE NEMOURS & CO. 31 May, 1965 [1 June, 1964], No. 2304l/65. Heading BIR. In removing dust and rust from a gas the gas is sprayed with liquid from a nozzle 15 and passed upwardly through a bed 12 of fibrous material at a velocity in excess of that which prevents flooding of the bed, the gas/ liquid mixture is deflected downwardly by a baffle 16 and separated into a slurry withdrawn at 19 and a cleaned gas drawn off at 18. The fibrous material may be a knitted fabric. It may be fabricated from filaments having diameters between 0.5 and 16 mils and the packing density of the bed may be between 1 and 20 lb/ft<SP>3</SP> with a said fraction between 80 to 99%.
Patent GB-230610-A (GB)
Abstract: 230,610. Williams, H. O. Feb. 15, 1924. W i n c h - actuated load - handling machines.-The framework of a hoist for lifting motor vehicles &c. comprises inverted U- shaped members 1, 2 connected by bracing members 3 of clamp formation and having oppositely out-turned lower ends 4, 5 connected by struts 6. The hoisting chains or ropes 15, 16 are passed over pulleys 14 on the framework to a winding drum 10 which is driven through worm gearing by a crank 13. The members 1, 2 are telescopic and are maintained in any position by pins 18 passed through the lower portion and engaging the underside of the upper portion.
Patent GB-713295-A (GB)
Title: Improved steering gear for vehicles
IPC: B62D3/08
Filed: 1952-09-15
Abstract: 713,295. Screw-and-nut steering mechanism. ,GENERAL MOTORS .CORPORATION. Sept. 15, 1952 [Oct. 18, 1951], No. 23071/52. Class 80 (1) In a steering mechanism a rock shaft 38 carries arms 34, 3C in which are mounted, on roller bearings, pins 26, 28 engaging transverse slots in a ball nut 14 which is traversed by a worm on the steering shaft 4, undue rotation of the nut on the worm in the central position being prevented by the co-operation of a side 78 of the nut with a boss 74 on the rock shaft. In positions away from the centre the reactions of the pin on the nut prevent its rotation.
Patent GB-1277752-A (GB)
Title: Spindle driving and supporting mechanism
Inventor: SCRIVEN ERIC THOMAS
IPC: D02G1/06
Filed: 1969-05-07
Abstract: 1277752 Friction gearing SCRIVEN & PAGET Ltd 5 Aug 1970 [7 May 1969] 23211/69 Heading F2Q [Also in Division D1] False twist tubes or other types of spindle 11 and 12 are held in the nip between a drive belt 10 and a locating wheel 8 by magnets 13 and 14 respectively. The magnets 13 and 14 are mounted on a bracket 5 which pivots to allow alignment of the tubes. The locating wheel may or may not be driven other than by the twist tubes. Two alignment wheels may be employed with four twist tubes, Fig. 6 (not shown). Drive to the locating wheels and belt carrying wheels 8 is by pulleys (6), Fig. 1, not shown, operated by belts (7) as shown in Fig. 2 or any of Figs. 3, 4, 7, 8, 9, 10 or 11 (not shown). The wheels 8 may have a rim of high friction material, e.g. rubber. The twist tubes 11, 12 have a slot for threading the yarn about a crosspin 19, Fig. 1 (not shown). The whole unit may pivot to disengage the pulleys from the belt.
Patent GB-480445-A (GB)
Title: Improvements in and relating to scrapers for removing material from moving surfaces in grinding and other machines
IPC: B24B53/00
Filed: 1936-08-25
Abstract: 480,445. Scrapers for roller mills. SONSTHAGEN, A., and SONSTHAGEN, L. A. Aug. 25, 1936, No. 23359. [Class 59] A scraper blade of thin springy metal is slidably engaged in a fixed guide and is urged toward the roll by springs, weights, &c. As shown a scraper blade 1, of five thousandths of an inch upward in thickness, is slidably mounted between upper and lower plates 4, 3 pivoted by lugs 16 on a bolt 17 mounted in side frames 19 of the mill. The holder is maintained in its position relatively to the roll 5 by side plates 20 secured by bolts 22 to the mill frame 19. The blade 1 is fed toward the roll by pins 13 in contact with a bar 11 actuated by lovers 30 loosely mounted on shaft 17 and actuated by a helical spring 28 anchored to the lever boss and to a disc fixed to shaft 17. The shaft is adapted to be rotated by a worm and worm-wheel to increase the torsion on spring 28 and thereby the pressure of arm 30 on bar 11. The tray 37 is attached to the holder by bolts 38, the sides of the tray being connected to sides 9 of the holder. A tray 40 is suspended under the roll on a bar 42. The bar 11 may be provided with downwardlyprojecting pins which pass through slots in the carrier and engage the rear edge of the scraper, the bar being pulled by weights into contact with the scraper. The scraper may be moved forwardly under fluid pressure.
Patent GB-757571-A (GB)
Title: Improvements in or relating to thread testing apparatus
Inventor: MILNES ALFRED HALLETT
IPC: G01N33/36
Filed: 1954-08-12
Abstract: 757,571. Thread testing. COOK & CO., MANCHESTER, Ltd. July 11, 1955 [Aug. 12, 1954], No. 23378/54. Addition to 701,491. Class 106 (2). In a thread testing apparatus as described and claimed in the parent Specification the vertical movements of the weight-supporting pulley 15 in accordance with variations of length in the thread-loop 13a control, through cables 20, 22 and lever 21, a tensioning device comprising a driven conical roller 18 over which the thread is fed by a yarn fork 26 positioned by a bell-crank 23, 24 attached to the cable 22, the thread being passed over a greater diameter portion of the roller 18 for greater braking effect and vice versa. The roller 18 may co-operate with a spring-loaded idler roller 19.
Patent GB-1222693-A (GB)
Title: Pulse re-shaping circuit
Inventor: ROWDEN CHRISTOPHER GILBERT
IPC: H03K5/01
Filed: 1968-05-17
Abstract: 1,222,693. Pulse reshaping circuits; telephone exchange equipment. STANDARD TELEPHONES & CABLES Ltd. 17 May, 1968, No. 23494/68. Headings H3T and H4K. A pulse shaping circuit comprises a long tail transistor comparator, one side T 4 , of which receives the input pulses and the other side T 3 , a threshold level derived through emitter followers T 1 , T 2  and a rectifier D 1 , C 2 , the capacitor of the rectifier being discharged by the output of the comparator when the signal falls below the threshold. Width distortion due to the sloping sides of the pulse may thus be avoided. The circuit shown receives a keyed tone which has been transmitted in the guard band between channels of a carrier telephone system. The tone burst is transmitted via T 1  to the base of comparator transistor T 4  and when its amplitude exceeds the threshold level applied to the base of T 3  from D 2 , T 4  conducts and the resulting current pulses are smoothed in the collector circuit and via T 5  and T 6  operate a relay S. Meanwhile capacitor C 1  charges up via D 1  to increase the threshold at T 3  base so that at the end of the tone burst the comparator restores at a higher threshold level, chosen to equalize the on and off delay resulting from the sloping flank of the pulse. Restoration of the comparator operates through D 3  and R 1  to discharge the capacitor.
Patent GB-317230-A (GB)
Title: Improvements in change speed gears for motor vehicles
IPC: F16H3/34
Filed: 1928-08-16
Abstract: 317,230. Austin, Sir H. Aug. 16, 1928. Variable-speed gearing comprises a driving- shaft A, Fig. 1, a countershaft H, and a driven shaft C, which is moved laterally to position shown in Fig. 3 to effect second speed. The shaft C has clutch dogs t adapted to engage dogs q on shaft A for first speed. For second speed, an internal gear T on shaft C meshes with an external pinion N on shaft A, For third speed, an external wheel S on gear head of shaft C meshes with a pinion K on countershaft H, which is a sleeve on a shaft F. For reversed driving, the wheel S meshes with an idler p meshing with pinion K. The shaft C has a feathered connection with tail shaft P, so that it can be slid longitudinally, and is supported in a block E which is secured to shaft F as a pivot. The block E is braced so that as it turns about and with pivot shaft F, the shaft C moves parallel to itself. The block E is formed on its top surface with a guideway b in which moves a slide a which engages at its end with a striking-groove V in the gear head of shaft C. The slide a also carries a socket f for the ball-end of a control lever g ball-pivoted at h. A tongue c on slider a is guided in a slot e in a fixed gate plate d. When the lever g is moved perpendicularly to the plane of Fig. 1, the block E is moved pivotally and the tongue c moves up and down the slot e. When lever g is moved in the plane of Fig. 1, gears S, T and clutch t are moved axially and tongue c moves horizontally in slot e. Thus positions 1, 2, 3, r correspond to first, second, and third speeds, and to reversal, respectively. The upper end of lever g moves in an open space j, Fig. 6. In order to lock the lever in the reversed drive position, a gap m is provided to receive it. Before the lever g can enter this gap, a locking sleeve n, Fig. 1, upon it must be raised clear of a pair of lugs. j<1>. The sleeve n snaps down behind the lugs and makes a lock.
Patent GB-1235658-A (GB)
Title: Process for preparing n,n-dialkylacylamides
IPC: C07C231/00
Filed: 1969-05-08
Abstract: 1,235,658. Carboxylic acid N,N-dialkylamides. JAPAN GAS CHEMICAL CO. Inc. 8 May, 1969 [9 May, 1968], No. 23622/69. Heading C2C. Carboxylic acid N,N-dialkylamides are prepared by reacting a tri-(C 1-3  alkyl) amine with an acyl group-containing compound or a compound capable of forming such a compound under the reaction conditions, and with carbon monoxide in the presence of a metal carbonyl catalyst under a pressure of 100-600 kg./cm.<SP>2</SP> (gauge) and a temperature of 150-320‹ C. The preferred amine is trimethylamine and the acyl compound may be acetic acid or an ester thereof, or methanol which is converted to acetic acid under the reaction conditions. The catalyst is advantageously Co, Ni or Fe carbonyl and may be present in an amount of 0.001-0.2 gram atoms of metal per mole of amine. A halogen or metal halide may also be present, e.g. Br 2 , I 2 , NaBr or KI. A solvent such as a carboxylic acid amide, a hydrocarbon, a ketone, an N-alkyl lactam a C 2-3  aliphatic nitrile or water may also be present. Amongst the examples, trimethylamine and acetic acid are reacted using a CO carbonyl catalyst to give N,N-dimethylacetamide and the same product is obtained from trimethylamine, methanol and acetic acid.