baber/WOPTO huggingface dataset:
Patent GB-539763-A (GB)
Title: Improvements in two-way transmission systems
IPC: H04B3/20
Filed: 1940-07-31
Abstract: 539,763. Substation amplifiers. ASSOCIATED ELECTRIC LABORATORIES, Inc. July 31, 1940, No. 12371. Convention date, Aug. 14, 1939. [Class 40 (iv)] In a loud-speaker substation, currents from the microphone 11 pass through a loss network 17 to the line 10, voltages from the two sides of the network being fed respectively through a phase-reversing transformer 31 and potentiometer 33 to the outer grid 25 of a three-grid valve 21 and through a potentiometer 35 to the inner grid 23 of the valve. Owing to the relative ineffectiveness of the outer grid no output is produced from the valve under these conditions. On the other hand, when currents arrive from the line, the relatively high voltages on the line side of the network affect the inner grid and swamp the effect of the attenuated voltages acting on the outer grid. To enable the attenuating network to be reduced in size an amplifier may be included in the path to the outer grid.
Patent GB-909257-A (GB)
Title: Methods of redistributing the ingredients of fusible solute-solvent systems
IPC: C30B13/00
Filed: 1959-04-13
Abstract: In a zone refining method a solid-liquid interface is moved simultaneously along solid material in each of at least two distinct traversal paths from one material transfer path to another, each <PICT:0909257/III/1> <PICT:0909257/III/2> <PICT:0909257/III/3> transfer path connecting one end of one traversal path to the adjacent end of the other traversal path and adjacent ends of both transfer paths being connected to form a cyclic path, while material being refined is passed around the cyclic path.  The material may be transferred as a solid or a liquid.  In a batch process the material is passed in a closed cycle (Fig. 1) while in a continuous process a portion of the material is withdrawn continuously from the outlet end of one or both transfer paths, an equal amount of material being introduced into an intermediate traversal path (Fig. 9) or unheated mixing zone (Fig. 8).  A single molten zone may be passed along each traversal path, molten material from one transfer path being stored before being passed to the other.  The traversal path should be at least 2,5 zone lengths.  Specifications 769,673, 769,674 and 906,010 are referred to.
Patent GB-595777-A (GB)
Title: Improvements in or relating to the preparation of arylsulphonylthioureas
Filed: 1945-05-17
Abstract: The process of obtaining nuclearly substituted or unsubstituted N - arylsulphonylthioureas which is described in Specification 595,771 and which comprises the addition of hydrogen sulphide to the corresponding arylsulphonylcyanamides, is carried out in an anhydrous medium and in the presence of anhydrous ammonia or of an anhydrous organic base or of a substance capable of generating nacent sulphur under the conditions of the reaction.  Specified substances for this purpose are flowers of sulphur, sodium polysulphide, sodium thioantimonate, the disulphide of tetramethylthiouram, thionyl chloride and the peroxides such as hydrogen, sodium or benzoyl peroxides.  In examples: (1) an absolute alcoholic solution of diethylamine, p - aminobenzenesulphonyl - cyanide and the disulphide of tetramethylthiouram is saturated with hydrogen sulphide to form N-(p-aminobenzenesulphonyl)-thiourea; (2) as in example (1), but using ammonia as the base and thionyl chloride as the sulphur yielding compound.  A sample has been furnished under Sect. 2 (5) prepared by saturating with H2S an alcohol solution of p-aminobenzenesulphonylcyanamide containing anhydrous ammonia and hydrogen peroxide.  The product is worked up as in example (1).
Patent GB-691236-A (GB)
Title: Solder dispensing apparatus
IPC: H01J9/34
Filed: 1951-05-28
Abstract: 691,236. Soldering. SYLVANIA ELECTRIC PRODUCTS, Inc. May 28, 1951 [May 31, 1950], No. 12505/51. Class 83 (iv). In apparatus for simultaneously soldering wires to the top and side of the base of an electric lamp 24 a solder-dispensing head comprises a bedplate 39 with mechanisms for feeding solder to the top and side of the lamp base 26 mounted on one side of the bedplate and actuated by means on the other side through mechanical coupling means passing through the bedplate. In an automatic machine the bulbs 24 mounted on an indexed turntable 17 are successively brought to a solder feeding station 1 comprising the bedplate 39 from which two solder wires 56, 67 are intermittently fed at right angles to the top and side of the lamp base 26 by rolls and are melted by burners 109, 110. The feed roll pairs, comprise serrated rolls 52, 63 and pressure rolls 54, 65 which are adjustable by screws 59, 70. The rolls are intermittently rotated by a camactuated push-rod 37 having a slotted end 75 engaging a pin 77 on a lever 78 which rotates a shaft 79, and ratchet and pawl systems on the bedplate 39 coupled to the pressure rolls. The degree of rotation of the rolls is adjustable by means of shrouds on the ratchets. The bulb 24 is held in position against a plate 25 by a spring-pressed plunger 19 and in the event of a bulb not being in position a roller 22 on the plunger engages a member 104 carrying a guide for the push rod 37 and displaces the push rod so that a longitudinal slot 74 is aligned with the pin 77 on the lever 78 and no motion is imparted to the lever 78, feed rolls &c. The bedplate 39 is rotatable about a pivot 2 on the machine frame 3 and is lifted clear of the bulb by a cam-actuated push rod 38 during indexing of the turn-table. The bedplate is adjusted in position by a stop 108 and the position of the solder wire may be separately adjusted relative to the work by the rotation of guide tubes 48, 60 which may be slackened by keys 114, 118. The feed rolls 52, 54 are mounted on a vertically adjustable plate 44 attached to the bedplate 39 by bolts 46 in slots 45. In a modification a pair of solder wires may be fed to the top of a lamp base having two contacts. Separate feed rolls may be used or the rolls may have pairs of grooves.
Patent GB-989709-A (GB)
Title: Improvements in or relating to roller-type conveyors
IPC: B65G13/10
Filed: 1964-03-25
Abstract: 989,709. Roller conveyers. J. ABEGGLEN. March 25, 1964 [March 25, 1963], No. 12625/64. Heading B8A. Articles on a straight track portion of a roller conveyer may be diverted to a curved track portion by tapered rollers 20-26 when these rollers are raised into their working position from an idle lower position of rest. The rollers are raised consecutively, roller 20 first and roller 26 last, and are driven by a V-belt 36 which engages pulleys 35 on the rollers. Each roller is carried on a vertically movable mounting 31 which may be raised by an electromagnet DE. The straight track comprises cylindrical rollers 1-16 journalled in fixed bearings on a frame 17. These rollers are driven by a chain 19 and sprockets 18. Conveyer control.-A blocking device 37, Fig. 3, is arranged between the rollers 4, 5 and is normally raised by springs 41 in the path of articles arriving on rollers 1-4. The device may be retracted from the path of the articles by means of an electromagnet BL. For automatic control, the articles are provided with labels on which control orders for the conveyer are printed in coded form for reading by photo-electric devices 42-46. Light barriers include photocells 50, 51, 52. The barrier 50 initiates the scanning of the control order and the blocking device 37 is lowered. If the scanned code does not agree with the operating programme set on a series of hand switches (not shown), the tapered rollers 20-26 remain at rest and the article is conveyed on the straight track. If the scanned code agrees with the set programme, the tapered rollers 20-26 are raised in turn into their working positions and the article passes along the curved track. The photo-cell 52 ensures that an article following an article travelling on the straight track neither reaches the incorrect track nor brings about the change in track as long as the preceding article is still in the range of both sets of rollers 1-16, 20-26. In a similar manner, photo-cell 51 inhibits incorrect routing of an article following an article on the curved track. The arrangement is applicable to a straight track and two curved tracks, two movable sets of rollers then being provided. The tracks may be of converging form. Pneumatic or hydraulic mechanisms may replace the electromagnetic roller lifting means.
Patent GB-532864-A (GB)
Title: Improvements relating to the synthetic production of motor fuels
IPC: C07C2/62
Filed: 1939-04-26
Abstract: 532,864. Alkylation of isoparaffins. ANGLOIRANIAN OIL CO., Ltd., and McNEILL, E. April 26, 1939, Nos. 12555 and 20363. [Class 2 (iii)] Isoparaffins are alkylated with reactive olefines in the presence of a catalyst, the process being characterized in that the olefine is added and maintained in a small proportion in a stream of circulating isoparaffin and catalyst which is kept in a condition of intimate mixture or emulsion. The addition of the olefine is preferably made at more than one point in the flow system, always subject to the condition that the mixture of isoparaffin or its equivalent circulates at a rate considerably in excess of the rate of addition of the olefine. The process may be carried out in a single stage only, or as is preferred in a number of stages in which the addition of the olefine is distributed between the stages. The catalyst which is preferably sulphuric acid of 96-98 per cent. strength may flow concurrently with the reactants or in countercurrent. In the multi-stage operation there may be separation of the acid and reactants at each stage. It is preferred to carry out the reaction in the liquid state, using sufficient pressure to maintain the reactants in this condition. It is however possible to work in the liquid-gas condition. Olefines mentioned include propylene, isobutene, di-isobutene, tri-isobutene, butene-1, butene-2, trimethylethylene or mixtures of olefines such as a C 4  fraction cut from gases derived from an oil cracking plant or the condensation product of olefines derived from such a fraction or a polymerized olefine from propylene, butenes or isobutene or a polymer gasoline. Details of the process are illustrated by means of a flow sheet in which there are shown modifications of the process. The reaction vessel may be fitted with agitators to maintain the reaction components in intimate admixture, or the same result may be obtained by the use of high capacity pumps. Specifications 479,345 and 515,039 are referred to.
Patent GB-883399-A (GB)
Title: Improvements in electric battery separators
Inventor: NEUMANN FELIX
IPC: H01M50/406
Filed: 1958-04-22
Abstract: 883,399. Batteries. EBONITE CONTAINER CO. (MANUFACTURING) Ltd. April 21, 1959 [April 22, 1958], No. 12657/58. Class 53. A battery separator consists of a cellulosic web impregnated with a thermosetting resin and having attached to its surface ribs made of thermoplastic resin, for example, polyvinyl chloride containing kaolin, kieselguhr, chalk or other material to impede spreading of the resin over the web. The ribs may be formed by extrusion, or fibrous cords may be passed through a resin solution and laid on the web which is then heated to dry and fuse the ribs to the web. Fig. 1 shows an apparatus for making a long length of the separator material according to the second method. The cellulosic web 10 is drawn from a reel and passed through an aqueous solution of phenol formaldehyde resin 13 which is partly cured in an oven 15. Lengths of string are drawn from bobbins 16 and through a bath 21 containing an emulsion of polyvinyl chloride and kaolin. The coated strings pass through holes 24 in the side of the bath to remove excess resin and are laid on the web to form parallel ribs. The web then passes through an oven 27, a bath 30 containing a wetting agent, and a drying chamber 32, and is then cut into the required lengths by a guillotine 34.
Patent GB-170883-A (GB)
Title: Improvements in or relating to means for operating glass-bottle and like machinery with an intermittent or step-by-step motion
IPC: C03B9/40
Filed: 1920-05-07
Abstract: 170,883. Kitson, T. B., (Winder, S. E.). May 7, 1920. Periodic.-In bottle-making and like machinery having heavy parts actuated with a step-by-step movement, means are provided for absorbing the momentum of such parts after each movement before applying a positive stop, in order to prevent injury to the articles produced. A table 20, Fig. 1, is intermittently rotated by ratchet gearing, Fig. 6, comprising an oscillating-arm 152 which is driven by a cam on the driving-shaft and carries a spring-pressed pawl 157, adapted to engage notches 156 in a disc 155 secured to the table. Towards the end of each feed-stroke a roller 171 on the arm 152 engages a piece 170. Fig. 4, which is loose on a stationary pivot 166 and actuates a bell-crank 167, 165 through a cushioning-spring 172, adjustable to control the position of rest, thereby tightening a brake-band 162 upon a drum 161 rigid with the table 20, the other end of the band being secured by a pin 163 to the machine frame. By a cam, or preferably by cam-controlled pneumatic means, a plunger is then thrust into one of a series of slightly tapered holes near the periphery of the table and between the moulds, thus effecting the final trueing-up and locking of the table, a strokelimiting stop being provided to prevent the plunger from jarring or binding in the hole. There may be two tables on the machine, which is wheel-borne, and may be traversed by a ram 25, 26, Fig. 1.
Patent GB-551258-A (GB)
Title: Improvements in fluid operated means for controlling apparatus at a distance
IPC: F15B9/12
Filed: 1941-10-01
Abstract: 551,258. Fluid-pressure servomotor-control systems. DODSON, E. Oct. 1, 1941, No. 12689. [Class 135] The receiver unit of a remote control system comprises a spring-controlled biasing piston, normally maintained inoperative by pressure in the pipe line, but effective to move a pressure sensitive element to a predetermined position when the pressure fails. The system comprises an element 30, Fig. 2, acted on by the pressure in the pipe line 60 from the sender unit and balanced by a spring 31, a valve 15, and a servomotor piston. A floating lever 32 is connected at one end to the element 30 and at the other to a bellcrank lever 35, operated by an incline 42 carried by the servomotor piston rod, and the valve 15 is connected to the lever 32 at a point nearer its connection with the lever 35. Leakage is evacuated and air vented by means described in Specification 551,259. Should pressure in the pipe line fail, a piston 56 is moved by a spring 54 to cause a tappet 58 to move the element 30 into a predetermined position. In the form shown in Fig. 3, failure of pressure in the pipe line 60 allows a spring 154 to move the biasing piston 156 so that high pressure is admitted from a line 72 to complete the movement of the piston. Specifications 483,049, 534,986, 543,894, 544,793, 551.256, 551,257 and 551,260 also are referred to.
Patent GB-1030572-A (GB)
Title: Improvements in fluid couplings and the like
Inventor: LATIN AUBREY
IPC: F16D33/18
Filed: 1962-04-03
Abstract: 1,030,572. Hydrodynamic couplings. COAL INDUSTRY (PATENTS) Ltd. April 3, 1963 [April 3, 1962], No. 12729/62. Heading F2C. A hydrodynamic coupling is filled with hydraulic fluid in the form of a water and oil emulsion having at least 30% water in the mixture, and is provided with a pressure release valve arranged to be opened by steam under the effect of pressure induced when the coupling is in a stalling condition. As shown, a coupling comprises an impeller 1 and runner 4 disposed in a driving easing 2 provided with a filling pipe 11 which is closed by a spring- loaded pressure release valve 12. The valve 12 comprises a body 13 screwing into the pipe 11 and formed towards the inner periphery of the coupling with an inlet conduit 19. In the event of the output shaft stalling, the temperature of the hydraulic fluid rises and steam is produced under pressure from its water constituent; the pressure induced rises until a ball 16 is raised from a seating 17 against the pressure of a spring 15 and the steam issues through apertures 14a in a tube 14 and thence through the tube to the atmosphere. As long as the stalling condition prevails the water continues to boil off, preventing overloading of the drive motor. The oil constituent of the hydraulic fluid is substantially retained in the coupling reducing the possibility of a spray of oil issuing from the valve and being ignited. The loading of the spring 15 can be adjusted by screwing the tube 14 up or down within the body 13, and the pressure is adjusted so as to allow the valve to open only when the coupling is in a stalling condition, any steam pressure induced whilst the coupling is in an overloaded condition being insufficient to open the valve. The location of the ball 16 reduces centrifugal effects. In a modification suitable for applications where there is a possibility that continued running under stall conditions can result in heating up of the oil remaining after steam discharge, the length of the valve 12 is shortened to permit a liquid/steam discharge to take place instead of steam alone. In another modification the valve 12 is provided on the output shaft, and the valve 12 may be provided in addition to an existing fusible plug.
Patent GB-127817-A (GB)
IPC: F02M67/12
Abstract: 127,817. Tosi Soc. Anon., F., (Assignees of Tosi, F. [Firm of]). June 1, 1918, [Convention date]. Valve-gear. - To avoid the necessity for a stuffing-box on the spindle of a fuel-injection valve, the valve-stem J and lever L are completely enclosed within the valve casing. The lever L is actuated by a plunger S of substantial length which is kept fluidtight by a series of grooves which receive lubricant and by a seating v. The lever L is mounted on a knife-edge bearing, and has a recess in each arm for engagement with the plunger S and with a sleeve on the valve stem respectively.
Patent GB-1390552-A (GB)
Title: Electric sound-producing device
IPC: G10H1/26
Filed: 1972-03-18
Abstract: 1390552 Diaphragm vibrators R R ABSALOM 18 March 1972 12792/72 Addition to 1376433 Heading G5J In an electric sound producing device substantially as described in the parent Specification 1,376,433, the blocking oscillator circuit is modified to omit the diode-resistor circuit connected in parallel with winding 28, the capacitor C 3  being now connected to the collector of the transistor 30. Stability of the oscillations is enhanced by inclusion of diode 32 and resistor R 3 , Fig. 2 (not shown).
Patent GB-1478048-A (GB)
Title: Process for regulating the ripening of coffee berries
IPC: A01N57/00
Filed: 1974-03-22
Abstract: 1478048 Regulating the growth of coffee berries AMCHEM PRODUCTS Inc 7 June 1974 [22 March 1974] 12848/74 Heading ClB The ripening of coffee berries is regulated by contacting them with a ripening agent consisting of one or more alkylphosphonic acid derivatives of the general formula: (wherein R<SP>1</SP> is an unsubstituted alkyl group or an alkyl group bearing one or more hydroxy amino, halo, cyano, carboxyl or sulphonamido substituents; X is oxygen or sulphur; and R<SP>2</SP> and R<SP>3</SP>, which may be the same or different are each a free or esterified hydroxyl group, a hydroxyl group salified with a metal (as defined), a free or esterified thiol group, or a substituted or unsubstituted amino group; or R<SP>2</SP> and R<SP>3</SP> together form a cyclic ester or ester-amide grouping) and/or one or more anhydrides (as defined) thereof, said ripening agent being applied either to the berries before harvest at a time when at least 10 % of the berries on the coffee plant have matured in an amount of at least 100 mg of the compound per coffee plant or to the berries after harvesting. The process is preferably carried out when the ambient temperature is at least 60‹ F. The berries on the plant may be contacted with the reagent twice, firstly 17-18 weeks after flowering and secondly 2-3 weeks thereafter. Alternatively they may be contacted after harvesting but before depulping. The agent may be applied as a solution, emulsion or dispersion in a liquid, e.g. aqueous, medium, at the rate of 150-500 ml/plant, or to the harvested berries in a concentration of at least 1000 ppm.
Patent GB-1450775-A (GB)
Title: Hydraulically operated brakes
IPC: F16D65/14
Filed: 1973-03-16
Abstract: 1450775 Slack-adjusters; spot-type disc brakes GIRLING Ltd 25 Feb 1974 [16 March 1973] 12869/73 Heading F2E In an hydraulically-operated brake of the kind in which a friction element is brought into engagement with a rotor to be braked by an hydraulically operated member and which incorporates an automatic adjuster, the latter comprises a strut which extends between the hydraulically-operated member, e.g. piston 5 and a second member of the brake, e.g. piston 8, the two members moving relatively on application of the brake, and a first part of the strut is formed by a lever 11 which is pivotally mounted at 17 on a second part of the strut, e.g. push rod 14, each of the parts engaging one each of the members 5 and 8; the lever 11 is normally held against angular movement with respect to the second part 14 by engagement with a toothed element 13 rigid with one of the members (as shown, piston 5), means such as a spring 21 being incorporated for normally urging the lever 11 into engagement with the toothed element 13; the arrangement is such that, when relative movement between the members 5, 8, in the application of the brake exceeds a predetermined value due to wear of the friction element, the lever 11 and toothed element 13 are initially disengaged to permit the lever 11 to move angularly (clockwise) so that, when the brake is released, the lever 11 engages a new part of the toothed element 13 to increase the total length of the strut and member assembly 5 to maintain a substantially constant clearance between friction element and rotor. As shown, the rotor is a disc 3 and the second piston 8 applies a second friction pad 9 by means of a caliper 6. The brake may be applied by a hand lever 23 which rotates a cam 22 which engages push rod 14. When wear of the pads is insufficient, lever 11 and toothed element 13 remain engaged, but the teeth on lever 11 slide outwards on the teeth on element 13 during application, and inwards again on release.
Patent GB-1394543-A (GB)
Title: Cattle and sheep feed dispenser
IPC: A01K1/10
Filed: 1973-03-16
Abstract: 1394543 Collapsible feed container JOHN H TAYLOR Ltd 16 March 1973 12874/73 Heading AIM A collapsible cattle feed container consists of wire mesh sides 4 which are hinged together with loops 5 and a base 1 with ports extending beyond the sides. The two opposite sides are secured to the base by shackles 2. When empty, the shackles 2 at one side may be opened and the sides folded flat, with one side lying against the base for transport or storage. The container is capable of retaining a bale of hay or straw on end. A lid 8 and side panels 7 protect the container contents against the weather, the panels only extending two thirds the length of the container to allow access to the feed through the wire mesh.