baber/WOPTO huggingface dataset:
Patent GB-282993-A (GB)
Title: Improvements in or connected with mechanism for imparting motion to conveyers of the jigging or shaker type
IPC: B65G27/00
Filed: 1927-01-15
Abstract: 282,993. Mavor &. Coulson, Ltd., and Mavor, S. M. Jan. 15, 1927. Jigging conveyers.-Motion is imparted to a jigging'conveyer by a motor A through a shaft B, gears 2, 3, shaft C, bevel gears 4, 5, shaft D, gears 6, 7, shaft E, crank 8, connecting rod 9, crank 10, shaft F, rocking arm G and a connection (not shown) joining the arm G and the conveyer. The arm G is adjustable radia.llv on its shaft to vary the throw. The mechanism is mounted on a bedplate H, and all the parts, 'except the arm G, are housed within an oil-retaining casing K.
Patent GB-413019-A (GB)
Title: Improvements relating to hub brake mechanism for use with the wheels of perambulators, invalid carriages and the like
IPC: B62L3/00
Filed: 1933-01-16
Abstract: 413,019. Perambulator &c. brakes. HUGHES, Ltd., G. H., and FIELDHOUSE, E. F., St. Stephen's Street, Birmingham. Jan. 16, 1933, No. 1350. [Class 103 (i).] Hub brake mechanism for perambulators, tricycles, wheeled toys &c. comprises an anchor plate 4 for the brake shoes, having a boss 4<a> of square or other internal section to fit non- rotatably upon the correspondingly shaped axle 5<a> and a tubular member 6 screwed into a cylindrical part of the boss and surrounding the part 5 of the axle. The member 6 is adapted to receive a plain hub or as shown a ball-bearing hub 7, the cones 9, 10 being screw-threaded on the member. The brake shown comprises a pair of shoes pivoted at 17 and released by springs 16 attached to the inner face of the shoes. By removing the cap 14 and cone 10 the wheel may be removed without disturbing the anchor plate or the brake operating connections.
Patent GB-112525-A (GB)
Title: Improvements in or relating to Electrical Governors or Speed Regulators for Electric Motors and the like Dynamo Electrical Machines.
Inventor: ANDERSON SAMUEL JOHN
IPC: H02P7/06
Filed: 1917-01-29
Abstract: 112,525. Anderson, S. J. Jan. 29, 1917. Systems for continuous-current motors only.-To regulate the speed of an electric motor, a condenser is placed in shunt to the armature or the field or both or to a resistance in the circuit, a reversing-switch driven by the motor or at a speed proportional to the motor speed changing the connexions of the condenser so that it is alternately charged and discharged. At increased speed of the motor the condenser discharge is greater over a given period and is used to either augment the field or oppose the armature current or both, thereby bringing the speed back to normal. As applied to the series-wound motor, the condenser 9 is in shunt to the armature 1 and field 2; the switch 3 may effect a number of reversals in each revolution. The condenser may be placed in shunt to a. resistance in series with the field. The application to shunt and compound wound motors is described. As applied for use as a motor-starter, the condenser is placed in shunt to the starting resistance and reduces its effort as the speed rises; at full speed, a relay sensitive to the frequency of reversals in the condenser or a centrifugal switch is used to short-circuit the resistance. As applied to a Wheatstone Morse telegraph transmitter, the vibrating compound lever 37, 40, Fig. 9, of the transmitter is used to reverse the connexion of the variable condenser 31 with the motor 30. When the paper strip is not inserted, the condenser controls the motor speed as described above; with the paper inserted and a blank being opposite the compound lever, vibration is prevented and, as a consequence, the motor speeds up; when a dot is transmitted, the condenser connections are reversed and the speed reduced, the resulting impulse being slightly prolonged; when a dash is transmitted, continuous reversals are prevented and the motor speed increases reducing the length of the impulse. As a result, the speed of signalling is increased. The Provisional Specification states that resistances, fuses, or auxiliary sources of current may be used in the governing circuits, and the apparatus may be applied to a telegraph receiver.
Patent GB-552943-A (GB)
Title: Wave amplitude limiting device for signal transmission systems
IPC: H03G11/06
Filed: 1942-02-03
Abstract: 552,943. Wireless receiving circuits. ZENITH RADIO CORPORATION. Feb. 3, 1942, No. 1424, Convention date, Dec. 26, 1940. [Class 40 (v)] In a limiter comprising two valves each having means for preventing one set of peaks of the applied signal from reaching the corresponding anode, the second valve is a screen grid valve having means for decreasing its plate voltage when the applied signal is inadequate whereby both the plate resistance and the noise output of the valve are substantially decreased. Fig. 1 shows the invention applied to a frequency modulation receiver in which the output from the intermediate frequency transformer 26 is fed to limiter valves 22, 23 and from these through a discriminator circuit 38 and double diode 46 to audio frequency stages 18, 19, and loudspeaker 21. The limiter valves 22,23 operate without self bias and serve to limit the negative, and positive peaks of the initial wave successively by anode current cut-off. Coupling between valves 22, 23 is by a large condenser 34 and parallel resistor 33 giving a predominantly capacitative load at the intermediate frequency. Resistor 33 reduces noise at low signal levels in co-operation with a large resistor 41 in the anode circuit of valve 23. With no signal resistor 33 makes grid 31 go positive and the increased anode current causes the voltage of anode 36 to fall due to resistor 41. This not only limits the anode current but reduces the anode resistance of valve 23 thus effectively shunting the discriminator input and thus reducing the audio output.
Patent GB-752218-A (GB)
Title: Improvements in or relating to snap fastener socket
Inventor: CARPINELLA MICHAEL JOSEPH
IPC: A44B17/00
Filed: 1954-01-18
Abstract: 752,218. Stud and socket fastenings. SCOVILL MANUFACTURING CO. Jan. 18, 1964, No. 1469/54. Class 44. A socket member 10 adapted for snap engagement with a stud member 15 of circular crosssection and which socket member is attachable to sheet-like material 22 by means of a pronged ring 21 insertable through the material into engagement with the socket member, comprises a single piece of sheet metal shaped to provide a plurality of resilient fingers 11 arranged round a central stud receiving opening, the free ends of the fingers being turned radially inwardly to form stud-gripping beada 12, and a breast portion 17 surrounding the fingers and having its inner lower edge integrally joined to the fingers, the breast portion extending from its inner lower edge in an upward and outward slope and being bent inwardly to provide a continuous rib 25 at its intermediate portion surrounding the beaded ends of the fingers sufficiently close to prevent outward distortion of the fingers beyond their elastic limits, the inwardly bent portion resulting in an interruption in the upward and outward slope of the breast portion providing two distinct anvil surfaces separated by the interruption, the first anvil surface being relatively steep upwardly and outwardly and the second anvil surface still sloping upwardly and outwardly but approaching closer to the horizontal plane, the first anvil surface being so sloped and of such length as to cause the prongs 20 of the pronged ring to be deflected so as to pass the interruption and strike the second anvil surface with sufficient angularity to effect further outward distortion of the prongs without danger of piercing through the second anvil surface. The breast portion terminates in a U-shaped annular rim 18 to provide an inturned retaining ring for the prongs 20. The rim 25 is spaced between 0.004 and 0.005 inches from the fingers to allow the fingers to snap over the stud head.
Patent GB-101495-A (GB)
Title: Improvements in Driving Gear for Plansifters.
IPC: B07B1/42
Filed: 1916-02-02
Abstract: 101,495. Robinson & Son, T., and Robinson, W. N. Feb. 2, 1916. Sieves with compound or variable motion.-Relates to driving-mechanism for plansifters of the kind in which the driving-shaft is hung from a support separate from the plansifter and connected thereto by a crank-pin. According to the invention, the pin is made adjustable in throw. A block b, secured to the end of the shaft a, is formed with an eccentric recess in which is fitted a cylindrical block d. The crank-pin e is secured eccentrically in the block d, which may be turned in the recess and locked, as by the serrated clamping-plate f engaging the notched quadrant h.
Patent GB-1137383-A (GB)
Title: Improvements in or relating to mechanism for shaping cams
IPC: B24B47/12
Filed: 1966-01-13
Abstract: 1,137,383. Grinding. UNITED SHOE MACHINERY CORP. 13 Jan., 1966 [14 Jan., 1965], No. 1590/66. Heading B3D. A machine for use with a grinding wheel for producing a cam with a sinusoidal periphery comprises a first assembly 12 provided with an axis, a second assembly 13 also provided with an axis parallel to the axis of the first assembly, the second assembly carrying a workpiece 22, means adapted to move the second assembly eccentrically about the axis of the first assembly, and means adapted to rotate the second assembly about its axis. The machine consists of a casting 32 which is secured to the bed of a grinding machine and rotatably supports a spindle 28 in bearings 30, the spindle forming part of the first assembly and being rotatable by a belt drive 26 from a drive motor. A guide 48 is secured to the spindle and is formed with a diametral slot 50, Figs. 5-7 (not shown), which receives a slide hub 52 adjustable along the slot by means of a screw 76 having portions of opposite hand in a block 74 in the guide 48 and a block 78 on the slide. The hub rotatably supports a clamping plate 34, forming part of the second assembly 13, for the workpiece 22 on a pair of bearings 64, the distance between the axes of the spindle 28 and clamping plate 13 being adjustable by the screw 76 to vary the eccentricity of the clamping member and workpiece relative to the axis of the spindle. The clamping member is rotatable relative to the spindle by a gearing assembly comprising a gear 68 secured to the spindle and engaging a gear 88 mounted on the shaft 86 of a gear mechanism having a gear 90 which meshes with gear 88 and with an internal gear 62 secured to the clamping member 13. The gear 90 is mounted on an arm which is movable about the shaft 86, and the gear 90 is maintained in contact with the gear 62 by engagement of a roller 98 coaxial with the gear 90 engaging an inner rim of the gear 62, an outer rim of the gear engaging a cam roll 94 which is mounted eccentrically on a pivot 96. The roll can be moved from its operative position by a lever 100 to disengage gear 90 and 62 during adjustment of the slide hub 52 along the slot 48 by means of the screw 76. The gearing may be such that the clamping plate 34 rotates an integral number, say two or three, times for each rotation of the spindle so that the cam 22 is formed with two or three lobes. The clamping plate is secured in its adjusted position by tightening a nut 44 on a bolt 36 connected to a clamping member 42.
Patent GB-987924-A (GB)
Title: Improvements in or relating to the manufacture of sealing sections of natural or synthetic sponge rubber
IPC: B29D99/00
Filed: 1962-01-16
Abstract: 987,924. Extruding natural and synthetic rubber. REGIE NATIONALE DES USINES RENAULT. Jan. 16, 1962 [Feb. 3, 1961], No. 1623/62. Heading B5A. A sealing section of sponge natural or synthetic rubber for use in a motor vehicle is manufactured by extruding a substantially circular sectioned profile from a mix containing a swelling agent and natural or synthetic rubber, a tensioning cord being placed along the axis of the profile during extrusion, covering the profile under vacuum in a second extruder with a coating of weather-resistant natural or synthetic rubber, after which talcum is applied to the profile, which is pulled by a capstan at constant speed through the second extruder and talcumizing means, and which is then heated in a mould in order to foam the mix to form sponge material.
Patent GB-905028-A (GB)
Title: Improvements in or relating to domestic sanitary installations
IPC: A47K4/00
Filed: 1959-01-16
Abstract: 905,028. Baths; wash-basins; sanitary closets. TREAND, P. Jan. 16, 1959 [Jan. 24, 1958], No. 1671/59. Class 26. A domestic sanitary unit comprises a bathtub 8, a wash-hand basin 9 and walls 2, 3, 4, 5-6 extending up to at least the level of the higher of the tops of the bath-tub 8 and basin 9, the tub 8, basin 9 and walls being integral with one another. In the form shown, the floor 1 is formed integral with the tub 8 and there is a water-closet basin 10 with its top below the level of the higher of the tops. The wall 5-6 has an opening 7 serving as an entrance for the user. The underneath face 11 of tub 8 is at a higher level than the underneath face of the floor 1. The unit may be of synthetic plastics materials.
Patent GB-707181-A (GB)
Title: Improvements relating to cushion springs
IPC: A47C7/22
Filed: 1952-01-21
Abstract: 707,181. Spring upholstery. EICKHORN, K. H., and BREMSHEY, F., [trading as BREMSHEY & CO.]. Jan. 21, 1952 [Jan. 22, 1951], No. 1674/52. Class 52(4) A supporting-surface 9 is mounted on a frame 2 by V-shaped springs one limb of each of which has a resilient loop 7 intermediate its ends. The loop is preferably in the upper limb and the free end 5 may be formed with an eyelet to engage a border wire 4. German Specification 820,261 is referred to.
Patent GB-339166-A (GB)
Title: Improvements in starting devices for internal combustion engines
IPC: F02N15/06
Filed: 1930-01-17
Abstract: 339,166. Taylor, G. A. Jan. 24, 1929, [Convention date]. Turning-gear.-A starting device comprises an electric motor arranged to drive a pinion 42, slidable on the armature shaft 21 into engagement with an engine gear 51, through a clutch which has associated therewith a spring which normally ensures a light engagement of the clutch parts and a second spring which is normally substantially unstressed but which ensures a tight engagement of the clutch parts when the driving connection has been established. The pinion 42 is integral with a sleeve 24 pressed rearwardly by a light spring 28, while a heavy spring 30 within the sleeve acts on a clutch member 32 splined in the sleeve and co-operating with a clutch member 36 which is threaded to engage threads 23 on the shaft or on a sleeve secured thereon. Rearward movement of the member 36 is limited by a collar 40 secured to the shaft. In the disengaged position shown, the spring 30 is substantially unstressed and the spring 28 maintains light engagement of the parts 32, 36. When the motor is energized, the parts move forward until the pinion, after meshing with the gear 51, engages a stop washer 22<1>, the spring 30 remaining unstressed. Thereafter, the continued movement of the member 36 causes compression of the spring 30 and the engine is rotated. If end-butting of the teeth occurs, the spring 30 becomes slightly compressed and the pinion is turned into meshing position, after which the spring expands until the axial movement of the pinion is completed. As the engine speed varies during its compression periods, a slight axial movement of the clutch parts 32, 36 takes place. but no axial movement of the pinion occurs. If backfiring occurs, the members 32, 36 slip. When the engine begins to operate under its own power, the member 36 moves rearwardly and the spring 30 expands before the pinion is demeshed under the action of the spring 28. The cone clutch may be replaced by a plate clutch.
Patent GB-562413-A (GB)
Title: Improvements in casings for electrical components such as condensers
IPC: H01G4/224
Filed: 1943-02-03
Abstract: 562,413. Condensers. STEPHAN, F. C. Feb. 3, 1943, No. 1791. [Class 37] A tubular container 2 for an electrical component, such as a condenser 1, is closed at least 'at one end by a cover 3 screwed to the container, electric leads passing through a metal insert 5 or a supporting screw 7, embedded in each end and soldered thereto. The interspace 4 may be filled with wax, petroleum jelly, &c. Specification 460,030 is referred to.
Patent GB-1208167-A (GB)
Title: Process for the continuous recovery of vinyl esters and carboxylic acids
IPC: C07C51/44
Filed: 1968-01-12
Abstract: 1,208,167. Recovery of vinyl esters. FARBWERKE HOECHST A.G. 12 Jan., 1968 [12 Jan., 1967], No. 1815/68. Heading C2C. Vinyl esters and carboxylic acids are continuously recovered from crude mixtures originating from the reaction of carboxylic acids with ethylene and oxygen, which mixture contains the ester, unreacted acid and water, by distilling the mixture in a first distilling column, if desired in the presence of a further substance which forms an azeotrope with water, and separating the azeotrope and the by-products having a lower boiling point than the vinyl ester at the head of the column, withdrawing from the sump of the column a practically anhydrous mixture, distilling said mixture in a second distilling column, withdrawing from the head of the second column the vinyl ester, from one or more concentrating zones between the head and the sump at least a major part of the by-products having a higher boiling point than the vinyl ester, and below the lowest concentrating zone or from the sump the carboxylic acid and the rest of the by-products. It is preferred to use the vinyl ester contained in the crude mixture as the substance forming an azeotrope with water. After separation of the vinyl ester from the azeotropic mixture obtained at the head of the first distilling column, the ester is recycled into the column. Examples describe the process applied to a mixture containing acetic acid, vinyl acetate, water, ethyl acetate and acetaldehyde and one containing isobutyric acid, vinyl isobutyrate, water, ethyl isobutyrate and acetaldehyde.
Patent GB-1279781-A (GB)
Title: Improvements relating to lightning protective systems for electric overhead lines, tall structures and environments
Inventor: HODGSON DOUGLAS
IPC: H02G13/00
Filed: 1971-01-15
Abstract: 1279781 Protective arrangements for transmission systems D HODGSON 15 Jan 1971 2089/71 Heading H2H Apparatus for the protection of overhead electric lines against lightning discharges comprises earth wires la, if which are secured to terminals 3 attached to the upper ends of the legs 8 of a pylon, the terminals 1a, 1b being interconnected by a conductor 2 and connected to earth electrodes 7 by means of conductors 6 running down the legs 8 of the pylon. Thus a protected zone bounded by a line 50 is produced so protecting the overhead electric lines which are carried by insulators 21-26 secured to a support 13 carried by the pylon. The support 13 may also carry earth conductors on insulators 12a, 12b. The legs 8 of the pylon may be arranged vertically instead of being crossed as in Fig. 1.
Patent GB-194863-A (GB)
Title: Improved construction of air regulator for atmospheric gas burners
IPC: F23D14/64
Filed: 1922-01-24
Abstract: 194,863. Aird, K., and Wortley, G. W. Jan. 24, 1922. Atmospheric gas burners.-A gas burner com.- prises a mixing-tube A having air-inlets B in its wall at one end A<1>, through a hole in which is screwed an externally screw-threaded sleeve E, provided with a plain bore adapted to fit on a gas nipple C and with an internally screw. threaded milled or other ring-disc F, adapted to be screwed towards or away from the open end G of the mixing-tube to regulate the air supply.
Patent GB-1500453-A (GB)
Title: Articulated main landing gear
IPC: B64C25/14
Filed: 1976-01-20
Abstract: 1500453 Aircraft undercarriages PNEUMO CORP 20 Jan 1976 [23 June 1975] 02191/76 Heading B7G A retractible undercarriage, expecially for a helicopter, comprises a shock-absorbing oleo strut 12 pivoted to the fuselage 11 about a retraction axis 30 and an articulation axis 45, and a three-member drag brace assembly 35. The brace assembly includes three pivotally connected members 36, 41 and 47. The first member 36 is pivoted to the fuselage about an axis 38 and to the second member 41 about an axis which coincides with the articulation axis 45. The second member is pivoted to the third member 47 about an axis 48, which is perpendicular to the articulation axis when the undercarriage is extended, and the third member is pivoted to the strut 12 by means of a universal joint 50. A lockable actuator extends between the first brace member 36 and the fuselage to move the strut between retracted and extended positions relative to the fuselage. In an alternative form of actuator, Fig. 4 (not shown), an over-centre linkage automatically locks the actuator in its extended arid retracted Positions.
Patent GB-606996-A (GB)
Title: Improvements in, or relating to, the manufacture or production of steel, or alloy steel strip
IPC: C21D9/52
Filed: 1946-01-23
Abstract: A process of producing high carbon steel strip comprises subjecting billets of low carbon steel to a series of rolling operations and then heating the low carbon steel strip so produced in a gaseous carburizing atmosphere.  The carburizing treatment is carried out in a continuous furnace, at a temperature of from 800 DEG C.-1130 DEG C. for a period of from 2 to 100 mins.  The carburizing atmosphere may be produced as described in Specifications 564,345 and 573,085.  For producing a strip having a hypereutectoid carbon content, the carburizing treatment is preferably carried out at between 900 and 1000 DEG C. for from 5 to 20 mins. and for a strip having a hypereutectoid or eutectoid carbon content, the treatment is carried out for a period of from 2 to 10 mins. followed by a further heat treatment at the same temperature and for the same period in a neutral or inert atmosphere so that the carbon diffuses until it is uniformly distributed throughout the strip section.  As the strip tends to distort during the carburizing and diffusing heat treatments, the carburizing strip is given a final cold rolling operation after which the strip is hardened and tempered.  Reference has been directed by the Comptroller to Specification 597,022.
Patent GB-1121156-A (GB)
Title: Treatment of copper bearing complex sulphides
IPC: C22B15/00
Filed: 1967-01-16
Abstract: The responsiveness of copper and iron containing sulphide complexes to leaching by aqueous acid under oxidizing conditions to obtain copper values, is improved by heating the sulphide complex with elemental sulphur at 300-600 DEG  C. for a time that is sufficient for a portion of the sulphur to be taken up by the complex.  The complex may be chalcopyrite or bomite, and from about 0.5-1.0 moles of sulphur per mole of chalcopyrite, is used. The complex which has been treated as above may be leached in aqueous sulphuric acid under oxidizing conditions at a temperature below 150 DEG  C. to extract copper.  Elemental sulphur may be used, or alternatively a sulphur containing compound which at the temperature of the subsequent heating step, will decompose to provide elemental sulphur within the reaction zone.